阅读说明：本技术 一种制氧机及制氧方法 (Oxygen generator and oxygen generation method ) 是由 刘璐 王昕� 于 2020-09-15 设计创作，主要内容包括：本发明公开了一种制氧机,包括上端盖、筛筒和下端盖,所述上端盖和所述下端盖分别连接在所述筛筒的两端部,所述上端盖设置有空气进口,所述筛筒内从上到下依次设置有压紧层、第一过滤层、除湿层、氧气吸附层、第二过滤层,所述压紧层设置有弹簧结构,所述除湿层内含除湿材料,所述下端盖设置有氧气出口。通过上述方式,本发明可以提供一种结构简单,操作方便,而且可以对压缩空气进行缓冲、过滤、除湿后再通过制氧分子筛,防止潮湿且带有强力冲击的压缩气体和制氧分子筛直接接触,大大提高了制氧机的使用寿命。(The invention discloses an oxygen generator which comprises an upper end cover, a screen cylinder and a lower end cover, wherein the upper end cover and the lower end cover are respectively connected to two end parts of the screen cylinder, the upper end cover is provided with an air inlet, a compaction layer, a first filter layer, a dehumidification layer, an oxygen adsorption layer and a second filter layer are sequentially arranged in the screen cylinder from top to bottom, the compaction layer is provided with a spring structure, the dehumidification layer contains dehumidification materials, and the lower end cover is provided with an oxygen outlet. Through the mode, the oxygen generation molecular sieve is simple in structure and convenient to operate, compressed air can be buffered, filtered and dehumidified and then passes through the oxygen generation molecular sieve, the compressed air which is moist and has strong impact is prevented from being in direct contact with the oxygen generation molecular sieve, and the service life of the oxygen generator is greatly prolonged.)

1. The utility model provides an oxygenerator, oxygenerator includes upper end cover (110), a sieve section of thick bamboo (120) and lower extreme cover (130), upper end cover (110) with lower extreme cover (130) are connected respectively in the both ends of a sieve section of thick bamboo (120), its characterized in that:

the upper end cover (110) is provided with an air inlet;

a compaction layer (140), a first filter layer (150), a dehumidification layer (160), an oxygen adsorption layer (170) and a second filter layer (180) are sequentially arranged in the screen cylinder (120) from top to bottom;

the compression layer (140) is provided with a spring structure;

the dehumidifying layer (160) contains dehumidifying material;

the lower end cover (130) is provided with an oxygen outlet.

2. The oxygen generator according to claim 1, wherein: the dehumidifying material in the dehumidifying layer (160) is sodium sieve or calcium carbonate desiccant.

3. The oxygen generator according to claim 1 or 2, wherein: the air inlet is arranged at the center of the upper end cover (110), a primary spring (142) structure is arranged at the air inlet, a cover plate (141) is fixedly connected to the upper side of the primary spring (142), the cover plate (141) is matched with the air inlet, and the lower side of the primary spring (142) is connected with the inner structure of the upper end cover (110).

4. The oxygen generator according to any one of claims 1 to 3, wherein: compress tightly layer (140) and constitute by second grade spring (143), hollow connection platform (144) and ring (145), hollow connection platform (144) set up upper end cover (110) below, second grade spring (143) set up inside hollow connection platform (144), hollow connection platform (144) below fixedly connected with ring (145), ring (145) are fixed first filter layer (150) top.

5. The oxygen generator according to claim 4, wherein: the first filter layer (150) is composed of a first felt (152), a first sponge body (151) and a first flange plate (153).

6. The oxygen generator according to claim 5, wherein: the second filter layer (180) is composed of a second felt (182), a second sponge body (183) and a second flange plate (181).

7. The oxygen generator according to claim 5 or 6, wherein: the first felt (152) is connected to the inner wall of the screen drum (120) in a matching mode, a first sponge (151) is fixed above the first felt (152), a first flange plate (153) is fixed below the first felt (152), and the first felt (152) and the first flange plate (153) are fixed through pins.

8. The oxygen generator according to claim 6, wherein: the second felt (182) is connected to the inner wall of the screen drum (120) in a matching mode, a second sponge body (183) is fixed below the second felt (182), a second flange plate (181) is fixed above the second felt (182), and the second felt (182) and the second flange plate (181) are fixed through pins.

9. The oxygen generator according to claim 1, wherein: the oxygen outlet is arranged on the side of the lower end cover (130), and the upper end cover (110) and the lower end cover (130) are both of cylindrical hollow structures.

10. An oxygen generation method using the oxygen generator according to any one of claims 1 to 9, characterized in that:

a. compressing the air and then introducing the compressed air into an air inlet of an upper end cover (110);

b. compressed air is firstly subjected to primary filtration through a compaction layer (140) and a first filter layer (150);

c. the compressed air further flows into the dehumidification layer (160) for dehumidification and drying;

d. the dried air flows through the oxygen absorption layer (170) to generate oxygen, and then is further filtered through the second filter layer (180);

e. the produced oxygen flows out through an oxygen outlet of the lower end cover (130).

Technical Field

The invention relates to the technical field of medical instrument preparation, in particular to an oxygen generator.

Background

Oxygen generators, commonly used in the medical field, help patients with disease to perform oxygen therapy or help patients with respiratory disease to clean the respiratory system and alleviate symptoms.

At present, most of oxygen generators in the market separate nitrogen and oxygen in air by utilizing the adsorption performance of a molecular sieve, and finally obtain high-concentration oxygen. In this way, there are many problems, such as the compressed air directly contacting the molecular sieve causes the molecular sieve to be wet, the molecular sieve is easy to crush by overpressure and to descale, which all result in short lifetime of the molecular sieve and further affect the lifetime of the oxygen generator.

Wherein, patent number is CN 205886422U's patent discloses a technique, a composite filter who falls the function of making an uproar is dehumidified in utensil that is used for the oxygenerator is provided, through with dehumidification and filtering capability integration together, and set up the air intake department at the casing, both can reduce the overall dimension of casing, can also increase dehumidification and filterable effect, and through setting up the one-level filter screen, filter the air, increase oxygen concentration, and be in the same place dehumidification and filter equipment integration, effectively reduce the noise that gaseous when the shell inner flow produced.

Although the dehumidification function is added, the dehumidification effect is not obvious by adopting the alumina particles as the dehumidification filler, the impact of compressed air cannot be relieved, the pulverization and the powder removal of the oxygen generation molecular sieve are easy to occur, and the protection of the molecular sieve is not perfect.

Therefore, it is necessary to design a molecular sieve oxygen generator with filtering function, good dehumidification effect and capability of slowing down the impact of compressed air to protect the oxygen adsorption layer.

Disclosure of Invention

In order to overcome the problems that compressed air entering the existing oxygen generator directly contacts a molecular sieve to cause the molecular sieve to be wetted, the molecular sieve is easy to crush by overpressure and to loose powder to influence the service life of the oxygen generator, the invention provides an oxygen generator, which adopts a layered filling and filling mode, a buffer layer is added at an air inlet of a sieve cylinder, the compressed air enters from the air inlet and is subjected to the action of a spring to reduce the impact force of the compressed air, a dehumidification layer is arranged behind the buffer layer, the filling material of the dehumidification layer is sodium sieve or calcium carbonate desiccant, the compressed air is dried and then enters an oxygen adsorption layer to generate oxygen, so that the moist compressed air is prevented from directly contacting with an oxygen generation lithium sieve in the oxygen adsorption layer to prevent the oxygen generation lithium sieve from being wetted and pulverized, and the service life of the; in addition, the sodium sieve or the calcium carbonate drying agent on the dehumidification layer has high strength, so that the high-strength compressed air can be further slowed down to directly scour the lithium sieve on the oxygen adsorption layer, and the direct contact between the oxygen-making lithium sieve and the high-strength compressed air is avoided, thereby avoiding the pulverization and powder removal problems of the oxygen-making molecular sieve.

In order to achieve the purpose, the invention adopts the technical scheme that:

the utility model provides an oxygenerator, is connected by upper end cover, a sieve section of thick bamboo and lower extreme cover normal running fit, the upper end cover is provided with air intlet, from the top down has set gradually in the sieve section of thick bamboo and has compressed tightly layer, first filter layer, dehumidification layer, oxygen adsorbed layer, second filter layer, it is provided with spring structure to compress tightly the layer, contain the dehumidification material in the dehumidification layer, the lower extreme cover is provided with the oxygen export.

Furthermore, the dehumidifying material in the dehumidifying layer is sodium sieve or calcium carbonate desiccant.

Further, air inlet sets up the central point of upper end cover and puts, air inlet department is provided with one-level spring structure, one-level spring top fixedly connected with apron, the apron with the air inlet cooperation, one-level spring below with upper end cover inner structure connects.

Further, the compressing layer comprises a second-stage spring, a hollow connecting table and a circular ring, the hollow connecting table is arranged below the upper end cover, the second-stage spring is arranged inside the hollow connecting table, the circular ring is fixedly connected below the hollow connecting table, and the circular ring is fixed above the first filter layer.

Furthermore, the first filter layer is composed of a first felt, a first sponge body and a first flange plate.

Furthermore, the second filter layer is composed of a second felt, a second sponge body and a second flange plate.

Furthermore, the first felt is connected to the inner wall of the screen drum in a matched mode, a first sponge body is fixed above the first felt, a first flange plate is fixed below the first felt, and the first felt and the first flange plate are fixed through pins.

Furthermore, the second felt is connected to the inner wall of the screen drum in a matched mode, a second sponge is fixed below the second felt, a second flange plate is fixed above the second felt, and the second felt and the second flange plate are fixed through pins.

Further, the oxygen outlet is arranged on the side of the lower end cover.

Further, the upper end cover and the lower end cover are both of cylindrical hollow structures.

Further, the method for preparing oxygen by using the oxygen generator comprises the following steps: a. compressing the air and then introducing the compressed air into an air inlet of an upper end cover (110); b. compressed air is firstly subjected to primary filtration through a compaction layer (140) and a first filter layer (150); c. the compressed air further flows into the dehumidification layer (160) for dehumidification and drying; d. the dried air flows through the oxygen absorption layer (170) to generate oxygen, and then is further filtered through the second filter layer (180); e. the produced oxygen flows out through an oxygen outlet of the lower end cover (130), and finally the whole oxygen production process is finished.

Compared with the prior art, the invention has the beneficial effects that:

1. according to the invention, the compaction layer is arranged, one end of the spring structure is connected with the upper end cover of the oxygen generator, granular matters such as adsorbent filled in the cylinder can be compacted from the top, meanwhile, with the continuous use of the oxygen generator, the materials of the dehumidification layer and the oxygen adsorption layer are reduced, the layer heights of the dehumidification layer and the oxygen adsorption layer are reduced, the spring is stretched along with the reduction of the layer heights of the dehumidification layer and the oxygen adsorption layer, and then the compaction is continued, so that the compactness of the internal structure of the oxygen generator is ensured.

2. According to the invention, the dehumidification layer is arranged, the sodium sieve or the calcium carbonate drying agent is filled in the dehumidification layer, and the dehumidification and drying are carried out on the entering humid air, so that the direct contact between the humid compressed air and the oxygen generation lithium sieve in the oxygen adsorption layer is avoided, the oxygen generation lithium sieve is prevented from being damped and pulverized, and the service life of the oxygen generation lithium sieve is prolonged.

3. According to the invention, the sodium sieve or the calcium carbonate drying agent is used as a dehumidification layer material, so that the strength is high, the direct scouring of the lithium sieve of the oxygen adsorption layer by high-strength compressed air can be further slowed down, and the direct contact between the oxygen-making lithium sieve and the high-strength compressed air is avoided, thereby avoiding the pulverization and powder removal problems of the oxygen-making molecular sieve.

4. The invention increases the passage for compressed air to pass through by adopting a layered filling and filling mode, and improves the oxygen production effect.

Drawings

FIG. 1 is an isometric view of the present invention;

FIG. 2 is an internal layered structure of the present invention;

FIG. 3 is a cross-sectional view of the present invention;

the parts in the drawings are numbered as follows: 110. an upper end cover; 120. a screen cylinder; 130. a lower end cover; 140. a compression layer; 141. a cover plate; 142. a primary spring; 143. a secondary spring; 144. a hollow connecting table; 145. a circular ring; 150. a first filter layer; 151. a first sponge body; 152. a first felt; 153. a first flange plate; 160. a dehumidification layer; 170. an oxygen-adsorbing layer; 180. a second filter layer; 181. a second flange plate; 182. a second felt; 183. a second sponge body.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.

It should be noted that, in order to avoid obscuring the present invention with unnecessary details, only the structures and/or processing steps closely related to the aspects of the present invention are shown in the drawings, and other details not closely related to the present invention are omitted.

In addition, it is also to be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Examples

Referring to fig. 1, in the present embodiment, an oxygen generator is designed, and is formed by rotationally and cooperatively connecting an upper end cover 110, a sieve cylinder 120 and a lower end cover 130, so as to facilitate detachment of the oxygen generator and cleaning and maintenance, the upper end cover 110 and the lower end cover 130 are both arranged in a cylindrical hollow structure, so as to facilitate gas passage, simultaneously optimize the structure and reduce the weight of the oxygen generator, the upper end cover 110 is provided with an air inlet through which compressed gas enters the oxygen generator, a compacting layer 140, a first filter layer 150, a dehumidifying layer 160, an oxygen adsorbing layer 170 and a second filter layer 180 are sequentially arranged in the sieve cylinder 120 from top to bottom, the compacting layer 140 is fixedly connected with each other, the compacting layer 140 is provided with a spring structure, so as to compact each layer below the compacting layer 140, the dehumidifying layer 160 contains dehumidifying material, so as to dehumidify and dry passing compressed air, the lower end cover 130 is provided with an oxygen outlet, the oxygen outlet is arranged at a side surface of the, the prepared high-concentration oxygen is led out from an oxygen outlet.

The dehumidifying material in the dehumidifying layer 160 is sodium sieve or calcium carbonate desiccant, which has better dehumidifying effect than alumina particles used in the existing oxygen generator, and high strength, and can effectively reduce the impact force of high-strength compressed air when passing through.

As shown in fig. 2, the air inlet is disposed at the center of the upper end cover 110, a primary spring 142 is disposed at the air inlet, a cover plate 141 is fixedly connected above the primary spring 142, the cover plate 141 is matched with the air inlet, and the lower part of the primary spring 142 is structurally connected with the inner part of the upper end cover 110, wherein the axes of the air inlet, the cover plate 141 and the primary spring 142 are overlapped, so as to facilitate spring compression.

As shown in fig. 2, the compressing layer is composed of a secondary spring 143, a hollow connecting table 144 and a ring 145, the hollow connecting table 144 is disposed under the upper cap 110, the secondary spring 143 is disposed inside the hollow connecting table 144, the ring 145 is fixedly connected under the hollow connecting table 144, and the ring 145 is fixed above the first filter layer 150, in this way, the granular matters such as the adsorbent filled in the cartridge can be compressed from the top by the pressing state of the whole spring structure connected under the upper cap 110.

In this embodiment, the first filter layer 150 is composed of a first felt 152, a first sponge 151 and a first flange 153, the first felt 152 is connected to the inner wall of the screen cylinder 120 in a matching manner, the first sponge 151 is fixed above the first felt 152, the filter structure composed of the first sponge 151 and the first felt 152 can effectively filter passing compressed air to remove impurities, the first flange 153 is fixed below the first felt 152, the first felt 152 and the first flange 153 are fixed by pins, the middle of the first flange 153 is a through hole structure, so that the filtered air enters the dehumidification layer 160, and an annular flange is arranged on the periphery of the first flange 153 and can be in sealing engagement with the inner wall of the screen cylinder 120.

In this embodiment, the second filter layer 180 is composed of a second felt 182, a second sponge 183, and a second flange 181, the second felt 182 is connected to the inner wall of the screen cylinder 120 in a fitting manner, the second sponge 183 is fixed below the second felt 182, the second sponge 183 and the second felt 182 form a filter structure, which can effectively filter the passing compressed air to remove impurities, the second flange 181 is fixed above the second felt 182, the second felt 182 and the second flange 181 are fixed by pins, the middle of the second flange 181 is a through hole structure, which facilitates the passage of air, and the second flange 181 is provided with an annular flange at its periphery, which can be in sealing engagement with the inner wall of the screen cylinder 120.

Through the way, the invention integrally adopts a cylindrical structure, functional layers are sequentially arranged from top to bottom inside, a layered filling and filling mode is adopted for the dehumidification layer and the oxygen adsorption layer, the effect of long acting time is better, after compressed air enters from an air inlet, the first filter layer carries out primary filtration to remove impurities contained in the compressed air, then the compressed air passes through the dehumidification layer which is next to the first filter layer, the compressed air is dried and dehumidified under the action of a sodium sieve or a calcium carbonate desiccant which is filled in the dehumidification layer, meanwhile, the desiccant strength of the dehumidification layer is higher to reduce the impact force of the compressed air, the dried compressed air passes through the oxygen adsorption layer, high-purity oxygen is obtained through the adsorption effect of a lithium sieve, secondary filtration is carried out through the second filter layer, and impurities possibly carried by the gas after passing through the dehumidification layer and the oxygen adsorption layer are further removed, the finally produced oxygen is discharged from the oxygen outlet.

The above description is only for the purpose of illustrating the technical solutions of the present invention and is not intended to limit the same; although the present invention 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 solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; all the equivalent structures or equivalent processes performed by using the contents of the specification and the drawings of the invention, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.