Oxygen generator molecular sieve tower end cover and molecular sieve tower combined structure
By using a standardized molecular sieve tower end cap and combined structure, the problems of complex structure and large footprint of traditional oxygen generators are solved, enabling rapid adjustment of oxygen production and convenient installation, while reducing cost and complexity.
Patent Information
- Application Number
- CN202422908699.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Priority Date
- 2024-10-22
- Filing Date
- 2024-11-28
- Publication Date
- 2025-12-05
- Estimated Expiration
- 2034-11-28
AI Technical Summary
Traditional large-scale oxygen concentrators have complex structures, require large investments, and have high site requirements. Furthermore, existing modular oxygen concentrators have a large number of parts, complex structures, and are difficult to maintain and disassemble.
The molecular sieve tower end caps and assembly structure are designed with standardization. The oxygen production can be adjusted by quickly changing the number of molecular sieve towers. The gas channels and threaded holes of the end caps enable rapid assembly. Adjacent end caps are fixed with bolts, forming an internal gas channel without the need for additional pipeline connections.
It enables rapid assembly and disassembly of molecular sieve towers, reduces design and material costs, improves the interchangeability and ease of installation of parts, solves the problems of complex equipment structure and large footprint, and has good system sealing.
Smart Images
Figure CN223628356U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model mainly relates to the technical field of molecular sieve oxygen generator, and specifically relates to a molecular sieve tower end cover and molecular sieve tower combination structure of oxygen generator. BACKGROUND
[0002] The basic principle of the molecular sieve oxygen generator is that air is compressed by a compressor and then enters the molecular sieve, and the left and right two groups of molecular sieves work in the adsorption phase, the desorption phase and the pressure equalization phase in turn, and the separated oxygen enters the gas storage tank through the one-way valve and reaches the gas outlet through related components. The traditional large oxygen generator generally adopts A and B two molecular sieve tower designs, and when the oxygen demand increases, only larger molecular sieve towers can be used, which has very high requirements for the site, and even the surrounding wall of the installation site needs to be demolished and processed. Moreover, the traditional large oxygen generator has a complex structure, high production and installation cost, and large equipment investment.
[0003] In the prior art, CN212356531U "Combined oxygen generator" is composed of multiple modules, including one or more air compression modules, one or more oxygen generation modules and one or more booster modules. The air compression module is connected to the oxygen generation module through a gas pipeline, the oxygen generation module is connected to the booster module through a gas pipeline, and the air compression module, the oxygen generation module and the booster module are connected to each other through electrical signals. The combined structure can meet the different needs of users while reserving a group of spares according to the user's demand with N+1 module quantity.
[0004] The above technology combines the oxygen generation modules, each module is designed in a standardized manner, and the number of modules is N+1, which is equipped according to the user's demand, and one group of spares is reserved. However, each oxygen generation module needs to be composed of a shell, internal pipelines, a molecular sieve tower, a solenoid valve, a circuit and other components, the number of components is large, the structure is complex, and the maintenance and disassembly are relatively complex. Utility model content
[0005] In order to solve the problems of the prior art, the utility model combines the prior art and is practical, and provides a molecular sieve tower end cover and molecular sieve tower combination structure of oxygen generator. The technical advantage mainly lies in that the number of molecular sieve towers can be quickly changed to combine different oxygen production capacity oxygen generators.
[0006] The technical scheme of the utility model is as follows:
[0007] According to one aspect of the utility model, a molecular sieve tower end cover of an oxygen generator is provided, a bottom through hole is arranged on the bottom end face of the end cover, an air duct is arranged in the end cover, the air duct is communicated with the bottom through hole, the air duct forms a first side air inlet and a second side air inlet on the two side end faces of the end cover respectively, and a sealing ring groove is arranged at the first side air inlet or the second side air inlet.
[0008] Further, the end cover with the end face of the first side vent is provided with a plurality of threaded holes, and the end cover with the end face of the second side vent is provided with a plurality of bolt holes, and the threaded holes and the bolt holes are correspondingly arranged.
[0009] Further, the axis of the air channel is vertically arranged with the bottom through hole, the first side vent and the second side vent are coaxially arranged, and the threaded hole and the corresponding bolt hole are coaxially arranged.
[0010] Further, the bottom end face of the end cover is provided with a plurality of bottom mounting holes, and the top end face of the end cover is provided with a plurality of top mounting holes.
[0011] According to another aspect of the utility model, provide a kind of molecular sieve tower combination structure of oxygen generator, including multiple molecular sieve towers, the molecular sieve tower includes molecular sieve barrel, the molecular sieve barrel upper and lower ends are provided with above-mentioned end cover, and the sealing ring is installed in the sealing ring groove of end cover, and the air channel arranged on the end cover of adjacent molecular sieve tower is connected by first side vent and second side vent.
[0012] Further, the end covers of adjacent molecular sieve towers are fixedly connected by bolts.
[0013] Further, the first side vent or the second side vent of the end cover of the outermost molecular sieve tower is provided with a baffle.
[0014] Further, the molecular sieve barrel is cylindrical, the inner wall is circular and smooth, and the molecular sieve barrel has threaded holes at both ends for mounting end covers.
[0015] The utility model has the advantages of:
[0016] 1. The end cover structure provided by the utility model adopts a general part structure design, can be applied to the upper end cover and the lower end cover of the molecular sieve, the air channel structure of the end cover can conveniently dock and connect between adjacent end covers, so that the end cover can quickly combine the molecular sieve towers when applied to the molecular sieve tower, and the standardized end cover structure design can greatly save design cost, material cost and production cost, standardized production is easier to control the quality of parts, improve the interchangeability of products, and the replacement of parts is easier to operate.
[0017] 2. The molecular sieve tower combination structure provided by the utility model, the molecular sieve tower barrel and the upper and lower end covers are general parts, so during production, the size of the molecular sieve tower does not need to be changed according to customer needs, but the number of molecular sieve towers is quickly increased or reduced to change the oxygen production demand, and by unifying the size and structure of the molecular sieve tower and the upper and lower end covers, the standardization of parts can be realized, and then standardized design and production can be realized.
[0018] 3. The molecular sieve tower combination structure has novel design concept, and after the end cover part is connected and sealed, an air passage is formed in the inside, the molecular sieve towers in each group do not need to be connected by pipelines again, no matter how many groups of molecular sieve towers are equipped, only the frontmost molecular sieve tower needs to be connected with a set of pipeline system, the problems of complex equipment structure and large floor area in the prior art are solved, the system has good sealing performance, and is convenient to install. BRIEF DESCRIPTION OF DRAWINGS
[0019] BRIEF DESCRIPTION OF DRAWINGS Figure 1 is a schematic view of an end cover three-dimensional structure Figure 1 .
[0020] BRIEF DESCRIPTION OF DRAWINGS Figure 2 is a schematic view of an end cover three-dimensional structure Figure 2 .
[0021] BRIEF DESCRIPTION OF DRAWINGS Figure 3 is a schematic view of an end cover three-dimensional structure Figure 3 .
[0022] BRIEF DESCRIPTION OF DRAWINGS Figure 4 is a three-dimensional view of the molecular sieve tower combination structure.
[0023] BRIEF DESCRIPTION OF DRAWINGS Figure 5 is a sectional view of the molecular sieve tower combination structure.
[0024] BRIEF DESCRIPTION OF DRAWINGS Figure 6 is a schematic view of a molecular sieve barrel structure.
[0025] Reference signs shown in the drawings:
[0026] 1, molecular sieve barrel; 2, end cover; 3, O-shaped ring; 21, bottom air hole; 22, air passage; 23, first side air hole; 24, second side air hole; 25, sealing ring groove; 26, bottom mounting hole; 27, top mounting hole; 28, bolt hole; 29, threaded hole. DETAILED DESCRIPTION
[0027] The utility model is further described in combination with the drawings and specific embodiments. It should be understood that these embodiments are only used for illustrating the utility model and are not used for limiting the scope of the utility model. In addition, it should be understood that after reading the content taught by the utility model, those skilled in the art can make various changes or modifications to the utility model, and these equivalent forms also fall within the scope defined by the present application. Example 1
[0028] The embodiment provides an oxygen generator molecular sieve tower end cover, the end cover is mainly used for ventilation, and can be installed to the upper end and the lower end of the molecular sieve tower, that is, the end cover can be used as the upper end cover and the lower end cover of the molecular sieve tower.
[0029] Reference Figure 1 , Figure 2 and Figure 3As shown, the specific structure of the end cover of the embodiment is as follows: the end cover 2 is in a square structure as a whole, and the upper and lower surfaces and the side surfaces are all flat surfaces to facilitate the installation and assembly of the end cover 2.
[0030] A bottom through hole 21 is arranged on the bottom end surface of the end cover 2, wherein the bottom through hole 21 is used to communicate with the molecular sieve barrel. It should be understood that when the end cover 2 is used as the lower end cover of the molecular sieve tower, the bottom through hole 21 of the end cover 2 is installed upward below the molecular sieve barrel. An air passage 22 is arranged inside the end cover 2, and the air passage 22 forms a first side air outlet 23 and a second side air outlet 24 on the two side end surfaces of the end cover 2, respectively. The first side air outlet 23 is a smooth surface, and a sealing ring groove 25 is arranged at the second side air outlet 24.
[0031] In the above structure of the embodiment, the air passage 22 is in a state of being perpendicular to the bottom through hole 21, and the air passage 22 communicates with the bottom through hole 21, that is, the air passage 22 can communicate with the inside of the molecular sieve barrel through the bottom through hole 21 to make the first side air outlet 23 and the second side air outlet 24 at both ends of the air passage 22 communicate. Through the above structure, when a plurality of molecular sieve towers are assembled, the adjacent molecular sieve towers can be communicated with each other through the end cover 2. That is, the two end covers 2 are connected in abutment, the first side air outlet 23 of the latter end cover 2 is connected in abutment to the second side air outlet 24 of the former end cover 2, so that the interiors of the molecular sieve barrels are communicated with each other. After the sealing ring is installed in the sealing ring groove 25, the sealing effect after connection is ensured. Only the end cover 2 at the most front end is connected with the gas path assembly, and the end cover 2 at the last segment is closed by the blocking plate to complete the closure of the gas path.
[0032] In the embodiment, the end cover structure design mainly considers the assembly function between each other, and therefore corresponding threaded holes 29 and bolt holes 28 are arranged on the two side surfaces of the end cover 2, and the adjacent end covers after abutment are fastened through screws.
[0033] In the embodiment, a plurality of bottom mounting holes 26 are arranged on the bottom end surface of the end cover 2, and a plurality of top mounting holes 27 are arranged on the top end surface of the end cover 2 to facilitate the installation of the end cover. Embodiment 2
[0034] The embodiment provides a molecular sieve tower combined structure using the end cover provided in Embodiment 1. Reference is made to Figs. 1 to 4. Figure 4 , Figure 5 and Figure 6 as shown.
[0035] In the embodiment, the combined structure of the molecular sieve tower includes two molecular sieve tower groups A and B on the left and right, and the number and size of the two molecular sieve groups on the left and right are equal, which meets the requirements of the compressed air in the two groups of molecular sieves for rotating adsorption, desorption and equalization during the operation of the oxygen generator.
[0036] The combined structure of the molecular sieve tower of the embodiment can be quickly assembled according to the actual oxygen production demand, and when the oxygen production demand is large, the number of molecular sieve towers in the A and B molecular sieve tower groups on the left and right can be increased.
[0037] The A and B molecular sieve tower groups of the embodiment each include a plurality of molecular sieve barrels 1, end covers 2 are installed at the upper and lower ends of the molecular sieve barrels 1, the end covers 2 corresponding to adjacent molecular sieve barrels 1 are connected in abutment, and are fastened by screws.
[0038] When the number of molecular sieve towers needs to be increased, the baffle plate of the last group of molecular sieve towers is removed, the side of the upper and lower end covers 2 of the newly added molecular sieve tower provided with an O-ring 3 is aligned with the smooth surface of the upper and lower end covers 2 of the previous molecular sieve tower, the fixing and sealing between the molecular sieve towers are completed by pressing the upper and lower end covers 2 by a bolt, the fixing between the lower end cover 2 and the oxygen generator base is completed by pressing the bolt, and the number of newly added molecular sieve towers depends on the oxygen production size. After the installation and fixing of the molecular sieve towers are completed, the baffle plate removed previously is reinstalled on the upper and lower end covers of the last molecular sieve tower and is fastened and pressed by a bolt to complete the sealing.
[0039] The molecular sieve barrel 1 used by the molecular sieve tower of the embodiment is in a cylindrical shape, the inner wall is circular and smooth, is used for containing molecular sieve, the bottom is a compressed air inlet end, the top is an oxygen outlet end, and the two ends have threaded holes for connecting and fixing with the upper and lower end covers 2. After the gas distribution plate is fixed at the bottom, the molecular sieve is filled, and after the filling of the molecular sieve is completed, a gland, a spring, and the like are installed on the molecular sieve to fix the molecular sieve and prevent the molecular sieve from being blown away by compressed air. The gas distribution plate in the molecular sieve barrel 1 is a thin plate with a plurality of small round holes on the surface, and functions to uniformly pass compressed air through the molecular sieve when the compressed air enters from the bottom of the molecular sieve tower, so that the adsorption of the molecular sieve is more sufficient, and the oxygen production effect is uniform and stable.
[0040] In the above embodiments of the application, the core parts, the molecular sieve tower and the upper and lower end covers 2, can be standardized to save design cost, material cost, and production cost, the core parts, the molecular sieve barrel 1 and the upper and lower end covers 2, can be standardized, different oxygen production demands can be met without changing the size of the molecular sieve tower, but by increasing or decreasing the number of groups of molecular sieve towers to change the oxygen production demand, the design concept is novel, the upper and lower end cover parts are connected and sealed, an air path is formed inside, and each group of molecular sieve towers does not need to be connected by a pipeline, no matter how many groups of molecular sieve towers are provided, only the frontmost molecular sieve tower needs to be connected with a set of pipeline system, the problem of complex equipment structure and large floor area in the prior art is solved, the system has good sealing performance, and is convenient to install.
Claims
1. An oxygen generator molecular sieve tower end cover, characterized in that, The bottom end face of the end cover is provided with a bottom through hole, and the inside of the end cover is provided with an air channel, which is communicated with the bottom through hole, and the air channel forms a first side air vent and a second side air vent on the two side end faces of the end cover respectively, and a sealing ring groove is arranged at the first side air vent or the second side air vent.
2. The oxygen generator molecular sieve tower end cover of claim 1, wherein, The end face of the end cover with the first side air vent is provided with a plurality of threaded holes, and the end face of the end cover with the second side air vent is provided with a plurality of bolt holes, and the threaded holes and the bolt holes are correspondingly arranged.
3. The oxygen generator molecular sieve tower end cover of claim 2, wherein, The axis of the air channel is vertically arranged with the bottom through hole, the first side air vent and the second side air vent are coaxially arranged, and the threaded holes and the corresponding bolt holes are coaxially arranged.
4. The oxygen generator molecular sieve tower end cover of claim 1, wherein, The bottom end face of the end cover is provided with a plurality of bottom mounting holes, and the top end face of the end cover is provided with a plurality of top mounting holes.
5. An oxygen generator molecular sieve tower combination structure comprising a plurality of molecular sieve towers, the molecular sieve tower comprising a molecular sieve barrel, characterized in that, The end cover of any one of claims 1-4 is arranged on the upper and lower ends of the molecular sieve barrel, a sealing ring is arranged in the sealing ring groove of the end cover, and the air channels arranged on the adjacent end covers of the molecular sieve tower are communicated through the first side air vent and the second side air vent.
6. The oxygen generator molecular sieve tower assembly of claim 5, wherein, The end covers of the adjacent molecular sieve towers are fixedly connected through bolts.
7. The oxygen generator molecular sieve tower assembly of claim 5 wherein, The first side air vent or the second side air vent of the end cover of the outermost molecular sieve tower is provided with a baffle plate.
8. The oxygen generator molecular sieve tower assembly of claim 5, wherein, The molecular sieve barrel is cylindrical, the inner wall is circular and smooth, and the two ends of the molecular sieve barrel are provided with threaded holes for mounting the end cover.