A multi-module oxygen generator

Abstract

The utility model belongs to the technical field of oxygen production, specifically relates to a multi -module oxygen generator, the multi -module oxygen generator includes air source and preprocessing module, two or more than two oxygen production modules that are arranged in parallel, oxygen storage and output module, the air inlet pipeline of oxygen production module is connected with oxygen production air inlet pipeline and is arranged in parallel, the oxygen production pipeline of oxygen production module is connected with oxygen production collection pipeline and is arranged in parallel, oxygen production air inlet pipeline connects the air outlet pipe of air source and preprocessing module, and oxygen production collection pipeline connects oxygen storage and output module. The utility model is simple and convenient to install, and pipeline transformation is convenient, can satisfy the flexible oxygen demand, and will not produce the design redundancy of oxygen consumption.

Description

Technical Field

[0001] This utility model belongs to the field of oxygen generation technology, specifically relating to a multi-module oxygen generator. Background Technology

[0002] Conventional molecular sieve oxygen generation systems used in hospitals are typically 20m³. 3 The medical molecular sieve oxygen generation system was modified to a 40m³ system when the hospital needed to expand its capacity. 3 The medical molecular sieve oxygen generation system requires a redesign of a 40m³ unit. 3 Molecular sieve oxygen generation systems may require reconnecting pipelines, reassembling, etc., or adding two 20m³ units to the existing machine. 3 Connecting machines together requires a significant amount of time for assembly, piping modifications, reconnecting control systems, and so on.

[0003] Traditional capacity expansion methods have the following problems: 1. Long production cycle and large workload. Traditional expansion methods are usually non-modular designs. When adding one or more oxygen production units that are exactly the same as the original system, a series of complex projects are required, such as foundation construction, pipe welding, electrical wiring, and control system integration, which cannot achieve plug-and-play functionality. After the new system is installed, it needs to be jointly debugged with the old system, which is a cumbersome and time-consuming process.

[0004] 2. Slow response to market / user needs. The lengthy production, installation, and commissioning cycles prevent the company from quickly seizing market opportunities or meeting urgent user demands.

[0005] 3. It can easily lead to resource waste. To meet future peak demand, users may be forced to invest in equipment far exceeding current needs, resulting in equipment operating at low loads most of the time and tying up large amounts of capital. Repeated construction requires more space and raw materials.

[0006] Therefore, there is an urgent need for a modular molecular sieve oxygen generation system to solve the technical problem of difficulty in expansion. Utility Model Content

[0007] The purpose of this invention is to overcome the shortcomings of existing technologies and propose a multi-module oxygen generator. The multi-module oxygen generator is simple and convenient to install, easy to modify pipelines, and can meet flexible oxygen demand needs without creating design redundancy in oxygen consumption.

[0008] To achieve the above objectives, the technical solution of this utility model is as follows: A multi-module oxygen generator, comprising an air source and pretreatment module, two or more oxygen production modules arranged in parallel, and an oxygen storage and production module; The oxygen generation module's air intake pipeline is connected in parallel with the oxygen production air intake pipeline; the oxygen production pipeline of the oxygen generation module is connected in parallel with the oxygen production collection pipeline. The oxygen-generating inlet pipe is connected to the air source and the air outlet pipe of the pretreatment module, and the oxygen-generating collection pipe is connected to the oxygen storage and production module.

[0009] Preferably, the oxygen generating module further includes: First adsorption tower, second adsorption tower, vent valve; The first pneumatic valve has its first connection end connected to the inlet of the first adsorption tower and its second connection end connected to the air inlet pipeline. The second pneumatic valve has its first connection end connected to the air inlet pipe and its second connection end connected to the inlet of the second adsorption tower. The third pneumatic valve has its first connection end connected to the first connection end of the first pneumatic valve and the inlet of the first adsorption tower, and its second connection end connected to the vent valve. The fourth pneumatic valve has its first connection end connected to the vent valve, and its second connection end connected to the second connection end of the second pneumatic valve and the inlet of the second adsorption tower. The fifth pneumatic valve has its first connection end connected to the outlet of the first adsorption tower and its second connection end connected to the inlet of the oxygen production pipeline. The sixth pneumatic valve has its first connection end connected to the inlet of the oxygen production pipeline and its second connection end connected to the outlet of the second adsorption tower. The seventh pneumatic valve has its first connection end connected to the first connection end of the first pneumatic valve and the inlet of the first adsorption tower, and its second connection end connected to the outlet of the second adsorption tower. The eighth pneumatic valve has its first connection end connected to the outlet of the first adsorption tower, and its second connection end connected to the second connection end of the second pneumatic valve and the inlet of the second adsorption tower. The ninth pneumatic valve has its first connection end connected to the outlet of the first adsorption tower and its second connection end connected to the inlet of the oxygen production pipeline. The tenth pneumatic valve has its first connection end connected to the inlet of the oxygen production pipeline and its second connection end connected to the outlet of the second adsorption tower.

[0010] Preferably, the air source and pretreatment module includes an air compressor, an air-water separator, a refrigerated dryer, a first filter, an air buffer tank, a second filter, and a pneumatic valve controlling the air source, connected in sequence. The outlet pipe of the second filter is connected to the oxygen production inlet pipe and the pneumatic valve to control the air source; The pneumatic valve control air source provides pneumatic control air to the pneumatic valve of the oxygen generator.

[0011] Preferably, the oxygen storage and production module includes an oxygen storage tank and a pressure reducing valve; The oxygen storage tank's inlet pipe is connected to the oxygen production and collection pipe, and a pressure reducing valve is installed on the oxygen storage tank's outlet pipe.

[0012] Preferably, the oxygen-generating inlet pipe is a three-way pipe, with the middle passage connected to the inlet pipe of the oxygen-generating module and the two end passages connected to the oxygen-generating inlet pipes of other oxygen-generating modules.

[0013] Preferably, the oxygen generation collection pipeline is a three-way pipeline, with the middle passage connecting to the oxygen generation pipeline of the oxygen generation module, and the two end passages connecting to the oxygen generation collection pipelines of other oxygen generation modules.

[0014] Preferably, a throttling valve is installed on the connecting pipe between the oxygen generation collection pipe and the oxygen generation pipeline.

[0015] Preferably, the oxygen production pipeline is a DN25 stainless steel pipe, and the oxygen production collection pipeline is a DN40 stainless steel pipe.

[0016] Preferably, the throttle valve is a G1 two-piece internal thread ball valve.

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows: This modular main unit offers quick delivery and allows for rapid mass production in factories, providing advantages in both cost and price. When increased production capacity is needed, oxygen-generating modules can be added simply like building blocks, significantly reducing installation and commissioning time. Standardized interfaces are used for pipe and line connections, minimizing construction work. The number of modules can be flexibly adjusted according to changes in user needs, enabling smooth expansion or reduction of production capacity. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the composition principle of the multi-module oxygen generator of this utility model (taking two oxygen generating modules as an example). Figure 2 This is a schematic diagram of the composition of the gas source and pretreatment module; Figure 3 This is a schematic diagram of the oxygen generation module. Figure 4 This is a schematic diagram of the composition principle of the oxygen storage and production module; Figure 5 This is a front view of the oxygen generation module; Figure 6 This is a rear view of the oxygen generation module; Figure label: 1. Gas source and pretreatment module; 1-1. Air compressor; 1-2. Air-water separator; 1-3. Refrigerated dryer; 1-4. First filter; 1-5. Air buffer tank; 1-6. Second filter; 1-7. Pneumatic valve controls the air supply; 2. Oxygen generation module; 2-1 Oxygen production inlet pipeline; 2-2 Inlet pipeline; 2-3 Oxygen production pipeline; 2-4 Oxygen production collection pipeline; 2-5 First adsorption tower; 2-6 Second adsorption tower; 2-7 Throttling valve; 2-8 Venting valve; 2-9 First pneumatic valve; 2-10 Second pneumatic valve; 2-11 Third pneumatic valve; 2-12 Fourth pneumatic valve; 2-13 Fifth pneumatic valve; 2-14 Sixth pneumatic valve; 2-15 Seventh pneumatic valve; 2-16 Eighth pneumatic valve; 2-17 Ninth pneumatic valve; 2-18 Tenth pneumatic valve; 3. Oxygen storage and production module; 3-1. Oxygen storage tank; 3-2. Pressure reducing valve. Detailed Implementation

[0019] The technical solution of this utility model will be described in detail below with reference to the accompanying drawings and embodiments.

[0020] Example 1 like Figure 1 As shown, a multi-module oxygen generator includes a gas source and pretreatment module 1, two or more oxygen generation modules 2 arranged in parallel, and an oxygen storage and production module 3. The oxygen generation module 2's air inlet pipe 2-2 is connected in parallel with the oxygen production air inlet pipe 2-1; the oxygen production pipe 2-3 of the oxygen generation module 2 is connected in parallel with the oxygen production collection pipe 2-4. The oxygen-generating inlet pipe 2-1 is connected to the air source and the air outlet pipe of the pretreatment module 1, and the oxygen-generating collection pipe 2-4 is connected to the oxygen storage and production module 3.

[0021] like Figure 3 as well as Figure 5-6 As shown, the oxygen generation module 2 further includes: First adsorption tower 2-5, second adsorption tower 2-6, vent valve 2-8; The first pneumatic valve 2-9 has its first connection end connected to the inlet of the first adsorption tower 2-5, and its second connection end connected to the air inlet pipe 2-2. The second pneumatic valve 2-10 has its first connection end connected to the air inlet pipe 2-2 and its second connection end connected to the inlet of the second adsorption tower 2-6. The third pneumatic valve 2-11 has its first connection end connected to the first connection end of the first pneumatic valve 2-9 and the inlet of the first adsorption tower 2-5, and its second connection end connected to the vent valve 2-8. The fourth pneumatic valve 2-12 has its first connection end connected to the vent valve 2-8, and its second connection end connected to the second connection end of the second pneumatic valve 2-10 and the inlet of the second adsorption tower 2-6. The fifth pneumatic valve 2-13 has its first connection end connected to the outlet of the first adsorption tower 2-5 and its second connection end connected to the inlet of the oxygen production pipeline 2-3. The sixth pneumatic valve 2-14 has its first connection end connected to the inlet of the oxygen production pipeline 2-3 and its second connection end connected to the outlet of the second adsorption tower 2-6. The seventh pneumatic valve 2-15 has its first connection end connected to the first connection end of the first pneumatic valve 2-9 and the inlet of the first adsorption tower 2-5, and its second connection end connected to the outlet of the second adsorption tower 2-6. The eighth pneumatic valve 2-16 has its first connection end connected to the outlet of the first adsorption tower 2-5, and its second connection end connected to the second connection end of the second pneumatic valve 2-10 and the inlet of the second adsorption tower 2-6. The ninth pneumatic valve 2-17 has its first connection end connected to the outlet of the first adsorption tower 2-5 and its second connection end connected to the inlet of the oxygen production pipeline 2-3. The tenth pneumatic valve 2-18 has its first connection end connected to the inlet of the oxygen production pipeline 2-3, and its second connection end connected to the outlet of the second adsorption tower 2-6.

[0022] like Figure 2 As shown, the air source and pretreatment module 1 includes an air compressor 1-1, an air-water separator 1-2, a refrigerated dryer 1-3, a first filter 1-4, an air buffer tank 1-5, a second filter 1-6, and a pneumatic valve-controlled air source 1-7 connected in sequence. The outlet pipe of the second filter 1-6 is connected to the oxygen production inlet pipe 2-1 and the pneumatic valve to control the air source 1-7. Air compressor 1-1 is used to provide compressed air for the entire oxygen generator as an air source component.

[0023] Air-water separator 1-2 is used to separate most of the moisture contained in compressed air.

[0024] Refrigerated air dryers 1-3, also known as freeze dryers, are used to reduce the temperature of compressed air and remove some of the moisture from the air.

[0025] The first filter 1-4 and the second filter 1-6 are used to remove oil, water, impurities, odors, etc. from the air, or to remove odors and dust from the generated oxygen.

[0026] Air buffer tank 1-55 serves as a buffer tank for storing air, enabling the oxygen generator to obtain a stable supply of compressed air.

[0027] Pneumatic valve control air source 1-7 provides pneumatic control air to the pneumatic valves of the oxygen generator.

[0028] like Figure 4As shown, the oxygen storage and production module 3 includes an oxygen storage tank 3-1 and a pressure reducing valve 3-2; The oxygen storage tank 3-1 has its inlet pipe connected to the oxygen production and collection pipe 2-4, and a pressure reducing valve 3-2 is installed on the outlet pipe of the oxygen storage tank 3-1.

[0029] In the oxygen storage and production module 3, flow meters and other devices can be installed as needed. The connection of these devices can be done in accordance with the conventional connection methods in the field.

[0030] The oxygen-generating inlet pipe 2-1 is a three-way pipe, with the middle passage connecting to the inlet pipe 2-2 of the oxygen-generating module 2, and the two end passages connecting to the oxygen-generating inlet pipe 2-1 of other oxygen-generating modules 2.

[0031] The oxygen generation collection pipeline 2-4 is a three-way pipeline, with the middle passage connecting to the oxygen generation pipeline 2-3 of the oxygen generation module, and the two end passages connecting to the oxygen generation collection pipeline 2-4 of other oxygen generation modules.

[0032] A throttling valve 2-7 is installed on the connecting pipe between the oxygen generation collection pipe 2-4 and the oxygen generation pipe 2-3.

[0033] The oxygen production pipeline is made of DN25 stainless steel, and the oxygen collection pipeline is made of DN40 stainless steel.

[0034] The throttle valve is a G1 two-piece internal thread ball valve. The throttle valve is used to prevent excessive output flow, which could lead to substandard oxygen concentration.

[0035] This embodiment has two oxygen generating modules, but multiple oxygen generating modules (such as four) can be added as needed, all connected in parallel.

[0036] The pipeline connection of this invention is simple and the structure can be adjusted at any time. All pneumatic valves of the oxygen generating modules are controlled by the same set of solenoid valves, ensuring that the oxygen generation sequence of all modules is synchronized.

[0037] When oxygen is produced in the oxygen generation module, it is discharged through oxygen generation pipes 2-3. Since multiple oxygen generation pipes 2-3 converge into a single main pipe – the oxygen generation collection pipe 2-4, oxygen generation pipes 2-3 use thinner stainless steel pipes, while the oxygen generation collection pipe 2-4 uses thicker pipes. To better control the oxygen production, a throttling valve 2-7 is installed between oxygen generation pipes 2-3 and the oxygen generation collection pipe 2-4 to prevent excessive oxygen flow and unqualified oxygen concentration. Taking a 20 cubic meter main unit as an example, the oxygen generation pipe uses DN25 stainless steel pipe, the collection pipe uses DN40 stainless steel pipe, and the throttling valve is a G1 two-piece internal thread ball valve.

[0038] In this embodiment, all pneumatic valves in multiple modules are controlled by the same set of solenoid valves, ensuring that each module performs the same oxygen production action. A large aluminum tank is used as the control air source for the pneumatic valves to provide control air to the solenoid valves. The oxygen production inlet pipeline stores pressure at 0.6 MPa, ensuring sufficient pressure when multiple modules use this solenoid valve as the control air source.

[0039] The gas source and pretreatment module of this invention generates clean compressed air, which enters each module's oxygen generator through the intake pipeline. Each module's oxygen generator, controlled by the same set of solenoid valves, performs the same oxygen generation steps, completing pressure equalization, intake, oxygen production, and cleaning. Afterward, all air enters the oxygen production collection pipeline, and then flows into the oxygen storage and production module. The control of the solenoid valves during the oxygen production process of this invention's oxygen generation module follows conventional control methods in the field.

[0040] For any content not described in detail in this utility model, conventional technical knowledge in the field can be used.

[0041] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to the embodiments, those skilled in the art should understand that modifications or equivalent substitutions to the technical solution of this utility model do not depart from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A multi-module oxygen generator, characterized in that, The multi-module oxygen generator includes a gas source and pretreatment module, two or more oxygen production modules arranged in parallel, and an oxygen storage and production module. The oxygen generation module's air intake pipeline is connected in parallel with the oxygen production air intake pipeline; the oxygen production pipeline of the oxygen generation module is connected in parallel with the oxygen production collection pipeline. The oxygen-generating inlet pipe is connected to the air source and the air outlet pipe of the pretreatment module, and the oxygen-generating collection pipe is connected to the oxygen storage and production module.

2. The multi-module oxygen generator according to claim 1, characterized in that, The oxygen generation module also includes: First adsorption tower, second adsorption tower, vent valve; The first pneumatic valve has its first connection end connected to the inlet of the first adsorption tower and its second connection end connected to the air inlet pipeline. The second pneumatic valve has its first connection end connected to the air inlet pipe and its second connection end connected to the inlet of the second adsorption tower. The third pneumatic valve has its first connection end connected to the first connection end of the first pneumatic valve and the inlet of the first adsorption tower, and its second connection end connected to the vent valve. The fourth pneumatic valve has its first connection end connected to the vent valve, and its second connection end connected to the second connection end of the second pneumatic valve and the inlet of the second adsorption tower. The fifth pneumatic valve has its first connection end connected to the outlet of the first adsorption tower and its second connection end connected to the inlet of the oxygen production pipeline. The sixth pneumatic valve has its first connection end connected to the inlet of the oxygen production pipeline and its second connection end connected to the outlet of the second adsorption tower. The seventh pneumatic valve has its first connection end connected to the first connection end of the first pneumatic valve and the inlet of the first adsorption tower, and its second connection end connected to the outlet of the second adsorption tower. The eighth pneumatic valve has its first connection end connected to the outlet of the first adsorption tower, and its second connection end connected to the second connection end of the second pneumatic valve and the inlet of the second adsorption tower. The ninth pneumatic valve has its first connection end connected to the outlet of the first adsorption tower and its second connection end connected to the inlet of the oxygen production pipeline. The tenth pneumatic valve has its first connection end connected to the inlet of the oxygen production pipeline and its second connection end connected to the outlet of the second adsorption tower.

3. The multi-module oxygen generator according to claim 1, characterized in that, The air source and pretreatment module includes an air compressor, an air-water separator, a refrigerated dryer, a first filter, an air buffer tank, a second filter, and a pneumatic valve controlling the air source, connected in sequence. The outlet pipe of the second filter is connected to the oxygen production inlet pipe and the pneumatic valve to control the air source; The pneumatic valve control air source provides pneumatic control air to the pneumatic valve of the oxygen generator.

4. The multi-module oxygen generator according to claim 1, characterized in that, The oxygen storage and production module includes an oxygen storage tank and a pressure reducing valve; The oxygen storage tank's inlet pipe is connected to the oxygen production and collection pipe, and a pressure reducing valve is installed on the oxygen storage tank's outlet pipe.

5. The multi-module oxygen generator according to claim 1, characterized in that, The oxygen production inlet pipe is a three-way pipe, with the middle passage connecting to the inlet pipe of the oxygen production module and the two end passages connecting to the oxygen production inlet pipes of other oxygen production modules.

6. The multi-module oxygen generator according to claim 1, characterized in that, The oxygen generation collection pipeline is a three-way pipeline, with the middle passage connecting to the oxygen generation pipeline of the oxygen generation module, and the two end passages connecting to the oxygen generation collection pipelines of other oxygen generation modules.

7. The multi-module oxygen generator according to claim 1, characterized in that, A throttling valve is installed on the connecting pipe between the oxygen collection pipeline and the oxygen production pipeline.

8. The multi-module oxygen generator according to claim 1, characterized in that, The diameter of the oxygen-generating pipeline is smaller than the diameter of the oxygen-generating collection pipeline.

9. The multi-module oxygen generator according to claim 8, characterized in that, The oxygen production pipeline is made of DN25 stainless steel, and the oxygen collection pipeline is made of DN40 stainless steel.

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