Adsorption tower of adsorption type nitrogen making machine and nitrogen making machine

Abstract

The utility model discloses an adsorption tower of an adsorption type nitrogen making machine and the nitrogen making machine, and relates to the technical field of nitrogen making machines. The upper tower body is provided with a gas outlet; the lower tower body is provided with an air inlet, and the upper tower body and the lower tower body are matched with each other to form an accommodating space for accommodating a molecular sieve; and the at least one middle tower body is arranged between the upper tower body and the lower tower body and is used for changing the volume of the accommodating space so as to adjust the nitrogen generation amount of the adsorption tower. On the premise that the air-nitrogen ratio is not changed, the nitrogen making machine can be flexibly adjusted according to the change of the demand quantity.

Description

Technical Field

[0001] The utility model relates to the technical field of nitrogen generators, in particular to an adsorption tower of an adsorption nitrogen generator and a nitrogen generator. Background Art

[0002] A nitrogen generator is a device that uses air as raw material and uses physical methods to separate oxygen and nitrogen to obtain nitrogen. According to different classification methods, industrial nitrogen generators can be divided into three types, namely, cryogenic air separation, molecular sieve air separation, and membrane air separation. Nitrogen is widely used in medical surgery, electronic product manufacturing, and fertilizer manufacturing. Existing pressure swing adsorption nitrogen generators mostly use carbon molecular sieves for screening and filtration. The carbon molecular sieve is placed in an adsorption tower for adsorption and filtration to produce nitrogen. In the production process of nitrogen, the ratio of compressed air to supplied nitrogen (air-nitrogen ratio) becomes an important indicator of the performance of the nitrogen generator. The higher the air-nitrogen ratio, the more air is needed to produce nitrogen per unit volume, which means higher energy consumption.

[0003] However, as the production capacity of existing factories changes, the demand for nitrogen is also constantly changing. When the demand for nitrogen decreases, the volume of the existing nitrogen generator remains fixed, which makes the air-nitrogen ratio higher, resulting in higher energy consumption.

[0004] Therefore, how to make the nitrogen generator flexibly adjust according to changes in demand without changing the air-nitrogen ratio has become a technical problem that needs to be solved urgently. Utility Model Content

[0005] The main purpose of the utility model is to provide an adsorption tower and a nitrogen generator of an adsorption nitrogen generator, aiming at enabling the nitrogen generator to be flexibly adjusted according to changes in demand without changing the air-nitrogen ratio.

[0006] In order to achieve the above object, the utility model proposes an adsorption tower of an adsorption nitrogen generator, comprising:

[0007] The upper tower body has an air outlet;

[0008] A lower tower body with an air inlet, wherein the upper tower body and the lower tower body cooperate with each other to form a containing space for accommodating the molecular sieve; and

[0009] At least one intermediate tower body is disposed between the upper tower body and the lower tower body and is used to change the volume of the accommodating space to adjust the nitrogen production amount of the adsorption tower.

[0010] In one embodiment of the present application, the upper tower body is provided with a pressing device capable of pressing the molecular sieve in the accommodating space.

[0011] In one embodiment of the present application, the clamping device is located at the top center of the upper tower body, and the air outlet is located at one side of the clamping device.

[0012] In one embodiment of the present application, the air inlet is located at the center of the bottom of the lower tower body.

[0013] In one embodiment of the present application, the lower tower body and the middle tower body, and the middle tower body and the upper tower body are fastened with bolts.

[0014] In one embodiment of the present application, the lower tower body is further provided with a venting device for releasing the oxygen-enriched molecular sieve.

[0015] The present application also discloses a nitrogen generator, comprising:

[0016] A bracket, to which an adsorption tower of the adsorption nitrogen generator as described in any one of the above items is connected;

[0017] A first tube body connected to the gas outlet of the upper tower body, the first tube body being connected to a pneumatic valve for opening or closing the first tube body; and

[0018] The second tube body is connected to the air inlet of the lower tower body, and the second tube body is connected to a pneumatic valve for opening or closing the second tube body.

[0019] With the above technical solution, the upper and lower tower bodies constructed of high-quality metal materials provide good pressure resistance, support capacity and wear resistance, ensuring the stability and durability of the entire adsorption tower. The design of the middle tower body increases the adjustability of the equipment, allowing the operator to adjust the nitrogen production according to production needs, improving the adaptability and flexibility of the equipment. The joints between the components are easy to disassemble and repair, reducing maintenance costs, and enabling quick response and resolution of possible problems. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention is described in detail below with reference to specific embodiments and accompanying drawings, wherein:

[0021] Figure 1 This is a schematic structural diagram of the first embodiment of the utility model;

[0022] 10. upper tower body; 20. lower tower body; 30. middle tower body; 40. pressing device; 50. venting device; 60. second pipe body; 70. first pipe body. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model is described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the following specific embodiments are only used to explain the utility model and do not constitute a limitation on the utility model.

[0024] like Figure 1 As shown, in order to achieve the above purpose, the utility model proposes an adsorption tower of an adsorption nitrogen generator, comprising:

[0025] The upper tower body 10 has an air outlet;

[0026] The lower tower body 20 has an air inlet, and the upper tower body 10 and the lower tower body 20 cooperate with each other to form a containing space for accommodating the molecular sieve; and

[0027] At least one intermediate tower body 30 is disposed between the upper tower body 10 and the lower tower body 20 and is used to change the volume of the accommodating space to adjust the nitrogen production amount of the adsorption tower.

[0028] Specifically, the upper tower body 10 is a structural member located at the top of the adsorption tower. One or more gas outlets are provided on the upper tower body 10 for outputting the nitrogen obtained after the adsorption process. The upper tower body 10 is usually made of high-strength metal materials, such as aluminum alloy or alloy steel, to ensure the firmness and durability of its structure.

[0029] The lower tower body 20 is located at the bottom of the tower body and has an air inlet for introducing compressed air to be separated. Like the upper tower body 10, the lower tower body 20 is also made of a metal material with high support capacity and wear resistance to ensure the stability and long-term use of the equipment foundation. In the present application, the upper tower body 10 and the lower tower body 20 are made of the same material.

[0030] The middle tower body 30 is located between the upper tower body 10 and the lower tower body 20, and is used to adjust the size of the accommodation space as needed, thereby adjusting the nitrogen production capacity and efficiency of the adsorption tower. The material of the middle tower body 30 can be selected according to the needs of working conditions and cost-effectiveness, and may use the same material as the upper and lower tower bodies 20, or may use other materials that meet the requirements of strength, temperature resistance, chemical stability, etc.

[0031] The upper tower body 10 and the lower tower body 20 are connected to each other through a tightly fitting design, forming a sealed and structurally stable storage space, which is used to accommodate molecular sieves for adsorbing nitrogen in compressed air.

[0032] The intermediate tower body 30 is installed between the upper tower body 10 and the lower tower body 20 by means of threaded connection, flange fitting or other mechanical interfaces, and its number can be increased or decreased according to actual needs to adjust the volume of the adsorption tower.

[0033] When the number of intermediate tower bodies 30 is one, the installation order of the adsorption tower is: the lower tower body 20 and the intermediate tower body 30 are connected by a flange, and the side of the intermediate tower body 30 away from the lower tower body 20 is connected to the upper tower body 10 by a flange, thereby completing the assembly of the entire adsorption tower.

[0034] When the number of the intermediate tower bodies 30 is two or more, two are taken as an example: the two intermediate tower bodies 30 are respectively the first intermediate tower and the second intermediate tower, the lower tower body 20 is connected to the first end of the first intermediate tower, the second end of the first intermediate tower is connected to the first end of the second intermediate tower, and the second end of the second intermediate tower is connected to the upper tower body 10, thereby completing the assembly of the entire adsorption tower.

[0035] By adopting the above technical solution, the upper tower body 10 and the lower tower body 20 constructed of high-quality metal materials provide good pressure resistance, support capacity and wear resistance, ensuring the stability and durability of the entire adsorption tower. The design of the middle tower body 30 increases the adjustability of the equipment, allowing the operator to adjust the nitrogen production amount according to production needs, improving the adaptability and flexibility of the equipment. The joint method between the components facilitates disassembly and maintenance, reduces maintenance costs, and can quickly respond to and solve possible problems.

[0036] In one embodiment of the present application, the upper tower body 10 is provided with a pressing device 40 which can press the molecular sieve in the accommodating space.

[0037] Specifically, in the adsorption nitrogen generator, the clamping device 40 is used to ensure that the molecular sieve remains stable inside the accommodation space, avoiding physical displacement during adsorption and desorption, thereby maintaining efficiency and extending service life. The clamping device 40 in the present application can be a spring pressure plate, a spiral clamping device 40, a hydraulic or pneumatic clamping device 40, etc.

[0038] When the pressing device 40 is a spring pressure plate, the spring pressure plate is arranged at the top of the upper tower body 10 and is fixed by bolts and a connecting plate of the upper tower body 10 , and the spring directly applies pressure to the surface of the molecular sieve.

[0039] The spring pressure plate is simple in structure and low in cost. The elastic pressure can adapt to the slight volume change of the molecular sieve due to long-term use, maintain continuous compression of the molecular sieve, and effectively extend the service life of the molecular sieve.

[0040] When the pressing device 40 is a spiral pressing device 40 , the spiral pressing device 40 connects the pressing plate to the top of the upper tower body 10 through a screw rod, and the operator can adjust the pressing force by rotating the screw rod.

[0041] The spiral pressing device 40 is used, and has an adjustable pressing force, so that the operator can adjust the pressing force according to the actual situation of the molecular sieve, thereby ensuring uniform distribution of pressure, improving nitrogen production efficiency and stability of equipment operation.

[0042] When the clamping device 40 is a hydraulic or pneumatic clamping device 40 , it is connected to the frame at the top of the upper tower body 10 via a hydraulic cylinder or an air cylinder, and the clamping force is generated by a hydraulic pump or an air pump.

[0043] The hydraulic or pneumatic clamping device 40 is used to apply a large and stable clamping force, which is suitable for large nitrogen generators. The operation flexibility is high, the clamping force can be remotely controlled, and the adaptability is strong, which is very suitable for applications where the clamping state needs to be frequently adjusted.

[0044] In an embodiment of the present application, the pressing device 40 is located at the top center of the upper tower body 10 , and the air outlet is located at one side of the pressing device 40 .

[0045] By adopting the above technical solution, placing the pressing device 40 in the center of the top can ensure that the pressing force on the molecular sieve is more evenly distributed in the entire accommodating space. This uniform pressing effect helps to reduce the movement and wear of the molecular sieve, extend its service life, and maintain adsorption efficiency. Setting the air outlet on one side of the pressing device 40 helps to calibrate the flow direction of nitrogen during the nitrogen production process and avoid the air flow directly impacting the pressing device 40.

[0046] In one embodiment of the present application, the air inlet is located at the center of the bottom of the lower tower body 20 .

[0047] By adopting the above technical solution, by introducing air at the center of the bottom, it can ensure that the air is evenly distributed throughout the tower body, providing a better adsorption effect. It helps to improve the extraction efficiency of nitrogen, thereby increasing production benefits.

[0048] In one embodiment of the present application, the lower tower body 20 and the middle tower body 30 and the middle tower body 30 and the upper tower body 10 are fastened with bolts.

[0049] With the above technical solution, bolted connection can provide a stable joint, ensuring reliable connection between the various parts of the tower during operation, and avoiding loosening of components due to vibration or pressure changes. At the same time, the installation and disassembly process of bolted connection is simple, which is convenient for equipment assembly at the installation site and subsequent maintenance work.

[0050] In one embodiment of the present application, the lower tower body 20 is further provided with a venting device 50 for releasing the oxygen-enriched molecular sieve.

[0051] By adopting the above technical solution, the venting device 50 can quickly release the oxygen-rich gas adsorbed in the molecular sieve after the adsorption process is completed, preparing for the next cycle of gas adsorption, thereby improving the working efficiency of adsorption and regeneration.

[0052] The present application also discloses a nitrogen generator, comprising:

[0053] A bracket, to which an adsorption tower of the adsorption nitrogen generator as described in any one of the above items is connected;

[0054] a first tube body 70 connected to the gas outlet of the upper tower body 10 , wherein the first tube body 70 is connected to a pneumatic valve for opening or closing the first tube body 70 ; and

[0055] The second tube body 60 is connected to the air inlet of the lower tower body 20 , and a pneumatic valve for opening or closing the second tube body 60 is connected to the second tube body 60 .

[0056] Specifically, the bracket is a structural frame used to fix and support the adsorption tower in the adsorption nitrogen generator. It is designed to bear the weight of the adsorption tower and ensure the overall stability. The bracket is made of metal or other high-strength, corrosion-resistant materials to adapt to different environmental conditions.

[0057] The adsorption tower is the main equipment for gas separation. It is filled with molecular sieves or other adsorption materials, which can adsorb other components in the air except nitrogen, thereby generating high-purity nitrogen. The adsorption tower is usually composed of a pressure-resistant cylindrical container to adapt to the treatment of high-pressure gas.

[0058] The first pipe body 70 is a pipe connected to the gas outlet of the upper tower body 10, and is used to guide the nitrogen generated by the nitrogen generator to be output from the gas outlet of the upper tower body 10. The first pipe body 70 has sufficient strength and sealing performance to ensure that the nitrogen will not leak during transportation.

[0059] The second tube body 60 is similar to the first tube body 70, and is connected to the air inlet of the lower tower body 20 to transport the air to be separated to the lower tower body 20. The second tube body 60 also needs to have good strength and sealing ability.

[0060] Pneumatic valves are used to control the flow of gas in the pipe body. They can be opened or closed remotely to control the timing of gas entering and leaving the adsorption tower. Pneumatic valves have the characteristics of fast response and high reliability, and are suitable for automated control environments.

[0061] The bracket serves as the foundation of the entire equipment structure, fixing and supporting the adsorption tower. The first tube body 70 is installed at the gas outlet of the upper tower body 10, and is provided with a pneumatic valve to control the output of the gas. The second tube body 60 is connected to the gas inlet of the lower tower body 20, and is also provided with a pneumatic valve for opening and closing the tube body.

[0062] The above technical solution ensures the stability of the adsorption tower during the nitrogen production process through a solid bracket, ensuring the safety of the operation. The use of pneumatic valves facilitates automatic control and improves the efficiency and convenience of nitrogen production.

[0063] The above description is only a preferred embodiment of the utility model, and does not limit the patent scope of the utility model. All equivalent structural changes made by using the contents of the utility model specification and drawings under the utility model concept, or directly / indirectly used in other related technical fields are included in the patent protection scope of the utility model.

Claims

1. An adsorption tower of an adsorption nitrogen generator, characterized in that: include: The upper tower body has an air outlet; The lower tower body has an air inlet, and the upper tower body and the lower tower body cooperate with each other to form a containing space for accommodating the molecular sieve; as well as At least one intermediate tower body is disposed between the upper tower body and the lower tower body and is used to change the volume of the accommodating space to adjust the nitrogen production amount of the adsorption tower.

2. The adsorption tower of the adsorption nitrogen generator according to claim 1, characterized in that: The upper tower body is provided with a pressing device which can press the molecular sieve in the accommodating space.

3. The adsorption tower of the adsorption nitrogen generator according to claim 2, characterized in that: The pressing device is located at the top center of the upper tower body, and the air outlet is located at one side of the pressing device.

4. The adsorption tower of the adsorption nitrogen generator according to claim 1, characterized in that: The air inlet is located at the center of the bottom of the lower tower body.

5. The adsorption tower of the adsorption nitrogen generator according to claim 1, characterized in that: The lower tower body and the middle tower body, and the middle tower body and the upper tower body are fastened and connected by bolts.

6. The adsorption tower of the adsorption nitrogen generator according to claim 1, characterized in that: The lower tower body is also provided with a venting device for releasing the oxygen-enriched molecular sieve.

7. A nitrogen generator, characterized in that: include: A bracket, to which an adsorption tower of the adsorption nitrogen generator according to any one of claims 1 to 6 is connected; A first tube body, connected to the gas outlet of the upper tower body, the first tube body being connected to a pneumatic valve for opening or closing the first tube body; as well as The second tube body is connected to the air inlet of the lower tower body, and the second tube body is connected to a pneumatic valve for opening or closing the second tube body.

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