Adsorption tower for producing oxygen and nitrogen

Abstract

The utility model discloses an adsorption tower for oxygen and nitrogen production, which comprises two adsorption tower bodies, sealing covers are arranged above the two adsorption tower bodies, the outer surfaces of the two adsorption tower bodies are fixedly connected with threaded seats, the outer surfaces of the two sealing covers are fixedly connected with threaded connection covers, and the threaded connection covers are fixedly connected with the threaded connection covers. The outer surfaces of the two threaded connection covers are in threaded connection with the inner walls of the two threaded seats respectively, a zeolite molecular sieve and a carbon molecular sieve are installed on the inner walls of the two adsorption tower bodies respectively, a gas inlet connector is arranged below the two adsorption tower bodies, the rear end of the gas inlet connector is fixedly communicated with a communicating pipe, and the communicating pipe is communicated with a gas outlet of the two adsorption tower bodies. The two ends, away from the gas inlet connector, of the communicating pipe penetrate through the adsorption tower body and extend into the adsorption tower body. According to the utility model, the zeolite molecular sieve and the carbon molecular sieve can be respectively mounted through the two adsorption tower bodies, and oxygen and nitrogen can be respectively produced without being communicated with two sets of production equipment, so that the equipment cost during oxygen and nitrogen production is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of oxygen production and nitrogen production, especially an adsorption tower for oxygen production and nitrogen production. BACKGROUND

[0002] Oxygen and nitrogen are main components of air, and play a key role in many fields such as life activities, industrial production, scientific research, etc. Oxygen is a kind of gas with relatively active chemical properties, has oxidizing property, and can react with many substances. Nitrogen is a colorless and odorless gas, is difficult to dissolve in water, and has a slightly smaller density than air.

[0003] At present, in the process of oxygen production and nitrogen production, zeolite molecular sieve adsorption tower and carbon molecular sieve adsorption tower need to be used respectively, and nitrogen or oxygen can be adsorbed respectively. Therefore, in the process of oxygen production and nitrogen production, the zeolite molecular sieve adsorption tower and the carbon molecular sieve adsorption tower need to be connected with two sets of production equipment, thereby increasing the equipment cost during oxygen production and nitrogen production. Therefore, we propose an adsorption tower for oxygen production and nitrogen production to solve the above problems. UTILITY MODEL CONTENT

[0004] The utility model aims at providing an adsorption tower for oxygen production and nitrogen production to solve the problems in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0006] An adsorption tower for oxygen production and nitrogen production, comprising two adsorption tower bodies, a sealing cover is arranged above each of the two adsorption tower bodies, a threaded seat is fixedly connected to the outer surface of each of the two adsorption tower bodies, a threaded connecting cover is fixedly connected to the outer surface of each of the two sealing covers, the outer surface of each of the two threaded connecting covers is threadedly connected with the inner wall of each of the two threaded seats, a zeolite molecular sieve and a carbon molecular sieve are respectively installed on the inner wall of each of the two adsorption tower bodies, a gas inlet joint is arranged below the two adsorption tower bodies, a communication pipe is fixedly and continuously communicated with the rear end of the gas inlet joint, the two ends of the communication pipe away from the gas inlet joint penetrate through the adsorption tower body and extend into the interior of the adsorption tower body, an exhaust disc is fixedly and continuously communicated with the two ends of the communication pipe away from the gas inlet joint, the two exhaust discs are respectively located below the zeolite molecular sieve and the carbon molecular sieve, and two electromagnetic valves are fixedly and continuously communicated with the outer surface of the communication pipe.

[0007] In further embodiments, the inner ring of each of the two adsorption tower bodies is fixedly connected with a limiting ring, and the bottom surface of the zeolite molecular sieve and the bottom surface of the carbon molecular sieve are respectively in contact with the upper surface of each of the two limiting rings.

[0008] In further embodiments, the inner bottom wall of each of the two threaded seats is provided with an annular sealing gasket, and the bottom end of each of the two threaded connecting covers is in contact with the upper surface of each of the two annular sealing gaskets.

[0009] In further embodiments, the upper surface of each of the two sealing covers is fixedly connected with an air outlet pipe, and the top end of each of the two air outlet pipes is fixedly connected with an air outlet joint.

[0010] In further embodiments, the side face of each of the two adsorption tower bodies that are close to each other is fixedly connected with a connecting block, and the front face of the connecting block is fixedly installed with a controller.

[0011] In further embodiments, the bottom face of each of the two adsorption tower bodies is fixedly connected with a plurality of support legs, and the outer surface of each of the two sealing covers is fixedly connected with a rotating plate.

[0012] Compared with the prior art, the present application has the following advantages:

[0013] The two adsorption tower bodies can be used to install zeolite molecular sieve and carbon molecular sieve respectively, and can be connected with the air compressor simultaneously through the cooperation of the air inlet joint, the communication pipe and the two electromagnetic valves, and the corresponding electromagnetic valve can be opened according to the demand for oxygen production or nitrogen production, the carbon molecular sieve can be used to preferentially adsorb impurities such as oxygen, carbon dioxide and water vapor, nitrogen gas can flow out as unadsorbed gas, the zeolite molecular sieve can be used to have strong adsorption capacity for nitrogen gas, oxygen gas can flow out as product gas, and oxygen production and nitrogen production can be performed simultaneously, the two sets of production equipment do not need to be connected, and the equipment cost during oxygen production and nitrogen production is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a front view three-dimensional structural schematic diagram of the adsorption tower for oxygen production and nitrogen production.

[0015] Figure 2 It is a front view three-dimensional structural schematic diagram of the adsorption tower for oxygen production and nitrogen production.

[0016] Figure 3 It is a front view sectional view of the adsorption tower for oxygen production and nitrogen production.

[0017] Figure 4 It is a front view three-dimensional structural schematic diagram of the sealing cover of the adsorption tower for oxygen production and nitrogen production.

[0018] In the drawings: 1, adsorption tower body; 2, sealing cover; 3, threaded connection cover; 4, threaded seat; 5, carbon molecular sieve; 6, zeolite molecular sieve; 7, limiting ring; 8, exhaust disc; 9, communication pipe; 10, electromagnetic valve; 11, air inlet joint; 12, support leg; 13, rotating plate; 14, connecting block; 15, controller; 16, air outlet pipe; 17, air outlet joint; 18, annular sealing gasket. DETAILED DESCRIPTION

[0019] In the description of the utility model, it is understood that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first", "second" and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features limited by "first", "second" and the like can explicitly or implicitly include one or more features. In the description of the utility model, the meaning of "a plurality of" is two or more, unless otherwise specified.

[0020] 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. Obviously, the described embodiments are only a part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0021] Please refer to Figures 1-4 In the utility model, an adsorption tower for oxygen and nitrogen production, including two adsorption tower body 1, two adsorption tower body 1 The upper portion is equipped with sealing cover 2, the outer surface of two adsorption tower body 1 It is fixedly connected with screw seat 4, the outer surface of two sealing cover 2 It is fixedly connected with screw thread connection cover 3, the outer surface of two screw thread connection cover 3 It is respectively connected with the inner wall of two screw seat 4 with screw thread, the inner wall of two adsorption tower body 1 It is respectively installed with zeolite molecular sieve 6 and carbon molecular sieve 5, two adsorption tower body 1 The lower portion is commonly provided with gas inlet joint 11, the rear end of gas inlet joint 11 It is fixedly communicated with the communication pipe 9, the two ends of communication pipe 9 away from gas inlet joint 11 All penetrate adsorption tower body 1 And extend to the inside of adsorption tower body 1, the two ends of communication pipe 9 away from gas inlet joint 11 It is fixedly communicated with exhaust disc 8, two exhaust disc 8 It is located below zeolite molecular sieve 6 and carbon molecular sieve 5, the outer surface of communication pipe 9 It is fixedly communicated with two solenoid valves 10, by the setting of carbon molecular sieve 5, can preferentially adsorb oxygen, carbon dioxide and water vapor and other impurities, can make nitrogen as the gas that is not adsorbed and flows out, using the setting of zeolite molecular sieve 6, there will be strong adsorption capacity to nitrogen, can make oxygen as product gas and flow out, in turn can simultaneously carry out oxygen and nitrogen production work.

[0022] In further embodiments, the inner ring of the two adsorption tower bodies 1 are fixedly connected with a limiting ring 7, the bottom surface of the zeolite molecular sieve 6 and the bottom surface of the carbon molecular sieve 5 are in contact with the upper surface of the two limiting rings 7 respectively, the inner bottom wall of the two threaded seats 4 are provided with an annular sealing pad 18, the bottom end of the two threaded connection covers 3 are in contact with the upper surface of the two annular sealing pads 18 respectively, through the setting of the two limiting rings 7, the zeolite molecular sieve 6 and the carbon molecular sieve 5 can be installed and limited respectively, and through the annular sealing pad 18, the sealing cover 2 and the threaded seat 4 can be sealed, thereby improving the sealing effect when the two are connected.

[0023] In further embodiments, the upper surface of the two sealing covers 2 are fixedly connected with an air outlet pipe 16, the top end of the two air outlet pipes 16 are fixedly connected with an air outlet joint 17, the side face of the two adsorption tower bodies 1 close to each other are fixedly connected with a connecting block 14, the front face of the connecting block 14 is fixedly installed with a controller 15, the bottom surface of the two adsorption tower bodies 1 are fixedly connected with a plurality of supporting legs 12, and the outer surface of the two sealing covers 2 are fixedly connected with a rotating plate 13, through the setting of the air outlet pipe 16 and the air outlet joint 17, the oxygen and nitrogen storage tanks outside can be communicated with, thereby facilitating the collection, through the setting of the connecting block 14, the controller 15 can be installed, and through the setting of the controller 15, the two electromagnetic valves 10 can be controlled.

[0024] The working principle of the utility model is: first, the air inlet joint 11 is communicated with the air compressor, then according to the oxygen or nitrogen demand, the right electromagnetic valve 10 or the left electromagnetic valve 10 is opened, the compressed air can be discharged in the adsorption tower body 1 through the communication pipe 9 and the exhaust disc 8 under a certain pressure, the carbon molecular sieve 5 preferentially adsorbs oxygen, carbon dioxide and water vapor and other impurities, nitrogen gas flows out as unadsorbed gas, and the zeolite molecular sieve 6 has strong adsorption capacity for nitrogen, so that oxygen flows out as product gas, and then oxygen and nitrogen can be produced simultaneously.

[0025] It is apparent for those skilled in the art that the utility model is not limited to the details of the above-mentioned exemplary embodiments, and can be realized in other specific forms without departing from the spirit or basic characteristics of the utility model. Therefore, no matter from which point, the embodiments should be regarded as exemplary and non-restrictive, the scope of the utility model is defined by the appended claims instead of the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims should be included in the utility model. Any figure mark in the claims should not be regarded as limiting the involved claims.

[0026] Furthermore, it should be understood that although the specification is described in terms of embodiments, not every embodiment includes every feature or implementation described herein. The specification can include implicit combinations of explicitly mentioned features and / or implicit combinations of implicitly mentioned features. Such combinations are also expressly included within the scope of the specification and an embodiment.

Claims

1. An adsorption tower for oxygen and nitrogen production, characterized in that: The system includes two adsorption towers (1), each with a sealing cap (2) on top. Threaded seats (4) are fixedly connected to the outer surfaces of both adsorption towers (1), and threaded connecting covers (3) are fixedly connected to the outer surfaces of both sealing caps (2). The outer surfaces of the two threaded connecting covers (3) are threadedly connected to the inner walls of the two threaded seats (4). Zeolite molecular sieves (6) and carbon molecular sieves (5) are respectively installed on the inner walls of the two adsorption towers (1). Below the two adsorption towers (1)... A common air inlet connector (11) is provided. The rear end of the air inlet connector (11) is fixedly connected to a connecting pipe (9). Both ends of the connecting pipe (9) away from the air inlet connector (11) penetrate the adsorption tower body (1) and extend into the interior of the adsorption tower body (1). Both ends of the connecting pipe (9) away from the air inlet connector (11) are fixedly connected to exhaust plates (8). The two exhaust plates (8) are located below the zeolite molecular sieve (6) and the carbon molecular sieve (5), respectively. Two solenoid valves (10) are fixedly connected to the outer surface of the connecting pipe (9).

2. The adsorption tower for oxygen and nitrogen production according to claim 1, characterized in that: The inner rings of the two adsorption towers (1) are fixedly connected with limiting rings (7), and the bottom surfaces of the zeolite molecular sieve (6) and the carbon molecular sieve (5) are in contact with the upper surfaces of the two limiting rings (7).

3. An adsorption tower for oxygen and nitrogen production according to claim 1, characterized in that: The inner bottom walls of the two threaded seats (4) are provided with annular sealing gaskets (18), and the bottom ends of the two threaded connecting covers (3) are in contact with the upper surfaces of the two annular sealing gaskets (18).

4. An adsorption tower for oxygen and nitrogen production according to claim 1, characterized in that: The upper surfaces of the two sealing caps (2) are fixedly connected to vent pipes (16), and the top ends of the two vent pipes (16) are fixedly connected to vent connectors (17).

5. An adsorption tower for oxygen and nitrogen production according to claim 1, characterized in that: The two adsorption towers (1) are fixedly connected to each other on one side by a connecting block (14), and a controller (15) is fixedly installed on the front of the connecting block (14).

6. An adsorption tower for oxygen and nitrogen production according to claim 1, characterized in that: Multiple support legs (12) are fixedly connected to the bottom surface of both adsorption towers (1), and rotating plates (13) are fixedly connected to the outer surface of both sealing caps (2).

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