Mixed gas purification device

Abstract

The utility model discloses a mixed gas purification device which comprises a purification cylinder, a gas inlet pipe, a gas outlet pipe, a gas outlet pipe, a gas inlet pipe and a gas outlet pipe, wherein a physical drying body for absorbing water vapor and an activated carbon filter body for absorbing oxygen and carbon dioxide are arranged in the purification cylinder; a heat-conducting ceramic square column with a copper pipe through groove formed in the end part is arranged in the heating and purifying cylinder, and a reaction copper pipe is fixedly mounted in the copper pipe through groove; a plurality of carbon molecular sieves for secondarily absorbing oxygen, carbon dioxide and water vapor are arranged in the adsorption purification cylinder. Nitrogen is purified and filtered through the purification cylinder, heated and purified through the heating purification cylinder, adsorbed and purified through the adsorption purification cylinder, and finally high-purity nitrogen is obtained, the three steps are sequentially implemented, the influence of impurity components in the nitrogen on the reaction copper pipe is effectively reduced, and meanwhile, the nitrogen purification effect is improved. The reaction copper pipe is long-pipe-shaped, so that the contact area between the reaction copper pipe and nitrogen is fully increased, and the purification effect is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to nitrogen gas preparation technical field especially relates to a mixed gas purification device. BACKGROUND

[0002] In the prior art, nitrogen is a kind of element formed by nitrogen;Normal temperature and pressure is a kind of colorless and odorless gas. At present, the main way of producing and processing nitrogen gas has air liquefaction cryogenic separation, pressure swing adsorption and membrane separation technology. Nitrogen purification is mainly to remove oxygen in nitrogen to improve the purity of nitrogen.

[0003] Through the retrieval, the patent with china patent application number 202421451262.5 discloses a nitrogen gas purification device, including reaction tank and nitrogen gas purification mechanism in the inner chamber of reaction tank, the top wall of reaction tank is fixedly connected with inlet pipe, and the bottom wall of reaction tank is fixedly connected with outlet pipe, servo motor is horizontally installed on the side wall of reaction tank, fixed rod is respectively embedded and installed on the two sides of reaction tank inner chamber, the inner cavities of two fixed rods are located on the side facing each other, screw rod and limiting rod are respectively arranged in the two fixed rods, the output shaft of servo motor is coaxially connected with screw rod, and the two ends of limiting rod are welded with fixed rod.

[0004] The above patent has the following shortcomings: normal air composition is calculated according to volume percentage: nitrogen (N2) accounts for 78.08%, oxygen (O2) accounts for 20.95%, argon (Ar) accounts for 0.93%, carbon dioxide (CO2) accounts for 0.03%, and there are trace amounts of inert gas;The device utilizes the contact between hot copper and nitrogen mixed gas, so that oxygen combines with copper to generate copper oxide, and the purpose of purifying nitrogen is achieved, but the device is overall sealed, which is not conducive to continuous nitrogen purification work, and at the same time, various ways of producing nitrogen gas will have water vapor, water vapor, oxygen and copper in high temperature state, which may generate basic copper carbonate, which has adverse effect on nitrogen purification. Utility model content

[0005] The utility model aims at solving the shortcomings in the prior art and provides a mixed gas purification device.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0007] A kind of mixed gas purification device, comprising:

[0008] Purification cylinder, its inside is provided with physical drying body for absorbing water vapor and active carbon filter for absorbing oxygen and carbon dioxide;

[0009] The heating purification cylinder is internally provided with a heat-conducting ceramic square column with a copper pipe through slot with a reaction copper pipe fixedly installed in the copper pipe through slot, and a plurality of heating installation slots are formed in the top end of the heat-conducting ceramic square column, and an aluminum frame is fixedly installed in the heating installation slot, and a plurality of heating rods for heating the reaction copper pipe are fixedly installed in the aluminum frame at equal intervals.

[0010] The adsorption purification cylinder is internally provided with a plurality of carbon molecular sieves for secondary absorption of oxygen, carbon dioxide and water vapor.

[0011] The bottom end of the purification cylinder, the heating purification cylinder and the adsorption purification cylinder is provided with a mounting support seat, and a plurality of mounting support seats are fixedly installed on the bottom end of the bearing base, and the top end of the bearing base is fixedly installed with a controller.

[0012] As a further scheme of the utility model, the front end of the purification cylinder is fixedly installed with an end cover one, the front surface of the end cover one is fixedly connected with a mounting cylinder, and the inside of the mounting cylinder is fixedly installed with an air inlet fan.

[0013] As a further scheme of the utility model, the tail end of the purification cylinder is fixedly installed with an end cover two, and the back surface of the end cover two is fixedly connected with a plurality of U-shaped flow tubes one.

[0014] As a further scheme of the utility model, the other end of the flow tube one is fixedly connected with an end cover three, and the end cover three is fixedly installed at the tail end of the heating purification cylinder.

[0015] As a further scheme of the utility model, the front end of the heating purification cylinder is fixedly installed with an end cover four, and the front surface of the end cover four is fixedly connected with a plurality of U-shaped flow tubes two.

[0016] As a further scheme of the utility model, the other end of the flow tube two is fixedly connected with an end cover five, and the end cover five is fixedly installed at the front end of the adsorption purification cylinder.

[0017] As a further scheme of the utility model, the tail end of the adsorption purification cylinder is fixedly installed with an end cover six, and the back surface of the end cover six is fixedly installed with a connecting cylinder.

[0018] As a further scheme of the utility model, the tail end of the connecting cylinder is fixedly installed with a detection cylinder, the outer wall of the detection cylinder is fixedly installed with a concentration monitor, and the tail end of the detection cylinder is fixedly installed with a three-way connecting valve.

[0019] Compared with the prior art, the utility model provides a mixed gas purification device with the following beneficial effects:

[0020] The mixed gas purification device purifies, filters, heats and adsorbs the nitrogen gas through the purification cylinder, the heating purification cylinder and the adsorption purification cylinder, and finally obtains high-purity nitrogen gas, the three steps are sequentially implemented, effectively reducing the influence of impurity components in the nitrogen gas on the reaction copper pipe, and the reaction copper pipe is arranged in a long pipe shape, thereby sufficiently improving the contact area of the reaction copper pipe and the nitrogen gas and improving the purification effect.

[0021] The part not involved in the device is the same as or can be realized by the prior art, and the device has simple structure and convenient operation. DETAILED DESCRIPTION

[0022] Figure 1 The utility model discloses a whole assembly's partial sectional structure schematic diagram Figure 1 ;

[0023] Figure 2 The utility model discloses a whole assembly's partial sectional structure schematic diagram Figure 2 ;

[0024] Figure 3 The utility model discloses a whole assembly's partial sectional structure schematic diagram Figure 1 ;

[0025] Figure 4 The utility model discloses a whole assembly's partial sectional structure schematic diagram Figure 3 The utility model discloses a whole assembly's partial sectional structure schematic diagram

[0026] Figure 5 The utility model discloses a whole assembly's partial sectional structure schematic diagram Figure 2 ;

[0027] Figure 6 The utility model discloses a whole assembly's partial sectional structure schematic diagram Figure 5 The utility model discloses a whole assembly's partial sectional structure schematic diagram

[0028] In the drawing: 1, bearing base; 2, purification cylinder; 3, heating purification cylinder; 4, adsorption purification cylinder; 5, installation support seat; 6, controller; 7, end cover one; 8, installation cylinder; 9, connecting pipe head one; 10, air inlet fan; 11, end cover two; 12, through-flow pipe one; 13, end cover three; 14, end cover four; 15, through-flow pipe two; 16, end cover five; 17, end cover six; 18, connecting cylinder; 19, detection cylinder; 20, concentration monitor; 21, three-way connecting valve; 22, connecting pipe head two; 23, three-way valve fixed seat; 24, installation frame one; 25, physical drying body; 26, installation frame two; 27, activated carbon filter body; 28, temperature insulation protection body; 29, heat-conducting ceramic square column; 30, copper pipe through slot; 31, reaction copper pipe; 32, shunt baffle; 33, heating installation groove; 34, aluminum frame; 35, heating rod; 36, installation frame three; 37, carbon molecular sieve. DETAILED DESCRIPTION

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0030] A mixed gas purification device, such as Figures 1 to 6 As shown, it includes: a purification cylinder 2, a heating purification cylinder 3, and an adsorption purification cylinder 4, which are set at the top of the support base 1. Each of the three is equipped with a mounting support 5 at its bottom. The mounting support 5 is fixedly installed at the top of the support base 1. A controller 6 is fixedly installed at the top of the support base 1 at the tail end of the heating purification cylinder 3.

[0031] Two mounting slots 1 and two mounting slots 2 are respectively opened at both ends of the top of the purification cylinder 2. Mounting slot 1 is close to the front end of the purification cylinder 2, and mounting frame 1 24 is fixedly inserted inside it. A physical drying body 25 for absorbing water vapor is fixedly installed inside the mounting frame 1 24. The physical drying body 25 can be made of reusable materials such as activated alumina to reduce economic costs.

[0032] The second mounting slot is located near the tail end of the purification cylinder 2. A second mounting frame 26 is fixedly inserted inside the second mounting slot 26. An activated carbon filter 27 that absorbs oxygen and carbon dioxide is fixedly installed inside the second mounting frame 26. The activated carbon filter 27 can restore its adsorption capacity after being heated.

[0033] An end cap 7 is fixedly installed at the front end of the purification cylinder 2. An installation cylinder 8 is fixedly connected to the front of the end cap 7. An air intake fan 10 is fixedly installed inside the installation cylinder 8. The air intake fan 10 is controlled by the controller 6 to adjust the air intake speed.

[0034] The front end of the mounting cylinder 8 is fixedly installed with a connecting pipe head 9, which is used to connect to the raw nitrogen supply device (raw nitrogen is nitrogen produced industrially that is mixed with impurities such as oxygen, or air used as a raw material for nitrogen preparation).

[0035] The raw nitrogen gas is purified by passing through purification cylinder 2 to obtain purified nitrogen gas.

[0036] An end cap 2 11 is fixedly installed at the tail end of the purification cylinder 2. Multiple U-shaped flow tubes 1 12 are fixedly connected to the back of the end cap 2 11. An end cap 3 13 is fixedly connected to the other end of the flow tube 1 12. The end cap 3 13 is fixedly installed at the tail end of the heating purification cylinder 3 to facilitate the introduction of purified nitrogen into the interior of the heating purification cylinder 3.

[0037] A heat insulation protection body 28 is fixedly connected to the inner wall of the heating purification cylinder 3. A heat-conducting ceramic square column 29 is fixedly installed inside the heat insulation protection body 28. Multiple rows of copper tube through slots 30 are equidistantly opened at the front end of the heat-conducting ceramic square column 29, and multiple rows of copper tube through slots 30 are equidistantly set in each row.

[0038] A plurality of heating installation grooves 33 are equidistantly formed on the top end of the heat-conducting ceramic square column 29, the heating installation grooves 33 penetrate the heat-conducting ceramic square column 29, and a plurality of through grooves are formed on the top end of the temperature protection body 28 and the heating purification cylinder 3 correspondingly; the plurality of heating installation grooves 33 and the plurality of rows of copper pipe through grooves 30 are arranged at intervals, the number of rows of the copper pipe through grooves 30 is set as n, and the number of the heating installation grooves 33 is set as (n+1).

[0039] The reaction copper pipe 31 is fixedly installed in the copper pipe through groove 30, a plurality of shunt partitions 32 are integrally formed on the inner wall of the reaction copper pipe 31 equidistantly, the shunt partitions 32 equidistantly divide the inner cavity of the reaction copper pipe 31 into a plurality of parts, so that the purified nitrogen gas fully contacts the inner wall of the reaction copper pipe 31.

[0040] The aluminum frame 34 is fixedly installed in the heating installation groove 33, a plurality of heating rods 35 for heating the reaction copper pipe 31 are fixedly installed in the aluminum frame 34 equidistantly, the plurality of heating rods 35 are connected in parallel, and the temperature of the reaction copper pipe 31 is controlled by the controller 6, so that the reaction copper pipe 31 fully combines with oxygen in the purified nitrogen gas to generate copper oxide, the purified nitrogen gas is preliminarily purified, and the purified nitrogen gas is obtained.

[0041] The end cover four 14 is fixedly installed at the front end of the heating purification cylinder 3, the front surface of the end cover four 14 is fixedly connected with a plurality of U-shaped flow pipes two 15, the other end of the flow pipe two 15 is fixedly connected with the end cover five 16, the end cover five 16 is fixedly installed at the front end of the adsorption purification cylinder 4, and the purified nitrogen gas is conveniently introduced into the adsorption purification cylinder 4.

[0042] The installation grooves three are formed at both ends of the top of the adsorption purification cylinder 4, the installation frame three 36 is fixedly installed in the installation groove three, and the carbon molecular sieve 37 for absorbing oxygen, carbon dioxide and water vapor is fixedly installed in the installation frame three 36.

[0043] The end cover six 17 is fixedly installed at the tail end of the adsorption purification cylinder 4, the connecting cylinder 18 is fixedly installed on the back surface of the end cover six 17, the detection cylinder 19 is fixedly installed at the tail end of the connecting cylinder 18, the concentration monitor 20 is fixedly installed on the outer wall of the detection cylinder 19, the concentration of the high-purity nitrogen gas is detected by the concentration monitor 20, and the result is fed back to the controller 6.

[0044] The tail end of the detection cylinder 19 is fixedly installed with a three-way connecting valve 21, two gas outlets of the three-way connecting valve 21 are fixedly installed with connecting pipe heads two 22, one of which is connected with a nitrogen storage device, and the other is connected with a nitrogen-purifying cryogenic separation device for further purification; and the bottom end of the three-way connecting valve 21 is fixedly installed with a three-way valve fixed seat 23, which is fixedly installed on the top end of the bearing base 1.

[0045] Working principle:

[0046] Please refer to Figures 1 to 6 , the device is assembled as shown in the figure;

[0047] Before use, the connecting pipe head one 9 is connected with the original nitrogen supply device, and the two connecting pipe heads two 22 are respectively connected with the nitrogen storage device and the cryogenic separation device; the controller 6 first starts the heating rod 35, the heating rod 35 heats the heat-conducting ceramic square column 29, the reaction copper pipe 31 absorbs heat and is heated to 600 DEG C, which is convenient for reaction with oxygen to generate copper oxide, at the same time, the temperature of the reaction copper pipe 31 is prevented from rising to 800 DEG C or above, so as to avoid the decomposition of copper oxide into cuprous oxide to produce oxygen, and at the same time, the possibility of the reaction copper pipe 31 entering the molten state is reduced; the controller 6 then starts the air inlet fan 10 to quickly introduce the original nitrogen into the inside of the purification cylinder 2, the original nitrogen is first adsorbed by the physical drying body 25 to absorb water vapor, and then is preliminarily adsorbed by the activated carbon filter body 27 to absorb oxygen and carbon dioxide, so as to obtain purified nitrogen; the purified nitrogen enters the inside of the heating purification cylinder 3 through the flow pipe one 12, and enters the inside of the reaction copper pipe 31, which is separated by the shunt partition plate 32, the oxygen in the purified nitrogen reacts with the cylinder at high temperature to generate copper oxide, so as to purify the purified nitrogen and obtain purified nitrogen; the purified nitrogen enters the inside of the adsorption purification cylinder 4 through the flow pipe two 15, and is adsorbed again by the carbon molecular sieve 37 to remove the residual oxygen, water vapor and carbon dioxide in the purified nitrogen, so as to obtain high-purity nitrogen; the high-purity nitrogen enters the inside of the detection cylinder 19, and the concentration is detected by the concentration monitor 20, the detection result is fed back to the controller 6, if the concentration of the high-purity nitrogen meets the production requirement, the controller 6 controls the three-way connecting valve 21 to introduce the high-purity nitrogen into the inside of the nitrogen storage device; otherwise, if the concentration of the high-purity nitrogen does not meet the production requirement, the controller 6 controls the three-way connecting valve 21 to introduce the high-purity nitrogen into the inside of the nitrogen-purifying cryogenic separation device for further purification.

[0048] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A mixed gas purification device characterized by comprising: Include: The purification cylinder (2) is internally provided with physical drying body (25) for absorbing water vapor and activated carbon filter (27) for absorbing oxygen and carbon dioxide; The heating purification cylinder (3) is internally provided with heat-conducting ceramic square column (29) with copper pipe through slot (30) at the end, reaction copper pipe (31) is fixedly installed in the copper pipe through slot (30), and a plurality of heating installation grooves (33) are formed in the top end of the heat-conducting ceramic square column (29), aluminum frame (34) is fixedly installed in the heating installation groove (33), and a plurality of heating rods (35) for heating the reaction copper pipe (31) are fixedly installed in the aluminum frame (34) at equal intervals; The adsorption purification cylinder (4) is internally provided with a plurality of carbon molecular sieves (37) for secondary absorption of oxygen, carbon dioxide and water vapor; The bottom ends of the purification cylinder (2), the heating purification cylinder (3) and the adsorption purification cylinder (4) are provided with mounting support seats (5), and the bottom ends of the mounting support seats (5) are fixedly provided with a bearing base (1), and the top end of the bearing base (1) is fixedly provided with a controller (6).

2. A mixed gas purification device according to claim 1, characterized by: The front end of the purification cylinder (2) is fixedly provided with an end cover one (7), the front surface of the end cover one (7) is fixedly connected with a mounting cylinder (8), and the inside of the mounting cylinder (8) is fixedly provided with an air inlet fan (10).

3. A mixed gas purification device according to claim 1, characterized by: The tail end of the purification cylinder (2) is fixedly provided with an end cover two (11), and the back surface of the end cover two (11) is fixedly connected with a plurality of U-shaped flow tubes one (12).

4. A mixed gas purification device according to claim 3, characterized in that: The other end of the flow tube one (12) is fixedly connected with an end cover three (13), and the end cover three (13) is fixedly installed at the tail end of the heating purification cylinder (3).

5. The mixed gas purification device of claim 1, wherein: The front end of the heating purification cylinder (3) is fixedly provided with an end cover four (14), and the front surface of the end cover four (14) is fixedly connected with a plurality of U-shaped flow tubes two (15).

6. A mixed gas purification device according to claim 5, characterized in that: The other end of the flow tube two (15) is fixedly connected with an end cover five (16), and the end cover five (16) is fixedly installed at the front end of the adsorption purification cylinder (4).

7. The mixed gas purification device of claim 1, wherein: The tail end of the adsorption purification cylinder (4) is fixedly provided with an end cover six (17), and the back surface of the end cover six (17) is fixedly provided with a connecting cylinder (18).

8. A mixed gas purification device according to claim 7, characterized in that: The tail end of the connecting cylinder (18) is fixedly provided with a detection cylinder (19), the outer wall of the detection cylinder (19) is fixedly provided with a concentration monitor (20), and the tail end of the detection cylinder (19) is fixedly provided with a three-way connecting valve (21).

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