A nitrogen purification deoxygenation tank
By increasing the contact time between the nitrogen and hydrogen mixture and the deoxidant in the nitrogen purification deoxidation tank, using the S-type airflow channel and the swing plate structure, the existing nitrogen purification deoxidation methods are solved, and the low-cost and high-efficiency nitrogen purification deoxidation effect is achieved.
Patent Information
- Application Number
- CN202421414865.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-20
- Publication Date
- 2025-04-01
- Estimated Expiration
- 2034-06-20
AI Technical Summary
The existing nitrogen purification and deoxidation methods are costly, inconvenient to operate and poor deoxidation effect, making it difficult to meet the demand for high-purity nitrogen during nitrogen production.
A nitrogen purification deoxygenation tank is designed to increase the flow stroke of the nitrogen and hydrogen mixture and slow down its speed, extend the contact time between the nitrogen and hydrogen mixture and the deoxidant, and use the S-type airflow channel and swing plate structure set in the deoxidation bottle to improve the deoxygenation effect.
The nitrogen generator is purified and deoxygenated at low cost and high efficiency, which improves the purity of nitrogen, reduces operating costs, and facilitates the replacement of deoxygenation agent.
Smart Images
Figure CN222694432U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of nitrogen purification and deoxygenation, in particular to a nitrogen purification and deoxygenation tank. Background Art
[0002] Deoxygenation and purification treatment is required in the nitrogen production process. The significance of nitrogen deoxygenation is to improve the purity of nitrogen so that it can better play the role of protective atmosphere, dry gas source, etc., to avoid oxidation of products during the production process and affect the quality. Hydrodeoxygenation is a common method for nitrogen deoxygenation.
[0003] Hydrodeoxygenation is to mix nitrogen with a small amount of hydrogen, pass it through a reactor equipped with a metal palladium catalyst, and make the residual oxygen react with hydrogen to generate water vapor, and then cool and dry it to obtain high-purity nitrogen. The chemical formula is: 2H 2 +O 2 =2H 2 O+heat.
[0004] In practical applications, choosing a suitable nitrogen purification and deoxygenation method requires considering many factors, such as nitrogen purity requirements, processing volume, cost, and ease of operation.
[0005] The utility model designs a deoxidation tank with low cost, good deoxidation effect and convenient replacement of deoxidizer to solve the above problems. Utility Model Content
[0006] Based on this, it is necessary to provide a nitrogen purification and deoxygenation tank to address the problems existing in the current nitrogen generator purification and deoxygenation. By increasing the flow distance of the nitrogen-hydrogen mixture and slowing down the flow speed of the nitrogen-hydrogen mixture, the contact time between the nitrogen-hydrogen mixture and the deoxidizer is increased to achieve low-cost and high-efficiency purification and deoxygenation of the nitrogen generator.
[0007] The above purpose is achieved through the following technical solutions:
[0008] A nitrogen purification deoxygenation tank, comprising:
[0009] The deoxygenation device can deoxygenate the input filtered gas; it comprises a deoxygenation bottle, in which a plurality of baffle shells are evenly fixedly installed from top to bottom, and the upper and lower ends of the baffle shells are both made of breathable materials; a deoxidizer carrier is detachably installed in the baffle shell, and the deoxidizer carrier contains a deoxidizer; the baffle shell located at the uppermost side divides the deoxygenation bottle into upper and lower parts, and the remaining baffle shells are evenly distributed up and down in the deoxygenation bottle and form an S-shaped airflow channel in the deoxygenation bottle.
[0010] The dehydration device comprises a dehydration bottle in which a dehydrating agent is added.
[0011] The deoxygenation bottle and the dehydration bottle are connected via a connecting tube, and one end of the connecting tube connected to the dehydration bottle penetrates into the dehydration bottle and is located in the dehydrating agent.
[0012] In one embodiment, an air inlet pipe is installed on the bottom side of the deoxygenation bottle, and a shunt pipe is fixedly installed on one end of the air inlet pipe inserted into the deoxygenation bottle. The shunt pipe is located on the lower side of the lowermost deoxygenator carrier.
[0013] In one embodiment, the diverter tube is provided with evenly distributed air holes.
[0014] In one embodiment, a collecting shell is fixedly installed on the upper side of the deoxygenation bottle, a gas supply pipe is fixedly installed on the collecting shell, and the lower end of the gas supply pipe penetrates into the deoxygenation bottle and a nitrogen collecting pipe is fixedly installed therein; one end of the connecting tube connected to the deoxygenation bottle is connected to the upper side of the collecting shell.
[0015] In one of the embodiments, the nitrogen collecting tube is provided with evenly distributed pores.
[0016] In one of the embodiments, a sealing baffle is detachably mounted on the outer side of each baffle shell via bolts.
[0017] In one of the embodiments, a swing plate is swingably installed at each corner of the S-shaped airflow channel formed by the blocking shell in the deoxygenation bottle, and a leaf spring is installed between the swing plate and the deoxygenation bottle.
[0018] In one of the embodiments, a first switch is installed between the collecting shell and the connecting pipe.
[0019] In one embodiment, a liquid discharge port is installed below the dehydration bottle, and a second switch is installed on the liquid discharge port; a liquid filling port is installed on the side wall of the dehydration bottle, and a third switch is installed at the liquid filling port.
[0020] In one embodiment, the dehydration bottle has an air outlet on its upper side, and a fourth switch is installed at the air outlet.
[0021] The beneficial effect of the utility model is to increase the contact time between the nitrogen-hydrogen mixture and the deoxidizer by increasing the flow stroke of the nitrogen-hydrogen mixture and slowing down the flow speed of the nitrogen-hydrogen mixture, so as to achieve low-cost and high-efficiency purification and deoxidation of the nitrogen generator; the utility model arranges an S-shaped airflow channel in the deoxidation bottle, and the nitrogen-hydrogen mixture flows upward through the deoxidizer after entering the deoxidation bottle, and flows around the S-shaped airflow channel, thereby increasing the contact time between the nitrogen-hydrogen mixture and the deoxidizer, and ensuring the deoxidation effect; in addition, in the utility model, a swing plate is arranged at the corner of the S-shaped airflow channel, and the swing amplitude of the swing plate is related to the gas pressure in the lower airflow channel. Such a design can slow down the flow of the nitrogen-hydrogen mixture, and can effectively increase the contact time between the nitrogen-hydrogen mixture and the deoxidizer, thereby improving the deoxidation effect. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] Figure 1 It is a schematic diagram of the overall appearance of the components.
[0023] Figure 2 It is a schematic diagram of the overall component distribution.
[0024] Figure 3 It is a schematic diagram of the structure of the deoxidation device.
[0025] Figure 4 This is a schematic diagram of the shunt pipe installation.
[0026] Figure 5 It is a gas flow diagram.
[0027] Names of the symbols in the figure: 1. deoxygenation device; 101. air inlet pipe; 102. deoxygenation bottle; 104. nitrogen collection pipe; 105. air delivery pipe; 106. blocking shell; 107. sealing baffle; 108. deoxidizer carrier; 109. diverter pipe; 110. swing plate; 111. leaf spring; 2. collecting shell; 3. connecting pipe; 301. first switch; 4. dehydration device; 401. dehydration bottle; 402. liquid discharge port; 403. second switch; 404. third switch; 405. liquid filling port; 406. gas outlet; 407. fourth switch. DETAILED DESCRIPTION
[0028] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below through embodiments and in combination with the accompanying drawings. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.
[0029] The serial numbers assigned to the components herein, such as "first", "second", etc., are only used to distinguish the objects described and do not have any order or technical meaning. The "connection" and "coupling" mentioned in this application, unless otherwise specified, include direct and indirect connections (couplings). In the description of the present utility model, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present utility model.
[0030] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.
[0031] like Figure 1 -like Figure 5 As shown, a nitrogen purification deoxygenation tank includes a deoxygenation device 1, which can deoxygenate the input filtered gas; Figure 3 As shown, it includes a deoxygenation bottle 102, in which a plurality of blocking shells 106 are evenly fixedly installed from top to bottom, and the upper and lower ends of the blocking shells 106 are both made of air-permeable materials; a deoxidizer carrier 108 is detachably installed in the blocking shell 106, and the deoxidizer carrier 108 contains a deoxidizer; the blocking shell 106 located at the uppermost side divides the deoxygenation bottle 102 into upper and lower parts, and the remaining blocking shells 106 are evenly distributed up and down in the deoxygenation bottle 102 and form an S-shaped airflow channel in the deoxygenation bottle 102; as shown Figure 2 As shown, the dehydration device 4 includes a dehydration bottle 401, in which a dehydrating agent is added; the deoxygenation bottle 102 and the dehydration bottle 401 are connected by a connecting tube 3, and one end of the connecting tube 3 connected to the dehydration bottle 401 penetrates into the dehydration bottle 401 and is located in the dehydrating agent.
[0032] When the nitrogen-hydrogen mixture is input from the lower side of the deoxidation bottle 102, the nitrogen-hydrogen mixture will flow around the S-shaped airflow channel while flowing upward through the deoxidizer. After the nitrogen-hydrogen mixture contacts the deoxidizer, it will react under the action of the deoxidizer, and the water vapor formed by the reaction will flow upward together with the nitrogen, and finally flow into the dehydration bottle 401 along the connecting pipe 3 for dehydration and cooling treatment. The dehydrated and cooled nitrogen will flow out of the dehydration bottle 401 for the next drying treatment.
[0033] The utility model sets an S-shaped airflow channel in the deoxidation bottle 102. After entering the deoxidation bottle 102, the nitrogen-hydrogen mixture flows upward through the deoxidizer and flows around the S-shaped airflow channel, thereby increasing the contact time between the nitrogen-hydrogen mixture and the deoxidizer and ensuring the deoxidation effect.
[0034] In a further embodiment, Figure 3As shown, an air inlet pipe 101 is installed on the bottom side of the deoxygenation bottle 102 , and a shunt pipe 109 is fixedly installed on one end of the air inlet pipe 101 inserted into the deoxygenation bottle 102 . The shunt pipe 109 is located on the lower side of the deoxidizer carrier 108 at the lowermost side.
[0035] In a further embodiment, Figure 3 As shown, the shunt pipe 109 is provided with evenly distributed pores. The nitrogen-hydrogen mixed gas enters from the air inlet pipe 101 and flows out from the shunt pipe 109. The pores provided on the shunt pipe 109 are used to ensure that the nitrogen-hydrogen mixed gas can be evenly dispersed into the deoxygenation bottle 102.
[0036] In a further embodiment, Figure 1 , 2 As shown in FIG. 3 , a collecting shell 2 is fixedly installed on the upper side of the deoxygenation bottle 102, and a gas supply pipe 105 is fixedly installed on the collecting shell 2. The lower end of the gas supply pipe 105 penetrates into the deoxygenation bottle 102 and a nitrogen collecting pipe 104 is fixedly installed therein; one end of the connecting pipe 3 connected to the deoxygenation bottle 102 is connected to the upper side of the collecting shell 2.
[0037] In a further embodiment, Figure 3 As shown, the nitrogen collecting pipe 104 is provided with evenly distributed pores. The function of the pores is to increase the collection effect of nitrogen and water vapor.
[0038] In a further embodiment, Figure 2 , 3 As shown, a sealing baffle 107 is detachably mounted on the outer side of each blocking shell 106 by bolts. Such a design can conveniently replace the deoxidizer.
[0039] In a further embodiment, Figure 2 , 3 As shown, a swing plate 110 is swingably installed at each corner of the S-shaped airflow channel formed by the blocking shell 106 in the deoxygenation bottle 102 , and a leaf spring 111 is installed between the swing plate 110 and the deoxygenation bottle 102 .
[0040] In the utility model, a swing plate 110 is arranged at the corner of the S-shaped airflow channel. The swing amplitude of the swing plate 110 is related to the gas pressure in the lower airflow channel. Such a design can slow down the flow of the nitrogen-hydrogen mixture, effectively increase the contact time between the nitrogen-hydrogen mixture and the deoxidizer, and improve the deoxidation effect.
[0041] In a further embodiment, Figure 3 As shown, a first switch 301 is installed between the collecting shell 2 and the connecting pipe 3.
[0042] In a further embodiment, Figure 2As shown, a liquid discharge port 402 is installed below the dehydration bottle 401 , and a second switch 403 is installed on the liquid discharge port 402 ; a liquid addition port 405 is installed on the side wall of the dehydration bottle 401 , and a third switch 404 is installed at the liquid addition port 405 .
[0043] In a further embodiment, Figure 2 As shown, the upper side of the dehydration bottle 401 has an air outlet 406 , and a fourth switch 407 is installed at the air outlet 406 .
[0044] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0045] The above-mentioned embodiments only express several implementation methods of the utility model, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the utility model. It should be pointed out that, for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, and these all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model shall be subject to the attached claims.
Claims
1. A nitrogen purification deoxygenation tank, characterized in that: include: Deoxygenation device, which can deoxygenate the input filtered gas; It includes a deoxygenation bottle, in which a plurality of baffle shells are evenly fixedly installed from top to bottom, and the upper and lower ends of the baffle shells are both made of air-permeable materials; a deoxygenator carrier is detachably installed in the baffle shell, and the deoxygenator carrier contains a deoxygenator; the baffle shell located at the uppermost side divides the deoxygenation bottle into upper and lower parts, and the remaining baffle shells are evenly distributed in the deoxygenation bottle and form an S-shaped airflow channel in the deoxygenation bottle; A dehydration device, the dehydration device comprises a dehydration bottle, a dehydrating agent is added into the dehydration bottle; The deoxygenation bottle and the dehydration bottle are connected via a connecting tube, and one end of the connecting tube connected to the dehydration bottle penetrates into the dehydration bottle and is located in the dehydrating agent.
2. A nitrogen purification deoxygenation tank according to claim 1, characterized in that: An air inlet pipe is installed on the bottom side of the deoxygenation bottle, and a shunt pipe is fixedly installed on one end of the air inlet pipe inserted into the deoxygenation bottle. The shunt pipe is located at the lower side of the lowermost deoxygenator carrier.
3. A nitrogen purification deoxygenation tank according to claim 2, characterized in that: The shunt pipe is provided with evenly distributed air holes.
4. A nitrogen purification deoxygenation tank according to claim 1, characterized in that: A collecting shell is fixedly installed on the upper side of the deoxygenation bottle, a gas pipe is fixedly installed on the collecting shell, and the lower end of the gas pipe penetrates into the deoxygenation bottle and a nitrogen collecting pipe is fixedly installed; one end of the connecting tube connected to the deoxygenation bottle is connected to the upper side of the collecting shell.
5. A nitrogen purification deoxygenation tank according to claim 4, characterized in that: The nitrogen collecting tube is provided with evenly distributed pores.
6. A nitrogen purification deoxygenation tank according to claim 1, characterized in that: A sealing baffle is detachably mounted on the outer side of each baffle shell via bolts.
7. A nitrogen purification deoxygenation tank according to claim 1, characterized in that: A swing plate is swingably installed at each corner of the S-shaped airflow channel formed by the blocking shell in the deoxygenation bottle, and a leaf spring is installed between the swing plate and the deoxygenation bottle.
8. A nitrogen purification deoxygenation tank according to claim 4, characterized in that: A first switch is installed between the collecting shell and the connecting pipe.
9. A nitrogen purification deoxygenation tank according to claim 1, characterized in that: A liquid discharge port is installed below the dehydration bottle, and a second switch is installed on the liquid discharge port; a liquid adding port is installed on the side wall of the dehydration bottle, and a third switch is installed at the liquid adding port.
10. A nitrogen purification deoxygenation tank according to claim 1, characterized in that: The upper side of the dehydration bottle is provided with an air outlet, and a fourth switch is installed at the air outlet.