Nitrogen emptying device suitable for small-sized VPSA (Vacuum Pressure Swing Adsorption) oxygen generation system
By using a combination of aluminum wire filler and buffer plate in the nitrogen venting device of the small VPSA oxygen production system, the problem of large internal impact and serious vibration of the sound silencer during nitrogen venting is solved, and better sound silence and noise reduction effect and cost reduction are achieved.
Patent Information
- Application Number
- CN202421937762.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-12
- Publication Date
- 2025-04-29
- Estimated Expiration
- 2034-08-12
AI Technical Summary
When the existing small VPSA oxygen-making system is vented, the airflow directly enters the silencer through the silencer tower, resulting in large internal impacts and serious vibrations of the silencer, poor noise reduction effect, and high cost.
By filling the container with aluminum wire filler and buffering the airflow in combination with the first buffer plate and the second buffer plate, the airflow speed is slowed down and the impact force on the silencer is reduced, thereby reducing the vibration of the silencer and improving the noise reduction effect.
It effectively reduces the impact force of airflow on the inside of the silencer, reduces the vibration of the silencer, improves the noise reduction effect, and reduces the cost. It is suitable for small VPSA oxygen production systems.
Smart Images
Figure CN222811411U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of nitrogen technical venting, in particular to a nitrogen venting device suitable for a small VPSA oxygen production system. Background Art
[0002] Small VPSA oxygen production system is a miniaturized oxygen production device based on vacuum pressure swing adsorption technology. This system is mainly used to separate oxygen from air and is suitable for occasions that require on-site oxygen production or small and medium-scale oxygen supply, such as medical institutions, laboratories, small industrial applications, aquaculture, food preservation, etc.
[0003] The existing small VPSA oxygen production system uses silencers to reduce the noise generated when the nitrogen in the oxygen production system is vented. However, when the nitrogen is vented, the airflow will directly enter the silencer through the silencer tower, which has a relatively large impact on the inside of the silencer, easily damaging the internal structure of the silencer, causing large vibrations, and poor silencing and noise reduction effects, which is quite inconvenient.
[0004] Therefore, it is necessary to design a nitrogen venting device suitable for small VPSA oxygen production systems that can significantly reduce the impact of airflow on the inside of the muffler through aluminum wire filling, reduce the vibration of the muffler, and achieve better silencing and noise reduction effects, and has a low cost. Utility Model Content
[0005] In order to overcome the disadvantages of the existing small VPSA oxygen production system, noise reduction is performed by using a silencer, but when the nitrogen is vented, the airflow will directly enter the silencer through the silencer tower, which has a relatively large impact on the inside of the silencer, easily destroys the internal structure of the silencer, causes large vibration, and has a poor silencing and noise reduction effect, which is quite inconvenient. The utility model provides a nitrogen venting device suitable for a small VPSA oxygen production system, which can greatly reduce the impact of the airflow on the inside of the silencer through aluminum wire filler, reduce the vibration of the silencer, and achieve better silencing and noise reduction effects, and has a lower cost.
[0006] A nitrogen venting device suitable for a small VPSA oxygen production system comprises a base, a reaction tube, a container, a vent pipe, an aluminum wire filler and a silencer assembly. The upper side of the base is connected to the reaction tube, the upper part of the reaction tube is connected to the container, the lower part of the reaction tube is connected to the vent pipe, the interior of the container is filled with aluminum wire filler, and a silencer assembly is provided on the connecting piece.
[0007] Furthermore, the base is provided with an anti-skid pad.
[0008] Furthermore, the shell is made of carbon steel.
[0009] Furthermore, the silencer assembly also includes a connecting piece, a shell, a silencer and a fixing plate. The upper side of the container is connected to the connecting piece, the upper side of the connecting piece is connected to the shell, the inside of the shell is connected to two upper and lower fixing plates, and the silencer is connected between the fixing plates.
[0010] Furthermore, it also includes a first buffer plate and a second buffer plate shell. The first buffer plate is connected to the inside of the reaction tube. The second buffer plate is connected to the inside of the reaction tube. The second buffer plate is located at the lower side of the first buffer plate.
[0011] Furthermore, the first buffer plate and the second buffer plate are installed in reverse.
[0012] The beneficial effects of the utility model are as follows: the utility model reduces the air flow velocity by the first buffer plate and the second buffer plate, and then further slows down the air flow by the aluminum wire filler in the container, so that the impact force of the air flow on the inside of the silencer can be greatly reduced by the aluminum wire filler, and the vibration of the silencer can be reduced, so that the sound absorbing and noise reduction effect is better and the cost is lower. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.
[0014] Figure 2 It is a cross-sectional schematic diagram of the first three-dimensional structure of the utility model.
[0015] Figure 3 It is a cross-sectional schematic diagram of the second three-dimensional structure of the utility model.
[0016] In the above figures: 1: base, 2: reaction tube, 3: container, 4: first buffer plate, 5: second buffer plate, 6: ventilation pipe, 7: aluminum wire filler, 8: connecting part, 9: shell, 10: silencer, 11: fixing plate. DETAILED DESCRIPTION
[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0018] A nitrogen venting device suitable for small VPSA oxygen production systems, such as Figure 1 and Figure 2As shown, it includes a base 1, a reaction tube 2, a container 3, a first buffer plate 4, a second buffer plate 5, a ventilation pipe 6, an aluminum wire filler 7 and a silencer assembly. The base 1 is provided with an anti-slip pad, the upper side of the base 1 is connected to the reaction tube 2, the upper part of the reaction tube 2 is connected to the container 3, the inside of the reaction tube 2 is connected to the first buffer plate 4, the first buffer plate 4 and the second buffer plate 5 are installed in reverse, the second buffer plate 5 is located at the lower side of the first buffer plate 4, the inside of the reaction tube 2 is connected to the second buffer plate 5, the lower part of the reaction tube 2 is connected to the ventilation pipe 6, the inside of the container 3 is filled with aluminum wire filler 7, the connecting piece 8 is provided with a silencer assembly, and the outer shell 9 is made of carbon steel and has the characteristics of corrosion resistance.
[0019] like Figure 1-Figure 3 As shown, the silencer assembly also includes a connecting member 8, a shell 9, a silencer 10, and a fixing plate 11. The connecting member 8 is connected to the upper side of the container 3, the shell 9 is connected to the upper side of the connecting member 8, two upper and lower fixing plates 11 are connected inside the shell 9, and the silencer 10 is connected between the fixing plates 11.
[0020] When using the device, first move the base 1 to the nitrogen adsorption area of the VSPA oxygen production system, then connect the ventilation pipe 6 to the adsorption tower of the VPSA oxygen production system, and then pass air into the adsorption tower so that the adsorption tower adsorbs nitrogen to produce oxygen. When the adsorption tower is saturated with nitrogen, reduce the pressure in the adsorption tower so that the adsorption tower discharges the adsorbed nitrogen. The discharged nitrogen passes through the ventilation pipe 6 and enters the reaction tube 2. When the airflow passes through the first buffer plate 4 and the second buffer plate 5, the airflow is buffered by the first buffer plate 4 and the second buffer plate 5. , so that the air flow velocity is reduced, and then the slowed nitrogen air flow passes through the container 3 on the reaction tube 2, and the container 3 is filled with aluminum wire filler 7. Under the action of the aluminum wire filler 7, the air flow is further slowed down, and the slowed air flow enters the silencer 10 on the fixed plate 11, so that the silencer 10 silences and reduces the noise of the air flow. The silenced nitrogen air flow is then discharged from the outer shell 9 to complete the nitrogen venting, so that the impact force of the air flow on the inside of the silencer can be greatly reduced through the aluminum wire filler 7, and the vibration of the silencer 10 is reduced, so that the silencing and noise reduction effect is better and the cost is lower.
[0021] Although the present disclosure has been shown and described with reference to specific exemplary embodiments of the present disclosure, it should be understood by those skilled in the art that various changes in form and details may be made to the present disclosure without departing from the spirit and scope of the present disclosure as defined by the appended claims and their equivalents. Therefore, the scope of the present disclosure should not be limited to the above-mentioned embodiments, but should be determined not only by the appended claims, but also by the equivalents of the appended claims.
Claims
1. A nitrogen venting device suitable for a small VPSA oxygen production system, characterized by: The invention comprises a base (1), a reaction tube (2), a container (3), a ventilation pipe (6), an aluminum wire filler (7) and a silencer assembly. The upper side of the base (1) is connected to the reaction tube (2), the upper part of the reaction tube (2) is connected to the container (3), the lower part of the reaction tube (2) is connected to the ventilation pipe (6), the interior of the container (3) is filled with the aluminum wire filler (7), and the silencer assembly is arranged on the connecting piece (8).
2. A nitrogen venting device suitable for a small VPSA oxygen production system according to claim 1, characterized in that: The base (1) is provided with an anti-skid pad.
3. A nitrogen venting device suitable for a small VPSA oxygen production system according to claim 2, characterized in that: The shell (9) is made of carbon steel.
4. A nitrogen venting device suitable for a small VPSA oxygen production system according to claim 3, characterized in that: The silencer assembly also includes a connecting piece (8), an outer shell (9), a silencer (10) and a fixing plate (11); the upper side of the container (3) is connected to the connecting piece (8); the upper side of the connecting piece (8) is connected to the outer shell (9); the interior of the outer shell (9) is connected to two upper and lower fixing plates (11); and the silencer (10) is connected between the fixing plates (11).
5. A nitrogen venting device suitable for a small VPSA oxygen production system according to claim 4, characterized in that: It also includes a first buffer plate (4) and a second buffer plate (5) shell. The first buffer plate (4) is connected inside the reaction cylinder (2). The second buffer plate (5) is connected inside the reaction cylinder (2). The second buffer plate (5) is located at the lower side of the first buffer plate (4).
6. A nitrogen venting device suitable for a small VPSA oxygen production system according to claim 5, characterized in that: It also includes a first buffer plate (4) and a second buffer plate (5) which are installed in reverse.