Energy-saving waste gas recovery nitrogen making machine
Through waste gas collection and convenient adsorbent replacement structure, the problems of inconvenience and residual adsorbent replacement in the nitrogen generator are solved, and the efficiency of waste gas utilization and replacement is improved.
Patent Information
- Application Number
- CN202422346310.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-26
- Publication Date
- 2025-07-25
- Estimated Expiration
- 2034-09-26
AI Technical Summary
The existing nitrogen generators are complicated and inconvenient to replace the adsorbent, and the adsorbent residue remains in the adsorbent tower and are difficult to completely discharge, resulting in waste of resources.
An exhaust gas collection pipe and gas storage tank were designed to collect the exhaust gas after nitrogen production, and an adsorbent structure that is easy to replace is set, including adsorbent addition and discharge ports, and a control valve and limiting plate ensure that the adsorbent is completely replaced to avoid residue.
It realizes effective utilization of waste gas, saves energy and is environmentally friendly, and simplifies the adsorbent replacement process, improves the replacement efficiency and avoids adsorbent residues.
Smart Images
Figure CN223150292U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a nitrogen generator, in particular to an energy-saving waste gas recovery nitrogen generator. Background Art
[0002] A nitrogen generator is a device that uses air as a raw material and separates oxygen and nitrogen therein by physical methods to obtain nitrogen. In the existing technology, after the nitrogen is separated by the nitrogen generator and transported to the nitrogen storage device, the gas adsorbed by the adsorbent and the remaining gas are directly emptied after the waste gas in the adsorbent is desorbed by regenerating the adsorbent. However, the waste gas can be used in some equipment that requires gas, such as some instruments and meters. Directly emptying the waste gas is a waste.
[0003] The adsorbent in the adsorption tower of the nitrogen generator needs to be replaced after being used for a period of time. In the existing technology, when replacing the adsorbent, either the adsorption tower is opened for replacement, which is cumbersome and inconvenient to operate and has low efficiency; or a discharge pipe is set up for discharge, but in this way, the adsorbent in the adsorption tower often remains in the dead corner and is difficult to discharge. Therefore, an energy-saving waste gas recovery nitrogen generator is proposed. Summary of the Utility Model
[0004] The purpose of the utility model is to provide an energy-saving waste gas recovery nitrogen generator to solve the above problems.
[0005] To achieve the above purpose, the utility model provides the following technical solution: An energy-saving waste gas recovery nitrogen generator includes an air inlet, an adsorption tower connected to the air inlet through a pipeline, a nitrogen outlet pipe connected to the adsorption tower, and an exhaust pipe connected to the adsorption tower; it is characterized in that it further includes a waste gas collection pipe connected to the exhaust pipe and a waste gas storage tank connected to the waste gas collection pipe; the adsorption tower includes adsorption tower A and adsorption tower B.
[0006] Further preferably, a plurality of control valves are installed on the pipeline connecting the air inlet and the adsorption tower.
[0007] Further preferably, a plurality of control valves are also installed on the nitrogen outlet pipe.
[0008] Further preferably, a plurality of control valves and a muffler for reducing the noise when the waste gas is discharged are installed on the exhaust pipe.
[0009] Further preferably, it further includes a controller for controlling a plurality of control valves.
[0010] Further preferably, a replacement structure for facilitating the replacement of the adsorbent is provided on the adsorption tower. The replacement structure includes an adsorbent discharge port provided at the lower part of the adsorption tower, an adsorbent addition port provided at the upper part of the adsorption tower, and an upper limit plate and a lower limit plate provided in the adsorption tower for limiting the position of the adsorbent; control valves are installed at both the adsorbent addition port and the adsorbent discharge port.
[0011] Further preferably, a plurality of through holes are provided on both the upper limit plate and the lower limit plate; the lower limit plate is arranged in a funnel shape and a discharge port is provided at the bottom, and a discharge channel is obliquely arranged between the discharge port and the adsorbent discharge port.
[0012] The beneficial effects of the present utility model: Through the arrangement of the waste gas collection pipe and the waste gas storage tank, the waste gas after nitrogen production is collected. The collected waste gas is stored in the waste gas storage tank and can be supplied to other equipment that requires gas for use, realizing waste gas utilization and energy conservation.
[0013] Through the arrangement of the replacement structure, it is convenient to replace the adsorbent in the adsorption tower. The operation is simple, convenient, fast, and efficient, and when replacing, it can avoid part of the adsorbent to be replaced remaining in the adsorption tower. Description of the Drawings
[0014] Attached Figure 1 is the process schematic diagram of the present utility model;
[0015] Attached Figure 2 is the structural schematic diagram of the adsorption tower in the present utility model.
[0016] Legend: 1, air inlet; 2, adsorption tower; 21, adsorption tower A; 22, adsorption tower B; 3, nitrogen outlet pipe; 4, exhaust pipe; 5, waste gas collection pipe; 6, waste gas storage tank; 7, control valve; 8, silencer; 9, controller; 10, adsorbent addition port; 11, adsorbent discharge port; 12, upper limit plate; 13, lower limit plate; 14, through hole; 15, discharge port; 16, discharge channel. Detailed Embodiments
[0017] Next, we will further explain the energy-saving waste gas recovery nitrogen generator of the present utility model in conjunction with the drawings.
[0018] It should be noted that all the directional indicators such as up, down, left, right, front, back... in the embodiments of the present utility model are only used to explain the relative position relationship and movement conditions between components in a specific posture as shown in the drawings. If the specific posture changes, the directional indicators will also change accordingly.
[0019] In the present utility model, unless otherwise clearly specified and defined, terms such as "connection" and "fixation" shall be understood in a broad sense; for example, "fixation" can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.
[0020] Referring to Figure 1-2 As shown in , an energy-saving waste gas recovery nitrogen generator includes an air inlet 1, an adsorption tower 2 connected to the air inlet 1 through a pipeline, a nitrogen outlet pipe 3 connected to the adsorption tower 2, and an exhaust pipe 4 connected to the adsorption tower 2; it is characterized in that it further includes a waste gas collection pipe 5 connected to the exhaust pipe 4 and a waste gas storage tank 6 connected to the waste gas collection pipe 5; the adsorption tower 2 includes an adsorption tower A 21 and an adsorption tower B 22;
[0021] Through the arrangement of the waste gas collection pipe 5 and the waste gas storage tank 6, it is used to collect the waste gas after nitrogen production. The collected waste gas is stored in the waste gas storage tank 6 and can be supplied to other equipment that requires gas for use, realizing waste gas utilization and energy conservation.
[0022] In one embodiment, a number of control valves 7 are installed on the pipeline connecting the air inlet 1 and the adsorption tower 2.
[0023] In one embodiment, a number of control valves 7 are also installed on the nitrogen outlet pipe 3.
[0024] In one embodiment, a number of control valves 7 and a silencer 8 for reducing the noise when the waste gas is discharged are also installed on the exhaust pipe 4.
[0025] In one embodiment, it further includes a controller 9 for controlling a number of control valves 7. Through the arrangement of the controller 9, it is used to automatically control the opening and closing of the control valves 7, etc.
[0026] In one embodiment, the adsorption tower 2 is provided with a replacement structure for facilitating the replacement of the adsorbent. The replacement structure includes an adsorbent discharge port 11 provided at the lower part of the adsorption tower 2, an adsorbent addition port 10 provided at the upper part of the adsorption tower 2, and an upper limit plate 12 and a lower limit plate 13 provided inside the adsorption tower 2 for limiting the position of the adsorbent; control valves 7 are installed at both the adsorbent addition port 10 and the adsorbent discharge port 11;
[0027] Through the arrangement of the replacement structure, it is convenient to replace the adsorbent in the adsorption tower 2. The operation is simple, convenient, fast, and efficient, and the remaining part of the adsorbent to be replaced can be avoided from remaining in the adsorption tower 2 during replacement;
[0028] Through the settings of the upper limit plate 12 and the lower limit plate 13, the position of the adsorbent in the adsorption tower 2 is limited to prevent it from entering the exhaust pipe 4 or the nitrogen outlet pipe 3 during use.
[0029] In one embodiment, a number of through holes 14 are provided on both the upper limit plate 12 and the lower limit plate 13; the lower limit plate 13 is arranged in a funnel shape and a discharge port 15 is provided at the bottom, and an inclined discharge channel 16 is connected between the discharge port 15 and the adsorbent discharge port 11.
[0030] By setting the lower limit plate 13 in a funnel shape, the purpose is to enable all the adsorbent to move downward along the conical surface by its own gravity to the discharge port 15 and then be discharged through the discharge channel 16 and the adsorbent discharge port 11 when discharging the adsorbent, and at the same time, all the adsorbent can be automatically discharged to avoid remaining in the adsorption tower 2.
[0031] When the present utility model is in use: after the produced nitrogen is discharged through the nitrogen outlet pipe 3, the adsorbent in the adsorption tower 2 is regenerated and analyzed. The exhausted gas first passes through the exhaust pipe 4 and is discharged into the exhaust gas storage tank 6 through the exhaust gas collection pipe 5. When the pressure in the exhaust gas storage tank 6 reaches the set value, the corresponding control valve 7 is closed, and the exhaust gas is stopped from being introduced into the exhaust gas storage tank 6. The remaining exhaust gas is then discharged through the exhaust pipe 4 after noise reduction by the silencer 8.
[0032] When the adsorbent needs to be replaced, first control the control valve 7 at the adsorbent discharge port 11 to open. The adsorbent in the adsorption tower 2 is discharged through its own gravity and the conical surface on the lower limit plate 13 through the discharge port 15, the discharge channel 16 and the adsorbent discharge port 11. After all the adsorbent is discharged, close the control valve 7 at the adsorbent discharge port 11, then open the control valve 7 at the adsorbent addition port 10, and add new adsorbent into the adsorption tower 2 from the adsorbent addition port 10. After the adsorbent addition is completed, close the control valve 7 at the adsorbent addition port 10.
[0033] The protection scope of the present utility model is not limited to the above embodiments and their variations. Conventional modifications and replacements made by those skilled in the art based on the content of this embodiment all fall within the protection scope of the present utility model.
Claims
1. An energy-saving waste gas recovery nitrogen generator, comprising an air inlet (1), an adsorption tower (2) connected to the air inlet (1) through a pipeline, a nitrogen outlet pipe (3) connected to the adsorption tower (2), and an exhaust pipe (4) connected to the adsorption tower (2); characterized in that It also includes an exhaust gas collecting pipe (5) connected to the exhaust pipe (4) and an exhaust gas storage tank (6) connected to the exhaust gas collecting pipe (5); the adsorption tower (2) includes an adsorption tower A (21) and an adsorption tower B (22).
2. The nitrogen generator for energy-saving waste gas recovery according to claim 1, characterized in that: A number of control valves (7) are installed on the pipeline connecting the air inlet (1) and the adsorption tower (2).
3. An energy-saving waste gas recovery nitrogen generator according to claim 1, characterized in that: A number of control valves (7) are also installed on the nitrogen outlet pipe (3).
4. The nitrogen generator for energy-saving waste gas recovery according to claim 1, wherein: A number of control valves (7) and a silencer (8) for reducing the noise when the exhaust gas is discharged are also installed on the exhaust pipe (4).
5. An energy-saving waste gas recovery nitrogen generator according to claim 4, characterized in that: It also includes a controller (9) for controlling a number of control valves (7).
6. An energy-saving waste gas recovery nitrogen generator according to claim 1, characterized in that: The adsorption tower (2) is provided with a replacement structure for facilitating the replacement of the adsorbent. The replacement structure includes an adsorbent discharge port (11) provided at the lower part of the adsorption tower (2), an adsorbent addition port (10) provided at the upper part of the adsorption tower (2), and an upper limit plate (12) and a lower limit plate (13) provided in the adsorption tower (2) for limiting the position of the adsorbent; control valves (7) are installed at both the adsorbent addition port (10) and the adsorbent discharge port (11).
7. An energy-saving waste gas recovery nitrogen generator according to claim 6, characterized in that: A number of through holes (14) are provided on both the upper limit plate (12) and the lower limit plate (13); the lower limit plate (13) is arranged in a funnel shape and a discharge port (15) is provided at the bottom. An inclined discharge channel (16) is connected between the discharge port (15) and the adsorbent discharge port (11).