An automatic circulating nitrogen protection device
By designing an automatic circulating nitrogen protection device, the problems of cumbersome operation and discontinuous supply of traditional nitrogen protection methods are solved, and the automated circulating supply and uniform distribution of nitrogen is achieved, which significantly improves the protection effect.
Patent Information
- Application Number
- CN202411947989.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-27
- Publication Date
- 2025-04-04
AI Technical Summary
The traditional nitrogen protection method requires manual and regular injection of nitrogen into the furnace tube. The operation is cumbersome and the continuous supply of nitrogen cannot be guaranteed, resulting in poor protection effect.
An automatic circulating nitrogen protection device is designed, including a nitrogen generator, a nitrogen treatment box, a gas storage tank, an air pump and a control device. By monitoring the nitrogen concentration in the furnace tube in real time, the nitrogen generation and transportation rate is automatically adjusted to ensure the continuous supply and uniform distribution of nitrogen.
The automatic circulating supply of nitrogen is realized, the stability and uniform distribution of nitrogen in the furnace tube is ensured, the protection effect is significantly improved, and the cumbersome and discontinuity of manual operation is avoided.
Smart Images
Figure CN119755533A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of industrial furnace tube protection, in particular to an automatic circulating nitrogen protection device. Background Art
[0002] The conductors in the furnace tube are susceptible to oxidation, corrosion and other damages in a high temperature environment, which not only affects the performance of the conductor, but also reduces the service life of the furnace tube. In order to solve this problem, nitrogen protection technology is widely used in furnace tube protection. The main principle of nitrogen protection is to use the inertness and stability of nitrogen. By filling nitrogen into the furnace tube, an inert gas environment is formed to isolate oxygen and moisture in the air, thereby preventing oxidation and corrosion of the conductor.
[0003] However, the traditional nitrogen protection method requires manual regular injection of nitrogen into the furnace tube, which is cumbersome to operate and cannot guarantee a continuous supply of nitrogen, resulting in poor protection effect. Summary of the invention
[0004] In view of the shortcomings of the prior art, the present invention provides an automatic circulating nitrogen protection device, which solves the problem that the traditional nitrogen protection method requires manual regular injection of nitrogen into the furnace tube, the operation is cumbersome and the continuous supply of nitrogen cannot be guaranteed, thus resulting in poor protection effect.
[0005] The present invention provides the following technical solution: an automatic circulating nitrogen protection device, comprising a base plate, a nitrogen generator is fixedly connected to the upper surface of the base plate, a nitrogen treatment box is arranged on the upper surface of the base plate, a fixing plate is fixedly installed on the upper surface of the base plate, a gas storage tank is installed on the fixing plate, an inlet end of the gas storage tank is connected to an inlet pipe, an outlet end of the nitrogen generator is connected to an outlet pipe, both the inlet pipe and the outlet pipe are connected to the nitrogen treatment box, the inlet end of the nitrogen generator is connected to an inlet pipe, an air pump is fixedly installed on the upper surface of the base plate, the inlet end of the air pump is connected to the gas storage tank, the outlet end of the air pump is connected to an outlet pipe, one end of the outlet pipe is connected to a three-way valve, and the outlet pipe is connected to a furnace pipe through the three-way valve.
[0006] Preferred technical solution one: the air outlet pipe and the air inlet pipe are both corrugated hoses, one end of the air outlet pipe and the air inlet pipe are fixedly installed with a connecting joint, both sides of the nitrogen treatment box are rotatably installed with connecting sleeves, the outer surfaces of the two connecting joints are provided with external threads, the inner walls of the two connecting sleeves are provided with internal threads, the connecting joints can be threadedly sleeved inside the connecting sleeves, and one end of the two connecting sleeves extends to the interior of the nitrogen treatment box.
[0007] Preferred technical solution 2: a dehumidification plate is fixedly installed inside the nitrogen treatment box, and a dust removal plate is fixedly installed inside the nitrogen treatment box.
[0008] Preferred technical solution three: the interior of the fixed plate is hollow and has two empty grooves on the upper surface, a bidirectional screw is rotatably connected between the inner side walls of the fixed plate, two screw sleeves are threadedly sleeved on the surface of the bidirectional screw, a sliding rod is fixedly connected between the inner side walls of the fixed plate, two sliding sleeves are slidably sleeved on the surface of the sliding rod, and clamps are fixedly connected between the top ends of the two sliding sleeves and the two screw sleeves respectively, and the two clamps can clamp and fix the gas storage tank.
[0009] Preferred technical solution 4: rubber pads are fixedly adhered to the opposite sides of the two clamping plates, and the surfaces of the two rubber pads are provided with anti-slip grooves.
[0010] Preferred technical solution five: a filter plate is fixedly installed between the inner walls of the inlet pipe, a rotating rod is rotatably installed on the surface of the filter plate, an impeller is fixedly sleeved on the surface of the rotating rod, one end of the rotating rod extends to the outside of the filter plate and is fixedly sleeved with two scrapers, and both of the scrapers are attached to the filter plate.
[0011] Preferred technical solution six: a flow meter is provided on the outlet pipe, a throttle valve is provided on the outlet pipe, and the outlet pipe is a hose.
[0012] Preferred technical solution seven: A control device is provided on the bottom plate, and the control device is electrically connected to the air pump and the nitrogen generator. A nitrogen concentration detector is provided inside the furnace tube, and the nitrogen generator is electrically connected to the nitrogen concentration detector.
[0013] Compared with the prior art, the present invention provides an automatic circulating nitrogen protection device, which has the following beneficial effects: when in use, nitrogen is generated by a nitrogen generator, the nitrogen is processed by a nitrogen processing box, dust and water vapor mixed inside are removed and stored in a gas storage tank, and the nitrogen concentration inside the furnace tube is monitored by a nitrogen concentration detector inside the furnace tube. When the nitrogen concentration is low, the air pump is controlled by a control device to extract the nitrogen inside the gas storage tank and transport it to the inside of the furnace tube through an outlet pipe. In the furnace tube, the nitrogen is evenly sprayed into the furnace tube through a nozzle with a specific pressure to form a nitrogen protection layer, which isolates oxygen and moisture in the air and prevents oxidation and corrosion of the conductor. At the same time, the nitrogen circulates in the furnace tube to ensure uniform distribution and continuous supply of nitrogen, and the control device monitors the concentration of nitrogen in the furnace tube in real time, adjusts the generation and transportation rate of nitrogen according to actual needs, and ensures the stability of nitrogen in the furnace tube. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a front structural schematic diagram of the present invention;
[0015] Figure 2It is a cross-sectional view of the internal structure of the fixing plate of the present invention;
[0016] Figure 3 It is a cross-sectional view of the internal structure of the inlet pipe of the present invention;
[0017] Figure 4 This is a disassembled diagram of the nitrogen treatment box and the air inlet pipe and air outlet pipe structure of the present invention;
[0018] Figure 5 It is a cross-sectional view of the internal structure of the nitrogen treatment box of the present invention;
[0019] Figure 6 It is a schematic diagram of the back structure of the present invention.
[0020] In the figure: 1, bottom plate; 2, nitrogen generator; 3, nitrogen treatment box; 4, fixed plate; 5, gas storage tank; 6, air inlet pipe; 7, air outlet pipe; 8, inlet pipe; 9, air pump; 10, outlet pipe; 11, three-way valve; 12, connecting joint; 13, connecting sleeve; 14, dehumidification plate; 15, dust removal plate; 16, two-way screw; 17, screw sleeve; 18, sliding rod; 19, sliding sleeve; 20, clamping plate; 21, filter plate; 22, rotating rod; 23, impeller; 24, scraper; 25, flow meter; 26, throttle valve; 27, control device. DETAILED DESCRIPTION
[0021] See also Figure 1-6 ,
[0022] Embodiment 1: An automatic circulating nitrogen protection device comprises a base plate 1, a nitrogen generator 2 is fixedly connected to the upper surface of the base plate 1, a nitrogen treatment box 3 is arranged on the upper surface of the base plate 1, a fixed plate 4 is fixedly installed on the upper surface of the base plate 1, a gas storage tank 5 is installed on the fixed plate 4, an air inlet end of the gas storage tank 5 is connected with an air inlet pipe 6, an air outlet end of the nitrogen generator 2 is connected with an air outlet pipe 7, both the air inlet pipe 6 and the air outlet pipe 7 are connected with the nitrogen treatment box 3, an air inlet end of the nitrogen generator 2 is connected with an inlet pipe 8, an air pump 9 is fixedly installed on the upper surface of the base plate 1, an air inlet end of the air pump 9 is connected with the gas storage tank 5, an air outlet end of the air pump 9 is connected with an outlet pipe 10, one end of the outlet pipe 10 is connected with a three-way valve 11, and the outlet pipe 10 is connected with the furnace pipe through the three-way valve 11.
[0023] Embodiment 2: The difference between this embodiment and embodiment 1 lies in that, the air outlet pipe 7 and the air inlet pipe 6 are both corrugated hoses, and a connecting joint 12 is fixedly installed at one end of the air outlet pipe 7 and the air inlet pipe 6, and connecting sleeves 13 are rotatably installed on both sides of the nitrogen treatment box 3, and the outer surfaces of the two connecting joints 12 are provided with external threads, and the inner walls of the two connecting sleeves 13 are provided with internal threads. The connecting joints 12 can be threadedly sleeved inside the connecting sleeves 13, and one end of the two connecting sleeves 13 extends to the inside of the nitrogen treatment box 3, so as to facilitate the rapid installation and disassembly of the nitrogen treatment box 3 and the replacement of the new nitrogen treatment box 3, so as to realize the treatment of nitrogen and ensure the purity of nitrogen.
[0024] Embodiment 3: The difference between this embodiment and embodiment 1 is that a dehumidification plate 14 is fixedly installed inside the nitrogen treatment box 3, and a dust removal plate 15 is fixedly installed inside the nitrogen treatment box 3, which can remove water mist and dust in the nitrogen to ensure the purity of the nitrogen.
[0025] Embodiment 4: The difference between this embodiment and embodiment 1 is that the interior of the fixed plate 4 is hollow and has two empty grooves on the upper surface, a bidirectional screw 16 is rotatably connected between the inner side walls of the fixed plate 4, and two screw sleeves 17 are threadedly sleeved on the surface of the bidirectional screw 16, a sliding rod 18 is fixedly connected between the inner side walls of the fixed plate 4, and two sliding sleeves 19 are slidably sleeved on the surface of the sliding rod 18, and clamps 20 are fixedly connected between the top ends of the two sliding sleeves 19 and the two screw sleeves 17, respectively, and the two clamps 20 can clamp and fix the gas tank 5, which is convenient for fixing the gas tank 5 and avoiding shaking on the bottom plate 1 and collision damage. At the same time, the gas tank 5 can be replaced when it is damaged.
[0026] Embodiment 5: The difference between this embodiment and embodiment 1 is that rubber pads are fixedly bonded to the opposite sides of the two clamping plates 20, and the surfaces of the two rubber pads are provided with anti-slip grooves to protect the gas tank 5 and avoid damage to the gas tank 5 due to excessive clamping force.
[0027] Embodiment 6: The difference between this embodiment and embodiment 1 lies in that, a filter plate 21 is fixedly installed between the inner walls of the inlet pipe 8, a rotating rod 22 is rotatably installed on the surface of the filter plate 21, an impeller 23 is fixedly sleeved on the surface of the rotating rod 22, one end of the rotating rod 22 extends to the outside of the filter plate 21 and is fixedly sleeved with two scrapers 24, both of which are attached to the filter plate 21, and can filter impurities such as dust in the gas sucked into the nitrogen generator 2 and automatically scrape them off.
[0028] Embodiment 7: The difference between this embodiment and embodiment 1 is that a flow meter 25 is provided on the outlet pipe 10, a throttle valve 26 is provided on the outlet pipe 10, and the outlet pipe 10 is a hose, which is convenient for monitoring and controlling the flow of nitrogen.
[0029] Embodiment 8: The difference between this embodiment and embodiment 1 is that a control device 27 is provided on the base plate 1, and the control device 27 is electrically connected to the air pump 9 and the nitrogen generator 2. A nitrogen concentration detector is provided inside the furnace tube, and the nitrogen generator 2 is electrically connected to the nitrogen concentration detector. The concentration of nitrogen in the furnace tube is monitored in real time by the control device, and the generation and delivery rate of nitrogen is adjusted according to actual needs to ensure the stability of nitrogen in the furnace tube.
[0030] In summary, the automatic circulating nitrogen protection device generates nitrogen through the nitrogen generator 2 when in use, and the nitrogen is processed by the nitrogen treatment box 3 to remove the dust and moisture mixed inside and store it in the gas storage tank 5. At the same time, the nitrogen concentration inside the furnace tube is monitored by the nitrogen concentration detector inside the furnace tube. When the nitrogen concentration is low, the air pump 9 is controlled by the control device 27 to extract the nitrogen inside the gas storage tank 5 and transport it to the inside of the furnace tube through the outlet pipe 10. In the furnace tube, the nitrogen is evenly sprayed into the furnace tube through a nozzle with a specific pressure to form a nitrogen protection layer, which isolates oxygen and moisture in the air and prevents oxidation and corrosion of the conductor. At the same time, the nitrogen circulates in the furnace tube to ensure the uniform distribution and continuous supply of nitrogen, and the control device 27 monitors the concentration of nitrogen in the furnace tube in real time, adjusts the generation and transportation rate of nitrogen according to actual needs, and ensures the stability of nitrogen in the furnace tube.
Claims
1. An automatic circulating nitrogen protection device, comprising a bottom plate (1), characterized in that: The upper surface of the base plate (1) is fixedly connected to a nitrogen generator (2), the upper surface of the base plate (1) is provided with a nitrogen treatment box (3), the upper surface of the base plate (1) is fixedly mounted with a fixing plate (4), a gas storage tank (5) is mounted on the fixing plate (4), an inlet end of the gas storage tank (5) is connected to an inlet pipe (6), an outlet end of the nitrogen generator (2) is connected to an outlet pipe (7), the inlet pipe (6) and the outlet pipe (7) are connected to each other. The nitrogen generator (2) is connected to the nitrogen treatment box (3); the air inlet end of the nitrogen generator (2) is connected to an inlet pipe (8); an air pump (9) is fixedly mounted on the upper surface of the bottom plate (1); the air inlet end of the air pump (9) is connected to the air storage tank (5); the air outlet end of the air pump (9) is connected to an outlet pipe (10); one end of the outlet pipe (10) is connected to a three-way valve (11); and the outlet pipe (10) is connected to the furnace pipe through the three-way valve (11).
2. The automatic circulating nitrogen protection device according to claim 1 is characterized in that: The air outlet pipe (7) and the air inlet pipe (6) are both corrugated hoses. One end of each of the air outlet pipe (7) and the air inlet pipe (6) is fixedly mounted with a connecting joint (12). Both sides of the nitrogen treatment box (3) are rotatably mounted with connecting sleeves (13). The outer surfaces of the two connecting joints (12) are both provided with external threads. The inner walls of the two connecting sleeves (13) are both provided with internal threads. The connecting joint (12) can be threadedly sleeved inside the connecting sleeve (13). One end of each of the two connecting sleeves (13) extends to the inside of the nitrogen treatment box (3).
3. The automatic circulating nitrogen protection device according to claim 1 is characterized in that: A dehumidification plate (14) is fixedly installed inside the nitrogen treatment box (3), and a dust removal plate (15) is fixedly installed inside the nitrogen treatment box (3).
4. The automatic circulating nitrogen protection device according to claim 1 is characterized in that: The interior of the fixing plate (4) is hollow and has two empty grooves on its upper surface. A bidirectional screw (16) is rotatably connected between the inner side walls of the fixing plate (4). Two screw sleeves (17) are threadedly sleeved on the surface of the bidirectional screw (16). A sliding rod (18) is fixedly connected between the inner side walls of the fixing plate (4). Two sliding sleeves (19) are slidably sleeved on the surface of the sliding rod (18). Clamps (20) are fixedly connected between the top ends of the two sliding sleeves (19) and the two screw sleeves (17). The two clamps (20) can clamp and fix the gas storage tank (5).
5. The automatic circulating nitrogen protection device according to claim 4 is characterized in that: The opposite sides of the two clamping plates (20) are fixedly bonded with rubber pads, and the surfaces of the two rubber pads are provided with anti-slip grooves.
6. The automatic circulating nitrogen protection device according to claim 1 is characterized in that: A filter plate (21) is fixedly mounted between the inner walls of the inlet pipe (8); a rotating rod (22) is rotatably mounted on the surface of the filter plate (21); an impeller (23) is fixedly sleeved on the surface of the rotating rod (22); one end of the rotating rod (22) extends to the outside of the filter plate (21) and is fixedly sleeved with two scrapers (24); the two scrapers (24) are both in contact with the filter plate (21).
7. The automatic circulating nitrogen protection device according to claim 1 is characterized in that: The outlet pipe (10) is provided with a flow meter (25), the outlet pipe (10) is provided with a throttle valve (26), and the outlet pipe (10) is a hose.
8. The automatic circulating nitrogen protection device according to claim 1 is characterized in that: A control device (27) is provided on the bottom plate (1), and the control device (27) is electrically connected to the air pump (9) and the nitrogen generator (2). A nitrogen concentration detector is provided inside the furnace tube, and the nitrogen generator (2) is electrically connected to the nitrogen concentration detector.