High temperature sintering box shaft head circulation cooling system
By adopting a shaft head circulating cooling system in a high-temperature sintering box, the problem of deformation of the guide roller is solved, ensuring the rotation accuracy of the guide roller and the smooth operation of the gas diffusion layer material.
Patent Information
- Application Number
- CN202421475387.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-25
- Publication Date
- 2025-04-01
- Estimated Expiration
- 2034-06-25
AI Technical Summary
High temperature causes the guide rollers in the sintering box to deform, reducing the rotation accuracy of the guide rollers and affecting the smooth operation of the gas diffusion layer material in the sintering box.
The high-temperature sintered box shaft head circulating cooling system is adopted, including an annular water-cooled jacket and a circulating cold water system. By continuously injecting cooling water into the shaft head, the temperature of the shaft head and the bearing is reduced and the deformation of the guide roller is reduced.
It effectively reduces the deformation and temperature of the guide roller in the sintering box, ensures the rotation accuracy of the guide roller, and thus ensures the smooth operation of the gas diffusion layer material in the sintering box.
Smart Images
Figure CN222703839U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of hydrogen energy equipment, and in particular relates to a high-temperature sintering box shaft head circulation cooling system. Background Art
[0002] The gas diffusion layer is a key material in hydrogen fuel cells. Its substrate, carbon fiber paper, undergoes multiple coating and sintering treatments to improve the corrosion resistance, hydrophobicity, mechanical strength and other properties of the gas diffusion layer. The coating treatment uses slit, comma, dipping, metering and other coating methods.
[0003] The traditional sintering process is carried out in a sealed sintering box, which has low production efficiency and is only suitable for intermittent sintering of sheets and samples. The new continuous high-temperature sintering box is not completely sealed, with material inlets and outlets at both ends. After the gas diffusion layer coil enters the box through one end inlet, it is sent out from the outlet under the support of the guide roller group. It can run continuously, which ensures both production efficiency and uniformity and consistency of the gas diffusion layer material. In the above process, in order to ensure the smooth operation of the gas diffusion layer material in the sintering box, the rotation accuracy of the guide roller in the sintering box is particularly important, but the sintering process temperature is between 350 and 400 ° C. The high temperature easily causes the guide roller in the sintering box to deform, thereby reducing the rotation accuracy of the guide roller. Utility Model Content
[0004] The utility model aims to provide a high-temperature sintering box shaft head circulation cooling system, which solves the problem in the prior art that high temperature causes guide roller deformation and affects the smooth operation of gas diffusion layer materials in the sintering box.
[0005] The technical scheme adopted by the utility model is: a high-temperature sintering box shaft head circulating cooling system, including a shaft head cooling device, the shaft head cooling device is fixed on the outer wall of the sintering box corresponding to the guide roller, the shaft head cooling device includes an annular water cooling jacket sleeved on the outer side of the guide roller, the inner layer of the water cooling jacket is a shaft cooling cavity, and circulating cold water inlets and circulating water outlets are respectively arranged on opposite sides of the water cooling jacket, the circulating cold water inlet is connected with a water inlet pipeline, the circulating water outlet is connected with a drainage pipeline, and the other end of the water inlet pipeline and the other end of the drainage pipeline are connected to a cooling water source.
[0006] The utility model is also characterized in that:
[0007] A bearing is fixedly sleeved between the inner side of the water cooling jacket and the outer side of the guide roller. One end of the guide roller extends out of the bearing and then extends into the sintering box, and the other end of the guide roller extends out of the bearing and then connects to the pulley.
[0008] One end of the water cooling jacket is fixed to the outer wall of the sintering box and is provided with a heat insulation sealing ring sleeved on the outer side of the guide roller.
[0009] The end of the water inlet pipeline away from the circulating cold water inlet is connected to the water inlet circulating pipeline, the end of the drainage pipeline away from the circulating water outlet is connected to the drainage circulating pipeline, and the other end of the water inlet circulating pipeline and the other end of the drainage circulating pipeline are commonly connected to the cooling tower.
[0010] Check valves are provided on both the water inlet circulation pipeline and the drainage circulation pipeline.
[0011] A booster pump is provided on the water inlet circulation pipeline.
[0012] The side wall of the sintering box is hollow, including an inner stainless steel plate and an outer stainless steel plate. The inner stainless steel plate and the outer stainless steel plate are filled with insulation material, steel frame material and heat insulation material from inside to outside.
[0013] The beneficial effects of the utility model are as follows: the high-temperature sintering box shaft head circulating cooling system of the utility model realizes the reduction of shaft head and bearing temperature by continuously injecting cooling water into the shaft head cooling device and discharging circulating water, reduces the deformation of the guide roller in the sintering box, ensures the rotation accuracy of the guide roller in the sintering box, and thus ensures the smooth operation of the gas diffusion layer material in the sintering box. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a structural schematic diagram of the high-temperature sintering box shaft head circulation cooling system of the utility model;
[0015] Figure 2 The utility model is a structural schematic diagram of a shaft head cooling device in a high-temperature sintering box shaft head circulating cooling system.
[0016] In the figure, 1. sintering box, 2. guide roller, 3. shaft head cooling device, 4. water inlet pipeline, 5. drainage pipeline, 6. water inlet circulation pipeline, 7. drainage circulation pipeline, 8. check valve, 9. booster pump, 10. cooling tower, 11. stainless steel plate for the inner wall of sintering box, 12. thermal insulation material, 13. steel frame material, 14. thermal insulation material, 15. stainless steel plate for the outer wall of sintering box, 16. pulley;
[0017] 3-1. Insulation sealing ring, 3-2. Water cooling jacket, 3-3. Circulating cold water inlet, 3-4. Circulating water outlet, 3-5. Bearing, 3-6. Shaft cooling chamber. DETAILED DESCRIPTION
[0018] The utility model is described in detail below with reference to the accompanying drawings and specific implementation modes.
[0019] Example 1
[0020] The utility model provides a high temperature sintering box shaft head circulation cooling system, such as Figure 1 and Figure 2As shown, the shaft head cooling device 3 is included, and the shaft head cooling device 3 is fixed on the outer wall of the sintering box 1 corresponding to the guide roller 2. The shaft head cooling device 3 includes an annular water-cooling jacket 3-2 sleeved on the outside of the guide roller 2, and the interlayer of the water-cooling jacket 3-2 is a shaft cooling chamber 3-6. A bearing 3-5 is fixedly sleeved between the inner side of the water-cooling jacket 3-2 and the outer side of the guide roller 2. One end of the guide roller 2 extends out of the bearing 3-5 and then extends into the sintering box 1. The other end of the guide roller 2 extends out of the bearing 3-5 and then connects to the pulley 16 to provide rotational power for the guide roller 2. One end of the water-cooling jacket 3-2 is fixed to the outer wall of the sintering box 1 and is provided with a heat-insulating sealing ring 3-1 sleeved on the outside of the guide roller 2 to reduce the heat loss of the sintering box 1 at the position where the guide roller 2 extends. A circulating cold water inlet 3-3 and a circulating water outlet 3-4 are respectively arranged on the opposite sides of the water-cooling jacket 3-2. The circulating cold water inlet 3-3 is connected to a water inlet pipeline 4, and the circulating water outlet 3-4 is connected to a drainage pipeline 5. The end of the water inlet pipeline 4 away from the circulating cold water inlet 3-3 is connected to a water inlet circulation pipeline 6. A booster pump 9 is arranged on the water inlet circulation pipeline 6 to increase the water inlet pressure. The end of the drainage pipeline 5 away from the circulating water outlet 3-4 is connected to a drainage circulation pipeline 7. Check valves 8 are arranged on the water inlet circulation pipeline 6 and the drainage circulation pipeline 7 to prevent the cooling water from flowing in reverse. The other end of the water inlet circulation pipeline 6 and the other end of the drainage circulation pipeline 7 are commonly connected to a cooling tower 10. The drainage in the drainage circulation pipeline 7 re-enters the water inlet circulation pipeline 6 after being fully cooled in the cooling tower 10.
[0021] Through the above-mentioned method, the high-temperature sintering box shaft head circulating cooling system of the utility model realizes the reduction of the temperature of the shaft head and bearings 3-5 by continuously injecting cooling water into the shaft head cooling device 3 and discharging circulating water, thereby reducing the deformation of the guide roller 2 in the sintering box 1 and preventing the rotation from being stuck, ensuring the rotation accuracy of the guide roller 2 in the sintering box 1, thereby ensuring the smooth operation of the gas diffusion layer material in the sintering box 1.
[0022] Example 2
[0023] The utility model provides a high temperature sintering box shaft head circulation cooling system, such as Figure 1 and Figure 2 As shown, it includes a shaft head cooling device 3, and the shaft head cooling device 3 is fixed on the outer wall of the sintering box 1 corresponding to the guide roller 2. The shaft head cooling device 3 includes an annular water-cooling jacket 3-2 sleeved on the outside of the guide roller 2, and the interlayer of the water-cooling jacket 3-2 is a shaft cooling chamber 3-6. A bearing 3-5 is fixedly sleeved between the inner side of the water-cooling jacket 3-2 and the outer side of the guide roller 2. One end of the guide roller 2 extends out of the bearing 3-5 and then extends into the sintering box 1. The other end of the guide roller 2 extends out of the bearing 3-5 and then connects to the pulley 16 to provide rotational power for the guide roller 2. One end of the water-cooling jacket 3-2 is fixed to the outer wall of the sintering box 1 and is provided with a heat-insulating sealing ring 3-1 sleeved on the outside of the guide roller 2, so as to reduce the heat loss of the sintering box 1 at the position where the guide roller 2 extends out. In order to further reduce the heat loss in the sintering box 1 and ensure the sintering effect, as shown in FIG. Figure 2 As shown, the side wall of the sintering box 1 is set to be hollow, including an inner stainless steel plate 11 of the sintering box and an outer stainless steel plate 15 of the sintering box. The inner stainless steel plate 11 of the sintering box and the outer stainless steel plate 15 of the sintering box are filled with insulation material 12, steel frame material 13 and heat insulation material 14 in sequence from the inside to the outside. A circulating cold water inlet 3-3 and a circulating water outlet 3-4 are respectively arranged on the opposite sides of the water-cooling jacket 3-2. The circulating cold water inlet 3-3 is connected to a water inlet pipeline 4, and the circulating water outlet 3-4 is connected to a drainage pipeline 5. The end of the water inlet pipeline 4 away from the circulating cold water inlet 3-3 is connected to a water inlet circulation pipeline 6. A booster pump 9 is arranged on the water inlet circulation pipeline 6 to increase the water inlet pressure. The end of the drainage pipeline 5 away from the circulating water outlet 3-4 is connected to a drainage circulation pipeline 7. Check valves 8 are arranged on the water inlet circulation pipeline 6 and the drainage circulation pipeline 7 to prevent the cooling water from flowing in reverse. The other end of the water inlet circulation pipeline 6 and the other end of the drainage circulation pipeline 7 are commonly connected to a cooling tower 10. The drainage in the drainage circulation pipeline 7 re-enters the water inlet circulation pipeline 6 after being fully cooled in the cooling tower 10.
[0024] Through the above-mentioned method, the high-temperature sintering box shaft head circulating cooling system of the utility model realizes the reduction of the temperature of the shaft head and bearings 3-5 by continuously injecting cooling water into the shaft head cooling device 3 and discharging circulating water, thereby reducing the deformation of the guide roller 2 in the sintering box 1 and preventing the rotation from being stuck, ensuring the rotation accuracy of the guide roller 2 in the sintering box 1, thereby ensuring the smooth operation of the gas diffusion layer material in the sintering box 1.
[0025] Example 3
[0026] The utility model provides a high-temperature sintering box shaft head circulation cooling system. When working, the cooling water after being fully cooled in the cooling tower 10 enters the water inlet pipe 4 at both ends of each guide roller 2 through the water inlet circulation pipe 6. A booster pump 9 is arranged on the water inlet circulation pipe 6 to increase the water inlet pressure. A check valve 8 is also arranged on the water inlet circulation pipe 6 to prevent the cooling water from flowing in reverse. The cooling water in the water inlet pipe 4 enters the shaft cooling cavity 3-6 in the interlayer of the water cooling jacket 3-2 through the circulating cold water inlet 3-3 of the shaft head cooling device 3, and the shaft head and bearing 3-5 of the guide roller 2 inside the water cooling jacket 3-2 are water-cooled and cooled. The circulating water after absorbing heat enters the drainage pipe 5 at both ends of each guide roller 2 through the circulating water outlet 3-4, and then enters the cooling tower 10 through the drainage circulation pipe 7 to cool the absorbing heat circulating water. The drainage circulation pipe 7 is provided with a check valve 8 to prevent the cooling water from flowing in reverse, thereby completing the circulation cooling of the shaft head of the guide roller 2 and the bearing 3-5.
[0027] Through the above-mentioned method, the high-temperature sintering box shaft head circulating cooling system of the utility model realizes the reduction of the temperature of the shaft head and bearings 3-5 by continuously injecting cooling water into the shaft head cooling device 3 and discharging circulating water, thereby reducing the deformation of the guide roller 2 in the sintering box 1 and preventing the rotation from being stuck, ensuring the rotation accuracy of the guide roller 2 in the sintering box 1, thereby ensuring the smooth operation of the gas diffusion layer material in the sintering box 1.
Claims
1. High temperature sintering box shaft head circulation cooling system, characterized by: The invention comprises a shaft head cooling device (3), wherein the shaft head cooling device (3) is fixed on the outer wall of the sintering box (1) corresponding to the guide roller (2), the shaft head cooling device (3) comprises an annular water cooling jacket (3-2) sleeved on the outer side of the guide roller (2), the inner layer of the water cooling jacket (3-2) is a shaft cooling cavity (3-6), and the water cooling jacket (3-2) is provided with a circulating cold water inlet (3-3) and a circulating water outlet (3-4) on opposite sides, the circulating cold water inlet (3-3) is connected to a water inlet pipeline (4), the circulating water outlet (3-4) is connected to a drainage pipeline (5), and the other end of the water inlet pipeline (4) and the other end of the drainage pipeline (5) are connected to a cooling water source.
2. The high temperature sintering box shaft head circulating cooling system according to claim 1, characterized in that: A bearing (3-5) is fixedly sleeved between the inner side of the water-cooling jacket (3-2) and the outer side of the guide roller (2); one end of the guide roller (2) extends out of the bearing (3-5) and then extends into the sintering box (1); the other end of the guide roller (2) extends out of the bearing (3-5) and then is connected to a pulley (16).
3. The high temperature sintering box shaft head circulating cooling system according to claim 1, characterized in that: One end of the water-cooling jacket (3-2) is fixed to the outer wall of the sintering box (1) and is provided with a heat-insulating sealing ring (3-1) sleeved on the outside of the guide roller (2).
4. The high temperature sintering box shaft head circulating cooling system according to claim 1, characterized in that: The end of the water inlet pipeline (4) away from the circulating cold water inlet (3-3) is connected to the water inlet circulation pipeline (6), the end of the drainage pipeline (5) away from the circulating water outlet (3-4) is connected to the drainage circulation pipeline (7), and the other end of the water inlet circulation pipeline (6) and the other end of the drainage circulation pipeline (7) are jointly connected to a cooling tower (10).
5. The high temperature sintering box shaft head circulation cooling system according to claim 4, characterized in that: Both the water inlet circulation pipeline (6) and the water discharge circulation pipeline (7) are provided with a check valve (8).
6. The high temperature sintering box shaft head circulation cooling system according to claim 4, characterized in that: The water inlet circulation pipeline (6) is provided with a booster pump (9).
7. The high temperature sintering box shaft head circulation cooling system according to claim 1, characterized in that: The side wall of the sintering box (1) is hollow and includes an inner stainless steel plate (11) of the sintering box wall and an outer stainless steel plate (15) of the sintering box wall. The space between the inner stainless steel plate (11) of the sintering box wall and the outer stainless steel plate (15) of the sintering box wall is filled with a heat preservation material (12), a steel frame material (13) and a heat insulating material (14) in sequence from the inside to the outside.