Heating drying cylinder inner container, drying device and vehicle-mounted suspension air supply system
By directly heating the molecular sieve with a heating sleeve, the problems of low molecular sieve regeneration rate and efficiency are solved, achieving uniform heating and efficient regeneration of the molecular sieve, reducing production costs and improving the stability of the drying device.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NOVOTEC SHANGHAI ELECTRONICS TECH CO LTD
- Filing Date
- 2025-04-25
- Publication Date
- 2026-05-19
AI Technical Summary
In existing technologies, molecular sieve regeneration rate and efficiency are low, especially due to uneven temperature and slow heating rate during high-temperature backflushing.
A heating sleeve is used as a container to directly heat the molecular sieve. Temperature sensors inside the heating sleeve monitor the temperature and an insulation shell reduces heat loss, ensuring uniform heating of the molecular sieve and rapidly increasing the temperature to promote water separation.
It improves the regeneration rate and efficiency of molecular sieves, reduces production costs, and enhances the stability of the drying device by preventing molecular sieve leakage through sealed end caps and filter components.
Smart Images
Figure CN224252498U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of molecular sieve drying devices, and more specifically, to a heating drying cylinder inner liner, a drying device, and a vehicle suspension air supply system. Background Technology
[0002] In the field of gas drying, existing technologies often use molecular sieves as desiccants to adsorb moisture in gases, thereby achieving the purpose of drying the gases. Specifically, the gas is compressed by a compressor and then enters a drying cylinder containing a molecular sieve. When the high-pressure gas flows through the molecular sieve, the molecular sieve comes into contact with the moisture in the gas, and the moisture is adsorbed by the molecular sieve. However, as the amount of moisture adsorbed in the molecular sieve increases, the molecular sieve gradually becomes saturated, and its ability to absorb moisture decreases until it can no longer absorb moisture, resulting in a decrease in the gas drying effect.
[0003] In existing technologies, to improve the gas drying effect, backflushing with drying gas is usually used, which uses the reverse airflow to remove the moisture adsorbed inside the molecular sieve. However, using only the reverse airflow for backflushing can only remove a limited amount of moisture, resulting in a low molecular sieve regeneration rate. In current technologies, high-temperature reverse airflow is used for backflushing to increase the temperature of the molecular sieve itself, thereby improving the regeneration rate. However, the contact time between the high-temperature gas and the molecular sieve is short, which can easily cause uneven temperature inside the molecular sieve, and the molecular sieve heats up slowly, which is not conducive to the rapid precipitation of moisture inside the molecular sieve, resulting in a low molecular sieve regeneration efficiency.
[0004] In summary, how to solve the problem of low regeneration rate and efficiency of molecular sieves is a problem that urgently needs to be solved by those skilled in the art. Utility Model Content
[0005] In view of this, the purpose of this utility model is to provide a heating drying cylinder inner liner that directly uses a heating sleeve as a container to hold molecular sieves. When molecular sieve regeneration is required, the heating sleeve can directly heat the molecular sieves, quickly increase the temperature of the molecular sieves, reduce heating dead zones, and promote the rapid precipitation of moisture inside the molecular sieves, thereby improving the regeneration rate and efficiency of the molecular sieves.
[0006] Another objective of this invention is to provide a drying device that includes the aforementioned heating and drying cylinder inner liner, possessing the same technical features and capable of solving the same technical problems.
[0007] Another objective of this invention is to provide a vehicle suspension air supply system that includes the aforementioned heating and drying cylinder inner liner or the aforementioned drying device, possessing the same technical features and capable of solving the same technical problems.
[0008] To achieve the above objectives, this utility model provides the following technical solution:
[0009] A heating and drying cylinder inner liner, comprising:
[0010] A heating sleeve, with its bottom and top sealed and fixedly connected with end caps, the end caps being provided with vent holes for gas to enter and exit;
[0011] Molecular sieves are used to fill the interior of the heating sleeve.
[0012] The filter assembly includes at least two sets, and the two adjacent sets of the filter assembly divide the inner cavity of the heating sleeve into independent cavities. The molecular sieve is filled in the independent cavities, and a spring is provided between the end cap at at least one end and the adjacent filter assembly for pressing the combination of the filter assembly and the molecular sieve against the other end of the heating sleeve.
[0013] Preferably, the inner wall of the end cap is provided with an annular groove, and one end of the spring is engaged in the annular groove.
[0014] Preferably, the filter assembly includes a baffle and a filter pad, the filter pad being laid on the surface of the baffle, and the baffle having a plurality of air passage holes.
[0015] Preferably, the end cap includes a top cap and a bottom cap;
[0016] The spring is disposed between the top cover and the filter assembly located at the top;
[0017] A drain rack is provided between the bottom cover and the filter assembly located at the bottom.
[0018] Preferably, the drain rack has a funnel structure;
[0019] The large-diameter end of the drain rack faces upward, and its inner diameter is equal to that of the heating sleeve.
[0020] The opening at the smaller diameter end of the drain rack faces downwards, and the opening at the smaller diameter end is connected to the air hole of the bottom cover.
[0021] Preferably, the drain rack has a funnel structure;
[0022] The large-diameter end of the drain rack faces upward, and its inner diameter is equal to that of the heating sleeve.
[0023] The small-diameter end of the drain rack faces downwards, and the opening of the small-diameter end is connected to the drain hole at the lowest point of the inner wall of the bottom cover.
[0024] Furthermore, the air vents of the bottom cover are located at a position other than the lowest point on the inner wall of the bottom cover.
[0025] Preferably, the heating sleeve integrates a temperature sensor for detecting the temperature inside the heating sleeve.
[0026] A drying apparatus comprising the inner liner of a heating drying cylinder as described in any one of the preceding claims.
[0027] Preferably, it also includes a heat-insulating shell, the inner liner of the heating and drying cylinder is disposed in the internal cavity of the heat-insulating shell, and the two ends of the heat-insulating shell are provided with through holes, the through holes being used to pass through and connect the pipes of the air holes.
[0028] Preferably, the top of the insulation shell is an open structure, and a top cover plate is fixedly provided at the open end of the insulation shell;
[0029] A wave spring is provided between the top end of the heating sleeve and the upper cover plate to press the heating sleeve tightly against the bottom of the insulation shell.
[0030] A vehicle suspension air supply system includes the heating and drying cylinder liner described in any one of the above descriptions or the drying device described in any one of the above descriptions.
[0031] The heating and drying cylinder inner liner provided by this utility model has at least the following beneficial effects compared with the prior art:
[0032] 1. Using a heating sleeve as a container to directly hold the molecular sieve ensures that the molecular sieve is heated evenly during heating, which helps to improve the regeneration rate of the molecular sieve. At the same time, the heating sleeve is sealed and fixedly connected to end caps at both ends, meaning that the heating sleeve can be used as a pressure vessel to replace the original pressure vessel of the drying equipment, thereby reducing production costs.
[0033] 2. Using a heating sleeve directly as a heating component helps to increase the temperature rise rate of the molecular sieve compared to heating the molecular sieve with high-temperature airflow, thereby improving the regeneration efficiency of the molecular sieve.
[0034] The drying device provided by this utility model includes the aforementioned heated drying cylinder inner liner and has the same beneficial effects.
[0035] The vehicle suspension air supply system provided by this utility model includes the aforementioned heated drying cylinder liner or the aforementioned drying device, and has the same beneficial effects. Attached Figure Description
[0036] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.
[0037] Figure 1 This is a schematic diagram of the structure of the inner liner of the heating and drying cylinder provided by this utility model;
[0038] Figure 2 A cross-sectional view of the inner liner of the heating and drying cylinder provided by this utility model;
[0039] Figure 3 This is a schematic diagram of the drying device provided by this utility model;
[0040] Figure 4 This is a cross-sectional view of the drying device provided by this utility model.
[0041] Figures 1-4 middle:
[0042] 1. Heating sleeve; 2. Molecular sieve; 3. Top cover; 4. Bottom cover; 5. Filter assembly; 6. Drain rack; 7. Spring; 8. Insulation shell; 9. Top cover plate; 10. Wave spring. Detailed Implementation
[0043] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0044] The core of this utility model is to provide a heating drying cylinder inner liner, which directly uses a heating sleeve as a container to hold molecular sieves. When molecular sieve regeneration is required, the heating sleeve can directly heat the molecular sieves, quickly increase the temperature of the molecular sieves, reduce heating dead zones, and promote the rapid precipitation of moisture inside the molecular sieves, thereby improving the regeneration rate and efficiency of the molecular sieves.
[0045] Another core aspect of this utility model is to provide a drying device that includes the aforementioned heating and drying cylinder inner liner, possessing the same technical features and capable of solving the same technical problems.
[0046] Another core aspect of this utility model is to provide a vehicle suspension air supply system that includes the aforementioned heating and drying cylinder inner liner or the aforementioned drying device, possessing the same technical features and capable of solving the same technical problems.
[0047] Please refer to Figure 1 and Figure 2 A heating and drying cylinder inner liner, comprising:
[0048] Heating sleeve 1, with end caps sealed and fixedly connected to its bottom and top respectively, and the end caps are provided with air holes for gas to enter and exit.
[0049] Molecular sieve 2 is filled inside the heating sleeve 1;
[0050] The filter assembly 5 includes at least two sets, and the two adjacent sets of filter assemblies 5 divide the inner cavity of the heating sleeve 1 into independent cavities. The molecular sieve 2 is filled in the independent cavities, and a spring 7 is provided between the end cap at at least one end and the adjacent filter assembly 5 for pressing the combination of the filter assembly 5 and the molecular sieve 2 against the other end of the heating sleeve 1.
[0051] like Figure 2 As shown, the heating sleeve 1 is directly used as a pressure vessel, and the molecular sieve 2 is directly filled inside the heating sleeve 1. Both ends of the heating sleeve 1 are provided with air holes. In actual use, the humid airflow enters from the air hole at the bottom of the heating sleeve 1 and comes into contact with the molecular sieve 2. After the moisture in the airflow is adsorbed by the molecular sieve 2, the dry airflow is discharged from the air hole at the top of the heating sleeve 1. When the molecular sieve 2 is saturated with adsorption, the heating sleeve 1 performs work to heat up the molecular sieve 2, thereby causing the water inside the molecular sieve 2 to be separated and discharged with the gas flowing through the molecular sieve 2, thus achieving high-efficiency regeneration of the molecular sieve 2.
[0052] Meanwhile, the interior of the heating sleeve 1 is divided into independent spaces by the filter assembly 5, and the molecular sieve 2 is filled in the independent space, which helps to prevent the molecular sieve 2 from leaking from the pores. The combination of the filter assembly 5 and the molecular sieve 2 is fixed to one end inside the heating sleeve 1 by the spring 7, thereby fixing the relative position between the combination and the heating sleeve 1 and preventing the combination from shaking inside the heating sleeve 1 due to the airflow.
[0053] In some embodiments, the inner wall of the end cap is provided with an annular groove, and one end of the spring 7 is engaged in the annular groove.
[0054] like Figure 2 As shown, the end cap is provided with an annular groove, and the center line of the annular groove overlaps with the center line of the end cap. The spring 7 is preferably a helical spring, one end of which is engaged in the annular groove, and the other end abuts against the end face of the filter assembly 5, thereby fixing the combination of the filter assembly 5 and the molecular sieve 2 to the other end of the heating sleeve 1. The spring 7 is restricted by the annular groove, so that it cannot move in a direction perpendicular to its own center line, thereby ensuring that the spring 7 and the heating sleeve 1 have a relatively stable relative positional relationship.
[0055] In some embodiments, the filter assembly 5 includes a baffle and a filter pad, the filter pad being laid on the surface of the baffle, and the baffle having a plurality of air passage holes.
[0056] like Figure 2 The filter assembly 5 includes a flexible filter pad and a baffle with several air passage holes. The filter pad is laid on the surface of the baffle. The rigidity of the baffle can prevent the filter pad from wrinkling due to airflow, which would affect the air passage efficiency.
[0057] In some embodiments, the end cap includes a top cap 3 and a bottom cap 4;
[0058] A spring 7 is provided between the top cover 3 and the filter assembly 5 located at the top;
[0059] A drain rack 6 is provided between the bottom cover 4 and the filter assembly 5 located at the bottom.
[0060] like Figure 2 As shown, the spring 7 is placed at the upper end of the molecular sieve 2 and the filter assembly 5, that is, the assembly is fixed at the bottom of the heating sleeve 1, thereby causing the center of gravity of the inner liner of the heating drying cylinder to shift downward.
[0061] Furthermore, a drain rack 6 is installed below the assembly, allowing water droplets that condense inside the molecular sieve 2 to flow out under the action of the drain rack 6 and separate from the molecular sieve 2, thus preventing the molecular sieve 2 from being soaked in water for a long time and causing a decrease in drying effect.
[0062] Preferably, the drain rack 6 has a funnel structure;
[0063] The large-diameter end of the drain rack 6 faces upward, and its inner diameter is equal to that of the heating sleeve 1.
[0064] The small diameter end of the drain rack 6 faces downwards, and the opening at the small diameter end is connected to the air hole of the bottom cover 4.
[0065] The drain rack 6 adopts a funnel structure to collect the condensate flowing out of the molecular sieve 2 and collect it into the air hole of the bottom cover 4. Then, it is discharged to the outside of the heating sleeve 1 through the air inlet pipe, thereby reducing the amount of water accumulated in the heating sleeve 1. It is worth noting that the air supply of the air inlet pipe should be stopped when the condensate is discharged.
[0066] In some embodiments, the drain rack 6 is a funnel structure;
[0067] The large-diameter end of the drain rack 6 faces upward, and its inner diameter is equal to that of the heating sleeve 1.
[0068] The small diameter end of the drain rack 6 faces downward, and the opening of the small diameter end is connected to the drain hole at the lowest point of the inner wall of the bottom cover 4.
[0069] Furthermore, the air vents of the bottom cover 4 are located at a position other than the lowest point on the inner wall of the bottom cover 4.
[0070] By designing the bottom cover 4, the air vent of the bottom cover 4 is located at a non-lowest point on the inner wall, while the water flow in the drain rack 6 can flow into the drain hole located at the lowest point on the inner wall of the bottom cover 4, thereby achieving the separation of airflow and water flow, that is, air intake and drainage do not affect each other.
[0071] It is worth noting that the drain hole should be closed during airflow drying.
[0072] In some embodiments, a temperature sensor is integrated inside the heating sleeve 1 to detect the temperature inside the heating sleeve 1.
[0073] By integrating a temperature sensor inside the heating sleeve 1, the temperature of the heating sleeve 1 and its interior can be monitored in real time, which facilitates precise control of the temperature of the molecular sieve 2, keeping it within the temperature range for efficient water precipitation over a long period of time, thereby improving the regeneration rate and efficiency of the molecular sieve 2.
[0074] In addition to the heating and drying cylinder liner disclosed in the above embodiments, this utility model also provides a drying device including the above-mentioned heating and drying cylinder liner.
[0075] The drying device also includes a heat-insulating shell 8, and the inner liner of the heating drying cylinder is disposed in the internal cavity of the heat-insulating shell 8. The heat-insulating shell 8 has through holes at both ends, which are used to pass through pipes that connect to the air holes.
[0076] like Figure 3 and Figure 4 As shown, the inner liner of the heating and drying cylinder is wrapped with an insulation shell 8 to slow down heat loss and thus reduce energy consumption during the regeneration of molecular sieve 2.
[0077] Furthermore, the top and bottom of the insulation shell 8 are provided with through holes corresponding to the air holes, through which ventilation pipes connecting the air holes pass.
[0078] Meanwhile, in actual use, the use of the inner liner of the heating drying cylinder enables high and low pressure zoning within the drying device. High-pressure gas passes directly through the inner liner of the heating drying cylinder and does not enter the low-pressure zone between the outer wall of the inner liner and the inner wall of the insulation shell 8. The power supply line and / or the signal line of the temperature sensor of the heating sleeve 1 are arranged in the low-pressure zone, thus avoiding the influence of high-pressure gas on the power supply line and signal line, thereby improving the stability of the drying device.
[0079] In some embodiments, the top of the insulation shell 8 is an open structure, and an upper cover plate 9 is fixedly provided at the open end of the insulation shell 8.
[0080] A wave spring 10 is provided between the top end of the heating sleeve 1 and the upper cover plate 9 to press the heating sleeve 1 tightly against the bottom of the heat preservation shell 8.
[0081] like Figure 4 As shown, the heat insulation shell 8 includes a cylinder body and an upper cover plate 9. The split design makes it easy to put the inner liner of the heating and drying cylinder into the heat insulation shell 8, improving the convenience of assembly.
[0082] Meanwhile, the inner liner of the heating and drying cylinder is placed at the bottom of the insulation shell 8, and a wave spring 10 is set between the top of the inner liner of the heating and drying cylinder and the upper cover plate 9 to fix the inner liner of the heating and drying cylinder, so that it has a relatively stable relative positional relationship with the insulation shell 8.
[0083] In some embodiments, a threaded air nozzle is fixedly connected to the air hole of the bottom cover 4 to facilitate the connection of the air pipe. The air nozzle passes through the through hole at the bottom of the insulation shell 8, and a sealing ring is provided between the outer wall of the air nozzle and the inner wall of the through hole to prevent external impurities from entering the insulation shell 8.
[0084] An air nozzle is also fixedly installed at the air hole of the top cover 3. The air nozzle passes through the through hole of the upper cover plate 9, and a sealing ring is installed between the outer wall of the air nozzle and the inner wall of the through hole to prevent external impurities from entering the insulation shell 8.
[0085] In addition to the heating and drying cylinder liner and drying device disclosed in the above embodiments, this utility model also provides a vehicle suspension air supply system including the above-mentioned heating and drying cylinder liner or the above-mentioned drying device. For the structure of other parts of the vehicle suspension air supply system, please refer to the prior art, which will not be described in detail here.
[0086] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.
[0087] The heating and drying cylinder inner liner and drying device provided by this utility model have been described in detail above. Specific examples have been used to illustrate the principle and implementation of this utility model. The descriptions of the embodiments above are only for the purpose of helping to understand the method and core idea of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made to this utility model without departing from the principle of this utility model, and these improvements and modifications also fall within the protection scope of the claims of this utility model.
Claims
1. A heating and drying cylinder inner liner, characterized in that, include: Heating sleeve (1) has end caps sealed and fixedly connected to its bottom and top, and the end caps are provided with air holes for gas to enter and exit. Molecular sieve (2) is filled inside the heating sleeve (1); The filter assembly (5) includes at least two sets, and the two adjacent sets of the filter assembly (5) divide the inner cavity of the heating sleeve (1) into independent cavities. The molecular sieve (2) is filled in the independent cavity, and a spring (7) is provided between the end cap at at least one end and the adjacent filter assembly (5) for pressing the combination of the filter assembly (5) and the molecular sieve (2) against the other end of the heating sleeve (1).
2. The heating and drying cylinder inner liner according to claim 1, characterized in that, The inner wall of the end cap is provided with an annular groove, and one end of the spring (7) is engaged in the annular groove.
3. The inner liner of the heating and drying cylinder according to claim 1, characterized in that, The filter assembly (5) includes a baffle and a filter pad, the filter pad being laid on the surface of the baffle, and the baffle having a number of air passage holes.
4. The inner liner of the heating and drying cylinder according to claim 1, characterized in that, The end cap includes a top cap (3) and a bottom cap (4); The spring (7) is provided between the top cover (3) and the filter assembly (5) located at the top; A drain rack (6) is provided between the bottom cover (4) and the filter assembly (5) located at the bottom.
5. The inner liner of the heating and drying cylinder according to claim 4, characterized in that, The drain rack (6) has a funnel structure; The large-diameter end of the drain rack (6) faces upward, and its inner diameter is equal to that of the heating sleeve (1). The small diameter end of the drain rack (6) faces downwards, and the opening of the small diameter end is connected to the air hole of the bottom cover (4).
6. The inner liner of the heating and drying cylinder according to claim 4, characterized in that, The drain rack (6) has a funnel structure; The large-diameter end of the drain rack (6) faces upward, and its inner diameter is equal to that of the heating sleeve (1). The small diameter end of the drain rack (6) faces downward, and the opening of the small diameter end is connected to the drain hole at the lowest point of the inner wall of the bottom cover (4). Furthermore, the air vent of the bottom cover (4) is located at a position other than the lowest point on the inner wall of the bottom cover (4).
7. The heating and drying cylinder inner liner according to any one of claims 1-6, characterized in that, The heating sleeve (1) is equipped with a temperature sensor for detecting the temperature inside the heating sleeve (1).
8. A drying apparatus, characterized in that, Includes the heating and drying cylinder inner liner as described in any one of claims 1-7.
9. The drying apparatus according to claim 8, characterized in that, It also includes a heat insulation shell (8), the inner liner of the heating and drying cylinder is disposed in the internal cavity of the heat insulation shell (8), and the heat insulation shell (8) has through holes at both ends, the through holes being used to pass through and connect the pipes of the air holes.
10. The drying apparatus according to claim 9, characterized in that, The top of the insulation shell (8) is an open structure, and the open end of the insulation shell (8) is fixedly provided with an upper cover plate (9). A wave spring (10) is provided between the top end of the heating sleeve (1) and the upper cover plate (9) to press the heating sleeve (1) against the bottom of the heat preservation shell (8).
11. A vehicle suspension air supply system, characterized in that, It includes the heating and drying cylinder liner as described in any one of claims 1-7 or the drying apparatus as described in any one of claims 8-10.