A hydrogen rapid regeneration adsorption tower

Abstract

This utility model relates to the field of hydrogen rapid regeneration adsorption tower technology, specifically disclosing a hydrogen rapid regeneration adsorption tower, including: an adsorption tower, multiple adsorption towers connected by equipment pipelines, a heat exchanger between two sets of adsorption towers for controlling the working time and sequence of the adsorption towers, and a detection module installed at the top of the adsorption tower to monitor the temperature inside the tower in real time through a temperature sensor and transmit the signal to the control system. A connection module is provided between the heat exchanger and the adsorption tower pipelines. The connection module realizes rapid pipeline switching through a linkage structure of wedge-shaped pressure blocks and valve plates, combined with a buffer spring to reduce mechanical wear. During operation, the detection module triggers the connection module to switch pipelines according to the temperature change rate, so that the adsorption towers alternately complete the adsorption and regeneration stages. The heat exchanger optimizes the regeneration efficiency through temperature gradient regulation. This utility model improves the adsorption and regeneration cycle efficiency and extends the equipment life through modular design and intelligent control.

Description

Technical Field

[0001] This utility model relates to the technical field of hydrogen rapid regeneration adsorption towers, specifically a hydrogen rapid regeneration adsorption tower. Background Technology

[0002] Microthermal adsorption towers are drying equipment based on the principles of pressure swing adsorption and temperature swing adsorption. They are widely used for moisture removal and gas purification in compressed air, hydrogen, and chemical industries. Their core feature is the regeneration of the adsorbent through external heating, making them suitable for scenarios with high drying precision requirements. Existing microthermal adsorption towers typically adopt a dual-tower alternating working mode. One set of adsorption towers completes the adsorption process under high pressure, while the other set regenerates and desorbs moisture from the adsorbent through heating, and then the working state is switched.

[0003] Although the microthermal adsorption tower has advantages in regeneration efficiency and energy consumption control, the existing structure still has the following technical problems: in the dual-tower alternating operation state, the adsorption tower after heating and regeneration needs to be cooled before it can adsorb again, which will interrupt the alternating cycle; the switching of mechanical valves has a response lag problem; and the temperature monitoring system is mostly discrete sampling, which cannot provide real-time feedback on the temperature gradient changes in the adsorption tower, resulting in inaccurate judgment of regeneration timing and affecting the utilization rate of adsorbent. To address these issues, we propose a hydrogen rapid regeneration adsorption tower. Utility Model Content

[0004] The purpose of this invention is to provide a hydrogen rapid regeneration adsorption tower to solve the problems mentioned in the background art, where the adsorption tower after heating and regeneration needs to be cooled before it can re-adsorb under the dual-tower alternating working state, the alternating cycle is interrupted, and the mechanical valve switching has a response lag.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a hydrogen rapid regeneration adsorption tower, comprising: an adsorption tower, wherein four adsorption towers are arranged, two adsorption towers are arranged as a group, a heat exchanger is provided between the two groups of adsorption towers, the heat exchanger controls the working time and sequence of the adsorption towers, a connection module is provided between the heat exchanger and the adsorption tower pipeline, the connection module controls the pipeline connection, a detection module is provided at the top of the adsorption tower, the detection module monitors the temperature inside the adsorption tower, and controls the connection module to switch the pipeline at a suitable temperature.

[0006] The connecting module includes a cylinder, a valve stem fixedly connected to the cylinder, a wedge-shaped pressure block fixedly connected to the end of the valve stem, a valve plate slidably connected to the wedge-shaped pressure block, a valve cover fixedly connected to the cylinder, a valve body fixedly connected to the valve cover, a valve seat fixedly connected to the bottom of the middle section of the valve body, a valve seat movably connected to the valve plate, a buffer spring fixedly connected to the rear of the valve plate, and a buffer spring fixedly connected to the valve stem.

[0007] The detection module includes a fixed base located at the top of the adsorption tower. The fixed base is threadedly fastened to a flange, and a temperature sensor is fixedly connected to the flange. A stud is threadedly connected to the flange, and the stud is threadedly connected to the fixed base.

[0008] A sealing ring is provided on the outer edge of the valve plate.

[0009] The valve plate has a buffer pad at the bottom of its rear end.

[0010] An alarm is installed on the outside of the temperature sensor.

[0011] This utility model has at least the following beneficial effects: In use, this utility model achieves efficient alternating operation of adsorption and regeneration processes through the modular design of the adsorption tower group and the heat exchanger, thereby improving the overall processing capacity of the system. The connection module adopts a linkage structure of wedge-shaped pressure blocks and valve plates, combined with the buffering effect of buffer springs, which not only ensures the speed and sealing of pipeline switching, but also effectively reduces mechanical wear and extends the service life of the equipment. The detection module monitors the temperature changes inside the adsorption tower in real time through temperature sensors, and dynamically adjusts the switching timing of the connection module in conjunction with the control system, avoiding the risk of adsorbent performance degradation or equipment overload due to abnormal temperature. The heat exchanger makes the regeneration process more stable and controllable through precise temperature gradient control. This adsorption tower ensures high adsorption efficiency while also having operational stability, convenient maintenance, and energy-saving and environmental protection characteristics. Attached Figure Description

[0012] Figure 1 This is a top view of the entire utility model; Figure 2 This is a schematic diagram of the connection module of this utility model; Figure 3 This is an internal view of the connection module of this utility model; Figure 4 This is a schematic diagram of the adsorption tower of this utility model; Figure 5 This is a schematic diagram of the detection module of this utility model; Figure 6 This is a schematic diagram of the operation process of this utility model: 1A adsorption, 1B heating regeneration, 2B adsorption, 2A cooling regeneration. Figure 7 This is a schematic diagram of the operation process of this utility model: 1A adsorption, 1B cooling regeneration, 2A adsorption, 2B heating regeneration. Figure 8 This is a schematic diagram of the operation process of this utility model: 1B adsorption, 1A heating regeneration, 2A adsorption, 2B cooling regeneration. Figure 9 This is a schematic diagram of the operation process of this utility model: 1B adsorption, 1A cooling regeneration, 2B adsorption, 2A heating regeneration.

[0013] In the diagram: 1. Adsorption tower; 2. Heat exchanger; 3. Connecting module; 31. Cylinder; 32. Valve stem; 33. Wedge-shaped pressure block; 34. Valve plate; 35. Valve cover; 36. Valve body; 37. Valve seat; 38. Buffer spring; 4. Detection module; 41. Fixing base; 42. Flange; 43. Temperature sensor; 44. Stud; 5. Sealing ring; 6. Buffer pad; 7. Alarm. Detailed Implementation

[0014] 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.

[0015] Example 1 Please see Figures 1 to 9 This utility model provides a technical solution: a hydrogen rapid regeneration adsorption tower, comprising: an adsorption tower 1, multiple adsorption towers 1 connected by equipment pipelines, two adsorption towers 1 forming a group, a heat exchanger 2 provided between the two groups of adsorption towers 1, the heat exchanger 2 controlling the working time and sequence of the adsorption towers 1, a connection module 3 provided between the heat exchanger 2 and the pipeline of the adsorption tower 1, the connection module 3 controlling the pipeline connection, and a detection module 4 provided at the top of the adsorption tower 1, the detection module 4 monitoring the temperature inside the adsorption tower 1, and controlling the connection module 3 to switch the pipeline at a suitable temperature.

[0016] Figures 6 to 9 In the diagram, 1A and 1B represent two units of the first adsorption tower, and 2A and 2B represent two units of the second adsorption tower.

[0017] In a specific embodiment, the adsorption tower 1 adopts a modular design, with each group containing two adsorption units that work alternately. These units form a circulation loop through equipment pipelines. The workflow is divided into an adsorption stage and a regeneration stage. When one adsorption tower 1 is in the adsorption state, the other group undergoes thermal regeneration through the heat exchanger 2. The heat exchanger 2 controls the switching cycle of the two adsorption towers 1 through a preset program. The working sequence is determined by the adsorbent saturation and temperature change parameters. When the detection module 4 detects that the temperature inside the current adsorption tower 1 reaches a preset threshold, the preset threshold is set according to the desorption temperature characteristics of the adsorbent and the system stability requirements. The temperature sensor 43 transmits the signal to the control system, and the control system drives the connection module 3 to perform pipeline switching operations.

[0018] The connecting module 3 includes a cylinder 31, a valve stem 32 is fixedly connected to the cylinder 31, a wedge-shaped pressure block 33 is fixedly connected to the end of the valve stem 32, a valve plate 34 is slidably connected to the wedge-shaped pressure block 33, a valve cover 35 is fixedly connected to the cylinder 31, a valve body 36 is fixedly connected to the valve cover 35, a valve seat 37 is fixedly connected to the bottom of the middle section of the valve body 36, and the valve seat 37 is movably connected to the valve plate 34. During pipeline switching, cylinder 31 drives valve stem 32 to move linearly, and wedge-shaped pressure block 33 pushes valve plate 34 towards valve seat 37 along the inclined surface of valve plate 34 to achieve valve port sealing or opening. When pipeline switching is required, compressed air is introduced into cylinder 31, which drives valve stem 32 to move downward. Wedge-shaped pressure block 33 presses valve plate 34 downward, and the bottom of valve plate 34 contacts valve seat 37. Valve plate 34 is pressed on valve seat 37 and slides to both sides to complete the sealing of valve seat 37. The whole process is completed quickly, ensuring no leakage during switching. Valve body 36 is made of high temperature resistant material, and valve seat 37 has a wear-resistant coating on its surface to reduce the coefficient of friction and improve sealing performance. A buffer spring 38 is fixedly connected to the rear of valve plate 34. The buffer spring 38 is fixedly connected to valve stem 32 to absorb the air pressure impact when valve stem 32 is raised, causing valve plate 34 to collide with valve stem 32, thus extending service life.

[0019] The detection module 4 includes a mounting base 41 located at the top of the adsorption tower 1. A flange 42 is threadedly fastened to the mounting base 41, and a temperature sensor 43 is fixedly connected to the flange 42. A stud 44 is also threaded onto the flange 42 and threadedly connected to the mounting base 41. The temperature sensor 43, through the flange 42 and the stud 44, forms a double-fixed structure, ensuring stable installation under high-temperature conditions. When the temperature inside the adsorption tower 1 rises due to the heat of adsorption, the temperature sensor 43 collects data in real time and transmits it to the control system. The control system determines whether to trigger the pipeline switching program of the connection module 3 based on the rate of temperature change. The detection module 4 and the connection module 3 communicate via a bus to ensure the system's dynamic response speed.

[0020] During operation, the adsorption towers 1 run alternately, while the heat exchanger 2 maintains the temperature gradient of the regenerated adsorption tower 1. After one set of adsorption towers 1 completes the adsorption operation, the heat exchanger 2 starts the heating function to bring the regenerated adsorption tower 1 to a suitable temperature for desorption and regeneration. At this time, the connection module 3 connects the adsorption tower 1 to the regeneration gas source pipeline and disconnects the connection to the raw material gas pipeline. After regeneration is completed, the heat exchanger 2 switches to cooling mode. After the temperature drops to the set value, the connection module 3 switches the pipeline again to allow the adsorption tower 1 to enter the next adsorption cycle. The entire process is from 1A adsorption 1B heating regeneration 2B adsorption 2A blowing cooling regeneration to 1A adsorption 1B blowing cooling regeneration 2A adsorption 2B heating regeneration, to 1B adsorption 1A heating regeneration 2A adsorption 2B blowing cooling regeneration, to 1B adsorption 1A blowing cooling regeneration 2B adsorption 2A heating regeneration. The temperature parameters are monitored in real time by the detection module 4 throughout the entire cycle to ensure accurate switching between the adsorption and regeneration stages, and the overall operating efficiency of the system is significantly improved.

[0021] Example 2 In this second embodiment, the other structures remain unchanged. The difference from the first embodiment is that the outer edge of the valve plate 34 is provided with a sealing ring 5 to ensure that even if the valve plate undergoes slight deformation in a high-temperature environment, it can still maintain a normal airtight effect. A buffer pad 6 is provided at the bottom rear end of the valve plate 34 to prevent the valve plate 34 from colliding and being damaged by the valve stem 32 when connecting the pipeline. An alarm 7 is provided on the outside of the temperature sensor to detect abnormal working temperature in the adsorption tower and issue an audible and visual alarm to reduce the probability of operational accidents.

[0022] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0023] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A hydrogen rapid regenerative adsorption column comprising: An adsorption tower is characterized in that: four adsorption towers are provided, two adsorption towers are arranged as a group, a heat exchanger is provided between the two groups of adsorption towers, the heat exchanger controls the working time and sequence of the adsorption towers, a connection module is provided between the heat exchanger and the adsorption tower pipeline, the connection module controls the pipeline connection, and a detection module is provided at the top of the adsorption tower, the detection module monitors the temperature inside the adsorption tower and controls the connection module to switch the pipeline at a suitable temperature.

2. The hydrogen rapid regeneration adsorption tower according to claim 1, characterized in that: The connection module includes a cylinder, a valve stem fixedly connected to the cylinder, a wedge-shaped pressure block fixedly connected to the end of the valve stem, a valve plate slidably connected to the wedge-shaped pressure block, a valve cover fixedly connected to the cylinder, a valve body fixedly connected to the valve cover, a valve seat fixedly connected to the bottom of the middle section of the valve body, the valve seat being movably connected to the valve plate, a buffer spring fixedly connected to the rear of the valve plate, and the buffer spring being fixedly connected to the valve stem.

3. The hydrogen rapid regeneration adsorption tower according to claim 1, characterized in that: The detection module includes a fixed base located at the top of the adsorption tower. The fixed base is threadedly fastened to a flange, and a temperature sensor is fixedly connected to the flange. A stud is threadedly connected to the flange, and the stud is threadedly connected to the fixed base.

4. The hydrogen rapid regeneration adsorption tower according to claim 2, characterized in that: A sealing ring is provided on the outer edge of the valve plate.

5. The hydrogen rapid regeneration adsorption tower according to claim 2, characterized in that: A buffer pad is provided at the bottom rear end of the valve plate.

6. The hydrogen rapid regeneration adsorption tower according to claim 3, characterized in that: An alarm is installed on the outside of the temperature sensor.

Images