A packing compression device for a packed column

Abstract

The utility model discloses a kind of packing compression devices for packing tower, including tower body unit, compression unit and control unit.Tower body unit adopts cylinder structure, and outer tower wall and inner support ring are arranged inside.Compression unit is set in the inside of tower body unit by support frame, including compression grid, elastic compression ring and displacement sensor.Control unit is fixed on the side wall of tower body, and includes pressure detection module, signal processor and drive controller.When equipment operates, compression grid covers packing layer, elastic compression ring provides initial compression force, displacement sensor monitors packing layer height change, and control unit dynamically adjusts compression force according to analysis result.

Description

Technical Field

[0001] This utility model relates to the field of chemical separation equipment technology, and in particular to a packing compression device for packed towers. Background Technology

[0002] In current chemical process industries, packed towers are widely used as key mass transfer and separation equipment in various gas-liquid contact processes. Conventional packed towers are prone to packing loosening and floating under countercurrent gas-liquid two-phase operation, affecting the uniformity of gas-liquid distribution within the tower and leading to a decrease in mass transfer efficiency. Existing packed tower clamping devices mostly employ grid plate counterweights or spring pressure ring structures, resulting in uneven clamping force distribution and limited adjustment range. Traditional clamping device designs struggle to adapt to the dynamic changes in the packing layer during operation, easily causing packing fluidization or channeling phenomena when gas velocity fluctuates. Existing clamping measures often rely on increasing counterweights or spring preload, resulting in bulky structures and high requirements for the tower support structure. Furthermore, conventional clamping structures struggle to achieve coordinated control of uniform pressure distribution and dynamic compensation, maintaining the designed clamping effect only under static conditions. Therefore, it is necessary to develop a packing clamping device for packed towers to address the technical problems of insufficient adaptability of existing clamping devices and uneven pressure distribution leading to decreased packing layer stability. Utility Model Content

[0003] The purpose of this utility model is to provide a packing compression device for packed towers, which solves the problems mentioned in the background art.

[0004] This invention is implemented as follows: a packing clamping device for a packed tower includes a tower body unit, a clamping unit, and a control unit. The tower body unit adopts a cylindrical structure. The clamping unit is installed inside the tower body unit via a support frame. The control unit is fixed to the side wall of the tower body unit.

[0005] The tower unit comprises an outer tower wall and an inner support ring. The outer tower wall is made of stainless steel. The inner support ring is welded to the inner wall of the tower unit. The clamping unit includes a clamping grid plate, an elastic pressure ring, and a displacement sensor. The clamping grid plate is hinged to the surface of the support frame. The elastic pressure ring is fitted onto the edge of the clamping grid plate. The displacement sensor is embedded in the bottom surface of the clamping grid plate. The control unit includes a pressure detection module, a signal processor, and a drive controller. The pressure detection module is soldered to the control unit circuit board. The signal processor is integrated inside the control unit. The drive controller is connected to the clamping unit via wiring.

[0006] During equipment operation, the clamping grid covers the packing layer, and the elastic pressure ring provides the initial clamping force. A displacement sensor monitors changes in the packing layer height in real time. The pressure detection module and signal processor work together to analyze the clamping status, and the drive controller dynamically adjusts the clamping force based on the analysis results.

[0007] As a further improvement, the clamping grid plate features a zoned clamping structure. This structure includes a central clamping plate and edge clamping plates. The central clamping plate uses a circular grid. The edge clamping plates are connected to the periphery of the central clamping plate via connecting rods. This zoned clamping structure enables differentiated clamping in different areas, improving the uniformity of pressure distribution.

[0008] As a further improvement, the elastic pressure ring features a composite elastic layer. This composite elastic layer comprises a stainless steel spring layer and a rubber buffer layer. The stainless steel spring layer is 10 mm thick. The rubber buffer layer is adhered to the surface of the spring layer using an adhesive. The composite elastic layer provides stable elastic support, adapting to dynamic changes in the packing layer. As a further improvement, the tower unit features a guide and limiting structure. This guide and limiting structure includes a guide post, a limiting sleeve, and a locating pin. The guide post is vertically welded to the inner wall of the tower unit. The limiting sleeve is fitted over the guide post. The locating pin penetrates the side wall of the limiting sleeve. The guide and limiting structure ensures the vertical movement of the clamping unit and prevents skewing or jamming.

[0009] As a further improvement, the control unit is equipped with an adaptive pressure regulation system. This system includes a data acquisition unit, an analysis calculator, and a pressure regulator. The data acquisition unit connects to the various sensors. The analysis calculator is integrated into the signal processor. The pressure regulator is connected to the clamping unit via a hydraulic cylinder. The adaptive pressure regulation system automatically adjusts the clamping parameters according to changes in operating conditions, achieving precise pressure control.

[0010] As a further improvement, the clamping unit is equipped with an anti-loosening structure. The anti-loosening structure includes a lock nut, an anti-rotation washer, and a safety pin. The lock nut is screwed onto the end of the support bolt. The anti-rotation washer is positioned between the nut and the pressure plate. The safety pin passes through the side hole of the bolt and nut. The anti-loosening structure ensures that the connected components remain securely fastened under vibration.

[0011] As a further improvement, the tower unit is equipped with a quick-access maintenance structure. This structure includes a manhole, an observation window, and a test interface. The manhole is located on the side wall of the tower unit. The observation window is fitted into the manhole cover. The test interface is located on the side of the control unit. This quick-access maintenance structure facilitates internal inspection and maintenance, reducing operational complexity.

[0012] In summary, this utility model's packing compaction device for packed towers achieves uniform pressure distribution and dynamic stability control of the packing layer through a synergistic design of zoned compaction and adaptive pressure regulation. Its composite elastic layer and guiding and limiting structure significantly improve the device's adaptability and reliability, while anti-loosening and rapid maintenance further optimize the equipment's ease of maintenance and long-term operational stability. It effectively solves the technical problem of decreased packing layer stability caused by insufficient adaptability and uneven pressure distribution in traditional compaction devices. Attached Figure Description

[0013] Figure 1This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 This is a cross-sectional schematic diagram of the present invention;

[0015] Figure 3 This is a schematic diagram of the clamping unit of this utility model;

[0016] Figure 4 This is a bottom view of the clamping unit of this utility model;

[0017] Figure 5 This is a system block diagram of the present invention.

[0018] Explanation of reference numerals in the attached figures:

[0019] 1. Tower body unit; 2. Clamping unit; 3. Control unit; 4. Outer tower wall; 5. Inner support ring; 6. Clamping grid plate; 7. Elastic pressure ring; 8. Displacement sensor; 9. Pressure detection module; 10. Signal processor; 11. Drive controller; 12. Center pressure plate; 13. Edge pressure plate; 14. Stainless steel spring layer; 15. Rubber buffer layer; 16. Guide column; 17. Limit sleeve; 18. Positioning pin; 19. Data acquisition unit; 20. Analytical calculator; 21. Pressure regulator; 22. Locking nut; 23. Anti-rotation washer; 24. Safety pin; 25. Inspection manhole; 26. Observation window; 27. Test interface.

[0020] Detailed Description of the Utility Model

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Those skilled in the art should understand that the embodiments described below are only some, not all, of the embodiments of the present utility model. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0022] Example 1

[0023] Please see Figures 1 to 5 This utility model provides a packing compaction device for a packed tower, the overall structure of which mainly includes a tower body unit 1, a compaction unit 2, and a control unit 3. The tower body unit 1 serves as the main structure of the packed tower compaction device, providing internal space, support, and external protection; the compaction unit 2 is the core component for applying compaction force to the packing layer (not shown), aiming to maintain the stability and uniformity of the packing layer; the control unit 3 is responsible for intelligent management, status monitoring, and compaction force adjustment of the entire compaction process.

[0024] Specifically, the tower unit 1 adopts a cylindrical structure, with an overall external dimension typically ranging from approximately 800 mm to 4,000 mm in diameter and approximately 3,000 mm to 10,000 mm in height, designed to provide an installation environment compatible with the main body of an industrial packed tower (not shown). The tower unit 1 consists of an outer tower wall 4 and an inner support ring 5. The top of the tower unit 1 is equipped with a gas inlet and a liquid distributor (both not shown), while the bottom is equipped with a gas outlet and a liquid collector (both not shown). Its upper and lower end faces can be flanged or welded to the corresponding process pipelines and structures of the packed tower.

[0025] The outer tower wall 4 is made of stainless steel. Its main body is constructed from SUS304 or SUS316L food-grade stainless steel plates with a thickness of approximately six to twenty millimeters, manufactured through precision rolling, welding, and surface polishing or pickling passivation processes. It possesses extremely high strength, excellent corrosion resistance, and good adaptability to high-temperature and high-pressure environments. The outer tower wall 4 has a cylindrical structure, its height matching the height of the packing section of the packed tower (not shown), and is designed according to actual process requirements. The inner wall of the outer tower wall 4 has reserved positions for welding the inner support ring 5. As the external pressure-bearing and protective structure of the packed tower clamping device, the outer tower wall 4 ensures the structural integrity and safety of the equipment during chemical processes.

[0026] The inner support ring 5 is made of the same stainless steel as the outer tower wall 4. Its main body is manufactured from SUS304 or SUS316L stainless steel plates with a thickness of approximately 10 to 20 millimeters and a width of approximately 50 to 100 millimeters through bending and precision welding. The inner support ring 5 has a ring-shaped structure, with its outer diameter closely matching the inner diameter of the outer tower wall 4. It is firmly fixed to the inner wall of the tower unit 1 by ring welding, typically located 100 to 300 millimeters above the packing layer (not shown), aiming to provide a horizontal and stable support surface for the clamping unit 2. The surface of the inner support ring 5 is usually smoothed to ensure the installation accuracy of the support frame (not shown). The inner support ring 5 bears the weight of the clamping unit 2 and the clamping force it applies to the packing layer (not shown), uniformly transmitting these forces to the outer tower wall 4, thereby ensuring the overall stability of the internal structure of the packed tower.

[0027] The clamping unit 2 is installed inside the tower body unit 1 via a support frame (not shown, made of stainless steel angle steel, channel steel, or plate, and fixed to the surface of the inner support ring 5 by bolts or welding). The main body of the support frame is a ring or multi-point beam structure with high strength, sufficient to withstand the weight of the clamping grid plate 6 and the applied clamping force, while ensuring the uniformity of force transmission. The clamping unit 2 is the core system in the packed tower clamping device that applies clamping force to the packing layer, and it includes a clamping grid plate 6, several elastic pressure rings 7, and several displacement sensors 8.

[0028] The clamping grid plate 6 is made of stainless steel, with its main body manufactured from SUS304 or SUS316L stainless steel plates with a thickness of approximately 5 to 10 millimeters through laser cutting, stamping, and welding processes. The clamping grid plate 6 has a circular or polygonal mesh structure, with its outer diameter slightly smaller than the inner diameter of the tower unit 1. The mesh size is typically 20 mm x 20 mm to 50 mm x 50 mm, allowing free passage of gas and liquid while applying uniform pressure to the packing layer (not shown). The clamping grid plate 6 is mounted to the surface of the support frame (not shown) via several precision hinges (made of stainless steel, with pin diameters of approximately 10 to 15 mm). These hinges allow the clamping grid plate 6 to move freely up and down vertically and can be slightly adjusted according to changes in the height of the packing layer, rotating flexibly without jamming. The mesh edges of the clamping grid plate 6 are typically chamfered to avoid scratching or damaging the packing.

[0029] The elastic pressure ring 7 is made of high-elasticity stainless steel helical spring (e.g., SUS304 or SUS316L) or corrosion-resistant rubber elastomer (e.g., fluororubber FKM). Its main body is annular or segmented annular structure, and its material wire diameter or cross-sectional diameter is approximately ten to twenty millimeters. The elastic pressure ring 7 is fitted onto the edge of the clamping grid plate 6, typically located in the annular gap between the clamping grid plate 6 and the outer tower wall 4, and it contacts both the clamping grid plate 6 and the inner wall of the outer tower wall 4. When the clamping grid plate 6 descends, the elastic pressure ring 7 applies an initial, continuous elastic clamping force to the packing layer (not shown), compensating for possible settlement of the packing layer during operation and absorbing some vibration energy, thereby maintaining the stability of the packing layer structure.

[0030] The displacement sensor 8 employs a high-precision linear displacement sensor (e.g., Hall effect displacement sensor, eddy current displacement sensor, or ultrasonic displacement sensor), with a measurement range of approximately 0 mm to 500 mm and a measurement accuracy of 0.1 mm to 1.0 mm. The displacement sensor 8 is embedded in the bottom surface of the clamping grid plate 6, typically located at multiple key positions around the periphery of the clamping grid plate 6. Its probe (not shown) points downwards towards the top of the packing layer (not shown), and it is connected to the control unit 3 via a corrosion-resistant and waterproof enclosure and shielded signal lines. The displacement sensor 8 monitors the precise vertical displacement of the clamping grid plate 6 relative to the inner support ring 5 (or the bottom of the tower body) in real time, indirectly reflecting the height change or settlement of the packing layer (not shown).

[0031] The control unit 3 is fixed to the side wall of the tower unit 1, typically in a position easily observed and operated by the operator, for example, fixed to the outside of the outer tower wall 4 by a dedicated bracket (not shown). The control unit 3 is the intelligent control core of the entire packed tower packing compaction device, and its overall dimensions are typically approximately 150 mm to 250 mm in length, 100 mm to 150 mm in width, and 50 mm to 80 mm in height. The outer casing of the control unit 3 is made of waterproof and corrosion-resistant engineering plastics (e.g., PC / ABS alloy) or stainless steel, with a good protection rating (e.g., IP65 or IP66). The control unit 3 includes a pressure detection module 9, a signal processor 10, and a drive controller 11.

[0032] The pressure detection module 9 employs a high-precision piezoresistive or capacitive pressure sensor, typically with a measurement range of 0 Pascal to 500 Pascals and a measurement accuracy of ±0.5%. The pressure detection module 9 is soldered to the circuit board of the control unit 3 via SMT (Surface Mount Technology) and connected to the force-bearing point of the clamping unit 2, such as the local pressure area below the clamping grid 6, via a corrosion-resistant probe (not shown) or a pressure-conducting tube (not shown), or indirectly measures the clamping force via a force sensor (not shown) integrated within the clamping mechanism. The pressure detection module 9 acquires real-time data on the actual pressure applied by the clamping grid 6 to the filler layer (not shown), converting it into analog or digital electrical signals.

[0033] The signal processor 10 employs a high-performance, low-power embedded microcontroller (e.g., an ARM Cortex-M series processor) with a main frequency of 200 MHz to 400 MHz, possessing powerful real-time data processing capabilities and rich communication interfaces. The signal processor 10 is integrated within the control unit 3 and implemented via PCB board soldering. The signal processor 10 receives displacement data from the displacement sensor 8 and pressure data from the pressure detection module 9, executes complex control algorithms (e.g., PID control, fuzzy logic control, or expert systems), collaboratively analyzes the clamping state, and determines the height change of the packing layer (not shown) and the required clamping force adjustment.

[0034] The drive controller 11 employs a servo motor driver, a hydraulic proportional valve driver, or a pneumatic proportional valve driver, with a rated output power of approximately 50 to 200 watts and a rated voltage of 220 volts AC or 24 volts DC. The drive controller 11 is connected to the clamping unit 2 via a high-strength shielded circuit (particularly if the clamping unit 2 includes an active adjustment mechanism, such as a hydraulic cylinder or an electric push rod, as described in Embodiment 5). The drive controller 11 receives adjustment commands from the signal processor 10 and precisely controls the movement of the clamping unit 2 to achieve dynamic adjustment of the clamping force on the packing layer (not shown).

[0035] During equipment operation, the clamping grid 6, through its own gravity and the initial elastic force applied by the elastic pressure ring 7, covers the packing layer (not shown) and applies an initial clamping force to the packing layer. The elastic pressure ring 7 is fitted around the edge of the clamping grid 6, and its function is to provide a flexible buffer between the clamping grid 6 and the tower wall, and to ensure the uniform distribution of the clamping force at the edge of the clamping grid 6. The displacement sensor 8 monitors the precise vertical displacement of the clamping grid 6 relative to the inner support ring 5 (or fixed reference surface) inside the tower body in real time, which accurately reflects the real-time height change of the packing layer (not shown). The pressure detection module 9 collects the actual pressure data applied by the clamping grid 6 to the packing layer (not shown) in real time. The pressure detection module 9 and the signal processor 10 work together to analyze these clamping state data. For example, the signal processor 10 will determine whether the current clamping state meets the process requirements or whether there is a risk of packing fluidization or channeling based on the packing layer settlement detected by the displacement sensor 8 and the actual clamping force fed back by the pressure detection module 9. The drive controller 11 dynamically adjusts the clamping force of the clamping unit 2 based on the analysis results of the signal processor 10. For example, when excessive settling of the packing layer is detected, resulting in insufficient clamping force, the drive controller 11 instructs the actuator (e.g., hydraulic cylinder or electric push rod) of the clamping unit 2 to increase the downward pressure; when excessive clamping force is detected, the pressure is appropriately reduced. The entire structural design aims to ensure that the packing layer maintains a uniform and stable clamping force under dynamic changes during operation (e.g., thermal expansion, cold contraction, gas load fluctuations), thereby avoiding packing fluidization and channeling phenomena, and improving the mass transfer efficiency and operational stability of the packed tower.

[0036] Example 2

[0037] In another embodiment of this utility model, the pressing grid plate 6 is provided with a zoned pressing structure to achieve differentiated pressing in different areas and improve the uniformity of pressure distribution. Its structure is basically the same as in Embodiment 1, and will not be described again here. Specifically, the zoned pressing structure includes a central pressing plate 12 and several edge pressing plates 13. Please refer to... Figure 2The central pressure plate 12 is made of stainless steel and has a circular grid structure. Its outer diameter is approximately 50% to 70% of the diameter of the pressure grid plate 6, and its thickness is approximately 5 to 10 millimeters. The mesh size is similar to that of the main mesh of the pressure grid plate 6. The central pressure plate 12 is located in the central region of the pressure grid plate 6 and, as the main load-bearing component, directly applies pressure to the packing layer in the central region of the packed tower (not shown). The edge pressure plate 13 is made of stainless steel and has a ring-shaped or fan-shaped grid structure. Its width is approximately 50 to 100 millimeters, and its thickness is approximately 4 to 8 millimeters. The edge pressure plate 13 is connected to the periphery of the central pressure plate 12 by several connecting rods (made of stainless steel rods or flat steel, with a diameter or cross-sectional size of approximately 10 to 15 millimeters and a length of approximately 50 to 100 millimeters), evenly distributed in a ring, with an adjustable gap between them. The connecting rod connects the central pressure plate 12 and the edge pressure plate 13 via pins or bolts, allowing the edge pressure plate 13 to make slight displacements or angular adjustments relative to the central pressure plate 12 within a certain range. The partitioned clamping structure allows the clamping grid 6 to achieve differentiated clamping based on potential density variations, sedimentation differences, or uneven gas-liquid distribution within the packing layer of the packed tower (not shown) in the radial direction. By independently or in conjunction with the adjustment of the relative clamping force or position of the central pressure plate 12 and the edge pressure plate 13, the pressure distribution of the packing layer across the entire cross-section can be more precisely controlled. This structure significantly improves the uniformity of pressure exerted on the packing layer by the clamping grid 6, effectively solving the problem of uneven clamping force distribution in traditional clamping devices, thereby further optimizing the mass transfer efficiency of the packed tower.

[0038] Example 3

[0039] In another embodiment of this utility model, the elastic pressure ring 7 is provided with a composite elastic layer to provide stable elastic support and adapt to dynamic changes in the filler layer. Its structure is basically the same as in Embodiment 1, and will not be described again here. Specifically, the composite elastic layer includes a stainless steel spring layer 14 and a rubber buffer layer 15. Please refer to... Figure 3The stainless steel spring layer 14 is made of high-elasticity stainless steel helical springs, wave springs, or disc springs (e.g., SUS304 or SUS316L), with a wire diameter or sheet thickness of approximately two to five millimeters and a free height of approximately twenty to fifty millimeters. The stainless steel spring layer 14 has a ring-shaped or segmented ring structure, with a thickness of ten to twenty millimeters, serving as the main elastic element of the composite elastic layer and providing most of the elasticity and support. The rubber buffer layer 15 is made of corrosion-resistant, high-temperature-resistant fluororubber (FKM), ethylene propylene diene monomer (EPDM), or silicone rubber, with a ring-shaped or segmented ring structure and a thickness of approximately three to eight millimeters. The rubber buffer layer 15 is tightly bonded to the surface of the stainless steel spring layer 14 (usually the side in contact with the filler layer) using a high-performance industrial adhesive or hot vulcanization process, covering the entire surface of the spring layer. The rubber buffer layer 15 has good cushioning and shock absorption performance and wear resistance. The composite elastic layer allows the elastic pressure ring 7 to better adapt to dynamic changes in the packing layer (not shown) that may occur during operation, such as minor expansion, contraction, or local settlement, when applying clamping force to the packing layer (not shown). This structure not only provides a more flexible and uniform clamping force but also absorbs potential local vibrations in the packing layer, effectively reducing wear and breakage of the packing, thereby extending its service life and improving the operational stability of the packed tower.

[0040] Example 4

[0041] In another embodiment of this utility model, the tower unit 1 is provided with a guide and limiting structure to ensure the vertical movement of the pressing unit and prevent skewing and jamming. Its structure is basically the same as in Embodiment 1, and will not be described again here. Specifically, the guide and limiting structure includes several guide posts 16, several limiting sleeves 17, and several positioning pins 18. Please refer to... Figure 3The guide post 16 is made of solid stainless steel round or square bars (e.g., SUS304 or SUS316L), with a diameter of approximately 20 to 40 millimeters and a length of approximately 100 to 300 millimeters. The guide post 16 is vertically welded to the inner wall of the tower unit 1 via flange welding or direct welding, and is typically evenly distributed around the periphery of the pressing unit 2 above the inner support ring 5. Its top end is usually rounded and chamfered. The surface of the guide post 16 is typically precision machined and polished to reduce friction. The guide post 16 provides vertical guidance for the pressing unit 2 during its movement. The limiting sleeve 17 is made of wear-resistant engineering plastic (e.g., UHMW-PE, POM) or self-lubricating copper alloy. Its main body is a hollow cylindrical or square sleeve structure, with its inner diameter tightly fitted to the outer diameter of the guide post 16, typically with a radial clearance of 0.5 to 1.0 millimeters, and a length of approximately 80 to 200 millimeters. The limiting sleeve 17 is fitted over the guide post 16 and fixed to the clamping grid plate 6 or its support frame (not shown) of the clamping unit 2 by bolts or clips. The limiting sleeve 17 and the guide post 16 cooperate to form a low-friction, high-precision linear guide pair, which ensures the smooth movement of the clamping unit 2 in the vertical direction. The positioning pin 18 is made of hardened stainless steel, and its main body is cylindrical or conical, with a diameter of approximately five to eight millimeters. The positioning pin 18 penetrates the side wall of the limiting sleeve 17 and cooperates with a pre-set positioning hole (not shown) on the guide post 16. The side hole of the positioning pin 18 is usually formed by drilling after installation to ensure that the positioning pin 18 can be tightly inserted. When the clamping unit 2 moves to a specific height, the positioning pin 18 can be temporarily locked by inserting the positioning pin 18 to prevent the clamping unit 2 from moving accidentally. The guide and limiting structure, through the ingenious cooperation of the guide post 16, the limiting sleeve 17, and the positioning pin 18, ensures that the clamping unit 2 performs precise vertical lifting and lowering movements inside the packed tower (not shown), effectively preventing the clamping unit 2 from tilting, jamming, or rubbing against the tower wall due to airflow impact, packing layer fluctuations, or installation deviations. This structure significantly improves the smoothness and reliability of the clamping unit 2's movement, ensures the uniformity of clamping force transmission, and extends the service life of the device.

[0042] Example 5

[0043] In another embodiment of this utility model, the control unit 3 is equipped with an adaptive pressure regulation system for automatically adjusting the clamping parameters according to changes in working conditions, thereby achieving precise pressure control. Its structure is basically the same as in Embodiment 1, and will not be described again here. Specifically, the adaptive pressure regulation system includes a data acquisition unit 19, an analysis calculator 20, and a pressure regulator 21. Please refer to... Figure 2The data acquisition unit 19 employs a high-performance multi-channel analog-to-digital converter (ADC) module and a real-time clock (RTC), with a sampling rate of 100 to 1000 times per second and a resolution of 16 to 24 bits. The data acquisition unit 19 is connected to the displacement sensor 8, the pressure detection module 9, and other possible environmental or process sensors (e.g., gas differential pressure sensor for the packed tower, tower temperature sensor, not shown) via shielded signal lines to collect multi-dimensional process data and compaction status data in real time. The data acquisition unit 19 digitizes the collected data, adds a timestamp, and transmits it to the analysis calculator 20. The analysis calculator 20 is integrated within the signal processor 10 and is implemented using a high-performance embedded processor and complex adaptive control algorithms (e.g., fuzzy PID control based on packing characteristic models, expert systems, or machine learning algorithms). The analysis calculator 20 receives real-time and historical data from the data acquisition unit 19, combines it with the process parameters of the packed tower (not shown) (e.g., gas load, liquid load, operating temperature), calculates the real-time compaction force requirement of the packing layer (not shown), and predicts the trend of compaction parameter changes over a future period. The analysis calculator 20 dynamically adjusts the optimal clamping force setting and regulation strategy based on these analysis and prediction results. The pressure regulator 21 uses a high-precision hydraulic cylinder or electric push rod, with a rated thrust of approximately 5,000 to 20,000 Newtons and a stroke of approximately 500 to 1,000 millimeters. The pressure regulator 21 is connected to the clamping unit 2 (especially the clamping grid plate 6 or its support frame) via hydraulic lines (if a hydraulic cylinder) or power lines (if an electric push rod), and its piston rod (if a hydraulic cylinder) or push rod (if an electric push rod) is mechanically connected to the top of the clamping grid plate 6 or the support frame. The pressure regulator 21 receives clamping force adjustment commands from the analysis calculator 20 and precisely controls the piston position of the hydraulic cylinder or the extension and retraction of the electric push rod to achieve real-time and continuous adjustment of the packing layer clamping force. The adaptive pressure regulation system is set up by connecting various sensors through the data acquisition unit 19 to collect multi-dimensional data, performing intelligent analysis and prediction through the analysis calculator 20, and precisely adjusting the clamping parameters through the pressure regulator 21. The aforementioned structure enables the packing clamping device for packed towers to automatically and continuously adjust the clamping force according to the actual operating conditions of the packed tower (not shown) and the dynamic changes of the packing layer (not shown), achieving precise pressure control and avoiding over-clamping and under-clamping. This structure significantly improves the operational flexibility, mass transfer efficiency, and stability of the packed tower, effectively solving the problem of insufficient adaptability of traditional clamping devices.

[0044] Example 6

[0045] In another embodiment of this utility model, the clamping unit 2 is provided with an anti-loosening structure to ensure that the connecting components remain tight under vibration. Its structure is basically the same as in Embodiment 1, and will not be described again here. Specifically, the anti-loosening structure includes several locking nuts 22, several anti-rotation washers 23, and several safety pins 24. Please refer to... Figure 2 The locking nut 22 is made of high-strength alloy steel (e.g., grade 8.8 or 10.9 nuts) or nylon self-locking nut. Its main body is hexagonal or round, and its thread specification matches the thread section of the support bolt (not shown, used to fix the support frame of the clamping unit 2). The locking nut 22 is tightened by screwing onto the end of the support bolt, for example, by using double nuts for locking, slotted nuts with cotter pins, or nylon self-locking rings. During the operation of the packed tower (not shown), the locking nut 22 resists bolt loosening caused by external factors such as packing layer (not shown) fluctuations and airflow vibrations. The anti-rotation washer 23 is made of high-strength spring steel (e.g., 65Mn) or toothed anti-loosening washers. Its main body is round, its inner diameter matches the diameter of the support bolt, and its thickness is approximately one to three millimeters. The anti-rotation washer 23 is disposed between the locking nut 22 and the pressure plate (not shown, a component supporting the clamping unit 2), or between the nut and the support frame (not shown). Under pressure, the anti-rotation washer 23 generates a continuous elastic preload. Its toothed or slotted structure increases friction or embeds into the surface of the connector, effectively preventing relative rotation of the nut under vibration. The safety pin 24 is made of hardened stainless steel, with a cylindrical or tapered shape and a diameter of approximately four to six millimeters. The safety pin 24 passes through the side holes of the support bolt and the locking nut 22. The side holes of the safety pin 24 are typically formed by drilling after installation to ensure a tight insertion. The safety pin 24 provides final mechanical locking in the event of failure of the locking nut 22 and the anti-rotation washer 23 or extreme loosening, completely preventing the nut from rotating along the bolt axis and becoming loose. The anti-loosening structure is designed with multiple mechanical anti-loosening safeguards, achieved through the self-locking or counter-locking of the locking nut 22, the frictional or elastic pre-tightening of the anti-rotation washer 23, and the final locking of the safety pin 24. This structure ensures that the connection between the clamping unit 2 and the tower body unit 1 remains securely tight under long-term, complex, and high-frequency vibration conditions, effectively preventing displacement of the clamping unit 2 or a decrease in the stability of the packing layer (not shown) due to loosening, thereby guaranteeing the long-term stable operation and mass transfer efficiency of the packed tower.

[0046] Example 7

[0047] In another embodiment of this utility model, the tower unit 1 is provided with a quick-access maintenance structure to facilitate internal inspection and maintenance operations, reducing the difficulty of operation and maintenance. Its structure is basically the same as in Embodiment 1, and will not be described again here. Specifically, the quick-access maintenance structure includes a manhole 25, an observation window 26, and a test interface 27. Please refer to... Figure 1 The maintenance manhole 25 is made of stainless steel, with a circular or elliptical body, an outer diameter of approximately 400 mm to 600 mm, and a thickness of approximately 10 mm to 20 mm. The maintenance manhole 25 is welded to the side wall of the tower unit 1, typically located above or below the clamping unit 2, facilitating personnel access to the tower for inspection and maintenance. The maintenance manhole 25 is usually equipped with a hinged quick-opening manhole cover (not shown), which, when closed, is tightly sealed to the tower unit 1 via a flange connection and a sealing gasket (not shown). The observation window 26 is made of high-strength, corrosion-resistant tempered glass or quartz glass, with a diameter of approximately 100 mm to 200 mm and a thickness of approximately 10 mm to 20 mm. The observation window 26 is fitted into the center of the cover plate (not shown) of the maintenance manhole 25 via threaded clamping or a flange connection, and is equipped with a sealing gasket. The observation window 26 is usually fitted with a protective cover (not shown). Without opening the manhole, the observation window 26 allows operators to observe the surface condition of the clamping grid 6, the flatness of the filler layer (not shown), and whether there is any abnormal liquid accumulation or blockage inside, enabling non-invasive inspection. The test interface 27 uses an industrial-grade waterproof connector (e.g., M12 or M8 connector) or a USB Type-C interface, and its main body is made of high-strength brass or stainless steel. The test interface 27 is embedded in the side of the control unit 3 and is equipped with a waterproof and dustproof cover. The test interface 27 is connected to the signal processor 10 via an internal communication bus (e.g., UART, SPI, or CAN bus). The test interface 27 is used to connect to external diagnostic equipment (e.g., a handheld programmer or a host computer) to perform functional testing, parameter configuration, firmware upgrades, and data reading of the clamping device. The quick-access maintenance structure provides personnel access through the maintenance manhole 25, enables non-invasive observation through the observation window 26, and provides convenient testing methods through the test interface 27. The structure greatly simplifies the internal inspection and maintenance process of the packing compaction device for packed towers, shortens the operation and maintenance time, reduces the difficulty of on-site operation and maintenance and labor costs, and improves the availability and operational reliability of the equipment.

[0048] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A packing clamping device for a packed tower, comprising: The tower body unit (1), the clamping unit (2), and the control unit (3) are configured. The clamping unit (2) is installed inside the tower body unit (1) via a support frame. The control unit (3) is fixed to the side wall of the tower body unit (1). The tower body unit (1) is characterized by adopting a cylindrical structure, which includes an outer tower wall (4) and an inner support ring (5). The outer tower wall (4) is made of stainless steel. The inner support ring (5) is fixed to the inner wall of the tower body unit (1) by welding. The clamping unit (2) includes a clamping grid plate (6), an elastic pressure ring (7), and a displacement sensor (8). The clamping grid plate (6) is installed on the surface of the support frame via a hinge. The elastic pressure ring (7) is sleeved on the edge of the clamping grid plate (6). The displacement sensor (8) Embedded in the bottom surface of the clamping grid plate (6); the control unit (3) includes a pressure detection module (9), a signal processor (10), and a drive controller (11); the pressure detection module (9) is soldered to the circuit board of the control unit (3); the signal processor (10) is integrated inside the control unit (3); the drive controller (11) is connected to the clamping unit (2) through a line; the clamping grid plate (6) is provided with a partitioned clamping structure; the partitioned clamping structure includes a central clamping plate (12) and an edge clamping plate (13); the central clamping plate (12) adopts a circular grid plate; the edge clamping plate (13) is connected to the periphery of the central clamping plate (12) through a connecting rod; the elastic pressure ring (7) is provided with a composite elastic layer; the composite elastic The layer includes a stainless steel spring layer (14) and a rubber buffer layer (15); the stainless steel spring layer (14) is 10 mm thick; the rubber buffer layer (15) is bonded to the surface of the stainless steel spring layer (14) with an adhesive; the tower body unit (1) is provided with a guide limiting structure; the guide limiting structure includes a guide post (16), a limiting sleeve (17) and a positioning pin (18); the guide post (16) is vertically welded to the inner wall of the tower body unit (1); the limiting sleeve (17) is sleeved on the outside of the guide post (16); the positioning pin (18) penetrates the side wall of the limiting sleeve (17); the control unit (3) is provided with an adaptive voltage regulation system; the adaptive voltage regulation system includes a data acquisition unit (19), an analysis calculator (20) and Pressure regulator (21); the data acquisition unit (19) is connected to each sensor; the analysis calculator (20) is integrated into the signal processor (10); the pressure regulator (21) is connected to the clamping unit (2) through a hydraulic cylinder; the clamping unit (2) is provided with an anti-loosening structure; the anti-loosening structure includes a locking nut (22), an anti-rotation washer (23), and a safety pin (24); the locking nut (22) is screwed onto the end of the support bolt; the anti-rotation washer (23) is placed between the nut and the pressure plate; the safety pin (24) passes through the side hole of the bolt and the nut; the tower body unit (1) is provided with a quick maintenance structure; the quick maintenance structure includes a maintenance manhole (25), an observation window (26), and a test interface (27);The maintenance manhole (25) is located on the side wall of the tower unit (1); the observation window (26) is embedded in the manhole cover; the test interface (27) is located on the side of the control unit (3).

2. The packing compaction device for a packed tower according to claim 1, characterized in that, In the partitioned pressing structure of the pressing grid plate (6), the outer diameter of the central pressing plate (12) is 50% to 70% of the diameter of the pressing grid plate (6), and the thickness is 5 mm to 10 mm; the width of the edge pressing plate (13) is 50 mm to 100 mm of the edge area of ​​the pressing grid plate (6), and the thickness is 4 mm to 8 mm; the diameter or cross-sectional size of the connecting rod is 10 mm to 15 mm, and the length is 50 mm to 100 mm; an adjustable gap is left between the central pressing plate (12) and the edge pressing plate (13), and they are connected by pins or bolts.

3. The packing compaction device for a packed tower according to claim 1, characterized in that, In the composite elastic layer of the elastic pressure ring (7), the stainless steel spring layer (14) is made of high elastic stainless steel helical spring, wave spring or disc spring, with a wire diameter or plate thickness of two to five millimeters and a free height of twenty to fifty millimeters; the rubber buffer layer (15) is made of fluororubber, EPDM rubber or silicone rubber, with a thickness of three to eight millimeters; the stainless steel spring layer (14) and the rubber buffer layer (15) are tightly bonded together by high-performance industrial adhesive or hot vulcanization process.

4. The packing compaction device for a packed tower according to claim 1, characterized in that, In the guide limiting structure of the tower body unit (1), the diameter of the guide post (16) is 20 mm to 40 mm and the length is 1 m to 300 mm; the inner diameter of the limiting sleeve (17) is tightly fitted with the outer diameter of the guide post (16), the radial gap is 0.5 mm to 1.0 mm, and the length is 80 mm to 200 mm; the diameter of the positioning pin (18) is 5 mm to 8 mm; the guide post (16) is vertically welded to the inner wall of the tower body unit (1) and evenly distributed around the periphery of the pressing unit (2), and the limiting sleeve (17) is fixed to the pressing grid plate (6) or its support frame.

5. A packing compression device for a packed tower according to claim 1, characterized in that, In the adaptive pressure regulation system of the control unit (3), the data acquisition unit (19) is a multi-channel analog-to-digital converter module with a sampling rate of 100 to 1,000 times per second; the analysis calculator (20) is integrated into the signal processor (10) through an adaptive control algorithm; the pressure regulator (21) is a high-precision hydraulic cylinder or electric push rod with a rated thrust of 5,000 to 20,000 Newtons and a stroke of 500 to 1,000 millimeters; the data acquisition unit (19) is connected to the displacement sensor (8) and the pressure detection module (9), and the pressure regulator (21) is connected to the pressure grid plate (6) or its support frame through hydraulic pipelines or power lines.

6. A packing compaction device for a packed tower according to claim 1, characterized in that, In the anti-loosening structure of the clamping unit (2), the locking nut (22) is made of high-strength alloy steel or nylon self-locking nut; the anti-rotation washer (23) is made of high-strength spring steel or toothed anti-loosening washer with a thickness of one to three millimeters; the safety pin (24) is made of hardened stainless steel with a diameter of four to six millimeters; the locking nut (22) is fastened to the end of the support bolt by double nut locking, slotted nut with cotter pin or nylon self-locking ring, the anti-rotation washer (23) is set between the locking nut (22) and the pressure plate or support frame, and the safety pin (24) passes through the support bolt and the side hole of the locking nut (22).

7. A packing compaction device for a packed tower according to claim 1, characterized in that, In the rapid maintenance structure of the tower unit (1), the outer diameter of the maintenance manhole (25) is 400 mm to 600 mm and the thickness is 10 mm to 20 mm; the diameter of the observation window (26) is 1 m to 200 mm and the thickness is 10 mm to 20 mm; the test interface (27) adopts an industrial-grade waterproof connector or a USB Type-C interface; the maintenance manhole (25) is opened on the side wall of the tower unit (1) and located above or below the clamping unit (2); the observation window (26) is embedded in the center of the manhole cover plate; and the test interface (27) is connected to the signal processor (10) through an internal communication bus.

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