A reactor tank pressure control device

Abstract

The utility model discloses a tank pressure control device of reactor relates to chemical equipment control technical field, and this device includes the base of being equipped with three interfaces, and each interface and corresponding pressure control pipe, main control pressure device and micro -control pressure device all are equipped with the connecting disc, and are connected through three same quick -detach structure, and main control pressure device and micro -control pressure device constitute two -level adjusting mechanism, realize quick coarse adjustment and accurate fine adjustment respectively, and the connecting disc is in the shape of flying saucer, and the butt joint surface is equipped with the sealing ring, and the quick -detach structure includes two pressure -tight half -rings and locking assembly, and the half -ring inner wall is equipped with eight -character shape arc ball support plate, and its inclination angle is matched with the connecting disc bevel, and is equipped with the ball on the support plate and forms rolling contact, and the locking assembly is driven half -ring opening and closing through screw, nut and sliding block mechanism, the utility model discloses realized the high accuracy control of pressure and the quick dismounting of each part, and effectively solved the traditional device adjusting accuracy and speed contradiction, the inconvenient maintenance problem of not.

Description

Technical Field

[0001] This utility model relates to the field of chemical equipment control technology, specifically a reactor pressure control device. Background Technology

[0002] In the fields of chemical engineering, pharmaceuticals and bioengineering, reactors are core production equipment, and the precise and stable control of their internal pressure is crucial to reaction efficiency, product quality and production safety.

[0003] Currently, reactor tank pressure control largely relies on a single pressure relief valve or control valve. This single-stage control method has inherent drawbacks: if a large-diameter valve is used to achieve rapid pressure relief, its control accuracy at small openings is poor, making it difficult to achieve precise pressure stability; if a small-diameter precision valve is used to ensure control accuracy, its pressure relief capacity is limited and it cannot cope with rapid pressure increases, posing safety risks. In other words, a single valve cannot meet the dual requirements of rapid coarse adjustment and precise fine adjustment, and the control effect is often unsatisfactory in wide-range pressure regulation applications.

[0004] In addition, the existing tank pressure control devices and reactor pipelines mostly use the traditional flange connection method. This method requires the use of multiple bolts and nuts for fastening. The installation and disassembly process is cumbersome and time-consuming, requiring professional tools and a large operating space. This not only increases the maintenance time of the equipment and affects production efficiency, but also, in occasions that require frequent cleaning or sterilization (such as the food and pharmaceutical industries), the complex structure of the flange connection can easily create sanitary dead corners, causing great inconvenience to cleaning work.

[0005] Therefore, there is a need in the field for a reactor tank pressure control device that can achieve high-precision, wide-range pressure control while also being easy to disassemble and maintain quickly. Utility Model Content

[0006] (a) Technical problems to be solved

[0007] To address the shortcomings of existing technologies, this invention provides a reactor pressure control device that solves the aforementioned problems.

[0008] (II) Technical Solution

[0009] To achieve the above objectives, this utility model is implemented through the following technical solution: a tank pressure control device for a reactor, comprising a base with three interfaces, each interface of the base being fixedly provided with a connecting plate, and the connection ends of the reactor pressure control pipe, a main pressure control device and a micro pressure control device being respectively fixedly provided with connecting plates, the three interfaces of the base being connected to the pressure control pipe, the main pressure control device and the micro pressure control device respectively through three quick-release structures with the same structure;

[0010] The main pressure control device and the micro pressure control device together constitute a two-stage regulation mechanism for the reactor tank pressure.

[0011] Preferably, the two connecting discs are symmetrically arranged and their mating surfaces are tightly fitted; a sealing ring is provided on the mating surface of the connecting discs; the thickness of the connecting discs gradually decreases from the center to the edge, so that after the two connecting discs are mated and fitted together, their overall outline is a saucer shape that is thicker in the center and thinner at the edge.

[0012] Preferably, the quick-release structure includes a first pressing semicircular ring, a second pressing semicircular ring, and a locking assembly. The first pressing semicircular ring and the second pressing semicircular ring close to form a ring, which is used to clamp and lock a pair of mutually fitting connecting discs. The locking assembly is used to drive the first pressing semicircular ring and the second pressing semicircular ring to close or open.

[0013] Preferably, both sides of the inner wall of the first and second pressing semicircular rings are provided with arc-shaped ball bearing support plates; the two arc-shaped ball bearing support plates are inclined relative to the axis of the pressing semicircular rings, and their front view is V-shaped; the inclination angle of the arc-shaped ball bearing support plates matches the tapered slope of the connecting plate to ensure that the balls can form full rolling contact with the slope of the connecting plate.

[0014] Preferably, the locking assembly includes a fixed connecting plate, a movable connecting plate, a screw, and a nut. The fixed connecting plate is fixedly connected to the outer wall of the first pressing semicircular ring. The movable connecting plate is rotatably connected to the outer wall of the second pressing semicircular ring via a rotating shaft. The movable connecting plate has a cavity inside, and a sliding groove is formed on the side wall of the cavity. The nut is housed in the cavity, and a slider that slides with the sliding groove is provided on its outer wall. The screw passes through a through hole in the fixed connecting plate and the nut housed in the cavity of the movable connecting plate, and the screw and nut are threadedly connected. By turning the screw, the nut is driven to move along the sliding groove, thereby causing the first pressing semicircular ring and the second pressing semicircular ring to close or open.

[0015] Preferably, the main pressure control device is a pilot-operated electromagnetic pressure relief valve.

[0016] Preferably, the micro-pressure control device is a piezoelectric micro-valve.

[0017] (III) Beneficial Effects

[0018] This invention provides a tank pressure control device for a reactor. It has the following beneficial effects:

[0019] 1. By setting up a main pressure control device and a micro pressure control device to form a two-stage adjustment mechanism, the main pressure control device performs rapid and large-flow coarse adjustment to quickly reduce the pressure to near the target range, and then the micro pressure control device performs high-frequency and small-amplitude fine adjustment to accurately stabilize the final pressure. This effectively solves the industry problem that a single valve cannot simultaneously achieve both adjustment speed and control accuracy, and significantly improves the control quality of the reaction process and product consistency.

[0020] 2. By setting up a connecting plate and a quick-release structure, each component of the entire device (base, pressure control tube, main pressure control device, and micro pressure control device) becomes an independent module that can be quickly separated. During disassembly, only the locking component of the quick-release structure needs to be operated to quickly complete the separation of the components, shortening the downtime for equipment maintenance, cleaning, and component replacement. It is particularly suitable for processes that require frequent cleaning or sterilization. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of this utility model;

[0022] Figure 2 This is a structural analytical diagram of the present invention;

[0023] Figure 3 This is a schematic diagram of the quick-release structure in this utility model;

[0024] Figure 4 for Figure 3 A magnified view of a portion of area A;

[0025] Figure 5 This is a side view of the internal structure of the quick-release structure in this utility model;

[0026] Figure 6 This is a schematic diagram of the locking component structure in this utility model;

[0027] Figure 7 This is a top view of the internal structure of the movable connecting plate in this utility model.

[0028] In the diagram: Base-1, Quick-release structure-2, Pressure control tube-3, Main pressure control device-4, Micro pressure control device-5, Connecting plate-6;

[0029] Clamping semicircular ring 1-21, clamping semicircular ring 2-22, arc-shaped ball bearing support plate-23, ball bearing-24, fixed connecting plate-25, movable connecting plate-26, cavity-261, slide groove-262, screw-27, nut-28, slider-281. Detailed Implementation

[0030] The following is in conjunction with the appendix Figure 1 -Appendix Figure 7 This application will be described in further detail below.

[0031] Example 1: The core of this example is that the main pressure control device 4 and the micro pressure control device 5 work together to form a precise two-stage adjustment mechanism for the pressure of the reactor tank.

[0032] Please see Figure 1 and Figure 2 The tank pressure control device includes a base 1 that serves as a flow path hub. The three interfaces of the base 1 are connected to the pressure control pipe 3, the main pressure control device 4, and the micro pressure control device 5 of the reactor respectively through a quick-release structure 2. The main pressure control device 4 is preferably a pilot-operated electromagnetic pressure relief valve, which is characterized by a large diameter and strong discharge capacity, and is suitable for the rapid discharge of large flow rates of gas. The micro pressure control device 5 is preferably a piezoelectric micro valve or a micro proportional valve, which is characterized by extremely fast response speed and high control accuracy, and is suitable for the precise adjustment of small flow rates.

[0033] A high-precision pressure sensor is installed on the base 1 to monitor the pressure inside the reactor in real time. The main pressure control device 4 and the micro pressure control device 5 are both electrically connected to a controller, which receives real-time pressure signals from the pressure sensor.

[0034] The two-stage voltage regulation principle in this embodiment is based on a control strategy that combines coarse and fine adjustment, and its workflow is as follows:

[0035] A high-precision pressure sensor installed on base 1 monitors the pressure inside the tank in real time and transmits the signal to the central controller.

[0036] Coarse adjustment stage: When the pressure inside the reactor rises and exceeds the set first threshold, which is slightly higher than the final target pressure, the controller first controls the main pressure control device 4 to open. Due to its large diameter characteristics, the main pressure control device 4 quickly releases a large amount of gas, causing the pressure inside the tank to drop rapidly. The goal of this stage is to efficiently pull the pressure back from the high level to a smaller range near the target pressure to avoid pressure runaway.

[0037] Fine-tuning stage: When the pressure enters the fine-tuning range around the target pressure, the controller closes the opening of the main pressure control device 4 and simultaneously starts the micro pressure control device 5. The micro pressure control device 5 precisely adjusts its opening in a high-frequency, small-amplitude manner based on the small feedback signal from the pressure sensor to fine-tune the pressure, accurately counteract the small fluctuations in pressure, and finally stabilize the tank pressure at the target value. The control accuracy is far higher than that of the scheme using a single valve.

[0038] The main pressure control device 4 and the micro pressure control device 5 together form a two-stage regulation mechanism for the reactor tank pressure, which effectively solves the contradiction that a single valve is not precise enough in coarse adjustment and not fast enough in fine adjustment when adjusting over a wide range. It is especially suitable for chemical reaction processes with extremely high requirements for pressure stability.

[0039] Example 2: The core of this example is to achieve quick and reliable sealed connection and disassembly of the entire device through the quick-release structure 2 and its cooperation mechanism with the connecting plate 6.

[0040] Please see Figures 3 to 7 The three interfaces of the base 1, the pressure control tube 3, the main pressure control device 4 and the micro pressure control device 5 are all fixedly equipped with an annular connecting plate 6. The two connecting plates 6 are symmetrically arranged and their mating surfaces are precisely machined to ensure a tight fit. To achieve a reliable seal, a sealing ring installation groove is opened on the mating surface and a sealing ring is embedded therein. The unique design of the connecting plate 6 is its cross-sectional shape: the thickness gradually decreases from the center to the edge, so that after the two connecting plates 6 are mated and fitted together, its overall outline is a "flying saucer" shape with a thick center and a thin edge. This gradually decreasing sloping structure is a key design for cooperation with the quick-release structure 2.

[0041] The quick-release structure 2 consists of a first clamping semicircular ring 21, a second clamping semicircular ring 22, and a locking assembly. When closed, the first clamping semicircular ring 21 and the second clamping semicircular ring 22 form a complete ring, which is used to clamp a pair of mating connecting discs 6.

[0042] On both sides of the inner wall of the first and second semicircular rings 21 and 22, there are arc-shaped ball bearing support plates 23. The two arc-shaped ball bearing support plates 23 are inclined relative to the axis of the pressing semicircular rings, and their front view is "eight" shaped. The inclination angle of the arc-shaped ball bearing support plates 23 is precisely matched with the tapered slope of the connecting plate 6. Each arc-shaped ball bearing support plate 23 is embedded with several balls 24. When the quick-release structure is locked, the balls 24 form full rolling contact with the slope of the connecting plate 6.

[0043] The locking assembly includes a fixed connecting plate 25, a movable connecting plate 26, a screw 27, and a nut 28. The fixed connecting plate 25 is fixedly connected to the outer wall of the first pressing semicircular ring 21. The movable connecting plate 26 is rotatably connected to the outer wall of the second pressing semicircular ring 22 via a rotating shaft. It has a cavity 261 inside and a sliding groove 262 on its side wall. The nut 28 is housed in the cavity 261. The slider 281 on its outer wall is slidably engaged with the sliding groove 262. The screw 27 passes through the through hole on the fixed connecting plate 25 and the through hole on the side wall of the movable connecting plate 26 in sequence, and finally extends into the cavity 261 to be threadedly connected to the nut 28.

[0044] The quick-release principle in this embodiment is based on a combination of inclined plane self-locking and screw drive:

[0045] Locking process: Place the two semicircular rings on the mated connecting discs 6 and tighten the screw 27. Since the nut 28 is restricted from rotating by the slider 281, the rotational motion of the screw 27 is converted into the linear motion of the nut 28. The nut 28 moves away from the fixed connecting plate 25 along the slide groove 262. This action pulls the clamping semicircular ring 22 through the movable connecting plate 26, so that it closes with the clamping semicircular ring 21. During the closing process, the balls 24 on the arc-shaped ball bearing support plate 23 arranged in a "figure-eight" shape will roll on the tapered inclined surface of the connecting disc 6. The existence of the inclined surface makes the radial clamping force effectively converted into the axial clamping force on the mating surface of the two connecting discs 6, thereby achieving a high-strength seal. The balls 24 change the sliding friction into rolling friction, making the operation more labor-saving.

[0046] Disassembly process: Twist screw 27 in the reverse direction to drive nut 28 to move in the opposite direction, pushing the two semi-circular rings to open, so that quick-release structure 2 can be easily removed from connecting plate 6, achieving rapid separation.

[0047] The quick-release structure 2 and connecting plate 6 enable modular and rapid assembly and disassembly of all components of the entire tank pressure control device, greatly facilitating maintenance, cleaning, and component replacement.

[0048] 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 reactor pressure control device, characterized in that, It includes a base (1) with three interfaces. Each interface of the base (1) is fixedly provided with a connecting plate (6). The connection ends of the pressure control pipe (3), a main pressure control device (4) and a micro pressure control device (5) of the reactor are also fixedly provided with connecting plates (6). The three interfaces of the base (1) are connected to the pressure control pipe (3), the main pressure control device (4) and the micro pressure control device (5) respectively through three quick-release structures (2) with the same structure. The main pressure control device (4) and the micro pressure control device (5) together constitute a two-stage adjustment mechanism for the reactor tank pressure.

2. The reactor pressure control device according to claim 1, characterized in that: The two connecting discs (6) are symmetrically arranged and their mating surfaces are tightly fitted together; a sealing ring is provided on the mating surface of the connecting disc (6); the thickness of the connecting disc (6) gradually decreases from its center to its edge.

3. The reactor pressure control device according to claim 1, characterized in that: The quick-release structure (2) includes a first pressing semicircular ring (21), a second pressing semicircular ring (22), and a locking assembly. The first pressing semicircular ring (21) and the second pressing semicircular ring (22) close to form a ring, which is used to clamp and lock a pair of mutually fitting connecting discs (6). The locking assembly is used to drive the first pressing semicircular ring (21) and the second pressing semicircular ring (22) to close or open.

4. The reactor pressure control device according to claim 3, characterized in that: Both sides of the inner wall of the first (21) and the second (22) of the pressing semicircular ring are provided with arc-shaped ball bearing support plates (23). The two arc-shaped ball bearing support plates (23) are inclined relative to the axis of the pressing semicircular ring, and the inclination angle of the arc-shaped ball bearing support plates (23) matches the tapered slope of the connecting plate (6).

5. The reactor pressure control device according to claim 3, characterized in that: The locking assembly includes a fixed connecting plate (25), a movable connecting plate (26), a screw (27), and a nut (28). The fixed connecting plate (25) is fixedly connected to the outer wall of the first pressing semicircular ring (21). The movable connecting plate (26) is rotatably connected to the outer wall of the second pressing semicircular ring (22) via a rotating shaft. The movable connecting plate (26) has a cavity (261) inside. The side wall of the cavity (261) has a sliding groove (262). The nut (28) is housed in the cavity (261). Its outer wall is provided with a slider (281) that slides with the sliding groove (262). The screw (27) passes through the through hole on the fixed connecting plate (25) and the nut (28) housed in the cavity (261) of the movable connecting plate (26). The screw (27) and the nut (28) are threadedly connected.

6. The reactor pressure control device according to claim 1, characterized in that: The main pressure control device (4) is a pilot-operated electromagnetic pressure relief valve.

7. The reactor pressure control device according to claim 1, characterized in that: The micro-pressure control device (5) is a piezoelectric micro-valve.

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