Reaction kettle with jacket for cooling and temperature control

Abstract

The invention relates to the technical field of reaction kettles, and discloses a jacket cooling and temperature control reaction kettle, which comprises a tank body, a feed port arranged on the upper surface of the tank body, a jacket, a steam inlet pipe, a discharge valve and a steam outlet pipe, the jacket is fixed on the peripheral surface of the tank body, the steam inlet pipe is fixed on the peripheral surface of the jacket, the discharge valve is fixed on the lower surface of the tank body, and the steam outlet pipe is fixed on the lower surface of the tank body. The steam outlet pipe is fixed on the lower surface of the jacket, the liquid collecting mechanism is arranged on the lower surface of the jacket, and the liquid collecting mechanism comprises a first annular groove, a first water guide plate, a vent hole, a liquid collecting frame, a liquid discharge valve and an exhaust valve. When the condensate water is discharged under the standard atmospheric pressure environment, the water attack phenomenon of the condensate water in the discharging process can be avoided, that is, the condensate water is prevented from being rapidly discharged from the liquid outlet under the action of high pressure, and violent vibration of the reaction kettle is avoided.

Description

Technical Field

[0001] This invention belongs to the field of reaction vessel technology, and specifically relates to a jacketed cooling and temperature control reaction vessel. Background Technology

[0002] As a core reaction equipment in the fields of chemical industry, pharmaceutical industry, food industry, and new materials industry, reaction vessels are widely used in various process scenarios that require mixing, stirring, and chemical reaction. Most chemical reaction processes are accompanied by significant endothermic or exothermic effects. The precise control of the reaction system temperature directly determines the reaction rate, product purity, yield, and production safety. Therefore, an efficient temperature control system is a key component of the reaction vessel. Moreover, the jacketed temperature control structure on the reaction vessel has become one of the mainstream temperature control solutions for reaction vessels due to its advantages such as compact structure, no occupation of effective space inside the vessel, and convenient maintenance.

[0003] In jacketed reactors, the cooling and temperature control of the jacket is a core component, used to handle exothermic reactions, material cooling and crystallization, and post-reaction cooling and discharge. The core principle is to introduce a low-temperature cooling medium into the jacket, which exchanges heat with the reactor wall to remove heat from the material inside, thus achieving cooling of the reactor. Alternatively, a high-temperature medium can be introduced into the jacket, which exchanges heat with the reactor wall to heat the material inside.

[0004] In the heating process of a jacketed reactor, high-pressure saturated steam needs to be introduced into the jacket to heat the raw materials to 120-180℃. The introduction of this high-pressure saturated steam creates high pressure within the jacket, and condensation occurs as the steam flows through it. Typically, a drain outlet is installed at the bottom of the jacket to drain this condensate. After heating is complete, the drain outlet is opened to release the condensate. During prolonged heating of the material, to prevent the accumulation of condensate within the jacket from affecting heat exchange, the condensate also needs to be drained from the jacket... If the drain is opened directly during internal discharge, the high-pressure environment inside the jacket (i.e., a pressure difference between the inside and outside of the jacket) will cause water hammer. This will cause condensate and high-pressure saturated steam to spray out of the drain at extremely high speeds under the pressure difference. The discharge of condensate will impact the discharge pipe, causing the reactor to vibrate violently. The discharge of high-pressure saturated steam will lower the temperature inside the jacket, disrupting the stability of heat conduction between the jacket and the material inside the reactor. Ultimately, this will cause the temperature of the material inside the reactor to fluctuate wildly and become difficult to control, affecting the final quality of the reaction products. Summary of the Invention

[0005] This invention provides a jacketed cooling and temperature-controlled reactor, which solves the technical problem in related technologies where, during heating, high-pressure steam in the jacket generates condensate, and water hammer is caused by the pressure difference between the inside and outside during drainage, resulting in severe vibration of the equipment. At the same time, steam loss disrupts heat exchange stability, leading to material temperature fluctuations and affecting product quality.

[0006] The present invention provides a jacketed cooling and temperature-controlled reactor, comprising a tank body, a feed inlet formed on the upper surface of the tank body, a jacket, a steam inlet pipe, a discharge valve and a steam outlet pipe. The jacket is fixed to the outer circumferential surface of the tank body, the steam inlet pipe is fixed to the outer circumferential surface of the jacket, the discharge valve is fixed to the lower surface of the tank body, and the steam outlet pipe is fixed to the lower surface of the jacket. It also includes a liquid collection mechanism disposed on the lower surface of the jacket. The liquid collection mechanism includes a first annular groove, a first water guide plate, a vent hole, a liquid collection frame, a liquid drain valve and an air vent valve. The first annular groove is opened at the bottom inner side of the jacket. The first water guide plate is fixed in the first annular groove. The vent hole is opened at the bottom of the jacket. A second liquid drain valve is installed at the bottom opening of the vent hole. The liquid collection frame is fixed to the lower surface of the jacket. The air vent valve is fixedly connected to the side of the liquid collection frame. The liquid drain valve is fixedly connected to the bottom of the liquid collection frame.

[0007] In a preferred embodiment, the vent is connected to the first annular groove. Two first water guide plates are provided, both of which are fixedly connected to the bottom of the first annular groove and are arranged symmetrically. Two vents are also provided, which are arranged symmetrically along the axis of the jacket. The two first water guide plates are respectively located on both sides of the two vents. The first water guide plate has a C-shaped arc plate structure, and the axial height of the first water guide plate gradually decreases from the middle to both ends. The two first water guide plates are combined to form a circular structure, and the two vents are located at the connection points of the two ends of the two first water guide plates.

[0008] In a preferred embodiment, the liquid collection mechanism further includes a guide hole, a first liquid outlet valve, a second annular groove, a second water guide plate, and a conical plate. The guide hole is opened at the bottom of the jacket, the first liquid outlet valve is fixedly connected inside the guide hole, the second annular groove is opened at the bottom of the inner side of the jacket, the second water guide plate is fixedly connected to the bottom of the second annular groove, and the conical plate is fixedly connected to the bottom of the inner side of the jacket.

[0009] In a preferred embodiment, the second annular groove is located at the lowest point of the heat exchange chamber, the first liquid outlet valve is disposed at one end of the guide hole near the second liquid outlet valve, the second annular groove is disposed on the outer ring of the first annular groove and is coaxially arranged, a raised ring is provided between the second annular groove and the first annular groove, and one end of the guide hole near the inner cavity of the jacket is connected to the bottom of the second annular groove.

[0010] In a preferred embodiment, the liquid collection mechanism further includes a fixed frame, a sliding sleeve, a sliding column, and a float plate. The fixed frame is fixedly connected to the inner wall of the liquid collection frame, the sliding sleeve is fixedly connected to the upper surface of the fixed frame, the sliding column is sleeved inside the sliding sleeve, and the float plate is fixedly connected to the end of the sliding column near the second liquid outlet valve.

[0011] In a preferred embodiment, a first sliding groove is formed inside the sliding sleeve along the axial direction of the jacket, a sliding column is located in the first sliding groove, the sliding column and the first sliding groove form a sliding guide fit, and a float plate is coaxially arranged on the sliding column, and the float plate is located directly below the bottom opening of the vent hole. A sensor is provided at the bottom of the jacket, the sensor is located at the bottom opening of the vent hole, and the sensor is signal connected to the first liquid outlet valve.

[0012] In a preferred embodiment, the liquid collection frame includes a fixed frame and a movable frame, the fixed frame being fixedly connected to the bottom of the jacket, and the movable frame being slidably connected to the outer peripheral surface of the fixed frame.

[0013] In a preferred embodiment, the liquid collection mechanism further includes a sealing groove, a fixing groove, a fixing rod, a first spring, a fixing block, an iron block, and an electromagnet. The sealing groove and the fixing groove are formed in the inner ring of the movable frame. The fixing rod is fixedly connected to the lower surface of the jacket and is set in the fixing frame. The fixing rod has a fifth through groove along the radial direction of the fixing frame. The fixing block is slidably connected in the fifth through groove. One end of the first spring is fixed to the fixing block, and the other end is fixed to the wall of the fifth through groove. The iron block is fixedly connected to the fixing block, and the electromagnet is fixedly connected to the inner circumferential surface of the fixing frame.

[0014] In a preferred embodiment, a sealing groove is radially opened along the movable frame, and a sealing ring is installed inside the sealing groove. A fixing groove is parallel to the sealing groove and is located below the sealing groove. A fourth through groove is radially opened along the movable frame of the fixing frame, with the opening of the fourth through groove facing the movable frame. A fixing block is slidably fitted into the fourth through groove. The side of the fixing block near the movable frame has a sloped surface below it. The end of the fixing block near the sloped surface is inserted into the fixing groove. A fixing bracket is fixedly connected to the inner wall of the fixing frame. A drain valve is fixed to the lower surface of the movable frame, and an exhaust valve is fixed to the outer circumferential surface of the fixing frame.

[0015] In a preferred embodiment, the liquid collection mechanism further includes a pressure plate, a slot, an inclined block, a guide post, a baffle, and a second spring. The pressure plate is fixedly connected to the side of the float plate near the second liquid outlet valve. The slot is opened on one side of the pressure plate. The inclined block is slidably connected inside the fixed rod. The guide post is fixedly connected to the lower surface of the jacket. The baffle is slidably connected to the outside of the guide post. The second spring is located between the baffle and the jacket, and the two ends of the second spring are respectively connected to the baffle and the jacket.

[0016] The beneficial effects of this invention are as follows: 1. The present invention, through the opening of the first annular groove and the vent hole, allows condensate to smoothly enter the liquid collection frame, avoiding the accumulation of condensate inside the heat exchange chamber. Furthermore, during the condensate discharge process, by first venting and then draining, the pressure inside the liquid collection frame is restored to standard atmospheric pressure before the condensate is discharged, thus balancing the pressure between the liquid collection frame and the outside environment. Under standard atmospheric pressure, water hammer can be avoided during the discharge process, preventing the condensate from being rapidly discharged from the drain port under high pressure, thus avoiding severe vibration of the reactor. Moreover, the volume inside the liquid collection frame is small; although some high-pressure saturated steam from the heat exchange chamber will enter the liquid collection frame and be discharged, this small amount of high-pressure saturated steam will not affect the heat exchange between the heat exchange chamber and the tank.

[0017] 2. Before draining the liquid, the first liquid outlet valve is closed, so that the continuously generated condensate is temporarily stored in the guide hole and will not accumulate in the vent hole. After draining the liquid, the second liquid outlet valve is opened first to gradually balance the pressure difference between the heat exchange chamber and the liquid collection frame. Then the first liquid outlet valve is opened to allow the condensate in the guide hole to re-enter the liquid collection frame for collection. This avoids water hammer caused by the instantaneous pressure difference between the heat exchange chamber and the liquid collection frame, and further eliminates the impact damage of water hammer to the liquid collection frame, as well as the structural fatigue risk caused by device vibration.

[0018] 3. When the water level sensor malfunctions, the float plate automatically responds to the change in the liquid level of the condensate in the collection frame by buoyancy. When the liquid level reaches the critical overflow level, it blocks the bottom opening of the vent hole and cuts off the condensate backflow channel. At the same time, it triggers the sensor to close the first outlet valve, cutting off the condensate upstream channel and preventing condensate from entering the vent hole and accumulating when the second outlet valve is closed. This avoids water hammer caused by the high pressure in the heat exchange chamber when the second outlet valve is reopened. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the external structure of the jacketed cooling and temperature control reactor of the present invention.

[0020] Figure 2 This is a front cross-sectional view of the reaction vessel with jacketed cooling and temperature control according to the present invention.

[0021] Figure 3 This is a schematic cross-sectional view of the right side of the jacketed cooling and temperature control reactor of the present invention.

[0022] Figure 4 This is the invention Figure 2 Enlarged structural diagram at point A in the middle.

[0023] Figure 5 This is the invention Figure 2Enlarged structural diagram at point B.

[0024] Figure 6 This is the invention Figure 5 Enlarged structural diagram at point D.

[0025] Figure 7 This is the invention Figure 3 Enlarged structural diagram at point C.

[0026] Figure 8 This is a schematic diagram of the external structure of the first water guide plate in the jacketed cooling and temperature control reactor of the present invention.

[0027] In the diagram: 1. Tank; 2. Thermometer; 3. Stirring assembly; 4. Feed inlet; 5. Jacket; 51. Heat exchange chamber; 6. Steam inlet pipe; 7. Discharge valve; 8. Liquid collection mechanism; 9. Steam outlet pipe; 81. First annular groove; 811. First guide plate; 812. Guide hole; 8121. First liquid outlet valve; 8122. Second annular groove; 8123. Second guide plate; 82. Conical plate; 83. Vent hole; 831. Second liquid outlet valve; 84. Liquid collection frame; 84 1. Fixed frame; 842. Movable frame; 8421. Sealing groove; 8422. Fixed groove; 843. Drain valve; 844. Exhaust valve; 85. Fixed bracket; 851. Sliding sleeve; 852. Sliding column; 853. Float plate; 854. Pressure plate; 8541. Slot; 86. Fixed rod; 861. Angled locking block; 862. First spring; 87. Guide column; 871. Baffle; 872. Second spring; 88. Fixed block; 881. Iron block; 882. Electromagnet. Detailed Implementation

[0028] The present application will now be described in further detail with reference to the accompanying drawings. It should be noted that the following specific embodiments are only used to further illustrate the present application and should not be construed as limiting the scope of protection of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application based on the above application content.

[0029] like Figure 1 , Figure 2 , Figure 4 , Figure 7 As shown, this invention aims to solve the problem that when a jacketed reactor is heated, the high-pressure steam inside the jacket 5 generates condensate, and the water hammer caused by the pressure difference between the inside and outside during drainage causes severe vibration of the equipment. At the same time, the steam loss disrupts the heat exchange stability, leading to material temperature fluctuations and affecting product quality. A jacketed cooling and temperature-controlled reactor includes a tank body 1, an inlet 4 opened on the upper surface of the tank body 1, a jacket 5, a steam inlet pipe 6, a discharge valve 7, and a steam outlet pipe 9. The jacket 5 is fixed to the outer circumferential surface of the tank body 1, the steam inlet pipe 6 is fixed to the outer circumferential surface of the jacket 5, the discharge valve 7 is fixed to the lower surface of the tank body 1, and the steam outlet pipe 9 is fixed to the lower surface of the jacket 5. It also includes a liquid collection mechanism 8 disposed on the lower surface of the jacket 5. The liquid collection mechanism 8 includes a first annular groove 81, a first water guide plate 811, a vent 83, a liquid collection frame 84, a drain valve 843, and an exhaust valve 844. The first annular groove 81 is opened at the bottom inner side of the jacket 5. The first water guide plate 811 is fixed in the first annular groove 81. The vent 83 is opened at the bottom of the jacket 5. A second drain valve 831 is installed at the bottom opening of the vent 83. The liquid collection frame 84 is fixed to the lower surface of the jacket 5. The exhaust valve 844 is fixedly connected to the side of the liquid collection frame 84. The drain valve 843 is fixedly connected to the bottom of the liquid collection frame 84.

[0030] Specifically, a movable sealing cover is provided on the feed inlet 4. When no material is being fed, it is fixed to the feed flange end face by bolts or clips to completely seal the feed inlet 4, preventing dust and impurities from entering the tank body 1. The jacket 5 is annularly wrapped and fixed to the outer circumference of the tank body 1, forming a sealed heat exchange chamber 51 with the outer wall of the tank body 1. The first annular groove 81 is located at the lowest point of the heat exchange chamber 51 and is interconnected with the heat exchange chamber 51. By introducing a heating medium such as steam or a cooling medium such as cooling water into the heat exchange chamber 51, the heat exchange chamber 1 is heated by the external heat exchange medium. The heat conduction of the wall indirectly regulates the temperature of the reaction system inside the tank 1. The steam inlet pipe 6 serves as the introduction channel for the heating medium steam. The steam inlet pipe 6 is mainly connected to the existing steam generating equipment and supporting auxiliary devices. It is fixed to the outer circumference of the jacket 5 and communicates with the heat exchange chamber 51. It provides the required heat to the reaction system through the heat exchange between the steam and the outer wall of the tank 1. The steam outlet pipe 9 is fixed to the lower surface of the jacket 5 and communicates with the inner cavity of the jacket 5. The end of the steam outlet pipe 9 away from the jacket 5 is connected to the existing waste heat exchanger so that it can be used to recover the waste heat of the steam. In the liquid collection mechanism 8, the vent 83 is connected to the first annular groove 81. Two first water guide plates 811 are provided, both fixedly connected to the bottom of the first annular groove 81, and arranged symmetrically. Similarly, two vent 83s are provided, symmetrically arranged along the axis of the jacket 5. The two first water guide plates 811 are respectively located on both sides of the two vent 83s. Figure 8 As shown, the first water guide plate 811 has a C-shaped arc plate structure. The axial height of the first water guide plate 811 gradually decreases from the middle to both ends. The two first water guide plates 811 are combined to form a circular structure. The two vent holes 83 are located at the connection points of the two ends of the two first water guide plates 811, that is, the vent holes 83 are located at the lowest point of the first water guide plate 811, which is also the lowest point of the first annular groove 81. Figure 4As shown, both vent holes 83 are inclined, and each vent hole 83 is equipped with a second liquid outlet valve 831. The vent holes 83 are connected to the interior of the liquid collection frame 84. A water level sensor is installed inside the liquid collection frame 84 to monitor the condensate level in the liquid collection frame 84 in real time. The water level sensor is existing technology and will not be described in detail. An exhaust port is opened on the side of the liquid collection frame 84, and an exhaust valve 844 is located inside the exhaust port. A drain port is opened at the bottom of the liquid collection frame 84, and a drain valve 843 is located inside the drain port. Both the exhaust port and the drain port are connected to external pipes to achieve the discharge of high-pressure saturated steam and the discharge of condensate through the pipes.

[0031] like Figure 1 , Figure 2 , Figure 3 As shown, the reactor also includes a stirring assembly 3, which is mounted on the tank body 1.

[0032] It should be further explained that the stirring component 3 includes a stirring shaft, a stirring paddle, and a drive motor. Its function is to mix the reaction materials in the tank 1, and with the heat conduction between the steam and the outer wall of the tank 1, it improves the uniformity of heating of the reaction materials. The stirring component 3 is existing technology, so it will not be described in detail.

[0033] like Figure 1 , Figure 2 As shown, the reactor also includes a thermometer 2, which is mounted on the vessel body 1.

[0034] It should be further explained that the thermometer 2 consists of a temperature probe, a fixed connecting rod, and a display head. The probe extends into the material layer inside the tank, and the connecting rod is sealed and fixed to the top surface of the tank 1. Thus, during the reaction, the reaction temperature inside the tank 1 can be monitored in real time. The thermometer 2 is existing technology, so it will not be described in detail.

[0035] It should be further explained that during use, the movable sealing cover of the feed inlet 4 is opened, and the preset amount of reactant is added into the tank 1 through the feed inlet 4. After feeding is completed, the movable sealing cover is promptly fixed with bolts or clips. The steam inlet pipe 6 is connected to a steam generator. The steam generator sends high-pressure saturated steam into the heat exchange chamber 51 through external pipes and the steam inlet pipe 6. The high-pressure saturated steam contacts the outer wall of the tank 1 and undergoes heat exchange. The heat is conducted to the inside of the tank 1 through the outer wall of the tank 1. The high-pressure saturated steam after heating the reactants and completing heat exchange is discharged from the heat exchange chamber 51 through the steam outlet pipe 9 and then enters the pre-connected waste heat exchanger. At the same time, during the heat exchange process in the jacket 5, the second liquid outlet valve 831 is in the open state, and the condensate generated in the heat exchange chamber 51 falls naturally and gradually collects in the first annular groove 81. The condensate is transported to the liquid collection frame 84 through the vent hole 83, thus successfully completing the collection of condensate and avoiding the accumulation of condensate in the heat exchange chamber 51, which affects the heat exchange efficiency. When the water level sensor detects that the condensate level in the collection frame 84 has reached the set threshold, that is, a large amount of condensate has accumulated in the collection frame 84, the condensate needs to be discharged from the collection frame 84. During the discharge process, first close the second outlet valve 831 to disconnect the connection between the inside of the collection frame 84 and the vent 83, then open the exhaust valve 844 to discharge the high-pressure saturated steam in the collection frame 84. After a certain period of time, when the pressure in the collection frame 84 returns to the standard atmospheric pressure, open the drain valve 843 on the lower surface of the collection frame 84, and the condensate is discharged from the drain port. After the condensate is discharged from the drain port, close the drain valve 843 and the exhaust valve 844, and then open the second outlet valve 831 so that the condensate in the heat exchange chamber 51 re-enters the collection frame 84 for collection. Furthermore, in the above process, the opening of the first annular groove 81 and the vent hole 83 allows condensate to smoothly enter the liquid collection frame 84, preventing condensate from accumulating inside the heat exchange chamber 51. During the discharge of condensate, by first venting and then draining, the liquid collection frame 84 is restored to standard atmospheric pressure before the condensate is discharged, thus balancing the pressure between the liquid collection frame 84 and the outside. Under standard atmospheric pressure, when the condensate is discharged, water hammer can be avoided during the discharge process, preventing the condensate from being discharged rapidly from the drain port under high pressure, thus avoiding violent vibration of the reactor. Moreover, the volume inside the liquid collection frame 84 is small. Although some high-pressure saturated steam in the heat exchange chamber 51 will enter the liquid collection frame 84 and be discharged, since this part of high-pressure saturated steam is small, it will not affect the heat exchange between the heat exchange chamber 51 and the tank 1.

[0036] like Figure 4As shown, in the above embodiment, condensate is discharged by first venting and then draining. Since both the high-pressure saturated steam and the condensate discharge require a certain amount of time, and the second outlet valve 831 must be closed before drainage, and the heat exchange process continues, condensate will continuously be generated and enter the first annular groove 81, flowing into the vent hole 83. At this time, the condensate will collect on the second outlet valve 831, and cannot be discharged, only gradually accumulating in the vent hole 83. After the condensate is completely discharged, if the second outlet valve 831 is opened directly at this time, because the heat exchange chamber 51 is under high pressure while the liquid collection frame 84 returns to normal atmospheric pressure, a pressure difference is generated between the heat exchange chamber 51 and the liquid collection frame 84. At this moment, water will be generated again when the second outlet valve 831 is opened. The impact phenomenon causes condensate and high-pressure saturated steam to be ejected at extremely high speed from the bottom opening of the vent 83 under the drive of the pressure difference. The discharge of condensate will impact the liquid collection frame 84, thereby causing damage to the liquid collection frame 84 and vibration of the device. In order to avoid the above phenomenon, in this embodiment, the liquid collection mechanism 8 also includes a guide hole 812, a first liquid outlet valve 8121, a second annular groove 8122, a second water guide plate 8123 and a conical plate 82. The guide hole 812 is opened at the bottom of the jacket 5. The first liquid outlet valve 8121 is fixedly connected in the guide hole 812. The second annular groove 8122 is opened at the bottom of the inner side of the jacket 5. The second water guide plate 8123 is fixedly connected to the bottom of the second annular groove 8122. The conical plate 82 is fixedly connected to the bottom of the inner side of the jacket 5.

[0037] Specifically, the second annular groove 8122 is located at the lowest point of the heat exchange chamber 51. The first liquid outlet valve 8121 is located at one end of the guide hole 812 near the second liquid outlet valve 831. The second annular groove 8122 is located on the outer ring of the first annular groove 81 and is coaxially arranged. A raised ring is provided between the second annular groove 8122 and the first annular groove 81. The height of the raised ring itself blocks the condensate in the second annular groove 8122 from flowing into the first annular groove 81. One end of the guide hole 812 near the inner cavity of the jacket 5 is connected to the bottom of the second annular groove 8122. The guide hole 812 is connected to the vent hole 83 and is located on the upper side of the second liquid outlet valve 831. The second water guide plate 8123 has the same shape as the first water guide plate 811. At the same time, the position of the second water guide plate 8123 in the second annular groove 8122 is the same as the position of the first water guide plate 811 in the first annular groove 81. Further details are omitted. Figure 8 As shown, the guide hole 812 is located at the lowest point of the second guide plate 8123, and simultaneously at the lowest point of the second annular groove 8122. Two guide holes 812 are provided, symmetrically arranged along the axis of the jacket 5. A conical plate 82 is positioned between the jacket 5 and the tank body 1, and is located at the lowest point of the heat exchange chamber 51. The conical plate 82 has an umbrella-shaped structure, as shown... Figure 2 and Figure 4As shown, the inclined surface of the conical plate 82 gradually descends from the axis of the jacket 5, while the lower surface of the inclined surface of the conical plate 82 blocks the air vent 83, the first annular groove 81 and the top of the first water guide plate 811.

[0038] It should be further explained that when high-pressure saturated steam is introduced into the heat exchange chamber 51 for heat exchange, the generated condensate falls naturally. The condensate is guided by the umbrella-shaped conical plate 82 and the inner wall of the heat exchange chamber 51 to flow into the second annular groove 8122. Simultaneously, the lower surface of the inclined surface of the conical plate 82 blocks the area above the vent 83, the first annular groove 81, and the first water guide plate 811, preventing condensate from directly entering the vent 83. The condensate collected in the second annular groove 8122, guided by the second water guide plate 8123, gradually flows into the guide hole 812 and then into the vent 83 from the bottom opening of the guide hole 812. Finally, it flows into the collection frame 84 from the bottom opening of the vent 83. The collection frame 84 is used to collect the condensate. As in the above embodiment, when the condensate level in the collection frame 84 reaches a set threshold, the second outlet valve 831 and the first outlet valve 8121 are first closed, and then the collection frame 84 is opened. High-pressure saturated steam is discharged through exhaust valve 844, and then condensate is discharged through drain valve 843. During the draining process, the condensate continuously generated by jacket 5 is guided through conical plate 82, second annular groove 8122, second guide plate 8123, and guide hole 812 to the closed first outlet valve 8121, preventing condensate from flowing directly into vent hole 83. Before draining, the first outlet valve 8121 is closed so that the condensate flowing into guide hole 812 can be temporarily stored in guide hole 812. After the condensate is discharged from the drain port, drain valve 843 and exhaust valve 844 are closed. Then, the second outlet valve 831 is opened first so that the high-pressure saturated steam in heat exchange chamber 51 enters the liquid collection frame 84 first, thereby gradually balancing the pressure difference between heat exchange chamber 51 and liquid collection frame 84. Then, the first outlet valve 8121 is opened, so that the condensate in guide hole 812 re-enters the liquid collection frame 84 for collection. Furthermore, in the above process, the first liquid outlet valve 8121 is closed before the liquid is drained, so that the continuously generated condensate is temporarily stored in the guide hole 812 and will not accumulate in the vent hole 83. After the liquid is drained, the second liquid outlet valve 831 is opened first to gradually balance the pressure difference between the heat exchange chamber 51 and the liquid collection frame 84. Then the first liquid outlet valve 8121 is opened to allow the condensate in the guide hole 812 to re-enter the liquid collection frame 84 for collection. This avoids water hammer caused by the instantaneous pressure difference between the heat exchange chamber 51 and the liquid collection frame 84, further eliminating the impact damage of water hammer on the liquid collection frame 84 and the structural fatigue risk caused by device vibration.

[0039] like Figure 2 , Figure 4 , Figure 5As shown, in existing technologies, the overflow prevention of the liquid collection frame 84 typically employs a single water level sensor for monitoring. During prolonged daily use, the water level sensor operates in a high-temperature, high-pressure environment. The presence of high-pressure saturated steam and condensate in this environment continuously corrodes the sensor. Furthermore, the metal probe and terminals on the sensor are prone to oxidation and corrosion under continuous immersion, leading to poor contact or signal transmission obstruction. Simultaneously, the sensor's built-in sealing ring gradually ages and cracks due to prolonged exposure to high temperatures, allowing high-pressure saturated steam and condensate to seep into the internal circuitry, causing short circuits and signal drift. Ultimately, this results in the water level sensor malfunctioning and losing its liquid level monitoring function. When the water level sensor fails, the reactor cannot sense the liquid level and promptly shut off the vent 83, causing condensate to accumulate in the liquid collection frame 84 and overflow. When the sensor is damaged, the reactor cannot prevent overflow on its own, and its condensate is likely to overflow into the heat exchange chamber 51. The overflowing condensate will flow back into the vent 83. If the second liquid outlet valve 831 is closed at this time, the overflowing liquid will accumulate on the second liquid outlet valve 831. When the condensate in the collection frame 84 is discharged, and the second liquid outlet valve 831 needs to be opened again, the condensate accumulated on the second liquid outlet valve 831 will cause water hammer due to the high pressure in the heat exchange chamber 51. In order to avoid the above phenomenon, in another embodiment of the present invention, the liquid collection mechanism 8 further includes a fixed frame 85, a sliding sleeve 851, a sliding column 852 and a float 853. The fixed frame 85 is fixedly connected to the inner wall of the collection frame 84, the sliding sleeve 851 is fixedly connected to the upper surface of the fixed frame 85, the sliding column 852 is sleeved inside the sliding sleeve 851, and the float 853 is fixedly connected to the end of the sliding column 852 near the second liquid outlet valve 831.

[0040] Specifically, a first sliding groove is formed inside the sliding sleeve 851 along the axial direction of the jacket 5. The sliding column 852 is located in the first sliding groove, and the sliding column 852 and the first sliding groove form a sliding guide fit. The float plate 853 is coaxially arranged on the sliding column 852, and the float plate 853 is located directly below the bottom opening of the vent hole 83. A sensor is provided at the bottom of the jacket 5. The sensor is located at the bottom opening of the vent hole 83, and the sensor is signal connected to the first liquid outlet valve 8121. The sensor can be a pressure sensor, a contact sensor, etc., which are all existing technologies and will not be described in detail. There are two sets of fixing frames 85, sliding sleeves 851, sliding columns 852 and float plates 853. The two sets of fixing frames 85, sliding sleeves 851, sliding columns 852 and float plates 853 are symmetrically arranged in the liquid collection frame 84 along the axis of the jacket 5. The first liquid outlet valve 8121, the second liquid outlet valve 831, the drain valve 843 and the exhaust valve 844 are all electrically controlled valves. These electric valves are existing technologies and will not be described in detail.

[0041] It should be further explained that, in the initial state, there is no condensate in the liquid collection frame 84 or the liquid level is below the preset threshold. The float 853 is at its lowest position under its own gravity, and the upper surface of the float 853 maintains a distance from the bottom opening of the vent 83. At this time, both the first liquid outlet valve 8121 and the second liquid outlet valve 831 are in the open state, and condensate can flow normally into the liquid collection frame 84 through the guide hole 812 and the vent 83. As condensate continues to be generated in the heat exchange chamber 51 and flows into the liquid collection frame 84, the liquid level in the liquid collection frame 84 decreases. As the water level gradually rises, the float 853 rises synchronously under the buoyancy of the condensate, simultaneously driving the sliding column 852 to slide vertically upwards along the first sliding groove of the sliding sleeve 851. During this process, if the water level sensor malfunctions and cannot monitor the condensate level or send a control signal, the first outlet valve 8121 and the second outlet valve 831 will remain open, and condensate will continuously flow into the collection frame 84. The water level will exceed the original preset threshold and continue to rise, causing the float 853 to continue sliding upwards. At this time, the upper surface of the float 853... The bottom opening of the vent 83 is physically blocked, preventing condensate from flowing into the collection frame 84. Simultaneously, the upper surface of the float 853 contacts the sensor, which sends a signal to close the first outlet valve 8121, cutting off the condensate channel from the guide hole 812 to the vent 83. This prevents further condensate from entering the vent 83 and collection frame 84, thus stopping the liquid level in the collection frame 84 from rising and preventing condensate from overflowing into the heat exchange chamber 51. In this embodiment, if the water level sensor malfunctions... When the buoyancy of the float plate 853 is used to automatically respond to the change in the liquid level of the condensate in the collection frame 84, it blocks the bottom opening of the vent hole 83 and cuts off the condensate return channel when the liquid level reaches the critical overflow level. At the same time, it triggers the sensor to close the first liquid outlet valve 8121, cuts off the condensate upstream channel, and prevents condensate from entering the vent hole 83 and accumulating when the second liquid outlet valve 831 is closed. This also avoids water hammer caused by the high pressure in the heat exchange chamber 51 when the second liquid outlet valve 831 is opened again.

[0042] like Figure 4 , Figure 5 , Figure 6 , Figure 7 As shown, when the collection frame 84 is full of condensate and the float plate 853 has risen to the bottom opening of the vent hole 83 and is tightly sealed, the vent valve 844 needs to be opened to release the high-pressure steam in the collection frame 84 before drainage. However, at this time, the condensate level in the collection frame 84 is too high, that is, the condensate level is close to the vent valve 844, which makes it easy for the high-pressure saturated steam to carry some condensate out at high speed during the release process, which can easily cause water hammer and vibration. In order to avoid the above phenomenon, in this embodiment, the collection frame 84 includes a fixed frame 841 and a movable frame 842. The fixed frame 841 is fixedly connected to the bottom of the jacket 5, and the movable frame 842 is slidably connected to the outer circumferential surface of the fixed frame 841.

[0043] Specifically, the liquid collection mechanism 8 also includes a sealing groove 8421, a fixing groove 8422, a fixing rod 86, a first spring 862, a fixing block 88, an iron block 881, and an electromagnet 882. The sealing groove 8421 and the fixing groove 8422 are formed in the inner ring of the movable frame 842. The fixing rod 86 is fixedly connected to the lower surface of the jacket 5 and is set in the fixing frame 841. The fixing rod 86 has a fifth through groove in the radial direction of the fixing frame 841. The fixing block 88 is slidably connected in the fifth through groove. One end of the first spring 862 is fixed to the fixing block 88, and the other end is fixed to the wall of the fifth through groove. The iron block 881 is fixedly connected to the fixing block 88, and the electromagnet 882 is fixedly connected to the inner circumferential surface of the fixing frame 841.

[0044] A sealing groove 8421 is radially opened along the movable frame 842, and a sealing ring is installed inside the sealing groove 8421. The fixing groove 8422 is parallel to the sealing groove 8421 and is located below the sealing groove 8421. A fourth through groove is radially opened along the movable frame 842 in the fixing frame 841. The opening of the fourth through groove faces the movable frame 842. The fixing block 88 is slidably fitted into the fourth through groove. The side of the fixing block 88 near the movable frame 842 has an inclined surface. The end of the fixing block 88 near the inclined surface is inserted into the fixing groove 8422. The fixing bracket 85 is fixedly connected to the inner wall of the fixing frame 841. The drain valve 843 is fixed to the lower surface of the movable frame 842, and the exhaust valve 844 is fixed to the outer circumference of the fixing frame 841.

[0045] It should be further explained that, in the initial state, the fixed frame 841 and the movable frame 842 are in an axially locked state. That is, at this time, the end of the fixed block 88 near its own inclined surface is inserted into the fixed groove 8422, fixing the fixed frame 841 and the movable frame 842 relative to each other. The electromagnet 882 is initially energized. After being energized, it generates magnetic force to attract the iron block 881. At this time, the first spring 862 is in a compressed state. When the float plate 853 rises to the bottom opening of the vent hole 83 and fits tightly to achieve a seal, the condensate in the liquid collection frame 84 is full and the liquid level is close to the position of the exhaust valve 844. When the exhaust and depressurization operation is about to begin, the electromagnet 882 is first de-energized, its magnetic force disappears, and the attraction to the iron block 881 is released. At this time, the first spring 862, which was in a compressed state, elastically resets and pushes the fixing block 88 away from the electromagnet 882 along the fifth through slot of the fixing rod 86. This causes the inclined end of the fixing block 88 to completely disengage from the fixing groove 8422 of the inner ring of the movable frame 842. At this time, the axial locking state between the fixing frame 841 and the movable frame 842 is released. After the locking between the fixing frame 841 and the movable frame 842 is released, the movable frame 842 is subjected to its own... Due to the combined effects of gravity and the gravity of the internal condensate, the movable frame 842 slides vertically downwards along the outer periphery of the fixed frame 841. During this process, the sealing ring in the inner sealing groove 8421 of the movable frame 842 remains tightly fitted to the sliding contact surfaces of the fixed frame 841 and the movable frame 842. After the movable frame 842 slides down, the overall volume of the liquid collection frame 84 changes from the single-chamber volume of the fixed frame 841 to the combined volume of the fixed frame 841 and the movable frame 842. As the volume of the fixed frame 841 and the movable frame 842 increases, the air pressure in the liquid collection frame 84 decreases, and the internal condensate level drops rapidly with the increase in volume, moving away from the fixed frame. At the position of the vent valve 844 on the outer periphery of frame 841, after the condensate level stabilizes at a position far away from the vent valve 844, the vent valve 844 is opened. The high-pressure saturated steam in the collection frame 84 is discharged separately along the vent valve 844. At this time, because the condensate level is far away from the vent valve 844, and the volume of the collection frame 84 increases, the air pressure in the collection frame 84 decreases. As a result, the condensate will not be sprayed out at high speed during the steam release process, avoiding water hammer and equipment vibration caused by high-pressure saturated steam carrying liquid. Then, the drain valve 843 on the lower surface of the movable frame 842 is opened to discharge the condensate.

[0046] like Figure 4 , Figure 5 , Figure 6 , Figure 7As shown, in order to achieve the fixation of the float 853 and the synchronous unlocking of the fixed frame 841 and the movable frame 842, in this embodiment, the liquid collection mechanism 8 also includes a pressure plate 854, a slot 8541, an inclined block 861, a guide post 87, a baffle 871, and a second spring 872. The pressure plate 854 is fixedly connected to the side of the float 853 near the second liquid outlet valve 831. The slot 8541 is opened on one side of the pressure plate 854. The inclined block 861 is slidably connected to the fixed rod 86. The guide post 87 is fixedly connected to the lower surface of the jacket 5. The baffle 871 is slidably connected to the outside of the guide post 87. The second spring 872 is located between the baffle 871 and the jacket 5. The two ends of the second spring 872 are respectively connected to the baffle 871 and the jacket 5.

[0047] Specifically, the pressure plate 854 is coaxially mounted on the float plate 853, and the upper surface of the pressure plate 854 faces the bottom opening of the vent hole 83. The groove 8541 is radially opened along the pressure plate 854, with the opening facing the fixing rod 86. The fixing rod 86 has a second through groove radially opened along the pressure plate 854. The inclined locking block 861 is slidably assembled in the second through groove of the fixing rod 86. Figure 6 As shown, the inclined block 861 adopts a combination design of upper and lower inclined surfaces on the side near the axis of the pressure plate 854 to form a triangular structure. The end of the inclined block 861 away from its own inclined surface is fixed to the fixing block 88. The baffle 871 has a third through groove along the axis of the pressure plate 854. The guide post 87 is slidably connected in the third through groove. The baffle 871 is correspondingly arranged above the pressure plate 854. The side of the baffle 871 away from the axis of the pressure plate 854 is tightly fitted with the triangular tip of the inclined block 861.

[0048] It should be further explained that during use, in the initial state, the electromagnet 882 is not energized, the first spring 862 is in a compressed state, and the inclined end of the fixing block 88 is inserted into the fixing groove 8422 of the movable frame 842. When the float 853 rises due to the buoyancy of the condensate water until it seals the bottom opening of the vent hole 83, the float 853 simultaneously drives the coaxially fixed pressure plate 854 to move upward. At the same time, the pressure plate 854 and the float 853 move upward due to the rise of the liquid level. When the pressure plate 854 is in contact with the baffle 871, the baffle 871 blocks the pressure plate 854 under the elastic force of the second spring 872. At this time, the buoyancy of the float 853 at this position is less than that of the second spring 872. 2. The float plate 853 cannot continuously rise, causing the pressure plate 854 to sink into the condensate. However, as the condensate continues to flow into the collection frame 84, causing the condensate level to rise continuously, the buoyancy of the float plate 853 gradually increases. When the buoyancy of the float plate 853 exceeds the elastic force of the second spring 872, that is, when the buoyancy of the float plate 853 can simultaneously push the pressure plate 854 and the baffle 871 to rise, the second spring 872 is compressed, causing the pressure plate 854 to gradually rise to the bottom opening of the vent 83 until it is tightly fitted, achieving initial physical sealing. At the same time, the upper surface of the pressure plate 854 contacts the sensor, and the sensor sends a signal and closes the first outlet valve 8121. During this process, the pressure plate 853... As the bottom opening of the vent 83 is closed, the upward movement of the baffle 871 causes the inclined locking block 861 to no longer contact the baffle 871, meaning the second through groove is fully exposed. The slot 8541 on the pressure plate 854 is aligned with the inclined locking block 861. Under the pushing force of the first spring 862, the inclined locking block 861 is engaged in the slot 8541, achieving radial locking and restricting the horizontal displacement of the pressure plate 854 and the float 853. At the same time, the fixing block 88 slides synchronously, and its inclined end gradually disengages from the fixing groove 8422. The axial fixing constraint between the fixing frame 841 and the movable frame 842 is completely released, thereby achieving the synchronous unlocking of the float 853 and the fixing frame 841 and the movable frame 842. And when the liquid collection frame... When the high-pressure saturated steam and condensate in 84 need to be drained and reset, the operator first manually pushes the movable frame 842 back to its initial position, energizes the electromagnet 882, and the electromagnet 882 attracts the iron block 881, causing the fixed block 88 to slide in the opposite direction. The fixed block 88 simultaneously pulls the inclined locking block 861 out of the slot 8541, releasing the fixation on the pressure plate 854. When the inclined locking block 861 moves, it pushes the baffle 871 to slide upward along the guide post 87. The second spring 872 is compressed and stores energy. The float 853 and the pressure plate 854 fall back to their initial positions under their own weight. The baffle 871 resets under the elastic reset force of the second spring 872 and re-fits the triangular tip of the inclined locking block 861, waiting for the next linkage action.

[0049] The embodiments described above are merely examples of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention.

Claims

1. A jacketed cooling and temperature-controlled reactor, comprising a tank body (1), an inlet (4) opened on the upper surface of the tank body (1), a jacket (5), a steam inlet pipe (6), a discharge valve (7) and a steam outlet pipe (9), wherein the jacket (5) is fixed to the outer circumferential surface of the tank body (1), the steam inlet pipe (6) is fixed to the outer circumferential surface of the jacket (5), the discharge valve (7) is fixed to the lower surface of the tank body (1), and the steam outlet pipe (9) is fixed to the lower surface of the jacket (5); Its features are, It also includes a liquid collection mechanism (8) disposed on the lower surface of the jacket (5). The liquid collection mechanism (8) includes a first annular groove (81), a first water guide plate (811), a vent (83), a liquid collection frame (84), a drain valve (843), and an exhaust valve (844). The first annular groove (81) is opened at the bottom of the inner side of the jacket (5). The first water guide plate (811) is fixed in the first annular groove (81). The vent (83) is opened at the bottom of the jacket (5). A second drain valve (831) is installed at the bottom opening of the vent (83). The liquid collection frame (84) is fixed on the lower surface of the jacket (5). The exhaust valve (844) is fixedly connected to the side of the liquid collection frame (84). The drain valve (843) is fixedly connected to the bottom of the liquid collection frame (84).

2. The jacketed cooling and temperature-controlled reactor according to claim 1, characterized in that, The vent (83) is connected to the first annular groove (81). There are two first water guide plates (811). Both first water guide plates (811) are fixedly connected to the bottom of the first annular groove (81). The two first water guide plates (811) are arranged symmetrically. There are also two vents (83). The two vents (83) are arranged symmetrically along the axis of the jacket (5). The two first water guide plates (811) are respectively located on both sides of the two vents (83). The first water guide plate (811) is a C-shaped arc plate structure. The axial height of the first water guide plate (811) gradually decreases from the middle to both ends. The two first water guide plates (811) are combined into a circular structure. The two vents (83) are respectively located at the connection of the two ends of the two first water guide plates (811).

3. The jacketed cooling and temperature-controlled reactor according to claim 1, characterized in that, The liquid collection mechanism (8) also includes a guide hole (812), a first liquid outlet valve (8121), a second annular groove (8122), a second water guide plate (8123), and a conical plate (82). The guide hole (812) is opened at the bottom of the jacket (5). The first liquid outlet valve (8121) is fixedly connected inside the guide hole (812). The second annular groove (8122) is opened at the bottom of the inner side of the jacket (5). The second water guide plate (8123) is fixedly connected to the bottom of the second annular groove (8122). The conical plate (82) is fixedly connected to the bottom of the inner side of the jacket (5).

4. A jacketed cooling and temperature-controlled reactor according to claim 3, characterized in that, The second annular groove (8122) is located at the lowest point of the heat exchange chamber (51). The first liquid outlet valve (8121) is located at one end of the guide hole (812) near the second liquid outlet valve (831). The second annular groove (8122) is located on the outer ring of the first annular groove (81) and is coaxially arranged. A raised ring is provided between the second annular groove (8122) and the first annular groove (81). One end of the guide hole (812) near the inner cavity of the jacket (5) is connected to the bottom of the second annular groove (8122).

5. A jacketed cooling and temperature-controlled reactor according to claim 4, characterized in that, The liquid collection mechanism (8) also includes a fixed frame (85), a sliding sleeve (851), a sliding column (852), and a float (853). The fixed frame (85) is fixedly connected to the inner wall of the liquid collection frame (84), the sliding sleeve (851) is fixedly connected to the upper surface of the fixed frame (85), the sliding column (852) is sleeved inside the sliding sleeve (851), and the float (853) is fixedly connected to the end of the sliding column (852) near the second liquid outlet valve (831).

6. A jacketed cooling and temperature-controlled reactor according to claim 5, characterized in that, The sliding sleeve (851) has a first sliding groove inside along the axial direction of the jacket (5). The sliding column (852) is located in the first sliding groove. The sliding column (852) and the first sliding groove form a sliding guide fit. The float plate (853) is coaxially arranged on the sliding column (852). The float plate (853) is located directly below the bottom opening of the vent hole (83). A sensor is provided at the bottom of the jacket (5). The sensor is located at the bottom opening of the vent hole (83). The sensor is connected to the first liquid outlet valve (8121) by signal.

7. A jacketed cooling and temperature-controlled reactor according to claim 5, characterized in that, The liquid collection frame (84) includes a fixed frame (841) and a movable frame (842). The fixed frame (841) is fixedly connected to the bottom of the jacket (5), and the movable frame (842) is slidably connected to the outer periphery of the fixed frame (841).

8. A jacketed cooling and temperature-controlled reactor according to claim 7, characterized in that, The liquid collection mechanism (8) also includes a sealing groove (8421), a fixing groove (8422), a fixing rod (86), a first spring (862), a fixing block (88), an iron block (881), and an electromagnet (882). The sealing groove (8421) and the fixing groove (8422) are opened in the inner ring of the movable frame (842). The fixing rod (86) is fixedly connected to the lower surface of the jacket (5) and set in the fixing frame (841). The fixing rod (86) has a fifth through groove in the radial direction of the fixing frame (841). The fixing block (88) is slidably connected in the fifth through groove. One end of the first spring (862) is fixed on the fixing block (88), and the other end is fixed on the wall of the fifth through groove. The iron block (881) is fixedly connected to the fixing block (88), and the electromagnet (882) is fixedly connected to the inner circumferential surface of the fixing frame (841).

9. A jacketed cooling and temperature-controlled reactor according to claim 7, characterized in that, A sealing groove (8421) is radially opened along the movable frame (842), and a sealing ring is installed in the sealing groove (8421). A fixing groove (8422) is parallel to the sealing groove (8421) and is located below the sealing groove (8421). A fourth through groove is radially opened along the movable frame (842), and the opening of the fourth through groove faces the movable frame (842). A fixing block (88) is slidably fitted into the fourth through groove. The side of the fixing block (88) near the movable frame (842) is inclined. The end of the fixing block (88) near the inclined surface is inserted into the fixing groove (8422). A fixing bracket (85) is fixedly connected to the inner wall of the fixing frame (841). A drain valve (843) is fixed to the lower surface of the movable frame (842), and an exhaust valve (844) is fixed to the outer circumference of the fixing frame (841).

10. A jacketed cooling and temperature-controlled reactor according to claim 7, characterized in that, The liquid collection mechanism (8) also includes a pressure plate (854), a slot (8541), an inclined block (861), a guide post (87), a baffle (871), and a second spring (872). The pressure plate (854) is fixedly connected to the side of the float (853) near the second liquid outlet valve (831). The slot (8541) is opened on one side of the pressure plate (854). The inclined block (861) is slidably connected inside the fixed rod (86). The guide post (87) is fixedly connected to the lower surface of the jacket (5). The baffle (871) is slidably connected to the outside of the guide post (87). The second spring (872) is located between the baffle (871) and the jacket (5). The two ends of the second spring (872) are respectively connected to the baffle (871) and the jacket (5).

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