Safety reaction kettle for chemical production
By installing a boiling protection and vapor pressure regulating mechanism on the lid of the chemical reactor, the safety hazards caused by pressure buildup inside the reactor are solved, and the safety of pressure control and treatment of harmful gases inside the reactor is improved.
Patent Information
- Application Number
- CN202522027109.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-22
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-09-22
AI Technical Summary
Existing chemical reactors are prone to rapid pressure buildup during exothermic reactions, which may lead to boiling over or explosion. Furthermore, the release of harmful gases during depressurization poses a serious threat to the environment and personnel.
A boiling protection mechanism and a vapor pressure regulating mechanism are installed on the reactor lid, including a pressure relief pipe, a sealing cover, a solenoid valve, and a metal coil. The sealing cover buffers high-temperature gas, the solenoid valve absorbs harmful gases, and the metal coil cools the reactor lid, reducing the vapor pressure inside the reactor.
It significantly reduces the rate of steam pressure increase inside the reactor, reduces the incidence of boiling over, reduces environmental impact, and improves the safety of the reactor.
Smart Images
Figure CN224672679U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the field of chemical equipment, in particular to a safe reaction kettle for chemical production. BACKGROUND
[0002] The reaction kettle is a kind of special container for bearing various chemical reactions in chemical production, and most of the chemical reactions involved in chemical production are exothermic reactions, some reactions start violently, release a large amount of heat, and water vaporizes rapidly, and some reactions need to be heated at the beginning, but a large amount of reaction heat is generated with the deepening of reaction, and heat accumulation causes continuous evaporation of water, which will cause the pressure in the kettle to accumulate rapidly, and even cause violent boiling or explosion in severe cases, which seriously affects the safety of on-site production, in order to reduce the danger of high pressure in the reaction kettle, some reaction kettles currently have a pressure relief port installed on the kettle cover, and a special pressure gauge is installed in the kettle to detect the pressure in the kettle, and the pressure relief port is opened directly when the pressure exceeds the standard, but this method is too simple and direct, and not only water vapor is discharged, but also harmful gases generated in the reaction process, which has a greater impact on the environment, on the other hand, the high-temperature gas is discharged too fast and too suddenly in this case, which still has the possibility of causing harm to on-site personnel. SUMMARY
[0003] The utility model mainly solves the technical problem of providing a safe reaction kettle for chemical production, which can reduce the pressure accumulation speed in the kettle and reduce the harm of violent boiling.
[0004] To solve the above technical problems, one of the technical schemes of the utility model is: provide a kind of safety reaction kettle for chemical production, the safety reaction kettle for chemical production includes reaction kettle body, kettle cover and stirring mechanism, the stirring mechanism includes drive motor, stirrer and motor support, the motor support is fixed in the middle position of the kettle cover, the drive motor is installed on the motor support, the power output end of the drive motor is connected with the stirrer through the transmission shaft of kettle cover reducer, the safety reaction kettle for chemical production further includes violent boiling protection mechanism and steam pressure regulating mechanism, the violent boiling protection mechanism and steam pressure regulating mechanism are all installed on kettle cover;The violent boiling protection mechanism includes pressure relief pipe, pressure cap, sealing cover and sealing cover base, the pressure relief pipe is arranged at one side of the kettle cover edge, the pressure cap is installed on the pressure relief pipe, the sealing cover base is arranged around the pressure relief pipe, the sealing cover is fixedly installed on the sealing cover base, the pressure relief pipe is covered in the sealing cover, the sealing cover top is equipped with gas pipe interface and barometer, the gas pipe interface is connected with water washing absorber by gas pipe, the solenoid valve is installed on the gas pipe body, and the solenoid valve is signal connected with the barometer;The steam pressure regulating mechanism includes coil pipe fixing groove, metal coil pipe and coil pipe protection cover, the coil pipe fixing groove is arranged at the top of the kettle cover and around the motor support, the metal coil pipe is installed in the coil pipe fixing groove, the metal coil pipe is connected with circulating cooling water, and the coil pipe protection cover is installed above the coil pipe fixing groove.
[0005] In a preferred embodiment of the utility model, the kettle cover bottom surface is evenly provided with a plurality of reflux guide cones.
[0006] In a preferred embodiment of the utility model, the coil pipe protection cover is filled with heat insulation cotton.
[0007] In a preferred embodiment of the utility model, the reaction kettle body outside is further provided with a reaction kettle heat exchange sleeve, the lower edge of the reaction kettle heat exchange sleeve installation position is provided with a heat exchange sleeve supporting plate, and the reaction kettle heat exchange sleeve includes heat exchange pipeline and heat insulation protection sleeve.
[0008] In a preferred embodiment of the utility model, the distance from the top of the pressure relief pipe to the top of the sealing cover is less than the height of the pressure cap, a plurality of air holes are arranged at the position close to the pipe opening of the pressure relief pipe body, and the air holes just flash out when the pressure cap is completely lifted up.
[0009] In a preferred embodiment of the utility model, the seal cover base top sets up the ladder structure, the seal cover and the top step of ladder structure are connected together through the threaded connection mode, the seal cover outer diameter is same with the bottom step outer diameter of ladder structure, the seal cover and the seal cover base connection outside joint are equipped with rubber sealing ring.
[0010] In a preferred embodiment of the utility model, the kettle mouth inboard of the reaction kettle body top sets up the support, and sets up the flange ring outside, the kettle cover middle sets up the boss matched with the reaction kettle body inner diameter, and the boss outer ring sets up the pressure ring matched with the reaction kettle body top flange ring size, when the kettle cover is pressed on the kettle mouth, the pressure ring and the flange ring are pressed together, the boss bottom and the support top just abut, and the contact surface between the pressure ring and the flange ring is also equipped with sealing ring. The lower surface of the kettle cover is coated with flexible anticorrosive coating, and the flexible anticorrosive coating is polytetrafluoroethylene coating.
[0011] In a preferred embodiment of the utility model, the inner wall of the reaction kettle is coated with high polymer ceramic polymeric material coating.
[0012] The utility model discloses a kind of reaction kettle, including kettle cover, reaction kettle body and sealing cover, the kettle cover is connected to the reaction kettle body, and the sealing cover is connected to the kettle cover, the kettle cover is provided with the flange ring, and the sealing cover is provided with the flange ring, the sealing cover is provided with the flange ring, and the sealing cover is provided with the flange ring, and the sealing cover is provided with the flange ring, and the sealing cover is provided with the flange ring, and the sealing cover is provided with the flange ring, and the sealing cover is provided with the flange ring, and the sealing cover is provided with the flange ring, and the sealing cover are connected together through the threaded connection mode, the seal cover outer diameter is same with the bottom of the kettle cover and the sealing cover connection outside joint. BRIEF DESCRIPTION OF DRAWINGS
[0013] Figure 1 It is the three-dimensional structure schematic diagram of a preferred embodiment of the utility model; Figure 2 It is the local structure amplification schematic diagram in the utility model shown; The marks of components in the drawings are as follows: 1. reactor body, 2. kettle cover, 3. drive motor, 4. stirrer, 5. bottom valve, 6. reactor heat exchange sleeve, 7. metal coil, 8. coil protection cover, 9. sealing cover, 10. air pressure gauge, 11. pressure cap, 12. rubber sleeve, 13. solenoid valve, 14. water washing absorber; 101. flange ring, 102. high polymer ceramic polymer coating; 103. support, 104. lifting positioning seat, 105. temperature control sleeve positioning block, 106. rubber sealing ring; 201. motor support, 202. cleaning port, 203. feed pipe, 204. coil fixing groove, 205. polytetrafluoroethylene coating, 206. pressure relief pipe, 207. air hole, 208. sealing cover base, 209. backflow guide cone. DETAILED DESCRIPTION
[0014] The advantages and features of the present application will be more easily understood by those skilled in the art from the preferred embodiments of the present application described in detail below in conjunction with the accompanying drawings, so that the scope of protection of the present application can be more clearly defined.
[0015] Please refer to Figure 1 and Figure 2 , the present application comprises: A safe reaction kettle for chemical production, the safe reaction kettle for chemical production includes a reaction kettle body 1, a kettle cover 2 and a stirring mechanism, the stirring mechanism includes a drive motor 3, a stirrer 4 and a motor support 201, the kettle opening inside of the top of the reaction kettle body 1 is provided with a support 103, and the outside is provided with a flange ring 101, the bottom of the reaction kettle body 1 is provided with a discharge port, the discharge port is connected with a bottom valve 5, the middle of the kettle cover 2 is provided with a boss matched with the inner diameter of the reaction kettle body 1, the outer ring of the boss is provided with a compression ring matched in size with the flange ring 101 on the top of the reaction kettle body, when the kettle cover is compressed on the kettle opening, the bottom of the boss just abuts against the top of the support 103, at this time, the compression ring and the flange ring 101 are tightly compressed together through a plurality of circumferentially arranged bolts, and a sealing ring 106 is installed between the contact surfaces of the compression ring and the flange ring 101, and six lifting positioning seats 104 are uniformly arranged on the outside of the reaction kettle body 1, a reaction kettle heat exchange sleeve 6 is sleeved on the outer wall of the reaction kettle body 1 below the lifting positioning seat 104, and a heat exchange sleeve supporting plate 105 is arranged at the lower edge of the installation position of the reaction kettle heat exchange sleeve 6, so as to support the entire reaction kettle heat exchange sleeve 6 and prevent it from sliding down, the reaction kettle heat exchange sleeve 6 includes heat exchange pipelines and heat insulation protective sleeves, the heat exchange pipelines are arranged around the reaction kettle body of the reaction kettle, and the heat insulation protective sleeves are wrapped on the heat exchange pipelines. By passing heat exchange liquid into the heat exchange pipelines, the reaction liquid in the kettle can be heated or cooled according to the reaction requirements, and the heat insulation protective sleeves can prevent the surface temperature of the kettle body from being too high to scald the on-site workers.
[0016] The kettle cover 2 is provided with a feed port, a cleaning port 202 and a motor support, the feed port has a plurality of, each feed port is provided with a dedicated feed pipe 203, the cleaning port 202 is kept closed and is opened only when cleaning and maintenance, the motor support 201 is fixed in the middle position of the kettle cover 2, the driving motor 3 is installed on the motor support 201, the power output end of the driving motor 2 is connected with the transmission shaft of the stirrer 4 through the speed reducer.
[0017] The safety reaction kettle for chemical production further comprises a boiling protection mechanism and a steam pressure adjusting mechanism, both of which are installed on the kettle cover 2, the boiling protection mechanism comprises a pressure relief pipe 206, a pressure cap 11, a sealing cover 9 and a sealing cover base 208, the pressure relief pipe 206 is arranged on one side of the kettle cover 2 close to the edge, the pressure cap 11 is installed on the pressure relief pipe 206, the sealing cover base 208 is arranged around the pressure relief pipe 206, the sealing cover 9 is fixedly installed on the sealing cover base 208, the pressure relief pipe 206 is covered in the sealing cover 9, the top of the sealing cover 9 is provided with a gas pipe interface and a pressure gauge 10, the gas pipe interface is externally connected with a water washing absorber 14 through a gas pipe, an electromagnetic valve 13 is installed on the gas pipe, and the electromagnetic valve 13 is signal connected with the pressure gauge 10; the steam pressure adjusting mechanism comprises a coil pipe fixing groove 204, a metal coil pipe 7 and a coil pipe protection cover 8, the coil pipe fixing groove 204 is arranged on the top of the kettle cover 2 and surrounds the motor support 201, the metal coil pipe 7 is installed in the coil pipe fixing groove 204, the metal coil pipe 7 is externally connected with circulating cooling water, and the coil pipe protection cover 8 is fixedly installed above the coil pipe fixing groove 204 through bolts and can prevent sundries from directly falling on the coil pipe.
[0018] A plurality of reflux guide cones 209 are uniformly arranged on the bottom surface of the kettle cover 2. By arranging the reflux guide cones 209, the speed of the liquid droplets condensed on the kettle cover 2 around under the action of gravity and flowing back into the reaction kettle body 1 can be improved, and the rate of pressure rise in the reaction kettle can be reduced.
[0019] The coil pipe protection cover 8 is filled with heat insulation cotton. The purpose of filling the heat insulation cotton is to reduce the heat absorption of the intermediate metal coil pipe 7 from the upper part, concentrate the heat absorption direction on the kettle cover 2 below, improve the condensation effect of the lower surface of the kettle cover 2, and on the other hand, provide certain support force for the coil pipe protection cover 8 and prevent the cover body from sinking.
[0020] The distance from the top of the pressure relief pipe 206 to the top of the sealing cover 9 is less than the height of the pressure cap 11, and the pipe body of the pressure relief pipe 206 is provided with a plurality of air holes 207 near the pipe opening position, and the air holes 207 just flash out when the pressure cap is completely lifted up. In actual implementation, the distance between the pressure cap 11 and the top of the sealing cover 9 is about 20 cm, the air holes 207 are six long holes with a length of about 5 cm and a width of about 1.5 cm, and the air holes 207 begin to flash out when the pressure cap 11 is lifted to about 10 cm. By setting the air hole 207 steam release structure, the steam release speed when the steam pressure is too large can be reduced, the pressure cap 11 can be prevented from flying out directly when boiling over, and the pressure in the kettle can be gently lowered.
[0021] The top of the sealing cover base 208 is provided with a stepped structure, the sealing cover 9 and the top step of the stepped structure are sleeved together in a threaded connection manner, the outer diameter of the sealing cover 9 is the same as the outer diameter of the bottom step of the stepped structure, and a rubber sealing ring 106 is sleeved at the outer joint between the sealing cover 9 and the sealing cover base 208. By adopting this structure, the sealing effect of the sealing cover 9 can be effectively improved, and harmful gas can be prevented from escaping into the surrounding environment.
[0022] The lower surface of the kettle cover 2 and the inner wall of the reaction kettle body 1 are coated with a corrosion-resistant coating, wherein the corrosion-resistant coating coated on the lower surface of the kettle cover is a tetrafluoroethylene coating 205 with a thickness of about 1 mm. The reason for using the polytetrafluoroethylene coating 205 is that the polytetrafluoroethylene coating 205 has a certain elasticity on the basis of ensuring the corrosion resistance, so that the sealing effect of the contact surface can be effectively improved when the bottom of the boss just abuts against the top of the support table 103.
[0023] The corrosion-resistant coating used on the inner wall of the reaction kettle body 1 is a high-molecular ceramic polymer material coating 102 with a thickness of about 2 mm. The high-molecular ceramic polymer material coating 102 not only has good corrosion resistance but also has excellent wear resistance, which can reduce the damage of material movement friction in the kettle during the reaction process.
[0024] The above only describes the embodiments of the present application, and does not limit the patent range of the present application, and any equivalent structure or equivalent process transformation obtained by using the content of the present application specification and drawings, or direct or indirect application in other related technical fields, are also included in the patent protection range of the present application.
Claims
1. A safety reaction vessel for chemical production, comprising a reaction vessel body, a vessel cover, and a stirring mechanism, wherein the stirring mechanism includes a drive motor, a stirrer, and a motor support, the motor support being fixed at the center of the vessel cover, the drive motor being mounted on the motor support, and the power output end of the drive motor being connected to the drive shaft of the stirrer passing through the vessel cover via a reducer, characterized in that, The chemical production safety reactor also includes a boiling protection mechanism and a vapor pressure regulating mechanism, both of which are installed on the reactor lid. The boiling over protection mechanism includes a pressure relief pipe, a pressure cap, a sealing cover, and a sealing cover base. The pressure relief pipe is located on the side of the vessel lid near the edge. The pressure cap is installed on the pressure relief pipe. The sealing cover base is arranged around the pressure relief pipe. The sealing cover is fixedly installed on the sealing cover base, covering the pressure relief pipe inside the sealing cover. The top of the sealing cover is provided with a gas pipe interface and a pressure gauge. The gas pipe interface is connected to a water washing absorber through a gas pipe. A solenoid valve is installed on the gas pipe body. The solenoid valve is connected to the pressure gauge via a signal connection. The steam pressure regulating mechanism includes a coil fixing groove, a metal coil, and a coil protective cover. The coil fixing groove is arranged on the top of the vessel lid and surrounds the motor bracket. The metal coil is installed in the coil fixing groove and is connected to circulating cooling water. The coil protective cover is installed above the coil fixing groove.
2. The safety reactor for chemical production according to claim 1, characterized in that, Multiple reflux guide cones are evenly arranged on the bottom surface of the vessel lid.
3. The safety reactor for chemical production according to claim 1, characterized in that, The protective cover for the coil is filled with heat-insulating cotton.
4. The safety reactor for chemical production according to claim 1, characterized in that, A heat exchange sleeve is also installed on the outside of the reactor body. The heat exchange sleeve includes heat exchange pipes and an insulation protective sleeve. The heat exchange pipes are arranged around the reactor body, and the insulation protective sleeve covers the heat exchange pipes.
5. The safety reactor for chemical production according to claim 4, characterized in that, A heat exchanger support plate is provided at the lower edge of the heat exchanger installation position of the reactor.
6. The safety reactor for chemical production according to claim 1, characterized in that, The distance from the top of the pressure relief pipe to the top of the sealing cover is less than the height of the pressure cap. Several air holes are provided near the pipe opening of the pressure relief pipe. When the pressure cap is fully pushed upward, the air holes just flash out.
7. The safety reactor for chemical production according to claim 1, characterized in that, The top of the sealing cover base is provided with a stepped structure. The sealing cover and the top step of the stepped structure are fitted together by a threaded connection. The outer diameter of the sealing cover is the same as the outer diameter of the bottom step of the stepped structure. A rubber sealing ring is fitted at the outer joint where the sealing cover and the sealing cover base are connected.
8. The safety reactor for chemical production according to claim 1, characterized in that, A support platform is provided on the inner side of the vessel opening at the top of the reactor body, and a flange ring is provided on the outer side. A boss matching the inner diameter of the reactor body is provided in the middle of the vessel cover. A pressure ring matching the size of the flange ring at the top of the reactor body is provided around the boss. When the vessel cover is pressed onto the vessel opening, the pressure ring and the flange ring are pressed together. The bottom of the boss and the top of the support platform just abut against each other. A sealing ring is also provided between the contact surfaces of the pressure ring and the flange ring.
9. The safety reactor for chemical production according to claim 8, characterized in that, The lower surface of the vessel lid is coated with a flexible anti-corrosion coating, which is a polytetrafluoroethylene coating.
10. The safety reactor for chemical production according to claim 1, characterized in that, The inner wall of the reactor is coated with a polymer ceramic polymer material coating.