Experimental high-pressure reaction kettle capable of improving heating efficiency

Abstract

The utility model relates to an experimental high-pressure reaction kettle capable of improving heating efficiency, which solves the technical problems of low heating efficiency and inconvenience in mounting and dismounting of the high-pressure reaction kettle, and comprises a base, a kettle body arranged on the base, a kettle cover buckled on the kettle body, a driving motor arranged on the kettle cover, a stirring device connected with the driving motor, and a connecting shaft pipe connected with the connecting shaft pipe, a plurality of vent holes are formed in the side wall of the connecting shaft pipe, a connecting shaft ring is rotationally connected to the outer sides of the vent holes, a water inlet pipe is fixed to one side of the connecting shaft ring, a sleeve arranged in the kettle body is fixed to the lower end of the connecting shaft pipe, a four-way pipe is fixed to the lower end of the sleeve, a middle pipe shaft is fixed to the lower end of the four-way pipe, and two side pipe shafts are symmetrically fixed to the two sides of the four-way pipe. A plurality of stirring pipe shafts facing the axis are fixed in the vertical direction of the side pipe shaft, a plurality of stirring impellers staggered with the stirring pipe shafts are arranged on the middle pipe shaft in a sleeving manner, the stirring device body is heated, the heating efficiency is higher, circulating heating is achieved in cooperation with the heating cavity, and the heating efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of experimental reactors, in particular to an experimental high-pressure reactor with improved heating efficiency. Background Art

[0002] When our company conducts organic chemical synthesis experiments, it is necessary to add relevant raw materials into the reactor in a certain proportion for high-pressure heating and stirring reaction. It is essential to use a high-pressure reactor when doing experiments.

[0003] The high-pressure reactor used by our company before was filled with heating water in the reactor wall cavity during reaction heating. Now, the reactor is also heated by heating wires in the wall cavity or base. Both heating water and heating wires are heated by heat transfer. However, this heating method is to slowly transfer heat into the reactor body through the inner wall. This transfer method makes the heating speed slow and the reaction efficiency low. Moreover, after the reaction is completed, it is necessary to wait for natural cooling before opening the reactor cover, resulting in low working efficiency.

[0004] In addition, the high-pressure reactor needs to be filled with inert gas for high-pressure reaction, so the reactor body and the reactor cover need to be tightly sealed, and due to the high pressure requirement, the reactor body and the reactor cover are relatively thick and heavy, which makes it extremely inconvenient to install and disassemble, and the overall stability is also lacking. There are two main installation and disassembly methods for the existing reactor body and the reactor cover, one is to connect them with multiple nails, and the other is to connect them with threads. For reactors with high sealing requirements and pressure requirements, it is necessary to install clamps at the joints to secure them, otherwise the reactor will not be tightly fastened.

[0005] On this basis, the utility model improves the original reactor and provides an experimental high-pressure reactor with improved heating efficiency to solve the problem. Utility Model Content

[0006] In view of the above situation, in order to overcome the defects of the prior art, the utility model provides an experimental high-pressure reactor with improved heating efficiency. The utility model has a novel structure and ingenious conception, and effectively solves the technical problems of low heating efficiency and inconvenient installation and disassembly of the existing high-pressure reactor.

[0007] The invention relates to an experimental high-pressure reactor for improving heating efficiency, comprising a base, a reactor body being placed on the base, a reactor cover being buckled on the reactor body, a driving motor being installed on the reactor cover, the driving motor being connected to a stirring device placed in the reactor body, and the stirring device comprising a coupling tube fixedly connected to the driving motor, the lower end opening of the coupling tube having a cavity inside, a plurality of air vents being provided on the side wall of the coupling tube, a coupling ring being rotatably connected to the outer side of the air vents, a water inlet pipe being fixed on one side of the coupling ring, a sleeve placed in the reactor body being fixed at the lower end of the coupling tube, a four-way pipe being fixed at the lower end of the sleeve, a middle pipe axis being fixed at the lower end of the four-way pipe, two symmetrically arranged side pipe axes being fixed on both sides of the four-way pipe, a plurality of stirring pipe axes facing the axis being fixed in the vertical direction of the side pipe axes, and a plurality of stirring impellers being arranged staggered with the stirring pipe axes being sleeved on the middle pipe axis.

[0008] Preferably, the lower end of the middle tube axis is open, and a heating chamber is provided at the lower end of the kettle body. A fixed sleeve is installed at the bottom of the kettle body, and the upper end of the sleeve is connected to the middle tube axis and the lower end is connected to the heating chamber. The lower end of the middle tube axis is rotatably installed in the fixed sleeve, and the heating chamber is connected to a discharge pipe with its end placed outside.

[0009] Preferably, a cooling cavity is provided on the side wall of the kettle body, and a cooling water inlet pipe and a cooling water outlet pipe are provided at the upper end and the lower end of the cooling cavity.

[0010] Preferably, screw bearing seats are symmetrically installed at both ends of the base, and a screw and a limit rod are rotatably installed in the screw bearing seats respectively. A screw knob is fixed to the upper end of the screw, and a support rod is threadedly installed on the screw. The other end of the support rod is slidably installed on the limit rod. A support ring is opened in the middle of the support rod, and a plurality of fixing holes are opened on the support ring.

[0011] Preferably, arc rings are slidably installed on the upper ends of both ends of the support rod, each arc ring is fixed with an adjustment rod placed on the rear side of the kettle body, the two adjustment rods are threadedly connected to the same adjustment screw, the adjustment screw is provided with threads in opposite directions, and an adjustment knob is fixed to the end of the adjustment screw.

[0012] Preferably, a placement groove is provided on the base, a cross-shaped magnet block is fixed in the placement groove, and a clamping groove matching the magnet block is provided at the bottom of the kettle body, a metal sheet is provided in the clamping groove.

[0013] Preferably, four plug-in valves are installed on the kettle cover, and thermocouples, safety valves, electrodes, and four-way valves are respectively installed in the four plug-in valves, and the four-way valve is respectively connected to a gas supply valve, an exhaust valve, and a pressure gauge.

[0014] Preferably, the upper end disassembly cover of the electrode is provided with a polytetrafluoro insulating cover, the lower end of the kettle cover is disassembled and installed with a polytetrafluoro insulating ring, and a screw is rotatably installed below the electrode, and the screw is sleeved with an anode rod placed in the kettle body.

[0015] Preferably, the base is provided with a plug-in slot, into which a protective mesh ring disposed outside the kettle body is plugged.

[0016] The utility model has the following technical effects.

[0017] The utility model heats the stirring device body so that when the reactor reacts, the heating area is large, and heating is carried out while stirring, so that the heating is more uniform, the heat transfer efficiency is faster, and the heating efficiency is higher. In addition, cyclic heating can be achieved by cooperating with the heating chamber to improve the heating efficiency. The cooling chamber can also be used for pre-cooling in advance to meet the requirements of low-temperature experiments and reduce the waiting time after the high-temperature experiment.

[0018] The utility model realizes the support and limitation of the kettle body through the support ring, strengthens the fixation of the kettle body, and facilitates the placement and removal of the kettle body. The arc ring is synchronously controlled in conjunction with the adjusting screw rod, so as to facilitate the clamping and disassembly of the reaction kettle.

[0019] The utility model fixes the kettle body by docking the magnet block with the clamping groove, and avoids short circuit and leakage caused by metal contact by adding a polyfluoroethylene insulating cover and a polyfluoroethylene insulating ring. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0021] Figure 1 It is an overall three-dimensional schematic diagram of the utility model.

[0022] Figure 2 It is a sectional stereoscopic schematic diagram of the utility model.

[0023] Figure 3 It is a schematic sectional front view of the utility model.

[0024] Figure 4 It is a three-dimensional schematic diagram of the rear side of the utility model.

[0025] Figure 5 It is a three-dimensional schematic diagram of the base of the utility model.

[0026] Reference numerals:

[0027] 1-base, 2-kettle body, 3-kettle cover, 4-drive motor, 5-coupling pipe, 6-vent, 7-coupling ring, 8-water inlet pipe, 9-sleeve, 10-four-way pipe, 11-middle pipe shaft, 12-side pipe shaft, 13-mixing pipe shaft, 14-mixing impeller, 15-heating chamber, 16-fixed sleeve, 17-discharge pipe, 18-cooling chamber, 19-cooling water inlet pipe, 20-cooling drain pipe, 21-screw bearing seat, 22-screw, 23-limit rod, 24-screw knob, 25-support rod, 26-support ring, 27-arc ring, 28-adjusting rod, 29-adjusting screw, 30-adjusting knob, 31-placing groove, 32-magnet block, 33-clamping groove, 34-plug-in valve, 35-thermocouple, 36-safety valve, 37-electrode, 38-four-way valve, 39-air supply valve, 40-exhaust valve, 41-pressure gauge, 42-PTFE insulation cover, 43-PTFE insulation ring, 44-screw, 45-anode rod, 46-plug-in groove, 47-protective net ring. DETAILED DESCRIPTION

[0028] The above and other technical contents, features and functions of the present invention are described in detail below with reference to the attached Figures 1 to 5 The details of the embodiments will be clearly presented. The contents mentioned in the following embodiments are all based on the drawings in the specification.

[0029] Various exemplary embodiments of the present invention will be described below with reference to the accompanying drawings.

[0030] The utility model is an experimental high-pressure reactor for improving heating efficiency, which is mainly used for laboratory electrochemical reactions. The utility model comprises a base 1, a display screen and a setting switch are arranged at the front end of the base 1, the display screen is used to display stirring speed and temperature display, etc., a built-in controller is arranged at the side with a power switch, the power supply is 220V, 50Hz, a power line is arranged at the rear end, a kettle body 2 is placed on the base 1, a liner can be placed on the kettle body 2, the liner is made of a polytetrafluoroethylene live inner sleeve, a kettle cover 3 is buckled on the kettle body 2, the kettle cover 3 of the reactor is fixed by nailing (bolts), the kettle body 2 is made of SU316L stainless steel / titanium / Hastelloy, a driving motor 4 is fixed at the concentric part of the kettle cover 3, the driving motor 4 is connected with a stirring device arranged in the kettle body 2, the stirring power is 25W-100W, and the power varies according to the model, the kettle body 2 is hollow inside, and the upper end is open.

[0031] The driving motor 4 is connected to the speed sensor and the controller in the base 1. The stirring device includes a coupling tube 5 fixedly connected to the driving motor 4. The connecting shaft 5 is placed on the upper end of the kettle cover 3. The interior of the coupling tube 5 is a cavity, and the lower end is open. There are circumferentially evenly distributed air holes 6 in the cavity. The air holes 6 are used to pass heated liquid or heated gas, such as hot water or hot steam. The outer side of the air hole 6 is connected to a coupling ring 7 for rotation and sealing. In fact, the coupling ring 7 is fixed. The coupling tube 5 rotates in the coupling ring 7 following the driving motor 4. The coupling ring 7 is fixed to the kettle cover 3 via a support column. A water inlet pipe 8 is fixed on one side of the coupling ring 7 for passing heated liquid or heated gas. Hot liquid or heating gas, a sleeve 9 placed inside the kettle body 2 is fixed at the lower end of the coupling pipe 5, the sleeve 9 rotates with the driving motor 4, a cross-tube 10 is fixed at the lower end of the sleeve 9, a middle pipe axis 11 is fixed at the lower end of the cross-tube 10, two symmetrically arranged side pipe axes 12 are fixed on both sides of the cross-tube 10, each side pipe axis 12 is fixed with a plurality of vertically arranged stirring pipe axes 13 facing the axial direction, a plurality of stirring impellers 14 are sleeved on the middle pipe axis 11, the stirring impellers 14 and the stirring pipe axes 13 are arranged crosswise, the coupling pipe 5, the cross-tube 10, the middle pipe axis 11, the side pipe axes 12 and the stirring pipe axes 13 are hollow inside, but the ends are closed.

[0032] When the heating reaction is carried out, a heating liquid or a heating gas is introduced into the water inlet pipe 8. Taking heating water as an example, water enters the sleeve 9, the four-way pipe 10, the middle pipe axis 11 / the side pipe axis 12, and the stirring pipe axis 13 from the water inlet pipe 8 through the air vent 6. The reaction liquid is heated and stirred while the stirring device is stirring. Since the stirring device is constantly moving and heating is performed at multiple positions in the kettle body 1, the stirring device can heat while stirring, and the heating efficiency is faster. There is no need to gradually transfer heat from the outer wall of the kettle body 1 to the inside.

[0033] Furthermore, if the reaction time is too long, the temperature of the heated liquid or heated gas in the stirring device will gradually drop during the heat transfer process, so the lower end of the middle tube axis 11 is set to be normally open, and the ends of the stirring tube axis 13 and the side tube axis 12 are set to be detachable and closed. At the same time, a heating chamber 15 is provided at the lower end of the bottom of the kettle body 2, and the kettle body 2 is connected to the heating chamber 15 through a fixed sleeve hole. A fixed sleeve 16 is fixed in the fixed sleeve hole, one end of the fixed sleeve 16 is connected to the heating chamber 15, and the other end is connected to the middle tube axis 11, and the middle tube axis 11 is rotatably sealed in the fixed sleeve 16, and one end of the heating chamber 15 is connected to a discharge pipe 17, and the end of the discharge pipe 17 is placed outside, and the discharge pipe 17 is connected to an external circulation heating box and then to the water inlet pipe 8, forming a circulation heating channel.

[0034] During heating and stirring, the heating water of the middle tube shaft 11 flows into the heating chamber 15 through the fixed sleeve 16. The heating chamber 15 can perform auxiliary heating at the bottom of the kettle body 2 to improve heating efficiency, make heating more uniform, and heat faster. At the same time, the heated liquid is discharged through the discharge pipe 17 and then flows back into the circulation heating box, and then is pumped to the water inlet pipe 8. The circulation heating box can also be connected to the controller.

[0035] Furthermore, some experimental products require low-temperature reactions or high-pressure reactions and need to be naturally cooled before they can be opened. Therefore, in order to speed up cooling, a cooling chamber 18 is reserved on the side wall of the kettle body 2. A cooling water inlet pipe 19 is provided at the upper end of the cooling chamber 18, and a cooling drain pipe 20 is provided at the lower end of the other side for pre-cooling during the experiment. Cooling water can be directly introduced into the cooling chamber 18, or an external circulating cooling box can be connected.

[0036] Furthermore, screw bearing seats 21 are symmetrically installed at both ends of the base 1, a screw 22 is rotatably installed in one screw bearing seat 21, a screw knob 24 is fixed to the upper end of the screw 22, a limit rod 23 is rotatably installed in one screw bearing seat 21, a support rod 25 is threadedly connected to the screw 22, and the other end of the support rod 25 is slidably installed on the limit rod 23, a support ring 26 with the same diameter as the kettle body 2 is provided in the middle of the support rod 25, and a plurality of fixing holes are provided on the support rod 25, and the uppermost end of the kettle body 2 is integrally connected with a kettle body eaves extending outward, the kettle body 2 is placed in the support ring 26, the kettle body eaves is stuck on the support ring 26, the diameter of the kettle cover 3 is the same as the diameter of the kettle body eaves, bolt holes are provided on the kettle body 2 and the kettle cover 3, which are aligned with the fixing holes, the kettle body 2 and the kettle cover 3 can be fixed on the support ring 26, and then fixed by through-nail bolts, thereby increasing the stability of the reactor during reaction.

[0037] Place the kettle body 2 in the support ring 26, turn the screw knob 24, adjust the position of the support rod 25 on the screw 22, so that the kettle body 2 is placed on the base 1, buckle the kettle cover 3 on the kettle body 2, and use multiple bolts to pass through the kettle cover 3, the kettle body 2, and the fixing holes to fix them on the support ring 26. When taking out the kettle body 2, the kettle body 2 can be directly taken out upward. If the kettle body is heavy, the screw knob 24 can be turned in the opposite direction, first lift the kettle body 2 upward, and then hold the bottom of the kettle body 2 to take out the kettle body 2.

[0038] Furthermore, since the reaction kettle is a high-pressure reaction, in order to ensure the stability of the connection between the kettle body 2 and the kettle cover 3, it is necessary to install a stabilizing device at the buckle of the kettle body 2 and the kettle cover 3. The upper surfaces of both ends of the support rod 25 are provided with a slide groove, and an arc ring 27 is slidably installed in the slide groove. An adjustment rod 28 is fixed to the rear side of each arc ring 27. A threaded hole is provided on the adjustment rod 28. The same adjustment screw 29 is passed through the two threaded holes. The threads on the adjustment screw 29 are in opposite directions. An adjustment knob 30 is fixed to the end of the adjustment screw 29. When the adjustment screw 29 is turned, the two arc rings 27 can be synchronously moved away or close to each other, which is convenient for clamping and disassembling the kettle body 2 and the kettle cover 3.

[0039] Furthermore, in order to ensure the stability of the reactor during high-pressure reaction, a placement groove 31 is provided on the base 1, and a cross-shaped magnet block 32 protruding upward is fixed in the placement groove 31. A clamping groove 33 is provided at the bottom of the kettle body 2, and the clamping groove 33 matches the magnet block 32. A metal sheet matching the magnet block 32 is provided in the clamping groove 33. During the reaction, the clamping groove 33 at the bottom of the kettle body 2 is placed on the magnet block 32 for adsorption and fixation.

[0040] Furthermore, four plug-in valves 34 are installed on the kettle cover 3. The plug-in valves 34 are made of SU316L stainless steel. The plug-in valves 34 are respectively installed with thermocouples 35, safety valves 36, electrodes 37, and four-way valves 38. The thermocouple 35 is used to detect the internal temperature of the kettle body 2 during the reaction at any time. The thermocouple 35 is connected to a temperature controller. The safety valve 36 is used to ensure the safety of the air pressure in the kettle body 2. The electrode 37 is used to monitor the reaction situation in the kettle body 2. One end of the four-way valve 38 is connected to the plug-in valve 34, one end is connected to a pressure gauge 41, one end is connected to a gas supply valve 39 for introducing inert gas, and one end is connected to an exhaust valve 40.

[0041] Furthermore, when the high-pressure reactor is reacting, if the electrode 37 accidentally touches metal, electric shock or short circuit may occur. Therefore, a disassembly cover is provided at the upper end of the electrode 37 and a polyfluoro insulating cover 42 is placed on the upper end of the reactor cover 3. A polyfluoro insulating ring 43 is disassembled and installed at the lower end of the reactor cover 3. A screw 44 is threadedly connected at the bottom of the electrode 37. An anode rod 45 placed in the reactor body is sleeved on the screw 4. The anode rod 45 is an aluminum bar, and the cathode is the reactor itself.

[0042] Furthermore, in order to ensure the safety of the reactor during reaction, such as to prevent burns caused by touch, a plug-in slot 46 is provided on the base 1 , and a protective net ring 47 is removably installed in the plug-in slot 46 , and the protective net ring 47 is placed on the outside of the reactor body 2 .

[0043] The utility model heats the stirring device body so that when the reactor reacts, the heating area is large, and heating is carried out while stirring, so that the heating is more uniform, the heat transfer efficiency is faster, and the heating efficiency is higher. In addition, cyclic heating can be achieved by cooperating with the heating chamber to improve the heating efficiency. The cooling chamber can also be used for pre-cooling in advance to meet the requirements of low-temperature experiments and reduce the waiting time after the high-temperature experiment.

[0044] The utility model realizes the support and limitation of the kettle body through the support ring, strengthens the fixation of the kettle body, and facilitates the placement and removal of the kettle body. The arc ring is synchronously controlled in conjunction with the adjusting screw rod, so as to facilitate the clamping and disassembly of the reaction kettle.

[0045] The utility model fixes the kettle body by docking the magnet block with the clamping groove, and avoids short circuit and leakage caused by metal contact by adding a polyfluoroethylene insulating cover and a polyfluoroethylene insulating ring.

[0046] Although the content of the utility model has been described in detail through the above preferred embodiments, it should be recognized that the above description should not be considered as a limitation of the utility model. After reading the above content, various modifications and substitutions of the utility model will be obvious to those skilled in the art. Therefore, the protection scope of the utility model should be limited by the attached claims.

Claims

1. An experimental high-pressure reactor for improving heating efficiency, comprising a base (1), a reactor body (2) being placed on the base (1), a reactor cover (3) being buckled on the reactor body (2), a driving motor (4) being installed on the reactor cover (3), and the driving motor (4) being connected to a stirring device placed in the reactor body (2), characterized in that: The stirring device comprises a coupling tube (5) fixedly connected to a driving motor (4); the lower end of the coupling tube (5) has an opening with a cavity inside; a plurality of vent holes (6) are opened on the side wall of the coupling tube (5); a coupling ring (7) is rotatably connected to the outside of the vent hole (6); a water inlet pipe (8) is fixed to one side of the coupling ring (7); a sleeve (9) placed inside the kettle body (2) is fixed to the lower end of the coupling tube (5); a four-way pipe (10) is fixed to the lower end of the sleeve (9); a middle pipe shaft (11) is fixed to the lower end of the four-way pipe (10); two symmetrically arranged side pipe shafts (12) are fixed to both sides of the four-way pipe (10); a plurality of stirring pipe shafts (13) facing the axis are fixed to the side pipe shafts (12) in the vertical direction; and a plurality of stirring impellers (14) arranged in an alternating manner with the stirring pipe shafts (13) are sleeved on the middle pipe shaft (11).

2. The experimental high-pressure reactor for improving heating efficiency according to claim 1, characterized in that: The lower end of the middle tube shaft (11) is open, and a heating chamber (15) is provided at the lower end of the kettle body (2). A fixed sleeve (16) is installed at the bottom of the kettle body (2), and the upper end of the fixed sleeve (16) is connected to the middle tube shaft (11) and the lower end is connected to the heating chamber (15). The lower end of the middle tube shaft (11) is rotatably installed in the fixed sleeve (16), and the heating chamber (15) is connected to a discharge pipe (17) with its end placed outside.

3. The experimental high-pressure reactor for improving heating efficiency according to claim 1, characterized in that: A cooling cavity (18) is provided on the side wall of the kettle body (2), and a cooling water inlet pipe (19) and a cooling water discharge pipe (20) are provided at the upper end and the lower end of the cooling cavity (18).

4. The experimental high-pressure reactor for improving heating efficiency according to claim 1, characterized in that: The base (1) has screw bearing seats (21) symmetrically mounted at both ends, a screw (22) and a limit rod (23) rotatably mounted in the screw bearing seats (21), a screw knob (24) fixed to the upper end of the screw (22), a support rod (25) threadedly mounted on the screw (22), the other end of the support rod (25) slidably mounted on the limit rod (23), a support ring (26) is provided in the middle of the support rod (25), and a plurality of fixing holes are provided on the support ring (26).

5. The experimental high-pressure reactor for improving heating efficiency according to claim 4, characterized in that: The upper ends of both ends of the support rod (25) are slidably mounted with arc rings (27), each arc ring (27) is fixed with an adjustment rod (28) disposed on the rear side of the kettle body (2), the two adjustment rods (28) are threadedly connected to the same adjustment screw (29), the adjustment screw (29) is provided with threads in opposite directions, and an adjustment knob (30) is fixed to the end of the adjustment screw (29).

6. The experimental high-pressure reactor for improving heating efficiency according to claim 1, characterized in that: The base (1) is provided with a placement groove (31), a cross-shaped magnet block (32) is fixed in the placement groove (31), and the bottom of the kettle body (2) is provided with a clamping groove (33) matching the magnet block (32), a metal sheet is arranged in the clamping groove (33).

7. The experimental high-pressure reactor for improving heating efficiency according to claim 1, characterized in that: Four plug-in valves (34) are installed on the kettle cover (3), and thermocouples (35), safety valves (36), electrodes (37), and four-way valves (38) are respectively plug-in-installed in the four plug-in valves (34), and the four-way valves (38) are respectively connected to a gas supply valve (39), an exhaust valve (40), and a pressure gauge (41).

8. The experimental high-pressure reactor for improving heating efficiency according to claim 7, characterized in that: The upper end of the electrode (37) is provided with a PTFE insulating cover (42) for disassembly, and the lower end of the kettle cover (3) is provided with a PTFE insulating ring (43) for disassembly. A screw (44) is rotatably installed below the electrode (37), and an anode rod (45) placed in the kettle body (2) is sleeved on the screw (44).

9. The experimental high-pressure reactor for improving heating efficiency according to claim 1, characterized in that: The base (1) is provided with an inserting groove (46), and a protective mesh ring (47) disposed outside the kettle body (2) is inserted into the inserting groove (46).

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