CN202803201U - High-temperature and high-pressure reaction kettle for strong magnetic coupling and stirring - Google Patents
High-temperature and high-pressure reaction kettle for strong magnetic coupling and stirring Download PDFInfo
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- CN202803201U CN202803201U CN201220353256.7U CN201220353256U CN202803201U CN 202803201 U CN202803201 U CN 202803201U CN 201220353256 U CN201220353256 U CN 201220353256U CN 202803201 U CN202803201 U CN 202803201U
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Abstract
The utility model discloses a high-temperature and high-pressure reaction kettle for strong magnetic coupling and stirring, belonging to the field of pressure containers. The high-temperature and high-pressure reaction kettle for strong magnetic coupling and stirring comprises a reaction device module, a stirring rotational speed control module, a temperature control module and a control module, wherein the reaction device module comprises a chassis, a kettle body, a kettle cover, a high-temperature and high-pressure stop valve, a safety blasting device, a high-temperature solution pressure transmitter, a lifting bracket and a protection cover, wherein a sealing gasket is arranged between the kettle body and the kettle cover, the kettle cover is provided with a groove, the sealing gasket is arranged in the groove on the kettle cover, the kettle body and the kettle cover are connected through a half-moon clamp, the upper part of the kettle cover is provided with a magnetic coupling mechanical stirrer, and the magnetic coupling mechanical stirrer comprises a motor, a bracket, an outer magnetic steel body, an inner magnetic steel body, a stirring shaft, a sealing barrel, a connecting body and a stirring blade. The reaction kettle disclosed by the utility model is reasonable in structural design, and has the characteristics of stable performance, high pressure, high temperature control precision, and the like.
Description
Technical field
The strong magnetic couple of the utility model stirs high-temperature high-pressure reaction kettle and belongs to the pressure vessel field.
Background technology
Supercritical water refers to when air pressure and temperature reach certain value, the density of Yin Gaowen and the water that expands with because of the density of the compressed steam of the high pressure water when just in time identical.At this moment, the liquids and gases of water are just as broad as long, and blending becomes a kind of new liquid that presents the high pressure-temperature state together fully.Glassware for drinking water has the character of many uniquenesses with this understanding, as the nonpolar organic matters such as hydro carbons the same with polar organic matter can be fully and supercritical water dissolve each other, the gases such as oxygen, nitrogen, carbon monoxide, carbon dioxide also can both be dissolved in the supercritical water with arbitrary proportion, and especially the solubility of salt in supercritical water is very little for inorganic matter.Supercritical water also has good mass transfer, heat transfer character.These characteristics are so that supercritical water becomes a kind of good reaction medium.Therefore supercritical water oxidation and gasification technology become an international forward position focus, and be very promising in changing rejected material to useful resource field and field of Environment Protection.High-temperature high-pressure reaction kettle is the nucleus equipment that can carry out chemical reaction under the supercritical water state, can utilize this equipment to carry out different chemical reaction test or other chemical syntheses under the supercritical water state.Reactor commonly used easily produces distortion in hot operation at present, decay resistance a little less than, adopt the mechanical agitator of mechanical seal mode in high-pressure process, easily to produce leakage, adopt simultaneously packing seal reactor sealing effectiveness bad, and the seal form that adopts arc surface and plane, arc surface to contact with the line of arc surface, rely on high accuracy and the fineness of contact-making surface, when slightly having the wearing and tearing of scratching, sealing surface just is difficult to the sealing effectiveness that reaches good, the same leakage phenomenon that easily produces, the environment that causes being difficult to forming HTHP carries out the chemical reaction of supercritical water state.
Summary of the invention
The purpose of this utility model be to provide a kind of can by regulate and control different temperature, pressure makes medium produce different reactions, can carry out the chemical reaction under the supercritical water state, the strong magnetic couple of the sealing heat-proof corrosion resistant erosion between kettle and the kettle cover stirs high-temperature high-pressure reaction kettle.
The purpose of this utility model reaches by following measures; strong magnetic couple stirs high-temperature high-pressure reaction kettle and comprises the reaction unit module; the speed of agitator control module; temperature control modules; control module; the reaction unit module comprises underframe; kettle; kettle cover; high temperature and high pressure cut-off valve; the safety blasting device; the high temperature fusibility pressure transmitter; lifting support; protective cover; kettle is installed on the lifting support; lifting support is installed on the underframe; kettle cover is fixed on the fixed support of underframe; kettle is connected with kettle cover; at kettle high temperature and high pressure cut-off valve is installed; at kettle the safety blasting device is installed; at kettle the high temperature fusibility pressure transmitter is installed; at kettle protective cover is installed; kettle cover is installed on the kettle; the speed of agitator control module comprises strong magnetic couple agitator; Hall element; strong magnetic couple agitator comprises magnetic coupling; agitator; motor; agitator connects by magnetic coupling with motor; Hall element is installed on the agitator; between kettle and kettle cover, be provided with sealing gasket; be provided with groove on the kettle cover; sealing gasket is arranged in the groove on the kettle cover; be provided with boss at kettle; corresponding with sealing gasket on the kettle cover at the boss of kettle; kettle is connected half-moon-shaped clamper and connects with kettle cover; kettle and kettle cover flange are pressed and are installed in the half-moon-shaped clamper; lock cover is arranged on the kettle cover flange, and bolt compresses lock cover.
Be provided with the magnetic couple mechanical agitator on kettle cover top, the magnetic couple mechanical agitator comprises motor, support, outer steel body, inner magnetic steel body, shaft, sealed cylinder, connector, stirrer paddle, motor is rack-mount, the outer steel body is installed on the motor, the outer steel body is installed in the support, and sealed cylinder is installed in the outer steel body, and interior magnet steel iron is installed in the sealed cylinder, interior magnet steel iron and shaft combine as a whole with shaft joint, and shaft connects stirrer paddle.
Temperature control modules comprises PID microcomputer controller, heater, heater thermocouple, U-shaped cooling coil, magnetic valve and stainless steel ball valve, the stainless steel ball valve connected electromagnetic valve, the heater thermocouple is arranged in the heater, U-shaped cooling coil is installed on the kettle, heater is installed on the kettle, PID microcomputer controller connected electromagnetic valve, the PID microcomputer controller connects heater, and the PID microcomputer controller connects U-shaped cooling coil.
Control module comprises switch board, digital display meter, and digital display meter, phase place electric power controller, functional switch, adjusting knob are set on the control panel of switch board.
The utility model reasonable in design can be carried out chemical reaction under the supercritical water state, and can make medium produce different reactions by controlling different temperature, pressures, has stable performance, pressure height, the characteristics that temperature-controlled precision is high.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the side schematic view of accompanying drawing 1.
Fig. 3 is the schematic top plan view of accompanying drawing 1.
Fig. 4 is schematic perspective view of the present utility model.
Fig. 5 is digital display meter schematic diagram of the present utility model.
Fig. 6 is switch board schematic diagram of the present utility model.
Fig. 7 is half-moon-shaped holder structure schematic diagram of the present utility model.
Fig. 8 is magnetic couple agitator structure schematic diagram of the present utility model.
Fig. 9 is magnetic couple agitator structure schematic diagram of the present utility model.
The specific embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
Among the figure: underframe 1; lifting support 2; kettle 3; kettle cover 4; U-shaped cooling coil 5; half-moon-shaped clamper 6; stainless steel ball valve 7; high-temperature melt pressure transmitter 8; magnetic valve 9; magnetic couple agitator 10; Hall element 11; high temperature and high pressure cut-off valve 12; reactor thermocouple 13; protective cover 14; heater 15; heater thermocouple 16; safety blasting device 17; switch board 18; digital display meter 19; PID microcomputer controller 20; motor 21; support 22; outer steel body 23; inner magnetic steel body 24; shaft 25; sealed cylinder 26; connector 27; stirrer paddle 28; bolt 31; compress locking plate 32; sealing gasket 33.
Shown in accompanying drawing 1, accompanying drawing 2, accompanying drawing 3, accompanying drawing 4, accompanying drawing 5, accompanying drawing 6, the strong magnetic couple of the utility model stirs high-temperature high-pressure reaction kettle and comprises underframe 1, lifting support 2, kettle 3, kettle cover 4, U-shaped cooling coil 5, half-moon-shaped clamper 6, stainless steel ball valve 7, high-temperature melt pressure transmitter 8, magnetic valve 9, magnetic couple agitator 10, Hall element 11, high temperature and high pressure cut-off valve 12, reactor thermocouple 13, protective cover 14, heater 15, heater thermocouple 16, safety blasting device 17, switch board 18, digital display meter 19, PID microcomputer controller 20.Strong magnetic couple stirs high-temperature high-pressure reaction kettle and comprises the reaction unit module; the speed of agitator control module; temperature control modules; control module; the reaction unit module comprises underframe; kettle; kettle cover; high temperature and high pressure cut-off valve; the safety blasting device; the high temperature fusibility pressure transmitter; lifting support; protective cover; kettle is installed on the lifting support; lifting support is installed on the underframe; kettle cover is fixed on the fixed support of underframe; kettle is connected with kettle cover; at kettle high temperature and high pressure cut-off valve is installed; at kettle the safety blasting device is installed; at kettle the high temperature fusibility pressure transmitter is installed; at kettle protective cover is installed; kettle cover is installed on the kettle; the speed of agitator control module comprises strong magnetic couple agitator; Hall element; strong magnetic couple agitator comprises magnetic coupling; agitator; motor; agitator connects by magnetic coupling with motor; Hall element is installed on the agitator; temperature control modules comprises the PID microcomputer controller; heater; the heater thermocouple; U-shaped cooling coil; magnetic valve and stainless steel ball valve; the stainless steel ball valve connected electromagnetic valve; the heater thermocouple is arranged in the heater; U-shaped cooling coil is installed on the kettle; heater is installed on the kettle; PID microcomputer controller connected electromagnetic valve; the PID microcomputer controller connects heater, and the PID microcomputer controller connects U-shaped cooling coil.Control module comprises switch board, digital display meter, and digital display meter, phase place electric power controller, functional switch, adjusting knob are set on the control panel of switch board.
Kettle is installed on the lifting support; lifting support is installed on the underframe; kettle cover is fixed on the fixed support of underframe; kettle is connected by half-moon-shaped clamper with kettle cover; at kettle high temperature and high pressure cut-off valve is installed; at kettle the safety blasting device is installed; at kettle the high temperature fusibility pressure transmitter is installed; at kettle protective cover is installed; the speed of agitator control module comprises strong magnetic couple agitator 10; Hall element 11; strong magnetic couple agitator comprises magnetic coupling; agitator; motor, agitator connects by magnetic coupling with motor, and Hall element is installed on the agitator.Temperature control modules comprises PID microcomputer controller 20, heater 15, heater thermocouple 16, U-shaped cooling coil 5, magnetic valve 9 and stainless steel ball valve 7, stainless steel ball valve 7 connected electromagnetic valves 9, heater thermocouple 16 is arranged in the heater 15, U-shaped cooling coil is installed on the kettle, heater 15 is installed on the kettle, PID microcomputer controller connected electromagnetic valve, the PID microcomputer controller connects heater 15, and the PID microcomputer controller connects U-shaped cooling coil.Control module comprises switch board 18, digital display meter 19, and digital display meter, phase place electric power controller, functional switch, adjusting knob are set on the control panel of switch board.Be provided with the magnetic couple mechanical agitator on kettle cover top, interior magnet steel iron and shaft combine as a whole with shaft joint, the outer steel body drives inner magnetic steel body, shaft and stirrer paddle by the magnetic line of force and rotates, because its contactless carry-over moment, replace movable sealing with static seal, each mixing component of whole medium is in the state of positive confinement fully carries out.
Reactor is cylindrical reactor, made by Hastelloy C alloys 276, have good being heated and stress performance, has strong decay resistance, high temperature deformation is few, maximum operating temperature is 450 ℃, maximum working pressure is 35MPa, work dischargeable capacity 350mL, reactor is divided into two ones of kettle and kettle covers, kettle cover is fixed on the fixed mount of underframe, kettle adopts half-moon-shaped clamper that kettle is connected with kettle cover with kettle cover, and by tightening up equally distributed bolt on the clamper the half-moon-shaped lock cover on the clamper is compressed, simultaneously lock cover is pressed on kettle and kettle cover flange section in the clamper, make on the kettle partly boss and kettle cover under the part sealed groove in-built the graphite grazing pad mutually compress, make it to obtain good sealing property, the power that half-moon-shaped lock cover can make bolt apply makes kettle cover and kettle pressure even, and can reduce in the course of reaction kettle and kettle cover and too much heat is reached bolt make the bolt temperature distortion.Kettle cover top is equipped with 3 high temperature and high pressure cut-off valves and is satisfied the high-temperature high-voltage reaction function, by the stop valve open and close are realized air inlet in the reactor, exhaust, sampled functions.Simultaneously; the safety blasting device is housed on the reactor; when when reaction exceeds operating pressure, the temperature of permission; during the poor scheduled pressure value that reaches under the predetermined temperature of rupture disk inside pressure; the rupture disk explosion can be moved the pressure medium of releasing out; discharge by extension tube, thus protection container and security of system.High-temperature melt pressure transmitter is housed on the reactor, can measures accurately the pressure in the kettle.Lowering or hoisting gear is housed on the underframe can makes the random lifting of kettle, simple operation.Be provided with protective cover on the reaction unit, avoid because of the wrong protection that causes obtaining when reactor has liquid or Leakage Gas in course of reaction a timely safety of operation in the work.
The speed of agitator control module is comprised of with Hall element 11 strong magnetic couple agitator 10.The magnetic couple mechanical agitator is arranged on kettle cover top, adopt magnetic coupling to connect between agitator and motor-driven, interior magnet steel iron and shaft combine as a whole with shaft joint, the outer steel body drives inner magnetic steel body, shaft and stirrer paddle by the magnetic line of force and rotates, because its contactless carry-over moment, replace movable sealing with static seal, each mixing component of whole medium is in the state of positive confinement fully carries out work, has simultaneously high moment of torsion, be suitable for stirring full-bodied material, therefore, be more suitable for for carrying out the chemical mediator reaction under high temperature, the high-pressure situations.Be equipped with Hall element and test the speed at outer steel body place, and the speed feedback that can immediately measure agitator to agitator is convenient to speed of agitator is in time monitored to controller.
Temperature control modules is comprised of electric heater unit 15, microcomputer controller 20, reactor thermocouple 11, heating furnace thermocouple 16, U-shaped cooling coil 5, magnetic valve 9 and stainless steel ball valve 7.Intensification heater to reactor adopts resistive heater to be connected in the carborundum, the top layer is made by the alumina silicate fibre insulation material, and the conglobate infra-red radiation of shape district has the characteristics such as heat-conducting effect is even, firing rate is fast, outlet is by terminal box, and high temperature-resistant cable line and switch board link.Be provided with thermocouple Pt100 on the reactor, utilize the temperature difference to produce different electric weight and convert electric signal to, transfer to the PID microcomputer controller, and when corresponding signal shown, after comparing by temperature signal and temperature setting signal respectively, heating power is carried out on-off type or the phase modulation formula of PID rule and regulate, make actual temperature reach the purpose consistent with design temperature, temperature resolution is 0.1 ℃, temperature accuracy ± 2 ℃.Heater circuit adopts the phase place electric power controller to come pressure regulation simultaneously, reaches stepless voltage regulation thereby the size of regulator potentiometer changes the size of heating output voltage, if regulate the purpose that suitably just can satisfy programming rate and constant temperature.When system temperature is higher than the set temperature alarming value of microcomputer controller, magnetic valve is opened automatically, the U-shaped coil pipe of cooling is introduced at external water source, to in time cooling off in the kettle, being down to when alarming value is set magnetic valve when temperature in time closes, temperature in the kettle is remained in the range of set value, can open electromagnetic valve switch when reactor need be lowered the temperature, reactor is cooled off.When having a power failure suddenly in course of reaction or control section when breaking down, reactor need to cool off can be opened at once stainless steel ball valve and introduce cooling water and cool off by reactor, and can guarantee security of system.Establish on the heater by thermocouple Pt100, but the temperature of immediate feedback heater is to controller.
Shown in accompanying drawing 5, accompanying drawing 6, control module is comprised of switch, knob and the relevant electric elements of various control digital displaying meters 19 and required function on switch board 18, PID microcomputer controller 20, phase place electric power controller, the control panel.Be equipped with one on the control panel to the PID microcomputer controller of heter temperature control with self-setting function, the electric current that shows heater, one of voltage intelligent digital display list, show heter temperature, one of the digital display meter of agitator speed, battery main switch, heater button, each one of cooling electromagnetic valve switch, regulate agitator speed and each one in the potentiometer of heater programming rate and the switch of relevant required function, knob, remaining electric elements then is arranged in the switch board, make whole operation interface clear, make it whole system control realization stable operation, safety, convenient simple and direct.
Shown in accompanying drawing 7, accompanying drawing 9, the utility model is provided with sealing gasket 33 between kettle 4 and kettle cover 3, be provided with groove on the kettle cover, sealing gasket is arranged in the groove on the kettle cover, is provided with boss at kettle, and is corresponding with sealing gasket on the kettle cover at the boss of kettle, kettle is connected half-moon-shaped clamper 6 and connects with kettle cover, kettle and kettle cover flange are pressed and are installed in the half-moon-shaped clamper, and lock cover 32 is arranged on the kettle cover flange, and bolt 31 compresses lock cover.Half-moon-shaped clamper is connected with kettle cover with kettle, lock cover kettle and kettle cover flange screw in half-moon-shaped clamper, the boss on kettle top and kettle cover bottom in-built the graphite grazing pad mutually compress.
As shown in Figure 9, the utility model is provided with the magnetic couple mechanical agitator on kettle cover top, the magnetic couple mechanical agitator comprises motor 21, support 22, outer steel body 23, inner magnetic steel body 24, shaft 25, sealed cylinder 26, connector 27, stirrer paddle 28, motor is rack-mount, the outer steel body is installed on the motor, the outer steel body is installed in the support, sealed cylinder is installed in the outer steel body, interior magnet steel iron is installed in the sealed cylinder, interior magnet steel iron and shaft combine as a whole with shaft joint, shaft connects stirrer paddle, the outer steel body drives inner magnetic steel body by the magnetic line of force, shaft and stirrer paddle rotate, because its contactless carry-over moment, replace movable sealing with static seal, each mixing component of whole medium is in the state of positive confinement fully carries out.
Claims (4)
1. one kind strong magnetic couple stirs high-temperature high-pressure reaction kettle; comprise the reaction unit module; the speed of agitator control module; temperature control modules; control module; the reaction unit module comprises underframe; kettle; kettle cover; high temperature and high pressure cut-off valve; the safety blasting device; the high temperature fusibility pressure transmitter; lifting support; protective cover; kettle is installed on the lifting support; lifting support is installed on the underframe; kettle cover is fixed on the fixed support of underframe; kettle is connected with kettle cover; at kettle high temperature and high pressure cut-off valve is installed; at kettle the safety blasting device is installed; at kettle the high temperature fusibility pressure transmitter is installed; at kettle protective cover is installed; kettle cover is installed on the kettle; the speed of agitator control module comprises strong magnetic couple agitator; Hall element; it is characterized in that strong magnetic couple agitator comprises magnetic coupling; agitator; motor; agitator connects by magnetic coupling with motor; Hall element is installed on the agitator; between kettle and kettle cover, be provided with sealing gasket; be provided with groove on the kettle cover; sealing gasket is arranged in the groove on the kettle cover; be provided with boss at kettle; corresponding with sealing gasket on the kettle cover at the boss of kettle; kettle is connected half-moon-shaped clamper and connects with kettle cover; kettle and kettle cover flange are pressed and are installed in the half-moon-shaped clamper; lock cover is arranged on the kettle cover flange, and bolt compresses lock cover.
2. strong magnetic couple according to claim 1 stirs high-temperature high-pressure reaction kettle, it is characterized in that being provided with the magnetic couple mechanical agitator on kettle cover top, the magnetic couple mechanical agitator comprises motor, support, the outer steel body, inner magnetic steel body, shaft, sealed cylinder, connector, stirrer paddle, motor is rack-mount, the outer steel body is installed on the motor, the outer steel body is installed in the support, sealed cylinder is installed in the outer steel body, interior magnet steel iron is installed in the sealed cylinder, interior magnet steel iron and shaft combine as a whole with shaft joint, and shaft connects stirrer paddle.
3. strong magnetic couple according to claim 1 stirs high-temperature high-pressure reaction kettle, it is characterized in that temperature control modules comprises PID microcomputer controller, heater, heater thermocouple, U-shaped cooling coil, magnetic valve and stainless steel ball valve, the stainless steel ball valve connected electromagnetic valve, the heater thermocouple is arranged in the heater, U-shaped cooling coil is installed on the kettle, heater is installed on the kettle, PID microcomputer controller connected electromagnetic valve, the PID microcomputer controller connects heater, and the PID microcomputer controller connects U-shaped cooling coil.
4. strong magnetic couple according to claim 1 stirs high-temperature high-pressure reaction kettle, it is characterized in that control module comprises switch board, digital display meter, and digital display meter, phase place electric power controller, functional switch, adjusting knob are set on the control panel of switch board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220353256.7U CN202803201U (en) | 2012-07-20 | 2012-07-20 | High-temperature and high-pressure reaction kettle for strong magnetic coupling and stirring |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220353256.7U CN202803201U (en) | 2012-07-20 | 2012-07-20 | High-temperature and high-pressure reaction kettle for strong magnetic coupling and stirring |
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| CN202803201U true CN202803201U (en) | 2013-03-20 |
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| CN201220353256.7U Expired - Fee Related CN202803201U (en) | 2012-07-20 | 2012-07-20 | High-temperature and high-pressure reaction kettle for strong magnetic coupling and stirring |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104941518A (en) * | 2014-03-24 | 2015-09-30 | 中国石油化工股份有限公司 | Dissolving kettle |
| CN105597627A (en) * | 2016-03-28 | 2016-05-25 | 北京缔森科技发展有限公司 | Electric lifting assembly and high-temperature and high-pressure reaction kettle comprising same |
| CN107367644A (en) * | 2016-05-12 | 2017-11-21 | 鞍钢股份有限公司 | A kind of mixer On-line Fault monitoring system and method |
| CN107649085A (en) * | 2017-10-24 | 2018-02-02 | 湖州城区天顺化工厂 | Controllable temperature quick reaction device is used in a kind of chemical products processing |
| CN109187676A (en) * | 2018-09-17 | 2019-01-11 | 天津大学 | A kind of reaction under high pressure kettle device and its application method for simulated deep-sea environment |
| CN110681314A (en) * | 2019-10-22 | 2020-01-14 | 无锡嘉泰化工设备有限公司 | High-pressure production high-solid low-viscosity acrylic acid preparation device for laboratory and production process thereof |
-
2012
- 2012-07-20 CN CN201220353256.7U patent/CN202803201U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104941518A (en) * | 2014-03-24 | 2015-09-30 | 中国石油化工股份有限公司 | Dissolving kettle |
| CN104941518B (en) * | 2014-03-24 | 2017-02-15 | 中国石油化工股份有限公司 | Dissolving kettle |
| CN105597627A (en) * | 2016-03-28 | 2016-05-25 | 北京缔森科技发展有限公司 | Electric lifting assembly and high-temperature and high-pressure reaction kettle comprising same |
| CN105597627B (en) * | 2016-03-28 | 2018-06-12 | 北京缔森科技发展有限公司 | A kind of electric up-down component and the high-temperature high-pressure reaction kettle including the component |
| CN107367644A (en) * | 2016-05-12 | 2017-11-21 | 鞍钢股份有限公司 | A kind of mixer On-line Fault monitoring system and method |
| CN107649085A (en) * | 2017-10-24 | 2018-02-02 | 湖州城区天顺化工厂 | Controllable temperature quick reaction device is used in a kind of chemical products processing |
| CN109187676A (en) * | 2018-09-17 | 2019-01-11 | 天津大学 | A kind of reaction under high pressure kettle device and its application method for simulated deep-sea environment |
| CN110681314A (en) * | 2019-10-22 | 2020-01-14 | 无锡嘉泰化工设备有限公司 | High-pressure production high-solid low-viscosity acrylic acid preparation device for laboratory and production process thereof |
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Granted publication date: 20130320 Termination date: 20150720 |
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