A kind of continuous flow tubular reactor system and reaction control system
Technical field
The present invention relates to chemical pharmaceutical technical fields, and in particular to a kind of continuous flow tubular reactor system and reaction controlling system
System.
Background technology
The common reactor apparatus of chemical pharmaceutical technical field includes tubular reactor and tank reactor etc., wherein autoclave
Reactor is often packed into agitating device in a kettle, for liquid phase reactor object mix, synthetic purity, reaction conversion ratio compared with
Low, energy consumption and pollution are more serious.Since field of chemical pharmacy is more demanding to the purity of product etc., the reaction often used
Device equipment is continuous flow tubular reactor.
Chemical reactant concentration in tubular reactor changes with reaction rate with pipe range, therefore tubular reactor needs completely
Foot chemically reacts required pipe range, and existing straight tube reactor or U-tube reactor will accomplish longer pipe range, then reactor
Volume is too big.In addition, existing tubular reactor, can not complete to chemically react required reaction condition well, as mass transfer,
Conduct heat it is required be sufficiently mixed, accurate temperature controlling, enough tube length of reaction tube and the corresponding data of on-line checking etc..
Invention content
The present invention proposes a kind of continuous flow tubular reactor system and reaction control system, to solve existing pipe reaction system
System takes up a large area, and mass transfer, heat transfer mixing are not uniform enough, can not accomplish the technical problems such as accurate temperature controlling and on-line monitoring.
The present invention continuous flow tubular reactor system, including be sequentially communicated feed arrangement, mixing arrangement, preheating device and
Reaction unit,
The feed arrangement includes multigroup sequentially connected head tank, feed pump and flow controller, each raw material
For containing a kind of reaction solution, the flow controller is used to control the feed pump from the head tank with a constant speed tank
Rate abstraction reaction solution;
Agitating paddle is installed, the agitating paddle is driven by servo motor, for will be from the raw material in the mixing arrangement
The reaction solution extracted in tank is mixed, and obtains mixed solution;
The preheating device includes preheating tube side and preheating shell side, described to preheat tube side for circulating from the mixing arrangement
The mixed solution of importing, the preheating shell side are used for the pre- thermal medium to circulate for preheating reactant;
The reaction unit includes reactor shell, and the lower part of the reactor shell is provided with shell side inlet, described anti-
The top of device housing is answered to be provided with shell-side outlet, is used to circulate to heat reactant inside the shell side of the reactor shell
Heat medium;The upper and lower ends of the reactor shell are respectively connected with tube sheet and communication apparatus, the inside of the reactor shell
It is provided with the reaction tube group for the reactant that circulates, the reaction tube group includes more reaction tubes, and up and down the two of every reaction tube
It holds across and is fixedly connected on the tube sheet, all reaction tubes are sequentially communicated by the communication apparatus.
Preferably, reactant entrance and reactant exit are provided on the communication apparatus of the reactor shell lower end,
The reactant entrance connects the preheating device, and the reactant exit connects products pot.
Preferably, it is provided with temperature instrument, pressure detecting instrument on the communication apparatus of the reactor shell upper end
Table and flow rate detection instrument, for measuring temperature, pressure and the flow speed data in the reaction tube.
Preferably, the communication apparatus uses baffling bobbin carriage, it is provided on the baffling bobbin carriage and multiple is reacted with described
The adjacent corresponding baffling slot of two reaction tubes in pipe communication direction, all reaction tubes by the baffling slot on baffling bobbin carriage successively
Connection.
It is set preferably, the more reaction tubes are wound with certain helix angle.
It is described including input unit and control unit the invention also discloses a kind of continuous flow pipe reaction control system
Input unit is for selecting preset reaction pattern, and the reaction pattern that described control unit is selected based on the input unit is come defeated
Go out and control signal, the tubular reactor system operation of control continuous flow;Wherein, described control unit includes:
Multigroup feed control device, every group of feed control device connects a head tank, for controlling each reaction solution
Flow velocity and flow;
Mixed control apparatus, for controlling the rotating speed of the servo motor;
Pre-heating control device, including preheating temperature detection device and preheating medium control device, the preheating temperature detection
Device is used to detect the temperature of preheated solution in preheating device tube side, and the preheating medium control device is used for according to the temperature control
The temperature and flow velocity of pre- thermal medium in preheating device shell side processed;
Reaction Control Assembly is controlled including reaction condition detection device, reaction stream velocity control device and heat medium and is filled
It puts, the reaction condition detection device includes temperature instrument, pressure instrumentation and flow rate detection instrument, anti-for measuring
Temperature, pressure and flow speed data that should be in pipe, the reaction stream velocity control device be used for according to the flow speed data in reaction tube
Reactant flow velocity is controlled, the heating medium control device is used to control reactor according to the temperature and pressure data in reaction tube
The temperature and flow velocity of heat medium inside shell side.
The continuous flow tubular reactor system and reaction control system of the present invention, has the following advantages that:
(1) by setting mixing arrangement, a variety of reaction solutions is sufficiently mixed, improve reaction efficiency.
(2) by setting preheating device, mixed reaction solution is made to heat up in advance before entering the reactor, into reaction
Reach reaction temperature after device as early as possible, improve reaction efficiency.
(3) reaction unit uses continuous flow pipeline, and continuous flow pipeline is connected by baffling bobbin carriage, substantially reduces adjacent anti-
The distance between should manage, the length of unit volume reaction tubes is made to increase significantly, under conditions of similary chemical reaction is met, this
The volume and space smaller, production cost of invention are lower.
(4) reaction tube is wound in the shape of a spiral, and reactant makes reactant low along the spiral tangential motion of helically coiled
High reynolds number is obtained under flow condition, greatly improves turbulence effects, remains to uninterruptedly mix in continuous flowing reactive;In addition,
Wound form reaction tube group is integrally in spring form, can pass thermogenetic thermal stress with elimination reaction, will not conduct thermal stress to pipe
Plate end substantially increases the service life of equipment.
(5) reaction control system detects the reaction condition of reaction system links in real time, and makes accurate feedback and adjust
Section, the accurate every reaction condition controlled in reaction system.
Description of the drawings
Fig. 1 is the overall structure diagram of the continuous flow tubular reactor system of the present invention;
Fig. 2 is the structure diagram of the reaction unit of the continuous flow tubular reactor system of the present invention;
Fig. 3 is the functional block diagram of the continuous flow pipe reaction control system of the present invention.
Specific embodiment
Below in conjunction with the attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other without making creative work
Embodiment shall fall within the protection scope of the present invention.
Embodiment 1:
As shown in Figs. 1-2, the continuous flow tubular reactor system of the present embodiment, including be sequentially communicated feed arrangement 1, mixing
Device 2, preheating device 3 and reaction unit 4.
Wherein, feed arrangement 1 includes multigroup sequentially connected head tank 10, feed pump 11 and flow controller 12, each
For containing a kind of reaction solution, flow controller 12 is used to control the feed pump 11 from the head tank 10 head tank 10
With given pace abstraction reaction solution.
Agitating paddle 20 is installed, agitating paddle 20 is driven by servo motor 21, for will be from the head tank in mixing arrangement 2
The reaction solution extracted in 10 is mixed, and obtains mixed solution.
Preheating device 3 includes preheating tube side 30 and preheating shell side 31, preheats tube side 30 for circulating from the mixing arrangement 2
The mixed solution of importing, preheating shell side 31 are used for the pre- thermal medium to circulate for preheating reactant.
Reaction unit 4 includes reactor shell 40, and the lower part of reactor shell 40 is provided with shell side inlet 41, reactor enclosure
The top of body 40 is provided with shell-side outlet 42, and the heating circulated for heating reactant is used for inside the shell side of reactor shell 40
Medium;The upper and lower ends of reactor shell 40 are respectively connected with tube sheet 43 and communication apparatus, and reactor shell 40 is internally provided with
For more reaction tubes 44 of the reactant that circulates, the upper and lower ends of every reaction tube 44 pass through and are fixedly connected on the tube sheet 43
On, all reaction tubes 44 are sequentially communicated by the communication apparatus.
Further, it is provided with 45 He of reactant entrance on the communication apparatus of 40 lower end of reactor shell in the present embodiment
Reactant exit 46, the reactant entrance 45 connect the preheating device 3, and the reactant exit 46 connects products pot.
Further, it is provided with temperature instrument on the communication apparatus of 40 upper end of reactor shell in the present embodiment
47th, pressure instrumentation 48 and flow rate detection instrument 49, for measuring temperature, pressure and the flow speed data in the reaction tube.
Further, the communication apparatus in the present embodiment uses baffling bobbin carriage 5, is provided on the baffling bobbin carriage 5 multiple
Adjacent two reaction tubes, 44 corresponding baffling slot 50, all reaction tubes 44 pass through baffling in 44 communication direction of reaction tube
Baffling slot 50 on bobbin carriage 5 is sequentially communicated.Adjacent reaction tube is connected using baffling slot, can greatly reduce adjacent reaction pipe it
Between distance, the length of unit volume reaction tubes is made to increase significantly, under conditions of similary chemical reaction is met, the present embodiment
In the volume of reaction unit and space smaller.
Further, more reaction tubes 44 in the present embodiment are wound with certain helix angle and set, and it is anti-to form wound form
Should pipe group, wound form reaction tube group winds in the shape of a spiral, and reactant makes reactant along the spiral tangential motion of helically coiled
High reynolds number is obtained in low flow velocity, greatly improves turbulence effects, remains to uninterruptedly mix in continuous flowing reactive;Separately
Outside, wound form reaction tube group is integrally in spring form, can pass thermogenetic thermal stress with elimination reaction, thermal stress will not be conducted to
Tube sheet end substantially increases the service life of equipment.
Embodiment 2:
Present embodiment discloses a kind of continuous flow pipe reaction control system, including input unit 6 and control unit 7, institute
Input unit 6 is stated for selecting preset reaction pattern, the reaction mould that described control unit 7 is selected based on the input unit 6
Formula exports control signal, control continuous flow tubular reactor system operation;Wherein, described control unit 7 includes:
Multigroup feed control device 70, every group of feed control device 70 connect a head tank 10, for controlling each anti-
Answer the flow velocity and flow of solution;
Mixed control apparatus 71, for controlling the rotating speed of the servo motor 21;
Pre-heating control device 72, including preheating temperature detection device 73 and preheating medium control device 74, the preheating temperature
Degree detection device 73 is used to detect the temperature that preheating device 3 preheats preheated solution in tube side 30, the preheating medium control device
74 are used for the temperature and flow velocity that preheating device 3 are controlled to preheat pre- thermal medium in shell side 31 according to the temperature;
Reaction Control Assembly 75, including reaction condition detection device 76, reaction stream velocity control device 77 and heat medium
Control device 78, the reaction condition detection device 76 include temperature instrument 47, pressure instrumentation 48 and flow rate detection
Instrument 49, for measuring temperature, pressure and the flow speed data in reaction tube 44, the reaction stream velocity control device 77 is used for root
Reactant flow velocity is controlled according to the flow speed data in reaction tube 44, the heating medium control device 78 is used for according in reaction tube 44
Temperature and pressure data control reactor shell side inside heat medium temperature and flow velocity.
Further, input unit 6 selects preset reaction pattern in the present embodiment, and the preset reaction pattern includes
The preset flow rate and preset flow of each reaction solution preheat the preset temperature of preheated solution in tube side 30, in preheating shell side 31
The preset temperature and preset flow rate of pre- thermal medium, preset temperature, preset pressure and preset flow rate in reaction tube 44, reactor enclosure
The preset temperature and preset flow rate of heat medium inside journey.Those skilled in the art can according to the content of the present embodiment, by
Software and necessary general hardware platform, to realize preset reaction pattern in the present embodiment.
At runtime, according to the default reaction pattern that input unit 6 selects, control is anti-for the reaction control system of the present embodiment
Answer the feed arrangement 1 in system will be in the plurality of raw materials solution injection mixing arrangement 2 in multiple head tanks 10;Mixing arrangement 2 makes
After material solution is sufficiently mixed, mixed solution enters in preheating device 3;Pre-heating control device 73 detects 3 economizer bank of preheating device
The temperature of preheated solution in journey 30, and according to the temperature and stream of pre- thermal medium in the temperature control preheating shell side 31 of preheating device 3
Speed;After the completion of preheating, reaction solution is entered by continuous flow pipeline in reaction unit 4, and Reaction Control Assembly detects and feeds back control
The stabilization of reaction condition processed.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, it is noted that for this
For the those of ordinary skill of technical field, under the premise of the application principle is not departed from, several improvement and profit can also be made
Decorations, all within the spirits and principles of the present invention, any modification, equivalent replacement, improvement and so on are regarded as being included in this
Within the protection domain of invention.