CN203816624U - Pre-adjusting self-regression type reaction kettle temperature control system - Google Patents
Pre-adjusting self-regression type reaction kettle temperature control system Download PDFInfo
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- CN203816624U CN203816624U CN201420204345.4U CN201420204345U CN203816624U CN 203816624 U CN203816624 U CN 203816624U CN 201420204345 U CN201420204345 U CN 201420204345U CN 203816624 U CN203816624 U CN 203816624U
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- 238000006243 chemical reaction Methods 0.000 title claims abstract description 86
- 238000010438 heat treatment Methods 0.000 claims abstract description 17
- 239000013064 chemical raw material Substances 0.000 claims abstract description 7
- 238000007599 discharging Methods 0.000 claims abstract description 7
- 238000000034 method Methods 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 238000005485 electric heating Methods 0.000 abstract description 4
- 238000001311 chemical methods and process Methods 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000007704 transition Effects 0.000 abstract description 2
- 101100298225 Caenorhabditis elegans pot-2 gene Proteins 0.000 description 9
- 239000000126 substance Substances 0.000 description 7
- 239000000463 material Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
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Abstract
The utility model relates to a pre-adjusting self-regression type reaction kettle temperature control system. The pre-adjusting self-regression type reaction kettle temperature control system comprises an electric heating reaction kettle and a temperature control system, wherein the electric heating reaction kettle comprises a reaction kettle shell, a reaction pot, oil-conducting oil between the reaction kettle shell and the reaction pot, a chemical raw material feeding opening, a discharging opening, an oil leaking opening and an agitator; the temperature control system is composed of a temperature sensing device, a reaction pot temperature alarming instrument, an oil temperature controller and a heating device. The pre-adjusting self-regression type reaction kettle temperature control system has the beneficial effects that the temperature control of the electric heating chemical reaction kettle is realized, the heating speed is rapid, the overshoot is small, a transition process is short and the stability is good; the high automation of operation of a chemical process is effectively realized and the quality of a product is ensured; the labor production intensity is reduced, the efficiency of production operation is improved and the operation safety is guaranteed.
Description
Technical field
The utility model relates to chemical industry equipment field, especially relates to a kind of preconditioning autoregression formula temperature of reaction kettle control system.
Background technology
Conventionally the chemical reaction equipment in chemical process mostly is Steam Heating mode, and in recent years, electrothermal reactor, reactor are gradually gained popularity application, and particularly small chemical industry application is more general.Because electrothermal reaction still is all by heat-conducting oil heating, utilize conduction oil to carry out to reaction pot inside the technological requirement that indirect reaches chemical reaction temperature, so, the temperature control scheme of routine is to adopt reaction pot internal mix material reaction temperature to control heat-conducting oil heating power as measuring-signal, and this control method is difficult to overcome the temperature that thermal capacity is large, thermal inertia large and thermotonus lags behind to be caused and controls overshoot greatly and control unsettled problem.
Utility model content
The purpose of this utility model is to provide a kind of preconditioning autoregression formula temperature of reaction kettle control system, to overcome the thermal capacity existing in current electrothermal reaction still temperature control temperature large, that thermal inertia large and thermotonus lags behind to be caused, controls overshoot greatly and controls unsettled problem.
The purpose of this utility model is to be achieved through the following technical solutions:
A kind of preconditioning autoregression formula temperature of reaction kettle control system, comprise electrothermal reaction still and temperature control system, described electrothermal reaction still comprises reactor housing, reaction pot and the conduction oil between reactor housing and reaction pot, reaction pot top arranges at least one chemical raw material charging aperture, bottom arranges discharging opening, outlet valve is installed on discharging opening, described reactor case top is installed the agitator inserting in reaction pot, reactor housing top arranges conduction oil pouring orifice and overfall, reactor housing bottom arranges drain tap, and gate gurgle valve is installed on drain tap, described temperature control system is by temperature sensing device, reaction pot temperature alarming instrument, oil temperature controller and heater form, described temperature sensing device comprises the temperature sensor one being installed in reaction pot and is installed on the temperature sensor in conduction oil two between reactor housing and reaction pot, described temperature sensor is connected with reaction pot temperature alarming instrument, temperature sensor is connected with oil temperature controller, described heater comprises the electrical heating elements inserting in reactor housing bottom conduction oil and the relay being connected with this electrical heating elements, described reaction pot temperature alarming instrument connects oil temperature controller, oil temperature controller connects the relay of heater again, in described reaction pot temperature alarming instrument, reaction pot temperature alarming contact is set, oil temperature controller external event input contact is set in described oil temperature controller, described reaction pot temperature alarming contact is in parallel with oil temperature controller external event input contact.
Optionally, described chemical raw material charging aperture is 3.
Optionally, described electrical heating elements is 3.
Further, described relay is phase three-wire three solid-state relay module.
The beneficial effects of the utility model are: in chemical reaction kettle, the chemical reaction temperature of chemical industry mixed material adopts preconditioning autoregression control mode, overcome a difficult problem for the large thermal capacitance that the reaction of electric heating reacting kettle technological temperature exists, large time delay, large inertia and temperature control overshoot, realize temperature and controlled firing rate piece, overshoot is little, transient process is short, good stability, can effectively realize the increasingly automated of chemical process operation, guaranteed product quality, reduced work production intensity, improved production operation efficiency, guaranteed handling safety.
Accompanying drawing explanation
With reference to the accompanying drawings the utility model is described in further detail below.
Fig. 1 is the preconditioning autoregression formula electrothermal reaction still temperature control system structural representation described in the utility model embodiment.
In figure:
1, reactor housing; 2, reaction pot; 3, agitator; 4, chemical mixing material; 5, conduction oil; 6, electrical heating elements; 7, outlet valve; 8, temperature sensor one; 9, reaction pot temperature display alarm instrument; 10, reaction pot temperature alarming contact; 11, temperature sensor two; 12, oil temperature controller; 13, oil temperature controller external event input contact; 14, phase three-wire three solid-state relay module.
The specific embodiment
As shown in Figure 1, a kind of preconditioning autoregression formula electrothermal reaction still temperature control system described in the utility model embodiment, comprises electrothermal reaction still and temperature control system two large divisions.Electrothermal reaction still shell body 1 inside is provided with reaction pot 2, reactor housing 1 top is provided with the agitator 3 inserting in reaction pot 2, chemical raw material adds reaction pot 2 from three chemical raw material charging apertures, reaction pot 2 skins are coated with conduction oil 5, in the conduction oil 5 of reactor bottom, be provided with electrical heating elements 6, reaction pot 2 bottoms connect discharging opening, and outlet valve 7 is installed on discharging opening.Reaction pot 2 inside are provided with a temperature sensor 1, and temperature sensor 1 is connected to reaction pot temperature display alarm instrument 9; In the conduction oil 5 of covering reaction pot 2, be provided with a temperature sensor 2 11 and be connected with oil temperature controller 12,12 outputs of oil temperature controller connect a phase three-wire three solid-state relay module 14, and the output of phase three-wire three solid-state relay module 14 connects respectively three electrical heating elements 6.The reaction pot temperature alarming contact 10 of described reaction pot temperature display alarm instrument 9 is in parallel with the external event input contact 13 of oil temperature controller, realizes preconditioning autoregression and drives control.
When the preconditioning autoregression formula electrothermal reaction still temperature control system described in the utility model embodiment is specifically used, in advance chemical substance is added in proportion to reaction pot 2 inside, turn on agitator 3 mixes raw material.Open reaction pot temperature display alarm instrument 9 and oil temperature controller 12 power supplys, by reaction pot temperature display alarm instrument 9 alarming values be set in a certain value lower than technological operation temperature (according to thermal inertia and lag time large small test determine, as 95 ℃ ± 2 ℃ of technological requirements, be set in 85 ℃), then by the given Temperature Setting of oil temperature controller 12 in a value higher than technological requirement temperature (as 100 ℃, for Fast Heating), now, conduction oil 5 temperature are far below the given temperature value of oil temperature controller 12, this oil temperature detects low-temperature signal through temperature sensor 11 and delivers to oil temperature controller 12, because measured value is lower than set-point, so oil temperature controller 12 sends control signal and outputs to phase three-wire three solid-state relay module 14, phase three-wire three solid-state relay module 14 can be controlled three phase mains according to input signal size and output to the voltage amplitude on electrical heating elements 6, by heating power, change and control conduction oil temperature height.
Chemical mixing material 4 is by being coated on the conduction oil indirect on reaction pot 2 top layers, and when temperature reaches the temperature (being alarm temperature value) of estimating, reaction pot temperature display alarm instrument 9 is at once reported to the police and made reaction pot temperature alarming contact 10 closures.The closure of reaction pot temperature alarming contact 10, the external event contact 13 that is equivalent to oil temperature controller 12 is connected, meaning external event occurs, now, 95 ℃ of the temperature values (claiming the second set-point) that the set-point of oil temperature controller 12 was required to process stipulation by automatic force handoff by original 100 ℃ (claiming the first set-point), thus, oil temperature control system is slowly transitioned into little Deviation Control state, realized that estimating of temperature regulates and automatic returning process value fast, the control of transition stably.
According to technological requirement, reach chemical reaction temperature and after the reaction time, automatically complete whole production operations, the chemical intermediate that reaction finishes can be delivered to next process by outlet valve 7.
The utility model is not limited to above-mentioned preferred forms; anyone can draw other various forms of products under enlightenment of the present utility model; no matter but do any variation in its shape or structure; every have identical with a application or akin technical scheme, within all dropping on protection domain of the present utility model.
Claims (4)
1. a preconditioning autoregression formula temperature of reaction kettle control system, comprise electrothermal reaction still and temperature control system, it is characterized in that: described electrothermal reaction still comprises reactor housing (1), reaction pot (2) and be positioned at reactor housing (1) and reaction pot (2) between conduction oil (5), reaction pot (2) top is provided with at least one chemical raw material charging aperture, reaction pot (2) bottom is provided with discharging opening, outlet valve (7) is installed on described discharging opening, described reactor housing (1) top is provided with agitator (3), agitator (3) inserts in reaction pot (2), reactor housing (1) top is provided with conduction oil pouring orifice and overfall, reactor housing (1) bottom is provided with drain tap, on described drain tap, gate gurgle valve is installed, described temperature control system is by temperature sensing device, reaction pot temperature alarming instrument (9), oil temperature controller (12) and heater form, described temperature sensing device comprise be installed on the temperature sensor one (8) in reaction pot (2) and be installed on reactor housing (1) and reaction pot (2) between the interior temperature sensor two (11) of conduction oil (5), described temperature sensor one (8) is connected with reaction pot temperature alarming instrument (9), temperature sensor two (11) is connected with oil temperature controller (12), described heater comprises the electrical heating elements (6) inserting in reactor housing (1) bottom conduction oil (5) and the relay being connected with this electrical heating elements (6), described reaction pot temperature alarming instrument (9) connects oil temperature controller (12), oil temperature controller (12) connects described relay again, in described reaction pot temperature alarming instrument (9), be provided with reaction pot temperature alarming contact (10), in described oil temperature controller (12), be provided with oil temperature controller external event input contact (13), described reaction pot temperature alarming contact (10) is in parallel with oil temperature controller external event input contact (13).
2. preconditioning autoregression formula temperature of reaction kettle control system according to claim 1, is characterized in that: described relay is phase three-wire three solid-state relay module (14).
3. preconditioning autoregression formula temperature of reaction kettle control system according to claim 1 and 2, is characterized in that: described chemical raw material charging aperture is 3.
4. preconditioning autoregression formula temperature of reaction kettle control system according to claim 1 and 2, is characterized in that: described electrical heating elements (6) is 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420204345.4U CN203816624U (en) | 2014-04-24 | 2014-04-24 | Pre-adjusting self-regression type reaction kettle temperature control system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420204345.4U CN203816624U (en) | 2014-04-24 | 2014-04-24 | Pre-adjusting self-regression type reaction kettle temperature control system |
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| CN203816624U true CN203816624U (en) | 2014-09-10 |
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| CN201420204345.4U Expired - Lifetime CN203816624U (en) | 2014-04-24 | 2014-04-24 | Pre-adjusting self-regression type reaction kettle temperature control system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104881062A (en) * | 2015-06-01 | 2015-09-02 | 大连理工大学 | Quick and overregulation-free cooling crystallization reaction kettle temperature control method |
| CN115591493A (en) * | 2022-09-22 | 2023-01-13 | 海龙智能技术研究（珠海）有限公司（Cn） | Reaction kettle temperature control method |
-
2014
- 2014-04-24 CN CN201420204345.4U patent/CN203816624U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104881062A (en) * | 2015-06-01 | 2015-09-02 | 大连理工大学 | Quick and overregulation-free cooling crystallization reaction kettle temperature control method |
| CN115591493A (en) * | 2022-09-22 | 2023-01-13 | 海龙智能技术研究（珠海）有限公司（Cn） | Reaction kettle temperature control method |
| CN115591493B (en) * | 2022-09-22 | 2024-05-14 | 北京理工大学珠海学院 | Reaction kettle temperature control method |
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| GR01 | Patent grant | ||
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Granted publication date: 20140910 |
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| CX01 | Expiry of patent term |