CN201841010U - Small and medium-sized adiabatic reactor - Google Patents
Small and medium-sized adiabatic reactor Download PDFInfo
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- CN201841010U CN201841010U CN201020591940XU CN201020591940U CN201841010U CN 201841010 U CN201841010 U CN 201841010U CN 201020591940X U CN201020591940X U CN 201020591940XU CN 201020591940 U CN201020591940 U CN 201020591940U CN 201841010 U CN201841010 U CN 201841010U
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Abstract
The utility model relates to a small and medium-sized adiabatic reactor, which is characterized in that the small and medium-sized adiabatic reactor comprises a reaction tube, an inlet and an outlet of process materials are respectively positioned at the upper end and the lower end of the reaction tube, a first temperature measuring tube is mounted inside the reaction tube, a heat insulation jacket capable of being evacuated is arranged outside the reaction tube, an upper isothermal piece, a lower isothermal piece, an upper heat preservation layer and a lower heat preservation layer are respectively arranged outside the upper portion and the lower portion of the jacket, a lateral wall heater and a heat preservation layer are arranged on the outer side of the jacket, a first temperature measuring element and a second temperature measuring element are respectively arranged in the first temperature measuring tube and at the vertically welded positions of the heat insulation jacket and the reaction tube, heaters in the upper isothermal piece and the lower isothermal piece are respectively controlled in a cascade manner, so that internal and external temperature of material inlet and outlet positions of the reaction tubes is tracked, a temperature measuring element positioned in a catalyst filling area in the first temperature measuring tube controls the lateral wall heater of the jacket in the cascade manner, so that temperature on two sides of the jacket is tracked, and the inner surface of the heat insulation jacket is electropolished or electroplated. The adiabatic precision of the small and medium-sized adiabatic reactor with simple structure is improved greatly, and further the small and medium-sized adiabatic reactor can also be used as an isothermal reactor, and has the advantages of space and cost economization and the like by integrating the adiabatic reactor and the isothermal reactor.
Description
Technical field
The utility model relates to a kind of middle-size and small-size adiabatic reactor.
Background technology
Scientific experimentations such as new chemical materials exploitation, new technology exploration, study on mechanism usually need be carried out under the condition of thermal insulation or isothermal, in order to satisfy the requirement of different tests operating mode, have developed various informative adiabatic reactor and isothermal reactor.But the reaction of carrying out for middle-size and small-size experimental rig, absorption or liberated heat are very limited, extraneous factor usually causes the variation of reaction temperature greater than reaction itself to the influence of reaction temperature, the DESIGN OF REACTOR exploitation still is domestic and international scientific worker's focus and difficult point, particularly adiabatic reactor so far.
Common adiabatic reactor is the multistage electric furnace heating by control reactor outer wall, makes the outside wall temperature of reactor follow the tracks of the inside reactor temperature, the reactor internal-external temperature difference is reduced to minimum, thereby eliminates heat loss, reaches the adiabatic effect of simulation.But this adiabatic reactor comes with some shortcomings: 1, the temperature of adiabatic reaction changes with the flow direction of material, and for the reaction of strong heat release or strong heat absorption, thermograde is very obvious.Multistage electric furnace reactor heating is artificially reactor to be divided into plurality of sections, and is equal as far as possible at each section inner control reactor internal and external temperature.The temperature control of each section electric furnace is to realize by the temperature of following the tracks of point for measuring temperature position in the reactor, the temperature of each point for measuring temperature is a single value in the reactor, represented the mean temperature of this section reactor, and the electric furnace of this section is promptly worked under this mean temperature, thereby reactor become the temperature control value at the multistage isothermal reactor that constantly changes, and electric furnace hop count, point for measuring temperature position and temperature measurement accuracy are restricting adiabatic simulate effect; 2, reaction heat is uncontrollable along the loss of reaction tube direction, usually is left in the basket; 3, the temperature control of electric furnace is the passive thermometric that depends in the reactor, is subjected to the influence of thermometric components and parts diabatic process and electric furnace thermal inertia, and temperature is followed the tracks of and had hysteresis; 4, because the thermal capacitance of outside electric furnace is big, can't simulate endothermic reaction process; 5, multistage temperature control, control loop is many, the electric cooker structure complexity.Thereby multistage electric furnace heating simulation adiabatic reaction also requires further improvement.
Common isothermal reactor has multistage electric furnace temperature control reactor, constant temperature bath reactor and sand-bath reactor or the like, and technology is ripe relatively.Wherein the temperature range that is suitable for of multistage electric furnace temperature control reactor is wide, easy to operate, but temperature-controlled precision is relatively poor relatively, and is not explosion-proof; Isothermal bath reactor temperature-controlled precision is higher, but the temperature of using is limited, with oil be heat medium generally be lower than 350 ℃, with salt made from earth containing a comparatively high percentage of sodium chloride be heat medium generally be lower than 550 ℃; Sand-bath reactor isothermal is effective, heating-up temperature height, but complex structure, and equipment investment is big.The selection of isothermal reactor is carried out according to requirements such as test temperature, temperature-controlled precisions, general all can reach satisfied effect.
Summary of the invention
The purpose of this utility model provides a kind of adiabatic precision and middle-size and small-size adiabatic reactor simple in structure of improving greatly.
In order to achieve the above object, the technical solution of the utility model has provided a kind of middle-size and small-size adiabatic reactor, it is characterized in that, comprise reaction tube, the import of process stream and outlet lay respectively at the top and bottom of reaction tube, dress temperature tube one in the reaction tube, the insulating jacket of peripheral hardware vacuum-pumping, occasionally thermal resistance temperature element of many thermoelectricity is arranged in the temperature tube one, weld is provided with temperature element one and two respectively about insulating jacket and reaction tube, establishes a temperature element at least again at the reaction tube middle part.The mouth of pipe one is left by top in the side of insulating jacket, and the outside is provided with sidewall heater and heat-insulation layer, and the temperature control hop count of heater is suitable with the number of middle part temperature element.Be respectively equipped with outside the top of insulating jacket and the bottom, on following isothermal body reaches, following heat-insulation layer, last isothermal body and following isothermal body contact with the upper surface and the lower surface of insulating jacket respectively, and fit closely with all contact-making surfaces of reaction tube and insulating jacket, in last isothermal body, be provided with temperature element three and upper heater, in following isothermal body, be provided with temperature element four and reach heater down, wherein, the break-make of temperature element one tandem control upper heater, the control of temperature element two tandems is the break-make of heater down, carrying out reaction tube turnover material place internal and external temperature follows the tracks of, the corresponding outside heater temperature control section of each middle part temperature element tandem control is carried out insulating jacket both sides temperature and is followed the tracks of.
Further, be provided with temperature tube two in described insulating jacket, be provided with at least one temperature element in temperature tube two, leave the mouth of pipe two in the bottom of described insulating jacket, the mouth of pipe two is as heat medium emptying and the outlet of chuck inner chamber sweep gas.
Described insulating jacket inner surface is carried out electropolishing or electroplating processes.
Its adiabatic precision of a kind of middle-size and small-size adiabatic reactor that the utility model provides improves greatly and is simple in structure, further, the middle-size and small-size adiabatic reactor that the utility model provides can also be as isothermal reactor, thermal insulation and two kinds of reactors of isothermal are become one, have advantages such as the space of saving and cost, the implementation method of a kind of thermal insulation or isothermal environment is provided for scientific experimentations such as new chemical materials exploitation, new technology exploration, study on mechanism.
Description of drawings
A kind of adiabatic isothermal dual purpose reactor structure and principle schematic that Fig. 1 provides for the utility model;
A kind of adiabatic reactor structure and principle schematic that Fig. 2 provides for the utility model.
The specific embodiment
Specify the utility model below in conjunction with embodiment.
Embodiment
As shown in Figure 1, be a kind of adiabatic isothermal dual purpose reactor that the utility model provides, tee E represents temperature thermocouple/thermal resistance in the figure, TI represents that temperature shows, TIC represents that temperature shows and control, and TY represents thermostat relay, and HTR represents heating jacket/electric furnace/heating rod.This reactor comprises reaction tube 1, establish temperature tube 2 in the reaction tube 1, peripheral hardware insulating jacket 3, four temperature elements are arranged in the temperature tube 2, be respectively temperature element c and the temperature element d that is positioned at temperature tube 2 tops and bottom, between temperature element c and temperature element d, be provided with middle part temperature element a and middle part temperature element b.Insulating jacket 3 and reaction tube 1 about weld respectively establish a temperature element, the quantity of reaction tube 1 middle part catalyst filling zone temperature element is definite according to requirement of experiment, is no less than one.Insulating jacket 3 inner surfaces need electropolishing or electroplate to increase fineness, improve reflection efficiency.The chuck inner chamber 4 of insulating jacket 3 was in the state of vacuum and filling heat medium respectively when reactor was used for adiabatic and isothermal reaction.Be provided with temperature tube 5 in the insulating jacket 3, heat medium temperature element E and heat medium temperature element F are housed in temperature tube 5, for the temperature detection of heat medium in the insulating jacket 3.Insulating jacket 3 leaves the mouth of pipe 6 in the bottom, as heat medium emptying and the outlet of chuck inner chamber sweep gas.Insulating jacket 3 leaves the mouth of pipe 7 in the side by top, Pressure gauge, vacuumizes interface, heat medium/sweep gas inlet and all is connected by this mouth of pipe with heat medium overflow outlet, switches by valve during different user mode.Insulating jacket 3 outsides are provided with heater 8, and heater 8 is generally electric furnace or electrical heating cover.Heater 8 is one section temperature control or two sections temperature controls, and in the present embodiment, heater 8 is two sections temperature controls, and the temperature of each section is controlled according to middle part temperature element a and the middle part measured temperature of temperature element b respectively.The outside of heater 8 is a heat-insulation layer 9, and heater 8 and heat-insulation layer 9 can be processed as one, and splits hinge and connects, and is easy to open.Insulating jacket 3 upper and lower sides are respectively equipped with cylindrical isothermal body 11 and the cylindrical isothermal body 14 down of going up, material is metal materials such as good copper of heat conductivility or aluminium, center drilling, be installed in the upper and lower side of reaction tube 1, and contact with insulating jacket 3 upper and lower end faces, all contact-making surfaces of isothermal body and reaction tube 1 and insulating jacket 3 must be fitted closely.On last isothermal body 11 and following isothermal body 14, two holes are arranged respectively, for temperature element C, temperature element D, go up isothermal body heater 10 and under isothermal body heater 13 install and fix.The position of opening of temperature element C and temperature element D is as far as possible near reaction tube 1.The upper and lower of last isothermal body 11 and following isothermal body 14 is to go up heat-insulation layer 12 and following heat-insulation layer 15, and its thickness is moderate, can realize being rapidly heated and radiating and cooling of isothermal body 11 and following isothermal body 14.
During as adiabatic reactor, close the valve and the heat-conducting medium discharging hole valve of heat-conducting medium/sweep gas inlet and heat-conducting medium overflow outlet before the use earlier, open the valve of Pressure gauge front end, close the vavuum pump valve that vacuumizes interface after the vacuum in the insulating jacket 3 drops to constant limiting value, the vacuum state of insulating jacket 3 has weakened the heat loss that reaction tube 1 and outside convection heat transfer' heat-transfer by convection cause greatly.Before formally carrying out reaction test, need to give reaction tube 1, insulating jacket 3 earlier, go up isothermal body 11 and following isothermal body 14 preheatings, in this process, reaction tube 1 internal and external temperature is not followed the tracks of, and the initial value in each temperature control loop is manually set.Behind initial temperature stabilization, drop into reaction mass, by the temperature element c in the temperature tube 2 and temperature element d respectively the detection reaction device be positioned at the temperature of insulating jacket 3 and reaction tube 1 welding position up and down, go up the break-make of isothermal body 11 and following isothermal body 14 better-than-average temperature body heaters 10 and following isothermal body heater 13 with this difference tandem control, the temperature of temperature element C and temperature element D will be followed the temperature of temperature element c and temperature element d all the time, promptly go up the turnover temperature that the temperature of isothermal body 11 and following isothermal body 14 is followed the tracks of material all the time respectively.And the weld of insulating jacket 3 and reaction tube 1 is the gateway that reactor passes through the conductive thermal exchange heat, and the temperature tracking at this two place makes and the internal and external temperature approximately equal stoped reaction tube to conduct the heat loss that causes by heat to the full extent.Reactor interior middle part temperature element a and middle part temperature element b difference tandem are controlled first section and second section of chuck external heater, the temperature of first section of heater and second section respectively with reactor in the temperature of middle part temperature element a and middle part temperature element b approaching, be insulating jacket 3 both sides temperature approximately equals, the temperature difference is more little, heat radiation is more little, whole electropolishing of insulating jacket 3 inner surfaces or plating have increased surperficial fineness and reflection efficiency in addition, and making heat radiation conduct heat can ignore.Weakened the formation condition of reactor with the extraneous three kinds of approach that conduct heat to the full extent by above measure, the adiabatic precision of reactor improves greatly.
During as isothermal reactor, open manometric valve, introduce heat medium by heat-conducting medium/sweep gas inlet.Heater 8, under the heating of isothermal body heater 10 and following isothermal body heater 13, the heat medium intensification of being heated reaches design temperature.Because heat medium has good thermal conductivity and flowability, approximately think that reaction tube 1 is under the isoperibol and work.In order to aggravate the convection effects of heat medium in insulating jacket 3, there is certain gradient successively or alternately in the setting value of heater 8, last isothermal body heater 10 and following isothermal body heater 13.The temperature of media in temperature element difference detection reaction pipe 1 in temperature tube 2 and the temperature tube 5 and the insulating jacket 3 need not tandem control external heated element.In the use, the valve of heat-conducting medium overflow outlet is in open mode all the time, expands in order to heat-conducting medium.Reactor is opened the valve of the mouth of pipe 6 and is discharged heat medium before being converted to the adiabatic reactor use by isothermal reactor, by purging mouthful introducing steam or other purge gas chuck is cleaned out.
If only be used for adiabatic reaction, DESIGN OF REACTOR can further be simplified, and as shown in Figure 2, the temperature tube 5 and the mouth of pipe 6 of insulating jacket 3 can omit.
Claims (3)
1. middle-size and small-size adiabatic reactor, it is characterized in that, comprise reaction tube (1), the import of process stream and outlet lay respectively at the top and bottom of reaction tube (1), dress temperature tube (2) in the reaction tube (1), the insulating jacket of peripheral hardware vacuum-pumping (3), occasionally thermal resistance temperature element of at least one thermoelectricity is arranged in the temperature tube (2), chuck (3) and reaction tube (1) up and down weld first temperature element (c) and second temperature element (d) are set respectively, at least again establish a temperature element at reaction tube (1) middle part, the mouth of pipe (7) is left by top in the side of insulating jacket (3), the outside is provided with sidewall heater (8) and heat-insulation layer (9), the number of the temperature control hop count of sidewall heater (8) and reaction tube (1) middle part temperature element is suitable, be respectively equipped with isothermal body (11) outside the top of insulating jacket (3) and the bottom, following isothermal body (14) reaches and goes up heat-insulation layer (12), following heat-insulation layer (15), last isothermal body (11) and following isothermal body (14) contact with the upper surface and the lower surface of insulating jacket (3) respectively, and fit closely with all contact-making surfaces of reaction tube (1) and insulating jacket (3), in last isothermal body (11), be provided with the 3rd temperature element (C) and upper heater (10), in following isothermal body (14), be provided with the 4th temperature element (D) and reach heater (11) down, wherein, the break-make of first temperature element (c) tandem control upper heater (10), the control of second temperature element (d) tandem is the break-make of heater (11) down, carrying out reaction tube turnover material place internal and external temperature follows the tracks of, the corresponding outside heater temperature control section of each middle part temperature element tandem control is carried out insulating jacket both sides temperature and is followed the tracks of.
2. a kind of middle-size and small-size adiabatic reactor as claimed in claim 1, it is characterized in that, in described insulating jacket (3), be provided with second temperature tube (5), in second temperature tube (5), be provided with at least one temperature element, leave the mouth of pipe (6) in the bottom of described insulating jacket (3), the mouth of pipe (6) is as heat medium emptying and the outlet of chuck inner chamber sweep gas, and when isothermal reaction, the chuck inner chamber (4) of insulating jacket (3) is in the state of filling heat medium.
3. a kind of middle-size and small-size adiabatic reactor as claimed in claim 1 or 2 is characterized in that, described insulating jacket (4) inner surface is carried out electropolishing or electroplating processes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020591940XU CN201841010U (en) | 2010-11-04 | 2010-11-04 | Small and medium-sized adiabatic reactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020591940XU CN201841010U (en) | 2010-11-04 | 2010-11-04 | Small and medium-sized adiabatic reactor |
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| Publication Number | Publication Date |
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| CN201841010U true CN201841010U (en) | 2011-05-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201020591940XU Expired - Lifetime CN201841010U (en) | 2010-11-04 | 2010-11-04 | Small and medium-sized adiabatic reactor |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101961628A (en) * | 2010-11-04 | 2011-02-02 | 迈瑞尔实验设备（上海）有限公司 | Small and medium heat-insulating reactor |
| CN109211422A (en) * | 2018-10-24 | 2019-01-15 | 中国计量大学 | Application method based on coal gasifier outside wall temperature monitoring imitative experimental appliance |
| CN109405999A (en) * | 2018-10-24 | 2019-03-01 | 中国计量大学 | A kind of imitative experimental appliance of pair of coal gasifier outside wall temperature variation monitoring |
-
2010
- 2010-11-04 CN CN201020591940XU patent/CN201841010U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101961628A (en) * | 2010-11-04 | 2011-02-02 | 迈瑞尔实验设备（上海）有限公司 | Small and medium heat-insulating reactor |
| CN101961628B (en) * | 2010-11-04 | 2013-03-27 | 迈瑞尔实验设备（上海）有限公司 | Small and medium heat-insulating reactor |
| CN109211422A (en) * | 2018-10-24 | 2019-01-15 | 中国计量大学 | Application method based on coal gasifier outside wall temperature monitoring imitative experimental appliance |
| CN109405999A (en) * | 2018-10-24 | 2019-03-01 | 中国计量大学 | A kind of imitative experimental appliance of pair of coal gasifier outside wall temperature variation monitoring |
| CN109405999B (en) * | 2018-10-24 | 2020-11-10 | 中国计量大学 | A simulation experiment device for monitoring the temperature change of the outer wall of coal gasifier |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20110525 Effective date of abandoning: 20130327 |
|
| RGAV | Abandon patent right to avoid regrant |