CN203710984U - Large-capacity, high-temperature and high-pressure solvent thermal reaction kettle - Google Patents
Large-capacity, high-temperature and high-pressure solvent thermal reaction kettle Download PDFInfo
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- CN203710984U CN203710984U CN201420110729.XU CN201420110729U CN203710984U CN 203710984 U CN203710984 U CN 203710984U CN 201420110729 U CN201420110729 U CN 201420110729U CN 203710984 U CN203710984 U CN 203710984U
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- China
- Prior art keywords
- solvent thermal
- thermal reaction
- electric heating
- reaction kettle
- large capacity
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- 239000002904 solvent Substances 0.000 title claims abstract description 23
- 238000005485 electric heating Methods 0.000 claims abstract description 46
- 239000000463 material Substances 0.000 claims abstract description 22
- 238000005260 corrosion Methods 0.000 claims description 19
- 230000007797 corrosion Effects 0.000 claims description 18
- 229910001362 Ta alloys Inorganic materials 0.000 claims description 15
- 229910000856 hastalloy Inorganic materials 0.000 claims description 15
- 239000011248 coating agent Substances 0.000 claims description 12
- 238000000576 coating method Methods 0.000 claims description 12
- 238000003466 welding Methods 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 abstract description 8
- 238000012546 transfer Methods 0.000 abstract description 6
- 239000012530 fluid Substances 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 3
- 238000009434 installation Methods 0.000 description 8
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 8
- 239000004810 polytetrafluoroethylene Substances 0.000 description 8
- -1 for example Inorganic materials 0.000 description 5
- 238000005265 energy consumption Methods 0.000 description 4
- 238000001816 cooling Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 238000001514 detection method Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 235000013305 food Nutrition 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- 230000007812 deficiency Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000002421 anti-septic effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 239000002086 nanomaterial Substances 0.000 description 1
- 239000012429 reaction media Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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- Physical Or Chemical Processes And Apparatus (AREA)
Abstract
The utility model discloses a large-capacity, high-temperature and high-pressure solvent thermal reaction kettle, including a reaction kettle body and a flange cover, wherein an opening is arranged on the top of the reaction kettle body, a ring flange corresponding to the flange cover is arranged on the top of the reaction kettle body, the flange cover is connected to the ring flange on the top of the reaction kettle body, and a sealed chamber with a working volume not smaller than 1000 L is formed; an electric heating pipe is arranged on the flange cover, the electric heating pipe stretches into the reaction kettle body and is used for heating a material conveyed into the reaction kettle body and generating solvent thermal reaction conditions of working temperature of 450 DEG C and working pressure of 43 MPa. According to the large-capacity, high-temperature and high-pressure solvent thermal reaction kettle disclosed by the utility model, the electric heating pipe in the reaction kettle is used for directly heating the material, compared with the external heating manner, the condition that the external temperature of the reaction kettle is much higher than the working temperature does not occur, so that the safety of the reaction kettle is improved; meanwhile, the large-capacity, high-temperature and high-pressure solvent thermal reaction kettle disclosed by the utility model is used for directly heating a fluid material, so that the heat transfer speed is high, the thermal efficiency is high and the energy-saving effect is good.
Description
Technical field
The utility model relates to a kind of industrial reaction container, particularly relates to the large capacity HTHP solvent thermal reaction still of a kind of swept volume >=1000L, to meet the preparation requirement of the special materials such as Nano sol.
Background technology
At present, swept volume >=1000L, maximum operating temperature is 450 ℃, maximum working pressure is that large capacity HTHP solvent thermal reaction Fu China chemical industry of 43MPa is still in space state, can only depend on import, the shortage of this extraordinary reactor has seriously restricted the industrialized development of China's nano material, simultaneously, the large capacity high-temperature high-pressure reaction kettle of commonly using both at home and abroad at present remains in following deficiency: (1) is due to this swept volume >=1000L, maximum operating temperature is 450 ℃, maximum working pressure is that the large capacity high-temperature high-pressure reaction kettle of 43MPa belongs to high-pressure reaction vessel, therefore need larger wall thickness could meet condition of high voltage and require (wall thickness of this large capacity high-temperature high-pressure reaction kettle is in the scope of 200-500mm conventionally), and existing large capacity high-temperature high-pressure reaction kettle normally adopts external heat, external heat is owing to being subject to the impact of heat transfer temperature gradient, just will inevitably make the certain thickness temperature of reactor outer wall be much higher than the operating temperature in reactor, yet material intensity of (for example, more than 450 ℃) under hot conditions can decline greatly, therefore the mode of this external heat just will inevitably be destroyed the intensity of reactor outer wall to a greater degree, thereby affect the safety in utilization of reactor, heat due to external heat is ecto-entad transmission simultaneously, so heat transfer rate is slow, and energy consumption is larger, (2) because the reaction medium in reactor has stronger corrosivity under high-temperature and high-pressure conditions, therefore need to increase corrosion-proof lining at the inwall of reactor, yet the antiseptic property of the corrosion-resistant lining material adopting is at present poor, can not meet the preparation demand of the special materials such as Nano sol.
Utility model content
For the deficiencies in the prior art, the purpose of this utility model is to provide a kind of large capacity HTHP solvent thermal reaction still, solve existing reactor and adopt external heat easily to cause the certain thickness excess Temperature of outer wall and affect the problems such as intensity, the heat transfer rate of reactor is slow, energy consumption is large, solve reactor poor problem of anti-corrosion capability under high-temperature and high-pressure conditions simultaneously, make up China at the technological gap in large capacity high-temperature high-pressure reaction kettle field.
In order to solve the problems of the technologies described above, the utility model has adopted following technical scheme:
A kind of large capacity HTHP solvent thermal reaction still, comprise reactor body and blind flange, the top of described reactor body is with opening, and the top of reactor body has the ring flange corresponding with blind flange, described blind flange is connected on the ring flange of reactor bodies top, and forms the airtight chamber of swept volume >=1000L; On blind flange, be provided with electric heating tube, described electric heating tube stretches in reactor body, for heating being transported to the intrinsic material of reactor.
Further, be provided with 12 straight pipe type electric heating tubes on described blind flange, described electric heating tube be take the center of blind flange and is distributed around same even circumferential as the center of circle.
Further, the outer setting of described electric heating tube has the sleeve pipe of being made by resistant material.
Further, described sleeve pipe adopts Hastelloy or tantalum alloy to make.
Further, described electric heating tube is fixed on blind flange by the mode of welding or be threaded.
Further, the inwall of described reactor body is provided with corrosion-resistant coating.
Further, described corrosion-resistant coating adopts Hastelloy or tantalum alloy built-up welding to form.
Further, the thickness of described corrosion-resistant coating is 4-6mm.
Further, the top of described blind flange is provided with the feed pipe being communicated with described airtight chamber, and the bottom of described reactor body is provided with the discharge nozzle being communicated with described airtight chamber.
Further, between described blind flange and the ring flange of reactor bodies top, be provided with pad, described pad adopts Hastelloy or tantalum alloy to make.
The beneficial effects of the utility model are:
(1) the utility model adopts the electric heating tube in reactor directly material to be heated, compare external heat, there will not be reactor external temperature to be much higher than the situation of operating temperature, farthest reduced the impact of high temperature on reactor intensity, guarantee the intensity of reactor, improved the safety in utilization of reactor; The direct convection cell material of the utility model heats simultaneously, and heat transfer rate is fast, has reduced ecto-entad and has carried out heat conduction and the energy consumption of generation, good energy-conserving effect.
(2) electric heating tube of the present utility model is connected on blind flange, during installation, first electric heating tube is fixed on blind flange, then electric heating tube is stretched in reactor body, by screw bolt and nut, blind flange is connected on the ring flange of reactor bodies top simultaneously, this kind of design conveniently installed electric heating tube, also facilitates later stage maintenance simultaneously.
(3) reactor inner body wall of the present utility model is provided with the corrosion-resistant coating of being made by Hastelloy or tantalum alloy, for example, and Hastelloy or tantalum alloy are compared general anticorrosive (polytetrafluoroethylene (PTFE)), under high-temperature and high-pressure conditions, there is stronger corrosion resistance, therefore the anticorrosion liner that employing is made by Hastelloy or tantalum alloy can improve the Corrosion Protection of reactor, to meet the preparation requirement of the special materials such as Nano sol.
accompanying drawing explanation
Fig. 1 is structural principle schematic diagram of the present utility model.
The specific embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
Referring to Fig. 1, a kind of large capacity HTHP solvent thermal reaction still, comprise reactor body 1 and blind flange 2, the top of reactor body 1 is with opening, and the top of reactor body 1 has the ring flange corresponding with blind flange 2, blind flange 2 is bolted on the ring flange of reactor bodies top, and forms the airtight chamber of swept volume >=1000L; On blind flange 2, be provided with electric heating tube 3, electric heating tube 3 stretches in reactor body 1, during use, first fluid foods is transported in reactor body 1, and then blind flange 2 is fixed on the ring flange of reactor bodies top, now electric heating tube 3 stretches in reactor body 1 and contacts with fluid foods, for the fluid foods in reactor body 1, heats, and generation operating temperature is the solvent thermal reaction condition that 450 ℃, operating pressure are 43MPa.The utility model heats by the direct convection cell material of electric heating tube 3 in reactor body 1, compare external heat, there will not be reactor external temperature to be much higher than the situation of operating temperature, farthest reduced the impact of high temperature on reactor intensity, guarantee the intensity of reactor, improved the safety in utilization of reactor; The direct convection cell material of the utility model heats simultaneously, and heat transfer rate is fast, and the thermal efficiency is high, has reduced ecto-entad and has carried out heat conduction and the energy consumption of generation, good energy-conserving effect.
As preferably, on blind flange 2, be provided with 12 straight pipe type electric heating tubes 3, the power of electric heating tube 3 is 15KW, electric heating tube 3 be take the center of blind flange 2 and is distributed around same even circumferential as the center of circle, in order to guarantee that electric heating tube 3 can stretch in reactor body 1, the circle diameter that electric heating tube 3 distributes is less than the diameter of reactor bodies top opening.Adopt this kind of design can make to a greater degree the solvent in reactor body 1 be heated more even.
As preferably, the outer setting of electric heating tube 3 has the sleeve pipe of being made by resistant material, and sleeve pipe, for electric heating tube 3 is protected, avoids electric heating tube 3 to be corroded by the Korrosionsmedium in reactor.During installation, directly electric heating tube 3 is inserted to sleeve pipe, easy for installation.In the present embodiment; sleeve pipe adopts Hastelloy or tantalum alloy (Ta >=90wt%) to make; for example, and Hastelloy or tantalum alloy are compared general anticorrosive (polytetrafluoroethylene (PTFE)), under high-temperature and high-pressure conditions, Corrosion Protection is better, more can effectively to electric heating tube 3, protect.
As preferably, electric heating tube 3 is fixed on blind flange 2 by the mode of welding or be threaded, during installation, first electric heating tube 3 is fixed on blind flange 2, then motor heat pipe 3 is stretched in reactor body 1, blind flange 2 is connected on the ring flange of reactor bodies top simultaneously by screw bolt and nut, this design is more reasonable, conveniently electric heating tube is installed, also facilitated later stage maintenance simultaneously.For electric heating tube 3 can be connected with external power source, on blind flange 2, there are 12 through hole 2a that extend and run through along blind flange thickness direction, the connecting line of electric heating tube 3 is stretched out with external power source and is connected by through hole 2a.In the present embodiment, the mode that electric heating tube 3 is threaded connection is fixed on blind flange 2, and one end of electric heating tube 3 is with external screw thread, in through hole 2a, be threaded, during installation, directly electric heating tube 3 is tightened on blind flange 2, electric heating tube 3 is easy for installation and removal like this.
As preferably, the inwall of reactor body 1 is provided with corrosion-resistant coating, and corrosion-resistant coating corrodes the inwall of reactor body 1 in order to prevent Korrosionsmedium.In the present embodiment; corrosion-resistant coating adopts Hastelloy or tantalum alloy (Ta >=90wt%) to make; for example, and Hastelloy or tantalum alloy are compared general anticorrosive (polytetrafluoroethylene (PTFE)); under high-temperature and high-pressure conditions, Corrosion Protection is better, more can effectively to the inwall of reactor body 1, protect.Preferably, the thickness of corrosion-resistant coating is 4-6mm, and in the present embodiment, the thickness of corrosion-resistant coating is 5mm, adds man-hour, the cantilever of built-up welder can be stretched into and in reactor body 1, carry out built-up welding.
As preferably, the top center of blind flange 2 is provided with feed pipe 4, the bottom centre of reactor body 1 is provided with discharge nozzle 5, during installation, blind flange 2 is fixed on the ring flange of reactor bodies top, and forming the airtight chamber of swept volume >=1000L, feed pipe 4 and discharge nozzle 5 Jun Yugai airtight chamber are communicated with.What deserves to be explained is, the safety valve tube connector 8 that the pressure transmitter tube connector 7 He Yu airtight chamber that be also provided with thermocouple 6 for detection of reactor internal temperature on reactor body 1, are communicated with airtight chamber are communicated with, wherein, thermocouple 6 is for detection of the temperature of reactor inside, when temperature reaches operating temperature, electric heating tube 3 stops heating; Pressure transmitter tube connector 7 is connected with pressure transmitter, and pressure transmitter is for detection of the pressure of reactor inside; On safety valve tube connector 8, be provided with safety valve, when the pressure of reactor inside reaches maximum working pressure (MWP), open the safety-valve and carry out release to eliminate safe hidden trouble.Reactor of the present utility model is when work, reactor body 1 fixes on the ground by supporting mechanism, material is by pump in feed pipe 4 is transported to reactor body 1, and then electric heating tube 3 energising is heated material, when the temperature that reactor inside detected when thermocouple 6 reaches operating temperature, electric heating tube 3 stops heating, meanwhile, in heating process, the pressure of reactor inside increases, when the pressure in reactor reaches maximum working pressure (MWP), open the safety-valve and carry out release; After material reaction completes, open the valve on discharge nozzle 5, by the discharge of materials that generates after reaction in product storage tank; In addition, the outer setting of reactor body 1 has cooling coil 9, and after material reaction completes, the recirculated water in water tank is transported in cooling coil 9 and carries out cooling to reactor.Owing to being provided with feed pipe 4 and discharge nozzle 5 on reactor body 1, be so more conducive to realize automatic feed and discharging.
As preferably, between blind flange 2 and the ring flange of reactor bodies top, be provided with pad, during installation, by screw bolt and nut, blind flange 2 is connected on the ring flange of reactor bodies top, pad is for increasing the sealing effectiveness between upper and lower two ring flanges.In the present embodiment, pad adopts Hastelloy or tantalum alloy (Ta >=90wt%) to make, for example, and Hastelloy or tantalum alloy are compared general anticorrosive (polytetrafluoroethylene (PTFE)), under high-temperature and high-pressure conditions, Corrosion Protection is better, can effectively prevent from being corroded, thereby guarantee better the sealing effectiveness between upper and lower two ring flanges.
Finally it should be noted that, above embodiment is only in order to the technical solution of the utility model to be described but not restriction technologies scheme, although applicant has been described in detail the utility model with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, those are modified to the technical solution of the utility model or are equal to replacement, and do not depart from aim and the scope of the technical program, all should be encompassed in the middle of claim scope of the present utility model.
Claims (10)
1. a large capacity HTHP solvent thermal reaction still, comprise reactor body (1), it is characterized in that, also comprise blind flange (2), the top of described reactor body (1) is with opening, and the top of reactor body (1) has the ring flange corresponding with blind flange (2), and described blind flange (2) is connected on the ring flange of reactor bodies top, and forms the airtight chamber of swept volume >=1000L; On blind flange (2), be provided with electric heating tube (3), described electric heating tube (3) stretches in reactor body (1), for the material being transported in reactor body (1) is heated.
2. large capacity HTHP solvent thermal reaction still according to claim 1, it is characterized in that, on described blind flange (2), be provided with 12 straight pipe type electric heating tubes (3), described electric heating tube (3) be take the center of blind flange (2) and is distributed around same even circumferential as the center of circle.
3. large capacity HTHP solvent thermal reaction still according to claim 1, is characterized in that, the outer setting of described electric heating tube (3) has the sleeve pipe of being made by resistant material.
4. large capacity HTHP solvent thermal reaction still according to claim 3, is characterized in that, described sleeve pipe adopts Hastelloy or tantalum alloy to make.
5. large capacity HTHP solvent thermal reaction still according to claim 1, is characterized in that, described electric heating tube (3) is fixed on blind flange (2) by the mode of welding or be threaded.
6. according to the large capacity HTHP solvent thermal reaction still described in any one in claim 1-5, it is characterized in that, the inwall of described reactor body (1) is provided with corrosion-resistant coating.
7. large capacity HTHP solvent thermal reaction still according to claim 6, is characterized in that, described corrosion-resistant coating adopts Hastelloy or tantalum alloy built-up welding to form.
8. large capacity HTHP solvent thermal reaction still according to claim 6, is characterized in that, the thickness of described corrosion-resistant coating is 4-6mm.
9. according to the large capacity HTHP solvent thermal reaction still described in any one in claim 1-5, it is characterized in that, the top of described blind flange (2) is provided with the feed pipe (4) being communicated with described airtight chamber, and the bottom of described reactor body (1) is provided with the discharge nozzle (5) being communicated with described airtight chamber.
10. according to the large capacity HTHP solvent thermal reaction still described in any one in claim 1-5, it is characterized in that, between described blind flange (2) and the ring flange of reactor bodies top, be provided with pad, described pad adopts Hastelloy or tantalum alloy to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420110729.XU CN203710984U (en) | 2014-03-12 | 2014-03-12 | Large-capacity, high-temperature and high-pressure solvent thermal reaction kettle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420110729.XU CN203710984U (en) | 2014-03-12 | 2014-03-12 | Large-capacity, high-temperature and high-pressure solvent thermal reaction kettle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203710984U true CN203710984U (en) | 2014-07-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420110729.XU Expired - Lifetime CN203710984U (en) | 2014-03-12 | 2014-03-12 | Large-capacity, high-temperature and high-pressure solvent thermal reaction kettle |
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| CN (1) | CN203710984U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103801226A (en) * | 2014-03-12 | 2014-05-21 | 重庆市中工新材料有限公司 | Large-capacity high-temperature high-pressure solvent thermal reaction kettle |
-
2014
- 2014-03-12 CN CN201420110729.XU patent/CN203710984U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103801226A (en) * | 2014-03-12 | 2014-05-21 | 重庆市中工新材料有限公司 | Large-capacity high-temperature high-pressure solvent thermal reaction kettle |
| CN103801226B (en) * | 2014-03-12 | 2016-04-20 | 重庆市中工新材料有限公司 | Large Copacity HTHP solvent thermal reaction still |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140716 |
|
| CX01 | Expiry of patent term |