CN214863465U - Microwave vertical furnace for catalytic synthesis - Google Patents
Microwave vertical furnace for catalytic synthesis Download PDFInfo
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- CN214863465U CN214863465U CN202121031518.3U CN202121031518U CN214863465U CN 214863465 U CN214863465 U CN 214863465U CN 202121031518 U CN202121031518 U CN 202121031518U CN 214863465 U CN214863465 U CN 214863465U
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- pipe
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- microwave
- fixed
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- 238000007036 catalytic synthesis reaction Methods 0.000 title claims abstract description 18
- 238000006243 chemical reaction Methods 0.000 claims abstract description 48
- 238000007789 sealing Methods 0.000 claims abstract description 23
- 238000004321 preservation Methods 0.000 claims abstract description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 41
- 238000001816 cooling Methods 0.000 claims description 29
- 239000000498 cooling water Substances 0.000 claims description 8
- 239000003054 catalyst Substances 0.000 claims description 7
- 238000005192 partition Methods 0.000 claims description 6
- 230000015572 biosynthetic process Effects 0.000 abstract description 4
- 238000003786 synthesis reaction Methods 0.000 abstract description 4
- 239000007789 gas Substances 0.000 description 11
- 238000010438 heat treatment Methods 0.000 description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 5
- 229910052799 carbon Inorganic materials 0.000 description 5
- 238000000034 method Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 150000001336 alkenes Chemical class 0.000 description 2
- 238000009529 body temperature measurement Methods 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 description 2
- 239000012495 reaction gas Substances 0.000 description 2
- 239000002028 Biomass Substances 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 239000011358 absorbing material Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- KZHJGOXRZJKJNY-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Si]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O KZHJGOXRZJKJNY-UHFFFAOYSA-N 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 229920001973 fluoroelastomer Polymers 0.000 description 1
- 239000007770 graphite material Substances 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229910052863 mullite Inorganic materials 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 238000005453 pelletization Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
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Abstract
The utility model discloses a microwave shaft furnace for catalytic synthesis relates to microwave equipment technical field. The microwave shaft furnace that gas catalytic synthesis used includes the reaction tube of coaxial setting, the heat preservation, a housing, be provided with microwave generating device on the casing lateral wall, be provided with the installing support on the casing lateral wall, casing top sealing connection has first fixed pipe, first fixed pipe top sealing is provided with the intake pipe, casing bottom sealing connection has the fixed pipe of second, be provided with the outlet duct on the fixed tub of lateral wall of second, the fixed socle of second has K type thermocouple, reaction tube one end is sealed to be pegged graft in first fixed intraductal, the reaction tube other end is sealed to be pegged graft in the fixed intraductal of second. The microwave is adopted to heat quickly and uniformly, so that the catalytic synthesis of the gas is accelerated, and the gas synthesis efficiency is improved.
Description
Technical Field
The utility model relates to a microwave equipment technical field, concretely relates to microwave shaft furnace for catalytic synthesis.
Background
Gas catalytic synthesis mainly refers to the conversion of carbonaceous resources such as biomass, natural gas, coal and the like into CO, H2Then, the liquid combustible olefin is prepared through Fischer-Tropsch synthesis catalytic conversion, and carbon resources of high carbon resources are coupled with hydrogen resources of low carbon resources, so that carbon emission in the utilization process of the traditional high carbon resources can be greatly reduced. In the process of preparing olefin, CO and H are mainly used2The mixed gas is catalytically synthesized at high temperature, and the uniformity of heating in the process directly influences the conversion rate of the reaction and the completion rate of the reaction. The conventional heating equipment such as an electric heating furnace and a gas kiln has low heating rate, high energy consumption and poor uniformity. Therefore, it is necessary to develop a device with high heating rate, good uniformity and good gas tightness to improve the gas synthesis efficiency.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a microwave shaft furnace for catalytic synthesis solves the problem that current firing equipment heating rate is low, the energy consumption is high.
In order to solve the technical problem, the utility model adopts the following technical scheme: a microwave shaft furnace for catalytic synthesis is characterized in that: including the reaction tube of coaxial setting, the heat preservation, a housing, be provided with microwave generating device on the casing lateral wall, be provided with the installing support on the casing lateral wall, casing top sealing connection has first fixed pipe, first fixed pipe top sealing is provided with the intake pipe, casing bottom sealing connection has the fixed pipe of second, be provided with the outlet duct on the fixed tub of lateral wall of second, it has K type thermocouple to peg graft to the fixed socle of second bottom of tube portion, the sealed grafting of reaction tube one end is in first fixed intraductal, the sealed grafting of the reaction tube other end is in the fixed intraductal of second.
A further technical proposal is that two infrared temperature measuring devices are distributed on the outer side wall of the shell along the length direction; the microwave generating device is provided with two groups along the length direction of the shell, wherein one group comprises two microwave generating devices and is arranged opposite to the infrared temperature measuring device, and the other group comprises three microwave generating devices and is uniformly distributed along the length direction of the shell.
A further technical scheme is that a baffle plate is arranged in the reaction tube, and a wave-absorbing carrier adsorbed with a catalyst is arranged above the baffle plate.
A further technical scheme is that connecting flanges are arranged at two ends of the first fixed pipe, an air inlet pipe is welded at the top of the first fixed pipe, a groove is formed in the inner side wall of the first fixed pipe, and a sealing ring is arranged in the groove.
The technical scheme is that connecting flanges are arranged at two ends of the second fixing pipe, an air outlet pipe is welded on the side wall of the second fixing pipe, a groove is formed in the inner side wall of the second fixing pipe, a sealing ring is arranged in the groove, the inner side wall of the bottom of the second fixing pipe is inwards convex to form a limiting step, and the other end of the reaction pipe is located on the limiting step.
The further technical scheme is that the shell and the first fixed pipe are directly provided with a first circulating water cooling sleeve, the first circulating water cooling sleeve is composed of an inner pipe and an outer pipe which are coaxially arranged, a cooling water containing cavity is formed between the inner pipe and the outer pipe, the side wall of the outer pipe is respectively provided with a water inlet pipe and a water outlet pipe, the water inlet pipe and the water outlet pipe are respectively connected with a water outlet and a water inlet of the circulating water cooling machine, and the top of the reaction pipe penetrates through the first circulating water cooling sleeve and then is inserted into the first fixed pipe.
A second circulating water-cooling sleeve is arranged between the shell and the second fixing pipe, the second circulating water-cooling sleeve is composed of an inner pipe and an outer pipe which are coaxially arranged, a cooling water containing cavity is formed between the inner pipe and the outer pipe, a water inlet pipe and a water outlet pipe are respectively arranged on the side wall of the outer pipe, the water inlet pipe and the water outlet pipe are respectively connected with a water outlet and a water inlet of the circulating water cooler, the bottom end of the reaction pipe penetrates through the second circulating water-cooling sleeve and then is inserted into the second fixing pipe, and the end part of the reaction pipe is pressed on the fixing step.
The working principle is as follows: when the device is used, preheated reaction gas is fed into the reaction tube from the gas inlet tube according to a proper proportion, the microwave generating device is started to heat the reaction gas in the reaction tube, and a synthesized product enters the collecting device through the gas outlet tube at the bottom.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the microwave is adopted to heat quickly and uniformly, so that the catalytic synthesis of the gas is accelerated, and the gas synthesis efficiency is improved.
2. The heating rate is further improved by the wave-absorbing material through arranging the partition board in the reaction tube and placing the wave-absorbing carrier absorbed with the catalyst.
3. Through set up the sealing washer in fixed intraductal, realize the sealed assembly between reaction tube and the fixed pipe, improve the gas tightness of reaction tube. Through dismantling fixed pipe, can quick replacement reaction tube, be convenient for overhaul and maintain.
4. Through the setting of circulation water-cooling sleeve pipe, cool down the reaction tube part, avoid reaction zone high temperature to make the sealing washer damage, prolong the life of sealing washer, further improve the gas tightness of device.
5. In order to make the temperature field in the reaction tube more uniform, the microwave generating devices are uniformly distributed along the length direction of the shell; in order to enable the temperature measurement to be more accurate, a K-type thermocouple is arranged at the bottom of the reaction tube, two infrared temperature measuring devices are distributed on the shell, and the temperature in the reaction tube is strictly monitored through multipoint temperature measurement.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a cross-sectional view taken along line C-C of fig. 1.
Fig. 3 is an enlarged view of a portion a in fig. 2.
Fig. 4 is an enlarged view of a portion B in fig. 2.
In the figure: 1-reaction tube, 2-insulating layer, 3-shell, 4-microwave generating device, 5-mounting support, 6-partition plate, 7-first fixing tube, 8-air inlet tube, 9-second fixing tube, 10-air outlet tube, 11-K type thermocouple, 12-sealing ring, 13-limiting step, 14-first circulating water cooling sleeve, 15-second circulating water cooling sleeve, 16-infrared temperature measuring device and 17-wave absorbing carrier with catalyst adsorbed.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the following description of the present invention will be made in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Fig. 1 and 2 show a microwave shaft furnace for catalytic synthesis, which comprises a reaction tube 1, a heat-insulating layer 2 and a shell 3 which are coaxially arranged, wherein the reaction tube 1 is made of a quartz glass tube, the heat-insulating layer 2 is made of a polycrystalline mullite material, the shell 3 can be made of a stainless steel material, and two infrared temperature measuring devices 16 are distributed on the shell 3 along the length direction of the shell. The outer side wall of the shell 3 is provided with a microwave generating device 4. The microwave generating devices 4 are provided with five microwave generating devices in total and are divided into two groups, wherein the three microwave generating devices are uniformly distributed on one group along the length direction of the shell 3, the outer side wall of the shell 3 is provided with a mounting bracket 5, the mounting bracket 5 and the microwave generating devices 4 are arranged oppositely, and the mounting bracket 5 is convenient for assembling the shell 3. And two microwave generating devices of the other group are arranged opposite to the infrared temperature measuring device 16. The principle of temperature regulation and control is that the control system regulates parameters such as power of the microwave generating devices 4 in time according to the temperature measured by the infrared temperature measuring devices 16, regulates and controls the power of the microwave generating device 4 which is positioned above the infrared temperature measuring device 16 and is positioned at the relative position and is closest to the lower part of the infrared temperature measuring device 16, and regulates and controls the power of the microwave generating device 4 which is positioned below the infrared temperature measuring device 16 and is positioned at the relative position according to the lower position of the infrared temperature measuring device 16. A partition plate 6 is arranged in the reaction tube 1, a wave-absorbing carrier 17 with a catalyst is arranged above the partition plate 6, and the wave-absorbing carrier 17 with the catalyst is obtained by granulating and pelletizing silicon carbide powder and catalyst powder.
As shown in fig. 3, the top of the housing 3 is connected with a first circulating water cooling sleeve 14 through a flange in a sealing manner, the first circulating water cooling sleeve 14 is composed of an inner pipe and an outer pipe which are coaxially arranged, a cooling water accommodating cavity is formed between the inner pipe and the outer pipe, a water inlet pipe and a water outlet pipe are respectively arranged on the side wall of the outer pipe, the water inlet pipe and the water outlet pipe are respectively connected with a water outlet and a water inlet of a circulating water cooling machine, and a first fixing pipe 7 is arranged at the top of the first circulating water cooling sleeve 14. Connecting flanges are arranged at two ends of the first fixed pipe 7, an air inlet pipe 8 is welded at the top of the first fixed pipe 7, a groove is formed in the inner side wall of the first fixed pipe 7, and a sealing ring 12 is arranged in the groove. One end of the reaction tube 1 passes through the first circulating water-cooling sleeve 14 and then is hermetically inserted in the first fixing tube 7, and the sealing ring 12 is made of graphite material or high-temperature-resistant fluororubber.
As shown in fig. 4, the bottom of the housing 1 is connected with a second circulating water-cooling sleeve 15 through a flange seal, the second circulating water-cooling sleeve 15 is composed of an inner pipe and an outer pipe which are coaxially arranged, a cooling water containing cavity is formed between the inner pipe and the outer pipe, a water inlet pipe and a water outlet pipe are respectively arranged on the side wall of the outer pipe, the water inlet pipe and the water outlet pipe are respectively connected with a water outlet and a water inlet of the circulating water cooling machine, the bottom of the second circulating water-cooling sleeve 15 is connected with a second fixing pipe 9 through a flange, connecting flanges are arranged at two ends of the second fixing pipe 9, an air outlet pipe 10 is welded on the side wall of the second fixing pipe 9, a groove is arranged on the inner side wall of the second fixing pipe 9, a sealing ring 12 is arranged in the groove, the inner side wall at the bottom of the second fixing pipe 9 protrudes inwards to form a limiting step 13, and the other end of the reaction pipe 1 is inserted into the second fixing pipe 9 after passing through the second circulating water-cooling sleeve 15 and the end portion of the reaction pipe is pressed against the fixing step 13.
Such setting is convenient for the change of reaction tube 1, when needing to change reaction tube 1 that the pipe diameter is littleer, will first fixed pipe 7 pull down, can take out reaction tube 1, change the first circulating water cooling sleeve pipe 14, second circulating water cooling sleeve pipe 15, the fixed pipe 9 of second that correspond the pipe diameter size again after, with the reaction tube 1 dress back of little pipe diameter, again with the first fixed pipe 7 dress that corresponds the pipe diameter can. For the convenience device, each circulating water-cooling sleeve and each fixed pipe are sealed and fixed by a flange and a sealing ring. The air inlet pipe 8 and the K-type thermocouple 11 are fixed by flanges and extend into the reaction pipe 1. When the quartz glass tube is aged and the new reaction tube 1 needs to be replaced, the first fixed tube 7 and the air inlet tube 8 are detached, so that the reaction tube 1 can be replaced, and the replacement mode is simple and quick.
Although the invention has been described herein with reference to a number of illustrative embodiments thereof, it should be understood that numerous other modifications and embodiments can be devised by those skilled in the art that will fall within the spirit and scope of the principles of this invention. More particularly, various variations and modifications are possible in the component parts or arrangements within the scope of the disclosure, the drawings and the appended claims. In addition to variations and modifications in the component parts or arrangements, other uses will also be apparent to those skilled in the art.
Claims (7)
1. A microwave shaft furnace for catalytic synthesis is characterized in that: including reaction tube (1) of coaxial setting, heat preservation (2), casing (3), be provided with microwave generating device (4) on casing (3) lateral wall, be provided with installing support (5) on casing (3) lateral wall, casing (3) top sealing connection has first fixed pipe (7), first fixed pipe (7) top sealing is provided with intake pipe (8), casing (3) bottom sealing connection has the fixed pipe of second (9), be provided with outlet duct (10) on the fixed pipe of second (9) lateral wall, the fixed pipe of second (9) bottom is pegged graft and is had K type thermocouple (11), reaction tube (1) one end is sealed to be pegged graft in first fixed pipe (7), reaction tube (1) other end is sealed to be pegged graft in the fixed pipe of second (9).
2. A microwave shaft oven for catalytic synthesis as claimed in claim 1, wherein: two infrared temperature measuring devices (16) are distributed on the outer side wall of the shell (3) along the length direction; the microwave generating devices (4) are arranged in two groups along the length direction of the shell (3), wherein one group is two and is arranged opposite to the infrared temperature measuring device (16), and the other group is three and is uniformly distributed along the length direction of the shell (3).
3. A microwave shaft oven for catalytic synthesis as claimed in claim 1, wherein: a partition plate (6) is arranged in the reaction tube (1), and a wave-absorbing carrier (17) adsorbed with a catalyst is placed above the partition plate (6).
4. A microwave shaft oven for catalytic synthesis as claimed in claim 1, wherein: the sealing device is characterized in that connecting flanges are arranged at two ends of the first fixed pipe (7), an air inlet pipe (8) is welded at the top of the first fixed pipe (7), a groove is formed in the inner side wall of the first fixed pipe (7), and a sealing ring (12) is arranged in the groove.
5. A microwave shaft oven for catalytic synthesis as claimed in claim 1, wherein: connecting flanges are arranged at two ends of the second fixing pipe (9), an air outlet pipe (10) is welded on the side wall of the second fixing pipe (9), a groove is formed in the inner side wall of the second fixing pipe (9), a sealing ring (12) is arranged in the groove, the inner side wall of the bottom of the second fixing pipe (9) is inwards convex to form a limiting step (13), and the other end of the reaction pipe (1) is located on the limiting step (13).
6. A microwave shaft oven for catalytic synthesis according to claim 4, wherein: casing (3) and first fixed pipe (7) directly are provided with first circulation water-cooling sleeve pipe (14), and first circulation water-cooling sleeve pipe (14) comprises inner tube and the outer tube of coaxial setting, forms the cooling water between inner tube and the outer tube and holds the chamber, is provided with inlet tube and outlet pipe on the outer tube lateral wall respectively, and inlet tube and outlet pipe are connected with the delivery port and the water inlet of circulative cooling water machine respectively, and grafting is in first fixed pipe (7) after first circulation water-cooling sleeve pipe (14) is passed at reaction tube (1) top.
7. A microwave shaft oven for catalytic synthesis according to claim 5, wherein: be provided with second circulation water-cooling sleeve pipe (15) between casing (3) and the fixed pipe of second (9), second circulation water-cooling sleeve pipe (15) comprise inner tube and the outer tube of coaxial setting, it holds the chamber to form the cooling water between inner tube and the outer tube, be provided with inlet tube and outlet pipe on the outer tube lateral wall respectively, inlet tube and outlet pipe are connected with recirculated water cooling water machine's delivery port and water inlet respectively, peg graft in the fixed pipe of second (9) and tip top pressure is on spacing step (13) after reaction tube (1) bottom passes second circulation water-cooling sleeve pipe (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121031518.3U CN214863465U (en) | 2021-05-14 | 2021-05-14 | Microwave vertical furnace for catalytic synthesis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121031518.3U CN214863465U (en) | 2021-05-14 | 2021-05-14 | Microwave vertical furnace for catalytic synthesis |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214863465U true CN214863465U (en) | 2021-11-26 |
Family
ID=78945150
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121031518.3U Active CN214863465U (en) | 2021-05-14 | 2021-05-14 | Microwave vertical furnace for catalytic synthesis |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214863465U (en) |
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2021
- 2021-05-14 CN CN202121031518.3U patent/CN214863465U/en active Active
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| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information |
Inventor after: Xu Lei Inventor after: Guo Lirong Inventor after: Zhang Libo Inventor after: Liu Jianhua Inventor after: Xia Hongying Inventor after: Liu Xiangxian Inventor after: Li Xinpei Inventor before: Xu Lei Inventor before: Guo Lirong Inventor before: Shen Zhigang Inventor before: Zhang Libo Inventor before: Liu Jianhua Inventor before: Xia Hongying Inventor before: Liu Xiangxian Inventor before: Li Xinpei |
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| CB03 | Change of inventor or designer information |