CN116477641A - Production equipment for ammonia synthesis process - Google Patents
Production equipment for ammonia synthesis process Download PDFInfo
- Publication number
- CN116477641A CN116477641A CN202310175399.6A CN202310175399A CN116477641A CN 116477641 A CN116477641 A CN 116477641A CN 202310175399 A CN202310175399 A CN 202310175399A CN 116477641 A CN116477641 A CN 116477641A
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- China
- Prior art keywords
- flange
- communicated
- sleeve
- pressure reducing
- spiral cooling
- Prior art date
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- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 title claims abstract description 38
- 238000000034 method Methods 0.000 title claims abstract description 26
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 22
- 229910021529 ammonia Inorganic materials 0.000 title claims abstract description 19
- 230000015572 biosynthetic process Effects 0.000 title claims abstract description 16
- 238000003786 synthesis reaction Methods 0.000 title claims abstract description 16
- 238000001816 cooling Methods 0.000 claims abstract description 75
- 238000002485 combustion reaction Methods 0.000 claims abstract description 42
- 239000011449 brick Substances 0.000 claims abstract description 32
- 239000000463 material Substances 0.000 claims description 29
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 28
- 238000009434 installation Methods 0.000 claims description 16
- 238000009825 accumulation Methods 0.000 claims description 12
- 238000002156 mixing Methods 0.000 claims description 9
- 238000005192 partition Methods 0.000 claims description 7
- 238000007789 sealing Methods 0.000 claims description 5
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract description 36
- 239000001301 oxygen Substances 0.000 abstract description 36
- 229910052760 oxygen Inorganic materials 0.000 abstract description 36
- 238000003466 welding Methods 0.000 description 27
- 239000000446 fuel Substances 0.000 description 25
- 238000005553 drilling Methods 0.000 description 22
- 239000007789 gas Substances 0.000 description 17
- 238000010586 diagram Methods 0.000 description 8
- 238000006243 chemical reaction Methods 0.000 description 7
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 6
- 239000001257 hydrogen Substances 0.000 description 6
- 229910052739 hydrogen Inorganic materials 0.000 description 6
- 239000000203 mixture Substances 0.000 description 6
- 150000002431 hydrogen Chemical class 0.000 description 5
- 238000002309 gasification Methods 0.000 description 4
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 3
- 239000001569 carbon dioxide Substances 0.000 description 3
- 229910002092 carbon dioxide Inorganic materials 0.000 description 3
- 229910002091 carbon monoxide Inorganic materials 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 2
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 2
- 238000005266 casting Methods 0.000 description 2
- 230000006837 decompression Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- -1 cooling equipment Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 150000004763 sulfides Chemical class 0.000 description 1
- 230000000153 supplemental effect Effects 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01C—AMMONIA; CYANOGEN; COMPOUNDS THEREOF
- C01C1/00—Ammonia; Compounds thereof
- C01C1/02—Preparation, purification or separation of ammonia
- C01C1/04—Preparation of ammonia by synthesis in the gas phase
- C01C1/0405—Preparation of ammonia by synthesis in the gas phase from N2 and H2 in presence of a catalyst
- C01C1/0417—Preparation of ammonia by synthesis in the gas phase from N2 and H2 in presence of a catalyst characterised by the synthesis reactor, e.g. arrangement of catalyst beds and heat exchangers in the reactor
Abstract
The invention relates to the technical field of synthetic ammonia, and discloses production equipment for an ammonia synthesis process. The low-temperature oxygen can enter the outer spiral cooling pipe at first, and the outer spiral cooling pipe is arranged at the position, close to the outer side, of the inner cavity of the refractory brick, so that the high temperature of the inner wall of the refractory brick can be absorbed, the high temperature born by the wall of the refractory brick is reduced, the manufacturing cost of the refractory brick is reduced, the temperature of the combustion chamber is reduced, the problem that the combustion chamber is burnt due to overhigh temperature is avoided, the problem that the device cannot normally run is caused, and the stability of the device is improved.
Description
Technical Field
The application relates to the technical field of ammonia synthesis, in particular to production equipment for an ammonia synthesis process.
Background
The synthesis of ammonia is a very important achievement, ammonia is produced by means of artificial nitrogen fixation, and the method plays a positive promotion role in industries such as agriculture, medical treatment, pharmacy and chemical industry, wherein in a plurality of steps of the synthesis of ammonia, the hydrogen production is the most critical, the quality of the produced hydrogen directly influences the quality of the final ammonia, and in the prior art, the method of overburning carbon-containing fuel is often adopted to produce mixed gas containing hydrogen, commonly called water gas.
In the process, the gasification furnace is used, the conventional gasification furnace burner, refractory bricks, cooling equipment, air supply equipment, feeding equipment, a water bath tank and other important components are formed, in the use process, the air supply equipment provides air containing high-concentration oxygen or pure oxygen, the feeding equipment provides fuel, the air or the pure oxygen is fully mixed with the fuel and is ignited in the burner, a higher temperature is generated in the furnace, the fuel is burnt at the high temperature, and thus, the mixture of carbon monoxide, hydrogen, carbon dioxide, sulfide and residues is generated, and the gasification furnace of the type has the advantages of being the most wide in application range at present, simple in structure, convenient to use, low in cost and the like.
Although the existing gasification furnace has the advantages, certain limitations still exist in the actual use process, as the reaction keeps the inside of the furnace at a higher temperature, the requirement on refractory bricks is very high, materials capable of bearing high temperature and high pressure and also bearing great changes of temperature need to be adopted, the manufacturing cost of the refractory bricks is very high, meanwhile, the high temperature also causes the damage of the burner, and the service life is reduced.
Disclosure of Invention
The application adopts the following technical scheme: production equipment for ammonia synthesis process comprises refractory bricks: the utility model discloses a high-pressure gas-fired furnace, including the installation hole, the installation hole has been seted up through drilling machine drilling mode on the position that is located the center at the resistant firebrick top, the installation hole has been installed at the top through pole hole complex mode fixed mounting, circular through-hole has been seted up through drilling machine drilling mode on the position that is close to the outer lane at the installation hole top, and the inside cover of this circular through-hole is equipped with fixing bolt, fixing bolt cup joints through the screw thread with resistant firebrick's top, the top of installation hole has a material sucking device through whole cast mode fixed mounting, the bottom of installation hole has a burner through whole cast mode fixed mounting, resistant firebrick inner chamber top is located the position outside the installation hole and has a cooling device through welded mode fixed mounting, resistant firebrick inner chamber inner wall is located the position in the centre and has a gas-guide device through welded mode fixed mounting, resistant firebrick top is located the position outside the installation hole and is linked together with one end of cooling device through welded mode fixed mounting, resistant firebrick top is located the mounting hole outside and is close to the connecting flange through welded mode fixed mounting, resistant firebrick top is linked together with cooling device through the connecting pipe through the pressure reducing pipeline.
Further, the material absorbing device comprises an inner sleeve, the inner sleeve is fixedly arranged at the top of the mounting seat in a welding mode, the inner sleeve penetrates through the mounting seat to extend to the bottom of the mounting seat and is communicated with the combustion device, a material absorbing hole is formed in the middle of the outer sleeve at a lower position through a drilling machine, the number of the material absorbing holes is two, a feeding sleeve is fixedly arranged at the position, close to the top, of the outer sleeve, the bottom of the feeding sleeve is connected with the top of the mounting seat in a welding mode, a feeding flange is fixedly arranged at the position, close to the top, of the outer sleeve in a welding mode, the feeding flange is communicated with an inner cavity of the feeding sleeve, an outer sleeve is fixedly arranged at the position, close to the middle, of the outer sleeve in a welding mode, the bottom of the outer sleeve is connected with the top of the mounting seat in a welding mode, the outer sleeve penetrates through the bottom of the mounting seat and is communicated with the combustion device, and an air guide flange is fixedly arranged at the outer sleeve outer surface in a welding mode and is communicated with the inner cavity of the outer sleeve.
Further, burner includes the combustion chamber, and the combustion chamber passes through welded mode fixed mounting in the bottom of mount pad, the mixing chamber has been seted up through drilling machine drilling mode in the position that the combustion chamber bottom is located the center, and mixing chamber is linked together with interior sleeve pipe, the air guide chamber has been seted up through drilling machine drilling mode in the position that the combustion chamber bottom is located the combustion chamber outside, and the air guide chamber is linked together with the outer tube, the bottom of air guide chamber has the seal holder through welded mode fixed mounting, the bottom of seal holder has the nozzle through welded mode fixed mounting, and the quantity of nozzle is six and distributes with annular array's mode, and the nozzle is linked together with the inner chamber of air guide chamber, nozzle bottom opening part towards inboard.
Further, the cooling device comprises an outer spiral cooling pipe and an inner spiral cooling pipe, wherein the outer spiral cooling pipe is arranged on the outer side of the inner cavity of the refractory brick, one end of the outer spiral cooling pipe is fixedly arranged on the top of the inner cavity of the refractory brick in a welding mode and is communicated with a connecting flange, the inner spiral cooling pipe is arranged on the inner side of the inner cavity of the refractory brick, the inner spiral cooling pipe is in contact with the outer surface of the combustion chamber, one end of the inner spiral cooling pipe is communicated with the connecting pipe, and the outer spiral cooling pipe and the inner spiral cooling pipe are connected through a communicating pipe.
Further, the pipe diameter of the inner spiral cooling pipe gradually increases from bottom to top.
Further, the air guide device comprises connecting plates, the connecting plates are fixedly arranged at the positions, close to the middle, of the inner walls of the refractory bricks in a welding mode, the number of the connecting plates is three and distributed in a ring-shaped array mode, one end of each connecting plate is fixedly provided with a water accumulation disc in a welding mode, the section appearance of each water accumulation disc is funnel-shaped, and each water accumulation disc is located under the cooling device.
Further, pressure reducing device includes the pressure reducing chamber, the bottom of pressure reducing chamber is linked together with the one end of interior spiral cooling tube, the top of pressure reducing chamber is linked together with the release flange I through welded mode, release flange I is linked together with the inner chamber of pressure reducing chamber, the one end of release flange I is linked together with the air guide flange through the pipeline, the release flange II is linked together through welded mode fixed mounting in the position that the pressure reducing chamber is close to the bottom on the outer surface of pressure reducing chamber, the one end of release flange II is linked together through pipeline and interior sheathed tube top, the pressure reducing chamber inner wall is located the top of release flange II and is equipped with the end piece through welded mode fixed mounting, the top of pressure reducing chamber is located the top movable mounting of end piece, the top of pressure reducing chamber is located the position of release flange I and is equipped with adjusting screw through screw in the mode cover of screw-thread fit, the position that the baffle top is close to the outside is equipped with spacing connecting seat through shaft hole complex mode movable mounting through the drilling machine mode of adjusting screw's bottom, the top is offered through the through-hole mode of flow.
The application has the following beneficial effects.
1. Oxygen supply equipment can let in low temperature high concentration oxygen to flange's inside, the one end through outer spiral cooling tube passes through welded mode and the top fixed mounting of resistant firebrick inner chamber and is linked together with the connection flange this moment, make low temperature oxygen can enter into the inside of outer spiral cooling tube at first, because outer spiral cooling tube sets up on the position that resistant firebrick inner chamber is close to the outside, can absorb the high temperature of resistant firebrick inner wall, thereby reduce the high temperature that resistant firebrick pipe wall bore, thereby reduce the manufacturing cost of resistant firebrick, simultaneously, low temperature oxygen can enter into the inside of interior spiral cooling tube through connecting tube after outer spiral cooling tube, because interior spiral cooling tube contacts with the surface of combustion chamber, thereby absorb the heat that produces the combustion chamber, reduce the temperature of combustion chamber, avoid the problem that the combustion chamber temperature is too high and appear, cause the unable normal operating problem of device, the stability of the device has been improved.
2. The pipe diameter of the inner spiral cooling pipe gradually increases from bottom to top, so that the volume of oxygen can be increased in the process of flowing from bottom to top along the inner spiral cooling pipe, the problem that the inner wall of the inner spiral cooling pipe is broken and leaked due to too high stress caused by the fact that the oxygen in the inner spiral cooling pipe is heated and expanded due to too high temperature of the outer surface of the combustion device is avoided, and the stability of the device in the running process is improved.
3. The inside that can enter into pressure reducing device through the connecting pipe, oxygen can be shunted at the inner chamber of depressurization room and follow the interior of gas release flange I and gas release flange II flow, the oxygen that flows from gas release flange II enters into the inside of interior sleeve pipe through the pipeline, and high-speed through interior sleeve pipe, in the process feed equipment can let in the fuel to the inside of feed sleeve pipe, because the oxygen that flows at a high speed produces negative pressure, through the impact of inhaling the inside fuel suction of feed sleeve pipe, make fuel and oxygen can fully mix and be lighted, simultaneously, the oxygen that flows from gas release flange I enters into the inside of outer tube through connecting pipe and gas guide flange, thereby pass the mount pad and enter into the inside of gas guide chamber, and spout from the opening part of nozzle, make can be to its supplemental oxygen all the time in the in-process of fuel burning, make the fuel can be in the condition of peroxidized burning, thereby produce the crude water gas that contains carbon monoxide, hydrogen, carbon dioxide, sulphide and residue, and nozzle bottom opening part is towards inside, make the air current can guarantee that the flame that the mixing chamber sprays can keep the inside of the annular air current that the nozzle produces, thereby the heat of the inside of the refractory brick is born to the inside of the device, further reduced in manufacturing cost is born to the device.
4. The heated oxygen is mixed with the fuel to ensure that the mixture is at a higher temperature, so that the mixture is easier to ignite, the combustion is sufficient, the generated heat value is higher, the reaction temperature can be maintained at the higher temperature, the water gas content in the generated gas is higher, and the production efficiency of the device is improved.
5. The length of the adjusting screw inserted into the depressurization chamber can be adjusted by rotating the adjusting screw, so that the relative height of the separation plate is adjusted, when fuel supply is needed to be improved, the volume of the cavity below the separation plate is reduced by screwing the adjusting screw, heated oxygen enters the cavity through the connecting pipe and expands, the pressure of the cavity inside the cavity is increased, more oxygen enters the inner sleeve through the air leakage flange II and the connecting pipe at a higher flow rate, stronger negative pressure is generated, more fuel is sucked, when the fuel supply is needed to be reduced, the air pressure generated by reversely adjusting the adjusting screw, the pressure of the air below the separation plate is reduced, less oxygen enters the air leakage flange II at a lower speed, and the generated negative pressure is also reduced, so that the depressurization device can release the oxygen pressure and simultaneously realize the adjustment of the fuel supply, and the practicability and the operational convenience of the device are improved.
6. The water bath of residue can produce a large amount of vapor under the influence of receiving high temperature is collected to the below, this part vapor can follow vertical ascending direction and remove, because burner's burning sprays the effect, vapor can't pass through from the hole of ponding dish central point put, but pass through from the outer lane of ponding dish, the outer spiral cooling tube contact back stroke comdenstion water that lies in the temperature is lower and fall the top of air guide device, avoid the top of device to be full of vapor and influence the reaction and go on, the stability of the device reaction in-process has been guaranteed, simultaneously, the comdenstion water can cool down air guide device after falling, guarantee that air guide device can not appear the condition of melting down under the circumstances of high temperature again, the stability of the operation of the device has been improved.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the description, serve to explain the principles of the disclosure.
The disclosure may be more clearly understood from the following detailed description taken in conjunction with the accompanying drawings in which:
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic diagram of a front view of the structure of the present invention;
FIG. 3 is a schematic view of a cross-section in direction A of FIG. 2, which is a structural diagram of the present invention;
FIG. 4 is a schematic structural diagram of the main structure of the present invention;
FIG. 5 is a schematic front view of the main structure of the present invention;
FIG. 6 is a schematic view of a cross-section in the direction B of FIG. 5, which is a block diagram of the present invention;
FIG. 7 is a schematic view of a cross section in the direction C of FIG. 6, which is a structural diagram of the present invention;
FIG. 8 is a schematic view of a cooling device according to the present invention;
FIG. 9 is a schematic bottom view of a cooling device according to the present invention;
FIG. 10 is a schematic view of a cross-section in the direction D of FIG. 9, which is a block diagram of the present invention;
FIG. 11 is a schematic view of an air guide device with the structure of the present invention;
FIG. 12 is a schematic top view of an air guide device according to the present invention;
FIG. 13 is a schematic view of a cross section in the E direction of FIG. 12 of the structure of the present invention;
FIG. 14 is a schematic view of a structural pressure reducing device of the present invention;
FIG. 15 is a schematic front view of a pressure reducing device of the present invention;
FIG. 16 is a schematic view of a cross-section in the F direction of FIG. 15 of a block diagram of the present invention;
FIG. 17 is a schematic view of a section in the G direction of FIG. 16 showing the structure of the present invention.
In the figure: 1. refractory bricks; 2. a mounting hole; 3. a mounting base; 4. a fixing bolt; 5. a material sucking device; 51. an inner sleeve; 52. a suction hole; 53. a feed sleeve; 54. a feed flange; 55. an outer sleeve; 56. an air guide flange; 6. a combustion device; 61. a combustion chamber; 62. a mixing chamber; 63. an air guide cavity; 64. a sealing seat; 65. a nozzle; 7. a cooling device; 71. an outer spiral cooling tube; 72. an inner spiral cooling tube; 8. an air guide device; 81. a connecting plate; 82. a water accumulation plate; 9. a connecting flange; 10. a connecting pipe; 11. a pressure reducing device; 111. a depressurization chamber; 112. a gas leakage flange I; 113. a gas leakage flange II; 114. a stop piece; 115. a partition plate; 116. adjusting a screw; 117. limiting connecting seats; 118. and a flow hole.
Detailed Description
The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all, of the embodiments of the present application. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments herein without making any inventive effort, are intended to be within the scope of the present application.
Example 1
Production equipment for ammonia synthesis process comprises refractory bricks 1: the installation hole 2 has been seted up through drilling machine drilling mode on the position that is located the center at resistant firebrick 1 top, installation hole 2's top has been through pole hole complex mode fixed mounting there is mount pad 3, circular through-hole has been seted up through drilling machine drilling mode on the position that is close to the outer lane at mount pad 3 top, the inside cover of this circular through-hole is equipped with fixing bolt 4, fixing bolt 4 cup joints through the screw thread with resistant firebrick 1's top, material sucking device 5 has been passed through to the fixed mounting of top through whole casting mode at mount pad 3, combustion apparatus 6 has been passed through whole casting mode fixed mounting at the bottom of mount pad 3, resistant firebrick 1 inner chamber top is located the position that is located the mounting hole 2 outside through welded mode fixed mounting there is cooling device 7, resistant firebrick 1 inner chamber inner wall is located the intermediate position and has air guide device 8 through welded mode fixed mounting, resistant firebrick 1 top is located the position that is located the mounting of the mounting hole 2 outside through welded mode fixed mounting there is flange 9, flange 9 runs through resistant firebrick 1 and is linked together with cooling device 7's one end, the top and oxygen supply equipment is linked together, resistant firebrick 1 top is located the mounting 2 outside and is close to connecting flange 9's position through connecting pipe mode fixed mounting 10, material sucking device 11 is linked together through connecting device 11 with the other end through 11 through means 11.
The material sucking device 5 comprises an inner sleeve 51, the inner sleeve 51 is fixedly arranged at the top of a mounting seat 3 in a welding mode, the inner sleeve 51 penetrates through the mounting seat 3 to extend to the bottom of the mounting seat 3 and is communicated with a combustion device 6, a material sucking hole 52 is formed in a position, close to the middle, of the outer surface of the inner sleeve 51 in a drilling mode through a drilling machine, the number of the material sucking holes 52 is two, a material supplying sleeve 53 is fixedly arranged in a position, close to the top, of the outer surface of the inner sleeve 51 in a welding mode, the bottom of the material supplying sleeve 53 is connected with the top of the mounting seat 3 in a welding mode, a material supplying flange 54 is fixedly arranged in a position, close to the top, of the outer surface of the material supplying sleeve 53 in a welding mode, a material supplying flange 54 is communicated with an inner cavity of the material supplying sleeve 53, one end of the material supplying flange 54 is connected with a material supplying device, an outer sleeve 55 is fixedly arranged in a position, close to the middle, of the outer sleeve 55 penetrates through the bottom of the mounting seat 3 in a welding mode, extends to the bottom of the mounting seat 3 in a welding mode, is communicated with the combustion device 6, an outer sleeve 55 is fixedly arranged in a gas guiding flange 56, and the outer sleeve 55 is communicated with the inner cavity of the outer sleeve 55 in a welding mode.
The combustion device 6 comprises a combustion chamber 61, the combustion chamber 61 is fixedly arranged at the bottom of the mounting seat 3 in a welding mode, a mixing cavity 62 is formed in the position of the bottom of the combustion chamber 61 at the center in a drilling mode through a drilling machine, the mixing cavity 62 is communicated with the inner sleeve 51, an air guide cavity 63 is formed in the position of the bottom of the combustion chamber 61 at the outer side of the combustion chamber 61 in a drilling mode through the drilling machine, the air guide cavity 63 is communicated with the outer sleeve 55, a sealing seat 64 is fixedly arranged at the bottom of the air guide cavity 63 in a welding mode, nozzles 65 are fixedly arranged at the bottom of the sealing seat 64 in a welding mode, the number of the nozzles 65 is six and distributed in a circular array mode, the nozzles 65 are communicated with the inner cavity of the air guide cavity 63, and the opening of the bottom of the nozzles 65 faces to the inner side.
The cooling device 7 comprises an outer spiral cooling pipe 71 and an inner spiral cooling pipe 72, wherein the outer spiral cooling pipe 71 is arranged on the outer side of the inner cavity of the refractory brick 1, one end of the outer spiral cooling pipe 71 is fixedly arranged on the top of the inner cavity of the refractory brick 1 in a welding mode and is communicated with the connecting flange 9, low-temperature oxygen can enter the inner part of the outer spiral cooling pipe 71 first, the inner spiral cooling pipe 72 is arranged on the inner side of the inner cavity of the refractory brick 1, the inner spiral cooling pipe 72 is in contact with the outer surface of the combustion chamber 61, one end of the inner spiral cooling pipe 72 is communicated with the connecting pipe 10, and the outer spiral cooling pipe 71 and the inner spiral cooling pipe 72 are connected through the communicating pipe.
Referring to fig. 1-10, the oxygen supply device will introduce low-temperature high-concentration oxygen into the connecting flange 9, at this time, one end of the outer spiral cooling tube 71 is fixedly installed on top of the inner cavity of the refractory brick 1 and is connected with the connecting flange 9 in a welding manner, because the outer spiral cooling tube 71 is disposed at a position close to the outer side of the inner cavity of the refractory brick 1, the high temperature of the inner wall of the refractory brick 1 can be absorbed, thereby reducing the high temperature born by the wall of the refractory brick 1, and reducing the manufacturing cost of the refractory brick 1.
Example two
The diameter of the inner spiral cooling tube 72 gradually increases from bottom to top.
On the basis of the first embodiment, referring to fig. 8-10, the pipe diameter of the inner spiral cooling pipe 72 is gradually increased from bottom to top, so that the volume of oxygen can be increased in the process of flowing along the inner spiral cooling pipe 72 from bottom to top, thereby avoiding the problem that the oxygen in the inner spiral cooling pipe 72 is heated and expanded to cause too high stress on the inner wall of the inner spiral cooling pipe 72 to cause cracking leakage due to too high temperature of the outer surface of the combustion device 6, and improving the stability of the device in the operation process.
Example III
The air guide device 8 comprises connecting plates 81, the connecting plates 81 are fixedly mounted at the positions, close to the middle, of the inner walls of the refractory bricks 1 in a welding mode, the number of the connecting plates 81 is three and distributed in an annular array mode, water accumulation plates 82 are fixedly mounted at one ends of the connecting plates 81 in a welding mode, the cross section of each water accumulation plate 82 is funnel-shaped, and each water accumulation plate 82 is located under the cooling device 7.
The pressure reducing device 11 comprises a pressure reducing chamber 111, the bottom of the pressure reducing chamber 111 is communicated with one end of an inner spiral cooling pipe 72, the top of the pressure reducing chamber 111 is communicated with a leakage flange I112 in a welding mode, the leakage flange I112 is communicated with the inner cavity of the pressure reducing chamber 111, one end of the leakage flange I112 is communicated with an air guide flange 56 through a pipeline, a leakage flange II 113 is fixedly arranged at the position, close to the bottom, of the outer surface of the pressure reducing chamber 111, of the pressure reducing chamber 111 in a welding mode, the leakage flange II 113 is communicated with the inner cavity of the pressure reducing chamber 111, one end of the leakage flange II 113 is communicated with the top of an inner sleeve 51 through a pipeline, a stop sheet 114 is fixedly arranged at the position, above the leakage flange II 113, of the inner wall of the pressure reducing chamber 111 in a welding mode, a partition plate 115 is movably arranged above the stop sheet 114, the top of decompression room 111 is located the position outside the bleeder flange I112 and is equipped with adjusting screw 116 through screw thread fit's mode cover, the spacing connecting seat 117 of welding mode fixed mounting is passed through on the position that division board 115 top is close to the outside, spacing connecting seat 117 and adjusting screw 116's bottom pass through shaft hole complex mode movable mounting, the circulation hole 118 has been seted up through drilling machine drilling mode at division board 115 top, can enter into the inside of pressure reduction device 11 through connecting pipe 10 through cooling device 7, oxygen can shunt and follow bleeder flange I112 and bleeder flange II 113 in the inner chamber of decompression room 111, the oxygen that flows from bleeder flange II 113 passes through the pipeline and enters into the inside of interior sleeve pipe 51, and high-speed through interior sleeve pipe 51, the inside of feed arrangement can let in the fuel to the feed sleeve 53 in the process.
On the basis of the second embodiment, referring to fig. 1-7 and 14-17, as negative pressure is generated by oxygen flowing at high speed, fuel inside the feed sleeve 53 is sucked out through the suction hole 52 to be impacted, so that the fuel and the oxygen can be fully mixed and ignited, meanwhile, oxygen flowing out of the air release flange i 112 enters into the outer sleeve 55 through the connecting pipeline and the air guide flange 56, passes through the mounting seat 3 to enter into the air guide cavity 63 and is sprayed out from the opening of the nozzle 65, so that oxygen can be always supplemented to the fuel in the combustion process of the fuel, the fuel can be in the condition of peroxidic combustion, and crude water gas containing carbon monoxide, hydrogen, carbon dioxide, sulfides and residues is generated, and the opening at the bottom of the nozzle 65 faces inwards, so that the flame sprayed by the mixing cavity 62 can be ensured to be maintained inside annular airflow generated by the nozzle 65, and part of heat is blocked from being transmitted to the inside of the refractory brick 1, thereby further reducing the temperature born by the refractory brick 1 and reducing the manufacturing cost of the device.
Example IV
On the basis of the third embodiment, referring to fig. 4-10, the heated oxygen is mixed with the fuel to make the mixture at a higher temperature, so that the mixture is more easily ignited, and the combustion is sufficient, so that the higher the generated heat value is, the higher the reaction temperature can be maintained at the higher temperature, and the higher the water gas content in the generated gas is, so that the production efficiency of the device is improved.
Example five
On the basis of the fourth embodiment, referring to fig. 1-7 and 14-17, the length of the adjusting screw 116 inserted into the depressurization chamber 111 can be adjusted by rotating the adjusting screw 116, so that the relative height of the partition plate 115 is adjusted, when the fuel supply needs to be improved, the volume of the cavity below the partition plate 115 is reduced by screwing in the adjusting screw 116, heated oxygen enters the cavity through the connecting pipe 10 and expands, the pressure of the cavity inside the cavity is increased, so that more oxygen enters the interior of the inner sleeve 51 through the air release flange ii 113 and the communicating pipe at a higher flow rate, thereby generating stronger negative pressure and sucking more fuel, when the fuel supply needs to be reduced, the air pressure generated by reversely adjusting the adjusting screw 116 and the cavity below the partition plate 115 is reduced, so that the negative pressure generated by the pressure of less oxygen enters the air release flange ii 113 at a lower speed, and the depressurization device 11 can release the oxygen pressure, thereby realizing the adjustment of the fuel supply, and improving the practicability and the operation convenience of the device.
Example six
On the basis of the fifth embodiment, referring to fig. 1-3 and fig. 8-13, the water bath box with the residue collected below can generate a large amount of water vapor under the influence of high temperature, and the water vapor can move along the vertical upward direction, so that due to the combustion and injection effect of the combustion device 6, the water vapor can not pass through the hole in the center of the water accumulation plate 82, but can pass through the outer ring of the water accumulation plate 82, and the lower-temperature outer spiral cooling pipe 71 contacts the rear-stroke condensed water and falls to the top of the air guide device 8, thereby avoiding the influence of the reaction caused by the fact that the upper part of the device is filled with water vapor, ensuring the stability of the reaction process of the device, and simultaneously reducing the temperature of the air guide device 8 after the condensed water falls, ensuring that the air guide device 8 is not destroyed under the condition of no higher temperature, and improving the running stability of the device.
Claims (7)
1. The production equipment for the ammonia synthesis process is characterized by comprising refractory bricks (1): the utility model discloses a fire brick, including firebrick (1), mounting hole (2) have been seted up on the position that firebrick (1) top is located the center, the top fixed mounting of mounting hole (2) has mount pad (3), circular through-hole has been seted up on the position that is close to the outer lane at mount pad (3) top, the inside cover of this circular through-hole is equipped with fixing bolt (4), fixing bolt (4) cup joint through the screw thread with the top of firebrick (1), the top fixed mounting of mount pad (3) has material sucking device (5), the bottom fixed mounting of mount pad (3) has burner unit (6), fixed mounting has cooling device (7) on the position that firebrick (1) inner chamber top is located the outside of mounting hole (2), fixed mounting has air guide device (8) on the position that firebrick (1) inner chamber inner wall is located the centre, fixed mounting has flange (9) on the position that firebrick (1) top is located the outside of mounting hole (2), flange (9) run through firebrick (1) and are linked together with cooling device's one end, firebrick (1) top is located the connecting pipe (10) and is linked together with cooling device (10), the top of the connecting pipe (10) is fixedly provided with a pressure reducing device (11), and the pressure reducing device (11) is connected with the material sucking device (5) through a pipeline.
2. The production equipment for the ammonia synthesis process according to claim 1, wherein the material sucking device (5) comprises an inner sleeve (51), the inner sleeve (51) is fixedly arranged at the top of the installation seat (3), the inner sleeve (51) penetrates through the installation seat (3) to extend to the bottom of the installation seat (3) and is communicated with the combustion device (6), material sucking holes (52) are formed in the middle lower position of the outer surface of the inner sleeve (51), the number of the material sucking holes (52) is two, a material feeding sleeve (53) is fixedly arranged at the position, close to the top, of the outer surface of the inner sleeve (51), the bottom of the material feeding sleeve (53) is connected with the top of the installation seat (3), a material feeding flange (54) is fixedly arranged at the position, close to the top, of the outer sleeve (53), a material feeding flange (54) is communicated with an inner cavity of the material feeding sleeve (53), an outer sleeve (55) is fixedly arranged at the position, close to the middle, of the outer sleeve (53), the bottom of the outer sleeve (55) is connected with the top of the installation seat (3), the outer sleeve (55) is fixedly arranged at the bottom of the outer sleeve (3) and is communicated with the outer sleeve (56), the air guide flange (56) is communicated with the inner cavity of the outer sleeve (55).
3. The production equipment for the ammonia synthesis process according to claim 2, wherein the combustion device (6) comprises a combustion chamber (61), the combustion chamber (61) is fixedly arranged at the bottom of the installation seat (3), a mixing cavity (62) is formed in the position, located at the center, of the bottom of the combustion chamber (61), the mixing cavity (62) is communicated with the inner sleeve (51), an air guide cavity (63) is formed in the position, located at the outer side of the combustion chamber (61), of the bottom of the combustion chamber (61), the air guide cavity (63) is communicated with the outer sleeve (55), a sealing seat (64) is fixedly arranged at the bottom of the air guide cavity (63), a nozzle (65) is fixedly arranged at the bottom of the sealing seat (64), the nozzle (65) is communicated with the inner cavity of the air guide cavity (63), and the opening of the bottom of the nozzle (65) faces inwards.
4. A production facility for an ammonia synthesis process according to claim 3, wherein the cooling device (7) comprises an outer spiral cooling tube (71) and an inner spiral cooling tube (72), the outer spiral cooling tube (71) is arranged on the outer side of the inner cavity of the refractory brick (1), one end of the outer spiral cooling tube (71) is fixedly arranged on the top of the inner cavity of the refractory brick (1) and is communicated with the connecting flange (9), the inner spiral cooling tube (72) is arranged on the inner side of the inner cavity of the refractory brick (1), the inner spiral cooling tube (72) is in contact with the outer surface of the combustion chamber (61), one end of the inner spiral cooling tube (72) is communicated with the connecting tube (10), and the outer spiral cooling tube (71) and the inner spiral cooling tube (72) are connected through the communicating tube.
5. The production equipment for an ammonia synthesis process according to claim 4, wherein the pipe diameter of the inner spiral cooling pipe (72) gradually increases from bottom to top.
6. The production equipment for the ammonia synthesis process according to claim 5, wherein the air guide device (8) comprises a connecting plate (81), the connecting plate (81) is fixedly installed on the position, close to the middle, of the inner wall of the refractory brick (1), a water accumulation disc (82) is fixedly installed at one end of the connecting plate (81), the cross section of the water accumulation disc (82) is funnel-shaped, and the water accumulation disc (82) is located under the cooling device (7).
7. The production equipment for an ammonia synthesis process according to claim 6, wherein the pressure reducing device (11) comprises a pressure reducing chamber (111), the bottom of the pressure reducing chamber (111) is communicated with one end of an internal spiral cooling pipe (72), the top of the pressure reducing chamber (111) is communicated with a pressure releasing flange I (112), the pressure releasing flange I (112) is communicated with the inner cavity of the pressure reducing chamber (111), one end of the pressure releasing flange I (112) is communicated with a gas guiding flange (56) through a pipeline, the pressure reducing chamber (111) is fixedly provided with a pressure releasing flange II (113) at a position, close to the bottom, of the outer surface of the pressure reducing chamber (111) is fixedly provided with a pressure releasing flange II (113), one end of the pressure releasing flange II (113) is communicated with the top of an inner sleeve (51) through a pipeline, a stop piece (114) is fixedly arranged at a position, which is positioned above the pressure releasing flange II (113), the inner wall of the pressure reducing chamber (111) is movably arranged above the stop piece (114), the pressure reducing chamber (111) is fixedly provided with a partition plate (115) at a position, which is positioned near to the top of the pressure reducing chamber (111), a position, which is fixedly provided with a screw (117) at the top of the pressure reducing chamber (111) is provided with a screw (117) and is fixedly provided with a screw (117), a flow hole (118) is formed in the top of the partition plate (115).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310175399.6A CN116477641B (en) | 2023-02-28 | 2023-02-28 | Production equipment for ammonia synthesis process |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310175399.6A CN116477641B (en) | 2023-02-28 | 2023-02-28 | Production equipment for ammonia synthesis process |
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| CN116477641A true CN116477641A (en) | 2023-07-25 |
| CN116477641B CN116477641B (en) | 2024-04-12 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4343626A (en) * | 1980-02-19 | 1982-08-10 | Brennstoffinstitut Freiberg | Reactor for producing a carbon monoxide and hydrogen containing gas |
| EP0328794A1 (en) * | 1988-02-17 | 1989-08-23 | Shell Internationale Researchmaatschappij B.V. | Partial combustion burner with spiral-flow cooled face |
| CN202390390U (en) * | 2011-12-23 | 2012-08-22 | 河南金土地煤气工程有限公司 | Coal-water-slurry high pressure gasification furnace |
| CN203560908U (en) * | 2013-05-17 | 2014-04-23 | 上海康恒环境股份有限公司 | Air-cooling refractory brick furnace wall device of garbage incinerator |
-
2023
- 2023-02-28 CN CN202310175399.6A patent/CN116477641B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4343626A (en) * | 1980-02-19 | 1982-08-10 | Brennstoffinstitut Freiberg | Reactor for producing a carbon monoxide and hydrogen containing gas |
| EP0328794A1 (en) * | 1988-02-17 | 1989-08-23 | Shell Internationale Researchmaatschappij B.V. | Partial combustion burner with spiral-flow cooled face |
| CN202390390U (en) * | 2011-12-23 | 2012-08-22 | 河南金土地煤气工程有限公司 | Coal-water-slurry high pressure gasification furnace |
| CN203560908U (en) * | 2013-05-17 | 2014-04-23 | 上海康恒环境股份有限公司 | Air-cooling refractory brick furnace wall device of garbage incinerator |
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| CN116477641B (en) | 2024-04-12 |
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