CN115532196B - Crude benzene hydrogenation production equipment - Google Patents
Crude benzene hydrogenation production equipment Download PDFInfo
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- CN115532196B CN115532196B CN202211473557.8A CN202211473557A CN115532196B CN 115532196 B CN115532196 B CN 115532196B CN 202211473557 A CN202211473557 A CN 202211473557A CN 115532196 B CN115532196 B CN 115532196B
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- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 title claims abstract description 66
- 238000005984 hydrogenation reaction Methods 0.000 title claims abstract description 58
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 19
- 239000007789 gas Substances 0.000 claims abstract description 63
- 239000001257 hydrogen Substances 0.000 claims abstract description 49
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 49
- 238000002347 injection Methods 0.000 claims abstract description 49
- 239000007924 injection Substances 0.000 claims abstract description 49
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims abstract description 45
- 238000010438 heat treatment Methods 0.000 claims abstract description 25
- 238000006243 chemical reaction Methods 0.000 claims abstract description 21
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 claims abstract description 19
- 239000003063 flame retardant Substances 0.000 claims abstract description 19
- 229910000990 Ni alloy Inorganic materials 0.000 claims abstract description 16
- DOARWPHSJVUWFT-UHFFFAOYSA-N lanthanum nickel Chemical compound [Ni].[La] DOARWPHSJVUWFT-UHFFFAOYSA-N 0.000 claims abstract description 16
- 238000005086 pumping Methods 0.000 claims abstract description 15
- 230000002265 prevention Effects 0.000 claims abstract description 5
- 238000007789 sealing Methods 0.000 claims description 9
- 230000002093 peripheral effect Effects 0.000 claims description 7
- 230000000903 blocking effect Effects 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 238000009434 installation Methods 0.000 claims 2
- 230000000694 effects Effects 0.000 abstract description 8
- 238000000034 method Methods 0.000 abstract description 7
- 230000002441 reversible effect Effects 0.000 abstract description 4
- 150000002431 hydrogen Chemical class 0.000 description 4
- 229910052987 metal hydride Inorganic materials 0.000 description 3
- 150000004681 metal hydrides Chemical class 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000011261 inert gas Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000005192 partition Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000001502 supplementing effect Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/0053—Details of the reactor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/0006—Controlling or regulating processes
- B01J19/002—Avoiding undesirable reactions or side-effects, e.g. avoiding explosions, or improving the yield by suppressing side-reactions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J4/00—Feed or outlet devices; Feed or outlet control devices
- B01J4/001—Feed or outlet devices as such, e.g. feeding tubes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J4/00—Feed or outlet devices; Feed or outlet control devices
- B01J4/001—Feed or outlet devices as such, e.g. feeding tubes
- B01J4/007—Feed or outlet devices as such, e.g. feeding tubes provided with moving parts
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C7/00—Purification; Separation; Use of additives
- C07C7/148—Purification; Separation; Use of additives by treatment giving rise to a chemical modification of at least one compound
- C07C7/163—Purification; Separation; Use of additives by treatment giving rise to a chemical modification of at least one compound by hydrogenation
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Water Supply & Treatment (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The invention discloses crude benzene hydrogenation production equipment, which relates to the technical field of crude benzene hydrogenation production and comprises a reaction kettle, a hydrogenation tank arranged on one side of the reaction kettle, pumping equipment arranged on the top of the hydrogenation tank and a supply pipe arranged at an air outlet end on the top of the pumping equipment; a flame-retardant cavity is reserved between the outer wall of the inner container and the inner wall of the hydrogenation tank; one side of the top of the hydrogenation tank is communicated with a gas pressure gauge, and the top of the heating supporting plate is provided with lanthanum-nickel alloy for absorbing and storing hydrogen; a switching assembly is arranged in the switching disc; an anti-leakage mechanism is arranged in the fixed tube; the hydrogen storage capacity of the hydrogenation tank is improved in the process of carrying out production reaction on crude benzene by matching the hydrogenation tank with the lanthanum-nickel alloy and the heating supporting plate, so that the hydrogen can be absorbed and released in a large amount in a reversible way under certain temperature and pressure conditions through the reversible process between the lanthanum-nickel alloy and the hydrogen; the leakage prevention effect of the hydrogen filling tank during hydrogen injection is improved through the gas leakage prevention mechanism; the safety performance of the stored hydrogen is improved.
Description
Technical Field
The invention relates to the technical field of crude benzene hydrogenation production, in particular to crude benzene hydrogenation production equipment.
Background
In the crude benzene hydrogenation production process, hydrogen is required to be introduced into a reaction kettle body, crude benzene production liquid in the reaction kettle body is heated, and then the hydrogen is required to be intermittently supplemented into a crude benzene hydrogenation reaction tank in the crude benzene hydrogenation production process, so that the reaction can be smoothly carried out; the storage capacity of the hydrogenation tank for hydrogen is not large (for example, only 0.5 kg of hydrogen can be filled in a 40 cubic centimeter steel cylinder); therefore, the above problems need to be dealt with.
Disclosure of Invention
The invention aims to solve the defects in the prior art and provides crude benzene hydrogenation production equipment.
In order to achieve the purpose, the invention adopts the following technical scheme: a crude benzene hydrogenation production device comprises a reaction kettle, a hydrogenation tank arranged on one side of the reaction kettle, pumping equipment arranged on the top of the hydrogenation tank, and a supply pipe arranged at the gas outlet end of the top of the pumping equipment, wherein the top end of the supply pipe is fixedly connected with the gas inlet end of the reaction kettle; an inner container is arranged inside the hydrogenation tank, a flame-retardant cavity is reserved between the outer wall of the inner container and the inner wall of the hydrogenation tank, inert flame-retardant gas is filled inside the flame-retardant cavity, and a plurality of support tubes are uniformly arranged inside the flame-retardant cavity; the upper part of the outer wall of one side of the hydrogenation tank is transversely provided with a gas injection pipe, and the gas injection pipe is provided with a one-way gas inlet valve; the inner end of the gas injection pipe is fixedly communicated with the inside of the inner container, one side of the top of the hydrogenation tank is vertically communicated with a gas pressure gauge, the inner bottom surface of the inner container is horizontally provided with a heating support plate, a heating cavity is formed in the heating support plate, the front end and the rear end of the lower part of the other side surface of the hydrogenation tank are both transversely provided with a flow guide pipe communicated with the heating cavity, and the top of the heating support plate is provided with lanthanum-nickel alloy for absorbing and storing hydrogen;
the upper part of the other side of the hydrogenation tank is transversely communicated with a bent-pipe-shaped output pipe, the outer end of the output pipe is fixedly communicated with the air inlet end of pumping equipment, and a one-way air outlet valve is mounted on the output pipe; the outer end of the gas injection pipe is provided with a switching disc, the outer end of the switching disc is provided with a connecting pipe, and a switching assembly is arranged in the switching disc; the upper part of the inner wall of one side of the inner container is transversely provided with a fixed pipe with the same axle center as the air injection pipe; and an air leakage prevention mechanism is arranged in the fixed pipe.
A plurality of gas injection channels are equidistantly arranged on the peripheral side of the inner wall of the gas injection pipe, and the inner ends of the gas injection channels are communicated with the flame-retardant cavity; the outer end of the gas injection channel is fixedly communicated with the interior of the switching disc; a plurality of through openings are formed in the middle of the inner side face of the inner end of the switching plate at equal intervals.
The switching assembly comprises a turntable which is vertically and rotatably attached to the inner wall of the inner end of the switching disc, a rotating rod which is transversely and rotatably arranged in the middle of the inner wall of the outer end of the switching disc, and a plurality of injection openings which are formed in the peripheral side of the middle of one side surface of the turntable, and a plurality of air inlet strip openings matched with the air injection channels are formed in the outer side of one side surface of the turntable at equal intervals; a plurality of communicating ports are formed in the periphery of the middle of the outer wall of one side of the switching disc at equal intervals.
The outer end of the rotating rod movably penetrates into the connecting pipe, and a spline sleeve is fixedly connected to the outer end of the rotating rod; the inner side surface of the rotary disc is in sealing fit with the inner wall of the switching disc.
The anti-gas release mechanism comprises a plugging plate vertically and movably arranged in one end of the fixed pipe, a plugging block fixedly connected to the middle of one side face of the plugging plate, a positioning plate vertically arranged in the other end of the fixed pipe, a cross rod transversely and fixedly connected to the upper end and the lower end of one side face of the positioning plate and a return spring movably sleeved on the cross rod, wherein one end of the cross rod movably penetrates through the plugging plate and is fixedly connected with the inner wall of the liner; the blocking block sealing plug is arranged in the pipe body at the inner end of the gas injection pipe; the inner edge of the plugging block is arc-surface-shaped, and the inner end of the return spring is movably abutted against the other side face of the plugging plate.
A gas passing port is formed in the middle of one side face of the positioning plate, a U-shaped plate is longitudinally arranged inside the gas passing port, and turbine blades are transversely and rotatably arranged inside the U-shaped plate; the water conservancy diversion mouth has been seted up at the opposite side middle part of shutoff board, a plurality of slope mouths have been seted up to the outside equidistance of a side of shutoff board, the inner and the fixed intercommunication of water conservancy diversion mouth of slope mouth.
Compared with the prior art, the invention has the beneficial effects that: the invention greatly improves the storage capacity of the hydrogenation tank for hydrogen in the process of carrying out production reaction on crude benzene by matching the hydrogenation tank with the lanthanum nickel alloy and the heating supporting plate, is convenient to pass through the reversible process between the lanthanum nickel alloy and the hydrogen, and is convenient to absorb and reversibly release a large amount of hydrogen under certain temperature and pressure conditions; not only improves the stability and storage capacity of hydrogen storage; the anti-leakage effect of the hydrogen filling tank during hydrogen filling is greatly improved through the anti-leakage mechanism; the safety performance of the stored hydrogen is effectively improved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention. In the drawings:
FIG. 1 is a schematic front view of the present invention;
FIG. 2 is a cross-sectional view of a hydrogenation tank configuration of the present invention;
FIG. 3 is a cross-sectional view of a fixed tube construction of the present invention;
FIG. 4 is a sectional view of the structure of the switching disk and the plugging plate according to the present invention;
FIG. 5 is a structural diagram of a first state of a turntable according to the present invention;
FIG. 6 is a structural diagram of a second state of a turntable according to the present invention.
Number in the figure: 1. a reaction kettle; 2. a hydrogenation tank; 3. a pumping device; 4. a supply pipe; 5. a gas injection pipe; 6. a barometer; 7. a flow guide pipe; 8. an output pipe; 9. heating the supporting plate; 10. lanthanum nickel alloy; 11. a connecting pipe; 12. a switching disc; 13. a flame retardant cavity; 14. supporting a tube; 15. a gas injection channel; 16. fixing the tube; 17. a plugging plate; 18. a plugging block; 19. positioning a plate; 20. a cross bar; 21. a return spring; 22. a turbine blade; 23. a turntable; 24. a rotating rod; 25. an injection port; 26. an air inlet strip port.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Example (b): referring to fig. 1 to 6, a crude benzene hydrogenation production device comprises a reaction kettle 1, a hydrogenation tank 2 arranged on one side of the reaction kettle 1, a pumping device 3 arranged on the top of the hydrogenation tank 2, and a supply pipe 4 arranged on the gas outlet end of the top of the pumping device 3, wherein the top end of the supply pipe 4 is fixedly connected with the gas inlet end of the reaction kettle 1; an inner container is arranged inside the hydrogenation tank 2, a flame-retardant cavity 13 is reserved between the outer wall of the inner container and the inner wall of the hydrogenation tank 2, inert flame-retardant gas is filled inside the flame-retardant cavity 13, and a plurality of support tubes 14 are uniformly arranged inside the flame-retardant cavity 13; the upper part of the outer wall of one side of the hydrogenation tank 2 is transversely provided with a gas injection pipe 5, and the gas injection pipe 5 is provided with a one-way gas inlet valve; the inner end of the gas injection pipe 5 is fixedly communicated with the inner part of the liner, one side of the top of the hydrogenation tank 2 is vertically communicated with a barometer 6, and the barometer 6 is convenient for monitoring and displaying the air pressure in the hydrogenation tank 2; the inner bottom surface of the inner container is horizontally provided with a heating supporting plate 9, a heating cavity is formed in the heating supporting plate 9, the front end and the rear end of the lower part of the other side surface of the hydrogenation tank 2 are respectively and transversely provided with a flow guide pipe 7 communicated with the heating cavity, the top of the heating supporting plate 9 is provided with a lanthanum-nickel alloy 10 used for hydrogen absorption and storage, the top surface of the lanthanum-nickel alloy 10 is provided with a plurality of partition grooves at equal intervals, so that the effect of hydrogen absorption is improved, and meanwhile, the lanthanum-nickel alloy 10 can be quickly heated and heated to release hydrogen through the partition grooves; when the lanthanum-nickel alloy 10 is used for storing hydrogen, the hydrogen storage capacity can reach 88 kilograms per cubic meter and is higher than 70.6 kilograms per cubic meter of liquid hydrogen, the upper part of the other side of the hydrogenation tank 2 is transversely communicated with an output pipe 8 in a bent pipe shape, the outer end of the output pipe 8 is fixedly communicated with the air inlet end of the pumping equipment 3, and the output pipe 8 is provided with a one-way air outlet valve; the outer end of the gas injection pipe 5 is provided with a switching plate 12, the outer end of the switching plate 12 is provided with a connecting pipe 11, and a switching assembly is arranged inside the switching plate 12; the upper part of the inner wall of one side of the inner container is transversely provided with a fixed pipe 16 with the same axle center as the air injection pipe 5; an air leakage prevention mechanism is arranged inside the fixed pipe 16; through the matching of the hydrogenation tank 2, the lanthanum-nickel alloy 10 and the heating supporting plate 9, in the process of carrying out production reaction on crude benzene, the storage capacity of the hydrogenation tank 2 for hydrogen is greatly improved, the reversible process between the lanthanum-nickel alloy 10 and the hydrogen is facilitated, and a large amount of hydrogen can be absorbed and reversibly released under the conditions of certain temperature and pressure; not only improves the stability and storage capacity of hydrogen storage; the anti-leakage effect of the hydrogen filling tank 2 during hydrogen filling is greatly improved through the anti-leakage mechanism; the safety performance of the stored hydrogen is effectively improved.
In the invention, a plurality of gas injection channels 15 are equidistantly arranged on the peripheral side of the inner wall of the gas injection pipe 5, and the inner ends of the gas injection channels 15 are communicated with the flame-retardant cavity 13; the outer end of the gas injection channel 15 is fixedly communicated with the interior of the switching disc 12; a plurality of through openings are equidistantly formed in the peripheral side of the middle part of the inner side surface of the inner end of the switching plate 12; the switching assembly comprises a rotary table 23 vertically and rotatably attached to the inner wall of the inner end of the switching disc 12, a rotary rod 24 transversely and rotatably arranged in the middle of the inner wall of the outer end of the switching disc 12, and a plurality of injection ports 25 formed in the periphery of the middle of one side of the rotary table 23, and a plurality of air inlet strip ports 26 matched with the air injection channels 15 are formed in the outer side of one side of the rotary table 23 at equal intervals; a plurality of communication ports are equidistantly formed in the peripheral side of the middle part of the outer wall of one side of the switching disc 12; the outer end of the rotating rod 24 movably penetrates into the connecting pipe 11, and a spline sleeve is fixedly connected to the outer end of the rotating rod 24; the inner side surface of the rotary disc 23 is in sealing fit with the inner wall of the switching disc 12, so that the sealing effect of the rotary disc 23 on the gas injection channel 15 and the through hole during rotation switching is improved.
In the invention, the air leakage preventing mechanism comprises a plugging plate 17 vertically and movably arranged in one end of a fixed pipe 16, a plugging block 18 fixedly connected to the middle part of one side surface of the plugging plate 17, a positioning plate 19 vertically arranged in the other end of the fixed pipe 16, a cross rod 20 transversely and fixedly connected to the upper end and the lower end of one side surface of the positioning plate 19 and a return spring 21 movably sleeved on the cross rod 20, wherein one end of the cross rod 20 movably penetrates through the plugging plate 17 and is fixedly connected with the inner wall of the liner; the sealing plug of the sealing block 18 is arranged in the tube body at the inner end of the gas injection tube 5; the inner end edge of the blocking block 18 is arc-surface-shaped, the inner end of the return spring 21 is movably abutted against the other side surface of the blocking plate 17, so that the leakage-proof effect on the gas injection pipe 5 is improved when hydrogen is supplemented, and the double-protection effect can be achieved.
In the invention, the middle part of one side surface of the positioning plate 19 is provided with an air passing port, a U-shaped plate is longitudinally arranged inside the air passing port, and a turbine blade 22 is transversely arranged inside the U-shaped plate in a rotating way; the middle part of the other side of the plugging plate 17 is provided with a flow guide port, the outer side of one side surface of the plugging plate 17 is provided with a plurality of inclined ports at equal intervals, and the inner ends of the inclined ports are fixedly communicated with the flow guide port, so that the added hydrogen can be guided and concentrated conveniently.
The working principle is as follows: in this embodiment, the present invention further provides a method for using a crude benzene hydrogenation production facility, including the following steps:
firstly, fixedly communicating a gas inlet end of pumping equipment 3 with an output pipe 8 of a hydrogenation tank 2, then fixedly communicating a supply pipe 4 at the top of the pumping equipment 3 with a gas inlet end of a reaction kettle 1, when hydrogen needs to be stored in the hydrogenation tank 2, firstly rotating a rotating rod 24 to drive a rotating disc 23 to rotate, so that a filling port 25 on the rotating disc 23 is staggered with a through port on a switching disc 12, and further, a main gas filling pipeline of a gas filling pipe 5 is sealed, and a gas inlet strip port 26 is communicated with the outer end of a gas filling channel 15 while the rotating disc 23 rotates; meanwhile, the two flow guide pipes 7 are fixedly communicated with external heat supply gas equipment, so that hot gas can form a circulating flow effect among the heating cavity, the two flow guide pipes 7 and the external heat supply gas equipment;
secondly, injecting inert gas (such as carbon dioxide, nitrogen and the like) into the flame-retardant cavity 13 by using the connecting pipe 11 and external gas injection equipment, disconnecting the external gas injection equipment from the connecting pipe 11 after the injection of the inert gas into the flame-retardant cavity 13 is finished, immediately rotating the rotating rod 24 to drive the rotating disc 23 to reset, conveniently plugging the gas injection channel 15 through the reset rotating disc 23, and simultaneously enabling the injection port 25 to be coincided and communicated with the through hole;
thirdly, communicating an equipment pipeline for conveying hydrogen from the outside with the connecting pipe 11, opening a one-way air inlet valve on the air injection pipe 5, then supplying and supplementing hydrogen into the inner container in the hydrogenation tank 2 through an external hydrogen supplementing device, pushing the plugging block 18 to exit out of the pipe body under the action of air pressure when the hydrogen enters the air injection pipe 5, enabling the hydrogen to be converged in the guide groove through a plurality of inclined ports, then directly blowing the converged hydrogen onto the turbine blades 22 so as to enable the turbine blades 22 to rotate, and enabling the injected hydrogen to be subjected to turbulent flow through the rotating turbine blades 22, so that the uniformity of the lanthanum-nickel alloy 10 in absorbing and storing the hydrogen is improved, and the lanthanum-nickel alloy 10 absorbs the hydrogen to form metal hydride and stores the hydrogen;
when hydrogen is required to be added into crude benzene in the reaction kettle 1, an external heat supply device is started to supply hot gas to the interior of the heating cavity through the flow guide pipe 7, the heating supporting plate 9 is heated, the interior of the liner is heated through the heating of the heating supporting plate 9, the metal hydride is heated, the hydrogen can be separated from the alloy through the heated metal hydride, then the pumping device 3, the output pipe 8 and the supply pipe 4 can be started to be matched, the hydrogen is added into the reaction kettle 1, and the crude benzene can be subjected to reaction operation after hydrogenation through the reaction kettle 1.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (3)
1. The utility model provides a crude benzene hydrogenation production facility, includes reation kettle (1), locates hydrogenation jar (2) of reation kettle (1) one side, locates pumping installations (3) at hydrogenation jar (2) top and locates supply pipe (4) of the end of giving vent to anger in pumping installations (3) top, its characterized in that: the top end of the feeding pipe (4) is fixedly connected with the gas filling end of the reaction kettle (1); an inner container is arranged in the hydrogenation tank (2), a flame-retardant cavity (13) is reserved between the outer wall of the inner container and the inner wall of the hydrogenation tank (2), inert flame-retardant gas is filled in the flame-retardant cavity (13), and a plurality of support tubes (14) are uniformly arranged in the flame-retardant cavity (13); the upper part of the outer wall of one side of the hydrogenation tank (2) is transversely provided with a gas injection pipe (5), and the gas injection pipe (5) is provided with a one-way gas inlet valve; the inner end of the gas injection pipe (5) is fixedly communicated with the interior of the inner container, one side of the top of the hydrogenation tank (2) is vertically communicated with a gas pressure gauge (6), the inner bottom surface of the inner container is horizontally provided with a heating supporting plate (9), a heating cavity is formed in the heating supporting plate (9), the front end and the rear end of the lower part of the other side surface of the hydrogenation tank (2) are respectively and transversely provided with a flow guide pipe (7) communicated with the heating cavity, and the top of the heating supporting plate (9) is provided with a lanthanum-nickel alloy (10) for absorbing and storing hydrogen;
the upper part of the other side of the hydrogenation tank (2) is transversely communicated with a bent pipe-shaped output pipe (8), the outer end of the output pipe (8) is fixedly communicated with the air inlet end of the pumping equipment (3), and the output pipe (8) is provided with a one-way air outlet valve; the outer end of the gas injection pipe (5) is provided with a switching disc (12), the outer end of the switching disc (12) is provided with a connecting pipe (11), and a switching assembly is arranged inside the switching disc (12); the upper part of the inner wall of one side of the inner container is transversely provided with a fixed pipe (16) with the same axle center as the air injection pipe (5); an air leakage prevention mechanism is arranged inside the fixed pipe (16);
a plurality of gas injection channels (15) are arranged on the periphery of the inner wall of the gas injection pipe (5) at equal intervals, and the inner ends of the gas injection channels (15) are communicated with the flame-retardant cavity (13); the outer end of the air injection channel (15) is fixedly communicated with the interior of the switching disc (12); a plurality of through openings are formed in the middle peripheral side of the inner side face of the inner end of the switching plate (12) at equal intervals;
the switching assembly comprises a rotary table (23) which is vertically and rotatably attached to the inner wall of the inner end of the switching disc (12), a rotary rod (24) which is transversely and rotatably arranged in the middle of the inner wall of the outer end of the switching disc (12) and a plurality of injection ports (25) which are formed in the peripheral side of the middle of one side surface of the rotary table (23), and a plurality of air inlet strip ports (26) which are matched with the air injection channel (15) are formed in the outer side of one side surface of the rotary table (23) at equal intervals; a plurality of communicating ports are formed in the periphery of the middle part of the outer wall of one side of the switching disc (12) at equal intervals;
the outer end of the rotating rod (24) movably penetrates into the connecting pipe (11), and a spline sleeve is fixedly connected to the outer end of the rotating rod (24); the inner side surface of the rotary disc (23) is in sealing fit with the inner wall of the switching disc (12).
2. The crude benzene hydrogenation production facility of claim 1, wherein: the air leakage preventing mechanism comprises a plugging plate (17) vertically and movably arranged in one end of the fixed pipe (16), a plugging block (18) fixedly connected to the middle of one side face of the plugging plate (17), a positioning plate (19) vertically arranged in the other end of the fixed pipe (16), a cross rod (20) transversely and fixedly connected to the upper end and the lower end of one side face of the positioning plate (19) and a reset spring (21) movably sleeved on the cross rod (20), wherein one end of the cross rod (20) movably penetrates through the plugging plate (17) and is fixedly connected with the inner wall of the liner; the sealing plug of the sealing block (18) is arranged in the tube body at the inner end of the gas injection tube (5); the inner end edge of the blocking block (18) is arc-surface-shaped, and the inner end of the return spring (21) is movably abutted against the other side face of the blocking plate (17).
3. The crude benzene hydrogenation production facility of claim 2, wherein: a gas passing opening is formed in the middle of one side face of the positioning plate (19), a U-shaped plate is longitudinally arranged in the gas passing opening, and turbine blades (22) are transversely and rotatably arranged in the U-shaped plate; the water conservancy diversion mouth has been seted up at the opposite side middle part of shutoff board (17), a plurality of slope mouths have been seted up to the outside equidistance of a side of shutoff board (17), the inner and the fixed intercommunication of water conservancy diversion mouth of slope mouth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211473557.8A CN115532196B (en) | 2022-11-23 | 2022-11-23 | Crude benzene hydrogenation production equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211473557.8A CN115532196B (en) | 2022-11-23 | 2022-11-23 | Crude benzene hydrogenation production equipment |
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| JP6036747B2 (en) * | 2014-05-09 | 2016-11-30 | 株式会社豊田中央研究所 | Gas storage and supply system |
| CN109334438B (en) * | 2018-10-29 | 2020-12-11 | 重庆林博汽车部件股份有限公司 | Automobile fuel tank with flame-retardant structure |
| CN110498393B (en) * | 2019-09-27 | 2021-03-26 | 郑州佛光发电设备有限公司 | Hydrogen generation device and method based on pressure control and fuel cell system |
| CN112762347B (en) * | 2020-12-16 | 2022-05-06 | 淄博安泽特种气体有限公司 | Intelligent exhaust explosion-proof hydrogen storage cabinet |
| CN214361085U (en) * | 2021-01-18 | 2021-10-08 | 宁夏天源石化有限责任公司 | Purification device for crude benzene hydrogenation production |
| CN214915846U (en) * | 2021-02-02 | 2021-11-30 | 河北锐鑫津化新能源科技有限公司 | Energy-saving hydrogenation reactor |
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Denomination of invention: A crude benzene hydrogenation production equipment Granted publication date: 20230418 Pledgee: Xinjiang Bank Co.,Ltd.|Industrial Bank Co.,Ltd. Urumqi Branch|China Minsheng Bank Co.,Ltd. Urumqi Branch Pledgor: Weifang Sanchang Chemical Technology Co.,Ltd. Registration number: Y2024980003310 |