CN114950280A - Shell and tube heat exchanger and ft synthesis slurry bed reactor - Google Patents
Shell and tube heat exchanger and ft synthesis slurry bed reactor Download PDFInfo
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- CN114950280A CN114950280A CN202210402865.5A CN202210402865A CN114950280A CN 114950280 A CN114950280 A CN 114950280A CN 202210402865 A CN202210402865 A CN 202210402865A CN 114950280 A CN114950280 A CN 114950280A
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- 238000003786 synthesis reaction Methods 0.000 title claims abstract description 34
- 230000015572 biosynthetic process Effects 0.000 title claims abstract description 32
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- 238000010438 heat treatment Methods 0.000 claims abstract description 86
- 230000007246 mechanism Effects 0.000 claims abstract description 23
- 238000010521 absorption reaction Methods 0.000 claims description 33
- 239000000428 dust Substances 0.000 claims description 9
- 230000000149 penetrating effect Effects 0.000 claims description 7
- 229910000838 Al alloy Inorganic materials 0.000 claims description 5
- 239000000956 alloy Substances 0.000 claims description 5
- 238000012856 packing Methods 0.000 claims 2
- 238000004519 manufacturing process Methods 0.000 abstract description 15
- 239000000126 substance Substances 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 31
- 239000012495 reaction gas Substances 0.000 description 25
- 230000000694 effects Effects 0.000 description 16
- 239000006096 absorbing agent Substances 0.000 description 7
- 238000009413 insulation Methods 0.000 description 6
- 239000003054 catalyst Substances 0.000 description 5
- 238000001816 cooling Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 206010053615 Thermal burn Diseases 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 230000008020 evaporation Effects 0.000 description 3
- 238000001704 evaporation Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
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- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 239000003034 coal gas Substances 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
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- 229930195733 hydrocarbon Natural products 0.000 description 1
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- 229910052742 iron Inorganic materials 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
- B01J8/00—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
- B01J8/18—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles
- B01J8/1836—Heating and cooling the reactor
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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
- B01J8/00—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
- B01J8/18—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles
- B01J8/1809—Controlling processes
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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
- B01J8/00—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
- B01J8/18—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles
- B01J8/1818—Feeding of the fluidising gas
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G2/00—Production of liquid hydrocarbon mixtures of undefined composition from oxides of carbon
- C10G2/30—Production of liquid hydrocarbon mixtures of undefined composition from oxides of carbon from carbon monoxide with hydrogen
- C10G2/32—Production of liquid hydrocarbon mixtures of undefined composition from oxides of carbon from carbon monoxide with hydrogen with the use of catalysts
- C10G2/34—Apparatus, reactors
- C10G2/342—Apparatus, reactors with moving solid catalysts
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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
- B01J2208/00—Processes carried out in the presence of solid particles; Reactors therefor
- B01J2208/00008—Controlling the process
- B01J2208/00017—Controlling the temperature
- B01J2208/00106—Controlling the temperature by indirect heat exchange
- B01J2208/00168—Controlling the temperature by indirect heat exchange with heat exchange elements outside the bed of solid particles
- B01J2208/00176—Controlling the temperature by indirect heat exchange with heat exchange elements outside the bed of solid particles outside the reactor
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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
- B01J2208/00—Processes carried out in the presence of solid particles; Reactors therefor
- B01J2208/00008—Controlling the process
- B01J2208/00017—Controlling the temperature
- B01J2208/00106—Controlling the temperature by indirect heat exchange
- B01J2208/00168—Controlling the temperature by indirect heat exchange with heat exchange elements outside the bed of solid particles
- B01J2208/00203—Coils
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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
- B01J2208/00—Processes carried out in the presence of solid particles; Reactors therefor
- B01J2208/00796—Details of the reactor or of the particulate material
- B01J2208/00893—Feeding means for the reactants
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
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- General Chemical & Material Sciences (AREA)
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Abstract
The invention relates to the technical field of chemical equipment, in particular to a tube type heat exchanger and a Fischer-Tropsch synthesis slurry bed reactor. According to the invention, the temperature control mechanism is arranged, the first spiral pipe and the second spiral pipe are arranged and are matched with the through hole for use, so that the heat exchange efficiency of the device is enhanced, the heat exchange strength of the device can be adjusted according to actual conditions by controlling the water supply states of the water inlet pipe, the first spiral pipe and the second spiral pipe, the purpose of controlling the temperature of the reactor main body can be achieved by arranging the heating fins, and the production efficiency of the reactor is increased.
Description
Technical Field
The invention relates to the technical field of chemical equipment, in particular to a shell and tube heat exchanger and a Fischer-Tropsch synthesis slurry bed reactor.
Background
Due to the shortage of petroleum resources in China, in order to guarantee the national energy safety and combine the characteristics of the national energy structure, the preparation of liquid fuel by taking coal as a raw material is an effective way for relieving the problem, wherein Fischer-Tropsch synthesis is one of the main methods. The Fischer-Tropsch synthesis is a method for preparing synthesis gas by taking coal or natural gas as a raw material, and producing hydrocarbon or alcohol liquid fuel by the synthesis gas at the temperature of 400-500 ℃ under the catalytic action of a catalyst mainly comprising iron or cobalt and the like.
The Fischer-Tropsch synthesis reaction is a strong exothermic reaction, so the exothermic quantity is large. When the Fischer-Tropsch synthesis reaction is carried out, the local overheating of the catalyst often occurs, and the carbon deposition of the catalyst and even the blockage of a bed layer are caused, so that the selectivity of the product is reduced. Therefore, there is a need for an efficient removal of heat generated in the reactor, ensuring the safety of the operation of the reactor and increasing the yield of the desired product.
The distribution of Fischer-Tropsch synthesis products and the activity of a catalyst are very sensitive to temperature, so that the maintenance of relatively constant temperature in a reactor is very important for smooth proceeding and safe operation of reaction in a slurry bed reactor, a tubular heat exchanger in the prior art has low heat exchange efficiency and no temperature control and regulation effect, cannot be well applied to the Fischer-Tropsch synthesis slurry bed reactor, and influences the production efficiency of the reactor.
Therefore, a shell and tube heat exchanger and a Fischer-Tropsch synthesis slurry bed reactor are provided.
Disclosure of Invention
The invention aims to provide a shell and tube heat exchanger and a Fischer-Tropsch synthesis slurry bed reactor, which aim to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a shell and tube heat exchanger and ft synthesis slurry bed reactor, includes the base, the upper end external surface fixedly connected with water tank of base, the upper end external surface fixedly connected with PMKD of water tank, PMKD's upper end external surface fixedly connected with absorber plate, the through-hole has been seted up to the inside of absorber plate, the one end fixedly connected with inlet tube of through-hole, the other end fixedly connected with outlet pipe of through-hole, the annular internal surface fixedly connected with reactor main part of absorber plate, the annular external surface fixedly connected with temperature control mechanism of reactor main part.
According to the invention, the temperature control mechanism is arranged, the first spiral pipe and the second spiral pipe are arranged and matched with the through hole for use, so that the heat exchange efficiency of the device is enhanced, the heat exchange strength of the device can be adjusted according to actual conditions by controlling the water supply states of the water inlet pipe, the first spiral pipe and the second spiral pipe, and the purpose of controlling the temperature of the reactor main body can be achieved by arranging the heating fins, so that the device can be better suitable for a Fischer-Tropsch synthesis slurry bed reactor, the production efficiency of the reactor is increased, the gas conveying pipe is arranged and matched with the heating fins for use, so that the purpose of preheating the reaction gas is realized, a special preheater is not required, the space occupied by equipment is reduced, and the manufacturing cost is reduced.
Preferably, the inner diameter of the through hole is the same as the inner diameters of the water inlet pipe and the water outlet pipe, the temperature control mechanism comprises a heating fin, a first spiral pipe and a second spiral pipe, the heating fin is fixedly connected to the annular outer surface of the heat absorbing plate, the first spiral pipe is connected to one side, close to the heat absorbing plate, of the inside of the heating fin in a penetrating mode, the second spiral pipe is connected to the position, close to the outer side of the first spiral pipe, of the inside of the heating fin in a penetrating mode, one end of the first spiral pipe and one end of the second spiral pipe are water inlet ends, and the other ends of the first spiral pipe and the second spiral pipe are water outlet ends.
When the device works, the distribution of Fischer-Tropsch synthesis products and the activity of a catalyst are very sensitive to temperature, so that the maintenance of relatively constant temperature in a reactor is very important for the smooth proceeding and safe operation of reaction in a slurry bed reactor, the tubular heat exchanger in the prior art has low heat exchange efficiency and no temperature control and regulation effect, cannot be well applied to the Fischer-Tropsch synthesis slurry bed reactor, and influences the production efficiency of the reactor. Finally, the heat is discharged from the water outlet ends of the first spiral pipe and the second spiral pipe, so that the purpose of exchanging heat generated inside the reactor main body is achieved, and the effect of cooling is achieved, if the temperature inside the reactor main body is lower, the water supply operation of the first spiral pipe, the second spiral pipe and the water inlet pipe can be stopped, meanwhile, the heating fins are electrified and heated, so that the heat of the heating fins is transferred to the reactor main body through the heat absorption plate, and the temperature of the reactor main body is raised. The device can be better suitable for a Fischer-Tropsch synthesis slurry bed reactor, and the production efficiency of the reactor is increased.
Preferably, the position of the inside of the heating fin, which is close to the outer side of the second spiral pipe, is connected with a gas conveying pipe in a penetrating manner, one end of the gas conveying pipe is fixedly connected with the center of the outer surface of the upper end of the reactor main body, and the other end of the gas conveying pipe is a gas inlet end.
When the reaction gas preheating device works, reaction gas is preheated before entering a reactor, and a special preheater is generally needed, so that the space occupied by the device is increased, and the manufacturing cost is improved, the gas conveying pipe is arranged and is matched with the heating fins for use, the heating fins are electrified for heating before the reaction gas is introduced into the reactor main body, then the reaction gas is introduced into the gas conveying pipe from the gas inlet end, flows along the gas conveying pipe and absorbs the heat generated by the heating fins, so that the preheating purpose is achieved, the heated reaction gas finally flows into the reactor main body, the gas conveying pipe is arranged and is matched with the heating fins for use, so that the preheating purpose of the reaction gas is achieved, the special preheater is not needed, and the space occupied by the device is reduced, and meanwhile, the manufacturing cost is reduced.
Preferably, the through hole is designed to be in an annular spiral structure so as to increase the contact area between the through hole and the heat absorbing plate, and the first spiral pipe, the second spiral pipe and the gas conveying pipe are designed to be in a U-shaped spiral structure so as to increase the contact area between the first spiral pipe, the second spiral pipe and the heating fin.
During operation, the contact area between the through hole and the heat absorbing plate can be increased, the contact area between the first spiral pipe, the second spiral pipe, the gas conveying pipe and the heating fins can be increased, and the heat exchange effect on cold water and reaction gas can be improved.
Preferably, the heat absorbing plate and the heating fins are made of aluminum alloy materials, and have good heat absorbing performance.
During operation, the heat absorption plate and the heating fins are made of the aluminum alloy material, so that the heat absorption performance of the heat absorption plate and the heating fins can be enhanced, and the heat exchange efficiency is improved.
Preferably, the outer surface of the upper end of the base is fixedly connected with a protection mechanism;
the protection mechanism comprises a protection plate, the protection plate is fixedly connected to the edge position of the outer surface of the upper end of the water tank, and cold water is filled in the water tank.
When the heating device works, the heat absorption performance of the heating fins is good, if the heating fins are not provided with the protection mechanisms for protection, the situation that a human body is contacted with the heating fins to scald is easily caused, and the safety of the heating device is reduced.
Preferably, the inside of guard plate is filled with the sponge that absorbs water, the lower extreme of the sponge that absorbs water runs through the water tank and extends to the internal surface bottom of water tank, the first logical groove of a plurality of has been seted up to the surface of guard plate.
In the invention, the water absorption sponge is filled in the protection plate, the water absorption sponge is used for absorbing cold water in the water tank, and the cold water absorbs heat emitted by the heating fins, so that evaporation and heat absorption are carried out, the heat is taken away, and the cooling effect of the device is further improved.
Preferably, the annular inner surface of the first through groove is fixedly connected with a dustproof net to prevent the water absorption sponge from being stained with dust.
During operation, the dust is isolated through the dust screen, the overall cleanness of the water absorption sponge is kept, and the service life of the water absorption sponge is prolonged.
Preferably, a water supply pipe is fixedly connected to one side of the outer surface of the lower end of the water tank, and a water level sensor is arranged on the annular inner surface of the water tank.
When the water level sensor is arranged, when the water level of the cold water in the water tank is lowered to a certain position, the water level sensor sends an electric signal to control the cold water to be automatically added into the water tank through the water supply pipe, the water level in the water tank rises to a proper position, and the water level sensor sends an electric signal again to cut off the water supply, so that the purpose of automatically adding water is realized, and the water is not required to be added manually.
Preferably, the upper end surface of water tank is located a plurality of electric telescopic handle of the even fixedly connected with in inboard position of guard plate, electric telescopic handle's upper end surface fixedly connected with lifter plate, the thermal-insulated slide of upper end surface edge position fixedly connected with of lifter plate, the surface both ends and the thermal-insulated slide sliding connection of guard plate, a plurality of second logical groove has been seted up to the surface of thermal-insulated slide near the position in first logical groove.
When the reactor is in operation, the heat insulation sliding plate is arranged, when the temperature in the reactor main body is low, the heating fins are required to be subjected to power-on heating, the heat of the heating fins is transferred to the reactor main body through the heat absorption plate, the temperature in the reactor main body is increased, and reaction gas is preheated, the electric telescopic rod can be started to extend out, the electric telescopic rod drives the lifting plate and the heat insulation sliding plate to move upwards, the second through grooves and the first through grooves are staggered, so that the water absorption sponge is subjected to heat insulation, the water absorption sponge is prevented from absorbing the heat generated by the heating fins, and the heating effect of the heating fins on the reactor main body and the reaction gas is influenced.
Compared with the prior art, the invention has the beneficial effects that:
the invention can adjust the heat exchange intensity of the device according to the actual situation by arranging the temperature control mechanism and arranging the first spiral pipe and the second spiral pipe which are matched with the through hole to enhance the heat exchange efficiency of the device, can better adapt to the Fischer-Tropsch synthesis slurry bed reactor by controlling the water supply state of the water inlet pipe, the first spiral pipe and the second spiral pipe, can achieve the aim of controlling the temperature of the reactor main body by arranging the heating fin, increases the production efficiency of the reactor, realizes the aim of preheating the reaction gas by arranging the gas conveying pipe and matching with the heating fin, does not need to be provided with a special preheater, not only reduces the space occupied by equipment, but also reduces the manufacturing cost, and prevents scalding caused by the contact of a human body and the heating fin by arranging the protection plate outside the heating fin by arranging the protection mechanism, the safety of the device is improved, the water absorption sponge is filled in the protection plate, the water absorption sponge is used for absorbing cold water in the water tank, and the cold water absorbs heat generated by evaporation and absorption of heat dissipated by the heating fins, so that the heat is taken away, and the cooling effect of the device is further improved.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the combination of the reactor body and the heating fins according to the present invention;
FIG. 3 is a sectional view of the reactor body and absorber plate according to the present invention;
FIG. 4 is a schematic view of a first coil according to the present invention;
FIG. 5 is a schematic view of the combination of the main body and the gas pipe of the reactor according to the present invention;
FIG. 6 is an enlarged view of the structure at A in FIG. 1 according to the present invention;
FIG. 7 is an enlarged view of the structure of FIG. 3 at B in accordance with the present invention;
FIG. 8 is a combined cross-sectional view of the thermal slide and fender according to the invention.
In the figure: 1. a base; 11. fixing the bottom plate; 12. a heat absorbing plate; 13. a reactor body; 14. a through hole; 15. a water inlet pipe; 16. a water outlet pipe; 17. a water tank; 2. a temperature control mechanism; 21. heating the fins; 22. a first coil; 23. a second coil; 24. a gas delivery pipe; 3. a protection mechanism; 31. a protection plate; 32. a water-absorbing sponge; 33. a first through groove; 34. a dust screen; 35. a water supply pipe; 36. a water level sensor; 37. an electric telescopic rod; 38. a lifting plate; 39. a heat insulation slide plate; 310. a second through groove.
Detailed Description
The invention now will be described in connection with a few, but not all, embodiments of the invention. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations or positional relationships based on those shown in the drawings, merely for convenience of description and simplification of the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise. Furthermore, the terms "mounted," "connected," and "coupled" are to be construed broadly and may include, for example, fixed connections, removable connections, or integral connections; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1 to 8, the invention provides a technical scheme of a tubular heat exchanger and a fischer-tropsch synthesis slurry bed reactor:
the utility model provides a shell and tube heat exchanger and ft synthesis slurry bed reactor, as shown in fig. 1 to 3, includes base 1, the outer fixed surface in upper end of base 1 is connected with water tank 17, the outer fixed surface in upper end of water tank 17 is connected with PMKD 11, the outer fixed surface in upper end of PMKD 11 is connected with absorber plate 12, through-hole 14 has been seted up to absorber plate 12's inside, the one end fixedly connected with inlet tube 15 of through-hole 14, the other end fixedly connected with outlet pipe 16 of through-hole 14, the annular internal surface fixedly connected with reactor main part 13 of absorber plate 12, the annular outer fixed surface fixedly connected with temperature control mechanism 2 of reactor main part 13.
According to the invention, the temperature control mechanism 2 is arranged, the first spiral tube 22 and the second spiral tube 23 are arranged and matched with the through hole 14 for use, so that the heat exchange efficiency of the device is enhanced, the water supply states of the water inlet tube 15, the first spiral tube 22 and the second spiral tube 23 are controlled, so that the heat exchange strength of the device can be adjusted according to actual conditions, the purpose of controlling the temperature of the reactor main body 13 can be achieved by arranging the heating fins 21, the device can be better suitable for a Fischer-Tropsch synthesis slurry bed reactor, the production efficiency of the reactor is increased, the gas conveying pipe 24 is arranged and is matched with the heating fins 21 for use, so that the purpose of preheating reaction gas is realized, a special preheater is not required, the space occupied by equipment is reduced, and the manufacturing cost is reduced.
As an embodiment of the present invention, as shown in fig. 2 and 4, the inner diameter of the through hole 14 is the same as the inner diameters of the water inlet pipe 15 and the water outlet pipe 16, the temperature control mechanism 2 includes a heating fin 21, a first spiral pipe 22 and a second spiral pipe 23, the heating fins 21 are fixedly connected to the annular outer surface of the heat absorbing plate 12, one side of the inside of the heating fin 21, which is close to the heat absorbing plate 12, is connected with the first spiral pipe 22 in a penetrating manner, the position of the inside of the heating fin 21, which is close to the outer side of the first spiral pipe 22, is connected with the second spiral pipe 23 in a penetrating manner, one end of each of the first spiral pipe 22 and the second spiral pipe 23 is a water inlet end, and the other end of each of the first spiral pipe 22 and the second spiral pipe 23 is a water outlet end.
In the invention, by arranging the temperature control mechanism 2, when the temperature in the reactor main body 13 is overhigh and needs to be cooled, cold water is introduced into the water inlet pipe 15, enters the through hole 14 from the water inlet pipe 15 and circularly flows to absorb the heat in the heat absorbing plate 12 and then flows out from the water outlet pipe 16, and simultaneously, the cold water is introduced into the water inlet ends of the first spiral pipe 22 and the second spiral pipe 23 and circularly flows along the interiors of the first spiral pipe 22 and the second spiral pipe 23, the heat in the heating fin 21 is absorbed and finally discharged from the water outlet ends of the first spiral tube 22 and the second spiral tube 23, so that the purpose of exchanging heat generated in the reactor main body 13 is achieved, and the effect of cooling is achieved, if the temperature in the reactor main body 13 is low, the water supply operation of the first spiral tube 22, the second spiral tube 23 and the water inlet pipe 15 can be stopped, meanwhile, the heating fin 21 is electrified and heated, so that the heat of the heating fin 21 is transferred to the reactor main body 13 through the heat absorbing plate 12, and the temperature of the reactor main body 13 is raised, through the arrangement of the temperature control mechanism 2, the first spiral tube 22 and the second spiral tube 23 are matched with the through hole 14 for use through arrangement of the first spiral tube 22 and the second spiral tube 23, so that the heat exchange efficiency of the device is enhanced, through the control of the water supply state of the water inlet pipe 15, the first spiral tube 22 and the second spiral tube 23, the heat exchange strength of the device can be adjusted according to actual conditions, and can reach the purpose of controlling the temperature to reactor main part 13 through setting up heating fin 21, make the device can be better be applicable to ft synthesis slurry bed reactor, increased the production efficiency of reactor.
As an embodiment of the present invention, as shown in fig. 2 and 5, a gas pipe 24 is penetratingly connected to a position inside the heating fin 21 near the outer side of the second spiral tube 23, one end of the gas pipe 24 is fixedly connected to a central position of an outer surface of an upper end of the reactor main body 13, and the other end thereof is a gas inlet end.
When the preheating device works, reaction gas needs to be preheated before entering a reactor, a special preheater is generally needed, the space occupied by the device is increased, and the manufacturing cost is improved, in the preheating device, the gas conveying pipe 24 is arranged and is matched with the heating fins 21 for use, the heating fins 21 are electrified and heated firstly before the reaction gas is introduced into the reactor main body 13, then the reaction gas is introduced into the gas conveying pipe 24 from the gas inlet end, the reaction gas flows along the inside of the gas conveying pipe 24 and absorbs heat generated by the heating fins 21, so that the preheating purpose is achieved, the heated reaction gas finally flows into the reactor main body 13, the gas conveying pipe 24 is arranged and is matched with the heating fins 21 for use, so that the purpose of preheating the reaction gas is achieved, the special preheater is not needed, the space occupied by the device is reduced, and meanwhile, the manufacturing cost is reduced.
As an embodiment of the present invention, as shown in fig. 2 to 5, the through hole 14 is designed to have a circular spiral structure to increase a contact area between the through hole and the heat absorbing plate 12, and the first spiral tube 22, the second spiral tube 23 and the air pipe 24 are designed to have a U-shaped spiral structure to increase a contact area between the three and the heating fin 21.
When the heat exchanger works, the contact area between the through hole 14 and the heat absorbing plate 12 can be increased, and the contact area between the first spiral pipe 22, the second spiral pipe 23, the gas conveying pipe 24 and the heating fins 21 can be increased, so that the heat exchange effect on cold water and reaction gas can be improved.
As an embodiment of the present invention, as shown in fig. 2, the heat absorbing plate 12 and the heating fins 21 are made of an aluminum alloy material, and have good heat absorbing performance.
During operation, the heat absorption plate 12 and the heating fins 21 are made of aluminum alloy materials, so that the heat absorption performance of the heat absorption plate and the heating fins can be enhanced, and the heat exchange efficiency is improved.
As an embodiment of the present invention, as shown in fig. 1 and 3, a protection mechanism 3 is fixedly connected to an outer surface of an upper end of the base 1;
the protection mechanism 3 comprises a protection plate 31, the protection plate 31 is fixedly connected to the edge position of the outer surface of the upper end of the water tank 17, and cold water is filled in the water tank 17.
When the heating device works, as the heat absorption performance of the heating fins 21 is good, if the protection mechanism 3 is not arranged for protection, the situation that a human body is contacted with the heating fins 21 to scald is easily caused, and the safety of the heating device is reduced.
As an embodiment of the present invention, as shown in fig. 3, 6 and 7, a water absorption sponge 32 is filled in the protection plate 31, a lower end of the water absorption sponge 32 penetrates through the water tank 17 and extends to a bottom end of an inner surface of the water tank 17, and a plurality of first through grooves 33 are opened on an outer surface of the protection plate 31.
In the working process, although the protection plate 31 is arranged, the scald situation caused by the contact of a human body and the heating fins 21 can be prevented, the protection plate 31 also obstructs the heat dissipation of the heating fins 21, and therefore the cooling effect of the device is affected.
As an embodiment of the present invention, as shown in fig. 1 and 6, a dust screen 34 is fixedly connected to an annular inner surface of the first through groove 33 to prevent the water absorbing sponge 32 from being contaminated by dust.
During operation, the dust is isolated through the dust screen 34, the overall cleanness of the water absorption sponge 32 is kept, and the service life of the water absorption sponge 32 is prolonged.
As one embodiment of the present invention, as shown in fig. 3, a water supply pipe 35 is fixedly connected to one side of the outer surface of the lower end of the water tank 17, and a water level sensor 36 is disposed on the annular inner surface of the water tank 17.
When the automatic water adding device works, water absorbed by the water absorption sponge 32 is continuously evaporated, cold water needs to be continuously absorbed into the water tank 17, and therefore water needs to be continuously added into the water tank 17.
As an embodiment of the present invention, as shown in fig. 3, 7 and 8, a plurality of electric telescopic rods 37 are uniformly and fixedly connected to a position of an upper outer surface of the water tank 17, which is located inside the protection plate 31, a lifting plate 38 is fixedly connected to an upper outer surface of the electric telescopic rods 37, an insulating slide plate 39 is fixedly connected to an edge position of an upper outer surface of the lifting plate 38, two ends of an outer surface of the protection plate 31 are slidably connected to the insulating slide plate 39, and a plurality of second through grooves 310 are formed in a position of an outer surface of the insulating slide plate 39, which is close to the first through groove 33.
When the reactor main body 13 is in operation, the heat insulation sliding plate 39 is arranged, when the temperature inside the reactor main body 13 is low, the heating fins 21 need to be heated by electrifying, the heat of the heating fins 21 is transferred to the reactor main body 13 through the heat absorption plate 12, the temperature inside the reactor main body 13 is raised, and the reaction gas is preheated, the electric telescopic rod 37 is started to extend out, the electric telescopic rod 37 drives the lifting plate 38 and the heat insulation sliding plate 39 to move upwards, the second through grooves 310 and the first through grooves 33 are staggered with each other, so that the water absorption sponge 32 is insulated, the water absorption sponge 32 is prevented from absorbing the heat generated by the heating fins 21, and the heating effect of the heating fins 21 on the reactor main body 13 and the reaction gas is influenced.
The using method comprises the following steps: by arranging the temperature control mechanism 2, when the temperature inside the reactor main body 13 is too high and needs to be reduced, cold water is introduced into the water inlet pipe 15, the cold water enters the through hole 14 from the water inlet pipe 15 to circularly flow, so that the heat inside the heat absorbing plate 12 is absorbed, then flows out from the water outlet pipe 16, and simultaneously is introduced into the water inlet ends of the first spiral pipe 22 and the second spiral pipe 23, the cold water circularly flows along the interiors of the first spiral pipe 22 and the second spiral pipe 23, so that the heat inside the heating fin 21 is absorbed, and finally is discharged from the water outlet ends of the first spiral pipe 22 and the second spiral pipe 23, thereby achieving the purpose of exchanging heat generated inside the reactor main body 13, achieving the effect of temperature reduction, if the temperature inside the reactor main body 13 is lower, the water supply operation of the first spiral pipe 22, the second spiral pipe 23 and the water inlet pipe 15 can be stopped, and the heating fin 21 is electrified and heated, the heat of the heating fins 21 is transferred to the reactor main body 13 through the heat absorbing plate 12, the temperature of the reactor main body 13 is raised, through the arrangement of the gas conveying pipe 24 and the mutual matching use with the heating fins 21, before the reaction gas is introduced into the reactor main body 13, the heating fins 21 are firstly electrified and heated, then the reaction gas is introduced into the gas conveying pipe 24 from the gas inlet end, the reaction gas flows along the inside of the gas conveying pipe 24 and absorbs the heat generated by the heating fins 21, so as to achieve the preheating purpose, the reaction gas after temperature rise finally flows into the reactor main body 13, through the filling of the water absorption sponge 32 in the protection plate 31, the cold water in the water tank 17 is absorbed by the water absorption sponge 32, the cold water absorbs the heat emitted by the heating fins 21, thereby evaporation and heat absorption are generated, the heat is taken away, the temperature reduction effect of the device is further improved, when the heating fins 21 are electrified and heated, the accessible starts electric telescopic handle 37 and stretches out, makes electric telescopic handle 37 drive lifter plate 38 and thermal-insulated slide 39 rebound, makes second logical groove 310 and first logical groove 33 crisscross each other to it is thermal-insulated to absorb water sponge 32, prevents to absorb the heat that heating fin 21 produced to water sponge 32.
The electric elements in the document are electrically connected with an external main controller and 220V mains supply through a transformer, the main controller can be a conventional known device controlled by a computer and the like, the product model provided by the invention is only used according to the structural characteristics of the product, the product can be adjusted and modified after being purchased, so that the product is more matched with and accords with the technical scheme of the invention, the product model is a technical scheme of the optimal application of the technical scheme, the product model can be replaced and modified according to the required technical parameters, and the product model is familiar to the technical personnel in the field, so that the technical scheme provided by the invention can clearly obtain the corresponding use effect.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. The utility model provides a shell and tube heat exchanger and ft synthesis slurry bed reactor, includes base (1), its characterized in that: the reactor is characterized in that a water tank (17) is fixedly connected to the outer surface of the upper end of the base (1), a fixing bottom plate (11) is fixedly connected to the outer surface of the upper end of the water tank (17), a heat absorbing plate (12) is fixedly connected to the outer surface of the upper end of the fixing bottom plate (11), a through hole (14) is formed in the heat absorbing plate (12), a water inlet pipe (15) is fixedly connected to one end of the through hole (14), a water outlet pipe (16) is fixedly connected to the other end of the through hole (14), a reactor main body (13) is fixedly connected to the inner annular surface of the heat absorbing plate (12), and a temperature control mechanism (2) is fixedly connected to the outer annular surface of the reactor main body (13).
2. The tube type heat exchanger and Fischer-Tropsch synthesis slurry bed reactor of claim 1, wherein: the temperature control mechanism (2) comprises a heating fin (21), a first spiral tube (22) and a second spiral tube (23), the heating fin (21) is fixedly connected to the annular outer surface of the heat absorbing plate (12), the first spiral tube (22) is connected to one side, close to the heat absorbing plate (12), of the inside of the heating fin (21) in a penetrating mode, the second spiral tube (23) is connected to the position, close to the outer side of the first spiral tube (22), of the inside of the heating fin (21) in a penetrating mode, one end of the first spiral tube (22) and one end of the second spiral tube (23) are water inlet ends, and the other ends of the first spiral tube and the second spiral tube are water outlet ends.
3. The shell and tube heat exchanger and fischer-tropsch synthesis slurry bed reactor of claim 2, wherein: the position that the inside of heating fin (21) is close to the second solenoid (23) outside runs through and is connected with gas-supply pipe (24), the one end of gas-supply pipe (24) and the upper end surface central point of reactor main part (13) put fixed connection, and its other end is the inlet end.
4. The tube type heat exchanger and Fischer-Tropsch synthesis slurry bed reactor of claim 3, characterized in that: the through hole (14) is designed to be in an annular spiral structure so as to increase the contact area between the through hole and the heat absorbing plate (12), and the first spiral pipe (22), the second spiral pipe (23) and the air conveying pipe (24) are designed to be in a U-shaped spiral structure so as to increase the contact area between the first spiral pipe, the second spiral pipe and the heating fin (21).
5. The tube type heat exchanger and Fischer-Tropsch synthesis slurry bed reactor of claim 4, wherein: the heat absorbing plate (12) and the heating fins (21) are made of aluminum alloy materials, and have good heat absorbing performance.
6. The tube type heat exchanger and Fischer-Tropsch synthesis slurry bed reactor of claim 1, wherein: the outer surface of the upper end of the base (1) is fixedly connected with a protection mechanism (3);
protection machanism (3) are including guard plate (31), guard plate (31) fixed connection is in the upper end surface border position of water tank (17), the inside packing of water tank (17) has cold water.
7. The tube type heat exchanger and Fischer-Tropsch synthesis slurry bed reactor of claim 6, wherein: the utility model discloses a water tank, including guard plate (31), the inside packing of guard plate (31) has water-absorbing sponge (32), the lower extreme of water-absorbing sponge (32) runs through water tank (17) and extends to the internal surface bottom of water tank (17), the first logical groove of a plurality of (33) has been seted up to the surface of guard plate (31), PMKD (11) fixed connection is close to the inboard position of guard plate (31) in the upper end surface of water tank (17).
8. The tube type heat exchanger and Fischer-Tropsch synthesis slurry bed reactor of claim 7, wherein: the annular inner surface of the first through groove (33) is fixedly connected with a dustproof net (34) to prevent the water absorption sponge (32) from being stained with dust.
9. The tube type heat exchanger and Fischer-Tropsch synthesis slurry bed reactor of claim 8, wherein: a water supply pipe (35) is fixedly connected to one side of the outer surface of the lower end of the water tank (17), and a water level sensor (36) is arranged on the annular inner surface of the water tank (17).
10. The tube type heat exchanger and Fischer-Tropsch synthesis slurry bed reactor of claim 7, wherein: the utility model discloses a thermal-insulated slide board, including the upper end of water tank (17), the upper end surface of water tank (17) is located a plurality of electric telescopic handle (37) of the even fixedly connected with in position of guard plate (31) inboard, the outer fixed surface in upper end of electric telescopic handle (37) is connected with lifter plate (38), the thermal-insulated slide board (39) of upper end surface border position fixedly connected with of lifter plate (38), the surface both ends and thermal-insulated slide board (39) sliding connection of guard plate (31), a plurality of second leads to groove (310) has been seted up to the surface of thermal-insulated slide board (39) near the position of first logical groove (33).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202210402865.5A CN114950280A (en) | 2022-04-18 | 2022-04-18 | Shell and tube heat exchanger and ft synthesis slurry bed reactor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210402865.5A CN114950280A (en) | 2022-04-18 | 2022-04-18 | Shell and tube heat exchanger and ft synthesis slurry bed reactor |
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| CN202210402865.5A Pending CN114950280A (en) | 2022-04-18 | 2022-04-18 | Shell and tube heat exchanger and ft synthesis slurry bed reactor |
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