CN104307440A - High-temperature reactor with cooling water pipe and chemical system - Google Patents
High-temperature reactor with cooling water pipe and chemical system Download PDFInfo
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- CN104307440A CN104307440A CN201410594220.1A CN201410594220A CN104307440A CN 104307440 A CN104307440 A CN 104307440A CN 201410594220 A CN201410594220 A CN 201410594220A CN 104307440 A CN104307440 A CN 104307440A
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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
- B01J8/02—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with stationary particles, e.g. in fixed beds
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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
- B01J8/008—Details of the reactor or of the particulate material; Processes to increase or to retard the rate of reaction
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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
- B01J2208/00026—Controlling or regulating the heat exchange system
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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
- B01J2208/02—Processes carried out in the presence of solid particles; Reactors therefor with stationary particles
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Abstract
The invention discloses a high-temperature reactor with a cooling water pipe and a chemical system. The chemical system comprises the high-temperature reactor with the cooling water pipe, a steam pocket and a circulating pump, wherein the high-temperature reactor with the cooling water pipe comprises a shell and an inner barrel is arranged in the shell; a gap air flow channel and a water cooling pipe are arranged between the outer wall of the inner barrel and the inner wall of the shell; the inner barrel is internally provided with a catalyst bed layer and a heat exchanging pipe from top to bottom; an inner barrel air inlet and an inner barrel air outlet, which are communicated with the inner part of the inner barrel, are formed in the wall of the inner barrel; the height of the inner barrel air inlet is greater than the height of the bottom of the catalyst bed layer; the height of the inner barrel air outlet is smaller than the height of the bottom of the heat exchanging pipe; a shell air inlet and a shell air outlet are formed in the bottom of the shell; the shell air inlet is communicated with the inner barrel air inlet by the gap air flow channel; and the shell air outlet is communicated with the inner barrel air outlet. The high-temperature reactor with the cooling water pipe has the advantages of small volume, simple structure, high safety and low cost.
Description
Technical field
The present invention relates to Chemical Engineering Technology, particularly relate to a kind of high-temperature reactor with cooling water pipe and chemical system.
Background technology
In chemical field, a lot of chemical reaction is the strong exothermal reaction (strong exothermal reaction typically refers to the reaction that enthalpy is greater than 200kJ/mol) needing to carry out in high temperature environments, such as: methanation reaction.Because these strong exothermal reactions have usually, reaction is violent, thermal discharge is large, reaction temperature high, and therefore in prior art, these strong exothermal reactions carry out mostly in the high-temperature reactor with refractory liner.But at least there is following shortcoming in high-temperature reactor of the prior art:
(1) in order to avoid strong exothermal reaction damage high-temperature reactor, the refractory liner of existing high-temperature reactor has sizable thickness usually, and this just makes the overall volume of existing high-temperature reactor very large, is unfavorable for installing, dismantling.
(2) after standing equipment vibrations and/or high temperature variation, easily there is be full of cracks in the refractory liner of existing high-temperature reactor, come off equivalent damage; Once damage appears in refractory liner, strong exothermal reaction directly will damage the shell of high-temperature reactor, and then may cause security incident.
(3) because the temperature of high-temperature reactor when carrying out strong exothermal reaction is too high, therefore production equipment in the following process flow process coordinating high-temperature reactor to use (such as: the outlet conduit of high-temperature reactor, for reclaiming the waste heat boiler etc. of heat) also needs to have great resistance to elevated temperatures, this brings a lot of difficulty just to the type selecting of production equipment in following process flow process and processing and manufacturing, too increases investment and operating cost simultaneously.
Summary of the invention
The object of this invention is to provide high-temperature reactor and the chemical system of the band cooling water pipe that a kind of structure is simple, safe and reliable, cost is low.
The object of the invention is to be achieved through the following technical solutions:
The high-temperature reactor of band cooling water pipe of the present invention, comprises shell, and the inside of described shell is provided with inner core, is provided with gap flow passage and water cooling tube between the outer wall of described inner core and the inwall of shell;
The inside of described inner core is provided with beds and heat exchanger tube from top to bottom, the wall of described inner core is provided with the inner core air inlet and inner core gas outlet that are communicated with the inside of inner core, the place height of described inner core air inlet is higher than the place height of the bottom of described beds, and the place height of described inner core gas outlet is lower than the place height of the bottom of described heat exchanger tube;
The bottom of described shell is provided with housing inlet and shell gas outlet, and described housing inlet is communicated with described inner core air inlet by described gap flow passage, and described shell gas outlet is communicated with described inner core gas outlet.
Chemical system of the present invention, comprises the high-temperature reactor of above-mentioned band cooling water pipe, drum and circulating pump;
The heat exchanger tube water inlet of the high-temperature reactor of described band cooling water pipe is communicated with the delivery port of drum with the delivery port of described circulating pump respectively, the heat exchanger tube delivery port of the high-temperature reactor of this band cooling water pipe is communicated with the water inlet of drum, and the water inlet of described circulating pump is communicated with the delivery port of drum;
Be provided with between described heat exchanger tube water inlet and the delivery port of described drum between the water inlet of moisturizing water inlet and/or described circulating pump and the delivery port of drum and be provided with moisturizing water inlet.
As seen from the above technical solution provided by the invention, the high-temperature reactor of the band cooling water pipe that the embodiment of the present invention provides and chemical system, because high-temperature reactor is provided with gap flow passage and water cooling tube, the temperature of reactor inner tank theca effectively can be reduced by the composite heat-exchange technology adopting air cooling wall and water cooling tube heat exchange to combine, make reactor inner core without the need to using refractory material, shell does not bear high temperature, reduce the volume of high-temperature reactor, avoid traditional reactor come off because of refractory material or damage and the damage caused reactor and the security incident that may cause.Meanwhile, can effectively ensure to enter the constant of beds unstripped gas temperature by composite heat-exchange, make reaction temperature more easy to control, operation is simple, safe and reliable.In addition, beds and heat exchanger tube have all been arranged on the inside of inner core by this high-temperature reactor, carry out moving heat from inside reactor, and the temperature that this high-temperature reactor can be made to discharge material significantly reduces (normally caning be controlled between 100 ~ 300 DEG C).Thus create advantage for the type selecting of production equipment in follow-up flow process and processing and manufacturing, and effectively can reduce equipment investment.
Accompanying drawing explanation
The structural representation of the high-temperature reactor of the band cooling water pipe that Fig. 1 provides for the embodiment of the present invention one;
The structural representation of the high-temperature reactor of the band cooling water pipe that Fig. 2 provides for the embodiment of the present invention two;
The structural representation of the chemical system that Fig. 3 provides for the embodiment of the present invention.
Detailed description of the invention
To be described in further detail the embodiment of the present invention below.
First it should be noted that, described in present specification " on ", D score, " top ", the word in the expression such as " end " orientation, be only in order to the clear each parts describing out the embodiment of the present invention between relative position relation, based on a kind of expression form of the embodiment of the present invention when adopting the placement orientation shown in accompanying drawing 1 and accompanying drawing 2, it is not the absolute positional relation of all embodiments of the present invention, therefore this is not construed as limiting the invention, one of ordinary skill in the art will appreciate that, when the placement orientation of the embodiment of the present invention changes, corresponding absolute positional relation also will change, but this still belongs to protection scope of the present invention.Term "and/or" described in present specification refers to that any or all that comprise one or more project of listing be associated may combine.High-temperature reactor provided by the present invention is mainly used in carrying out strong exothermal reaction between gas, such as: the methanation reaction that may be used for temperatures as high 750 DEG C.
The high-temperature reactor of band cooling water pipe of the present invention, preferably detailed description of the invention is as shown in Figure 1 and Figure 2 for it:
Comprise shell 1, the inside of described shell 1 is provided with inner core 2, is provided with gap flow passage 3 and water cooling tube 7 between the outer wall of described inner core 2 and the inwall of shell 1;
The inside of described inner core 2 is provided with beds 5 and heat exchanger tube 6 from top to bottom, the wall of described inner core 2 is provided with the inner core air inlet 21 and inner core gas outlet 22 that are communicated with the inside of inner core 2, the place height of described inner core air inlet 21 is higher than the place height of the bottom of described beds 5, and the place height of described inner core gas outlet 22 is lower than the place height of the bottom of described heat exchanger tube 6;
The bottom of described shell 1 is provided with housing inlet 11 and shell gas outlet 12, and described housing inlet 11 is communicated with described inner core air inlet 21 by described gap flow passage 3, and described shell gas outlet 12 is communicated with described inner core gas outlet 22.
The inside of described inner core 2 is provided with end socket 4 or stay pipe or gripper shoe, the interior separation of described inner core 2 is inner core upper chamber 23 and inner core lower cavity 24 by described end socket 4 or stay pipe or gripper shoe, and this end socket 4 or stay pipe or gripper shoe are provided with the air communicating pipe 41 described inner core upper chamber 23 be communicated with inner core lower cavity 24;
Described beds 5 is located in described inner core upper chamber 23, and described heat exchanger tube 6 is located in described inner core lower cavity 24.
The sidewall of shell 1 is provided with heat exchanger tube water inlet 61, and this heat exchanger tube water inlet 61 is communicated with water cooling tube 7 and the heat exchanger tube 6 be located in described inner core lower cavity 24 through described shell 1;
The top of described shell 1 is provided with heat exchanger tube delivery port 62, described end socket 4 or stay pipe or gripper shoe are water leg structure, be located at heat exchanger tube 6 in described inner core lower cavity 24 and described end socket 4 or stay pipe or gripper shoe to be communicated with, and be communicated with described heat exchanger tube delivery port 62 by end socket 4 or stay pipe or gripper shoe, the coolant outlet of described water cooling tube 7 is also communicated with described heat exchanger tube delivery port 62.
The inside of described shell 1 is provided with support member 13, and described inner core 2 is fixed on the inside of described shell 1 by support member 13.
Also comprise temperature measuring equipment 8, this temperature measuring equipment 8 extend into the inside of described inner core 2 by the top of described shell 1.
Described inner core air inlet 21 comprises multiple air admission hole, and these air admission holes are distributed on the top of described inner core 2 and/or the sidewall of the inner core 2 corresponding with described inner core upper chamber 23.
Described air communicating pipe 41 is provided with multiple passage, and on the two ends that these passages are distributed in air communicating pipe 41 and sidewall, and at least one passage is positioned at described inner core upper chamber 23, and at least one passage is positioned at described inner core lower cavity 24;
Place, the top height of this air communicating pipe 41 is higher than place, the bottom height of described beds 5, and lower than place, the top height of beds 5, between the top of this air communicating pipe 41 and the top of described beds 5, at least there is the difference in height of 10mm;
Place, the bottom height of this air communicating pipe 41 is higher than place, the top height of described heat exchanger tube 6.
Also comprise calandria 9, this calandria 9 is extend into the thermal treatment zone 25 being located at described inner core 2 inside by the top of described shell 1, and this thermal treatment zone 25 is positioned at the top of described beds 5;
The top of described inner core 2 is located at by described inner core air inlet 21.
Described air communicating pipe 41 is provided with at least two passages, and at least one passage is positioned at inner core upper chamber 23, at least one passage is positioned at inner core lower cavity 24;
The length that the top of this air communicating pipe 41 extend into beds 5 is at most 300mm;
Place, the bottom height of this air communicating pipe 41 is higher than place, the top height of described heat exchanger tube 6.
Chemical system of the present invention, preferably detailed description of the invention is as shown in Figure 3 for it:
Comprise the high-temperature reactor A of above-mentioned band cooling water pipe, drum B and circulating pump C;
The heat exchanger tube water inlet 61 of the high-temperature reactor A of described band cooling water pipe is communicated with the delivery port of drum B with the delivery port of described circulating pump C respectively, the heat exchanger tube delivery port 62 of the high-temperature reactor A of this band cooling water pipe is communicated with the water inlet of drum B, and the water inlet of described circulating pump C is communicated with the delivery port of drum B;
Be provided with between the delivery port of described heat exchanger tube water inlet 61 and described drum B between the water inlet of moisturizing water inlet and/or described circulating pump C and the delivery port of drum B and be provided with moisturizing water inlet.
The high-temperature reactor of band cooling water pipe of the present invention and chemical system, the composite heat-exchange technology that high-temperature reactor adopts air cooling wall and water cooling tube heat exchange to combine effectively reduces the temperature of reactor inner tank theca, make reactor inner core without the need to using refractory material, shell does not bear high temperature, reduce the volume of high-temperature reactor, avoid traditional reactor and come off because of refractory material or damage and the damage that reactor is caused and the security incident that may cause.Meanwhile, can effectively ensure to enter the constant of beds unstripped gas temperature by composite heat-exchange, make reaction temperature more easy to control, operation is simple, safe and reliable.In addition, this high-temperature reactor carries out moving heat from inside reactor, this high-temperature reactor can be made to discharge the temperature of material and significantly reduce, thus creates advantage for the type selecting of production equipment in follow-up flow process and processing and manufacturing, and effectively can reduce equipment investment.
Below the high-temperature reactor that the embodiment of the present invention provides is described in detail.
As depicted in figs. 1 and 2, a kind of high-temperature reactor with cooling water pipe, its concrete structure can comprise: shell 1, inner core 2 and water cooling tube 7; Inner core 2 is located at the inside of shell 1, and is provided with gap flow passage 3 and water cooling tube 7 between the inwall of the outer wall of inner core 2 and shell 1;
The inside of inner core 2 is provided with beds 5 and heat exchanger tube 6 from top to bottom; Inner core 2 is provided with the inner core air inlet 21 and inner core gas outlet 22 that are communicated with the inside of inner core 2; The place height of inner core air inlet 21 is higher than the place height of the bottom of beds 5; The place height of inner core gas outlet 22 is lower than the place height of the bottom of heat exchanger tube 6;
The bottom of shell 1 is provided with housing inlet 11 and shell gas outlet 12; Housing inlet 11 is communicated with inner core air inlet 21 by gap flow passage 3; Shell gas outlet 12 is communicated with inner core gas outlet 22.
The import of water cooling tube 7 and outlet are connected with the inlet tube of heat exchanger tube 6 and outlet respectively.
Particularly, the specific works principle of the high-temperature reactor of this band cooling water pipe is as follows:
(1) gas operation logic: (unstrpped gas is a kind of mist to unstrpped gas, wherein at least contain all gas carried out required for same strong exothermal reaction, such as: in methanation reaction, hydrogen and carbon monoxide can be at least comprised in this unstrpped gas, or, in this unstrpped gas, can at least comprise hydrogen and carbon dioxide) and the inside of shell 1 is entered into by housing inlet 11; Because housing inlet 11 is communicated with the bottom of gap flow passage 3, the unstrpped gas therefore entering the inside of shell 1 upwards can only be flowed by gap flow passage 3; In gap flow passage 3, outer wall and the water cooling tube 7 of unstrpped gas and inner core 2 carry out composite heat-exchange, constant with what ensure into beds unstripped gas temperature; When unstrpped gas flows to the inner core air inlet 21 be communicated with the top of gap flow passage 3, unstripped gas knows from experience the inside being flow into inner core 2 by inner core air inlet 21; Because the place height of inner core air inlet 21 is higher than the place height of the bottom of beds 5, therefore after unstrpped gas flows into the inside of inner core 2, can contact with beds 5, and strong exothermal reaction can be there is under the catalytic action of beds 5, thus generate the very high gas product of temperature; Gas product can flow downward gradually in the inside of inner core 2, and flow through the outside of heat exchanger tube 6, because heat exchanger tube 6 inside is the cooling water that temperature is low, therefore when gas product flows through heat exchanger tube 6, gas product can with the cooling water generation exchange heat of heat exchanger tube 6 inside, thus gas product is significantly lowered the temperature; Gas product successively through inner core gas outlet 22 and shell gas outlet 12, and can be discharged to the outside of this high-temperature reactor after cooling, namely completes the whole service process of gas in this high-temperature reactor.
(2) water-cooled principle: the inside of heat exchanger tube 6 is provided with the low cooling water of temperature, when gas product flows through heat exchanger tube 6 outside, cooling water can carry out exchange heat with gas product, thus the temperature (or small part cooling water is vaporized) of cooling water can be raised, and reduce the temperature (i.e. water-cooled) of gas product; In order to keep, to gas product, there is good cooling effect, the low cooling water of new temperature can be filled into the inside of heat exchanger tube 6, and the cooling water after intensification can be discharged from the inside of heat exchanger tube 6; In actual applications, when using high-temperature reactor provided by the present invention to carry out strong exothermal reaction, the discharge of cooling water and Renewal process can carry out in real time, thus can ensure that this heat exchanger tube 6 pairs of gas products have good cooling effect, the temperature of gas product can be made to decline to a great extent, for the type selecting of follow-up flow process production equipment and processing and manufacturing create advantage.
(3) composite heat-exchange principle: be the temperature reducing inner core 2 outer wall, what ensure into reactor feedstocks temperature degree is constant simultaneously, adopts the mode that air cooling wall (gas-gas heat exchange) and water cooling tube (aqueous vapor heat exchange) heat exchange combine.There is strong exothermal reaction in the beds 5 that unstrpped gas is being arranged in inner core 2 inside, causes inner core 2 inner self-catalysis agent bed 5 and following portion temperature all higher than the outside of inner core 2; Outside due to inner core 2 is gap flow passage 3, and in gap flow passage 3 flowing be just entered the lower unstrpped gas of the temperature of shell 1 inside, therefore this part unstrpped gas can carry out exchange heat with inner core 2, thus the temperature of this part unstrpped gas is raised, and the temperature of inner core 2 outer wall is made to decline (i.e. air cooling wall); The rising of unstrpped gas temperature is conducive to unstrpped gas makes the catalyst in beds 5 reach light-off temperature, to ensure normally carrying out of strong exothermal reaction when running into beds 5.Be provided with water cooling tube 7 between inner core 2 and shell 1 simultaneously, cooling water temperature is low and constant, also carry out heat exchange (in heat transfer process, small part cooling water is vaporized) with the unstrpped gas entering reactor simultaneously, effectively can ensure constant (the water cooling tube heat exchange) into beds unstripped gas temperature, thus make the reaction temperature of beds be more prone to control, operate more safe and reliable.After adopting composite heat-exchange, inner core 2 not only can being made without the need to arranging refractory material or water-cooling wall, reducing the heatproof requirement of inner core 2 when selection, extend the service life of inner core 2, and it is constant to ensure into beds unstrpped gas temperature, thus the carrying out enabling reaction controlled smoothly.
Wherein, in the high-temperature reactor of this band cooling water pipe, the specific implementation of each parts can comprise:
(1) inside of inner core 2 is provided with end socket 4 (or stay pipe, gripper shoe); The interior separation of inner core 2 is inner core upper chamber 23 and inner core lower cavity 24 by this end socket 4 (or stay pipe, gripper shoe), and beds 5 is located in inner core upper chamber 23, and heat exchanger tube 6 is located in inner core lower cavity 24; This end socket 4 (or stay pipe, gripper shoe) can be played a supporting role to the beds 5 in inner core upper chamber 23; In actual applications, this end socket 4 (or stay pipe, gripper shoe) preferably adopts water leg structure, namely can flow cooling water (such as: the mode be communicated with heat exchanger tube 6 can be adopted to realize) in the inside of end socket 4 (or stay pipe, gripper shoe), thus can avoid end socket 4 (or stay pipe, gripper shoe) be subject to strong exothermal reaction produce the impact of high temperature.This end socket 4 (or stay pipe, gripper shoe) can be provided with the air communicating pipe 41 inner core upper chamber 23 be communicated with inner core lower cavity 24, flow in inner core lower cavity 24 by air communicating pipe 41 to enable the gas product reacting generation in inner core upper chamber 23.
(2) be provided with water cooling tube 7 between shell 1 and inner core 2, cooling water temperature is constant, can carry out exchange heat with the unstrpped gas flowing through gap flow passage 3.
(3) sidewall of shell 1 can be provided with heat exchanger tube water inlet 61; This heat exchanger tube water inlet 61 can be communicated with water cooling tube 7 and the heat exchanger tube 6 be located in inner core 2 lower cavity 24 through shell 1; The top of shell 1 can be provided with heat exchanger tube delivery port 62; The heat exchanger tube 6 be located in inner core lower cavity 24 can be communicated with end socket 4 (or stay pipe, gripper shoe), and is communicated with heat exchanger tube delivery port 62 by end socket 4 (or stay pipe, gripper shoe).The delivery port of water cooling tube 7 is also communicated with heat exchanger tube delivery port 62.The cooling water that temperature is low can flow into heat exchanger tube 6 and water cooling tube 7 from heat exchanger tube water inlet 61, and the cooling water that temperature raises rear (or after components vaporize) can be discharged by heat exchanger tube delivery port 62; In order to realize the Natural Circulation of cooling water, and driving force of heat transfer is maximized, the cooling water flowing through heat exchanger tube 6 in this high-temperature reactor preferably adopts full reflux type from bottom to top.
(4) inside of shell 1 is provided with support member 13; Inner core 2 is arranged at the inside of shell 1 by support member 13.
(5) this high-temperature reactor can also comprise: temperature measuring equipment 8; This temperature measuring equipment 8 is extend into the inside of inner core 2 by the top of shell 1, to measure the reaction temperature of this high-temperature reactor.
Visible, this high-temperature reactor at least possesses following advantage:
(1) high-temperature reactor of band cooling water pipe provided by the present invention is provided with gap flow passage 3 and water cooling tube 7, the temperature of reactor inner core 2 outer wall effectively can be reduced by the composite heat-exchange technology adopting air cooling wall and water cooling tube heat exchange to combine, make reactor inner core 2 without the need to using refractory material, shell 1 does not bear high temperature, reduce the volume of high-temperature reactor, reduce the heatproof requirement of reactor when selection, avoid traditional reactor and come off because of refractory material or the damage that damages and reactor is caused and the security incident that may cause.
(2) can effectively ensure to enter the constant of beds unstripped gas temperature by composite heat-exchange, ensure carrying out smoothly of reaction, and reaction temperature is more easily controlled, operation is simple, safe and reliable.
(3) beds 5 and heat exchanger tube 6 are all arranged on the inside of inner core 2 by the high-temperature reactor of this band cooling water pipe, move heat from inside reactor to reaction, the temperature that this high-temperature reactor can be made to discharge material significantly reduces (normally caning be controlled between 100 ~ 300 DEG C).Thus create advantage for the type selecting of production equipment in follow-up flow process and processing and manufacturing, and effectively can reduce equipment investment.
For making goal of the invention of the present invention, technical scheme and beneficial effect clearly, below by example, and in conjunction with respective drawings, the embodiment of the present invention is described in further detail.
Embodiment one
As shown in Figure 1, a kind of high-temperature reactor with cooling water pipe, compared with technique scheme, this embodiment one more specifically have employed following technical scheme:
(1) the inner core air inlet 21 described in comprises multiple air admission hole; These air admission holes are distributed in the top of inner core 2, and/or, on the sidewall of the inner core 2 corresponding with inner core upper chamber 23; In actual applications, the top of inner core 2 and the sidewall of the inner core 2 corresponding with inner core upper chamber 23 are preferably equipped with air admission hole, thus enable unstrpped gas from axially entering into the inside of inner core 2 with radial multiple positions, and all can contact with beds 5.
(2) air communicating pipe 41 described in is provided with multiple passage; On the two ends that these passages are distributed in air communicating pipe 41 and sidewall, and at least one passage is positioned at inner core upper chamber 23, at least one passage is positioned at inner core lower cavity 24; In actual applications, this air communicating pipe 41 is preferably one, and be located at the centre of end socket 4 (or stay pipe, gripper shoe), the two ends of air communicating pipe 41 and sidewall all distribute multiple passage, thus enable reacted gas product enter into air communicating pipe 41 equably.
Place, the top height of this air communicating pipe 41 higher than place, the bottom height of beds 5, and lower than place, the top height of beds 5; The difference in height of 10mm is at least there is between the top of this air communicating pipe 41 and the top of beds 5, this can not only be avoided unstripped gas unreacted just directly to enter in air communicating pipe 41, and reacted gas product can be made to enter into air communicating pipe 41 equably, thus reduce the resistance drop of this high-temperature reactor, being easy to maximize uses.Place, the bottom height of this air communicating pipe 41 can lower than place, the top height of heat exchanger tube 6, but preferably higher than place, the top height of heat exchanger tube 6, in actual applications, the length that the bottom of this air communicating pipe 41 extend into inner core lower cavity 24 is preferably as far as possible short, thus can ensure that reacted gas product fully can carry out exchange heat with heat exchanger tube 6.
Particularly, the high-temperature reactor according to the band cooling water pipe in the present embodiment carries out methanation reaction, then its concrete flow process is as follows:
By 150 ~ 300 DEG C, (this unstrpped gas is the mist at least comprising hydrogen and carbon dioxide for the unstrpped gas of 0.5 ~ 10MPa, or, at least comprise the mist of hydrogen and carbon monoxide) and the inside of shell 1 is input to from housing inlet 11; This unstrpped gas is upwards flowed by gap flow passage 3, in gap flow passage 3, outer wall and the water cooling tube 7 of unstrpped gas and inner core 2 carry out gas gas, aqueous vapor composite heat-exchange, thus reduce the outside wall temperature of inner core 2, and this unstrpped gas temperature is raised or reduces and upwards flow with stationary temperature (depending on water cooling tube temperature); When unstrpped gas flows to when being located at the air admission hole 21 at inner core 2 sidewall or inner core 2 top, unstripped gas know from experience by air admission hole 21 from axially and radial multiple positions enter into the inside of inner core 2; The unstripped gas cognition entering the inside of inner core 2 contacts with beds 5, and under the catalytic action of beds 5, strong exothermal reaction occurs, and generate gas product (namely for methane), the reaction temperature of this strong exothermal reaction can up to 750 DEG C; Gas product enters into air communicating pipe 41 equably, and enters into inner core lower cavity 24 by air communicating pipe 41; The gas product entering inner core lower cavity 24 can flow through the outside of heat exchanger tube 6, and carries out exchange heat with heat exchanger tube 6; After carrying out exchange heat with heat exchanger tube 6, greenhouse cooling to 180 ~ 300 DEG C of gas product, then successively through inner core gas outlet 22 and shell gas outlet 12, and are discharged to the outside of this high-temperature reactor, namely complete the running of whole methanation reaction.
It should be noted that, because the high-temperature reactor of the band cooling water pipe in the embodiment of the present invention does not comprise heater, the catalyst therefore placed in beds 5 needs to adopt prior art to carry out pre-reduction treatment in advance.
Embodiment two
As shown in Figure 2, a kind of high-temperature reactor with cooling water pipe, compared with embodiment one, this embodiment two more specifically have employed technical schemes different as follows:
(1) top of inner core 2 is located at by inner core air inlet 21; In actual applications, the top of this inner core 2 is exactly preferably a large inner core air inlet 21 on the whole, thus calandria can be set on this high-temperature reactor, and make calandria extend in inner core air inlet 21, enter the temperature of the gas of beds 5 to promote, thus create advantage for the intensification of beds 5 and reduction.
(2) air communicating pipe 41 described in is provided with at least two passages, and at least one passage is positioned at inner core upper chamber 23, at least one passage is positioned at inner core lower cavity 24; In actual applications, this air communicating pipe 41 is preferably four, and be distributed on end socket 4 (or stay pipe, gripper shoe), every root air communicating pipe 41 preferably only has two passages, and be located at the two ends of air communicating pipe 41 respectively, this can make reacted gas product enter into air communicating pipe 41 equably.
The length that the top of this air communicating pipe 41 extend into beds 5 is at most 300mm; In actual applications, this air communicating pipe 41 is in the length of inner core upper chamber 23 should be as far as possible short, and this makes unstrpped gas need just can enter into air communicating pipe 41 through whole beds 5, thus enables the reaction of unstrpped gas more abundant.Place, the bottom height of this air communicating pipe 41 can lower than place, the top height of heat exchanger tube 6, but preferably higher than place, the top height of heat exchanger tube 6, in actual applications, the length that the bottom of this air communicating pipe 41 extend into inner core lower cavity 24 is preferably as far as possible short, thus can ensure that reacted gas product fully can carry out exchange heat with heat exchanger tube 6.
(3) high-temperature reactor of this band cooling water pipe can also comprise: calandria 9; This calandria 9 is extend into the thermal treatment zone 25 being located at inner core 2 inside by the top of shell 1; This thermal treatment zone 25 is positioned at the top of beds 5; In actual applications, if the topside perspective of inner core 2 is a large inner core air inlet 21, so calandria 9 preferably extend into inner core air inlet less than 21, to heat the unstrpped gas entering inner core 2, and then the temperature promoted when unstrpped gas enters beds 5, thus create advantage for the intensification of beds 5 and reduction.
Particularly, the high-temperature reactor according to the band cooling water pipe in the present embodiment carries out methanation reaction, then its concrete flow process is as follows:
By 150 ~ 300 DEG C, (this unstrpped gas is the mist at least comprising hydrogen and carbon dioxide for the unstrpped gas of 0.5 ~ 10MPa, or, at least comprise the mist of hydrogen and carbon monoxide) and the inside of shell 1 is input to from housing inlet 11; This unstrpped gas is upwards flowed by gap flow passage 3, in gap flow passage 3, outer wall and the water cooling tube 7 of unstrpped gas and inner core 2 carry out gas gas, aqueous vapor composite heat-exchange, thus unstrpped gas temperature are raised or reduces and upwards flow with stationary temperature (depending on water cooling tube temperature); When unstrpped gas flows to when being located at the inner core air inlet 21 at inner core 2 top, unstripped gas is known from experience by inner core air inlet 21 from the inside axially entering into inner core 2; The unstripped gas cognition entering the inside of inner core 2 contacts with beds 5, and under the catalytic action of beds 5, strong exothermal reaction occurs, and generates gas product (namely for methane); The temperature of the gas product just generated can up to 750 DEG C; This high-temperature product gas enters into air communicating pipe 41, and enters into inner core lower cavity 24 by air communicating pipe 41; The gas product entering inner core lower cavity 24 can flow through the outside of heat exchanger tube 6, and carries out exchange heat with heat exchanger tube 6; Carry out exchange heat with heat exchanger tube 6, greenhouse cooling to 180 ~ 300 DEG C of gas product, then successively through inner core gas outlet 22 and shell gas outlet 12, and be discharged to the outside of this high-temperature reactor, namely complete the running of whole methanation reaction.
It should be noted that, because the high-temperature reactor of the band cooling water pipe in the embodiment of the present invention can heat, therefore the catalyst placed in beds 5 can without pre-reduction treatment, also pre-reduction treatment can be through, meanwhile, the gas temperature entering beds 5 reaches 600 DEG C by the heating of calandria 9.
Except technique scheme, the embodiment of the present invention additionally provides a kind of chemical system, and as shown in Figure 3, its concrete structure can comprise: high-temperature reactor A, the drum B of the band cooling water pipe described in technique scheme and circulating pump C;
Unstripped gas 101 enters gap flow passage 3 after flowing into this high-temperature reactor A by housing inlet 11, in gap flow passage 3, the bottom-up flowing of unstripped gas also carries out gas gas, aqueous vapor composite heat-exchange with the outer wall of inner core 2 and water cooling tube 7, significantly reduce the outside wall temperature of reactor inner core 2 on the one hand, make unstripped gas temperature raise on the other hand or be reduced to the numerical value (depending on water cooling tube temperature) of a certain relative constancy; Unstripped gas enters beds 5 by the top of inner core 2 afterwards, and under the catalytic action of catalyst, strong exothermal reaction occurs, the gas product 102 after reaction of formation.The air communicating pipe that this gas product is arranged on end socket 4 enters heat exchanger tube 6, after carrying out heat exchange cooling, discharges after passing the bottom of inner core 2 and shell 1 successively with heat exchanger tube 6.
The heat exchanger tube water inlet 61 of this high-temperature reactor A is communicated with the delivery port of drum B with the delivery port of circulating pump C respectively; The heat exchanger tube delivery port 62 of the high-temperature reactor A of this band cooling water pipe is communicated with the water inlet of drum B; The water inlet of circulating pump C is communicated with the delivery port of drum B;
Moisturizing water inlet is provided with between the delivery port of heat exchanger tube water inlet 61 and drum B, and/or, be provided with moisturizing water inlet between the water inlet of circulating pump C and the delivery port of drum B.
Particularly, cooling water flows into the high-temperature reactor A of this band cooling water pipe by heat exchanger tube water inlet 61, after carrying out exchange heat with reacted gas product 102 and the unstrpped gas that flows through gap flow passage 3, the cooling water of formation temperature higher (or part is vaporized); Cooling water flow in drum B via the water inlet of heat exchanger tube delivery port 62 and drum B successively; In drum B, the cooling water that part has been vaporized forms steam (can be used as byproduct), and discharge from the venthole of drum B, the cooling water of not vaporizing flows out from the delivery port of drum B; The cooling water flowed out from the delivery port of drum B directly flow back into heat exchanger tube water inlet 61, or gets back to heat exchanger tube water inlet 61 by circulating pump C pressurized stream.In order to the not enough problem of cooling water that the steam making up discharge brings, supplement cooling water 104 and can be fed directly to heat exchanger tube water inlet 61 by moisturizing water inlet, or, supplement cooling water 104 can flow into circulating pump C inlet port by moisturizing water inlet, then flow into heat exchanger tube water inlet 61 by circulating pump C.
Visible, the chemical system that the embodiment of the present invention provides achieves the heat exchange of the high-temperature reactor A of this band cooling water pipe and moves thermal process, cooling water can adopt circulating pump C pressurized circulation in start-up, can circulating pump C out of service in the normal production phase, make cooling water completely by Natural Circulation, this can effective economize energy.This chemical system can ensure to enter the constant of reactor catalyst bed unstripped gas temperature, high-temperature reactor can be made again to discharge the temperature of gas product and decline to a great extent, thus creates advantage for the type selecting of follow-up flow process production equipment and processing and manufacturing.
The above; be only the present invention's preferably detailed description of the invention, but protection scope of the present invention is not limited thereto, is anyly familiar with those skilled in the art in the technical scope that the present invention discloses; the change that can expect easily or replacement, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of claims.
Claims (10)
1. the high-temperature reactor with cooling water pipe, it is characterized in that, comprise shell (1), the inside of described shell (1) is provided with inner core (2), is provided with gap flow passage (3) and water cooling tube (7) between the outer wall of described inner core (2) and the inwall of shell (1);
The inside of described inner core (2) is provided with beds (5) and heat exchanger tube (6) from top to bottom, the wall of described inner core (2) is provided with the inner core air inlet (21) and inner core gas outlet (22) that are communicated with the inside of inner core (2), the place height of described inner core air inlet (21) is higher than the place height of the bottom of described beds (5), and the place height of described inner core gas outlet (22) is lower than the place height of the bottom of described heat exchanger tube (6);
The bottom of described shell (1) is provided with housing inlet (11) and shell gas outlet (12), described housing inlet (11) is communicated with described inner core air inlet (21) by described gap flow passage (3), and described shell gas outlet (12) is communicated with described inner core gas outlet (22).
2. the high-temperature reactor of band cooling water pipe according to claim 1, it is characterized in that, the inside of described inner core (2) is provided with end socket (4) or stay pipe or gripper shoe, the interior separation of described inner core (2) is inner core upper chamber (23) and inner core lower cavity (24) by described end socket (4) or stay pipe or gripper shoe, and this end socket (4) or stay pipe or gripper shoe are provided with the air communicating pipe (41) described inner core upper chamber (23) be communicated with inner core lower cavity (24);
Described beds (5) is located in described inner core upper chamber (23), and described heat exchanger tube (6) is located in described inner core lower cavity (24).
3. the high-temperature reactor of band cooling water pipe according to claim 2, it is characterized in that, the sidewall of shell (1) is provided with heat exchanger tube water inlet (61), and this heat exchanger tube water inlet (61) is communicated with water cooling tube (7) and the heat exchanger tube (6) be located in described inner core lower cavity (24) through described shell (1);
The top of described shell (1) is provided with heat exchanger tube delivery port (62), described end socket (4) or stay pipe or gripper shoe are water leg structure, be located at heat exchanger tube (6) in described inner core lower cavity (24) and described end socket (4) or stay pipe or gripper shoe to be communicated with, and pass through end socket (4) or stay pipe or gripper shoe to be communicated with described heat exchanger tube delivery port (62), the coolant outlet of described water cooling tube (7) is also communicated with described heat exchanger tube delivery port (62).
4. the high-temperature reactor of band cooling water pipe according to claim 3, it is characterized in that, the inside of described shell (1) is provided with support member (13), and described inner core (2) is fixed on the inside of described shell (1) by support member (13).
5. the high-temperature reactor of band cooling water pipe according to claim 4, it is characterized in that, also comprise temperature measuring equipment (8), this temperature measuring equipment (8) extend into the inside of described inner core (2) by the top of described shell (1).
6. the high-temperature reactor of band cooling water pipe according to claim 5, it is characterized in that, described inner core air inlet (21) comprises multiple air admission hole, and these air admission holes are distributed on the top of described inner core (2) and/or the sidewall of the inner core (2) corresponding with described inner core upper chamber (23).
7. the high-temperature reactor of band cooling water pipe according to claim 6, it is characterized in that, described air communicating pipe (41) is provided with multiple passage, on the two ends that these passages are distributed in air communicating pipe (41) and sidewall, and at least one passage is positioned at described inner core upper chamber (23), at least one passage is positioned at described inner core lower cavity (24);
Place, the top height of this air communicating pipe (41) is higher than place, the bottom height of described beds (5), and lower than place, the top height of beds (5), between the top of this air communicating pipe (41) and the top of described beds (5), at least there is the difference in height of 10mm;
Place, the bottom height of this air communicating pipe (41) is higher than place, the top height of described heat exchanger tube (6).
8. the high-temperature reactor of band cooling water pipe according to claim 7, it is characterized in that, also comprise calandria (9), this calandria (9) is extend into by the top of described shell (1) and is located at the inner thermal treatment zone (25) of described inner core (2), and this thermal treatment zone (25) are positioned at the top of described beds (5);
The top of described inner core (2) is located at by described inner core air inlet (21).
9. the high-temperature reactor of band cooling water pipe according to claim 8, it is characterized in that, described air communicating pipe (41) is provided with at least two passages, and at least one passage is positioned at inner core upper chamber (23), at least one passage is positioned at inner core lower cavity (24);
The length that the top of this air communicating pipe (41) extend into beds (5) is at most 300mm;
Place, the bottom height of this air communicating pipe (41) is higher than place, the top height of described heat exchanger tube (6).
10. a chemical system, is characterized in that, comprises the high-temperature reactor (A) of the band cooling water pipe according to any one of the claims 1 to 9, drum (B) and circulating pump (C);
The heat exchanger tube water inlet (61) of the high-temperature reactor (A) of described band cooling water pipe is communicated with the delivery port of drum (B) with the delivery port of described circulating pump (C) respectively, the heat exchanger tube delivery port (62) of the high-temperature reactor (A) of this band cooling water pipe is communicated with the water inlet of drum (B), and the water inlet of described circulating pump (C) is communicated with the delivery port of drum (B);
Be provided with between the delivery port of described heat exchanger tube water inlet (61) and described drum (B) between the water inlet of moisturizing water inlet and/or described circulating pump (C) and the delivery port of drum (B) and be provided with moisturizing water inlet.
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| CN101249407A (en) * | 2008-04-10 | 2008-08-27 | 华东理工大学 | By-product steam combined axial flow gas-solid phase fixed bed catalyst chamber |
| US20110033373A1 (en) * | 2009-08-07 | 2011-02-10 | Korea Institute Of Energy Research | Multi-fluidized bed water-gas shift reactor using syngas and production of hydrogen using the same |
| CN103357355A (en) * | 2013-08-06 | 2013-10-23 | 北京华福工程有限公司 | High-temperature reactor and chemical engineering system using the same |
| CN204234071U (en) * | 2014-10-29 | 2015-04-01 | 北京华福工程有限公司 | High-temperature reactor with cooling water pipe and chemical system |
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2014
- 2014-10-29 CN CN201410594220.1A patent/CN104307440A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101249407A (en) * | 2008-04-10 | 2008-08-27 | 华东理工大学 | By-product steam combined axial flow gas-solid phase fixed bed catalyst chamber |
| US20110033373A1 (en) * | 2009-08-07 | 2011-02-10 | Korea Institute Of Energy Research | Multi-fluidized bed water-gas shift reactor using syngas and production of hydrogen using the same |
| CN103357355A (en) * | 2013-08-06 | 2013-10-23 | 北京华福工程有限公司 | High-temperature reactor and chemical engineering system using the same |
| CN204234071U (en) * | 2014-10-29 | 2015-04-01 | 北京华福工程有限公司 | High-temperature reactor with cooling water pipe and chemical system |
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