CN103752226A - Self-circulation chemical synthesizer for executing separation and preheating by refrigerating device - Google Patents
Self-circulation chemical synthesizer for executing separation and preheating by refrigerating device Download PDFInfo
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- CN103752226A CN103752226A CN201410015810.4A CN201410015810A CN103752226A CN 103752226 A CN103752226 A CN 103752226A CN 201410015810 A CN201410015810 A CN 201410015810A CN 103752226 A CN103752226 A CN 103752226A
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Abstract
The invention relates to a self-circulation chemical synthesizer for executing the separation and preheating by a refrigerating device, and relates to a chemical synthesis reactor. The self-circulation chemical synthesizer mainly comprises an upper end, a shell, a wall body, a cooling pipe bundle, a lower end, an evaporator, a condenser and a refrigerating compressor, wherein the upper end, the shell, the wall body, the cooling pipe bundle and the lower end form the chemical synthesizer, the wall body is arranged in the internal space of the shell, the space between the shell and the wall body form a descending passage, a reaction chamber, a heating chamber and a gas collection chamber are formed at the internal space of the wall body, the internal space of the shell below the gas collection chamber forms a lower gas chamber, and the cooling pipe bundle is arranged in the descending passage; the evaporator, the condenser and the refrigerating compressor form a cooling device, the evaporator is arranged in the lower gas chamber, the condenser is arranged in the heating chamber, and the refrigerating compressor is arranged outside the chemical synthesizer. The evaporation absorbed heat and condensation released heat of refrigerating agent are used for separating a target product and preheating unreacted gas, the room temperature beneficial to the chemical synthesis and the circulation power are formed.
Description
Technical field
The present invention relates to a kind of chemical industry equipment, specially refer to a kind of chemosynthesis reaction device.
Background technology
In the production process of chemical synthesis, need to heat unstripped gas, at suitable temperature, combination reaction is more easily carried out, and catalytic efficiency is higher; Owing to there being reversible reaction, therefore, the target product existing in synthesis reactor and the mixture of unreacting gas, it is that the mixture of target product and unreacting gas is taked coolingly with distillation measure, target product to be separated outside reactor that conventional synthetic reaction is produced.
Under the condition existing at catalyst, most of chemosynthesis reactions are all reversible reactions, when target product reaches after finite concentration, will be in balance, and reaction will no longer be carried out to the direction of synthetic target product.People are in carrying out the production process of combination reaction, in order to make reaction can continue to carry out to target product direction, must make mix products export from synthesis reactor and fill into new raw material gas in synthesis reactor, target product concentration in synthesis reactor is reduced, after destruction of balance, make combination reaction proceed, after mix products is exported from synthesis reactor, by separation equipment, unreacting gas is separated, again unreacting gas is returned and in synthesis reactor, carries out circular response, because one way catalytic rate is only in 20% left and right, unstripped gas must be by being repeatedly reacted into target product after circulation compression in synthesis reactor, and each circulation compression all needs to consume very large compression energy consumption.
In existing synthesis reactor, under the synthetic condition of applications catalyst, the operating pressure of synthetic ammonia is more than 8MPa, the operating pressure of synthesizing methanol is between 3～15MPa, the operating pressure of direct synthesis of dimethyl ether from synthesis gas is between 2～5MPa, obtain above-mentioned operating pressure, must take multi-stage compression to realize, compression energy consumption is very large, therefore, existing synthesis reactor must repeatedly circulate and multi-stage compression could synthesize unstripped gas the production process of target product, has the shortcoming that power consumption is large.
Summary of the invention
The object of the invention is to overcome existing chemical synthesis equipment and unstripped gas need be carried out to the large shortcoming of iterative cycles compression power consumption, design a kind of self-loopa chemical synthesis device of being carried out separated and preheating by refrigerating plant, by synthesis reactor, carry out automatic cycle and complete synthetic reaction, make unstripped gas only need just can all synthesize target product by first compression, significantly to reduce power consumption and to improve catalytic efficiency, in the production of synthetic ammonia, methyl alcohol, dimethyl ether and in other need carry out the production process of chemical synthesis, realize energy-saving and emission-reduction.
A kind of self-loopa chemical synthesis device of being carried out separated and preheating by refrigerating plant of the present invention, it is characterized in that synthesizer is mainly by upper end (1), housing (8), wall body (9), cooling tube bundle (7), lower end (22), annular water knockout drum (31), annular water collector (3), evaporimeter (24), condenser (29) and refrigeration compressor (18) form, wherein, by upper end (1), housing (8), wall body (9), cooling tube bundle (7), annular water knockout drum (31), annular water collector (3) and lower end (22) form chemical synthesis device, upper end (1) is arranged on the upper port of housing (8), lower end (22) is arranged on the lower port of housing (8), housing (8) and wall body (9) are all cylindrical structure, wall body (9) is arranged in the interior space of housing (8), between housing (8) and wall body (9), have living space, space between housing (8) and wall body (9) forms decline passway (VI), the interior space of wall body (9) forms reative cell (I), heating clamber (II) and collection chamber (V), reative cell (I), heating clamber (II) and collection chamber (V) are arranged in order from top to bottom, between reative cell (I) and heating clamber (II), there is dividing plate (33), dividing plate had wind hole on (33), between heating clamber (II) and collection chamber (V), have air distribution plate (28), air distribution plate has wind distributing hole on (28), the interior space of housing (8) of collection chamber (V) lower portion forms lower chamber (IV), and the interior space of housing (8) at position, reative cell (I) top forms upper chamber (VII), lower chamber (IV) is communicated to collection chamber (V), collection chamber (V) is communicated to heating clamber (II) by the wind distributing hole on air distribution plate (28), heating clamber (II) is communicated to reative cell (I) by the wind hole of crossing on dividing plate (33), reative cell (I) is communicated to upper chamber (VII), and upper chamber (VII) is communicated to lower chamber (IV) by decline passway (VI), the bottom of lower chamber (IV) is circular arc bottom structure, and the circular arc bottom of lower chamber (IV) forms liquid collecting zone (III), has product outlet (23) to pick out on the circular arc bottom of liquid collecting zone (III), cooling tube bundle (7) is combined by many steel pipes, and many steel pipes are arranged in decline passway (VI) in annular layout mode, annular water knockout drum (31) is arranged on the periphery, bottom of housing (8), and annular water knockout drum (31) is circular tube structure, has a minute water interface on annular water knockout drum (31), and the quantity of minute water interface equates with the steel pipe quantity of cooling tube bundle (7), annular water collector (3) is arranged on the periphery, top of housing (8), and annular water collector (3) is circular tube structure, and annular water collector has the interface of catchmenting on (3), and the quantity of the interface that catchments equates with the steel pipe quantity of cooling tube bundle (7), the water inlet end of each steel pipe lower end of cooling tube bundle (7) passes on each minute water interface being connected to annular water knockout drum (31) from the bottom of housing (8) respectively, the water side of each steel pipe upper end of cooling tube bundle (7) passes respectively each that be connected to annular water collector (3) and catchments interface from the top of housing (8), on annular water collector (3), there is coolant outlet (4) to pick out, on annular water knockout drum (31), have cooling water inlet (30) access.By evaporimeter (24), condenser (29) and refrigeration compressor (18), form cooling device, evaporimeter (24) is arranged in lower chamber (IV), on evaporimeter (24), have evaporation input interface (20) and return-air output interface (21), the evaporation input interface (20) on evaporimeter (24) and return-air output interface (21) pass the external of chemical synthesis device from the housing (8) at lower chamber (IV) position; Condenser (29) is arranged in heating clamber (II), on condenser (29), have return-air input interface (11) and condensation output interface (12), the return-air input interface (11) on condenser (29) and condensation output interface (12) pass the external of chemical synthesis device from the wall body (9) at heating clamber (II) position; Refrigeration compressor (18) is arranged on the external of chemical synthesis device, on refrigeration compressor (18), there are exhaust port (17) and air-breathing interface (19), the exhaust port (17) of refrigeration compressor (18) is connected on the return-air input interface (11) of condenser, the evaporation input interface (20) that the condensation output interface (12) of condenser is connected to evaporimeter (24) by expansion valve (16) or capillary is upper, and the return-air output interface (21) of evaporimeter (24) is connected on the air-breathing interface (19) of refrigeration compressor (18).
In the present invention, have upper supporting piece (37) and lower support element (27) in chemical synthesis device, wall body (9) is connected on the inner side of housing (8) by upper supporting piece (37) and lower support element (27), in the bottom of reative cell (I), there is catalyst discharge port (10) to pick out from the side the external of chemical synthesis device, lower chamber (IV) has unstripped gas to supplement interface (26) access, upper end (1) is disc structure, has the catalyst charging hole (VIII) of up/down perforation in the disc structure of upper end (1), and catalyst charging hole (VIII) has top cover (41) to seal, in reative cell (I), there is temperature adjustment coil pipe (35), the lower end of temperature adjustment coil pipe (35) passes outside chemical synthesis body from upper end (1) by inlet tube (6), the upper end of temperature adjustment coil pipe (35) passes outside chemical synthesis body from upper end (1) by fairlead (36), on the entrance of inlet tube (6), there is temperature control medium input port (42) access, in the outlet of fairlead (36), have temperature control medium delivery outlet (39) to pick out, evaporimeter (24) is finned coil formula structure, the fin upper end of evaporimeter (24) extend in the entrance of collection chamber (V), and lower chamber (IV) is communicated to heating clamber (II) by the wind distributing hole on gap, collection chamber (V) and the air distribution plate (28) of evaporimeter (24) fin successively, condenser (29) is finned coil formula structure, and the space between condenser (29) fin forms the gas channel in heating clamber (II), between the condensation output interface (12) of condenser and expansion valve (16) or arrival end capillaceous, there is water cooler (14), water cooler has refrigerant loop and chilled(cooling) water return (CWR) in (14), refrigerant loop and chilled(cooling) water return (CWR) isolate mutually, on refrigerant loop, there are cold-producing medium input interface (13) and cold-producing medium output interface (15), on chilled(cooling) water return (CWR), there are cooling water input and cooling water output, the condensation output interface (12) of condenser is connected on the cold-producing medium input interface (13) of water cooler (14), the cold-producing medium output interface (15) of water cooler (14) is connected on the evaporation input interface (20) of evaporimeter by expansion valve (16) or capillary, on the housing (8) at upper chamber (VII) position, there is temperature sensor (38), on the lateral surface of wall body (9), there is heat insulation layer (34).
In above-mentioned invention, utilize the evaporation endothermic of cold-producing medium and the principle of condensation heat release, by evaporimeter (24), in lower chamber (IV), freezed respectively, by condenser (29), in heating clamber (II), heated simultaneously, with realize target product, in lower chamber (IV), carry out separation, unstripped gas or unreacting gas and carry out preheating in heating clamber (II), to promote and quickening makes unstripped gas or the unreacting gas catalyzed target product that synthesizes in reative cell (I).In refrigerating plant, by the exhaust port of refrigeration compressor (18), the return air inlet by condenser is input in the coil pipe of condenser (29) cold-producing medium of gaseous state, by the condensation outlet of condenser, through expansion valve (16) or capillary, the evaporation input interface (20) by evaporimeter is input in the coil pipe of evaporimeter (24) again, and then by the return-air output interface (21) of evaporimeter, turned back to the air-breathing interface of refrigeration compressor (18), form a closed closed circuit, owing to having expansion valve (16) or the capillary with throttling action between the condensation output interface (12) at condenser and the evaporation input interface (20) of evaporimeter, in the situation that refrigeration compressor (18) moves, make interior formation of coil pipe of evaporimeter (24) be applicable to the evaporating pressure that cold-producing medium evaporates, make liquid cold-producing medium in the coil pipe of evaporimeter (24), evaporate the cold-producing medium that becomes gaseous state, make interior formation of coil pipe of condenser (29) be applicable to the condensing pressure that cold-producing medium carries out condensation simultaneously, make the cold-producing medium of gaseous state in the coil pipe of condenser (29), be condensed into liquid cold-producing medium, cold-producing medium is when being evaporated to gaseous state by liquid state, need to absorb a large amount of heats, thereby freezed in lower chamber (IV) by evaporimeter (24), cold-producing medium is when being condensed into liquid state by gaseous state, need emit a large amount of heats, thereby heated in heating clamber (II) by condenser (29).
Above-mentioned invention is when producing, catalyst discharge port (10) is carried out to shutoff, cooling water inlet (30) on annular water knockout drum (31) is connected on the water supply line of cooling water system, coolant outlet (4) on annular water collector (3) is connected on the water return pipeline of cooling water system, the temperature control medium input port (42) of temperature adjustment coil pipe (35) is connected to by control valve on the supply channel of tempered water, the temperature control medium delivery outlet (39) of temperature adjustment coil pipe (35) is connected on the water return pipeline of tempered water; Unstripped gas is supplemented to interface (26) to be connected on the exhaust port of feed gas compressor; The product outlet (23) of liquid collecting zone (III) bottom is connected on the input interface of product storage tank by pressure-reducing valve; In reative cell (I), place catalyst, the catalyst according to target requirement of product is selected and is activated.Then in chemical synthesis device, input unstripped gas, make unstripped gas be filled in lower chamber (IV), collection chamber (V), heating clamber (II), reative cell (I), in upper chamber (VII) and decline passway (VI), by feed gas compressor, in synthesis reactor, compress unstripped gas, make to reach in chemical synthesis device the operating pressure of applicable target product chemical combination, so just carry out chemosynthesis reaction in reative cell (I), generate target product, when unstripped gas carries out combination reaction, can produce heat, the reaction heat generating can make to heat up in reative cell (I), thereby unreacting gas and gaseous state target product in reative cell (I) are heated up, the density of the gaseous mixture of unreacting gas and the mixing of gaseous state target product is diminished, according to gravity circulation theory, gaseous mixture after intensification can carry out ascending motion, enter into the upper chamber (VII) on reative cell (I) top, simultaneously, decline passway (VI) is subject to the refrigeration of cooling tube bundle (7), absorb the heat of unreacting gas or gaseous mixture and make unreacting gas or gaseous mixture cooling, the density of unreacting gas or gaseous mixture is increased, according to gravity circulation theory, unreacting gas after cooling or gaseous mixture can carry out descending motion, enter into lower chamber (IV), in lower chamber (IV), there is the refrigeration of evaporimeter (24), make room temperature in lower chamber (IV) lower than the evaporating temperature of target product, target product in mixture just becomes liquid product and is separated in lower chamber (IV), liquid target product exports (23) by product and outputs in product storage tank, unreacting gas evenly enters into heating clamber (II) by collection chamber (V) by the wind distributing hole on air distribution plate (28) and carries out preheating, through the unreacting gas of preheating, by the wind hole of crossing on dividing plate (33), enter reative cell (I) and carry out circular response again, the unstripped gas that synthetic target product consumes supplements interface (26) by unstripped gas and supplements, so go round and begin again, by chemical synthesis device, in isobaric condition, form automatic cycle, and isolate in time target product, make target product concentration in synthesis reactor all the time lower than equalization point, make combination reaction can continue to carry out.In said process, unreacting gas being heated in heating clamber (II) heated up and impelled unreacting gas to carry out ascending motion, and the gaseous mixture ascending motion stack with in reative cell (I), forms larger circulation power.The present invention makes unstripped gas only need just can all synthesize target product by first compression, has overcome unstripped gas and need carry out the large shortcoming of iterative cycles compression power consumption, has improved catalytic efficiency, realizes energy-saving and emission-reduction.
In above-mentioned invention, the effect that evaporimeter (24) is set in lower chamber (IV) is that the room temperature of lower chamber (IV) can be dropped to below the evaporating temperature of target product, evaporimeter (24) is applied as gas-liquid separator, in synthesis reactor inside, carry out in time the separation of target product, reduce the target product concentration in reactor, combination reaction is carried out to favourable direction, make unstripped gas accelerate synthetic target product, improve catalytic efficiency, and do not need, separated outside gaseous mixture output-response device, to reach energy-conservation object; Condenser (29) is set in heating clamber (II), be used in conjunction with evaporimeter (24), utilize the condensation heat release of cold-producing medium to come preheating material gas or unreacting gas, not only make condenser (29) carry out smoothly heat exchange, and make full use of refrigeration waste heat, by ringing, make to produce and be applicable to the synthetic room temperature of target product in reative cell (I), play the effect that makes unstripped gas accelerate circulation catalysis.
In above-mentioned invention, the effect that water cooler (14) is set is that to make from condenser (29) cold-producing medium of output obtain further cooling, to eliminate residual gaseous refrigerant, thereby improves the efficiency of cold-producing medium.
In above-mentioned invention, in upper chamber (VII), set temperature sensor (38) and effect that temperature adjustment coil pipe (35) is set in reative cell (I) are the operating temperatures of controlling in reative cell (I), during concrete enforcement, the temperature information detecting according to temperature sensor (38), by the temperature of temperature control medium or the operating temperature that flow is controlled reative cell (I) in operation temperature adjustment coil pipe (35).
In above-mentioned invention, the object that heat insulation layer (34) is installed on the lateral wall of wall body (9) is to make to carry out between the wall body (9) of reative cell and heating clamber (II) and decline passway (VI) thermal insulation isolation, avoid reative cell (I) and heating clamber (II) to be subject to cooling, thereby guarantee the temperature that in reative cell (I), maintenance chemical reaction needs.
In above-mentioned invention, because lower chamber (IV), collection chamber (V), heating clamber (II), reative cell (I), upper chamber (VII) and decline passway (VI) coexist in the interior space of housing (8), therefore, chemical synthesis device is under equal pressure condition, to carry out self-loopa catalytic synthesis, make the wall body (9) of reative cell not bear pressure, can greatly reduce the material usage of wall body (9).
The invention has the beneficial effects as follows: a kind of self-loopa chemical synthesis device of being carried out separated and preheating by refrigerating plant of design, take the measure that in lower chamber (IV), evaporimeter (24) is set, condenser (29) is set and cooling tube bundle (7) are set in decline passway (VI) in heating clamber (II), evaporimeter (24) is used in conjunction with condenser (29), utilize the evaporation endothermic of cold-producing medium in chemical synthesis device inside, to carry out the separation of target product in time, reduce the target product concentration in chemical synthesis device, combination reaction is carried out to favourable direction; Utilize the condensation heat release of cold-producing medium to come preheating material gas or unreacting gas simultaneously, form the room temperature of favourable chemical synthesis and form circulation power.The present invention makes unstripped gas only need just can all synthesize target product by first compression, significantly to reduce power consumption and to improve catalytic efficiency, compare with routine techniques, the present invention has overcome conventional chemical synthesis equipment need carry out the large shortcoming of iterative cycles compression power consumption unstripped gas.The present invention can apply on the production line of the chemical synthesis products such as methyl alcohol, dimethyl ether, synthetic ammonia.
Accompanying drawing explanation
Fig. 1 is the self-loopa chemical synthesis device structure chart of being carried out separated and preheating by refrigerating plant of the present invention.
Fig. 2 is the A-A profile of Fig. 1.
In figure: 1. upper end, 2. sealing ring b, 3. annular water collector, 4. coolant outlet, 5. the water side of cooling tube bundle, 6. the inlet tube of temperature adjustment coil pipe, 7. cooling tube bundle, 8. the housing of synthesis reactor, 9. the wall body of reative cell, 10. catalyst discharge port, the return-air input interface of 11. condensers, the condensation output interface of 12. condensers, the cold-producing medium input interface of 13. water coolers, 14. water coolers, the cold-producing medium output interface of 15. water coolers, 16. expansion valves, the exhaust port of 17. refrigeration compressors, 18. refrigeration compressors, the air-breathing interface of 19. refrigeration compressors, the evaporation input interface of 20. evaporimeters, the return-air output interface of 21. evaporimeters, 22. lower ends, 23. product outlets, 24. evaporimeters, 25. sealing ring c, 26. unstripped gas supplement interface, 27. lower support elements, 28. air distribution plates, 29. condensers, 30. cooling water inlets, 31. annular water knockout drums, the water inlet end of 32. cooling tube bundles, 33. dividing plates, 34. heat insulation layers, 35. temperature adjustment coil pipes, the fairlead of 36. temperature adjustment coil pipes, 37. upper supporting pieces, 38. temperature sensors, the delivery outlet of 39. temperature control mediums, 40. sealing ring a, 41. top covers, the input port of 42. temperature control mediums, I. reative cell, II. heating clamber, III. liquid collecting zone, IV. lower chamber, V. collection chamber, VI. decline passway, VII. upper chamber, VIII. catalyst charging hole.
The specific embodiment
In embodiment shown in the drawings, a kind of self-loopa chemical synthesis device of carrying out separated and preheating by refrigerating plant is mainly by upper end (1), housing (8), wall body (9), cooling tube bundle (7), lower end (22), annular water knockout drum (31), annular water collector (3), evaporimeter (24), condenser (29), water cooler (14) and refrigeration compressor (18) form, wherein, by upper end (1), housing (8), wall body (9), cooling tube bundle (7), annular water knockout drum (31), annular water collector (3) and lower end (22) form chemical synthesis device, upper end (1) is arranged on the upper port of housing (8), lower end (22) is arranged on the lower port of housing (8), housing (8) and wall body (9) are all cylindrical structure, wall body (9) is arranged in the interior space of housing (8), between housing (8) and wall body (9), have living space, space between housing (8) and wall body (9) forms decline passway (VI), the interior space of wall body (9) forms reative cell (I), heating clamber (II) and collection chamber (V), reative cell (I), heating clamber (II) and collection chamber (V) are arranged in order from top to bottom, between reative cell (I) and heating clamber (II), there is dividing plate (33), dividing plate had wind hole on (33), between heating clamber (II) and collection chamber (V), have air distribution plate (28), air distribution plate has wind distributing hole on (28), the interior space of housing (8) of collection chamber (V) lower portion forms lower chamber (IV), and the interior space of housing (8) at position, reative cell (I) top forms upper chamber (VII), on the housing (8) at upper chamber (VII) position, has temperature sensor (38), in the bottom of reative cell (I), there is catalyst discharge port (10) to pick out from the side the external of chemical synthesis device, in reative cell (I), there is temperature adjustment coil pipe (35), the lower end of temperature adjustment coil pipe (35) passes outside chemical synthesis body from upper end (1) by inlet tube (6), the upper end of temperature adjustment coil pipe (35) passes outside chemical synthesis body from upper end (1) by fairlead (36), on the entrance of inlet tube (6), there is temperature control medium input port (42) access, in the outlet of fairlead (36), have temperature control medium delivery outlet (39) to pick out, collection chamber (V) is communicated to heating clamber (II) by the wind distributing hole on air distribution plate (28), heating clamber (II) is communicated to reative cell (I) by the wind hole of crossing on dividing plate (33), reative cell (I) is communicated to upper chamber (VII), and upper chamber (VII) is communicated to lower chamber (IV) by decline passway (VI), the bottom of lower chamber (IV) is circular arc bottom structure, and the circular arc bottom of lower chamber (IV) forms liquid collecting zone (III), has product outlet (23) to pick out on the circular arc bottom of liquid collecting zone (III), and the middle part of lower chamber (IV) has unstripped gas to supplement interface (26) access, cooling tube bundle (7) is combined by many steel pipes, and many steel pipes are arranged in decline passway (VI) in annular layout mode, annular water knockout drum (31) is arranged on the periphery, bottom of housing (8), and annular water knockout drum (31) is circular tube structure, has a minute water interface on annular water knockout drum (31), and the quantity of minute water interface equates with the steel pipe quantity of cooling tube bundle (7), annular water collector (3) is arranged on the periphery, top of housing (8), and annular water collector (3) is circular tube structure, and annular water collector has the interface of catchmenting on (3), and the quantity of the interface that catchments equates with the steel pipe quantity of cooling tube bundle (7), the water inlet end of each steel pipe lower end of cooling tube bundle (7) passes on each minute water interface being connected to annular water knockout drum (31) from the bottom of housing (8) respectively, the water side of each steel pipe upper end of cooling tube bundle (7) passes respectively each that be connected to annular water collector (3) and catchments interface from the top of housing (8), on annular water collector (3), there is coolant outlet (4) to pick out, on annular water knockout drum (31), have cooling water inlet (30) access.By evaporimeter (24), condenser (29), water cooler (14) and refrigeration compressor (18) form cooling device, evaporimeter (24) is arranged in lower chamber (IV), evaporimeter (24) is finned coil formula structure, the fin upper end of evaporimeter (24) extend in the entrance of collection chamber (V), lower chamber (IV) is successively by the gap of evaporimeter (24) fin, wind distributing hole on collection chamber (V) and air distribution plate (28) is communicated to heating clamber (II), on evaporimeter (24), there are evaporation input interface (20) and return-air output interface (21), evaporation input interface (20) on evaporimeter (24) and return-air output interface (21) pass the external of chemical synthesis device from the housing (8) at lower chamber (IV) position, condenser (29) is arranged in heating clamber (II), condenser (29) is finned coil formula structure, space between condenser (29) fin forms the gas channel in heating clamber (II), on condenser (29), have return-air input interface (11) and condensation output interface (12), the return-air input interface (11) on condenser (29) and condensation output interface (12) pass the external of chemical synthesis device from the wall body (9) at heating clamber (II) position, water cooler (14) and refrigeration compressor (18) are arranged on the external of chemical synthesis device, water cooler has refrigerant loop and chilled(cooling) water return (CWR) in (14), refrigerant loop and chilled(cooling) water return (CWR) isolate mutually, on refrigerant loop, there are cold-producing medium input interface (13) and cold-producing medium output interface (15), on chilled(cooling) water return (CWR), have cooling water input and cooling water output, on refrigeration compressor (18), there are exhaust port (17) and air-breathing interface (19), the exhaust port (17) of refrigeration compressor (18) is connected on the return-air input interface (11) of condenser, the condensation output interface (12) of condenser is connected on the cold-producing medium input interface (13) of water cooler (14), the cold-producing medium output interface (15) of water cooler (14) is connected on the evaporation input interface (20) of evaporimeter by expansion valve (16) or capillary, the return-air output interface (21) of evaporimeter (24) is connected on the air-breathing interface (19) of refrigeration compressor (18).In the present embodiment, upper end (1) is disc structure, has the catalyst charging hole (VIII) of up/down perforation in the disc structure of upper end (1), and catalyst charging hole (VIII) has top cover (41) to seal; In chemical synthesis device, have upper supporting piece (37) and lower support element (27), wall body (9) is connected on the inner side of housing (8) by upper supporting piece (37) and lower support element (27); On the lateral surface of wall body (9), there is heat insulation layer (34); Between top cover (41) and the joint face of upper end (1), there is sealing ring a(40); Between upper end (1) and the joint face of housing (8) upper port, there is sealing ring b(2); Between the lower port of housing (8) and the joint face of lower end (22), there is sealing ring c(25).
The present embodiment is when producing, catalyst discharge port (10) is carried out to shutoff, cooling water inlet (30) on annular water knockout drum (31) is connected on the water supply line of cooling water system, coolant outlet (4) on annular water collector (3) is connected on the water return pipeline of cooling water system, cooling water input on the chilled(cooling) water return (CWR) of water cooler (14) and cooling water output are connected on the pipeline of cooling water system, the temperature control medium input port (42) of temperature adjustment coil pipe (35) is connected on the supply channel of tempered water by control valve, the temperature control medium delivery outlet (39) of temperature adjustment coil pipe (35) is connected on the water return pipeline of tempered water, unstripped gas is supplemented to interface (26) to be connected on the exhaust port of feed gas compressor, the product outlet (23) of liquid collecting zone (III) bottom is connected on the input interface of product storage tank by pressure-reducing valve, in reative cell (I), place catalyst, the catalyst according to target requirement of product is selected and is activated.Then in chemical synthesis device, input unstripped gas, make unstripped gas be filled in lower chamber (IV), collection chamber (V), heating clamber (II), reative cell (I), in upper chamber (VII) and decline passway (VI), by feed gas compressor, in synthesis reactor, compress unstripped gas, make to reach in chemical synthesis device the operating pressure of applicable target product chemical combination, so just carry out chemosynthesis reaction in reative cell (I), generate target product, when unstripped gas carries out combination reaction, can produce heat, the reaction heat generating can make to heat up in reative cell (I), thereby unreacting gas and gaseous state target product in reative cell (I) are heated up, the density of the gaseous mixture of unreacting gas and the mixing of gaseous state target product is diminished, according to gravity circulation theory, gaseous mixture after intensification can carry out ascending motion, enter into the upper chamber (VII) on reative cell (I) top, simultaneously, decline passway (VI) is subject to the refrigeration of cooling tube bundle (7), absorb the heat of unreacting gas or gaseous mixture and make unreacting gas or gaseous mixture cooling, the density of unreacting gas or gaseous mixture is increased, according to gravity circulation theory, unreacting gas after cooling or gaseous mixture can carry out descending motion, enter into lower chamber (IV), in lower chamber (IV), there is the refrigeration of evaporimeter (24), make room temperature in lower chamber (IV) lower than the evaporating temperature of target product, target product in mixture just becomes liquid product and is separated in lower chamber (IV), liquid target product exports (23) by product and outputs in product storage tank, unreacting gas evenly enters into heating clamber (II) by collection chamber (V) by the wind distributing hole on air distribution plate (28) and carries out preheating, through the unreacting gas of preheating, by the wind hole of crossing on dividing plate (33), enter reative cell (I) and carry out circular response again, the unstripped gas that synthetic target product consumes supplements interface (26) by unstripped gas and supplements, so go round and begin again, by chemical synthesis device, in isobaric condition, form automatic cycle, and isolate in time target product, make target product concentration in synthesis reactor all the time lower than equalization point, make combination reaction can continue to carry out.In said process, unreacting gas being heated in heating clamber (II) heated up and impelled unreacting gas to carry out ascending motion, and the gaseous mixture ascending motion stack with in reative cell (I), forms larger circulation power.When the present embodiment is produced, the temperature information detecting according to temperature sensor (38), by the temperature of temperature control medium or the operating temperature that flow is controlled reative cell (I) in operation temperature adjustment coil pipe (35).
On the production line of the present embodiment as methyl alcohol, dimethyl ether, synthetic ammonia or other chemical synthesis product, apply.When applying as synthesizing methanol equipment, at reative cell (I), CuO with 48%, 46% ZnO and 5% Al are set
2o
3for the pellet type catalyst of component, then the H of the CO of a volume and two volumes
2after mixing, as unstripped gas, be input in synthesis reactor, carry out synthesizing methanol production, the reaction equation that unstripped gas synthesizes methyl alcohol is CO+2H
2→ CH
3oH+102.5kj; When applying as one-step method dimethyl ether synthesis equipment, at reative cell (I), CuO with 48%, 46% ZnO and 5% Al are set
2o
3for the pellet type catalyst of component, then add and fill out ZSM-5 molecular sieve, then the H of the CO of a volume and two volumes
2after mixing, as unstripped gas, be input in synthesis reactor, carry out dimethyl ether synthesis production, the reaction equation that unstripped gas synthesizes dimethyl ether is 2CO+4H
2→ (CH
3)
2o+H
2o+200.2kj; When applying as ammonia synthesis unit, reative cell (I) setting, with catalyst component, take Fe as main, with Al
2o
3, K
2o, CaO, SiO
2, BaO is promoter, then the N of a volume
2h with three volumes
2after mixing, as unstripped gas, be input in synthesis reactor, carry out Ammonia Production, the reaction equation that unstripped gas synthesizes ammonia is N
2+ 3H
2→ 2NH
3+ 92.1kj.
Claims (9)
1. a self-loopa chemical synthesis device of being carried out separated and preheating by refrigerating plant, it is characterized in that synthesizer is mainly by upper end (1), housing (8), wall body (9), cooling tube bundle (7), lower end (22), annular water knockout drum (31), annular water collector (3), evaporimeter (24), condenser (29) and refrigeration compressor (18) form, wherein, by upper end (1), housing (8), wall body (9), cooling tube bundle (7), annular water knockout drum (31), annular water collector (3) and lower end (22) form chemical synthesis device, upper end (1) is arranged on the upper port of housing (8), lower end (22) is arranged on the lower port of housing (8), housing (8) and wall body (9) are all cylindrical structure, wall body (9) is arranged in the interior space of housing (8), between housing (8) and wall body (9), have living space, space between housing (8) and wall body (9) forms decline passway (VI), the interior space of wall body (9) forms reative cell (I), heating clamber (II) and collection chamber (V), reative cell (I), heating clamber (II) and collection chamber (V) are arranged in order from top to bottom, between reative cell (I) and heating clamber (II), there is dividing plate (33), dividing plate had wind hole on (33), between heating clamber (II) and collection chamber (V), have air distribution plate (28), air distribution plate has wind distributing hole on (28), the interior space of housing (8) of collection chamber (V) lower portion forms lower chamber (IV), and the interior space of housing (8) at position, reative cell (I) top forms upper chamber (VII), lower chamber (IV) is communicated to collection chamber (V), collection chamber (V) is communicated to heating clamber (II) by the wind distributing hole on air distribution plate (28), heating clamber (II) is communicated to reative cell (I) by the wind hole of crossing on dividing plate (33), reative cell (I) is communicated to upper chamber (VII), and upper chamber (VII) is communicated to lower chamber (IV) by decline passway (VI), the bottom of lower chamber (IV) is circular arc bottom structure, and the circular arc bottom of lower chamber (IV) forms liquid collecting zone (III), has product outlet (23) to pick out on the circular arc bottom of liquid collecting zone (III), cooling tube bundle (7) is combined by many steel pipes, and many steel pipes are arranged in decline passway (VI) in annular layout mode, annular water knockout drum (31) is arranged on the periphery, bottom of housing (8), and annular water knockout drum (31) is circular tube structure, has a minute water interface on annular water knockout drum (31), and the quantity of minute water interface equates with the steel pipe quantity of cooling tube bundle (7), annular water collector (3) is arranged on the periphery, top of housing (8), and annular water collector (3) is circular tube structure, and annular water collector has the interface of catchmenting on (3), and the quantity of the interface that catchments equates with the steel pipe quantity of cooling tube bundle (7), the water inlet end of each steel pipe lower end of cooling tube bundle (7) passes on each minute water interface being connected to annular water knockout drum (31) from the bottom of housing (8) respectively, the water side of each steel pipe upper end of cooling tube bundle (7) passes respectively each that be connected to annular water collector (3) and catchments interface from the top of housing (8), on annular water collector (3), there is coolant outlet (4) to pick out, on annular water knockout drum (31), have cooling water inlet (30) access,
By evaporimeter (24), condenser (29) and refrigeration compressor (18), form cooling device, evaporimeter (24) is arranged in lower chamber (IV), on evaporimeter (24), have evaporation input interface (20) and return-air output interface (21), the evaporation input interface (20) on evaporimeter (24) and return-air output interface (21) pass the external of chemical synthesis device from the housing (8) at lower chamber (IV) position; Condenser (29) is arranged in heating clamber (II), on condenser (29), have return-air input interface (11) and condensation output interface (12), the return-air input interface (11) on condenser (29) and condensation output interface (12) pass the external of chemical synthesis device from the wall body (9) at heating clamber (II) position; Refrigeration compressor (18) is arranged on the external of chemical synthesis device, on refrigeration compressor (18), there are exhaust port (17) and air-breathing interface (19), the exhaust port (17) of refrigeration compressor (18) is connected on the return-air input interface (11) of condenser, the evaporation input interface (20) that the condensation output interface (12) of condenser is connected to evaporimeter (24) by expansion valve (16) or capillary is upper, and the return-air output interface (21) of evaporimeter (24) is connected on the air-breathing interface (19) of refrigeration compressor (18).
2. a kind of self-loopa chemical synthesis device of being carried out separated and preheating by refrigerating plant according to claim 1, it is characterized in that having upper supporting piece (37) and lower support element (27) in chemical synthesis device, wall body (9) is connected on the inner side of housing (8) by upper supporting piece (37) and lower support element (27); In the bottom of reative cell (I), there is catalyst discharge port (10) to pick out from the side the external of chemical synthesis device; Lower chamber (IV) has unstripped gas to supplement interface (26) access.
3. a kind of self-loopa chemical synthesis device of being carried out separated and preheating by refrigerating plant according to claim 1, it is characterized in that upper end (1) is for disc structure, the catalyst charging hole (VIII) that has up/down perforation in the disc structure of upper end (1), catalyst charging hole (VIII) has top cover (41) to seal.
4. a kind of self-loopa chemical synthesis device of being carried out separated and preheating by refrigerating plant according to claim 1, it is characterized in that in reative cell (I), there is temperature adjustment coil pipe (35), the lower end of temperature adjustment coil pipe (35) passes outside chemical synthesis body from upper end (1) by inlet tube (6), the upper end of temperature adjustment coil pipe (35) passes outside chemical synthesis body from upper end (1) by fairlead (36), on the entrance of inlet tube (6), there is temperature control medium input port (42) access, in the outlet of fairlead (36), have temperature control medium delivery outlet (39) to pick out.
5. a kind of self-loopa chemical synthesis device of being carried out separated and preheating by refrigerating plant according to claim 1, it is characterized in that evaporimeter (24) is for finned coil formula structure, the fin upper end of evaporimeter (24) extend in the entrance of collection chamber (V), and lower chamber (IV) is communicated to heating clamber (II) by the wind distributing hole on gap, collection chamber (V) and the air distribution plate (28) of evaporimeter (24) fin successively.
6. a kind of self-loopa chemical synthesis device of being carried out separated and preheating by refrigerating plant according to claim 1, is characterized in that condenser (29) is for finned coil formula structure, and the space between condenser (29) fin forms the gas channel in heating clamber (II).
7. a kind of self-loopa chemical synthesis device of being carried out separated and preheating by refrigerating plant according to claim 1, it is characterized in that there is water cooler (14) between the condensation output interface (12) of condenser and expansion valve (16) or arrival end capillaceous, water cooler has refrigerant loop and chilled(cooling) water return (CWR) in (14), refrigerant loop and chilled(cooling) water return (CWR) isolate mutually, on refrigerant loop, there are cold-producing medium input interface (13) and cold-producing medium output interface (15), on chilled(cooling) water return (CWR), there are cooling water input and cooling water output, the condensation output interface (12) of condenser is connected on the cold-producing medium input interface (13) of water cooler (14), the cold-producing medium output interface (15) of water cooler (14) is connected on the evaporation input interface (20) of evaporimeter by expansion valve (16) or capillary.
8. a kind of self-loopa chemical synthesis device of being carried out separated and preheating by refrigerating plant according to claim 1, is characterized in that there is temperature sensor (38) on the housing (8) at upper chamber (VII) position.
9. a kind of self-loopa chemical synthesis device of being carried out separated and preheating by refrigerating plant according to claim 1, is characterized in that on the lateral surface of wall body (9), there is heat insulation layer (34).
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|---|---|---|---|
| CN201410015810.4A CN103752226B (en) | 2014-01-14 | 2014-01-14 | The self-loopa chemical synthesis device of separation and preheating is performed by refrigerating plant |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112808190A (en) * | 2020-12-21 | 2021-05-18 | 辽宁科技学院 | Self-circulation chemical synthesizer for performing separation and preheating by refrigerating device |
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| US5143698A (en) * | 1990-03-05 | 1992-09-01 | Uop | Apparatus for internal backmix cooling |
| JP2000154020A (en) * | 1998-11-13 | 2000-06-06 | Chiyoda Corp | Compressor system for ammonia production |
| CA2391500A1 (en) * | 2000-03-03 | 2001-09-13 | Process Management Enterprises Ltd. | Ammonia synthesis process and apparatus for use therein |
| CN203635180U (en) * | 2014-01-14 | 2014-06-11 | 衢州昀睿工业设计有限公司 | Chemical synthesizer with refrigeration device for executing separating and preheating self-circulation |
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2014
- 2014-01-14 CN CN201410015810.4A patent/CN103752226B/en active Active
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|---|---|---|---|---|
| US5143698A (en) * | 1990-03-05 | 1992-09-01 | Uop | Apparatus for internal backmix cooling |
| JP2000154020A (en) * | 1998-11-13 | 2000-06-06 | Chiyoda Corp | Compressor system for ammonia production |
| CA2391500A1 (en) * | 2000-03-03 | 2001-09-13 | Process Management Enterprises Ltd. | Ammonia synthesis process and apparatus for use therein |
| CN203635180U (en) * | 2014-01-14 | 2014-06-11 | 衢州昀睿工业设计有限公司 | Chemical synthesizer with refrigeration device for executing separating and preheating self-circulation |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112808190A (en) * | 2020-12-21 | 2021-05-18 | 辽宁科技学院 | Self-circulation chemical synthesizer for performing separation and preheating by refrigerating device |
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