CN103961896A - Low-temperature evaporation, concentration and crystallization device of gas-liquid linkage forced circulation heat pump - Google Patents
Low-temperature evaporation, concentration and crystallization device of gas-liquid linkage forced circulation heat pump Download PDFInfo
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Abstract
The invention discloses a low-temperature evaporation, concentration and crystallization device of a gas-liquid linkage forced circulation heat pump. The device comprises an evaporator, a steam ejector, a secondary steam condenser, a raw material tank, a heating steam liquid condensation tank, a secondary steam liquid condensation tank, a vacuum pump and an inert gas storage tank; the evaporator also comprises an inert gas inlet distribution device, a vertical type tube nest heating chamber II, a liquid-gas outlet nozzle, a steam-liquid separation chamber, a foam remover, a liquid level meter, a material liquid distribution device, a communicating pipe and a vertical type tube nest heating chamber I. According to the low-temperature evaporation, concentration and crystallization device of the gas-liquid linkage forced circulation heat pump, two-stage series low-temperature steam is used for heating; pump-free forced circulation is realized by using liquid-steam linkage manner, thus direct utilization of high-temperature boiler steam in low-temperature evaporation can be realized; the overall system is compact in structure, convenient to operate and wash. The low-temperature evaporation, concentration and crystallization device of the gas-liquid linkage forced circulation heat pump is especially suitable for evaporating or crystallizing heat-sensitive materials under the condition of high concentrated strength.
Description
Technical field
The present invention relates to the technical field of energy-saving and emission-reduction and chemical separating, in chemical industry, pharmacy, food, technique and the device of the heat sensitive material low temperature of small lot, high evaporation intensity evaporation and concentration at intermittence or crystallization.
Technical background
In evaporation and concentration operation, heat sensitive material is to evaporating temperature and to add the temperature of medium more responsive.Especially at field of medicaments, portioned product non-refractory, even requires the thickening temperature can not be over 40 ℃.If evaporating temperature is slightly high, or more than high temperature, stopped for a long time, and can go out that drug effect declined, even rotten phenomenon.In order to reduce the evaporating temperature of liquid, traditional handicraft generally adopts low temperature (being less than 100 ℃) water (oil) to bathe heating, scraper plate vacuum evaporation.Although this technique has guaranteed low-temperature evaporation, there is the shortcoming that heat transfer efficiency is low.This is mainly because scraper evaporator generally adopts chuck heating, and to take low temperature conduction oil or water be thermal source, utilizes sensible heat heating, and therefore relatively with steam-heated tubular heat exchanger, its heat transfer efficiency is lower.And for scraper plate evaporation, it is disposable through heating surface that General Requirements is evaporated medium, therefore the liquid time of staying is short, and for guaranteeing being uniformly distributed of heat exchange surface liquid film, the heat transfer area of scraper evaporator is all amount of being subject to processing restrictions generally.The heat transfer efficiency that scraper evaporator is lower, the lower time of staying, and limited heat transfer area, must cause scraper evaporator evaporation intensity not high, therefore, the situation of large cocnentration factor must adopt the scraper evaporator serial operation of many different area.
Yet in actual production, it is large that a lot of liquids all belong to cocnentration factor, the situation that treating capacity is little.Therefore traditional scraper evaporator can not meet this requirement, therefore seek a kind of new evaporating concentrating method, just seems very important.For this reason, the invention provides intermittently evaporating, concentrating and crystallizing device and method of a kind of high efficiency low temperature.Compare traditional screeds evaporating and concentrating process, this technique can Low Temperature Steam be thermal source, and to select vertical array tubular heat exchanger be heating clamber, utilizes the circulation of liquid-gas linkage forced simultaneously, makes liquid in separation chamber, be spouted state, has greatly improved heat transfer efficiency.Moreover, that the method also has is simple to operate, equipment investment is few, the feature that heat transfer efficiency is high, energy consumption is low.Whole vapo(u)rization system only needs the external world that high-pressure boiler steam, cooling water, vacuum system are provided, without excess power (rotary machine), introduce, thereby avoided revealing and the problem of stopping up, the evaporation that can be small lot, highly enriched degree (having crystallization) heat sensitive material provides a little input, energy-saving safe, practicable effective way.
Summary of the invention
The invention provides the spouted vaporising device of a kind of liquid-gas linkage forced circulation low temperature, can effectively solve the technical bottleneck of existing small lot, highly enriched ratio, the operation of heat sensitive material batch concentration.This system adopts vertical array tubular Steam Heating mode, adopts the design of continuous feed, a discharging, and utilizes liquid gas to enter continuously formed pressure reduction motive force, and the circulation of accelerating system inner liquid medicine, realizes augmentation of heat transfer, reduces the object of heat transfer area.Compare with rotary machine (axial-flow pump etc.) forced circulation mode, this forced circulation mode energy consumption significantly reduces, and has avoided the problems such as leakage that rotary machine brings and Crystallization Plugging.The utilization of steam jet pump in its subsystem, has realized the direct utilization of high-temperature boiler steam in low-temperature evaporation, has further strengthened the heat transfer efficiency of evaporimeter, has reduced heat transfer area.
Technical scheme of the present invention is as follows:
A forced circulation heat pump low-temperature evaporation concentration and crystallization device for liquid gas interlock, this device comprises evaporimeter, steam jet ejector, indirect steam condenser, head tank, heating vapour-condensing flow container, indirect steam lime set tank, vavuum pump and inertial gas tank;
Comprising again of described evaporimeter: inertia air inlet distribution apparatus, vertical array tubular heating clamber II, liquid gas outlet nozzle, vapor-liquid separation chamber, demister, liquid level gauge, feed liquid distribution apparatus, communicating pipe, vertical array tubular heating clamber I;
Wherein vapor-liquid separation chamber top is provided with secondary steam outlet; The side of vapor-liquid separation chamber is provided with liquid level gauge, vapor-liquid separation chamber inner chamber top be provided with demister, under be provided with liquid gas outlet nozzle; Described liquid gas outlet nozzle is communicated with the upper pipe railway carriage or compartment of vertical array tubular heating clamber II; On described vertical array tubular heating clamber II shell side, be provided with steam inlet, and be provided with inertia air inlet distribution apparatus in lower pipe railway carriage or compartment, inertia air inlet distribution apparatus side is provided with inert gas import; Described vapor-liquid separation chamber bottom is also communicated with the liquor inlet distribution apparatus in the upper pipe of vertical array tubular heating clamber I railway carriage or compartment, and is provided with liquor inlet on connecting pipeline; Described vertical array tubular heating clamber I shell side bottom is provided with condensation-water drain; Between described vertical array tubular heating clamber I and vertical array tubular heating clamber II shell side, be provided with cross over pipe, and with pipeline, be connected in series between twice pipe railway carriage or compartments; Described serial connection pipeline is divided into and is put feed liquid outlet;
The top of the described vapor steam blaster steam-gas inlet of making a living, bottom is that mixed vapour outlet, side are indirect steam import.
Wherein, in described steam jet ejector, raw steam inlet is connected with high steam, and indirect steam import is communicated with heating vapour-condensing flow container, and mixed vapour outlet is communicated with the steam inlet arranging on vertical array tubular heating clamber II shell side;
Described vertical array tubular heating clamber I shell side bottom condensation-water drain is connected with heating vapour-condensing flow container;
Described heating vapour-condensing flow container bottom is provided with discharge outlet, and by pipeline, through valve, condensed water can regularly discharge; Top is provided with connected entrance, is communicated with the indirect steam entrance of steam jet ejector.
Described head tank is connected with the liquor inlet that is arranged on communicating pipe between vertical array tubular heating clamber I and vapor-liquid separation chamber through valve by pipeline;
Described inertial gas tank is connected with the inert gas import that is arranged on inertia air inlet distribution apparatus side through valve by pipeline;
Described indirect steam condenser shell side top is provided with steam inlet, and the secondary steam outlet at Bing Yu vapor-liquid separation chamber top connects, and shell side below is provided with condensation-water drain, and is connected with indirect steam lime set tank; In the upper pipe railway carriage or compartment of described indirect steam condenser overhead, be provided with coolant outlet, in the lower pipe railway carriage or compartment of bottom, be provided with cooling water inlet, and be connected with cooling water through valve by pipeline.
Described indirect steam lime set tank top is connected with vavuum pump through valve by pipeline, and bottom is provided with discharge outlet, and condensed water, can regularly discharge through valve by pipeline.
Innovative point of the present invention is
1, with vertical array tubular heating clamber series connection double-stage heating, replace original chuck heating; Vertical array tubular heating clamber and vapor-liquid separation chamber adopt series system, form together the circulation loop of evaporative medium sealing.The enforcement of which can greatly improve the heat transfer area of FU volume on the one hand; On the other hand, be conducive to reduce equipment volume.
2, adopt liquid-gas linkage forced endless form to replace traditional axial flow pump forced circulation; Traditional batch concentration process, evaporimeter generally adopts the disposable evaporimeter that adds of material, the present invention has increased head tank and relative inertness gas reservoir in technique, between Bing vapor-liquid separation chamber and heating clamber, and two increased respectively material inlet and gas feed and corresponding liquid, distribution of gas adjusting device between heating clamber, continuous feed, intermittent take-off, liquid-gas linkage forced circulation technology mode have been realized.It is power that the utilization of which can utilize the pressure differential of (vacuum) outer (normal pressure) in system on the one hand, realizes forced circulation, improves heat transfer efficiency; On the one hand, the introducing of gas phase also can reduce liquid and cause coking problem because of hot-spot in order.
3, the low-pressure steam of take replaces the mode of heating of traditional water bath or oil bath as thermal source; In evaporation equipment, increased a steam jet pump, this steam jet pump import is connected with high steam, and ejecting port is connected with heating steam condensate liquid storage tank, and outlet is connected with heating clamber.This device method of attachment not only can make high steam be cooled to negative pressure, and make heating steam and heating steam condensed water form an independently loop, avoid heated solvent steam and heating steam mixed mutually, be particularly useful for being evaporated the operating mode that solvent is nonaqueous solvents.
Beneficial effect of the present invention is: the present invention adopts liquid gas linkage forced circulating heat pump low-temperature evaporation, whole process structure compact (also can realize automatic control), occupation area of equipment is little, height can be adjusted according to mill construction (being less than general factory building floor height 4-6m), only need the external world to provide enterprise conventional 0.1-1MPa steam, cooling medium and vacuum system, and without other extra electrical power input, thereby guaranteed the stable operation of whole system.The present invention adopts steam jet pump, and the high steam of 0.1-1MPa is down to negative pressure, can effectively reclaim the heat of condensate liquid simultaneously, can save energy 10-30%.After steam cooling step-down, be particularly useful for the concentration and evaporation of high-thermosensitive material.In the present invention, evaporimeter adopts double vertical tubulation heating clamber series design, and concentrated solution outlet is in equipment lowermost end, and a whole set of concentrator, without dead angle, is easy to cleaning and rinses.The present invention adopts the circulation of liquid gas linkage forced, compares with Natural Circulation, and its heat transfer coefficient can improve 2-4 doubly, the material evaporation concentrate system that is applicable to highly enriched degree or has crystallization to occur.
Accompanying drawing explanation
Accompanying drawing 1 is the process chart of the spouted low-temperature evaporation condensing crystallizing of the short tube described in embodiment of the present invention system.
In figure: 1 evaporimeter; 2 steam jet ejectors; 3 indirect steam condensers; 4 head tanks; 5 indirect steam lime set tanks; 6 heating vapour-condensing flow containers; 7 vavuum pumps, 8 inertial gas tanks, 9-13 valve.
Accompanying drawing 2 is structural representations of evaporimeter.
Wherein: 101 inertia air inlet distribution apparatus, 102 vertical array tubular heating clamber II, 103 liquid gas outlet nozzles, 104 vapor-liquid separation chamber, 105 demisters, 106 liquid level gauges, 107 feed liquid distribution apparatus, 108 communicating pipes, 109 vertical array tubular heating clamber I.
Accompanying drawing 3 is structural representations of steam jet ejector.
Wherein: 201 raw steam-gas inlets, 202 mixed vapour outlets, 203 secondary steam imports.
The specific embodiment
The specific embodiment of the present invention is described in detail as follows with reference to accompanying drawing 1-3, but only as explanation, is not restriction the present invention.
A forced circulation heat pump low-temperature evaporation concentration and crystallization device for liquid gas interlock, is to utilize high steam, the Low Temperature Steam thermo-compression evaporation concentration and crystallization device of liquid gas linkage forced circulation.
This device comprises evaporimeter (1), steam jet ejector (2), indirect steam condenser (3), head tank (4), heating vapour-condensing flow container (5), indirect steam lime set tank (6), vavuum pump (7) and inertial gas tank (8);
Comprising again of described evaporimeter (1): inertia air inlet distribution apparatus (101), vertical array tubular heating clamber II (102), liquid gas outlet nozzle (103), vapor-liquid separation chamber (104), demister (105), liquid level gauge (106), feed liquid distribution apparatus (107), communicating pipe (108), vertical array tubular heating clamber I (109);
Wherein vapor-liquid separation chamber (104) top is provided with secondary steam outlet; The side of vapor-liquid separation chamber (104) is provided with liquid level gauge (106), vapor-liquid separation chamber (104) inner chamber top be provided with demister (105), under be provided with liquid gas outlet nozzle (103); Described liquid gas outlet nozzle (103) is communicated with the upper pipe railway carriage or compartment of vertical array tubular heating clamber II (102); On described vertical array tubular heating clamber II (102) shell side, be provided with steam inlet, and be provided with inertia air inlet distribution apparatus (101) in lower pipe railway carriage or compartment, inertia air inlet distribution apparatus (101) side is provided with inert gas import; Described vapor-liquid separation chamber (104) bottom is also communicated with the liquor inlet distribution apparatus (107) in the upper pipe of vertical array tubular heating clamber I (109) railway carriage or compartment, and is provided with liquor inlet on connecting pipeline; Described vertical array tubular heating clamber I (109) shell side bottom is provided with condensation-water drain; Between described vertical array tubular heating clamber I (109) and vertical array tubular heating clamber II (102) shell side, be provided with cross over pipe (108), and with pipeline, be connected in series between twice pipe railway carriage or compartments; Described serial connection pipeline is divided into and is put feed liquid outlet;
The top of described vapor steam blaster (2) is (201) raw steam-gas inlet, and bottom is that the outlet of (202) mixed vapour, side are (203) indirect steam import.
Wherein, in described steam jet ejector (2), raw steam inlet (201) is connected with high steam, indirect steam import (203) is communicated with the outlet at heating vapour-condensing flow container (5) top, and mixed vapour outlet (202) is communicated with the steam inlet arranging on vertical array tubular heating clamber II (102) shell side;
Described vertical array tubular heating clamber I (109) shell side bottom condensation-water drain is connected with the middle part of heating vapour-condensing flow container (5);
Described heating vapour-condensing flow container (5) bottom is provided with discharge outlet, and by pipeline, through valve, condensed water can regularly discharge; Top is provided with connected entrance, is communicated with indirect steam entrance (203).
Described head tank (4) is connected with the liquor inlet that is arranged on communicating pipe between vertical array tubular heating clamber I (109) and vapor-liquid separation chamber (104) through valve (10) by pipeline;
Described inertial gas tank (8) is connected with the inert gas import that is arranged on inertia air inlet distribution apparatus (101) side through valve (11) by pipeline;
Described indirect steam condenser (3) shell side top is provided with steam inlet, and the secondary steam outlet at Bing Yu vapor-liquid separation chamber (104) top connects, and shell side below is provided with condensation-water drain, and is connected with indirect steam lime set tank (6); In the upper pipe railway carriage or compartment at described indirect steam condenser (3) top, be provided with coolant outlet, in the lower pipe railway carriage or compartment of bottom, be provided with cooling water inlet, and be connected with cooling water through valve by pipeline.
Described indirect steam lime set tank (6) top is connected with vavuum pump (7) through valve (13) by pipeline, and bottom is provided with discharge outlet, and condensed water, can regularly discharge through valve by pipeline.
During evaporation operation, first start vavuum pump (7), make whole system in high vacuum state.Then open inlet valve (10), make feed liquid automatically by head tank (4), enter feed liquid distribution apparatus (107) under external atmosphere pressure, after distributing, feed liquid enters the tube side (can carry out one-level heating at this) of vertical array tubular heating clamber I (109), then through the lower pipe railway carriage or compartment of vertical array tubular heating clamber II (102), and under the drive of gas phase lift, enter fast the tube side (can carry out secondary heating at this) of vertical array tubular heating clamber II (102), High Temperature Gas-vapour-liquid fluid-mixing after heating enters liquid gas outlet nozzle (103) and forms spouted effect, Bing vapor-liquid separation chamber carries out vapor-liquid separation in (104).Liquid after separation, under the effect of gravity, enters vertical array tubular heating clamber II (109) again, enters circulating-heating evaporation process next time.Indirect steam after separation flows out from the indirect steam outlet on top with a small amount of inert gas.The indirect steam flowing out enters the shell side of indirect steam condenser (3), carry out energy exchange with the cold energy water of tube side, condensed water enters indirect steam lime set tank (6) by the condensation-water drain of bottom, and the not solidifying inert gas of minority is by outside vavuum pump (7) removal system.Open valve (9), the raw steam of high pressure enters from raw steam inlet (201), after spraying, enter successively the shell side of tubulation heating clamber II (102) and heating clamber I (109), carry out exchange heat with tube side low-temperature material, cooled condensed water enters heating vapour-condensing flow container (5) through valve (15).And flash distillation in lime set tank (5), steam after evaporation enters steam jet ejector by the communicating pipe on top from indirect steam entrance (203), and mix with high steam, form the shell side that low-pressure heating steam enters tubulation heating clamber II (102) and heating clamber I (109).
The running of the forced circulation heat pump low-temperature evaporation concentration and crystallization device of described liquid gas interlock, comprises the following steps:
1) first open Roots vaccum pump (7), then open vacuum valve (13), system vacuumizes processing in advance.
2) crack material inlet valve (10), enters under the effect of system inside and outside differential pressure raw material and enters evaporimeter (1) by head tank (4).
3) liquid level of observing separation chamber's liquid level gauge (106) shows, when separation chamber's liquid level gauge (106) shows the liquid level that arrives the highest setting, closes material inlet valve (10).
4) open cooling water inlet valve (14), make cooling water enter indirect steam condenser (3), wherein said indirect steam condenser (3) is vertical array tubular heat exchanger, and cooling water is walked tube side, controls cooling water flow velocity 1-2m/s.
5) crack intake valve (11), extraneous inert gas enters after inert gas adjusting device (101), expands rapidly, and promotes liquid and enter fast vapor-liquid separation chamber (104) along the tube side of vertical array tubular heating clamber II (102).Regulate intake valve (11), make inert gas air inflow be controlled at the 1-5% (percentage by volume) of indirect steam total amount.
6) observe raw steam pressure and change, when reaching design pressure, open steam valve (9), and keep raw steam pressure stable.Now, injector starts normal work: high steam enters steam jet ejector (2) by giving birth to steam-gas inlet (201), by the jet-action of steam jet ejector, after pressure and temperature decline simultaneously, as low-temperature heat thermal source, successively enter the shell side of vertical array tubular heating clamber II (102) and vertical array tubular heating clamber I (109), with liquid generation energy exchange.Fluid temperature raises gradually, and comes to life.
7) crack valve (15), makes heating steam condensate liquid under pressure reduction, enter heating vapour-condensing flow container (5), carries out flash distillation.
8) in evaporation process, the liquid level of observing liquid level gauge (106) changes, and when separation chamber's liquid level gauge 106 shows the liquid level that arrives minimum setting, opens material inlet valve (10) charging, repeating step 3).
9) when liquid all adds after evaporimeter (1), close inlet valve (10).
10) observe the variation of the upper liquid level of separation chamber's liquid level gauge (106), when liquid level is again lower than minimum lower prescribing a time limit, steam off valve (9).
11), after 3-5 minute, close vacuum valve (13); Close cooling water inlet valve (14).
12) regulate intake valve (11) slowly broken empty, after system internal pressure arrives normal pressure, open valve (12), the liquid having concentrated is drained into specified containers or be delivered to next workshop section and carry out subsequent treatment;
13) discharging is complete, whole system is added to clear water and wash.
Embodiment 1
D-pHPG evaporation and concentration, the crystal system in certain pharmaceutical factory 28% of take is example, its specific requirement is: single batch processing amount is 350Kg, and liquid evaporating temperature is less than 40 degree, and the evaporation time of staying is less than 1 hour, ultimate density is greater than 67%, steams water intensity and is greater than 200Kg/h.The specific embodiment of the present invention and technique, device parameter following (heat transfer area is difference slightly for different mother liquor primary condition differences, heat transfer coefficient):
1) first open Roots vaccum pump (7), then open vacuum valve (13), system vacuumizes processing in advance.
2), after vacuum reaches-0.095, crack material inlet valve (10), enters under the effect of system inside and outside differential pressure raw material and enters evaporimeter (1) by head tank (4).
3) observe the liquid level demonstration of separation chamber's liquid level gauge (106), (the volume that 200Kg feed liquid is shared when separation chamber's liquid level gauge (106) show to arrive the liquid level of the highest setting, on liquid level gauge, carry out in advance mark), close material inlet valve (10).
4) open cooling water inlet valve (14), make cooling water enter indirect steam condenser (3), wherein said indirect steam condenser (3) is vertical array tubular heat exchanger, heat exchange area 10-15 square metre, cooling water is walked tube side, and temperature is 0 ℃, controls cooling water flow velocity 1-2m/s.
5) crack intake valve (11), extraneous inert gas enters after inert gas adjusting device (101), promotion liquid enters vapor-liquid separation chamber (104) along the tube side of vertical array tubular heating clamber II (102), wherein said tubulation regulates intake valve (11), makes inert gas air inflow be controlled at the 1-5% (percentage by volume) of indirect steam total amount.
6) observe raw steam pressure and change, when reaching 0.5MPa (absolute pressure), open steam valve 9, and keep raw steam pressure stable (vapor (steam) temperature is 151 degree).Now, the high steam that injector starts normal work: 0.5MPa enters steam jet ejector (2) by giving birth to steam-gas inlet (201), by the jet-action of steam jet ejector, after pressure and temperature decline simultaneously, as heat source (temperature is 60-70 degree), successively enter the shell side of vertical array tubular heating clamber I (102) and vertical array tubular heating clamber II (103), with liquid generation energy exchange.Fluid temperature raises gradually, and comes to life in 39 degree left and right.
7) crack valve (15), makes to heat heating steam condensate liquid and under pressure reduction, enters heating vapour-condensing flow container (5), carries out flash distillation.
8) in evaporation process, the liquid level of observing liquid level gauge (106) changes, when separation chamber's liquid level gauge 106 shows the liquid level that arrives minimum setting (volume that 150Kg feed liquid is shared is carried out mark in advance on liquid level gauge), open material inlet valve 10 chargings, repeating step 3).
9) when 350kg liquid all adds after evaporimeter (1), close inlet valve (10).
10) observe the variation of the upper liquid level of separation chamber's liquid level gauge (106), when liquid level is again lower than minimum in limited time lower, steam off valve (9) (now steaming the water yield is just 200Kg, and quality of liquid medicine concentration reaches 67%).
11), after 3-5 minute, close vacuum valve (13); Close cooling water inlet valve (14).
12) regulate intake valve (11) slowly broken empty, after system internal pressure arrives normal pressure, open valve (12), concentrate is drained into specified containers or be delivered to next workshop section and carry out subsequent treatment;
13) discharging is complete, whole system is added to clear water and wash.
In above-described embodiment, technological parameter is: raw steam pressure 0.5MPa, heating steam temperature is 70 ℃, 39 ℃ of liquid evaporating temperatures, 10 ℃ of condensate temperatures.
Device parameter is: each Heat transfer area of evaporimeter is 5 square metres, amounts to 10 square metres; The high 6m that can be controlled in of whole evaporation equipment, vapo(u)rization system is taken up an area 4 square meters, 10 square metres of after-condenser heat transfer areas, heating vapour-condensing flow container, indirect steam lime set tank, inertial gas tank (when inert gas is air, can omit) and head tank volume are 0.5 cubic metre.
After evaporation, concentrated liquid concentration 67-80% (occurring partially crystallizable), equipment is interior without coking or crystallization wall sticking phenomenon, easy to clean.Evaporation time 50-60 minute, the steaming water yield is 200-220Kg, 0.5MPa (absolute pressure) steam consumption is about 160Kg.
Unaccomplished matter of the present invention is known technology.
Claims (1)
1. the forced circulation heat pump low-temperature evaporation concentration and crystallization device that liquid gas links, this device comprises evaporimeter, steam jet ejector, indirect steam condenser, head tank, heating vapour-condensing flow container, indirect steam lime set tank, vavuum pump and inertial gas tank;
Comprising again of described evaporimeter: inertia air inlet distribution apparatus, vertical array tubular heating clamber II, liquid gas outlet nozzle, vapor-liquid separation chamber, demister, liquid level gauge, feed liquid distribution apparatus, communicating pipe, vertical array tubular heating clamber I;
Wherein vapor-liquid separation chamber top is provided with secondary steam outlet; The side of vapor-liquid separation chamber is provided with liquid level gauge, vapor-liquid separation chamber inner chamber top be provided with demister, under be provided with liquid gas outlet nozzle; Described liquid gas outlet nozzle is communicated with the upper pipe railway carriage or compartment of vertical array tubular heating clamber II; On described vertical array tubular heating clamber II shell side, be provided with steam inlet, and be provided with inertia air inlet distribution apparatus in lower pipe railway carriage or compartment, inertia air inlet distribution apparatus side is provided with inert gas import; Described vapor-liquid separation chamber is also communicated with the liquor inlet distribution apparatus in the upper pipe of vertical array tubular heating clamber I railway carriage or compartment, and is provided with liquor inlet on connecting pipeline; Described vertical array tubular heating clamber I shell side bottom is provided with condensation-water drain; Between described vertical array tubular heating clamber I and vertical array tubular heating clamber II shell side, be provided with cross over pipe, and with pipeline, be connected in series between twice pipe railway carriage or compartments; Described serial connection pipeline is divided into and is put feed liquid outlet;
The top of the described vapor steam blaster steam-gas inlet of making a living, bottom is that mixed vapour outlet, side are indirect steam import;
Wherein, in described steam jet ejector, raw steam inlet is connected with high steam, and indirect steam import is connected with heating vapour-condensing flow container, and mixed vapour outlet is communicated with the steam inlet arranging on vertical array tubular heating clamber II shell side;
Described vertical array tubular heating clamber I shell side bottom condensation-water drain is connected with heating vapour-condensing flow container;
Described heating vapour-condensing flow container bottom is provided with discharge outlet; Top is provided with connected entrance, is communicated with steam jet ejector indirect steam entrance;
Described head tank is connected with the liquor inlet that is arranged on communicating pipe between vertical array tubular heating clamber I and vapor-liquid separation chamber by pipeline;
Described inertial gas tank is connected with the inert gas import that is arranged on inertia air inlet distribution apparatus side by pipeline;
Described indirect steam condenser shell side top is provided with steam inlet, and the secondary steam outlet at Bing Yu vapor-liquid separation chamber top connects, and shell side below is provided with condensation-water drain, and is connected with indirect steam lime set tank; In the upper pipe railway carriage or compartment of described indirect steam condenser overhead, be provided with coolant outlet, in the lower pipe railway carriage or compartment of bottom, be provided with cooling water inlet, and be connected with cooling water by pipeline;
Described indirect steam lime set tank top is connected with vavuum pump by pipeline, and bottom is provided with discharge outlet.
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| CN108245921A (en) * | 2018-03-20 | 2018-07-06 | 河北鑫淘源环保科技有限公司 | The evaporation and crystallization system and process of one kind 5,5- Dimethyl Hydan mother liquors |
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| CN108245921A (en) * | 2018-03-20 | 2018-07-06 | 河北鑫淘源环保科技有限公司 | The evaporation and crystallization system and process of one kind 5,5- Dimethyl Hydan mother liquors |
| CN108245921B (en) * | 2018-03-20 | 2024-03-12 | 河北鑫淘沅医药科技有限公司 | Evaporation crystallization system and process method of 5, 5-dimethyl hydantoin mother liquor |
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Application publication date: 20140806 Assignee: HANDAN KANGRUI BIOTECHNOLOGY CO., LTD. Assignor: Hebei University of Technology Contract record no.: 2015130000142 Denomination of invention: Low-temperature evaporation, concentration and crystallization device of gas-liquid linkage forced circulation heat pump Granted publication date: 20150805 License type: Exclusive License Record date: 20151015 |
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