CN107308667A - A kind of isothermal economic benefits and social benefits concentration unit and its method for concentration - Google Patents

A kind of isothermal economic benefits and social benefits concentration unit and its method for concentration Download PDF

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Publication number
CN107308667A
CN107308667A CN201710629053.3A CN201710629053A CN107308667A CN 107308667 A CN107308667 A CN 107308667A CN 201710629053 A CN201710629053 A CN 201710629053A CN 107308667 A CN107308667 A CN 107308667A
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China
Prior art keywords
effect
tube side
concentration
heat exchanger
tube
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CN201710629053.3A
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CN107308667B (en
Inventor
杨许作
杨雄辉
杨周
吴海滔
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FOSHAN DEZHONG PHARMACEUTICAL MACHINERY Co Ltd
Sinopharm Dezhong Foshan Pharmaceutical Co Ltd
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FOSHAN DEZHONG PHARMACEUTICAL MACHINERY Co Ltd
Sinopharm Dezhong Foshan Pharmaceutical Co Ltd
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Publication of CN107308667A publication Critical patent/CN107308667A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D1/00—Evaporating
    • B01D1/0082—Regulation; Control
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D1/00—Evaporating
    • B01D1/0064—Feeding of liquid into an evaporator
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D1/00—Evaporating
    • B01D1/06—Evaporators with vertical tubes
    • B01D1/065—Evaporators with vertical tubes by film evaporating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D1/00—Evaporating
    • B01D1/06—Evaporators with vertical tubes
    • B01D1/12—Evaporators with vertical tubes and forced circulation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D1/00—Evaporating
    • B01D1/26—Multiple-effect evaporating

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)

Abstract

The invention discloses a kind of isothermal economic benefits and social benefits concentration unit and its method for concentration, including economic benefits and social benefits concentration systems and indirect steam recompression system, the economic benefits and social benefits concentration systems include head tank, preheating unit, isothermal concentration tower body, consubstantiality economic benefits and social benefits heater from upstream to downstream and receive cream tank successively；Indirect steam steam collecting cavity is formed between the isothermal concentration tower body and consubstantiality economic benefits and social benefits heater；I I tube side of effect and I II tube side of effect are falling film concentration module, and described II imitates I tube side concentrates module for forced circulation.Integrated falling film concentration module and forced circulation concentrate module, the single thickener of existing capability is different from, without setting two kinds of thickeners of falling film concentration machine and forced circulation thickener, input cost and space-consuming is saved, knockout drum need not be set, the conveyance conduit between each effect journey is saved；And each module can each separately adjustable tube side concentration speed and concentration amount to adapt to different production requirements, improve and use flexibility.

Description

A kind of isothermal economic benefits and social benefits concentration unit and its method for concentration
Technical field
The present invention relates to concentration and evaporation equipment technical field, more particularly to a kind of isothermal economic benefits and social benefits concentration unit and its concentration side Method.
Background technology
Being presently used for medicine, the liquid concentration evaporation technique of food mainly has falling film concentration and forced circulation to concentrate two kinds. Falling film concentration is to add feed liquid from falling film evaporator heating chamber upper tube box, through liquid distribution and film formation device, is evenly distributed to In each heat exchanger tube, under gravity and airflow function, flowed from top to bottom into uniformly membranaceous；And forced circulation concentration is then to utilize to follow Ring pump makes feed liquid forced flow in equipment.Falling film concentration energy consumption is small but easy fouling, and forced circulation concentrates less scaling but energy consumption Greatly.Therefore in actual production, usually set multiple falling film evaporators and multiple forced-circulation evaporators to integrate and use, but so Input cost is big, and, it is necessary to set substantial amounts of knockout drum and conveyance conduit, space-consuming is big, is not suitable for small lot production.Moreover, Due to dirty containing some macromolecular substances (such as polysaccharide, starch, colloid), band particle fouling and biology more than extracts of Chinese herbal medicine Dirty mixture etc., therefore Chinese herbal medicine solution easily condenses and causes fouling, discomfort uses falling film concentration, and now Chinese herbal medicine is extracted in the industry The big forced circulation concentration of many Energy in use of liquid.
The content of the invention
It is an object of the invention to propose that a kind of integrated falling film concentration and forced circulation concentration are integrated, input cost is saved And space-consuming, using flexible, it is adaptable to the isothermal economic benefits and social benefits concentration unit and its method for concentration of extracts of Chinese herbal medicine concentration.
For up to this purpose, the present invention uses following technical scheme：
A kind of isothermal economic benefits and social benefits concentrate unit, including economic benefits and social benefits concentration systems and indirect steam recompression system, and the economic benefits and social benefits are dense Compression system and indirect steam recompression system connection, the economic benefits and social benefits concentration systems include head tank from upstream to downstream successively, pre- Hot cell, isothermal concentration tower body, consubstantiality economic benefits and social benefits heater and receipts cream tank；
The isothermal concentration tower body is socketed on the outside of the consubstantiality economic benefits and social benefits heater, the isothermal concentration tower body and consubstantiality Indirect steam steam collecting cavity is formed between economic benefits and social benefits heater；
The consubstantiality economic benefits and social benefits heater includes main casing, upper cover, upper perforated plate, lower perforated plate and Duo Gen heat exchanger tubes, the master The upper end of housing sets the upper perforated plate, and the lower end of the main casing sets the lower perforated plate, and the upper end of the main casing It is tightly connected with upper cover；The upper perforated plate and lower perforated plate are distributed with multiple heat exchanger tube mounting holes, and many heat exchanger tubes are by changing Heat pipe mounting hole is vertically installed between upper perforated plate and lower perforated plate in array；
Also include upper block plate and lower block plate, the upper block plate is arranged at the inner chamber of upper cover and by upper cover Chamber is divided into three upper annular seal spaces, and the lower block plate is arranged at the bottom of isothermal concentration tower body and is divided into three concentrations Pond, the consubstantiality economic benefits and social benefits heater is arranged at the top of the lower block plate；And above and below the upper block plate and lower block plate It is oppositely arranged the tube side of consubstantiality economic benefits and social benefits heater being divided into the tube side of I effect I, I II tube side of effect and II I tube side of effect；
The upper annular seal space of I I tube side of effect and I II tube side of effect is equipped with water-locator, I I tube side of effect and I II tube side of effect For falling film concentration module, II effect, I tube side is that forced circulation concentrates module.
Preferably, the upper annular seal space of I effect, I tube side is connected by pipeline with preheating unit, and described I imitates the dense of I tube side Contracting pond is connected by the upper annular seal space of pipeline and I II tube side of effect, and the concentration basin of I effect, II tube side is managed by pipeline and II effect I The upper annular seal space connection of journey, the concentration basin of II effect, I tube side is connected by pipeline with cream tank is received.
Preferably, the water-locator includes liquid reserve tank and feed tube, and the feed tube connects with liquid reserve tank, and it is described enter The sealed end of liquid pipe extends to the inside of liquid reserve tank, and one section positioned at liquid reserve tank of the feed tube is provided with multiple inlet openings；
Liquid branch pipe is matched somebody with somebody in the bottom of the liquid reserve tank provided with many, described in many with heat exchanger tube described in liquid branch pipe and Duo Gen one by one It is aligned and in the corresponding heat exchanger tube with the insertion of liquid branch pipe；The sealed bottom with liquid branch pipe, it is described to match somebody with somebody liquid branch The side wall of pipe is provided with multiple spray holes.
Preferably, the economic benefits and social benefits concentration systems also include falling liquid film circulating pump, falling liquid film regulating valve, the first forced circulation pump, the One forced circulation regulating valve and Pump for giving-out；
The inlet of the falling liquid film circulating pump is connected by the concentration basin of pipeline and I I tube side of effect, the falling liquid film circulating pump Liquid outlet connected by the openend of feed tube of pipeline with the water-locator positioned at I II tube side of effect, and the falling liquid film regulating valve is entered Liquid mouthful is connected by the concentration basin of pipeline and I II tube side of effect, and the liquid outlet of the falling liquid film regulating valve is circulated by pipeline and falling liquid film The inlet connection of pump；
The inlet of first forced circulation pump is connected by the concentration basin of pipeline and I II tube side of effect, the last the first The liquid outlet of circulating pump processed is connected by the upper annular seal space of pipeline and II I tube side of effect, and the first forced circulation regulating valve is entered Liquid mouthful is connected by the concentration basin of pipeline and II I tube side of effect, the liquid outlet of the first forced circulation regulating valve by pipeline and The inlet connection of first forced circulation pump；
The inlet of the Pump for giving-out is connected by the concentration basin of pipeline and II I tube side of effect, the liquid outlet of the Pump for giving-out Connected by pipeline with cream tank is received.
Preferably, the economic benefits and social benefits concentration systems also include falling liquid film frequency converter and densitometer, the falling liquid film frequency converter and falling liquid film Circulating pump is electrically connected, the rotating speed of the falling liquid film Frequency Converter Control falling liquid film circulating pump；
The test side of the densitometer is connected with the concentration basin of II I tube side of effect.
Preferably, the indirect steam recompression system also includes centrifugal compressor, heating steam output pipe and secondary steaming Vapour input pipe, one end of the indirect steam input pipe is connected with the input port of centrifugal compressor, the indirect steam input pipe The other end and isothermal concentration tower body connect, described one end for heating steam output pipe is connected with the delivery outlet of centrifugal compressor；
Also include warming enclosure body, the warming enclosure body adds around the outside on the top for being arranged at main casing so as to be formed Warm annular seal space, side corresponding with the warming enclosure body wall of the main casing inputs through hole, the heating provided with multiple indirect steams The other end of steam output pipe is connected with warming enclosure body；
The middle part of the lower block plate is arranged at the carrying convex surface provided with carrying convex surface, the consubstantiality economic benefits and social benefits heater On.
Preferably, the preheating unit includes liquid feeding pump, raw material regulating valve, output three-way control valve, first-class heat exchanger, two Level heat exchanger, condensation water storage tank, water purification pot, input three-way control valve and water purification control valve, the inlet of the raw material regulating valve Connected by pipeline with head tank, the liquid outlet of the raw material regulating valve is connected by pipeline with the inlet of liquid feeding pump, described The liquid outlet of liquid feeding pump is connected with the inlet of output three-way control valve, and the first liquid outlet of the output three-way control valve passes through Pipeline is connected with the openend of the feed tube of the water-locator positioned at I I tube side of effect；
First inlet of the input three-way control valve is connected by pipeline with water purification pot, the input three-way control valve The second inlet connected by pipeline with the liquid outlet of raw material regulating valve, it is described input three-way control valve liquid outlet pass through pipe Road is connected with the inlet of liquid feeding pump；The inlet of the water purification control valve is connected by the concentration basin of pipeline and II I tube side of effect, The liquid outlet of the water purification control valve is connected by pipeline with condensation water storage tank；
The consubstantiality economic benefits and social benefits heater also includes condensate output transistor, and one end of the condensate output transistor and main casing connect Logical, the other end of the condensate output transistor is connected with the working medium inlet of first-class heat exchanger, the work of the first-class heat exchanger Make media outlet to connect with condensation water storage tank by pipeline, the inlet of the first-class heat exchanger passes through pipeline and output threeway control The second liquid outlet connection of valve processed, the inlet of the secondary heat exchanger is connected by pipeline with the liquid outlet of first-class heat exchanger, The liquid outlet of the secondary heat exchanger is connected by pipeline with the first liquid outlet of the output three-way control valve, and described two grades are changed The working medium inlet of hot device is discharged by the external boiler of pipeline, the working medium exit port steam-out (SO) of the secondary heat exchanger Pipe.
Preferably, the consubstantiality economic benefits and social benefits heater also includes on-condensible gas efferent duct and multiple intercepter plates, the fixed gas Body efferent duct is connected with main casing；
Multiple intercepter plates are arranged at the inside of main casing, and the side of multiple intercepter plates is interior with main casing Wall is connected, the S-shaped arrangement in gap formed between the opposite side and main casing of multiple intercepter plates.
Preferably, the isothermal economic benefits and social benefits concentrate the method for concentration of unit, including solution concentration process and indirect steam circulation Process：
The solution concentration process comprises the following steps：
Step A, the cryogenic fluid being stored in head tank is heated into after pyrosol by preheating unit, double into consubstantiality Imitate I I tube side of effect of heater；
Step B, pyrosol enters after the upper annular seal space of I I tube side of effect, and pyrosol is averaged by the water-locator of I I tube side of effect Be assigned in each heat exchanger tube of the tube side of I effect I, heat exchanger tube pyrosol under gravity, flow to the pipe of I effect I with membranaceous The concentration basin of journey, carries out falling film concentration；
Step C, falling liquid film circulating pump extracts the pyrosol in the concentration basin of I I tube side of effect and is transported to the pipe of I effect II Pyrosol is evenly distributed in each heat exchanger tube of the tube side of I effect II by the upper annular seal space of journey, the water-locator of I II tube side of effect, The pyrosol of heat exchanger tube under gravity, with the membranaceous concentration basin for flowing to the tube side of I effect II, carries out falling film concentration；
When the pyrosol in the concentration basin of I II tube side of effect is not up to falling liquid film requirement concentration, falling liquid film regulating valve is opened, drop The upper annular seal space that pyrosol in the concentration basin of I II tube side of effect is transmitted back to the tube side of I effect II is carried out falling film concentration by film circulating pump, Untill the pyrosol in the concentration basin of I II tube side of effect reaches falling liquid film requirement concentration；
Step D, the pyrosol that the first forced circulation pump is up to falling liquid film requirement concentration is delivered to the upper close of the tube side of II effect I Chamber is sealed, then forced circulation concentration is carried out in the heat exchanger tube of II I tube side of effect, the high-temp liquid after concentration converges in the pipe of II effect I The concentration basin of journey；
When the pyrosol in the concentration basin of II I tube side of effect is not up to compulsive requirement concentration, the regulation of the first forced circulation Valve is opened, and the pyrosol in the concentration basin of II I tube side of effect is transmitted back to the upper annular seal space of the tube side of II effect I by the first forced circulation pump Forced circulation concentration is carried out, untill the pyrosol in the concentration basin of II I tube side of effect reaches liquid requirement concentration；
Step E, Pump for giving-out be up to out liquid requirement concentration pyrosol be delivered to receipts cream tank stored；
The indirect steam cyclic process includes：
First, the indirect steam in isothermal concentration tower body enters centrifugal compressor compression by indirect steam input pipe and added Wen Hou, then enter main casing by heating steam output pipe, carry out heat exchange with the heat exchanger tube in main casing；
Then, carry out the indirect steam after heat exchange and be condensed into liquid, condensed water delivery pipe is delivered to condensation water storage tank, And on-condensible gas is then discharged through on-condensible gas efferent duct.
Preferably, in addition to cleaning process：
When pyrosol is all delivered to I II tube side of effect from I I tube side of effect, i.e., the concentration basin of I I tube side of effect is molten without high temperature During liquid, the pure water for being stored in water purification pot is delivered to the upper annular seal space of the tube side of I effect I, to the I effect upper annular seal space of I tube side, heat exchanger tube and Concentration basin is rinsed；
When pyrosol is all delivered to II I tube side of effect from I II tube side of effect, i.e., the concentration basin of I II tube side of effect is without high temperature During solution, falling liquid film circulating pump extracts the pure water in the concentration basin of I I tube side of effect and is transported to the upper sealing of the tube side of I effect II Chamber, is rinsed to upper annular seal space, heat exchanger tube and the concentration basin of I II tube side of effect；
When pyrosol is all delivered to receipts cream tank from II I tube side of effect, i.e., the concentration basin of II I tube side of effect is without pyrosol When, the first forced circulation pump extracts the pure water in the concentration basin of I II tube side of effect and is transported to the upper sealing of the tube side of II effect I Chamber, is rinsed to upper annular seal space, heat exchanger tube and the concentration basin of II I tube side of effect；
After II effect I tube side flushing is finished, water purification control valve is opened, and is delivered in the pure water of the concentration basin of II I tube side of effect cold Stored in solidifying water storage tank.
Isothermal economic benefits and social benefits concentration unit provided with concentration of the economic benefits and social benefits concentration systems for Chinese herbal medicine solution, concentration compared with Low Chinese herbal medicine stoste is stored in the head tank, during concentration Chinese herbal medicine stoste first pass through preheating unit heated in order to It is concentrated by evaporation, then the Chinese herbal medicine stoste of high temperature enters in consubstantiality economic benefits and social benefits heater, and sequentially passes through the tube side of I effect I, I II pipe of effect Journey and II I tube side of effect, first carry out carrying out forced circulation concentration after falling film concentration, the higher Chinese herbal medicine slurries of concentration are made and convey Stored to cream tank is received.Integrated falling film concentration module and forced circulation concentrate module, are different from the single concentration of existing capability Machine, without setting two kinds of thickeners of falling film concentration machine and forced circulation thickener, saves input cost and space-consuming, without setting Knockout drum is put, the conveyance conduit between each effect journey is saved；And each module can the concentration speed of each separately adjustable tube side and dense Contracting amount is to adapt to different production requirements, and raising uses flexibility.
Brief description of the drawings
The present invention will be further described for accompanying drawing, but the content in accompanying drawing does not constitute any limitation of the invention.
Fig. 1 is the isothermal economic benefits and social benefits concentration unit structural representation of one of embodiment of the invention；
Fig. 2 is the isothermal economic benefits and social benefits concentration unit top view of one of embodiment of the invention；
Fig. 3 is the economic benefits and social benefits upgrading unit front view structure figure of one of embodiment of the invention；
Fig. 4 is the economic benefits and social benefits upgrading unit plan structure enlarged drawing of one of embodiment of the invention；
Fig. 5 is the half-sectional structure chart of water-locator of one of embodiment of the invention；
Fig. 6 is the water-locator face upwarding assumption diagram of one of embodiment of the invention；
Fig. 7 is the water-locator use state figure of one of embodiment of the invention；
Fig. 8 is one of embodiment of the invention with liquid manifold configuration figure；
Fig. 9 is the preheating unit structure chart of one of embodiment of the invention.
Wherein：Consubstantiality economic benefits and social benefits heater 1；Head tank 2；Receive cream tank 5；Main casing 11；Upper cover 12；Isothermal concentrates tower body 13；Upper perforated plate 14；Lower perforated plate 15；Heat exchanger tube 16；Upper block plate 121；Lower block plate 132；I I tube side 81 of effect；I II tube side 82 of effect； II I tube side 83 of effect；Water-locator 122；Liquid reserve tank 123；Feed tube 124；With liquid branch pipe 125；Inlet opening 126；Spray hole 127；Drop Film circulating pump 4；Falling liquid film regulating valve 41；First forced circulation pump 51；First forced circulation regulating valve 52；Pump for giving-out 53；Falling liquid film becomes Frequency device 42；Densitometer 54；Centrifugal compressor 6；Heat steam output pipe 61；Indirect steam input pipe 62；Warming enclosure body 17；Two Secondary steam steam collecting cavity 131；Carry convex surface 133；Liquid feeding pump 21；Raw material regulating valve 22；Export three-way control valve 31；First-class heat exchanger 32；Secondary heat exchanger 33；Condense water storage tank 34；Condensate output transistor 111；Water purification pot 7；Input three-way control valve 71；Water purification control Valve 72 processed；On-condensible gas efferent duct 112；Intercepter plate 19.
Embodiment
Further illustrate technical scheme below in conjunction with the accompanying drawings and by embodiment.
The isothermal economic benefits and social benefits concentration unit of the present embodiment, as shown in Figure 1, Figure 3, including economic benefits and social benefits concentration systems and indirect steam are again Compressibility, economic benefits and social benefits concentration systems and indirect steam recompression the system connection, the economic benefits and social benefits concentration systems are from upstream under Trip includes head tank 2, preheating unit, isothermal concentration tower body 13, consubstantiality economic benefits and social benefits heater 1 and receives cream tank 5 successively；
As shown in figure 3, the isothermal concentration tower body 13 is socketed on the outside of the consubstantiality economic benefits and social benefits heater 1, the isothermal Concentrate and indirect steam steam collecting cavity 131 is formed between tower body 13 and consubstantiality economic benefits and social benefits heater 1；
The consubstantiality economic benefits and social benefits heater 1 includes main casing 11, upper cover 12, upper perforated plate 14, lower perforated plate 15 and Duo Gen heat exchange Pipe 16, the upper end of the main casing 11 sets the upper perforated plate 14, and the lower end of the main casing 11 sets the lower perforated plate 15, and And the upper end of the main casing 11 and upper cover 12 are tightly connected；The upper perforated plate 14 and lower perforated plate 15 are distributed with multiple heat exchange Pipe mounting hole, many heat exchanger tubes 16 by heat exchanger tube mounting hole in array be vertically installed at upper perforated plate 14 and lower perforated plate 15 it Between；
Also include upper block plate 121 and lower block plate 132, the upper block plate 121 is arranged at the inner chamber of upper cover 12 simultaneously The inner chamber of upper cover 12 is divided into three upper annular seal spaces, the lower block plate 132 is arranged at the bottom that isothermal concentrates tower body 13 And three concentration basins are divided into, the consubstantiality economic benefits and social benefits heater 1 is arranged at the top of the lower block plate 132；And institute State block plate 121 and lower block plate is oppositely arranged the tube side of consubstantiality economic benefits and social benefits heater 1 being divided into the pipe of I effect I about 132 The tube side 82 of the effect of journey 81, I II and II I tube side 83 of effect, as shown in Figure 2, Figure 4 shows；
As shown in figure 3, the upper annular seal space of the tube side 81 of I effect I and I II tube side 82 of effect is equipped with water-locator 122, described I It is falling film concentration module to imitate I tube side 81 and I II tube side 82 of effect, and II effect, I tube side 83 is that forced circulation concentrates module.
Preferably, as shown in Fig. 2 the upper annular seal space of I effect, I tube side 81 is connected by pipeline with preheating unit, described I The concentration basin for imitating I tube side 81 is connected by the upper annular seal space of pipeline and I II tube side 82 of effect, the concentration basin of I effect, II tube side 82 Connected by the upper annular seal space of pipeline and II I tube side 83 of effect, the concentration basin of II effect, I tube side 83 passes through pipeline and receipts cream tank 5 Connection.
Isothermal economic benefits and social benefits concentration unit provided with concentration of the economic benefits and social benefits concentration systems for Chinese herbal medicine solution, concentration compared with Low Chinese herbal medicine stoste is stored in the head tank 2, during concentration Chinese herbal medicine stoste first pass through preheating unit heated so as to In evaporation and concentration, then the Chinese herbal medicine stoste of high temperature enters in consubstantiality economic benefits and social benefits heater 1, and sequentially passes through the tube side 81 of I effect I, I effect II tube side 82 and II I tube side 83 of effect, first carry out carrying out forced circulation concentration after falling film concentration, the higher Chinese medicinal herbs plasm of concentration are made Liquid is simultaneously delivered to receipts cream tank 5 and stored.
The upper cover 12 of the consubstantiality economic benefits and social benefits heater 1 is the input port of Chinese herbal medicine solution, in the Chinese herbal medicine of upper cover 12 Solution is flowed into each heat exchanger tube 16 to be evaporated concentration along upper perforated plate 14, and the Chinese herbal medicine solution after concentration converges in lower envelope In case 13.Upper block plate 121 and lower block plate 132 that the consubstantiality economic benefits and social benefits heater 1 is oppositely arranged above and below, consubstantiality is double The tube side of effect heater 1 is divided into the tube side 82 of the tube side 81, I of I effect I effect II and II I tube side 83 of effect；Each tube side includes from top to bottom The heat exchanger tube 16 in correspondence part space between one upper annular seal space, a concentration basin and upper annular seal space and concentration basin, so that Many heat exchanger tubes 16 in main casing 11 are divided into three regions, so that Chinese herbal medicine solution is carried out in consubstantiality economic benefits and social benefits heater 1 Multiple circulating and evaporating concentration, extends the evaporating concentration process of Chinese herbal medicine solution without multiple consubstantiality economic benefits and social benefits heaters 1, saves into Sheet and space.
It is additionally, since more than extracts of Chinese herbal medicine containing some macromolecular substances (such as polysaccharide, starch, colloid), band particle Fouling and biofouling mixture etc., therefore Chinese herbal medicine solution easily condenses and causes fouling.Therefore, the isothermal economic benefits and social benefits concentration The falling film concentration of easy fouling is arranged on the tube side 81 of I effect I and I II tube side 82 of effect, the Chinese herbal medicine relatively low for concentrating concentration by unit Stoste, the relatively low Chinese herbal medicine stoste of concentration is less scaling；The water-locator 122 can change Chinese herbal medicine stoste mean allocation to each Heat pipe 16, concentration basin is flowed in the Chinese herbal medicine stoste of heat exchanger tube 16 with membranaceous under gravity.The evaporation speed of falling film concentration machine Rate is slow, and in order to which concentration is once up to standard, heat exchanger tube 16 is longer；But the evaporation rate of forced circulation thickener is fast, and heat exchanger tube 16 is shorter； Therefore, falling film concentration module is set to the tube side 81 of I effect I and I II tube side 82 of effect the two pipes by the consubstantiality economic benefits and social benefits heater 1 Journey, forced circulation concentration module only needs a tube side, so as to both shorten the length of heat exchanger tube 16, it is to avoid forced circulation concentrates module Energy consumption is big, and the concentration quality of falling film concentration module is can guarantee that again.
And the strong forced circulation concentration of antiscale ability is arranged on the tube side 83 of II effect I, for concentrating, concentration is higher and easy knot Part Chinese herbal medicine solution in the Chinese herbal medicine solution of dirt, Chinese herbal medicine solution free-falling in heat exchanger tube 16 of full packages, dropping process Heated vaporization, so that Chinese herbal medicine solution sprays at a high speed concentration basin in the case where the saturated gas of expansion is promoted.The consubstantiality economic benefits and social benefits heating The integrated falling film concentration module of device 1 and forced circulation concentration module, are different from the single thickener of existing capability, without setting falling liquid film Two kinds of thickeners of thickener and forced circulation thickener, save input cost and space-consuming, without setting knockout drum, save each Imitate the conveyance conduit between journey；And each module can each separately adjustable tube side concentration speed and concentration amount it is different to adapt to Production requirement, raising uses flexibility.
Preferably, as shown in figure 5, the water-locator 122 includes liquid reserve tank 123 and feed tube 124, the feed tube 124 Connected with liquid reserve tank 123, and the sealed end of the feed tube 124 extends to the inside of liquid reserve tank 123, the feed tube 124 One section positioned at liquid reserve tank 123 be provided with multiple inlet openings 126；
As shown in fig. 6, liquid branch pipe 125 is matched somebody with somebody in the bottom of the liquid reserve tank 123 provided with many, liquid branch pipe 125 is matched somebody with somebody described in many Be aligned one by one with many heat exchanger tubes 16 and it is described inserted with liquid branch pipe 125 in the corresponding heat exchanger tube 16, such as Fig. 7 institutes Show；The sealed bottom with liquid branch pipe 125, the side wall with liquid branch pipe 125 is provided with multiple spray holes 127, such as Fig. 5 institutes Show.
The water-locator 122 is a containment housing, and Chinese herbal medicine solution is inputted from the feed tube 124, and passes through feed liquor Hole 126 flows into the inside of the liquid reserve tank 123, then by flowing to each heat exchanger tube 16 with liquid branch pipe 125.Can be by adjusting Save the liquid inlet volume of the feed tube 124 to adjust the pressure of Chinese herbal medicine solution in the liquid reserve tank 123, so as to change with liquid branch pipe 125 spouting liquid, and then reach the wetting amount for controlling the heat exchanger tube 16, that is, control the initial thickness of the liquid film in heat exchanger tube 16 Degree, makes during the top of liquid film from heat exchanger tube 16 flow to bottom, although the thickness of liquid film is thinning because evaporating, but flow to bottom When still suffer from very thin one layer, both improved the evaporation rate of liquid film, the generation of dry wall phenomenon and fouling avoided again.
The one end being located in liquid reserve tank 123 sealing of the feed tube 124, and it is located at one section of liquid reserve tank 123 and sets There are multiple inlet openings 126, so that Chinese herbal medicine solution can be flowed to equably in whole liquid reserve tank 123, it is to avoid the liquid reserve tank 123 Chinese herbal medicine solution skewness and cause the Chinese herbal medicine solution for flowing to each heat exchanger tube 16 unequal, and secondary pressurized can be played Effect, expand Chinese herbal medicine solution spray regime.The sealed bottom with liquid branch pipe 125, the side with liquid branch pipe 125 Face is provided with multiple spray holes 127, and Chinese herbal medicine solution sprays to the side wall of heat exchanger tube 16 from the side with liquid branch pipe 125, so more had Liquid film is formed beneficial on the top of heat exchanger tube 16；If Chinese herbal medicine solution directly sprays to heat exchanger tube 16 from the bottom with liquid branch pipe 125 Interior, then the position reduction at film forming, causes the top of heat exchanger tube 16 to occur dry wall phenomenon.
Preferably, as shown in figure 8, the side wall with liquid branch pipe 125 is vertically arranged multiple spray holes 127, so that Chinese herbal medicine solution sprays along the tangent line with the side wall of liquid branch pipe 125, and confluxes in the shape of a spiral film forming in the inwall of heat exchanger tube 16, both really The top for being responsible to replace heat pipe 16 is moistened completely, be can ensure that the thickness of liquid film to be formed is uniform again, is difficult to form bubble inside liquid film.
Preferably, as shown in Figures 2 to 4, the economic benefits and social benefits concentration systems also include falling liquid film circulating pump 4, falling liquid film regulating valve 41, First forced circulation pump 51, the first forced circulation regulating valve 52 and Pump for giving-out 53；
The inlet of the falling liquid film circulating pump 4 is connected by the concentration basin of pipeline and I I tube side 81 of effect, the falling liquid film circulation The liquid outlet of pump 4 is connected by the openend of pipeline with the feed tube 124 of the water-locator 122 positioned at I II tube side 82 of effect, the drop The inlet of diaphragm control valve 41 is connected by the concentration basin of pipeline and I II tube side 82 of effect, the liquid outlet of the falling liquid film regulating valve 41 Connected by pipeline with the inlet of falling liquid film circulating pump 4；
The inlet of first forced circulation pump 51 is connected by the concentration basin of pipeline and I II tube side 82 of effect, and described the The liquid outlet of one forced circulation pump 51 is connected by the upper annular seal space of pipeline and II I tube side 83 of effect, and first forced circulation is adjusted The inlet for saving valve 52 is connected by the concentration basin of pipeline and II I tube side 83 of effect, and the first forced circulation regulating valve 52 goes out Liquid mouthful is connected by the inlet of pipeline and the first forced circulation pump 51；
The inlet of the Pump for giving-out 53 is connected by the concentration basin of pipeline and II I tube side 83 of effect, the Pump for giving-out 53 Liquid outlet is connected by pipeline with cream tank 5 is received.
Chinese herbal medicine stoste imitates I tube side 81 after preliminary falling film concentration into the Chinese herbal medicine solution that concentration is relatively low, the drop I Film circulating pump 4 extract I effect I tube side 81 concentration basin Chinese herbal medicine solution and be delivered to the upper annular seal space of the tube side 82 of I effect II with Further falling film concentration.Preferably, the concentration basin of I II tube side 82 of effect is provided with liquid level gauge, for detecting I concentration for imitating II tube side 82 The Chinese herbal medicine solution reserves in pond.When the liquid level of Chinese herbal medicine solution is in low level, falling liquid film regulating valve 41 is closed, described Falling liquid film circulating pump 4 extracts the Chinese herbal medicine solution in the concentration basin of I I tube side 81 of effect；When the liquid level of Chinese herbal medicine solution is in high-order, Falling liquid film regulating valve 41 is opened, and Chinese herbal medicine solution to I effect II that the falling liquid film circulating pump 4 extracts I concentration basin for imitating II tube side 82 is managed The upper annular seal space of journey 82 is with further falling film concentration, it is to avoid when the Chinese herbal medicine solution reserves of the concentration basin of I II tube side 82 of effect are excessive Influence indirect steam discharge, and prevent during overfill that Chinese herbal medicine solution crosses lower block plate 132 to flow in other concentration basin.
First forced circulation pump 51 extracts the Chinese herbal medicine solution in the concentration basin of I II tube side 82 of effect and is delivered to II effect The upper annular seal space of I tube side 83 is to carry out preliminary forced circulation concentration.Preferably, the concentration basin of II I tube side 83 of effect is provided with liquid level gauge, Chinese herbal medicine solution reserves for detecting II concentration basin for imitating I tube side 83.When the liquid level of Chinese herbal medicine solution is in low level, first Forced circulation regulating valve 52 is closed, and first forced circulation pump 51 is extracted in I concentration basin for imitating II tube side 82 Chinese herbal medicine solution；When the liquid level of Chinese herbal medicine solution is in high-order, the first forced circulation regulating valve 52 is opened, and described first forces The Chinese herbal medicine solution that circulating pump 51 extracts II concentration basin for imitating I tube side 83 simultaneously imitates the upper annular seal space of I tube side 83 to enter one to II Walk forced circulation concentration, it is to avoid influence indirect steam discharge when the Chinese herbal medicine solution reserves of the concentration basin of II I tube side 83 of effect are excessive, Flowed to preventing during overfill that Chinese herbal medicine solution crosses lower block plate 132 in other concentration basin.
When the Chinese herbal medicine solution of the concentration basin of II I tube side 83 of effect reaches liquid requirement concentration, the Pump for giving-out 53 is extracted The Chinese herbal medicine solution of the concentration basin of II I tube side 83 of effect is stored to cream tank 5 is received.
Preferably, the bottom of three concentration basins is equipped with slag-drip opening, and the bottom of the concentration basin is deposited on for discharging The dregs of a decoction, it is to avoid the dregs of a decoction block pipeline.
Preferably, as shown in figure 3, the economic benefits and social benefits concentration systems also include falling liquid film frequency converter 42 and densitometer 54, the drop Film frequency converter 42 and falling liquid film circulating pump 4 are electrically connected, the rotating speed of the control falling liquid film of falling liquid film frequency converter 42 circulating pump 4；The density The test side of meter 54 is connected with the concentration basin of II I tube side 83 of effect.The rotating speed of the control falling liquid film of falling liquid film frequency converter 42 circulating pump 4, The flow of falling liquid film circulating pump 4 is controlled in the range of 18-36t/h, then control the thickness of film, make the wetting amount of heat exchanger tube 16 Suitably, it is to avoid dry wall phenomenon occurs.The densitometer 54 is used to detect that the Chinese herbal medicine solution of the concentration basin in II I tube side 83 of effect is close Degree, judges whether to reach liquid requirement, carries highly enriched accurate reliability.If it is close that the density of Chinese herbal medicine solution is less than liquid requirement Degree then continues forced circulation concentration in II I tube side 83 of effect of consubstantiality economic benefits and social benefits heater 1, if the density of Chinese herbal medicine solution is equal to or high In going out liquid requirement density and be then delivered to receipts cream tank 5 to be stored.
Preferably, as shown in Figure 1 and Figure 2, the indirect steam recompression system also includes centrifugal compressor 6, heating steam Efferent duct 61 and indirect steam input pipe 62, one end of the indirect steam input pipe 62 and the input port of centrifugal compressor 6 connect Logical, the other end of the indirect steam input pipe 62 is connected with isothermal concentration tower body 13, and the one of the heating steam output pipe 61 End is connected with the delivery outlet of centrifugal compressor 6；
As shown in figure 3, also including warming enclosure body 17, the warming enclosure body 17 is around the top for being arranged at main casing 11 Outside so as to form heating annular seal space, side corresponding with warming enclosure body 17 wall of the main casing 11 secondary steams provided with multiple Vapour inputs through hole, and the other end of the heating steam output pipe 61 is connected with warming enclosure body 17；In the lower block plate 132 Portion is arranged on the carrying convex surface 133 provided with carrying convex surface 133, the consubstantiality economic benefits and social benefits heater 1.
The indirect steam recompression system is used to collect the indirect steam for recycling concentration to produce.The centrifugal compressor 6 by compressing heating air to the heating conveying heating steam of steam output pipe 61, and these heating steam are with heating steam output Pipe 61 enters warming enclosure body 17, and is entered by indirect steam input through hole inside main casing 11, heats each heat exchanger tube 16 Interior Chinese herbal medicine solution so that the part Chinese herbal medicine solution heating vaporization in heat exchanger tube 16, produces secondary steam in heat exchanger tube 16 Vapour, promotes Chinese herbal medicine solution to fall along tube wall, and the bottom of indirect steam from heat exchanger tube 16 is expelled to the isothermal concentration tower body 13 Indirect steam steam collecting cavity 131.
The middle part of the lower block plate 132 is provided with carrying convex surface 133, and the consubstantiality economic benefits and social benefits heater 1 is arranged at described hold Carry on convex surface 133, so that the bottom of the consubstantiality economic benefits and social benefits heater 1 and the Chinese herbal medicine solution of concentration basin are separated, prevent concentration The bottom of the consubstantiality economic benefits and social benefits heater 1 is sealed during the Chinese herbal medicine solution overfill in pond and indirect steam is not discharged, is easy to two The diffusion of secondary steam, and the separation between solution and indirect steam.
The indirect steam of discharge flows to the indirect steam steam collecting cavity 131 and indirect steam input pipe 62 successively, most laggard Enter centrifugal compressor 6 and separated and compressed heating, then heated steam output pipe 61 is delivered to warming enclosure body 17, participates in changing Thermal cycle.The no longer compressed air of centrifugal compressor 6 when indirect steam is enough, replaces heating steam by indirect steam, reduces The demand of the energy, reduces operating cost to external world.The indirect steam for concentrating collection in tower body 13 in the isothermal is that isothermal steams Vapour, is easy to compression to handle；And the indirect steam of discharge is collected and recycled, externally discharge is reduced, thermal waste is reduced.Under described The top of joint sealing 13 is provided with the convex pipe 132 of lower envelope, and the indirect steam that heat exchanger tube 16 is discharged need to could enter collection by the convex pipe 132 of lower envelope Vapour shell body 18, is easy to the diffusion of indirect steam, and the separation between solution and indirect steam.
Preferably, as shown in Fig. 2, Fig. 9, the preheating unit includes liquid feeding pump 21, raw material regulating valve 22, output threeway control Valve 31 processed, first-class heat exchanger 32, secondary heat exchanger 33, condensation water storage tank 34, water purification pot 7, input three-way control valve 71 and water purification Control valve 72, the inlet of the raw material regulating valve 22 is connected by pipeline with head tank 2, and the raw material regulating valve 22 goes out liquid Mouth is connected by pipeline with the inlet of liquid feeding pump 21, the liquid outlet of the liquid feeding pump 21 and the feed liquor of output three-way control valve 31 Mouth connection, the first liquid outlet of the output three-way control valve 31 is by pipeline and positioned at I water-locator 122 for imitating I tube side 81 The openend connection of feed tube 124；
First inlet of the input three-way control valve 71 is connected by pipeline with water purification pot 7, the input threeway control Second inlet of valve 71 processed is connected by pipeline with the liquid outlet of raw material regulating valve 22, described to input going out for three-way control valve 71 Liquid mouthful is connected by pipeline with the inlet of liquid feeding pump 21；The inlet of the water purification control valve 72 is managed by pipeline and II effect I The concentration basin connection of journey 83, the liquid outlet of the water purification control valve 72 is connected by pipeline with condensation water storage tank 34；
The consubstantiality economic benefits and social benefits heater 1 also include condensate output transistor 111, one end of the condensate output transistor 111 and Main casing 11 is connected, and the other end of the condensate output transistor 111 is connected with the working medium inlet of first-class heat exchanger 32, described The working medium exit port of first-class heat exchanger 32 is connected by pipeline with condensation water storage tank 34, the inlet of the first-class heat exchanger 32 Connect by pipeline with the second liquid outlet of output three-way control valve 31, the inlet of the secondary heat exchanger 33 by pipeline with The liquid outlet connection of first-class heat exchanger 32, the liquid outlet of the secondary heat exchanger 33 passes through pipeline and the output three-way control valve 31 the first liquid outlet connection, the working medium inlet of the secondary heat exchanger 33 is by the external boiler of pipeline, and described two grades are changed The working medium exit port steam-out (SO) delivery pipe of hot device 33.
The condensate output transistor 111 is used for the condensed water for exporting main casing 11, and these condensed waters are indirect steam and changed Heat pipe 16 carries out heat exchange condensation and formed, and these condensed waters are still in higher temperature.Therefore, the high condensed water of these temperature can be made Exchanged heat for the working media of first-class heat exchanger 32, and Chinese herbal medicine stoste, heat Chinese herbal medicine stoste, but heating effect is not strong. The first-class heat exchanger 32 is board frame type heat-exchanger, it is adaptable to which the utilization of low-temperature heat source, the minimum temperature difference of two kinds of heat transferring mediums can Reach 1 DEG C.The external Boiler Steam of the secondary heat exchanger 33 is exchanged heat as working media, and Chinese herbal medicine stoste, in heating Herbal medicine stoste, heating effect is strong.The secondary heat exchanger 33 is tubular heat exchanger, it is adaptable to the utilization of high temperature heat source, heat exchange Temperature range is big.
Liquid feeding pump 21 extract head tank 2 in Chinese herbal medicine stoste, can liquid feeding pump 21 inlet and first-class heat exchanger 32 Liquid outlet thermometer is set, the temperature of Chinese herbal medicine stoste is detected, to control two liquid outlets for exporting three-way control valve 31 The working condition of switch and secondary heat exchanger 33.When the temperature of Chinese herbal medicine stoste is higher than 80 DEG C, then three-way control valve 31 is exported First liquid outlet is opened and the second liquid outlet is closed, and Chinese herbal medicine stoste is fed directly to the upper of the tube side 81 of I effect I without preheating Annular seal space carries out falling film concentration；When the temperature of Chinese herbal medicine stoste is less than 80 DEG C, then the first liquid outlet of three-way control valve 31 is exported Close and the second liquid outlet is opened, first-class heat exchanger 32 is once preheated to Chinese herbal medicine stoste first, then is judged once pre- Whether the temperature of the Chinese herbal medicine stoste after heat reaches 80 DEG C：If the temperature of the Chinese herbal medicine stoste after once preheating reaches 80 DEG C, Secondary heat exchanger 33 does not work, and the upper annular seal space that Chinese herbal medicine stoste is fed directly to the tube side 81 of I effect I carries out falling film concentration；If one The temperature of Chinese herbal medicine stoste after secondary preheating is still below 80 DEG C, and it is secondary pre- to be carried out to Chinese herbal medicine stoste to start secondary heat exchanger 33 Heat, then it is delivered to the upper annular seal space of the tube side 81 of I effect I.The preheating unit sets first-class heat exchanger 32 and secondary heat exchanger 33, root Preheating method is selected according to the temperature of Chinese herbal medicine stoste, the waste heat of condensed water had both been made full use of, the use of thermal source to external world is reduced again, Reduce input cost.The raw material regulating valve 22 is used to control Chinese herbal medicine stoste output quantity and output speed, then controls medium-height grass The evaporation capacity and evaporation rate of medicine stoste, preferably by evaporation rate control in 10.5t/h.
Liquid inlet volume positioned at the water-locator 122 of I I tube side 81 of effect is controlled by liquid feeding pump 21, and feed liquor frequency converter can be set to adjust Save the rotating speed of liquid feeding pump 21, you can control liquid feeding pump 21 goes out liquid speed rate, so as to control the thickness of liquid film of the tube side 81 of I effect I.It is located at The liquid inlet volume of the water-locator 122 of I II tube side 82 of effect is controlled by falling liquid film circulating pump 4, the control of the falling liquid film frequency converter 42 falling liquid film circulation The rotating speed of pump 4, so as to control the thickness of liquid film of the tube side 82 of I effect II.
The water purification pot 7 stores pure water, for cleaning consubstantiality economic benefits and social benefits heater 1；The input three-way control valve 71 is used for Control whether to be cleaned.During concentration, the first inlet of input three-way control valve 71 is closed and the second inlet is opened, Xiang Jin Liquid pump 21 conveys Chinese herbal medicine stoste；During cleaning, the first inlet of input three-way control valve 71 is opened and the second inlet is closed, Pure water is conveyed to liquid feeding pump 21, consubstantiality economic benefits and social benefits heater 1 is cleaned, and water purification control valve 72, waste water are opened after cleaning Condensation water storage tank 34 is delivered to store.
Preferably, as shown in figure 3, the consubstantiality economic benefits and social benefits heater 1 also includes on-condensible gas efferent duct 112 and multiple dammed Plate 19, the on-condensible gas efferent duct 112 is connected with main casing 11；Multiple intercepter plates 19 are arranged at the interior of main casing 11 Portion, and inwall of the side with main casing 11 of multiple intercepter plates 19 be connected, the opposite side of multiple intercepter plates 19 and The S-shaped arrangement in gap formed between main casing 11.Indirect steam partial condensation in main casing 11 is into water and condensed water Efferent duct 111 is discharged, and uncooled Cheng Shui indirect steam is then discharged through on-condensible gas efferent duct 112.The main casing 11 Inside is provided with the intercepter plate 19 of S-shaped arrangement, for guiding indirect steam S-shaped flowing from top to bottom in main casing 11, from And extend flowing time of the indirect steam in main casing 11, then extend heat-exchange time, improve concentration quality.
Preferably, the isothermal economic benefits and social benefits concentrate the method for concentration of unit, including solution concentration process and indirect steam circulation Process：
The solution concentration process comprises the following steps：
Step A, the cryogenic fluid being stored in head tank 2 is heated into after pyrosol by preheating unit, into consubstantiality I I tube side 81 of effect of economic benefits and social benefits heater 1；
Step B, pyrosol enters after the upper annular seal space of I I tube side 81 of effect, and the water-locator 122 of I I tube side 81 of effect is by high temperature Solution is evenly distributed in each heat exchanger tube 16 of the tube side 81 of I effect I, heat exchanger tube 16 pyrosol under gravity, with The membranaceous concentration basin for flowing to the tube side 81 of I effect I, carries out falling film concentration；
Step C, falling liquid film circulating pump 4 extracts the pyrosol in the concentration basin of I I tube side 81 of effect and is transported to I effect Pyrosol is evenly distributed to each of the tube side 82 of I effect II by the upper annular seal space of II tube side 82, the water-locator 122 of I II tube side 82 of effect In root heat exchanger tube 16, heat exchanger tube 16 pyrosol under gravity, with the membranaceous concentration basin for flowing to the tube side 82 of I effect II, Carry out falling film concentration；
When the pyrosol in the concentration basin of I II tube side 82 of effect is not up to falling liquid film requirement concentration, falling liquid film regulating valve 41 dozens Open, falling liquid film circulating pump 4 enters the upper annular seal space that the pyrosol in the concentration basin of I II tube side 82 of effect is transmitted back to the tube side 82 of I effect II Row falling film concentration, untill the pyrosol in the concentration basin of I II tube side 82 of effect reaches falling liquid film requirement concentration；
Step D, the pyrosol that the first forced circulation pump 51 is up to falling liquid film requirement concentration is delivered to the tube side 83 of II effect I Upper annular seal space, then carries out forced circulation concentration, the high-temp liquid after concentration is converged in the heat exchanger tube 16 of II I tube side 83 of effect The concentration basin of II I tube side 83 of effect；
When the pyrosol in the concentration basin of II I tube side 83 of effect is not up to compulsive requirement concentration, the first forced circulation is adjusted Section valve 52 is opened, and the pyrosol in the concentration basin of II I tube side 83 of effect is transmitted back to the tube side 83 of II effect I by the first forced circulation pump 51 Upper annular seal space carry out forced circulation concentration, until II effect I tube side 83 concentration basin in pyrosol reach that liquid requirement is dense Untill degree；
Step E, the pyrosol that Pump for giving-out 53 is up to out liquid requirement concentration is delivered to receipts cream tank 5 and stored；
The indirect steam cyclic process includes：
First, the indirect steam in isothermal concentration tower body 13 enters centrifugal compressor 6 by indirect steam input pipe 62 After compression heating, then the heat exchanger tube 16 entered by heating steam output pipe 61 in main casing 11, with main casing 11 carries out hot friendship Change；
Then, carry out the indirect steam after heat exchange and be condensed into liquid, condensed water delivery pipe 111 is delivered to condensed water storage Tank 34, and on-condensible gas is then discharged through on-condensible gas efferent duct 112.
The solution concentration process first carries out the falling film concentration of easy fouling in the tube side 81 of I effect I and I II tube side 82 of effect, is used for The relatively low Chinese herbal medicine stoste of concentration is concentrated, the relatively low Chinese herbal medicine stoste of concentration is less scaling；The water-locator 122 can be by Chinese herbal medicine Stoste mean allocation to each heat exchanger tube 16, heat exchanger tube 16 Chinese herbal medicine stoste under gravity with membranaceous flow direction under joint sealing 13；Then the strong forced circulation concentration of antiscale ability is carried out in II I tube side 83 of effect, for concentrating that concentration is higher and in easy fouling Part Chinese herbal medicine solution is by hot vapour in herbal medicine solution, Chinese herbal medicine solution free-falling in heat exchanger tube 16 of full packages, dropping process Change, so that Chinese herbal medicine solution sprays at a high speed lower joint sealing 13 in the case where the saturated gas of expansion is promoted.Moreover, the solution concentration process Chinese herbal medicine solution is also set to carry out repeatedly circulation concentration in each tube side until reaching that predetermined value just enters next stage tube side, Improve concentration quality.The indirect steam of three tube side discharges is collected in the indirect steam cyclic process simultaneously, to replace heating to steam Vapour participates in recuperated cycle, reduces the demand of the energy to external world, reduces operating cost.Indirect steam, which is collected, to be recycled, and is reduced external Discharge, reduces thermal waste.
Preferably, in addition to cleaning process：
When pyrosol is all delivered to I II tube side 82 of effect from I effect I tube side 81, i.e., the concentration basin of I I tube side 81 of effect without During pyrosol, the pure water for being stored in water purification pot 7 is delivered to the upper annular seal space of the tube side 81 of I effect I, the upper sealing to I I tube side 81 of effect Chamber, heat exchanger tube 16 and concentration basin are rinsed；
When pyrosol is all delivered to II I tube side 83 of effect from I II tube side of effect 82, i.e., the concentration basin of I II tube side 82 of effect During without pyrosol, falling liquid film circulating pump 4 extracts the pure water in the concentration basin of I I tube side 81 of effect and is transported to the tube side of I effect II 82 upper annular seal space, is rinsed to upper annular seal space, heat exchanger tube 16 and the concentration basin of I II tube side 82 of effect；
When pyrosol is all delivered to receipts cream tank 5 from II I tube side of effect 83, i.e., the concentration basin of II I tube side 83 of effect is without height During warm solution, the first forced circulation pump 51 extracts the pure water in the concentration basin of I II tube side 82 of effect and is transported to the pipe of II effect I The upper annular seal space of journey 83, is rinsed to upper annular seal space, heat exchanger tube 16 and the concentration basin of II I tube side 83 of effect；
After II effect I tube side 83 flushing is finished, water purification control valve 72 is opened, defeated in the pure water of the concentration basin of II I tube side 83 of effect Deliver to and stored in condensation water storage tank 34.
The cleaning process using each tube side step by step cleaning by the way of, can while upper level tube side is cleaned, The tube side of rear class is still proceeding enriching service, is independent of each other, and being only left II I tube side 83 of effect after liquid is gone out needs cleaning, greatly The big rotational cycle for shortening concentration-cleaning, improves production efficiency.Moreover, being cleaned in concentration process, it can both make completion The tube side of concentration keeps moistening, prevents the heat exchanger tube 16 for completing the tube side of concentration from occurring dry wall；It can clean and exchange heat in pure water again Indirect steam is produced during pipe 16, it is ensured that the indirect steam amount of isothermal concentration tower body 13 described in whole concentration process is uniform and stable, So that the working stability of centrifugal compressor 6, prevents that the indirect steam amount of compression is unstable and the centrifugal compressor 6 is caused Damage.
The technical principle of the present invention is described above in association with specific embodiment.These descriptions are intended merely to explain the present invention's Principle, and limiting the scope of the invention can not be construed in any way.Based on explanation herein, the technology of this area Personnel, which would not require any inventive effort, can associate other embodiments of the present invention, and these modes are fallen within Within protection scope of the present invention.

Claims (10)

1. a kind of isothermal economic benefits and social benefits concentrate unit, including economic benefits and social benefits concentration systems and indirect steam recompression system, the economic benefits and social benefits concentration System and indirect steam recompression system connection, the economic benefits and social benefits concentration systems include head tank, preheating from upstream to downstream successively Unit, isothermal concentration tower body, consubstantiality economic benefits and social benefits heater and receipts cream tank, it is characterised in that：
The isothermal concentration tower body is socketed on the outside of the consubstantiality economic benefits and social benefits heater, the isothermal concentration tower body and consubstantiality economic benefits and social benefits Indirect steam steam collecting cavity is formed between heater；
The consubstantiality economic benefits and social benefits heater includes main casing, upper cover, upper perforated plate, lower perforated plate and Duo Gen heat exchanger tubes, the main casing Upper end the upper perforated plate is set, the lower end of the main casing sets the lower perforated plate, and the upper end of the main casing and upper End socket is tightly connected；The upper perforated plate and lower perforated plate are distributed with multiple heat exchanger tube mounting holes, and many heat exchanger tubes pass through heat exchanger tube Mounting hole is vertically installed between upper perforated plate and lower perforated plate in array；
Also include upper block plate and lower block plate, the upper block plate is arranged at the inner chamber of upper cover and draws the inner chamber of upper cover It is divided into three upper annular seal spaces, the lower block plate is arranged at the bottom of isothermal concentration tower body and is divided into three concentration basins, The consubstantiality economic benefits and social benefits heater is arranged at the top of the lower block plate；And the upper block plate and lower block plate are relative up and down Set the tube side of consubstantiality economic benefits and social benefits heater being divided into the tube side of I effect I, I II tube side of effect and II I tube side of effect；
The upper annular seal space of I I tube side of effect and I II tube side of effect is equipped with water-locator, and I I tube side of effect and I II tube side of effect are drop Film concentrates module, and II effect, I tube side is that forced circulation concentrates module.
2. isothermal economic benefits and social benefits according to claim 1 concentrate unit, it is characterised in that：The upper annular seal space of I effect, I tube side leads to Piping is connected with preheating unit, and the concentration basin of I effect, I tube side is connected by the upper annular seal space of pipeline and I II tube side of effect, institute The concentration basin for stating the tube side of I effect II is connected by the upper annular seal space of pipeline and II I tube side of effect, and the concentration basin of II effect, I tube side leads to Piping is connected with cream tank is received.
3. isothermal economic benefits and social benefits according to claim 1 concentrate unit, it is characterised in that：The water-locator includes liquid reserve tank and entered Liquid pipe, the feed tube is connected with liquid reserve tank, and the sealed end of the feed tube extends to the inside of liquid reserve tank, the feed liquor One section positioned at liquid reserve tank of pipe is provided with multiple inlet openings；
Liquid branch pipe is matched somebody with somebody in the bottom of the liquid reserve tank provided with many, is aligned one by one with heat exchanger tube described in liquid branch pipe and Duo Gen described in many And it is described to be inserted with liquid branch pipe in the corresponding heat exchanger tube；The sealed bottom with liquid branch pipe, it is described with liquid branch pipe Side wall is provided with multiple spray holes.
4. isothermal economic benefits and social benefits according to claim 3 concentrate unit, it is characterised in that：The economic benefits and social benefits concentration systems also include drop Film circulating pump, falling liquid film regulating valve, the first forced circulation pump, the first forced circulation regulating valve and Pump for giving-out；
The inlet of the falling liquid film circulating pump is connected by the concentration basin of pipeline and I I tube side of effect, and the falling liquid film circulating pump goes out liquid Mouth is connected by the openend of pipeline with the feed tube of the water-locator positioned at I II tube side of effect, the inlet of the falling liquid film regulating valve Connected by the concentration basin of pipeline and I II tube side of effect, the liquid outlet of the falling liquid film regulating valve passes through pipeline and falling liquid film circulating pump Inlet is connected；
The inlet of first forced circulation pump is connected by the concentration basin of pipeline and I II tube side of effect, and described first forces to follow The liquid outlet of ring pump is connected by the upper annular seal space of pipeline and II I tube side of effect, the inlet of the first forced circulation regulating valve Connected by the concentration basin of pipeline and II I tube side of effect, the liquid outlet of the first forced circulation regulating valve passes through pipeline and first The inlet connection of forced circulation pump；
The inlet of the Pump for giving-out is connected by the concentration basin of pipeline and II I tube side of effect, and the liquid outlet of the Pump for giving-out passes through Pipeline is connected with cream tank is received.
5. isothermal economic benefits and social benefits according to claim 4 concentrate unit, it is characterised in that：The economic benefits and social benefits concentration systems also include drop Film frequency converter and densitometer, falling liquid film frequency converter and falling liquid film the circulating pump electrical connection, the falling liquid film Frequency Converter Control falling liquid film circulation The rotating speed of pump；
The test side of the densitometer is connected with the concentration basin of II I tube side of effect.
6. isothermal economic benefits and social benefits according to claim 4 concentrate unit, it is characterised in that：The indirect steam recompression system is also Including centrifugal compressor, heating steam output pipe and indirect steam input pipe, one end of the indirect steam input pipe and centrifugation The input port connection of compressor, the other end of the indirect steam input pipe is connected with isothermal concentration tower body, the heating steam One end of efferent duct is connected with the delivery outlet of centrifugal compressor；
Also include warming enclosure body, the warming enclosure body is close so as to form heating around the outside on the top for being arranged at main casing Chamber is sealed, side corresponding with the warming enclosure body wall of the main casing inputs through hole, the heating steam provided with multiple indirect steams The other end of efferent duct is connected with warming enclosure body；
The middle part of the lower block plate is arranged on the carrying convex surface provided with carrying convex surface, the consubstantiality economic benefits and social benefits heater.
7. isothermal economic benefits and social benefits according to claim 6 concentrate unit, it is characterised in that：The preheating unit include liquid feeding pump, Raw material regulating valve, output three-way control valve, first-class heat exchanger, secondary heat exchanger, condensation water storage tank, water purification pot, input threeway control Valve and water purification control valve processed, the inlet of the raw material regulating valve is connected by pipeline with head tank, the raw material regulating valve Liquid outlet is connected by pipeline with the inlet of liquid feeding pump, the liquid outlet of the liquid feeding pump and the inlet of output three-way control valve Connection, the feed tube of the water-locator of the first liquid outlet of the output three-way control valve by pipeline and positioned at I I tube side of effect is opened The connection of mouth end；
First inlet of the input three-way control valve connect by pipeline with water purification pot, described to input the of three-way control valve Two inlets are connected by pipeline with the liquid outlet of raw material regulating valve, the liquid outlet of the input three-way control valve by pipeline and The inlet connection of liquid feeding pump；The inlet of the water purification control valve is connected by the concentration basin of pipeline and II I tube side of effect, described The liquid outlet of water purification control valve is connected by pipeline with condensation water storage tank；
The consubstantiality economic benefits and social benefits heater also includes condensate output transistor, and one end of the condensate output transistor is connected with main casing, The other end of the condensate output transistor is connected with the working medium inlet of first-class heat exchanger, and the work of the first-class heat exchanger is situated between Matter outlet is connected by pipeline with condensation water storage tank, and the inlet of the first-class heat exchanger passes through pipeline and output three-way control valve The second liquid outlet connection, the inlet of the secondary heat exchanger is connected by pipeline with the liquid outlet of first-class heat exchanger, described The liquid outlet of secondary heat exchanger is connected by pipeline with the first liquid outlet of the output three-way control valve, the secondary heat exchanger Working medium inlet pass through the external boiler of pipeline, the working medium exit port steam-out (SO) delivery pipe of the secondary heat exchanger.
8. isothermal economic benefits and social benefits according to claim 7 concentrate unit, it is characterised in that：The consubstantiality economic benefits and social benefits heater also includes On-condensible gas efferent duct and multiple intercepter plates, the on-condensible gas efferent duct are connected with main casing；
Multiple intercepter plates are arranged at the inside of main casing, and inwall of the side with main casing of multiple intercepter plates connects Connect, the S-shaped arrangement in gap formed between the opposite side and main casing of multiple intercepter plates.
9. the isothermal economic benefits and social benefits according to claim 1 to 8 any one concentrate the method for concentration of unit, it is characterised in that bag Include solution concentration process and indirect steam cyclic process：
The solution concentration process comprises the following steps：
Step A, the cryogenic fluid being stored in head tank is heated into after pyrosol by preheating unit, is added into consubstantiality economic benefits and social benefits I I tube side of effect of hot device；
Step B, pyrosol enters after the upper annular seal space of I I tube side of effect, and the water-locator of I I tube side of effect is by pyrosol mean allocation Into each heat exchanger tube of I I tube side of effect, heat exchanger tube pyrosol under gravity, with membranaceous I effect I tube side of flowing to Concentration basin, carries out falling film concentration；
Step C, falling liquid film circulating pump extracts the pyrosol in the concentration basin of I I tube side of effect and is transported to the tube side of I effect II Pyrosol is evenly distributed in each heat exchanger tube of the tube side of I effect II by upper annular seal space, the water-locator of I II tube side of effect, in heat exchange The pyrosol of pipe under gravity, with the membranaceous concentration basin for flowing to the tube side of I effect II, carries out falling film concentration；
When the pyrosol in the concentration basin of I II tube side of effect is not up to falling liquid film requirement concentration, falling liquid film regulating valve is opened, and falling liquid film is followed The upper annular seal space that pyrosol in the concentration basin of I II tube side of effect is transmitted back to the tube side of I effect II is carried out falling film concentration by ring pump, until Untill pyrosol in the concentration basin of I II tube side of effect reaches falling liquid film requirement concentration；
Step D, the pyrosol that the first forced circulation pump is up to falling liquid film requirement concentration is delivered to the upper sealing of the tube side of II effect I Chamber, then carries out forced circulation concentration, the high-temp liquid after concentration converges in the tube side of II effect I in the heat exchanger tube of II I tube side of effect Concentration basin；
When the pyrosol in the concentration basin of II I tube side of effect is not up to compulsive requirement concentration, the first forced circulation regulating valve is beaten Open, the first forced circulation pump carries out the upper annular seal space that the pyrosol in the concentration basin of II I tube side of effect is transmitted back to the tube side of II effect I Forced circulation is concentrated, untill the pyrosol in the concentration basin of II I tube side of effect reaches liquid requirement concentration；
Step E, Pump for giving-out be up to out liquid requirement concentration pyrosol be delivered to receipts cream tank stored；
The indirect steam cyclic process includes：
First, the indirect steam in isothermal concentration tower body enters centrifugal compressor compression by indirect steam input pipe and heated Afterwards, then by heating steam output pipe enter main casing, heat exchange is carried out with the heat exchanger tube in main casing；
Then, carry out the indirect steam after heat exchange and be condensed into liquid, condensed water delivery pipe is delivered to condensation water storage tank, without Solidifying gas is then discharged through on-condensible gas efferent duct.
10. method for concentration according to claim 9, it is characterised in that also including cleaning process：
When pyrosol is all delivered to I II tube side of effect from I I tube side of effect, i.e., when the concentration basin of I I tube side of effect is without pyrosol, The pure water for being stored in water purification pot is delivered to the upper annular seal space of the tube side of I effect I, upper annular seal space, heat exchanger tube and concentration to I I tube side of effect Pond is rinsed；
When pyrosol is all delivered to II I tube side of effect from I II tube side of effect, i.e., the concentration basin of I II tube side of effect is without pyrosol When, falling liquid film circulating pump extracts the pure water in the concentration basin of I I tube side of effect and is transported to the upper annular seal space of the tube side of I effect II, right Upper annular seal space, heat exchanger tube and the concentration basin of I II tube side of effect are rinsed；
When pyrosol is all delivered to receipts cream tank from II I tube side of effect, i.e., when the concentration basin of II I tube side of effect is without pyrosol, First forced circulation pump extracts the pure water in the concentration basin of I II tube side of effect and is transported to the upper annular seal space of the tube side of II effect I, Upper annular seal space, heat exchanger tube and the concentration basin of II I tube side of effect are rinsed；
After II effect I tube side flushing is finished, water purification control valve is opened, and condensed water is delivered in the pure water of the concentration basin of II I tube side of effect Stored in storage tank.
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CN205216256U (en) * 2015-11-26 2016-05-11 上海中腾环保科技有限公司 Falling liquid film and MVR forced circulation evaporation crystal system
CN106474755A (en) * 2016-09-27 2017-03-08 深圳市瑞升华科技股份有限公司 Integral type falling film evaporation separator
CN207055992U (en) * 2017-07-28 2018-03-02 佛山德众制药机械有限公司 A kind of isothermal economic benefits and social benefits concentrate unit

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CN101954195A (en) * 2010-04-29 2011-01-26 广州市心德实业有限公司 Falling film evaporator
US20140179957A1 (en) * 2012-12-20 2014-06-26 Celanese International Corporation Ethanol Refining Process Using Intermediate Reboiler
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