CN105435480B - Vacuum recommends alcohol concentration systems - Google Patents
Vacuum recommends alcohol concentration systems Download PDFInfo
- Publication number
- CN105435480B CN105435480B CN201511003385.8A CN201511003385A CN105435480B CN 105435480 B CN105435480 B CN 105435480B CN 201511003385 A CN201511003385 A CN 201511003385A CN 105435480 B CN105435480 B CN 105435480B
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- China
- Prior art keywords
- concentration
- recommends
- connects
- waste heat
- sheet frame
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D1/00—Evaporating
- B01D1/0011—Heating features
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D1/00—Evaporating
- B01D1/30—Accessories for evaporators ; Constructional details thereof
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C29/00—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring
- C07C29/74—Separation; Purification; Use of additives, e.g. for stabilisation
- C07C29/76—Separation; Purification; Use of additives, e.g. for stabilisation by physical treatment
- C07C29/78—Separation; Purification; Use of additives, e.g. for stabilisation by physical treatment by condensation or crystallisation
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
Abstract
The present invention proposes a kind of vacuum and recommends alcohol concentration systems, the vacuum, which recommends alcohol concentration systems, includes refrigeration compressor, two-tube board heating apparatus, concentration and evaporation tank, sheet frame condenser, big water ring vacuum pump, waste heat preheater and small water ring vacuum pump, and the refrigeration compressor connects the two-tube board heating apparatus；The two-tube board heating apparatus connect the concentration and evaporation tank；The concentration and evaporation tank separates two branch roads and is respectively communicated with sheet frame condenser and big water ring vacuum pump；The sheet frame condenser connects the waste heat preheater；The waste heat preheater connects the small water ring vacuum pump.The present invention is heated using refrigeration compressor hot junction through heat exchanger to solution to be concentrated, and a kind of novel evacuated push-pull type concentrator of concentration is reached to indirect steam condensation using cold end.Concentration of the present invention to ethanol solution has security, and is a kind of preferably selection to that can not use the enterprise of gas fired-boiler.It is slightly more inferior than MVR in terms of energy-conservation, concentrate appropriate litigation fees with common economic benefits and social benefits.
Description
Technical field
Field is concentrated the present invention relates to alcohol, a kind of vacuum is particularly related to and recommends alcohol concentration systems.
Background technology
The development of liquid concentration process-intensive is maked rapid progress, and has single-action, economic benefits and social benefits, heat pump economic benefits and social benefits, MVR etc..
Wherein at present most energy-conservation be use MVR technologies, be using vapo(u)rization system itself produce indirect steam through compressor
Compressed action, lifts the heat content of indirect steam, circulates a power-saving technology to vapo(u)rization system heat supply.
Usual MVR modes have using centrifugal blower, centrifugal compressor and lobed rotor compressor.Any mode is all adopted
Mechanically indirect steam is compressed to improve the temperature of steam.The friction of machinery, collision occur unavoidably for this process
Situations such as, this brings certain potential safety hazard for the concentration of ethanol solution.Therefore, the unsuitable ethanol concentration work of MVR technologies
Skill.
Another ethanol concentration technology is the method heated using Boiler Steam.What the country was conventional at present is single-action concentration,
Although economic benefits and social benefits save 50% steam than single-action, because the ethanol yield that economic benefits and social benefits ethanol is concentrated is relatively low, so the country is current very
Ethanol economic benefits and social benefits concentrator is used less.The invention that latest domestic is released is a kind of use " a kind of closed circuit economic benefits and social benefits alcohol concentrates unit "
Economic benefits and social benefits combine the method for concentration of " spraying mass transfer formula freezer condenser ".Its advantage is safe efficient, and whole unit is almost without row
Put, therefore ethanol recovery is very high, but this technique is also the method for concentration using Boiler Steam.For without boiler or due to ring
Guarantor's factor closes down coal-burning boiler, it is necessary to which selection for the enterprise of gas fired-boiler using being difficult to receive, because to increase significantly
Cost, coal-fired steam cost is less than 200 yuan/ton, and combustion gas wants 400 yuan or so.Fire coal is phased out from the point of view of environmentally friendly overall situation
Boiler is a trend.
The content of the invention
The present invention proposes that a kind of vacuum recommends alcohol concentration systems, solves the problems of the prior art.
The technical proposal of the invention is realized in this way：
A kind of vacuum recommends alcohol concentration systems, and the vacuum is recommended alcohol concentration systems and added including refrigeration compressor, double tubesheet
Hot device, concentration and evaporation tank, sheet frame condenser, big water ring vacuum pump, waste heat preheater and small water ring vacuum pump, the refrigerant compression
Machine connects the two-tube board heating apparatus；One end of the two-tube board heating apparatus connects the concentration and evaporation tank；The concentration and evaporation
Tank separates two branch roads and is respectively communicated with sheet frame condenser and big water ring vacuum pump；The sheet frame condenser connects the waste heat preheating
Device；The waste heat preheater connects the small water ring vacuum pump.
The present invention is a kind of application of heat pump techniques.The heat produced is compressed using compressor to refrigerant to heat through heat exchanger
Solution to be concentrated, concentrate evaporates in evaporator, and the indirect steam of generation is through the condenser using compressor cold end as low-temperature receiver, to drop
Temperature cooling discharge condensed water reaches concentration purpose.
This is the concentrator under a kind of utilization refrigeration compressor heat, the cold end effect of recommending, and it is applied to without boiler enterprise
Ethanol concentration technology.
Refrigeration machine operation principle：Refrigerant is compressed the high temperature produced by condenser (radiator) radiating and cooling by compressor,
The expanded valve of refrigerant after cooling is released further decrease temperature and pressure, to evaporator in absorb heat, obtain cold end heat energy Posterior circle to pressing
The compression of contracting machine obtains higher heat energy.
The heat balance principle of the present invention is different just for object difference address as general refrigerating system.It plus
Hot device is referred to as condenser for general refrigerating system, and its condenser is referred to as evaporator for general refrigerating system.Refrigeration
System is as a rule single use refrigeration end or heating end, and the present invention is refrigeration end and heating end while using.Using heat
Hold heated solution, cold end condensed steam is concentrated pushing away, under the effect of drawing.
As the preferred scheme of the present invention, the sheet frame condenser includes four ports, respectively first port, the second end
Mouth, the 3rd port and the 4th port；The waste heat preheater includes first end, the second end, the 3rd end and the 4th end；The concentration
Evaporator is connected with the second port of the sheet frame condenser；The other end that the two-tube board heating apparatus extend and the plate
The first port of frame condenser is connected.
As the preferred scheme of the present invention, the pipe fitting of the two-tube board heating apparatus and the concentration and evaporation tank, one end are connected
From two-tube board heating apparatus, the other end inserts the inside of the concentration and evaporation tank, and the end of the pipe fitting other end is provided with spray
Liquid mouthful.
It is single provided with one first in the middle of the concentration and evaporation tank and the big water ring vacuum pump as the preferred scheme of the present invention
To valve.
As the preferred scheme of the present invention, the double tubesheet heater side connects an expansion valve provided with a branch road, described
The other end of expansion valve is connected with the 3rd port of the sheet frame condenser.
As the preferred scheme of the present invention, the two-tube board heating apparatus connect a Pump for giving-out, in addition, the Pump for giving-out and one
Densitometer is connected, and the other end of the densitometer is connected to the lower end of the concentration and evaporation tank；Meanwhile, the Pump for giving-out connection
One second check valve, the other end connection one of second check valve concentrates liquid storage tank.
As the preferred scheme of the present invention, the waste heat preheater first end connects the 4th end of the sheet frame condenser
Mouthful；Second end of the waste heat preheater connects a pneumatic operated valve；The end of waste heat preheater the 3rd connects a thin liquid storage tank；It is described
The end of waste heat preheater the 4th connects a gas-liquid separator.
As the preferred scheme of the present invention, the other end of the pneumatic operated valve connects feed liquor cooling shower nozzle, the feed liquor drop
Warm shower nozzle is inside the concentration and evaporation tank.
As the preferred scheme of the present invention, the gas-liquid separator is connected with a condensation water storage tank, meanwhile, the gas-liquid
Separator is connected with a small water ring vacuum pump.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
The accompanying drawing to be used needed for having technology description is briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, without having to pay creative labor, may be used also
To obtain other accompanying drawings according to these accompanying drawings.
Fig. 1 is overall system structure schematic diagram of the present invention.
In figure, refrigeration compressor 1, two-tube board heating apparatus 2, concentration and evaporation tank 3, sheet frame condenser 4, big water ring vacuum pump 5,
Waste heat preheater 6, small water ring vacuum pump 7, expansion valve 21, mouth spray 31, pressure transmitter 32, pneumatic operated valve 33, feed liquor cooling spray
First 34, densitometer 35, Pump for giving-out 36, the second check valve 37 concentrates liquid storage tank 38, the first check valve 39, first port 41, second
Port 42, the 3rd port 43, the 4th port 44, thin liquid storage tank 61, gas-liquid separator 62, condensation water storage tank 63, first end 64, the
Two ends 65, the 3rd end 66, the 4th end 67.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.
As shown in figure 1, a kind of vacuum recommends alcohol concentration systems, including refrigeration compressor 1, two-tube board heating apparatus 2, concentration steaming
Tank 3, sheet frame condenser 4, big water ring vacuum pump 5, waste heat preheater 6 and small water ring vacuum pump 7 are sent out, refrigeration compressor 1 connects double
Tube sheet heater 2；One end connection concentration and evaporation tank 3 of two-tube board heating apparatus 2；Concentration and evaporation tank 3 separates two branch roads and connected respectively
Logical sheet frame condenser 4 and big water ring vacuum pump 5；The connection waste heat of sheet frame condenser 4 preheater 6；Waste heat preheater 6 connects small water ring
Vavuum pump 7.
Sheet frame condenser 4 includes four ports, respectively first port 41, second port 42, the 3rd port 43 and the 4th
Port 44；Waste heat preheater 6 includes first end 64, the second end 65, the 3rd end 66 and the 4th end 67；Concentration and evaporation tank 3 and sheet frame
The second port 42 of condenser 4 is connected；The first port of the other end that two-tube board heating apparatus 2 extend and sheet frame condenser 4
41 are connected.
The pipe fitting of two-tube board heating apparatus 2 and concentration and evaporation tank 3 is connected, one end is inserted from two-tube board heating apparatus, the other end
Enter the inside of the concentration and evaporation tank 3, the end of the pipe fitting other end is provided with mouth spray.
Concentration and evaporation tank 3 in the middle of the big water ring vacuum pump with being provided with one first check valve 39.The two-tube side of board heating apparatus 2
An expansion valve 21 is connected provided with a branch road, the other end of expansion valve is connected with the 3rd port 43 of sheet frame condenser 4.
Two-tube board heating apparatus 2 connect a Pump for giving-out 36, in addition, Pump for giving-out 36 is connected with a densitometer 35, densitometer 35
The other end be connected to the lower end of concentration and evaporation tank 3；Meanwhile, Pump for giving-out 36 connects one second check valve 37, the second check valve
Other end connection one concentrates liquid storage tank 38.4th port 44 of the first end of waste heat preheater 6 connection sheet frame condenser 4；Waste heat is pre-
Second end 65 of hot device 6 connects a pneumatic operated valve 33；The end 66 of waste heat preheater the 3rd connects a thin liquid storage tank 61；Waste heat preheater 6
4th end 67 connects a gas-liquid separator 62.The other end of pneumatic operated valve 33 connects feed liquor cooling shower nozzle 34, feed liquor cooling shower nozzle
34 inside concentration and evaporation tank 3.Gas-liquid separator 62 is connected with a condensation water storage tank 63, meanwhile, gas-liquid separator and one
Small water ring vacuum pump 7 is connected.
Operation principle of the present invention is as follows：
(1) heat
Refrigerant enters compressor 1 in middle temperature low pressure refrigerant entrance, and its temperature is raised after being compressed, and is entered through HTHP refrigerant
Mouth enters two-tube board heating apparatus 2.Cryogenic fluid enters in two-tube board heating apparatus 2 in cryogenic fluid entrance, by HTHP refrigerant
Come out after heating from taphole, in the evaporation and concentration tank 3 that vacuum is sprayed into through mouth spray.Refrigerant is therefrom warm after cooling through heat exchange
High pressure refrigerant outlet is discharged to up to expansion valve 21.
(2) evaporate
The solution of high temperature from mouth spray 31 spray into high vacuum concentration and evaporation tank 3 in immediately bumping evaporate, indirect steam from
Steam (vapor) outlet is discharged, and unevaporated solution falls into the concentrated tank circulation pipe in evaporator bottom and flowed back in two-tube board heating apparatus 2, through low temperature
Solution inlet is by circulating-heating.The liquid level of concentration tank 3 controls inlet pneumatic operated valve 33 under the signal function of pressure transmitter 32
Unlatching, when low liquid level pneumatic operated valve 33 open fluid infusion.
(3) condense
The refrigerant of HTHP heated solution and cool itself after entering two-tube board heating apparatus 2, become middle temperature high pressure
Refrigerant, flows through expansion valve 21 by the outlet of middle temperature high pressure refrigerant, decrease temperature and pressure is expanded rapidly, the refrigerant after expansion is cold through low-temp low-pressure
Matchmaker's entrance enters in sheet frame condenser 4, and therefrom warm low pressure refrigerant outlet circulation flows into compressor for refrigerant heating after heat exchange.Concentration is steamed
The indirect steam for sending out tank 3 enters in sheet frame condenser 4 under the draft effect of small water ring vacuum pump 7 through steam inlet, secondary to steam
Vapour, which is caught a cold, condenses into condensed water from condensation-water drain discharge, and the condensed water of high temperature, which is sent in waste heat preheater 6, heats new decoction.
(4) vacuum
Vacuum of the present invention is recommended concentration unit whole system and run under vacuum conditions, on startup by the big of relatively high power
Water ring vacuum pump 5 is undertaken, and concentration and evaporation tank 3 is directly connect through the first check valve 39, and system on-condensible gas is discharged by exhaust outlet.When being
System closes big water ring vacuum pump 5 when reaching setting vacuum, it is only necessary to which low power small water ring vacuum pump 7 continues to operation, no
Solidifying gas through outlet is discharged into small water ring pump.
The indirect steam of concentration and evaporation tank 3 becomes condensate liquid to the cold into alcohol gas after sheet frame condenser 4 after operation,
Volume there occurs fierce contraction, and 3.0 cubic metres of saturation alcohol vapour becomes 0.0011 cube in -0.08Mpa environment
The ethanol liquid of rice, Volume Changes nearly 3000 times, therefore can maintain the high vacuum of system in the case of continuous condensation.This
When small water ring vacuum pump 7 only play a part of arrange on-condensible gas because in system if there is 1% on-condensible gas, be
The coefficient of heat transfer of system will reduce by 60%.
(5) preheat
After indirect steam is condensed into liquid through sheet frame condenser, condensate liquid still has higher temperature, and the condensate liquid of high temperature is by plate
The condensation-water drain of frame condenser 4 enters in waste heat heat retrieving apparatus 6, suction of the solution in thin liquid storage tank 61 in the high vacuum of concentration tank 3
Enter under power through cold soln entrance in waste heat preheater 6, concentration and evaporation tank is flowed to by hot solution outlet after being heated.Condensed water is passed through
After gas-liquid separator 62 is separated, flowed directly into 10 meters of drops in condensation water storage tank 63, if inadequate 10 meters of drops need to add pump to arrange
Go out.Condensate liquid realizes UTILIZATION OF VESIDUAL HEAT IN by preheater, on the one hand improves the capacity usage ratio of system, on the other hand makes condensation
Liquid is subcooled, and reduces the volatilization of ethanol.
(6) liquid is gone out
Densitometer 35 is mounted with the circulation pipe of concentration and evaporation tank 3, densitometer sends signal when reaching setting concentration
Pump for giving-out 36 starts, and concentrate is thrown into concentration liquid storage tank 38, automatic when concentration is less than setting value to close Pump for giving-out 36,
The automatic blocking of second check valve 37 under system suction function.
Presently preferred embodiments of the present invention is the foregoing is only, is not intended to limit the invention, all essences in the present invention
God is with principle, and any modifications, equivalent substitutions and improvements made etc. should be included within the scope of the present invention.
Claims (9)
1. a kind of vacuum recommends alcohol concentration systems, it is characterised in that the vacuum recommend alcohol concentration systems including refrigeration compressor,
Two-tube board heating apparatus, concentration and evaporation tank, sheet frame condenser, big water ring vacuum pump, waste heat preheater and small water ring vacuum pump, it is described
Refrigeration compressor connects the two-tube board heating apparatus；One end of the two-tube board heating apparatus connects the concentration and evaporation tank；It is described
Concentration and evaporation tank separates two branch roads and is respectively communicated with sheet frame condenser and big water ring vacuum pump；The sheet frame condenser connection is described
Waste heat preheater；The waste heat preheater connects the small water ring vacuum pump.
2. a kind of vacuum according to claim 1 recommends alcohol concentration systems, it is characterised in that the sheet frame condenser includes
Four ports, respectively first port, second port, the 3rd port and the 4th port；The waste heat preheater include first end,
Second end, the 3rd end and the 4th end；The concentration and evaporation tank is connected with the second port of the sheet frame condenser；It is described two-tube
The other end that board heating apparatus extend is connected with the first port of the sheet frame condenser.
3. a kind of vacuum according to claim 1 recommends alcohol concentration systems, it is characterised in that the connection double tubesheet heating
The interior of the concentration and evaporation tank is inserted in the pipe fitting of device and the concentration and evaporation tank, one end from two-tube board heating apparatus, the other end
Portion, the end of the pipe fitting other end is provided with mouth spray.
4. a kind of vacuum according to claim 1 recommends alcohol concentration systems, it is characterised in that the concentration and evaporation tank and institute
State and one first check valve is provided with the middle of big water ring vacuum pump.
5. a kind of vacuum according to claim 2 recommends alcohol concentration systems, it is characterised in that the two-tube board heating apparatus side
Face connects an expansion valve provided with a branch road, and the other end of the expansion valve is connected with the 3rd port of the sheet frame condenser.
6. a kind of vacuum according to claim 1 recommends alcohol concentration systems, it is characterised in that the two-tube board heating apparatus connect
A logical Pump for giving-out, in addition, the Pump for giving-out is connected with a densitometer, the other end of the densitometer is connected to the concentration and steamed
Send out the lower end of tank；Meanwhile, the Pump for giving-out connects one second check valve, and the other end of second check valve connects a concentrate
Storage tank.
7. a kind of vacuum according to claim 2 recommends alcohol concentration systems, it is characterised in that the waste heat preheater first
4th port of the end connection sheet frame condenser；Second end of the waste heat preheater connects a pneumatic operated valve；The waste heat is pre-
The hot end of device the 3rd connects a thin liquid storage tank；The end of waste heat preheater the 4th connects a gas-liquid separator.
8. a kind of vacuum according to claim 7 recommends alcohol concentration systems, it is characterised in that the other end of the pneumatic operated valve
Feed liquor cooling shower nozzle is connected, the feed liquor cooling shower nozzle is inside the concentration and evaporation tank.
9. a kind of vacuum according to claim 7 recommends alcohol concentration systems, it is characterised in that the gas-liquid separator and one
Condensation water storage tank is connected, meanwhile, the gas-liquid separator is connected with a small water ring vacuum pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511003385.8A CN105435480B (en) | 2015-12-25 | 2015-12-25 | Vacuum recommends alcohol concentration systems |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511003385.8A CN105435480B (en) | 2015-12-25 | 2015-12-25 | Vacuum recommends alcohol concentration systems |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105435480A CN105435480A (en) | 2016-03-30 |
| CN105435480B true CN105435480B (en) | 2017-07-11 |
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ID=55546380
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| Application Number | Title | Priority Date | Filing Date |
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| CN201511003385.8A Active CN105435480B (en) | 2015-12-25 | 2015-12-25 | Vacuum recommends alcohol concentration systems |
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| CN (1) | CN105435480B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106268268A (en) * | 2016-08-26 | 2017-01-04 | 江苏中圣高科技产业有限公司 | A kind of ammonifying more also produces desulfurizer and the method for liquid sulfur dioxide |
| CN110624265A (en) * | 2019-10-28 | 2019-12-31 | 刘小江 | Multistage heating and thermal cycle negative pressure evaporation type solution concentration device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103566613A (en) * | 2012-08-06 | 2014-02-12 | 南通醋酸纤维有限公司 | Rectification device and process for low-concentration organic solvent aqueous liquor recycling heat pump |
| EP2733437A1 (en) * | 2012-11-20 | 2014-05-21 | Panasonic Corporation | Heat pump water heater |
| CN203861933U (en) * | 2014-06-17 | 2014-10-08 | 黄华 | Heat-pump vacuum-concentration drying device |
| CN105056554A (en) * | 2015-07-22 | 2015-11-18 | 上海远跃制药机械有限公司 | Closed-loop heat-pump evaporation unit |
| CN205252562U (en) * | 2015-12-25 | 2016-05-25 | 佛山德众制药机械有限公司 | Pure concentrated system is recommended in vacuum |
-
2015
- 2015-12-25 CN CN201511003385.8A patent/CN105435480B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103566613A (en) * | 2012-08-06 | 2014-02-12 | 南通醋酸纤维有限公司 | Rectification device and process for low-concentration organic solvent aqueous liquor recycling heat pump |
| EP2733437A1 (en) * | 2012-11-20 | 2014-05-21 | Panasonic Corporation | Heat pump water heater |
| CN203861933U (en) * | 2014-06-17 | 2014-10-08 | 黄华 | Heat-pump vacuum-concentration drying device |
| CN105056554A (en) * | 2015-07-22 | 2015-11-18 | 上海远跃制药机械有限公司 | Closed-loop heat-pump evaporation unit |
| CN205252562U (en) * | 2015-12-25 | 2016-05-25 | 佛山德众制药机械有限公司 | Pure concentrated system is recommended in vacuum |
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| Publication number | Publication date |
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| CN105435480A (en) | 2016-03-30 |
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