CN104534741B - A kind of high temperature heat pump of distillation equipment and refrigeration machine heat coupling energy-saving system - Google Patents
A kind of high temperature heat pump of distillation equipment and refrigeration machine heat coupling energy-saving system Download PDFInfo
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- CN104534741B CN104534741B CN201410845558.XA CN201410845558A CN104534741B CN 104534741 B CN104534741 B CN 104534741B CN 201410845558 A CN201410845558 A CN 201410845558A CN 104534741 B CN104534741 B CN 104534741B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B29/00—Combined heating and refrigeration systems, e.g. operating alternately or simultaneously
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- 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
- Y02P80/00—Climate change mitigation technologies for sector-wide applications
- Y02P80/10—Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier
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- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
A kind of high temperature heat pump of distillation equipment and refrigeration machine heat efficient coupling energy conserving system by heat pump of high-temp water source, water cooling refrigeration machine, couple heat exchanger, air energy heat exchanger, waste heat recoverer, circulating pump and form.The hot water for making outflow refrigerator condenser independently carries out efficient heat coupling by same heat exchanger with the water at low temperature for flowing out high temperature heat pump evaporator and exchanged.In heat coupling process, high temperature heat pump carries out high efficiency energy with refrigeration machine and exchanges complementation, then comes back to respectively in the condenser of refrigeration machine and the evaporator of high temperature heat pump, has each obtained optimal grade thermal source, Energy Efficiency Ratio is significantly increased, and has reached preferable energy-saving effect.It the method can be widely used in low temperature chemical industry, wine brewing, edible fat production, the biological middle low temperature distillation solvent recovering system for extracting production, realize electric energy low consumption and enterprise's production zero-emission purpose.
Description
Technical field
The present invention relates to the power-economizing method of Distallation systm, for heating the height vaporized when being specifically distilled to recover organic solvent
Warm a kind of heat efficient coupling energy conserving system of the refrigeration machine of pump and condensation liquefaction.
Background technology
During organic solvent is distilled to recover, it is intended to, using heating vaporization, then carry out condensation liquefaction to steam again,
Reach the purpose of organic solvent recovery.In vaporescence, organic solvent needs to absorb a large amount of heats of vaporization, and most of manufacturing enterprises lead to
Heat is obtained frequently with coal-burning boiler, with the continuous reinforcement that energy-saving and emission-reduction are realized, is all finding new fungible energy source at present,
For example heated by natural gas is used, direct electro heating method, but the use of natural gas needs certain condition, direct electro heating production
Expense increases substantially.Start to provide heat energy using high temperature heat pump both at home and abroad at present, operating cost is close to natural gas is used, still
The use of high temperature heat pump must consume the energy of low-grade heat source, generally use water resource heat pump, by groundwater recharge technology or
Rivers and lakes water source, is limited by conditional resources, and most enterprises are difficult to carry out.
The organic solvent of vaporization needs condensation liquefaction during distillation recovery, it is necessary to refrigeration machine is cooled, vaporization with
Condensation liquefaction is two opposite physical processes, does not consider energy efficiency of equipment, and energy consumption is equal, so still-process needs twice
Energy pay, refrigeration machine is the most frequently used equipment.With the continuous improvement of energy-conserving and environment-protective requirement, people are using various
Energy-saving technical scheme, because condition and resource constraint include investment reason, it still can not meet the needs of production development, at present very
Multiple enterprises still use air cooling chiller, or cooling tower water cooling refrigeration system, and a large amount of heat energy of refrigerator condenser release are white
Distribute in vain, for the energy recovery of refrigeration machine release, people have begun to recycle, but recovery utilization rate is not high.Existing rank
Section, people still constantly seek practicable economizing on energy and electricity method.Occur recent years large quantities of creative special
Sharp technology, for example, patent publication No. CN203907733U, Mult-source energy-saving thermal-arrest and heating system.CN104075484A, it is comprehensive
Utilize solar energy and the heat-supply metering charge and operation method of air energy.Publication number CN104006575A, a kind of wind-water double-source heat
Pump water heater and its control method.CN20384854U, a kind of high temperature heat pump unit that high-temperature water can be produced using air.These
Although the creative Application way for proposing the multiple low grade energy of method, these methods are not exclusively applicable the steaming of cooling and warming
System is evaporated, the power saving of distillation still has the potentiality excavated.There is presently no refrigeration machine in the special process for distillation
Patent application and report of the heat exchanger to heat efficient coupling energy conserving system are utilized between high temperature heat pump.
The content of the invention
The technical problems to be solved by the invention are a kind of height for the distillation equipment for being directed to the above-mentioned state of the art and proposing
Warm the energy conserving system of pump and refrigeration machine.Distillation be heating vaporization with condensation liquefaction recovery organic solvent process, refrigeration machine with
Heat pump is all the equipment for being capable of forced branch heat, and heat pump heating needs to absorb heat from the external world, and refrigeration machine cooling needs to discharge
Used heat, refrigeration is carried out simultaneously with heating in still-process, according to the special process of distillation, design innovation of the present invention one kind
The efficient coupling system of heat between the high temperature heat pump and refrigeration machine of distillation equipment.
A kind of high temperature heat pump of distillation equipment and refrigeration machine heat efficient coupling energy conserving system are by heat pump of high-temp water source, water
Cold refrigeration machine, coupling heat exchanger, air energy heat exchanger, waste heat recoverer, circulating pump composition.Make outflow refrigerator condenser
Hot water independently couples friendship with flowing out the water at low temperature of high temperature heat pump evaporator by the efficient heat of same heat exchanger progress
Change.In heat coupling process, high temperature heat pump carries out high efficiency energy with refrigeration machine and exchanges complementation, then comes back to refrigeration machine respectively
Condenser and high temperature heat pump evaporator in, each obtained optimal grade thermal source, Energy Efficiency Ratio is significantly increased, reached
Preferable energy-saving effect.Middle low temperature chemical industry is the method can be widely used in, is made wine, edible fat production is low in biology extraction production
In warm solvent distillation recovery system, electric energy low consumption and enterprise's production zero-emission purpose are realized.
In Distallation systm, high temperature heat pump 1 provides the heat of heated solvent and solvent evaporation, and most of energy is from low-grade
Thermal source, generally use water source is as thermal source, and water source temperature is typically relatively low, and generally between 10-15 degree, high temperature heat pump is inhaled when heating
Temperature reduces 5-8 degree after receiving the energy at water source, and the condenser used heat coolant-temperature gage of water cooling refrigeration machine 2 is between 40-45 degree.Heat pump system
When hot, the relatively low influence heat efficiency of water source temperature.Equally, if the water temperature into refrigerator condenser is higher, Energy Efficiency Ratio is relatively low.
The present invention is carried out using the hot water that coupling heat exchanger 3 is discharged to refrigerator condenser and the cold water of high temperature heat pump evaporator discharge
Efficient depth heat coupling, makes the water temperature for coming back to refrigerator condenser be maintained between 20-25 degree, refrigeration machine Energy Efficiency Ratio obtains
To significantly improving.In addition, return to the water temperature of high temperature heat pump evaporator between 20-25 degree, high temperature heat pump heating energy efficiency ratio is also
To significantly improving.In order to which refrigeration machine and high temperature heat pump carry out high efficiency energy complementation, it is desirable to which high temperature heat pump model is slightly larger than refrigeration machine
Model.Evaporation point is first heated in view of solvent before distillation, just starts to distill, so high temperature heat pump needs autonomous working
Heat energy source, the present invention using the device of air energy heat exchanger 4 supplement high temperature heat pump evaporator heat energy.Refrigeration machine condenses and vapour
Change is carried out simultaneously, and the problem of working independently is not present in refrigeration machine, so, the present invention, which is not done, specially to be designed.
Using air energy heat exchanger servicing unit, during supplementing high temperature heat pump heat-source energy, because high temperature heat pump steams
Hair device loop working medium is less, and thermal capacity is small, and air energy heat exchanger can timely additional heat.Using the efficient coupling heat of the present invention
Exchanger, refrigeration machine can be made each to obtain optimal thermal source with high temperature heat pump, refrigeration machine and high temperature heat pump all have higher energy
Effect ratio.So as to reach energy-conservation purpose.The present invention is also arranged the waste gas of distillation equipment intermediate pump in addition to reclaiming refrigeration machine heat
Heat release can be reclaimed by waste heat recoverer 5, high temperature heat pump is in high energy efficiency state all the time.The Coupling Thermal that the present invention uses
Exchanger can be plate type heat exchanger, or shell-tube type calandria heat exchanger.
Figure of description
Fig. 1 is the structural representation of the present invention.
Embodiment
The present invention is described in further detail with reference to embodiments, but thus the present invention is not restricted.
Embodiment：Solvent recovery in our company's lycopene production process is condensation recovery ethyl acetate in still-process
Process, before technological transformation, Distallation systm uses power consumption 30KW water-cooling screw rod refrigeration machines, refrigerating capacity 95KW, cooling tower summer
Season 35 degree, power consumption 30KW of leaving water temperature, refrigeration machine low temperature leaving water temperature -5 spends.System heating is added using 105KW directly electricity
Hot mode, during normal work, this Distallation systm power consumption 135KW.Using the present invention heat efficient coupling energy conserving system,
Heat is carried out using heat exchange area 5M2 plate type heat exchangers with high temperature heat pump to refrigeration machine to couple, into the water of refrigerator condenser
Temperature is maintained at 20-25 degree, and the water temperature into high temperature heat pump evaporator is maintained at 20-25 degree.After testing, refrigeration mechanism cold reaches
120KW, refrigeration machine low temperature leaving water temperature reach -6 degree, and refrigeration machine power consumption is reduced to 25.2KW, and Energy Efficiency Ratio is brought up to by 3.2
4.8, solvent recovering rate is also improved.High temperature heat pump uses power consumption 40KW units, under standard condition, heating capacity
110KW, 80 degree of heat-pump hot-water outlet temperature.Using the coupled system of the present invention, and use auxiliary air energy warmer and vacuum
Pump waste gas heat reclamation device, high temperature heat pump inflow temperature is set to be maintained at 25 degree, heat-pump hot-water leaving water temperature is constant, and heating capacity reaches
130KW, heat pump power consumption are reduced to 34KW, and Energy Efficiency Ratio brings up to 3.82 by 2.75.Due to direct using high temperature heat pump substitution
Electric heater unit and heat efficient coupling energy conserving system, whole Distallation systm power consumption are reduced to 59.2KW, with phase before transformation
Than system saving electricity 56.1%.Because refrigeration machine power consumption reduces 4.8KW, refrigerating capacity increase 25KW.Heat pump power consumption reduces
6KW, heating capacity increase 20KW, has reached the purpose of expected electricity-saving high efficiency.
According to the heat coupling principle of the present invention, using the shell-tube type Flat-tube heat exchanger of same heat exchange area, equally may be used
To reach identical purpose.
Claims (3)
1. a kind of high temperature heat pump of distillation equipment and refrigeration machine heat coupling energy-saving system, it is characterised in that the energy conserving system
It is by heat pump of high-temp water source（1）, water cooling refrigeration machine（2）, coupling heat exchanger（3）, air energy heat exchanger（4）, waste heat recoverer
（5）, circulating pump composition；
Water cooling refrigeration machine（2）Condenser and heat pump of high-temp water source（1）Evaporator by coupling heat exchanger（3）Carry out heat
Coupling；
Pass through air energy heat exchanger（4）Supplement heat pump of high-temp water source（1）Evaporator heat energy；
Heat pump of high-temp water source（1）Loop in waste heat recoverer（5）Reclaim the waste gas discharge heat energy of distillation equipment intermediate pump.
2. the high temperature heat pump of distillation equipment according to claim 1 and refrigeration machine heat coupling energy-saving system, its feature exist
In high temperature heat pump（1）It can work independently.
3. the high temperature heat pump of distillation equipment according to claim 2 and refrigeration machine heat coupling energy-saving system, its feature exist
In the coupling heat exchanger（3）It is plate type heat exchanger either shell-tube type calandria heat exchanger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410845558.XA CN104534741B (en) | 2014-12-31 | 2014-12-31 | A kind of high temperature heat pump of distillation equipment and refrigeration machine heat coupling energy-saving system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410845558.XA CN104534741B (en) | 2014-12-31 | 2014-12-31 | A kind of high temperature heat pump of distillation equipment and refrigeration machine heat coupling energy-saving system |
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| Publication Number | Publication Date |
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| CN104534741A CN104534741A (en) | 2015-04-22 |
| CN104534741B true CN104534741B (en) | 2018-04-06 |
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| CN201410845558.XA Active CN104534741B (en) | 2014-12-31 | 2014-12-31 | A kind of high temperature heat pump of distillation equipment and refrigeration machine heat coupling energy-saving system |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108826739A (en) * | 2018-08-13 | 2018-11-16 | 荏原冷热系统（中国）有限公司 | Absorption installation and residual neat recovering system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201021855Y (en) * | 2006-12-20 | 2008-02-13 | 广东西屋康达空调有限公司 | Overlapped coupling high-temperature heat reuse air-conditioner group |
| CN201074920Y (en) * | 2007-06-27 | 2008-06-18 | 王全龄 | Heat pump type air conditioner and water heater being suitable for broad temperature surroundings running in high efficiency |
| CN203454403U (en) * | 2013-08-20 | 2014-02-26 | 天津君歌舜尧分子蒸馏设备有限公司 | Heat exchange system of molecular distillation heat pump |
| CN103803668A (en) * | 2014-02-28 | 2014-05-21 | 济钢集团有限公司 | System for recovering residual heat of ammonia vapor on top of surplus ammonia water ammonia still |
-
2014
- 2014-12-31 CN CN201410845558.XA patent/CN104534741B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201021855Y (en) * | 2006-12-20 | 2008-02-13 | 广东西屋康达空调有限公司 | Overlapped coupling high-temperature heat reuse air-conditioner group |
| CN201074920Y (en) * | 2007-06-27 | 2008-06-18 | 王全龄 | Heat pump type air conditioner and water heater being suitable for broad temperature surroundings running in high efficiency |
| CN203454403U (en) * | 2013-08-20 | 2014-02-26 | 天津君歌舜尧分子蒸馏设备有限公司 | Heat exchange system of molecular distillation heat pump |
| CN103803668A (en) * | 2014-02-28 | 2014-05-21 | 济钢集团有限公司 | System for recovering residual heat of ammonia vapor on top of surplus ammonia water ammonia still |
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| CN104534741A (en) | 2015-04-22 |
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