CN103168834B - Fruit and vegetable temperature activation processing system - Google Patents
Fruit and vegetable temperature activation processing system Download PDFInfo
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- CN103168834B CN103168834B CN201310111691.8A CN201310111691A CN103168834B CN 103168834 B CN103168834 B CN 103168834B CN 201310111691 A CN201310111691 A CN 201310111691A CN 103168834 B CN103168834 B CN 103168834B
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Abstract
The invention discloses a fruit and vegetable temperature activation processing system, which comprises a thermodynamic reverse circulation system, a current-carrying agent system and a fruit and vegetable processing system, wherein the thermodynamic reverse circulation system is composed of a compressor, a four-way reversing valve, a heat exchanger, a throttling device and a first plate type heat exchanger; the current-carrying agent system is formed by connecting a first circulating pump, the first plate type heat exchanger with a second plate type heat exchanger in sequence; and the fruit and vegetable processing system is formed by connecting the second plate type heat exchanger, a super-cooling releaser, a fruit and vegetable storage device, a filter with a second circulating pump in sequence. Due to conversion of the four-way reversing valve, the fruit and vegetable temperature activation processing system disclosed by the invention is capable of realizing two functions, namely the thermal activation processing function and cold activation processing function of fruits and vegetables; and the fruit and vegetable temperature activation processing system is high in energy utilization rate, energy-saving and environment-friendly and is capable of effectively reducing equipment investment.
Description
Technical field
The invention belongs to preserving fruit and vegetable utilizing preconditioning technique, more particularly, relate to a kind of device that utilizes the contrary circulation realization of thermodynamics to carry out cold shock processing and heat shock processing to fruits and vegetables.
Background technology
For a long time, Chemical Preservative Method of Fruits is widely used in preserving fruit and vegetable utilizing field always.Along with the pay attention to day by day of people to healthy and food security, the physical fresh-keeping method with advantages such as nontoxic, pollution-free, noresidues is just becoming the focus in preserving fruit and vegetable utilizing field.Wherein, fruits and vegetables temperature intensify processing (comprising cold shock processing and heat shock processing) because of have fresh-keeping effect good, be easy to the concern that realizes, the plurality of advantages such as easy and simple to handle is subject to people day by day.It is reported, cold shock is processed mainly taking mixture of ice and water as treatment media, by manually ice cube and cold water mix realization by a certain percentage, operates comparatively loaded down with trivial details.In addition, mixture of ice and water medium floe proportion is larger, has seriously reduced effective use volume of fruits and vegetables storage devices, and contained ice cube easily scratches fruit and vegetable surfaces, causes microorganism invasion to cause and rots, and causes economic loss.Heat shock is processed and is mainly realized by electric-heating water, expends a large amount of high-grade electric energy.At present, have no fruits and vegetables temperature and intensify the relevant report of processing special equipment, therefore design a kind of fruits and vegetables temperature energy-efficient, that have cold shock processing and heat shock processing capacity concurrently and intensify treatment system, become one of the active demand in China's preserving fruit and vegetable utilizing field.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, provide a kind of based on thermodynamics against circulation theory, the fruits and vegetables temperature that can realize cold shock processing and two kinds of functions of heat shock processing intensifies treatment system, intensify to solve China's fruits and vegetables temperature the problem that lacks the special purpose device of efficient energy-saving in processing procedure, promote fruits and vegetables temperature to intensify research and the application of processing.
Technical purpose of the present invention is achieved by following technical proposals:
Fruits and vegetables temperature intensifies treatment system, comprises the thermodynamics inverse circulation systerm being made up of compressor, four-way change-over valve, heat exchanger, throttling arrangement and the first plate type heat exchanger; The current-carrying agent system being connected to form successively by the first circulating pump, the first plate type heat exchanger and the second plate type heat exchanger; The fruits and vegetables treatment system being connected to form successively by the second plate type heat exchanger, the cold remover of mistake, fruits and vegetables storage device, filter and the second circulating pump.
In technical solution of the present invention, compressor air suction mouth is all connected with four-way change-over valve with exhaust outlet, all the other two interfaces of four-way change-over valve are connected with the first plate type heat exchanger one wing passage with heat exchanger respectively, and above-mentioned two other one end of heat exchanger are connected by throttling arrangement, form thermodynamics inverse circulation systerm; Current-carrying agent system, respectively with inverse circulation systerm and the shared plate type heat exchanger (the first plate type heat exchanger and the second plate type heat exchanger) of fruits and vegetables treatment system and be connected, is provided with circulating pump between two-plate heat exchanger; The second plate type heat exchanger that fruits and vegetables treatment system shares by fruits and vegetables storage device, filter, the second circulating pump, with current-carrying agent system, cross cold remover and connect to form successively by pipeline.
Operation principle of the present invention is: realize thermodynamics inverse circulation systerm taking plate type heat exchanger as evaporimeter or condenser by the switching of four-way change-over valve, thereby the current-carrying agent of flowing through in cooling or heating refrigerating medium system, be cooled or heat after current-carrying agent share plate type heat exchanger by other one cold or heat passed to the water of flowing through.When refrigerating operaton, will in fruits and vegetables treatment system, be water-cooled to low temperature or supercooled state, after crossing cold remover effect, obtain low-temperature cold water or mixture of ice and water, carry out cold shock processing.When heating operation, the water in fruits and vegetables treatment system is heated to temperature required, carries out heat shock processing.Water lines entrance is provided with filter and enters to prevent impurity.
The technical scheme of system of the present invention is connected with current-carrying agent system by the first plate type heat exchanger for thermodynamics inverse circulation systerm on the whole, and the first plate type heat exchanger one side is cold-producing medium, and opposite side is current-carrying agent.Current-carrying agent system is connected with fruits and vegetables treatment system by the second plate type heat exchanger, and the second plate type heat exchanger one side is current-carrying agent, and opposite side is water.Owing to adopting thermodynamics inverse circulation systerm that cold and heat are provided, and passed through cold process preparing ice aqueous mixtures, the effect of bringing is:
(1) by the conversion of four-way change-over valve, can make system can realize fruits and vegetables heat shock processing and two functions of cold shock processing, energy utilization rate is high, energy-conserving and environment-protective have also effectively reduced equipment investment.
(2) adopted cold process preparing ice aqueous mixtures for fruits and vegetables cold shock processing, the ice crystal that produces small, thereby effectively avoided the scuffing of conventional method medium floe to fruit and vegetable surfaces, improved fruit-vegetable quality.
(3) system not only can preparing ice aqueous mixtures, also can produce different temperatures low-temperature cold water, has overcome conventional mixture of ice and water cold shock temperature and be the limitation of 0 DEG C, has widened the temperature range of fruits and vegetables cold shock processing.
Brief description of the drawings
Fig. 1 system architecture of the present invention and cold shock operational mode schematic diagram.
Fig. 2 system architecture of the present invention and heat shock operational mode schematic diagram.
Wherein 1 is four-way change-over valve, and 2 is compressor, and 3 is heat exchanger, and 4 is throttling arrangement, and 5 is the first plate type heat exchanger, and 6 is the first circulating pump, and 7 is the second plate type heat exchanger, and 8 was cold remover, and 9 is the second circulating pump, and 10 is filter, and 11 is fruits and vegetables storage device.
Detailed description of the invention
Further technical scheme of the present invention is described below in conjunction with the drawings and specific embodiments.
As shown in accompanying drawing 1-2, fruits and vegetables temperature of the present invention intensifies treatment system, comprises the thermodynamics inverse circulation systerm being made up of compressor 2, four-way change-over valve 1, heat exchanger 3, throttling arrangement 4 and the first plate type heat exchanger 5; The current-carrying agent system being connected to form successively by the first circulating pump 6, the first plate type heat exchanger 5 and the second plate type heat exchanger 7; The fruits and vegetables treatment system being connected to form successively by the second plate type heat exchanger 7, the cold remover 8 of mistake, fruits and vegetables storage device 11, filter 10 and the second circulating pump 9.
Wherein said the first plate type heat exchanger 5 and the second plate type heat exchanger 7 select two to enter the heat exchanger of scene 2 formula, so that form above-mentioned three treatment systems; The cold remover 8 of described mistake, for being prepared into subcooled water in ice slurry (being 0 DEG C of mixture of ice and water).
In thermodynamics inverse circulation systerm, utilize an import of the first plate type heat exchanger 5 to be connected with four-way change-over valve 1 with throttling arrangement 4 respectively with an outlet, throttling arrangement 4 is connected with heat exchanger 3, heat exchanger 3 is connected with four-way change-over valve 1, the air inlet of compressor 2 is connected with four-way change-over valve 1 with exhaust outlet, like this, by adjusting the state of four-way change-over valve 1, to realize the circulation of the different directions of cold-producing medium in this system, described cold-producing medium is selected this area general refrigerant.
In current-carrying agent system, another group import of the first plate type heat exchanger 5 is connected with outlet with one group of import of the second plate type heat exchanger 7 respectively with outlet, forms current-carrying agent circulation line, and the first circulating pump 6 is set in pipeline, and ethylene glycol is selected in described current-carrying agent.
In fruits and vegetables treatment system, another group import of the second plate type heat exchanger 7 is connected with the second circulating pump 9, the cold remover 8 of mistake respectively with outlet, crossing cold remover 8 is connected with fruits and vegetables storage device 11, so that utilize ice slurry prepared by subcooled water to flow in fruits and vegetables storage device 11, in described fruits and vegetables storage device 11, be provided with filter 10, for filtering the nucleation material of ice crystal and ice slurry, to avoid its impact on the second plate type heat exchanger; Described filter 10 is connected with the second circulating pump 9, to realize the object of the ice water circulation of melting in fruits and vegetables storage device; For further ensureing the filtration of the nucleation material in ice crystal and ice slurry, can be chosen in the pipeline between the second circulating pump 9 and the second plate type heat exchanger 7 filter is set again, for filtering the nucleation material of ice crystal and ice slurry, to avoid its impact on the second plate type heat exchanger; In this system, select water as circulatory mediator.
Utilize above-mentioned fruits and vegetables temperature to intensify treatment system, change with two kinds of mode operations by four-way change-over valve:
The first pattern (cold shock tupe): four-way change-over valve 1 is set, compressor 2 exhaust outlets are communicated with heat exchanger 3, air entry is connected with the first plate type heat exchanger 5, the current-carrying agent of flowing through taking the first plate type heat exchanger 5 as evaporator cools, from exhaust outlet of compressor high temperature and high pressure gaseous refrigerant out after heat exchanger heat exchange, after throttling arrangement, enter the first plate type heat exchanger to current-carrying agent lower the temperature, flow back to through compressor inlet.Under the effect of the first circulating pump 6, cooled current-carrying agent flows into the second plate type heat exchanger 7.When preparing ice aqueous mixtures is cold shock treatment media, water in fruits and vegetables storage device 11 is sent into the second plate type heat exchanger 7 and is cooled to supercooled state through filter 10, the second circulating pump 9 under the effect of the second circulating pump 9, destroys the supercooled state of water and produces ice slurry and flow into fruits and vegetables storage device 11 fruits and vegetables are carried out to cold shock processing through cold remover 8; When producing low-temperature cold water and being cold shock treatment media, crossing cold remover 8 is failure to actuate, water in fruits and vegetables storage device 11 is sent into the second plate type heat exchanger 7 through filter 10, the second circulating pump 9 and is cooled to temperature requiredly under the effect of the second circulating pump 9, flows into fruits and vegetables storage device 11 fruits and vegetables are carried out to cold shock processing through cold remover 8.
The second pattern (heat shock tupe): four-way change-over valve 1 is set, compressor 2 exhaust outlets are communicated with the first plate type heat exchanger 5, air entry is connected with heat exchanger 3, heat the current-carrying agent of flowing through taking the first plate type heat exchanger 5 as condenser, from exhaust outlet of compressor high temperature and high pressure gaseous refrigerant out after the first plate type heat exchanger condensation heat release, after throttling arrangement, then evaporate through heat exchanger, flow back to finally by overcompression machine air inlet.Under the effect of the first circulating pump 6, the current-carrying agent after intensification flows into the second plate type heat exchanger 7.Water in fruits and vegetables storage device 11 is sent into the second plate type heat exchanger 7 and is heated to temperature required through filter 10, the second circulating pump 9 under the effect of the second circulating pump 9, flow into fruits and vegetables storage device 11 through cold remover 8 fruits and vegetables are carried out to heat shock processing, in this process, cross cold remover 8 and be failure to actuate.
In implementation process, can carry out monitoring to the temperature of fruits and vegetables storage device 11 by microsystem, and by controlling compressor horsepower, throttling arrangement (control flow), the first and second circulating pumps (control flow), to realize the effect of heat exchange in the first plate type heat exchanger and the second plate type heat exchanger, realize the control constantly to fruits and vegetables storage device 11 temperature.
Above the present invention is done to exemplary description; should be noted that; in the situation that not departing from core of the present invention, the replacement that is equal to that any simple distortion, amendment or other those skilled in the art can not spend creative work all falls into protection scope of the present invention.
Claims (5)
1. fruits and vegetables temperature intensifies treatment system, it is characterized in that, comprises the thermodynamics inverse circulation systerm being made up of compressor, four-way change-over valve, heat exchanger, throttling arrangement and the first plate type heat exchanger; The current-carrying agent system being connected to form successively by the first circulating pump, the first plate type heat exchanger and the second plate type heat exchanger; The fruits and vegetables treatment system being connected to form successively by the second plate type heat exchanger, the cold remover of mistake, fruits and vegetables storage device, filter and the second circulating pump, described the first plate type heat exchanger and the second plate type heat exchanger are selected two heat exchangers that enter scene 2 formula, the cold remover of described mistake, for being prepared into subcooled water in ice slurry; Wherein:
In thermodynamics inverse circulation systerm, utilize an import of the first plate type heat exchanger to be connected with four-way change-over valve with throttling arrangement respectively with an outlet, throttling arrangement is connected with heat exchanger, and heat exchanger is connected with four-way change-over valve, and the air inlet of compressor is connected with four-way change-over valve with exhaust outlet;
In current-carrying agent system, another group import of the first plate type heat exchanger is connected with outlet with one group of import of the second plate type heat exchanger respectively with outlet, forms current-carrying agent circulation line, and the first circulating pump is set in pipeline;
In fruits and vegetables treatment system, another group import of the second plate type heat exchanger is connected with the second circulating pump, the cold remover of mistake respectively with outlet, crossing cold remover is connected with fruits and vegetables storage device, so that utilize ice slurry prepared by subcooled water to flow in fruits and vegetables storage device, in described fruits and vegetables storage device, be provided with filter, for filtering the nucleation material of ice crystal and ice slurry, to avoid its impact on the second plate type heat exchanger; Described filter is connected with the second circulating pump, to realize the object of the ice water circulation of melting in fruits and vegetables storage device.
2. fruits and vegetables temperature according to claim 1 intensifies treatment system, it is characterized in that, in described thermodynamics inverse circulation systerm, cold-producing medium is selected general refrigerant; In described current-carrying agent system, ethylene glycol is selected in current-carrying agent; In described fruits and vegetables treatment system, select water as circulatory mediator.
3. fruits and vegetables temperature according to claim 1 intensifies treatment system, it is characterized in that, for further ensureing the filtration of the nucleation material in ice crystal and ice slurry, in pipeline between the second circulating pump and the second plate type heat exchanger, filter is set again, for filtering the nucleation material of ice crystal and ice slurry, to avoid its impact on the second plate type heat exchanger.
4. fruits and vegetables temperature as claimed in claim 1 intensifies the operation method for the treatment of system, it is characterized in that, changes with following two kinds of mode operations by four-way change-over valve:
The first pattern, be cold shock tupe: four-way change-over valve is set, exhaust outlet of compressor is communicated with heat exchanger, air entry is connected with the first plate type heat exchanger, the current-carrying agent of flowing through taking the first plate type heat exchanger as evaporator cools, under the effect of the first circulating pump, cooled current-carrying agent flows into the second plate type heat exchanger, when preparing ice aqueous mixtures is cold shock treatment media, water in fruits and vegetables storage device is process filter under the effect of the second circulating pump, the second circulating pump is sent into the second plate type heat exchanger and is cooled to supercooled state, destroy the supercooled state of water and produce ice slurry and flow into fruits and vegetables storage device fruits and vegetables are carried out to cold shock processing through cold remover, when producing low-temperature cold water and being cold shock treatment media, crossing cold remover is failure to actuate, water in fruits and vegetables storage device is sent into the second plate type heat exchanger through filter, the second circulating pump and is cooled to temperature requiredly under the effect of the second circulating pump, flows into fruits and vegetables storage device fruits and vegetables are carried out to cold shock processing through cold remover,
The second pattern, be heat shock tupe: four-way change-over valve is set, exhaust outlet of compressor is communicated with the first plate type heat exchanger, air entry is connected with heat exchanger, heat the current-carrying agent of flowing through taking the first plate type heat exchanger as condenser, under the effect of the first circulating pump, current-carrying agent after intensification flows into the second plate type heat exchanger, water in fruits and vegetables storage device is process filter under the effect of the second circulating pump, the second circulating pump is sent into the second plate type heat exchanger and is heated to temperature required, flow into fruits and vegetables storage device through cold remover fruits and vegetables are carried out to heat shock processing, in this process, crossing cold remover is failure to actuate.
5. fruits and vegetables temperature according to claim 4 intensifies the operation method for the treatment of system, it is characterized in that, in implementation process, by microsystem, the temperature of fruits and vegetables storage device is carried out to monitoring, and by controlling compressor horsepower, throttling arrangement, the first and second circulating pumps, to realize the effect of heat exchange in the first plate type heat exchanger and the second plate type heat exchanger, realize the control constantly to fruits and vegetables storage device temperatures.
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| CN201310111691.8A CN103168834B (en) | 2013-04-01 | 2013-04-01 | Fruit and vegetable temperature activation processing system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103353196A (en) * | 2013-07-02 | 2013-10-16 | 天津大学 | System for eliminating ice block of supercooled water ice-making apparatus by using heat of condensation |
| CN103416473A (en) * | 2013-08-23 | 2013-12-04 | 天津大学 | Multifunctional efficient fruit and vegetable temperature shock processing device and operation method thereof |
| CN103621612A (en) * | 2013-12-02 | 2014-03-12 | 天津大学 | Movable fruit and vegetable temperature shock processing system without adopting electricity |
| CN110671838A (en) * | 2019-10-18 | 2020-01-10 | 天津商业大学 | Apple precooling device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101843276A (en) * | 2010-05-25 | 2010-09-29 | 天津大学 | Energy-saving multifunctional cold-heat pretreatment device for fruits and vegetables before storage |
| CN101919436A (en) * | 2010-09-02 | 2010-12-22 | 天津大学 | Heat pump type pressure gradient fruit vegetable heat treatment library |
| CN102499280A (en) * | 2011-12-15 | 2012-06-20 | 天津大学 | Bidirectional differential pressure type fruit and vegetable cold shock preprocessing device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN203167937U (en) * | 2013-04-01 | 2013-09-04 | 天津大学 | Fruit/vegetable temperature shock treatment system |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101843276A (en) * | 2010-05-25 | 2010-09-29 | 天津大学 | Energy-saving multifunctional cold-heat pretreatment device for fruits and vegetables before storage |
| CN101919436A (en) * | 2010-09-02 | 2010-12-22 | 天津大学 | Heat pump type pressure gradient fruit vegetable heat treatment library |
| CN102499280A (en) * | 2011-12-15 | 2012-06-20 | 天津大学 | Bidirectional differential pressure type fruit and vegetable cold shock preprocessing device |
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