CN103168834A - Fruit and vegetable temperature activation processing system - Google Patents
Fruit and vegetable temperature activation processing system Download PDFInfo
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- CN103168834A CN103168834A CN2013101116918A CN201310111691A CN103168834A CN 103168834 A CN103168834 A CN 103168834A CN 2013101116918 A CN2013101116918 A CN 2013101116918A CN 201310111691 A CN201310111691 A CN 201310111691A CN 103168834 A CN103168834 A CN 103168834A
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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 the preserving fruit and vegetable utilizing preconditioning technique, more particularly, relate to a kind of device that utilizes the contrary circulation of thermodynamics to realize fruits and vegetables are carried out cold shock processing and heat shock processing.
Background technology
For a long time, Chemical Preservative Method of Fruits is widely used in the 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, the fruits and vegetables temperature intensify processing (comprise cold shock processing and heat shock process) because of have fresh-keeping effect good, be easy to realize, easy and simple to handle etc. that plurality of advantages receives people's concern day by day.It is reported, cold shock is processed mainly take 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 the microorganism invasion to cause and rots, 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 the fruits and vegetables temperature and intensify the relevant report of processing special equipment, therefore design a kind of energy-efficient, fruits and vegetables temperature 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 the contrary circulation theory of thermodynamics, the fruits and vegetables temperature that can realize two kinds of functions of cold shock processing and heat shock processing intensifies treatment system, intensify to solve China's fruits and vegetables temperature the problem that lacks the isolated plant of efficient energy-saving in processing procedure, promote the fruits and vegetables temperature to intensify research and the application of processing.
Technical purpose of the present invention is achieved by following technical proposals:
The fruits and vegetables temperature intensifies treatment system, comprises the thermodynamics inverse circulation systerm that is comprised of compressor, four-way change-over valve, heat exchanger, throttling arrangement and the first plate type heat exchanger; The current-carrying agent system that is connected to form successively by the first circulating pump, the first plate type heat exchanger and the second plate type heat exchanger; By the second plate type heat exchanger, cross the fruits and vegetables treatment system that cold remover, fruits and vegetables storage device, filter and the second circulating pump connect to form successively.
In technical solution of the present invention, the compressor air suction mouth all is 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 the other end of above-mentioned two heat exchangers is connected by throttling arrangement, consist of the thermodynamics inverse circulation systerm; The plate type heat exchanger that current-carrying agent system is connected with the fruits and vegetables treatment system with inverse circulation systerm respectively (the first plate type heat exchanger be connected plate type heat exchanger) and being connected is provided with circulating pump between the two-plate heat exchanger; The second plate type heat exchanger that the 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: the switching by four-way change-over valve realizes the thermodynamics inverse circulation systerm take plate type heat exchanger as evaporimeter or condenser, thereby the current-carrying agent of flowing through in cooling or heating refrigerating medium system, be cooled or heat after the current-carrying agent share plate type heat exchanger by other one cold or heat passed to the water of flowing through.During refrigerating operaton, will be water-cooled to low temperature or supercooled state in the fruits and vegetables treatment system, obtain low-temperature cold water or mixture of ice and water after passing through cold remover effect, carry out cold shock and process.During heating operation, the water in the fruits and vegetables treatment system is heated to temperature required, carries out heat shock and process.The 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 the thermodynamics inverse circulation systerm on the whole, and the first plate type heat exchanger one side is cold-producing medium, and opposite side is the current-carrying agent.Current-carrying agent system is connected with the fruits and vegetables treatment system by the second plate type heat exchanger, and the second plate type heat exchanger one side is the current-carrying agent, and opposite side is water.Because employing thermodynamics inverse circulation systerm provides cold and heat, 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 to be used for the fruits and vegetables cold shock and processed, 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) but system's preparing ice aqueous mixtures not only also can be produced the different temperatures low-temperature cold water, overcome conventional mixture of ice and water cold shock temperature and be the limitation of 0 ℃, widened the temperature range that the fruits and vegetables cold shock is processed.
Description of 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 the fruits and vegetables storage device.
The specific embodiment
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 that is comprised 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 that is 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; By the second plate type heat exchanger 7, cross the fruits and vegetables treatment system that cold remover 8, fruits and vegetables storage device 11, filter 10 and the second circulating pump 9 connect to form successively.
Wherein said the first plate type heat exchanger 5 and the second plate type heat exchanger 7 select two to advance the heat exchanger of scene 2 formula, so that form above-mentioned three treatment systems; The cold remover 8 of described mistake is used for subcooled water is prepared into ice slurry (being 0 ℃ of mixture of ice and water).
In the 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 selects this area general refrigerant to get final product.
In current-carrying agent system, another group import of the first plate type heat exchanger 5 and outlet be respectively with one group of import of the second plate type heat exchanger 7 with export and be connected, formation current-carrying agent circulation line, and the first circulating pump 6 is set in pipeline, ethylene glycol is selected in described current-carrying agent.
In the 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 the ice slurry of subcooled water preparation to flow in fruits and vegetables storage device 11, be provided with filter 10 in described fruits and vegetables storage device 11, be used for filtering the nucleation material of ice crystal and ice slurry, to avoid it on the impact of the second plate type heat exchanger; Described filter 10 is connected with the second circulating pump 9, with the purpose of the ice water circulation that realizes melting in the fruits and vegetables storage device; For further guaranteeing 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, be used for filtering the nucleation material of ice crystal and ice slurry, to avoid it on the impact of the second plate type heat exchanger; Select water as circulatory mediator in this system.
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 take the first plate type heat exchanger 5 as evaporator cools, namely after exhaust outlet of compressor high temperature and high pressure gaseous refrigerant process heat exchanger heat exchange out, enter after throttling arrangement 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 the preparing ice aqueous mixtures is the 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 the ice slurry and flow into 11 pairs of fruits and vegetables of fruits and vegetables storage device and carry out cold shock and process through cold remover 8; When producing low-temperature cold water and being the 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, flow into 11 pairs of fruits and vegetables of fruits and vegetables storage devices through cold remover 8 and carry out cold shock and process.
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 take the first plate type heat exchanger 5 as condenser, namely from exhaust outlet of compressor high temperature and high pressure gaseous refrigerant out through the first plate type heat exchanger condensation heat release after, 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 11 pairs of fruits and vegetables of fruits and vegetables storage device through cold remover 8 and carry out the heat shock processing, cross cold remover 8 and be failure to actuate in this process.
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 has been done exemplary description; should be noted that; in the situation that do not break away from core of the present invention, the replacement that is equal to that any simple distortion, modification or other those skilled in the art can not spend creative work all falls into protection scope of the present invention.
Claims (8)
1. the fruits and vegetables temperature intensifies treatment system, it is characterized in that, comprises the thermodynamics inverse circulation systerm that is comprised of compressor, four-way change-over valve, heat exchanger, throttling arrangement and the first plate type heat exchanger; The current-carrying agent system that is connected to form successively by the first circulating pump, the first plate type heat exchanger and the second plate type heat exchanger; By the second plate type heat exchanger, cross the fruits and vegetables treatment system that cold remover, fruits and vegetables storage device, filter and the second circulating pump connect to form successively, described the first plate type heat exchanger and the second plate type heat exchanger are selected two heat exchangers that advance the scene 2 formula, the cold remover of described mistake is used for subcooled water is prepared into the ice slurry;
Described compressor air suction mouth all is connected with four-way change-over valve with exhaust outlet, all the other two interfaces of described four-way change-over valve are connected with the first plate type heat exchanger one wing passage with heat exchanger respectively, the other end of above-mentioned two heat exchangers is connected by throttling arrangement, consists of the thermodynamics inverse circulation systerm; Current-carrying agent system is connected with being connected plate type heat exchanger with the first plate type heat exchanger that the thermodynamics inverse circulation systerm is connected with the fruits and vegetables treatment system respectively, is provided with circulating pump between described two plate type heat exchangers.
2. fruits and vegetables temperature according to claim 1 intensifies treatment system, it is characterized in that, in described 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, heat exchanger is connected with four-way change-over valve, the air inlet of compressor is connected with four-way change-over valve with exhaust outlet, passed through to adjust the state of four-way change-over valve like this, to realize the circulation of the different directions of cold-producing medium in this system.
3. fruits and vegetables temperature according to claim 1 intensifies treatment system, it is characterized in that, in described 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, consist of current-carrying agent circulation line, and the first circulating pump is set in pipeline.
4. fruits and vegetables temperature according to claim 1 intensifies treatment system, it is characterized in that, in described 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 the fruits and vegetables storage device, so that utilize the ice slurry of subcooled water preparation to flow in the fruits and vegetables storage device, be provided with filter in described fruits and vegetables storage device, be used for filtering the nucleation material of ice crystal and ice slurry, to avoid it on the impact of the second plate type heat exchanger; Described filter is connected with the second circulating pump, with the purpose of the ice water circulation that realizes melting in the fruits and vegetables storage device.
5. fruits and vegetables temperature according to claim 4 intensifies treatment system, it is characterized in that, in described fruits and vegetables treatment system, for further guaranteeing the filtration of the nucleation material in ice crystal and ice slurry, be chosen in the pipeline between the second circulating pump and the second plate type heat exchanger filter is set again, be used for filtering the nucleation material of ice crystal and ice slurry, to avoid it on the impact of the second plate type heat exchanger.
6. fruits and vegetables temperature according to claim 1 intensifies treatment system, it is characterized in that, in described thermodynamics inverse circulation systerm, described cold-producing medium is selected general refrigerant; In described current-carrying agent system, ethylene glycol is selected in described current-carrying agent; In described fruits and vegetables treatment system, select water as circulatory mediator.
7. 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 the 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 take 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 the preparing ice aqueous mixtures is the cold shock treatment media, water in the fruits and vegetables storage device is the 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 the ice slurry and flow into the fruits and vegetables storage device and fruits and vegetables are carried out cold shock process through cold remover, when producing low-temperature cold water and being the cold shock treatment media, crossing cold remover is failure to actuate, water in the 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, flow into the fruits and vegetables storage device through cold remover and fruits and vegetables are carried out cold shock process,
the second pattern, be the 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 take 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 the fruits and vegetables storage device is the 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 the fruits and vegetables storage device through cold remover fruits and vegetables are carried out the heat shock processing, crossing cold remover in this process is failure to actuate.
8. fruits and vegetables temperature according to claim 7 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 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 the 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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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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| 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 |
| CN203167937U (en) * | 2013-04-01 | 2013-09-04 | 天津大学 | Fruit/vegetable temperature shock treatment system |
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Patent Citations (4)
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| 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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Cited By (4)
| 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 |
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| CN103168834B (en) | 2014-09-17 |
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