CN110973227A - Variable-volume fruit and vegetable heat treatment, precooling and storage all-in-one machine based on soil source - Google Patents
Variable-volume fruit and vegetable heat treatment, precooling and storage all-in-one machine based on soil source Download PDFInfo
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- CN110973227A CN110973227A CN202010015293.6A CN202010015293A CN110973227A CN 110973227 A CN110973227 A CN 110973227A CN 202010015293 A CN202010015293 A CN 202010015293A CN 110973227 A CN110973227 A CN 110973227A
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- 239000002689 soil Substances 0.000 title claims abstract description 80
- 235000012055 fruits and vegetables Nutrition 0.000 title claims abstract description 61
- 238000010438 heat treatment Methods 0.000 title claims abstract description 33
- 238000003860 storage Methods 0.000 title claims abstract description 29
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 30
- 239000003507 refrigerant Substances 0.000 claims abstract description 24
- 238000001816 cooling Methods 0.000 claims abstract description 10
- 238000005265 energy consumption Methods 0.000 claims abstract description 6
- 230000008859 change Effects 0.000 claims description 18
- 238000000034 method Methods 0.000 claims description 7
- 230000008569 process Effects 0.000 claims description 5
- 238000005057 refrigeration Methods 0.000 claims description 5
- 235000013311 vegetables Nutrition 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 claims description 2
- 235000013399 edible fruits Nutrition 0.000 claims description 2
- 238000006073 displacement reaction Methods 0.000 claims 1
- 239000007788 liquid Substances 0.000 description 4
- 230000007547 defect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 235000021022 fresh fruits Nutrition 0.000 description 1
- 238000003958 fumigation Methods 0.000 description 1
- 238000003306 harvesting Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000009545 invasion Effects 0.000 description 1
- 244000000010 microbial pathogen Species 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 238000004018 waxing Methods 0.000 description 1
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- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23B—PRESERVING, e.g. BY CANNING, MEAT, FISH, EGGS, FRUIT, VEGETABLES, EDIBLE SEEDS; CHEMICAL RIPENING OF FRUIT OR VEGETABLES; THE PRESERVED, RIPENED, OR CANNED PRODUCTS
- A23B7/00—Preservation or chemical ripening of fruit or vegetables
- A23B7/005—Preserving by heating
- A23B7/0053—Preserving by heating by direct or indirect contact with heating gases or liquids
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23B—PRESERVING, e.g. BY CANNING, MEAT, FISH, EGGS, FRUIT, VEGETABLES, EDIBLE SEEDS; CHEMICAL RIPENING OF FRUIT OR VEGETABLES; THE PRESERVED, RIPENED, OR CANNED PRODUCTS
- A23B7/00—Preservation or chemical ripening of fruit or vegetables
- A23B7/04—Freezing; Subsequent thawing; Cooling
- A23B7/0425—Freezing; Subsequent thawing; Cooling the material not being transported through or in the apparatus, with or without shaping, e.g. in the form of powder, granules or flakes
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Wood Science & Technology (AREA)
- Zoology (AREA)
- Food Science & Technology (AREA)
- Polymers & Plastics (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
Abstract
The invention discloses a variable-volume fruit and vegetable heat treatment, precooling and storage integrated machine based on a soil source, and belongs to the field of processing and fresh-keeping of fruit and vegetable products. The device mainly comprises a cold and heat source system, a soil source heat exchange system and a fruit and vegetable treatment box. The refrigerant working medium heat exchange loop in the cold and heat source system is connected with the soil side circulating water heat exchange loop in the soil source heat exchange system in parallel and is connected with the air flowing heat exchange loop in the fruit and vegetable treatment box in series; and a soil side circulating water heat exchange loop in the soil source heat exchange system is connected in series with an air flow heat exchange loop in the fruit and vegetable treatment box. The fruit and vegetable processing box body can be adjusted according to the processing amount, the volume is variable, the soil source heat exchange system can be independently started under specific conditions, and low-energy-consumption pre-cooling and storage processing can be carried out by utilizing the cold energy of the soil side.
Description
Technical Field
The invention relates to the field of processing and fresh-keeping of fruit and vegetable products, in particular to a variable-volume type fruit and vegetable heat treatment, precooling and storage integrated device based on a soil source.
Background
At present, the research on the physiological characteristics and the quality of fruits and vegetables during storage and fresh keeping is gradually promoted, and the research method mainly comprises the steps of heat treatment, waxing, ozone fumigation, biological control, synergistic fresh keeping and the like, and covers various fields of physics, chemistry, biology and the like. However, nowadays, fruits and vegetables are treated by using chemical reagents for sterilization and fresh-keeping, and a large amount of harmful chemical substances are remained on the surfaces of the fruits and vegetables, so that the health of eaters is influenced. In order to meet the public demand for fresh fruits and vegetables without chemical residue and reduce the huge economic loss of the fruits and vegetables caused by the invasion of pathogenic microorganisms from the harvest to the eating process. The invention provides an energy-saving and environment-friendly integrated device for heat treatment, precooling and storage of fruits and vegetables by setting forth a simple and feasible physical treatment means and combining with a soil source, so that mechanical damage of the fruits and vegetables caused by complicated procedures in the treatment process is reduced, and the fresh-keeping and storage quality of the fruits and vegetables is improved.
Disclosure of Invention
In order to overcome the defects of the existing fruit and vegetable processing means, the invention provides a variable volume type fruit and vegetable heat treatment, precooling and storage integrated machine based on a soil source. The device can meet the requirements of heat treatment, precooling and storage in the fruit and vegetable treatment process based on the condition of stabilizing the soil source by effectively integrating the heat treatment, precooling and storage functional modules, and can solve the problems of complex separation of fruit and vegetable treatment steps, high energy consumption, large water resource loss, large machine floor area and the like according to the size of the fruit and vegetable treatment volume and the volume of the automatic adjusting device box body.
The technical scheme adopted by the invention is as follows: the treatment device mainly comprises a cold and heat source system, a soil source heat exchange system and a fruit and vegetable treatment box.
The cold and heat source system can transfer cold energy and heat energy to the soil in the box body or the external environment, and when fruits and vegetables are subjected to heat treatment, the refrigerant working medium absorbs the heat energy in the soil through refrigerant working medium circulation and releases the heat energy to the inside of the fruit and vegetable treatment box body; when the fruits and vegetables are pre-cooled and stored, the flow direction of the refrigerant is switched through the four-way reversing valve, so that the refrigerant working medium absorbs the cold in the soil and is released into the fruit and vegetable processing box body.
The soil source heat exchange system provides heat required by heat treatment of the fruits and the vegetables and cold required under precooling and storage conditions. Circulating water flows in a soil side heat exchange loop, and during heat treatment, soil heat in the soil source system is transferred to the cold and heat source system and the fruit and vegetable treatment box; and during pre-cooling and storage treatment, transferring heat in the cold and heat source system and the fruit and vegetable treatment system to the soil.
The fruit and vegetable processing box provides space required by heat treatment, precooling and storage of fruits and vegetables, and can automatically adjust the internal volume of the box body according to the size of the processed fruits and vegetables.
The cold and heat source system comprises a variable frequency compressor, a first phase change heat exchanger, an electronic expansion valve, a second phase change heat exchanger and a four-way reversing valve member.
The soil source heat exchange system consists of a spiral buried pipe soil heat exchanger, a water pump, a first stop valve, a second stop valve, a third stop valve, a fourth stop valve and a heat exchanger.
The fruit and vegetable processing box comprises a variable volume type box body, a differential pressure fan and an air supply outlet.
Further, the cold and heat source system comprises a refrigeration cycle and a heating cycle, and the refrigeration cycle loop is a variable frequency compressor → a four-way reversing valve → a second phase inverter → an electronic expansion valve → a heat exchanger → a variable frequency compressor. During heat treatment, the flow direction of a refrigerant working medium is only switched by the four-way reversing valve inside the cold and heat source system, and a heating cycle is completed from the variable frequency compressor → the four-way reversing valve → the heat exchanger → the electronic expansion valve → the second phase inverter → the variable frequency compressor, so that heat is released to the inside of the fruit and vegetable treatment box.
Furthermore, the soil source heat exchange system is divided into two parts, namely, an underground heat exchange side loop is formed by the spiral buried pipe soil heat exchanger → the second stop valve → the second phase change heat exchanger → the first stop valve → the water pump → the spiral buried pipe soil heat exchanger; and secondly, in some specific conditions, only the soil source heat exchange part system can be started, and the spiral soil heat exchanger for burying the pipe → the third stop valve → the heat exchanger → the fourth stop valve → the water pump → the spiral soil heat exchanger for burying the pipe is used for realizing low-energy precooling or storage by utilizing the cold energy in the soil.
Furthermore, inside the fruit and vegetable processing box, heat exchange is carried out after air passes through the heat exchanger, and an air flow loop is an air supply outlet → a variable volume box body → a differential pressure fan.
The invention has the following advantages:
a. three modes of heat treatment, precooling and storage of fruits and vegetables can be realized according to requirements, and the functions are complete;
b. the volume of the processing box body can be changed according to the processing amount of fruits and vegetables, so that the occupied area is saved;
c. the volume of the treatment box body can be changed according to the treatment capacity of fruits and vegetables, and the corresponding compressor realizes the adjustment of cold or heat through frequency conversion, so that the energy-saving effect is obvious;
d. in the precooling mode or the storage mode, under a specific environment, only the soil source heat exchange part is needed to be started to realize low-energy-consumption precooling or storage by utilizing the cold energy in the soil, so that the energy-saving effect is obvious;
e. the cold and heat source system part can start a refrigeration or heating mode according to the requirement, correspondingly transfer heat or cold energy to the soil, neutralize the cold and heat, and can reduce the defect that the cold or heat of the conventional soil source system is easy to unbalance;
f. because the underground soil can keep a relatively stable temperature throughout the year, compared with an air source, the cold and heat source system has a relatively stable operation condition, long service life of the unit and higher refrigerating and heating efficiency;
description of the drawings.
Fig. 1 is a schematic structural diagram of the principle of the invention.
In the figure: the device comprises a variable-frequency compressor, a first phase-change heat exchanger, a second phase-change heat exchanger, a four-way reversing valve, a spiral buried pipe soil heat exchanger, a water pump, a first stop valve, a second stop valve, a third stop valve, a fourth stop valve, a heat exchanger, a variable-volume box body, a differential pressure fan and an air supply outlet, wherein the variable-volume box body comprises 1, the variable-frequency compressor, 2, the first phase-change heat exchanger, 3, the electronic expansion valve, 4, the second phase-change heat exchanger, 5, the four-way reversing valve, 6, the spiral.
Detailed Description
The present invention will now be further explained with reference to the drawings, but the following description of the preferred embodiments is only a part, and not all, of the present invention. Based on the embodiments described in the present invention, all other related embodiments obtained by those skilled in the art without any creative effort belong to the protection scope of the present invention.
The device can realize the functions of heat treatment, precooling and storage of fruits and vegetables.
Firstly, when the fruits and vegetables are subjected to heat treatment, the cold and heat source system starts the second phase change heat exchanger 4, the four-way reversing valve 5, the variable frequency compressor 1, the first phase change heat exchanger 2 and the electronic expansion valve 3. The flow direction of the refrigerant working medium is second phase heat converter 4 → four-way reversing valve 5 → inverter compressor 1 → first phase heat exchanger 2 → electronic expansion valve 3 → second phase heat converter 4, the liquid refrigerant working medium is evaporated in the second phase heat converter 4, the refrigerant working medium absorbs the heat carried by the circulating water in the soil source heat exchange system and then becomes gaseous refrigerant working medium, then the refrigerant working medium flows through the four-way reversing valve 5 and then enters the inverter compressor 1 for compression, then the refrigerant working medium enters the first phase heat exchanger 2 for condensation by air, and the condensed refrigerant working medium is throttled and depressurized through the electronic expansion valve to complete the heating cycle process. The soil source heat exchange system starts the spiral buried pipe soil heat exchanger 6, the water pump 7, the first stop valve 8 and the second stop valve 9; in the soil side heat exchange circuit, circulating water flows through the spiral buried pipe soil heat exchanger 6 → the second stop valve 9 → the second phase inverter 4 → the first stop valve 8 → the water pump 7 → the spiral buried pipe soil heat exchanger 6; refrigerant working media in the cold and heat source system absorb the heat of circulating water in the second phase change heat exchanger 4 and then flow to the first phase change heat exchanger 2 to release the heat to air, hot air in the fruit and vegetable processing box enters the box body through the air supply opening 15 under the action of the differential pressure fan 14 to carry out heat treatment on fruits and vegetables, and the circulating water after releasing the heat in the soil source system returns to the spiral buried pipe soil heat exchanger 6 to carry out heat exchange with the soil in the ground.
Secondly, when the fruits and vegetables are pre-cooled and stored, the four-way reversing valve 5, the variable frequency compressor 1, the first phase change heat exchanger 2 and the electronic expansion valve 3 are opened in the cold and heat source system, in the second phase change heat exchanger 4, the refrigerant working medium releases heat and then flows through the electronic expansion valve 3 → the first phase change heat exchanger 2 → the four-way reversing valve 5 → the variable frequency compressor 1 → the second phase change heat exchanger 4, the liquid refrigerant working medium is throttled and depressurized in the electronic expansion valve 3, then the liquid refrigerant working medium is evaporated in the first phase change heat exchanger 2 and carries out forced convection heat exchange with glancing air to take away air heat, and the liquid refrigerant working medium enters the variable frequency compressor to be compressed after passing through the four-way. The cooled air enters the box body through the air supply outlet 15 under the drive of the differential pressure fan 14 to pre-cool and store the fruits and vegetables. At this time, the soil source heat exchange system opens the first stop valve 8, the second stop valve 9 and the water pump 7, the spiral buried pipe soil heat exchanger 6 in the soil source heat exchange system is connected with the cold and heat source system second phase heat exchanger 4, and water circulates and reciprocates in the loop spiral buried pipe soil heat exchanger 6 → the second stop valve 9 → the second phase heat exchanger 4 → the first stop valve 8 → the water pump 7 → the spiral buried pipe soil heat exchanger 6 under the driving of the water pump 7, absorbs heat carried by refrigerant in the second phase heat exchanger 4, and then is transmitted to the ground through the spiral soil buried pipe heat exchanger 6.
In addition, under certain specific environments, the cold and heat source system is closed, and only the spiral buried pipe soil heat exchanger 6, the water pump 7, the third stop valve 10, the fourth stop valve 11 and the heat exchanger 12 in the soil source heat exchange system are opened. Through the connection of the spiral pipe laying soil heat exchanger 6 and the heat exchanger 12, the circulating water in the soil side heat exchange loop absorbs the heat of the air passing through the heat exchanger 12 and then flows through the fourth stop valve 11 → the water pump 7 → the spiral pipe laying soil heat exchanger 6 → the third stop valve 10 → the heat exchanger 12, so that the low-energy-consumption pre-cooling and storage can be realized only by utilizing the cold quantity in the soil, and the energy consumption is reduced.
Claims (10)
1. The utility model provides a variable positive displacement fruit vegetables heat treatment, precooling, storage all-in-one based on soil source which characterized in that: the fruit and vegetable processing system comprises a cold and heat source system, a soil source heat exchange system and a fruit and vegetable processing box, wherein the cold and heat source system comprises a variable frequency compressor (1), a first phase change heat exchanger (2), an electronic expansion valve (3), a second phase change heat exchanger (4) and a four-way reversing valve (5); the soil source heat exchange system comprises a spiral buried pipe soil heat exchanger (6), a water pump (7), a first stop valve (8), a second stop valve (9), a third stop valve (10), a fourth stop valve (11) and a heat exchanger (12); the fruit and vegetable processing box comprises a variable volume type box body (13), a differential pressure fan (14) and an air supply outlet (15).
2. The machine for heat treatment, pre-cooling and storage of variable volume fruits and vegetables based on soil source according to claim 1, wherein: when fruits and vegetables are subjected to heat treatment, circulating water in the soil source heat exchange system absorbs heat in soil through the spiral buried pipe soil heat exchanger (6), the circulating water is connected with the second phase change heat exchanger (4) in the cold and heat source system to release the heat to the refrigerant working medium, and the refrigerant working medium releases the heat to air entering the fruit and vegetable treatment box through the first phase change heat exchanger (2).
3. When fruits and vegetables are pre-cooled and stored, the refrigeration and working medium in the cold and heat source system absorbs the air heat in the fruit and vegetable processing box through the first phase change heat exchanger (2), the heat is released to circulating water through the second phase change heat exchanger (4), and the circulating water releases the heat to the soil of the ground through the spiral buried pipe soil heat exchanger (6) in the soil source heat exchange system.
4. Under specific conditions, only the soil source heat exchange system is started, circulating water enters the spiral buried pipe soil heat exchanger (6) to release heat to soil after absorbing air heat in the heat exchanger (12), and fruit and vegetable precooling and storage are carried out under a low energy consumption mode.
5. The machine for heat treatment, pre-cooling and storage of variable volume fruits and vegetables based on soil source according to claim 1, wherein: the soil source heat exchange system is controlled by a first stop valve (8), a second stop valve (9), a third stop valve (10) and a fourth stop valve (11) to control the water flow rate and the flow direction of the system, and a water pump (7) provides circulating water power.
6. The machine for heat treatment, pre-cooling and storage of variable volume fruits and vegetables based on soil source according to claim 1, wherein: and an electronic expansion valve (3) in the cold and heat source system throttles and reduces the pressure of a refrigerant working medium, and regulates the flow of the refrigerant entering a heat exchanger.
7. The machine for heat treatment, pre-cooling and storage of variable volume fruits and vegetables based on soil source according to claim 1, wherein: the four-way reversing valve (5) in the cold and heat source system switches the flow direction of the refrigerant working medium, and different treatment processes of a refrigeration cycle and a heating cycle are met.
8. The machine for heat treatment, pre-cooling and storage of variable volume fruits and vegetables based on soil source according to claim 1, wherein: the variable frequency compressor (1) in the cold and heat source system realizes the adjustment of cold and heat through frequency conversion, and meets the energy-saving requirement.
9. The machine for heat treatment, pre-cooling and storage of variable volume fruits and vegetables based on soil source according to claim 1, wherein: the pressure difference fan (14) in the fruit and vegetable processing box enables air to pass through the surface of the heat exchanger in a forced convection mode for heat exchange.
10. The machine for heat treatment, pre-cooling and storage of variable volume fruits and vegetables based on soil source according to claim 1, wherein: the volume of the variable volume type box body (13) in the fruit and vegetable processing box can be adjusted, and the using space is saved under the condition of different processing amounts.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010015293.6A CN110973227A (en) | 2020-01-07 | 2020-01-07 | Variable-volume fruit and vegetable heat treatment, precooling and storage all-in-one machine based on soil source |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010015293.6A CN110973227A (en) | 2020-01-07 | 2020-01-07 | Variable-volume fruit and vegetable heat treatment, precooling and storage all-in-one machine based on soil source |
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| CN110973227A true CN110973227A (en) | 2020-04-10 |
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| CN202010015293.6A Pending CN110973227A (en) | 2020-01-07 | 2020-01-07 | Variable-volume fruit and vegetable heat treatment, precooling and storage all-in-one machine based on soil source |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006045227A1 (en) * | 2004-10-26 | 2006-05-04 | Shengheng Xu | A ground source heat pump system |
| CN102934681A (en) * | 2012-11-19 | 2013-02-20 | 崔勇 | Food drying and fresh-keeping integrated device |
| CN103574987A (en) * | 2012-08-01 | 2014-02-12 | 吴春渊 | Cold and hot multi-functional economizer system |
| CN103644692A (en) * | 2013-12-02 | 2014-03-19 | 天津大学 | Multifunctional micro-type fruit and vegetable temperature shocking treatment and storage refrigeration house |
| CN110050824A (en) * | 2019-04-10 | 2019-07-26 | 华东交通大学 | Multifunctional air source heat pump fruits and vegetables annealing device |
| CN110285635A (en) * | 2019-06-27 | 2019-09-27 | 河北工业大学 | A kind of constant temperature fresh-keeping base station based on natural energy resources operation |
| CN211608091U (en) * | 2020-01-07 | 2020-10-02 | 华东交通大学 | Fruit and vegetable heat treatment, precooling and storage integrated machine |
-
2020
- 2020-01-07 CN CN202010015293.6A patent/CN110973227A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006045227A1 (en) * | 2004-10-26 | 2006-05-04 | Shengheng Xu | A ground source heat pump system |
| CN103574987A (en) * | 2012-08-01 | 2014-02-12 | 吴春渊 | Cold and hot multi-functional economizer system |
| CN102934681A (en) * | 2012-11-19 | 2013-02-20 | 崔勇 | Food drying and fresh-keeping integrated device |
| CN103644692A (en) * | 2013-12-02 | 2014-03-19 | 天津大学 | Multifunctional micro-type fruit and vegetable temperature shocking treatment and storage refrigeration house |
| CN110050824A (en) * | 2019-04-10 | 2019-07-26 | 华东交通大学 | Multifunctional air source heat pump fruits and vegetables annealing device |
| CN110285635A (en) * | 2019-06-27 | 2019-09-27 | 河北工业大学 | A kind of constant temperature fresh-keeping base station based on natural energy resources operation |
| CN211608091U (en) * | 2020-01-07 | 2020-10-02 | 华东交通大学 | Fruit and vegetable heat treatment, precooling and storage integrated machine |
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