CN201986652U - Energy-saving combined air conditioning device for food freezing and unfreezing device - Google Patents
Energy-saving combined air conditioning device for food freezing and unfreezing device Download PDFInfo
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- CN201986652U CN201986652U CN2010206481089U CN201020648108U CN201986652U CN 201986652 U CN201986652 U CN 201986652U CN 2010206481089 U CN2010206481089 U CN 2010206481089U CN 201020648108 U CN201020648108 U CN 201020648108U CN 201986652 U CN201986652 U CN 201986652U
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
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Abstract
The utility model provides an energy-saving combined air conditioning device for a food freezing and unfreezing device, which consists of three circulation systems, i.e. a solution dehumidifying circulation system, a refrigeration working medium circulation system and a freezing room and unfreezing room air circulation system. A food freezing and unfreezing process is that after air which enters a freezing room passes through a solar solution dehumidifying system firstly to dehumidify and reduce enthalpy, the air passes through an evaporator and is processed to be low-temperature saturated air to cool food; after air which gets out of the freezing room exchanges heat with the return air of an unfreezing room through a heat exchanger under the effect of a fan, the air is heated and humidified by an atmospheric condenser, and the temperature and the humidity of the air are further adjusted through a second evaporator in the unfreezing room, the air is used for unfreezing the food; and an electric heater behind the heat exchanger is used as an auxiliary air heating device, and through the heat exchanger and under the effect of the fan, the return air of the unfreezing room enters a solution dehumidifier for processing and then is fed into the freezing room to realize the entire circulation. The energy-saving combined air conditioning device is mainly used for a food freezing and unfreezing combined system and has a very good energy-saving effect.
Description
Technical field
The utility model relates to air conditioning flow process and the device that is used for food freezing and thaws, and belongs to food cold storage and deforst technique field.
Background technology
Along with the fast development of food industry, people constantly enlarge the frozen food consumption figure in recent years, and are also more and more higher to the quality requirement of frozen food.Yet food product refrigeration, refrigeration enterprise are the large electricity consumers, and wherein the consumption of food product refrigeration, refrigeration processing aspect electric energy will account for 68% of whole business electrical amount according to statistics.How under the prerequisite that guarantees the frozen product quality, reducing power consumption of polymer processing is freezing, refrigeration enterprise question of common concern.
Freezing and thawing is the important operation program of food product refrigeration processing.The freezing method of food is varied, it can be divided into three kinds of freezing by means of air method, mediate contact freezing process and direct contact freezing methods according to the way of contact of cooling medium and food different.The freezing by means of air method adopts the low temperature and high relative humidity air that food is cooled off, and has no side effect, and freezing efficiency is good, is one of at present the most general freezing method.Thawing to be similar to the inverse process that is considered as freezing, and frozen food must thaw before consumption or processing, and reasonably thawing is the key that keeps the frozen food quality.The subject matter that occurs in the course of defrosting of food is juice loss, secondly is bad reactions such as microbial reproduction.At present, Chang Yong defreezing method have that nature thaws, microwave thawing, water thawing and air thawing etc.Naturally it is the most energy-conservation to thaw, but thawing rate is subjected to microbial contamination slowly and easily.Water thawing has the fast characteristics of thawing rate, and has avoided the loss of weight, but exists the microbial contamination in the melt water to freeze problems such as product and solubility loss.Microwave thawing is under action of alternative electric field, utilizes the electrical property of material itself to generate heat to make to freeze product and thaw, and its advantage is that speed is fast, the efficient height, but microwave to water and ice penetrate and be absorbed with difference, cause the heating non-uniform phenomenon easily.Air thawing adopts the circulation of low temperature and high relative humidity force air to thaw, and food defrosting speed is fast, and thaws evenly, and thawing time is short, and food color is fresh, does not have dry and weight saving phenomenon, is one of defreezing method of both economical practicality.
Utilize air as food freezing and the medium that thaws, the quality requirement that can satisfy food freezing well and thaw, in addition with the condensation heat of cold-producing medium in the refrigerating plant the thermal source that thaws as food, make up the hybrid system of refrigerating plant and thawing apparatus, and in process of refrigerastion in conjunction with the solar energy solution dehumidification system, realized reducing the purpose of system energy consumption well.
Summary of the invention
Technical problem: the purpose of this utility model provides a kind of energy-efficient energy saving composite aircondition that is used for food freezing and thawing apparatus.
Technical scheme: the energy saving composite aircondition that the utility model is used for food freezing and thawing apparatus comprises and is used to freeze with the refrigeration working medium cyclic part of air circulation part, cooling and the heating freezing room and the defrosting room circulating air of defrosting food, is used for the concentrated solution regenerating section that the enthalpy circulating air falls in the dehumidifying of freezing room circulating air before cooling processing; Wherein, be used for freezing the air circulation part with defrosting food, the air input of the air output termination evaporimeter of solution moisture removing device is processed into the low temperature saturated air food is carried out freezing processing; The air output order of freezing room connects the showering spray type condenser by second blower fan, gas heat-exchanger, the 4th volume damper, electric heater, another air output of gas heat-exchanger connects solution moisture removing device by first blower fan, realizes whole air circulation;
In the refrigeration working medium cyclic part, the refrigeration working medium output of showering spray type condenser connects first evaporimeter by first refrigerant expansion valve, the output of first evaporimeter connects the refrigeration working medium input of showering spray type condenser by refrigeration compressor, realizes whole refrigeration working medium circulation;
In the dehumidification solution regenerating section, the solution output of solution moisture removing device connects the solution input of solar thermal collector by solution circulation pump, the input of the solution output termination solution regenerator of solar thermal collector, the solution input of the output termination solution moisture removing device of solution regenerator is realized the circulation of whole dehumidification solution.
Its concrete course of work is as follows: the air that enters freezing room falls by the dehumidifying of solar energy solution moisture removing device earlier and is processed into the low temperature saturated air by first evaporimeter again behind the enthalpy food is carried out freezing processing, the air that comes out from freezing room is after the return air heat exchange of next Lu Xianjing gas heat-exchanger of second fan action and defrosting room, behind showering spray type condenser warming and humidifying, again behind the further conditioning of No. the second evaporimeter in the defrosting room to the food processing of thawing, electric heater behind the gas heat-exchanger is as the atmosphere temperature rising servicing unit, the back is mixed under the effect of first blower fan from the return air of freezing room in defrosting room return air by gas heat-exchanger 19 and another road, enters to send into freezing room again after solution moisture removing device is handled and realize whole circulation.
Beneficial effect: the beneficial effects of the utility model are:
1, the utility model adopts solar energy regeneration type solution dehumidification system that the cooling of the evaporator cools in freezing room again behind the enthalpy is fallen in the air dehumidifying earlier that enters freezing room, this not only can less greatly freezing room in the area of evaporimeter, can reduce the frosting of evaporator surface again, improve the service behaviour of equipment greatly.
2, with the condenser heat of cold-producing medium in the refrigerating plant the thermal source that thaws as food, constitute and freeze and the thawing apparatus hybrid system, the condensation heat part of having avoided single type to freeze cold storage cooling device is wasted, and has realized purpose of energy saving, has simplified equipment again.
3, by closing the refrigeration expansion valve of freezing room, and relevant air valve, can realize the independent operating of defrosting room, in addition when food freezing or thaw finish after, can make it from freezing or thawed state changes frozen state over to by regulating corresponding refrigeration expansion valve, the flexibility that equipment uses be more intense.
Description of drawings
Fig. 1 is the energy saving composite air-conditioning system structure composition frame chart of the utility model food freezing and thawing apparatus.
Wherein have: freezing room 1, defrosting room 2, solution regenerator 3, solar thermal collector 4, solution moisture removing device 5, solution circulation pump 6, first volume damper 7, second volume damper 16, the 3rd volume damper 18, the 4th volume damper 20, tendencies adjustable valve 21, first refrigerant expansion valve 8 and second refrigerant expansion valve 11, first evaporimeter 9 and second evaporimeter 12, showering spray type condenser 13, refrigeration compressor 14, electric heater 15, first blower fan 10, second blower fan 17, expansion valve 18, gas heat-exchanger 19.
-------expression air,---the expression refrigeration working medium,---the expression dehumidification solution.
The specific embodiment
Example below in conjunction with 1 pair of utility model of accompanying drawing is described in further detail:
The energy saving composite air-conditioning system of this food freezing and thawing apparatus has three subcycles to constitute, ie in solution dehumidifying circulation, refrigeration working medium circulation and air circulation.Food freeze and the flow process of thawing be enter freeze the storehouse air earlier by solution moisture removing device 5 dehumidify enthalpy falls and after, send into freezing room after first evaporimeter 9 is further lowered the temperature processing, food in the freezing room 1 is carried out freezing processing, the air that acted on then is return air under the effect of second blower fan 17, after dividing two-way wherein one tunnel return air heating up by the return air heat exchange of coming out in gas heat-exchanger 19 and the defrosting room 2, sending into showering spray type condenser 13 heats up behind the humidification, send into defrosting room 2, behind evaporimeter 12 further conditionings, frozen food is carried out forced circulation to thaw, when the shortage of heat of condenser, start 15 pairs of air of electric heater and assist intensification.The return air that comes out from freezing room 1 in another road, adjusting through expansion valve 18, guarantee under the prerequisite of defrosting room air quantity requirement, after the return air that comes out through the defrosting room of gas heat-exchanger 19 mixes, under the effect of first blower fan 10, enter solution moisture removing device 5 and dehumidify again and send into freezing room and realized whole circulation.In addition can be by closing first refrigerant expansion valve 8, the 4th volume damper 20 and first volume damper 7, open tendencies adjustable valve 21 and realize the isolated operation of defrosting rooms, tendencies adjustable valve 21 is in closed condition when freezing room 1 and defrosting room 2 are worked simultaneously.
Refrigerant loop, form by refrigeration compressor 14, showering spray type condenser 13, first evaporimeter 9 and second evaporimeter 12 and first refrigerant expansion valve 8 and second refrigerant expansion valve 11, in freezing room 1, air supply parameter can satisfy by first refrigerant expansion valve 8 of regulating before the evaporimeter 9, and size that also can be by first refrigerant expansion valve 8 after freezing finishing is by freezing to change into frozen state.Second evaporimeter 12 of defrosting room, change its refrigerating capacity by second refrigerant expansion valve 11 of regulating before it, satisfy the needed air parameter of defrosting food, can be after the end of thawing by closing the 4th volume damper 20, regulate the aperture of second refrigerant expansion valve 11, make defrosting room change frozen state over to.
The solar energy solution dehumidification system is by solution moisture removing device 5, solution regenerator 3, solution circulation pump 6, solar thermal collector 4 are formed, solution is to after being dehumidified by the air-supply of sending first blower fan 10, under the effect of green regenerative energy sources solar energy, regenerate, thereby finish solution dehumidification circulation, can regulate the air quantity size that the air quantity that enters dehumidifier 5 also promptly enters freezing room by first volume damper 7.
Its characteristics have: the circulating air of frozen food falls enthalpy by solution moisture removing device 5 dehumidifying earlier and handles before entering evaporimeter 9 coolings; The circulating air that comes out from freezing room 1 divides two-way, and one the tunnel is entering showering spray type condenser warming and humidifying after the circulating air heat exchange that gas heat-exchanger 19 and defrosting room 2 come out;
With the condenser heat of cold-producing medium in the refrigerating plant the thermal source that thaws, adopt come the return air from freezing room of showering spray type condenser 13 warming and humidifyings after gas heat-exchanger 19 heat exchange as the circulating air that thaws as food; Electric heater 15 is between gas heat-exchanger 19 and the showering spray type condenser 13, as circulating air heating servicing unit;
The energy saving composite air-conditioning system that is used for food freezing and thawing apparatus is with the thaw thermal source of the condenser heat in the refrigerating plant as food.This system is made of three circulations, solution dehumidification circulation, refrigeration working medium circulation and freezing room, defrosting room air circulation system.Food freeze and the flow process of thawing is to enter the air that freezes the storehouse to fall by the dehumidifying of solar energy regeneration type solution dehumidification system earlier that to handle temperature by first via evaporimeter again behind the enthalpy be-25～-18 ℃, relative humidity is cooled off food for 〉=85% Cryogenic air, the air that comes out from freezing room is after the return air heat exchange of next Lu Xianjing gas heat-exchanger of fan action and defrosting room, behind showering spray type condenser warming and humidifying, again the further conditioning of No. the second evaporimeter in defrosting room to the parameter of 8～15 ℃ of relative humidity 〉=85% of temperature to the food processing of thawing, electric heater behind the heat exchanger is as the atmosphere temperature rising servicing unit, the back is mixed under the effect of blower fan from the return air defrosting room return air direct and by heat exchanger that freezing room comes out in another road, enters and sends into freezing room realization whole circulation after solution moisture removing device is handled again.
Claims (2)
1. energy saving composite aircondition that is used for food freezing and thawing apparatus is characterized in that this device comprises and is used to freeze with the refrigeration working medium cyclic part of air circulation part, cooling and the heating freezing room and the defrosting room circulating air of defrosting food, is used for the concentrated solution regenerating section that the enthalpy circulating air falls in the dehumidifying of freezing room circulating air before cooling processing; Wherein, be used for freezing the air circulation part with defrosting food, the air input of the air output termination evaporimeter (9) of solution moisture removing device (5) is processed into the low temperature saturated air food is carried out freezing processing; The air output of freezing room (1) connects showering spray type condenser (13) by second blower fan (17), gas heat-exchanger (19), the 4th volume damper (20), electric heater (15) in proper order, another air output of gas heat-exchanger (19) connects solution moisture removing device (5) by first blower fan (10), realizes whole air circulation;
In the refrigeration working medium cyclic part, the refrigeration working medium output of showering spray type condenser (13) connects first evaporimeter (9) by first refrigerant expansion valve (8), the output of first evaporimeter (9) connects the refrigeration working medium input of showering spray type condenser (13) by refrigeration compressor (14), realizes whole refrigeration working medium circulation;
In the dehumidification solution regenerating section, the solution output of solution moisture removing device (5) connects the solution input of solar thermal collector (4) by solution circulation pump (6), the input of the solution output termination solution regenerator (3) of solar thermal collector (4), the solution input of the output termination solution moisture removing device (5) of solution regenerator (3) is realized the circulation of whole dehumidification solution.
2. according to the described energy saving composite aircondition that is used for food freezing and thawing apparatus of claim 1, it is characterized in that electric heater (15) is between gas heat-exchanger (19) and the showering spray type condenser (13), as circulating air heating servicing unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206481089U CN201986652U (en) | 2010-12-09 | 2010-12-09 | Energy-saving combined air conditioning device for food freezing and unfreezing device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206481089U CN201986652U (en) | 2010-12-09 | 2010-12-09 | Energy-saving combined air conditioning device for food freezing and unfreezing device |
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| CN201986652U true CN201986652U (en) | 2011-09-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010206481089U Expired - Lifetime CN201986652U (en) | 2010-12-09 | 2010-12-09 | Energy-saving combined air conditioning device for food freezing and unfreezing device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102038272A (en) * | 2010-12-09 | 2011-05-04 | 东南大学 | Energy-saving compound air-conditioning device for food freezing and thawing device |
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- 2010-12-09 CN CN2010206481089U patent/CN201986652U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102038272A (en) * | 2010-12-09 | 2011-05-04 | 东南大学 | Energy-saving compound air-conditioning device for food freezing and thawing device |
| CN102038272B (en) * | 2010-12-09 | 2012-09-19 | 东南大学 | Energy-saving compound air-conditioning device for food freezing and thawing device |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20110928 Effective date of abandoning: 20120919 |