CN107606843B - A kind of Novel frost-free refrigerator-freezer refrigerating plant with solution dehumidification - Google Patents

Abstract

The invention discloses a novel frost-free freezer refrigeration device with solution dehumidification, comprising a freezer, the two sides of the freezer are respectively provided with a left chamber and a right chamber, and it is characterized in that: a compressor is arranged in the freezer, The compressor is connected with an R1 pipeline, the condenser and the R2 pipeline are arranged in the left compartment, and the cooler is arranged in the right compartment. The R1 pipeline, the R2 pipeline are connected, the condenser, the R3 pipeline, the R4 pipeline, and the capillary flow tube 1. Air cooler, capillary flow pipe 2. Cooler and compressor are connected in sequence to form a refrigeration cycle pipeline; the beneficial effect of the present invention is that a condenser is arranged in the built-in space of the freezer, the condenser pipe is ribbed, and the circulation fan The inhaled cold air first removes moisture through the heat exchange surface on one side, and then enters the air cooler to ensure that the surface of the air cooler does not frost. The device has the advantages of saving energy and improving the air quality of the freezer space, and is suitable for popularization and use.

Description

A new type of frost-free freezer refrigeration device with solution dehumidification

technical field

The invention relates to a novel frost-free freezer refrigeration device with solution dehumidification, belonging to the technical field of refrigeration.

Background technique

The temperature in the freezer is low, and most of the water vapor exists in the form of liquid. These liquids are attached to the inner wall of the freezer. When the temperature reaches below zero, ice crystals will form on the inner wall. After a long day, thick hoarfrost will form in the freezer. . Especially when we store aquatic products, the speed of frosting will be accelerated. Many users are very distressed by the phenomenon of frosting in the freezer, but they cannot close the freezer, because the food will deteriorate, so they have to let it thicken and thicken. Failure to recognize the dangers of frosting in the freezer has inadvertently brought great harm to the freezer and our lives. 1. According to the measurement, when the thickness of frost in the freezer is greater than 10 mm, the heat transfer efficiency will drop by 30%, which will lead to a drop in the cooling rate of the freezer, a longer working time of the compressor, and an increase in power consumption. 2. The temperature of quick-frozen food should drop rapidly to between zero and minus five degrees within 30 minutes, which can better preserve freshness and keep its original delicious taste, such as fish and shrimp. Frosting in the freezer will cause the cooling speed to drop, making it difficult to reduce the temperature to zero to minus five degrees within 30 minutes, thus affecting the delicacy of food. 3. The temperature in the freezer is very low, but it only inhibits the reproduction speed of bacteria, but cannot kill the bacteria, and the frost in the freezer will increase the humidity in the freezer, which provides the best conditions for the survival of bacteria. Imagine preserving our food in a space full of germs.

It is urgent to defrost the freezer. After years of experience accumulation, we have done targeted research on defrosting and summarized a few points. 1. Natural defrosting method, finish eating the food in the freezer, then unplug the power, open the door of the freezer, and let the ice melt naturally. The advantage of this is that it will not damage the freezer, and the inner wall of the freezer will not be damaged due to sudden thermal expansion and contraction, but the disadvantage is that it takes a long time. 2. Heating and defrosting method, unplug the power of the freezer, put other heat sources in the freezer to melt the ice, the advantage is that it takes a short time, and the disadvantage is that it needs other energy sources. 3. To pull out the freezer with tools, it is best to use a plastic shovel to clean the ice in the freezer. The advantage is that it saves time, but the disadvantage is that it is laborious, and it is difficult to control the force. A little carelessness may damage the inner wall of the freezer. cause property damage.

For example, the publication number CN102226608A discloses that the present invention provides a defrosting system of an air conditioner, including: a defrosting judging module, which outputs the first defrosting instruction for defrosting the bottom of the outdoor unit of the air conditioner, or outputs the first defrosting command for the outdoor unit of the air conditioner. The second defrosting instruction for defrosting the whole of the outdoor unit; the first defrosting control module, in response to the first defrosting instruction, controls the air conditioner to enter the first defrosting operation mode for defrosting the bottom of the outdoor unit; and the second The second defrosting control module, in response to the second defrosting command, controls the air conditioner to enter the second defrosting operation mode for defrosting the entire outdoor unit. On the other hand, the present invention also provides an air conditioner with the above-mentioned defrosting system. In addition, the invention also provides a defrosting method for the air conditioner. Compared with the prior art, the present invention uses the temperature of the refrigerant itself to defrost the bottom of the outdoor unit by adjusting the opening of the electronic expansion valve of the air conditioner in the heating operation mode of the air conditioner, thereby effectively improving the defrosting effect, and further Improve the heating performance of the air conditioner. .

However, the existing frost-free freezers all use the air-cooled evaporator to send cold air to the freezing space of the freezer. The frosting evaporator tube cannot be seen when the door is opened, but in fact, the surface of the air-cooled evaporator built in the invisible inner layer is still frosted. It’s just that you can’t see it, and it’s just that the timing electric heating is set to defrost. The present invention overcomes the deficiencies in the prior art and proposes a freezer that does not really frost.

Contents of the invention

In view of the above-mentioned deficiencies, the technical problem to be solved by the present invention is to provide a method of utilizing the adsorption effect of solid dry adsorbent on water vapor, and then enter the cooling fan for cooling, and blow cold air into the freezer chamber. The specific method is to install a condenser in the built-in space of the freezer. The condenser pipe is ribbed. The cold air sucked by the circulating fan first passes through the heat exchange surface on one side to remove moisture, and then enters the air cooler to ensure that the surface of the air cooler does not frost. The device has the advantages of saving energy and improving the air quality of the freezer space.

The concrete technical scheme that the present invention mentions is as follows:

A new type of frost-free freezer refrigeration device with solution dehumidification, including a freezer, the two sides of the freezer are respectively provided with a left compartment and a right compartment, and the feature is that a compressor is arranged in the freezer, and the compressor R1 pipeline is connected, the condenser and R2 pipeline are arranged in the left compartment, and the cooler is arranged in the right compartment. The R1 pipeline, R2 pipeline connection, condenser, R3 pipeline, R4 pipeline, capillary flow pipe 1, and air cooler 1. The capillary flow tube 2. The cooler and the compressor are connected in sequence to form a refrigeration cycle pipeline;

The top of the left compartment is provided with a spray device 1, and the top of the right compartment is provided with a spray device 2. The bottom of the left compartment is connected with a concentrated solution tank, and the bottom of the right compartment is connected with a diluted solution tank. The tank, S1 pipeline, S2 pipeline, cooling fan and spraying device are connected in sequence, wherein: a concentrated solution pump is installed on the S1 pipeline; the diluted solution tank, S3 pipeline, and S4 pipeline are connected in sequence, wherein: on the S3 pipeline A diluted solution pump is installed, and the S4 pipeline is connected to the left compartment;

The left compartment is also provided with a circulation pipeline, one end of the circulation pipeline is connected to the spray device, and the other end is connected to the bottom of the left compartment, and a circulation pump is also installed on the circulation pipeline.

Preferably, ribs are installed in both the left compartment and the right compartment.

Preferably, the bottom of the left compartment is provided with an air inlet A, and the top is provided with an exhaust fan B; the bottom of the right compartment is provided with an air inlet C, and the top is provided with an air outlet D.

The beneficial effect of the present invention is that a condenser is installed in the built-in space of the freezer, and the condensing pipe is ribbed, and the cold air inhaled by the circulation fan first passes through the heat exchange surface on one side to remove moisture, and then enters the air cooler to ensure that the surface of the air cooler does not frost . The device has the advantages of saving energy and improving the air quality of the freezer space, and is suitable for popularization and use.

Description of drawings

The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

Fig. 1 is a structural schematic diagram of a novel frost-free freezer refrigeration device with solution dehumidification of the present invention.

Detailed ways

In order to make the object, technical solution and advantages of the present invention more clear, the present invention will be further described in detail below in conjunction with the examples. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

Example 1

As shown in the figure, a new type of frost-free freezer refrigeration device with solution dehumidification includes a freezer 100, and the two sides of the freezer 100 are respectively provided with a left compartment 101 and a right compartment 102. It is characterized in that: the compressor 1 is set in the freezer 100, the compressor 1 is connected with the R1 pipeline, the condenser 9 and the R2 pipeline are arranged in the left compartment 101, the cooler 5 is arranged in the right compartment 102, the R1 pipeline, the R2 pipeline, the condenser Device 9, R3 pipeline, R4 pipeline, capillary flow pipe 1 6, air cooler 7, capillary flow pipe 2 8, cooler 5, and compressor 1 are connected in sequence to form a refrigeration cycle pipeline;

The top of the left compartment 101 is provided with a spray device 1 12, and the top of the right compartment 102 is provided with a spray device 2 13. The bottom of the left compartment 101 is connected with a concentrated solution tank 2, and the bottom of the right compartment 102 is connected with a diluent Solution tank 3, strong solution tank 2, S1 pipeline, S2 pipeline, air cooler 7 and spraying device two 13 are connected sequentially, wherein: concentrated solution pump 11 is installed on S1 pipeline; Described diluted solution tank 3, S3 pipeline, The S4 pipeline is connected in sequence, wherein: the S3 pipeline is equipped with a dilution solution pump 10, and the S4 pipeline is connected to the left chamber 101;

The left chamber 101 is also provided with a circulation pipeline, one end of the circulation pipeline is connected to the spray device 12, and the other end is connected to the inner bottom of the left chamber 101, and a circulation pump 15 is installed on the circulation pipeline. Ribs 4 are installed in the left chamber 101 and the right chamber 102 . The bottom of the left chamber 101 is provided with an air inlet A, and the top is provided with an exhaust fan B14; the bottom of the right chamber 102 is provided with an air inlet C, and the top is provided with an air outlet D.

The working principle of the novel frost-free freezer refrigeration device with solution dehumidification disclosed by the present invention is as follows: a condenser 9 is arranged on the left side of the freezer 100, and the solution is regenerated with condensed waste heat to recover the moisture absorption capacity of the solution; the right side is used for air dehumidification The cooler 5 is responsible for the dehumidification before the air cooling of the freezer, while the air inlet A and the exhaust fan B are respectively arranged on the left side up and down, and are responsible for communicating with the indoor air.

During normal operation, the compressor 1 outputs high-temperature and high-pressure Freon refrigerant vapor, which enters the R2 pipe from the R1 pipe and enters the condenser 9. The upper part of the condenser 9 is equipped with a spray device 12, and the solution is continuously sprayed by a circulating pump 15. The residual heat of the condenser 9 is continuously heated, and at the same time, the exhaust fan B continuously extracts air, so that the water vapor evaporated in the solution is continuously extracted, and the regenerated solution flows into the concentrated solution tank 2, and the concentrated solution enters the S2 pipeline through the S1 pipeline. The air cooler 7 is cooled, and then through the spraying device 2 13, the liquid droplets are sprayed on the surface of the cooler 5, and the moisture in the air is absorbed simultaneously. The air enters from the air inlet 2C in the freezer, and after the moisture is absorbed It is discharged through the air outlet D, and the concentration of the absorbed water solution becomes dilute, and flows into the dilute solution tank 3, and then is pumped away by the dilute solution pump 10 again as required for repeated use. The solutions proposed in this embodiment are all lithium chloride solutions.

The refrigeration cycle is completed in this way: Compressor 1 compresses the Freon refrigerant into high-temperature and high-pressure hot steam, and the steam enters the R2 pipeline from the R1 pipeline and condenses in the condenser 9, and the refrigerant condenses into a liquid state, and after passing through the R3 pipeline and the R4 pipeline, refrigeration After passing through capillary flow pipe one 6, the liquid enters air cooler 7 for evaporative cooling, and after being throttled again by capillary flow pipe two 8, enters cooler 5 for evaporative cooling, and then flows into the compressor.

Air circulation in the freezer: the air cooler sucks air with a relatively high temperature from the freezer, and it is cooled twice, the first time it is cooled in the cooler 5, the second time it is cooled by the air cooler 7, and the second time it is cooled on the surface of the cooling pipe. Frosting phenomenon can not take place, the first time is because the freezing point solution exists on the surface of the cooler 5, and the second time is that the air removes moisture to reduce the dew point.

Although the illustrative specific embodiments of the present invention have been described above, so that those skilled in the art can understand the present invention, the present invention is not limited to the scope of the specific embodiments. For those of ordinary skill in the art, as long as each As long as the changes are within the spirit and scope of the present invention defined and determined by the appended claims, all inventions and creations utilizing the concept of the present invention are included in the protection list.

Claims (3)

1. A novel frost-free freezer refrigerating device with solution dehumidification, comprising a freezer (100), the two sides of the freezer (100) are respectively provided with a left compartment (101) and a right compartment (102), which It is characterized in that: the compressor (1) is arranged in the freezer (100), the compressor (1) is connected with the R1 pipeline, the condenser (9) and the R2 pipeline are arranged in the left compartment (101), and the cooler (5 ) is arranged in the right warehouse (102), the R1 pipeline, the R2 pipeline connection, the condenser (9), the R3 pipeline, the R4 pipeline, the capillary detail flow pipe one (6), the air cooler (7), the capillary detail flow pipe Two (8), cooler (5), and compressor (1) are connected in sequence to form a refrigeration cycle pipeline; The top of the left chamber (101) is provided with a spray device one (12), the top of the right chamber (102) is provided with a spray device two (13), and the bottom of the left chamber (101) is connected with a concentrated solution The bottom of the tank (2), the right warehouse (102) is connected with a dilute solution tank (3), and the concentrated solution tank (2), S1 pipeline, S2 pipeline, air cooler 7 and spraying device two (13) are connected in sequence, Wherein: the concentrated solution pump (11) is installed on the S1 pipeline; the diluted solution tank (3), the S3 pipeline, and the S4 pipeline are connected in sequence, wherein: the diluted solution pump (10) is installed on the S3 pipeline, and the S4 pipeline is connected Inside the left compartment (101); The left warehouse (101) is also provided with a circulation pipeline, one end of the circulation pipeline is connected to the spray device one (12), and the other end is connected to the inner bottom of the left warehouse (101). There is a circulation pump (15). 2. The novel frost-free freezer refrigeration device with solution dehumidification according to claim 1, characterized in that: ribs (4) are installed in the left compartment (101) and the right compartment (102). 3. The novel frost-free freezer refrigeration device with solution dehumidification according to claim 1, characterized in that: the bottom of the left compartment (101) is provided with an air inlet A, and the top is provided with an exhaust fan B (14) ; The bottom of the right chamber (102) is provided with an air inlet C, and the top is provided with an air outlet D.