KR20240028017A - Hybrid drying system and hybrid drying method using this - Google Patents

Abstract

The hybrid drying system of the disclosed invention includes a drying room forming a drying space in which target crops are placed, a cooling room forming a cooling space partitioned from the drying space, and a condensation chamber forming a condensation space partitioned from the drying space and the cooling space. A refrigerant circulation module that sequentially repeats the compression function of the refrigerant through the compressor, the condensation function of the refrigerant through the condenser, the expansion function of the refrigerant through the expansion valve, and the evaporation function of the refrigerant through the evaporator, a drying space, a cooling space, and a condensation space. air in the condensation space from the control passage interconnecting the air blowing module and the control passage including at least one of a configuration for circulating air between the cooling space and the drying space and a configuration for circulating air between the condensation space and the drying space. Includes a diversion damper that selects whether or not is delivered to the drying space.

Description

Hybrid drying system and hybrid drying method using it {HYBRID DRYING SYSTEM AND HYBRID DRYING METHOD USING THIS}

The present invention relates to a hybrid drying system for easily performing the drying and dehumidifying functions inside a drying room by using at least one of the cold passing through the evaporator and the hot air passing through the condenser according to the circulation cycle of the refrigerant, and a hybrid drying method using the same. It's about.

Typically, a low temperature warehouse is a structure built for the safe storage of various agricultural and livestock products, fish and shellfish, food, medicine, alcoholic beverages, plant seeds, etc., and is manufactured in various forms depending on the material and purpose to maintain freshness. It has a sufficient heat dissipation structure to do so, or is equipped with a condenser to freeze frozen foods.

In addition, when farms harvest crops such as peppers or jujubes, they are thoroughly dried in the sun to prevent rot and to store them safely for a long time. To this end, greenhouses and dryers using hot air are used to increase the drying efficiency of crops and increase production.

Here, if we look briefly at a dryer using hot air according to the prior art, it consists of a drying furnace equipped with a drying room, a hot air blower that generates hot air, and a tray for storing crops. Dry the crops stored in.

However, since the dryer of the prior art forcibly supplies hot air to crops using a hot air blower, it had the drawback of losing or destroying nutrients beneficial to the human body along with evaporation of moisture. In the case of red peppers, if the drying temperature exceeds 60 degrees Celsius, the red peppers ripen, and nutrients such as vitamins are easily destroyed and the taste and texture are severely damaged. In addition, not only does it take a long time to dry crops, but the consumption of electric energy or fuel is relatively increased, so there is a problem that energy consumption increases compared to drying efficiency, it is uneconomical, and drying efficiency actually decreases.

In the end, there were limitations in using low-temperature storage and drying simultaneously in one warehouse for storage and drying, and there were problems in establishing an environmentally friendly energy saving system.

Republic of Korea Patent Publication No. 10-1427352 (Title of invention: Warehouse capable of drying and low-temperature storage, announced on August 7, 2014)

The present invention was developed by solving the above problems, and is designed to easily perform the drying and dehumidifying functions inside the drying room by using at least one of the cold that has passed through the evaporator and the hot air that has passed through the condenser according to the circulation cycle of the refrigerant. The purpose is to provide a hybrid drying system and a hybrid drying method using it.

The hybrid drying system according to a preferred embodiment of the disclosed present invention includes a drying room forming a drying space in which target crops are placed; a cooling chamber forming a cooling space separated from the drying space; a condensation chamber forming a condensation space partitioned from the drying space and the cooling space; A refrigerant circulation module that sequentially repeats the compression function of the refrigerant through a compressor, the condensation function of the refrigerant through a condenser, the expansion function of the refrigerant through an expansion valve, and the evaporation function of the refrigerant through an evaporator; A control passage connecting the drying space, the cooling space, and the condensation space to each other; An evaporation blower that allows the air in the drying space to pass through the evaporator and be delivered to the cooling space while the air in the cooling space passes through the control passage to be delivered to the drying space, and the outside air of the condensation chamber is supplied to the cooling space. A blowing module including at least one of a condensation blower that allows air from the condensation space to pass through the condenser and be delivered to the condensation space, while allowing air from the condensation space to pass through the control passage and be delivered to the drying space; and a switching damper that selects whether the air in the condensation space is delivered to the drying space in the control passage.

As a result, the drying and dehumidifying functions inside the drying room can be easily performed using at least one of the cold that has passed through the evaporator and the hot air that has passed through the condenser according to the circulation cycle of the refrigerant.

A hybrid drying system according to a preferred embodiment of the present invention includes a discharge passage branching from the drying space to connect the drying space to the outside of the drying room; A pressure sensor that measures the pressure in the drying space; and a discharge damper that opens and closes the discharge passage or adjusts the opening degree of the discharge passage according to the pressure measured by the pressure sensor.

As a result, expansion of the drying space, contraction of the drying space, or damage to the drying space can be prevented, and the drying space can be stably maintained.

Here, the control passage includes a first exhaust passage branching from the cooling space to form a path through which air in the cooling space moves; a second exhaust passage branching from the condensation space to connect the condensation space to the outside of the condensation chamber; a connection passage branching from the second exhaust passage to be connected to the first exhaust passage; and a return passage connected to the drying space by combining the first exhaust passage and the connection passage.

As a result, at least one of the air in the cooling space and the air in the condensation space can be delivered to the drying space.

Here, the first exhaust passage includes an exhaust heating unit that heats air discharged from the cooling space; is provided.

As a result, it is possible to heat the cooled air in the cooling space and prevent the air in the drying space from cooling in the high temperature mode or temperature increase mode.

The hybrid drying system according to a preferred embodiment of the present invention further includes a water circulation module that condenses the refrigerant compressed in the refrigerant circulation module through circulation of underground water.

As a result, underground water seepage can be utilized for drying and dehumidifying functions of target crops.

Here, the water circulation module includes a water tank in which the underground water is stored; a heat exchange module that exchanges heat with the underground water stored in the water tank and the refrigerant compressed in the refrigerant circulation module; and a water supply pump that pumps underground water stored in the water tank to the heat exchange module.

As a result, the compressed refrigerant can be condensed using underground water, and the underground water can be heated.

Here, the water circulation module includes a ball top valve that selects whether to supply the underground water to the water tank; A discharge valve that selects whether to discharge the underground water from the water tank; A drying control module that regulates the temperature of the drying space by circulating underground water stored in the water tank; and a groundwater pump that pumps the underground water into the water tank. Includes at least one more of:

As a result, the water level of the water tank can be adjusted, the underground water stored in the water tank can be replaced, and the heated or cooled underground water can be used to heat the drying space, cool the drying space, or use the heated underground water to cool the drying space. It can be used for temperature control.

The hybrid drying method according to a preferred embodiment of the present invention is a hybrid drying method using a hybrid drying system according to a preferred embodiment of the present invention, and includes a compression function of the refrigerant through a compressor, a condensation function of the refrigerant through a condenser, and an expansion valve. A heat medium circulation step of sequentially repeating the expansion function of the refrigerant through and the evaporation function of the refrigerant through an evaporator; A mode determination step of determining an operation mode according to the temperature conditions of the drying space; A mode executing step of delivering at least one of the air in the cooling space and the air in the condensation space to the drying space according to the decision in the mode determining step, wherein the mode executing step includes: A low-temperature mode step of allowing air from the cooling space to pass through the evaporator and into the cooling space, and allowing air from the cooling space to pass through the control passage and be delivered to the drying space; A high temperature mode step of allowing external air from the condensation chamber to pass through the condenser and be delivered to the condensation space, and allowing air from the condensation space to pass through the control passage to be delivered to the drying space; And the air contained in the cooling space passing through the evaporator is heated while passing through the control passage and is delivered to the drying space, and the air passing through the condenser and contained in the condensation space passes through the control passage to the drying space. A temperature increase mode step to be transmitted to; Includes any one of

As a result, the drying and dehumidifying functions inside the drying room can be easily performed using at least one of the cold that has passed through the evaporator and the hot air that has passed through the condenser according to the circulation cycle of the refrigerant.

Here, the low-temperature mode step is a low-temperature evaporation blowing step in which the air in the drying space passes through the evaporator and is delivered to the cooling space, and the air in the cooling space passes through the control passage and is delivered to the drying space. ; It includes a low-temperature connection blocking step of blocking the air in the condensation space from passing through the control passage and being delivered to the drying space.

As a result, the low temperature mode can be implemented to easily cool the drying space in response to the temperature of the air in the cooling space.

In addition, the low-temperature mode step includes a low-temperature discharge blocking step of blocking the discharge passage connecting the drying space and the outside of the drying room; A heating stop step of allowing the air in the cooling space to pass through the control passage and be delivered to the drying space; and a low-temperature condensation blowing step of discharging the air in the condensation space to the outside of the condensation chamber. Includes at least one more of:

As a result, it is possible to prevent cold air from the drying space from leaking to the outside of the drying room through the low-temperature exhaust difference step, and the air from the cooling space that has become cold through the heating stop step can be directly delivered to the drying space, and the low-temperature condensation blowing step can be performed. This can contribute to preventing deterioration of condenser performance and stabilizing the refrigerant circulation cycle.

Here, the high temperature mode step includes a high temperature exhaust blocking step of connecting the condensation space and the drying space; and a high-temperature condensation blowing step of allowing external air from the condensation chamber to pass through the condenser and be delivered to the condensation space, and allowing air from the condensation space to pass through the control passage to be delivered to the drying space.

As a result, the high temperature mode can be implemented to easily heat the drying space in response to the temperature of the air in the condensation space.

In addition, the high temperature mode step further includes a high temperature discharge blocking step of blocking the discharge passage connecting the drying space and the outside of the drying room.

As a result, it is possible to prevent heat from the drying space from leaking to the outside of the drying room.

For example, the high temperature mode step further includes a high temperature evaporation blowing step of allowing air in the cooling space to stagnate in the cooling space.

As a result, cooling of the air in the condensation space passing through the control passage by the cooled air in the cooling space can be minimized.

As another example, the high temperature mode step includes a high temperature evaporation blowing step of allowing air contained in the cooling space through the evaporator to pass through the control passage and be delivered to the drying space; and a high-temperature heating step of heating the air in the cooling space passing through the control passage in response to the temperature of the air in the condensation space delivered to the drying space.

As a result, the drying space can be heated more quickly and the temperature conditions of the drying space according to the high temperature mode can be quickly realized.

Here, the temperature increase mode step includes a temperature increase exhaust blocking step of connecting the condensation space and the drying space; The air contained in the cooling space passing through the evaporator is heated while passing through the control passage and is delivered to the drying space. The air passing through the condenser and contained in the condensation space passes through the control passage to be delivered to the drying space. A temperature-elevating condensation blowing step to ensure transfer; A temperature-raising evaporation blowing step of allowing the air contained in the cooling space through the evaporator to pass through the control passage and be delivered to the drying space; and a temperature raising heating step of heating the air in the cooling space passing through the control passage to be higher than the temperature of the air in the condensation space delivered to the drying space and below a preset heating temperature.

As a result, the temperature increase mode can be implemented to easily heat the drying space in response to the preset heating temperature.

In addition, the temperature increase mode step further includes a temperature increase discharge blocking step of blocking the discharge passage connecting the drying space and the outside of the drying room.

As a result, it is possible to prevent heat from the drying space from leaking to the outside of the drying room.

Here, the heat medium circulation step sequentially repeats the compression function of the refrigerant through a compressor, the condensation function of the refrigerant through a condenser, the expansion function of the refrigerant through an expansion valve, and the evaporation function of the refrigerant through an evaporator. Refrigerant circulation step; A water circulation step of condensing the refrigerant compressed in the refrigerant circulation step through circulation of underground water; A groundwater circulation step of supplying underground spring water to a water tank or discharging underground spring water from the water tank; and a control circulation step of cooling the drying space, heating the drying space, or controlling the temperature of the drying space through circulation of underground water. Includes at least a refrigerant circulation step.

As a result, the circulation cycle of the refrigerant can be stabilized through the refrigerant circulation stage, the underground water stored in the water tank can be heated through the water circulation stage, and the water level of the water tank can be adjusted through the groundwater circulation stage. It is possible to facilitate the replacement of gushing water, and to use underground gushing water through the control circulation stage to cool the drying space, heat the drying space, or smoothly control the temperature of the drying space.

The hybrid drying method according to a preferred embodiment of the present invention includes a pressure measuring step of measuring the drying pressure in the drying space; A pressure comparison step of comparing the drying pressure of the drying space with a preset reference pressure; And as a result of the pressure comparison step, when the drying pressure of the drying space is higher than the preset reference pressure, the discharge passage branching from the drying space is opened to connect the drying space to the outside of the drying room, or the discharge passage is opened. It further includes a discharge opening step for controlling.

As a result, expansion of the drying space, contraction of the drying space, or damage to the drying space can be prevented, and the drying space can be stably maintained.

According to the present invention, a hybrid drying system for easily performing the drying function and dehumidifying function inside the drying room using at least one of the cold passing through the evaporator and the hot air passing through the condenser according to the circulation cycle of the refrigerant, and hybrid drying using the same. method can be implemented.

In addition, the loss or destruction of nutrients beneficial to the human body can be minimized during the drying process, while improving the dehumidification effect of the drying room and improving drying efficiency and energy efficiency compared to drying time.

In addition, for storage and drying of target crops, low-temperature storage and drying can be used simultaneously in one drying room, and an eco-friendly energy saving system can be established.

Figure 1 is a diagram showing a hybrid drying system according to an embodiment of the present invention.
Figure 2 is a block diagram schematically showing the coupling relationship of controllers in a hybrid drying system according to an embodiment of the present invention.
Figure 3 is a flowchart showing a hybrid drying method according to an embodiment of the present invention.
Figure 4 is a diagram showing a hybrid drying system according to another embodiment of the present invention.
Figure 5 is a block diagram schematically showing the coupling relationship of controllers in a hybrid drying system according to another embodiment of the present invention.

The above objects, other objects, features and advantages of the present invention can be easily understood through the following preferred embodiments related to the attached drawings. However, the present invention is not limited to the embodiments described herein and may be embodied in other forms. Rather, the embodiments introduced herein are provided so that the disclosure will be thorough and complete, and so that the spirit of the invention can be fully conveyed to those skilled in the art.

In this specification, when an element is referred to as being on another element, it means that it may be formed directly on the other element or that a third element may be interposed between them. Additionally, in the drawings, the thickness of components may be exaggerated for effective explanation of technical content.

When terms such as first, second, etc. are used in this specification to describe components, these components should not be limited by these terms. These terms are merely used to distinguish one component from another. Embodiments described and illustrated herein also include complementary embodiments thereof.

Additionally, when a first element (or component) is referred to as being operated or executed on (ON) a second element (or component), the first element (or component) means that the second element (or component) is ON. It should be understood that it is operated or executed in an environment in which it is operated or executed, or that the second element (or component) is operated or executed through direct or indirect interaction.

If any element, component, device or system is said to contain a component consisting of a program or software, even if explicitly stated, that element, component, device or system refers to the hardware necessary for the execution or operation of that program or software. It should be understood to include (e.g., memory, CPU, etc.) or other programs or software (e.g., drivers necessary to run an operating system or hardware, etc.).

In addition, unless specifically stated in the implementation of an element (or component), it should be understood that the element (or component) may be implemented in any form of software, hardware, or software and hardware.

Additionally, the terms used in this specification are for describing embodiments and are not intended to limit the present invention. In this specification, singular forms also include plural forms unless specifically stated in the phrase. As used in the specification, 'comprises' and/or 'comprising' does not exclude the presence or addition of one or more other elements.

Referring to Figures 1 and 2, the hybrid drying system according to an embodiment of the present invention uses at least one of cold air passing through the evaporator 54 and hot air passing through the condenser 52 according to the circulation cycle of the refrigerant. This is to easily perform the drying and dehumidifying functions inside the drying room (10), including a drying room (10), a cooling room (20), a condensation room (30), a refrigerant circulation module, a control passage, and a blowing module. And it may include a transition damper (91).

The drying room 10 forms a drying space 11 where the target crop D is placed. The drying room 10 is equipped with a drying rack 12 on which the target crop D is placed. The drying rack 12 is formed in multiple stages as a plurality of drying racks 12 are spaced apart from each other along the height direction of the drying room 10.

The drying room 10 may be provided with a discharge passage 13 branching from the drying space 11 to connect the drying space 11 and the outside of the drying room 10.

The cooling chamber 20 forms a cooling space 21 divided from the drying space 11.

The condensation chamber 30 forms a condensation space 31 partitioned from the drying space 11 and the cooling space 21.

The refrigerant circulation module combines the compressor 51 function of the refrigerant through the compressor 51, the condenser 52 function of the refrigerant through the condenser 52, the expansion function of the refrigerant through the expansion valve 53, and the evaporator 54. The evaporator 54 function of the refrigerant is sequentially repeated.

The refrigerant circulation module includes a compressor 51 in which the refrigerant is compressed, a condenser 52 in which the compressed refrigerant is condensed, an expansion valve 53 in which the condensed refrigerant expands, and an evaporator 54 in which the expanded refrigerant evaporates. can do. The refrigerant circulation module connects the compressor 51 and the condenser 52 to form a compression line 511 that forms the refrigerant's movement path, and the condenser 52 and the expansion valve 53 to form the refrigerant's movement path. An expansion line 531 connects the line 521, the expansion valve 53, and the evaporator 54 to form a movement path for the refrigerant, and connects the evaporator 54 and the compressor 51 to form a movement path for the refrigerant. It may further include an evaporation line 541.

The refrigerant circulation module may further include a liquid separator 55 that separates the liquid refrigerant from the refrigerant that has passed through the evaporator 54. At this time, the evaporation line 541 connects the evaporator 54 and the liquid separator 55 to form a movement path for the refrigerant. The refrigerant circulation module may further include a return line 551 that connects the liquid separator 55 and the compressor 51 to form a movement path for the refrigerant.

The refrigerant circulation module may further include a condensate receiver 56 that accommodates moisture condensed as the air in the drying space 11 passes through the evaporator 54. Moisture contained in the condensate receiver 56 can be discharged to the outside of the drying chamber 10 or the cooling chamber 20 to improve the dehumidifying function of the drying space 11.

Since the compressor 51 is provided in the condensation space 31, the air in the condensation space 31 can be heated with the heat generated according to the operation of the compressor 51. Since the condenser 52 is placed at the border of the condensation chamber 30, the outside air of the condensation chamber 30 passes through the condenser 52 according to the operation of the condensation blower 72, thereby forming a condenser in the condensation space 31. 52) can accommodate heated air. Since the expansion valve 53 is provided in the cooling chamber 20, it does not affect the cooled air in the cooling space 21. Since the evaporator 54 is disposed at the boundary between the drying chamber 10 and the cooling chamber 20, the air in the drying space 11 passes through the evaporator 54 according to the operation of the evaporation blower 71, thereby forming the cooling space 21. ) can accommodate air cooled by the evaporator 54. Since the liquid separator 55 is provided in the cooling chamber 20, it is prevented from affecting the cooled air in the cooling space 21.

The control passage connects the drying space (11), the cooling space (21), and the condensation space (31) to each other.

The control passage connects the first exhaust passage 41, which branches off from the cooling space 21, to form a path through which the air in the cooling space 21 moves, and the condensation space 31 and the outside of the condensation chamber 30. A second exhaust passage 42 branching from the condensation space 31, a connection passage 45 branching from the second exhaust passage 42 to be connected to the first exhaust passage 41, and a first exhaust passage 41 ) and the connection passage 45 may be combined to include a return passage 43 connected to the drying space 11. The control passage is provided in the drying space (11) and further includes a return supply unit (44) that disperses the air discharged from the return passage (43), so that the air discharged from the return passage (43) is supplied to the drying space (11). Distribute evenly and ensure that air is delivered evenly to the target crop (D).

Here, since the first exhaust passage 41 is provided with an exhaust heating unit 81 that heats the air discharged from the cooling space 21, the air in the drying space 11 is heated to operate the high temperature mode or temperature rise mode described later. Make it easy to implement.

The blowing module may include at least one of a configuration for circulating air between the cooling space 21 and the drying space 11 and a configuration for circulating air between the condensation space 31 and the drying space 11. . In more detail, the blowing module may include at least one of an evaporation blower 71 and a condensation blower 72. The evaporation blower 71 allows the air in the drying space 11 to pass through the evaporator 54 and be delivered to the cooling space 21, while the air in the cooling space 21 passes through the control passage to the drying space 11. Make sure it is delivered. In one embodiment of the present invention, the evaporation blower 71 is shown as being provided at the entrance of the first exhaust passage 41, but it is not limited to this and its location can be changed. The condensation blower 72 allows the external air of the condensation chamber 30 to pass through the condenser 52 and be delivered to the condensation space 31, while the air in the condensation space 31 passes through the control passage to the drying space 11. Ensure that it is delivered to . In one embodiment of the present invention, the condensation blower 72 is shown as being provided at the entrance of the second exhaust passage 42, but it is not limited to this and its location can be changed.

The switching damper 91 selects whether the air in the condensation space 31 is delivered to the drying space 11 in the control passage. The switching damper 91 allows the air in the condensation space 31 to be discharged to the outside of the condensation chamber 30 when the connection passage 45 is closed. The switching damper 91 allows the air in the condensation space 31 to be delivered to the drying space 11 when the outlet of the second exhaust passage 42 is closed. Since the switching damper 91 is provided at a portion where the second exhaust passage 42 and the connection passage 45 are connected, the outlet of the connection passage 45 or the second exhaust passage 42 can be closed with a simple operation.

The hybrid drying system according to an embodiment of the present invention includes a pressure sensor (P) that measures the pressure of the drying space (11), and a discharge passage (13) that is opened or closed according to the pressure measured by the pressure sensor (P). It may further include a discharge damper 92 that adjusts the opening degree of (13). The discharge damper 92 closes the discharge passage 13 when the drying pressure of the drying space 11 measured by the pressure sensor P is less than the preset reference pressure, so that the drying space 11 is formed through the discharge passage 13. ) can prevent air from being discharged, and maintain the temperature of the drying space (11). The discharge damper 92 opens the discharge passage 13 or adjusts the opening degree of the discharge passage 13 when the drying pressure of the drying space 11 measured by the pressure sensor P is higher than the preset reference pressure, thereby drying the discharge damper 92. It is possible to prevent expansion of the space 11 and damage to the drying room 10, and to prevent overheating of the drying space 11.

The hybrid drying system according to an embodiment of the present invention may further include a controller 100 that controls the operation of the compressor 51 of the refrigerant circulation module, the Sungpung module, and the switching damper 91. The controller 100 can additionally control the operations of the pressure sensor (P) and the discharge damper 92. The controller 100 may additionally control the operation of the exhaust heating unit 81. The controller 100 can determine the operation mode according to the temperature conditions of the drying space 11 set by the user, and control the operation of the above-mentioned components according to the determined operation mode.

Referring to FIGS. 1, 2, and 3, the hybrid drying method according to an embodiment of the present invention uses a hybrid drying system according to an embodiment of the present invention to dry the target crop (D) stored inside the drying chamber 10. ) can be dried or the dehumidification performance of the drying room 10 can be improved. The hybrid drying method according to an embodiment of the present invention may include a heat medium circulation step (S1), a mode determination step (S2), and a mode execution step.

The heat medium circulation step (S1) includes the compressor 51 function of the refrigerant through the compressor 51, the condenser 52 function of the refrigerant through the condenser 52, the expansion function of the refrigerant through the expansion valve 53, and the evaporator ( The evaporation of the refrigerant through 54) is sequentially repeated. The heat medium circulation step (S1) can be implemented through the operation of the refrigerant circulation module.

The mode determination step (S2) determines an operation mode according to the temperature conditions of the drying space (11). In the mode determination step (S2), the operation mode can be determined according to the temperature conditions of the drying space (11) set by the user according to the processing method of the target crop (D). Operation modes can be divided into low temperature mode, high temperature mode, and temperature increase mode. In the low temperature mode, the drying space 11 is cooled, in the high temperature mode, the drying space 11 is heated in response to the air in the heated condensation space 31, and in the temperature increase mode, the temperature of the air in the heated condensation space 31 is changed. The drying space 11 can be heated to a higher temperature or lower than a preset heating temperature. The mode decision step (S2) can be implemented by the operation of the controller 100.

The mode execution step delivers at least one of the air in the cooling space 21 and the air in the condensation space 31 to the drying space 11 according to the decision in the mode decision step S2. The mode execution step may include any one of a low temperature mode step, a high temperature mode step, and a temperature increase mode step.

In the low temperature mode step, the air in the drying space 11 passes through the evaporator 54 and is delivered to the cooling space 21, and the air in the cooling space 21 passes through the control passage and is delivered to the drying space 11. do.

In the low temperature mode step, the air in the drying space 11 passes through the evaporator 54 and is delivered to the cooling space 21, and the air in the cooling space 21 passes through the control passage to be delivered to the drying space 11. It may include a low-temperature evaporation blowing step (S33) and a low-temperature connection blocking step (S34) that blocks the air in the condensation space (31) from passing through the control passage to the drying space (11). The low-temperature evaporation blowing step (S33) can be implemented by the operation of the evaporation blower (71), and the low-temperature connection blocking step (S34) can be implemented by the operation of the switching damper (91).

The low-temperature mode step includes a low-temperature discharge blocking step (S31) that blocks the discharge passage 13 connecting the drying space 11 and the outside of the drying room 10, and the air in the cooling space 21 passes through the control passage as is. It may further include at least one of a heating stop step (S32) for delivering the air to the drying space (11) and a low-temperature condensation blowing step (S35) for discharging the air in the condensation space (31) to the outside of the condensation chamber (30). You can. The low-temperature exhaust blocking step (S31) can be implemented by the operation of the discharge damper 92, the heating stop step (S32) can be implemented by the operation of the exhaust heating unit 81, and the low-temperature condensation blowing step (S35) can be implemented by operating the condensation blower. It can be implemented through the operation of (72).

In the high temperature mode stage, the external air of the condensation chamber (30) passes through the condenser (52) and is delivered to the condensation space (31), and the air in the condensation space (31) passes through the control passage and is delivered to the drying space (11). Make it possible.

The high-temperature mode step includes a high-temperature exhaust blocking step (S42) that connects the condensation space 31 and the drying space 11, and external air in the condensation chamber 30 passes through the condenser 52 and is delivered to the condensation space 31. It may include a high-temperature condensation blowing step (S43) to ensure that the air in the condensation space 31 passes through the control passage and is delivered to the drying space 11. The high-temperature exhaust blocking step (S42) can be implemented by the operation of the switching damper (91), and the high-temperature condensation blowing step (S43) can be implemented by the operation of the condensation blower (72).

The high temperature mode step may further include a high temperature discharge blocking step (S41) of blocking the discharge passage 13 connecting the drying space 11 and the outside of the drying room 10. The high-temperature discharge blocking step (S41) can be implemented through the operation of the discharge damper (92).

For example, the high temperature mode step may further include a high temperature evaporation blowing step (S45) of stagnant air in the cooling space 21. The high-temperature evaporation blowing step (S45) can be implemented by the operation of the evaporation blower (71). At this time, the temperature of the drying space 11 can be adjusted by adjusting the amount of air blown into the cooling space 21 according to the operation of the evaporation blower 71.

As another example, the high temperature mode step includes a high temperature evaporation blowing step (S45) in which the air contained in the cooling space (21) passes through the evaporator (54) and passes through the control passage to the drying space (11), and the drying space (11) ) may further include a high-temperature heating step (S44) of heating the air in the cooling space (21) passing through the control passage in response to the temperature of the air in the condensation space (31) transmitted to the control passage. The high-temperature evaporation blowing step (S45) can be implemented by the operation of the evaporation blower (71), and the high-temperature heating step (S44) can be implemented by the operation of the exhaust heating unit (81). At this time, the amount of air blown into the cooling space 21 can be adjusted according to the operation of the evaporation blower 71, and the temperature of the exhaust heating unit 81 can be adjusted to control the temperature of the drying space 11.

In the temperature increase mode step, the air contained in the cooling space (21) passes through the evaporator (54) and is heated while passing through the control passage and is delivered to the drying space (11), and passes through the condenser (52) to the condensation space (31). The received air is delivered to the drying space (11) through the control passage.

The temperature increase mode step includes a temperature increase exhaust blocking step (S52) connecting the condensation space 31 and the drying space 11, and the air contained in the cooling space 21 through the evaporator 54 is heated as it passes through the control passage. A temperature raising condensation blowing step (S55) to ensure that the air contained in the condensation space (31) passes through the condenser (52) and is delivered to the drying space (11) through the control passage, and an evaporator ( 54), a temperature-raising evaporation blowing step (S54) in which the air contained in the cooling space (21) passes through the control passage and is delivered to the drying space (11), and a condensation space (31) delivered to the drying space (11). It may include a temperature raising heating step (S53) of heating the air in the cooling space 21 passing through the control passage to be higher than the temperature of the air and below the preset heating temperature. The temperature increase exhaust blocking step (S52) can be implemented by the operation of the switching damper 91, the temperature increase condensation blowing step (S55) can be implemented by the operation of the condensation blower 72, and the temperature increase evaporation blowing step (S54) can be implemented by the evaporation blower. It can be implemented by the operation of (71), and the temperature increasing heating step (S53) can be implemented by the operation of the exhaust heating unit (81). At this time, the amount of air blown into the cooling space 21 can be adjusted according to the operation of the evaporation blower 71, and the temperature of the exhaust heating unit 81 can be adjusted to control the temperature of the drying space 11.

The temperature increase mode step may further include a temperature increase discharge blocking step (S51) of blocking the discharge passage 13 connecting the drying space 11 and the outside of the drying room 10. The temperature rise discharge blocking step (S51) can be implemented through the operation of the discharge damper (92).

The hybrid drying method according to an embodiment of the present invention includes a pressure measurement step of measuring the drying pressure of the drying space 11 and a pressure comparison step (S6) of comparing the drying pressure of the drying space 11 with a preset reference pressure. And, as a result of the comparison in the pressure comparison step (S6), if the drying pressure of the drying space 11 is higher than the preset standard pressure, the discharge branched from the drying space 11 so that the drying space 11 and the outside of the drying room 10 are connected. A discharge opening step (S7) of opening the flow path 13 or adjusting the opening degree of the discharge flow path 13 may be further included. After going through the discharge opening step (S7), when the drying pressure in the drying space 11 is lowered to atmospheric pressure, the discharge damper 92 closes the discharge passage 13. If the drying pressure in the drying space 11 is less than the preset reference pressure as a result of the comparison in the pressure comparison step (S6), the discharge passage 13 is maintained in a blocked state. The pressure measurement step can be implemented by the operation of the pressure sensor (P), the pressure comparison step (S6) can be implemented by the operation of the controller 100, and the discharge opening step (S7) can be implemented by the operation of the discharge damper (92). You can.

The hybrid drying method according to an embodiment of the present invention may further include an end confirmation step (S8) for determining whether to end the operation mode.

As a result of the decision in the termination confirmation step (S8), when the corresponding operation mode is terminated, the hybrid drying system according to an embodiment of the present invention is terminated.

As a result of the decision in the end confirmation step (S8), if the corresponding operation mode is in progress, the operation of the hybrid drying system according to an embodiment of the present invention is maintained.

Referring to Figures 4 and 5, the hybrid drying system according to another embodiment of the present invention uses at least one of cold air passing through the evaporator 54 and hot air passing through the condenser 52 according to the circulation cycle of the refrigerant. This is to easily perform the drying and dehumidifying functions inside the drying room (10), including a drying room (10), a cooling room (20), a condensation room (30), a refrigerant circulation module, a control passage, and a blowing module. And it may include a transition damper (91).

The drying room 10 forms a drying space 11 where the target crop D is placed. The drying room 10 is equipped with a drying rack 12 on which the target crop D is placed. The drying rack 12 is formed in multiple stages as a plurality of drying racks 12 are spaced apart from each other along the height direction of the drying room 10.

The drying room 10 may be provided with a discharge passage 13 branching from the drying space 11 to connect the drying space 11 and the outside of the drying room 10.

The cooling chamber 20 forms a cooling space 21 separated from the drying space 11.

The condensation chamber 30 forms a condensation space 31 partitioned from the drying space 11 and the cooling space 21.

The refrigerant circulation module combines the compressor 51 function of the refrigerant through the compressor 51, the condenser 52 function of the refrigerant through the condenser 52, the expansion function of the refrigerant through the expansion valve 53, and the evaporator 54. The evaporator 54 function of the refrigerant is sequentially repeated.

The refrigerant circulation module includes a compressor 51 in which the refrigerant is compressed, a condenser 52 in which the compressed refrigerant is condensed, an expansion valve 53 in which the condensed refrigerant expands, and an evaporator 54 in which the expanded refrigerant evaporates. can do. The refrigerant circulation module connects the compressor 51 and the condenser 52 to form a compression line 511 that forms the refrigerant's movement path, and the condenser 52 and the expansion valve 53 to form the refrigerant's movement path. An expansion line 531 connects the line 521, the expansion valve 53, and the evaporator 54 to form a movement path for the refrigerant, and connects the evaporator 54 and the compressor 51 to form a movement path for the refrigerant. It may further include an evaporation line 541.

The refrigerant circulation module may further include a liquid separator 55 that separates the liquid refrigerant from the refrigerant that has passed through the evaporator 54. At this time, the evaporation line 541 connects the evaporator 54 and the liquid separator 55 to form a movement path for the refrigerant. The refrigerant circulation module may further include a return line 551 that connects the liquid separator 55 and the compressor 51 to form a movement path for the refrigerant.

The refrigerant circulation module may further include a condensate receiver 56 that accommodates moisture condensed as the air in the drying space 11 passes through the evaporator 54. Moisture contained in the condensate receiver 56 can be discharged to the outside of the drying chamber 10 or the cooling chamber 20 to improve the dehumidifying function of the drying space 11.

Since the compressor 51 is provided in the condensation space 31, the air in the condensation space 31 can be heated with the heat generated according to the operation of the compressor 51. Since the condenser 52 is placed at the border of the condensation chamber 30, the outside air of the condensation chamber 30 passes through the condenser 52 according to the operation of the condensation blower 72, thereby forming a condenser in the condensation space 31. 52) can accommodate heated air. Since the expansion valve 53 is provided in the cooling chamber 20, it does not affect the cooled air in the cooling space 21. Since the evaporator 54 is disposed at the boundary between the drying chamber 10 and the cooling chamber 20, the air in the drying space 11 passes through the evaporator 54 according to the operation of the evaporation blower 71, thereby forming the cooling space 21. ) can accommodate air cooled by the evaporator 54. Since the liquid separator 55 is provided in the cooling chamber 20, it is prevented from affecting the cooled air in the cooling space 21.

The control passage connects the drying space (11), the cooling space (21), and the condensation space (31) to each other.

The control passage connects the first exhaust passage 41, which branches off from the cooling space 21, to form a path through which the air in the cooling space 21 moves, and the condensation space 31 and the outside of the condensation chamber 30. A second exhaust passage 42 branching from the condensation space 31, a connection passage 45 branching from the second exhaust passage 42 to be connected to the first exhaust passage 41, and a first exhaust passage 41 ) and the connection passage 45 may be combined to include a return passage 43 connected to the drying space 11. The control passage is provided in the drying space (11) and further includes a return supply unit (44) that disperses the air discharged from the return passage (43), so that the air discharged from the return passage (43) is supplied to the drying space (11). Distribute evenly and ensure that air is delivered evenly to the target crop (D).

Here, since the first exhaust passage 41 is provided with an exhaust heating unit 81 that heats the air discharged from the cooling space 21, the air in the drying space 11 is heated to operate the high temperature mode or temperature rise mode described later. Make it easy to implement.

The blowing module may include at least one of a configuration for circulating air between the cooling space 21 and the drying space 11 and a configuration for circulating air between the condensation space 31 and the drying space 11. . In more detail, the blowing module may include at least one of an evaporation blower 71 and a condensation blower 72. The evaporation blower 71 allows the air in the drying space 11 to pass through the evaporator 54 and be delivered to the cooling space 21, while the air in the cooling space 21 passes through the control passage to the drying space 11. Make sure it is delivered. In another embodiment of the present invention, the evaporation blower 71 is shown as being provided at the entrance of the first exhaust passage 41, but it is not limited to this and its location can be changed. The condensation blower 72 allows the external air of the condensation chamber 30 to pass through the condenser 52 and be delivered to the condensation space 31, while the air in the condensation space 31 passes through the control passage to the drying space 11. Ensure that it is delivered to . In another embodiment of the present invention, the condensation blower 72 is shown as being provided at the entrance of the second exhaust passage 42, but it is not limited to this and its location can be changed.

The switching damper 91 selects whether the air in the condensation space 31 is delivered to the drying space 11 in the control passage. The switching damper 91 allows the air in the condensation space 31 to be discharged to the outside of the condensation chamber 30 when the connection passage 45 is closed. The switching damper 91 allows the air in the condensation space 31 to be delivered to the drying space 11 when the outlet of the second exhaust passage 42 is closed. Since the switching damper 91 is provided at a portion where the second exhaust passage 42 and the connection passage 45 are connected, the outlet of the connection passage 45 or the second exhaust passage 42 can be closed with a simple operation.

A hybrid drying system according to another embodiment of the present invention includes a pressure sensor (P) that measures the pressure of the drying space (11), and a discharge passage (13) that is opened or closed according to the pressure measured by the pressure sensor (P). It may further include a discharge damper 92 that adjusts the opening degree of (13). The discharge damper 92 closes the discharge passage 13 when the drying pressure of the drying space 11 measured by the pressure sensor P is less than the preset reference pressure, so that the drying space 11 is formed through the discharge passage 13. ) can prevent air from being discharged, and maintain the temperature of the drying space (11). The discharge damper 92 opens the discharge passage 13 or adjusts the opening degree of the discharge passage 13 when the drying pressure of the drying space 11 measured by the pressure sensor P is higher than the preset reference pressure, thereby drying the discharge damper 92. It is possible to prevent expansion of the space 11 and damage to the drying room 10, and to prevent overheating of the drying space 11.

The hybrid drying system according to another embodiment of the present invention may further include a water circulation module that condenses the refrigerant compressed in the refrigerant circulation module through circulation of underground water.

The water circulation module includes a water tank 62 in which underground water is stored, a heat exchange module 61 that exchanges heat with the underground water stored in the water tank 62 and the refrigerant compressed in the refrigerant circulation module, and a water tank 62. It may include a water supply pump 66 that pumps the underground water stored in the heat exchange module 61. Here, the heat exchange module 61 is shown as being disposed inside the condensation space 31, but is not limited thereto, and may be disposed at the border of the condensation chamber 30 like the condenser 52, and may be disposed within the condensation space 31. The air in (31) can be heated.

The water circulation module includes a water supply line 621 that connects the water tank 62 and the heat exchange module 61 to form a path for supplying underground water stored in the water tank 62 to the heat exchange module 61, and A water recovery line ( 622), a compression branch line 512 branched from the compression line 511 and connected to the heat exchange module 61 to supply compressed refrigerant to the heat exchange module 61, and a compression branch line 512 branched from the condensation line 521 and connected to the heat exchange module 61. It may further include a condensation branch line 522 that is connected to (61) and forms a path for transferring the refrigerant that has passed through the heat exchange module 61 to the expansion valve 53. Here, since the water supply line 621 is equipped with a water supply pump 66, underground water stored in the water tank 62 can be pumped. In addition, between the branch point of the compression branch line 512 and the condenser 52, the compression line 511 is provided with a compression valve 513 that opens and closes the compression line 511, so it is possible to determine whether or not the refrigerant is delivered to the condenser 52. You can choose. In addition, since the compression branch line 512 is provided with a compression branch valve 514 that opens and closes the compression branch line 512, it is possible to select whether or not to deliver the refrigerant to the heat exchange module 61.

First, when the compression valve 513 opens the compression line 511 and the compression branch valve 514 closes the compression branch line 512, the water supply pump 66 does not operate and the compressed refrigerant Since it is delivered to the condenser 52, as the condensation blower 72 operates, the external air in the condensation chamber 30 passes through the condenser 52 and is heated, and the air in the heated condensation space 31 flows into the second exhaust flow path. It can be delivered to (42).

Second, when the compression valve 513 closes the compression line 511 and the compression branch valve 514 opens the compression branch line 512, the water supply pump 66 operates while the compressed refrigerant Since it is transmitted to the heat exchange module 61, the underground water stored in the water tank 62 can be heated. As the condensation blower 72 operates, the outside air in the condensation chamber 30 passes through the heat exchange module 61 and is heated, or the heat exchange module 61 heats the air in the condensation space 31, thereby heating the condensation space. The air in (31) can be delivered to the second exhaust passage (42).

Third, when the compression valve 513 opens the compression line 511 and the compression branch valve 514 opens the compression branch line 512, both the first and second operations described above can be implemented.

The water circulation module includes a ball top valve 63 that selects whether to supply underground spring water to the water tank 62, a discharge valve 64 that selects whether to discharge underground spring water from the water tank 62, A drying control module (65) that regulates the temperature of the drying space (11) by circulating underground water stored in the water tank (62), and a groundwater pump (67) that pumps underground water that is stored in the ground into the water tank (62). ) may further include at least one of the following.

The water circulation module may further include an underground water supply line 623 that connects the water tank 62 and underground water in response to the ball top valve 63. Since the groundwater supply line 623 is equipped with an underground water pump 67, underground water from the ground can be pumped into the water tank 62. The ball top valve 63 is provided inside the water tank 62 and opens and closes the groundwater supply line 623 according to the level of underground water stored in the water tank 62. When the water level in the water tank 62 decreases, the ball top valve 63 opens the groundwater supply line 623, and the groundwater pump 67 operates, pumping underground water out into the water tank 62. can do. When the water level in the water tank 62 rises to the standard water level, the ball top valve 63 closes the groundwater supply line 623, and the groundwater pump stops, thereby stopping the supply of underground water.

The water circulation module may further include a groundwater recovery line 624 that connects the water tank 62 and underground water discharged from the ground in response to the discharge valve 64. Since the groundwater recovery line 624 is equipped with a discharge valve 64, the underground water stored in the water tank 62 can be discharged into the ground.

Through the linked operation of the ball top valve 63, the underground water pump 67, and the discharge valve 64, the underground spring water stored in the water tank 62 can be replaced with underground spring water from the ground.

The drying control module 65 controls the underground water stored in the water tank 62 by connecting the control heat dissipation unit 651 provided in the drying space 11, the water tank 62, and the control heat dissipation unit 651. The control supply line 652 forms a supply path to the heat dissipation unit 651, and is spaced apart from the control supply line 652 to connect the control heat dissipation unit 651 and the water tank 62 to form an control heat dissipation unit 651. A control recovery line 653 that forms a path to recover the underground water that has passed through the water tank 62, and a control system provided in the control supply line 652 or the control recovery line 653 to pump the underground water. It may include a pump 68. Then, when underground water from the cold water tank 62 is supplied to the control heat dissipation unit 651, the drying space 11 can be cooled or the temperature of the drying space 11 can be adjusted, and the heat exchange module 61 When the underground water from the water tank 62 heated by is supplied to the control heat dissipation unit 651, the drying space 11 can be heated or the temperature of the drying space 11 can be adjusted.

The hybrid drying system according to an embodiment of the present invention may further include a controller 100 that controls the operation of the compressor 51 of the refrigerant circulation module, the Sungpung module, and the switching damper 91. The controller 100 can additionally control the operations of the pressure sensor (P) and the discharge damper 92. The controller 100 may additionally control the operation of the exhaust heating unit 81. The controller 100 can additionally control the operation of the water circulation module. The controller 100 can determine the operation mode according to the temperature conditions of the drying space 11 set by the user, and control the operation of the above-mentioned components according to the determined operation mode.

Referring to FIGS. 4, 5, and 3, the hybrid drying method according to another embodiment of the present invention uses a hybrid drying system according to another embodiment of the present invention to dry the target crop (D) stored inside the drying chamber 10. ) can be dried or the dehumidification performance of the drying room 10 can be improved. A hybrid drying method according to another embodiment of the present invention may include a heat medium circulation step (S1), a mode determination step (S2), and a mode execution step.

The heat medium circulation step (S1) includes the compressor 51 function of the refrigerant through the compressor 51, the condenser 52 function of the refrigerant through the condenser 52, the expansion function of the refrigerant through the expansion valve 53, and the evaporator ( The evaporation of the refrigerant through 54) is sequentially repeated. The heat medium circulation step (S1) can be implemented through the operation of the refrigerant circulation module.

The heat medium circulation step (S1) may include at least a refrigerant circulation step among the refrigerant circulation step, the water circulation step, the groundwater circulation step, and the control circulation step.

The refrigerant circulation stage includes the compressor 51 function of the refrigerant through the compressor 51, the condenser 52 function of the refrigerant through the condenser 52, the expansion function of the refrigerant through the expansion valve 53, and the evaporator 54. The evaporator 54 function of the refrigerant is sequentially repeated. The refrigerant circulation stage can be implemented through the operation of the refrigerant circulation module.

The water circulation stage condenses the refrigerant compressed in the refrigerant circulation stage through the circulation of underground water. The water circulation stage can be implemented through the linked operation of the compression valve 513, the compression branch valve 514, and the water supply pump 66.

In the groundwater circulation stage, underground water from the support is supplied to the water tank (62) or underground water is discharged from the water tank (62). The groundwater circulation stage can be implemented through the linked operation of the groundwater pump (67), ball top valve (63), and discharge valve (64).

The control circulation step cools the drying space (11), heats the drying space (11), or regulates the temperature of the drying space (11) through circulation of underground water. The control circulation stage can be implemented by the operation of the control pump 68 included in the drying control module 65.

The mode determination step (S2) determines an operation mode according to the temperature conditions of the drying space (11). In the mode determination step (S2), the operation mode can be determined according to the temperature conditions of the drying space (11) set by the user according to the processing method of the target crop (D). Operation modes can be divided into low temperature mode, high temperature mode, and temperature increase mode. In the low temperature mode, the drying space 11 is cooled, in the high temperature mode, the drying space 11 is heated in response to the air in the heated condensation space 31, and in the temperature increase mode, the temperature of the air in the heated condensation space 31 is changed. The drying space 11 can be heated to a higher temperature or lower than a preset heating temperature. The mode decision step (S2) can be implemented by the operation of the controller 100.

The mode execution step delivers at least one of the air in the cooling space 21 and the air in the condensation space 31 to the drying space 11 according to the decision in the mode decision step S2. The mode execution step may include any one of a low temperature mode step, a high temperature mode step, and a temperature increase mode step.

In the low temperature mode step, the air in the drying space 11 passes through the evaporator 54 and is delivered to the cooling space 21, and the air in the cooling space 21 passes through the control passage and is delivered to the drying space 11. do.

In the low temperature mode step, the air in the drying space 11 passes through the evaporator 54 and is delivered to the cooling space 21, and the air in the cooling space 21 passes through the control passage to be delivered to the drying space 11. It may include a low-temperature evaporation blowing step (S33) and a low-temperature connection blocking step (S34) that blocks the air in the condensation space (31) from passing through the control passage to the drying space (11). The low-temperature evaporation blowing step (S33) can be implemented by the operation of the evaporation blower (71), and the low-temperature connection blocking step (S34) can be implemented by the operation of the switching damper (91).

The low-temperature mode step includes a low-temperature discharge blocking step (S31) that blocks the discharge passage 13 connecting the drying space 11 and the outside of the drying room 10, and the air in the cooling space 21 passes through the control passage as is. It may further include at least one of a heating stop step (S32) for delivering the air to the drying space (11) and a low-temperature condensation blowing step (S35) for discharging the air in the condensation space (31) to the outside of the condensation chamber (30). You can. The low-temperature exhaust blocking step (S31) can be implemented by the operation of the discharge damper 92, the heating stop step (S32) can be implemented by the operation of the exhaust heating unit 81, and the low-temperature condensation blowing step (S35) can be implemented by operating the condensation blower. It can be implemented through the operation of (72).

In the high temperature mode stage, the external air of the condensation chamber (30) passes through the condenser (52) and is delivered to the condensation space (31), and the air in the condensation space (31) passes through the control passage and is delivered to the drying space (11). Make it possible.

The high-temperature mode step includes a high-temperature exhaust blocking step (S42) that connects the condensation space 31 and the drying space 11, and external air in the condensation chamber 30 passes through the condenser 52 and is delivered to the condensation space 31. It may include a high-temperature condensation blowing step (S43) to ensure that the air in the condensation space 31 passes through the control passage and is delivered to the drying space 11. The high-temperature exhaust blocking step (S42) can be implemented by the operation of the switching damper (91), and the high-temperature condensation blowing step (S43) can be implemented by the operation of the condensation blower (72).

The high temperature mode step may further include a high temperature discharge blocking step (S41) of blocking the discharge passage 13 connecting the drying space 11 and the outside of the drying room 10. The high-temperature discharge blocking step (S41) can be implemented through the operation of the discharge damper (92).

For example, the high temperature mode step may further include a high temperature evaporation blowing step (S45) of stagnant air in the cooling space 21. The high-temperature evaporation blowing step (S45) can be implemented through the operation of the evaporation blower (71). At this time, the temperature of the drying space 11 can be adjusted by adjusting the amount of air blown into the cooling space 21 according to the operation of the evaporation blower 71.

As another example, the high temperature mode step includes a high temperature evaporation blowing step (S45) in which the air contained in the cooling space (21) passes through the evaporator (54) and passes through the control passage to the drying space (11), and the drying space (11) ) may further include a high-temperature heating step (S44) of heating the air in the cooling space (21) passing through the control passage in response to the temperature of the air in the condensation space (31) transmitted to the control passage. The high-temperature evaporation blowing step (S45) can be implemented by the operation of the evaporation blower (71), and the high-temperature heating step (S44) can be implemented by the operation of the exhaust heating unit (81). At this time, the amount of air blown into the cooling space 21 can be adjusted according to the operation of the evaporation blower 71, and the temperature of the exhaust heating unit 81 can be adjusted to control the temperature of the drying space 11.

In the temperature increase mode step, the air contained in the cooling space (21) passes through the evaporator (54), is heated while passing through the control passage, and is delivered to the drying space (11), and passes through the condenser (52) to the condensation space (31). The received air is delivered to the drying space (11) through the control passage.

The temperature increase mode step includes a temperature increase exhaust blocking step (S52) connecting the condensation space 31 and the drying space 11, and the air contained in the cooling space 21 through the evaporator 54 is heated as it passes through the control passage. A temperature raising condensation blowing step (S55) to ensure that the air contained in the condensation space (31) passes through the condenser (52) and is delivered to the drying space (11) through the control passage, and an evaporator ( 54), a temperature-raising evaporation blowing step (S54) in which the air contained in the cooling space (21) passes through the control passage and is delivered to the drying space (11), and a condensation space (31) delivered to the drying space (11). It may include a temperature raising heating step (S53) of heating the air in the cooling space 21 passing through the control passage to be higher than the temperature of the air and below the preset heating temperature. The temperature increase exhaust blocking step (S52) can be implemented by the operation of the switching damper 91, the temperature increase condensation blowing step (S55) can be implemented by the operation of the condensation blower 72, and the temperature increase evaporation blowing step (S54) can be implemented by the evaporation blower. It can be implemented by the operation of (71), and the temperature increasing heating step (S53) can be implemented by the operation of the exhaust heating unit (81). At this time, the amount of air blown into the cooling space 21 can be adjusted according to the operation of the evaporation blower 71, and the temperature of the exhaust heating unit 81 can be adjusted to control the temperature of the drying space 11.

The temperature increase mode step may further include a temperature increase discharge blocking step (S51) of blocking the discharge passage 13 connecting the drying space 11 and the outside of the drying room 10. The temperature rise discharge blocking step (S51) can be implemented through the operation of the discharge damper (92).

The hybrid drying method according to another embodiment of the present invention includes a pressure measurement step of measuring the drying pressure of the drying space 11 and a pressure comparison step (S6) of comparing the drying pressure of the drying space 11 with a preset reference pressure. And, as a result of the comparison in the pressure comparison step (S6), if the drying pressure of the drying space 11 is higher than the preset standard pressure, the discharge branched from the drying space 11 so that the drying space 11 and the outside of the drying room 10 are connected. A discharge opening step (S7) of opening the flow path 13 or adjusting the opening degree of the discharge flow path 13 may be further included. After going through the discharge opening step (S7), when the drying pressure in the drying space 11 is lowered to atmospheric pressure, the discharge damper 92 closes the discharge passage 13. If the drying pressure in the drying space 11 is less than the preset reference pressure as a result of the comparison in the pressure comparison step (S6), the discharge passage 13 is maintained in a blocked state. The pressure measurement step can be implemented by the operation of the pressure sensor (P), the pressure comparison step (S6) can be implemented by the operation of the controller 100, and the discharge opening step (S7) can be implemented by the operation of the discharge damper (92). You can.

The hybrid drying method according to another embodiment of the present invention may further include an end confirmation step (S8) for determining whether to end the operation mode.

As a result of the decision in the termination confirmation step (S8), when the corresponding operation mode is terminated, the hybrid drying system according to another embodiment of the present invention is terminated.

As a result of the decision in the end confirmation step (S8), if the corresponding operation mode is in progress, the operation of the hybrid drying system according to another embodiment of the present invention is maintained.

10: drying room 11: drying space 12: drying rack
13: discharge passage 20: cooling chamber 21: cooling space
30: Condensation chamber 31: Condensation space 41: First exhaust passage
42: second exhaust passage 43: return passage 44: return supply unit
45: Connection passage 51: Compressor 511: Compression line
512: Compression branch line 513: Compression valve 514: Compression branch valve
52: Condenser 521: Condensation line 522: Condensation branch line
53: Expansion valve 531: Expansion line 54: Evaporator
541: Evaporation line 55: Liquid separator 551: Return line
56: Condensate receiver 61: Heat exchange module 62: Water tank
621: Water supply line 622: Water recovery line 623: Groundwater supply line
624: Groundwater recovery line 63: Ball top valve 64: Discharge valve
65: Drying control module 651: Control heat dissipation unit 652: Control supply line
653: Control recovery line 66: Water supply pump 67: Groundwater pump
68: Control pump 71: Evaporation blower 72: Condensation blower
81: Exhaust heating unit 91: Conversion damper 92: Exhaust damper
100: Controller P: Pressure sensor D: Target crop
S1: Heat medium circulation step S2: Mode decision step S31: Low-temperature discharge blocking step
S32: Heating stop step S33: Low-temperature evaporation blowing step S34: Low-temperature connection blocking step
S35: Low-temperature condensation blowing step S41: High-temperature exhaust blocking step S42: High-temperature exhaust blocking step
S43: High-temperature condensation blowing step S44: High-temperature heating step S45: High-temperature evaporation blowing step
S51: Temperature-raising and exhaust blocking step S52: Temperature-raising and exhaust blocking step S53: Temperature-raising and heating step
S54: Temperature-raising evaporation blowing step S55: Temperature-raising condensation blowing step S6: Pressure comparison step
S7: Discharge opening step S8: End confirmation step

Claims (13)

A drying room forming a drying space where target crops are placed;
a cooling chamber forming a cooling space separated from the drying space;
a condensation chamber forming a condensation space partitioned from the drying space and the cooling space;
A refrigerant circulation module that sequentially repeats the compression function of the refrigerant through a compressor, the condensation function of the refrigerant through a condenser, the expansion function of the refrigerant through an expansion valve, and the evaporation function of the refrigerant through an evaporator;
A control passage connecting the drying space, the cooling space, and the condensation space to each other;
An evaporation blower that allows the air in the drying space to pass through the evaporator and be delivered to the cooling space while the air in the cooling space passes through the control passage to be delivered to the drying space, and the outside air of the condensation chamber is supplied to the cooling space. A blowing module including at least one of a condensation blower that allows air from the condensation space to pass through the condenser and be delivered to the condensation space, while allowing air from the condensation space to pass through the control passage and be delivered to the drying space; and
A hybrid drying system including a switching damper that selects whether the air in the condensation space is delivered to the drying space in the control passage.
According to paragraph 1,
a discharge passage branching from the drying space to connect the drying space to the outside of the drying room;
A pressure sensor that measures the pressure in the drying space; and
A hybrid drying system further comprising a discharge damper that opens and closes the discharge passage or adjusts the opening degree of the discharge passage according to the pressure measured by the pressure sensor.
According to paragraph 1,
The control flow path is,
a first exhaust passage branching from the cooling space to form a path through which air in the cooling space moves;
a second exhaust passage branching from the condensation space to connect the condensation space to the outside of the condensation chamber;
a connection passage branching from the second exhaust passage to be connected to the first exhaust passage; and
A hybrid drying system comprising a return flow path that combines the first exhaust flow path and the connection flow path and is connected to the drying space.
According to paragraph 3,
In the first exhaust passage,
an exhaust heating unit that heats air discharged from the cooling space; A hybrid drying system characterized in that it is provided.
According to any one of claims 1 to 4,
A hybrid drying system further comprising a water circulation module that condenses the refrigerant compressed in the refrigerant circulation module through circulation of underground water.
According to clause 5,
The water circulation module is,
A water tank storing the underground water;
a heat exchange module that exchanges heat with the underground water stored in the water tank and the refrigerant compressed in the refrigerant circulation module; and
A hybrid drying system comprising a water supply pump that pumps underground water stored in the water tank to the heat exchange module.
According to clause 5,
The water circulation module is,
A ball top valve that selects whether to supply the underground water to the water tank;
A discharge valve that selects whether to discharge the underground water from the water tank;
A drying control module that regulates the temperature of the drying space by circulating underground water stored in the water tank; and
a groundwater pump that pumps the underground water into the water tank;
A hybrid drying system further comprising at least one of the following.
A hybrid drying method using the hybrid drying system according to any one of claims 1 to 4,
A heat medium circulation step of sequentially repeating the compression function of the refrigerant through a compressor, the condensation function of the refrigerant through a condenser, the expansion function of the refrigerant through an expansion valve, and the evaporation function of the refrigerant through an evaporator;
A mode determination step of determining an operation mode according to the temperature conditions of the drying space;
A mode execution step of delivering at least one of air in the cooling space and air in the condensation space to the drying space according to the decision in the mode decision step,
The mode execution step is,
A low-temperature mode step of allowing air in the drying space to pass through the evaporator and be delivered to the cooling space, and allowing air in the cooling space to pass through the control passage to be delivered to the drying space;
A high temperature mode step of allowing external air from the condensation chamber to pass through the condenser and be delivered to the condensation space, and allowing air from the condensation space to pass through the control passage to be delivered to the drying space; and
The air contained in the cooling space passing through the evaporator is heated while passing through the control passage and is delivered to the drying space. The air passing through the condenser and contained in the condensation space passes through the control passage to be delivered to the drying space. A temperature increase mode step to ensure delivery;
A hybrid drying method comprising any one of the following.
According to clause 8,
The low temperature mode step is,
A low-temperature evaporation blowing step of allowing the air in the drying space to pass through the evaporator and be delivered to the cooling space, and allowing the air in the cooling space to pass through the control passage to be delivered to the drying space;
A hybrid drying method comprising a low-temperature connection blocking step of blocking air in the condensation space from passing through the control passage and being delivered to the drying space.
According to clause 8,
The high temperature mode step is,
A high-temperature exhaust blocking step of connecting the condensation space and the drying space; and
A high-temperature condensation blowing step of allowing external air from the condensation chamber to pass through the condenser and be delivered to the condensation space, and allowing air from the condensation space to pass through the control passage and be delivered to the drying space. Hybrid drying method.
According to clause 8,
The temperature increase mode step is,
A temperature rise exhaust blocking step of connecting the condensation space and the drying space;
The air contained in the cooling space passing through the evaporator is heated while passing through the control passage and is delivered to the drying space. The air passing through the condenser and contained in the condensation space passes through the control passage to be delivered to the drying space. A temperature-elevating condensation blowing step to ensure transfer;
A temperature-raising evaporation blowing step of allowing the air contained in the cooling space through the evaporator to pass through the control passage and be delivered to the drying space; and
A hybrid drying method comprising: a temperature raising step of heating the air in the cooling space passing through the control passage to be higher than the temperature of the air in the condensation space delivered to the drying space and below a preset heating temperature. .
According to clause 8,
The heat medium circulation step is,
A refrigerant circulation step of sequentially repeating the compression function of the refrigerant through a compressor, the condensation function of the refrigerant through a condenser, the expansion function of the refrigerant through an expansion valve, and the evaporation function of the refrigerant through an evaporator;
A water circulation step of condensing the refrigerant compressed in the refrigerant circulation step through circulation of underground water;
A groundwater circulation step of supplying underground spring water to a water tank or discharging underground spring water from the water tank; and
A control circulation step of cooling the drying space, heating the drying space, or controlling the temperature of the drying space through circulation of underground water;
A hybrid drying method comprising at least a refrigerant circulation step.
According to clause 8,
A pressure measurement step of measuring the drying pressure of the drying space;
A pressure comparison step of comparing the drying pressure of the drying space with a preset reference pressure; and
As a result of the pressure comparison step, if the drying pressure of the drying space is higher than the preset reference pressure, the discharge passage branching from the drying space is opened or the opening degree of the discharge passage is adjusted so that the drying space and the outside of the drying room are connected. A hybrid drying method further comprising a discharge opening step of controlling.

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