KR20130063241A - All-season used drying system using heat pump unit - Google Patents

Abstract

PURPOSE: An integrated dry system and a drying method are provided to not to eject wet steam passing through the object to-be-dried by using a heating pump and let it inflow inside the drying device and circulate to the drying unit to reuse. CONSTITUTION: A heating pump unit comprises a compressor, a condenser(112), and a first evaporator(113). A first circulating water line comprises a hot-water tank(120), a first pipe(121), a second pipe(122), and a pump which supplies power for circulating a first circulating water. A second circulating water line comprises a cold water tank(130), a third pipe(131), a fourth pipe(132), and a distribution pump which supplies power for circulating a second circulating water. A drying device has a cooling unit and a heating unit. A cool water pump(260) provides power to supply cold water to the cooling unit(210). A hot water pump(260) provides power to supply hot water to the heating unit. Hot water stored in a heating tank is respectively flowed into several heating units(221) equipped in the heating part(220) through a first distribution pipe(222) to heat the wet steam passing through the heating part. Cold water stored in a cold water tank is respectively flowed into several cooling units(211) equipped in the cooling part through a second distribution pipe(212) to cool the wet steam passing through the cooling part.

Description

All season used drying system using heat pump unit

The present invention relates to a four season drying system having a heat pump unit. More specifically, it relates to a four-season drying system having a heat pump unit that generates cold water and hot water by the evaporator and condenser of the heat pump unit, and removes and heats the moisture of the wet steam passing through the dry matter by the cold water and hot water. will be.

In general, in order to dry the dried material such as seaweed, etc., drying is performed at about 50 ° C. A hot air drying method using a burner and an electric heater method using an electric heater are used. However, the hot air drying method or the electric heater method is an indirect heating method, in which the internal air is heated by a burner or an electric heater in a drying chamber, and the heated air contacts heat with dry steam, which is to be dried, to contain heat to dry. The moisture gains energy, evaporates and mixes with the air, and the wet steam mixed with the air is discharged through the fan-attached outlet.

That is, such a drying method is not efficient because the steam is discharged immediately when the steam is discharged, which causes a lot of heat loss. Thus, the fuel cost increases, which eventually leads to the cost of the product, thereby lowering the competitiveness of the product. The problem exists.

Therefore, Korean Patent Publication No. 2009-0116680 (published on November 11, 2009) disclosed in the related art has a structure in which air is circulated through a heat exchange type into a drying chamber without directly discharging wet steam using a heat pump in a drying system. It is described. 1 is a block diagram of a laver drying system using a conventional heat pump.

As shown in FIG. 1, it can be seen that a conventional drying system 10 using a heat pump is provided with a heat pump unit 5 outside the drying chamber 2. The heat pump unit 5 includes an evaporator 6, a compressor 7, a condenser 9 and an expansion valve 8, as usual. Therefore, the refrigerant circulating in the heat pump unit 5 flows into the compressor 7 to discharge the high-pressure and high-temperature gas refrigerant, and the refrigerant discharged from the compressor 7 flows into the condenser 9 and passes through another line. It is condensed by releasing heat into the introduced wet steam.

Then, the condensed refrigerant is introduced into the evaporator 6 through the expansion valve (8), is supplied with heat from the wet steam introduced through a separate line and an external heat source (outside air, etc.) and evaporated, and then back to the compressor (7) The refrigerant line 11 is introduced. In addition, the wet steam discharged from the drying chamber 2 flows into the evaporator 6 of the heat pump unit 5 to release heat to the refrigerant, enters the condenser 9, receives heat, and then flows back into the drying chamber 2. This constitutes a wet steam line.

That is, the drying system 10 using the conventional heat pump is heated again through the heat pump unit 5 to flow into the drying chamber 2 without directly discharging the wet steam passing through the dry object 1 outward. However, the conventional drying system 10 using the heat pump does not have a cooling means for cooling the dry object 1, there is a problem that a separate cooling device must be installed. In addition, while the air heated in the heat pump unit 5 is introduced into the drying chamber again, the thermal efficiency is reduced. In addition, there is a problem that the production of cold water for cooling the wet steam is difficult because the load is different by season.

Therefore, the wet steam passing through the dry matter can be circulated again into the drying chamber while cooling, dehumidifying and heating the wet steam continuously, and can produce lower cold water regardless of the season, and the heating part of the drying apparatus. Four seasons drying system and drying method using a heat pump that can control the flow rate of hot and cold water flowing into the cooling unit was required.

The present invention has been made in order to solve the above problems, according to an embodiment of the present invention by using a heat pump does not discharge the wet steam passing through the dried out, inflow into the drying apparatus and circulated back to the drying unit again It is provided to the integrated drying system and drying method using a heat pump and cooling means that can be reused to improve the thermal efficiency.

In addition, the wet steam passing through the dry matter to provide a four-season drying system having a heat pump unit capable of continuously dehumidifying the drying system and producing heated air through the drying device.

In addition, by further comprising a cooling means having a second evaporator to further lower the temperature of the cold water, regardless of the season, the wet steam passing through the dry matter flows into the drying apparatus to continuously cool, dehumidify and heat the wet steam. It is to provide a four season drying system having a heat pump unit.

In addition, according to an embodiment of the present invention can individually adjust the amount of hot water flowing into the plurality of heating units provided in the heating unit, and individually adjust the amount of cold water flowing into the plurality of cooling units provided in the cooling water It is to provide a four-season drying system having a heat pump unit capable of.

Other objects, specific advantages and novel features of the present invention will become more apparent from the following detailed description and preferred embodiments in conjunction with the accompanying drawings.

An object of the present invention, in the drying system, the compressor to compress the incoming refrigerant to discharge the gas refrigerant of high temperature and high pressure and the refrigerant discharged from the compressor is introduced into the heat of the refrigerant to the first circulating water introduced through a separate line The discharged condenser, the expansion valve into which the refrigerant discharged from the condenser flows in, and the refrigerant discharged from the expansion valve flow in and exchange heat with the second circulation water introduced through a separate line to absorb the heat of the second circulation water. A heat pump unit having a first evaporator discharged; A hot water tank in which hot water is stored therein, a first pipe connecting the condenser and the hot water tank to heat the hot water by the first circulating water by introducing the first circulating water discharged from the condenser into the hot water tank, and the first heat exchanged with the hot water. A first circulating water line having a second pipe connecting the condenser and the hot water tank to introduce the circulating water to the condenser and a pump for supplying power for circulating the first circulating water; Cold water tank in which cold water is stored therein, and the third pipe connecting cold water tank to cold water tank so that cold water is cooled by the second circulation water by introducing the second circulating water discharged from the first evaporator into the cold water tank. A second circulation line having a fourth pipe provided between the first evaporator and the cold water tank and a distribution pump for supplying power to circulate the second circulation water so that the heat exchanged second circulation water flows into the first evaporator; The water vapor flows into which the wet steam is dried to the front, and has a cold water coil into which cold water stored in the cold water tank flows inward, and a cooling part and a cooling part configured to cool the wet steam by cold water are connected to the rear, and the hot water tank is internally connected. A drying apparatus having a heating unit configured to include a hot water coil into which hot water stored therein is introduced to heat wet steam by the hot water; Cold water pump to provide power for supplying cold water to the cooling unit; And a hot water pump for providing power for supplying hot water to the heating unit.

In order to introduce a part of the second circulating water discharged through the fourth pipe, a part of the fifth pipe and the second circulating water connected to the fourth pipe is introduced to discharge the heat of the second circulating water to the outside to discharge the second circulating water. It may further comprise a cooling means having a sixth pipe for introducing the second evaporator to cool and the second circulated water cooled by the second evaporator into the cold water tank.

And a blower fan provided in at least one of the front and rear of the drying apparatus and configured to introduce the wet steam passing through the dry matter to the cooling unit side of the drying apparatus and to flow air discharged from the heating unit of the drying apparatus to the dry matter side. It can be characterized by.

The heating unit includes a plurality of heating units, each of the first circulating water distributed through the first distribution pipe flows into a hot water coil installed in each of the heating units, and the cooling unit includes a plurality of cooling units. Each of the second circulation water distributed through the inlet may be introduced into a cold water coil installed in each of the cooling units.

The hot water flow rate control unit for controlling the three-way valve and the three-way valve provided in each of the inlet of the heating unit to adjust the flow rate of the hot water introduced into each heating unit may be characterized in that it further comprises.

It may be characterized in that it further comprises a cold water flow rate adjusting unit for controlling the three-way valve and the three-way valve provided in each of the inlet of the cooling unit to adjust the flow rate of the cold water introduced into each of the cooling unit.

It may be characterized by further comprising a control unit for controlling the distribution pump to control the flow rate of the second circulating water discharged from the cold water tank flows into the first evaporator side.

Therefore, according to one embodiment of the present invention, as described, it is possible to improve the thermal efficiency by introducing the inside of the drying apparatus and circulating again to the drying unit without discharging the wet steam passing through the to-be-dried by using the heat pump. Has an effect.

In addition, the wet steam passing through the dry matter has the advantage that the drying system can continuously remove the moisture and produce heated air through the drying apparatus.

In addition, by further comprising a cooling means having a second evaporator can lower the temperature of the cold water regardless of the season, the wet steam passing through the dry matter flows into the drying apparatus to continuously cool, remove moisture and heat the wet steam Has an effect.

The amount of hot water introduced into the plurality of heating units provided in the heating unit may be individually adjusted, and the amount of cold water introduced into the plurality of cooling units provided in the cooling water may be individually controlled.

Although the present invention has been described in connection with the above-mentioned preferred embodiments, it will be appreciated by those skilled in the art that various other modifications and variations can be made without departing from the spirit and scope of the invention, All fall within the scope of the appended claims.

1 is a block diagram of a laver drying system using a conventional heat pump,
Figure 2 is a schematic diagram showing a four seasons drying system having a heat pump unit according to an embodiment of the present invention,
3 is a configuration diagram of a four-season drying system having a heat pump unit according to an embodiment of the present invention,
4 is a configuration diagram of a heat pump unit according to an embodiment of the present invention;
5 is a partial configuration diagram showing a cold water tank portion connected to the first evaporator and the second evaporator according to an embodiment of the present invention,
6 is a configuration diagram of a drying apparatus including a cooling unit having a plurality of cooling units and a heating unit having a plurality of heating units according to an embodiment of the present invention;
7 is a block diagram showing a control signal flow according to an embodiment of the present invention;
8 is a cross-sectional view of a drying chamber in which a four-season drying system having a heat pump unit according to an embodiment of the present invention is installed;
9 is a flowchart illustrating a drying method using a four season drying system having a heat pump unit according to an embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, the detailed description of known functions and configurations incorporated herein will be omitted when it may unnecessarily obscure the subject matter of the present invention.

The same reference numerals are used for portions having similar functions and functions throughout the drawings. Throughout the specification, when a part is connected to another part, this includes not only the case where it is directly connected, but also the case where it is indirectly connected with another element in between. In addition, the inclusion of an element does not exclude other elements, but may include other elements, unless specifically stated otherwise.

Hereinafter, the configuration and operation of the four seasons drying system 100 having the heat pump unit 110 according to an embodiment of the present invention. First, Figure 2 shows a schematic diagram showing a four seasons drying system 100 having a heat pump unit 110 according to an embodiment of the present invention. And, Figure 3 shows a block diagram of a four-season drying system 100 having a heat pump unit 110 according to an embodiment of the present invention.

As shown in Figure 2 and 3, the four seasons drying system 100 having a heat pump unit 110 according to an embodiment of the present invention is a heat pump unit 110 and hot water tank 120, cold water tank 130 and the drying apparatus 200 having the heating unit 220 and the cooling unit 210 and the like. In addition, as shown in Figure 3, the four seasons drying system having a heat pump unit 110 according to an embodiment of the present invention further includes a cooling means 140.

As shown in Figure 2 and 3, the heat pump unit 110 according to an embodiment of the present invention is provided with a condenser 112 and the first evaporator 113, etc., in the heat pump unit 110 The condenser 112 supplies heat to the first circulating water introduced through a separate line by the circulating refrigerant to heat the first circulating water. The first evaporator 113 cools the second circulating water by absorbing heat from the second circulating water introduced through a separate line.

The first circulating water passing through the condenser 112 passes the hot water tank 120 while heating the hot water stored in the hot water tank 120, and the second circulating water passing through the first evaporator 113 is the cold water tank. While passing through 130, the cold water stored in the cold water tank 130 is cooled.

And, the cooling means 140 is provided with a second evaporator 142 therein, so that the heat is discharged to the outside from the second circulating water flows to cool the second circulating water. That is, in the cold water tank 130, the second circulating water is discharged through the fourth pipe 132, and the flow rate is controlled by the distribution pump 133, and a part of the first evaporator 113 of the heat pump unit 110 is provided. Is introduced through the inlet of, the remainder is introduced to the second evaporator 142 side of the cooling means 140 through the fifth pipe (141). Therefore, a part of the second circulating water is introduced into the first evaporator 113 and the remainder flows into the second evaporator 142 and is cooled by the first evaporator 113 and the second evaporator 142, respectively, and the second evaporator 142. The second circulating water introduced into the discharged through the sixth pipe 143, the second circulating water introduced into the first evaporator 113 is discharged through the fourth pipe 132, the inlet of the cold water tank 130 Combined with each other at the side is introduced into the cold water tank (130).

In addition, the hot water stored in the hot water tank 120 is introduced into each of the plurality of heating units 221 provided in the heating unit 220 through the first distribution pipe 222 to heat the wet steam passing through the heating unit 220. The cold water stored in the cold water tank 130 is introduced into each of the plurality of cooling units 211 provided in the cooling unit 210 through the second distribution pipe 212 to cool the wet steam passing through the cooling unit 210. Done.

Hereinafter, the configuration of the four seasons drying system 100 having the heat pump unit 110 will be described in more detail. First, Figure 4 shows the configuration of the heat pump unit 110 according to an embodiment of the present invention.

As shown in FIG. 4, the heat pump unit 110 according to an embodiment of the present invention includes a condenser 112, an expansion valve 114, a first evaporator 113, and a compressor 111. The refrigerant flows into the compressor 111 and is discharged into a gas refrigerant having a high temperature and high pressure, and the refrigerant discharged from the compressor 111 flows into the condenser 112 and is introduced through a first line 121 which is a separate line. It exchanges heat with 1 circulation water. That is, heat of the coolant is supplied to the first circulating water, the first circulating water is heated, and the coolant is condensed. The heated second circulating water is sent to the hot water tank 120 through the second pipe 122. The heated first circulating water is introduced into the hot water tank 120 to heat the hot water stored in the hot water tank 120.

The refrigerant discharged from the condenser 112 is decompressed through the expansion valve 114 to be introduced into the first evaporator 113. Then, the second circulating water flows into the first evaporator 113 through the fourth pipe 132 to generate heat exchange between the refrigerant and the second circulating water. That is, the refrigerant absorbs heat of the second circulating water and evaporates, and the second circulating water is cooled. The second circulating water cooled by the first evaporator 113 is sent to the cold water tank 130 through the third pipe 131. The refrigerant discharged from the first evaporator 113 flows back into the compressor 111 to complete the refrigerant line.

5 is a partial block diagram showing a portion of the cold water tank 130 is connected to the first evaporator 113 and the second evaporator 142 according to an embodiment of the present invention. As shown in FIG. 5, the second circulating water discharged through the cold water tank 130 and discharged through the fourth pipe 132 is partially distributed by the distribution pump 133 and the first evaporator of the heat pump unit 110. 113 is sent to the side, and the rest is sent to the cooling means 140 through the fifth pipe (141).

The second circulating water introduced into the cooling means 140 flows into the second evaporator 142 provided in the cooling means 140 to exchange heat with the outside air. That is, the heat of the second circulating water is cooled while being released to the outside. The second circulating water cooled by the second evaporator 142 is sent to the cold water tank 130 through the sixth pipe 143.

On the other hand, the second circulating water sent to the heat pump unit 110 through the fourth pipe 132 flows into the first evaporator 113 side and, as mentioned above, is cooled by heat-exchanging with the refrigerant, and the cooled second circulation Water is sent to the cold water tank 130 through the third pipe (131). As shown in FIG. 4, the ends of the third pipe 131 and the sixth pipe 143 are connected to each other and discharged from the second circulating water discharged from the first evaporator 113 and the second evaporator 142. The second circulating water is combined to flow back into the cold water tank 130. The cooled second circulation water passes through the cold water tank 130 to cool the cold water stored in the cold water tank 130.

6 is a configuration of a drying apparatus 200 including a cooling unit 210 having a plurality of cooling units 211 and a heating unit 220 having a plurality of heating units 221 according to an embodiment of the present invention. The figure is shown. As shown in FIG. 5, the hot water tank 120 stores hot water stored in the hot water tank 120 by the first circulating water flowing therein. Then, the hot water stored in the hot water tank 120 by the hot water pumps 270 and 270 is pumped to the heating part 220 side of the drying apparatus 200. The hot water flowing into the heating unit 220 side of the drying apparatus 200 is distributed through the first distribution pipe 222 so that a plurality of heating units 221 provided in the heating unit 220 (in a specific embodiment, FIG. 6). As shown, four heating units 221 are provided. In addition, the inlet portion of each of the heating unit 221 is provided with a three-way valve 240 can adjust the amount of hot water flowing into the heating unit 221. The heating unit 221 is provided with a hot water coil to heat the wet steam passing through the heating unit 221 by hot water introduced through the hot water coil.

In addition, the cold water tank 130 is cooled by the cold water stored in the cold water tank 130 by the second circulating water. Then, the cold water stored in the cold water tank 130 by the cold water pump 260 is pumped to the cooling unit 210 side of the drying apparatus 200. The cold water flowing into the cooling unit 210 side of the drying apparatus 200 is distributed through the second distribution pipe 212, and the plurality of cooling units 211 provided in the cooling unit 210 (in the specific embodiment of FIG. 6). As shown, four cooling units 211 are provided. In addition, the inlet portion of each of the cooling unit 211 is provided with a three-way valve 240 can adjust the amount of cold water flowing into the cooling unit 211. In addition, the cooling unit 211 is provided with a cold water coil to cool the wet steam passing through the cooling unit 211 by the cold water introduced through the cold water coil. In addition, the front or rear of the drying apparatus 200 is provided with a blowing fan 230, the wet steam passing through the object to be dried (1) flows into the cooling unit 210 of the drying apparatus 200 to the heating unit 220 It passes through and is discharged so that it can be sent to the building 1 side.

In addition, as shown in Figure 6, the hot water tank 120 and the cold water tank 130 may further include a cold pipe (280) installed on one side of the seventh pipe 281 and the seventh pipe. . Therefore, when it is necessary to increase the temperature of the cold water stored in the cold water tank 130 according to the external load, by operating the cold hot pump 280, the hot water stored in the hot water tank 120 through the cold water tank (281) It may be introduced to the (130) side.

7 is a block diagram illustrating a control signal flow according to an embodiment of the present invention. As shown in FIG. 7, the controller 300 is electrically connected to the pump 123 and the distribution pump 133. The controller 300 controls the operation of the pump 123 to adjust the flow rate and speed of the first circulating water circulated between the hot water tank 120 and the condenser 112 of the heat pump unit 110. In addition, the controller 300 controls the operation of the distribution pump 133 to adjust the flow rate and speed of the second circulation water and at the same time the second circulation water flowing into the first evaporator 113 of the heat pump unit 110. And the amount of second circulating water flowing into the second evaporator 142 of the cooling means 140. In addition, the controller 300 may control the cold / hot pump 280 to adjust the flow rate of hot water introduced into the cold water tank 130.

In addition, the flow control unit 400 may be divided into a cold water flow rate control unit and a hot water flow rate control unit, the cold water flow rate control unit controls the amount of cold water flowing into the cooling unit 210 by controlling the cold water pump 260, The amount of cold water introduced into each of the cooling units 211 may be controlled by controlling the three-way valve 240 provided at the inlet of the cooling unit 211. On the other hand, the hot water flow control unit controls the amount of hot water flowing into the heating unit 220 by controlling the hot water pump 270, the heating unit by controlling the three-way valve 240 provided in the inlet of the heating unit 221 221 may adjust the amount of hot water introduced into each.

Hereinafter, a drying method using the four seasons drying system 100 having the heat pump unit 110 according to an embodiment of the present invention. 8 is a cross-sectional view of a drying chamber 2 in which a four-season drying system 100 having a heat pump unit 110 according to an embodiment of the present invention is installed. And, Figure 9 shows a flow chart of a drying method using a four season drying system 100 having a heat pump unit 110 according to an embodiment of the present invention.

As shown in FIG. 8 and FIG. 9, the pump 123 and the distribution pump 133 are operated so that the hot water stored in the hot water tank 120 is heated by the circulation of the first circulation water, and the second circulation water. By the circulation of the cold water stored in the cold water tank 130 is cooled.

And, as shown in Figure 8, the wet steam passing through the dry matter (1) moved by the conveyor belt 150 by the operation of the blower fan 230 to dry the dry matter (1) drying unit (3) In flow into the processing unit (4).

The wet steam introduced into the processing unit is introduced into the front of the drying apparatus 200 by the wind by the blowing fan 230 (S10). And, the cold water stored in the cold water tank 130 is introduced into the cooling unit 210 of the drying apparatus 200 by the cold water pump 260, the wet steam passing through the cooling unit 210 to the cooling unit 210 Cooled by the flowing cold water (S20).

The hot water stored in the hot water tank 120 is introduced into the heating part 220 of the drying apparatus 200 by the hot water pump 270, and the wet steam passing through the cooling part 210 is continuously heated. While passing through), it is heated by hot water (S30).

The wet steam which has continuously passed through the cooling unit 210 and the heating unit 220 is removed from the moisture and discharged into the heated air to dry the dry matter 1 while passing through the dry matter 1 again (S40).

1: dry matter
2: drying room
3: drying section
4: processing department
5: Heat pump unit of conventional drying system
6: Evaporator of conventional drying system
7: Compressor of conventional drying system
8: Expansion valve of conventional drying system
9: Condenser of conventional drying system
10: Conventional drying system
100: drying system according to an embodiment of the present invention
110: heat pump unit
111: compressor
112: condenser
113: first evaporator
114: expansion valve
120: hot water tank
121: Building 1
122: subsection 2
123: pump
130: cold water tank
131: The third building
132: Building 4
133: distribution pump
140: cooling means
141: Subsection 5
142: the second evaporator
143: Building 6
150: conveyor belt
200: drying device
210: cooling part
211: cooling unit
212: second distribution pipe
220: heating part
221: heating unit
222: first distribution pipe
230: blowing fan
240: three-way valve
260: cold water pump
270: hot water pump
280: cold and hot pump
281: Building 7
300: control unit
400: flow rate control unit

Claims (7)

In the drying system,
Compressor for compressing the incoming refrigerant to be discharged to the high-temperature high-pressure gas refrigerant and the refrigerant discharged from the compressor is introduced into the first circulating water introduced through a separate line to discharge the heat of the refrigerant discharged from the condenser A first in which the refrigerant is introduced into the expansion valve and the refrigerant discharged from the expansion valve is introduced into heat exchange with the second circulation water introduced through a separate line, and the refrigerant absorbs and discharges the heat of the second circulation water. A heat pump unit having an evaporator;
A hot water tank having hot water stored therein, a first pipe connecting the condenser and the hot water tank to introduce the first circulating water discharged from the condenser into the hot water tank to heat the hot water by the first circulating water, A first circulation having a second pipe connecting the condenser and the hot water tank to supply the first circulation water heat-exchanged with the hot water to the condenser, and a pump for supplying power for circulating the first circulation water Can be line;
A cold water tank in which cold water is stored therein, and the second circulating water discharged from the first evaporator is introduced into the cold water tank to connect the first evaporator and the cold water tank to cool the cold water by the second circulating water. And supplying power for circulating a third pipe and a fourth pipe provided between the first evaporator and the cold water tank so that the second circulating water exchanged with the cold water is introduced into the first evaporator. A second circulating water line having a distribution pump;
The cooling unit and the cooling unit configured to cool the wet steam by the cold water are provided with a cold water coil into which the wet steam in which the dried object is dried forward is introduced, and the cold water stored in the cold water tank is introduced therein. A drying device having a heating unit configured to heat the wet steam by the hot water by including a hot water coil into which the hot water stored in the hot water tank flows;
A cold water pump providing power for supplying the cold water to the cooling unit; And
And a hot water pump for providing power for supplying the hot water to the heating unit.
The method of claim 1,
In order to introduce a part of the second circulating water discharged through the fourth pipe, a fifth pipe connected to the fourth pipe and a part of the second circulating water are introduced to discharge heat of the second circulating water to the outside. Cooling means having a second evaporator for cooling a second circulating water and a sixth pipe for introducing the second circulating water cooled by the second evaporator into the cold water tank;
A seventh pipe provided between the hot water tank and the cold water tank and configured to exchange hot water stored in the hot water tank and cold water stored in the cold water tank; And a cold / hot pump installed in the seventh pipe.
The method of claim 1,
It is provided at at least one of the front and rear of the drying apparatus and configured to introduce the wet steam passing through the dry matter to the cooling unit side of the drying apparatus, and to flow air discharged from the heating unit of the drying apparatus to the dry matter side. Four seasons drying system having a heat pump unit, characterized in that it further comprises a blowing fan.
The method of claim 1,
The heating unit includes a plurality of heating units, each of the first circulating water distributed through the first distribution pipe flows into a hot water coil installed in each of the heating units,
The cooling unit includes a plurality of cooling units, each of the second circulating water distributed through the second distribution pipe flows into the cold water coil installed in each of the cooling unit, characterized in that the drying system having a heat pump unit .
5. The method of claim 4,
Four seasons having a heat pump unit characterized in that it further comprises a three-way valve provided in each of the inlet portion of the heating unit and a hot water flow rate control unit for controlling the flow rate of the hot water flowing into each of the heating unit by controlling the three-way valve Drying system.
5. The method of claim 4,
Four seasons having a heat pump unit further comprises a three-way valve provided in each of the inlet of the cooling unit and a cold water flow rate control unit for controlling the three-way valve to adjust the flow rate of the cold water introduced into each of the cooling unit Drying system.
The method of claim 2,
The heat pump unit further comprises a control unit for controlling the distribution pump to adjust the flow rate of the second circulating water discharged from the cold water tank flows into the first evaporator side, and to control the cold and hot pump Four seasons drying system.

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