KR20100009086A - Drying system and device using cooling device - Google Patents

Abstract

PURPOSE: A drying system and device using a cooling device is provided to effectively dry an object to be dried by heating up it with heat of hot water heated by the heat of a refrigerant gas. CONSTITUTION: A drying system and device using a cooling device comprises a drying chamber(4), a hot water heat exchanging shaft(5), a cold water circulation coil(6), an indoor and outdoor evaporators(9a,9b), an inlet and outlet lines(91a,92a,92b) of the inside and outside evaporators. The drying chamber has a main heat exchanger(2) drying an object to be dried with the heat transferred from the refrigerant gas. The hot water heat exchange shaft dries an object to-be-dried using the heat of the hot water of a hot water tank(50). The cold water circulation coil eliminates the moisture created in the object to-be-dried heated by a main heat exchanger and a hot water heat exchange shaft. A solenoid valve(94a) or an expansion valve(93b) is reversely opened or closed to supply the refrigerant gas transferred to a liquid receiver outlet line to the inside or outside evaporators. A solenoid valve(94b) of the inlet and outlet lines of the inside and outside evaporators is reversely opened or closed to carry the refrigerant gas discharged from the indie and outside evaporators into the liquid separator through its inlet line.

Description

Drying system and device using refrigeration equipment {Drying system and device using cooling device}

The present invention relates to a drying system and a drying apparatus using a refrigeration apparatus for use in drying a large amount of water and waste, food waste and the like.

In general, a method of collecting food waste generated from a general home or a restaurant and crushing it and then filling it in a state of minimizing its volume or incineration has been used, but nowadays, food waste is fermented and composted. A method for recycling organic fertilizers has been proposed.

In order to compost food waste or organic fertilizer as described above, food waste should be dried first. In the prior art, food waste has been dried by a drying apparatus using oil as fuel or electric energy.

However, in the era of high oil prices of international oil prices, when food waste is dried by using expensive fuels, food waste is dried by compost or organic fertilizer, compared to compost or organic fertilizer obtained by drying food waste. It is pointed out that it is unproductive because it costs more fuel to obtain organic fertilizer.

The present invention is to dry the food waste by using a refrigeration device to circulate the refrigerant at a much lower cost than the cost of drying food waste using expensive oil or electric energy in view of the problems shown in the prior art as described above. Invented for the purpose of providing a drying system and a drying device that can be processed, and also to dry the sewage as a by-product when manufacturing tofu food.

The present invention as a means for achieving the above object,

Drying system using the freezing device of the present invention,

Compressor for compressing the refrigerant gas, condenser condensing the refrigerant gas of high temperature and high pressure, expansion valve for rapidly expanding the condensed refrigerant, evaporator for evaporating the expanded mist of refrigerant evaporated from the condensation refrigerant and the evaporator conveyed from the condenser In a drying system using a refrigerating device having a heat exchanger configured to heat the refrigerant gas and send only the refrigerant gas evaporated to the gas to the compressor,

A drying chamber equipped with a main heat exchanger for drying the dried item by heat exchange of refrigerant gas compressed and circulated by the compressor to dry the dried item;

A hot water heat exchange shaft mounted inside the drying chamber together with the main heat exchanger, and drying the dry items introduced into the drying chamber by using heat quantity of hot water supplied and circulated from the hot water tank;

It is mounted inside the drying chamber to remove moisture (vapor) generated from the dried material heated by the main heat exchanger and the hot water heat exchange shaft, and when the dried material is dried using cold water supplied from a cold water tank. Cold water circulation coil to attach the generated moisture;

Inner and outer evaporator is installed separately in each of the inside and outside of the cold water tank;

In order to supply the refrigerant gas transferred to the fluid outlet port of the liquid heater to one of the internal and external evaporators, one solenoid valve installed to open and close to each other is installed one by one. Internal and external evaporator inlet lines installed one by one;

In order to transfer the refrigerant gas discharged from the internal and external evaporators to the liquid separator through the liquid separator inlet line of the liquid heater, each of the internal and external evaporator outlets is provided with a solenoid valve installed to open and close oppositely. line;

Characterized in that configured to include.

In addition, the compressor outlet line connecting the compressor and the main heat exchanger mounted to the drying chamber is characterized in that the electric heater is equipped with one or more electric heater heaters connected in series.

In addition, the condenser inlet line connecting the main heat exchanger and the condenser mounted on the drying chamber is formed with a hot water circulation pipe installed to circulate the hot water supplied from the hot water tank, and the hot water circulation pipe wrapped around the main heat exchanger. At least one refrigerant hot water heat exchanger having a dual structure of the refrigerant circulation pipe installed to circulate the refrigerant gas transported through is characterized in that it is connected in series.

In addition, the inlet line of the condenser is connected to an internal refrigerant circulation pipe through which the refrigerant gas transferred through the refrigerant hot water heat exchanger circulates to cool the refrigerant gas passing through the refrigerant hot water heat exchanger, and to the fluid outlet port of the liquid heat exchanger. And a refrigerant cooling heat exchanger having a dual structure of an external refrigerant circulation pipe connected to a bypass supply line and a bypass recovery line connected to the liquid separator inlet line, and the bypass supply line includes a refrigerant gas. A solenoid valve for opening and closing a supply and an auxiliary expansion valve for rapidly expanding a refrigerant gas are installed.

And the drying device using the freezing device of the present invention,

Compressor for compressing the refrigerant gas, the condenser condensing the refrigerant gas of high temperature and high pressure, expansion valve for rapidly expanding the condensed refrigerant, the evaporator for evaporating the expanded mist of the refrigerant evaporated from the condensation refrigerant and the evaporator conveyed from the condenser In the drying apparatus using a refrigerating device having a liquid heat exchanger configured to send only refrigerant gas evaporated as gas by exchanging refrigerant gas to a compressor,

The drying device,

A drying chamber having upper and lower inlets and outlets of the dried object;

A main heat exchanger fixedly installed at an upper portion of the drying chamber and installed to heat the inside of the drying chamber by the heat amount of the high-temperature refrigerant gas compressed by the compressor of the refrigerating device and transferred to the condenser;

A large diameter hollow shaft having a large diameter and a small diameter hollow shaft having a small diameter are formed in a double tube structure. A hot water heat exchange shaft rotatably supported by the bearing portion;

The hot water is supplied through one side of the large diameter hollow shaft of the hot water heat exchange shaft to circulate the hot water inside the hot water heat exchange shaft rotatably supported by the one side bearing portion of the drying chamber, and rotatably to the other bearing portion of the drying chamber. A hot water tank connected to the large diameter hollow shaft and the small diameter hollow shaft of the hot water heat exchange shaft through one side of the small diameter hollow shaft of the supported hot water heat exchange shaft to recover the hot water circulated inside the hot water heat exchange shaft;

A double wall member attached and formed in a double structure such that a hot water circulation space for storing and circulating hot water supplied from a hot water tank is formed outside the drying chamber to heat the inside of the drying chamber;

The lower part of the drying chamber is rotated inside the discharge passage so that the dry matter discharged through the outlet communicating with the inside of the drying chamber to be discharged to the discharge port of the discharge passage in order to discharge the dried object inside the drying chamber. A transfer screw which is installed to be possible;

A cold water circulation coil having an upper portion of the drying chamber to attach moisture to a circulation action of cold water supplied from a cold water tank in order to remove moisture (vapor) generated from the dried material which is stirred and dried therein;

Characterized in that configured to include.

In addition, the inside of the drying chamber is rotatably installed under the main heat exchanger is characterized in that the blowing fan for blowing the heat emitted from the main heat exchanger to be evenly distributed in the drying chamber.

According to the present invention, by using the heat of the refrigerant gas circulating in the refrigerating device to heat the dried material, such as food waste or busy in the drying chamber of the drying device, and at the same time as the heat of hot water heated by the heat of the refrigerant gas. By heating the dry matter, the dry matter can be dried efficiently, and in particular, a refrigeration apparatus that can be operated at a much lower cost than the conventional technology of drying food waste by using expensive oil as fuel or electric energy. Soybeans can be dried as a by-product of food waste or tofu food, so that food waste can be recycled as compost and organic fertilizers at low cost, and it can be recycled as vegetable feed and fertilizer as a by-product of tofu food. To provide an advantage.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A detailed embodiment of a drying system and a drying apparatus using a freezing apparatus according to the present invention will be described in detail with reference to the accompanying drawings.

1 is a circuit configuration diagram of a freezing device and a hot water and cold water tank for explaining the drying system of the present invention, Figure 2 is a cross-sectional view of the drying chamber for explaining the drying apparatus of the present invention, Figure 3 is a line AA of Figure 2 The cross section is shown.

Reference numeral 1 denotes a refrigerating device, wherein the refrigerating device 1 includes a condenser 12, a liquid heater 13, an expansion valve, an evaporator, etc., including a compressor 11 for compressing a refrigerant gas. The evaporator and the expansion valve will be described later.

The compressor outlet line 111 of the compressor 11 is provided with an oil separator 14 for separating oil from the refrigerant gas and a one-way check valve 15 for preventing a reverse flow of the refrigerant gas, respectively. The compressor outlet line 111 of the compressor 11 and the condenser inlet line 120 of the condenser 12 are connected by a main heat exchanger 2.

The compressor outlet line 111 of the compressor 11 is connected to one or more electric heater heaters 3 having an electric heater therein for heating the refrigerant gas compressed by the compressor 11 to a hotter temperature in series. It is. Therefore, the refrigerant gas compressed at a high temperature and high pressure in the compressor 11 has a hotter temperature in the process of passing through the electric heater heater 3, for example, the refrigerant gas compressed in the compressor 11 is one electric heater. Assuming that the temperature rises by 50 ° C each time through the hot air 3, two electric heater heaters 3 are installed in the compressor outlet line 111 as shown in FIG. 1 and the compressor 11 Assuming that the refrigerant gas compressed at high temperature and high pressure is heated to a hot temperature of 100 ° C., the temperature rises by 50 ° C. each time the refrigerant gas passes through one electric heater heater 3. The temperature of the refrigerant gas flowing into the main heat exchanger (2) via the electric heater heater (3) becomes a high temperature state of 200 ° C. so that the heat exchange operation can be made very active.

A feature of the present invention is to repeatedly circulate the main heat exchanger (2) and the refrigerating device (1) in which the refrigerant gas heated to a hotter temperature is circulated by the one or more electric heater heaters (3) as described above. The inside of the drying chamber 4 for drying dry matters such as food waste or bean curd with the hot water heat exchange shaft 5 through which hot water of the refrigerant gas is recovered to circulate hot water, and the cold water circulation coil 6 through which cold water circulates. It is attached to the.

To this end, the hot water heat exchange shaft 5 has a large diameter hollow shaft 51 having a large diameter and a small diameter hollow shaft 52 having a small diameter in a double pipe structure, that is, a small diameter hollow shaft 52 inside the large diameter hollow shaft 51. The hot water heat exchange shaft 5 is rotatably supported by bearings on both side bearing parts 41 and 42 formed on both sides of the drying chamber 4. That is, the large diameter hollow shaft 51 of the hot water heat exchange shaft 5 is supported on one side (right side in the drawing) of the drying chamber 4, and the other side (left side in the drawing) of the drying chamber 4 is supported. The small diameter hollow shaft 52 of the hot water heat exchange shaft 5 is supported by the bearing part 42.

The large diameter hollow shaft 51 of the hot water heat exchange shaft 5 has a plurality of stirring tubes 53 protruded at an equidistant state from each other at regular intervals, and inside each of the stirring tubes 53 is a small diameter. Insertion tube 54 is connected to the hollow shaft 52 is formed to protrude, the end of each of the stirring tube (53) is blocked by the stirring bit 55 detachably assembled, while the insertion tube ( The ends of each of the 54 are open to communicate with the inside of each stirring tube 53.

In addition, one end of the hot water heat exchange shaft (5), that is, the right side of the large diameter hollow shaft (51) rotatably supported by one side bearing portion (41) of the drying chamber (4) (not shown) On the other hand, the hot water supply line 56 is connected to receive hot water supplied from the hot water tank 50 in a state rotatably supported by), while the left end of the large diameter hollow shaft 51 is provided (based on the drawings). ) Is blocked. In addition, the other end of the hot water heat exchange shaft 5, that is, the left end of the small-diameter hollow shaft 52 rotatably supported by the other bearing portion 42 of the drying chamber 4 (a reference to the drawing) is also a mechanical seal (not shown). While the hot water recovery line 57 is connected so that the hot water that has completed the circulation in the hot water heat exchange shaft 5 in the state rotatably supported by the hot water heat exchange shaft 5 can be recovered to the hot water tank 50, The left end (standard drawing) of the small diameter hollow shaft 51 is blocked.

In addition, the hot water heat exchange shaft 5 configured as described above is configured to rotate by receiving rotational power from the first motor 58 (see FIG. 2).

In addition, an upper portion of the drying chamber 4 is formed with an inlet 43 for injecting a dry object, and a lower portion of the drying chamber 4 has a discharge port 44 for discharging the dried object. The lower portion of the (4) is provided with a conveying screw 46 inside the discharge passage 45 formed to be connected to the discharge port 44 to transfer the discharged object discharged through the discharge port 44 toward the discharge port 47 to discharge. It is configured to.

The transfer screw 46 is configured to rotate by receiving the rotational power of the second motor 48 (see FIG. 2).

On the other hand, directly below the main heat exchanger (2) installed above the drying chamber (4) a blowing fan that blows to distribute and spread the heat emitted from the main heat exchanger (2) evenly into the drying chamber (4) 49 is rotatably installed, and the blowing fan 49 is configured to rotate by receiving the rotational force of the third motor 49a. (See FIG. 2).

One or more refrigerant hot water heat exchangers (7) are installed in the condenser inlet line (120) connecting the main heat exchanger (2) and the condenser (12). The refrigerant circulation tube 71 and the hot water circulation tube 72 are formed in a double tube structure.

That is, the cold water circulation tube 71 of the refrigerant hot water heat exchanger 7 is formed therein, and the hot water circulation tube 72 is formed outside to surround the refrigerant circulation tube 71.

As described above, the refrigerant circulation pipes 71 formed in each of the refrigerant hot water heat exchanger 7 installed in at least one of the condenser inlet lines 120 may sequentially pass through the refrigerant gas via the main heat exchanger 2. While being connected in series so as to be transported to the condenser 12, each of the hot water circulation pipes 72 formed to surround each of the plurality of refrigerant circulation pipes 71 is connected to the hot water supply line 56, the hot water pump The hot water pumped by 56a is connected in series so as to be supplied to the hot water heat exchange shaft 5 while sequentially circulating. Thus, a plurality of refrigerant hot water heat exchangers installed in at least one condenser inlet line 120 are provided. The refrigerant gas circulating in the refrigerant circulation tube 71 of the gas 7 and the hot water circulating in the hot water circulation tube 72 flow in opposite directions to perform heat exchange. Therefore, the heat exchange action of the refrigerant gas and hot water is efficiently performed (see FIG. 1).

In addition, the drying chamber (4) is attached to the double wall member (4a) in a double structure on the outer periphery of the drying chamber (4) in order to promote the drying operation of the dried object stirred by the rotation operation of the hot water heat exchange shaft (5) A hot water circulation space 40 is formed, and an auxiliary hot water supply line 59 is connected to the double wall member 4a to supply hot water from the hot water supply line 56 to the hot water circulation space 40.

In the condenser inlet line 120, a refrigerant cooling heat exchanger 8 is installed between the refrigerant hot water heat exchanger 7 and the condenser 12, and the refrigerant cooling heat exchanger 8 includes internal and external refrigerants. The circulation pipes 81 and 82 are formed in a double pipe structure, and the internal refrigerant circulation pipe 81 circulates refrigerant gas transferred from the refrigerant hot water heat exchanger 7 to the condenser 12, and the external refrigerant. The circulation pipe 82 is supplied to the bypass supply line 83 connected to the fluid outlet port 131 of the fluid receiver 13a of the fluid heater 13 and rapidly expanded by the auxiliary expansion valve 84. The refrigerant gas of the circulation is circulated. As described above, the refrigerant gas in the fog state circulating in the external refrigerant circulation pipe 82 is evaporated by taking heat from the refrigerant gas circulating in the internal refrigerant circulation pipe 81 and bypass recovery line 85. It is conveyed to the liquid separator (13b) of the liquid heater (13) through.

In other words, the refrigerant gas circulating in the internal refrigerant circulation pipe 81 is transferred to the condenser 12 in a cooled state by heat exchange with the external refrigerant circulation pipe 82.

In addition, the bypass supply line 83 is provided with a solenoid valve 86 for opening and closing the supply of the refrigerant gas.

On the other hand, the evaporator of the refrigerating device (1) is divided into an internal evaporator (9a) and an external evaporator (9b) is configured to perform a heat exchange action, the internal evaporator (9a) to supply cold water to the cold water circulation coil (6). It is mounted inside the cold water tank 60 to cool the cold water by the heat exchange action with the cold water stored in the cold water tank 60, the external evaporator (9b) is installed in the air to cool the refrigerant by the heat exchange action with the atmosphere Evaporated.

Each of the inner and outer evaporator inlet lines 91a and 91b of the inner and outer evaporators 9a and 9b is connected to the fluid outlet line 131, respectively, and the inner and outer evaporator outlet lines 92a and 92b. Each is connected to the liquid separator inlet line 130, and expansion valves 93a, 93b and solenoid valves 94a and 94b are respectively installed in the inner and outer evaporator inlet lines 91a and 91b. It is.

On the other hand, the cold water cooled by the heat exchange action of the internal evaporator 9a mounted inside the cold water tank 60 is pumped by the cold water pump 61 and inside the drying chamber 4 through the cold water supply line 62. After being supplied to the installed cold water circulation coil 6 and circulating, the action of being recovered to the cold water tank 60 through the cold water recovery line 63 is repeated, and a drying chamber 4 is disposed at the bottom of the cold water circulation coil 6. The drain chute 64 is fixedly installed for discharging the water droplets that are generated inside the condensation to the cold water circulation coil 6 and discharged to the outside of the drying chamber 4.

The operation of the present invention configured as described above will be described.

In order to start the drying operation of the dried object introduced through the inlet 43 of the drying chamber 4, first, the internal evaporator inlet line 91a for operating the internal evaporator 9a mounted in the cold water tank 60; The solenoid valve 94a installed in the automatic opening operation, while the solenoid valve 94b installed in the external evaporator inlet line 91b operates the refrigerating device 1 in a state of being automatically closed.

The refrigerant gas compressed at high temperature and high pressure in the compressor 11 of the refrigerating device 1 is separated from the oil in the oil separator 14, and at least one electric heater heater 3 installed in series in the extruder outlet line 111. Refrigerant gas heated to the hot temperature set by the electric heater in the course of passing through) is supplied to the main heat exchanger (2) installed in the drying chamber (4) to release hot heat, wherein the main heat exchanger (2) Blowing fan (49) rotates directly underneath to disperse and blow the hot heat discharged from the main heat exchanger (2) evenly into the drying chamber (4), and thus the hot heat evenly blown into the drying chamber (4) By this, the to-be-dried material to be dried by each stirring tube 53 which protrudes by a predetermined interval on the hot water heat exchange shaft 5 which rotates by the rotational power of the 1st motor 58 is dried.

In addition, the refrigerant gas delivered to the condenser 12 and the hot water supplied to the hot water tank 50 via the main heat exchanger 2 are connected to the condenser inlet line 120 at least one refrigerant hot water heat exchanger (7). In the process of circulating each refrigerant circulation tube 71 and each hot water circulation tube 72 of the heat exchange action to each other, wherein the refrigerant gas circulating each refrigerant circulation tube 71 of the refrigerant hot water heat exchanger (7) While the hot water is cooled by the heat exchange action with the hot water is transferred to the condenser 12, the hot water circulating each hot water circulation pipe 72 of the refrigerant hot water heat exchanger 7 is heated by the heat exchange action with the refrigerant gas, the hot water heat exchange shaft (5) and the hot water circulation space 40, respectively, the hot water heat exchange shaft (5) that the hot water is circulated supply is heated and dried while stirring the dry matter in the rotation operation, and also supplied to the hot water storage space (40) The hot water circulating in the drying chamber 4 Since the drying chamber (4) is to dry the dry matter by the heat discharged from the heat released from the main heat exchanger (2) and the hot water heat exchange shaft (5) and the drying chamber (4) to dry the dried object It will work smoothly.

On the other hand, the dried material that is added and stirred inside the drying chamber 4 has a large amount of moisture, and thus a large amount of moisture (water vapor) is generated during heat drying. In this case, the cold water circulation installed in the upper portion of the drying chamber 4 Cold water is circulated in the coil 6. Therefore, the water vapor generated during the drying drying of the dried object in the drying chamber 4 is attached to the cold water circulation coil 6 and condensed into water droplets, falling into the drain chute 64 and being discharged to the outside of the drying chamber 4 to dry. Since the water vapor generated inside the chamber 4 is quickly removed, it is possible to shorten the drying time of the object to be dried.

As described above, when the internal evaporator 9a of the refrigerating device 1 is operated, the refrigerant gas in the mist state supplied to the internal evaporator 9a is deprived of heat from the cold water stored in the cold water tank 60. Since 9a) is normally operated, the cold water circulation coil 6 installed at the upper portion of the drying chamber 4 normally performs dehumidification, and the refrigerant gas in the mist state circulating in the internal evaporator 9a is performed. When the circulating the cold water circulation coil (6) is unable to recover the heat from the cold water recovered in the cold water tank (60), the refrigeration unit (1) does not operate normally, in this case the internal evaporator inlet line When the solenoid valve 94a installed in 91a is automatically closed and the solenoid valve 94b installed in the external evaporator inlet line 91b is automatically opened, the receiver The refrigerant gas supplied to the outlet line 131 is supplied to the external evaporator 9b to exchange heat with the atmosphere, thereby allowing the refrigeration apparatus 1 to operate normally.

Meanwhile, after passing through the refrigerant hot water heat exchanger 7 which is connected to at least one of the condenser inlet lines 120 in sequence, the internal refrigerant circulation pipe 81 of the refrigerant cooling heat exchanger 8 is transferred to the condenser 12. When the transferred refrigerant gas is not cooled to the proper temperature in the refrigerant hot water heat exchanger 7, the condenser 12 may not operate normally, which may cause a failure of the refrigerating device 1. Therefore, when the refrigerant gas transferred to the condenser 12 is not cooled to an appropriate temperature, the solenoid valve 86 installed in the bypass supply line 83 is automatically opened to transfer the refrigerant gas to the fluid outlet line 131. A part of the secondary expansion valve 84 is rapidly expanded to be supplied to the external refrigerant circulation pipe 82, and thus the external refrigerant circulation pipe to which the refrigerant gas in a rapidly expanded fog state is supplied from the auxiliary expansion valve 84 ( 82 acts as an evaporator to cool the refrigerant gas circulating in the internal refrigerant circulation tube 81. Accordingly, the condenser 12 is supplied with a refrigerant cooled to an appropriate temperature so that the condenser 12 operates normally. In addition, it is transferred to the refrigerant cooling heat exchanger (8) via the refrigerant circulation pipe (71) of the refrigerant hot water heat exchanger (7) installed at least one connected to the condenser inlet line (120). When the refrigerant gas is cooled to an appropriate temperature, the solenoid valve 86 installed in the bypass supply line 93 is automatically closed, so that the fluid outlet from the receiver 13a of the liquid heater 13 is closed. Since the refrigerant gas transferred to the phosphorus 131 is supplied to the internal evaporator 9a or the external evaporator 9b without being transferred to the bypass supply line 83, the refrigerating device 1 is normally operated.

1 is a circuit diagram of a refrigerator and hot water and cold water tanks for explaining the drying system of the present invention.

Figure 2 is a cross-sectional view of the drying chamber for explaining the drying apparatus of the present invention.

3 is a cross-sectional view taken along the line A-A of FIG.

※ Explanation of code for main part of drawing

1 refrigeration unit 11 compressor

12 condenser 13 liquid heater

13a: receiver 13b: liquid separator

14: oil separator 15: one-way check valve

2: main heat exchanger 3: electric heater heater

4: dry chapter 41, 42: bearings on both sides

42: inlet 44: outlet

45: discharge passage 46: transfer screw

47: discharge port 48: the second motor

49: blowing fan 49a: third motor

5: hot water heat exchanger 50: hot water tank

51: large diameter hollow shaft 52: small diameter hollow shaft

53: stirring tube 54: insertion tube

56: hot water supply line 57: hot water recovery line

58: first motor 59: auxiliary hot water supply line

6: cold water circulation coil 60: cold water tank

61: cold water supply line 63: cold water recovery line

7: refrigerant hot water heat exchanger 71: refrigerant circulation tube

72: hot water circulation tube 8: heat exchanger for cooling the refrigerant

81: internal refrigerant circulation tube 82: external refrigerant circulation tube

84: auxiliary expansion valve 86: solenoid valve

9a: internal evaporator 9b: external evaporator

91a: Internal evaporator inlet line 91b: External evaporator inlet line

92a: Internal evaporator exit line 92b: External evaporator exit line

93a: internal expansion valve 93b: external expansion valve

94a, 94b: Solenoid Valve

Claims (6)

Compressor for compressing the refrigerant gas, the condenser condensing the refrigerant gas of high temperature and high pressure, expansion valve for rapidly expanding the condensed refrigerant, the evaporator for evaporating the expanded mist of the refrigerant evaporated from the condensation refrigerant and the evaporator conveyed from the condenser In a drying system using a refrigerating device having a liquid heat exchanger configured to heat the refrigerant gas and send only the refrigerant gas evaporated as gas to the compressor, A drying chamber equipped with a main heat exchanger for drying the dried item by heat exchange of refrigerant gas compressed and circulated by the compressor to dry the dried item; A hot water heat exchange shaft mounted inside the drying chamber together with the main heat exchanger, and drying the dry items introduced into the drying chamber by using heat quantity of hot water supplied and circulated from the hot water tank; It is mounted inside the drying chamber to remove moisture (vapor) generated from the dried material heated by the main heat exchanger and the hot water heat exchange shaft, and when the dried material is dried using cold water supplied from a cold water tank. Cold water circulation coil to attach the generated moisture; Internal and external evaporators, each of which is installed separately from the inside and outside of the cold water tank; In order to supply the refrigerant gas transferred to the fluid outlet port of the liquid heater to any one of the internal and external evaporators, a solenoid valve installed to open and close to each other is installed one by one, and an expansion valve is provided. An internal and external evaporator inlet line installed one by one; In order to transfer the refrigerant gas discharged from the internal and external evaporators to the liquid separator through the liquid separator inlet line of the liquid heater, each of the internal and external evaporator outlets is provided with a solenoid valve installed to open and close oppositely. line; Drying system using a refrigeration apparatus, characterized in that configured to include. The method of claim 1, And a compressor outlet line connecting the compressor and the main heat exchanger mounted to the drying chamber, wherein at least one electric heater heater equipped with an electric heater is connected in series. The method of claim 1, The condenser inlet line connecting the main heat exchanger and the condenser mounted on the drying chamber is formed with a hot water circulation tube installed to circulate the hot water supplied from the hot water tank, and the hot water circulation tube to pass through the main heat exchanger. A drying system using a refrigerating device, characterized in that one or more refrigerant hot water heat exchangers each having a refrigerant circulation pipe installed to circulate the refrigerant gas to be circulated are connected in series. The method of claim 1, The inlet line of the condenser has an internal refrigerant circulation pipe through which the refrigerant gas transferred through the refrigerant hot water heat exchanger circulates to cool the refrigerant gas passing through the refrigerant hot water heat exchanger, and a bypass connected to the fluid outlet port of the liquid heater. A refrigerant cooling heat exchanger having a dual structure is provided with an external refrigerant circulation pipe connected to a supply line and a bypass recovery line connected to the liquid separator inlet line, and the bypass supply line supplies a supply of refrigerant gas. A drying system using a refrigerating device, characterized in that the solenoid valve to open and close and the auxiliary expansion valve for rapidly expanding the refrigerant gas is installed. Compressor for compressing the refrigerant gas, condenser condensing the refrigerant gas of high temperature and high pressure, expansion valve for rapidly expanding the condensed refrigerant, evaporator for evaporating the expanded mist of refrigerant evaporated from the condensation refrigerant and the evaporator conveyed from the condenser In the drying apparatus using a refrigerating device having a liquid heat exchanger configured to heat the refrigerant gas to send only the refrigerant gas evaporated to the gas to the compressor, The drying device, A drying chamber having upper and lower inlets and outlets of the dried object; A main heat exchanger fixedly installed at an upper portion of the drying chamber and installed to heat the inside of the drying chamber by the heat amount of the high-temperature refrigerant gas compressed by the compressor of the refrigerating device and transferred to the condenser; A large diameter hollow shaft having a large diameter and a small diameter hollow shaft having a small diameter are formed in a double tube structure. A hot water heat exchange shaft rotatably supported by the bearing portion; The hot water is supplied through one side of the large diameter hollow shaft of the hot water heat exchange shaft to circulate the hot water inside the hot water heat exchange shaft rotatably supported by the one side bearing portion of the drying chamber, and rotatably to the other bearing portion of the drying chamber. A hot water tank connected to the large diameter hollow shaft and the small diameter hollow shaft of the hot water heat exchange shaft through one side of the small diameter hollow shaft of the supported hot water heat exchange shaft to recover the hot water circulated inside the hot water heat exchange shaft; A double wall member attached and formed in a double structure such that a hot water circulation space for storing and circulating hot water supplied from a hot water tank is formed outside the drying chamber to heat the inside of the drying chamber; The lower portion of the drying chamber is rotatable in the discharge passage to transfer the discharged to the discharge port of the discharge passage through the discharge port communicating with the inside of the drying chamber in order to discharge the dried object inside the drying chamber A transfer screw that is installed therein; A cold water circulation coil having an upper portion of the drying chamber to attach moisture to a circulation action of cold water supplied from a cold water tank in order to remove moisture (vapor) generated from the dried material which is stirred and dried therein; Drying apparatus using a freezing device, characterized in that configured to include. The method of claim 5, wherein Drying apparatus using a refrigerating device is formed inside the drying chamber rotatably installed directly below the main heat exchanger to blow the heat emitted from the main heat exchanger to be evenly distributed in the drying chamber. .

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