KR101194790B1 - Multipurpose drying apparatus having improved drying efficiency - Google Patents

Abstract

The present invention relates to a multi-purpose drying apparatus using a heat pump system and a heat transfer system unit, according to an aspect of the present invention, a dry matter inlet is formed on one side, a dry matter outlet is formed on the other side, and there is a difference between the dry matter inlet and the dry outlet. A drying body having a drying chamber formed thereon and an air circulation path communicating with one side and the other side of the drying chamber, and an evaporator and a condenser installed in the air circulation path of the drying body, respectively, between the evaporator and the condenser. A heat pump system having an expansion valve installed between the compressor and the condenser and the evaporator for compressing to expand the working fluid from the condenser, and installed in the air circulation path and connected to the evaporator and the condenser to heat the air introduced through the air circulation path. Comprising a heat transfer system section for cooling The multi-purpose drying apparatus is enhanced drying efficiency as claimed is provided.

Drying device, heat pump system, dry material conveying member, heat transfer system part, dry material input device, dry product discharge device

Description

Multipurpose Drying Equipment with Improved Drying Efficiency {MULTIPURPOSE DRYING APPARATUS HAVING IMPROVED DRYING EFFICIENCY}

The present invention relates to a drying apparatus, and more particularly, to improve drying efficiency by using a heat pump system and a heat transfer system unit, and to prevent internal air circulation of drying air by preventing inflow and outflow of wet air during inflow and outflow of dry matter. The present invention relates to a multi-purpose drying apparatus that improves environmental friendliness and drying efficiency by minimizing external leakage of gases, dust, and odor generated during drying.

With the increase and concentration of population due to industrialization, the discharge of various kinds of household waste and food waste is increasing rapidly. In addition, food waste or organic waste contains a large amount of water, which is not only difficult to process due to the weight increase due to the moisture contained in the waste, but also decay over time to generate a bad odor and include many pathogens It is a cause of environmental pollution. In addition, when incinerated in this state, environmentally harmful substances may be generated, and even in the case of landfill, it causes soil contamination, so the treatment is very difficult.

Various types of drying apparatuses are used as part of the waste disposal, and the drying apparatus includes a device for discharging food or agricultural and aquatic products after drying by using heat exchange in a heat pump system.

The drying system using the heat pump dehumidifies the humid air absorbed by the dry matter in the drying chamber by condensation in the evaporator of the heat pump and then reheats it by heat radiated from the condenser to make air with low relative humidity to supply it to the drying chamber. It is a system for drying by repeatedly performing the action of absorbing moisture from the object to be dried.

The drying system using a conventional heat pump heats and cools circulating air using 100% refrigerant, so that the capacity of the heat pump system is increased in order to sufficiently heat and cool the circulating air so that a sufficient amount of dehumidification is achieved. There is an increasing problem.

In addition, when the dry type is continuously inserted and discharged in the closed drying device, proper air is not sealed and outdoor air flows in, which causes the dehumidification ability to drop significantly, and internal drying air leaks to the outside, which causes gas, dust, odor, etc. There is a problem of polluting the environment. Furthermore, there is a disadvantage in that drying efficiency is lowered due to leakage of circulation force and loss of heat due to leakage due to the closing and closing of the dry matter.

The present invention has been made to solve the problems described above, an embodiment of the present invention by using the heat pump system and the heat transfer system to reduce the energy and improve the drying efficiency as well as the inflow and discharge of the dry matter The present invention relates to a multi-purpose drying device with improved drying efficiency that prevents the flow of wet air in the process and facilitates the circulation of the dry air.

In a preferred embodiment of the present invention, a dry matter inlet is formed on one side, a dry matter outlet is formed on the other side, and a drying chamber is formed between the dry matter inlet and the dry outlet, and an air circulation path is formed in communication with one side and the other side of the dry chamber, respectively. An evaporator and a condenser installed in the air main passage of the dry body, respectively, are installed between the compressor and the condenser and the evaporator installed between the evaporator and the condenser to compress the working fluid from the evaporator to expand the working fluid from the condenser. Multi-purpose, characterized in that the heat pump system is provided with an expansion valve, and installed in the air circulation path and connected to the evaporator and condenser heat transfer system for heating and cooling the air introduced through the air circulation path Provide a drying device.

According to an embodiment of the present invention as described above, first, by using a heat pump system and a heat transfer system unit to protect the environment, improve the drying efficiency by lowering the manufacturing cost and energy consumption, and the process of inflow and discharge of the dry matter. It is possible to provide a multi-purpose drying device with improved drying efficiency by preventing the flow of wet air to smooth the circulation of the dry air.

Second, the dry matter can be efficiently transported by the dry matter transport member installed inside the drying chamber.

Third, it is possible to improve the dehumidification efficiency by blocking the inflow of outdoor air during the input of the dry object by the dry object input device installed in the dry object inlet.

Fourth, it is possible to close the discharge port by the dry discharge device installed in the dry product discharge port, it is possible to prevent a decrease in circulation force due to leakage, external leakage of the smell of the dry product and heat loss.

Fifth, the dry matter can be automatically discharged by the opening and closing detecting means installed in any one of the dry matter or the rotating plate.

Sixth, the to-be-dried material can be efficiently conveyed by the inclination conveyor provided in the inclination plate installed in the to-be-dried object opening, and a drying chamber.

Seventh, it is possible to transfer the heat absorbed from the front end of the evaporator of the heat transfer system to the front end of the condenser using the heat transfer system to reduce the energy and manufacturing costs required for drying.

Eighth, since the heat transfer system unit is circulated using the gradient of the connection pipe, a separate power source is not required and energy and manufacturing cost can be reduced.

1 is a circuit diagram showing a multi-purpose drying apparatus with improved drying efficiency according to an embodiment of the present invention, Figure 2 is a heat pump system and a heat transfer system unit employed in the multi-purpose drying apparatus with improved drying efficiency shown in FIG. 3 is an operation flowchart, FIG. 3 is an operation flowchart of the heat transfer system unit employed in the multi-purpose drying apparatus having improved drying efficiency, FIG. 4 is a modified embodiment of the heat transfer system unit shown in FIG. 1 is a flow chart showing the air circulation flow of the multi-purpose drying apparatus with improved drying efficiency, Figure 6 is a side view showing a dry matter input device employed in the multi-purpose drying apparatus with improved drying efficiency shown in FIG. 6 is a state diagram of use of the dried object input device shown in FIG. 6, and FIG. 8 is a side of the dried product discharge device employed in the multipurpose drying device having improved drying efficiency shown in FIG. 1. And Fig, 9 is a using state diagram of a dry item discharging device shown in Figure 8, Figure 10 is a structural view of a heat exchange with the condenser and the evaporator employed in the multi-purpose drying apparatus is improved drying efficiency shown in Fig.

The multipurpose drying apparatus 1 having improved drying efficiency according to a preferred embodiment of the present invention includes a drying body 10, a dry object transport member 20, a heat pump system 30, a heat transfer system unit 50, and a dry object. Injecting device 60, the object to be discharged device 70 is included.

The dry body 10 is a dry object 100 to be dried is introduced and discharged to be carried out to dry, as shown in Figure 1, the dry object is formed on the upper side of the dry body 10, the inclined plate 11a is formed An inlet 11 is formed, and the other side is a dry product outlet 12 having a discharge hole 12a (see FIG. 7). As shown in FIG. 1, a drying chamber 13 having at least one inclined plate 13a is formed between the dry object inlet 11 and the dry object outlet 12, and one side of the drying chamber 13 has an air circulation path ( 14) is formed. As shown in FIG. 1, the air circulation path 14 communicates with the upper side of the drying chamber 13 and the other side communicates with the lower side of the drying chamber 13. At least one circulation motor 15 is installed at one side of the air circulation path 14 so that air flowing through the condenser 32 to be described later is smoothly circulated.

The dry matter transporting member 20 is dried by transporting the dry matter 100 such that the dry matter 100 introduced through the dry matter inlet 11 is smoothly discharged to the dry matter outlet 12 as shown in FIG. 1. At least two or more are preferably installed in the drying chamber 13 to reduce the size of the main body 10 and facilitate the drying.

The dry transfer member 20 is preferably using a conveyor, it is preferable to install in a zigzag as shown in Figure 1 when a plurality is installed. In addition, it is preferable to use a conveyor belt made of a wire mesh so that air flows in the conveyor installed at the bottom of the object to be discharged, and the remaining conveyors use a sealed conveyor belt so that air does not flow.

The heat pump system 30 cools and heats air to dry the dried object 100 introduced into the drying chamber 13, and basically the air circulation path 14 of the drying body 10 as shown in FIG. 1. Installed in the evaporator 31 and spaced apart from the evaporator 31 in the air circulation path 14 of the drying body 10 and the evaporator 31 which makes the dried air through the drying chamber 13 to a low temperature and low pressure state capable of dehumidification. And a condenser 32 for heating the air introduced by dehumidification and dehumidification through the evaporator 31, a compressor 33 for compressing the working fluid introduced through the evaporator 31, and discharged through the condenser 32. The working fluid is provided with an expansion valve 34 and a flow path 35 for connecting the basic configuration of the above-described heat pump system 30 as shown in FIGS.

A liquid separator 36 and a low pressure switch 37 are installed between the evaporator 31 and the compressor 33, and a high pressure switch 38 is provided between the compressor 33 and the condenser 32. And the oil separator 39 is installed, and the main valve 40, the receiver 41, the filter drier 42, the stop valve 43, and the working fluid are normally disposed between the condenser 32 and the expansion valve 34. Sight glass 44 and the like are installed to check whether the water is flowing in the direction. An auxiliary condenser 45 may be further installed between the condenser 32 and the receiver 41, and the auxiliary condenser 45 is preferably opened by an auxiliary valve 46 such as a check valve or a solenoid valve. The working fluid is supplied and operated.

As shown in FIG. 1, the differential pressure switch 47 is installed in the drying body 10, and a defrost valve 48 is installed in the flow path 35 of the heat pump system. The differential pressure switch 47 is configured to detect the pressure of the inlet and the outlet of the evaporator 31. If there is no freezing, the differential pressure at the inlet and the outlet of the evaporator 31 is small, and if there is freezing, the differential pressure is increased. The differential pressure is used to operate the differential pressure switch 47 and the defrost valve 48 operates in conjunction with the differential pressure. To be done. When the defrost valve 48 is opened, hot gas is supplied and defrosting is performed.

As the working fluid of the heat pump system 30, it is preferable to use any one of water, cooling water, or brine, which is a material having a unit heat capacity larger than that of the refrigerant. Also, the heat transfer system unit 50, 50 ′, which will be described later, When used, the design capacity of the heat pump system 30 can be significantly reduced, thereby minimizing the manufacturing cost and reducing the drying energy.

The heat transfer system unit 50 is installed in the air circulation path 14 as shown in FIG. 1 and heats and cools the air introduced with the heat pump system 30. As shown in FIG. 31, the heat absorption heat exchanger (51) installed inside the condenser (32), the heat absorption heat exchanger (52), the heat absorption heat exchanger (51) and the heat dissipation heat exchanger (52). A connecting pipe 53 to be connected, a circulation pump 54 installed in the connecting pipe 53 to smoothly move the fluid from the heat absorption heat exchanger 51 to the heat dissipating heat exchanger 52, and the connecting pipe 53 It is connected to and is composed of a supplementary port 55 for replenishing the antifreeze.

The heat transfer system unit 50 is inclined to the connection pipe 53 without using the circulation pump 54 as shown in FIG. 4 to heat pipe system (hereinafter, the heat transfer system unit shown in FIG. (Also known as a system). The modified heat transfer system unit 50 ′ is a heat absorption heat exchanger 51 ′ installed in the evaporator 31 and a heat dissipation heat exchanger installed in the condenser 32, as shown in FIG. 4. Group 52 ', the heat absorption heat exchanger 51' and the heat dissipation heat exchanger 52 'are connected to each other, and are formed of a connection pipe 53' formed to be inclined in opposite directions.

Specifically, the connecting pipe 53 'connected to the upper side has a slope of the connecting pipe 53' positioned in the heat dissipation heat exchanger 52 'as shown in FIG. 4 and the connecting pipe 53' located in the heat absorption heat exchanger 51 '. It is preferable that the inclination is formed higher than 53 ', and the connecting pipe 53' positioned at the lower side is formed opposite to the connecting pipe 53 'at the upper side so that the heat pipe system operates smoothly. This allows the free circulation of the working fluid by the gradient of the connecting pipe 53 ', which does not require a separate power.

6, a pair of the input device 60 is preferably installed spaced apart in the up and down direction, and the input device body 61 rotatably installed in the drying body 10, as shown in FIG. ), And at least one rotary blade 62 formed in the input device body 61.

The dry input device 60 is preferably installed so that the rotary blades 62 are crossed as shown in Figure 6, in this case, when the dry object 100 is injected as shown in FIG. The dehumidification efficiency can be improved by preventing the inflow of air. In addition, there is an advantage that the circulation of the dry air can be smoothed by preventing the inflow and outflow of the wet air introduced or discharged into the dry object inlet (11).

The dry matter discharge device 70 is installed in the dry matter outlet 12 of the drying body 10 as shown in FIGS. 1 and 8, and the discharge cylinder 71 installed at the bottom of the dry matter outlet 12. The lower side is coupled to the discharge cylinder 71 is moved up and down, and the discharge main body 72a is formed so that the dry object 100 is discharged to the discharge hole 12a of the drying body 10 on one side and the drying body on the lower side An exhaust body 72 having a stocker 72b for sealing the discharge hole 12a of the discharge hole 12a, a pivot plate 73 rotatably coupled to an upper side of the discharge body 72, and one side of the discharge body 12b. It is fixed to the 72 and the other side is composed of a rotation cylinder 74 is connected to the rotation plate 73, and the opening and closing detection means installed in at least one of the discharge outlet 12 or the rotation plate (73).

The opening and closing detecting unit 75 is a pressure sensor or an infrared position sensor for recognizing the weight of the object 100 to be loaded on the rotating plate 73, the rotation plate 73 and the discharge body 72 by a period of time Preference is given to using known switches and the like which are staggered to operate.

An operating state of the dry matter discharge device 70 will be described with reference to FIG. 9. First, the dried object 100 is stored in the rotating plate 73 as shown in FIG. 9, and when the appropriate amount is stored in the rotating plate 73, the opening / closing detecting unit 75 recognizes this and controls (not shown). ), And the control unit operates the rotation cylinder 74 by this signal. When the rotation cylinder 74 is operated, the dried to-be-dried object 100 falls to an upper portion of the discharge main body 72 as shown in FIG. 9, and the control unit operates the discharge cylinder 71 to lower the discharge main body 72. do. Since the bottom of the discharge body 72 is inclined, the dry object 100 loaded in the discharge main body 72 passes through the discharge main body hole 72a and is discharged through the discharge hole 12a of the dry object discharge port 12. do.

According to the above-described dry matter discharge apparatus 70, the dry matter discharge port 12 can be efficiently sealed, thereby preventing circulation loss and heat loss caused by leakage, thereby maximizing drying ability.

As the present invention can be variously modified by those skilled in the art without departing from the scope of the claims, the technical protection scope of the present invention is not limited to the specific preferred embodiments described above. Do not.

1 is a circuit diagram showing a multi-purpose drying apparatus with improved drying efficiency according to an embodiment of the present invention,

2 is an operation flowchart of a heat pump system and a heat transfer system unit employed in the multipurpose drying apparatus having improved drying efficiency shown in FIG. 1;

3 is an operation flowchart of a heat transfer system unit employed in the multipurpose drying apparatus having improved drying efficiency shown in FIG. 1;

4 is a modified embodiment of the heat transfer system unit shown in FIG.

5 is a flow chart showing the air circulation flow of the multi-purpose drying apparatus with improved drying efficiency shown in FIG.

Figure 6 is a side view showing a dry matter input device employed in the multi-purpose drying apparatus improved drying efficiency shown in FIG.

FIG. 7 is a state diagram of use of the dried object input device shown in FIG. 6;

8 is a side view of the dry matter discharge apparatus employed in the multi-purpose drying apparatus improved in the drying efficiency shown in FIG.

9 is a state diagram of use of the dry matter discharge apparatus shown in FIG.

10 is a heat exchange structure diagram of a condenser and an evaporator employed in the multipurpose drying apparatus having improved drying efficiency shown in FIG. 1.

Description of the Related Art [0002]

1: Multi purpose drying device with improved drying efficiency 10: Drying body

11: input of the object to be inserted 11a: input slope plate

12: dry matter discharge port 12a: discharge hole

13: drying chamber 13a: inclined plate

14: air circulation path 15: circulation motor

20: transfer member 30: heat pump system

31: evaporator 32: condenser

33 compressor 34 expansion valve

35: Euro 36: liquid separator

37: low pressure switch 38: high pressure switch

39: oil separator 40: main valve

41: receiver 42: filter drier

43: stop valve 44: sight glass

45: auxiliary condenser 46: auxiliary valve

47: differential pressure switch 48: defrost valve

50'50 ': heat transfer system 51,51': heat absorption heat exchanger

52,52 ': Heat release heat exchanger 53,53': Connecting pipe

54: circulation pump 55: refill port

60: dry matter input device 61: the input device body

62: rotary blade 70: dry matter discharge device

71: discharge cylinder 72: discharge body

72a: exhaust body hole 72b: stocker

73: rotating plate 74: rotating cylinder

75: opening and closing detection means 100: dry matter

Claims (11)

A dry matter inlet is formed on one side, and a dry matter injector having a rotor blade which is formed to be spaced apart from the injector body which is rotatably installed in the dry matter inlet and the injector body is provided, and the dry matter on the other side. A drying body having an outlet, a drying chamber formed between the dry object inlet and the dry object outlet, and an air circulation path communicating with one side and the other side of the drying chamber, respectively; An evaporator and a condenser respectively installed in the air circulation path of the dry body, a compressor installed between the evaporator and the condenser and compressing the working fluid from the evaporator, and a working fluid coming out of the condenser between the condenser and the evaporator. A heat pump system having an expansion valve for expanding; And And a heat transfer system unit installed in the air circulation path and connected to the evaporator and the condenser to heat and cool the air introduced through the air circulation path. The method of claim 1, At least two dry matter transporting members are installed in the drying chamber to allow the dry matter introduced through the dry matter inlet to be moved to the dry matter outlet. The dry transfer member is a conveyor, the last conveyor to be discharged is a multi-purpose drying, characterized in that the conveyor belt is ventilated, the other conveyor using a conveyor belt that can not pass through Device. delete The method of claim 1, The pair of the object to be inserted is a pair of spaced apart, the rotary blades of the object to be installed on the upper side of the object to be inserted and the rotary blades of the object to be installed installed on the lower side of the object to be inserted alternately installed Multi-purpose drying device, characterized in that the drying efficiency is improved. The method according to any one of claims 1, 2 or 4,  A discharge cylinder installed at a bottom of the discharge outlet, a discharge body installed at an upper side of the discharge cylinder and moved up and down at the discharge outlet and having a stalker configured to seal the discharge hole of the drying body at a lower side thereof, and the discharge Rotating plate which is installed to be rotatable on one side of the main body, and one side is installed on the discharge body and the other side is a drying efficiency characterized in that it further comprises a dry discharge device having a rotating cylinder connected to the rotating plate Advanced multi-purpose dryer. 6. The method of claim 5, The dry object discharge device is a multi-purpose drying device with improved drying efficiency, characterized in that it further comprises an opening and closing detection means installed in at least one of the dry outlet or the rotating plate. The method of claim 6, The heat transfer system unit includes a heat absorption heat exchanger installed in an evaporator, a heat release heat exchanger installed in the condenser, a connection pipe connecting the heat absorption heat exchanger and a heat discharge heat exchanger, and a heat absorption heat exchanger installed in the connection pipe. Drying efficiency improved multi-purpose drying apparatus, characterized in that it comprises a circulation pump for circulating the working fluid to the heat dissipation heat exchanger. The method of claim 6, The heat transfer system unit includes a heat absorption heat exchanger installed in an evaporator, a heat discharge heat exchanger installed in the condenser, and a heat pipe system having a connection pipe connecting the heat absorption heat exchanger and the heat discharge heat exchanger. Multi-purpose drying apparatus improved drying efficiency, characterized in that formed inclined in opposite directions to each other. The method of claim 6, One side of the air circulation path is a multi-purpose drying device with improved drying efficiency, characterized in that the circulation motor is installed. The method of claim 6, Drying efficiency improved multi-purpose drying apparatus, characterized in that the heat discharge auxiliary condenser is further installed between the condenser and the expansion valve of the heat pump system. delete

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