KR101236381B1 - Drying machine - Google Patents

Abstract

PURPOSE: A drying machine for easily discharging condensate is provided to save energy by reducing the load of a condensation unit and a dry unit because some of heated air is circulated through an intermediate pipe without passing through the condensation unit. CONSTITUTION: A drying machine for easily discharging condensate comprises a main body(100), a dry unit(200), a condensation unit(300), first and second pipes(400,500), a cooling unit(600), a cooling water circulation pipe(700), and a condensate communicating pipe(800). The dry unit supplies heated air to a receiving part(110) through an inlet(120) of the main body. The condensate unit cools and condensates heated air discharged from an outlet(130) of the main body to separate condensate and dried air. The first pipe connects the outlet of the main body and an air communicating part(320), and transfers the heated air to the air communicating part. The second pipe connects the air communicating part of the condensation unit to the dry unit, and transfers the dried air to the dry unit. The cooling unit supplies cooling water to a cooling water communicating part(310) of the condensation unit. The cooling water circulation pipe comprises a cooling water supply line(710) and a discharge line(720), and connects the cooling water communicating part of the condensation unit to the cooling unit. The condensate communicating pipe connects the air communicating part of the condensation unit to the discharge line of the cooling water circulation pipe, and transfers the condensate separated by the condensation unit to the discharge line. [Reference numerals] (AA) Heated air; (BB) Condensate; (CC) Dried air

Description

Dryer for easy handling of condensate drainage {DRYING MACHINE}

The present invention relates to a dryer that can easily discharge treatment of condensate generated during heat exchange.

In the technique about the dryer,

Republic of Korea Patent No. 10-0892601 filed by the applicant (Korea Electric Industry Co., Ltd.) (published on April 02, 2009, hereinafter referred to as 'advanced technology') `` Plastic raw material using the condensation phenomenon by the thermoelectric element or the heat medium Moisture removal device of the

The prior art,

A raw material storage hopper in which plastic raw materials are stored;

An air supply pipe having one end embedded in the raw material storage hopper and the other end connected to an air heater;

An air heater in which one end is connected to the air supply pipe and the other end is connected to a blower;

A blower having one end connected to the air heater and the other end connected to the condensing means;

Condensing means having a cooling coil having one end connected to the blower and the other end connected to an air cooler;

Cooling means for circulating cooling water in the condensation means;

An air cooler having one end connected to the condensation means and the other end connected to an air filter; And

An air filter having one end connected to the air cooler and the other end inserted into an upper portion of the raw material storage hopper;

Consisting of

The cooling means is characterized in that consisting of a cooling fan, a compressor and a refrigerant circulation pipe,

After drying the plastic raw material is condensed moisture in the discharged air, thereby re-heating the air from which the moisture is removed and re-supplied to the raw material storage hopper to enable a more effective drying of the plastic raw material.

The prior art is to use the condensation phenomenon to reuse the air used to remove the moisture of the plastic raw material,

There is a problem to provide a separate reservoir and drainage for the treatment of condensate. In addition, when a reservoir is provided for the treatment of condensate, there is an inconvenience that the user must empty the condensate contained in the reservoir from time to time.

In addition, the prior art is provided with a cooling means consisting of a cooling fan, a compressor and a refrigerant circulation pipe in order to use the refrigerant used for air condensation again,

The refrigerant has a problem in that the evaporation phenomenon occurs during cooling by the cooling fan, or the refrigerant is circulated in the refrigerant circulation pipe and leaks are generated to compensate for the loss.

That is, there is a need to periodically replenish the lost refrigerant, and a cost loss as much as the refrigerant replenishment amount is generated.

In addition, the prior art is provided with a condensation means, a cooling means and an air heater, such as by circulating and reusing the air used for drying the plastic raw material, the structure of the device in a simple structure without the need for supply of air from the outside While trying to provide an economical moisture removal device for plastic raw materials with low manufacturing costs,

As a large amount of air is circulated at a high speed, not only condensation of the air by the condensation means is performed well,

There is a problem in that the drying efficiency of the device is not good because it has a structure that must be reheated after cooling and condensing all the air circulated.

In other words, despite not being able to fully condense all the air circulated, energy is wasted by reheating all the air after cooling.

In order to solve the above problems, the dryer is easy to process the discharge of condensate according to the present invention,

A main body having an inlet and an outlet formed on the object to be dried and the upper and lower portions thereof;

A dry unit for supplying heated air to the accommodation portion through the main body inlet;

A condensation unit having an air distribution section and a cooling water distribution section, for cooling and condensing the heated air discharged through the main body outlet to separate the condensed water and the dry air;

A first pipe interconnecting the air outlet of the main body outlet and the condensation unit and transferring the heated air discharged through the main body outlet to the air outlet;

A second pipe connecting the air flow unit of the condensation unit and the dry unit to each other and transferring the dry air separated by the condensation unit to the dry unit;

A cooling unit for supplying cooling water to the cooling water distribution unit of the condensation unit;

A cooling water circulation pipe consisting of a cooling water supply line and a discharge line, interconnecting the cooling water distribution unit of the condensation unit and the cooling unit; And

A condensate distribution pipe connecting the air flow unit of the condensation unit and the discharge line of the circulation pipe, and transferring the condensed water separated by the condensation unit to the discharge line;

And a control unit.

In addition, one end portion is further divided into the first pipe, and the other end further comprises a relay pipe connected to the second pipe,

A portion of the heating air discharged through the main body outlet is supplied to the receiving portion through the relay unit through the dry unit.

Dryer for easy condensate discharge treatment according to the present invention,

The condensate is transferred to the discharge line through the distribution pipe to facilitate the discharge treatment of condensate,

By discharging the condensate discharged to the cooling water is lost, the management of the cooling water is easy, and the maintenance cost of the device is reduced due to the saving water.

In addition, as a part of the heating air discharged through the main body outlet is circulated through the relay pipe without passing through the condensation unit, the load of the condensation unit and the dry unit is reduced, thereby saving energy and improving the efficiency of the device. have.

1 is a system diagram of a dryer according to a first embodiment of the present invention.
Figure 2 is a system diagram showing a state in which a valve is provided in the distribution pipe of FIG.
3 is a system diagram showing a state in which a discharge pump and a storage tank are further provided in a distribution pipe of FIG. 2.
4 is a schematic diagram of a dryer according to a second embodiment of the present invention.
5 is a schematic diagram of a dryer according to a third embodiment of the present invention.

Hereinafter, each embodiment of the present invention will be described in detail with reference to the accompanying drawings.

1 to 3, the dryer (e.g., a 'dryer') of the condensate discharge treatment according to the first embodiment of the present invention is largely the main body 100, the dry unit 200, the condensation unit ( 300), the first pipe 400, the second pipe 500, the cooling unit 600, the circulation pipe 700 and the distribution pipe (800).

Looking at each configuration below,

The main body 100 is

Drying object receiving unit 110, and

Inlets 120 and outlets 130 formed on the upper and lower portions of the receiving portion 110, respectively.

.

As shown, the main body 100 is formed in the form of a hopper that can accommodate a dry object made of a plastic raw material in the form of powder or granules.

However, the object to be dried may correspond to a variety of items that require drying, such as various agricultural and aquatic products, fibers or textile products, shoes, in addition to the plastic raw material, the structure of the main body 100 is a range that satisfies the conditions that can be accommodated to dry objects Various modifications and variations may be made within the scope of the invention.

The dry unit 200

As supplying heated air to the receiving portion 110 through the main body 100, the inlet 120,

A heater 210 connected to the inlet 120, and

Blower 220 for supplying air to the heater 210

.

The heater 210 may be formed of a conventional electric heater or burner.

And the blower 220 is preferably disposed so that air can be supplied to the receiving portion 110 through the heater 210, as shown is disposed behind the heater 210, the heater 210 By supplying the heated air directly to the receiving portion (110).

As a result, the dry unit 200 supplies heating air to the accommodating part 110 to dry the object to be dried.

The condensation unit 300 is

Cooling and condensing the heated air discharged through the main body 100, the outlet 130 to separate the condensed water and dry air, it comprises an air flow section 320 and the cooling water flow section 310.

In addition, a thermoelectric element 330 is interposed between the air flow part 320 and the coolant flow part 310.

The thermoelectric element 330 has a heat absorbing portion is disposed on the air flow unit 320 side, the heat generating portion is disposed on the cooling water flow unit 310 side to cool the heated air introduced into the air flow unit 320, Will be condensed.

In addition, a drain 340 for discharging condensate is disposed at a lower end of the air flow unit 320.

On the other hand, in the present embodiment, the condensation unit 300 is configured to use a thermoelectric element 330, but is not limited thereto, and condensed water by cooling and condensing the heated air discharged through the outlet 130 of the main body 100. Various modifications and changes will be possible within the range that can be separated from the dry air.

The first pipe 400 is

As connecting the outlet 130 of the main body 100 and the air flow section 320 of the condensation unit 300,

The heated air discharged through the outlet 130 is transferred to the air flow unit 320.

On the other hand, as shown, the first pipe 400 may be provided with a filter 410.

The filter 410 is disposed adjacent to the outlet 130 of the main body 100 and removes foreign substances contained in the heated air discharged through the outlet 130.

The second pipe 500 is

As connecting the air flow unit 320 and the dry unit 200 of the condensation unit 300,

The dry air separated from the condensed water by the condensation unit 300 is transferred to the dry unit 200.

The cooling unit 600

Cooling water is supplied to the cooling water distribution part 310 of the condensation unit 300, and passes through the cooling water distribution part 310 of the condensation unit 300 to increase the temperature of the cooling water raised by the thermoelectric element 330. It is lowered again to re-supply to the cooling water distribution unit 310.

The cooling unit 600 may be formed of a known cooling tower or outdoor unit, and in addition to this, various devices may be applied within a range capable of resupplying the cooling water distribution unit 310 by lowering the temperature of the elevated cooling water. Can be.

On the other hand, the cooling unit 600 is made to include a circulation pump 610, the circulation pump 610 is installed in the circulation pipe 700 to be described later, as shown, or built in the cooling tower or outdoor unit It may be provided in the form.

The circulation pipe 700 is

By connecting the cooling water distribution unit 310 and the cooling unit 600 of the condensation unit 300 to allow the cooling water to be circulated,

Cooling water supply line 710 and the discharge line (720).

That is, the circulation pipe 700 is connected to the inlet port 311 formed at one end of the cooling unit 600 and the cooling water flow unit 310, the supply line 710, the discharge A line 720 interconnects the outlet 312 formed at the other end of the cooling water distribution part 310 and the cooling unit 600, so that the cooling water is connected to the condensation unit 300 and the cooling unit. Allow 600 to cycle.

The distribution pipe 800

By connecting the air flow unit 320 and the discharge line 720 of the circulation pipe 700 of the condensation unit 300, the condensed water separated by the condensation unit 300 to the discharge line 720 Will be transferred to.

Therefore, the distribution pipe 800 is connected to the drain portion 340 of the condensation unit 300, and transfers the condensed water generated in the air flow section 320 to the discharge line 720, thereby processing the condensed water The inconvenience of having to provide separate reservoir and drainage system can be eliminated.

In addition, the cooling water must compensate for the loss caused by the evaporation phenomenon occurs when the temperature is lowered by the cooling unit 600, or leakage occurs when circulating the condensation unit 300 and the cooling unit 600. ,

According to the discharge structure of the condensate by the distribution pipe 800, the condensate transferred to the discharge line 720 to cover the cooling water is lost, not only easy management of the cooling water, but also because of the water saving Maintenance costs can be reduced.

On the other hand, as shown in Figure 2, the distribution pipe 800 is provided with a valve 810.

The valve 810 is to prevent the cooling water conveyed through the discharge line 720 is introduced into the condensation unit 300 through the distribution pipe 800, various control valves such as a known check valve Can be used.

In addition, at this time, the water flow sensor 320 of the condensation unit 300 is provided with a water level sensor 840,

The control unit 850 may be further connected to the valve 810 and the water level sensor 840.

According to this, the condensed water generated in the air flow section 320 is filled in the distribution pipe 800 by the valve 810 is maintained in a normally closed state,

Subsequently, when the water level sensor 840 detects this when the condensed water filling the distribution pipe 800 is filled up to the air flow unit 320, the valve 810 is opened by the controller 850. The condensed water that has been filled in the distribution pipe 800 and the air flow unit 320 is discharged to the discharge line 720.

And as shown in FIG. 3,

The distribution pipe 800 includes the valve 810, a discharge pump 820 disposed between the condensation unit 300 and the valve 810, and between the condensation unit 300 and the discharge pump 820. Condensate storage tank 830 disposed in the is connected.

In addition, at this time, the water level sensor 840 is installed in the upper end of the storage tank 830, the control unit 850 is the valve 810, the discharge pump 820 and the water level sensor 840 Connected to

Accordingly, the controller 850 controls the driving of the valve 810 and the discharge pump 820 according to the detection signal of the water level sensor 840.

Looking at the discharge process of the condensate according to such a configuration,

First, the condensed water separated by the condensation unit 300 is introduced into the storage tank 830 through the distribution pipe 800, and the water level in the storage tank 830 is increased when the condensed water is thus collected. The sensor 840 detects this, and when the control unit 850 receives the detection signal of the water level sensor 840 to drive the valve 810 and the discharge pump 820, the storage tank 830. Condensed water stored in the) is discharged to the discharge line (720).

Hereinafter, a dryer according to the second and third embodiments of the present invention will be described with reference to FIGS. 4 and 5.

As shown in Figure 4, according to a second embodiment of the present invention

The condensation unit 300 further comprises a cooling module 300a which initially cools the heated air discharged through the outlet 130 of the main body 100, and further cools the heated air initially cooled by the cooling module 300a. Consisting of the condensation module 300b to be condensed, the cooling module 300a and the condensation module 300b are respectively provided with the cooling water distribution part 310,

The circulation pipe 700 is the supply line 710 connecting the cooling unit 600 and the cooling water distribution unit 310 of the condensation module 300b, and the cooling water distribution unit 310 of the condensation module 300b. ) And the relay line 730 connecting the cooling water distribution unit 310 of the cooling module 300a, and the discharge connecting the cooling water distribution unit 310 and the cooling unit 600 of the cooling module 300a. Line 720.

Here, the cooling module 300a has a coil shape in which the cooling water distribution part 310 is disposed inside the air distribution part 320, and the heating air introduced into the air distribution part 320 is the cooling water distribution part 310. It is initially cooled as it heat exchanges with the cooling water flowing.

The condensation module 300b is configured to use the piezoelectric element 330, as in the condensation unit 300 of the first embodiment, to further cool and condense the heated air initially cooled by the cooling module 300a. do.

As a result, according to such a configuration, the condensation unit 300 is made up of two heat exchangers to further improve the condensation performance,

At this time, the cooling water circulates through the cooling unit 600, the condensation module 300b, and the cooling module 300a in sequence due to the relay line 730.

And, as shown in Figure 5, the dryer according to the third embodiment of the present invention

One end is further divided from the first pipe 400, and the other end further comprises a relay pipe 900 connected to the second pipe 500.

According to this, a part of the heating air discharged through the outlet 130 of the main body 100 may be supplied to the receiving portion 110 through the dry unit 200 through the relay pipe 900.

As a result, a portion of the heated air discharged through the outlet 130 of the main body 100 is circulated through the relay pipe 900 without passing through the condensation unit 300, and thus the condensation unit 300 and the dry unit. By reducing the load of the 200, energy can be saved, and the efficiency of the dryer can be improved.

In addition, at this time, the receiving unit 110 or the first pipe 400 of the main body 100 is further provided with a humidity sensor 1000,

The relay pipe 900 may be further provided with a flow rate control unit 910.

Here, the flow rate control unit 910 is for controlling the amount of heating air flowing into the relay pipe 900, a known automatic regulation valve (automatic regulation valve) may be used,

The humidity sensor 1000 and the flow control unit 910 are interconnected by the controller 850 or a separate controller (not shown).

As a result, the humidity sensor 1000 measures the humidity of the heating air containing moisture generated while the drying object is dried, and then the controller 850 or the controller according to the measured value of the humidity sensor 1000. By adjusting the opening and closing degree of the flow rate control unit 910, the dryer can be operated in a state that always exerts the optimum efficiency according to the degree of drying of the drying object.

In the above description of the present invention with reference to the accompanying drawings, a description has been made mainly on the "dryer easy to process condensate discharge" having a specific shape and structure, the present invention can be variously modified and changed by those skilled in the art, such variations and Changes should be construed as falling within the protection scope of the present invention.

100; main body
110; Receiving portion
120; Entrance
130; exit
200; Dry unit
210; heater
220; air blower
300; Condensing unit
300a; Cooling module
300b; Condensation Module
310; Coolant Distribution Section
311; Inlet
312; outlet
320; Air Distribution Department
330; Thermoelectric element
340; Drain
400; 1st pipe
410; filter
500; Second pipe
600; Cooling Unit
610; Circulation pump
700; Circulation piping
710; Supply line
720; Discharge line
730; Relay line
800; Distribution pipe
810; valve
820; Discharge pump
830; Storage tank
840; Water level sensor
850; The control unit
900; Relay piping
910; Flow control unit
1000; Humidity sensor

Claims (7)

A main body 100 having an object to be dried 110 and an inlet 120 and an outlet 130 formed at upper and lower portions thereof, respectively;
Dry unit 200 for supplying heated air to the receiving portion 110 through the main body 100, the inlet 120;
A condensation unit (300) having an air distribution unit (320) and a cooling water distribution unit (310), and cooling and condensing the heated air discharged through the outlet (130) of the main body (100);
The air outlet 320 of the main body 100 and the air flow unit 320 of the condensation unit 300 are connected to each other, and the heated air discharged through the outlet 130 of the main body 100 is connected to the air flow unit 320. A first pipe 400 for transferring to;
A second connecting the air flow unit 320 and the dry unit 200 of the condensation unit 300 to each other and transferring the dry air separated by the condensation unit 300 to the dry unit 200. Piping 500;
A cooling unit 600 for supplying cooling water to the cooling water distribution part 310 of the condensation unit 300;
Cooling water circulation line 700 consisting of a cooling water supply line 710 and the discharge line 720 to interconnect the cooling water distribution unit 310 and the cooling unit 600 of the condensation unit 300; And
The air flow unit 320 of the condensation unit 300 and the discharge line 720 of the circulation pipe 700 are interconnected, and the condensed water separated by the condensation unit 300 to the discharge line 720. Condensate distribution pipe 800 for transporting;
Dryer easy to process the condensate discharge made, including.
The method of claim 1,
The distribution pipe 800 is provided with a valve 810 for preventing the cooling water conveyed through the discharge line 720 is introduced into the condensation unit 300 through the distribution pipe 800, characterized in that Dryer for easy disposal.
The method of claim 2,
The air flow unit 320 of the condensation unit 300 is provided with a water level sensor 840,
The control unit (850) for driving the valve 810 in accordance with the detection signal of the water level sensor (840) further comprises a dryer for easy discharge treatment.
The method of claim 2,
The distribution pipe 800 includes a discharge pump 820 disposed between the condensation unit 300 and the valve 810, and a condensate storage tank disposed between the condensation unit 300 and the discharge pump 820 ( 830 is connected,
A water level sensor 840 installed at an upper end of the storage tank 830, and
And a control unit (850) for driving the valve (810) and the discharge pump (820) according to the detection signal of the water level sensor (840).
5. The method according to any one of claims 1 to 4,
The condensation unit 300 further comprises a cooling module 300a which initially cools the heated air discharged through the outlet 130 of the main body 100, and further cools the heated air initially cooled by the cooling module 300a. The condensation module 300b is condensed, the cooling module 300a and the condensation module 300b are provided with the air flow part 320 and the coolant flow part 310, respectively.
The circulation pipe 700 is the supply line 710 connecting the cooling unit 600 and the cooling water distribution unit 310 of the condensation module 300b, and the cooling water distribution unit 310 of the condensation module 300b. ) And the relay line 730 connecting the cooling water distribution unit 310 of the cooling module 300a, and the discharge connecting the cooling water distribution unit 310 and the cooling unit 600 of the cooling module 300a. Dryer easy to process the condensed water, characterized in that consisting of a line (720).
5. The method according to any one of claims 1 to 4,
One end portion is further divided into the first pipe 400, and the other end portion further comprises a relay pipe 900 connected to the second pipe 500,
A part of the heating air discharged through the outlet 130 of the main body 100 is passed through the dry unit 200 through the relay pipe 900 to the receiving portion 110, characterized in that the discharge process Easy dryer.
The method according to claim 6,
The receiving unit 110 or the first pipe 400 of the main body 100 is further provided with a humidity sensor 1000,
The relay pipe 900, the condensed water characterized in that it further comprises a flow rate control unit 910 for adjusting the amount of heating air flowing into the relay pipe 900 in accordance with the measured value of the humidity sensor (1000) Dryer for easy disposal.

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