KR20020027828A - Distiller - Google Patents

Abstract

PURPOSE: A distiller is provided which is easily disassembled and cleaned so that the inner part of the distiller is always maintained clean, thereby supplies more pure and clean distilled water, and prevents scaling generated inside a heating chamber of the distiller. CONSTITUTION: The distiller comprises a body(2) at one side of the outer circumference of which a power supply switch is installed; a heating chamber(10) which is installed at the inner part of the body(2), generates steam by heating water supplied through a heater(16), and at the upper part of which a vapor exhaust port(12) is formed to exhaust steam; a heat exchange chamber(20) which is connected to the vapor exhaust port(12) of the heating chamber(10) and separated for cleaning, and at the inner part of which a cooling water can(26) is installed so that steam exhausted to the vapor exhaust port(12) is condensed into distilled water through heat exchange as the steam is being contacted with the outer surface of the cooling water can(26); a supply tank(50) which is installed at one side of the body(2), one side of the upper surface of which is connected to the cooling water can(26) so that cooling water is flown into, one side of the lower part of which is connected to the heating chamber(10) so as to supply cooling water into the heating chamber(10), and at one side of the upper part a connection pipe is installed so that the supply tank(50) is connected to the heating chamber(10); a cooling water level sensing sensor(60) which is installed at one side of the inner part of the supply tank(50) to transmit electrical signals to the heater(16) so that cooling water is heated by sensing the water level reached to the set water level when cooling water supplied to the heating chamber(10) reaches to a set water level; a cooling water discharge pipe(80) which is installed at one side of the inner part of the supply tank(50) to discharge cooling water supplied to a set water level or more; and a distilled water discharge pipe(130) which is connected to the heat exchange chamber(20) to discharge distilled water produced in the heat exchange chamber(20) into the outside.

Description

Distiller

The present invention relates to a still, and more particularly, to a still that can be easily disassembled and assembled, and can be used for internal cleaning, excellent performance and semi-permanent use.

In general, a distillation apparatus is a device for obtaining pure and clean water from which impurities are removed. Briefly, the principle is to generate distilled water by heating water or a liquid to vaporize it with water vapor, and then cooling the water vapor through heat exchange.

Although many types of distillers have been developed based on the same principle, most distillers have been inconvenient to clean or repair the inside of the distillation because they are very difficult to separate or assemble.

In addition, when the scale or sediment accumulated in the water container installed therein, because the container can not be separated and washed, it is necessary to replace the container itself, there was a problem that requires a lot of costs.

In addition, most distillers have a problem that the residue generated when the water is heated to vaporize with water vapor is accumulated on the bottom of the heating chamber to form a skele, which is one of the causes of failure, and it is very difficult to remove it.

In addition, there is a disadvantage in that the amount of distilled water produced in one operation is limited because the continuous water supply is difficult.

The present invention has been made in order to solve the problems described above, the purpose of which is easy to disassemble and wash, the inside is always kept clean to provide more pure and clean distilled water, which is generated in the heating chamber It is to provide a still that can prevent the Skel phenomenon.

Another object of the present invention is to provide a distillation machine capable of producing a desired amount of distilled water through a continuous water supply.

In order to achieve the above object, the still body according to the present invention generates a steam by heating the water supplied through the heater and the main body is provided with a power switch on the outer circumferential one side, the heater, the upper steam is exhausted It is coupled to the heating chamber in which the steam exhaust vent is formed, and coupled to the steam exhaust vent of the heating chamber, and separated to enable internal cleaning, and a cooling water tank is installed therein to store the cooling water supplied from the outside, so that the steam discharged to the steam exhaust vent is outside the cooling tank. It is installed on one side of the main body and the heat exchange chamber to be condensed into the distilled water through heat exchange while being in contact with the surface, one side of the upper surface is in communication with the cooling water tank so that the cooling water can be introduced, the lower side is in communication with the heating chamber to supply the cooling water to the heating chamber, The upper one side is provided with a supply tank in which a communication tube is installed so as to communicate with the heating chamber, When the coolant supplied to the heating chamber reaches the set level, the coolant level sensor detects this and transmits an electrical signal to the heater to heat the coolant, and the coolant is installed at one side of the supply tank to discharge the coolant supplied above the set level. It characterized in that it comprises a cooling water discharge pipe and the distilled water discharge pipe connected to the heat exchange chamber to discharge the distilled water generated in the soft-exchange chamber to the outside.

Figure 1 is a side cross-sectional view showing the configuration of the present invention still,

2 is a front view of the present invention still,

Figure 3 is a partially enlarged cross-sectional view showing a coupling structure of the cover and the tray of the heat exchange chamber in the present invention,

Figure 4 is a partially enlarged cross-sectional view showing the structure of the bolt and nut for coupling the cover and the tray of the heat exchange chamber in the present invention,

5 is a partially enlarged cross-sectional view showing a connection structure of a cooling water supply tank and a cooling water heating chamber and a lower structure of the cooling water supply tank in the present invention;

Figure 6 is a partial enlarged cross-sectional view of the coolant level sensor in the present invention,

Figure 7 is a partial enlarged cross-sectional view showing the assembly of the distilled water reservoir in the present invention,

8 is a perspective view showing a cooling water container in the present invention,

Figure 9 is a partially enlarged view showing another embodiment of the cooling water container in the present invention.

◎ Explanation of symbols for main part of drawing

2: main body 4: power switch

6: Time meter 8: working timer

9: button 10: heating chamber

12: steam exhaust 14: inlet pipe

16: heater 20: heat exchange chamber

22: cover 24: tray

24a: through hole 24b: collecting groove

24c: drain 26: cooling water container

26a: through hole 26b: cooling water supply pipe

26c: coolant feed pipe 28: solenoid valve

29: guide pin 30: bolt

30a: gas inlet 32: nut

32a: gas exhaust hole 40: baffle

42: hook 50: supply tank

51, 52, 53: bulkhead 51a, 52a, 53a: communication hole

54: guide tube 55: coupling

56: rubber ring 60: coolant level sensor

62: case 64: cap

64a: Outlet 70: Foreign substance discharge valve

72: solenoid 80: cooling water discharge pipe

82: drain hole 90: coolant overflow prevention sensor

100: distilled water reservoir 102: upper case

102a: flange portion 102b: inlet

104: lower case 104a: flange portion

104b: exit 106: rubber packing

108: circular band 110: distilled water transfer pipe

120: sleep detection sensor 122: upper sleep detection sensor

124: lower surface detection sensor 130: distilled water discharge pipe

140: pump

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

Figure 1 is a side cross-sectional view showing the configuration of the present invention still, Figure 2 is a front view, Figures 3 to 7 is a partial enlarged cross-sectional view showing an enlarged structure of each part in the present invention, Figure 8 is a cooling water container in the present invention 9 is a perspective view showing a partially enlarged view showing another embodiment of the coolant in the present invention.

1 and 2, one side of the main body 2 determines a power switch 4 for selectively operating the apparatus, an operation timer 8 provided to set an operation time, and an internal cleaning timing. It is provided with a time meter 6 for displaying the cumulative time, and a button 9 for operating the pump 140 to discharge the distilled water to the distilled water discharge pipe 130. The outer shape of the main body 2 is most preferably made of a cylindrical shape, but is not necessarily limited thereto, and may be manufactured in a polygon such as a square or a pentagon.

The inside of the main body 2 is provided with a heating chamber 10 for heating the supplied water to generate steam. In the heating chamber 10, a heater 16 is installed at a lower portion of the heating chamber 10 to heat water stored through the heater 16 to generate steam, and an upper portion of the heating chamber 10 is formed to penetrate a steam exhaust pipe 12 through which the steam is exhausted. In addition, a baffle 40 is installed at one side of the steam exhaust port 12 to block the exhaust of substances other than water vapor. Here, the baffle 40 can be easily separated because the catch ring 42 extending upwardly is held at the end of the steam exhaust pipe 12 to maintain a fixed state.

A heat exchange chamber 20 for generating distilled water by using steam that is exhausted is fitted into the steam exhaust port 12 of the cooling water heating chamber 10.

The heat exchange chamber 20 is divided into a detachable tray 24 and a cover 22, and as shown in FIG. 3, the lower outer surface of the cover 22 has a tray (2) to prevent leakage of distilled water into the atmosphere. 24) is assembled to be in close contact with the inner surface of the top. In addition, a through hole 24a through which the steam exhaust port 12 is inserted is formed in the center of the tray 24, and a collecting groove 24b for collecting distilled water is formed at an edge thereof, and a drain hole is formed at one side of the collecting groove 24b. 24c is formed. A plurality of bolts 30 are coupled to a portion adjacent to the through hole 24a so as to pass through the tray 24 and the cover 22 at predetermined intervals along the circumferential direction, and nuts 32 are attached to each bolt 30. ) Is fastened to fix the tray 24 and the cover 22.

As shown in FIG. 4, the bolt 30 is formed to be hollow so that the inside thereof penetrates along the longitudinal direction, and a non-condensable gas inlet hole 30a penetrating the inside is formed at one side adjacent to the head. In addition, an exhaust hole 32a is formed at one side of the nut 32 to communicate with the inside of the bolt 30. The bolt 30 and the nut 32 have such a structure for discharging the non-condensable gas remaining in the heat exchange chamber 20 without being condensed with distilled water to the atmosphere by using the airflow phenomenon.

The cooling water container 26 is installed in the heat exchange chamber 20. The cooling water container 26 is formed with a through hole 26a for accommodating the steam exhaust port 12 and the bolt 30 at the center thereof, and the upper surface thereof flows naturally to the edge when water vapor is liquefied with the cooling water. It is inclined, and the side has an inclined surface that extends from top to bottom. In addition, around the outer circumference of the cooling water container 26, the guide pin 29 is fitted to assemble so that complete heat exchange can take place when distilled water flows down. As shown in FIG. 8, the guide pin 29 is manufactured in a spiral coil shape to be in close contact with the outer circumference of the cooling water container 26, and is easily detachably fitted to the cooling water container 26. Here, the guide pin 29 may be integrally formed with the cooling water container 26.

In addition, instead of the guide pin, as illustrated in FIG. 9, a corrugated groove 26d extending in a coil shape may be formed around the outer circumference of the cooling water container 26 to allow distilled water to flow down to the other. Of course, even if there is no guide pin or corrugated groove, heat exchange is made.

Cooling water supply pipe 26b for supplying the cooling water is integrally or detachably formed at one lower side of the cooling water container 26, and one side of the cooling water supply pipe 26b can selectively block the cooling water supplied through an electrical signal. So that the solenoid valve 28 is mounted. In addition, on the opposite side of the cooling water supply pipe 26b, a cooling water delivery pipe 26c for transferring the cooling water stored in the cooling water container 26 to the supply tank 50 described later is formed integrally or detachably. Here, the upper end portion of the cooling water transfer pipe 26c is positioned at the upper portion of the cooling water container 26, and the lower end portion is coupled to the upper surface of the supply tank 50 by bolts or the like.

Supply tank 50 is fixed to one side of the main body 2, the lower one side is installed so as to communicate with the heating chamber 10 installed in the main body 2, the upper one side communicating tube 58 so as to communicate with the heating chamber 10. ) Is installed. As such, since the supply tank 50 and the heating chamber 10 communicate with each other, the cooling water transferred to the supply tank 50 naturally flows into the heating chamber 10, so that the supply tank 50 and the heating chamber 10 are You will always stay the same.

As shown in FIG. 5, the lower end of the supply tank 50 is formed with a guide tube 54 communicating with the inside of the supply tank 50, and the lower end of the heating chamber 10 is provided on the outer surface of the guide tube 54. The inlet pipe 14 to be fitted and coupled is formed to communicate with the interior of the heating chamber 10. And, the outer side of the guide tube 54 is equipped with a coupling 55 which is conveyed along the longitudinal direction of the guide tube, and the inner periphery of the coupling 55 and the outer periphery of the inlet pipe 14 correspond to each other. The threaded portion is formed to fix the guide tube 54 and the inlet tube 14 so as not to be separated from each other when combined. In addition, a rubber ring 56 is mounted between the coupling 55 and the inlet pipe 14 to prevent leakage when the coolant is transferred.

A plurality of partitions 51, 52, and 53 are formed in the supply tank 50 along the longitudinal direction, and communication holes 51a, 52a, through which cooling water passes, are provided in the partitions 51, 52, and 53, respectively. 53a) is formed.

The upper partition wall has a coolant level detection sensor that detects when the coolant stored in the heating chamber 10 reaches a set level and transmits an electrical signal to operate the heater 16 mounted at the bottom of the heating chamber 10 ( 60) is installed. The level set here refers to the ideal level so that the highest amount of water vapor can be generated without difficulty when the heater 16 is operated.

As shown in FIG. 6, a float switch is used as the coolant level sensor 60, and the outside of the sensor is formed with a hole communicating with the communication hole 51a of the partition 51. Is enclosed, the upper portion of the case 62 is covered with a cap 64 formed on one side of the access hole (64a) to pass through the cooling water is coupled.

In addition, a cooling water discharge pipe 80 for discharging the cooling water supplied at a predetermined level or higher is fixedly installed by the partition walls 51, 52, and 53 on one side of the supply tank 50. The upper end of the coolant discharge pipe 80 is positioned above the set water level, and the lower end extends by a predetermined length downward through the bottom of the supply tank 50. In addition, the lower end side of the cooling water discharge pipe 80 adjacent to the bottom surface in the supply tank 50 is formed with a drain hole 82 connecting the inside of the supply tank 50 and the cooling water discharge pipe (80).

And, the communication hole (53a) of the partition wall 53 located in the lower is configured to be selectively closed by the foreign matter discharge valve (70). The foreign substance discharge valve 70 is connected to the solenoid 72 and is operated. When the operation of generating distilled water stops, the foreign material discharge valve 70 detects this to open the communication hole 53a of the partition 53, so that the water in the heating chamber 10 It is discharged completely. Here, when the foreign matter discharge valve 70 opens the communication hole 53a, the water stored in the supply tank 50 and the water stored in the heating chamber 10 are discharged through the cooling water discharge pipe 80 and are present in the heating chamber. The foreign substances are discharged together.

In addition, the upper end of the supply tank 50 detects when the level of the cooling water of the supply tank 50 rises excessively, the cooling water overflow prevention sensor 90 for transmitting an electrical signal to the solenoid valve 28 of the cooling water supply pipe (26b) ) Is installed, and the solenoid valve 28 receiving the signal cuts off the supply of cooling water. Here, the coolant overflow prevention sensor 90 also preferably uses a float switch.

On the other hand, the above-described supply tank 50 may be installed on the inner side of the main body (2) for the appearance of beauty.

The distilled water generated in the heat exchange chamber 20 is stored in the distilled water reservoir 100 disposed below the heating chamber 10 through the distilled water transfer pipe 110.

Distilled water reservoir 100 is divided into the upper case 102 and the lower case 104, and has a structure that is easily separated to enable internal cleaning. That is, as shown in FIG. 7, a flange portion 102a is formed along the edge of the upper case 102, and a flange portion 102a of the upper case 102 is formed along the edge of the upper case 102. ) And a flange portion 104a is formed, and has a structure fixed by the circular band 108 in a state where the rubber packing 106 is interposed between the flange portions 102a and 104a.

Then, one side of the upper case 102 is formed with an inlet 102b connected to the distilled water transfer pipe 110 coupled to communicate with the drain port 24a of the tray 24, the distilled water on one side of the lower case 104 An outlet 104b connected to the discharge pipe 130 is formed. Distilled water discharge pipe 130 is extended to the top and withdrawn to the outside of the main body 2, the pump 140 is installed on one side of the lower side of the distilled water discharge pipe 130 to press the button (9) formed on one side of the main body (2) The pump 140 operates to discharge the distilled water stored in the distilled water reservoir 100 to the outside through the distilled water discharge pipe 130.

In addition, the inside of the distilled water reservoir 100 is filled with distilled water is a sleep detection sensor 120 that detects this and transmits a signal so that the device does not operate is installed. The sleep sensor 120 is divided into an upper sleep sensor 122 and a lower sleep sensor 124, the upper sleep sensor 122 detects the maximum amount of distilled water stored in the distilled water reservoir 100, the lower sleep The sensor 124 detects the minimum amount of distilled water stored in the distilled water reservoir 100 and operates the apparatus to produce distilled water at the same time. The upper sleep sensor 122 and the lower sleep sensor 124 used herein also preferably use a float switch.

Now, the operation and operation of the present invention thus configured will be described.

When the power switch 4 provided on one side of the main body 2 is pressed, the solenoid valve 28 mounted on the cooling water supply pipe 26b is opened, and cooling water made of water or other liquid is supplied to the cooling water tank 26, and the cooling water tank Cooling water introduced into the (26) is transferred to the supply tank 50 through the cooling water transfer pipe (26c). At this time, since the cooling water is supplied from the lower part of the cooling water container 26 and hot water is discharged from the upper part first, the cooling water container 26 is always kept in a cool state as a whole.

The cooling water transferred to the supply tank 50 naturally flows into the heating chamber 10, and the supply tank 50 and the heating chamber 10 maintain the same water surface. When the water level rises and reaches the set water level, the coolant level sensor 60 installed on the upper side of the supply tank 50 detects this and transmits the signal to the heater 16. The heater 16 operates at the same time as receiving the signal transmitted from the coolant level sensor 60 to heat the coolant stored in the heating chamber 10 to generate steam.

Of course, since the cooling water discharge pipe 80 is mounted on one side of the supply tank 50, the water level in the supply tank 50 and the heating chamber 10 does not rise above the set level even though the cooling water is continuously supplied. That is, since the upper portion of the coolant discharge pipe 80 is located slightly higher than the set water level, the coolant supplied above the set water level is discharged through the coolant discharge pipe 80. At this time, the coolant supplied to the supply tank 50 is supplied with cold water for the first few minutes, but after a predetermined time, hot water is supplied due to a heat exchange effect described later, and thus water discharged through the coolant discharge pipe 80 is also hot. Is discharged. Therefore, there is an advantage to save energy by using the hot water discharged through the coolant discharge pipe 80 in winter.

Water vapor generated in the heating chamber 10 moves to the heat exchange chamber 20 through the steam exhaust port 12. Of course, since the baffle 40 is mounted on one side of the steam exhaust port 12, water masses or foreign substances splashing while cutting off water other than steam are blocked from entering the heat exchange chamber 20.

The water vapor introduced into the heat exchange chamber 20 is cooled while being in contact with the surface of the cool cooling water tank 26 to condense into distilled water. As the distilled water flows down the surface from the top to the bottom of the cooling water tank 26, the distilled water is guided to the guide pin 29 coupled to the outer circumference of the cooling water tank 26 and slowly flows down while rotating about the cooling water tank. Thus, complete heat exchange is achieved.

At this time, the gas not condensed with distilled water is discharged to the atmosphere through the gas inlet hole (30a) formed in the bolt 30 by the air flow phenomenon. That is, the inside of the bolt 30 is formed to pass through the longitudinal direction so that the air can pass through, the upper part of the heat exchange chamber 20 to form a hot air layer due to the hot water vapor, the lower part is a cold air layer by the cooling water Therefore, the outside air is moved from the bottom to the top in the bolt (30). When the air moves, the gas present in the heat exchange chamber 20 is sucked into the inside of the bolt 30 through the gas inlet 30a, and moves with the air through the exhaust hole 32a formed in the nut 32. It is discharged to the outside.

The distilled water thus generated is transferred to and stored in the distilled water storage tank 100 through the distilled water storage tube 110, and to withdraw the distilled water stored in the distilled water storage cylinder 100, the button 9 provided on one side of the main body 2 is pressed. . That is, when the button 9 is pressed, the pump 140 is operated to discharge the distilled water stored in the distilled water storage container 100 through the distilled water discharge pipe 130.

On the other hand, the inner surface of the distilled water reservoir 100 is a sleep sensor 120 is installed to adjust the amount of distilled water stored in the distilled water reservoir (100). That is, when the surface of the stored distilled water is sensed by the upper surface detection sensor 122, the solenoid valve 28 cuts off the supply of the cooling water and the heater 16 is disconnected to stop the production of the distilled water. In addition, when the sleep surface of the distilled water is detected by the lower surface sensor 124, the supply of cooling water is started and the heater 16 is operated to start the production of distilled water. Therefore, distilled water reservoir 100 is automatically stored distilled water.

At this time, when the distilled water reservoir 100 is filled with distilled water and the operation of the heater 16 is stopped, this signal is transmitted to the solenoid 72 to operate the foreign substance discharge valve 70 to communicate with the communication hole of the supply tank 50 ( The foreign substance discharge valve 70 which is blocking 53a) is raised. When the foreign matter discharge valve 70 rises, the communication hole 53a is opened, and the water stored in the heating chamber 10 and the water stored in the supply tank 50 pass through the communication hole 53a together to cool the water discharge pipe 80. It is discharged to the outside through the drain hole (82). At this time, since the foreign substances generated when the water is heated in the heating chamber 10 and vaporized into water vapor are discharged together with the water, a skeletal phenomenon does not occur in the heating chamber 10.

On the other hand, since the cooling water overflow prevention sensor 90 is installed at the upper end of the supply tank 50, the phenomenon that the cooling water overflows from the supply tank 50 does not occur. That is, when a problem such as clogging of the coolant discharge pipe 80 occurs and the water level in the supply tank continues to rise above the set level, the coolant overflow prevention sensor 90 detects this and transmits a signal to the solenoid valve 28. The solenoid valve 28 receiving the signal blocks the supply of the cooling water, thereby preventing the cooling water from overflowing from the supply tank 50.

On the other hand, the operation timer 8 and the hour meter 6 provided on one side of the main body 2 is to provide a convenience to the user, the operation timer 8 is provided so that the user can arbitrarily set the operation time of the device The hour meter 6 is for displaying the cumulative total usage time of the device so that the user can determine the internal cleaning time and the inspection time without having to separate the device.

As described above, the present invention is easy to disintegrate all parts because it is easy to clean the inside and keep the inside clean at all times to obtain more pure and clean distilled water, it is possible to prevent the skeletal phenomenon generated in the heating chamber in advance. Get an effect.

In addition, the performance of producing distilled water is excellent, there is an advantage that can generate a desired amount of distilled water through a continuous water supply.

Claims (9)

The main body 2 is provided with a power switch 4 on one side of the outer circumference, A heating chamber 10 installed inside the main body 2 and generating water vapor by heating water supplied through the heater 16, and having a steam exhaust port 12 through which water vapor is exhausted; It is coupled to the steam exhaust port 12 of the heating chamber 10, separated to enable internal cleaning, and a cooling water tank 26 is installed therein to store the coolant supplied from the outside to exhaust the steam exhaust port 12 A heat exchange chamber 20 which allows water vapor to be condensed into distilled water through heat exchange while being in contact with the outer surface of the cooling water container 26; It is installed on one side of the main body 2, one side of the upper surface is in communication with the cooling water tank 26 so that the cooling water can be drawn in, the lower one side is in communication with the heating chamber 10 to cool the water to the heating chamber (10) A supply tank 50 provided with a communication tube 58 so as to communicate with the heating chamber 10 at an upper side thereof; Installed on one side of the supply tank 50 detects when the coolant supplied to the heating chamber 10 reaches the set water level to detect the coolant level to transmit an electrical signal to the heater 16 to heat the coolant With sensor 60, A cooling water discharge pipe (80) installed at an inner side of the supply tank (50) and discharging the cooling water supplied above a set water level; Distilled water characterized in that it comprises a distilled water discharge pipe 130 is connected to the heat exchange chamber 20 to discharge the distilled water generated in the soft exchange chamber to the outside. According to claim 1, Distilled water storage tank 100 is installed on one side of the inside of the main body 2, the upper one side is in communication with the heat exchange chamber 20 to store the distilled water generated in the heat exchange chamber 20, One side is in communication with the bottom surface of the distilled water reservoir 100, the other side distilled water discharge pipe 130 extending through the upper one side of the main body 2 and the outside, The pump 140 is installed on one side of the distilled water discharge pipe 130 and electrically connected to the button 9 provided on one side of the main body to press the button 9 so that the distilled water is discharged through the distilled water discharge pipe 130. Distiller, characterized in that consisting of. The method according to claim 1, wherein an operation timer (8) provided at one side of the main body (2) is provided, and a time meter (6) displaying a cumulative time so as to determine an internal cleaning time is provided. Featuring stills. The distillation apparatus according to claim 1, further comprising a baffle (40) installed on one side of the steam exhaust port (12) to block a substance other than water vapor from being exhausted. The method of claim 1, wherein the guide pin 29 is formed in a coil shape to guide the heat exchange is complete while riding down the distilled water is inserted and coupled to be in close contact with the outer circumference of the cooling water container 26, or the cooling water container (26) Distillation characterized in that the pleated groove (26d) leading to the coil shape in the outer circumference of the). According to claim 1, It is installed to selectively open and close the communication hole (53a) formed on one side of the lower end of the cooling water discharge pipe 80 to selectively select the water and foreign matter stored in the supply tank 50 and the heating chamber (10) Distillation characterized in that it comprises a foreign substance discharge valve 70 to discharge to. The solenoid valve 28 of claim 1, which is installed at one side of a cooling water supply pipe 26b for supplying cooling water to the cooling water tank 26, and selectively blocks the supply of cooling water, and an upper portion of the supply tank 50. When installed, the water level of the supply tank 50 rises excessively, it is characterized in that the coolant overflow prevention sensor 90 for transmitting an electrical signal to the solenoid valve 28 so as to cut off the supply of the coolant still. The distilled water reservoir 100 is divided into an upper case 102 and a lower case 104 so as to be cleaned, and an edge of a lower end of the upper case 102 and an upper end of the lower case 104. The flange portions 102a and 104a corresponding to each other are formed, and have a structure fixed by the circular band 108 in a state where the rubber packing 106 is disposed between the flange portions 102a and 104a. Distilled water characterized in that the detection sensor 120 is installed to detect the amount of stored distilled water and transmit a signal to stop the operation when the cooling water is full. The heat exchange chamber (20) is divided into a detachable tray (24) and a cover (22), and the tray (24) and the cover (22) are separated from the tray (24) at a predetermined distance from the center. It is coupled by a plurality of bolts 30 coupled to penetrate the cover 22 and nuts 32 fastened thereto, and the inside of the bolt 30 is formed in a hollow to penetrate along the longitudinal direction and is adjacent to the head part. The gas inlet hole (30a) is formed therein and through, and one side of the nut (32) is characterized in that the exhaust hole (32a) is formed so as to communicate with the inside of the bolt (30).