KR20010095432A - Vacuum dryer - Google Patents

Abstract

PURPOSE: A temperature control method of a vacuum drier and a device thereof are provided to vacuum-dry fermentable leftovers, and culture microorganisms conveniently by keeping constant internal temperature and vacuum pressure in a vacuum drier tank. CONSTITUTION: A temperature detecting sensor measures the internal temperature of a drier tank(S101). A comparator of a control box compares the detected temperature from the temperature detecting sensor with the set temperature(S102). The vacuum pressure of the tank is decreased with supplying air to a vacuum pump in case of the detected temperature to be less than the set value, and an air supply valve connected to a suction pipe is automatically opened with the control box to increase the temperature(S103). The suction force from the vacuum pump is applied to the tank in reaching the internal temperature of the tank to the set value, and the air supply valve is automatically closed for vacuum with the command of the control box.

Description

Temperature control method of vacuum dryer and its device {VACUUM DRYER}

The present invention relates to a vacuum dryer, in particular, by automatically opening and closing the control box to the suction pipe connecting the vacuum pump and the tank of the vacuum dryer that can dry food waste (remaining food) or culture microorganisms It is equipped with an air supply valve to supply external air to the vacuum pump. When the sensing temperature in the tank detected by the temperature sensor is lower than the set temperature range of the control box, the external air is opened by the automatic opening of the air supply valve. When the vacuum performance in the tank is weakened by supplying it into the vacuum pump, the vacuum pressure in the tank is lowered and the temperature is increased. When the temperature in the tank reaches the set temperature range, all the suction power of the vacuum pump is closed by the automatic closing of the air supply valve. Uniform temperature by reaching the tank and showing the normal vacuum performance It can vacuum dry the food waste and, while maintaining temperature control of the vacuum dryer so that the microorganism can be uniformly dried culture methods and to the device.

The configuration of a vacuum dryer for vacuum drying food wastes is shown in FIG. 2 simultaneously.

The configuration of the vacuum dryer is a tank 103 formed in the heating tank 101 so as to contain a variety of food debris containing water,

A burner 102 embedded in a heating bath 101 for heating the tank 103;

A flue 104 formed above the heating tank 101 to discharge the smoke and gas burned by the burner 102 to the outside,

The food waste inside the tank 103 heated by the burner 102 is forcibly sucked and discharged to the outside to discharge the food dregs by vacuuming inside the tank 103 so as to vacuum dry the food residue. In order to connect the tank 103 and the suction pipe 107 to the vacuum pump 108,

In order to sense the temperature and vacuum pressure in the tank 103 is configured with a temperature sensor 105 and a pressure sensor 106 coupled to the upper side of the tank 103.

The effect of the conventional configuration as described above will be described.

First, the food waste etc. are put into the tank 103 formed in the heating tank 101, and the said tank 103 is heated by the burner 102. FIG.

In addition, while the vacuum pump 108 coupled to the outside of the heating tank 101 is driven, the air in the tank 103 is sucked through the suction pipe 107 to be discharged to the outside.

Accordingly, the inside of the tank 103 is evacuated by the suction action of the vacuum pump 108, and the food residues inside the tank 103 are dried in a vacuum state.

In addition, the moisture contained in the food dregs in the tank 103 is separated from the food dregs by the continuous heating of the burner 102 and then discharged to the outside by the suction force of the vacuum pump 108, thereby increasing the drying speed. .

On the other hand, when the inside of the tank 103 is evacuated while the air in the tank 103 is sucked out and discharged to the outside by the operation of the vacuum pump 108 as described above, the vacuum pressure and temperature inside the tank 103 are vaporized. The temperature and pressure relationship in the table is changed to have an opposite relationship. As the suction pressure of the vacuum pump 108 becomes stronger, it becomes difficult to maintain a constant temperature because the temperature in the tank 103 decreases.

Conventionally, burner 102 was used to maintain a constant temperature inside the tank 103.

That is, when the temperature of the temperature sensor 105 mounted on the tank 103 is lowered and the pressure of the pressure sensor 106 is increased, the tank is extinguished by extinguishing the burner 102 or weakening the thermal power of the burner 102. The temperature of (103) was lowered so that the vacuum pressure was lowered to maintain the temperature.

However, the temperature control by the burner 102 as described above maintains the temperature within the set range because the operator manually adjusts the thermal power of the burner 102 while watching the temperature sensor 105 and the pressure sensor 106. I had an impossible problem.

If the temperature of the vacuum dryer is not maintained as described above, there is a problem in that it cannot be used as a feed because it cannot adjust the temperature at which the food dregs can be fermented.

In addition, when the temperature of the vacuum dryer is not maintained, problems such as food debris in the tank 103 may be pressed onto the inner surface of the tank 103 may occur.

In particular, the microbial uniformity may be dried and cultured using the vacuum dryer. Since the microbial equalization is very sensitive to temperature, the culture is impossible if the proper temperature is not maintained. I can't do it.

The purpose of the present invention for solving and solving these conventional problems,

By maintaining a constant temperature and vacuum pressure inside the tank of the vacuum dryer, it is possible to enable vacuum drying of food residues such as fermentable foods, and at the same time, to facilitate drying and cultivation of microorganisms.

In order to achieve the above object, the present invention,

The suction pipe connecting the vacuum pump and the tank of the vacuum dryer has an air supply valve which automatically opens and closes the air by the instruction of the control box and supplies the outside air to the vacuum pump so that the detected temperature in the tank detected by the temperature sensor is If the control box is lower than the set temperature range, the external air is supplied into the vacuum pump by the automatic opening of the air supply valve to weaken the vacuum performance on the tank and the temperature in the tank is lowered to increase the temperature. Reaches the set temperature, all the suction power of the vacuum pump is applied to the tank by the automatic closing of the air supply valve, and the uniform temperature is maintained within the set temperature range by the normal vacuum performance. You can do it.

1 is a flute chart showing a temperature control method of the present invention vacuum dryer

Figure 2 is a view of a first embodiment showing a temperature control device of the present invention vacuum dryer

Figure 3 is a view of a second embodiment showing a temperature control device of the present invention vacuum dryer

<Code Description of Main Parts of Drawing>

101-heater 102-burner

103-tank 104-years

105-temperature sensor 106-pressure sensor

107-Suction tube 108-Vacuum pump

109 control box 111 air supply valve

112-axis 113-displacement sensor

114-rotating rod 115-rotating member

116-driven gear 117-reduction gear group

118-electric gear 119-drive member

120-Case 121-Wear Gear

122-Warm

The temperature control method of the present invention will be described in detail by the flow chart of FIG.

Temperature sensing process (S101) for detecting the temperature inside the tank 103 of the dryer by the temperature sensor 105,

A temperature comparison process (S102) for comparing the temperature sensed in the temperature detection process (S101) and the set temperature by a comparator of the control box 109;

When the detected temperature compared in the comparison process (S102) of the temperature is lower than the set temperature range by supplying the outside air into the vacuum pump 108, the vacuum performance on the tank 103 is weakened while the vacuum pressure in the tank 103 Opening step (S103) of the air supply valve for automatically opening the air supply valve 111 connected to the suction pipe 107 to lower the temperature by the instruction of the control box 109 to raise the temperature,

When the temperature in the tank 103 reaches the set temperature range by the opening step (S103) of the air supply valve, the air supply valve so that the suction power of the vacuum pump 108 extends to the tank 103 to exert normal vacuum performance. It is made of a closing process (S104) of the air supply valve to automatically close the (111) by the instruction of the control box (109).

And, the temperature control device of the present invention will be described in detail with reference to Figs.

Vacuum performance on the tank 103 by supplying outside air into the vacuum pump 108 when the detected temperature in the tank 103 detected by the temperature sensor 105 is lower than the set temperature range of the control box 109. As this weakens, the pressure in the tank 103 is lowered to raise the temperature, and when the temperature in the tank 103 reaches the set temperature range, all of the suction power of the vacuum pump 108 reaches the tank 103 and normal vacuum performance is achieved. An air supply valve 111 mounted on a suction pipe 107 connecting the vacuum pump 108 and the tank 103 to be exerted;

The air supply valve 111 is configured to have an opening and closing means of the air supply valve for automatically opening and closing the instructions of the control box 109.

In addition, the opening and closing means of the air supply valve is coupled to one side of the case 120 is coupled to the rotary rod 114 of the displacement sensor 113 in the upper portion and the rotating shaft 112 of the air supply valve 111 in the lower portion Rotating member 115 and coupling the),

A driven gear 116 coupled to the rotating member 115 to rotate the rotating member 115;

A plurality of reduction gear groups 117 engaged with the driven gear 116 to transmit the reduced rotational force to the driven gear 116 to rotate the rotating member 115;

In order to transmit the rotational force to the reduction gear group 117, the reduction gear 117 and the electric gear 118 on one side were provided as a driving member 119 engaged with each other.

In addition, the opening and closing means of the air supply valve is coupled to one side of the case 120, the upper portion is coupled to the rotary rod 114 of the displacement sensor (113) and the lower side of the rotary shaft 112 of the air supply valve 111 Rotating member 115 and coupling the),

Worm gear 121 is coupled to the rotating member 115 to rotate the rotating member 115,

In order to rotate the worm gear 121 is provided with a worm 122 connected to the drive member 119 engaged with the worm gear 121.

In addition, the driving member 119 was provided as a stepping motor capable of forward and reverse rotation.

Referring to the operation of the present invention as described above is as follows.

First, the temperature control method of the vacuum dryer of the present invention will be described by the flow chart of FIG.

Inside the tank 103 of the present invention, the food residues for drying or the microorganisms for cultivation are put and are continuously heated by the burner 102 of the heating tank 101.

In addition, air and steam generated in the tank 103 are discharged to the outside through the suction pipe 107 by the suction force of the vacuum pump 108, and the tank 103 is evacuated.

The temperature inside the tank 103 to be dried in the vacuum state as described above is detected by the temperature sensor 105 and the vacuum pressure inside the tank 103 is detected by the pressure sensor 106.

On the other hand, the contents inside the tank 103 should be dried at the temperature set in the control box 109, for this purpose, the temperature detection process (S101) of the temperature sensor 105 is made.

That is, when the temperature sensor 105 of the temperature detection process (S101) detects the temperature inside the tank 103 and sends this data to the control box 109, the temperature is controlled by a comparator inside the control box 109. A comparison process of comparing the temperature (S102) is carried out.

At this time, when the inside of the tank 103 is evacuated while the air and the steam in the tank 103 are sucked out and discharged to the outside by the operation of the vacuum pump 108, the vacuum pressure and the temperature inside the tank 103 are in opposite relationship. Since the suction force of the vacuum pump 108 is increased, the vacuum pressure inside the tank 103 increases while the temperature inside the tank 103 decreases.

Therefore, when the temperature inside the tank 103 detected by the temperature sensor 105 is lower than the set temperature range of the control box 109 in the temperature comparison process (S102), the air supply valve opening process (S103). This is done by the instruction of the control box 109.

The opening step of the air supply valve (S103) is the air supply valve 111 mounted on the suction pipe 107 connecting the tank 103 and the vacuum pump 108 by the control box 109 instructions. By automatically opening, external air is supplied into the vacuum pump 108 to weaken the vacuum performance on the tank 103.

That is, when the outside air is supplied to the vacuum pump 108 through the air supply valve 111 of the suction pipe 107, the vacuum pump (in the tank 103) by the amount of air supplied through the air supply valve 111 108) the suction force to be sucked is dropped and the vacuum pressure in the tank is lowered.

Therefore, while the vacuum pressure in the tank 103 is lowered by the temperature and pressure relationship of the steam table, the temperature in the tank 103 is increased to maintain a predetermined temperature range of the control box 109.

In addition, when the temperature inside the tank 103 rises to the set temperature range of the control box 109 by opening the air supply valve (S103), the air supply valve 111 is maintained to maintain the set temperature range. The closing process (S104) of the air supply valve to close by the instruction of the control box 109 is in progress.

As described above, the air supply valve 111 is automatically closed by the instruction of the control box 109 in the closing process (S104) of the air supply valve. The vacuum performance is exhibited.

Therefore, the vacuum pressure in the tank 103 is in a rising state and the temperature is in a falling state again.

By continuously repeating the opening step (S103) and the closing step (S104) of the air supply valve as described above to maintain a constant temperature range set in the control box 109 at all times inside the tank 103 The temperature and the vacuum pressure can also be kept constant within a certain range, so that the vacuum drying of food residues and the like, which are fermentable, and the dry culture of the microorganisms are easy.

On the other hand, the operation of the first embodiment according to the temperature control device of the vacuum dryer of the present invention will be described with reference to FIG.

First, the food waste to be fed into the tank 103 formed in the heating tank 101 or the microorganisms to be cultured in a vacuum is introduced, and then the tank 103 is heated by the burner 102.

Then, while driving the vacuum pump 108 coupled to the outside of the heating tank 101, the air and water vapor in the tank 103 is sucked through the suction pipe 107 to be discharged to the outside.

Accordingly, the inside of the tank 103 is evacuated by the suction action of the vacuum pump 108, and the food residues inside the tank 103 are dried in a vacuum state.

In addition, the moisture contained in the food dregs in the tank 103 is separated from the food dregs by the continuous heating of the burner 102 and then discharged to the outside by the suction force of the vacuum pump 108, thereby increasing the drying speed. .

On the other hand, when the inside of the tank 103 is evacuated while the air in the tank 103 is sucked out and discharged to the outside by the operation of the vacuum pump 108 as described above, the vacuum pressure and temperature inside the tank 103 are vaporized. The temperature and pressure relationship in the table is changed to have an opposite relationship. As the suction pressure of the vacuum pump 108 becomes stronger, the temperature in the tank 103 decreases, so that the set temperature range of the control box 109 is constant. Difficult to maintain

Therefore, the present invention focuses on allowing the temperature inside the tank 103 to be dried while being maintained within the temperature range set in the control box 109.

That is, the temperature inside the tank 103 to be dried in the vacuum state as described above is detected by the temperature sensor 105 and the vacuum pressure inside the tank 103 is detected by the pressure sensor 106.

In addition, the contents inside the tank 103 are dried within the temperature range set in the control box 109 so that the temperature sensor 105 senses the temperature inside the tank 103 and then controls the data. When sent to 109, the temperature is compared by a comparator inside the control box 109.

In addition, when the temperature inside the tank 103 sensed by the temperature sensor 105 is lower than the temperature range set in the control box 109, the air mounted in the suction pipe 107 is instructed by the control box 109. The supply valve 111 is opened.

Opening of the air supply valve 111 is made by the drive of the drive member 119 instructed by the control box 109 as shown in FIG.

That is, as the electric gear 118 inside the case 120 is rotated by the driving member 119, the plurality of reduction gear groups 117 are rotated.

The reduction gear group 117 rotates the rotating member 115 coupled to the driven gear 116 while rotating the driven gear 116.

Therefore, since the rotary rod 114 coupled to the upper portion and the rotary shaft 112 coupled to the lower portion are simultaneously rotated by the rotation of the rotating member 115, the air supply valve 111 can be opened and the displacement amount is detected. The rotation angle is detected by the sensor 113.

In addition, the air supply valve 111 opened by the rotation of the rotary shaft 112 is a vacuum pump together with the air and water vapor in the tank 103 which is sucked into the suction pipe 107 while the outside air is naturally sucked ( 108) is inhaled.

The vacuum pressure applied to the inside of the tank 103 by the external air naturally sucked into the air supply valve 111 as described above is increased from the tank 103 to the vacuum pump 108 by the amount of air introduced into the air supply valve 111. The suction force which is sucked falls and the vacuum pressure in the tank 103 falls.

Therefore, while the vacuum pressure in the tank 103 is lowered by the temperature and pressure relationship of the steam table, the temperature in the tank 103 is increased to maintain a predetermined temperature range of the control box 109.

In addition, when the temperature inside the tank 103 rises to the set temperature range of the control box 109 by opening the air supply valve 111, the air supply valve 111 is controlled to maintain the set temperature range. It is closed by the instruction of the box 109.

That is, the air supply valve 111 is closed by the reverse rotation of the electric gear 118, the plurality of reduction gear groups 117, and the rotation member 115 by the reverse rotation of the driving member 119.

As described above, the air supply valve 111 is automatically closed by the instruction of the control box 109, so that the suction force of the vacuum pump 108 extends to the tank 103, whereby normal vacuum performance is exerted. .

Therefore, the vacuum pressure in the tank 103 is in a rising state and the temperature is in a falling state again.

By continuously repeating the operation of automatically opening and closing the air supply valve 111 by the instruction of the control box 109 as described above to maintain a constant temperature range set in the control box 109 tank 103 The internal temperature and vacuum pressure can be kept constant within a certain range, which enables vacuum drying of food residues that can be fermented and at the same time facilitates dry culture of microorganisms.

On the other hand, Figure 3 is a second embodiment showing the opening and closing means of the air supply valve of the present invention when the worm 122 inside the case 120 by the forward and reverse rotation of the drive member 119, the worm ( Since the worm gear 121 engaged with 122 is decelerated, the rotating member 115 can be easily rotated forward and reverse.

Therefore, since the air supply valve 111 can be opened and closed easily by the instruction of the control box 109 by the forward and reverse rotation of the rotating member 115, the embodiment is in accordance with the purpose of the present invention.

In addition, the driving member 119 of the first embodiment and the second embodiment has a stepping motor which is capable of forward and reverse rotation and easy to control the rotation angle, so that more accurate and reliable operation is considered.

The present invention is thus detected by the temperature sensor by having an air supply valve for automatically supplying the outside air to the vacuum pump by opening and closing the control box instructed in the suction pipe connecting the vacuum pump and the tank of the vacuum dryer If the sensing temperature in the tank is lower than the set temperature range of the control box, supply the outside air into the vacuum pump by the automatic opening of the air supply valve to weaken the vacuum performance on the tank and increase the temperature as the pressure in the tank falls. When the temperature in the tank reaches the set temperature, all the suction power of the vacuum pump is exerted on the tank by the automatic closing of the air supply valve so that the uniform temperature is maintained within the set temperature range by the normal vacuum performance. Keep tank temperature and vacuum pressure constant in the dryer It enables the vacuum drying of food wastes, which can be fermented, and at the same time has the beneficial effect of facilitating dry cultivation of microorganisms.

Claims (5)

A temperature sensing process of detecting the temperature inside the tank of the dryer by a temperature sensor; A temperature comparison process for comparing the detected temperature and the set temperature in the temperature sensing process by a comparator of the control box, When the detected temperature compared in the temperature comparison is lower than the set temperature range, by supplying the outside air into the vacuum pump, the vacuum performance to the tank is weakened and the vacuum pressure in the tank is lowered to increase the temperature. Opening of the air supply valve which automatically opens the air supply valve in accordance with the instruction of the control box, When the temperature in the tank reaches the set temperature range by the opening process of the air supply valve, the air supply valve automatically closes by the instruction of the control box so that the suction power of the vacuum pump reaches the tank and the normal vacuum performance is exhibited. Temperature control method of the vacuum dryer, characterized in that the closing process of the supply valve. If the sensing temperature in the tank detected by the temperature sensor is lower than the set temperature range of the control box, supplying the outside air into the vacuum pump weakens the vacuum performance on the tank and lowers the vacuum pressure in the tank to raise the temperature. When the temperature in the tank reaches the set temperature range, the air supply valve attached to the suction pipe connecting the vacuum pump and the tank so that all the suction power of the vacuum pump reaches the tank to achieve normal vacuum performance; And an opening and closing means of an air supply valve for automatically opening and closing the air supply valve by an instruction of a control box. The method of claim 2, The opening and closing means of the air supply valve is coupled to one side of the case is coupled to the rotary rod of the displacement sensor is attached to the upper portion and the rotating member coupled to the rotary shaft of the air supply valve on the lower portion; A driven gear coupled to the rotating member to rotate the rotating member; A plurality of reduction gear groups engaged with the driven gear to transmit the reduced rotational force to rotate the rotating member; Temperature control device of the vacuum dryer, characterized in that provided as a drive member for engaging the reduction gear and the electric gear of one side to transmit the rotational force to the reduction gear group. The method of claim 2, The opening and closing means of the air supply valve is coupled to one side of the case is coupled to the rotary rod of the displacement sensor is attached to the upper portion and the rotating member coupled to the rotary shaft of the air supply valve on the lower portion; A worm gear coupled to the rotating member to rotate the rotating member; Temperature control device of the vacuum dryer, characterized in that provided with a worm connected to the drive member engaged with the worm gear to rotate the worm gear. The method according to claim 3 and 4, The driving member is a temperature control device of the vacuum dryer, characterized in that provided with a stepping motor capable of forward, reverse rotation.