KR100758562B1 - A heating apparatus for soybean milk - Google Patents

Abstract

An apparatus for heating soybean milk is provided to prevent scorching of the soybean milk by over heating by raising the overall temperature of the soybean milk at constant within a short time using steam. A soybean milk heating apparatus comprises: a steam generator(10) for generating and supplying steam; a steam supply part(20) for controlling the supply of steam generated at the steam generator; a heating part(40) for mixing soybean milk supplied from the outside and steam supplied through the steam supply part and then heating the mixture; a control part(50) for measuring the temperature of the heated soybean milk and outputting a control signal by the measured result; and a storage part(70) for storing the heated soybean milk. The steam supply part contains a steam feed valve(30) for regulating the supply of steam, an auxiliary valve(32a,32b,32c) for controlling the amount of steam supplied through the steam supply valve and a control motor(34a,34b,34c) for controlling the opening degree of the auxiliary valve.

Description

A heating apparatus for soybean milk}

1 is a flow chart showing a general tofu manufacturing method.

2 is a view showing the configuration of an embodiment of a soymilk heating apparatus according to the present invention.

3 is a view showing a configuration of a first heater used in the soymilk heating apparatus according to the present invention.

4 is a view showing an installation state of a first temperature sensor used in the soymilk heating apparatus according to the present invention.

Explanation of the main symbols used in the drawings

10: steam boiler 30: steam supply valve

32a, 32b, 32c: first, second and third auxiliary valve

34a, 34b, 34c: first, second and third control motors

35a, 35b, 35c, 35d: first, second, third and fourth soymilk supply pipes

42a, 42b, 42c: first, second and third heaters

52a, 52b, 52c: first, second and third temperature sensors

60 controller 70 heat container

The present invention relates to a soymilk heating apparatus, and more particularly, to a soymilk heating apparatus capable of heating the soymilk quickly by using steam to heat the soymilk used for the production of tofu and to prevent the pressing by overheating.

Tofu is a food produced using soybean as a main raw material, and it is recognized as a healthy food and is frequently used.

A general known tofu manufacturing method will be described with reference to FIG. 1.

Soybean, which is the raw material of tofu, is stored in a storage tank and weighed by a meter, etc. as needed, and then passed through the stone and washing machine by a certain amount in order to remove stones and other impurities contained in the bean and to clean it at the same time. (L1 )

After that, the washed beans are supplied into the soybeans tank by hand or by pump, and soaked in water for about 8 hours in summer and about 14 hours in winter, so that the beans contained in the soybeans tank are soaked in water. (L2)

As such, when soybeans have sufficient soaking in the soybean soaking tank, they are finely ground using a grinder to make soybean water. (L3)

At this time, soybeans should be fine particles to remove the odor during the production of tofu and can produce tofu with good elasticity while savory taste.

When the soybean is obtained by the above process, the soybean is separated from the soybean using a filter such as a centrifuge to obtain pure soybean (hereinafter referred to as soymilk), which is collected separately and used for necessary purposes. (L4 )

The filtered soymilk thus obtained is transported to a steamer, heated at a constant temperature (approximately 95 to 100 ° C) for a predetermined time, heated, and then coagulated by adding a coagulant (salt water) in a coagulation container to obtain a tofu. (L5)

When the tofu is obtained by the above-described process, the tofu of the tofu is placed in a mold in a predetermined amount, compressed, and dehydrated to obtain tofu of a desired size. (L6, L7)

When preparing tofu by performing the above-described process, there were the following problems.

Soy milk and soy milk are separated by centrifugation, and the soy milk separated is heated to a constant temperature (about 95 to 100 ° C.).

The heating process of soymilk is performed by operating an electric heater or a gas heater after storing the soymilk in a container.

At this time, there was a problem in that the temperature distribution was not constant throughout the entire vessel to allow the heat of the electric heater and the gas heater to directly contact the vessel in which the soymilk was stored.

That is, one side of the container in which the soymilk is stored is close to the electric heater and the gas heater, so that the heat generated from the heater directly touches to form a high temperature, but the other part is at room temperature until the heat is conducted, so the soymilk storage container There was a problem that the soymilk heating in the inside is not generated uniformly.

In particular, the portion close to the heater is directly heated to a high temperature of 300 ~ 400 ℃ the heating temperature of the heater has a problem that the nutrients of soy milk is destroyed.

In addition, the phenomenon that the soy milk sticks to the high temperature occurs there was a problem that the problem of maintaining the cleanliness of the stirring device and the heating device.

The present invention has been made to solve the above problems, it is an object of the present invention to provide a soymilk heating device for heating soymilk using steam in performing the process of heating soymilk for the production of tofu.

In addition, it is an object of the present invention to provide a soymilk heating apparatus that can prevent the overheating of soymilk and the soymilk can be prevented by heating the soymilk using a steam not exceeding the maximum temperature of 100 ℃.

In addition, it is an object of the present invention to provide a soymilk heating apparatus that can increase the temperature of the soymilk uniformly in a rapid time by sequentially increasing the temperature of the soymilk using steam.

In order to achieve the above object, the soymilk heating apparatus according to the present invention is a device for storing soymilk separated by centrifugal separation from soy milk and soy milk obtained by pulverizing soybeans, and generating and supplying steam. A steam generator, a steam supply unit which is opened and closed by external control to control supply of steam generated by the steam generator, a heating unit which mixes and heats soymilk supplied from the outside with steam supplied through the steam supply unit, and A control unit for measuring the temperature of the soymilk heated in the heating unit and outputs a control signal according to the measurement result, and a storage unit for storing the soymilk heated to the set temperature by the heating unit.

The steam supply unit is a steam supply valve for regulating the supply of steam generated in the steam generating unit, an auxiliary valve that is opened by external control to control the amount of steam supplied through the steam supply valve, the opening degree of the auxiliary valve It consists of a control motor installed to control it.

Preferably, the auxiliary valve is provided in plurality.

The control motor is composed of a stepping motor.

The heating unit is composed of an inlet tube into which soymilk is introduced, a heating body in which the soymilk introduced through the inlet tube and steam introduced through the auxiliary valve are mixed and heat-exchanged, and a discharge tube which discharges the heated soymilk.

Soymilk supply pipe is connected to the input pipe and the discharge pipe of the heating unit.

The control unit is installed in the soymilk supply pipe connected to the heating unit for measuring the temperature of the soymilk discharged from the heating unit and outputs a signal corresponding to the measured value, the control according to the temperature value measured by the temperature sensor It is composed of a controller that outputs a control signal of the motor.

Referring to the drawings in detail the configuration of an embodiment of the present invention soymilk heating apparatus as follows.

2 is a configuration diagram showing the configuration of a soymilk heating apparatus according to the present invention, a steam boiler 10 for generating and supplying steam by evaporating moisture using heat generated by the combustion of electricity or gas is provided. A steam supply valve 30 constituting the steam supply unit 20 is provided in the middle of the steam main supply pipe 15 installed in the steam boiler 10, and the steam boiler 10 is opened and closed by opening and closing the steam supply valve 30. To control the supply of steam generated in

First, second, and third auxiliary valves 32a, 32b, and 32c are provided in parallel at the end of the steam main supply pipe 15 in which the steam supply valve 30 is installed. The three auxiliary valves 32a, 32b, and 32c are provided with first, second and third control motors 34a, 34b and 34c, respectively, according to the amount of operation pulses input to the control motor from the outside and the order of operation pulse input. The amount of operation and direction of operation are changed and the degree of opening and closing of the auxiliary valve is controlled.

In this case, although the first, second and third auxiliary valves are shown in the drawings, the number of auxiliary valves is not limited to the description of the drawings and may be increased as necessary.

Preferably, the first, second and third control motors 34a, 34b, 34c are configured as stepping motors in which the operation amount and the operation direction are changed according to externally input pulses.

One end of the first, second and third auxiliary valves 32a, 32b and 32c is connected to the first, second and third heaters 42a, 42b and 42c for allowing steam and soymilk to exchange heat.

3 is a view showing the configuration of the first heater, as shown in the drawing, the first heater 42a is connected to the first inlet pipe 44b for injecting soymilk and the first inlet pipe 44b. It is composed of a first heating pipe (44a) is mixed with the steam discharged through the auxiliary valve 32a and the heat exchange is introduced, the first discharge pipe (44c) for discharging the heated soymilk mixed with steam, 'B' form.

Since the 2nd and 3rd heaters 42b and 42c have the same structure as the 1st heater 42a, detailed description is abbreviate | omitted.

The first, second and third heaters 42a, 42b and 42c connected to the respective auxiliary valves are connected to the input pipe and the discharge pipe by the second, third and fourth soymilk supply pipes 35b, 35c and 35d. Each time it passes through one heater, the temperature of the soymilk can be raised sequentially.

Further, the first, second and third are respectively located in the middle of the second, third and fourth soymilk supply pipes 35b, 35c and 35d connecting the first, second and third heaters 42a, 42b and 42c. Temperature sensors 52a, 52b, and 52c are installed to measure the temperature of the soymilk heated in the heater and then input a signal corresponding to the measured value to the controller 60.

FIG. 4 is a view showing an installation state of the first temperature sensor, in which a first temperature sensor 52a is disposed in the middle of the second soymilk supply pipe 35b connecting the first and second heaters 42a and 42b. It is shown that is installed using.

Since the installation state of the 2nd and 3rd temperature sensors 52b and 52c is the same as that of a 1st temperature sensor, detailed description is abbreviate | omitted.

The controller 60 controls the amount of pulses input to the first, second and third control motors 34a, 34b, 34c and the pulse input sequence in accordance with the signal output from the temperature sensor, so that the heating temperature required by each heater is maintained. The opening and closing amount of the auxiliary valve is changed to obtain.

Referring to the operation of one embodiment of the soymilk heating apparatus according to the present invention configured as described above are as follows.

First, the steam boiler 10 is operated to generate steam. The steam boiler 10 in which a heating device such as a gas heater or an electric heater is built in operates the heating device to vaporize moisture supplied from the outside of the boiler, and the vaporized steam is installed in the steam boiler 10. It is supplied to the outside through the steam main supply pipe (15).

The steam supplied from the steam boiler 10 has a temperature of 100 ° C., which is a boiling point temperature of water.

At this time, the steam main supply pipe 15 of the steam boiler 10 is provided with a steam supply valve 30, when the steam is required to open the steam supply valve 30 and when the use of steam is finished steam supply valve ( 30) close to stop the supply of steam.

Steam supplied through the steam supply valve 30 flows into the first, second and third auxiliary valves 32a, 32b, 32c connected in parallel to the ends of the steam main supply pipe 15, respectively.

The opening degree of the first, second and third auxiliary valves 32a, 32b, 32c is changed by the operation of the first, second, and third control motors 34a, 34b, 34c, Since the supply amount of steam is changed accordingly, the amount of steam supplied is adjusted to heat the soymilk according to the set temperature.

Soymilk supplied to the first heater 42a through the first soymilk supply pipe 35a initially maintains a normal temperature. When the 127 pulses per second are input to the first control motor 34a by the controller 60 to heat the soymilk supplied to the first heater 42a, the first auxiliary valve 32a is opened 77.4 ° and the first heater is opened. Steam flows into the first heating tube 44a of 42a.

The steam introduced into the first heating tube 44a is mixed with the soymilk introduced into the input pipe 44b of the first heater 42a through the first soymilk supply pipe 35a and then heat exchanged to a temperature set by the user. The soymilk is heated (75 ° C.), and the heated soymilk flows out into the discharge pipe 44c of the first heater 42a and flows into the second heater 42b through the second soymilk supply pipe 35b. The time required for heating soymilk to 75 ° C. is approximately 1.4 seconds.

Thereafter, the soymilk introduced into the input pipe of the second heater 42b through the second soymilk supply pipe 35b has a temperature of 75 ° C at the time of inflow. The second heater 42b is set to heat the soymilk to 93 ° C. When the controller 60 inputs 78 pulses per second to the second control motor 34b, the second auxiliary valve 32b is 47.5. The steam is introduced into the second heating tube of the second heater 42b while being opened, and then mixed with the soy milk to heat the soy milk.

Soymilk is discharged to the third soymilk supply pipe (35c) in the state heated to 93 ℃ by the steam introduced into the second heater (42b) through the third soymilk supply pipe (35c) to the input pipe of the third heater (42c). Inflow.

The time required for heating soymilk from 75 ° C to 93 ° C is 1.8 seconds.

The third heater 42c is set to heat the soymilk to 100 ° C. When the controller 60 inputs 54 pulses per second to the third control motor 34c, the third auxiliary valve 32c is 33. Steam is introduced into the third heating tube of the third heater 42c while being opened.

Soymilk by the steam introduced into the third heater (42b) is discharged to the fourth soymilk supply pipe (35d) in a state heated to 100 ℃ and stored in the heat storage container 70 to be used for tofu production.

The time required for heating soymilk from 93 ° C to 100 ° C is 1.8 seconds.

Since the steam used to heat the soy milk has a temperature of 100 ° C., which is the boiling point temperature of water, the temperature of the soy milk is not heated to 100 ° C. or more, and thus, soymilk and nutrient destruction are not generated.

As described above, the second, third and fourth soymilk supply pipes 35b connecting the first, second and third heaters 42a, 42b and 42c to determine the heating degree of the soymilk heated by each heater as described above The first, second and third temperature sensors 52a, 52b, and 52c installed in the intermediate portion of the 35c and 35d measure the temperature of the soymilk and input the corresponding signal to the controller 60.

That is, in the automatic initial stage, the pulse set according to the initially set temperature is input to the first, second, and third control motors 34a, 34b, 34c to operate, but the temperature around the apparatus, the process of supplying steam, and the movement of heated soymilk During the process, the temperature may be lower than the initially set temperature due to heat radiation.

Therefore, when the temperature of the soymilk measured by the first, second and third temperature sensors 52a, 52b, 52c is lower than the initially set temperature, the controller 60 is connected to the control motor so that the opening degree of the auxiliary valve is increased. Increase the pulse input amount.

In addition, when the temperature of the soymilk measured by the first, second and third temperature sensors 52a, 52b, 52c is higher than the initially set temperature, the controller 60 controls the control motor so that the opening degree of the auxiliary valve is reduced. Reverses the pulse input order.

As described above, the operation process of the embodiment according to the present invention is summarized in the following [Table 1].

PID data Valve Steam pressure stepping motor pulse Valve phase Start temperature Result temperature Time 1st 6 kg / cm 3 127 pps 77.4 ° 14 ℃ 75 ℃ 1.4 sec 2nd 5 kg / cm 3 78 pps 47.5 ° 75 ℃ 93 ℃ 1.8 sec 3rd 5 kg / cm 3 54 pps 33 ° 93 ℃ 100 ℃ 1.8 sec

The above table is an experimental value when 1.5 liters of water having an inlet temperature of 14 ° C. is injected using a steam boiler having a normal pressure of 6 kg / cm 3.

Steam is used while achieving the primary heating temperature of 75 ° C., so that the steam pressure in the boiler is lowered to 5 kg / cm 3.

The present invention configured as described above, in performing the process of heating the soy milk for the production of tofu so as to heat the soy milk using a steam that does not exceed the maximum temperature 100 ℃ to prevent the overheating of soy milk by pressing Has an effect.

In addition, by using steam to increase the temperature of the soymilk sequentially has the effect of allowing the temperature of the whole soybean milk to be constantly raised in a short time.

Claims (7)

delete A device for storing soymilk separated by centrifugal separation in soy milk and soy milk obtained by crushing soybeans and heating the stored soymilk, A steam generator for generating and supplying steam; A steam supply unit which is opened and closed by external control to control supply of steam generated by the steam generator; Heating unit for heating by mixing the soymilk supplied from the outside with the steam supplied through the steam supply, A controller for measuring the temperature of the soymilk heated by the heating unit and outputting a control signal according to the measurement result; Including a storage unit for storing soymilk heated to a set temperature by the heating unit, The steam supply unit, a steam supply valve for regulating the supply of steam generated in the steam generating unit, an auxiliary valve for controlling the amount of steam which is opened by external control and supplied through the steam supply valve, and the auxiliary valve Soymilk heating apparatus, characterized in that consisting of a control motor that is installed to control the degree of opening. The method of claim 2, Soymilk heating apparatus, characterized in that the auxiliary valve is installed in plurality. The method of claim 2, Soymilk heating apparatus, characterized in that the control motor is composed of a stepping motor. The method of claim 2, The heating unit is an input tube into which soymilk is introduced, soymilk introduced through the input tube and steam introduced through the auxiliary valve are mixed with a heating tube for heat exchange, and a discharge tube for discharging the heated soymilk. Device. The method of claim 5, Soymilk heating apparatus, characterized in that the soymilk supply pipe is connected to the input pipe and the discharge pipe of the heating unit. The method of claim 6, The control unit A temperature sensor installed in a soymilk supply pipe connected to a heating unit for measuring a temperature of the soymilk discharged from the heating unit and outputting a signal corresponding to the measured value, and controlling the control motor according to the temperature value measured by the temperature sensor Soymilk heating apparatus comprising a controller for outputting a signal.

Images