CN115185307A - Temperature control system applied to cooking food - Google Patents

Abstract

The invention discloses a temperature control system applied to cooking food, which comprises a heating appliance, a cold water supply device, a hot water supply device, a temperature control unit and a mold temperature controller, wherein the heating appliance comprises a cooling coil and a hollow pot body, and the cooling coil is arranged in the pot body; the cold water supply device is used for supplying cold water and is communicated with the cooling coil pipe through a first cooling circulating water pipeline, and a first water pumping device is arranged on the first cooling circulating water pipeline; the hot water supply device is used for supplying hot water and is communicated with the pot body through a hot water pipeline, and a second water pumping device is arranged on the hot water pipeline; the temperature control unit is used for detecting the temperature of hot water in the pot body; the heating and cooling system of the mold temperature machine and the hot water supply device are communicated with each other through a circulating temperature adjusting water pipeline, and the mold temperature machine adjusts the temperature of hot water entering the pot body through the temperature adjusting water pipeline according to the detection result of the temperature control unit, so that the accuracy of accurately adjusting the cooking temperature is achieved, the duration and degree of heating of cooked food are effectively controlled, and the taste of the cooked food is better.

Description

Temperature control system applied to cooking food

Technical Field

The invention relates to the field of cooking, in particular to a temperature control system applied to cooking food.

Background

In recent years, with the improvement of living standard of people, not only the nutritional value of food is concerned, but also the taste of the food is more emphasized. One of the cooking pots is equipment for cooking food, and the existing cooking pot generally cooks the food in the pot through a cooling coil in the cooking pot when cooking the food, but the cooking mode cannot accurately control the cooking temperature, and can only judge whether the duration of cooking is appropriate or not by estimating the surface color of the food material, the hardness of the food material and the like.

Disclosure of Invention

In view of the defects of the prior art, the present invention provides a temperature control system for cooking food, which can effectively control the accuracy of the cooking temperature and effectively control the duration of the cooking food.

The purpose of the invention is realized by adopting the following technical scheme:

temperature control system for cooking food, comprising:

the heating appliance comprises a cooling coil and a hollow pot body, wherein the cooling coil is arranged in the pot body;

the cooling water supply device is used for supplying cooling water, a first cooling circulating water pipeline is communicated with the cooling coil, and a first water pumping device is arranged on the first cooling circulating water pipeline so that the cooling water in the cooling water supply device can be circulated and introduced into the cooling coil and then flows back to the cooling water supply device;

the hot water supply device is used for supplying hot water and communicated with the pot body, and a hot water inlet pipeline is arranged on the hot water inlet pipeline so that hot water in the hot water supply device can enter the pot body to heat food;

the temperature control unit is used for detecting the temperature of hot water in the pot body;

and a circulating temperature adjusting water pipeline is communicated between a heating and cooling system of the mold temperature controller and the hot water supply device, and the mold temperature controller adjusts the temperature of hot water entering the temperature adjusting water pipeline according to the detection result of the temperature control unit so as to adjust the temperature of the hot water in the pot body.

Furthermore, the first water pumping device is arranged on a water inlet pipeline of the first cooling circulating water pipeline, a cooling water pipeline is communicated between the water outlet end of the first water pumping device and the pot body, and a first control valve is arranged on the cooling water pipeline and used for controlling the on-off of the cooling water pipeline and the pot body.

Furthermore, a cold water outlet pipeline is communicated between the cold water supply device and the pot body, and a third water pumping device is arranged on the cold water outlet pipeline, so that cold water in the pot body can be pumped into the cold water supply device.

Furthermore, a first filter is arranged on the cold water outlet pipeline and positioned between the third water pumping device and the pot body, and is used for filtering impurities of cold water entering the third water pumping device from the pot body.

Furthermore, a hot water outlet pipeline is communicated between the water inlet end of the second water pumping device and the pot body, a connecting water pipeline is communicated between the water outlet end of the second water pumping device and the hot water supply device, and a second control valve is arranged on the connecting water pipeline and used for controlling the connection and disconnection between the hot water outlet pipeline and the hot water supply device.

Furthermore, the temperature control system applied to cooking food also comprises a water cooler, and a second cooling circulating water pipeline is communicated between the water cooler and the pot body, so that cold water in the pot body can be circularly introduced into the water cooler and then flows back into the pot body.

Furthermore, a second filter is arranged on a water return pipeline of the second cooling circulating water pipeline and used for filtering impurities of cold water entering the water chilling unit from the pot body.

Furthermore, the temperature control unit comprises a control unit and a plurality of mutually independent temperature probes, and each temperature probe is used for detecting the temperature of the liquid in the pot body and feeding back the detection result to the control unit.

Furthermore, the cold water supply device is a cold water tank, and a first floating ball limit switch controlled by the control unit is arranged in the cold water tank and used for detecting the liquid level in the cold water tank.

Furthermore, the hot water supply device comprises a hot water pot, and a second floating ball limit switch controlled by the control unit is arranged in the hot water pot and used for detecting the liquid level in the hot water pot.

Compared with the prior art, the invention has the beneficial effects that:

when the temperature control system applied to cooking food is used, hot water in the hot water device is pumped by the second water pumping device to enter food in the cooking pot body in the pot body, the temperature of the hot water in the pot body is detected by the temperature control unit, and a certain amount of heat is lost in the process that the hot water enters the pot body from the hot water inlet pipeline, so that the temperature of the hot water in the pot body does not reach the set cooking temperature generally; when the temperature of the hot water in the pot body is slightly higher than the set cooking temperature, the temperature of the hot water entering the temperature adjusting water pipeline is reduced through the mold temperature controller, and the temperature of the hot water in the pot body can be neutralized to enable the temperature of the hot water in the pot body to reach the set cooking temperature value; when the temperature of the hot water in the pot body is greatly higher than the set cooking temperature, the first water pumping device pumps the cold water in the cold water supply device to circularly enter the cooling coil pipe in the pot body, so that the temperature of the hot water in the pot body reaches the set temperature value, and the invention can effectively control the accuracy of the cooking temperature and effectively control the duration and degree of heating of cooked food.

Drawings

FIG. 1 is a schematic structural diagram of the present invention.

In the figure: 10. a heating means; 101. a pan body; 1011. a temperature probe; 102. a cooling coil; 103. a third floating ball limit switch; 20. a cold water supply device; 201. a first float ball limit switch; 21. a second water inlet pipe; 30. a hot water supply device; 301. a second floating ball limit switch; 31. a hot water inlet pipeline; 310. a second water pumping device; 32. a hot water outlet pipeline; 33. a water connection pipeline; 331. a second flow sensor; 332. a second control valve; 34. a first water inlet pipe; 40. a mold temperature controller; 41. a temperature regulation water pipeline; 50. a first cooling circulation water line; 501. a first water pumping device; 502. a third control valve; 51. a cooling water line; 511. a first control valve; 512. a first flow sensor; 52. a cold water outlet pipeline; 521. a third water pumping device; 522. a first filter; 523. a third flow sensor; 60. a second cooling circulation water line; 70. a water chiller; 71. and a cold water circulating pipeline.

Detailed Description

The present invention will be described with reference to the accompanying drawings and the detailed description, and it should be noted that, in the following description, various embodiments or technical features may be arbitrarily combined to form a new embodiment without conflict.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "horizontal", "vertical", "top", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; either directly or indirectly through intervening media, or through both elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

The implementation mode is as follows:

referring to fig. 1, the present invention shows a temperature control system for cooking food, which includes a heating appliance 10, a cold water supply device 20, a hot water supply device 30, a temperature control unit and a mold temperature controller 40. Wherein, the heating device 10 comprises a cooling coil 102 and a hollow pan body 101, the cooling coil 102 is arranged in the pan body 101; the cold water supply device 20 is used for supplying cold water, and a first cooling circulation water pipeline 50 is communicated between the cold water supply device 20 and the cooling coil 102, and a first water pumping device 501 is arranged on the first cooling circulation water pipeline 50, so that cold water in the cold water supply device 20 can be circulated and introduced into the cooling coil 102 and then flows back to the cold water supply device 20; the hot water supply device 30 is used for supplying hot water, a hot water inlet pipeline 31 is communicated with the pot body 101, and a second water pumping device 310 is arranged on the hot water inlet pipeline 31 so that the hot water in the hot water supply device 30 can enter the pot body 101 to heat food; the temperature control unit is used for detecting the temperature of hot water in the pot body 101; a circulating temperature adjusting water pipeline 41 is communicated between the heating and cooling system of the mold temperature controller 40 and the hot water supply device 30, and the mold temperature controller 40 adjusts the temperature of the hot water entering the temperature adjusting water pipeline 41 according to the detection result of the temperature control unit so as to adjust the temperature of the hot water in the pan body 101.

When the temperature control system applied to cooking food is used, hot water in the hot water supply device 30 is pumped by the second water pumping device 310 to enter food (food such as chicken legs or chicken wings) in the cooking pot body 101 in the pot body 101, the temperature of the hot water in the pot body 101 is detected by the temperature control unit, and the temperature of the hot water in the pot body 101 generally does not reach the set cooking temperature because a certain amount of heat is lost in the process of entering the pot body 101 from the hot water inlet pipeline 31, and at the moment, the hot water needs to be input into the temperature adjusting water pipeline 41 through the mold temperature controller 40 and circularly enters the pot body 101 to supplement the temperature of the hot water in the pot body 101 to reach the set cooking temperature value; when the temperature of the hot water in the pot body 101 is slightly higher than the set cooking temperature, the temperature of the hot water entering the temperature adjusting water pipeline 41 is adjusted to be lower through the mold temperature controller 40, and the temperature of the hot water in the pot body 101 is neutralized, so that the temperature of the hot water in the pot body 101 can reach the set cooking temperature value; when the temperature of the hot water in the pot body 101 is greatly higher than the set cooking temperature, the first water pumping device 501 pumps the cold water in the cold water supply device 20 to circularly enter the cooling coil 102 in the pot body 101, so that the temperature of the hot water in the pot body 101 reaches the set temperature value, and the invention can effectively control the accuracy of the cooking temperature and effectively control the duration and degree of heating of the cooked food.

It should be noted that the mold temperature controller 40 is composed of a water tank, a controller, a heating and cooling system, a power transmission system, a liquid level control system, a temperature sensor and other devices, in general, a pump in the power transmission system enables hot fluid to reach the temperature-adjusting water pipeline 41 from the water tank with a built-in heater and cooler and enter the pot body 101, and then the hot fluid returns to the water tank from the pot body 101 through the circulating temperature-adjusting water pipeline 41, the temperature sensor detects the temperature of the hot fluid and transmits data to the controller of the mold temperature controller 40, and the controller adjusts the temperature of the hot fluid, thereby indirectly adjusting the temperature of the hot water in the pot body 101; if the temperature of the hot water in the pot body 101 exceeds the temperature value set by the temperature control unit for cooking food, the controller opens the electromagnetic valve to be communicated with the cold water inlet pipe of the mold temperature controller 40, and reduces the temperature of the hot water entering the temperature adjusting water pipeline 41, namely the temperature in the pot body 101 returns to the set value; if the temperature of the hot water in the pot body 101 is lower than the set value, the controller turns on the heater to circularly keep the temperature.

In this embodiment, the temperature control unit includes a control unit and a plurality of independent temperature probes 1011, and each temperature probe 1011 is used for detecting the temperature of the liquid in the pot body 101 and feeding back the detection result to the control unit. Wherein, the control unit is PLC control system, and when a plurality of temperature probe 1011 were used for detecting the liquid temperature in the pot body 101 and fed back in PLC control system with its result that detects, PLC control system feeds back in the control system of mould temperature machine 40 according to the result that each temperature probe 1011 fed back to adjust the hot water temperature who gets into in the temperature regulation water pipeline 41, and then reach the effect of the hot water temperature in the accurate regulation pot body 101.

It is worth noting that the temperature of the liquid in the pot body 101 can be detected more accurately by the plurality of independent temperature probes 1011.

In this embodiment, a hot water outlet pipeline 32 is further communicated between the water inlet end of the second water pumping device 310 and the pan body 101, a connecting water pipeline 33 is communicated between the water outlet end of the second water pumping device 310 and the hot water supply device 30, and a second control valve 332 is disposed on the connecting water pipeline 33 for controlling on/off between the hot water outlet pipeline 32 and the hot water supply device 30. That is, it can be understood that after the food in the pot body 101 is cooked, the hot water in the pot body 101 is pumped into the hot water supply device 30 for standby through the second water pumping device 310. The second water pumping device 310 of the present embodiment is a water pump, the hot water supply device 30 includes a heating plate and a hot water boiler, a first water inlet pipe 34 connected to the inner cavity of the hot water boiler is disposed on the hot water boiler, and the first water inlet pipe 34 is used for inputting outside tap water into the hot water boiler to be heated and stored for standby through the heating plate.

Of course, in other embodiments, the second pumping device 310 may also be a vane pump or a displacement pump, and the hot water supply device 30 may also be a hot water boiler, and the hot water is delivered into the hot water boiler through the first water inlet pipe 34 for storage and standby, which is not limited herein. Therefore, it is obvious to those skilled in the art that the structures of the second water pumping device 310 and the hot water supply device 30 can be modified reasonably, and the modifications also fall into the protection scope of the present invention.

In this embodiment, a second float limit switch 301 controlled by the control unit is disposed in the hot water boiler for detecting the liquid level in the hot water boiler. Specifically, the second float limit switch 301 has two, one is at the low liquid level in the hot water pot, and the other is at the high liquid level in the hot water pot, when the liquid level in the hot water pot reaches the high liquid level, the second float limit feedback signal of the high liquid level controls the valve of the electric ball valve on the first water inlet pipe 34 to close in the PLC control system; when the liquid level in the hot water pot reaches a low liquid level, the PLC control system controls the valve of the electric ball valve on the first water inlet pipeline 34 to be opened by the second floating ball limit feedback signal of the low liquid level so as to automatically feed water into the hot water pot, and the effect of automatically controlling the liquid level in the hot water pot is achieved.

In this embodiment, the first water pumping device 501 is disposed on the water inlet pipeline of the first cooling circulation water pipeline 50, a cooling water pipeline 51 is communicated between the water outlet end of the first water pumping device 501 and the pan body 101, and a first control valve 511 is disposed on the cooling water pipeline 51 for controlling the connection and disconnection between the cooling water pipeline 51 and the pan body 101. That is, it can be understood that after the food in the pot body 101 is cooked and the hot water in the pot body 101 is pumped into the hot water pot, the cold water in the cold water supply device 20 needs to be pumped by the first water pumping device 501 into the pot body 101 to soak the food and be rapidly cooled, so as to achieve the purpose of sterilization. Of course, the third control valve 502 is disposed on the first cooling circulation water pipeline 50, and the third control valve 502 prevents the cold water in the cold water supply device 20 from entering the first cooling circulation water pipeline 50 when the cold water in the cold water supply device 20 enters the cooling water pipeline 51. That is, when the first water pumping device 501 pumps the cold water in the cold water supply device 20 through the cooling water pipe 51 to enter the pot 101 for soaking food and cooling rapidly, the valve of the third control valve 502 is closed.

On the basis of the structure, the invention also comprises a water cooler 70, and a second cooling circulating water pipeline 60 is communicated between the water cooler 70 and the pot body 101, so that the cold water in the pot body 101 can be circularly led into the water cooler 70 and then flows back into the pot body 101. After the first water pumping device 501 pumps the cold water in the cold water supply device 20 and enters the pot body 101 through the cooling water pipeline 51 to soak the food, the water cooling machine 70 is started to circulate the cold water in the water cooling machine 70 into the pot body 101. That is, it can be understood that the cooling effect of the food inside the pot body 101 is adjusted by the second cooling circulation water pipe 60 between the water cooler 70 and the pot body 101, so that the food inside the pot body 101 achieves the effect of temperature control during the cooling process.

In this embodiment, the cold water supply device 20 is a cold water tank, and certainly, a second water inlet pipe 21 communicated with the inner cavity is disposed on the cold water tank for inputting outside tap water into the cold water tank for storage and standby. Of course, a cold water circulation line 71 is connected between the cold water tank and the cold water machine 70, and the temperature of the tap water in the cold water tank is lowered by the cold water machine 70, thereby changing the tap water in the cold water tank into cold water.

It should be noted that the cooling and temperature controlling principle of the water chiller 70 belongs to the prior art and is not explained herein.

Of course, in other embodiments, the cold water supply device 20 may also be a cold water pot or a cold water pool, which is not limited herein, and therefore, it should also fall within the protection scope of the present invention for those skilled in the art to reasonably modify the structure of the cold water supply device 20.

In this embodiment, a first float limit switch 201 controlled by a control unit is disposed in the cold water tank for detecting a liquid level in the cold water tank. Specifically, the number of the first floating ball limit switches 201 is two, one is at a low liquid level in the cold water tank, the other is at a high liquid level in the cold water tank, and when the liquid level in the cold water tank reaches the high liquid level, a first floating ball limit feedback signal of the high liquid level controls the valve of the electric ball valve on the second water inlet pipeline 21 to be closed in the PLC control system; when the liquid level in the cold water tank reaches a low liquid level, a first floating ball limit feedback signal of the low liquid level controls a valve of an electric ball valve on the second water inlet pipeline 21 to be opened by the PLC control system so as to automatically feed water into the cold water tank, and the effect of automatically controlling the liquid level in the cold water tank is achieved.

In this embodiment, the pot body 101 is also provided with three third float limit switches 103 controlled by the control unit, and the three third float limit switches 103 are respectively located at the low liquid level, the medium liquid level and the high liquid level in the pot body 101, and those skilled in the art can understand that the ratio relationship between the liquid in the pot body 101 and the food can be conveniently controlled by the third float limit switches 103 at the low liquid level, the medium liquid level and the high liquid level.

In the embodiment, a cold water outlet pipeline 52 is communicated between the cold water supply device 20 and the pot body 101, and a third water pumping device 521 is arranged on the cold water outlet pipeline 52, so that cold water in the pot body 101 can be pumped into the cold water supply device 20. That is, it can be understood that after the food in the pot body 101 is completely cooled, the third pumping device 521 is activated to pump the cold water in the pot body 101, so that the cold water in the pot body 101 enters the cold water tank through the cold water outlet pipe 52. The third pumping device 521 of this embodiment is a water pump. Of course, in other embodiments, the third pumping device 521 can also be a vane pump or a displacement pump, which is not limited herein. Therefore, it is within the scope of the present invention for those skilled in the art to reasonably modify the structure of the third pumping device 521.

In this embodiment, the cold water outlet pipe 52 is provided with a first filter 522, and the first filter 522 is located between the third pumping device 521 and the pot body 101 and is used for filtering impurities in the cold water entering the third pumping device 521 from the pot body 101. Because the food in the pot body 101 can generate more foam impurities after being heated and cooled, the impurities in the pot body 101 can be prevented from entering the third pumping device 521 through the first filter 522, and the service life of the third pumping device 521 is prevented from being influenced.

In this embodiment, a second filter is disposed on the water return pipeline of the second cooling circulation water pipeline 60, and is used for filtering impurities in the cold water entering the water chiller 70 from the pot body 101. That is, the impurities in the pot body 101 can be prevented from entering the water cooler 70 through the second filter, and the service life of the water cooler 70 is prevented from being influenced. The second filter is the same as the first filter 522, so that the number of the filters can be reduced, and the cost can be saved.

In this embodiment, the first control valve 511, the second control valve 332 and the third control valve 502 are all electric ball valves and are controlled by a PLC control system, so that the temperature control system of the present invention is in an automatic state in the whole process of use, thereby improving the working efficiency of the present invention and saving labor.

In this embodiment, the cooling water pipeline 51 is further provided with a first flow sensor 512 controlled by the control unit, the first flow sensor 512 is located between the first control valve 511 and the pot body 101, and the first flow sensor 512 is used for detecting the flow of the cooling water entering the pot body 101 through the cooling water pipeline 51.

In this embodiment, the connection water line 33 is further provided with a second flow sensor 331 controlled by the control unit, the second flow sensor 331 is located between the second control valve 332 and the hot water boiler, and the second flow sensor 331 is used for detecting the flow of hot water entering the hot water boiler through the connection water line 33.

In this embodiment, the cold water outlet pipeline 52 is provided with a third flow sensor 523 controlled by the control unit, the third flow sensor 523 is located between the third pumping device 521 and the cold water tank, and the third flow sensor 523 is configured to detect the flow of cold water entering the pot body 101 through the cold water outlet pipeline 52.

In this embodiment, temperature sensors controlled by the control unit are disposed in the cold water tank and the hot water boiler, the temperature sensor in the cold water tank is used for detecting the temperature in the cold water tank, and the temperature sensor in the hot water boiler is used for detecting the temperature in the hot water boiler, so that a user can detect the temperatures in the cold water tank and the hot water boiler in real time.

The above embodiments are only preferred embodiments of the present invention, and the scope of the present invention should not be limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are intended to be covered by the claims.

Claims (10)

1. Temperature control system for cooking food, characterized in that it comprises:

the heating appliance (10) comprises a cooling coil (102) and a hollow pot body (101), wherein the cooling coil (102) is arranged in the pot body (101);

the cooling water supply device (20) is used for supplying cooling water, a first cooling circulating water pipeline (50) is communicated with the cooling coil (102), and a first water pumping device (501) is arranged on the first cooling circulating water pipeline (50) so that the cooling water in the cooling water supply device (20) can be circulated and introduced into the cooling coil (102) and then flows back into the cooling water supply device (20);

the hot water supply device (30) is used for supplying hot water, a hot water inlet pipeline (31) is communicated with the pot body (101), and a second water pumping device (310) is arranged on the hot water inlet pipeline (31) so that the hot water in the hot water supply device (30) can enter the pot body (101) to heat food;

the temperature control unit is used for detecting the temperature of hot water in the pot body (101);

and a mold temperature controller (40), wherein a circulating temperature adjusting water pipeline (41) is communicated between a heating and cooling system of the mold temperature controller (40) and the hot water supply device (30), and the mold temperature controller (40) adjusts the temperature of hot water entering the temperature adjusting water pipeline (41) according to the detection result of the temperature control unit so as to adjust the temperature of the hot water in the pot body (101).

2. The temperature control system for cooking food according to claim 1, wherein the first water pumping device (501) is disposed on a water inlet pipeline of the first cooling circulation water pipeline (50), a cooling water pipeline (51) is connected between a water outlet end of the first water pumping device (501) and the pot body (101), and a first control valve (511) is disposed on the cooling water pipeline (51) for controlling the connection and disconnection between the cooling water pipeline (51) and the pot body (101).

3. The temperature control system for cooking food according to claim 1, wherein a cold water outlet pipe (52) is connected between the cold water supply device (20) and the pot body (101), and a third water pumping device (521) is arranged on the cold water outlet pipe (52) so that the cold water in the pot body (101) can be pumped into the cold water supply device (20).

4. The temperature control system for cooking food according to claim 3, wherein said cold water outlet pipe (52) is provided with a first filter (522), said first filter (522) being located between said third pumping device (521) and the pan body (101) for filtering impurities from the cold water entering from said pan body (101) into said third pumping device (521).

5. The temperature control system for cooking food according to claim 1, wherein a hot water outlet pipe (32) is further connected between the water inlet end of the second water pumping device (310) and the pan body (101), a connecting water pipe (33) is connected between the water outlet end of the second water pumping device (310) and the hot water supply device (30), and a second control valve (332) is disposed on the connecting water pipe (33) for controlling the connection and disconnection between the hot water outlet pipe (32) and the hot water supply device (30).

6. The temperature control system for cooking food according to claim 1, further comprising a water cooler (70), wherein a second cooling circulation water pipeline (60) is communicated between the water cooler (70) and the pot body (101) so that the cold water in the pot body (101) can circulate into the water cooler (70) and then flow back into the pot body (101).

7. The temperature control system for cooking food as claimed in claim 6, wherein a second filter is provided on a return pipe of the second cooling circulation water pipe (60) for filtering foreign substances of the cold water introduced from the pot (101) into the water cooler (70).

8. The temperature control system for cooking food as claimed in claim 1, wherein the temperature control unit comprises a control unit and a plurality of independent temperature probes (1011), each temperature probe (1011) is used for detecting the temperature of the liquid in the pot (101) and feeding back the detection result to the control unit.

9. The temperature control system for cooking food according to claim 8, wherein the cold water supply device (20) is a cold water tank, and a first float limit switch (201) controlled by the control unit is arranged in the cold water tank for detecting the liquid level in the cold water tank.

10. Temperature control system for cooking food according to claim 8, characterized in that said hot water supply means (30) comprise a hot water boiler inside which a second float limit switch (301) controlled by said control unit is arranged for detecting the level of liquid inside said boiler.

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