A temperature-adjustable substitute tea brewing machine and its working method

Abstract

The present invention discloses a thermostatic substitute tea brewing machine and a working method thereof, which belongs to the technical field of substitute tea brewing equipment, and includes a control unit, a hot water unit, a thermostatic unit and a brewing unit; the hot water unit is used to prepare hot water, including a hot water container; the thermostatic unit is used to prepare water at different temperatures, including a thermostatic container and a cold water circulation system arranged around it; the brewing unit is used to brew tea, including a brewing container, in which a mesh tea bowl for holding substitute tea to be brewed is arranged; the control unit includes a main control system, including a flow control module and a temperature control module; the flow control module ensures the water supply; the temperature control module is used to ensure that the water temperature entering the brewing container meets the substitute tea brewing temperature. The present invention can accurately adjust parameters such as brewing temperature, brewing time, liquid-to-material ratio, etc., which is helpful to improve the brewing quality of substitute tea, has the advantages of automatic intelligence, safety and convenience, etc., and is suitable for brewing and drinking substitute tea.

Description

Technical Field

[0001] The invention belongs to the technical field of substitute tea brewing equipment and relates to a temperature-adjustable substitute tea brewing machine and a working method thereof. Background Art

[0002] Herbal tea refers to a product that uses roots, stems, leaves, buds, flowers, seeds and / or fruits of plants other than the genus Camellia in the family Theaceae as raw materials, and is processed and made in a similar way to tea (Camellia sinensis) for drinking. Herbal tea is different from traditional tea. The latter comes from plants of the genus Camellia in the family Theaceae, while the former comes from plants other than the genus Camellia in the family Theaceae. There are many types of herbal teas, and common ones include chrysanthemum, rose, buckwheat tea, honeysuckle, and gynostemma pentaphyllum. In addition, Yaowang tea, Taibai tea, wolfberry leaf tea, forsythia leaf tea, rattan tea, etc. are also herbal teas. In recent years, people have paid more and more attention to dietary health, and herbal teas have become increasingly popular among consumers because of their unique nutritional and health benefits and flavor.

[0003] There are many types of substitute teas, which contain complex chemical components and have high requirements for brewing equipment and processes (methods). Scholars from Beijing Union University found that brewing temperature, liquid-to-solid ratio (brewing water volume), and brewing times can affect the dissolution of chlorogenic acid and total flavonoids in chrysanthemum. Scholars from Zhengzhou Institute of Light Industry used high-resolution mass spectrometry to detect the dynamic changes of amino acids, essential oils (volatile oils), and flavonoid compounds during the brewing process of chrysanthemums, and found that the number of brewing times significantly affected the content of active ingredients and flavor characteristics. Scholars from Jiangsu Academy of Agricultural Sciences used inductively coupled plasma mass spectrometry to find that brewing time and brewing times significantly affected the dissolution of magnesium, potassium, calcium, aluminum, copper, manganese, zinc, and selenium in two types of chrysanthemum teas, Huangshan Gongju and Kunlun Snow Chrysanthemum. Scholars from Hebei Agricultural University found that brewing time, brewing times, and brewing temperature have a great influence on the dissolution of arsenic. Research by scholars from Fujian Agriculture and Forestry University has shown that factors such as brewing temperature, liquid-to-material ratio, and brewing time can affect the dissolution of saponins in Gynostemma pentaphyllum and the color and taste of the tea soup. A large number of studies have shown that factors such as brewing temperature, brewing time, liquid-to-material ratio, and brewing times have a great influence on the dissolution of active ingredients and harmful ingredients in substitute teas, as well as sensory properties. In the process of brewing substitute teas, using special brewing equipment that can adjust water temperature, water volume, and time, and accurately adjusting parameters such as brewing temperature, brewing time, liquid-to-material ratio, and brewing times are of great practical significance for the nutritional and health benefits of substitute teas and the maintenance of their unique taste and flavor.

[0004] In the prior art, Chinese patent CN 208113930 U discloses a processing and preparation system for a mixed instant instant tea substitute preparation, including a first raw material processing device and a second raw material processing device, wherein the first raw material processing device includes a first raw material cleaning machine, a first pulverizer, an extraction device, and a concentration device, and the second raw material processing device includes a second raw material cleaning machine, a second pulverizer, a drying box, and a wall breaking machine. Chinese patent CN 209629482 U discloses a multi-tea brewing machine, including a housing, in which a water storage chamber, a brewing chamber, a heating device, a pumping device, and an intelligent control device are respectively arranged, and the pumping device and the heating device are both arranged on the connecting pipe between the water storage chamber and the brewing chamber, and the heating device is an instant heating pipe, including an inner pipe and an outer pipe, and the outer wall of the outer pipe is provided with a heating layer, and a water flow channel is formed between the inner pipe and the outer pipe. Chinese patent CN 210144495U discloses a heat-insulating multi-tea brewing machine, which consists of a water storage chamber, a brewing chamber, an instant heating pipe, a pumping device, a finished product chamber and an intelligent control device. Chinese patent CN 204931349 U discloses a tea brewing machine, which consists of a top cover, a body, a tea brewing mechanism, a heat-insulating tea kettle, an electromagnetic heating mechanism and an ultrasonic cleaning mechanism. Chinese patent CN 209090884 U discloses a beverage brewing machine, which consists of a housing, a water tank, a heating device and a pressure pump. Chinese patent CN 103536198 A discloses a beverage brewing machine, whose temperature control unit includes a water storage area and a temperature regulating circuit, and the temperature regulating circuit is a commonly used heater.

[0005] In general, most of the existing technologies involve tea (Theaceae Camellia) brewing devices, and there are few reports on special equipment for brewing substitute tea (non-Theaceae Camellia). In addition, the existing technologies often have the following limitations or shortcomings: 1) The precise control of parameters such as brewing temperature, brewing time, liquid-to-material ratio, etc. is ignored, which is not conducive to exerting the nutritional and health effects of substitute tea, nor is it conducive to maintaining the unique taste and flavor of substitute tea. 2) Some existing technologies can only provide boiling water, and the water temperature cannot be adjusted, which may destroy heat-sensitive nutrients and active substances, increase the dissolution of harmful components such as heavy metals, and affect the taste and flavor of the beverage. 3) Some existing technologies use ordinary heaters, electric heating plates or instant heating pipes to heat the raw water to a specific temperature (non-boiling temperature) and then stop heating, and then use the resulting unboiled water directly as brewing water. This water temperature control method will cause consumers to drink unboiled water, which is not easy to meet safety and hygiene standards. 4) Some existing technologies only have heating devices but no cooling devices, and some existing technologies use natural cooling methods to lower the water temperature. The temperature adjustment process takes a long time and has low efficiency. 5) Some existing technologies only have water storage containers (for storing raw water) and brewing containers (for brewing tea, etc.), and the heating device (i.e. heat pipe) is installed on the connecting pipe between the water storage container and the brewing container. The efficiency of preparing warm water at a suitable temperature is restricted by factors such as the power, diameter of the heat pipe, and the flow rate and flow of the water, and the efficiency is low. 6) Many existing technologies do not have stirring devices, which is not conducive to the precise control of mass transfer and heat transfer processes. 7) Many existing technologies do not have a disinfection system, and boiling water cannot be used to disinfect the inner wall of the container and the pipe, nor can boiling water be used to rinse the substitute tea or wash away dust and other impurities that may adhere to the surface of the substitute tea. Summary of the invention

[0006] In order to overcome the shortcomings of the above-mentioned prior art, the purpose of the present invention is to provide a temperature-controlled substitute tea brewing machine and a working method thereof, which can adjust the brewing temperature, brewing time, liquid-to-material ratio, brewing times and other parameters during the substitute tea brewing process, thereby improving the brewing quality of the substitute tea and making the drinking of the substitute tea safer, more nutritious and delicious.

[0007] In order to achieve the above object, the present invention adopts the following technical solutions:

[0008] The invention discloses a temperature-adjustable substitute tea brewing machine, comprising a control unit, a hot water unit, a temperature-adjusting unit and a brewing unit;

[0009] The hot water unit is used to prepare hot water, comprising a hot water container, an electric heater is arranged in the hot water container, a water inlet device and a hot water outlet pipe are arranged on the hot water container, the water inlet of the hot water outlet pipe is placed in the hot water container, and the water outlet is divided into two branches, which are respectively connected to the temperature regulating unit and the brewing unit, a first flow control valve is arranged on the branch of the hot water outlet pipe connected to the temperature regulating unit, and a second flow control valve is arranged on the branch of the hot water outlet pipe connected to the brewing unit;

[0010] The temperature regulating unit is used to prepare water at different temperatures, and includes a temperature regulating container and a cold water circulation system arranged around the temperature regulating container. The temperature regulating container is connected to the brewing unit through a warm water pipe, and a warm water valve is arranged on the warm water pipe.

[0011] The brewing unit is used for brewing tea, and comprises a brewing container, in which a mesh tea bowl for holding the substitute tea to be brewed is arranged, and a tea outlet pipe is arranged at the bottom of the brewing container, and a tea valve is arranged on the tea outlet pipe;

[0012] The control unit includes a main control room and a touch screen located thereon. The main control room is provided with a main control system, which includes a flow control module and a temperature control module; wherein:

[0013] A flow control module, used to control the operation of pump I, pump II, the first flow control valve and the second flow control valve to ensure water supply;

[0014] The temperature control module is used to control the hot water container to prepare hot water, and to adjust the outlet water temperature in the thermostat container by controlling the cold water circulation system to ensure that the water temperature entering the brewing container meets the substitute tea brewing temperature.

[0015] Preferably, the cold water circulation system comprises a second water inlet pipe and a water inlet valve arranged on one side of the temperature regulating container, and a cold water outlet pipe and a water outlet valve arranged on the other side of the temperature regulating container; the second water inlet pipe and the cold water outlet pipe are interconnected to form a circulation jacket surrounding the temperature regulating container. Usually, room temperature (normal temperature) tap water is used as cooling water to supply the cold water circulation system.

[0016] Preferably, the water inlet device provided on the hot water container is a first water inlet pipe or a funnel with a cover;

[0017] A pump I is provided on the first water inlet pipe, and a pump II is provided at the outlet end of the hot water outlet pipe. The flow control module can control the operation of the pumps I and II.

[0018] Preferably, a thermostatic nozzle is provided on the top of the thermostatic container, and the thermostatic nozzle is connected to the water outlet of the hot water outlet pipe extending into the thermostatic container; an agitator I is also provided in the chamber of the thermostatic container, and the agitator I is connected to the motor I arranged at the bottom of the chamber, and a first sealing ring is provided at the connecting portion; and an insulation layer I is coated on the top wall of the thermostatic container.

[0019] Preferably, a brewing nozzle is provided on the top of the brewing container, and the brewing nozzle is connected to the water outlet of the hot water outlet pipe extending into the brewing container; a stirrer II is also provided in the chamber of the brewing container, and the stirrer II is connected to the motor II arranged at the bottom of the chamber, and a second sealing ring is provided at the connecting part; a tea bowl holder is also provided in the brewing container, and the mesh tea bowl is placed above the tea bowl holder; the outer walls of the brewing container are all coated with a heat-insulating layer II.

[0020] Preferably, a water level measuring device for real-time monitoring of water level is provided at the bottom of the hot water container, the temperature regulating container and the brewing container; the flow control module can receive the water level signal from the water level measuring device to control the operation of the flow control valve.

[0021] Preferably, a thermometer is also provided in the hot water container and the temperature adjustment container; the temperature control module can receive the temperature signal from the thermometer and adjust the temperature.

[0022] Preferably, an exhaust pipe with a cover for exhausting air is provided on the top of the hot water container, the temperature regulating container and the brewing container.

[0023] Preferably, a disinfection module and a timing module are also provided in the main control system;

[0024] A disinfection module, used to disinfect the temperature control container and the brewing container;

[0025] The timing module is used to control the working time of the electric heater in the hot water container, the working time of the stirrer II in the brewing container and the working time of the disinfection module.

[0026] The present invention also discloses a working method of the above-mentioned temperature-adjustable substitute tea brewing machine, comprising:

[0027] Select the tea substitute mode, self-made mode or water mode according to your needs, including:

[0028] Substitute tea mode: select the substitute tea type through the touch screen, weigh the substitute tea and put it in the mesh tea bowl, add tap water or purified water to the hot water container, and start the electric heater to heat the water to boil; spray the boiling water into the temperature-adjusting container for high-temperature disinfection, and also spray the boiling water into the brewing container for high-temperature disinfection, and rinse the substitute tea, and the disinfection waste water is discharged from the tea water outlet pipe, and new boiling water enters the thermostat container from the hot water container, and room temperature (normal temperature) tap water is used as cooling water for the cold water circulation system. Under the action of the cold water circulation system and the temperature control module, the boiling water temperature is quickly adjusted to the appropriate temperature required for brewing the substitute tea, and then enters the brewing container from the temperature-adjusting container to brew the substitute tea; after brewing, the substitute tea beverage can flow out from the tea water outlet pipe for drinking;

[0029] Self-prepared mode: set the water temperature, water volume and time parameters through the touch screen, weigh the substitute tea and put it into the mesh tea bowl, add tap water or purified water to the hot water container, and start the electric heater to start heating to make the water boil; spray the boiling water into the temperature regulating container and the brewing container for high-temperature disinfection, and rinse the substitute tea, the disinfection waste water is discharged from the tea water outlet pipe, and new boiling water enters the temperature regulating container from the hot water container, and room temperature (normal temperature) tap water is used as cooling water for the cold water circulation system. Under the action of the cold water circulation system and the temperature control module, the boiling water temperature is adjusted to the appropriate temperature required for brewing the substitute tea, and the boiling water temperature is quickly adjusted to the appropriate temperature required for brewing the substitute tea, and then enters the brewing container from the temperature regulating container to brew the substitute tea; after brewing, the substitute tea beverage can flow out from the tea water outlet pipe for drinking;

[0030] Water mode: including warm water sub-mode and boiling water sub-mode;

[0031] Warm water sub-mode: set the water temperature, water volume and time parameters through the touch screen, add tap water or purified water to the hot water container, and start the electric heater to heat the water to boil; spray the boiling water into the temperature-adjusting container and the brewing container for high-temperature disinfection, and the disinfection waste water is discharged from the tea water outlet pipe, and the new boiling water enters the temperature-adjusting container from the hot water container. Room temperature (normal temperature) tap water is used as cooling water for the cold water circulation system. Under the action of the cold water circulation system and the temperature control module, the boiling water temperature is quickly adjusted to the preset temperature, and then enters the brewing container from the temperature-adjusting container and flows out through the tea water outlet pipe for use;

[0032] Boiling water sub-mode: set the water temperature and water volume parameters through the touch screen, then add tap water or purified water into the hot water container, and start the electric heater to heat the water to boil; the boiling water is sprayed into the brewing container for high-temperature disinfection, and the disinfection waste water is discharged from the tea water outlet pipe. Under the control of the second flow control valve, the new boiling water enters the brewing container directly from the hot water container through the hot water outlet pipe, and flows out through the tea water outlet pipe for use.

[0033] Compared with the prior art, the present invention has the following beneficial effects:

[0034] The temperature-adjustable substitute tea brewing machine disclosed in the present invention is composed of four units: a control unit, a hot water unit, a temperature-adjusting unit and a brewing unit. The hot water unit is used to prepare hot water, and the prepared hot water can be distributed to the temperature-adjusting unit and the brewing unit through pipelines. The temperature-adjusting unit is equipped with a cooling circulation system, which can reduce the hot water flowing into the hot water unit to the required brewing temperature and then transmit it to the brewing unit. The advantages of the present invention are:

[0035] 1. Precise temperature control: Brewing temperature has an important influence on the brewing quality of substitute tea. Appropriate water temperature helps to increase the dissolution of nutrients and active substances in substitute tea, reduce the dissolution of harmful components such as heavy metals, and improve the sensory performance of substitute tea beverages. Some prior arts can only provide boiling water without adjusting the water temperature, which may destroy heat-sensitive nutrients and active substances, increase the dissolution of harmful components such as heavy metals, and destroy the taste and flavor of the beverage. Some prior arts heat the raw water to a specific temperature and then stop heating to control the water temperature. The disadvantage is that the safety of drinking the raw water directly without boiling is low. Some prior arts use natural cooling to reduce the water temperature, which is time-consuming and inefficient. The setting of the temperature control unit of the present invention can effectively and quickly adjust the water temperature as needed.

[0036] 2. Automatic control: The main control system of the present invention mainly includes a temperature control module and a flow control module. The temperature control module automatically controls the water temperature through a stirrer, an electric heater, a thermometer and a cold water circulation system according to predetermined instructions. The flow control system automatically controls the water volume through a flow control valve, a pump, a water level meter, a hot water container, a thermostat container and a brewing container according to predetermined instructions. The present invention has three use and control modes: a substitute tea mode, a self-prepared mode and a water mode. Among them, the substitute tea mode pre-sets appropriate brewing temperature, brewing time, liquid-to-material ratio, brewing times and other parameters according to the brewing requirements of different types of substitute teas such as chrysanthemum, rose, buckwheat tea, gynostemma pentaphyllum, and Yaowang tea, and can brew different types of substitute teas in a targeted manner without manual settings. The self-prepared mode allows the operator to set the water temperature, water volume and time by himself, which is suitable for brewing substitute teas other than common substitute teas. The water mode is used to directly provide boiling water and warm water of different temperatures, which is a beneficial supplement to the substitute tea mode and the self-prepared mode. These three usage and control modes improve the intelligence level of the present invention.

[0037] 3. Safe and convenient: The present invention includes three main working units, namely, a hot water container, a temperature regulating container and a brewing container. While the temperature regulating container and the brewing container are working, the hot water container can continuously prepare boiling water, which has high working efficiency and is particularly suitable for occasions where there is a large demand for tea substitutes (such as large conferences). When adding water to the hot water container, water can be automatically pumped in by a pump or manually injected through a covered funnel. The present invention has a simple structure, is easy to clean, easy to disassemble and repair, and is easy to use.

[0038] Furthermore, the main control system of the present invention also includes a disinfection system module and a timing module, wherein the disinfection module can perform high-temperature disinfection on containers, pipes and other devices according to predetermined instructions, and the timing module can control the time according to predetermined instructions.

[0039] Furthermore, the temperature control container of the present invention is also equipped with a thermometer and a stirrer. The thermometer can monitor the water temperature in real time, the cold water circulation system can quickly absorb heat and cool down, and the stirrer can stir the liquid evenly, thereby improving the accuracy of temperature measurement and control and accelerating the temperature control speed. The thermometer, the cold water circulation system and the stirrer work together to quickly reduce the boiling water temperature to a preset value, thereby achieving precise temperature control.

[0040] Furthermore, the disinfection module of the present invention can use boiling water to perform high-temperature disinfection on containers, pipes and other devices, which can reduce the harm of harmful microorganisms to the human body. Since nozzles are provided on the top of the temperature-adjusting container and the brewing container, the coverage area of ​​the boiling water sprayed by the nozzles is large, which helps to eliminate the blind spots of disinfection. During high-temperature disinfection, it can also rinse the substitute tea and wash away impurities such as dust that may adhere to the surface of the substitute tea.

[0041] Furthermore, the covered exhaust pipe on the upper wall of the hot water container, the temperature regulating container and the brewing container can maintain the normal air pressure in the container. The covered exhaust pipe and the cover on the upper part of the covered funnel can prevent dust and the like from falling into the container. In the temperature regulating container and the brewing container, a sealing ring is provided at the connection between the stirrer and the motor, which helps to maintain water tightness and prevent water leakage and electric leakage.

[0042] Furthermore, the upper wall, lower wall, front wall, rear wall, left wall, right wall of the hot water container and the brewing container and the upper wall of the thermostat container are covered with an insulation layer, which helps to maintain the water temperature and prevent scalding of operators. The water level measuring device of the hot water container can monitor the water volume in real time to prevent the hidden dangers caused by dry burning of the electric heater. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] Figure 1 It is a schematic diagram of the overall structure of the temperature-adjustable substitute tea brewing machine of the present invention;

[0044] Figure 2 It is a schematic diagram of the system composition of the temperature-adjustable tea substitute brewing machine of the present invention;

[0045] Figure 3 It is a schematic diagram of the use and control mode of the temperature-adjustable tea brewing machine of the present invention.

[0046] Among them: 1 is the main control room, 1-1 is the touch screen, 1-2 is the main control system; 2 is a hot water container, 2-1 is the first water inlet pipe, 2-2 is pump I, 2-3 is a covered funnel, 2-4 is the first water level measuring device, 2-5 is an electric heater, 2-6 is the first thermometer, 2-7 is the first covered exhaust pipe, 2-8 is the hot water outlet pipe, 2-9 is pump II, 2-10 is the second flow control valve, 2-11 is the first flow control valve; 3 is a temperature control container, 3-1 is the second water inlet pipe, 3-2 is the water inlet valve, 3-3 is the cold water outlet pipe, 3-4 is the outlet valve, 3-5 is the second thermometer, 3-6 is Stirrer I, 3-7 is the first sealing ring, 3-8 is the motor I, 3-9 is the warm water pipe, 3-10 is the warm water valve, 3-11 is the second exhaust pipe with cover, 3-12 is the temperature control nozzle, 3-13 is the insulation layer I, 3-14 is the second water level measuring device; 4 is the brewing container, 4-1 is the third exhaust pipe with cover, 4-2 is the brewing nozzle, 4-3 is the mesh tea bowl, 4-4 is the tea bowl bracket, 4-5 is the stirrer II, 4-6 is the second sealing ring, 4-7 is the motor II, 4-8 is the tea valve, 4-9 is the tea outlet pipe, 4-10 is the insulation layer II, and 4-11 is the third water level measuring device. DETAILED DESCRIPTION

[0047] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0048] It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0049] The present invention is further described in detail below in conjunction with the accompanying drawings:

[0050] like Figure 1As shown, the present invention includes a main control room 1, a hot water container 2, a temperature regulating container 3 and a brewing container 4. The main control room 1, the hot water container 2, the temperature regulating container 3 and the brewing container 4 are all rectangular parallelepiped structures. The main control room 1 is composed of a touch screen 1-1 and a main control system 1-2, which are used to realize human-computer dialogue and system control. The touch screen 1-1 can set the use and control mode, select the type of substitute tea, and set parameters such as brewing temperature, brewing time, liquid-to-material ratio, and brewing times. The hot water container 2 is used to prepare boiling water, which can be used to prepare substitute tea brewing water with suitable temperature, and can also be used for high-temperature disinfection of containers, pipes and other devices. Raw water (tap water or purified water) can be pumped into the hot water container 2 by a pump 1 2-2 through the first water inlet pipe 2-1, or can be manually added into the hot water container 2 through a covered funnel 2-3. The pump 1 2-2 is installed on the first water inlet pipe 2-1. The covered funnel 2-3 and the exhaust pipe 2-7 with a first cover are located at the top of the hot water container 2. The cover on the top of the covered funnel 2-3 can prevent dust and the like from falling into the hot water container 2. The first water level measuring device 2-4, the electric heater 2-5 and the first thermometer 2-6 are located at the bottom of the hot water container 2. The first water level measuring device 2-4 can monitor the water volume in real time. If the raw water is full, the pump 1 2-2 will be shut down through the flow control module to stop the water intake. If the water volume is lower than the safety limit, an alarm will be sounded through the touch screen 1-1. The electric heater 2-5 heats the raw water. The first thermometer 2-6 monitors the water temperature in real time. If the water temperature is lower than the boiling temperature, the electric heater 2-5 will be turned on through the temperature control module. If the water temperature reaches the boiling temperature, the electric heater 2-5 will be turned off through the temperature control module. During the heating process, the first covered exhaust pipe 2-7 can discharge water vapor in time, which helps to maintain the normal air pressure of the hot water container 2. The cover on the top of the first covered exhaust pipe 2-7 can prevent dust and the like from falling into the hot water container 2. The upper wall, lower wall, front wall, rear wall, left wall and right wall of the hot water container 2 are covered with an insulation layer, which helps to maintain the temperature of the boiling water in the hot water container 2, saves electric energy, and prevents scalding of the operator. Pump II 2-9, a second flow control valve 2-10 and a first flow control valve 2-11 are installed on the hot water outlet pipe 2-8. The boiling water in the hot water container 2 can be pumped into the temperature regulating container 3 and the brewing container 4 by the pump II 2-9 via the hot water outlet pipe 2-8. The second flow control valve 2-10 controls the amount of boiling water entering the brewing container 4, and the first flow control valve 2-11 controls the amount of boiling water entering the temperature regulating container 3. The temperature regulating container 3 is used to prepare warm water of different temperatures. The temperature regulating container 3 is equipped with a cold water circulation system for reducing the water temperature of the boiling water from the hot water container 2. The cold water circulation system is composed of a second water inlet pipe 3-1, a water inlet valve 3-2, a cold water outlet pipe 3-3 and a water outlet valve 3-4, and is a connecting jacket surrounding the temperature regulating container 3. Specifically, except for the upper wall of the temperature regulating container 3, the front wall, rear wall, left wall, right wall and lower wall are all wrapped by the cold water circulation system. The water inlet valve 3-2 is installed on the second water inlet pipe 3-1, and the water outlet valve 3-4 is installed on the cold water outlet pipe 3-3.Cold water enters the cold water circulation system from the second water inlet pipe 3-1 and is discharged by the cold water outlet pipe 3-3. Tap water (room temperature) is usually used as the cooling water of the cold water circulation system. After the boiling water prepared by the hot water container 2 enters the temperature control container 3, the water temperature is accurately adjusted under the coordinated work of the cold water circulation system, the second thermometer 3-5 and the agitator 1 3-6. The second thermometer 3-5, the agitator 1 3-6, the first sealing ring 3-7, the motor 1 3-8, the warm water pipe 3-9, the warm water valve 3-10 and the second water level measuring device 3-14 are located at the bottom of the temperature control container 3. The agitator 1 3-6 is connected to the motor 1 3-8 through the first sealing ring 3-7, and the first sealing ring 3-7 passes through the lower wall of the temperature control container 3. The first sealing ring 3-7 can ensure the water tightness of the connection between the agitator 1 3-6 and the motor 13-8 on the lower wall of the temperature control container 3 to prevent water leakage and leakage. After the water temperature is adjusted, it enters the brewing container 4 through the warm water pipe 3-9 under the control of the warm water valve 3-10. The warm water valve 3-10 is installed on the warm water pipe 3-9. The second covered exhaust pipe 3-11 and the temperature regulating nozzle 3-12 are located at the top of the temperature regulating container 3. The second covered exhaust pipe 3-11 helps to maintain the normal air pressure of the temperature regulating container 3, and the cover on the upper part of the second covered exhaust pipe 3-11 can prevent dust and the like from falling into the temperature regulating container 3. The boiling water in the hot water container 2 enters the temperature regulating container 3 through the temperature regulating nozzle 3-12. In the disinfection link, the boiling water sprayed by the temperature regulating nozzle 3-12 can perform high-temperature disinfection on the temperature regulating container 3. The upper wall of the temperature regulating container 3 is covered with an insulation layer I 3-13, which helps to maintain the water temperature and prevent scalding of the operator. The second water level measuring device 3-14 can monitor the amount of water in the temperature regulating container 3 in real time. The brewing container 4 is used to brew substitute tea. The third covered exhaust pipe 4-1 and the brewing nozzle 4-2 are located at the top of the brewing container 4. The third covered exhaust pipe 4-1 can maintain the normal air pressure of the brewing container 4, and the cover on the upper part of the third covered exhaust pipe 4-1 can prevent dust and the like from falling into the brewing container 4. In the disinfection stage, the boiling water sprayed by the brewing nozzle 4-2 can perform high-temperature disinfection on the brewing container 4. The substitute tea is weighed and poured into the mesh tea bowl 4-3. The mesh tea bowl 4-3 is placed in the brewing container 4 through the tea bowl bracket 4-4. The mesh tea bowl 4-3 is a bowl-shaped container with an opening on the top and closed at the bottom and around. The bottom and around are covered with mesh holes, which facilitates the substitute tea to fully contact with warm water. The tea bowl bracket 4-4, the stirrer II 4-5, the second sealing ring 4-6, the motor II 4-7, the tea valve 4-8, the tea outlet pipe 4-9 and the third water level measuring device 4-11 are located at the bottom of the brewing container 4. The tea valve 4-8 is installed on the tea outlet pipe 4-9. After the warm water with suitable temperature enters the brewing container 4 through the warm water pipe 3-9, the substitute tea is soaked.The stirrer II 4-5 is connected to the motor II 4-7 through the second sealing ring 4-6, and the second sealing ring 4-6 passes through the lower wall of the brewing container 4. The second sealing ring 4-6 can ensure the water tightness of the connection between the stirrer II 4-5 and the motor II 4-7 on the lower wall of the brewing container 4 to prevent leakage and leakage. The stirrer II 4-5 can stir the liquid in the brewing container 4 evenly, which helps to ensure the brewing quality of the substitute tea. The brewed substitute tea beverage can flow out from the tea outlet pipe 4-9 under the control of the tea valve 4-8 for drinking. The upper wall, lower wall, front wall, rear wall, left wall and right wall of the brewing container 4 are covered with the insulation layer II 4-10, which helps to maintain the temperature of the liquid in the brewing container 4 and prevent scalding of the operator. The third water level measuring device 4-11 can monitor the amount of liquid in the brewing container 4 in real time.

[0051] like Figure 2 As shown, the touch screen 1-1 and the main control system 1-2 constitute a human-computer dialogue control system. The main control system 1-2 includes a temperature control module, a disinfection module, a timing module and a flow control module. The temperature control module mainly involves a stirrer, an electric heater, a thermometer and a cold water circulation system, and the temperature control module controls the water temperature by controlling the opening and closing of the electric heater and the cold water circulation system. The flow control module mainly involves a flow control valve, a pump, a water level measuring device, a hot water container, a thermostat container and a brewing container, and the flow control module controls the water volume by controlling the opening and closing of pump I, pump II, the first flow control valve and the second flow control valve. The functions of the temperature control module, the disinfection module and the flow control module are equivalent to programmable switches, which can be ordered from the market. The timing module mainly controls the working time of the electric heater in the hot water container, the working time of the stirrer II in the brewing container and the working time of the disinfection module.

[0052] Preferably, the hot water container 2, the thermostat container 3, the brewing container 4, the corresponding first water inlet pipe 2-1, the hot water outlet pipe 2-8, the warm water pipe 3-9, the mesh tea bowl 4-3, the tea bowl support 4-4, the tea outlet pipe 4-9, and the stirring shaft and stirring paddle of the stirrer are made of food-grade stainless steel, which is safe and harmless to the human body. Other accessories are also made of materials acceptable in the field of substitute tea machinery technology.

[0053] like Figure 3As shown, the use and control modes of the present invention include three types: substitute tea mode, self-prepared mode and water mode. Among them, the substitute tea mode pre-sets appropriate brewing temperature, brewing time, liquid-to-material ratio, brewing times and other parameters according to the brewing requirements of different types of substitute teas such as chrysanthemum, rose, buckwheat tea, gynostemma pentaphyllum, Yaowang tea, etc., and different types of substitute teas can be brewed in a targeted manner without manually setting parameters. The self-prepared mode allows the operator to set the water temperature, water volume and time by himself, and is suitable for brewing substitute teas other than common substitute teas. The water mode is used to directly provide boiling water and warm water of different temperatures, which is a beneficial supplement to the substitute tea mode and the self-prepared mode. The self-prepared mode and the water mode broaden the scope of application of the temperature-adjustable substitute tea brewing machine.

[0054] When using the substitute tea mode of the present invention, first select the substitute tea type through the touch screen 1-1, and then put a certain amount of substitute tea into the mesh tea bowl 4-3. Add raw water (tap water or purified water) to the hot water container 2, and start the electric heater 2-5 to start heating to boil the water. Then turn on the disinfection system, and the boiling water is sprayed from the temperature regulating nozzle 3-12 into the temperature regulating container 3, which plays a high-temperature disinfection role on the equipment. In addition, the boiling water is also sprayed from the brewing nozzle 4-2 into the brewing container 4, which plays a high-temperature disinfection role on the equipment, and at the same time, it plays a rinsing role on the substitute tea, washing away impurities such as dust that may adhere to the surface of the substitute tea. After the disinfection is completed, the disinfection wastewater is discharged from the tea water outlet pipe 4-9, and new boiling water enters the temperature regulating container 3 from the hot water container 2. Room temperature (normal temperature) tap water is used as the cooling water of the cold water circulation system. Under the cooperation of the cold water circulation system, the temperature detector and the stirrer, the boiling water temperature is quickly adjusted to the appropriate temperature required for brewing the substitute tea. Then, a certain amount of warm water enters the brewing container 4 from the temperature regulating container 3 to brew the substitute tea. The timing system controls the brewing time. After the brewing is completed, the substitute tea beverage can flow out from the tea water outlet pipe 4-9 for drinking.

[0055] When using the self-simulation mode of the present invention, first set the parameters such as water temperature, water volume and time through the touch screen 1-1, and then put a certain amount of substitute tea into the mesh tea bowl 4-3. Add raw water to the hot water container 2, and start the electric heater 2-5 to start heating to boil the water. Then turn on the disinfection system, and the boiling water is sprayed from the thermostat nozzle 3-12 into the thermostat container 3, which has a high-temperature disinfection effect on the equipment. In addition, boiling water is also sprayed from the brewing nozzle 4-2 into the brewing container 4, which has a high-temperature disinfection effect on the equipment and rinses the substitute tea. After the disinfection is completed, the disinfection wastewater is discharged from the tea water outlet pipe 4-9, and new boiling water enters the thermostat container 3 from the hot water container 2. Room temperature (normal temperature) tap water is used as the cooling water of the cold water circulation system. Under the cooperation of the cold water circulation system, the thermometer and the stirrer, the boiling water temperature is quickly adjusted to the appropriate temperature required for brewing the substitute tea. Then, a certain amount of warm water enters the brewing container 4 from the thermostat container 3 to brew the substitute tea. After brewing is completed, the substitute tea beverage can flow out from the tea water outlet pipe 4-9 for drinking.

[0056] When using the water mode of the present invention, either a boiling water sub-mode or a warm water sub-mode can be set, and boiling water or warm water of a suitable temperature can flow out from the tea water outlet pipe 4-9 for use.

[0057] The operation method of the warm water sub-mode is as follows: first, set the water temperature, water volume and other parameters through the touch screen 1-1, then add raw water to the hot water container 2, and start the electric heater 2-5 to start heating to boil the water. Then turn on the disinfection system, and the boiling water is sprayed from the thermostat nozzle 3-12 into the thermostat container 3, which has a high-temperature disinfection effect on the equipment. In addition, boiling water is also sprayed from the brewing nozzle 4-2 into the brewing container 4, which has a high-temperature disinfection effect on the equipment. After the disinfection is completed, the disinfection wastewater is discharged from the tea water outlet pipe 4-9. New boiling water enters the thermostat container 3 from the hot water container 2. Room temperature (normal temperature) tap water is used as the cooling water of the cold water circulation system. With the cooperation of the cold water circulation system, the thermometer and the stirrer, the boiling water temperature is quickly adjusted to the preset temperature. Then, a certain amount of warm water enters the brewing container 4 from the thermostat container 3 and flows out through the tea water outlet pipe 4-9 for use.

[0058] The operation method of the boiling water sub-mode is as follows: first, set the water temperature, water volume and other parameters through the touch screen 1-1, then add raw water to the hot water container 2, and start the electric heater 2-5 to start heating to boil the water. Then turn on the disinfection system, and the boiling water is sprayed from the brewing nozzle 4-2 into the brewing container 4, which has a high-temperature disinfection effect on the equipment. After the disinfection is completed, the disinfection waste water is discharged from the tea water outlet pipe 4-9. The new boiling water from the hot water container 2 directly enters the brewing container 4 through the hot water outlet pipe 2-8 under the control of the second flow control valve 2-10, and finally flows out through the tea water outlet pipe 4-9 for use.

[0059] The above contents are only for explaining the technical idea of ​​the present invention and cannot be used to limit the protection scope of the present invention. Any changes made on the basis of the technical solution in accordance with the technical idea proposed by the present invention shall fall within the protection scope of the claims of the present invention.

Claims

1. A temperature-adjustable tea brewing machine, characterized in that: It includes a control unit, a hot water unit, a temperature adjustment unit and a brewing unit; The hot water unit is used to prepare hot water, comprising a hot water container (2), an electric heater (2-5) being arranged in the hot water container (2), a water inlet device and a hot water outlet pipe (2-8) being arranged on the hot water container (2), the water inlet of the hot water outlet pipe (2-8) being arranged in the hot water container (2), the water outlet being divided into two branches, respectively connected to a temperature regulating unit and a brewing unit, a first flow control valve (2-11) being arranged on the branch of the hot water outlet pipe (2-8) connected to the temperature regulating unit, and a second flow control valve (2-10) being arranged on the branch of the hot water outlet pipe (2-8) connected to the brewing unit; The temperature regulating unit is used to prepare water of different temperatures, and comprises a temperature regulating container (3) and a cold water circulation system arranged around the temperature regulating container (3), wherein the temperature regulating container (3) is connected to the brewing unit via a warm water pipe (3-9), and a warm water valve (3-10) is provided on the warm water pipe (3-9); The brewing unit is used for brewing tea, and comprises a brewing container (4), wherein the brewing container (4) is provided with a mesh tea bowl (4-3) for containing substitute tea to be brewed, and the bottom of the brewing container (4) is also provided with a tea outlet pipe (4-9), and the tea outlet pipe (4-9) is provided with a tea valve (4-8); The control unit comprises a main control room (1) and a touch screen (1-1) located thereon, wherein a main control system (1-2) is arranged in the main control room (1), and the main control system (1-2) comprises a flow control module and a temperature control module; wherein: A flow control module, used to control the operation of the first flow control valve (2-11) and the second flow control valve (2-10) to ensure water supply; The temperature control module is used to control the hot water container (2) to prepare hot water, and to adjust the outlet temperature of the water in the temperature regulating container (3) by controlling the operation of the cold water circulation system, so as to ensure that the temperature of the water entering the brewing container (4) meets the substitute tea brewing temperature; The cold water circulation system comprises a second water inlet pipe (3-1) and a water inlet valve (3-2) arranged on one side of the temperature regulating container (3), and a cold water outlet pipe (3-3) and a water outlet valve (3-4) arranged on the other side of the temperature regulating container (3); the second water inlet pipe (3-1) and the cold water outlet pipe (3-3) are interconnected to form a circulation jacket surrounding the temperature regulating container (3); The water inlet device provided on the hot water container (2) is a first water inlet pipe (2-1) or a funnel with a cover (2-3); A pump I (2-2) is provided on the first water inlet pipe (2-1), a pump II (2-9) is provided at the outlet end of the hot water outlet pipe (2-8), and a flow control module can control the operation of the pump I (2-2) and the pump II (2-9).

2. The temperature-adjustable tea substitute brewing machine according to claim 1, characterized in that: A temperature regulating nozzle (3-12) is provided on the top of the temperature regulating container (3), and the temperature regulating nozzle (3-12) is connected to a water outlet of a hot water outlet pipe (2-8) extending into the temperature regulating container (3); a stirrer I (3-6) is also provided in the chamber of the temperature regulating container (3), and the stirrer I (3-6) is connected to a motor I (3-8) arranged at the bottom of the chamber, and a first sealing ring (3-7) is provided at the connection portion; and a heat-insulating layer I (3-13) is coated on the top wall of the temperature regulating container (3).

3. The temperature-adjustable tea substitute brewing machine according to claim 1, characterized in that: A brewing nozzle (4-2) is provided at the top of the brewing container (4), and the brewing nozzle (4-2) is connected to a water outlet of a hot water outlet pipe (2-8) extending into the brewing container (4); a stirrer II (4-5) is also provided in the chamber of the brewing container (4), and the stirrer II (4-5) is connected to a motor II (4-7) arranged at the bottom of the chamber, and a second sealing ring (4-6) is provided at the connection portion; a tea bowl support (4-4) is also provided in the brewing container (4), and the mesh tea bowl (4-3) is placed above the tea bowl support (4-4); and a heat-insulating layer II (4-10) is coated on all four outer walls of the brewing container (4).

4. The temperature-adjustable tea substitute brewing machine according to any one of claims 1 to 3, characterized in that: A water level measuring device for real-time monitoring of the water level is arranged at the bottom of the hot water container (2), the temperature regulating container (3) and the brewing container (4); and the flow control module is capable of receiving a water level signal from the water level measuring device to control the operation of the flow control valve.

5. The temperature-adjustable tea substitute brewing machine according to any one of claims 1 to 3, characterized in that: A temperature detector is also provided in the hot water container (2) and the temperature adjustment container (3); and a temperature control module is capable of receiving a temperature signal from the temperature detector and adjusting the temperature.

6. The temperature-adjustable tea substitute brewing machine according to any one of claims 1 to 3, characterized in that: An exhaust pipe with a cover for exhausting air is provided on the top of the hot water container (2), the temperature regulating container (3) and the brewing container (4).

7. The temperature-adjustable tea substitute brewing machine according to any one of claims 1 to 3, characterized in that: The main control system (1-2) is also provided with a disinfection module and a timing module; A disinfection module, used for disinfecting the temperature regulating container (3) and the brewing container (4); The timing module is used to control the working time of the electric heater (2-5) in the hot water container (2), the working time of the stirrer II (4-5) in the brewing container (4), and the working time of the disinfection module.

8. The operating method of the temperature-adjustable tea substitute brewing machine according to any one of claims 1 to 7, characterized in that: include: Select the tea substitute mode, self-made mode or water mode according to your needs, including: Substitute tea mode: select the substitute tea type through the touch screen (1-1), weigh the substitute tea and put it into the mesh tea bowl (4-3), add tap water or purified water into the hot water container (2), and start the electric heater (2-5) to start heating to make the water boil; the boiling water is sprayed into the temperature regulating container (3) for high-temperature disinfection, and the boiling water is also sprayed into the brewing container (4) for high-temperature disinfection, and the substitute tea is rinsed, the disinfection waste water is discharged from the tea water outlet pipe (4-9), and new boiling water enters the temperature regulating container (3) from the hot water container (2), and room temperature / normal temperature tap water is used as cooling water for the cold water circulation system. Under the action of the cold water circulation system and the temperature control module, the boiling water temperature is quickly adjusted to the appropriate temperature required for brewing the substitute tea, and then enters the brewing container (4) from the temperature regulating container (3) to brew the substitute tea; after the brewing is completed, the substitute tea beverage can flow out from the tea water outlet pipe (4-9) for drinking; Self-prepared mode: water temperature, water volume and time parameters are set through the touch screen (1-1), substitute tea is weighed and placed in the mesh tea bowl (4-3), tap water or purified water is added to the hot water container (2), and the electric heater (2-5) is started to heat the water to make the water boil; the boiling water is sprayed into the temperature regulating container (3) and the brewing container (4) for high-temperature disinfection, and the substitute tea is rinsed, the disinfection waste water is discharged from the tea water outlet pipe (4-9), and new boiling water enters the temperature regulating container (3) from the hot water container (2), and room temperature / normal temperature tap water is used as cooling water for the cold water circulation system. Under the action of the cold water circulation system and the temperature control module, the boiling water temperature is adjusted to the appropriate temperature required for brewing the substitute tea, and the boiling water temperature is quickly adjusted to the appropriate temperature required for brewing the substitute tea, and then enters the brewing container (4) from the temperature regulating container (3) to brew the substitute tea; after the brewing is completed, the substitute tea beverage can flow out from the tea water outlet pipe (4-9) for drinking; Water mode: including warm water sub-mode and boiling water sub-mode; Warm water sub-mode: water temperature, water volume and time parameters are set through the touch screen (1-1), tap water or purified water is added to the hot water container (2), and the electric heater (2-5) is started to heat the water to boil; the boiling water is sprayed into the temperature regulating container (3) and the brewing container (4) for high-temperature disinfection, and the disinfection waste water is discharged from the tea water outlet pipe (4-9), and new boiling water enters the temperature regulating container (3) from the hot water container (2), and room temperature / normal temperature tap water is used as cooling water for the cold water circulation system. Under the action of the cold water circulation system and the temperature control module, the boiling water temperature is quickly adjusted to a preset temperature, and then enters the brewing container (4) from the temperature regulating container (3), and flows out through the tea water outlet pipe (4-9) for use; Boiling water sub-mode: water temperature and water volume parameters are set through the touch screen (1-1), then tap water or purified water is added to the hot water container 2, and the electric heater (2-5) is started to heat the water to boil; the boiling water is sprayed into the brewing container (4) for high-temperature disinfection, and the disinfection waste water is discharged from the tea water outlet pipe (4-9). New boiling water, under the control of the second flow control valve (2-10), directly enters the brewing container (4) from the hot water container (2) through the hot water outlet pipe (2-8), and flows out through the tea water outlet pipe (4-9) for use.

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