Tea bar machine and pipeline sterilization and disinfection control method thereof

Abstract

The invention relates to the technical field of tea bar machines, and particularly provides a tea bar machine and a pipeline sterilization and disinfection control method of the tea bar machine. The tea bar machine aims at solving the problem that an overflowing type sterilization device in an existing tea bar machine cannot sterilize a pipeline. Therefore, the tea bar machine comprises a teakettle, a water feeding pump and a water feeding pipeline, the two ends of the water feeding pipeline are connected with the teakettle and a pure water tank respectively, the water feeding pump is installed on the water feeding pipeline, and the tea bar machine further comprises a backflow pipeline, a water return pump installed on the backflow pipeline and a water inlet valve installed on the water feeding pipeline. The two ends of the backflow pipeline are connected with the water feeding pipeline, the first end of the backflow pipeline is located between the water feeding pump and the teakettle and is close to the teakettle, and the water inlet valve is used for controlling connection and disconnection of part of the pipeline from the second end of the water feeding pipeline to the joint of the water feeding pipeline and the second end of the backflow pipeline. According to the tea bar machine, high-temperature water in the teakettle can be pumped back into the circulating sterilization flow path to flow so as to perform high-temperature sterilization and disinfection on the water feeding pipeline.

Description

Technical Field

[0001] This invention relates to the field of tea bar machine technology, specifically providing a tea bar machine and a method for sterilizing and disinfecting the pipes of the tea bar machine. Background Technology

[0002] A tea bar machine integrates the functions of a traditional water dispenser and a teapot. Water is pumped from a water tank to a teapot on the machine through a built-in water circuit. After prolonged use, bacteria may grow in the built-in water circuit, which will inevitably affect the user's health. Therefore, it is necessary to install a sterilization device in the built-in water circuit of the tea bar machine.

[0003] In existing technologies, a flow-through sterilization device is usually connected to the water circuit of the tea bar machine to effectively sterilize the built-in water circuit. However, this flow-through sterilization device actually sterilizes the water flowing in the water circuit to prevent the water from being contaminated by the water circuit; but it cannot sterilize and disinfect the water circuit itself. Therefore, when the flow-through sterilization device malfunctions, the water may still be contaminated.

[0004] Accordingly, a new technical solution is needed in this field to solve the above-mentioned technical problems. Summary of the Invention

[0005] The present invention aims to solve the above-mentioned technical problem, namely, to solve the problem that the existing flow-through sterilization device in tea bar machines cannot sterilize the pipes themselves.

[0006] In a first aspect, the present invention provides a tea bar machine, the tea bar machine including a kettle, a water pump and a water supply pipe, a first end of the water supply pipe being connected to the kettle, a second end of the water supply pipe being connected to a pure water tank, the water pump being installed on the water supply pipe, the water pump being used to transport water from the pure water tank toward the kettle, the tea bar machine also including a return pipe, a return pump installed on the return pipe and a water inlet valve installed on the water supply pipe, both ends of the return pipe being connected to the water supply pipe, the first end of the return pipe being located between the water pump and the kettle and close to the kettle, the second end of the return pipe being close to the second end of the water supply pipe, the return pipe and the water supply pipe forming a circulating sterilization flow path, the return pump being used to transport water from the first end of the return pipe toward the second end, and the water inlet valve being close to the second end of the water supply pipe and configured to control the on / off of a portion of the pipe from the second end of the water supply pipe to the connection point between the water supply pipe and the second end of the return pipe.

[0007] In the preferred technical solution of the above-mentioned tea bar machine, the water inlet valve is a one-way valve or a two-way solenoid valve, and the second end of the return pipe is located between the water pump and the water inlet valve, and is set close to the water inlet valve; or, the water inlet valve is a three-way valve, the first interface end of the three-way valve is connected to the pure water tank, the second interface end of the three-way valve is connected to the water pump through the water supply pipe, and the third interface end of the three-way valve is connected to the second end of the return pipe.

[0008] With the above technical solution adopted, the tea bar machine of the present invention is equipped with a return pipe, a return water pump installed on the return pipe, and an inlet valve installed on the water supply pipe, based on the original water supply pipe and water pump forming the water supply flow path. This makes the return pipe and the water supply pipe form a circulating sterilization flow path. By controlling the operation of the return water pump and the water supply pump, the high-temperature water in the kettle can be drawn back into the circulating sterilization flow path for circulation, thereby sterilizing the water supply pipe and keeping the inside of the water supply pipe clean, which helps to improve the user's water safety. In addition, the inlet valve can control the opening and closing of a part of the pipe from the second end of the water supply pipe to the connection between the second end of the water supply pipe and the second end of the return pipe, so that the high-temperature water can flow smoothly in the circulating sterilization flow path and prevent the high-temperature water from flowing back into the pure water tank.

[0009] Furthermore, the inlet valve is set as a three-way valve, with the first port of the three-way valve connected to the pure water tank, the second port of the three-way valve connected to the water pump through the water supply pipe, and the third port of the three-way valve connected to the second end of the return pipe. This configuration allows for sterilization and disinfection of the entire water supply pipe during return sterilization, eliminating any unsterilized dead corners in the water supply pipe, improving the effectiveness of return sterilization, and making it more convenient to use.

[0010] In a second aspect, the present invention provides a method for controlling the sterilization and disinfection of pipelines in a tea bar machine, wherein the tea bar machine is as described above, and the tea bar machine further includes a pre-pump TDS detection device and a post-pump TDS detection device disposed on the water supply pipeline. The pre-pump TDS detection device is located between the water supply pump and the inlet valve and between the water supply pump and the second end of the return pipeline, and the post-pump TDS detection device is located between the water supply pump and the first end of the return pipeline and is disposed near the kettle; the pipeline sterilization and disinfection control method includes: acquiring the TDS detected by the pre-pump TDS detection device. The S value is denoted as the first TDS value; the TDS value detected by the TDS detection device after the pump is obtained and denoted as the second TDS value; based on the first TDS value and the second TDS value, the pipeline sterilization mode is selectively executed; the pipeline sterilization mode is as follows: the inlet valve cuts off part of the pipeline from the second end of the water supply pipeline to the connection between the water supply pipeline and the second end of the return pipeline, controls the operation of the return pump and the water supply pump, and pumps the high-temperature water in the kettle back into the return pipeline and circulates in the circulating sterilization flow path to sterilize the return pipeline and the water supply pipeline at high temperature.

[0011] In the preferred technical solution of the above-mentioned pipeline sterilization and disinfection control method for the tea bar machine, the step of "selectively executing the pipeline sterilization mode according to the first TDS value and the second TDS value" specifically includes: comparing the first TDS value with a first preset TDS value; comparing the second TDS value with the first preset TDS value; and selectively executing the pipeline sterilization mode according to the comparison result of the first TDS value with the first preset TDS value and the comparison result of the second TDS value with the first preset TDS value.

[0012] In the preferred technical solution of the above-mentioned pipeline sterilization and disinfection control method for the tea bar machine, the step of "selectively executing the pipeline sterilization mode according to the comparison result of the first TDS value and the first preset TDS value and the comparison result of the second TDS value and the first preset TDS value" specifically includes: if the first TDS value and / or the second TDS value is not less than the first preset TDS value, then the pipeline sterilization mode is executed.

[0013] In the preferred technical solution of the above-mentioned pipeline sterilization and disinfection control method for the tea bar machine, the step of "selectively executing the pipeline sterilization mode according to the comparison result of the first TDS value and the first preset TDS value and the comparison result of the second TDS value and the first preset TDS value" specifically includes: if both the first TDS value and the second TDS value are less than the first preset TDS value, then the pipeline sterilization mode is not executed.

[0014] In the preferred technical solution of the above-mentioned pipeline sterilization and disinfection control method for the tea bar machine, the step of "selectively executing the pipeline sterilization mode based on the comparison result of the first TDS value and the first preset TDS value and the comparison result of the second TDS value and the first preset TDS value" specifically includes: if both the first TDS value and the second TDS value are less than the first preset TDS value, then calculate the difference between the first TDS value and the second TDS value; compare the absolute value of the difference with the preset TDS difference; if the absolute value of the difference is not less than the preset TDS difference, then execute the pipeline sterilization mode; if the absolute value of the difference is less than the preset TDS difference, then do not execute the pipeline sterilization mode.

[0015] In the preferred embodiment of the above-mentioned pipeline sterilization and disinfection control method for the tea bar machine, before executing the pipeline sterilization mode, the pipeline sterilization and disinfection control method further includes: obtaining the water level and actual water temperature in the kettle; determining the pipeline contamination level based on the first TDS value and the second TDS value; and selectively executing the boiling water mode before executing the pipeline sterilization mode based on the pipeline contamination level, the water level, and the actual water temperature.

[0016] In the preferred embodiment of the above-mentioned pipeline sterilization and disinfection control method for a tea bar machine, during the execution of the pipeline sterilization mode, the pipeline sterilization and disinfection control method further includes: acquiring the TDS value detected by the pre-pump TDS detection device in real time, and recording it as the first sterilization TDS value; acquiring the TDS value detected by the post-pump TDS detection device in real time, and recording it as the second sterilization TDS value; comparing the first sterilization TDS value with a second preset TDS value; comparing the second sterilization TDS value with the second preset TDS value; and selectively stopping the execution of the pipeline sterilization mode based on the comparison results of the first sterilization TDS value and the second preset TDS value.

[0017] In the preferred embodiment of the above-mentioned pipeline sterilization and disinfection control method for a tea bar machine, during the execution of the pipeline sterilization mode, the pipeline sterilization and disinfection control method further includes: after the pipeline sterilization mode is started until a first preset time, obtaining the return temperature of the return sterilization water flowing in the circulating sterilization flow path; determining the pipeline contamination level based on the first TDS value and the second TDS value; determining the sterilization return time based on the pipeline contamination level and the return temperature; obtaining the actual execution time of the pipeline sterilization mode in real time; and selectively stopping the execution of the pipeline sterilization mode based on the actual execution time and the sterilization return time.

[0018] With the above technical solution adopted, the tea bar machine of the present invention is equipped with a pre-pump TDS detection device and a post-pump TDS detection device on both sides of the water pump, respectively, to detect the TDS value of the water flowing through the water supply pipe at two different locations, thereby determining whether the water supply pipe needs to be sterilized and disinfected. The pipe sterilization and disinfection control method of the present invention includes: obtaining the TDS value detected by the pre-pump TDS detection device and recording it as the first TDS value; obtaining the TDS value detected by the post-pump TDS detection device and recording it as the second TDS value; selectively executing the pipe sterilization mode according to the first TDS value and the second TDS value. This setting, by setting two TDS detection devices and selectively executing the pipe sterilization mode according to the two TDS values, can sterilize and disinfect the water supply pipe at an appropriate time, keep the water supply pipe clean, ensure the safety of the user's water use, and improve the user experience.

[0019] Furthermore, the first TDS value and the second TDS value are compared with the first preset TDS value respectively. Based on the two comparison results, the pipeline sterilization mode is selectively executed. This setting method, which compares the first TDS value and the second TDS value with the first preset TDS value respectively, can improve the accuracy of the judgment, so as to carry out high-temperature sterilization of the water supply pipeline in a timely manner and effectively improve the safety of the water supply pipeline.

[0020] Furthermore, the step of "selectively executing the pipeline sterilization mode based on the comparison result of the first TDS value and the first preset TDS value and the comparison result of the second TDS value and the first preset TDS value" specifically includes: if the first TDS value and / or the second TDS value is not less than the first preset TDS value, then the pipeline sterilization mode is executed; with this setting, when any TDS value is not less than the first preset TDS value, the pipeline sterilization mode is executed, thereby sterilizing the water supply pipeline to ensure the cleanliness of the water supply pipeline and improve the user experience.

[0021] Furthermore, the step of "selectively executing the pipeline sterilization mode based on the comparison result of the first TDS value and the first preset TDS value and the comparison result of the second TDS value and the first preset TDS value" specifically includes: if both the first TDS value and the second TDS value are less than the first preset TDS value, then the pipeline sterilization mode is not executed; with this setting, when both TDS values ​​are less than the first preset TDS value, it means that the upper and lower halves of the water supply pipeline can be used normally, and therefore the pipeline sterilization mode is not executed.

[0022] Furthermore, the step of "selectively executing the pipeline sterilization mode based on the comparison result of the first TDS value and the first preset TDS value and the comparison result of the second TDS value and the first preset TDS value" specifically includes: if both the first TDS value and the second TDS value are less than the first preset TDS value, then calculate the difference between the first TDS value and the second TDS value; compare the absolute value of the difference with the preset TDS difference; if the absolute value of the difference is not less than the preset TDS difference, then execute the pipeline sterilization mode; if the absolute value of the difference is less than the preset TDS difference, then do not execute the pipeline sterilization mode. This setting, when both TDS values ​​are less than the first preset TDS value, calculates the difference between the two TDS values ​​and compares the absolute value of the difference with the preset TDS difference. If the absolute value of the difference is not less than the preset TDS difference, it indicates that the degree of contamination between different locations in the water supply pipeline is different and the difference is significant. Therefore, the pipeline sterilization mode is executed to sterilize and disinfect the water supply pipeline, making it clean and further ensuring the safety of users' water use.

[0023] Furthermore, before executing the pipeline sterilization mode, the pipeline sterilization and disinfection control method further includes: obtaining the water level and actual water temperature in the kettle; determining the pipeline contamination level based on the first TDS value and the second TDS value; and selectively executing the boiling mode before executing the pipeline sterilization mode based on the pipeline contamination level, the water level, and the actual water temperature. This configuration ensures that before executing the pipeline sterilization mode, the boiling mode is determined based on the pipeline contamination level, water level, and actual water temperature to guarantee that the water in the kettle meets the sterilization and disinfection requirements, thereby ensuring that the water supply pipes can be successfully sterilized when the pipeline sterilization mode is executed.

[0024] Furthermore, during the execution of the pipeline sterilization mode, the pipeline sterilization and disinfection control method further includes: acquiring the TDS value detected by the pre-pump TDS detection device in real time, and recording it as the first sterilization TDS value; acquiring the TDS value detected by the post-pump TDS detection device in real time, and recording it as the second sterilization TDS value; comparing the first sterilization TDS value with a second preset TDS value; comparing the second sterilization TDS value with the second preset TDS value; and selectively stopping the execution of the pipeline sterilization mode based on the comparison results of the first sterilization TDS value and the second preset TDS value. This configuration compares the two sterilization TDS values ​​with the second preset TDS value respectively, thereby selectively stopping the execution of the pipeline sterilization mode based on the comparison results, so as to stop the execution of the pipeline sterilization mode in a timely manner after sterilization and disinfection are completed.

[0025] Furthermore, during the execution of the pipeline sterilization mode, the pipeline sterilization and disinfection control method further includes: after the pipeline sterilization mode is started until a first preset time, obtaining the return temperature of the return sterilization water flowing in the circulating sterilization flow path; determining the pipeline contamination level based on the first TDS value and the second TDS value; determining the sterilization return time based on the pipeline contamination level and the return temperature; obtaining the actual execution time of the pipeline sterilization mode in real time; and selectively stopping the execution of the pipeline sterilization mode based on the actual execution time and the sterilization return time. This setting method first determines the sterilization return time based on the pipeline contamination level and the return temperature, and then determines whether to stop the execution of the pipeline sterilization mode based on the actual execution time and the sterilization return time, which facilitates timely control and stopping of the pipeline sterilization mode, and is simple to determine and easy to execute. Attached Figure Description

[0026] The preferred embodiments of the present invention are described below with reference to the accompanying drawings, in which:

[0027] Figure 1 This is a schematic diagram of the structure of a tea bar machine according to a first embodiment of the present invention;

[0028] Figure 2 This is a schematic diagram of the structure of a second embodiment of the tea bar machine of the present invention;

[0029] Figure 3 This is a flowchart of the main steps of the pipeline sterilization and disinfection control method for the tea bar machine of the present invention;

[0030] Figure 4 This is a flowchart of a first embodiment of the pipeline sterilization and disinfection control method for the tea bar machine of the present invention;

[0031] Figure 5 This is a flowchart of Embodiment 2 of the pipeline sterilization and disinfection control method for the tea bar machine of the present invention;

[0032] Figure 6 This is a flowchart of Embodiment 3 of the pipeline sterilization and disinfection control method for the tea bar machine of the present invention;

[0033] Figure 7 This is a flowchart of Embodiment 4 of the pipeline sterilization and disinfection control method for the tea bar machine of the present invention;

[0034] Figure 8 This is a flowchart of Embodiment 5 of the method for controlling the sterilization and disinfection of the pipelines of the tea bar machine of the present invention.

[0035] List of reference numerals in the attached diagram:

[0036] 1. Kettle; 2. Pure water tank; 3. Water supply pump; 4. Water return pump; 5. Inlet valve; 6. Water supply pipe; 7. Return pipe; 8. TDS detection device before pump; 9. TDS detection device after pump. Detailed Implementation

[0037] Preferred embodiments of the present invention will now be described with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.

[0038] It should be noted that in the description of this invention, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0039] Furthermore, it should be noted that, in the description of this invention, unless otherwise explicitly specified and limited, the terms "set" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through other components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0040] Specifically, based on the problem pointed out in the background art that the flow-through sterilization device in the existing tea bar machine cannot sterilize the pipe itself.

[0041] The present invention provides a tea bar machine in the first aspect. The tea bar machine is equipped with a return pipe and a return water pump installed on the return pipe on the basis of the water supply path. The return pipe and the water supply pipe form a circulating sterilization path. By controlling the operation of the return water pump and the water supply pump, the high-temperature water in the kettle can be drawn back into the circulating sterilization path for circulation, thereby sterilizing the water supply pipe and keeping the inside of the water supply pipe clean, which helps to improve the user's water safety.

[0042] In a second aspect, this invention provides a method for controlling the sterilization and disinfection of water supply pipes in a tea bar machine. This method involves installing two TDS (Total Dissolved Solids) detection devices on both sides of the water pump and selectively executing a pipe sterilization mode based on the two TDS values. This allows for sterilization and disinfection of the water supply pipes at appropriate times, keeping the pipes clean, ensuring water safety for users, and improving the user experience.

[0043] Specifically, in the first aspect, please refer to Figure 1 The present invention provides a tea bar machine, which includes a kettle 1, a water pump 3 and a water supply pipe 6. The first end of the water supply pipe 6 is connected to the kettle 1, and the second end of the water supply pipe 6 is used to connect to a pure water tank 2. The water pump 3 is installed on the water supply pipe 6 and is used to transport water in the pure water tank 2 toward the kettle 1, thereby forming a water supply path from the pure water tank 2 to the kettle 1.

[0044] It should be noted that the pure water tank 2 of the present invention is a structure independent of the tea bar machine. It is a separate container for holding pure water, such as bottled water or a self-made water tank.

[0045] Please continue reading. Figure 1 The tea bar machine also includes a return pipe 7, a return water pump 4 installed on the return pipe 7, and a water inlet valve 5 installed on the water supply pipe 6. Both ends of the return pipe 7 are connected to the water supply pipe 6, forming a circulating sterilization flow path. Specifically, the first end of the return pipe 7 is located between the water supply pump 3 and the kettle 1, and the first end of the return pipe 7 is positioned close to the kettle 1. The second end of the return pipe 7 is positioned close to the second end of the water supply pipe 6, so that as many areas of the water supply pipe 6 as possible can form a circulating sterilization flow path. This allows for the sterilization of more areas of the water supply pipe 6 when high-temperature water flows through the circulating sterilization flow path, improving the safety of the water supply pipe 6. The return water pump 4 is used to transport water from the first end to the second end of the return pipe 7, thereby drawing high-temperature water from the kettle 1 into the circulating sterilization flow path for circulation. The inlet valve 5 is located near the second end of the water supply pipe 6, and the inlet valve 5 is configured to control the opening and closing of a portion of the pipe from the second end of the water supply pipe 6 to the connection point between the water supply pipe 6 and the second end of the return pipe, so as to disconnect the pure water tank 2 from the second end of the return pipe 7 during circulating sterilization, to prevent high-temperature water from entering the pure water tank 2, and to allow high-temperature water to flow smoothly in the circulating sterilization flow path, thereby improving the sterilization effect.

[0046] The tea bar machine of the present invention is equipped with a return pipe 7 and a return water pump 4 installed on the return pipe 7 on the basis of the water supply path. The return pipe 7 and the water supply pipe 6 form a circulating sterilization path. By controlling the operation of the return water pump 4 and the water supply pump 3, the high temperature water in the kettle 1 can be pumped back into the circulating sterilization path for circulation, thereby sterilizing the water supply pipe 6 and keeping the inside of the water supply pipe 6 clean, which helps to improve the user's water safety.

[0047] In one implementation, please refer to Figure 1 The inlet valve 5 is a one-way valve or a two-way solenoid valve. The second end of the return pipe 7 is located between the upper water pump 3 and the inlet valve 5, and is set close to the inlet valve 5.

[0048] When the inlet valve 5 is a one-way valve, it allows water to flow from the second end of the water supply pipe 6 toward the first end, and prevents water from flowing to the second end of the water supply pipe 6.

[0049] In another implementation, please refer to Figure 2The inlet valve 5 is a three-way valve. The first port of the three-way valve is connected to the pure water tank 2, the second port of the three-way valve is connected to the water pump 3 through the water supply pipe 6, and the third port of the three-way valve is connected to the second end of the return pipe 7.

[0050] and Figure 1 Compared with the previous technical solution, setting the inlet valve 5 as a three-way valve allows the return pipe 7 and the water supply pipe 6 to be connected through the three-way valve. This enables as many areas of the water supply pipe 6 as possible to form a circulating sterilization flow path. Thus, when the high-temperature water flowing through the circulating sterilization flow path is sterilized and disinfected, the entire water supply pipe 6 can be sterilized and disinfected, effectively improving the safety of the water supply pipe 6.

[0051] In a preferred embodiment, please also refer to Figure 1 and Figure 2 The tea bar machine also includes a pre-pump TDS detection device 8 and a post-pump TDS detection device 9 installed on the water supply pipe 6.

[0052] The TDS detection device 8 is located between the water pump 3 and the inlet valve 5, and is located between the water pump 3 and the second end of the return pipe 7. The TDS detection device 9 is located between the water pump 3 and the first end of the return pipe 7, and is located close to the kettle 1.

[0053] A TDS detection device 8 is installed before the pump and a TDS detection device 9 is installed after the pump on both sides of the water pump 3. The TDS detection device 8 before the pump is located in the first half of the water supply pipe 6 and is placed as close as possible to the inlet valve 5. The TDS detection device 9 after the pump is located in the second half of the water supply pipe 6 and is placed as close as possible to the kettle 1. This allows for the detection of whether there is pollution in the water supply pipe 6 from two different locations. The TDS value of the water flowing through the TDS detection device is used to make a judgment.

[0054] The tea bar machine of the present invention also includes a controller. The kettle 1, the water pump 3, the return water pump 4, the TDS detection device 8 before the pump and the TDS detection device 9 after the pump are all connected to the controller for communication. The controller is configured to execute the pipeline sterilization and disinfection control method of the tea bar machine of the present invention.

[0055] Specifically, please refer to Figure 3 The method for sterilizing and disinfecting the pipelines of the tea bar machine of the present invention includes the following steps:

[0056] S1: Obtain the TDS value detected by the TDS detection device before the pump, and record it as the first TDS value.

[0057] In practical applications, the TDS value detected by the TDS detection device before the pump can be obtained in real time, or the TDS value detected by the TDS detection device before the pump can be obtained at certain intervals, for example, once every 10 minutes.

[0058] S2: Obtain the TDS value detected by the TDS detection device after the pump, and record it as the second TDS value.

[0059] In practical applications, the TDS value detected by the TDS detection device after the pump can be obtained in real time, or the TDS value detected by the TDS detection device after the pump can be obtained at certain intervals, for example, once every 10 minutes.

[0060] S3: Selectively execute pipeline sterilization mode based on the first TDS value and the second TDS value.

[0061] The pipeline sterilization mode involves the inlet valve cutting off a portion of the pipeline from the second end of the water supply pipe to the connection point between the water supply pipe and the second end of the return pipe. This controls the operation of the return water pump and the water supply pump, drawing the high-temperature water from the kettle back into the return pipe and circulating it within the sterilization flow path to sterilize the return pipe and the water supply pipe at high temperature.

[0062] Specifically, when the pipeline sterilization mode is executed, the inlet valve cuts off a portion of the pipeline from the second end of the water supply pipe to the connection point between the water supply pipe and the second end of the return pipe. The return pump and the water supply pump operate according to the following rules: During the first time period when the pipeline sterilization mode is activated, the flow rate of the return pump is made greater than that of the water supply pump to ensure the circulation sterilization flow path is open and to pump the hot water in the kettle back into the return pipe, filling it with sufficient return water. Then, the flow rate of the return pump is made equal to that of the water supply pump to ensure that the hot water can circulate stably within the circulation sterilization flow path, thereby sterilizing and disinfecting the water supply pipe. Finally, during the second time period when the pipeline sterilization mode is stopped, the flow rate of the return pump is made less than that of the water supply pump, thereby transporting the water in the circulation sterilization flow path to the kettle through the water supply pipe, maximizing the discharge of water from the return pipe and preventing its accumulation.

[0063] It should be noted that the water returning to the kettle after the pipeline sterilization mode has been completed should be boiled again before use to further sterilize the returned water at high temperature, thus ensuring water safety.

[0064] The pipeline sterilization and disinfection control method of the present invention sets up two TDS detection devices and selectively executes pipeline sterilization mode according to the two TDS values, so as to sterilize and disinfect the water supply pipeline at the appropriate time, keep the water supply pipeline clean, ensure the safety of users' water use, and improve the user experience.

[0065] The following detailed description of the pipeline sterilization and disinfection control method of the tea bar machine of the present invention will be provided through several specific embodiments.

[0066] Example 1

[0067] Please see Figure 4 The pipeline sterilization and disinfection control method of the tea bar machine in this embodiment includes the following steps:

[0068] S1: Obtain the TDS value detected by the TDS detection device before the pump, and record it as the first TDS value.

[0069] S2: Obtain the TDS value detected by the TDS detection device after the pump, and record it as the second TDS value.

[0070] After obtaining the first TDS value and the second TDS value, the pipeline sterilization mode is selectively executed based on the first TDS value and the second TDS value.

[0071] Specifically, the step "selectively execute pipeline sterilization mode based on the first TDS value and the second TDS value" includes steps S31, S32, S4 and S5.

[0072] S31: Determine whether the first TDS value is less than the first preset TDS value.

[0073] The first TDS value is compared with the first preset TDS value to determine whether the first TDS value is less than the first preset TDS value, so that the pipeline sterilization mode can be selectively executed based on the determination result of whether the first TDS value is less than the first preset TDS value.

[0074] Specifically, before leaving the factory, the controller of the tea bar machine stores a first preset TDS value.

[0075] Specifically, "selectively executing pipeline sterilization mode based on the judgment result of whether the first TDS value is less than the first preset TDS value" includes: when the judgment result is "yes", then execute step S32 to judge whether the second TDS value is less than the first preset TDS value; when the judgment result is "no", then execute step S4 to execute pipeline sterilization mode.

[0076] S32: Determine whether the second TDS value is less than the first preset TDS value.

[0077] If the first TDS value is less than the first preset TDS value, the second TDS value is compared with the first preset TDS value to determine whether the second TDS value is less than the first preset TDS value. Based on the determination result of whether the second TDS value is less than the first preset TDS value, the pipeline sterilization mode is selectively executed.

[0078] Specifically, "selectively executing pipeline sterilization mode based on the judgment result of whether the second TDS value is less than the first preset TDS value" includes: when the judgment result is "yes", then step S5 is executed and the pipeline sterilization mode is not executed; when the judgment result is "no", then step S4 is executed and the pipeline sterilization mode is executed.

[0079] S4: Execute pipeline sterilization mode.

[0080] If the first TDS value is not less than the first preset TDS value, or if the second TDS value is not less than the first preset TDS value, it indicates that there is contamination in the water supply pipe, and the water supply pipe needs to be sterilized and disinfected, thereby executing the pipe sterilization mode.

[0081] S5: Do not execute pipeline sterilization mode.

[0082] If both the first TDS value and the second TDS value are less than the first preset TDS value, it indicates that the water supply pipe will not have a significant impact on the quality of the flowing water, and there is no need to sterilize or disinfect the water supply pipe, thus the pipe sterilization mode is not executed.

[0083] The pipeline sterilization mode involves the inlet valve cutting off a portion of the pipeline from the second end of the water supply pipe to the connection point between the water supply pipe and the second end of the return pipe. This controls the operation of the return water pump and the water supply pump, drawing the high-temperature water from the kettle back into the return pipe and circulating it within the sterilization flow path to sterilize the return pipe and the water supply pipe at high temperature.

[0084] Specifically, when the pipeline sterilization mode is executed, the inlet valve cuts off a portion of the pipeline from the second end of the water supply pipe to the connection point between the water supply pipe and the second end of the return pipe. The return pump and the water supply pump operate according to the following rules: During the first time period when the pipeline sterilization mode is activated, the flow rate of the return pump is made greater than that of the water supply pump to ensure the circulation sterilization flow path is open and to pump the hot water in the kettle back into the return pipe, filling it with sufficient return water. Then, the flow rate of the return pump is made equal to that of the water supply pump to ensure that the hot water can circulate stably within the circulation sterilization flow path, thereby sterilizing and disinfecting the water supply pipe. Finally, during the second time period when the pipeline sterilization mode is stopped, the flow rate of the return pump is made less than that of the water supply pump, thereby transporting the water in the circulation sterilization flow path to the kettle through the water supply pipe, maximizing the discharge of water from the return pipe and preventing its accumulation.

[0085] It should be noted that although this embodiment describes the steps in the order of executing step S31 first and then step S32, this should not limit the scope of protection of the present invention. In practical applications, step S32 can be executed first and then step S31; or steps S32 and S31 can be executed simultaneously, and step S5 can be executed when both the first TDS value and the second TDS value are less than the first preset TDS value, and step S4 can be executed when the first TDS value and / or the second TDS value are not less than the first preset TDS value.

[0086] Example 2

[0087] Please see Figure 5 The pipeline sterilization and disinfection control method of the tea bar machine in this embodiment includes the following steps:

[0088] S1: Obtain the TDS value detected by the TDS detection device before the pump, and record it as the first TDS value.

[0089] S2: Obtain the TDS value detected by the TDS detection device after the pump, and record it as the second TDS value.

[0090] After obtaining the first TDS value and the second TDS value, the pipeline sterilization mode is selectively executed based on the first TDS value and the second TDS value.

[0091] Specifically, the step "selectively execute pipeline sterilization mode based on the first TDS value and the second TDS value" includes steps S31, S32, S33, S34, S4 and S5.

[0092] S31: Determine whether the first TDS value is less than the first preset TDS value.

[0093] The first TDS value is compared with the first preset TDS value to determine whether the first TDS value is less than the first preset TDS value, so that the pipeline sterilization mode can be selectively executed based on the determination result of whether the first TDS value is less than the first preset TDS value.

[0094] Specifically, "selectively executing pipeline sterilization mode based on the judgment result of whether the first TDS value is less than the first preset TDS value" includes: when the judgment result is "yes", then execute step S32 to judge whether the second TDS value is less than the first preset TDS value; when the judgment result is "no", then execute step S4 to execute pipeline sterilization mode.

[0095] S32: Determine whether the second TDS value is less than the first preset TDS value.

[0096] If the first TDS value is less than the first preset TDS value, the second TDS value is compared with the first preset TDS value to determine whether the second TDS value is less than the first preset TDS value. Based on the determination result of whether the second TDS value is less than the first preset TDS value, the pipeline sterilization mode is selectively executed.

[0097] Specifically, “selectively executing pipeline sterilization mode based on the judgment result of whether the second TDS value is less than the first preset TDS value” includes: when the judgment result is “yes”, executing steps S33 and S34 in sequence; when the judgment result is “no”, executing step S4 to execute pipeline sterilization mode.

[0098] S33: Calculate the difference between the first TDS value and the second TDS value.

[0099] The difference between the first TDS value and the second TDS value is obtained.

[0100] S34: Determine whether the absolute value of the difference is less than the preset TDS value.

[0101] The absolute value of the difference is compared with the preset TDS difference value so that the pipeline sterilization mode can be selectively executed based on the comparison result.

[0102] Specifically, "selectively executing the pipeline sterilization mode based on the comparison results" includes: if the absolute value of the difference is not less than the preset TDS difference, then step S4 is executed to execute the pipeline sterilization mode. If the absolute value of the difference is less than the preset TDS difference, then step S5 is executed to not execute the pipeline sterilization mode.

[0103] S4: Execute pipeline sterilization mode.

[0104] If the first TDS value is not less than the first preset TDS value, or if the second TDS value is not less than the first preset TDS value, or if both the first TDS value and the second TDS value are less than the first preset TDS value, and the absolute value of the difference between the first TDS value and the second TDS value is not less than the preset TDS difference, it indicates that there is contamination in the water supply pipe, and the water supply pipe needs to be sterilized and disinfected, thereby executing the pipe sterilization mode.

[0105] S5: Do not execute pipeline sterilization mode.

[0106] If both the first TDS value and the second TDS value are less than the first preset TDS value, and the absolute value of the difference between the first TDS value and the second TDS value is less than the preset TDS difference, it indicates that the water supply pipe will not have a significant impact on the quality of the flowing water, and there is no need to sterilize or disinfect the water supply pipe, thus the pipe sterilization mode is not executed.

[0107] The pipeline sterilization mode involves the inlet valve cutting off a portion of the pipeline from the second end of the water supply pipe to the connection point between the water supply pipe and the second end of the return pipe. This controls the operation of the return water pump and the water supply pump, drawing the high-temperature water from the kettle back into the return pipe and circulating it within the sterilization flow path to sterilize the return pipe and the water supply pipe at high temperature.

[0108] Specifically, when the pipeline sterilization mode is executed, the inlet valve cuts off a portion of the pipeline from the second end of the water supply pipe to the connection point between the water supply pipe and the second end of the return pipe. The return pump and the water supply pump operate according to the following rules: During the first time period when the pipeline sterilization mode is activated, the flow rate of the return pump is made greater than that of the water supply pump to ensure the circulation sterilization flow path is open and to pump the hot water in the kettle back into the return pipe, filling it with sufficient return water. Then, the flow rate of the return pump is made equal to that of the water supply pump to ensure that the hot water can circulate stably within the circulation sterilization flow path, thereby sterilizing and disinfecting the water supply pipe. Finally, during the second time period when the pipeline sterilization mode is stopped, the flow rate of the return pump is made less than that of the water supply pump, thereby transporting the water in the circulation sterilization flow path to the kettle through the water supply pipe, maximizing the discharge of water from the return pipe and preventing its accumulation.

[0109] It should be noted that although this embodiment describes the steps in the order of executing step S31 first and then step S32, this should not limit the scope of protection of the present invention. In practical applications, step S32 can be executed first and then step S31; or steps S32 and S31 can be executed simultaneously, and step S33 can be executed when both the first TDS value and the second TDS value are less than the first preset TDS value, and step S4 can be executed when the first TDS value and / or the second TDS value are not less than the first preset TDS value.

[0110] Compared to the implementation method of Embodiment 1, this embodiment sterilizes and disinfects the water supply pipes even when there is contamination within the pipes, but the degree of contamination is not yet below a preset level. This better ensures the cleanliness of the water supply pipes, maximizes water safety, and provides a better user experience.

[0111] Example 3

[0112] Please see Figure 6 Based on Example 1 or Example 2, before executing step S4 and the pipeline sterilization mode, the pipeline sterilization and disinfection control method of the tea bar machine of the present invention further includes:

[0113] S301: Obtain the water level and actual water temperature in the kettle.

[0114] Specifically, the kettle is equipped with a water level sensor and a temperature sensor to detect the water level and temperature inside the kettle.

[0115] After obtaining the water level and actual temperature in the kettle, it is possible to determine whether the water in the kettle meets the requirements for reflux sterilization based on the water level and actual temperature, and then determine whether to execute the boiling mode first.

[0116] S302: Determine the pipeline contamination level based on the first TDS value and the second TDS value.

[0117] Based on the first and second TDS values, the pipeline contamination level is determined, so as to determine whether to execute the boiling mode first, according to the pipeline contamination level, water level and actual water temperature.

[0118] S303: Depending on the pipeline contamination level, water level, and actual water temperature, selectively execute the water heating mode before executing the pipeline sterilization mode.

[0119] Based on the pipeline contamination level, water level, and actual water temperature, determine whether to execute the water boiling mode before executing the pipeline sterilization mode. If the water boiling mode needs to be executed first, then fill the pipeline with water and start boiling. After the water boiling is completed, execute step S4 to execute the pipeline sterilization mode. If the water boiling mode does not need to be executed first, then directly execute step S4 to execute the pipeline sterilization mode.

[0120] In one specific embodiment, when the first TDS value is not less than the first preset TDS value, step S302, "determining the pipeline contamination level based on the first TDS value and the second TDS value," includes:

[0121] S3021: Determine whether the first TDS value is less than the third preset TDS value. Wherein, the third preset TDS value is greater than the first TDS value.

[0122] S3022: If the first TDS value is less than the third preset TDS value, the pipeline pollution level is determined to be the second level.

[0123] S3023: If the first TDS value is not less than the third preset TDS value, then the pipeline pollution level is determined to be level three.

[0124] In one specific embodiment, when the first TDS value is less than the first preset TDS value and the second TDS value is not less than the first preset TDS value, step S302, "determining the pipeline contamination level based on the first TDS value and the second TDS value," includes:

[0125] S3021: Determine whether the second TDS value is less than the third preset TDS value. Wherein, the third preset TDS value is greater than the first TDS value.

[0126] S3022: If the second TDS value is less than the third preset TDS value, the pipeline contamination level is determined to be the second level.

[0127] S3023: If the second TDS value is not less than the third preset TDS value, then the pipeline pollution level is determined to be level three.

[0128] In one specific embodiment, when both the first TDS value and the second TDS value are less than the first preset TDS value, step S302 "determine the pipeline contamination level based on the first TDS value and the second TDS value" includes: determining the pipeline contamination level as the first level.

[0129] The third preset TDS value is greater than the first preset TDS value.

[0130] Specifically, the pipeline contamination level includes three levels: Level 1, Level 2, and Level 3. The contamination level of Level 1, Level 2, and Level 3 gradually increases. The pipeline contamination level is determined by the magnitude of the first TDS value, the second TDS value, and the first preset TDS value and the third preset TDS value, so as to determine the water temperature required for sterilization and thus ensure that the rapid sterilization and disinfection box sterilizes thoroughly.

[0131] In one embodiment, step S303, "selectively executing the water boiling mode before executing the pipeline sterilization mode, based on the pipeline contamination level, water level, and actual water temperature," includes:

[0132] S3031: Determine the required sterilization temperature based on the pipeline contamination level.

[0133] Different levels of pipeline contamination correspond to different sterilization temperatures. Specifically, the controller stores a "Sterilization Temperature and Pipeline Contamination Level Comparison Table". Once the pipeline contamination level is determined, the sterilization temperature required for this pipeline sterilization mode can be determined through the "Sterilization Temperature and Pipeline Contamination Level Comparison Table".

[0134] S3032: Compare the sterilization temperature with the actual water temperature.

[0135] By comparing the sterilization temperature with the actual temperature, it can be determined whether the actual temperature of the water in the kettle meets the sterilization requirements, so as to further determine whether it is necessary to boil the water first.

[0136] Specifically, if the actual water temperature is not lower than the sterilization temperature, then step S3033 is executed; if the actual water temperature is lower than the sterilization temperature, then step 3035 is executed.

[0137] S3033: Determine the volume of water in the kettle based on the water level.

[0138] If the actual water temperature is not lower than the sterilization temperature, it means that the water in the kettle meets the sterilization requirements. Therefore, it is necessary to determine again whether the remaining water in the kettle can support reflux sterilization, and thus determine the volume of water in the kettle based on the water level.

[0139] Specifically, the controller stores a "Kettle Water Level and Water Quantity Comparison Table". The kettle has a fixed volume. After determining the water level in the kettle, the volume of water in the kettle can be determined using the "Kettle Water Level and Water Quantity Comparison Table".

[0140] S3034: Compare the volume with the preset volume.

[0141] The volume is compared with the preset volume to determine whether there is enough water in the kettle to ensure smooth circulation and sterilization.

[0142] Specifically, if the volume is not less than the preset volume, it means that there is enough water in the kettle, so the boiling mode is not executed and step S4 is executed directly to execute the pipeline sterilization mode; if the volume is less than the preset volume, it means that there is not enough water in the kettle to perform circulation sterilization, so water needs to be added and boiled first, so step S3035 is executed first to execute the boiling mode, and after the boiling mode ends, step S4 is executed to execute the pipeline sterilization mode.

[0143] S3035: Executes water heating mode, and after the water heating mode ends, executes pipeline sterilization mode.

[0144] If there is not enough water in the kettle or the water in the kettle does not meet the sterilization temperature, the boiling mode will be executed first, and the pipeline sterilization mode will be executed after the boiling mode is completed.

[0145] The water boiling mode involves opening the inlet valve, running the water pump, closing the return pump, filling the kettle with water to the maximum level, and then boiling the water until it boils and stops.

[0146] Before executing the pipeline sterilization mode, the pipeline sterilization and disinfection control method in this embodiment further includes: obtaining the water level and actual water temperature in the kettle; determining the pipeline contamination level based on the first TDS value and the second TDS value; and determining whether to execute the boiling mode first based on the pipeline contamination level, water level, and actual water temperature. This setting ensures that before executing the pipeline sterilization mode, the kettle has enough water to meet the sterilization and disinfection requirements and support the execution of the pipeline sterilization mode.

[0147] Example 4

[0148] Please see Figure 7Based on Embodiment 1, Embodiment 2, or Embodiment 3, during the execution of step S4 "execute pipeline sterilization mode", the pipeline sterilization and disinfection control method of the tea bar machine of the present invention further includes:

[0149] S41: Real-time acquisition of the TDS value detected by the TDS detection device before the pump, recorded as the first sterilization TDS value;

[0150] S42: Real-time acquisition of the TDS value detected by the TDS detection device after the pump, recorded as the second sterilization TDS value;

[0151] S43: Determine whether the first sterilization TDS value is less than the second preset TDS value.

[0152] The first sterilization TDS value is compared with the second preset TDS value so that the pipeline sterilization mode can be selectively stopped based on whether the first sterilization TDS value is less than the second preset TDS value.

[0153] Specifically, before leaving the factory, the controller of the tea bar machine stores a second preset TDS value.

[0154] Specifically, "selectively stopping the pipeline sterilization mode based on the comparison result of whether the first sterilization TDS value is less than the second preset TDS value" includes: if the first sterilization TDS value is not less than the second preset TDS value, then step S45 is executed to continue executing the pipeline sterilization mode; if the first sterilization TDS value is less than the second preset TDS value, then step S44 is executed.

[0155] S44: Determine whether the second sterilization TDS value is less than the second preset TDS value.

[0156] The second sterilization TDS value is compared with the second preset TDS value so that the pipeline sterilization mode can be selectively stopped based on whether the second sterilization TDS value is less than the second preset TDS value.

[0157] Specifically, "selectively stopping the execution of pipeline sterilization mode based on the comparison result of whether the second sterilization TDS value is less than the second preset TDS value" includes: if the second sterilization TDS value is not less than the second preset TDS value, then execute step S45 to continue executing the pipeline sterilization mode; if the second sterilization TDS value is less than the second preset TDS value, then execute step S46 to stop executing the pipeline sterilization mode.

[0158] S45: Continue executing pipeline sterilization mode.

[0159] If the first sterilization TDS value is not less than the second preset TDS value or the second sterilization TDS value is not less than the second preset TDS value, it indicates that the water supply pipe has not been sterilized. Therefore, the pipe sterilization mode will continue to be executed, and the backflow sterilization will continue.

[0160] S46: Stop executing pipeline sterilization mode.

[0161] If the first sterilization TDS value is less than the second preset TDS value and the second sterilization TDS value is less than the second preset TDS value, it indicates that the water supply pipeline has been sterilized, and therefore the pipeline sterilization mode is stopped.

[0162] In this embodiment, the second preset TDS value is less than the first preset TDS value.

[0163] This embodiment determines whether to end the pipeline sterilization mode by comparing two sterilization TDS values ​​with a second preset TDS value, which can effectively ensure that sterilization is in place.

[0164] It should be noted that although this example describes the execution of step S43 first and then step S44, this should not limit the scope of protection of the present invention. In practical applications, step S44 can be executed first and then step S43; or steps S43 and S44 can be executed simultaneously. Step S46 is executed when both the first sterilization TDS value and the second TDS value are less than the second preset TDS value, and step S45 is executed when the first sterilization TDS value and / or the second sterilization TDS value are not less than the second preset TDS value.

[0165] Example 5

[0166] Please see Figure 8 Based on Embodiment 1, Embodiment 2, or Embodiment 3, during the execution of step S4 "execute pipeline sterilization mode", the pipeline sterilization and disinfection control method of the tea bar machine of the present invention further includes:

[0167] S401: After starting the pipeline sterilization mode, until the first preset time, obtain the return temperature of the return sterilization water flowing in the circulating sterilization flow path.

[0168] During the first preset time of the pipeline sterilization mode, the reflux temperature of the reflux sterilization water flowing in the circulating sterilization flow path is obtained. That is, the temperature of the reflux sterilization water is detected during the stable reflux process so that the sterilization reflux time can be determined based on the reflux temperature.

[0169] Specifically, a temperature sensor is installed on the return pipe to detect the temperature of the return sterilization water flowing through the return pipe.

[0170] The first preset time can be set to 10 seconds or 15 seconds, etc. There are no restrictions on the specific time of the first preset time, as long as the node for detecting the reflux temperature of the sterilized water is when the water in the kettle is successfully drawn back into the reflux pipe and circulates stably in the circulating sterilization flow path.

[0171] S402: Determine the pipeline contamination level based on the first TDS value and the second TDS value.

[0172] The contamination level of the pipeline is determined based on the first and second TDS values, so that the sterilization reflux time can be determined according to the contamination level and reflux temperature.

[0173] S403: Determine the sterilization reflux time based on the pipeline contamination level and reflux temperature.

[0174] After determining the pipeline contamination level and return temperature, the sterilization return time is determined based on the pipeline contamination level and return temperature. This allows for the determination of the actual execution time of the pipeline sterilization mode based on the current situation, in order to control the operation.

[0175] Specifically, the controller stores a "Comparison Table of Pipeline Contamination Level, Return Temperature and Sterilization Return Time". After determining the pipeline contamination level and return temperature, the sterilization return time is determined according to the "Comparison Table of Pipeline Contamination Level, Return Temperature and Sterilization Return Time".

[0176] S404: Real-time acquisition of the actual execution time of the sterilization mode in the execution pipeline.

[0177] Specifically, the actual execution time is obtained by subtracting the current node from the node when the pipeline sterilization mode was started.

[0178] S405: Selectively stop the pipeline sterilization mode based on the actual execution time and sterilization reflux time.

[0179] Specifically, step S405, "selectively stopping the pipeline sterilization mode based on the actual execution time and sterilization return time," includes: S4051: determining whether the actual execution time is less than the sterilization return time; S4052: if the actual execution time is less than the sterilization return time, continuing to execute the pipeline sterilization mode; S4053: if the actual execution time is not less than the sterilization return time, stopping the pipeline sterilization mode.

[0180] In one specific embodiment, when the first TDS value is not less than the first preset TDS value, step S402, "determining the pipeline contamination level based on the first TDS value and the second TDS value," includes:

[0181] S4021: Determine whether the first TDS value is less than the third preset TDS value. Wherein, the third preset TDS value is greater than the first TDS value.

[0182] S4022: If the first TDS value is less than the third preset TDS value, the pipeline contamination level is determined to be the second level.

[0183] S4023: If the first TDS value is not less than the third preset TDS value, then the pipeline pollution level is determined to be the third level.

[0184] In one specific embodiment, when the first TDS value is less than the first preset TDS value and the second TDS value is not less than the first preset TDS value, step S402, "determining the pipeline contamination level based on the first TDS value and the second TDS value," includes:

[0185] S4021: Determine whether the second TDS value is less than the third preset TDS value. Wherein, the third preset TDS value is greater than the first TDS value.

[0186] S4022: If the second TDS value is less than the third preset TDS value, the pipeline contamination level is determined to be the second level.

[0187] S4023: If the second TDS value is not less than the third preset TDS value, then the pipeline pollution level is determined to be level three.

[0188] In one specific embodiment, when both the first TDS value and the second TDS value are less than the first preset TDS value, step S402 "determine the pipeline contamination level based on the first TDS value and the second TDS value" includes: determining the pipeline contamination level as the first level.

[0189] The third preset TDS value is greater than the first preset TDS value.

[0190] Specifically, before leaving the factory, the controller of the tea bar machine stores a third preset TDS value.

[0191] Specifically, the pipeline contamination level includes three levels: Level 1, Level 2, and Level 3. The contamination level of Level 1, Level 2, and Level 3 gradually increases. The pipeline contamination level is determined by the magnitude of the first TDS value, the second TDS value, and the first preset TDS value and the third preset TDS value, so as to determine the water temperature required for sterilization and thus ensure that the rapid sterilization and disinfection box sterilizes thoroughly.

[0192] This embodiment determines whether to end the pipeline sterilization mode by comparing the actual execution time and the sterilization backflow time. This allows for timely cessation of the pipeline sterilization mode, minimizing the pipeline sterilization operation time and ensuring no impact on user water usage.

[0193] The technical solution of the present invention has been described above with reference to the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the scope of protection of the present invention is obviously not limited to these specific embodiments. Without departing from the principles of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after such changes or substitutions will all fall within the scope of protection of the present invention.

Claims

1. A tea bar machine, comprising a kettle, a water pump, and a water supply pipe, wherein a first end of the water supply pipe is connected to the kettle, a second end of the water supply pipe is connected to a purified water tank, the water pump is installed on the water supply pipe, and the water pump is used to deliver water from the purified water tank toward the kettle, characterized in that... The tea bar machine also includes a return pipe, a return water pump installed on the return pipe, and a water inlet valve installed on the water supply pipe. Both ends of the return pipe are connected to the water supply pipe. The first end of the return pipe is located between the water supply pump and the kettle and is close to the kettle. The second end of the return pipe is located close to the second end of the water supply pipe. The return pipe and the water supply pipe form a circulating sterilization flow path. The return water pump is used to transport water from the first end of the return pipe to the second end. The water inlet valve is located close to the second end of the water supply pipe and is configured to control the on / off state of the portion of the pipe from the second end of the water supply pipe to the connection point between the water supply pipe and the second end of the return pipe.

2. The tea bar machine according to claim 1, characterized in that, The inlet valve is a one-way valve or a two-way solenoid valve, and the second end of the return pipe is located between the water pump and the inlet valve, and is set close to the inlet valve; Alternatively, the inlet valve is a three-way valve, with the first port of the three-way valve connected to the pure water tank, the second port of the three-way valve connected to the water supply pump through the water supply pipe, and the third port of the three-way valve connected to the second end of the return pipe.

3. A method for controlling the sterilization and disinfection of pipes in a tea bar machine, characterized in that, The tea bar machine is the tea bar machine according to claim 1 or 2. The tea bar machine further includes a pre-pump TDS detection device and a post-pump TDS detection device disposed on the water supply pipe. The pre-pump TDS detection device is located between the water supply pump and the water inlet valve and between the water supply pump and the second end of the return pipe. The post-pump TDS detection device is located between the water supply pump and the first end of the return pipe and is disposed close to the kettle. The pipeline sterilization and disinfection control method includes: The TDS value detected by the TDS detection device before the pump is obtained and recorded as the first TDS value; The TDS value detected by the TDS detection device after the pump is obtained and recorded as the second TDS value; Based on the first TDS value and the second TDS value, a pipeline sterilization mode is selectively executed; The pipeline sterilization mode is as follows: the inlet valve cuts off a portion of the pipeline from the second end of the water supply pipe to the connection point between the water supply pipe and the second end of the return pipe, controls the operation of the return water pump and the water supply pump, and pumps the high-temperature water in the kettle back into the return pipe and circulates it in the circulating sterilization flow path to sterilize the return pipe and the water supply pipe at high temperature.

4. The method for sterilizing and disinfecting the pipelines of the tea bar machine according to claim 3, characterized in that, The step of "selectively executing pipeline sterilization mode based on the first TDS value and the second TDS value" specifically includes: Compare the first TDS value with the first preset TDS value; Compare the second TDS value with the first preset TDS value; Based on the comparison results of the first TDS value and the first preset TDS value and the comparison results of the second TDS value and the first preset TDS value, the pipeline sterilization mode is selectively executed.

5. The method for controlling the sterilization and disinfection of the pipelines of the tea bar machine according to claim 4, characterized in that, The step of "selectively executing the pipeline sterilization mode based on the comparison result of the first TDS value and the first preset TDS value and the comparison result of the second TDS value and the first preset TDS value" specifically includes: If the first TDS value and / or the second TDS value are not less than the first preset TDS value, then the pipeline sterilization mode is executed.

6. The method for controlling the sterilization and disinfection of the pipelines of the tea bar machine according to claim 4, characterized in that, The step of "selectively executing the pipeline sterilization mode based on the comparison result of the first TDS value and the first preset TDS value and the comparison result of the second TDS value and the first preset TDS value" specifically includes: If both the first TDS value and the second TDS value are less than the first preset TDS value, the pipeline sterilization mode will not be executed.

7. The method for controlling the sterilization and disinfection of pipelines in a tea bar machine according to claim 4, characterized in that, The step of "selectively executing the pipeline sterilization mode based on the comparison result of the first TDS value and the first preset TDS value and the comparison result of the second TDS value and the first preset TDS value" specifically includes: If both the first TDS value and the second TDS value are less than the first preset TDS value, then the difference between the first TDS value and the second TDS value is calculated. The absolute value of the difference is compared with a preset TDS difference; If the absolute value of the difference is not less than the preset TDS difference, then the pipeline sterilization mode is executed; If the absolute value of the difference is less than the preset TDS difference, the pipeline sterilization mode will not be executed.

8. The method for sterilizing and disinfecting the pipelines of the tea bar machine according to any one of claims 3 to 7, characterized in that, Before executing the pipeline sterilization mode, the pipeline sterilization and disinfection control method further includes: To obtain the water level and actual water temperature inside the kettle; The pipeline contamination level is determined based on the first TDS value and the second TDS value; Based on the pipeline contamination level, the water level, and the actual water temperature, a water boiling mode may be selectively executed before the pipeline sterilization mode.

9. The method for sterilizing and disinfecting the pipelines of a tea bar machine according to any one of claims 3 to 7, characterized in that, During the execution of the pipeline sterilization mode, the pipeline sterilization and disinfection control method further includes: The TDS value detected by the TDS detection device before the pump is acquired in real time and recorded as the first sterilization TDS value; The TDS value detected by the TDS detection device after the pump is acquired in real time and recorded as the second sterilization TDS value; Compare the first sterilization TDS value with the second preset TDS value; Compare the second sterilization TDS value with the second preset TDS value; Based on the comparison results of the first sterilization TDS value and the second preset TDS value, and the comparison results of the second sterilization TDS value and the second preset TDS value, the pipeline sterilization mode is selectively stopped.

10. The method for sterilizing and disinfecting the pipelines of a tea bar machine according to any one of claims 3 to 7, characterized in that, During the execution of the pipeline sterilization mode, the pipeline sterilization and disinfection control method further includes: After the pipeline sterilization mode is started, the reflux temperature of the reflux sterilization water flowing in the circulating sterilization flow path is obtained after a first preset time. The pipeline contamination level is determined based on the first TDS value and the second TDS value; The sterilization reflux time is determined based on the contamination level of the pipeline and the reflux temperature. Real-time acquisition of the actual execution time of the pipeline sterilization mode; Based on the actual execution time and the sterilization reflux time, the pipeline sterilization mode can be selectively stopped.

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