White spirit flowing temperature automatic control system for white spirit brewing

Abstract

The utility model discloses an automatic liquor flowing temperature control system for liquor brewing, which relates to the technical field of liquor brewing and comprises a liquor retort, a condenser communicated with the liquor retort, a condensation pipeline system communicated with the condenser, a programmable logic controller, a sensing system and a control system executing mechanism. The sensing system and the control system execution mechanism are both in signal connection with the programmable logic controller. By means of the electric regulating valve, the manual ball valve, the temperature sensor, the capacitive sensor and a cascade PI D regulating algorithm, high-precision stable control over the liquor flowing temperature in the liquor brewing process is achieved, the hysteresis problem in the indirect heat exchange process is solved, and the control precision and stability of the liquor flowing temperature are improved.

Description

Technical Field

[0001] This utility model relates to the field of liquor brewing technology, and more specifically to the field of an automatic control system for the temperature of liquor flow during liquor brewing. Background Technology

[0002] In the process of baijiu brewing, the control of the flowing liquor temperature has a significant impact on the quality of the liquor. Traditional methods often rely on manual experience or real-time monitoring of the flowing liquor temperature to directly control the opening of the circulating water inlet valve. When the flowing liquor temperature changes significantly, the valve opening is then adjusted. Due to the inherent lag in indirect heat exchange, this method cannot promptly correct temperature fluctuations; it can only slowly correct the trend of temperature changes. It is difficult to achieve precise and stable flowing liquor temperature control, which has a particularly critical impact on liquor quality. Therefore, developing a technology that can monitor and precisely control the flowing liquor temperature in real time is of paramount importance. Utility Model Content

[0003] The purpose of this utility model is to solve the technical problems of inaccurate and lag-prone temperature control in existing liquor brewing processes, and to provide an automatic temperature control system for liquor brewing.

[0004] To achieve the above objectives, this utility model specifically adopts the following technical solution:

[0005] This utility model provides an automatic control system for the temperature of liquor brewing, including a still, a condenser connected to the still, a condensation pipeline system connected to the condenser, a programmable logic controller, a sensing system, and a control system actuator. The sensing system and the control system actuator are both connected to the programmable logic controller.

[0006] Specifically, the programmable logic controller (PLC) combines the circulating water temperature of the condenser piping system, the circulating water temperature inside the condenser, and the flow temperature, and applies a PID algorithm combined with cascade PID control to write a control algorithm to output control signals, which then control the system's actuators.

[0007] The control system actuators include, for example, the condenser inlet valve, which adjusts the opening of the circulating water inlet valve according to the output of the control algorithm.

[0008] In one embodiment, the sensing system includes an integrated temperature transmitter, a fast-response temperature sensor, a temperature transmitter, and a capacitive sensor.

[0009] In one embodiment, the control system actuators include a first manual ball valve, an electric regulating valve, a second manual ball valve, and a third manual ball valve.

[0010] In one embodiment, the still includes a still body disposed above the ground for loading materials, a still lid for sealing the still body, and a heating pot disposed below the ground for heating the still body. The top of the still lid is provided with a vent, which is connected to the vent of the condenser.

[0011] In one embodiment, the condenser includes a shell, a head disposed on the top of the shell, and a conical collecting hopper disposed at the bottom of the shell. A liquid outlet pipe is disposed at the bottom of the conical collecting hopper, and a temperature transmitter and a capacity sensor are disposed on the liquid outlet pipe.

[0012] Specifically, the capacitive sensor is installed below the tempered glass connecting pipe after the temperature sensor on the outlet pipe to detect the flow status of the wine.

[0013] In one embodiment, the shell is a double-layer shell, which includes an outer shell and an inner shell. A cooling cavity is formed between the outer shell and the inner shell. The cooling cavity is provided with a cooling inlet and a cooling outlet. A condensation pipe system is connected to the cooling inlet and the cooling outlet of the cooling cavity, respectively.

[0014] In one embodiment, the condensation piping system includes a low-temperature main pipe and a high-temperature main pipe. The low-temperature main pipe is connected to the cooling inlet via a circulating water branch pipe, and the high-temperature main pipe is connected to the cooling outlet via a return water branch pipe.

[0015] In one embodiment, a first circulating water branch pipe and a second circulating water branch pipe are connected in parallel near the cooling inlet on the circulating water branch pipe. A first manual ball valve, an electric regulating valve, and a second manual ball valve are sequentially installed on the second circulating water branch pipe, and a third manual ball valve is installed on the first circulating water branch pipe.

[0016] In one embodiment, the integrated temperature transmitter is located on the circulating water branch pipe at the front end of the parallel first and second circulating water branch pipes.

[0017] Specifically, the integrated temperature transmitters are installed on the circulating water branch pipes near the condenser connection and on the low-temperature main pipe, respectively, to detect the flow temperature and the circulating water inlet temperature in real time.

[0018] In one embodiment, the fast-response temperature sensor is located in the cooling water temperature-changing layer (i.e., the transition layer between low-temperature water and high-temperature water) inside the condenser, at a position approximately one-third of the height above the bottom of the condenser.

[0019] Specifically, the fast-response temperature sensor is installed in the variable-temperature sensitive layer (double-layer housing) of the condenser housing.

[0020] A control method for an automatic control system for the temperature of liquor flow during baijiu brewing includes the following steps:

[0021] S1. Temperature data acquisition: The temperature of the circulating water temperature-sensitive layer, the flow temperature, and the circulating water inlet temperature are collected in real time through temperature sensors at various locations.

[0022] S2. Wine Flow Status Detection: A capacitive sensor is used to detect whether wine is flowing through the wine pipe. The temperature control system automatically starts and stops based on the wine flow status detected by the sensor.

[0023] Applications of S3 and PID control algorithms:

[0024] When the circulating water inlet temperature is lower than the target flow temperature, the set target flow temperature is used as the control target. When the circulating water inlet temperature is higher than the target flow temperature, the circulating water temperature is used as the control target temperature to avoid ineffective use of circulating water, reduce waste, and alert on-site personnel via audible and visual alarms. Based on the real-time flow temperature, the output value of the PID control algorithm is used as the control target temperature for the circulating water temperature-sensitive layer inside the condenser. Furthermore, based on the real-time temperature data of the circulating water temperature-sensitive layer inside the condenser, the PID algorithm outputs the opening degree of the condenser inlet valve, achieving precise and stable control of the flow temperature.

[0025] S4. Cascade PID Control: The cascade PID control method is adopted, with the real-time flow temperature as the main control loop and the real-time temperature of the circulating water temperature-sensitive layer in the condenser as the secondary control loop, which improves the system response speed and solves the lag problem.

[0026] The beneficial effects of this utility model are as follows:

[0027] 1. This system achieves high-precision and stable control of the liquor temperature during the brewing process by using electric regulating valves, manual ball valves, temperature sensors, capacitive sensors, and cascaded PID control algorithms. It solves the lag problem in the indirect heat exchange process and improves the control accuracy and stability of the liquor temperature.

[0028] 2. It achieves high-precision and stable control of the temperature of the flowing wine, improves the stability and consistency of the wine quality, and provides a stable experimental platform and data for testing the relationship between the temperature of the flowing wine and the quality of the wine.

[0029] 3. By using cascaded PID control, the response speed and stability of temperature control are significantly improved, and the lag problem in the indirect heat exchange process is solved.

[0030] 4. The entire process is automated, reducing manual intervention and labor intensity, and improving production efficiency. Attached Figure Description

[0031] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0032] Figure 1 This is a schematic diagram of the structure of this utility model;

[0033] Reference numerals: 1-Integrated temperature transmitter, 2-First manual ball valve, 3-Electric regulating valve, 4-Second manual ball valve, 5-Third manual ball valve, 6-Fast response temperature sensor, 7-Temperature transmitter, 8-Capacitive sensor. Detailed Implementation

[0034] To make the technical problems, technical solutions, and technical effects of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0035] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0036] It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0037] In the description of the embodiments of this utility model, it should be noted that the terms "inner", "outer", "upper", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the utility model product is usually placed when in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0038] Example 1

[0039] like Figure 1 As shown, this embodiment provides an automatic control system for the temperature of liquor brewing, including a still, a condenser connected to the still, a condensation pipeline system connected to the condenser, a programmable logic controller, a sensing system, and a control system actuator. The sensing system and the control system actuator are both connected to the programmable logic controller via signals.

[0040] Specifically, the programmable logic controller (PLC) combines the circulating water temperature of the condenser piping system, the circulating water temperature inside the condenser, and the flow temperature. It applies the PID algorithm combined with cascade PID control to write a control algorithm and output control signals to control the system actuators.

[0041] The control system actuators include, for example, the condenser inlet valve, which adjusts the opening of the circulating water inlet valve according to the output of the control algorithm.

[0042] Example 2

[0043] like Figure 1 As shown, this embodiment provides an automatic control system for the temperature of liquor brewing, including a still, a condenser connected to the still, a condensation pipeline system connected to the condenser, a programmable logic controller, a sensing system, and a control system actuator. The sensing system and the control system actuator are both connected to the programmable logic controller via signals.

[0044] The sensing system includes an integrated temperature transmitter 1, a fast-response temperature sensor 6, a temperature transmitter 7, and a capacitive sensor 8.

[0045] The control system actuators include a first manual ball valve 2, an electric regulating valve 3, a second manual ball valve 4, and a third manual ball valve 5.

[0046] Example 3

[0047] like Figure 1 As shown, this embodiment provides an automatic control system for the temperature of liquor brewing, including a still, a condenser connected to the still, a condensation pipeline system connected to the condenser, a programmable logic controller, a sensing system, and a control system actuator. The sensing system and the control system actuator are both connected to the programmable logic controller via signals.

[0048] The sensing system includes an integrated temperature transmitter 1, a fast-response temperature sensor 6, a temperature transmitter 7, and a capacitive sensor 8.

[0049] The control system actuators include a first manual ball valve 2, an electric regulating valve 3, a second manual ball valve 4, and a third manual ball valve 5.

[0050] The still includes a still body for loading materials, which is set above the ground, a still lid for sealing the still body, and a heating pot for heating the still body, which is set below the ground. The top of the still lid is provided with a vent, which is connected to the vent of the condenser.

[0051] The condenser includes a shell, a head located at the top of the shell, and a conical collecting hopper located at the bottom of the shell. A liquid outlet pipe is located at the bottom of the conical collecting hopper, and a temperature transmitter 7 and a capacity sensor are located on the liquid outlet pipe.

[0052] Specifically, the capacitive sensor 8 is installed below the tempered glass connecting pipe after the temperature sensor on the liquid outlet pipe to detect the flow status of the liquor.

[0053] The shell is a double shell, which includes an outer shell and an inner shell. A cooling cavity is formed between the outer shell and the inner shell. The cooling cavity is provided with a cooling inlet and a cooling outlet. The condensation pipe system is connected to the cooling inlet and cooling outlet of the cooling cavity respectively.

[0054] Example 4

[0055] This embodiment is a further optimization based on embodiment 3, specifically:

[0056] The condensation piping system includes a low-temperature main pipe and a high-temperature main pipe. The low-temperature main pipe is connected to the cooling inlet through a circulating water branch pipe, and the high-temperature main pipe is connected to the cooling outlet through a return water branch pipe.

[0057] The circulating water branch pipe has a first circulating water branch pipe and a second circulating water branch pipe connected in parallel near the cooling inlet. The first manual ball valve 2, the electric regulating valve 3 and the second manual ball valve 4 are sequentially installed on the second circulating water branch pipe, and the third manual ball valve 5 is installed on the first circulating water branch pipe.

[0058] The integrated temperature transmitter 1 is located on the circulating water branch pipe at the front end of the first and second circulating water branch pipes in parallel.

[0059] Specifically, the integrated temperature transmitter 1 is installed on the circulating water branch pipe near the condenser connection and on the low-temperature main pipe to detect the flow temperature and the circulating water inlet temperature in real time.

[0060] The fast-response temperature sensor 6 is located in the cooling water temperature-changing layer (i.e., the transition layer between low-temperature water and high-temperature water) inside the condenser, at a position about 1 / 3 of the height above the bottom of the condenser.

[0061] Specifically, the fast-response temperature sensor 6 is installed in the variable temperature sensitive layer (double-layer housing) of the condenser housing.

[0062] Example 5

[0063] This embodiment provides a control method for an automatic control system for the temperature of liquor flow during baijiu brewing, including the following steps:

[0064] S1. Temperature data acquisition: The temperature of the circulating water temperature-sensitive layer, the flow temperature, and the circulating water inlet temperature are collected in real time through temperature sensors at various locations.

[0065] S2. Wine Flow Status Detection: The capacitive sensor 8 is used to detect whether wine is flowing through the wine pipe. The temperature control system automatically starts and stops based on the wine flow status detected by the sensor.

[0066] Applications of S3 and PID adjustment algorithms:

[0067] When the circulating water inlet temperature is lower than the target flow temperature, the set target flow temperature is used as the control target. When the circulating water inlet temperature is higher than the target flow temperature, the circulating water temperature is used as the control target temperature to avoid ineffective use of circulating water and reduce waste. Based on the real-time flow temperature, the output value of the PID control algorithm is used as the control target temperature for the circulating water temperature-sensitive layer in the condenser. Furthermore, based on the real-time temperature data of the circulating water temperature-sensitive layer in the condenser, the PID algorithm is used to output the opening degree of the condenser inlet valve, achieving precise and stable control of the flow temperature.

[0068] S4. Cascade PID control: The cascade PID control method is adopted, with the real-time flow temperature of the liquid as the main control loop and the real-time temperature of the circulating water temperature-sensitive layer in the condenser as the secondary control loop, thereby improving the system response speed and solving the lag problem.

Claims

1. An automatic control system for the temperature of liquor flow during baijiu brewing, characterized in that, The system includes a still, a condenser connected to the still, a condensing piping system connected to the condenser, a programmable logic controller (PLC), a sensing system, and a control system actuator. Both the sensing system and the control system actuator are signal-connected to the PLC. The sensing system includes an integrated temperature transmitter (1), a fast-response temperature sensor (6), a temperature transmitter (7), and a capacitance sensor (8); The control system actuators include a first manual ball valve (2), an electric regulating valve (3), a second manual ball valve (4), and a third manual ball valve (5); The still includes a still body for loading materials, which is set above the ground, a still lid for sealing the still body, and a heating pot for heating the still body, which is set below the ground. The top of the still lid is provided with a vent, which is connected to the vent of the condenser.

2. The automatic control system for the temperature of liquor brewing according to claim 1, characterized in that, The condenser includes a shell, a head set on the top of the shell, and a conical collecting hopper set at the bottom of the shell. The bottom of the conical collecting hopper is provided with a liquid outlet pipe, and the temperature transmitter (7) and the capacity sensor are set on the liquid outlet pipe.

3. The automatic control system for the temperature of liquor brewing according to claim 2, characterized in that, The shell is a double-layer shell, which includes an outer shell and an inner shell. A cooling cavity is formed between the outer shell and the inner shell. The cooling cavity is provided with a cooling inlet and a cooling outlet. The condensation pipe system is connected to the cooling inlet and the cooling outlet of the cooling cavity, respectively.

4. The automatic temperature control system for liquor brewing according to claim 3, characterized in that, The condensation piping system includes a low-temperature main pipe and a high-temperature main pipe. The low-temperature main pipe is connected to the cooling inlet through a circulating water branch pipe, and the high-temperature main pipe is connected to the cooling outlet through a return water branch pipe.

5. The automatic control system for the temperature of liquor brewing according to claim 4, characterized in that, The circulating water branch pipe is connected in parallel with a first circulating water branch pipe and a second circulating water branch pipe near the cooling inlet. The first manual ball valve (2), the electric regulating valve (3), and the second manual ball valve (4) are sequentially arranged on the second circulating water branch pipe. The third manual ball valve (5) is installed on the first circulating water branch pipe.

6. The automatic control system for the temperature of liquor brewing according to claim 5, characterized in that, The integrated temperature transmitter (1) is located on the circulating water branch pipe at the front end of the first circulating water branch pipe and the second circulating water branch pipe, which are parallel to each other.

7. The automatic control system for the temperature of liquor brewing according to claim 2, characterized in that, The fast-response temperature sensor (6) is located in the cooling water temperature-changing layer inside the condenser.

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