Heating temperature control device of fermented grain smoking machine

Abstract

The utility model belongs to the technical field of vinegar brewing, and particularly discloses a heating temperature control device of a fermented grain smoking machine, which comprises a PID (Proportion Integration Differentiation) temperature controller, a power switch, a three-phase power regulator, a temperature sensing probe and a heating module, the heating module comprises at least one electric heating pipe and heat dissipation fixing devices matched with the electric heating pipes in number. The electric heating pipe is circumferentially fixed outside the production barrel containing the production elements in a surrounding mode through the heat dissipation fixing device, and the length direction of the electric heating pipe extends in the length direction of the production barrel. The three-phase power regulator is connected with one end of an electric heating tube in the heating module; the heating signal output end of the PID temperature controller is connected with the heating signal input end of the three-phase power regulator; and the signal input end of the PID temperature controller is connected with the temperature sensing probe. The device disclosed by the utility model is convenient to install, can control the heating temperature to uniformly heat production elements, and prevents the problem of burnt fermented grains in smoking fermented grains. The heating device is suitable for heating in the vinegar smoking and fermenting process.

Description

Technical Field

[0001] The utility model belongs to the technical field of vinegar brewing, and particularly relates to a heating and temperature control device for a smoked mash machine. Background Art

[0002] Vinegar is a traditional Chinese condiment, and the smoked mash process is an indispensable step in the production of vinegar. The Maillard reaction that occurs during the smoked mash process can not only increase the color of the aged vinegar to make it suitable for the public, but also make the flavor of the aged vinegar richer.

[0003] The browning rate of the Maillard reaction is significantly affected by temperature. The higher the temperature, the faster the browning. For every 10°C increase in temperature, the reaction rate increases by 3 to 5 times. However, in the actual production of smoked mash, the temperature must be controlled at 85-90°C. Temperatures that are too low are detrimental to the reaction, while temperatures that are too high can cause the material to burn and taste bitter.

[0004] The traditional process uses large vats as the main smoking equipment. The mash is smoked with charcoal fire, and the temperature is difficult to control, which does not meet environmental protection standards. The large vats are heated unevenly, and burning is easy to occur near the vat walls. In addition, the traditional process of smoking mash cycle is mostly 5 to 6 days, and manual vat turning is required every day. The smoking cycle is long and the labor intensity is high, which cannot meet the needs of modern production.

[0005] Various attempts have been made in modern production of smoked mash. Steam fumigation is typically performed by installing a coil inside or on the tank wall, through which steam at a constant temperature is introduced to significantly improve fumigation efficiency. However, the coil structure requires continuous steam flow, resulting in high pressure within the tank or coil. This not only significantly shortens the equipment's lifespan but also poses a risk of danger. Furthermore, precise temperature control using steam is difficult, making it ineffective in meeting the requirements of smoked mash. Water bath fumigation is also used. However, the water bath has a limited temperature adjustment range and cannot meet the requirements for a fragrant, aromatic flavor. Heat is conducted through liquid, and a large amount of heat is used to heat the liquid, resulting in wasted resources and increased production costs. Oil bath fumigation is also currently used. However, if liquid leaks or seeps through the oil bath, it can contaminate the product and pose a food safety risk. Air-heat fumigation is also used, but this approach can affect moisture control during fumigation, further compromising the vinegar's flavor. Furthermore, air-heat fumigation is inefficient. Electric heating and electromagnetic heating are used, but they generate heat too quickly, the existing temperature regulation is not sensitive enough, and the heating tubes are in direct contact with production factors. The temperature of the area close to the heating tubes is easily too high, and the mash is prone to becoming mushy. Summary of the Invention

[0006] The purpose of the utility model is to provide a heating and temperature control device for a smoked mash machine. The utility model is easy to install, can achieve uniform heating of production factors, and can control the heating temperature, thereby avoiding the problem of mushy mash in the smoked mash.

[0007] In order to achieve the above-mentioned purpose, the technical solutions adopted by the present invention are as follows:

[0008] A heating and temperature control device for a smoked mash machine, comprising a PID temperature controller, a power switch, a three-phase power regulator, and at least one temperature sensor for sensing production temperature, and also comprising a heating module;

[0009] The heating module includes at least one electric heating tube and a heat dissipation fixing device matching the number of electric heating tubes;

[0010] The electric heating tube is circumferentially fixed on the outside of the production barrel containing the production elements by a heat dissipation fixing device, and the length direction of the electric heating tube extends along the length direction of the production barrel;

[0011] The power output of the three-phase power regulator is connected to one end of the electric heating tube in the heating module;

[0012] The heating signal output terminal of the PID temperature controller is connected to the heating signal input terminal of the three-phase power regulator;

[0013] The temperature feedback signal input terminal of the PID temperature controller is connected to the signal output terminal of the temperature sensor;

[0014] The power supply ports of the three-phase power regulator and the PID temperature controller are connected to the power switch.

[0015] As a limitation, the heat dissipation fixing device includes a reflective plate and at least one electric heating tube fixing device;

[0016] The reflecting plate is arranged along the length direction of the electric heating tube, and includes a long strip bottom plate and two side plates integrally arranged with the bottom plate; the two side plates are respectively arranged on the long sides of the bottom plate along the length direction, and the angles formed between the two side plates and the bottom plate are both obtuse angles;

[0017] The side of the bottom plate facing the production barrel body is fixedly connected to the production barrel body through at least two connecting blocks;

[0018] The electric heating tube fixing device is fixed on the side of the bottom plate away from the production barrel body, and the electric heating tube is detachably arranged on the bottom plate of the reflecting plate through the electric heating tube fixing device.

[0019] As a further limitation, the electric heating tube fixing device is a bell mouth, and the diameter of the bell mouth gradually decreases from top to bottom with reference to the height of the production barrel;

[0020] The center line of the bell mouth coincides with the center line of the electric heating tube, the bell mouth is fixedly connected to the bottom plate of the reflector, and the minimum diameter of the bell mouth matches the diameter of the electric heating tube.

[0021] As a second limitation, the heating module also includes an insulation layer whose shape matches the production barrel body; the insulation layer is covered on the outside of the production barrel body and the electric heating tube through an insulation layer fixing bracket.

[0022] As a further limitation, the thermal insulation layer fixing bracket includes at least two thin-sheet inner and outer wall support rings that play a supporting role;

[0023] The axes of the two inner and outer wall support rings are both coaxial with the production barrel body and are in contact with the production barrel body and the insulation layer respectively.

[0024] As a limitation on the inner and outer wall support rings, each of the inner and outer wall support rings is further provided with heat flow holes for heat flow.

[0025] As a third limitation, the length of the electric heating tube is greater than or equal to the length of the production barrel.

[0026] As a fourth limitation, a contactor is provided between the three-phase power regulator and the heating module for cutting off the circuit to protect the equipment and the circuit.

[0027] As the present invention adopts the above technical solution, compared with the prior art, the technical progress achieved is:

[0028] (1) The utility model applies a PID temperature controller to smoked mash, and can realize real-time and accurate temperature adjustment in the smoked mash through a temperature probe, thus avoiding the problem of mushy mash in the smoked mash;

[0029] (2) The utility model is equipped with a reflector plate to diffuse the heat radiation of the electric heating tube, making the temperature change more uniform and more uniform;

[0030] (3) The fixing device of the electric heating tube of the utility model is a bell mouth, and the minimum diameter of the bell mouth matches the electric heating tube, which is convenient for fixing the electric heating tube; at the same time, when replacing and installing the electric heating tube, the electric heating tube can slide in along the inner wall of the bell mouth, which greatly facilitates the installation and replacement of the electric heating tube.

[0031] (4) In the present invention, the reflective plate is fixedly connected to the production barrel body through a connecting block, and the electric heating tube is fixedly connected to the reflective plate through a bell mouth. This connection method avoids direct contact between the electric heating tube and the production barrel body, greatly reduces direct heat conduction between the electric heating tube and the production barrel body, and avoids the problem of sticky mash in the smoked mash;

[0032] (5) The utility model is equipped with an insulation layer to avoid heat loss during heating, which is environmentally friendly and energy-saving;

[0033] (6) The utility model provides inner and outer wall support rings between the production barrel body and the insulation layer, which can support the insulation layer and ensure the thickness of the gap between the production barrel body and the insulation layer;

[0034] (7) The utility model is provided with heat circulation holes on the inner and outer wall support rings, which is beneficial to the circulation of hot air in the heating device and the consistency of the heating temperature in the device;

[0035] (8) The utility model adds a contactor between the three-phase power regulator and the heating module, which can cut off the current and protect the circuit and equipment in the event of an abnormal situation;

[0036] (9) The utility model can customize the number of electric heating tubes and inner and outer wall support rings according to actual production needs, thereby improving the universality of the utility model.

[0037] The utility model belongs to the technical field of vinegar brewing, can evenly heat production factors, and can control the heating temperature, thus preventing the problem of sticky mash in smoked mash. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation to the present invention.

[0039] In the attached figure:

[0040] Figure 1 This is a circuit principle block diagram in an embodiment of the present utility model;

[0041] Figure 2 This is the overall external structure diagram of the heating device in the embodiment of the utility model;

[0042] Figure 3 This is a schematic diagram of the internal structure of the heating device in the embodiment of the present utility model;

[0043] Figure 4 This is a schematic diagram of the internal structure of the heating module in a vertical state after removing the insulation layer in an embodiment of the present invention;

[0044] Figure 5 This is a schematic diagram of the internal structure of the heating module in a horizontal state after removing the insulation layer in an embodiment of the present utility model;

[0045] Figure 6 for Figure 5 Enlarged view of part A in the middle;

[0046] Figure 7 This is a schematic diagram of the connection relationship between the reflective plate and the production barrel in the embodiment of the present utility model;

[0047] Figure 8 for Figure 7 Enlarged view of part B in the middle.

[0048] In the figure: 1. production barrel body, 2. heating layer, 3. insulation layer, 4. electric heating tube, 5. inner and outer wall support rings, 6. bell mouth, 7. reflector, 8. wire, 9. heat flow hole, 10. connecting block. DETAILED DESCRIPTION

[0049] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention and are not intended to limit the present invention.

[0050] Example 1 A heating and temperature control device for a smoked mash machine

[0051] This embodiment is used for the smoked mash process of vinegar and is a heating and temperature control device in the entire smoked mash machine. Figures 1 to 8 This embodiment will be described in detail.

[0052] This embodiment is a heating and temperature control device for a smoked mash machine, including: Figure 1 The diagram shows a PID temperature controller, a temperature probe for sensing production temperature, a three-phase power regulator, a contactor, a power switch, and a heating module. The PID temperature controller's heating signal output is connected to the three-phase power regulator's heating signal input. The PID temperature controller's temperature feedback signal input is connected to the temperature probe's signal output. The power ports of the three-phase power regulator and the PID temperature controller are connected to the power switch. The three-phase power regulator's current output is connected to the contactor's input, and the contactor's output is connected to the heating module's current input.

[0053] The contactor is a device that can quickly disconnect the AC and DC main circuits and can frequently connect and disconnect high-current control circuits. In this embodiment, when an abnormal situation occurs, it can cut off the circuit between the three-phase power regulator and the heating module to play a protective role.

[0054] In this embodiment, there are five temperature sensing probes, which are respectively arranged at the top of the production element, the middle of the production element, the bottom of the production element, the surface of the production barrel 1 and the inside of the heating layer 2.

[0055] like Figures 2 to 8As shown, the heating module includes five electric heating tubes 4, five heat dissipation fixtures located between the electric heating tubes 4 and the production barrel 1, and an outer insulation layer 3. The electric heating tubes 4 are circumferentially surrounded and fixed to the outside of the production barrel 1 by the heat dissipation fixtures. The length of the electric heating tubes 4 extends along the length of the production barrel 1 and is greater than the length of the production barrel 1. The gap between the production barrel 1 and the insulation layer 3 forms the heating layer 2. The electric heating tubes 4 and the heat dissipation fixtures are located in the heating layer 2. One end of the electric heating tube 4 is connected to the output of the contactor via a wire 8.

[0056] The heat dissipation fixture includes a reflector 7 and three bell-shaped mouths 6 with diameters gradually decreasing from top to bottom. The reflector 7 is arranged along the length of the electric heating tube 4. The reflector 7 includes a long strip-shaped bottom plate and two side plates integrally provided with the bottom plate. The two side plates are respectively arranged along the long sides of the bottom plate along the length direction, and the angles formed between the two side plates and the bottom plate are both obtuse angles.

[0057] To secure the reflector 7 and reduce the direct contact area between the reflector 7 and the production barrel 1, the side of the bottom plate of the reflector 7 near the production barrel 1 is fixedly connected to the production barrel 1 via six connecting blocks 10. In this embodiment, to secure the electric heating tube 4 and reduce the direct contact area between the electric heating tube 4 and the bell mouth, the side of the bottom plate near the electric heating tube 4 is fixedly connected to the largest diameters of the three bell mouths 6. The smallest diameter of the bell mouth 6 matches the diameter of the electric heating tube 4, and the centerline of the bell mouth 6 coincides with the centerline of the electric heating tube 4. Matching here means that the electric heating tube 4 can just pass through the smallest diameter of the bell mouth 6.

[0058] In this embodiment, four thin-sheet inner and outer wall support rings 5 ​​are provided in the heating layer 2 to play a supporting role.

[0059] The axis of the inner and outer wall support rings 5 ​​is coaxial with the production barrel body 1, and is in contact with the production barrel body 1 and the insulation layer 3. Thirty-five heat circulation holes 9 for hot air circulation are also circumferentially provided on the inner and outer wall support rings 5.

[0060] When this embodiment is used, the production factor is located in the production barrel body 1, and five temperature probes are respectively arranged at the top of the production factor, the middle of the production factor, the bottom of the production factor, the surface of the production barrel body 1, and the heating layer 2. Turn on the power switch, and set the set temperatures corresponding to the five temperature probes on the PID temperature controller according to the different positions of the five temperature probes. The temperature probe detects the temperature of the production factor, generates a temperature feedback signal and feeds it back to the PID temperature controller. The PID temperature controller sends a control signal to the three-phase power regulator based on the temperature feedback signal, controls the current size and duration transmitted by the three-phase power regulator to the electric heating tube 4, and further controls the heating of the electric heating tube 4. A reflector 7 is provided on the outer cover of the electric heating tube 4, which diffuses the heat radiation of the electric heating tube 4. The reflector 7 and the production barrel body 1 are in direct contact only through the connecting block 10, avoiding the possible occurrence of sticky mash. The inner and outer wall support rings 5 ​​are located between the production barrel 1 and the insulation layer 3. Thirty-five heat flow holes 9 allow hot air to circulate between the production barrel 1 and the insulation layer 3, maintaining a consistent overall temperature and thus providing uniform and gentle heating of the production elements. The temperature sensors provide real-time temperature feedback to the PID temperature controller. The PID temperature controller adjusts the current level and duration of the three-phase power regulator's transmission to the electric heating tube 4 based on the temperatures at the five temperature sensors. This ensures that the production elements are consistently at an appropriate temperature, preventing the problem of mushy mash during smoked mash. During installation and replacement of the electric heating tube 4 in this embodiment, the bell mouth 6 allows the end of the electric heating tube 4 not connected to the contactor to slide against the inner wall of the bell mouth 6 during insertion and fixing, greatly simplifying the installation of the electric heating tube 4. If a circuit anomaly occurs, or if the temperature detected by the temperature sensor exceeds the set value, the contactor disconnects the three-phase power regulator from the electric heating tube 4, thereby protecting the circuit and heating equipment.

[0061] In this embodiment, the number of electric heating tubes 4 is five, the number of inner and outer wall support rings 5 ​​is four, and the number of heat circulation holes 9 on the inner and outer wall support rings 5 ​​is thirty-five. All of these can be adjusted according to actual conditions, as long as the heating requirements of the smoked mash process are met. It should be noted that in this embodiment, three bell mouths 6 are provided on each reflector 7. The number of bell mouths 6 can be adjusted according to the actual length of the electric heating tube 4, as long as the electric heating tube 4 is ensured to be prevented from deformation and securely installed.

[0062] In this embodiment, the reflective plate 7 is fixedly connected to the production barrel body 1 via six connecting blocks 10. The number of connecting blocks 10 can be adjusted according to the actual length of the reflective plate 7 to minimize direct contact between the reflective plate 7 and the production barrel body 1, ensuring that the reflective plate 7 is firmly fixed. In this embodiment, the length of the electric heating tube 4 is greater than the length of the production barrel body 1, and can also be adjusted according to actual conditions, as long as the length of the electric heating tube 4 is greater than or equal to the length of the production barrel body 1 and meets the production process requirements.

[0063] In this embodiment, there are five temperature sensors, which are placed at the top of the production element, the middle of the production element, the bottom of the production element, the surface of the production barrel 1, and the heating layer 2. The number and placement of the temperature sensors can be adjusted according to the actual production situation as long as they can meet the temperature monitoring requirements of the production process.

Claims

1. A heating and temperature control device for a smoked mash machine, comprising a PID temperature controller, a power switch, a three-phase power regulator, and at least one temperature sensor for sensing the production temperature, characterized in that: Also included is a heating module; The heating module includes at least one electric heating tube and a heat dissipation fixing device matching the number of electric heating tubes; The electric heating tube is circumferentially fixed on the outside of the production barrel containing the production elements by a heat dissipation fixing device, and the length direction of the electric heating tube extends along the length direction of the production barrel; The power output of the three-phase power regulator is connected to one end of the electric heating tube in the heating module; The heating signal output terminal of the PID temperature controller is connected to the heating signal input terminal of the three-phase power regulator; The temperature feedback signal input terminal of the PID temperature controller is connected to the signal output terminal of the temperature sensor; The power supply ports of the three-phase power regulator and the PID temperature controller are connected to the power switch.

2. A heating and temperature control device for a smoked mash machine according to claim 1, characterized in that: The heat dissipation fixing device includes a reflective plate and at least one electric heating tube fixing device; The reflecting plate is arranged along the length direction of the electric heating tube, and includes a long strip bottom plate and two side plates integrally arranged with the bottom plate; the two side plates are respectively arranged on the long sides of the bottom plate along the length direction, and the angles formed between the two side plates and the bottom plate are both obtuse angles; The side of the bottom plate facing the production barrel body is fixedly connected to the production barrel body through at least two connecting blocks; The electric heating tube fixing device is fixed on the side of the bottom plate away from the production barrel body, and the electric heating tube is detachably arranged on the bottom plate of the reflecting plate through the electric heating tube fixing device.

3. A heating and temperature control device for a smoked mash machine according to claim 2, characterized in that: The electric heating tube fixing device is a bell mouth, and the diameter of the bell mouth gradually decreases from top to bottom with reference to the height of the production barrel; The center line of the bell mouth coincides with the center line of the electric heating tube, the bell mouth is fixedly connected to the bottom plate of the reflector, and the minimum diameter of the bell mouth matches the diameter of the electric heating tube.

4. A heating and temperature control device for a smoked mash machine according to claim 1, characterized in that: The heating module also includes an insulation layer whose shape matches the production barrel body; the insulation layer is covered on the outside of the production barrel body and the electric heating pipe through an insulation layer fixing bracket.

5. A heating and temperature control device for a smoked mash machine according to claim 4, characterized in that: The thermal insulation layer fixing bracket includes at least two thin-sheet inner and outer wall support rings that play a supporting role; The axes of the two inner and outer wall support rings are both coaxial with the production barrel body and are in contact with the production barrel body and the insulation layer respectively.

6. A heating and temperature control device for a smoked mash machine according to claim 5, characterized in that: Each of the inner and outer wall support rings is also provided with a heat flow hole for heat flow.

7. A heating and temperature control device for a smoked mash machine according to any one of claims 1 to 6, characterized in that: The length of the electric heating tube is greater than or equal to the length of the production barrel.

8. The heating and temperature control device for smoked mash machine according to claim 1, characterized in that: A contactor is provided between the three-phase power regulator and the heating module for cutting off the circuit to protect the equipment and the circuit.

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