Energy-saving, high-efficiency and multifunctional fermentation device

Abstract

The present invention belongs to the technical field of bacterial strain fermentation devices, and relates to an energy-saving, high-efficiency and multifunctional fermentation device, comprising an outer protective shell and a fermentation tank arranged in the outer protective shell, the top of the outer protective shell is detachably connected with a top cover, the top of the top cover is provided with a breathing valve and a feeding port, the feeding port is arranged corresponding to the tank port of the fermentation tank, and a cover plate assembly is arranged on the top of the feeding port, a water adding pipe and a circulating material interface are arranged on the side wall of the fermentation tank, a discharge pipe is arranged at the bottom of the fermentation tank, a discharge valve is arranged on the discharge pipe, and a water outlet pipe is also connected to the discharge pipe through a three-way joint, a gap is left between the outer protective shell and the fermentation tank, and an expansion premixing heating device, a circulation pump, a four-way joint and an electric three-way valve are arranged in the gap. The present invention has the advantages of compact structure, small footprint, good gas mixing effect, low gas consumption, and helps to reduce heating energy consumption, and can realize the anaerobic, aerobic and anaerobic and aerobic rapid switching fermentation functions of bacterial strains.

Description

Technical Field

[0001] The invention belongs to the technical field of bacterial strain fermentation devices, and in particular, relates to an energy-saving, high-efficiency and multifunctional fermentation device. Background Art

[0002] The existing bacterial strain fermentation device structure usually includes key components such as tank body, jacket, stirring system, heating and cooling system, etc. Among them, the tank body is usually made of stainless steel, has a certain volume, and is used to contain the fermentation medium and bacterial strains; the jacket surrounds the tank body and is used to control the temperature in the tank by heating or cooling the medium; the stirring system is responsible for mixing the fermentation medium to ensure the full dissolution of oxygen or other gases; the heating and cooling system maintains the appropriate fermentation temperature through the jacket or other built-in heat exchange devices.

[0003] Although the above devices can meet the fermentation needs to a certain extent, they also have some obvious disadvantages:

[0004] (1) The gas mixing effect is poor, the gas consumption is large, and the heating energy consumption is high.

[0005] (2) The device is large in size and occupies a large area.

[0006] (3) The functions are relatively simple, and it is often difficult to achieve anaerobic, aerobic, and anaerobic and aerobic rapid fermentation functions of bacteria on the same device.

[0007] Therefore, this field urgently needs to develop a new energy-saving, high-efficiency and multifunctional fermentation device. Summary of the invention

[0008] In order to solve the above technical problems, the present invention provides a multifunctional fermentation device which has a compact structure and can achieve energy-saving and efficient operation.

[0009] In order to achieve the above object, the present invention adopts the following technical solutions:

[0010] An energy-saving, efficient and multifunctional fermentation device comprises an outer protective shell and a fermentation tank arranged in the outer protective shell, the top of the outer protective shell is detachably connected to a top cover, the top of the top cover is provided with a breathing valve and a feeding port, the feeding port is arranged corresponding to the tank mouth of the fermentation tank, and a cover plate assembly is arranged on the top of the feeding port, a water adding pipe and a circulating material interface are arranged on the side wall of the fermentation tank, a discharge pipe is arranged at the bottom of the fermentation tank, a discharge valve is arranged on the discharge pipe, and a water outlet pipe is also connected to the discharge pipe through a three-way joint, a gap is left between the outer protective shell and the fermentation tank, and a capacity expansion premixing heating device, a circulation pump, a four-way joint and an electric three-way valve are arranged in the gap, the feed end of the circulation pump is connected to the discharge pipe, and the discharge end is connected to the four-way joint through a connecting pipe. The connecting pipe 1 is connected, and a feed check valve is arranged on the connecting pipe 1, the other three joints of the four-way joint are respectively connected with a ventilation pipe, a sampling pipe and a connecting pipe 2, an end of the ventilation pipe close to the four-way joint is provided with a ventilation solenoid valve and a ventilation check valve, an end of the connecting pipe 2 away from the four-way joint is connected with a valve port of the three-way valve, the other two valve ports of the three-way valve are respectively connected with a discharge pipe and a connecting pipe 3, an end of the connecting pipe 3 away from the three-way valve is connected with a feed end of a capacity expansion premixing heating device, the capacity expansion premixing heating device is used to expand, premix and heat the materials delivered by the circulation pump, and the discharge end of the capacity expansion premixing heating device is connected with the circulation material interface through a connecting pipe 4, and a temperature measuring element and an electronic level meter are arranged in the fermentation tank;

[0011] A water inlet, an air vent, a discharge port, a water outlet, a sampling port, an air intake regulating assembly, an inspection door, a main switch and a control cabinet are provided on the side wall of the outer protective shell. The water inlet is connected to the water supply pipe, and the water supply pipe is provided with a water supply electric valve. The air vent and the air intake regulating assembly are both connected to the air supply pipe, the discharge port is connected to the discharge pipe, the water outlet is connected to the water outlet pipe, and the water outlet is provided with a water outlet valve, the sampling port is connected to the sampling pipe, and the sampling port is provided with a sampling valve. The control cabinet is arranged above the inspection door and embedded in the interval. The inspection door is arranged corresponding to the installation positions of the expansion premix heating device and the circulating pump. The premix heating device, the ventilation solenoid valve, the temperature measuring element, the electronic level meter, the circulating pump, the electric three-way valve, the water supply electric valve and the air intake regulating assembly are electrically connected to the control cabinet respectively, and the control cabinet is electrically connected to the external power supply through the main switch.

[0012] Preferably, the cover plate assembly includes a clamping rod, a feeding pipe arranged at the top of the feeding port and a cover plate matching the pipe mouth of the feeding pipe, the feeding pipe is provided with a first hinge seat on the left side, and an L-shaped bracket is provided on the right side, a screw is hinged on the first hinge seat through a pin shaft 1, a sleeve threadedly connected to the screw is sleeved above the screw, a hemispherical knob is provided on the top of the sleeve, and a second hinge seat is provided on the top of the cover plate, the middle part of the clamping rod is hinged to the second hinge seat through a pin shaft 2, and the right end of the clamping rod is hinged to the top end of the L-shaped bracket through a pin shaft 3, the left end of the clamping rod is provided with a U-shaped groove matching the outer diameter of the sleeve, and the groove width of the U-shaped groove is smaller than the diameter of the hemispherical knob, when the sleeve is tightened by the hemispherical knob, the hemispherical knob is pressed on the U-shaped groove, and when the sleeve is loosened by the hemispherical knob, the hemispherical knob is pulled to the right to make the sleeve disengage from the U-shaped groove. This arrangement facilitates efficient opening and closing operations of the cover.

[0013] Preferably, the premixing heating device comprises a premixing cylinder and a heating cylinder coaxially arranged in the premixing cylinder, an electric heating element is arranged in the heating cylinder, the electric heating element is electrically connected to the control cabinet, a premixing chamber is arranged between the heating cylinder and the premixing cylinder, the cross-sectional area of ​​the premixing chamber is 2 to 5 times the cross-sectional area of ​​the connecting tube 3, and a spiral guide plate is arranged in the premixing chamber, and a water supply pipe is arranged at one end of the heating cylinder, the water supply pipe runs through the outside of the outer protective shell and is connected to the water supply device arranged outside the outer protective shell. This arrangement is conducive to achieving full and efficient mixing of gas and material, and facilitates efficient heating of material, thereby helping to improve the utilization rate of gas and achieve better energy-saving effect.

[0014] Preferably, the heating element is a resistance wire heating rod, and the temperature measuring element is a thermocouple thermometer, which is beneficial to the heating control of the material.

[0015] Preferably, the water replenishment device includes a water replenishment tank connected to the water replenishment pipe, the water replenishment tank is connected to the outer side wall of the outer protective shell, and a water level observation tube is provided on the top of the water replenishment tank, the water level observation tube is a transparent tube, and the top of the water level observation tube is open. When heating the material in the present application, the temperature of the hot water in the heating cylinder is usually maintained at 40°C ~ 65°C. At this temperature, the evaporation amount is very small, so the water consumption is very low. Therefore, by arranging an open water level observation tube on the top of the water replenishment tank, on the one hand, water replenishment is convenient, and on the other hand, the safety is higher, and there is basically no need to consider the pressure bearing capacity of the heating cylinder and the water replenishment pipe, which helps to reduce the manufacturing cost of the device.

[0016] Preferably, the air intake regulating assembly comprises a regulating valve, a pressure gauge and a flow meter connected to the ventilation pipe in sequence, the pressure gauge and the flow meter are electrically connected to the control cabinet respectively, and the vent is connected to an external air source, so as to timely regulate the ventilation pressure and flow as needed.

[0017] Preferably, the electric three-way valve is a manual-automatic electric three-way ball valve of model FVQ12, which is convenient for manual operation in debugging or circuit failure.

[0018] Preferably, the fermentation tank is a stainless steel fermentation tank, and an insulation layer is provided on the outer wall of the stainless steel fermentation tank, and the insulation layer is a polyurethane insulation layer.

[0019] Preferably, the top cover and the inspection door are respectively connected to the outer casing by bolts, and the components in the compartment can be inspected and maintained by opening the top cover or the inspection door.

[0020] Preferably, a PLC controller, a circulation pump start-stop control button, a discharging control button, a ventilation control knob and a material level control knob are provided on the cabinet door of the control cabinet, and the circulation pump start-stop control button, the discharging control button, the ventilation control knob and the material level control knob are electrically connected to the PLC controller respectively, and the circulation pump start-stop control button is electrically connected to the circulation pump, the discharging control button is electrically connected to the electric three-way valve, the ventilation control knob is electrically connected to the ventilation solenoid valve, and the material level control knob is electrically connected to the water adding electric valve. The connection mode and control method of the PLC controller in this application and other electrical components in this application all adopt the existing technology in this field, which will not be repeated here. Through the PLC controller, it is conducive to realizing automatic control of the device and facilitating visual monitoring of the operating parameters of the device.

[0021] The present invention also includes other devices or components that enable the energy-saving, efficient and multifunctional fermentation device to be used normally, which are all conventional technical means in the art. In addition, the devices or components not limited in the present invention all adopt conventional technical means in the art.

[0022] The working principle of the present invention is that when in use, a suitable amount of water can be added to the fermenter through the water inlet first, and then the corresponding bacterial culture medium can be added to the fermenter through the feeding port. Feeding can also be done first, and then water can be added. While adding water and feeding, the electric three-way valve is controlled to connect the connecting pipe 2 and the connecting pipe 3, and the discharge valve is opened, and the circulation pump and the expansion premix heating device are started for heating. When the temperature of the fermenter reaches the set fermentation temperature, the heating tank stops heating, and the bacterial culture package is put into the fermenter to start fermentation. During the fermentation process, according to the needs of the fermentation process, the ventilation solenoid valve and the regulating component are used to control the ventilation volume and ventilation time into the fermenter.

[0023] Compared with the prior art, this application has the following beneficial effects:

[0024] (1) The device has a compact structure and occupies a small area.

[0025] (2) The device has good gas mixing effect, low gas consumption, and helps reduce heating energy consumption.

[0026] (3) The device can realize the anaerobic, aerobic and anaerobic-aerobic rapid switching fermentation functions of the bacteria. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0028] Figure 1 It is a schematic diagram of the overall structure of the present invention in an embodiment.

[0029] Figure 2 It is a schematic diagram of the local structure inside the outer protective shell in the embodiment.

[0030] Figure 3 Schematic diagram of the enlarged structure of the cover plate assembly in the embodiment.

[0031] Figure 4 yes Figure 1 Schematic diagram of the enlarged structure of part A in FIG.

[0032] In the figure, 1-outer casing, 2-fermentation tank, 3-top cover, 4-breathing valve, 5-water adding pipe, 6-circulating material interface, 7-discharging pipe, 8-three-way joint, 9-water outlet pipe, 10-circulating pump, 11-four-way joint, 12-electric three-way valve, 13-connecting pipe 1, 14-feeding check valve, 15-venting pipe, 16-sampling pipe, 17-connecting pipe 2, 18-venting solenoid valve, 19-venting check valve, 20-discharging pipe, 21-connecting pipe 3, 22-connecting pipe 4, 23-water adding port, 24-venting port, 25-discharging port, 26-water outlet, 27-sampling port, 28-inspection door, 29-control cabinet, 30- Water adding electric valve, 31-clamping rod, 32-feeding pipe, 33-cover plate, 34-first hinged seat, 35-L-shaped bracket, 36-screw, 37-sleeve, 38-hemispherical knob, 39-second hinged seat, 40-premixing cylinder, 41-heating cylinder, 42-electric heating element, 43-premixing chamber, 44-spiral guide plate, 45-water supply pipe, 46-water supply tank, 47-water level observation tube, 48-regulating valve, 49-pressure gauge, 50-flow meter, 51-PLC controller, 52-circulation pump start and stop control button, 53-discharge control button, 54-ventilation control knob, 55-material level control knob, 56-main switch. DETAILED DESCRIPTION

[0033] The present invention is described clearly below in conjunction with the drawings and specific embodiments in the embodiments of the present invention. The description herein is only used to explain the present invention, but is not intended to limit the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work, any modifications, equivalent substitutions, improvements, etc., should be included in the protection scope of the present invention.

[0034] Example

[0035] like Figures 1 to 4 As shown, the present invention provides an energy-saving, high-efficiency and multifunctional fermentation device, comprising an outer protective shell 1 and a fermentation tank 2 arranged in the outer protective shell, the top of the outer protective shell is detachably connected with a top cover 3 by bolts, the top of the top cover is provided with a breathing valve 4 and a feeding port, the feeding port is arranged corresponding to the tank mouth of the fermentation tank and the top of the feeding port is provided with a cover plate assembly, a water adding pipe 5 and a circulating material interface 6 are arranged on the side wall of the fermentation tank, a discharge pipe 7 is arranged at the bottom of the fermentation tank, a discharge valve is arranged on the discharge pipe, and a water outlet pipe 9 is also connected to the discharge pipe through a three-way joint 8, a gap is left between the outer protective shell and the fermentation tank, and a capacity expansion premixing heating device, a circulation pump 10, a four-way joint 11 and an electric three-way valve 12 are arranged in the gap, the feed end of the circulation pump is connected with the discharge pipe, and the discharge end is connected with the four-way joint through a connecting pipe 13. The four-way joint is connected, and a feed check valve 14 is provided on the connecting pipe one, the other three joints of the four-way joint are respectively connected with a vent pipe 15, a sampling pipe 16 and a connecting pipe two 17, a vent solenoid valve 18 and a vent check valve 19 are provided at one end of the vent pipe close to the four-way joint, an end of the connecting pipe two away from the four-way joint is connected with a valve port of the three-way valve, the other two valve ports of the three-way valve are respectively connected with a discharge pipe 20 and a connecting pipe three 21, an end of the connecting pipe three away from the three-way valve is connected with the feed end of the expansion premixing heating device, the expansion premixing heating device is used to expand, premix and heat the materials delivered by the circulation pump, and the discharge end of the expansion premixing heating device is connected with the circulation material interface through a connecting pipe four 22, and a temperature measuring element (not shown in the figure) and an electronic level meter (not shown in the figure) are provided in the fermentation tank;

[0036] The side wall of the outer shell is provided with a water inlet 23, a vent 24, a discharge port 25, a water outlet 26, a sampling port 27, an air inlet adjustment component, an inspection door 28, a main switch 53 and a control cabinet 29. The water inlet is connected to the water inlet pipe, and the water inlet pipe is provided with a water inlet electric valve 30. The vent and the air inlet adjustment component are both connected to the air inlet pipe, the discharge port is connected to the discharge pipe, the water outlet is connected to the water outlet pipe, and the water outlet is provided with a water outlet valve. The sampling port is connected with the sampling tube, and a sampling valve is provided on the sampling port. The control cabinet is arranged above the inspection door and embedded in the interval. The inspection door is arranged corresponding to the installation position of the expansion premix heating device and the circulation pump. The premix heating device, ventilation solenoid valve, temperature measuring element, electronic level meter, circulation pump, electric three-way valve, water adding electric valve and air intake adjustment assembly are electrically connected to the control cabinet respectively, and the control cabinet is electrically connected to an external power supply (not shown in the figure) through a main switch.

[0037] In this embodiment, the circulating material interface is arranged along the tangential direction of the fermentation tank, which is conducive to improving the mixing efficiency of the materials. The cover plate assembly includes a clamp rod 31, a feeding pipe 32 arranged at the top of the feeding port, and a cover plate 33 matching the pipe mouth of the feeding pipe. The left side of the feeding pipe is provided with a first hinge seat 34, and the right side is provided with an L-shaped bracket 35. A screw rod 36 is hinged on the first hinge seat through a pin shaft. A sleeve 37 connected to the screw thread is sleeved above the screw. A hemispherical knob 38 is provided on the top of the sleeve. A second hinge seat 39 is provided on the top of the cover plate. The middle part of the clamp rod is hinged to the second hinge seat through the second pin, and the right end of the clamp rod is hinged to the top end of the L-shaped bracket through the third pin. The left end of the clamp rod is provided with a U-shaped clamping groove matching the outer diameter of the sleeve, and the width of the U-shaped clamping groove is smaller than the diameter of the hemispherical knob. When the sleeve is tightened by the hemispherical knob, the hemispherical knob is pressed against the U-shaped clamping groove. When the sleeve is loosened by the hemispherical knob, the hemispherical knob is pulled to the right to make the sleeve disengage from the U-shaped clamping groove. This arrangement facilitates the efficient opening and closing operation of the cover.

[0038] Specifically, the premixing heating device includes a premixing cylinder 40 and a heating cylinder 41 coaxially arranged in the premixing cylinder, an electric heating element 42 is arranged in the heating cylinder, and the electric heating element is electrically connected to the control cabinet, a premixing chamber 43 is arranged between the heating cylinder and the premixing cylinder, the cross-sectional area of ​​the premixing chamber is 3 times the cross-sectional area of ​​the connecting pipe 3, and a spiral guide plate 44 is arranged in the premixing chamber, and a water supply pipe 45 is arranged at one end of the heating cylinder, and the water supply pipe runs through the outside of the outer protective shell and is connected to the water supply device arranged outside the outer protective shell. This arrangement is conducive to achieving full and efficient mixing of gas and material, and is convenient for efficient heating of material, thereby helping to improve the utilization rate of gas and achieve better energy-saving effect.

[0039] More specifically, the heating element adopts a resistance wire heating rod, and the temperature measuring element adopts a thermocouple thermometer, which is conducive to the heating control of the material. The water replenishment device includes a water replenishment tank 46 connected to the water replenishment pipe, the water replenishment tank is connected to the outer wall of the outer shell, and a water level observation tube 47 is provided on the top of the water replenishment tank. The water level observation tube is a transparent tube, and the top of the water level observation tube is open. When the material is heated, the temperature of the hot water in the heating cylinder is usually maintained at 40℃~65℃. At this temperature, the evaporation amount is very small, so the water consumption is very low. Therefore, by arranging an open water level observation tube on the top of the water replenishment tank, on the one hand, it is convenient to replenish water, and on the other hand, it is safer, and basically there is no need to consider the pressure bearing capacity of the heating cylinder and the water replenishment pipe, which helps to reduce the manufacturing cost of the device.

[0040] In this embodiment, the air intake regulating assembly includes a regulating valve 48, a pressure gauge 49 and a flow meter 50 which are sequentially connected to the ventilation pipe. The pressure gauge and the flow meter are electrically connected to the control cabinet respectively, and the vent is connected to an external air source (not shown in the figure). It is used to timely adjust the ventilation pressure and flow as needed. The electric three-way valve adopts a manual-automatic electric three-way ball valve, model FVQ12, which is convenient for manual operation in case of debugging or circuit failure. The fermentation tank is a stainless steel fermentation tank, and an insulation layer (not shown in the figure) is provided on the outer wall of the stainless steel fermentation tank, and the insulation layer adopts a polyurethane insulation layer. The top cover and the inspection door are respectively connected to the outer casing by bolts. The top cover and the inspection door are opened to inspect and maintain the components in the interval.

[0041] More specifically, a PLC controller 51, a circulation pump start / stop control button 52, a discharge control button 53, a ventilation control knob 54 and a material level control knob 55 are provided on the cabinet door of the control cabinet. The circulation pump start / stop control button, the discharge control button, the ventilation control knob and the material level control knob are electrically connected to the PLC controller respectively, and the circulation pump start / stop control button is electrically connected to the circulation pump, the discharge control button is electrically connected to the electric three-way valve, the ventilation control knob is electrically connected to the ventilation solenoid valve, and the material level control knob is electrically connected to the water adding electric valve. The connection mode and control method of the PLC controller in this application and other electrical components in this application all adopt the prior art in this field, which will not be repeated here. Through the PLC controller, it is conducive to realizing automatic control of the device and facilitating visual monitoring of the operating parameters of the device.

[0042] The working principle of the present invention is that when in use, a suitable amount of water can be added to the fermenter through the water inlet first, and then the corresponding bacterial culture medium can be added to the fermenter through the feeding port, or the feeding can be firstly added, and then water can be added. While adding water and feeding, the electric three-way valve is controlled to connect the connecting pipe 2 and the connecting pipe 3, and the discharge valve is opened, and the circulation pump and the expansion premix heating device are started for heating. When the temperature of the fermenter reaches the required temperature for the fermentation, the heating tank stops heating, and the bacterial culture bag is put into the fermenter to start fermentation. During the fermentation process, according to the needs of the fermentation process, the ventilation solenoid valve and the regulating component are used to control the ventilation volume and ventilation time into the fermenter. Compared with conventional fermentation devices, the gas consumption of the present application can be saved by more than 80% during aerobic fermentation.

[0043] The embodiments of the present invention have been described above, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments.

Claims

1. An energy-saving, efficient and multifunctional fermentation device, comprising an outer protective shell and a fermentation tank arranged in the outer protective shell, wherein the top of the outer protective shell is detachably connected to a top cover, characterized in that: A breathing valve and a feeding port are provided on the top of the top cover, the feeding port is arranged corresponding to the tank port of the fermenter and a cover plate assembly is provided on the top of the feeding port, a water adding pipe and a circulating material interface are provided on the side wall of the fermenter, a discharge pipe is provided at the bottom of the fermenter, a discharge valve is provided on the discharge pipe, and a water outlet pipe is connected to the discharge pipe through a three-way joint, a gap is left between the outer casing and the fermenter, an expansion premixing heating device, a circulation pump, a four-way joint and an electric three-way valve are provided in the gap, the feed end of the circulation pump is connected to the discharge pipe, the discharge end is connected to the four-way joint through a connecting pipe 1, and a feed check valve is provided on the connecting pipe 1, and the four-way joint The other three joints are respectively connected to a vent pipe, a sampling pipe and a connecting pipe 2; a vent pipe is provided with a vent solenoid valve and a vent check valve at one end close to the four-way joint; an end of the connecting pipe 2 away from the four-way joint is connected to a valve port of the three-way valve; the other two valve ports of the three-way valve are respectively connected to a discharge pipe and a connecting pipe 3; an end of the connecting pipe 3 away from the three-way valve is connected to a feed end of a capacity expansion premixing heating device; the capacity expansion premixing heating device is used to expand, premix and heat the material delivered by the circulating pump; and the discharge end of the capacity expansion premixing heating device is connected to the circulating material interface through a connecting pipe 4; a temperature measuring element and an electronic level meter are provided in the fermenter; A water inlet, an air vent, a discharge port, a water outlet, a sampling port, an air intake regulating assembly, an inspection door, a main switch and a control cabinet are provided on the side wall of the outer protective shell. The water inlet is connected to the water supply pipe, and the water supply pipe is provided with a water supply electric valve. The air vent and the air intake regulating assembly are both connected to the air supply pipe, the discharge port is connected to the discharge pipe, the water outlet is connected to the water outlet pipe, and the water outlet is provided with a water outlet valve, the sampling port is connected to the sampling pipe, and the sampling port is provided with a sampling valve. The control cabinet is arranged above the inspection door and embedded in the interval. The inspection door is arranged corresponding to the installation positions of the expansion premix heating device and the circulating pump. The premix heating device, the ventilation solenoid valve, the temperature measuring element, the electronic level meter, the circulating pump, the electric three-way valve, the water supply electric valve and the air intake regulating assembly are electrically connected to the control cabinet respectively, and the control cabinet is electrically connected to the external power supply through the main switch.

2. The energy-saving, high-efficiency and multifunctional fermentation device according to claim 1, characterized in that: The cover plate assembly includes a clamping rod, a feeding pipe arranged at the top of the feeding port and a cover plate matching the pipe mouth of the feeding pipe, a first hinge seat is provided on the left side of the feeding pipe, and an L-shaped bracket is provided on the right side, a screw is hinged on the first hinge seat through a pin shaft 1, a sleeve threadedly connected to the screw is sleeved above the screw, a hemispherical knob is provided on the top of the sleeve, and a second hinge seat is provided on the top of the cover plate, the middle part of the clamping rod is hinged to the second hinge seat through a pin shaft 2, and the right end of the clamping rod is hinged to the top end of the L-shaped bracket through a pin shaft 3, the left end of the clamping rod is provided with a U-shaped groove matching the outer diameter of the sleeve, and the groove width of the U-shaped groove is smaller than the diameter of the hemispherical knob, when the sleeve is tightened by the hemispherical knob, the hemispherical knob is pressed on the U-shaped groove, and when the sleeve is loosened by the hemispherical knob, the hemispherical knob is pulled to the right to make the sleeve disengage from the U-shaped groove.

3. The energy-saving, high-efficiency and multifunctional fermentation device according to claim 1, characterized in that: The premixing heating device comprises a premixing cylinder and a heating cylinder coaxially arranged in the premixing cylinder, an electric heating element is arranged in the heating cylinder, the electric heating element is electrically connected to the control cabinet, a premixing chamber is arranged between the heating cylinder and the premixing cylinder, the cross-sectional area of ​​the premixing chamber is 2 to 5 times the cross-sectional area of ​​the connecting tube three, and a spiral guide plate is arranged in the premixing chamber, a water supply pipe is arranged at one end of the heating cylinder, the water supply pipe passes through the outside of the outer protective shell and is connected with the water supply device arranged on the outside of the outer protective shell.

4. The energy-saving, high-efficiency and multifunctional fermentation device according to claim 3 is characterized in that: the heating element adopts a resistance wire heating rod, and the temperature measuring element adopts a thermocouple thermometer.

5. The energy-saving, high-efficiency and multifunctional fermentation device according to claim 3, characterized in that: The water replenishing device includes a water replenishing tank connected to the water replenishing pipe, the water replenishing tank is connected to the outer side wall of the outer protective shell, and a water level observation tube is provided on the top of the water replenishing tank. The water level observation tube is a transparent tube, and the top of the water level observation tube is open.

6. The energy-saving, high-efficiency and multifunctional fermentation device according to claim 1, characterized in that: The air intake regulating assembly comprises a regulating valve, a pressure gauge and a flow meter which are sequentially connected to the ventilation pipe, the pressure gauge and the flow meter are electrically connected to the control cabinet respectively, and the ventilation port is connected to an external air source.

7. The energy-saving, high-efficiency and multifunctional fermentation device according to claim 1, characterized in that: The electric three-way valve adopts a manual-automatic integrated electric three-way ball valve, model FVQ12.

8. The energy-saving, high-efficiency and multifunctional fermentation device according to claim 1, characterized in that: The fermentation tank is a stainless steel fermentation tank, and a heat preservation layer is arranged on the outer wall of the stainless steel fermentation tank, and the heat preservation layer is a polyurethane heat preservation layer.

9. The energy-saving, high-efficiency and multifunctional fermentation device according to claim 1, characterized in that: The top cover and the inspection door are respectively connected to the outer casing by bolts.

10. The energy-saving, high-efficiency and multifunctional fermentation device according to claim 1, characterized in that: A PLC controller, a circulation pump start and stop control button, a discharge control button, a ventilation control knob and a material level control knob are provided on the cabinet door of the control cabinet. The circulation pump start and stop control button, the discharge control button, the ventilation control knob and the material level control knob are electrically connected to the PLC controller respectively, and the circulation pump start and stop control button is electrically connected to the circulation pump, the discharge control button is electrically connected to the electric three-way valve, the ventilation control knob is electrically connected to the ventilation solenoid valve, and the material level control knob is electrically connected to the water adding electric valve.

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