Integrated control system for sterilization, cooking and drying

Abstract

The present application relates to the technical field of fruit and vegetable processing control systems, and specifically discloses an integrated control system for sterilizing, boiling and drying, including a controller, the input end of which is electrically connected to a temperature sensor, a pressure sensor and a humidity sensor; the output end of the controller is electrically connected to a dehumidification fan, a circulating fan, a cold air door, and a steam unit of an air energy heat pump; the temperature sensor, the pressure sensor and the humidity sensor are electrically connected to a display screen through an A / D conversion module; the temperature sensor, the pressure sensor and the humidity sensor are all arranged inside a drying box; the controller and the display screen are arranged outside the drying box. The purpose of this patent is to solve the problem of energy waste caused by using a separate device for sterilizing, boiling and drying.

Description

Technical Field

[0001] The invention relates to the technical field of fruit and vegetable processing control systems, and in particular to an integrated control system for killing, sterilizing, steaming, and drying. Background Art

[0002] my country is a large agricultural country with a huge output of fruits and vegetables. As fresh fruits and vegetables have a short shelf life and are easily perishable, most of them are sold locally at low prices. In order to protect the interests of farmers and expand the market, fresh fruits and vegetables must be processed for preservation. As a high value-added fruit and vegetable variety, dehydrated fruits and vegetables account for an increasing proportion in domestic and foreign market transactions.

[0003] In the processing of fresh fruits and vegetables, killing green, sterilization, cooking and drying are four important processes. The main purpose of killing green is to destroy the activity of oxidase in fruits and vegetables through high temperature to prevent discoloration during drying. Sterilization mainly uses high-temperature steam to disinfect bacteria and microorganisms on the surface of fruits and vegetables. Cooking uses steam as a heat source to quickly steam raw fruits and vegetables to retain the nutrients inside the fruits and vegetables. Drying refers to the process of passing hot air to evaporate and take away the moisture in the material, which is convenient for the preservation of fruits and vegetables.

[0004] Traditional drying uses hot air drying technology based on drying boxes. Hot air drying technology is the most widely used drying technology due to its advantages such as low price and easy operation. However, hot air drying has many disadvantages such as low energy utilization, slow drying rate, and large loss of water-soluble nutrients.

[0005] In addition, using a separate device for withering, sterilization, cooking and drying can easily lead to a large number of devices and high equipment investment costs. In addition, fruits and vegetables need to be transferred between various devices at different processing stages, which is inconvenient to operate and causes waste of energy. Summary of the invention

[0006] In view of the shortcomings of the prior art, the technical problem solved by the present invention is to provide an integrated control system for killing green leaves, sterilizing, steaming and drying, so as to solve the problem of using separate equipment for killing green leaves, sterilizing, steaming and drying, resulting in energy waste.

[0007] In order to solve the above problems, the technical solution adopted by the present invention is: an integrated control system for sterilizing, steaming and drying, including a controller, the input ends of the controller are electrically connected to a temperature sensor, a pressure sensor and a humidity sensor; the output ends of the controller are electrically connected to a dehumidification fan, a circulating fan, a cold air door, and a steam unit of an air-energy heat pump; the temperature sensor, pressure sensor and humidity sensor are electrically connected to a display screen through an A / D conversion module; the temperature sensor, pressure sensor and humidity sensor are all arranged inside a drying box; the controller and the display screen are arranged outside the drying box.

[0008] The technical principle of this technical solution is:

[0009] 1. Set up a temperature sensor to monitor the temperature inside the drying box in real time;

[0010] 2. Set up a pressure sensor to monitor the pressure inside the drying box in real time;

[0011] 3. Set up a humidity sensor to monitor the humidity inside the drying box in real time;

[0012] 4. Set up a controller, and the temperature sensor, pressure sensor and humidity sensor control the operation of the dehumidification fan, circulating fan, cold air door, and steam unit of the air energy heat pump through the controller; set up the steam unit of the air energy heat pump to provide steam; set up an A / D conversion module and a display screen, and the A / D conversion module converts the electrical signals of the temperature sensor, pressure sensor and humidity sensor into digital signals and displays them on the display screen.

[0013] After the temperature, pressure and humidity inside the drying box are set by the controller, the controller controls the automatic operation of the dehumidification fan, circulation fan, cold air door, and steam unit of the air energy heat pump to realize the automatic control of the system. After placing the fruits and vegetables in the drying box, the controller sets the temperature, humidity and pressure at different stages inside the drying box to realize the four functions of killing, sterilizing, steaming and drying.

[0014] The beneficial effect of this solution is as follows: compared with the existing fruit and vegetable processing method, in which each of the withering, sterilization, cooking and drying uses a separate device, resulting in energy waste; while in this application solution, after the fruits and vegetables are placed inside the drying box, the temperature, humidity and pressure at different stages inside the drying box are set by a controller to achieve the four functions of withering, sterilization, cooking and drying, and all are automatically controlled by the system, saving energy.

[0015] Furthermore, the display screen is a touch liquid crystal display screen, and the touch liquid crystal display screen is electrically connected to the controller.

[0016] The temperature, pressure and humidity parameters inside the drying box can be set through the LCD display.

[0017] Furthermore, the steam unit of the air energy heat pump includes a steam pressure gauge and a steam flow meter, and the controller is electrically connected to the steam pressure gauge and the steam flow meter at the same time.

[0018] The controller controls the pressure and flow of the steam inside the drying box by controlling the pressure value of the steam pressure gauge and the flow rate of the steam flow meter.

[0019] Furthermore, it also includes a data transmission module and a storage module. The temperature sensor, pressure sensor, humidity sensor, dehumidification fan, circulation fan, cold air door, and steam unit of the air energy heat pump are all electrically connected to the data storage module through the data transmission module.

[0020] The operating data of the temperature sensor, pressure sensor, humidity sensor, dehumidification fan, circulation fan, cold air door, and steam unit of the air energy heat pump are transmitted to the data storage module through the data transmission module for storage.

[0021] Furthermore, it also includes a data monitoring module and an alarm module. The circulating fan is electrically connected to the data monitoring module, and the data monitoring module is electrically connected to the alarm module through a controller. When the data monitoring module detects that the current and voltage of the circulating fan exceed the standard, the data monitoring module controls the alarm module to issue an alarm through the controller.

[0022] The data monitoring module monitors the current and voltage of the circulation fan. When the data monitoring module detects that the current and voltage of the circulation fan exceed the standard, the data monitoring module controls the alarm module to issue an alarm through a controller.

[0023] Furthermore, the alarm module is a sound alarm, which reminds the operator to handle the problem in time. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the control system structure.

[0025] Figure 2 This is the overall structure diagram of the drying box. DETAILED DESCRIPTION

[0026] The following is further described in detail through specific implementation methods:

[0027] The figure marks in the drawings of the specification include: drying box 10, feeding valve 11, protrusion 1, fixed block 20, water absorption layer 21, hard layer 22, protective wall 23, dual output motor 30, rotating rod 31, cam 32, crank 33, first connecting rod 34, second connecting rod 35, slider 36, slide groove 37, cylinder body 40, piston 41, piston rod 42, one-way inlet valve 43, one-way outlet valve 44, sponge 45, spring 46, air storage box 50, first automatic valve 51, venturi tube 60, intake pipe 61, exhaust pipe 62, suction pipe 63, second automatic valve 64.

[0028] Example 1

[0029] Embodiment 1 is basically as attached Figure 1 As shown:

[0030] The integrated control system for sterilizing, steaming and drying includes controllers, such as Figure 1 As shown, the input end of the controller is electrically connected to a temperature sensor, a pressure sensor and a humidity sensor respectively; the output end of the controller is electrically connected to a dehumidification fan, a circulating fan, a cold air door, and a steam unit of an air-energy heat pump respectively; the steam unit of the air-energy heat pump includes a steam pressure gauge and a steam flow meter, and the controller is electrically connected to the steam pressure gauge and the steam flow meter at the same time; the controller controls the pressure and flow of the steam inside the drying box 10 by controlling the pressure value of the steam pressure gauge and the flow of the steam flow meter; the temperature sensor, the pressure sensor and the humidity sensor are electrically connected to a display screen through an A / D conversion module, and the display screen is a touch liquid crystal display screen, and the touch liquid crystal display screen is electrically connected to the controller; the temperature sensor, the pressure sensor and the humidity sensor are all arranged inside the drying box 10; the controller and the display screen are arranged outside the drying box 10. It also includes a data transmission module and a storage module, and the temperature sensor, the pressure sensor, the humidity sensor, the dehumidification fan, the circulating fan, the cold air door, and the steam unit of the air-energy heat pump are all electrically connected to the data storage module through the data transmission module. It also includes a data monitoring module and an alarm module. The circulating fan is electrically connected to the data monitoring module. The data monitoring module is electrically connected to the alarm module through a controller. When the data monitoring module detects that the current and voltage of the circulating fan exceed the standard, the data monitoring module controls the alarm module through the controller to sound an alarm. The alarm module is a sound alarm. The sound alarm reminds the operator to handle it in time.

[0031] A temperature sensor is provided to monitor the temperature inside the drying box 10 in real time; a pressure sensor is provided to monitor the pressure inside the drying box 10 in real time; a humidity sensor is provided to monitor the humidity inside the drying box 10 in real time; a controller is provided, and the temperature sensor, pressure sensor and humidity sensor control the operation of the dehumidification fan, the circulation fan, the cold air door and the steam unit of the air energy heat pump through the controller; the steam unit of the air energy heat pump is provided to provide steam; an A / D conversion module and a display screen are provided, and the A / D conversion module converts the electrical signals of the temperature sensor, the pressure sensor and the humidity sensor into digital signals and displays them on the display screen. The parameters of the temperature, pressure and humidity inside the drying box 10 are set through the LCD screen. The operating data of the temperature sensor, the pressure sensor, the humidity sensor, the dehumidification fan, the circulation fan, the cold air door and the steam unit of the air energy heat pump are transmitted to the data storage module through the data transmission module for storage. The data monitoring module monitors the current and voltage of the circulation fan. When the data monitoring module detects that the current and voltage of the circulation fan exceed the standard, the data monitoring module controls the alarm module through the controller to send out an alarm.

[0032] After the temperature, pressure and humidity inside the drying box 10 are set by the controller, the controller controls the automatic operation of the dehumidification fan, the circulation fan, the cold air door, and the steam unit of the air energy heat pump to realize the automatic control of the system. After placing the fruits and vegetables in the drying box 10, the temperature, humidity and pressure at different stages inside the drying box 10 are set by the controller to realize the four functions of killing, sterilizing, steaming and drying.

[0033] Example 2

[0034] The difference between Example 2 and Example 1 is that: Figure 2 As shown, a feeding valve 11 is arranged on the top of the drying box 10, and the feeding valve 11 is an automatic valve. The feeding valve 11 is coaxially arranged with the drying box 10, and a fixed block 20 with a diamond-shaped cross-section is fixed on the inner upper part of the drying box 10, and the fixed block 20 is coaxially arranged with the drying box 10. A fixed column with an axis arranged in the vertical direction is fixed at the lower end center of the fixed block 20, and a sieve plate arranged in the horizontal direction is arranged below the fixed column. The sieve plate is in the shape of a rectangular plate, and the sieve plate includes a hard layer 22 at the bottom and a water-absorbing layer 21 at the top. In this embodiment, the hard layer 22 is a high-temperature resistant plastic, and the water-absorbing layer 21 is a non-woven fabric. The sieve plate is provided with through holes connecting the upper and lower sides of the sieve plate, and the number of through holes is set to 150 and is evenly distributed on the sieve plate. The sieve plate is coaxially arranged with the drying box 10, and the lower end of the fixed column is connected to the sieve plate. The central hinge of the sieve plate is fixed with a "bowl"-shaped protective wall 23 around the sieve plate; a dual-output motor 30 is fixed to the part below the sieve plate inside the drying box 10, and the dual-output motor 30 is electrically connected to a motor switch, which is fixed to the outer wall of the drying box 10. The output shafts of the dual-output motor 30 are arranged in the horizontal direction, and a rotating rod 31 arranged in the horizontal direction is fixed to each of the two output shafts of the dual-output motor 30. A cam 32 is fixedly sleeved on each of the two rotating rods 31. When the end of one of the cams 32 closest to the rotating rod 31 is vertically facing upward, the end of the other cam 32 closest to the other rotating rod 31 is vertically facing downward, and the upper ends of the two cams 32 are both in contact with the lower end of the sieve plate; the two cams 32 are symmetrically distributed about the axis of the drying box 10; Figure 2As shown, a cylinder 40 is fixed to the right inner bottom of the drying box 10, and a piston 41 is connected to the internal sliding seal of the cylinder 40. A piston rod 42 arranged in the vertical direction is fixed to the upper end of the piston 41, and the upper end of the piston rod 42 fits the contour of the cam 32. A spring 46 is arranged inside the cylinder 40, one end of the spring 46 is fixed to the bottom of the cylinder 40, and the other end of the spring 46 is fixed to the piston 41. A one-way inlet valve 43 is arranged at the right bottom of the cylinder 40, a one-way outlet valve 44 is arranged at the left bottom of the cylinder 40, and a sponge 45 is arranged at the inlet end of the one-way inlet valve 43. The sponge 45 in this embodiment is a high temperature resistant sponge 45, a one-way outlet valve 44 is arranged at the left bottom of the cylinder 40, and a through hole is arranged at the right top of the cylinder 40; the right end of the rotating rod 31 on the right side rotates A crank 33 is connected, and the crank 33 is fixed inside the drying box 10. The right end of the rotating rod 31 on the right side is fixedly connected to a first connecting rod 34, and the first connecting rod 34 is hinged with a slider 36 through a second connecting rod 35. The crank 33, the first connecting rod 34, the second connecting rod 35 and the slider 36 constitute a crank slider mechanism; the slider 36 is in the shape of a rectangular parallelepiped, and a strip protrusion 1 arranged in the horizontal direction is fixed to the right inner bottom of the drying box 10. The cross section of the strip protrusion 1 is T-shaped, and a T-shaped groove 37 matching the strip protrusion 1 is provided at the lower part of the slider 36. The two ends of the T-shaped groove 37 pass through the left and right ends of the slider 36 to form a through groove. The T-shaped groove 37 cooperates with the T-shaped protrusion 1 to enable the slider 36 to slide only left and right; the slider 36 can squeeze the sponge 45 during the left and right sliding process; Figure 2 As shown, the number of cylinder bodies 40 is set to two and they are symmetrically distributed about the axis of the drying box 10; an air storage box 50 is fixed to the bottom of the drying box 10 between the two cylinder bodies 40, and two one-way outlet valves 44 are both connected to the inside of the air storage box 50. A venturi tube 60 is fixed to the upper end of the air storage box 50, and the axis of the venturi tube 60 is arranged in the horizontal direction. The outlet end of the air storage box 50 is connected to the inlet end of the venturi tube 60 through an air inlet pipe 61, and the interior of the air inlet pipe 61 is provided with a first automatic valve 51. The outlet end of the venturi tube 60 is connected to the inlet end of the venturi tube 60 through an exhaust pipe 62. The exhaust pipe 62 is connected to the outside world, and a second automatic valve 64 is arranged inside the exhaust pipe 62. The first automatic valve 51 and the second automatic valve 64 are electrically connected to the same automatic valve switch, and the automatic valve switch is fixed on the outer wall of the drying box 10. When the automatic valve switch is pressed, the first automatic valve 51 and the second automatic valve 64 are opened at the same time. When the automatic valve switch is pressed again, the first automatic valve 51 and the second automatic valve 64 are closed at the same time. The throat of the venturi tube 60 is connected to the inner bottom of the drying box 10 through the suction pipe 63, and the lower end of the suction pipe 63 is 0.5 cm away from the inner bottom of the drying box 10.

[0035] Open the feeding valve 11, pour the washed fruits and vegetables to be processed into the drying box 10, and close the feeding valve 11; the fruits and vegetables slide onto the sieve plate along the upper left and upper right parts of the fixed block 20, press the motor switch, the motor drives the rotating rod 31 to rotate, the rotating rod 31 drives the cam 32 to rotate, and the two cams 32 cooperate to drive the sieve plate to swing left and right and up and down. When the sieve plate tilts to the lower left, all the fruits and vegetables on the sieve plate slide to the left part of the sieve plate, and the right part of the sieve plate gradually approaches the lower right end of the fixed block 20 until it fits. After the right part of the plate is fitted with the right part of the fixing block 20, the sieve plate continues to rotate, and the fixing block 20 squeezes out the water in the non-woven fabric layer on the right part of the sieve plate, and the squeezed water falls to the bottom of the drying box 10 along the through holes on the sieve plate; similarly, the non-woven fabric on the left part of the sieve plate can be squeezed; the fruits and vegetables roll left and right on the sieve plate to make the fruits and vegetables fully contact with the non-woven fabric, and intermittently and alternately squeeze the non-woven fabric on the left and right parts of the sieve plate, so that the non-woven fabric layer can continuously absorb moisture on the fruits and vegetables, thereby accelerating the subsequent processing rate.

[0036] When the moisture on the surface of the fruits and vegetables is completely absorbed, the drying box 10 is heated by the steam unit of the air energy heat pump to carry out the processes of withering, steaming, drying and sterilization.

[0037] In the process of left-right vibration of the sieve plate and extrusion of the non-woven fabric, when the end of the cam 32 farthest from the rotating rod 31 moves downward, the cam 32 drives the piston rod 42 and the piston 41 to move downward, the spring 46 is squeezed, a positive pressure is formed inside the cylinder 40, the one-way inlet valve 43 is closed, the one-way outlet valve 44 is opened, and the cylinder 40 discharges gas; when the end of the cam 32 closest to the rotating rod 31 moves downward, the spring 46 drives the piston rod 42 and the piston 41 to move upward and always fit the contour of the cam 32, a negative pressure is formed inside the cylinder 40, the one-way inlet valve 43 is opened, the one-way outlet valve 44 is closed, the cylinder 40 inhales water vapor, and before the water vapor enters the cylinder 40, the water in the water vapor is first absorbed by the sponge 45, and the dry high-temperature gas enters the cylinder 40; the cylinder 40 intermittently inhales and exhausts air to form an air pump, and the cylinder 40 vacuums the inside of the drying box 10, accelerates the evaporation of water inside the fruits and vegetables, and accelerates the drying rate of the fruits and vegetables. The high-temperature gas discharged from the cylinder 40 is stored in the air storage box 50 and compressed in the air storage box 50. After opening the first automatic valve 51 and the second automatic valve 64, the air storage box 50 discharges high-speed flowing gas into the venturi tube 60, and a negative pressure is generated at the throat of the venturi tube 60. The venturi tube 60 sucks the moisture at the bottom of the drying box 10 into the venturi tube 60 and discharges it to the outside.

[0038] The slider 36 can slide back and forth to squeeze the sponge 45, wring the sponge 45 dry, and ensure that the sponge 45 can absorb water sustainably. When the slider 36 squeezes the sponge 45, the cylinder 40 is exhausted to prevent the slider 36 from squeezing the water in the sponge 45 into the cylinder 40.

[0039] The above is only an embodiment of the present invention, and the common knowledge such as the known specific structure and characteristics in the scheme is not described in detail here. It should be pointed out that for those skilled in the art, several deformations and improvements can be made without departing from the structure of the present invention, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. The integrated control system for sterilizing, boiling and drying includes a controller, which is characterized by: The input end of the controller is electrically connected to a temperature sensor, a pressure sensor and a humidity sensor respectively; the output end of the controller is electrically connected to a dehumidification fan, a circulation fan, a cold air door, and a steam unit of an air energy heat pump respectively; the temperature sensor, the pressure sensor and the humidity sensor are electrically connected to a display screen through an A / D conversion module; the temperature sensor, the pressure sensor and the humidity sensor are all arranged inside the drying box; the controller and the display screen are arranged outside the drying box; A feeding valve is provided on the top of the drying box, a fixed block with a diamond-shaped cross section is fixed to the inner upper part of the drying box, a fixed column with an axis arranged in a vertical direction is fixed to the center of the lower end of the fixed block, a sieve plate is provided below the fixed column, the sieve plate includes a hard layer at the lower part and a water-absorbing layer at the upper part, a through hole is provided on the sieve plate to connect the upper and lower sides of the sieve plate, the lower end of the fixed column is hinged to the center of the sieve plate, and a protective wall is fixed around the sieve plate; A dual-output motor is fixed to the part below the sieve plate inside the drying box, and the output shaft of the dual-output motor is arranged in the horizontal direction. A rotating rod arranged in the horizontal direction is fixed to each of the two output shafts of the dual-output motor. A cam is fixedly sleeved on each of the two rotating rods. When the end of one of the cams closest to the rotating rod is vertically upward, the end of the other cam closest to the other rotating rod is vertically downward, and the upper ends of the two cams are both in contact with the lower end of the sieve plate. A cylinder is fixed at the right inner bottom of the drying box, and a piston is connected to the internal sliding seal of the cylinder. A piston rod arranged in the vertical direction is fixed to the upper end of the piston, and the upper end of the piston rod fits the contour of the cam. A spring is arranged inside the cylinder, one end of the spring is fixed to the bottom of the cylinder, and the other end of the spring is fixed to the piston. A one-way inlet valve is arranged at the right bottom of the cylinder, a one-way outlet valve is arranged at the left bottom of the cylinder, a sponge is arranged at the inlet end of the one-way inlet valve, and a through hole is arranged at the right top of the cylinder; the right end of the rotating rod on the right side is rotatably connected to a crank, and the crank is fixed inside the drying box, and the right end of the rotating rod on the right side is fixedly connected to a first connecting rod, and the first connecting rod is hinged to a slider through a second connecting rod, and the crank, the first connecting rod, and the second The connecting rod and the slider constitute a crank slider mechanism; the number of cylinder bodies is set to two and they are symmetrically distributed about the axis of the drying box; an air storage box is fixed to the part of the bottom of the drying box between the two cylinder bodies, and two one-way outlet valves are connected to the inside of the air storage box. A venturi tube is fixed to the upper end of the air storage box, and the axis of the venturi tube is arranged in the horizontal direction. The outlet end of the air storage box is connected to the inlet end of the venturi tube through an air intake pipe, and a first automatic valve is arranged inside the air intake pipe. The outlet end of the venturi tube is connected to the outside through an exhaust pipe, and a second automatic valve is arranged inside the exhaust pipe. The first automatic valve and the second automatic valve are electrically connected to the same automatic valve switch; the throat of the venturi tube is connected to the bottom of the drying box through a suction pipe.

2. The integrated control system for killing, sterilizing, steaming and drying according to claim 1 is characterized in that: The display screen is a touch liquid crystal display screen, and the touch liquid crystal display screen is electrically connected to the controller.

3. The integrated control system for killing, sterilizing, steaming and drying according to claim 1 is characterized in that: The steam unit of the air energy heat pump comprises a steam pressure gauge and a steam flow meter, and the controller is electrically connected to the steam pressure gauge and the steam flow meter at the same time.

4. The integrated control system for killing, sterilizing, steaming and drying according to claim 1 is characterized in that: It also includes a data transmission module and a storage module. The temperature sensor, pressure sensor, humidity sensor, dehumidification fan, circulation fan, cold air door, and steam unit of the air energy heat pump are all electrically connected to the data storage module through the data transmission module.

5. The integrated control system for killing, sterilizing, steaming and drying according to claim 1 is characterized in that: It also includes a data monitoring module and an alarm module. The circulating fan is electrically connected to the data monitoring module, and the data monitoring module is electrically connected to the alarm module through a controller. When the data monitoring module detects that the current and voltage of the circulating fan exceed the standard, the data monitoring module controls the alarm module to issue an alarm through the controller.

6. The integrated control system for killing, sterilizing, steaming and drying according to claim 5 is characterized in that: The alarm module is a sound alarm.

Images