CN217931613U - Round fruit and vegetable fresh-keeping test device based on high-voltage electric field - Google Patents

Abstract

The utility model discloses a circular fruit vegetables test device that keeps fresh based on high-tension electric field belongs to the fresh-keeping technical field of agricultural product, and the main part includes high-pressure generator, pneumatic conveying system, high-pressure processing system and frame. The test device realizes the automatic adjustment of the electrode spacing through the lead screw vertical lifting mechanism; the fruit and vegetable are driven to turn over through the shaft roller turning mechanism, so that the uniformity of electric field treatment is effectively improved; wherein the shaft roller turnover mechanism is connected with the horizontal screw mechanism to complete the integrated management of fruit and vegetable feeding and discharging, thereby realizing the automatic treatment of the preservation process; the air heater provides a constant temperature environment required by the test and carries out real-time monitoring through the sensor. The fresh-keeping device is simple in structure, key parts can be detached, a plurality of technical parameters can be adjusted to meet different test requirements, the high-voltage electric field treatment test flow is effectively improved, and a new test device is provided for the field of fruit and vegetable fresh keeping in China.

Description

Circular fruit vegetables fresh-keeping test device based on high-voltage electric field

Technical Field

The utility model belongs to the technical field of agricultural product is fresh-keeping, specifically relate to a circular fruit vegetables fresh-keeping test device based on high-tension electric field.

Background

The fresh-keeping is an important technical means for food processing, and plays an important role in improving the food quality, prolonging the shelf life of the food, ensuring the food safety and the like. However, the traditional preservation technology is often influenced by external factors such as ambient relative temperature, humidity and the like and physiological characteristics of the traditional preservation technology, and has the problems of environmental pollution, high technical cost, complex process and the like after long-term use, so that the market demand cannot be well met; although the low-temperature preservation is beneficial to inhibiting and delaying the growth of microorganisms and reducing the rate of related enzymatic reactions, the requirements for temperature need to be met in real time, resource waste and environmental pollution are easily caused, and the preservation temperatures of different fruits and vegetables are different, and the related standards need to be further specified. The high-voltage electric field technology can well keep the organizational structure, the sensory quality and the like of food, particularly aims at certain heat-sensitive food, and has the advantages of low equipment manufacturing cost, energy conservation, environmental protection and the like.

High-voltage electric field is through changing the transmembrane potential of cell membrane, change relevant enzyme activity, ionized air, produce ozone etc. mode and keep fresh the fruit vegetables, and its fresh-keeping effect is relevant with a plurality of factors, such as electric field intensity, electric field interval, processing time, temperature etc. but the research to high-voltage electric field fresh-keeping technique is mostly utilized simply, the comparatively single device of function is accomplished at present, only for satisfying experimental demand, do not consider the homogeneity problem of electric field treatment, maneuverability is relatively poor, and the suitability is not extensive. The fresh-keeping device can conveniently adjust a plurality of technical parameters such as hot air temperature, air speed, voltage and the like, and can realize automatic adjustment of the electrode spacing; the round fruits and vegetables are driven to turn over through the shaft roller turning mechanism, so that the uniformity of electric field treatment is effectively improved; the device can detect and record data such as wind speed, temperature and humidity, and key parts on the device can be replaced by different types. The device has compact integral structure, can carry out various experimental conditions and is convenient for experimental research.

Disclosure of Invention

The utility model discloses to the problem that exists among the background art, aim at providing a high-tension electric field fresh-keeping test device that extensive applicability, be convenient for operation, can effectively improve the homogeneity of handling.

In order to achieve the above purpose, the utility model adopts the following technical scheme: a round fruit and vegetable fresh-keeping experimental device based on a high-voltage electric field comprises an air conveying system, a rack 4, a high-voltage generator 5, a processing chamber 8 and a high-voltage processing system; the air supply system consists of an air heater 1, a corrugated pipe 2 and an air duct 3; the high-voltage processing system consists of an upper polar plate 7, a lower polar plate 12, a lead screw vertical lifting mechanism 6, a horizontal lead screw mechanism 9 and a shaft roller turnover mechanism 10, and is integrally placed on the upper part of an insulating support frame 13. One end of the air duct 3 is connected with the air heater 1 through the corrugated pipe 2, and the other end of the air duct is connected with the processing chamber 8; in the high-voltage treatment system, an upper polar plate 7 is connected with a lead screw vertical lifting mechanism 6 arranged on a rack 4 through an angle bracket 6.3, high voltage emitted by a high-voltage generator 5 is introduced, and a lower polar plate 12 is arranged right below the upper polar plate 7 and is subjected to grounding treatment to form a high-voltage electric field treatment space; the lead screw vertical lifting mechanism 6 can drive the upper polar plate 7 to move in the vertical direction under the driving of the stepping motor I6.1, so that the automatic adjustment of the electrode spacing is realized; the shaft roller turnover mechanism 10 is arranged between the upper polar plate 7 and the lower polar plate 12, the same-direction rotation of the shaft rollers 10.5 is used for turning round fruits and vegetables, the uniformity of electric field treatment is effectively improved, meanwhile, wheels 11 are installed at the bottom of the shaft roller turnover mechanism 10, under the drive of a stepping motor II 9.2, the horizontal lead screw mechanism 9 drives the shaft roller turnover mechanism 10 to move along the axis direction of the horizontal lead screw mechanism 9, so that before the fruits and vegetables are treated by a high-voltage electric field, the shaft roller turnover mechanism 10 can be moved out of the treatment chamber 8 by adjusting the horizontal lead screw mechanism 9 to be filled with the fruits and vegetables, get into the process chamber 8 again in, realize the fresh-keeping automated processing of high-voltage electric field, wind channel 3 is connected through poroid baffle 16 with process chamber 8, and the heat and the wind speed that make to reach process chamber 8 under baffle 16 and wind channel 3's effect are even, satisfy experimental environmental requirement, install wind speed detector 14 and humiture detector 15 on the baffle 16 for detect process chamber 8's wind speed and humiture, wind channel 3 blocks by organic glass with process chamber 8 all around, forms airtight space, reduces external environment influence, improves fresh-keeping effect.

Further, the frame is mainly built by adopting aluminum profiles.

Furthermore, the power generator and the hot air blower are fixedly connected on the frame, the high-voltage generator is fixedly connected with the processing chamber part, and the hot air blower is connected with the air duct through a corrugated pipe.

Furthermore, lead screw vertical lift mechanism adopts step motor I to drive, through bolt and nut fixed mounting in the frame of process chamber, goes up the polar plate and is connected with lead screw vertical lift mechanism through the angle sign indicating number.

Further, a shaft roller turnover mechanism is arranged between the upper electrode plate and the lower electrode plate and is driven by a stepping motor III and a belt wheel conveying mechanism.

Further, the shaft roller turnover mechanism is connected with the horizontal lead screw mechanism through a sliding block and is driven by a stepping motor II.

Furthermore, the processing chamber and the air duct are made of organic glass materials, so that the external influence is reduced, and the observation is convenient.

The utility model has the advantages that:

(1) the round fruit and vegetable fresh-keeping test device based on the high-voltage electric field can adjust a plurality of technical parameters to meet different processing conditions, such as electrode spacing, electrode voltage, processing temperature, overturning speed, processing time and the like;

(2) the roller turnover mechanism is utilized to improve the uniformity of an electric field during the treatment of round fruits and vegetables, and meanwhile, the roller turnover mechanism and the horizontal lead screw mechanism are connected to form a push-pull type structure, so that the automatic treatment of feeding and discharging is better realized.

Drawings

FIG. 1 is a front view of a circular fruit and vegetable preservation test device based on a high-voltage electric field;

FIG. 2 is a side view of a round fruit and vegetable preservation test device based on a high-voltage electric field;

FIG. 3 is a schematic structural diagram of a shaft roller turnover mechanism of a round fruit and vegetable fresh-keeping test device based on a high-voltage electric field;

reference numerals: 1. the air heater 2, the corrugated pipe 3, the air duct 4, the rack 5, the high-voltage generator 6, the lead screw vertical lifting mechanism 6.1, the stepping motor I6.2, the coupler I6.3, the angle code 6.4, the ball screw I6.5, the sliding table 7, the upper polar plate 8, the processing chamber 9, the horizontal lead screw mechanism 9.1, the supporting frame 9.3, the motor base 9.4, the coupler II 9.5, the ball screw II 9.6, the sliding block 10, the shaft roller turnover mechanism 10.1, the transmission mechanism 10.2, the belt pulley 10.3, the synchronous belt 10.4, the stepping motor III, the shaft roller 10.5, the shaft roller supporting frame 11, the wheel 12, the lower polar plate 13, the insulating supporting frame 14, the wind speed detector 15, the temperature and humidity sensor 16 and the partition plate.

Detailed Description

The technical solution in the embodiments of the present invention will be described in detail below with reference to the accompanying drawings in the embodiments of the present invention. It should be noted that these descriptions are exemplary and are not intended to limit the scope of the present invention.

As shown in fig. 1, the round fruit and vegetable fresh-keeping testing device based on the high-voltage electric field of the embodiment comprises an air conveying system, a rack 4, a high-voltage generator 5, a processing chamber 8 and a high-voltage processing system; the air supply system consists of an air heater 1, a corrugated pipe 2 and an air duct 3; the high-voltage processing system consists of an upper polar plate 7, a lower polar plate 12, a lead screw vertical lifting mechanism 6, a horizontal lead screw mechanism 9 and a shaft roller turnover mechanism 10, and is integrally placed on the upper part of an insulating support frame 13.

As shown in fig. 1, a porous partition plate 16 is arranged on the connection surface between the air duct 3 and the processing chamber 8, so that heat and air speed reaching the processing chamber 8 are uniform under the action of the partition plate 16 and the air duct 3, the environmental requirements of the test are met, an air speed detector 14 and a temperature and humidity detector 15 are arranged on the partition plate 16 and used for detecting the air speed and the temperature and the humidity of the processing chamber 8, the processing chamber 8 and the air duct 3 are made of colorless transparent organic glass materials and are mainly used for forming an approximately sealed processing environment, reducing external influences and facilitating observation.

As shown in fig. 2, the upper polar plate 7 is connected with a lead screw vertical lifting mechanism 6 through an angle bracket 6.3, and the lead screw vertical lifting mechanism 6 drives the upper polar plate to move in the vertical direction under the driving of a stepping motor I6.1, so that the automatic adjustment of the electrode distance is realized; the bottom of a shaft roller turnover mechanism 10 in a high-voltage processing system is provided with a wheel 11, under the drive of a stepping motor II 9.2, a horizontal lead screw mechanism 9 drives the shaft roller turnover mechanism 10 to move along the axis direction of the horizontal lead screw mechanism 9, before the fruits and vegetables are processed by a high-voltage electric field, the shaft roller turnover mechanism 10 can move out of a processing chamber 8 by adjusting the horizontal lead screw mechanism 9, and after the fruits and vegetables are filled, the fruits and vegetables enter the processing chamber 8 again, so that the integrated management of fruit and vegetable feeding and discharging is completed.

As shown in fig. 3, the shaft roller turnover mechanism 10 is composed of a plurality of shaft rollers 10.5 with power, the power of the shaft rollers 10.5 is provided by a stepping motor iii 10.4 through a transmission mechanism 10.1, the end part of each shaft roller is provided with a belt pulley 10.2, except for the tail end belt pulley 10.2, each belt pulley 10.2 is a driving wheel and a driven wheel, the power transmission is carried out between the adjacent belt pulleys 10.2 by a synchronous belt 10.3, all the belt pulleys 10.2 rotate in the same direction under the drive of the stepping motor iii 10.4, and the fruits and vegetables to be treated are turned over by friction force so as to improve the uniformity of electric field treatment.

The key parts of the device can be detached, such as the high-voltage electrode plate 7, the grounding electrode plate 12, the shaft roller gap, the sensor and the like, and can be replaced with different types and sizes as required.

In addition, in all descriptions of the present invention, unless otherwise specified, the terms "connected" and "connected" should be interpreted broadly, and may represent any connection modes that do not affect the normal operation in the prior art, and the terms "upper", "lower", "left", "right", and the like, refer only to the relative positions of the adjacent components.

The described embodiments of the present invention are intended to be illustrative only and not limiting. Therefore, all modifications and substitutions should be considered as falling within the scope of the present invention without departing from the scope of the present invention.

Claims (3)

1. A round fruit and vegetable fresh-keeping test device based on a high-voltage electric field is characterized by at least comprising an air conveying system, a rack (4), a high-voltage generator (5), a treatment chamber (8) and a high-voltage treatment system; the air supply system consists of an air heater (1), a corrugated pipe (2) and an air duct (3); the high-pressure treatment system consists of an upper polar plate (7), a lower polar plate (12), a lead screw vertical lifting mechanism (6), a horizontal lead screw mechanism (9) and a shaft roller turnover mechanism (10), and the whole high-pressure treatment system is placed on the upper part of an insulating support frame (13);

one end of the air duct (3) is connected with the air heater (1) through the corrugated pipe (2), and the other end is connected with the processing chamber (8);

in the high-voltage processing system, an upper polar plate (7) is connected with a lead screw vertical lifting mechanism (6) arranged on a rack (4) through an angle bracket (6.3) and is connected with high voltage emitted by a high-voltage generator (5), and a lower polar plate (12) is arranged right below the upper polar plate (7) for grounding processing; the lead screw vertical lifting mechanism is driven by a stepping motor I (6.1);

the shaft roller turnover mechanism (10) is arranged between the upper polar plate (7) and the lower polar plate (12), wheels (11) are mounted at the bottom of the shaft roller turnover mechanism, and the shaft roller turnover mechanism (10) is driven by the horizontal lead screw mechanism (9) to move along the axis direction of the horizontal lead screw mechanism (9) under the drive of the stepping motor II (9.2); before the high-voltage electric field is used for processing the fruits and vegetables, the horizontal screw rod mechanism (9) is adjusted to drive the shaft roller turnover mechanism (10) to move out of the processing chamber (8), and after the fruits and vegetables are filled, the fruits and vegetables enter the processing chamber (8) again.

2. The circular fruit and vegetable fresh-keeping test device based on the high-voltage electric field according to claim 1, wherein the air duct (3) is connected with the processing chamber (8) through a porous partition plate (16), an air speed detector (14) and a temperature and humidity detector (15) are installed on the partition plate (16), and the air duct (3) and the processing chamber (8) form a closed constant-temperature and constant-humidity space through organic glass.

3. The circular fruit and vegetable preservation test device based on the high-voltage electric field as claimed in claim 1, wherein the shaft roller turnover mechanism is composed of a plurality of powered shaft rollers (10.5), the power of the shaft rollers (10.5) is provided by a stepping motor III (10.4) through a transmission mechanism (10.1), the end part of each shaft roller is provided with a belt pulley (10.2), except for a tail end belt pulley (10.2), each belt pulley (10.2) is a driving wheel and a driven wheel, power transmission is carried out between the adjacent belt pulleys (10.2) by a synchronous belt (10.3), all the belt pulleys (10.2) rotate in the same direction under the driving of the stepping motor III (10.4), the circular fruit and vegetable to be processed is turned over by the friction force to improve the uniformity of electric field processing, and the size of the shaft rollers is considered by combining with the specific fruit and vegetable.

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