阅读说明：本技术 一种用于食品生产的电阻加热杀菌装置 (A resistance heating sterilizing equipment for food production ) 是由 章利庆 于 2019-09-06 设计创作，主要内容包括：本发明涉及食品加工技术领域,且公开了一种用于食品生产的电阻加热杀菌装置,包括箱体,所述放置盘的内部连接有热敏电阻,热敏电阻的上端连接有吸热板,排气管道的中部连接有压强控制装置,排气管道的内部连接有固定架,第二转轴的外侧设置有叶片,第二转轴的前端连接有齿轮。通过吸热板和格栅板之间的水蒸发,高温蒸汽对食品加热杀菌,且在箱体内形成高压环境,进一步对格栅板的食品进行杀菌,箱体内压强推动活塞,活塞通过挤压弹簧,箱体内的气体推动固定架内的叶片转动,叶片带动第二转轴转动,齿轮带动风扇,这一结构不仅有利于箱体内蒸汽快速散尽,还能减缓蒸汽排放过强和射频边缘过热效应。(The invention relates to the technical field of food processing, and discloses a resistance heating sterilization device for food production, which comprises a box body, wherein a thermistor is connected inside a placing disc, the upper end of the thermistor is connected with a heat absorbing plate, the middle part of an exhaust pipeline is connected with a pressure control device, a fixing frame is connected inside the exhaust pipeline, blades are arranged on the outer side of a second rotating shaft, and the front end of the second rotating shaft is connected with a gear. Through the evaporation of water between absorber plate and the grid board, high temperature steam disinfects to food heating, and form high pressure environment in the box, further disinfect to the food of grid board, pressure promotes the piston in the box, the piston passes through the extrusion spring, the blade rotation in the gaseous promotion mount in the box, the blade drives the second pivot and rotates, the gear drives the fan, this structure not only is favorable to the box steam to scatter to the greatest extent fast, can also slow down steam discharge too strong and the marginal overheat effect of radio frequency.)

1. The utility model provides a resistance heating sterilizing equipment for food production, includes box (1), its characterized in that: the lower extreme fixedly connected with base (2) of box (1), box (1) is inside about the lower extreme respectively fixedly connected with go up radio frequency device (3) and lower radio frequency device (4), go up radio frequency device (3) and include: a first upper radio frequency region (301), a second upper radio frequency region (302), a third upper radio frequency region (303), a fourth upper radio frequency region (304), and a first positioning hole (305), the lower radio frequency device (4) comprising: first radio frequency district (401) down, radio frequency district (402) under the second, radio frequency district (404) under the third, radio frequency district (404) and first locating hole (405) under the fourth, inside both sides face fixedly connected with light (5) of box (1), the bottom of box (1) is rotated and is connected with first pivot (6), dish (7) are placed to the equal fixedly connected with in the outside of first pivot (6), through-hole (701) have been seted up at the middle part of placing dish (7), the front side outer wall of box (1) is rotated and is connected with switch door (8), the right side of switch door (8) is provided with handle (801), front side outer wall right side fixed mounting of box (1) has control panel (9), control panel (9) include: display area (901), first control switch (902), second control switch (903), third control switch (904) and fourth control switch (905), place inside downside fixedly connected with thermistor (10) of dish (7), the upper end fixedly connected with absorber plate (11) of thermistor (10), place the inside of dish (7) and fixedly connected with grid plate (12) directly over absorber plate (11), rear side upper portion fixedly connected with exhaust duct (13) of box (1), middle part fixedly connected with pressure controlling means (14) of exhaust duct (13), pressure controlling means (14) include: piston (1401), insulating layer (1402), spring (1403) and locating piece (1405), inside and the rear side at pressure control device (14) of exhaust duct (13) are provided with solenoid valve (15), inside and the rear side fixedly connected with mount (16) at solenoid valve (15) of exhaust duct (13), the inside rotation of mount (16) is connected with second pivot (17), the outside of second pivot (17) just is provided with blade (1701) in exhaust duct (13), the front end fixedly connected with gear (1702) of second pivot (17).

2. The resistance heating sterilization device for food production according to claim 1, wherein: the first upper radio frequency region (301) and the second upper radio frequency region (302), the third upper radio frequency region (303) and the fourth upper radio frequency region (304) are symmetrical about the first positioning hole (305).

3. The resistance heating sterilization device for food production according to claim 1, wherein: the first lower radio frequency region (401) and the second lower radio frequency region (402), and the third lower radio frequency region (404) and the fourth lower radio frequency region (404) are symmetrical about the first positioning hole (405).

4. The resistance heating sterilization device for food production according to claim 1, wherein: the thermistor (10), the heat absorption plate (11) and the grid plate (12) are the same in length, and a gap exists between the heat absorption plate (11) and the grid plate (12).

5. The resistance heating sterilization device for food production according to claim 1, wherein: and the opposite surfaces of the heat insulation layer (1402) and the positioning block (1405) are provided with matched contact switches.

6. The resistance heating sterilization device for food production according to claim 1, wherein: the fixed frame (16) is fixed on the rear side surface of the box body (1).

7. The resistance heating sterilization device for food production according to claim 1, wherein: the exhaust duct (13) has a duct shape intersecting the second rotary shaft (17) and corresponding to the vane (1701).

8. The resistance heating sterilization device for food production according to claim 1, wherein: the gear (1702) is engaged with an exhaust fan connected to the rear wall inside the case (1).

Technical Field

The invention relates to the technical field of food processing, in particular to a resistance heating sterilization device for food production.

Background

In the food processing process, the food raw materials are often required to be heated and dried to ensure subsequent processing quality and food storage. At present often adopt heating drying device to come to heat drying process to food raw materials, place and often can not obtain abundant and even being heated in the inside food raw materials of heating drying device, this heating drying effect and follow-up processingquality who has influenced food raw materials greatly has also reduced heating drying device's performance and application scope simultaneously.

In addition, pasteurization, radiation sterilization, radio frequency heating and the like are adopted, but the processing efficiency is reduced due to overlong pasteurization time, so that the rapid and efficient industrial production is not facilitated; the meat product after irradiation sterilization can generate 'irradiation smell', and the acceptability of the product is influenced; although the radio frequency technology has the potential of being applied to sterilization of packaged food, the radio frequency edge overheating effect is still an important challenge, the heating unevenness is mainly caused by the difference between the dielectric property of food and the surrounding medium, insects and thalli in the material can also relax due to molecular polarization and absorb radio frequency energy to increase the temperature under the action of a certain strength radio frequency field, and the interaction force between molecules aggravates the energy state conversion of the radio frequency energy to the heat energy because the insects and the thalli are condensed substances, so that the protein in the body is simultaneously subjected to the actions of both non-polar heat motion and polar rotation, the space structure of the protein is changed or damaged, and the protein is denatured. After the protein is denatured, the solubility, viscosity, swelling property, permeability and stability of the protein are all obviously changed, and the bioactivity is lost.

The invention solves the problem of edge overheating effect in radio frequency heating by changing the dielectric strength of a medium around food, and adopts a resistance block in polyetherimide to measure the temperature of an electromagnetic field heating position, thereby solving the problem of product quality reduction caused by uneven radio frequency heating.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides the resistance heating sterilization device for food production, which has the advantages of saving electric power, efficiently heating food with low water content and uniformly heating the radio frequency edge, and solves the problems of electric power waste, incapability of efficiently heating food with low water content and radio frequency edge overheating effect caused by incapability of selecting a heating range.

(II) technical scheme

In order to achieve the purposes of saving electric power, efficiently heating food with low water content and uniformly heating the radio frequency edge, the invention provides the following technical scheme: the utility model provides a resistance heating sterilizing equipment for food production, includes the box, the lower extreme fixedly connected with base of box, the inside upper and lower extreme of box is fixedly connected with respectively goes up radio frequency device and lower radio frequency device, goes up the radio frequency device and includes: first upper radio frequency region, second upper radio frequency region, third upper radio frequency region, fourth upper radio frequency region and first locating hole, lower radio frequency device includes: first radio frequency district down, radio frequency district under the second, radio frequency district under the third, radio frequency district and first locating hole under the fourth, the inside both sides face fixedly connected with light of box, the bottom of box is rotated and is connected with first pivot, the equal fixedly connected with in the outside of first pivot places the dish, the through-hole has been seted up at the middle part of placing the dish, the front side outer wall of box rotates and is connected with the switch door, the right side of switch door is provided with the handle, the front side outer wall right side fixed mounting of box has control panel, control panel includes: display area, first control switch, second control switch, third control switch and fourth control switch, place the inside downside fixedly connected with thermistor of dish, thermistor's upper end fixedly connected with absorber plate, place the inside of dish and at the absorber plate directly over fixedly connected with grid plate, the rear side upper portion fixedly connected with exhaust duct of box, exhaust duct's middle part fixedly connected with pressure controlling means, pressure controlling means includes: piston, insulating layer, spring and locating piece, exhaust duct's inside and be provided with the solenoid valve in pressure control device's rear side, exhaust duct's inside and at the rear side fixedly connected with mount of solenoid valve, the inside of mount rotates and is connected with the second pivot, the outside of second pivot just is provided with the blade in exhaust duct, the front end fixedly connected with gear of second pivot.

Preferably, the first upper rf region and the second upper rf region, and the third upper rf region and the fourth upper rf region are symmetric with respect to the first positioning hole.

Preferably, the first lower rf region and the second lower rf region, and the third lower rf region and the fourth lower rf region are symmetric with respect to the first positioning hole.

Preferably, the thermistor, the heat absorbing plate and the grid plate are the same in length, a gap exists between the heat absorbing plate and the grid plate, and the gap between the heat absorbing plate and the grid plate is used for containing water, so that the radio frequency device can rapidly generate heat for a water-containing area.

Preferably, the opposite surfaces of the heat insulation layer and the positioning block are provided with matched contact switches, and the contact switches control the opening and closing of the electromagnetic valves through circuits, so that the pressure in the control box body is too high.

Preferably, the fixing frame is fixed on the rear side surface of the box body.

Preferably, the exhaust duct has a shape corresponding to the vane at a duct shape intersecting the second rotating shaft, thereby ensuring the rotating efficiency of the second rotating shaft.

Preferably, the gear is engaged with an exhaust fan connected to the rear wall inside the box body, so that the exhaust of the gas in the box body is accelerated, and the waste of energy is avoided.

(III) advantageous effects

Compared with the prior art, the invention provides a resistance heating sterilization device for food production, which has the following beneficial effects:

1. this a resistance heating sterilizing equipment for food production, the subregion design through last radio frequency device and lower radio frequency device is the zone of heating that conveniently selects to correspond according to the quantity, thereby avoid the waste of electric power, thermistor is great because inside electron movement hinders, thermistor produces great heat, the heat that thermistor produced passes through the absorber plate and spreads in the space between absorber plate and the grid plate, thereby carry out heat sterilization to the food of grid plate, current food heat sterilizing equipment can not come the selective heating according to the quantity to lead to the problem of extravagant electric power has been solved to this structure.

2. This a resistance heating sterilizing equipment for food production, it is more and the object water content is less when heating food quantity, through adding water in the space between absorber plate and the grid plate, add water evaporation under radio frequency device's rapid heating in the space between absorber plate and the grid plate this moment, and the heat that thermistor produced passes through the aquatic that the absorber plate diffusion was added, thereby the evaporation of water has been accelerated, the evaporation of water is heated and sterilized to the food of grid plate on the one hand, on the other hand vapor forms high pressure environment in the box, further disinfect to the food of grid plate, this structure can heat the less food of water content.

3. This a resistance heating sterilizing equipment for food production can turn into the temperature through the display area through the electric current among the thermistor and show to can reflect the heating temperature in the box often.

4. This a resistance heating sterilizing equipment for food production, pressure promotes the piston through the box, the piston passes through insulating layer extrusion spring, when insulating layer and locating piece contact, the solenoid valve is opened, the blade in the gaseous promotion mount in the box this moment rotates, the blade drives gear revolve on it through the second pivot, the gear just meshes rather than the fan gear in the rear side of box, thereby accelerate the inside steam emission of box, this structure not only is favorable to the box steam to disperse to the greatest extent fast, can also slow down steam emission and be too strong, and the waste of energy has been avoided.

Drawings

FIG. 1 is a schematic view of the overall front structure of the present invention;

FIG. 2 is a partial structural sectional view of the entire front of the present invention;

FIG. 3 is a schematic bottom view of the upper RF device of the present invention;

FIG. 4 is a front sectional view of the tray of the present invention;

FIG. 5 is a sectional view of the front structure of the pressure control apparatus of the present invention;

FIG. 6 is a front sectional view of the related structure of the fixing frame of the present invention;

FIG. 7 is a diagram illustrating the circuit control relationship of the present invention.

In the figure: 1 box body, 2 base, 3 upper radio frequency device, 301 first upper radio frequency region, 302 second upper radio frequency region, 303 third upper radio frequency region, 304 fourth upper radio frequency region, 305 first positioning hole, 4 lower radio frequency device, 401 first lower radio frequency region, 402 second lower radio frequency region, 404 third lower radio frequency region, 404 fourth lower radio frequency region, 405 second positioning hole, 5 lighting lamp, 6 first rotating shaft, 7 placing disc, 701 through hole, 8 switch door, 801 handle, 9 control panel, 901 display region, 902 first control switch, 903 second control switch, 904 third control switch, 905 fourth control switch, 10 thermistor, 11 heat absorbing plate, 12 grating plate, 13 exhaust pipe, 14 pressure control device, 1401 piston, 1402, spring 1403, 1405 positioning block, 15 solenoid valve, 16, 17 second rotating shaft, blade 1701, 1702 gear.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-7, a resistance heating sterilization device for food production comprises a box body 1, a base 2 is fixedly connected to the lower end of the box body 1, an upper radio frequency device 3 and a lower radio frequency device 4 are respectively and fixedly connected to the upper end and the lower end inside the box body 1, the upper radio frequency device 3 comprises: the first upper rf region 301, the second upper rf region 302, the third upper rf region 303, the fourth upper rf region 304, and the first positioning hole 305 are symmetric about the first positioning hole 305 between the first upper rf region 301 and the second upper rf region 302, and between the third upper rf region 303 and the fourth upper rf region 304. The lower radiofrequency device 4 comprises: the first lower rf region 401, the second lower rf region 402, the third lower rf region 404, the fourth lower rf region 404, and the first positioning hole 405, and the first lower rf region 401 and the second lower rf region 402, and the third lower rf region 404 and the fourth lower rf region 404 are all symmetric with respect to the first positioning hole 405. Box 1's inside both sides face fixedly connected with light 5, box 1's bottom is rotated and is connected with first pivot 6, the equal fixedly connected with in the outside of first pivot 6 places dish 7, it adopts the polyetherimide material to make to place dish 7, the polyetherimide is the material of a characteristic that has high heat resistance and dielectric strength, the through-hole 701 has been seted up at the middle part of placing dish 7, the front side outer wall of box 1 rotates and is connected with switch door 8, switch door 8's right side is provided with handle 801, box 1's front side outer wall right side fixed mounting has control panel 9, control panel 9 includes: a display area 901, a first control switch 902, a second control switch 903, a third control switch 904, and a fourth control switch 905.

Place the inside downside fixedly connected with thermistor 10 of dish 7, thermistor 10's upper end fixedly connected with absorber plate 11, place the inside of dish 7 and at absorber plate 11 directly over fixedly connected with grid plate 12, thermistor 10, absorber plate 11 and grid plate 12's length is the same, and there is the space between absorber plate 11 and the grid plate 12, and the space between absorber plate 11 and the grid plate 12 is used for holding water, because the radio frequency device can both carry out fast themogenesis to the region that has water. The rear side upper portion fixedly connected with exhaust duct 13 of box 1, exhaust duct 13's middle part fixedly connected with pressure controlling means 14, pressure controlling means 14 includes: piston 1401, insulating layer 1402, spring 1403 and locating piece 1405, the inside of exhaust duct 13 and the rear side at pressure control device 14 are provided with solenoid valve 15, the opposite face of insulating layer 1402 and locating piece 1405 is provided with the matched with contact switch, contact switch circuit control solenoid valve 15's opening and shutting to reach the too big pressure in the control box 1. A fixing frame 16 is fixedly connected to the rear side of the electromagnetic valve 15 inside the exhaust duct 13, and the fixing frame 16 is fixed to the rear side surface of the case 1. The inside of mount 16 rotates and is connected with second pivot 17, the outside of second pivot 17 just is provided with blade 1701 in exhaust duct 13, the front end fixedly connected with gear 1702 of second pivot 17, exhaust duct 13 is the shape corresponding with blade 1701 at the pipeline shape that intersects with second pivot 17, thereby guarantee second pivot 17 rotation efficiency, the exhaust fan of gear 1702 meshing connection at the inside back wall of box 1 accelerates the gaseous discharge of box 1 on the one hand, on the other hand avoids the waste of energy.

The working principle is as follows: this a resistance heating sterilizing equipment for food production, when beginning work, through waiting to heat the quantity and select the zone of heating of placing: a first upper rf zone 301 and a first lower rf zone 401, a second upper rf zone 302 and a second lower rf zone 402, a third upper rf zone 303 and a third lower rf zone 403, a fourth upper rf zone 304 and a fourth lower rf zone 404, and switches corresponding to the heating zones: the first control switch 902, the second control switch 903, the third control switch 904, and the fourth control switch 905 are power type alternating current power. This device utilizes the radio frequency principle to carry out the penetrability heating, and the concrete expression is: under the action of a radio frequency field with certain strength, insects and thalli in the material can also relax due to molecular polarization and absorb radio frequency energy to raise the temperature, and because the insects and the thalli are condensed substances, the intermolecular acting force aggravates the energy state conversion of the radio frequency energy to the heat energy, so that the protein in the body is simultaneously subjected to two aspects of non-polar heat motion and polar rotation, the space structure of the protein is changed or destroyed, and the protein is denatured. After the protein is denatured, the solubility, viscosity, expansibility, permeability and stability of the protein can be obviously changed, and the bioactivity is lost, the partition design of the upper radio frequency device 3 and the lower radio frequency device 4 is to select corresponding heating areas according to the number conveniently, so as to avoid the waste of electric power, and the device is characterized in that a thermistor 10, a heat absorbing plate 11 and a grid plate 12 arranged on the placing disc 7 and a gap between the heat absorbing plate 11 and the grid plate 12 are arranged, specifically: the thermistor 10 has a large internal electronic movement obstruction, the thermistor 10 generates a large amount of heat, the heat generated by the thermistor 10 is diffused into the gap between the heat absorbing plate 11 and the grid plate 12 through the heat absorbing plate 11, so as to heat and sterilize the food in the grid plate 12, when the amount of the heated food is large and the water content of the object is small, water is added into the gap between the heat absorbing plate 11 and the grid plate 12, at this time, the water added into the gap between the heat absorbing plate 11 and the grid plate 12 is evaporated under the rapid heating of the radio frequency device, and the heat generated by the thermistor 10 is diffused into the added water through the heat absorbing plate 11, so as to accelerate the evaporation of the water, the evaporation of the water is performed on the one hand to heat and sterilize the food in the grid plate 12, on the other hand, the water vapor forms a high-pressure environment in the box body 1, further, and the current in the thermistor 10 can be converted into a temperature display through the display area 901, so that the heating temperature in the case 1 can be reflected at all times. Meanwhile, the piston 1401 is pushed by the pressure in the box body 1, the piston 1401 presses the spring 1403 through the heat insulation layer 1402, when the heat insulation layer 1402 is contacted with the positioning block 1405, the electromagnetic valve 15 is opened, at the moment, the gas in the box body 1 pushes the blade 1701 in the fixed frame 16 to rotate, the blade 1701 drives the gear 1702 thereon to rotate through the second rotating shaft 17, and the gear 1702 is arranged at the rear side of the box body 1 and meshed with a fan gear (not shown in the figure) in the box body 1, so that the steam discharge in the box body 1 is accelerated.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.