CN215454984U

CN215454984U - Low-temperature vacuum frying machine

Info

Publication number: CN215454984U
Application number: CN202121564831.3U
Authority: CN
Inventors: 梁运伟
Original assignee: Shandong Minggui Machinery Technology Co ltd
Current assignee: Shandong Minggui Machinery Technology Co ltd
Priority date: 2021-07-09
Filing date: 2021-07-09
Publication date: 2022-01-11
Anticipated expiration: 2031-07-09

Abstract

The utility model discloses a low-temperature vacuum frying machine, which comprises a vacuum frying tank and an oil storage tank, wherein a square shell communicated with the vacuum frying tank is arranged at the bottom of the vacuum frying tank, a dehydrator door driven to lift by acting two groups of door-opening cylinders is covered at a square opening of the square shell, a charging basket supporting plate driven to rotate by a motor is arranged at the bottom in the vacuum frying tank, a charging basket is placed on the charging basket supporting plate, the top opening of the charging basket is covered and pressed by an upper pressing plate, a plurality of side rotary bearings in contact with the outer side wall of the charging basket are respectively and uniformly arranged on the side wall of the vacuum frying tank, a heating coil is arranged in the bottom of the oil storage tank, and a vertical built-in filtering basket is arranged in the center of the top of the oil storage tank. The charging basket adopts a compression fixing mode, and is elastically supported by the side rotary bearing, so that the rotation stability of the charging basket can be fully ensured, the rotary deoiling effect is better, the damage to the rotating shaft of the supporting plate of the charging basket can be avoided, and the integral service life of the equipment is prolonged.

Description

Low-temperature vacuum frying machine

Technical Field

The utility model relates to food processing equipment, in particular to a low-temperature vacuum frying machine.

Background

The traditional vacuum frying and frying mode is that the deoiling processing is carried out under the conditions of normal temperature and normal pressure, the deoiling effect is poor, the oil content of food materials is large, the appearance and the nutritional ingredients of food are damaged in different degrees due to secondary deoiling, and the discharging mode is that an upward-opening door crane is used for hanging out discharging materials, so that the operation is not easy, the automation degree is low, the occupied space is large, the food frying and frying mode is clumsy, the efficiency is low, certain potential safety hazards exist and the like; the traditional high-temperature frying edible oil has the advantages that components in the oil are subjected to polymerization reaction at high temperature for a long time, carcinogens are generated, and the health of people is seriously influenced by frequent eating. Meanwhile, the processing range is also limited by the variety of food materials, for example, after fruits and vegetables with high cellulose and pectin contents such as apples and eggplants are fried at high temperature, the surfaces of food material slices are easy to be burnt and become dry and hard and are not easy to chew, cellulose can be oxidized and decomposed at high temperature, and the color and luster can be seriously influenced; vegetables rich in saccharides and aminophenol, such as pumpkin, garlic, onion, etc., generate acrylamide which may be carcinogenic when fried at high temperature. In view of the above, the conventional frying method is only suitable for processing starch or food products with high starch content, such as flour, nuts, meat, etc., and thus a frying device with more comprehensive frying types is required.

SUMMERY OF THE UTILITY MODEL

In order to solve the above problems, it is an object of the present invention to provide a low temperature vacuum fryer

In order to achieve the purpose, the technical scheme of the utility model is as follows: the utility model provides a low temperature vacuum fryer, including vacuum frying jar and oil storage tank, oil storage tank bottom is through circulating oil pump through heat exchanger and vacuum frying jar intercommunication, the top intercommunication of pneumatic ball valve and the time return line and the backwash valve of pneumatic ball valve top through the bottom and oil storage tank is fried in vacuum still, and time return line and backwash valve are higher than the oil storage tank, the top of vacuum frying jar is passed through the pipeline and is linked together with oil water separator behind the condenser, oil water separator bottom is provided with the drain valve, oil water separator's the end of bleeding and vacuum pump package intercommunication, pass through oil water separator through the vacuum pump package, the condenser is to the vacuum frying jar evacuation.

Furthermore, a square shell is arranged on one side of the bottom of the vacuum frying tank and is communicated with the vacuum frying tank, a dehydrator door which is driven to lift by acting on two groups of door-opening cylinders is covered at a square opening of the square shell, a charging basket supporting plate which is driven to rotate by a motor is arranged at the bottom in the vacuum frying tank, a charging basket is placed on the charging basket supporting plate, an opening at the top of the charging basket is covered and compressed by an upper compression plate, and a plurality of lateral rotary bearings which are contacted with the outer lateral wall of the charging basket are uniformly arranged on the lateral wall of the vacuum frying tank respectively;

furthermore, a heating coil is arranged in the bottom of the oil storage tank, a vertical built-in filtering basket is arranged in the center of the top of the oil storage tank, the top of the built-in filtering basket is a sanitary manhole with a cover, and the pneumatic ball valve, the oil return pipeline and the return valve are communicated with the built-in filtering basket after penetrating through the side wall of the oil storage tank.

Furthermore, a compressing and fixing support is arranged in the vacuum frying tank above the upper compressing plate, a bearing at the center of the compressing and fixing support penetrates through the fixed compressing rotating shaft, and the lower end of the compressing rotating shaft is fixedly connected with the upper compressing plate through a compressing spring.

Furthermore, the bottom of the vacuum frying tank is provided with a rotary transmission sealing body, a rotating shaft fixedly connected with the center of the lower surface of the charging basket supporting plate penetrates through the rotary transmission sealing body, the motor drives the rotating shaft of the charging basket supporting plate to rotate through a belt pulley and a belt, and the motor is located in a support at the bottom of the vacuum frying tank.

Further, each side rotary bearing is elastically connected with the inner side wall of the vacuum frying tank through a supporting spring.

Further, the top of vacuum frying jar and oil storage tank is provided with respectively and takes the lamp sight glass, and vacuum frying jar middle part then is provided with circular observation mirror, is provided with inside filter screen in the top of vacuum frying jar, and the middle part of oil storage tank then is provided with vertical rectangular sight glass, and one side of oil storage tank is provided with the cat ladder.

Furthermore, the two sides of the dewaterer door are provided with vertical slide rails, so that the dewaterer door can slide up and down along the slide rails, the top of the dewaterer door is rotatably connected with the lifting rods of the two groups of door opening cylinders through a plurality of movable hinges, the slide rails on all sides are respectively driven by the tensioning cylinders on all sides, and the dewaterer door is tightly locked in the opening direction of the square shell after falling.

Compared with the prior art, the utility model has the following advantages:

1. heating, deep-fry, oil storage, deoiling, dehydration, oil filtration integrated design, the continuity is accomplished under the vacuum, and degree of automation is high, easy operation is understandable, efficiency improves, the quality promotes, the product oil content is low, and the product is in the negative pressure state, carries out food processing under this kind of relative oxygen deficiency's condition, can alleviate or even avoid the harm that oxidation (for example fat rancidity, enzymatic browning and other oxidation deteriorate etc.) brought. In a negative pressure state, oil is used as a heat transfer medium, and water (free water and partially bound water) in food is rapidly evaporated and sprayed out, so that the texture forms a loose and porous structure.

2. The utility model is convenient to adopt PLC automatic control, the PLC automatically controls temperature and pressure (vacuum degree), no overheating and no overpressure are generated, and the product quality and safe production are ensured.

3. The motor of the deoiling system drives the rotating shaft of the material basket supporting plate to rotate through the belt pulley and the belt, and the motor adopts variable frequency speed regulation and is suitable for all products with low oil content and high oil content; the built-in deoiling improves the efficiency, has good deoiling effect and avoids the pollution of products.

4. The oil-water separator can cool and separate evaporated water oil, reduce the pollution of water circulation, improve the reuse rate of water and reduce the loss of oil.

5. The top center of the oil storage tank is provided with a vertical built-in filtering basket, and in addition, a heating system is arranged in the oil storage tank, heating is controlled independently, oil residues are filtered circularly during frying, so that grease is kept clean all the time, and oil loss and waste are reduced.

6. The utility model is made of high-quality stainless steel materials, and has the characteristics of long service life, high work efficiency, stable performance, convenient installation and use and the like.

7. The support body is two layers of stack design, and easy dismounting is convenient for transport and advance to stay the installation in food workshop.

8. The charging basket adopts and compresses tightly fixed mode, and the lateral part passes through lateral part swivel bearing elastic support, can fully guarantee the rotatory stability of charging basket, and rotatory deoiling effect is better, can also avoid causing the damage to charging basket layer board pivot, improve equipment's whole life, moreover operate steadily greatly reduced the noise, it is safe more, stable, effective.

Drawings

The present invention will now be further described with reference to the accompanying drawings.

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

FIG. 2 is a schematic front view of a vacuum frying pan according to the present invention;

FIG. 3 is a schematic front view of the oil storage tank of the present invention;

fig. 4 is a schematic top view of a vacuum frying pan of the present invention.

Detailed Description

As shown in figures 1-4, a low temperature vacuum frying machine comprises a vacuum frying tank 1 and an oil storage tank 2, in order to prevent heat loss, the outside of the vacuum frying tank 1 and the oil storage tank 2 can be covered with heat insulating materials, such as heat insulating asbestos, the bottom of the oil storage tank 2 is communicated with the vacuum frying tank 1 through a heat exchanger 4 by a circulating oil pump 3, the vacuum frying tank 1 is also communicated with the top of the oil storage tank 2 through a pneumatic ball valve 5 at the bottom and an oil return pipeline and a reflux valve 6 above the pneumatic ball valve 5, the oil return pipeline and the reflux valve 6 are higher than the oil storage tank 2, the vacuum frying tank 1 is provided with an exhaust valve, the top of the vacuum frying tank 1 is communicated with an oil-water separator 8 after passing through a condenser 7 by a pipeline, the bottom of the oil-water separator 8 is provided with a drain valve, the air exhaust end of the oil-water separator 8 is communicated with a vacuum pump set 9, and passes through the oil-water separator 8 by the vacuum pump set 9, The condenser 7 vacuumizes the vacuum frying tank 1;

a square shell 10 is arranged on one side of the bottom of a vacuum frying tank 1, the square shell 10 is communicated with the vacuum frying tank 1, a square opening of the square shell 10 is covered with a dehydrator door 12 which drives the vacuum frying tank 1 to lift by acting two groups of door opening cylinders 11, a charging basket supporting plate 14 which is driven to rotate by a motor 13 is arranged at the bottom in the vacuum frying tank 1, a charging basket 15 is placed on the charging basket supporting plate 14, the top opening of the charging basket 15 is covered and pressed by an upper pressing plate, the side wall of the vacuum frying tank 1 is respectively and uniformly provided with a plurality of side rotary bearings 16 which are contacted with the outer side wall of the charging basket 15, each side rotary bearing 16 is respectively and elastically connected with the inner side wall of the vacuum frying tank 1 through a supporting spring 24, a pressing and fixing support 20 is arranged in the vacuum frying tank 1 above the upper pressing plate, a bearing which compresses the center of the fixing support 20 penetrates through a fixed pressing rotary shaft 21, the lower end of the pressing rotary shaft 21 is fixedly connected with the upper pressing plate through an over pressing spring 22, the bottom of the vacuum frying tank 1 is provided with a rotary transmission sealing body 23, a rotating shaft fixedly connected with the center of the lower surface of the charging basket supporting plate 14 penetrates through the rotary transmission sealing body 23, a motor 13 drives the rotating shaft of the charging basket supporting plate 14 to rotate through a belt pulley and a belt, and the motor 13 is positioned in a bracket at the bottom of the vacuum frying tank 1;

a heating coil 17 is arranged in the bottom of the oil storage tank 2, a vertical built-in filtering basket 18 is arranged in the center of the top of the oil storage tank 2, the top of the built-in filtering basket 18 is a sanitary manhole 19 with a cover, and the pneumatic ball valve 5, the oil return pipeline and the return valve 6 penetrate through the side wall of the oil storage tank 2 and then are communicated with the built-in filtering basket 18.

The top of vacuum frying jar 1 and oil storage tank 2 is provided with respectively and takes lamp sight glass 25, and the 1 middle part of vacuum frying jar then is provided with circular observation sight glass 26, is provided with inside filter screen 29 in the top of vacuum frying jar 1, and impurity takes out vacuum pump group 9 when inside filter screen 29 can prevent to take out the vacuum, and the middle part of oil storage tank 2 then is provided with vertical rectangular sight glass 27, and one side of oil storage tank 2 is provided with cat ladder 28.

In order to make the leakproofness of vacuum frying jar 1 better after hydroextractor door 12 whereabouts, the both sides of hydroextractor door 12 are provided with vertical slide rail 30, make hydroextractor door 12 slide from top to bottom along slide rail 30, the top of hydroextractor door 12 is connected with the lifter 32 rotation that two sets of door-opening cylinders 11 promote the lift through a plurality of living hinges 31, the slide rail 30 of each side drives through the taut cylinder 33 of each side respectively, make the taut locking of square shell 10 opening direction after hydroextractor door 12 whereabouts, both can drive hydroextractor door 12 through living hinge 31 swing joint and go up and down, can be at the backward movement when taut cylinder 33 is taut again.

The working principle of the utility model is as follows: firstly, opening a sanitary manhole 19 of an oil storage tank 2, injecting edible oil into the oil storage tank 2, observing through a strip sight glass, closing and locking the sanitary manhole 19 after the required oil level is reached, and raising the temperature of the oil in the oil storage tank 2 to a set value through a heating coil 17 in advance; the method comprises the steps of pushing up and opening a dehydrator door 12 by a door opening cylinder 11, covering an upper cover with meshes after loading materials in a charging basket 15, then placing the charging basket on a charging basket supporting plate 14, elastically pressing and locking the charging basket 15 on the charging basket supporting plate 14 by an upper pressing plate to prevent the charging basket from falling off and shaking up and down, wherein the spring is elastically designed, safe and effective, the dehydrator door 12 is pulled down and closed by the door opening cylinder 11, an exhaust valve of a vacuum frying tank 1 is closed, a pneumatic ball valve 5 is closed, a vacuum pump set 9 is started, the vacuum frying tank 1 and an oil storage tank 2 are pumped to a set vacuum negative pressure state, a heating medium pipeline of a heat exchanger 4 is started for heating, a circulating oil pump 3 is started to pump edible oil in the oil storage tank 2 into the vacuum frying tank 1, when the oil level reaches an overflow oil level, the edible oil can flow back into the oil storage tank 2 through an oil return pipeline and a return valve 6, wherein a part of the edible oil is always in a circulating state through the circulating oil pump 3, the frying machine can observe oil by a circular observation sight glass 26 (the interior of the frying machine is illuminated by a sight glass 25 with a lamp), the side surface of the vacuum frying tank 1 can stand on an observation stool when observing, when a temperature sensor in the vacuum frying tank 1 detects that the temperature in the frying machine reaches a set temperature, a heating medium pipeline of a heat exchanger is automatically closed by an automatic valve, the vacuum frying tank 1 is vacuumized, a cooling refrigerant of a condenser 7 is always in an open circulation state through a cooling water inlet and a cooling water outlet, water drops formed inside the oil-water separator 8 fall into an end socket part of the oil-water separator, the water level inside the oil-water separator is observed by a sight glass at the end socket part of the oil-water separator, the oil is periodically drained by a drain valve to keep dry when the vacuum frying tank 1 is in a non-working state, and simultaneously, a motor 24 is started to carry out frequency conversion and speed regulation and drive, so that a charging basket 15 runs at a low speed and is convenient for uniform frying; after the materials in the vacuum frying tank 1 reach the set frying time, closing a heating medium pipeline, closing a motor 24, closing a circulating oil pump 3, opening a pneumatic ball valve 5, making the oil in the vacuum frying tank 1 flow back into an oil storage tank 2, observing the tank through a long-strip sight glass and a side-surface circular sight glass, starting the motor 24 after oil return is finished, simultaneously starting variable frequency speed regulation and driving rotation to enable a charging basket 15 to run at high speed, performing deoiling treatment on the materials in the charging basket 15 in the vacuum frying tank 1, closing the motor 24 after the set deoiling time is reached, opening an exhaust valve on the frying machine after the whole process is finished, relieving the vacuum in the vacuum frying tank 1, opening a dehydrator door 12, and dragging the charging basket 15 out for material loading and unloading;

after the process is finished, cleaning the fried dough, and then carrying out the next low-temperature vacuum frying operation according to the steps; above-mentioned process accessible electrical system, temperature control system, gas control system and automatic valve all carry out operation control through the electrical control cabinet, for prior art, can realize with the help of prior art, no longer give unnecessary details to specific circuit structure here.

When the device is not used for a long time, all power supplies, heating medium and cooling medium pipelines and the like are closed, the inside and the outside of the device are cleaned, and a sanitary manhole 19 at the upper part of the oil storage tank 2 is required to be opened periodically to carry out slag removal treatment on the built-in filter basket 18.

The above description is only an exemplary embodiment of the present invention, and is not intended to limit the scope of the present invention. Any equivalent changes and modifications that can be made by one skilled in the art without departing from the spirit and principles of the utility model should fall within the protection scope of the utility model.

Claims

1. A low-temperature vacuum frying machine comprises a vacuum frying tank (1) and an oil storage tank (2), wherein the bottom of the oil storage tank (2) is communicated with the vacuum frying tank (1) through a circulating oil pump (3) and a heat exchanger (4), the vacuum frying tank (1) is also communicated with the top of the oil storage tank (2) through a pneumatic ball valve (5) at the bottom and an oil return pipeline and a backflow valve (6) above the pneumatic ball valve (5), the oil return pipeline and the backflow valve (6) are higher than the oil storage tank (2), the top of the vacuum frying tank (1) is communicated with an oil-water separator (8) after passing through a condenser (7) through a pipeline, the bottom of the oil-water separator (8) is provided with a drain valve, the air exhaust end of the oil-water separator (8) is communicated with a vacuum pump set (9), the vacuum frying tank (1) is vacuumized through the oil-water separator (8) and the condenser (7) through the vacuum pump set (9), the method is characterized in that: a square shell (10) is arranged on one side of the bottom of a vacuum frying tank (1), the square shell (10) is communicated with the vacuum frying tank (1), a dehydrator door (12) which is driven to lift by acting two groups of door-opening cylinders (11) is covered at a square opening of the square shell (10), a charging basket supporting plate (14) which is driven to rotate by a motor (13) is arranged at the bottom in the vacuum frying tank (1), a charging basket (15) is placed on the charging basket supporting plate (14), the top opening of the charging basket (15) is covered and pressed by an upper pressing plate, and a plurality of lateral rotary bearings (16) which are contacted with the outer lateral wall of the charging basket (15) are respectively and uniformly arranged on the lateral wall of the vacuum frying tank (1);

a heating coil (17) is arranged in the bottom of the oil storage tank (2), a vertical built-in filtering basket (18) is arranged at the center of the top of the oil storage tank (2), a sanitary manhole (19) with a cover is arranged at the top of the built-in filtering basket (18), and the pneumatic ball valve (5), the oil return pipeline and the return valve (6) are communicated with the built-in filtering basket (18) after penetrating through the side wall of the oil storage tank (2).

2. A low temperature vacuum fryer according to claim 1, wherein: a pressing fixing support (20) is arranged in the vacuum frying tank (1) above the upper pressing plate, a bearing at the center of the pressing fixing support (20) penetrates through a fixed pressing rotating shaft (21), and the lower end of the pressing rotating shaft (21) is fixedly connected with the upper pressing plate through a pressing spring (22).

3. A low temperature vacuum fryer according to claim 1, wherein: the bottom of the vacuum frying tank (1) is provided with a rotary transmission sealing body (23), a rotating shaft fixedly connected with the center of the lower surface of the charging basket supporting plate (14) penetrates through the rotary transmission sealing body (23), the motor (13) drives the rotating shaft of the charging basket supporting plate (14) to rotate through a belt pulley and a belt, and the motor (13) is located in a support at the bottom of the vacuum frying tank (1).

4. A low temperature vacuum fryer according to claim 1, wherein: each side rotary bearing (16) is elastically connected with the inner side wall of the vacuum frying tank (1) through a supporting spring (24).

5. A low temperature vacuum fryer according to claim 1, wherein: the top of the vacuum frying tank (1) and the top of the oil storage tank (2) are respectively provided with a sight glass (25) with a lamp, the top of the vacuum frying tank (1) is internally provided with an internal filter screen (29), the middle part of the vacuum frying tank (1) is provided with a circular observation sight glass (26), the middle part of the oil storage tank (2) is provided with a vertical strip sight glass (27), and one side of the oil storage tank (2) is provided with a ladder stand (28).

6. A low temperature vacuum fryer according to claim 1, wherein: the both sides of hydroextractor door (12) are provided with vertical slide rail (30), make hydroextractor door (12) slide from top to bottom along slide rail (30), the top of hydroextractor door (12) is passed through a plurality of activity hinges (31) and two sets of lifter (32) that open door cylinder (11) and promote the lift and rotate and be connected, slide rail (30) of each side drive through taut cylinder (33) of each side respectively, make the taut locking of square shell (10) opening direction after hydroextractor door (12) whereabouts.