RU21235U1 - RADIATION CONVECTIVE COOKING DRYING CABINET - Google Patents

Description

Usage: food and other industries, in particular, drying products using YK radiation, preparing diet meals, heating and maintaining the food in a preheated state. The essence of the utility model: the cabinet contains baking sheets for the product, a temperature regulator, YK-emitters of the middle spectral region, guides with an edge bent at an angle, which acts as a pressure peak.

The utility model relates to chamber radiation drying ovens of periodic action and can be used for drying agricultural and forestry products, mainly vegetable food, as well as for preparing dietary dishes, heating and keeping food in hot condition in domestic conditions.

Closest to the technical nature of the claimed utility model includes a Radiation-convective oven drying cabinet (certificate for utility model N 12725) containing a drying and cooking chambers, separated by a grid, ventilation means for input and output of a drying agent, YK-emitters of the middle spectral region, baking sheets for a product located one above the other.

The disadvantage of this cabinet is the following:

-the difference in drying temperature on the lower and upper baking sheets, which requires periodic rearrangement of baking sheets by levels;

- when the product is heated, the temperature on the baking sheets rises, which can lead to spoilage of the product and requires the switch to be in the position

- over baking sheets stagnation zones of the drying agent are possible, which affects the quality of drying:

- comparatively low efficiency.

A new technical result in the proposed cabinet, in comparison with the analogue, is the preservation of a constant temperature over the entire area of the cabinet during the entire drying time, an increase in convection and efficiency of the cabinet.

the agent is equipped with a temperature regulator with a bimetallic plate, which allows you to automatically maintain the temperature required during the drying process of the product and save energy. The new pairwise installation of baking sheets allowed to increase the number of baking sheets at the same emitter power, which increased the efficiency of the cabinet. In addition, the lower group of emitters is located below at the level of the intake openings of the drying agent. Above them are two baking sheets. The rails are structurally designed in such a way that the drying agent, having passed over one baking sheet, will have to pass over the second one, taking moisture higher into the installation zone of the upper group of n-emitters. Two baking trays are installed above the upper group of IR emitters, similarly to the lower ones, which allows the drying agent to carry moisture up from the baking sheet, i.e. out.

The result of this is to maintain the required temperature over the entire cabinet area for the entire drying time of the product and increase the number of baking sheets at the same emitter power, which will save energy and increase the cabinet efficiency.

Figure 1 shows a front view of the cabinet, figure 2 is a side view in section.

The cabinet contains a frame 1, a base 2, a front 3, a back 4, side 5 and b walls, a cover 7 with a stop 8, brackets 9, guides 10 and guides 11 with an edge bent at an angle acting as a pressure peak, a temperature regulator 12 with a handle 13 , baking sheets 14, YK-emitters 15, pan 16.

Walls 3 are attached to frame 1 and base 2. 4, 5, b above and below, respectively. A cover 7 is pivotally attached to the frame 1. A limiter 8 is pivotally attached to the cover 7 to adjust the air inlet. Four holes 17 are made in the wall 3 for installing the baking sheets 14, a hole 18 for installing the thermostat 12 and a hole 19 for installing the pallet 16. In the lower parts of the walls 5 and b, holes 20 are made for the air flow. Brackets 9, guides 10 and I are attached to the walls 5 and b. A temperature regulator 12 with a handle 13 is installed on the upper bracket 9. The baking sheets 14 are perforated, removable and placed in a drying cabinet in pairs above the YK emitters 15. The YK emitters 15 are medium emitters region of the spectrum and made in the form of a ceramic tube with a spiral inside. YK emitters 15

are arranged in a row in a row parallel to the baking sheets 14 and mounted on the brackets 9 through insulating sleeves 21. The walls 5 and 6 and the brackets 9 have a surface 22 coated with a high reflection coefficient material.

Pkaf works as follows. From the drying cabinet, the baking sheets 14 are removed, which are filled with the initial product and installed in the cabinet along the guides 10 and 11. With the limiter 8, the hinged cover 7 is set to its initial position. 1caf connect to the mains. Knob 13 of the temperature controller 12 sets the desired drying temperature. The processed product is heated by direct, reflected AI radiation, as well as convective upward air flow. Direct radiation comes from the infrared emitter 15, reflected from the brackets 9 and the walls 5 and b, covered with reflective material. The covective upward air flow is formed as follows: through the lower openings 20 of the walls 5 and 6, the outside air enters the drying cabinet. The heating of the air in the chamber is carried out mainly by emitters 15, and also partially by brackets 9 and side walls 5 and b, coated with reflective material. Heated air rises, passing through the baking sheets 14, removing moisture into the atmosphere through the air inlet 23 between the hinged lid 7 and the drying cabinet.

To heat food, dishes with products are installed on the upper pan 14, close the lid 7 and turn the handle 13 to set the thermostat 12 to the max position.

For cooking, use a low metal utensil with a lid, which is installed on the third baking sheet from above, close the lid 7 and use the handle 13 to set the thermostat 12 to the max position

After the work is completed, the cabinet is disconnected from the network. The baking sheets 14 and the tray 16 are removed from the cabinet. The finished product and garbage are removed. Baking sheets 14 and tray 16 are installed in a cabinet.

When using the utility model, a constant temperature is maintained over the entire cabinet area for the entire drying time, an increase in convection and cabinet efficiency due to the fact that a temperature controller is introduced into the cabinet design and the guides are made in the form of corners, and the baking sheets are arranged in pairs.

-3 FORMULA

Claims (1)

A radiation-convection convection drying oven containing baking sheets, mid-spectrum IR emitters and ventilation means for introducing and removing the drying agent, characterized in that it is equipped with a temperature regulator, which ensures that the temperature remains constant throughout the drying time of the product, and guides, while the guides are made in the form of corners and placed under the baking sheets, and the baking sheets are arranged in pairs and placed in the chamber above the IR emitters, which ensures uniform distribution of the drying agent over the cross section of the drying chamber and increase the efficiency of the cabinet.