Portable freshness-retaining heating device
A heating device and portable technology, applied in the field of food preservation, can solve the problems of self-explosion of tempered glass fresh-keeping boxes, and achieve the effects of reducing safety hazards, increasing gas circulation, and improving taste
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Embodiment 1
[0021] see Figure 1-5 As shown, a portable fresh-keeping heating device includes four fresh-keeping box bodies 1. The upper end of the fresh-keeping box body 1 is provided with a box cover 2, and the lower end is equipped with a box bottom 13. A heating pipe 5 is installed on the inner surface, and a shelf 4 is arranged above the heating pipe 5 . A condensation tube is arranged around the inside of the box cover to cool and keep the food in the fresh-keeping box. The heating tube installed on the inner surface of the box bottom can heat the food placed on the upper end of the shelf, so that the device has the function of fresh-keeping and heating. The setting of the shelf can isolate the water vapor accumulated at the bottom during the heating process of the food, and form a gap at the bottom. In the closed environment inside, the gas circulation in the device is increased, the nutrition of the food is locked, and the taste of the food is improved.
[0022] The fresh-keeping...
Embodiment 2
[0029] The side surface of the above-mentioned metal guide rod 7 is coated with a heat-insulating layer, and the heat-insulating coating is composed of the following components and parts by weight: 70-80 parts of floating bead fine particles, 3-8 parts of silicon carbide, 15-25 parts of polymer mortar, 5-6 parts of water; 0.05-0.6 parts of dibenzyl phosphite; 1-3 parts of silicon dioxide; 5-8 parts of pigment; 2-6 parts of graphite powder; 15-20 parts of solvent; 6-12 parts of flame retardant ; Composite rare earth 0.2-1.2 parts; Make full use of the temperature resistance of silicon dioxide and silicon carbide, plus the stability of thermal expansion and contraction of polymer mortar, so the prepared coating will not be exposed to sunlight in spring, summer, autumn and winter. There will be cracking and falling off, so that the prepared coating has a good heat insulation effect, preventing the metal guide rod 7 from being overheated and affecting the internal material of the i...
Embodiment 3
[0032] The working principle of a portable fresh-keeping heating device of the present invention is as follows: during use of the device, the power adapter rod 33 is separated from the box cover 2, food is put into the fresh-keeping box body 1, the box cover 2 is covered, and the The power adapter rod 33 is connected to the box cover 2, connected to the electrical outlet 31 through the power cord, and the switch 21 is started to perform corresponding cooling and heating operations, and the condenser tube 8 provided in the box cover 2 can quickly cool the food that needs to be kept fresh. Cooling and preservation, when food is needed, the heating tube 5 at the bottom of the fresh-keeping box body 1 is controlled by the switch 21 to heat, so that the food can be kept fresh during the transportation process, and at the same time, the food can be accelerated to cook. The shock absorbing mechanism 12 can make the device placement more stable, prevent internal bumps, and at the same ...
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