CN211952953U - Convection thermal storage heater - Google Patents

Abstract

The convection heat storage heater is composed of a casing, an electric heating pipe, a heat storage plate and a controller. The electric heating pipe and the heat storage plate are mechanically fixed at the lower part of the casing; between the casing and the electric heating pipe, a heat storage plate is installed. The hot plate is made of 0.5 to 10 mm metal plate. When the electric heating tube is energized and working, the heat storage plate will absorb and store heat, and at the same time release heat to achieve convection; when the electric heating tube stops working, the heat stored in the heat storage plate will be The air between and on both sides of the heat storage plates continues to be heated, and convection is continuously generated.

Description

Convection thermal storage heater

technical field

The utility model relates to a heater, in particular to a convection heat storage type heater.

Background technique

Most of the heaters sold in the existing market are convection heaters, represented by skirting heaters; this heater has a simple structure, and there are electric heating wires in one or two metal pipes. Magnesium oxide powder is used to heat the heater. On the metal electric heating pipe made of wire and metal pipe wall insulation, dozens to hundreds of heat sinks are installed in series. The upper part of the body has a hot air outlet, and the lower part of the shell is a cold air inlet. The working principle is: after the electric heating tube is energized, the heat sink is immediately heated, and the air between the two adjacent fins is heated, and the air passes through the shell after being heated. The upper hot air outlet naturally flows upward to the space, and the cold air is automatically supplemented by the cold air inlet at the lower part of the shell to form convection, which is called convection heating. If there is no heat supply between them, there will be no convection; in actual use, if the whole house is to be heated, take a family in the Yangtze River Basin as an example, a 16 square meter room uses 2KW of electricity and power for heating, and the monthly power consumption is about 1300 If the degree of two rooms and one living room will exceed 4000 degrees, it is generally unacceptable for the working class.

The disadvantage of the existing convection heater is that the convection is generated when the power is turned on, and the convection is stopped when the power is stopped, that is, the heat is not released into the space; the present patent application is to add a heat storage function to the existing product to realize the power is stopped. Heat is released into the air to reduce power consumption.

SUMMARY OF THE INVENTION

The purpose of the utility model is to improve the existing convection heater so that it has a convection function and a heat storage function.

The technical measures of the present invention are that the convection heat storage heater is composed of a casing 1, an electric heating tube 2, a heat storage plate 3 and a controller 4, and between the casing 1 and the electric heating tube 2, a heat storage plate 3 is installed; The hot plate is made of 0.5 to 10 mm sheet metal, the length and width are matched with the electric heating pipe, the electric heating pipe and the heat storage plate are mechanically fixed in the lower part of the casing, and the controller is installed on the casing; the casing 1 is Made of metal plate, the upper part is provided with a hot air outlet 1-1; the lower part has a cold air inlet 1-2; the electric heating pipe is a metal electric heating pipe, and there is an alloy electric heating wire in the metal pipe, and the electric heating wire and the heating wire are separated by magnesium oxide powder. The metal tube wall is insulated to make a dry-burning electric heating tube. The outside of the tube is equipped with a number of heat sinks 5 or a non-metallic shell electric heating tube is used, that is, a carbon fiber tube or a halogen tube or a naked electric heating wire that generates infrared radiation after being energized. There is a non-metallic tube outside The non-metallic shell electric heating tube is not equipped with heat sinks; the electric heating tube is installed horizontally in the shell to make a convection heat storage horizontal heater, or the shell 1, electric heating tube 2, and heat storage plate 3 are installed vertically Convection heat storage vertical heater is made; the shape of the vertical heater is round or square or special-shaped, and the electric heating tube adopts a non-metallic shell without radiating fins, and generates radiant heating after power-on.

The convection heat storage type heater is equipped with a heat storage plate 3, which can ensure that the electric heating pipe can realize convection and transport hot air when it is energized or not energized for a short time. Heat the heat storage plates 3 on both sides or around the electric heating pipe through heat sinks or through heat radiation, the heat storage plates will absorb and store heat, and release heat at the same time, so that the air between the heat storage plates and on both sides of the heat storage plates is heated Then it rises, flows out from the hot air outlet, and cold air enters from the lower part to generate convection; when the electric heating tube works continuously for a period of time, or the indoor temperature reaches the set value, the controller will automatically or artificially set it to make the electric heating tube work intermittently ; When the electric heating tube stops energizing, the heat stored in the heat storage plate will still maintain the heating of the air between the heat storage plates and on both sides of the heat storage plate and continuously generate convection; at this time, the temperature of the heat storage plate will gradually decrease, When the electric heating tube works next time, the supplemental heat will increase the temperature, and it will return to the temperature before the electric heating tube stops working, and it will continue to circulate.

The beneficial effect of the utility model is that the heat storage plate of the convection heat storage heater is a device for absorbing and storing heat. When the electric heating tube stops working and does not consume electricity, the heat storage plate will continue to release heat to heat the air, saving energy > 60%.

Description of drawings

Fig. 1 is the structure diagram of existing convection heater;

Figure 2 is a structural diagram of a convection heat storage heater;

Fig. 3 is the sectional view of Fig. 2 installed heat sink;

Fig. 4 is the sectional view of Fig. 2 installed non-metal electric heating pipe;

Figure 5 is a structural diagram of a vertical convection heat storage heater.

Detailed ways

The following description will be made with reference to the accompanying drawings. In the accompanying drawings, the casing 1, the hot air outlet 1-1, the cold air inlet 1-2, the electric heating pipe 2, the heat storage plate 3, the controller 4, and the heat sink 5 are shown.

Figure 1 is an existing convection heater, the figure is a skirting heater, and other convection heaters are similar in structure; this kind of heater generates convection when it is energized, and continuously sends hot air to the room. Convection is generated, and hot air is stopped.

Fig. 2 is the structure diagram of the convection heat storage heater. Compared with Fig. 1, the heat storage function is added. A heat storage plate 3 is installed between the shell and the electric heating pipe; Fig. 2 and Fig. 3 use a metal electric heating pipe. There are heat sinks 5 on it. The heat generated by the heat sinks after the power is turned on will heat the heat storage plate, and also heat the air between the heat storage plate and the electric heating pipe, and form convection; because the heat storage plate has a certain thickness Metal plate, (when the power of the electric heating tube is 1.-2.5KW, the thickness of 2-3 mm is more practical) When the electric heating tube is energized, the heat storage plate absorbs heat and heats the air to form convection, and the heat storage plate stores heat at the same time; if According to the setting or manual control, when the electric heating tube stops working, the heat stored in the heat storage plate is released, and the air on both sides of the heat storage plate continues to be heated to generate convection. The ratio can reach 2:4; for example, during normal heating time, when the room temperature reaches 20 °C, the electric heating tube is energized for 2 minutes and stopped for 2 minutes or 3 minutes; during sleep or work, in order to maintain the room temperature, the electric heating tube can work for 2 minutes and stop for 4 minutes. minutes; when the electric heating tube stops heating, the temperature of the heat storage plate will gradually decrease, but it still has the ability to heat the air to generate convection, and the heat energy will be supplemented when the electric heating tube is energized next time, and it will continue to circulate.

Figure 4 is a sectional view of a non-metallic electric heating pipe, which is suitable for other heaters except skirting heaters. The upper and lower parts and both ends of the heat storage plate 3 should be bent, but not closed to ensure that the hot air is sent out. Cold air enters smoothly, but infrared light cannot be exposed.

Figure 5 is a vertical convection heat storage heater. The vertical structure occupies a small area and has a large heat dissipation area. In this product, the electric heating tube is vertically arranged, and the heat sink cannot be installed on the tube wall, and a non-metallic shell electric heating tube must be used; The heating plate 3 can enclose the electric heating pipe, and can only use radiation heating due to the large space distance from the electric heating pipe; the outer shell 1 is a perforated plate or mesh plate, the hot air outlet is above, and the cold air inlet is below.

In this patent application, the heat storage plate 3 is added on the basis of the existing convection heater, but the heat storage plate cannot be regarded as the heat sink on the existing electric heating pipe, and the existing heat sink is the thickness of the aluminum sheet. It is only 0.5 and the area is very small, so it can only dissipate heat quickly, but cannot store heat; nor can the heat storage plate be equated with the shell, because after the heat storage plate absorbs heat, the temperature is very high, and the human body cannot touch it; between the shell and the electric heating tube The purpose of installing the heat storage plate is to make the electric heating tube stop being energized, the heat storage plate will continue the stored heat to make the air convection, so as to realize energy saving.

Claims (2)

1. The convection heat storage type heater is composed of a casing, an electric heating pipe, a heat storage plate and a controller, and it is characterized in that: between the casing and the electric heating pipe, a heat storage plate is installed, and the heat storage plate is made of sheet metal. The electric heating tube and the heat storage plate are mechanically fixed in the lower part of the shell; when the electric heating tube is energized, the heat storage plate will absorb and store the heat, and release the heat to realize convection; when the electric heating tube stops working, the inside of the heat storage plate The stored heat will continue to heat the air between the heat storage plates and on both sides of the heat storage plate, and generate convection continuously. At this time, the temperature of the heat storage plate will gradually decrease, and the heat will be supplemented by the next heating of the electric heating tube to increase the temperature. keep looping. 2 . The convection heat storage heater according to claim 1 , wherein the electric heating tube adopts a carbon fiber tube or a halogen tube or a quartz electric heating tube with a non-metallic casing to radiately heat the heat storage plate. 3 .

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