CN211952953U - Convection heat storage type heater - Google Patents

Abstract

The convection heat storage type heater comprises a shell, an electric heating pipe, a heat storage plate and a controller, wherein the electric heating pipe and the heat storage plate are mechanically fixed at the lower part of the shell; a heat storage plate is arranged between the shell and the electric heating tube, the heat storage plate is made of a metal plate with the thickness of 0.5-10 mm, and when the electric heating tube is electrified to work, the heat storage plate can absorb and store heat and release the heat to realize convection; when the electric heating pipe stops working, the heat stored in the heat storage plate can continuously heat the air between the heat storage plates and on the two surfaces of the heat storage plate, and convection is continuously generated.

Description

Convection heat storage type heater

Technical Field

The utility model relates to a heater mainly relates to convection current heat-retaining formula heater.

Background

Most of the existing heaters sold in the market are convection heaters, and a skirting line heater is taken as a representative; the heating device is simple in structure, one or two heating wires are arranged in the metal pipe, the heating wires and the metal pipe wall are insulated by magnesium oxide powder to form the metal electric heating pipe, dozens to hundreds of cooling fins are serially arranged on the metal electric heating pipe, two ends of the electric heating pipe are fixed on the lower part of the shell through non-metal supports, the outer sides of two sides of each cooling fin are provided with a shell, the upper part of the shell is provided with a hot air outlet, the lower part of the shell is provided with a cold air inlet, and the working principle is as follows: after the electric heating pipe is electrified to work, the radiating fins are heated immediately, air between two adjacent radiating fins is heated, the air naturally flows upwards to the space through a hot air outlet at the upper part of the shell after being heated, cold air is automatically supplemented by a cold air inlet at the lower part of the shell to form convection, the convection is called as convection heating, the structure is electrified to generate convection, the electrification is stopped, the heating is not carried out, no heat is supplied between the radiating fins, and the convection is not generated; in practical use, if the whole house is required to be heated, taking a family in a Yangtze river basin as an example, one square meter room with 16 square meters is used, the electricity consumption is 2KW, the power consumption is 1300 ℃ every month, if two rooms and one living room need to exceed 4000 ℃, the general salary level is unacceptable.

The existing convection type heater has the defects that convection is generated when the heater is electrified, and the convection is stopped when the heater is not electrified, namely, heat is not released to a space; this patent application is when will increasing the heat-retaining function to current product and realize stopping the circular telegram, in order constantly to release the heat in the air in succession to reduce power consumption.

Disclosure of Invention

The utility model aims at improving the prior convection heater, so that the convection heater has the convection function and the heat storage function.

The technical measure of the utility model is that the convection heat storage heater comprises a shell 1, an electric heating tube 2, a heat storage plate 3 and a controller 4, wherein the heat storage plate 3 is arranged between the shell 1 and the electric heating tube 2; the heat storage plate is made of a metal plate with the thickness of 0.5-10 mm, the length and the width of the heat storage plate are matched with those of the electric heating pipe, the electric heating pipe and the heat storage plate are mechanically fixed at the lower part in the shell, and the controller is arranged on the shell; the shell 1 is made of metal plate, and the upper part of the shell is provided with a hot air outlet 1-1; the lower part is provided with a cold air inlet 1-2; the electrothermal tube is a metal electrothermal tube, an alloy electric heating wire is arranged in the metal tube, the electric heating wire and the wall of the metal tube are insulated by magnesium oxide powder to form a dry-burning electrothermal tube, a plurality of radiating fins 5 are serially arranged outside the tube or the electrothermal tube with a non-metal shell is adopted, namely a carbon fiber tube or a halogen tube which generates infrared radiation after being electrified or a quartz tube with a non-metal tube outside the naked electric heating wire; no radiating fin is arranged outside the electric heating tube with the non-metal shell; an electric heating tube is horizontally arranged in the shell to form a convection heat storage type horizontal heater, or the shell 1, the electric heating tube 2 and the heat storage plate 3 are vertically arranged to form a convection heat storage type vertical heater; the vertical heater is circular or square or different in shape, and the electrothermal tube adopts a non-metal shell, does not install a radiating fin, and generates radiant heating after being electrified.

Convection current heat-retaining formula heater is owing to be equipped with heat storage plate 3, can ensure that the electrothermal tube circular telegram or when short-term not circular telegram, can both realize the convection current, carries hot-air, and the operating procedure is: when the electric heating tube is electrified to work, the generated heat immediately heats the heat storage plates 3 at two sides or the periphery of the electric heating tube through the radiating fins or through heat radiation, the heat storage plates can absorb and store the heat and release the heat simultaneously, so that the air between the heat storage plates and at two sides of the heat storage plates rises after being heated and flows out of the hot air outlet, and cold air enters from the lower part to generate convection; when the electric heating tube continuously works for a period of time or the indoor temperature reaches a set value, the controller automatically or manually sets the electric heating tube to work intermittently; when the electric heating pipe is not electrified, the heat stored in the heat storage plate can still maintain the heating of the air between the heat storage plates and at the two sides of the heat storage plate and generate convection continuously; at the moment, the temperature of the heat storage plate is gradually reduced, when the electric heating tube works next time, the heat is supplemented to increase the temperature, the temperature is recovered to the temperature before the electric heating tube stops working, and the circulation is continued.

The beneficial effects of the utility model are that, the heat storage board of convection heat storage formula heater is the device that absorbs and store the heat, and when the electrothermal tube stop work, when not power consumptive, the heat storage board can continue release heat heated air, and energy-conserving efficiency > 60%.

Drawings

Fig. 1 is a structural view of a conventional convection type heater;

fig. 2 is a structural view of a convection heat storage type heater;

FIG. 3 is a cross-sectional view of the heat sink of FIG. 2;

FIG. 4 is a cross-sectional view of the non-metallic electrical heating tube of FIG. 2;

fig. 5 is a structural view of a vertical convection heat storage type heater.

Detailed Description

The following description is made with reference to the accompanying drawings, in which a housing 1, a hot air outlet 1-1, a cold air inlet 1-2, an electric heating tube 2, a heat storage plate 3, a controller 4, and a heat sink 5 are shown.

FIG. 1 is a prior art convection heater, shown as a skirting line heater, and similar in construction to other convection heaters; the heater generates convection when being electrified, continuously supplies hot air to a room, does not generate convection when being electrified, and stops supplying the hot air.

Fig. 2 is a structural view of the convection heat storage type heater, compared with fig. 1, the heat storage function is added, and a heat storage plate 3 is installed between the outer shell and the electric heating tube; fig. 2 and 3 show a metal electric heating tube, which has heat dissipation fins 5, and the heat generated by the heat dissipation fins heats the heat storage plate and also heats the air between the heat storage plate and the electric heating tube to form convection; because the heat storage plate is a metal plate with a certain thickness (the thickness is 2-3 mm when the power of the electric heating tube is 1-2.5 KW), when the electric heating tube is electrified to enable the heat storage plate to absorb heat to heat air and form convection, the heat storage plate stores heat simultaneously; if the electric heating pipe stops working according to setting or manual control, the heat stored in the heat storage plate is released, the air at the two sides of the heat storage plate is continuously heated, convection is generated, and the experiment proves that the ratio of the heating time to the heating stopping time of the electric heating pipe can reach 2: 4; for example, in normal heating time, when the room temperature reaches 20 ℃, the electric heating pipe is electrified for 2 minutes, and is stopped for 2 minutes or 3 minutes; sleeping or working time, the electric heating tube can work for 2 minutes and stop for 4 minutes in order to keep room temperature; when the electric heating tube stops heating, the temperature of the heat storage plate is gradually reduced, but the heat storage plate still has the capability of heating air to generate convection, and heat energy is supplemented when the electric heating tube is electrified next time, and the circulation is continuous.

Fig. 4 is a sectional view of a non-metal electric heating tube, which is suitable for other heaters except a skirting line heater, the upper part, the lower part and two ends of the heat storage plate 3 are bent but cannot be closed, so that hot air is sent out, cold air enters smoothly but infrared light cannot be exposed.

FIG. 5 is a vertical convection heat storage heater with a vertical structure occupying a small area and having a large heat dissipation area; in the product, the electric heating tube is vertically arranged, the tube wall can not be provided with the radiating fin, and the electric heating tube with a non-metal shell is required to be adopted; the heat storage plate 3 can surround the electric heating pipe, and only adopts radiation heating due to the larger space distance between the heat storage plate and the electric heating pipe; the shell 1 is a porous plate or a mesh plate, the hot air outlet is arranged on the upper part, and the cold air inlet is arranged on the lower part.

According to the application, the heat storage plate 3 is additionally arranged on the basis of the existing convection type heater, but the heat storage plate cannot be regarded as the heat radiating fin on the existing electric heating tube, the thickness of the existing heat radiating fin is only 0.5, the area is small, only quick heat radiation can be realized, and heat storage cannot be realized; the heat storage plate cannot be equal to the shell, because the temperature of the heat storage plate is very high after the heat storage plate absorbs heat, a human body cannot contact the heat storage plate; the purpose of additionally arranging the heat storage plate between the shell and the electric heating pipe is to enable the heat storage plate to continuously enable the stored heat to generate convection for air when the electric heating pipe is not electrified, so that energy conservation is realized.

Claims (2)

1. Convection current heat-retaining formula heater comprises shell, electrothermal tube, heat storage board, controller, its characterized in that: a heat storage plate is arranged between the shell and the electric heating tube, and is made of metal plates; the electric heating pipe and the heat storage plate are mechanically fixed at the lower part in the shell; when the electric heating pipe is electrified to work, the heat storage plate can absorb and store heat, and meanwhile, the heat is released to realize convection; when the electric heating tube stops working, the heat stored in the heat storage plate can continuously heat the air between the heat storage plates and on the two sides of the heat storage plate and generate convection continuously, at the moment, the temperature of the heat storage plate can be gradually reduced, and the heat is supplemented to increase the temperature when the electric heating tube is heated next time, and the circulation is continuous.

2. The convection heat storage heater of claim 1, wherein: the electrothermal tube adopts a carbon fiber tube or a halogen tube or a quartz electrothermal tube with a non-metal shell to radiate and heat the heat storage plate.

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