CN204881171U - Clean high -efficient phase transition heat storage medium melting furnace - Google Patents

Abstract

The utility model relates to the technical field of energy storage devices, in particular to a clean and efficient phase-change heat storage medium melting furnace, comprising: a heat preservation cylinder, the heat preservation cylinder includes a melting furnace shell, an inner pot of a melting furnace melting pool, and is arranged on the melting furnace shell and The insulation layer between the inner pots of the molten pool of the melting furnace, the insulating cylinder has a filling port for filling the phase change heat storage medium, and the inner pot of the melting furnace molten pool is provided with a heating pipe for heating the phase change heat storage medium, wherein, The heating tube is an electric heating tube, no need to set a burner, the heating tube is directly inserted into the inner pot of the melting furnace, and the high temperature generated by the heating tube is directly transmitted to the phase change heat storage medium, which reduces the overall size and cost of the equipment and makes the structure more compact , reduce heat loss, and balance the heating speed. At the same time, the furnace body does not need to be preheated before operation, which reduces energy consumption and system operating costs.

Description

A clean and efficient phase change heat storage medium melting furnace

technical field

The utility model relates to the technical field of energy storage devices, in particular to a clean and efficient phase-change heat storage medium melting furnace.

Background technique

Energy storage is a key and indispensable link in a solar thermal power generation system. The energy storage medium is mostly a phase-change heat storage medium, which absorbs and releases heat through the phase change of the heat storage medium, thereby realizing the heat storage function.

In a commercially operated photothermal power station, the amount of phase change heat storage medium used is generally about 30,000 tons or more, and the melting capacity of the melting furnace is generally more than 720 tons per day. The melting speed is fast, efficient and safe. The furnace has become a must for the construction of solar thermal power plants.

Traditional phase change medium melting devices need to use gas and heavy oil as fuel, which has low thermal efficiency, pollutes the environment, complex system, large equipment volume, high manufacturing and use costs; preheating of the furnace body is required before each operation, and the cycle is long , high energy consumption.

Utility model content

The purpose of the utility model is to further improve the heat utilization rate of the phase change heat storage medium and the service life of the phase change heat storage medium melting device. The utility model provides a clean and efficient phase change heat storage medium melting furnace. The heating tube does not need to be equipped with a burner. The heating tube is directly inserted into the inner pot of the melting furnace, and the high temperature generated by the heating tube is directly transmitted to the phase-change heat storage medium, which reduces the overall size and cost of the equipment, and has a more compact structure and reduces heat loss. , the heating speed is balanced, and at the same time, the furnace body does not need to be preheated before operation, which reduces energy consumption and system operating costs.

The technical scheme that the utility model solves its technical problem adopts is:

A clean and efficient phase-change heat storage medium melting furnace, comprising: an insulating cylinder, the insulating cylinder including a melting furnace shell, a melting furnace melting pool inner pot, and an insulating layer arranged between the melting furnace shell and the melting furnace melting pool inner pot , the heat preservation cylinder has a filling port for filling the phase-change heat storage medium, and the inner pot of the melting pool of the melting furnace is provided with a heating tube for heating the phase-change heat storage medium, wherein the heating tube is an electric Heating pipe.

Specifically, the plurality of heating tubes are evenly arranged in the inner pot of the melting pool of the melting furnace.

Specifically, the heating pipe is an annular pipe or a spiral coil arranged in a ring.

Specifically, the insulation layer is rock wool, aluminum silicate wool or silica aerogel, and the inner pot of the melting furnace is made of boiler steel.

The beneficial effects of the utility model are: the utility model provides a clean and efficient phase change heat storage medium melting furnace, the heating tube is an electric heating tube, no burner is required, the heating tube is directly inserted into the inner pot of the melting furnace melting pool, The high temperature generated by the heating tube is directly transmitted to the phase-change heat storage medium, which reduces the overall size and cost of the equipment. The structure is more compact, the heat loss is reduced, and the heating speed is balanced. energy, reducing system operating costs; several heating tubes are evenly arranged in the inner pot of the melting furnace pool, heating evenly; the insulation layer is rock wool, aluminum silicate cotton or silica airgel, and the material of the inner pot of the melting furnace is Boiler steel, good effect, low cost, wide versatility.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the utility model is further described.

Fig. 1 is the structural representation of the utility model;

FIG. 2 is a top view of FIG. 1 .

In the figure: 11. Melting furnace shell, 12. Melting furnace molten pool inner pot, 13. Insulation layer, 2. Filling port, 3. Heating pipe.

Detailed ways

Now in conjunction with accompanying drawing, the utility model is described in further detail. These drawings are all simplified schematic diagrams, and only schematically illustrate the basic structure of the utility model, so they only show the configurations related to the utility model.

As shown in Figures 1 and 2, a clean and efficient phase-change heat storage medium melting furnace includes: an insulation cylinder, the insulation cylinder includes a melting furnace shell 11, a melting furnace melting pool inner pot 12, and is arranged on the melting furnace shell 11 and The insulation layer 13 between the inner pot 12 of the melting furnace melting pool, the insulating cylinder has a filling port 2 for filling the phase change heat storage medium, and the inner pot 12 of the melting furnace melting pool is provided with a heating device for heating the phase change heat storage medium Tubes 3, wherein the heating tubes 3 are electric heating tubes, and several heating tubes 3 are evenly arranged in the inner pot 12 of the melting furnace melting pool.

Specifically, the heating pipe 3 is an annular pipe or a spiral coil arranged in a ring.

Specifically, the insulation layer 13 is rock wool, aluminum silicate wool or silica aerogel, and the inner pot 12 of the melting furnace bath is made of boiler steel.

The solid phase change heat storage medium is directly injected into the inner pot 12 of the melting furnace melting pool through the filling port 2, and the inner pot 12 of the melting furnace melting pool is covered with the heating tube 3, and the high temperature generated by the heating tube 3 is directly transferred to the solid phase change heat storage medium .

Inspired by the above ideal embodiment according to the utility model, through the above description content, relevant staff can completely make various changes and modifications within the scope of not deviating from the technical idea of the utility model. The technical scope of this utility model is not limited to the content in the description, but must be determined according to the scope of the claims.

Claims (4)

1. A clean and efficient phase-change heat storage medium melting furnace, characterized in that it comprises: a heat preservation cylinder, the heat preservation cylinder comprising a melting furnace shell (11), a melting furnace melting pool inner pot (12) and being arranged on the melting furnace shell (11) and the insulation layer (13) between the inner pot (12) of the melting furnace melting pool. The pot (12) is provided with a heating tube (3) for heating the phase change heat storage medium, wherein the heating tube (3) is an electric heating tube. 2. A clean and efficient phase-change heat storage medium melting furnace according to claim 1, characterized in that: the plurality of heating pipes (3) are evenly arranged in the inner pot (12) of the melting pool of the melting furnace. 3. A clean and efficient phase-change heat storage medium melting furnace according to claim 1, characterized in that: the heating pipe (3) is an annular pipe or a spiral coil arranged in a ring. 4. A clean and efficient phase change heat storage medium melting furnace as claimed in claim 1, characterized in that: the insulation layer (13) is rock wool, aluminum silicate wool or silica airgel, and the The material of the pot (12) in the molten pool of the melting furnace is boiler steel.