Solid heat storage furnace

Abstract

The utility model relates to the technical field of heat energy storage, in particular to a solid heat storage furnace. The heat storage furnace comprises a furnace shell and a furnace cover at the top, a furnace lining is built in the furnace shell for heat preservation, the heat storage furnace further comprises electric heating pipes and honeycomb heat accumulators, and the honeycomb heat accumulators and the electric heating pipes are arranged in the furnace shell and are arranged in a staggered mode according to layers. And an air inlet gate and an air outlet gate are respectively arranged at the air inlet and the air outlet at the two ends of the furnace shell. According to the product, valley electricity at night is used for heating the electric heating pipe, the honeycomb heat storage body in the heat storage furnace absorbs and stores heat emitted by the electric heating pipe, and the heat is released and utilized in the daytime, so that conversion use of peak and valley electricity prices is realized, and the energy cost is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of thermal energy storage, in particular to a solid heat storage furnace. Background Art

[0002] With the reform of the power system and the gradual opening of the power market, energy storage technology can help the power grid achieve peak load regulation, frequency regulation and other functions, and improve the safety and stability of the power grid. In addition, energy storage technology can also help users optimize the use of peak and valley electricity prices and reduce electricity costs. Utility Model Content

[0003] 1. Technical issues to be resolved

[0004] In view of the deficiencies in the prior art, the utility model provides a solid heat storage furnace capable of storing heat generated by valley electricity prices.

[0005] (II) Technical solution

[0006] A solid heat storage furnace comprises a furnace shell and a furnace cover on the top. The furnace shell is internally built with a furnace lining for heat preservation. Furthermore, it also comprises an electric heating tube and a honeycomb heat storage body. The honeycomb heat storage body and the electric heating tube are placed in the furnace shell, and the two are arranged alternately in layers. An air inlet gate and an air outlet gate are respectively provided at the air inlet and the air outlet at both ends of the furnace shell.

[0007] Preferably, an air inlet cylinder and an air outlet cylinder are respectively provided on the outer sides of the air inlet gate and the air outlet gate.

[0008] Preferably, an air inlet guide plate is provided in the air inlet gate on the side facing the honeycomb heat storage body.

[0009] Preferably, a clamping device is further included, and the four corners of the furnace cover are covered on the furnace shell through the clamping device.

[0010] Preferably, a side wall door is provided on the side of the furnace shell.

[0011] Preferably, both ends of each electric heating tube are provided with insulating plugs.

[0012] Preferably, it also includes a temperature measuring thermocouple, and a temperature measuring thermocouple is arranged above every two rows of electric heating tubes.

[0013] (III) Beneficial effects

[0014] Compared with the prior art, the utility model provides a new type of solid heat storage furnace. This product uses valley electricity at night to heat the electric heating tube. The honeycomb heat storage body in the heat storage furnace absorbs the heat emitted by the electric heating tube and stores it, and then releases the heat for use during the day, thereby realizing the conversion of peak and valley electricity prices and saving energy costs. Especially in the field of industrial electric furnaces and heat treatment, the stored heat can be used directly during the day, greatly reducing costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is the main cross-sectional view of this product;

[0016] Figure 2 for Figure 1 A side cross-sectional view of

[0017] Figure 3 for Figure 1 Horizontal cross-sectional view.

[0018] Explanation of reference numbers: 1 furnace cover, 2 pressing device, 3 furnace shell, 4 electric heating tube, 5 furnace lining, 6 honeycomb heat storage body, 7 side wall door, 8 insulating plug, 9 air inlet cylinder, 10 air inlet gate, 11 air inlet guide plate, 12 temperature measuring thermocouple, 13 air outlet cylinder, 14 air outlet gate, air inlet a, air outlet b. DETAILED DESCRIPTION

[0019] The present invention is further described in detail below in conjunction with the accompanying drawings, wherein the same components are represented by the same figure numerals. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower", "bottom surface" and "top surface" used in the following description refer to directions in the drawings, and the words "inside" and "outside" refer to directions toward or away from the geometric center of a specific component, respectively.

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] Design concept: Design a solid thermal energy storage device that stores thermal energy at night through electric heating and then effectively utilizes the thermal energy during the day.

[0022] Example:

[0023] like Figure 1-Figure 3As shown, the technical solution provided by the utility model is a solid heat storage furnace, including a furnace shell 3 and a furnace cover 1 on the top, a furnace lining 5 is built inside the furnace shell 3 for heat preservation, and further includes an electric heating tube 4 and a honeycomb heat storage body 6. The honeycomb heat storage body 6 and the electric heating tube 4 are placed in the furnace shell 3, and the two are placed alternately in layers. Both ends of each electric heating tube 4 are provided with an insulating plug 8. The honeycomb heat storage body 6 is a material containing magnesium oxide and other components with large heat storage capacity; the air inlet a and the air outlet b at both ends of the furnace shell 3 are respectively provided with an air inlet gate 10 and an air outlet gate 14, wherein the air inlet gate 10 and the air outlet gate 14 are respectively provided with an air inlet cylinder 9 and an air outlet cylinder 13 on the outside. An air inlet guide plate 11 is provided in the air inlet gate 10 on the side facing the honeycomb heat storage body 6.

[0024] This embodiment further includes a clamping device 2, through which the four corners of the furnace cover 1 are covered on the furnace shell 3, which is convenient for opening from the top for disassembly and maintenance. The clamping device 2 is specifically a locking bolt. A side wall door 7 is provided on the side of the furnace shell 3, which is convenient for opening from the side for disassembly and maintenance.

[0025] This embodiment further includes a temperature measuring thermocouple 12 . A temperature measuring thermocouple 12 is disposed above every two rows of electric heating tubes 4 to detect the temperature inside the furnace shell 3 in real time.

[0026] Working principle and process:

[0027] The furnace shell 3 of this product is built with furnace lining 5 insulation materials, leaving the middle furnace space to place the honeycomb heat storage body 6 and the electric heating tube 4. The two are placed alternately, the electric heating tube 4 is hollowed out, and stacked up layer by layer. The distributed arrangement of the electric heating tube 4 increases the uniform and stable heating of the honeycomb heat storage body 6. A temperature measuring thermocouple 12 is also set above every two rows of electric heating tubes 4 to control the temperature of each partition and improve the temperature control accuracy. The honeycomb heat storage body 6 is composed of many small honeycomb pores in the direction of the air inlet and outlet, through which air can pass; the top of the furnace shell 3 is a movable furnace cover 1, which is convenient for the inspection and replacement of the honeycomb heat storage body 6 and the electric heating tube 4 in the furnace; the side of the furnace shell 3 is also provided with a side wall door 7, which can be opened separately to install and wire the electric heating tube 4, and the fully enclosed structure increases the beauty of the equipment.

[0028] This product is provided with air inlet a and air outlet b in front and behind the furnace shell 3, both of which are provided with gates and cylinders. When storing heat during valley electricity at night, the gates of the air inlet and outlet are closed to prevent heat from escaping and being lost. During peak electricity during the day, cold air blows in from the air inlet gate 10, passes through the air inlet guide plate 11, and blows evenly to the high-temperature honeycomb heat storage body 6. The cold air passes through the small gaps in the middle of a large number of honeycomb heat storage bodies 6, and then exchanges heat with the honeycomb heat storage body 6 to become high-temperature hot air, which is blown out from the air outlet gate 14, converting low-cost electricity into high-temperature hot air of thermal energy for use by subsequent equipment, thereby achieving the conversion of peak and valley electricity prices and saving energy costs.

[0029] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A solid heat storage furnace, comprising a furnace shell and a furnace cover on the top, and a furnace lining is built inside the furnace shell for heat preservation. Features: It also includes an electric heating tube and a honeycomb heat storage body. The honeycomb heat storage body and the electric heating tube are placed in the furnace shell, and the two are placed alternately in layers; an air inlet gate and an air outlet gate are respectively provided at the air inlet and air outlet at both ends of the furnace shell.

2. A solid heat storage furnace according to claim 1, Features: An air inlet cylinder and an air outlet cylinder are respectively arranged on the outer sides of the air inlet gate and the air outlet gate.

3. A solid heat storage furnace according to claim 1, Features: An air inlet guide plate is arranged in the air inlet gate on the side facing the honeycomb heat storage body.

4. A solid heat storage furnace according to claim 1, Features: It also includes a clamping device, and the four corners of the furnace cover are covered on the furnace shell through the clamping device.

5. A solid heat storage furnace according to claim 1, Features: A side wall door is arranged on the side of the furnace shell.

6. A solid heat storage furnace according to claim 1, Features: Both ends of each electric heating tube are provided with insulating plugs.

7. The solid heat storage furnace according to claim 1, Features: It also includes a temperature measuring thermocouple, and a temperature measuring thermocouple is arranged above every two rows of electric heating tubes.

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