CN216745644U

CN216745644U - Novel fused salt electric furnace

Info

Publication number: CN216745644U
Application number: CN202220054443.9U
Authority: CN
Inventors: 刘军; 陈以波; 杜晓静
Original assignee: Shaanxi Chengda Industrial Furnace Manufacturing Co ltd
Current assignee: Shaanxi Chengda Industrial Furnace Manufacturing Co ltd
Priority date: 2022-01-11
Filing date: 2022-01-11
Publication date: 2022-06-14
Anticipated expiration: 2032-01-11

Abstract

The utility model discloses a novel molten salt electric furnace, which comprises a molten salt heat storage tank assembly and an electromagnetic valve, wherein an electric heating pipe is arranged on the inner wall of the molten salt heat storage tank assembly for storing heat, a temperature instrument and a molten salt pump are sequentially arranged on one side of the outer portion of the molten salt heat storage tank assembly from top to bottom, a heat exchange assembly for exchanging heat is connected below the molten salt pump, the heat exchange assembly comprises a heat exchanger, a corrugated pipe and a baffle plate, the corrugated pipe is arranged on the inner wall of the heat exchanger, the baffle plate is fixed on the outer portion of the corrugated pipe, a sub-pumping pipe is arranged below the heat exchange assembly, and a liquid outlet pipe is arranged on the outer portion of the sub-pumping pipe. This novel fused salt electric stove compares with current ordinary fused salt electric stove, and a plurality of temperature meters can carry out the layering temperature measurement to the internal liquid fused salt of inner tank, opens the solenoid valve on the corresponding drain pipe according to the temperature demand, realizes the liquid fused salt of layering extraction for this novel fused salt electric stove possesses the layering extraction function, can satisfy different operating modes.

Description

Novel fused salt electric furnace

Technical Field

The utility model relates to the technical field of molten salt electric furnaces, in particular to a novel molten salt electric furnace.

Background

The novel molten salt electric furnace simply utilizes midnight trough time period electric power to heat the heat storage medium to a certain temperature, simultaneously also satisfies trough time period heat supply load, leans on the equipment that the heat storage medium residual heat that is heated supplies heat in flat electric period and peak electric period.

The liquid fused salt can not be extracted in a layered mode by the existing fused salt electric furnace, the liquid fused salt with lower temperature can not be subjected to high-efficiency heat exchange, the use requirements of people can not be well met, and technical innovation is carried out on the basis of the existing fused salt electric furnace according to the above conditions.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a novel molten salt electric furnace to solve the problems in the background technology.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a novel fused salt electric stove, includes fused salt heat accumulation jar subassembly and solenoid valve for the heat accumulation the inner wall of fused salt heat accumulation jar subassembly is provided with electric heating pipe, and outside one side of fused salt heat accumulation jar subassembly from last temperature appearance and the molten salt pump of down having set gradually, the below of molten salt pump is connected with the heat exchange assemblies who is used for the heat transfer, and heat exchange assemblies includes heat exchanger, bellows and baffling board, the inner wall of heat exchanger is provided with the bellows, and the external fixation of bellows has the baffling board, the branch pump line is installed to heat exchange assemblies's below, and the outside of branch pump line is provided with the drain pipe, the solenoid valve is installed in the outside of drain pipe, the top of molten salt pump is provided with the hydrops case, and the top of hydrops case is connected with liquid return pipe.

Further, fused salt heat accumulation jar subassembly includes the outer jar of body, keeps warm cotton and the inner tank body, and the inner wall laminating of the outer jar of body has the heat preservation cotton, the cotton inner wall of heat preservation is provided with the inner tank body.

Furthermore, the inner surface of the outer tank body is attached to the outer surface of the heat insulation cotton, and the outer tank body is fixedly connected with the inner tank body.

Furthermore, the electric heating tubes are equidistantly distributed along the horizontal direction of the inner tank body, and the inner tank body is cylindrical.

Furthermore, the central axis of the corrugated pipe coincides with the central axis of the heat exchanger, and the vertical section of the corrugated pipe is corrugated.

Furthermore, the liquid outlet pipe is communicated with the heat exchanger through the sub-pumping pipe, and the liquid outlet pipe is distributed at equal intervals along the vertical direction of the sub-pumping pipe.

Furthermore, the liquid accumulating box is communicated with the inner tank body through a liquid return pipe, and the liquid accumulating box is cylindrical.

Compared with the prior art, the utility model has the beneficial effects that: the novel molten salt electric furnace has a good heat insulation structure, the heat efficiency is improved, the novel molten salt electric furnace has a high-efficiency heat exchange structure, heat exchange can be carried out with high efficiency, the novel molten salt electric furnace has a layered extraction function, and different working conditions can be met;

1. according to the novel molten salt electric furnace, the outer tank body, the heat insulation cotton and the inner tank body are arranged, the outer tank body and the inner tank body are welded to form a hollow double-layer shell, good heat insulation and heat preservation effects are achieved, the heat insulation cotton is laid in the formed hollow layer, the heat insulation effect is enhanced, the novel molten salt electric furnace has a good heat insulation structure, and the heat efficiency is improved;

2. according to the utility model, through the arrangement of the heat exchanger, the corrugated pipe and the baffle plate, the cross section of a flow channel of the corrugated pipe continuously changes suddenly, the flow speed and the flow direction of fluid in the pipe are continuously changed, the turbulence intensity of the fluid is greatly improved, the laminar flow of the bottom layer is damaged, the flow state of a fluid boundary layer is changed, the baffle plate can change the flow direction of liquid molten salt, and a liquid molten salt flow channel is elongated, so that the convection heat transfer coefficient inside and outside the pipe is improved, and the novel molten salt electric furnace has a high-efficiency heat exchange structure and can exchange heat with higher efficiency;

3. according to the utility model, through the arrangement of the separate pumping pipe, the liquid outlet pipe, the electromagnetic valves and the temperature meters, the plurality of temperature meters can carry out layered temperature measurement on the liquid molten salt in the inner tank body, and the electromagnetic valves on the corresponding liquid outlet pipes are opened according to temperature requirements, so that the layered pumping of the liquid molten salt is realized, the novel molten salt electric furnace has a layered pumping function, and different working conditions can be met.

Drawings

FIG. 1 is a schematic sectional view of the front view of the present invention;

FIG. 2 is a schematic front view of the present invention;

FIG. 3 is a schematic view of a heat exchange assembly according to the present invention in a cross-sectional enlarged view.

In the figure: 1. a molten salt heat storage tank assembly; 101. an outer tank body; 102. heat preservation cotton; 103. an inner tank body; 2. an electric heating tube; 3. a molten salt pump; 4. a heat exchange assembly; 401. a heat exchanger; 402. a bellows; 403. a baffle plate; 5. a separate pumping pipe; 6. a liquid outlet pipe; 7. an electromagnetic valve; 8. a temperature meter; 9. a liquid accumulation box; 10. a liquid return pipe.

Detailed Description

As shown in fig. 1-2, a novel molten salt electric furnace comprises a molten salt heat storage tank assembly 1 and an electromagnetic valve 7, wherein an electric heating pipe 2 is arranged on the inner wall of the molten salt heat storage tank assembly 1 for heat storage, a temperature meter 8 and a molten salt pump 3 are sequentially arranged on one side of the outside of the molten salt heat storage tank assembly 1 from top to bottom, the molten salt heat storage tank assembly 1 comprises an outer tank body 101, heat preservation cotton 102 and an inner tank body 103, the heat preservation cotton 102 is attached to the inner wall of the outer tank body 101, the inner wall of the heat preservation cotton 102 is provided with the inner tank body 103, the inner surface of the outer tank body 101 is attached to the outer surface of the heat preservation cotton 102, the outer tank body 101 is fixedly connected with the inner tank body 103, the electric heating pipes 2 are equidistantly distributed along the horizontal direction of the inner tank body 103, the inner tank body 103 is cylindrical, the outer tank body 101 is welded with the inner tank body 103 to form a hollow double-layer shell with good heat insulation and heat preservation effects, and the heat preservation cotton 102 is laid in the formed hollow layer, the novel molten salt electric furnace has good heat insulation structure and improved heat efficiency by enhancing the heat insulation effect, the branch extraction pipe 5 is arranged below the heat exchange component 4, and the liquid outlet pipe 6 is arranged outside the sub-pumping pipe 5, the liquid outlet pipe 6 is communicated with the heat exchanger 401 through the sub-pumping pipe 5, the liquid outlet pipes 6 are equidistantly distributed along the vertical direction of the sub-pumping pipes 5, the electromagnetic valves 7 are arranged outside the liquid outlet pipes 6, the plurality of thermometers 8 can carry out layered temperature measurement on the liquid molten salt in the inner tank body 103, the electromagnetic valve 7 on the corresponding liquid outlet pipe 6 is opened according to the temperature requirement to realize the layered extraction of the liquid molten salt, so that the novel molten salt electric furnace has the function of layered extraction and can meet different working conditions, the liquid accumulation box 9 is arranged above the molten salt pump 3, and the top of hydrops case 9 is connected with back liquid pipe 10, and hydrops case 9 link up each other with the inner tank body 103 through returning liquid pipe 10, and the shape of hydrops case 9 is cylindrical.

As shown in fig. 3, a heat exchange assembly 4 for exchanging heat is connected below the molten salt pump 3, and the heat exchange assembly 4 comprises a heat exchanger 401, a corrugated pipe 402 and a baffle plate 403, the inner wall of the heat exchanger 401 is provided with the corrugated pipe 402, a baffle plate 403 is fixed outside the corrugated pipe 402, the central axis of the corrugated pipe 402 is coincident with the central axis of the heat exchanger 401, and the vertical section of the corrugated pipe 402 is corrugated, the cross section of the flow channel of the corrugated pipe 402 changes continuously, the flow velocity and the flow direction of the fluid in the pipe change continuously, the turbulence intensity of the fluid is greatly improved, the laminar flow of the bottom layer is damaged, the flow state of the fluid boundary layer changes, the baffle plate 403 can change the flow direction of the liquid molten salt, the flow channel of the liquid molten salt is elongated, thereby improve inside and outside convection heat transfer coefficient of pipe for this novel fused salt electric stove possesses high-efficient heat transfer structure, can the higher heat transfer that carries on of efficiency.

The working principle is as follows: when the novel molten salt electric furnace is used, firstly, during heat storage, the electric heating pipe 2 is started, when the average temperature of the molten salt in the inner tank 103 gradually rises to a proper temperature, the electric heating pipe 2 is closed, the outer tank 101 and the inner tank 103 are welded to form a hollow double-layer shell, good heat insulation and heat preservation effects are achieved, heat preservation cotton 102 is laid in the formed hollow layer to enhance the heat preservation effect, the heat storage process is stopped, when heat is released, the molten salt pump 3 is started, the plurality of temperature meters 8 can carry out layered temperature measurement on the liquid molten salt in the inner tank 103, the electromagnetic valve 7 on the corresponding liquid outlet pipe 6 is started according to the temperature requirement to realize layered extraction of the liquid molten salt, the liquid molten salt in the inner tank 103 is extracted to enter the heat exchanger 401 through the liquid outlet pipe 6 and the sub-extraction pipe 5 in sequence, cold heat exchange fluid enters from the inlet above one side of the heat exchanger 401 to exchange heat with the molten salt, and after heat exchange, cold fused salt loops through hydrops case 9 and liquid return pipe 10 and is sent to inner tank body 103, hot heat transfer fluid flows out from one side below export of heat exchanger 401 simultaneously, bellows 402 flow channel's cross section is continuous sudden change, intraductal fluid velocity of flow and flow direction constantly change, improve fluidic torrent intensity by a wide margin, destroy the laminar flow of bottom, make the flow state of fluid boundary layer change, baffling board 403 then can change the flow direction of liquid fused salt, lengthen liquid fused salt runner, thereby improve the inside and outside convection heat transfer coefficient of pipe, this is exactly this novel fused salt electric furnace's theory of operation.

Claims

1. A novel molten salt electric furnace comprises a molten salt heat storage tank assembly (1) and an electromagnetic valve (7), and is characterized in that an electric heating pipe (2) is arranged on the inner wall of the molten salt heat storage tank assembly (1) for storing heat, a temperature meter (8) and a molten salt pump (3) are sequentially arranged on one side of the outside of the molten salt heat storage tank assembly (1) from top to bottom, a heat exchange assembly (4) for exchanging heat is connected below the molten salt pump (3), the heat exchange assembly (4) comprises a heat exchanger (401), a corrugated pipe (402) and a baffle plate (403), the corrugated pipe (402) is arranged on the inner wall of the heat exchanger (401), the baffle plate (403) is fixed on the outside of the corrugated pipe (402), a sub-pumping pipe (5) is arranged below the heat exchange assembly (4), a liquid outlet pipe (6) is arranged on the outside of the sub-pumping pipe (5), the electromagnetic valve (7) is installed on the outside of the liquid outlet pipe (6), a liquid accumulation box (9) is arranged above the molten salt pump (3), and a liquid return pipe (10) is connected above the liquid accumulation box (9).

2. A novel molten salt electric furnace as claimed in claim 1, characterized in that the molten salt heat storage tank assembly (1) comprises an outer tank body (101), heat insulation cotton (102) and an inner tank body (103), wherein the heat insulation cotton (102) is attached to the inner wall of the outer tank body (101), and the inner tank body (103) is arranged on the inner wall of the heat insulation cotton (102).

3. A novel molten salt electric furnace as claimed in claim 2, characterized in that the inner surface of the outer tank body (101) is attached to the outer surface of the heat-insulating cotton (102), and the outer tank body (101) is fixedly connected with the inner tank body (103).

4. A novel molten salt electric furnace according to claim 2, characterized in that the electric heating pipes (2) are equally distributed along the horizontal direction of the inner tank (103), and the inner tank (103) is cylindrical in shape.

5. A novel molten salt electric furnace according to claim 1, characterized in that the central axis of the corrugated pipe (402) coincides with the central axis of the heat exchanger (401), and the vertical section of the corrugated pipe (402) is corrugated.

6. A novel molten salt electric furnace as claimed in claim 1, characterized in that the liquid outlet pipes (6) are communicated with the heat exchanger (401) through the sub-extraction pipes (5), and the liquid outlet pipes (6) are equidistantly distributed along the vertical direction of the sub-extraction pipes (5).

7. A novel molten salt electric furnace as claimed in claim 2, characterized in that the liquid accumulating box (9) is communicated with the inner tank body (103) through a liquid return pipe (10), and the liquid accumulating box (9) is cylindrical.