A heat exchange device for a molten salt furnace

Abstract

The utility model discloses a kind of heating molten salt furnace heat exchange devices, including device outer body, the inside of device outer body is provided with heating cavity, the inside of heating cavity is provided with electric heating tube, electric heating tube is fixedly connected with device outer body, the outside of heating cavity is provided with temperature guide ring plate, temperature guide ring plate is fixedly connected with device outer body, the inside of temperature guide ring plate is provided with heat exchange pipe, heat exchange pipe spiral setting, temperature guide ring plate and heat exchange pipe are made of die-casting aluminum alloy. Its realized in heating molten salt furnace heat exchange capacity, increased practicability, to solve the need to be output to heat exchange equipment at heat exchange operation molten salt, molten salt exists temperature loss in conveying pipeline in this process, influence heat exchange efficiency, increase the problem of energy consumption.

Description

Technical Field

[0001] This utility model relates to the field of heat exchange device technology, specifically a heat exchange device for heating a molten salt furnace. Background Technology

[0002] A molten salt heating furnace is a special industrial boiler that uses ternary or binary inorganic molten salt as a heat transfer medium, such as a mixture of potassium nitrate, sodium nitrate, and sodium nitrite. It is heated by fuels such as coal, oil, or gas to transfer heat energy to the heat-using equipment.

[0003] For example, the patent with publication number CN206145987U (a molten salt electric heating furnace) includes a molten salt electric heating furnace body, a molten salt outlet, a resistance heater, a molten salt electric heating furnace cover, a molten salt inlet, and a partition; the molten salt electric heating furnace body is the main structure of the electric heating furnace, the molten salt electric heating furnace body has an open structure, the molten salt outlet is located on one side of the molten salt electric heating furnace body, the molten salt inlet is located at the bottom of the molten salt electric heating furnace body, and the molten salt electric heating furnace cover is located at the opening of the molten salt electric heating furnace body;

[0004] Although the existing technology has a molten salt outlet pipe diameter larger than the molten salt inlet, which ensures that the molten salt level in the heating furnace does not exceed the molten salt outlet, the molten salt needs to be output to the heat exchange equipment for heat exchange during the heat exchange operation. During this process, the molten salt will experience temperature loss in the conveying pipeline, affecting the heat exchange efficiency, increasing energy consumption, and long-distance transportation may also bring safety hazards such as pipeline corrosion and molten salt leakage. Therefore, the market urgently needs to develop a heat exchange device for heating molten salt furnaces to help people solve the existing problems. Utility Model Content

[0005] The purpose of this invention is to provide a heat exchange device for a molten salt furnace, in order to solve the problem mentioned in the background art that when performing heat exchange operations, molten salt needs to be output to the heat exchange equipment for heat exchange. During this process, the molten salt will experience temperature loss in the conveying pipeline, which affects the heat exchange efficiency and increases energy consumption.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a heat exchange device for heating a molten salt furnace, comprising an outer body, a heating chamber inside the outer body, an electric heating tube inside the heating chamber, the electric heating tube being fixedly connected to the outer body, a temperature-conducting ring plate outside the heating chamber, the temperature-conducting ring plate being fixedly connected to the outer body, a heat exchange tube inside the temperature-conducting ring plate, the heat exchange tube being spirally arranged, and both the temperature-conducting ring plate and the heat exchange tube being made of die-cast aluminum alloy.

[0007] Preferably, an electric valve three is provided on the upper side of one side of the outer body of the device, an input pipe is fixedly installed on one side of the electric valve three, and a connecting pipe one is fixedly installed on the other side of the electric valve three. One end of the connecting pipe one extends into the interior of the outer body of the device and is fixedly connected to one end of the heat exchange tube.

[0008] Preferably, an electric valve four is provided on the lower side of the other side of the device body. An output pipe is fixedly installed on one side of the electric valve four, and a connecting pipe two is fixedly installed on the other side of the electric valve four. One end of the connecting pipe two extends into the interior of the device body and is fixedly connected to the other end of the heat exchange pipe.

[0009] Preferably, a heat insulation layer is provided inside the outer body of the device along the outer side of the temperature-conducting ring plate, and a temperature sensor is provided above the interior of the heating cavity, and the temperature sensor is fixedly connected to the outer body of the device.

[0010] Preferably, an electric valve is fixedly installed on the upper part of the device body, and a feed pipe is fixedly installed on the upper part of the electric valve.

[0011] Preferably, an electric valve two is fixedly installed in the middle of the lower part of the outer body of the device, and a bottom pipe is fixedly installed below the electric valve two.

[0012] Preferably, an operation panel is fixedly installed at the front end of the device body, and support legs are symmetrically fixedly installed on both sides below the device body.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This utility model integrates electric heating, molten salt storage, and heat exchange functions into a single device. It directly heats the molten salt through a built-in electric heating tube, and, in conjunction with a die-cast aluminum alloy temperature-conducting ring plate and a spiral heat exchange tube, not only achieves efficient heat conduction and uniform temperature distribution, but also completely eliminates the risk of corrosion and leakage from external delivery pipelines. The spiral heat exchange structure provides the maximum heat exchange area within a limited space, allowing the molten salt to complete the entire heating and heat exchange process within a closed system. This reduces heat loss and equipment footprint, while also improving system safety and operational stability.

[0015] This utility model, through the setting of input and output pipes, facilitates the input of the medium to be heated into the heat exchange tube, realizing the heat exchange operation of the lava furnace. Furthermore, the input and output pipes are respectively connected to electric valve three and electric valve four, which facilitates the adjustment of the input of the heating medium and increases its practicality.

[0016] This invention effectively reduces the loss of heat from the heating chamber to the external environment and improves the efficiency of heat utilization by setting a heat insulation layer along the outer side of the temperature-conducting ring plate inside the outer body of the device. Attached Figure Description

[0017] Figure 1 This is a front view of a heat exchange device for a molten salt furnace according to the present invention;

[0018] Figure 2 This is a cross-sectional view of the outer body of the device of this utility model;

[0019] Figure 3 This is an enlarged schematic diagram of part A of this utility model.

[0020] In the diagram: 1. External body of the device; 101. Heating chamber; 2. Control panel; 3. Feed pipe; 4. Electric valve one; 5. Support leg; 6. Electric valve two; 7. Bottom pipe; 8. Heating element; 9. Temperature sensor; 10. Temperature-conducting ring plate; 11. Heat exchanger tube; 12. Insulation layer; 13. Electric valve three; 14. Input pipe; 15. Electric valve four; 16. Output pipe; 17. Connecting pipe one. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] Please see Figure 1-3 The present invention provides an embodiment of a heat exchange device for heating a molten salt furnace, comprising an outer body 1, a heating chamber 101 inside the outer body 1, an electric heating tube 8 inside the heating chamber 101, the electric heating tube 8 being fixedly connected to the outer body 1, a temperature-conducting ring plate 10 outside the heating chamber 101, the temperature-conducting ring plate 10 being fixedly connected to the outer body 1, and a heat exchange tube 11 inside the temperature-conducting ring plate 10, the heat exchange tube 11 being spirally arranged, and both the temperature-conducting ring plate 10 and the heat exchange tube 11 being made of die-cast aluminum alloy.

[0023] By spirally arranging the heat exchange tube 11 within the temperature-conducting ring plate 10 inside the outer body 1 of the device, the molten salt can directly exchange heat near the heating chamber 101 without long-distance transportation, thus greatly reducing the temperature loss of the molten salt in the transportation pipeline and improving the heat exchange efficiency. At the same time, the reduced long-distance transportation also reduces the risk of pipeline corrosion and molten salt leakage, improving the safety and reliability of the equipment. In addition, both the temperature-conducting ring plate 10 and the heat exchange tube 11 are made of die-cast aluminum alloy, which has good thermal conductivity and corrosion resistance, enhancing the heat exchange effect and the service life of the equipment.

[0024] Furthermore, an electric valve 3 13 is provided on the upper side of one side of the outer body 1 of the device. An input pipe 14 is fixedly installed on one side of the electric valve 3 13, and a connecting pipe 1 17 is fixedly installed on the other side of the electric valve 3 13. One end of the connecting pipe 1 17 extends into the interior of the outer body 1 of the device and is fixedly connected to one end of the heat exchange tube 11. An electric valve 4 15 is provided on the lower side of the other side of the outer body 1 of the device. An output pipe 16 is fixedly installed on one side of the electric valve 4 15, and a connecting pipe 2 is fixedly installed on the other side of the electric valve 4 15. One end of the connecting pipe 2 extends into the interior of the outer body 1 of the device and is fixedly connected to the other end of the heat exchange tube 11.

[0025] The input pipe 14 and output pipe 16 facilitate the input of the medium to be heated into the heat exchange pipe 11, thereby realizing the heat exchange operation of the lava furnace. Furthermore, the electric valves 13 and 15 facilitate the adjustment of the input of the heating medium, increasing its practicality.

[0026] Furthermore, an insulation layer 12 is provided inside the outer body 1 along the outer side of the temperature-conducting ring plate 10, and a temperature sensor 9 is provided above the heating chamber 101. The temperature sensor 9 is fixedly connected to the outer body 1, and the temperature sensor 9 is a PT100 temperature sensor.

[0027] The insulation layer 12 can effectively reduce the loss of heat from the heating chamber 101 to the external environment, and improve the utilization efficiency of heat energy. At the same time, the monitoring function of the temperature sensor 9 helps to keep the temperature inside the heating chamber 101 within the set range, avoiding the impact of excessively high or low temperatures on the heat exchange effect and equipment life.

[0028] Furthermore, an electric valve 4 is fixedly installed on the upper part of the outer body 1 of the device, and a feed pipe 3 is fixedly installed on the upper part of the electric valve 4.

[0029] The electric valve 4 allows for convenient adjustment of the molten salt feeding process, ensuring that the molten salt can smoothly enter the heating chamber 101 for heating, thus increasing its practicality.

[0030] Furthermore, an electric valve 6 is fixedly installed in the middle of the lower part of the outer body 1 of the device, and a bottom pipe 7 is fixedly installed below the electric valve 6.

[0031] The installation of electric valve 26 facilitates drainage at the bottom of the device, ensuring that the internal molten salt can be quickly emptied during maintenance or repair, thus increasing its practicality.

[0032] Furthermore, an operation panel 2 is fixedly installed at the front end of the device body 1, and support legs 5 are symmetrically fixedly installed on both sides below the device body 1.

[0033] The support leg 5 allows the device to be placed stably on the ground, avoiding problems such as tilting and swaying, and improving the stability and reliability of the device.

[0034] Working principle: During use, molten salt enters the heating chamber 101 of the device through the feed pipe 3 fixedly installed on the top of the outer body 1. The electric heating tube 8 installed in the heating chamber 101 is energized and heats up the molten salt. At the same time, the heat insulation layer 12 installed inside the outer body 1 along the outside of the temperature-conducting ring plate 10 effectively reduces the loss of heat to the external environment and improves the heat energy utilization efficiency. During the heat exchange process, the medium that needs to be heat exchanged enters one end of the spirally arranged heat exchange tube 11 inside the temperature-conducting ring plate 10 through the input pipe 14 installed on the top side of the outer body 1. Under the regulation of the electric valve 3 13, the medium enters the heat exchange tube 11 installed on the top side of the outer body 1 at a suitable flow rate. It directly exchanges heat with the high-temperature molten salt in the heating chamber 101. The medium after heat exchange flows out from the other end of the heat exchange tube 11. After being regulated by the electric valve 4 15 installed on the bottom side of the outer body 1, it is discharged from the device through the output pipe 16, realizing the heat exchange work of the lava furnace. When the device needs maintenance or repair, the molten salt of the device can be emptied through the bottom pipe 7 through the electric valve 2 6 fixedly installed in the middle of the bottom of the outer body 1, which increases its practicality.

[0035] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A heat exchange device for heating a molten salt furnace, comprising an outer body (1), characterized in that: The outer body (1) of the device is provided with a heating chamber (101), and an electric heating tube (8) is provided inside the heating chamber (101). The electric heating tube (8) is fixedly connected to the outer body (1). A temperature-conducting ring plate (10) is provided on the outside of the heating chamber (101). The temperature-conducting ring plate (10) is fixedly connected to the outer body (1). A heat exchange tube (11) is provided inside the temperature-conducting ring plate (10). The heat exchange tube (11) is spirally arranged. Both the temperature-conducting ring plate (10) and the heat exchange tube (11) are made of die-cast aluminum alloy.

2. The heat exchange device for heating a molten salt furnace according to claim 1, characterized in that: An electric valve three (13) is provided on the upper side of one side of the outer body (1) of the device. An input pipe (14) is fixedly installed on one side of the electric valve three (13). A connecting pipe one (17) is fixedly installed on the other side of the electric valve three (13). One end of the connecting pipe one (17) extends into the interior of the outer body (1) of the device and is fixedly connected to one end of the heat exchange pipe (11).

3. The heat exchange device for heating a molten salt furnace according to claim 2, characterized in that: An electric valve four (15) is provided on the lower side of the other side of the outer body (1) of the device. An output pipe (16) is fixedly installed on one side of the electric valve four (15), and a connecting pipe two is fixedly installed on the other side of the electric valve four (15). One end of the connecting pipe two extends into the interior of the outer body (1) of the device and is fixedly connected to the other end of the heat exchange pipe (11).

4. The heat exchange device for heating a molten salt furnace according to claim 1, characterized in that: A heat insulation layer (12) is provided inside the outer body (1) of the device along the outer side of the temperature-conducting ring plate (10), and a temperature sensor (9) is provided above the heating chamber (101), and the temperature sensor (9) is fixedly connected to the outer body (1).

5. The heat exchange device for heating a molten salt furnace according to claim 1, characterized in that: An electric valve (4) is fixedly installed above the outer body (1) of the device, and a feed pipe (3) is fixedly installed above the electric valve (4).

6. The heat exchange device for heating a molten salt furnace according to claim 1, characterized in that: An electric valve 2 (6) is fixedly installed in the middle below the outer body (1) of the device, and a bottom pipe (7) is fixedly installed below the electric valve 2 (6).

7. The heat exchange device for heating a molten salt furnace according to claim 1, characterized in that: An operation panel (2) is fixedly installed at the front end of the device body (1), and support legs (5) are symmetrically fixedly installed on both sides below the device body (1).

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