Molten salt steam heat exchange device

Abstract

The utility model discloses a fused salt steam heat exchange device which comprises a heat exchange device body, the upper surface of the heat exchange device body is fixedly connected with a motor, the output end of the motor is fixedly connected with a lead screw, the side surface of the lead screw is in threaded connection with a sleeve, and the side surface of the sleeve is fixedly connected with a scraper blade. A molten salt pipe is fixedly connected to the side surface of the heat exchange device body, and a feeding box is fixedly connected to the side surface of the molten salt pipe. According to the structure, through cooperation of the scraping ring, the lead screw, the motor and the scraping plate, after fused salt is condensed on the inner wall of the fused salt pipe, the scraping ring is pushed or the motor is started to enable the scraping plate to rotate and descend, the inner wall of the fused salt pipe is cleaned, and the conditions that overall operation is affected by internal blockage, and the service life is shortened are avoided; and the filter screen mounted in the scraping ring can filter impurities in the fused salt, so that the impurities or unmelted large particles are prevented from entering the fused salt pipe to cause blockage, and normal heat exchange between the fused salt and boiler water is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of molten salt steam heat exchange, in particular to a molten salt steam heat exchange device. Background Art

[0002] The molten salt steam heat exchange system is an efficient and energy-saving heat exchange system, which is commonly used for steam and hot water heat exchange in industrial production processes. The molten salt steam heat exchange system is a system that uses molten salt as a heat transfer medium and steam as a heat transfer source for heat exchange. Molten salt is a substance with high heat capacity and stability. Commonly used molten salts include potassium chloride and potassium nitrate.

[0003] In daily use, in order to ensure the stable operation of the system, it is also necessary to regularly inspect and maintain the heat exchange equipment, clean and replace the molten salt. The molten salt can condense after cooling down and adhere to the pipe wall, affecting the flow rate of the molten salt and the heat exchange effect. The existing heat exchange device reduces the impact on the normal flow of molten salt by setting two sets of pipes entering and exiting the molten salt to ensure normal heat exchange between the molten salt and the boiler water. However, the molten salt may still condense in the pipe. Long-term use will cause pipe blockage, affecting the overall operation, and the pipe blockage is not easy to clean, which reduces the service life. After searching, it was found that the technical solution provided by the utility model with application number 202120897768.9 also has the above-mentioned problems. Utility Model Content

[0004] According to the molten salt steam heat exchange device, the purpose of the utility model is to solve at least one of the technical problems existing in the prior art, and to provide a molten salt steam heat exchange device. Through the cooperation of a scraper ring, a screw, a motor and a scraper, after the molten salt is condensed on the inner wall of the molten salt tube, the scraper ring can be pushed, or the motor can be started to rotate and descend the scraper to clean the inner wall of the molten salt tube, thereby avoiding internal blockage that affects the overall operation and reduces the service life. The filter net installed in the scraper ring can filter impurities in the molten salt, thereby avoiding impurities or large unmelted particles from entering the molten salt tube and causing blockage, thereby ensuring normal heat exchange between the molten salt and boiler water.

[0005] To achieve the above-mentioned purpose, the utility model also provides a heat exchange device body as described above, wherein a motor is fixedly connected to the upper surface of the heat exchange device body, the motor provides power for the rotation of the lead screw, the output end of the motor is fixedly connected to the lead screw, the side surface of the lead screw is threadedly connected to a sleeve, the sleeve rotates and displaces under the action of the lead screw, the side surface of the sleeve is fixedly connected to a scraper, the scraper scrapes off the molten salt condensed on the side inner wall of the molten salt tube when rotating and displacing, and the side surface of the heat exchange device body is fixedly connected to the molten salt tube;

[0006] A feed box is fixedly connected to the side surface of the molten salt tube, which is convenient for feeding high-temperature molten salt into the molten salt tube. A connecting rod is movably connected to the side surface of the feed box. A scraper ring is fixedly connected to the side surface of the connecting rod. The scraper ring is movable under the action of the connecting rod to scrape the side inner wall of the molten salt tube. A filter screen is fixedly connected to the side inner wall of the scraper ring. The filter screen can block impurities in the melted molten salt to prevent them from entering the molten salt tube and causing blockage.

[0007] According to the molten salt steam heat exchange device, the motor is electrically connected to an external power source, and the side surface of the scraper ring is movably connected to the molten salt pipe.

[0008] According to the molten salt steam heat exchange device, the side surface of the lead screw is rotatably connected to the molten salt pipe, and the side surface of the scraper is movably connected to the molten salt pipe.

[0009] According to the molten salt steam heat exchange device, the end of the connecting rod away from the feed box is fixedly connected to a disc, providing a fulcrum for the human hand when pushing the scraper ring, and the end of the molten salt pipe away from the feed box is fixedly connected to a discharge port, which is convenient for discharging the cooled molten salt.

[0010] According to the molten salt steam heat exchange device, a baffle is fixedly connected to the side surface of the lead screw, and an upper surface of the baffle is movably connected to the sleeve.

[0011] According to the molten salt steam heat exchange device, the side surface of the scraper ring is movably connected to the feed box, and the upper surface of the heat exchange device body is provided with a steam port to facilitate the discharge of steam.

[0012] According to the molten salt steam heat exchange device, a water inlet is provided on the upper surface of the heat exchange device body for injecting cold water into the heat exchange device body, and a water outlet is provided on the side surface of the heat exchange device body for discharging hot water after heat exchange.

[0013] According to the molten salt steam heat exchange device, the lower surface of the heat exchange device body is provided with supporting legs.

[0014] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The utility model is further described below in conjunction with the accompanying drawings and embodiments;

[0016] Figure 1 This is a front view of the molten salt steam heat exchange device of the utility model;

[0017] Figure 2 It is a side view of the molten salt steam heat exchange device of the utility model;

[0018] Figure 3 This is a schematic diagram of the main structure of the molten salt steam heat exchange device of the utility model;

[0019] Figure 4 for Figure 3 A schematic diagram of the structure enlargement in the middle;

[0020] Figure 5 It is a partial structural schematic diagram of the molten salt steam heat exchange device of the utility model.

[0021] Legend:

[0022] 1. Heat exchange device body; 2. Motor; 3. Screw; 4. Sleeve; 5. Scraper; 6. Molten salt tube; 7. Feed box; 8. Connecting rod; 9. Scraper ring; 10. Filter screen; 11. Disc; 12. Discharge port; 13. Baffle; 14. Steam port; 15. Water inlet; 16. Water outlet. DETAILED DESCRIPTION

[0023] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0024] Reference Figure 1-5 The molten salt steam heat exchange device of the utility model embodiment includes a heat exchange device body 1, the upper surface of the heat exchange device body 1 is fixedly connected with a motor 2, the motor 2 provides power for the rotation of the screw 3, the output end of the motor 2 is fixedly connected with the screw 3, the side surface of the screw 3 is threadedly connected with a sleeve 4, the sleeve 4 rotates and displaces under the action of the screw 3, the side surface of the sleeve 4 is fixedly connected with a scraper 5, the scraper 5 scrapes off the molten salt condensed on the side inner wall of the molten salt tube 6 when rotating and displacing, the side surface of the heat exchange device body 1 is fixedly connected with the molten salt tube 6, the side surface of the screw 3 is rotatably connected to the molten salt tube 6, the side surface of the scraper 5 is movably connected to the molten salt tube 6, the side surface of the screw 3 is fixedly connected with a baffle 13, and the upper surface of the baffle 13 is movably connected to the sleeve 4.

[0025] The side surface of the molten salt tube 6 is fixedly connected with a feed box 7, which is convenient for feeding high-temperature molten salt into the molten salt tube 6. The side surface of the feed box 7 is movably connected with a connecting rod 8. The side surface of the connecting rod 8 is fixedly connected with a scraper ring 9. The motor 2 is electrically connected to an external power supply. The side surface of the scraper ring 9 is movably connected to the molten salt tube 6. The scraper ring 9 can move under the action of the connecting rod 8 to scrape the side inner wall of the molten salt tube 6. The side inner wall of the scraper ring 9 is fixedly connected with a filter screen 10. The filter screen 10 can block impurities in the melted molten salt to prevent them from entering the molten salt tube 6 and causing blockage. The connecting rod 8 is away from the feed box 7. A disc 11 is fixedly connected to one end to provide a fulcrum for the human hand when pushing the scraper ring 9. A discharge port 12 is fixedly connected to the end of the molten salt tube 6 away from the feed box 7 to facilitate the discharge of the cooled molten salt. The side surface of the scraper ring 9 is movably connected to the feed box 7. A steam port 14 is provided on the upper surface of the heat exchanger body 1 to facilitate the discharge of steam. A water inlet 15 is provided on the upper surface of the heat exchanger body 1 to inject cold water into the heat exchanger body 1. A water outlet 16 is provided on the side surface of the heat exchanger body 1 to discharge hot water after heat exchange. A support leg is provided on the lower surface of the heat exchanger body 1.

[0026] Working principle: When cleaning the inner wall of the molten salt tube 6, the connecting rod 8 can drive the scraper ring 9 to move inside the molten salt tube 6 by pushing the disc 11 to scrape off the solidified molten salt on the tank wall. At the same time, the power is turned on to start the motor 2 to make the scraper 5 rotate and descend under the action of the screw 3. During the descent, the condensed molten salt on the inner wall of the molten salt tube 6 is scraped off.

[0027] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. A molten salt steam heat exchange device, characterized in that: include: A heat exchange device body (1), wherein a motor (2) is fixedly connected to the upper surface of the heat exchange device body (1), a lead screw (3) is fixedly connected to the output end of the motor (2), a sleeve (4) is threadedly connected to the side surface of the lead screw (3), a scraper (5) is fixedly connected to the side surface of the sleeve (4), and a molten salt tube (6) is fixedly connected to the side surface of the heat exchange device body (1); The side surface of the molten salt tube (6) is fixedly connected to a feed box (7), the side surface of the feed box (7) is movably connected to a connecting rod (8), the side surface of the connecting rod (8) is fixedly connected to a scraper ring (9), and the side inner wall of the scraper ring (9) is fixedly connected to a filter screen (10).

2. The molten salt steam heat exchange device according to claim 1, characterized in that: The motor (2) is electrically connected to an external power source, and the side surface of the scraper ring (9) is movably connected to the molten salt tube (6).

3. The molten salt steam heat exchange device according to claim 1, characterized in that: The side surface of the lead screw (3) is rotatably connected to the molten salt pipe (6), and the side surface of the scraper (5) is movably connected to the molten salt pipe (6).

4. The molten salt steam heat exchange device according to claim 1, characterized in that: One end of the connecting rod (8) away from the feed box (7) is fixedly connected to a disc (11), and one end of the molten salt tube (6) away from the feed box (7) is fixedly connected to a discharge port (12).

5. The molten salt steam heat exchange device according to claim 1, characterized in that: A baffle plate (13) is fixedly connected to the side surface of the lead screw (3), and an upper surface of the baffle plate (13) is movably connected to the sleeve (4).

6. The molten salt steam heat exchange device according to claim 1, characterized in that: The side surface of the scraper ring (9) is movably connected to the feed box (7), and the upper surface of the heat exchange device body (1) is provided with a steam port (14).

7. The molten salt steam heat exchange device according to claim 1, characterized in that: The upper surface of the heat exchange device body (1) is provided with a water inlet (15), and the side surface of the heat exchange device body (1) is provided with a water outlet (16).

8. The molten salt steam heat exchange device according to claim 1, characterized in that: The lower surface of the heat exchange device body (1) is provided with supporting legs.

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