Industrial steam supply device based on fused salt energy storage

Abstract

The utility model relates to the technical field of industrial steam supply, and discloses an industrial steam supply device based on fused salt energy storage, which comprises a base, a high-temperature tank, a low-temperature tank and a heat exchange tank are respectively and fixedly mounted on the upper surface of the base, a main heating wire is fixedly mounted on the inner wall of the high-temperature tank, and a first conveying pipe is fixedly mounted at the output end of the high-temperature tank; the discharging end of the first conveying pipe communicates with the feeding end of the heat exchange tank, and a second conveying pipe is fixedly installed at the discharging end of the heat exchange tank. By arranging the intercepting and melting assembly, when molten salt flows in a backflow pipe, part of the molten salt in a solid state can be intercepted into the heating box through an intercepting net, then the part of the molten salt is heated and melted through a supplementary heating plate with low energy consumption, and then the molten salt is conveyed into the backflow pipe through a first pump body; on the premise of low energy consumption, the condition that fused salt is accumulated in the return pipe is reduced, and normal operation of the whole fused salt energy storage system is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of industrial steam supply, and more specifically to an industrial steam supply device based on molten salt energy storage. Background Art

[0002] Molten salt energy storage is a heating method that uses molten salt as a heat transfer medium to transmit thermal energy. In a power plant, electricity is used to heat the hot melt, and then molten salt is used to heat water, and water vapor is used to supply energy to external equipment.

[0003] In the existing industrial steam supply device, the molten salt is heated inside the high-temperature tank and then transported to the heat exchange box. After the heat exchange action, the molten salt enters the low-temperature tank for temporary storage. Then the molten salt will flow back into the high-temperature tank to complete the molten salt flow cycle. However, when the molten salt flows back from the low-temperature tank through the return pipe, some of the molten salt will condense into solid due to the low temperature. This part of the solid molten salt accumulates inside the return pipe, which will gradually cause the return pipe to be blocked, affecting the normal operation of the entire industrial steam supply device.

[0004] In view of this, the present invention proposes an industrial steam supply device based on molten salt energy storage to solve this problem. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides an industrial steam supply device based on molten salt energy storage to solve the problems existing in the above-mentioned background technology.

[0006] The utility model provides the following technical solution: an industrial steam supply device based on molten salt energy storage, comprising a base, a high-temperature tank, a low-temperature tank and a heat exchange tank are fixedly mounted on the upper surface of the base respectively, a main electric heating wire is fixedly mounted on the inner wall of the high-temperature tank, a first conveying pipe is fixedly mounted on the output end of the high-temperature tank, the discharge end of the first conveying pipe is connected to the feed end of the heat exchange tank, a second conveying pipe is fixedly mounted on the discharge end of the heat exchange tank, the discharge end of the second conveying pipe is connected to the low-temperature tank, a return pipe is fixedly connected between the feed end of the high-temperature tank and the discharge end of the low-temperature tank, and an intercepting hot melt component is provided on the surface of the return pipe;

[0007] The intercepting hot melt assembly includes a heating box embedded in the surface of the return pipe near the low-temperature tank. Three openings are provided on the surface of the heating box. The return pipe is connected to the two openings on the top of the heating box, and a connecting pipe is embedded in the opening on the bottom side of the return pipe. The other end of the connecting pipe is connected to the left end of the return pipe. An intercepting net is provided on the inner wall of the heating box tilted downward, a supplementary heating plate is fixedly installed on the inner bottom wall of the heating box, and a first pump body is fixedly installed on the surface of the connecting pipe.

[0008] Furthermore, an auxiliary heating wire is fixedly installed on the inner wall of the cryogenic tank; by arranging the auxiliary heating wire inside the cryogenic tank, when the temperature of the cryogenic tank is too low, the molten salt can be subjected to low-power auxiliary heating, thereby avoiding the situation where the molten salt condenses in large quantities due to the low temperature after heat exchange.

[0009] Furthermore, a second pump body is fixedly installed on the surface of the first delivery pipe, with the delivery end of the second pump body facing the heat exchange tank, and a third pump body is fixedly installed on the surface of the return pipe, with the delivery end of the third pump body facing the high-temperature tank.

[0010] Furthermore, a water supply pipe is embedded in the front of the heat exchange tank, the water inlet end of the water supply pipe is connected to the external water supply pipe, a solenoid valve is provided on the surface of the water supply pipe, a steam supply pipe is embedded in the top of the heat exchange tank, a liquid level switch is provided on the inner wall of the heat exchange tank, and the liquid level switch is electrically connected to the solenoid valve; during the use of the heat exchange tank, the water level is monitored by the liquid level switch, and when the water level is too low, water can be replenished by opening the solenoid valve on the surface of the water pipe.

[0011] Furthermore, a heat exchange coil is provided on the inner wall of the heat exchange tank, and the discharge end of the first conveying pipe and the feed end of the second conveying pipe are respectively connected to the feed end and the discharge end of the heat exchange coil.

[0012] Furthermore, the heat exchange coil is rotatably connected to the first delivery pipe, the second delivery pipe and the heat exchange tank through sealed bearings, and a rotation drive component is provided on the surface of the heat exchange tank corresponding to the heat exchange coil.

[0013] Furthermore, the rotary drive assembly includes a high-temperature resistant motor fixedly mounted on the top of the heat exchange tank, the output shaft of the high-temperature resistant motor extends to the interior of the heat exchange tank and is fixedly mounted with a worm, and the surface of the heat exchange coil is fixedly mounted with a worm wheel, and the worm and the worm wheel are meshed; by setting up the rotary drive assembly, when the heat exchange coil is used, the high-temperature resistant motor is used to drive the worm to rotate, and based on the meshing of the worm and the worm wheel, the heat exchange coil can be driven to rotate, and the contact position between the heat exchange coil and the water is continuously changed, avoiding the presence of a large number of bubbles at the contact surface position to isolate the contact between the heat exchange coil and the water, thereby improving the contact effect and heat exchange efficiency.

[0014] Furthermore, electronic thermometers are embedded on the top of the high-temperature tank and the low-temperature tank; the internal temperatures of the high-temperature tank and the low-temperature tank can be monitored in real time using the electronic thermometers.

[0015] The technical effects and advantages of this utility model are:

[0016] 1. In the present invention, the molten salt is heated to a molten state by the main electric heating wire inside the high-temperature tank, and then the molten salt enters the heat exchange tank through the first delivery pipe. After the heat exchange action, the molten salt enters the low-temperature tank through the second delivery pipe, and then flows back to the high-temperature tank through the return pipe. By setting an interception melting component, when the molten salt flows inside the return pipe, the interception net can be used to intercept part of the solid molten salt into the heating box, and then the supplementary heating plate is used to heat and melt this part of the molten salt at a lower energy consumption, and then it is transported into the return pipe through the first pump body. Under the premise of low energy consumption, the accumulation of molten salt inside the return pipe is reduced, thereby ensuring the normal operation of the entire molten salt energy storage system.

[0017] 2. The utility model can perform low-power auxiliary heating on the molten salt by arranging an auxiliary electric heating wire inside the low-temperature tank, so as to avoid the situation where the molten salt condenses in large quantities due to the low temperature after heat exchange; by arranging the second pump body and the third pump body, the purpose of circulating the molten salt liquid can be achieved; when using the heat exchange tank, the molten salt flows inside the heat exchange coil, and the water inside the heat exchange tank is heated and vaporized by contact with the heat exchange coil, and the water vapor is discharged from the steam supply pipe to the outside to realize the steam supply action. During the use of the heat exchange tank, the water level is monitored by the liquid level switch. When the water level is too low, water can be replenished through the water replenishment pipe.

[0018] 3. The utility model sets a rotary drive component. When the heat exchange coil is used, a high-temperature resistant motor is used to drive the worm to rotate. Based on the meshing of the worm and the worm wheel, the heat exchange coil can be driven to rotate, and the contact position between the heat exchange coil and the water is continuously changed, thereby avoiding the presence of a large number of bubbles on the contact surface that reduce the contact effect between the heat exchange coil and the water, thereby improving the heat exchange efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the cutaway structure of the high-temperature tank and the low-temperature tank of the utility model;

[0021] Figure 3 This is a schematic diagram of the cutaway structure of the heating box of the utility model;

[0022] Figure 4 This is a schematic diagram of the cross-section structure of the heat exchange tank of the present invention.

[0023] The accompanying drawings are marked as follows: 1. base; 2. high-temperature tank; 3. low-temperature tank; 4. heat exchange tank; 5. first delivery pipe; 6. second delivery pipe; 7. return pipe; 8. heating box; 9. connecting pipe; 10. interception net; 11. supplementary heating plate; 12. first pump body; 13. main heating wire; 14. auxiliary heating wire; 15. second pump body; 16. third pump body; 17. water supply pipe; 18. steam supply pipe; 19. liquid level switch; 20. heat exchange coil; 21. high-temperature resistant motor; 22. worm; 23. worm gear; 24. electronic thermometer. DETAILED DESCRIPTION

[0024] The following will clearly and completely describe the technical solution of the present invention in conjunction with the drawings in the present invention. In addition, the forms of the various structures recorded in the following embodiments are merely examples. The industrial steam supply device based on molten salt energy storage involved in the present invention is not limited to the various structures recorded in the following embodiments. All other implementation methods obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0025] Reference Figures 1 to 4 The utility model provides an industrial steam supply device based on molten salt energy storage, including a base 1, on the upper surface of which a high-temperature tank 2, a low-temperature tank 3 and a heat exchange tank 4 are fixedly mounted, a main heating wire 13 is fixedly mounted on the inner wall of the high-temperature tank 2, and electronic thermometers 24 are embedded at the tops of the high-temperature tank 2 and the low-temperature tank 3. The electronic thermometers 24 can be used to monitor the internal temperatures of the high-temperature tank 2 and the low-temperature tank 3 in real time.

[0026] A first conveying pipe 5 is fixedly installed at the output end of the high-temperature tank 2, and the discharge end of the first conveying pipe 5 is connected to the feed end of the heat exchange tank 4. A second conveying pipe 6 is fixedly installed at the discharge end of the heat exchange tank 4, and the discharge end of the second conveying pipe 6 is connected to the low-temperature tank 3, and a reflux pipe 7 is fixedly connected between the feed end of the high-temperature tank 2 and the discharge end of the low-temperature tank 3.

[0027] A second pump body 15 is fixedly installed on the surface of the first delivery pipe 5 , and the delivery end of the second pump body 15 faces the heat exchange tank 4 . A third pump body 16 is fixedly installed on the surface of the return pipe 7 , and the delivery end of the third pump body 16 faces the high-temperature tank 2 .

[0028] A heat exchange coil 20 is provided on the inner wall of the heat exchange tank 4 , and the discharge end of the first conveying pipe 5 and the feed end of the second conveying pipe 6 are respectively connected to the feed end and the discharge end of the heat exchange coil 20 .

[0029] It is worth noting that when the present invention is in use, the entire device is connected to the external mains power in advance, and then molten salt is added to the high-temperature tank 2. The molten salt is heated to a molten state by the main heating wire 13 inside the high-temperature tank 2. Then, under the conveying action of the second pump body 15, the molten salt enters the heat exchange tank 4 through the first conveying pipe 5. After exchanging heat with water through the heat exchange coil 20, the molten salt enters the low-temperature tank 3 through the second conveying pipe 6 under the conveying action of the second pump body 15. Then, under the conveying action of the third pump body 16, it flows back to the high-temperature tank 2 through the return pipe 7, completing the circulation process of the molten salt and realizing the steam supply operation during the circulation of the molten salt.

[0030] A water supply pipe 17 is embedded in the front of the heat exchange tank 4. The water inlet end of the water supply pipe is connected to the external water supply pipe. A solenoid valve is provided on the surface of the water supply pipe 17. A steam supply pipe 18 is embedded in the top of the heat exchange tank 4. A liquid level switch 19 is provided on the inner wall of the heat exchange tank 4. The liquid level switch 19 is electrically connected to the solenoid valve.

[0031] Furthermore, during the use of the heat exchange tank 4 , the water level is monitored by the liquid level switch 19 . When the water level is too low, water replenishment can be performed by opening the electromagnetic valve on the surface of the water pipe 17 .

[0032] The surface of the return pipe 7 is provided with an intercepting hot melt component.

[0033] The intercepting hot melt assembly includes a heating box 8 embedded in the surface of the return pipe 7 near the low-temperature tank 3. Three openings are provided on the surface of the heating box 8. The return pipe 7 is connected to the two openings on the top of the heating box 8, and a connecting pipe 9 is embedded in the opening on the bottom side of the return pipe 7. The other end of the connecting pipe 9 is connected to the left end of the return pipe 7. An intercepting net 10 is provided on the inner wall of the heating box 8, and a supplementary heating plate 11 is fixedly installed on the inner bottom wall of the heating box 8. A first pump body 12 is fixedly installed on the surface of the connecting pipe 9.

[0034] It is worth noting that by setting up an intercepting melting component, when the molten salt flows inside the return pipe 7, the intercepting net 10 can intercept part of the solid molten salt into the heating box 8, and then the supplementary heating plate 11 is used to heat and melt this part of the molten salt at a lower energy consumption, and then it is transported into the return pipe 7 through the first pump body 12. Under the premise of low energy consumption, the accumulation of molten salt inside the return pipe 7 is reduced, thereby ensuring the normal operation of the overall molten salt energy storage system.

[0035] An auxiliary heating wire 14 is fixedly mounted on the inner wall of the low-temperature tank 3 .

[0036] Furthermore, by providing an auxiliary heating wire 14 inside the low-temperature tank 3, when the temperature of the low-temperature tank 3 is too low, the molten salt can be subjected to low-power auxiliary heating to avoid the molten salt from condensing in large quantities due to the low temperature after heat exchange.

[0037] The heat exchange coil 20 is rotatably connected to the first delivery pipe 5 , the second delivery pipe 6 and the heat exchange tank 4 through sealed bearings, and a rotation drive component is provided on the surface of the heat exchange tank 4 corresponding to the heat exchange coil 20 .

[0038] The rotary drive assembly includes a high-temperature resistant motor 21 fixedly mounted on the top of the heat exchange tank 4. The output shaft of the high-temperature resistant motor 21 extends to the interior of the heat exchange tank 4 and is fixedly mounted with a worm 22. A worm gear 23 is fixedly mounted on the surface of the heat exchange coil 20, and the worm 22 is meshed with the worm gear 23.

[0039] It is worth noting that by setting up a rotary drive component, when using the heat exchange coil 20, the high-temperature resistant motor 21 is used to drive the worm 22 to rotate. Based on the engagement of the worm 22 and the worm wheel 23, the heat exchange coil 20 can be driven to rotate, and the contact position between the heat exchange coil 20 and the water is continuously changed, avoiding the presence of a large number of bubbles at the contact surface position to isolate the contact between the heat exchange coil 20 and the water, thereby improving the contact effect and heat exchange efficiency.

[0040] Finally, it should be noted that the drawings of the disclosed embodiments of the present invention only involve structures related to the disclosed embodiments. Other structures can refer to general designs. In the absence of conflict, the same embodiment and different embodiments of the present invention can be combined with each other.

Claims

1. An industrial steam supply device based on molten salt energy storage, comprising a base (1), characterized in that: A high-temperature tank (2), a low-temperature tank (3) and a heat exchange tank (4) are fixedly mounted on the upper surface of the base (1), a main electric heating wire (13) is fixedly mounted on the inner wall of the high-temperature tank (2), a first conveying pipe (5) is fixedly mounted on the output end of the high-temperature tank (2), the discharge end of the first conveying pipe (5) is connected to the feed end of the heat exchange tank (4), a second conveying pipe (6) is fixedly mounted on the discharge end of the heat exchange tank (4), the discharge end of the second conveying pipe (6) is connected to the low-temperature tank (3), and a return pipe (7) is fixedly connected between the feed end of the high-temperature tank (2) and the discharge end of the low-temperature tank (3), and an intercepting hot melt component is provided on the surface of the return pipe (7); The intercepting hot melt assembly includes a heating box (8) embedded in the surface of the return pipe (7) near the low-temperature tank (3), and three openings are opened on the surface of the heating box (8). The return pipe (7) is connected to the two openings on the top of the heating box (8), and a connecting pipe (9) is embedded in the opening on the bottom side of the return pipe (7), and the other end of the connecting pipe (9) is connected to the left end of the return pipe (7). The inner wall of the heating box (8) is inclined downward and provided with an intercepting net (10), the inner bottom wall of the heating box (8) is fixedly installed with a supplementary heating plate (11), and the surface of the connecting pipe (9) is fixedly installed with a first pump body (12).

2. The industrial steam supply device based on molten salt energy storage according to claim 1, characterized in that: An auxiliary heating wire (14) is fixedly mounted on the inner wall of the low-temperature tank (3).

3. The industrial steam supply device based on molten salt energy storage according to claim 1, characterized in that: A second pump body (15) is fixedly mounted on the surface of the first delivery pipe (5), with the delivery end of the second pump body (15) facing the heat exchange tank (4); a third pump body (16) is fixedly mounted on the surface of the return pipe (7), with the delivery end of the third pump body (16) facing the high-temperature tank (2).

4. The industrial steam supply device based on molten salt energy storage according to claim 1, characterized in that: A water supply pipe (17) is embedded in the front of the heat exchange tank (4), the water inlet end of the water supply pipe is connected to the external water supply pipe, and a solenoid valve is provided on the surface of the water supply pipe (17). A steam supply pipe (18) is embedded in the top of the heat exchange tank (4), and a liquid level switch (19) is provided on the inner wall of the heat exchange tank (4), and the liquid level switch (19) is electrically connected to the solenoid valve.

5. The industrial steam supply device based on molten salt energy storage according to claim 4, characterized in that: The inner wall of the heat exchange tank (4) is provided with a heat exchange coil (20), and the discharge end of the first conveying pipe (5) and the feed end of the second conveying pipe (6) are respectively connected to the feed end and the discharge end of the heat exchange coil (20).

6. The industrial steam supply device based on molten salt energy storage according to claim 5, characterized in that: The heat exchange coil (20) is rotatably connected to the first delivery pipe (5), the second delivery pipe (6) and the heat exchange tank (4) respectively through sealed bearings, and a rotation drive component is provided on the surface of the heat exchange tank (4) corresponding to the heat exchange coil (20).

7. The industrial steam supply device based on molten salt energy storage according to claim 6, characterized in that: The rotary drive assembly includes a high-temperature resistant motor (21) fixedly mounted on the top of the heat exchange tank (4); an output shaft of the high-temperature resistant motor (21) extends into the interior of the heat exchange tank (4) and is fixedly mounted with a worm (22); a worm wheel (23) is fixedly mounted on the surface of the heat exchange coil (20); and the worm wheel (23) is meshed with the worm wheel (22).

8. The industrial steam supply device based on molten salt energy storage according to claim 1, characterized in that: The top ends of the high-temperature tank (2) and the low-temperature tank (3) are both embedded with electronic thermometers (24).

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