Molten salt heat exchanger for exchanging heat by using high-temperature flue gas

Abstract

The utility model discloses a fused salt heat exchanger utilizing high-temperature flue gas for heat exchange, which comprises two frames, positioning grooves are symmetrically formed in one sides of the interiors of the frames, supporting rods are connected to the upper and lower ends of the interiors of the frames in a sliding manner, and a limiting frame is connected to one end of the outer side of each supporting rod in a sliding manner. The first support and the second support are rotationally connected with the rotating part, so that the first support and the second support can be better attached to the surface of the heat exchanger plate piece through the gravity of the first support and the second support, and the first support and the second support can drive the cleaning brush to clean dust on the surface of the heat exchanger plate piece under driving of the forward and reverse motor. And an external air pump is used for spraying air into the flow dividing hose, the spray heads arranged in the first support and the second support are used for blowing air to the surface of the heat exchanger plate, and then blowing is carried out while wiping is carried out, so that the cleaning effect on the molten salt heat exchanger can be improved, and the heat exchange efficiency of the molten salt heat exchanger can be effectively improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of heat exchangers, and particularly relates to a molten salt heat exchanger that uses high-temperature flue gas for heat exchange. Background Art

[0002] A molten salt heat exchanger is a device that uses molten salt as a heat transfer medium to conduct heat exchange in a high-temperature environment. It is widely used in industries such as solar thermal power generation, chemical engineering, and metallurgy, and is remarkable for its excellent thermal stability, high-temperature heat transfer capacity, and corrosion resistance.

[0003] The molten salt heat exchanger has two structures: tubular and plate-type. However, after the plate-type molten salt heat exchanger has been used for a long time, a large amount of dust will adhere to its surface, which will directly affect the heat exchange efficiency, so it is difficult to meet the long-term use requirements of the molten salt heat exchanger. Summary of the Utility Model

[0004] The technical problem to be solved by the utility model is to overcome the existing defects and provide a molten salt heat exchanger that uses high-temperature flue gas for heat exchange, so as to solve the problem that the molten salt heat exchanger has two structures: tubular and plate-type. However, after the plate-type molten salt heat exchanger has been used for a long time, a large amount of dust will adhere to its surface, which will directly affect the heat exchange efficiency, so it is difficult to meet the long-term use requirements of the molten salt heat exchanger as mentioned in the above background art.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A molten salt heat exchanger that uses high-temperature flue gas for heat exchange, including a frame. There are two frames. On one side inside the frame, positioning grooves are symmetrically opened. At the upper and lower ends inside the frame, support rods are slidably connected. One end of the outer side of the support rod is slidably connected with a limiting frame. Between the two frames, there is a heat exchanger plate. A positioning rod is snap-fitted inside the positioning groove. A bearing seat is fixedly connected to the top of the frame. A screw rod is rotatably connected inside the bearing seat. One end of the screw rod is fixedly connected with a forward and reverse motor. A rotating part is threadedly connected to the outer side of the screw rod. The outer side of the rotating part is respectively rotatably connected with a first bracket and a second bracket. A cleaning brush is fixedly connected to the inner side of the second bracket.

[0006] Preferably, feet are symmetrically and fixedly connected to the bottom of the frame.

[0007] Preferably, a first nut is threadedly connected to one end of the outer side of the support rod close to the limiting frame.

[0008] Preferably, the heat exchanger plate is located between the two support rods.

[0009] Preferably, the two frames are fixedly connected by the positioning rod and a second nut. An elastic gasket is provided for the second nut.

[0010] Preferably, one side of the frame is fixedly connected with a molten salt inlet / outlet and a flue gas inlet / outlet respectively, and one end of the molten salt inlet / outlet is fixedly connected with a connecting flange.

[0011] Preferably, the forward and reverse motor is fixedly connected to one side of the bearing seat.

[0012] Preferably, the tops of the first bracket and the second bracket are both fixedly connected with shunt hoses, spray nozzles are arranged inside the first bracket and the second bracket, and the interiors of the first bracket and the second bracket are both hollow structures.

[0013] Compared with the prior art, the utility model provides a molten salt heat exchanger using high-temperature flue gas for heat exchange, and has the following beneficial effects:

[0014] 1. By arranging a molten salt heat exchanger using high-temperature flue gas for heat exchange, during the long-term operation of the molten salt heat exchanger, by driving the forward and reverse motor arranged at the top of the frame, the rotating part drives the first bracket and the second bracket to perform reciprocating movement under the screw rotation of the screw. However, the first bracket and the second bracket are respectively rotatably connected to the rotating part, so that they can better fit the surface of the heat exchanger plate by their own gravity. Driven by the forward and reverse motor, the first bracket and the second bracket can drive the cleaning brush to clean the dust on the surface of the heat exchanger plate, and use an external air pump to blow air into the shunt hose, and the spray nozzles arranged inside the first bracket and the second bracket blow air on the surface of the heat exchanger plate. Thus, while wiping and blowing air, the cleaning effect of the molten salt heat exchanger can be improved, and the heat exchange efficiency of the molten salt heat exchanger can be effectively improved;

[0015] 2. By arranging a disassembly and assembly convenient mechanism composed of a frame, a positioning groove, a support rod, a limiting frame, a first nut, a heat exchanger plate, a positioning rod, a second nut and an elastic gasket, during the installation of the heat exchanger plate, the support rod can position the heat exchanger plate, and then it is fixed by the positioning rod and the second nut. The frame is arranged to slide outside the support rod and can be adjusted according to the number of heat exchanger plates to be installed. Therefore, the device has the advantages of quick disassembly and assembly.

[0016] The parts not involved in this device are the same as those in the prior art or can be realized by using the prior art. The structure of the utility model is scientific and reasonable, safe and convenient to use, and provides great help to people. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings are used to provide further understanding of the utility model, and constitute a part of the specification. Together with the embodiments of the utility model, they are used to explain the utility model, and do not constitute a limitation to the utility model. In the drawings:

[0018] Figure 1Axonometric structural schematic diagram of one side of a molten salt heat exchanger using high-temperature flue gas heat exchange proposed by the present utility model;

[0019] Figure 2 Axonometric structural schematic diagram of the other side of a molten salt heat exchanger using high-temperature flue gas heat exchange proposed by the present utility model;

[0020] Figure 3 Front view structural schematic diagram of a molten salt heat exchanger using high-temperature flue gas heat exchange proposed by the present utility model;

[0021] Figure 4 Screw structural schematic diagram of a molten salt heat exchanger using high-temperature flue gas heat exchange proposed by the present utility model;

[0022] Figure 5 Cleaning brush structural schematic diagram of a molten salt heat exchanger using high-temperature flue gas heat exchange proposed by the present utility model;

[0023] In the figure: frame 1, footrest 2, positioning groove 3, support rod 4, limiting frame 5, first nut 6, heat exchanger plate 7, positioning rod 8, second nut 9, elastic gasket 10, molten salt inlet and outlet 11, flue gas inlet and outlet 12, connecting flange 13, bearing seat 14, screw 15, positive and negative motor 16, rotating part 17, first bracket 18, second bracket 19, cleaning brush 20, shunt hose 21, nozzle 22. Specific implementation manners

[0024] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0025] Please refer to Figures 1-5, the present utility model provides a technical solution: a molten salt heat exchanger using high-temperature flue gas heat exchange, which includes two frames 1. On one side inside the frame 1, positioning grooves 3 are symmetrically opened. At the upper and lower ends inside the frame 1, support rods 4 are slidably connected. At one end outside the support rod 4, a limiting frame 5 is slidably connected. Between the two frames 1, there is a heat exchanger plate 7. Inside the positioning groove 3, a positioning rod 8 is snap-connected. At the top of the frame 1, a bearing seat 14 is fixedly connected. Inside the bearing seat 14, a screw rod 15 is rotatably connected. At one end of the screw rod 15, a forward and reverse motor 16 is fixedly connected. Outside the screw rod 15, a rotating member 17 is threadedly connected. Outside the rotating member 17, a first bracket 18 and a second bracket 19 are respectively rotatably connected. Inside the second bracket 19, a cleaning brush 20 is fixedly connected. By driving the forward and reverse motor 16 provided at the top of the frame 1, the rotating member 17 drives the first bracket 18 and the second bracket 19 to perform reciprocating movement under the screw rotation of the screw rod 15. However, the provided first bracket 18 and second bracket 19 are respectively rotatably connected to the rotating member 17, so that they can better fit the surface of the heat exchanger plate 7 by their own gravity. Driven by the forward and reverse motor 16, the first bracket 18 and the second bracket 19 can drive the cleaning brush 20 to clean the dust on the surface of the heat exchanger plate 7. And by using an external air pump to blow air into the shunt hose 21, the nozzles 22 provided inside the first bracket 18 and the second bracket 19 blow air on the surface of the heat exchanger plate 7. Thus, while wiping and blowing air, the cleaning effect of the molten salt heat exchanger can be improved.

[0026] In the present utility model, preferably, feet 2 are symmetrically and fixedly connected to the bottom of the frame 1.

[0027] In the present utility model, preferably, a first nut 6 is threadedly connected to one end of the support rod 4 outside the limiting frame 5.

[0028] In the present utility model, preferably, the heat exchanger plate 7 is located between the two support rods 4.

[0029] In the present utility model, preferably, the two frames 1 are fixedly connected by the positioning rod 8 and the second nut 9, and an elastic gasket 10 is provided on the second nut 9.

[0030] In the present utility model, preferably, a molten salt inlet and outlet 11 and a flue gas inlet and outlet 12 are respectively fixedly connected to one side of the frame 1. One end of the molten salt inlet and outlet 11 is fixedly connected with a connecting flange 13.

[0031] In the present utility model, preferably, the forward and reverse motor 16 is fixedly connected to one side of the bearing seat 14.

[0032] In the present utility model, preferably, the tops of the first bracket 18 and the second bracket 19 are fixedly connected with a shunt hose 21, spray nozzles 22 are provided on the inner sides of the first bracket 18 and the second bracket 19, and the interiors of the first bracket 18 and the second bracket 19 are of a hollow structure.

[0033] The working principle and usage process of the present utility model: During use, the positive and negative motor 16 drives the rotation of the screw 15 in the bearing block 14, driving the rotating member 17 connected by threads, so that the first bracket 18 and the second bracket 19 achieve reciprocating movement. The rotation connection of these two brackets with the rotating member 17 enables them to closely adhere to the surface of the heat exchanger plate 7 by their own gravity. At the same time, the cleaning brush 20 on the inner side of the bracket wipes and cleans the surface of the plate. During the cleaning process, an external air pump jets air into the shunt hose 21, and the spray nozzles 22 provided in the first bracket 18 and the second bracket 19 blow air on the surface of the heat exchanger plate 7, achieving wiping and blowing simultaneously to improve the cleaning effect. The feet 2 symmetrically fixedly connected to the bottom of the frame 1 ensure the stability of the device. The first nut 6 on the outer side of the support rod 4 and the limit frame 5 cooperate to adjust the position of the heat exchanger plate 7. The positioning groove 3 inside the frame 1 is engaged with the positioning rod 8, and the two frames 1 are fixed by the second nut 9 and the elastic gasket 10 to ensure the structural stability. The settings of the molten salt inlet and outlet 11 and the flue gas inlet and outlet 12 enable the molten salt and the flue gas to flow in and out of the heat exchanger smoothly. The configuration of the connecting flange 13 facilitates pipeline connection. Generally speaking, the present utility model improves the maintenance efficiency and cleanliness of the molten salt heat exchanger through mechanized and automated cleaning methods, ensuring the heat exchange efficiency and service life.

[0034] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A molten salt heat exchanger using high-temperature flue gas for heat exchange, comprising a frame (1), characterized in that: There are two of the frames (1). On one side inside the frame (1), positioning grooves (3) are symmetrically opened. At the upper and lower ends inside the frame (1), support rods (4) are slidably connected. One end of the outer side of the support rod (4) is slidably connected with a limit frame (5). A heat exchanger plate (7) is arranged between the two frames (1). A positioning rod (8) is snap-connected inside the positioning groove (3). A bearing seat (14) is fixedly connected to the top of the frame (1). A screw rod (15) is rotatably connected inside the bearing seat (14). One end of the screw rod (15) is fixedly connected with a reversible motor (16). A rotating member (17) is threadedly connected to the outer side of the screw rod (15). The outer side of the rotating member (17) is respectively rotatably connected with a first bracket (18) and a second bracket (19). A cleaning brush (20) is fixedly connected to the inner side of the second bracket (19).

2. The molten salt heat exchanger using high-temperature flue gas heat exchange according to claim 1, wherein: The bottom of the frame (1) is symmetrically fixedly connected with feet (2).

3. The molten salt heat exchanger using high-temperature flue gas for heat exchange according to claim 1, wherein: A first nut (6) is threadedly connected to one end of the outer side of the support rod (4) close to the limit frame (5).

4. A molten salt heat exchanger using high-temperature flue gas for heat exchange according to claim 1, characterized in that: The heat exchanger plate (7) is located between the two support rods (4).

5. A molten salt heat exchanger using high-temperature flue gas for heat exchange according to claim 1, characterized in that: The two frames (1) are fixedly connected by the positioning rod (8) and a second nut (9). An elastic gasket (10) is provided on the second nut (9).

6. The molten salt heat exchanger using high-temperature flue gas heat exchange according to claim 1, wherein: One side of the frame (1) is respectively fixedly connected with a molten salt inlet / outlet (11) and a flue gas inlet / outlet (12). One end of the molten salt inlet / outlet (11) is fixedly connected with a connecting flange (13).

7. The molten salt heat exchanger using high-temperature flue gas for heat exchange according to claim 1, wherein: The reversible motor (16) is fixedly connected to one side of the bearing seat (14).

8. A molten salt heat exchanger using high-temperature flue gas for heat exchange according to claim 1, characterized in that: The tops of the first bracket (18) and the second bracket (19) are both fixedly connected with a shunt hose (21). Spray nozzles (22) are opened on the inner sides of the first bracket (18) and the second bracket (19). The interiors of the first bracket (18) and the second bracket (19) are both hollow structures.

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