Two-section kettle type molten salt heat exchanger

Abstract

The utility model relates to a two-section kettle type molten salt heat exchanger which comprises a shell and a heat exchange mechanism arranged in the shell, the heat exchange mechanism can conduct heat exchange on media, a partition plate is fixedly connected in the shell in the vertical direction, and a discharging port for discharging molten salt is formed in the bottom of the partition plate and the bottom of the shell. A sealing door is slidably connected into the partition plate in the vertical direction and can be attached to the inner wall of the shell, a moving rod is fixedly connected to the sealing door and elastically slidably connected with the partition plate, a connecting plate is fixedly connected to the moving rod, a first semicircular block is fixedly connected to the connecting plate, and a second semicircular block is horizontally slidably connected to the shell in a driven mode. And the first semicircular block and the second semicircular block are oppositely arranged, molten salt is preheated in advance, so that heat exchange between a medium with a relatively low temperature and molten salt with a relatively high temperature can be reduced, the situation that the pipeline is cracked due to high heat and high cold is further reduced, and the service life of the pipeline is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of molten salt heat exchangers, in particular to a two-stage kettle type molten salt heat exchanger. Background Art

[0002] Molten salt heat exchanger is a heat exchange equipment that uses molten salt as a medium. Its working principle is to set up a heat exchange pipe in the tank. When the heat exchange liquid passes through the heat exchange pipe, the molten salt is used to exchange heat with the heat exchange pipe, so that the heat exchange pipe conducts heat to the liquid in the pipe, thereby realizing heat exchange of the liquid. This heat exchanger has the advantages of high heat exchange efficiency, good compatibility, strong corrosion resistance, etc., and is widely used in solar energy, heat pumps, chemical industry and other fields;

[0003] Although the above scheme can heat the medium, when the temperature of the medium is low, the medium is in a low temperature state, and the heat exchange pipe is in a high temperature state during heat exchange. Once the low-temperature medium directly enters the heat exchange pipe, the heat exchange pipe will be affected by the medium temperature and cool down rapidly. In order to achieve the effect of heat exchange, molten salt will be used to heat the heat exchange pipe. Therefore, the heat exchange pipe will be in a state of rapid heating and cooling. When the heat exchange pipe is rapidly heated and cooled for a long time, it is easy to cause cracks in the heat exchange pipe, thereby reducing the service life of the heat exchange pipe. Summary of the invention

[0004] The purpose of the utility model is to solve the problems in the prior art and to provide a two-stage kettle-type molten salt heat exchanger, which can increase the service life of the heat exchange pipeline.

[0005] To achieve the above purpose, the utility model proposes a two-stage kettle-type molten salt heat exchanger, comprising: a shell and a heat exchange mechanism arranged in the shell, the heat exchange mechanism can exchange heat for the medium, and a feed pipe is fixedly connected to the shell through the shell.

[0006] A partition plate is fixedly connected in a vertical direction in the shell, and a discharge port for discharging molten salt exists between the partition plate and the bottom of the shell;

[0007] A sealing door is vertically slidably connected in the partition plate, and the sealing door can be attached to the inner wall of the shell. A moving rod 1 is fixedly connected to the sealing door, and the moving rod 1 is elastically slidably connected to the partition plate. A connecting plate is fixedly connected to the moving rod, and a semicircular block 1 is fixedly connected to the connecting plate. A semicircular block 2 is driven horizontally slidably connected to the shell, and the semicircular block 1 is arranged opposite to the semicircular block 2.

[0008] A discharge pipe is fixedly connected through the shell body, and a sealing mechanism is provided on the discharge pipe, and the sealing mechanism can seal the discharge pipe.

[0009] Preferably, the sealing mechanism comprises: a moving rod 2, a semicircular block 3 and a support plate, the moving rod 2 is slidably connected in the shell, and one end of the moving rod 2 passes through the shell, the semicircular block 3 is fixedly connected to the moving rod, and the semicircular block 3 is arranged opposite to the semicircular block 1, the support plate is slidably connected to the discharge pipe, and a high-strength spring is fixedly connected to the discharge pipe, the high-strength spring is fixedly connected to the support plate, and the moving rod 2 is fixedly connected to the top surface of the support plate.

[0010] Preferably, the support plate is slidably connected with a telescopic plate, the telescopic plate is swingably connected with a sealing plate, and one end of the sealing plate is swingably connected with the discharge pipe.

[0011] Preferably, a sealing block is fixedly connected to the top surface of the sealing plate, the top surface of the sealing block is arranged in an arc shape, the bottom surface of the discharge pipe is arranged in an arc shape, and the sealing block can be attached to the arc surface of the discharge pipe.

[0012] Preferably, a guide block with an inclined top surface is fixedly connected in the shell, and one end of the guide block is located on one side of the partition plate.

[0013] Preferably, a discharging block is elastically slidably connected to the guide block, the top surface of the discharging block is inclined, and the discharging block can be attached to the bottom surface of the sealing door.

[0014] Preferably, a temperature sensor is fixedly connected inside the shell, and a temperature display electrically connected to the temperature sensor is fixedly connected on the shell.

[0015] Preferably, a heat insulation board is fixedly connected to the inner wall of the partition plate.

[0016] The beneficial effects of the utility model are as follows: compared with the prior art, the utility model divides the shell by a partition plate arranged on the shell, and then divides the inner chamber of the shell by a sealing door, so that molten salts of two temperatures are accumulated in the inner chamber of the shell, one end of which has a lower temperature and the other end has a higher temperature. The molten salt with a lower temperature is used to preheat the medium, while the molten salt with a higher temperature is mainly used to exchange heat with the medium, thereby heating the medium in two stages to achieve heat exchange of the medium. By preheating the molten salt in advance, the heat exchange between the medium with a lower temperature and the molten salt with a higher temperature can be reduced, further reducing the possibility of cracks in the pipeline due to high heat and high cold, thereby improving the service life of the pipeline.

[0017] The features and advantages of the present invention will be described in detail through embodiments in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the utility model;

[0019] Figure 2 It is a schematic diagram of the position of the semicircular block three of the utility model;

[0020] Figure 3 It is a schematic diagram of the position of the heat exchange mechanism of the utility model.

[0021] In the figure: 1. shell; 2. heat exchange mechanism; 3. feed pipe; 4. partition plate; 5. discharge port; 6. sealing door; 7. moving rod one; 8. connecting plate; 9. semicircular block one; 10. semicircular block two; 11. discharge pipe; 12. sealing mechanism; 13. moving rod two; 14. semicircular block three; 15. support plate; 16. high-strength spring; 17. telescopic plate; 18. sealing plate; 19. sealing block; 20. guide block; 21. discharge block; 22. temperature sensor; 23. temperature display; 24. heat insulation board; 25. cylinder one; 26. spring three; 27. spring four. DETAILED DESCRIPTION

[0022] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0023] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0024] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0025] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0026] See also Figures 1 to 3A two-stage kettle-type molten salt heat exchanger comprises: a shell 1 and a heat exchange mechanism 2 arranged in the shell 1, the heat exchange mechanism 2 can exchange heat with the medium, a feed pipe 3 is fixedly connected to the shell 1, wherein the heat exchange mechanism 2 is a heat exchange pipe, the heat exchange pipe is fixedly connected in the shell 1, and the feed pipe 3 is mainly used to add molten salt;

[0027] The heat exchanger in the utility model further includes a partition plate 4, a sealing door 6, a moving rod 7, a connecting plate 8, a semicircular block 1 9, a semicircular block 2 10, a discharge pipe 11 and a sealing mechanism 12, wherein the partition plate 4 is fixedly connected to the shell 1 to separate the chambers in the shell 1, and there is a discharge port 5 between the partition plate 4 and the inner wall at the bottom of the shell 1, which is mainly used to transfer the molten salt to the other side of the partition plate 4. When the medium needs to exchange heat, the medium enters the heat exchange tube, and the molten salt on one side of the partition plate 4 is used to preheat the medium in the heat exchange tube. Heat is exchanged with the molten salt on the other side of the partition plate 4, thereby realizing heat exchange of the medium and reducing the situation where the temperature difference between the medium and the molten salt is large and the heat exchange tube cracks appear. When the temperature of the molten salt in the shell 1 drops to a certain level, the semicircular block 2 slidably connected to the shell 1 is driven by the cylinder 1 25 fixedly connected to the shell 1 to move. The semicircular block 2 is fixedly connected to the output shaft of the cylinder 1 25, so the cylinder 1 25 will drive the semicircular block 2 10 to move. When the semicircular block 2 10 moves to the semicircular block 2 fixedly connected to the connecting plate 8, the semicircular block 2 When the semicircular block 19 is on the housing 1, the semicircular block 2 10 will push the semicircular block 19 to move, so that the semicircular block 19 is above, and when the semicircular block 19 rises, the semicircular block 19 will drive the connecting plate 8 which is slidably connected to the housing 1 and fixedly connected to the moving rod 17 at one end to move, and the connecting plate 8 drives the moving rod 17 which is slidably connected in the housing 1 to move, so that the moving rod 17 drives the sealing door 6 which is slidably connected to the partition plate 4 and fixedly connected to the moving rod 17 to move, so that the discharge port 5 is opened, and the molten salt will enter the other end of the partition plate 4 side, so that it is at a temperature for preheating the exchange tube. Prior to this, since a discharge pipe 11 is fixedly connected through the shell 1, and a sealing mechanism 12 is provided on the discharge pipe 11, the sealing mechanism 12 is opened, and the molten salt is discharged through the shell 1 via the discharge pipe 11. When the molten salt is transmitted in the shell 1, the discharge pipe 11 is in a sealed state. It is worth mentioning that the moving rod 7 is slidably connected to the partition plate 4 through a spring four 27, and the spring four 27 is fixedly connected in the partition plate 4, and one end of the spring four 27 is fixedly connected to the moving rod 7.

[0028] Specifically, the sealing mechanism 12 includes: a moving rod 13, a semicircular block 14 and a support plate 15. When the discharge pipe 11 discharges the molten salt, the semicircular block 10 moves, and the semicircular block 10 drives the semicircular block 14, which is slidably connected to the shell 1 and one end of which is fixedly connected to the moving rod 13, to move, so that the semicircular block 14 drives the moving rod 13, which is slidably connected to the shell 1, to move. When the moving rod 13 moves, the moving rod 13 will push the support plate 15, one end of which is fixedly connected to it, to move, so as to open the discharge pipe 11 and then discharge the molten salt. When the support plate 15 needs to be reset, the semicircular block 10 continues to move or return, and the support plate 15 can be reset by using a high-strength spring fixedly connected to the discharge pipe 11 at one end and fixedly connected to the support plate 15.

[0029] Specifically, a telescopic plate 17 is slidably connected to the support plate 15, and one end of the telescopic plate 17 is swingably connected to a sealing plate 18, one end of the sealing plate 18 is swingably connected to the discharge pipe 11, and the telescopic plate 17 is telescoped on the support plate 15 by movement of the support plate 15. When the telescopic plate 17 is telescoped, the sealing plate 18 is driven to tilt, and the sealing plate 18 can not only seal the discharge pipe 11, but also guide the molten salt when the sealing plate 18 is in a tilted state.

[0030] Specifically, since the sealing block 19 is fixedly connected to the top surface of the sealing plate 18, the top surface of the sealing block 19 is arranged in a circular arc shape, the bottom surface of the discharge pipe 11 is arranged in a circular arc shape, and the sealing block 19 can be in contact with the circular arc surface of the discharge pipe 11, and the sealing block 19 is in contact with the discharge pipe 11, thereby achieving sealing of the discharge pipe 11, and further improving the sealing effect of the discharge pipe 11.

[0031] Specifically, since a guide block 20 with an inclined top surface is fixedly connected in the shell 1 , one end of the guide block 20 is located at one side of the partition plate 4 , and the guide block 20 is mainly used to guide the molten salt.

[0032] Specifically, the discharge block 21 is connected to the guide block 20 through the spring three 26, and the discharge block 21 can be used to guide the molten salt. The spring three 26 is fixedly connected in the guide block 20, and one end is fixedly connected to the discharge block 21, so that the discharge block 21 can be reset.

[0033] Specifically, a temperature sensor 22 is fixedly connected inside the shell 1, and a temperature display 23 electrically connected to the temperature sensor 22 is fixedly connected to the shell 1. The temperature inside the shell 1 is sensed by the temperature sensor 22 and a signal is transmitted to the temperature display 23. The temperature is displayed by the temperature display 23, which makes it convenient for personnel to check the temperature inside the shell 1.

[0034] Specifically, the heat insulation board 24 fixedly connected to the partition board 4 is mainly used to block the temperature.

[0035] The above embodiments are intended to illustrate the present invention, not to limit the present invention. Any solution that is a simple transformation of the present invention falls within the protection scope of the present invention.

Claims

1. A two-stage kettle-type molten salt heat exchanger, comprising: A shell (1) and a heat exchange mechanism (2) arranged in the shell (1), wherein the heat exchange mechanism (2) is capable of exchanging heat with a medium, and a feed pipe (3) is fixedly connected to and penetrates the shell (1), characterized in that: A partition plate (4) is fixedly connected in a vertical direction inside the shell (1), and a discharge port (5) for discharging molten salt is provided between the partition plate (4) and the bottom of the shell (1); A sealing door (6) is vertically slidably connected inside the partition plate (4), and the sealing door (6) can be attached to the inner wall of the shell (1). A moving rod (7) is fixedly connected to the sealing door (6), and the moving rod (7) is elastically slidably connected to the partition plate (4). A connecting plate (8) is fixedly connected to the moving rod (7), and a semicircular block (9) is fixedly connected to the connecting plate (8). A semicircular block (10) is driven horizontally slidably connected to the shell (1), and the semicircular block (9) is arranged opposite to the semicircular block (10). A discharge pipe (11) is fixedly connected through the housing (1), and a sealing mechanism (12) is provided on the discharge pipe (11). The sealing mechanism (12) is capable of sealing the discharge pipe (11).

2. A two-stage kettle-type molten salt heat exchanger according to claim 1, characterized in that: The sealing mechanism (12) comprises: a moving rod 2 (13), a semicircular block 3 (14) and a support plate (15); the moving rod 2 (13) is slidably connected in the shell (1), and one end of the moving rod 2 (13) passes through the shell (1); the semicircular block 3 (14) is fixedly connected to the moving rod 2 (13), and the semicircular block 3 (14) and the semicircular block 1 (9) are arranged opposite to each other; the support plate (15) is slidably connected to the discharge pipe (11); a high-strength spring (16) is fixedly connected to the discharge pipe (11); the high-strength spring (16) is fixedly connected to the support plate (15); and the moving rod 2 (13) is fixedly connected to the top surface of the support plate (15).

3. A two-stage kettle-type molten salt heat exchanger according to claim 2, characterized in that: The support plate (15) is slidably connected to a telescopic plate (17), the telescopic plate (17) is swingably connected to a sealing plate (18), and one end of the sealing plate (18) is swingably connected to the discharge pipe (11).

4. A two-stage kettle-type molten salt heat exchanger according to claim 3, characterized in that: The top surface of the sealing plate (18) is fixedly connected to a sealing block (19); the top surface of the sealing block (19) is arranged in an arc shape; the bottom surface of the discharge pipe (11) is arranged in an arc shape; and the sealing block (19) can be attached to the arc surface of the discharge pipe (11).

5. A two-stage kettle-type molten salt heat exchanger according to claim 1, characterized in that: A guide block (20) with an inclined top surface is fixedly connected inside the shell (1), and one end of the guide block (20) is located on one side of the partition plate (4).

6. A two-stage kettle-type molten salt heat exchanger according to claim 5, characterized in that: The guide block (20) is elastically slidably connected to a discharge block (21), the top surface of the discharge block (21) is inclined, and the discharge block (21) can be in contact with the bottom surface of the sealing door (6).

7. A two-stage kettle-type molten salt heat exchanger according to claim 6, characterized in that: A temperature sensor (22) is fixedly connected inside the shell (1), and a temperature display (23) electrically connected to the temperature sensor (22) is fixedly connected to the shell (1).

8. A two-stage kettle-type molten salt heat exchanger according to claim 1, characterized in that: A heat insulation board (24) is fixedly connected to the inner wall of the partition board (4).

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