Molten salt heat exchanger with good pressure relief capability

Abstract

The utility model discloses a fused salt heat exchanger with good pressure relief capability, which is used for discharging fused salt steam in a filtering manner, so that the influence on the ecological environment is reduced, and the green production of enterprises is facilitated. The fused salt heat exchanger comprises a fused salt heat exchanger body, a plurality of finned tubes are arranged in the fused salt heat exchanger body, and the fused salt heat exchanger is characterized in that a collector plate for controlling liquid to enter and be discharged from the finned tubes is arranged at the head part of the fused salt heat exchanger body; and a steam discharge structure for discharging fused salt steam is arranged on a flow collecting discharge pipe arranged in the flow collecting plate.

Description

Technical Field

[0001] The utility model relates to the technical field of pressure relief devices for molten salt heat exchangers, in particular to a molten salt heat exchanger with good pressure relief capability. Background Art

[0002] The plate-type molten salt heat exchanger achieves an efficient heat exchange process through the circulation of molten salt and the heat transfer between the finned tubes. It is a highly efficient heat exchange equipment. When the existing plate-type molten salt heat exchanger is depressurized, it usually directly opens the pressure relief valve and discharges it to the outside. The liquid molten salt in it will also be discharged to the outside with the depressurized steam. There is a certain amount of harmful substances in the molten salt, and it will have a negative impact on the water body and soil ecology, which cannot meet the green production needs of enterprises. Utility Model Content

[0003] In view of the shortcomings of the existing plate-type molten salt heat exchanger that directly releases molten salt steam to the outside through pressure relief, which affects the ecological environment and cannot meet the needs of enterprises for green production, the utility model provides a molten salt heat exchanger with good pressure relief capability, which discharges molten salt steam in a filtered manner, reduces the impact on the ecological environment, and is conducive to green production of enterprises.

[0004] The utility model provides the following technical solutions:

[0005] It includes a molten salt heat exchanger body, in which a number of fin tubes are arranged and installed. It is characterized in that: the collecting plate for controlling the liquid to enter and discharge the fin tubes is installed at the head of the molten salt heat exchanger body, and the collecting and draining pipes arranged inside the collecting plate are provided with a steam discharge structure for discharging molten salt steam.

[0006] It is further characterized by:

[0007] The surface of the current collecting plate is symmetrically provided with a liquid inlet pipe and a liquid discharge pipe, and the liquid discharge pipe is embedded in the pipe opening inside the current collecting plate and fixedly connected with the current collecting and discharge pipe;

[0008] The steam discharge structure includes a pressure relief drain pipe and a control box. A pressure relief drain pipe is installed on the surface of the collecting drain pipe at the center plane position between the embedded ends of the drain pipe. The pressure relief drain pipe is fixedly connected to the control box through a bent pipe. The pipe opening of the bent pipe extending into the control box is provided with an upward opening. At the connection between the pressure relief drain pipe and the bent pipe, a water vapor filter cover is provided on the surface of the pressure relief drain pipe. The water vapor filter cover can separate a part of the molten salt water vapor in the filter cover during pressure relief. A control butterfly valve is provided in the control box for controlling the discharge of molten salt steam. The control handle of the control butterfly valve fits the side wall of the control box.

[0009] A molten salt steam discharge pipe is installed on the upper surface of the control box, and a filter screen is arranged inside the molten salt steam discharge pipe.

[0010] In the above technical solution, the technical effects and advantages provided by the utility model are:

[0011] By setting up a steam discharge structure with filtering ability to discharge molten salt steam, harmful substances and impurities in the molten salt steam can be effectively removed, reducing pollution to the environment and reducing the company's investment in environmental protection, which is beneficial to the company's green production;

[0012] The water vapor filter can separate the liquid molten salt and collect it back into the collecting and draining pipe, which is beneficial to reduce the overall energy consumption of molten salt and facilitate green production of enterprises;

[0013] The filter further removes impurities from the molten salt steam, preventing harmful substances contained in the molten salt from being directly discharged into the external environment, reducing the hazards of molten salt steam emissions and further ensuring the implementation of green production. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the fin tube structure of the utility model;

[0016] Figure 3 This is a schematic diagram of the structure of the current collecting plate of the utility model;

[0017] Figure 4 This is a cross-sectional view of the collector plate structure of the utility model;

[0018] Figure 5 This is a schematic diagram of the steam discharge structure of the utility model;

[0019] Figure 6 It is an exploded diagram of the steam exhaust structure of the utility model;

[0020] Figure 7 This is a schematic diagram of the filter structure of the utility model.

[0021] Description of reference numerals:

[0022] 1. Molten salt heat exchanger body; 2. Fin tube; 3. Collecting plate; 4. Liquid inlet pipe; 5. Liquid discharge pipe; 6. Collecting drain pipe; 7. Pressure relief drain pipe; 8. Bending pipe; 9. Filter screen; 10. Water vapor filter cover; 11. Molten salt steam discharge pipe; 12. Control butterfly valve; 13. Control box. DETAILED DESCRIPTION

[0023] The utility model provides Figure 1-Figure 7A molten salt heat exchanger with good pressure relief capability is shown, which comprises a molten salt heat exchanger body 1, a plurality of fin tubes 2 are arranged in an array inside the molten salt heat exchanger body 1, a collecting plate 3 for controlling the liquid to enter and discharge the fin tubes 2 is installed at the head of the molten salt heat exchanger body 1, and a steam discharge structure for discharging molten salt steam is provided on a collecting and draining pipe 6 arranged inside the collecting plate 3;

[0024] See Figure 3 , Figure 4 The surface of the current collecting plate 3 is symmetrically provided with a liquid inlet pipe 4 and a liquid discharge pipe 5, and the liquid discharge pipe 5 is embedded in the pipe opening inside the current collecting plate 3 and is fixedly connected with the current collecting and discharge pipe 6;

[0025] See Figure 4 , Figure 5 , Figure 6 The steam discharge structure includes a pressure relief pipe 7 and a control box 13. At the center plane position between the embedded ends of the drain pipe 5, a pressure relief pipe 7 is installed on the surface of the collecting pipe 6. The pressure relief pipe 7 is fixedly connected to the control box 13 through a bent pipe 8. The pipe opening of the bent pipe 8 extending into the interior of the control box 3 is provided with an upward opening (see Figure 6 ), at the connection between the pressure relief pipe 7 and the bending pipe 8, a water vapor filter cover 10 is arranged on the surface of the pressure relief pipe 7, and the water vapor filter cover 10 can separate the liquid molten salt moving with the steam in the filter cover during pressure relief, and the liquid molten salt will flow back to the collecting pipe 6 under the action of gravity, and a control butterfly valve 12 for controlling the discharge of molten salt steam is arranged in the control box 3, and the control handle of the control butterfly valve 12 is attached to the side wall of the control box 3, and a molten salt steam discharge pipe 11 is installed on the upper surface of the control box 3, and a filter screen 9 is arranged in the pipe of the molten salt steam discharge pipe 11, and the filter screen 9 can isolate the impurities in the pressure-relieved molten salt steam in the control box 13, and quantitative pressure relief and overall pressure relief can be achieved by controlling the butterfly valve 12, and the molten salt steam to be discharged during pressure relief is also further processed, which is beneficial to the production.

Claims

1. A molten salt heat exchanger with good pressure relief capability, comprising a molten salt heat exchanger body, wherein a plurality of fin tubes are arranged in an array inside the molten salt heat exchanger body, characterized in that: The collecting plate for controlling the liquid to enter and discharge the fin tubes is installed at the head of the molten salt heat exchanger body, and the collecting and draining pipes arranged inside the collecting plate are provided with a steam discharge structure for discharging molten salt steam.

2. A molten salt heat exchanger with good pressure relief capability according to claim 1, characterized in that: A liquid inlet pipe and a liquid discharge pipe are symmetrically installed on the surface of the current collecting plate, and the liquid discharge pipe is embedded in the pipe opening inside the current collecting plate and is fixedly connected with the current collecting and discharge pipe.

3. A molten salt heat exchanger with good pressure relief capability according to claim 2, characterized in that: The steam exhaust structure includes a pressure relief drain pipe and a control box. A pressure relief drain pipe is installed on the surface of the collecting drain pipe at the center plane position between the embedded ends of the drain pipe. The pressure relief drain pipe is fixedly connected to the control box through a bending pipe. The pipe opening of the bending pipe extending into the control box is provided with an upward opening. At the connection between the pressure relief drain pipe and the bending pipe, a water vapor filter cover is provided on the surface of the pressure relief drain pipe. The water vapor filter cover can separate a part of the molten salt water vapor in the filter cover when the pressure is released. A control butterfly valve is provided in the control box to control the molten salt steam exhaust. The control handle of the control butterfly valve fits the side wall of the control box.

4. A molten salt heat exchanger with good pressure relief capability according to claim 3, characterized in that: A molten salt steam discharge pipe is installed on the upper surface of the control box, and a filter screen is arranged inside the molten salt steam discharge pipe.

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