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 has a multi-state pressure relief mode, can release redundant high pressure when equipment works, improves the performance and the service life of the equipment, and is beneficial to industrial production. The pressure relief structure comprises a heat exchange body and is characterized in that the pressure relief structures used for molten salt heat exchange are symmetrically distributed on the two sides of the middle of the heat exchange body.

Description

Technical Field

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

[0002] Molten salt heat exchangers are usually under high pressure when working. The performance and life of the equipment under high pressure will be greatly affected by the high pressure. The existing molten salt heat exchangers are equipped with a pressure relief device with a single function, which can only be opened when the pressure reaches the highest danger limit. The exchanger works under a high pressure state for a long time, resulting in reduced performance and service life of the molten salt heat exchanger, which is very unfavorable to industrial production. Utility Model Content

[0003] In view of the shortcomings of the existing molten salt heat exchanger discharge device, which has a single function, the equipment is in a relatively high pressure state for a long time, and the equipment performance and life are reduced, the utility model provides a molten salt heat exchanger with good pressure relief capability. The utility model has a multi-state pressure relief method, which can discharge excess high pressure when the equipment is working. The performance and life of the equipment are improved, which is beneficial to industrial production.

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

[0005] It comprises a heat exchange body, which is characterized in that the pressure relief structure used for molten salt heat exchange is symmetrically distributed on both sides of the middle part of the heat exchange body.

[0006] It is further characterized by:

[0007] The pressure relief structure includes a pressure relief cabin, wherein a first pressure relief chamber and a second pressure relief chamber are connected to each other, and the second pressure relief chamber is connected to the interior of the heat exchanger body, and a butterfly valve is arranged inside the second pressure relief chamber, and the valve stem of the butterfly valve passes upward through the pressure relief cabin to connect to a rotator installed on the surface of the pressure relief cabin, and an operating disk is installed on one side of the rotator, which is located behind the butterfly valve, and a plurality of pressure relief holes are arranged on the inner walls on both sides of the second pressure relief chamber, which penetrate the pressure relief cabin;

[0008] The pressure relief structure includes a linkage frame, a gate valve is arranged inside the first pressure relief chamber, the valve stem of the gate valve passes upward through the pressure relief chamber and is respectively fixedly connected to two ends of the linkage frame, a top plate is arranged above the linkage frame, a top plate cylinder is installed on the surface of the top plate, and the protruding end of the piston rod of the top plate cylinder passes through the top plate and is fixedly connected to the linkage frame.

[0009] In the above technical solution, the technical effects and advantages provided by the utility model are:

[0010] The second pressure relief chamber in the pressure relief structure is provided, which can discharge the excessive pressure through the pressure relief hole through the butterfly valve when the molten salt heat exchanger is working, and at the same time can not affect the normal operation of the equipment, and the equipment does not need to work under high pressure for a long time, which indirectly improves the performance of the molten salt heat exchanger and directly increases its service life;

[0011] The first pressure relief chamber in the pressure relief structure cooperates with the second pressure relief chamber. When the gate valve and the butterfly valve are opened at the same time, all the pressure in the stopped molten salt heat exchanger can be released. The equipment does not need to release pressure autonomously over time, ensuring that the performance and life of the molten salt heat exchanger will not be affected by high pressure during and after work, which is beneficial to industrial production. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a front view of the overall structure of the utility model;

[0013] Figure 2 It is a top view of the overall structure of the utility model;

[0014] Figure 3 It is a schematic diagram of the pressure relief structure of the utility model;

[0015] Figure 4 This is a cross-sectional view of the pressure relief structure of the utility model when it is fully closed;

[0016] Figure 5 It is a cross-sectional view of the butterfly valve of the pressure relief structure of the utility model when it is turned open;

[0017] Description of reference numerals:

[0018] 1. Heat exchanger body; 2. Top plate; 3. Linkage frame; 4. Pressure relief chamber; 5. First pressure relief chamber; 6. Second pressure relief chamber; 7. Gate valve; 8. Butterfly valve; 9. Rotator; 10. Operating disk; 11. Pressure relief hole; 12. Top plate cylinder. DETAILED DESCRIPTION

[0019] The utility model provides Figure 1-Figure 5 A molten salt heat exchanger with good pressure relief capability is shown, which comprises a heat exchange body 1, and pressure relief structures used for molten salt heat exchange are symmetrically distributed on both sides of the middle part of the heat exchange body 1;

[0020] See Figure 4 , Figure 5The pressure relief structure includes a pressure relief cabin 4, wherein a first pressure relief chamber 5 and a second pressure relief chamber 6 which are interconnected are arranged inside the pressure relief cabin 4, and the second pressure relief chamber 6 is connected to the inside of the heat exchanger body 1, and a butterfly valve 8 is arranged inside the second pressure relief chamber 6, and the valve stem of the butterfly valve 8 passes upward through the pressure relief cabin 4 to connect to a rotator 9 installed on the surface of the pressure relief cabin 4, and an operating disk 10 is installed on one side of the rotator 9, which is located behind the butterfly valve 8, and a number of pressure relief holes 11 which penetrate the pressure relief cabin 4 are arranged on the inner walls on both sides of the second pressure relief chamber 6. When the molten salt heat exchanger is working and faces excessive internal high pressure, the butterfly valve 8 can be rotated by rotating the operating disk 10, and at this time, the second pressure relief chamber 6 is in a closed state, and the pressure drop is released by the pressure relief hole 11, and at this time, the pressure relief is in an adjustable state, which can not only ensure the pressure inside the heat exchange body 1, but also release the excess high pressure beyond the defined range;

[0021] See Figure 3 The pressure relief structure includes a linkage frame 3, a gate valve 7 is arranged inside the first pressure relief chamber 5, and the valve stem of the gate valve 7 passes upward through the pressure relief chamber 4 and is fixedly connected to the two ends of the linkage frame 3 (see Figure 3 ), a top plate 2 is arranged above the linkage frame 3, a top plate cylinder 12 is installed on the surface of the top plate 2, the extended end of the piston rod of the top plate cylinder 12 passes through the top plate 2 and the linkage frame 3 and is fixedly connected. When the heat exchanger body 1 stops working, the butterfly valve 8 and the gate valve 7 are opened in sequence. At this time, the high pressure inside the heat exchanger body 1 will be completely discharged, and the influence of the high pressure on the equipment will be greatly reduced.

Claims

1. A molten salt heat exchanger with good pressure relief capability, comprising a heat exchange body, characterized in that: The pressure relief structures used for molten salt heat exchange are symmetrically distributed on both sides of the middle part of the heat exchange body.

2. A molten salt heat exchanger with good pressure relief capability according to claim 1, characterized in that: The pressure relief structure includes a pressure relief cabin, a first pressure relief chamber and a second pressure relief chamber which are interconnected are arranged inside the pressure relief cabin, and the second pressure relief chamber is connected to the interior of the heat exchanger body, a butterfly valve is arranged inside the second pressure relief chamber, the valve stem of the butterfly valve passes upward through the pressure relief cabin and is connected to a rotator installed on the surface of the pressure relief cabin, an operating disk is installed on one side of the rotator, and is located behind the butterfly valve, and a number of pressure relief holes which penetrate the pressure relief cabin are arranged on the inner walls on both sides of the second pressure relief chamber.

3. A molten salt heat exchanger with good pressure relief capability according to claim 2, characterized in that: The pressure relief structure includes a linkage frame, a gate valve is arranged inside the first pressure relief chamber, the valve stem of the gate valve passes upward through the pressure relief chamber and is respectively fixedly connected to two ends of the linkage frame, a top plate is arranged above the linkage frame, a top plate cylinder is installed on the surface of the top plate, and the protruding end of the piston rod of the top plate cylinder passes through the top plate and is fixedly connected to the linkage frame.

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