An electric heating device for an FSRU warm-up system

Abstract

The utility model discloses a kind of electric heating device for FSRU cabin warming system, it is related to the technical field of cabin warming system;And the utility model includes control cabinet and pressure vessel, one end of pressure vessel away from control cabinet is fixed with gas outlet, the inside of pressure vessel is provided with electric heating element, the inside of pressure vessel is provided with several symmetrical distribution baffles;Pressure vessel has good protection and explosion-proof effect, the pressure vessel can be well insulated by insulation layer, while ensuring that the device operates well in low temperature environment, by baffle, the BOG natural gas entering is turned back, and the BOG natural gas behind is mixed to ensure uniform heating, which can avoid the unstable heating of BOG natural gas, so as to improve the stability of heating;Through cylinder control pull rod linkage plate moves, linkage plate is driven by slide bar baffle and turns over along the pivot as the axis, which can adjust the angle of baffle, so as to meet the purpose of different needs.

Description

Technical Field

[0001] This utility model relates to the field of cabin heating system technology, specifically an electric heating device for FSRU cabin heating system. Background Technology

[0002] FSRU, or Floating Liquefied Natural Gas Storage and Regasification Unit, is a special equipment that integrates multiple functions such as LNG receiving, storage, transshipment, regasification, and export. It is known as a large-scale mobile LNG shore station at sea. The warm tank system is one of its core subsystems. It is mainly used to gradually raise the temperature of the storage tank to a safe range before LNG (liquefied natural gas) is unloaded or when the cold tank is started, so as to avoid damage to the metal structure and insulation materials caused by low temperature. The BOG natural gas in the warm tank system is generally heated by electric heating devices.

[0003] Currently, the pressure tanks of electric heating devices have low explosion-proof ratings. Excessive pressure during use can easily pose safety hazards. Furthermore, the rapid gas movement during the heating of BOG natural gas can lead to uneven heating, affecting the stable control of the discharged BOG natural gas temperature. Utility Model Content

[0004] To address the safety hazards caused by excessive pressure during use and the problem of unstable temperature control of the storage environment due to unstable BOG natural gas supply, the purpose of this utility model is to provide an electric heating device for FSRU warming systems.

[0005] To solve the above technical problems, this utility model adopts the following technical solution: an electric heating device for an FSRU warm chamber system, comprising a control cabinet and a pressure vessel, wherein the pressure vessel has an IP66 protection rating and an explosion-proof rating of ExdbIICT4 Gb; one end of the pressure vessel is provided with an array of support pipes, one end of which is fixedly mounted on the control cabinet; an air inlet is fixedly provided at the end of the pressure vessel near the control cabinet, and an air outlet is fixedly provided at the end of the pressure vessel away from the control cabinet; an electric heating element is provided inside the pressure vessel; several symmetrically distributed baffles are provided inside the pressure vessel; an adjustment assembly is provided between the baffles and the pressure vessel; a temperature measuring tube is fixedly provided inside the pressure vessel; a safety valve port is fixedly provided on the outside of the pressure vessel; a drain port is fixedly provided on the outside of the pressure vessel; symmetrically distributed support seats are fixedly provided on the outside of the pressure vessel; a protective shell is provided on the outside of the pressure vessel to protect it; and an insulation layer is provided between the pressure vessel and the protective shell, wherein the insulation layer is an inorganic non-metallic ceramic fiber aluminosilicate fiber structure.

[0006] Preferably, the adjusting assembly includes a fixing plate, which is symmetrically distributed and fixedly installed on the inner wall of the pressure vessel. A rotating shaft is rotatably installed on the opposite side of the fixing plate. One side of the baffle plate is fixedly sleeved on the outside of the rotating shaft. A linkage plate is provided on the lower surface of the baffle plate. A sliding groove is provided on the upper surface of the linkage plate. A sliding rod is slidably provided inside the sliding groove. The top end of the sliding rod is rotatably installed on the lower surface of the baffle plate. A pull rod is fixedly inserted through the linkage plate. One end of the pull rod movably penetrates the pressure vessel. A cylinder is fixedly installed on the outside of the protective shell. The telescopic end of the cylinder is fixedly connected to one end of the pull rod.

[0007] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0008] 1. Pressure vessels have good protection and explosion-proof effects. The insulation layer can effectively keep the pressure vessel warm and ensure that the equipment can operate well in low-temperature environments.

[0009] 2. The BOG natural gas is heated by an electric heating element and the incoming BOG natural gas is deflected by a baffle plate to mix with the subsequent BOG natural gas to ensure uniform heating and improve heating efficiency. This ensures that the output BOG natural gas temperature meets the requirements and avoids unstable heating of BOG natural gas, thereby improving heating stability.

[0010] 3. The linkage plate is moved by the cylinder control rod, and the linkage plate drives the baffle plate to rotate around the axis of rotation through the slide rod. This can adjust the angle of the baffle plate to meet different needs. Attached Figure Description

[0011] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0012] Figure 1 This is a schematic diagram of the structure of this utility model.

[0013] Figure 2 This is the left view of the structure of this utility model.

[0014] Figure 3 This is a right view of the structure of this utility model.

[0015] Figure 4 This is a schematic cross-sectional view of the adjusting component structure of this utility model.

[0016] In the diagram: 1. Control cabinet; 2. Pressure vessel; 3. Support pipe; 4. Air inlet; 5. Air outlet; 6. Electric heating element; 7. Adjustment assembly; 71. Fixing plate; 72. Rotating shaft; 73. Linkage plate; 74. Slide groove; 75. Slide rod; 76. Pull rod; 77. Cylinder; 8. Temperature measuring tube; 9. Safety valve port; 10. Protective shell; 11. Lifting lug one; 12. Lifting lug two; 13. Safety valve; 14. Outlet temperature measuring device; 15. Insulation layer; 16. Drain outlet; 17. Support base; 18. Baffle plate. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Example: Figure 1-4As shown, this utility model provides an electric heating device for an FSRU warm chamber system, including a control cabinet 1 and a pressure vessel 2. The pressure vessel 2 has an IP66 protection rating and an explosion-proof rating of Exdb IICT4. Gb, one end of pressure vessel 2 is provided with an array of support pipes 3, one end of which is fixedly mounted on control cabinet 1. An air inlet 4 is fixedly provided at the end of pressure vessel 2 closest to control cabinet 1, and an air outlet 5 is fixedly provided at the end of pressure vessel 2 furthest from control cabinet 1. An electric heating element 6 is installed inside pressure vessel 2. Several symmetrically distributed baffles 18 are installed inside pressure vessel 2. An adjusting assembly 7 is installed between the baffles 18 and pressure vessel 2. A temperature measuring tube 8 is fixedly installed inside pressure vessel 2. A safety valve port 9 is fixedly installed on the outside of pressure vessel 2. A drain port 16 is fixedly installed on the outside of pressure vessel 2. Symmetrically distributed support seats 17 are fixedly installed on the outside of pressure vessel 2. A protective shell 10 is installed on the outside of pressure vessel 2 to protect it. The electric heating element 6 heats the BOG natural gas, and the baffles 18 regulate the flow of the incoming BOG natural gas. The pressure vessel is reversible and mixes with the BOG natural gas behind it to ensure uniform heating and improve heating efficiency. This allows for a convenient supply of BOG natural gas at a stable temperature. An insulation layer 15 is provided between the pressure vessel 2 and the protective shell 10. The insulation layer 15 is an inorganic non-metallic ceramic fiber aluminosilicate fiber structure, which can insulate the pressure vessel 2. An outlet thermometer 14 is installed on the outside of the outlet 5 to detect the temperature of the BOG natural gas at the outlet 5. A safety valve 13 is installed on the safety valve port 9 to release gas and maintain the pressure of the pressure vessel 2. The pressure vessel 2 and the support pipe 3 are connected by a flange to maintain a stable connection. Symmetrically distributed lifting lugs 11 are provided on the outside of the support pipe 3, and symmetrically distributed lifting lugs 22 are fixed on the outside of the pressure vessel 2. The lifting lugs 11 and 22 can be used to facilitate the hoisting and movement of the equipment.

[0019] The adjusting assembly 7 includes a fixed plate 71, which is symmetrically distributed and fixedly installed on the inner wall of the pressure vessel 2. A rotating shaft 72 is rotatably installed on the opposite side of the fixed plate 71. One side of the baffle plate 18 is fixedly sleeved on the outside of the rotating shaft 72. A linkage plate 73 is provided on the lower surface of the baffle plate 18. A symmetrically distributed sliding groove 74 is opened on the upper surface of the linkage plate 73. A sliding rod 75 is slidably installed inside the sliding groove 74. The top end of the sliding rod 75 is rotatably installed on the lower surface of the baffle plate 18. A pull rod 76 is fixedly inserted through the linkage plate 73. The linkage plate 73 is moved by the pull rod 76. The linkage plate 73 drives the baffle plate 18 to rotate around the rotating shaft 72 through the sliding rod 75. This allows for easy adjustment of the angle of the baffle plate 18. One end of the pull rod 76 movably passes through the pressure vessel 2. A cylinder 77 is fixedly installed on the outside of the protective shell 10. The telescopic end of the cylinder 77 is fixedly connected to one end of the pull rod 76. The movement of the pull rod 76 can be easily controlled by the cylinder 77.

[0020] Working principle: First, the electric heating element 6 is energized by the control cabinet 1, and the electric heating element 6 starts to work. The electric heating element 6 heats up and adds gas into the pressure vessel 2. Then, the compressor sends BOG natural gas into the pressure vessel 2 through the inlet 4, so that the electric heating element 6 heats the BOG natural gas. The inlet BOG natural gas is turned back by the baffle 18 and mixed with the BOG natural gas behind it to ensure uniform heating and improve heating efficiency. The heated BOG natural gas is discharged from the outlet 5, and the temperature of the outlet BOG natural gas is detected by the outlet temperature sensor 14 to ensure that the temperature of the output BOG natural gas meets the requirements. This can facilitate the supply of BOG natural gas with a stable temperature.

[0021] When the pressure in pressure vessel 2 is too high, safety valve 13 opens and discharges BOG natural gas from pressure vessel 2 through pipeline, thereby reducing the pressure in pressure vessel 2 and ensuring equipment safety.

[0022] When it is necessary to adjust the angle of the baffle plate 18, the cylinder 77 is activated, causing the cylinder 77 to start working. The drive end of the cylinder 77 drives the pull rod 76 to move, the pull rod 76 drives the linkage plate 73 to move, and the linkage plate 73 drives the baffle plate 18 to rotate around the axis 72 via the slide rod 75. At the same time, the slide rod 75 moves in the slide groove 74, thus adjusting the angle of the baffle plate 18.

[0023] All standard parts used in this invention can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here.

[0024] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. An electric heating device for an FSRU warm chamber system, comprising a control cabinet (1) and a pressure vessel (2), characterized in that: The pressure vessel (2) has an IP66 protection rating and an explosion-proof rating of Exdb IICT4. Gb, one end of the pressure vessel (2) is provided with an array of support pipes (3), one end of the support pipes (3) is fixedly installed on the control cabinet (1), the end of the pressure vessel (2) near the control cabinet (1) is fixedly provided with an air inlet (4), the end of the pressure vessel (2) away from the control cabinet (1) is fixedly provided with an air outlet (5), the inside of the pressure vessel (2) is provided with an electric heating element (6), the inside of the pressure vessel (2) is provided with several symmetrically distributed baffles (18), an adjustment component (7) is provided between the baffles (18) and the pressure vessel (2), the inside of the pressure vessel (2) is fixedly provided with a temperature measuring tube (8), the outside of the pressure vessel (2) is fixedly provided with a safety valve port (9), the outside of the pressure vessel (2) is fixedly provided with a drain port (16), the outside of the pressure vessel (2) is fixedly provided with symmetrically distributed support seats (17), and the outside of the pressure vessel (2) is provided with a protective shell (10).

2. The electric heating device for an FSRU warm-up system as described in claim 1, characterized in that, The regulating component (7) includes a fixed plate (71), which is symmetrically distributed and fixedly installed on the inner wall of the pressure vessel (2). A rotating shaft (72) is rotatably installed on one side of the fixed plate (71). One side of the baffle plate (18) is fixedly sleeved on the outside of the rotating shaft (72). A linkage plate (73) is provided on the lower surface of the baffle plate (18). A symmetrically distributed sliding groove (74) is provided on the upper surface of the linkage plate (73). A sliding rod (75) is slidably provided inside the sliding groove (74). The top end of the sliding rod (75) is rotatably installed on the lower surface of the baffle plate (18). A pull rod (76) is fixedly passed through the linkage plate (73).

3. An electric heating device for an FSRU warm-up system as described in claim 1, characterized in that, The support tube (3) is provided with symmetrically distributed lifting lugs (11) on the outside, and the pressure vessel (2) is fixedly provided with symmetrically distributed lifting lugs (12) on the outside.

4. An electric heating device for an FSRU warm-up system as described in claim 1, characterized in that, A heat insulation layer (15) is provided between the pressure vessel (2) and the protective shell (10), and the heat insulation layer (15) is an inorganic non-metallic ceramic fiber aluminosilicate fiber structure.

5. An electric heating device for an FSRU warm-up system as described in claim 1, characterized in that, An outlet temperature sensor (14) is installed on the outside of the air outlet (5).

6. An electric heating device for an FSRU warm-up system as described in claim 1, characterized in that, A safety valve (13) is installed on the safety valve port (9).

7. An electric heating device for an FSRU warm-up system as described in claim 2, characterized in that, One end of the pull rod (76) movably passes through the pressure vessel (2), and a cylinder (77) is fixedly provided on the outside of the protective shell (10). The telescopic end of the cylinder (77) is fixedly connected to one end of the pull rod (76).

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