A vaporization device for a liquefied gas storage tank

Abstract

This invention provides a vaporization device for a liquefied gas storage tank, comprising a base plate, an liquefied gas tank mounted on the upper side of the base plate, a control valve mounted on the lower side of the liquefied gas tank, a liquid delivery pipe fixedly connected to the end of the control valve, a housing connected to the liquid delivery pipe mounted on the upper side of the base plate, a heat exchange coil disposed inside the housing, a gas output pipe fixedly connected to one end of the heat exchange coil, a waste heat recovery mechanism disposed on one side of the housing, and a threaded mounting groove provided on the upper side of the housing. This invention, by setting up a waste heat recovery mechanism, with an evaporation tube wound around the outside of the gas output pipe, in conjunction with a condenser tube and connecting pipe inside the liquid delivery pipe, achieves the recovery and utilization of the waste heat of the high-temperature gas after vaporization. The recovered heat is used to preheat the liquefied gas entering the vaporization device, reducing the energy consumption of the heating tube assembly, effectively reducing heat loss, and improving energy utilization efficiency.

Description

Technical Field

[0001] This utility model relates to the technical field of liquefied gas processing equipment, and more specifically, to a vaporization device for a liquefied gas storage tank. Background Technology

[0002] In industrial production and daily life, liquefied gases such as liquefied natural gas and liquefied petroleum gas are being used more and more widely. When using these liquefied gases, they need to be converted from liquid to gaseous state, that is, they need to be vaporized.

[0003] Most existing liquefied gas storage tank vaporization devices focus only on the vaporization process of liquefied gas, but generally neglect the recovery and reuse of heat generated during the vaporization process. After the liquefied gas is vaporized, the heat is often directly lost to the environment through gas output or equipment heat dissipation, without being effectively utilized, resulting in heat loss, leading to a huge waste of energy, high operating costs, and increased dependence on external energy.

[0004] Therefore, we have made improvements to this by proposing a vaporization device for a liquefied gas storage tank. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a steam curing device for manufactured sand concrete to solve the problems mentioned in the background technology. This utility model realizes the recovery and utilization of the waste heat of the high-temperature gas after vaporization by setting up a waste heat recovery mechanism. The recovered heat is used to preheat the liquefied gas entering the vaporization device, which reduces the energy consumption of the heating tube assembly, effectively reduces heat loss, and improves energy utilization efficiency.

[0006] To achieve the above-mentioned objectives, this utility model provides the following technical solution:

[0007] A vaporization device for a liquefied gas storage tank includes a base plate, an liquefied gas tank mounted on the upper side of the base plate, a control valve mounted on the lower side of the liquefied gas tank, a liquid delivery pipe fixedly connected to the end of the control valve, a housing connected to the liquid delivery pipe mounted on the upper side of the base plate, a heat exchange coil disposed inside the housing, a gas output pipe fixedly connected to one end of the heat exchange coil, a waste heat recovery mechanism disposed on one side of the housing, and a threaded mounting groove provided on the upper side of the housing, with a heating tube assembly threadedly fitted into the inner wall of the threaded mounting groove.

[0008] Furthermore, one end of the infusion pipe is connected to one end of the heat exchange coil, one end of the gas output pipe extends to the outside of the shell, and the heating tube assembly cooperates with the heat exchange coil.

[0009] Furthermore, two mounting brackets are fixedly connected to the lower side of the inner wall of the housing, and the heat exchange coil is installed between the two mounting brackets.

[0010] Furthermore, the waste heat recovery mechanism includes an evaporator tube wound around the outside of the gas output pipe, a condenser tube installed inside the liquid delivery pipe, a connecting pipe between the evaporator tube and the condenser tube, heat-conducting fins fixedly connected to the evaporator tube, spiral blades fixedly connected to the outside of the condenser tube, and a heat-insulating protective sleeve fitted on the outside of the connecting pipe.

[0011] Furthermore, the two ends of the connecting pipe are respectively connected to the condenser pipe and the evaporator pipe, and the spiral blades are fitted with the inner wall of the liquid delivery pipe.

[0012] Furthermore, a heat insulation shell is fixedly connected to one side of the housing, the gas output pipe and the evaporation pipe are disposed inside the heat insulation shell, and one end of the connecting pipe extends into the interior of the heat insulation shell.

[0013] Furthermore, the upper side of the base plate is provided with a plurality of positioning holes, which are respectively located at the four corners of the base plate.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] 1. This utility model, by setting up a waste heat recovery mechanism, wraps the evaporation tube around the outside of the gas output tube, and works with the condenser tube and connecting tube in the liquid delivery pipeline to realize the recovery and utilization of the waste heat of the high-temperature gas after vaporization. The recovered heat is used to preheat the liquefied gas entering the vaporization device, which reduces the energy consumption of the heating tube assembly, effectively reduces heat loss, and improves energy utilization efficiency.

[0016] 2. By setting heat-conducting fins and spiral blades, the heat-conducting fins increase the contact area between the evaporator tube and the gas output tube, enabling the evaporator tube to absorb heat from the high-temperature gas more efficiently. The spiral blades cause disturbance to the liquefied gas in the liquid delivery pipeline, enhancing its heat exchange effect with the condenser tube. The combination of the two further improves the efficiency of waste heat recovery and ensures full utilization of heat. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0018] Figure 2 This is a structural schematic diagram of the cross-section of the shell of this utility model;

[0019] Figure 3 This is a schematic diagram of the installation structure of the heating tube assembly of this utility model;

[0020] Figure 4 This is a structural schematic diagram of the cross-section of the infusion pipeline and the heat insulation shell of this utility model;

[0021] Figure 5 This utility model Figure 4 Enlarged structural diagram at point A in the middle.

[0022] The image shows:

[0023] 1. Base plate; 2. Liquefied gas tank; 3. Control valve; 4. Liquid delivery pipeline; 5. Shell; 6. Heat exchange coil; 7. Gas output pipe; 8. Waste heat recovery mechanism; 81. Evaporator tube; 82. Condenser tube; 83. Connecting pipe; 84. Heat-conducting fins; 85. Spiral blades; 86. Thermal insulation sleeve; 9. Threaded mounting groove; 10. Heating tube assembly; 11. Mounting bracket; 12. Thermal insulation shell; 13. Positioning hole. Detailed Implementation

[0024] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0025] Please refer to Figure 1-5 A vaporization device for a liquefied gas storage tank includes a base plate 1, a liquefied gas tank 2 mounted on the upper side of the base plate 1, a control valve 3 mounted on the lower side of the liquefied gas tank 2, a liquid delivery pipe 4 fixedly connected to the end of the control valve 3, a housing 5 connected to the liquid delivery pipe 4 mounted on the upper side of the base plate 1, a heat exchange coil 6 disposed inside the housing 5, a gas output pipe 7 fixedly connected to one end of the heat exchange coil 6, a waste heat recovery mechanism 8 disposed on one side of the housing 5, and a threaded mounting groove 9 opened on the upper side of the housing 5, with a heating tube assembly 10 threadedly fitted into the inner wall of the threaded mounting groove 9.

[0026] Specifically, the vaporization device of the liquefied gas storage tank uses the base plate 1 as a supporting foundation. The liquefied gas tank 2 is placed on the upper side of the base plate 1 to store liquefied gas. The flow of liquefied gas is controlled by the control valve 3. The liquefied gas is transported to the heat exchange coil 6 in the shell 5 through the liquid delivery pipeline 4. Under the action of the heating tube assembly 10, the liquefied gas is heated and vaporized in the heat exchange coil 6. Finally, the vaporized gas is output through the gas output pipe 7.

[0027] In this embodiment, one end of the infusion pipe 4 is connected to one end of the heat exchange coil 6, and one end of the gas output pipe 7 extends to the outside of the housing 5. The heating tube assembly 10 cooperates with the heat exchange coil 6. Two mounting brackets 11 are fixedly connected to the lower side of the inner wall of the housing 5, and the heat exchange coil 6 is installed between the two mounting brackets 11. Multiple positioning holes 13 are provided on the upper side of the base plate 1, and the multiple positioning holes 13 are respectively located at the four corners of the base plate 1. The positioning holes 13 facilitate quick and accurate installation of the device, and the mounting brackets 11 enhance the structural stability of the heat exchange coil 6, preventing it from deforming or shifting in a high-temperature environment, and ensuring the smooth progress of the vaporization process.

[0028] Specifically, when installing the vaporization device, the base plate 1 can be fixed to the ground, equipment platform or other installation position by passing bolts or other connecting parts through the positioning hole 13, thereby achieving a stable installation of the entire device. The heating tube assembly 10 is installed on the upper side of the shell 5 through the threaded mounting groove 9 and cooperates with the heat exchange coil 6. After the heating tube assembly 10 is powered on, it generates heat to heat the liquefied gas in the heat exchange coil 6, so that it absorbs heat and gradually vaporizes.

[0029] In this embodiment, the waste heat recovery mechanism 8 includes an evaporator tube 81 wound around the outside of the gas output pipe 7, a condenser tube 82 installed inside the liquid delivery pipe 4, a connecting pipe 83 between the evaporator tube 81 and the condenser tube 82, heat-conducting fins 84 fixedly connected to the evaporator tube 81, a spiral blade 85 fixedly connected to the outside of the condenser tube 82, and a heat-insulating protective sleeve 86 fitted over the outside of the connecting pipe 83. The two ends of the connecting pipe 83 are respectively connected to the condenser tube 82 and the evaporator tube 81, and the spiral blade 85 mates with the inner wall of the liquid delivery pipe 4. A heat-insulating shell 12 is fixedly connected to one side of the housing 5, the gas output pipe 7 and the evaporator tube 81 are disposed inside the heat-insulating shell 12, and one end of the connecting pipe 83 extends into the interior of the heat-insulating shell 12. The waste heat recovery mechanism 8 effectively recovers the waste heat of the high-temperature gas after vaporization, which is used to preheat the liquefied gas entering the vaporization device, reducing the energy consumption of the heating tube assembly 10, improving energy utilization efficiency, and meeting the requirements of energy conservation and emission reduction. The heat-conducting fins 84 and the spiral blades 85 are optimized from the aspects of heat absorption and heat exchange, respectively, further improving the effect of waste heat recovery. The heat insulation protective sleeve 86 and the heat insulation shell 12 reduce heat loss, which not only improves energy utilization but also avoids the impact of heat loss on the surrounding environment and operators.

[0030] Specifically, the evaporator tube 81 in the waste heat recovery mechanism 8 is wound around the outside of the gas output pipe 7. When the vaporized high-temperature gas passes through the gas output pipe 7, the medium inside the evaporator tube 81 absorbs the heat emitted by the gas output pipe 7, and the medium vaporizes. The vaporized medium is then transported through the connecting pipe 83 to the condenser tube 82 inside the liquid delivery pipeline 4. Inside the condenser tube 82, the medium liquefies upon cooling, and simultaneously transfers heat to the liquefied gas in the liquid delivery pipeline 4, preheating it. The heat-conducting fins 84 are fixed on the evaporator tube 81, increasing the heat exchange between the evaporator tube 81 and the gas. The contact area of ​​the gas output pipe 7 is increased to improve heat absorption efficiency. The spiral blades 85 on the outside of the condenser pipe 82 cooperate with the inner wall of the liquid delivery pipe 4. When the liquefied gas flows through the liquid delivery pipe 4, the spiral blades 85 can cause turbulence in the liquefied gas, enhancing its heat exchange effect with the condenser pipe 82. The heat insulation protective sleeve 86 on the outside of the connecting pipe 83 can reduce heat loss during transmission. The heat insulation shell 12 covers the gas output pipe 7 and the evaporator pipe 81, further reducing heat loss to the external environment, while also providing a certain degree of protection for the internal components.

[0031] The above embodiments are only used to illustrate the present utility model and are not intended to limit the technical solutions described in the present utility model. Although the present utility model has been described in detail with reference to the above embodiments, the present utility model is not limited to the specific embodiments described above. Therefore, any modifications or equivalent substitutions to the present utility model, and all technical solutions and improvements that do not depart from the spirit and scope of the invention, are covered within the scope of the claims of the present utility model.

Claims

1. Vaporization device for a liquefied gas tank comprising a bottom plate (1), characterized in that: The upper side of the bottom plate (1) is provided with a liquefied gas tank (2), the lower side of the liquefied gas tank (2) is provided with a control valve (3), the end of the control valve (3) is fixedly connected with a liquid conveying pipeline (4), the upper side of the bottom plate (1) is provided with a shell (5) connected with the liquid conveying pipeline (4), the inside of the shell (5) is provided with a heat exchange coil (6), one end of the heat exchange coil (6) is fixedly connected with a gas output pipe (7), one side of the shell (5) is provided with a waste heat recovery mechanism (8), the upper side of the shell (5) is provided with a threaded installation groove (9), and the inner wall of the threaded installation groove (9) is threadedly connected with a heating pipe assembly (10).

2. A vaporization device for a liquefied gas storage tank according to claim 1, characterized in that: One end of the liquid conveying pipeline (4) is communicated with one end of the heat exchange coil (6), one end of the gas output pipe (7) extends to the outside of the shell (5), and the heating pipe assembly (10) is matched with the heat exchange coil (6).

3. A vaporization device for a liquefied gas storage tank according to claim 1, characterized in that: The lower side of the inner wall of the shell (5) is fixedly connected with two mounting racks (11), and the heat exchange coil (6) is arranged between the two mounting racks (11).

4. A vaporization device for a liquefied gas storage tank according to claim 1, characterized in that: The waste heat recovery mechanism (8) comprises an evaporation pipe (81) wound outside the gas output pipe (7), a condensation pipe (82) arranged in the liquid conveying pipeline (4), a connecting pipe (83) arranged between the evaporation pipe (81) and the condensation pipe (82), heat-conducting fins (84) fixedly connected to the evaporation pipe (81), and spiral blades (85) fixedly connected to the outside of the condensation pipe (82).

5. A vaporization device for a liquefied gas storage tank according to claim 4, characterized in that: Both ends of the connecting pipe (83) are communicated with the condensation pipe (82) and the evaporation pipe (81) respectively, and the spiral blades (85) are matched with the inner wall of the liquid conveying pipeline (4).

6. A vaporization device for a liquefied gas storage tank according to claim 4, characterized in that: One side of the shell (5) is fixedly connected with a heat insulation shell (12), the gas output pipe (7) and the evaporation pipe (81) are arranged in the heat insulation shell (12), and one end of the connecting pipe (83) extends into the heat insulation shell (12).

7. A vaporizing device for a liquefied gas storage tank according to claim 1, characterized by: The upper side of the bottom plate (1) is provided with a plurality of positioning holes (13), and the plurality of positioning holes (13) are arranged at the four corners of the bottom plate (1) respectively.

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