A steam heating cylinder for NG warming

Abstract

The utility model provides a kind of steam heating cylinder for NG temperature rise, it is related to liquefied natural gas vaporization field, the steam heating cylinder for NG temperature rise, including cylinder, the outside of cylinder is fixedly connected with overflow pipe, the outside of cylinder is fixedly connected with drain water pipe, the top of cylinder is fixedly connected with vent pipe, the top of cylinder is fixedly connected with steam inlet pipe, the bottom of steam inlet pipe is fixedly connected with steam output pipe, the bottom of steam output pipe is penetrated cylinder and extends to the inner chamber of cylinder, and the outside of steam output pipe is equipped with exhaust hole, and the exhaust hole is evenly distributed, the inner chamber of cylinder is provided with spiral duct, the both ends of spiral duct are fixedly connected with communicating pipe, this steam heating cylinder for NG temperature rise effectively prevents the risk of natural gas leakage from connecting gap, both avoids the flammable and explosive safety hazard caused by NG leakage, and reduces resource waste.

Description

Technical Field

[0001] This utility model relates to a steam heating cylinder for NG heating, specifically a steam heating cylinder for NG heating, belonging to the field of liquefied natural gas vaporization technology. Background Technology

[0002] The heating cylinder for liquefied natural gas (LNG) is a core heat exchange device that converts cryogenic liquefied natural gas into a gaseous state for use. It is mainly used in LNG storage tanks, gasification stations, and other similar scenarios. In terms of design and use, the heating cylinder has two key features: first, it has extremely strong low-temperature resistance, which can withstand the ultra-low temperature corrosion and thermal shock of LNG; second, it has strict safety control devices, such as temperature sensors and pressure regulating valves, which can monitor the medium status in real time and avoid safety accidents caused by over-temperature and over-pressure.

[0003] The prior art patent application number is 201920479444.6, entitled "A Natural Gas Heating Device," which includes a mounting frame with a housing on it. The housing has a natural gas inlet and a natural gas outlet, and a natural gas heating mechanism is located inside the housing, connected to the natural gas inlet and outlet. The natural gas heating mechanism also has a heat medium inlet and an outlet. The heating mechanism includes a first partition and a second partition, forming a heat exchange zone between the first partition, the second partition, and the housing.

[0004] However, its sealing mechanism is limited by its simple design structure, and its sealing performance is easily affected by both the rise in ambient temperature and the heat dissipation of the equipment itself. This makes it unable to effectively prevent natural gas from leaking in the gaps at the connection between the pipeline and the device. This not only wastes natural gas resources and increases energy costs, but also causes the leaked natural gas to mix with air and form flammable and explosive gases. Therefore, a new technical solution needs to be designed to solve this problem. Summary of the Invention

[0005] The purpose of this invention is to provide a steam heating cylinder for NG heating to solve the aforementioned problems. This addresses the issue that existing sealing mechanisms are limited by simple design structures, making their sealing performance susceptible to degradation due to both increased ambient temperature and heat dissipation from the equipment itself. This prevents them from effectively preventing natural gas leakage at the connection points between pipelines and the device.

[0006] This utility model is achieved through the following technical solution: a steam heating cylinder for heating NG.

[0007] The device includes a cylindrical body, an overflow pipe fixedly connected to the outer side of the cylindrical body, a water inlet pipe fixedly connected to the outer side of the cylindrical body, a vent pipe fixedly connected to the top of the cylindrical body, a steam inlet pipe fixedly connected to the top of the cylindrical body, and a steam outlet pipe fixedly connected to the bottom end of the steam inlet pipe. The multi-pipeline layout meets the diverse functional requirements of the device, such as water inlet, drainage, venting, and steam transportation, and provides basic structural support for the normal operation of the heating system.

[0008] Preferably, the bottom end of the steam output pipe penetrates the cylinder and extends into the inner cavity of the cylinder, and an exhaust hole is provided on the outer side of the steam output pipe. The exhaust holes are evenly distributed, and the steam can be fully diffused into the inner cavity of the cylinder through the evenly distributed exhaust holes, thereby increasing the contact area between the steam and the medium to be heated and improving the heat exchange efficiency.

[0009] Preferably, the inner cavity of the cylinder is provided with a spiral pipe, and both ends of the spiral pipe are fixedly connected to a connecting pipe. The connecting pipe is fixedly connected to the cylinder. The spiral pipe design extends the flow path of the medium in the cylinder, increases the heat exchange time, and improves the heating uniformity and overall thermal efficiency.

[0010] Preferably, the outer side of the spiral pipe is provided with six corrugated heat-conducting plates, which are evenly distributed. The inner cavity of the corrugated heat-conducting plates is provided with a graphite-based filling layer. The corrugated structure increases the heat conduction area, and together with the graphite-based filling layer, heat can be transferred quickly, enhancing the heat exchange effect between the spiral pipe and the surrounding steam.

[0011] Preferably, one end of the connecting pipe is fixedly connected to a connecting pipe, and one end of the connecting pipe has two sealing grooves. The sealing grooves provide installation space for the subsequent docking sealing structure, which helps to improve the sealing performance of the pipe connection and reduce the risk of media leakage.

[0012] Preferably, the inner cavity of the connecting pipe is integrally formed with a beveled tube, and two mating grooves are provided at one end of the beveled tube. The beveled design facilitates the positioning and installation when the pipe is mated, and the mating grooves can further enhance the stability of the connection structure and prevent the mating parts from loosening.

[0013] Preferably, one end of the connecting pipe is connected to a connecting pipe via a flange. One end of the connecting pipe has two integrally formed sealing rings. The sealing rings extend to the inner side of the sealing groove. The fitting structure of the sealing rings and the sealing groove forms a multiple seal. Combined with the flange connection, it can effectively prevent the medium from leaking from the connection and improve the sealing reliability.

[0014] Preferably, one end of the connecting pipe has a beveled groove that fits into the beveled pipe. Two connecting rings are integrally formed on one side of the beveled groove, and the connecting rings extend to the inside of the connecting groove. The beveled fitting design increases the contact area of ​​the connection surface. The cooperation between the connecting rings and the connecting groove further strengthens the structural strength and sealing of the pipe connection, ensuring stable medium transportation.

[0015] This invention provides a steam heating cylinder for heating NG (Gas-Oxide) equipment, which has the following beneficial effects: 1. This steam heating cylinder for NG heating effectively eliminates the risk of natural gas leakage from the connection gaps through the sealing mechanism at the connection. This not only avoids the flammable and explosive safety hazards caused by NG leakage, but also reduces resource waste. At the same time, the tight sealing fit can maintain stable internal pressure of the heating cylinder, ensuring that the natural gas flows continuously and evenly during the heating process, and ensuring that the heating efficiency is not affected by pressure fluctuations.

[0016] 2. This steam heating cylinder for NG heating significantly improves heat exchange efficiency through a highly efficient heat conduction mechanism: After the steam diffuses evenly through the exhaust port, it can fully contact the spiral pipe that extends the medium path and the corrugated heat-conducting plate that increases the heat conduction area. Combined with the graphite-based filling layer, it conducts heat quickly, reducing heat loss and lowering steam consumption and energy costs. At the same time, the spiral pipe extends the residence time of NG in the cylinder, and the corrugated heat-conducting plate and graphite-based filling layer ensure uniform heat transfer, avoiding local overheating or uneven heating of NG and ensuring stable medium quality. It can also shorten the NG heating time, increase the throughput of the heating cylinder per unit time, and indirectly improve the efficiency of the overall production or transportation process. Attached Figure Description

[0017] Figure 1 This is a front-view three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the front sectional view of the present invention; Figure 3 This is a cross-sectional view of the sealing mechanism at the connection point of this utility model. Figure 4 This is a schematic diagram of the corrugated heat-conducting plate structure of this utility model; [Explanation of Key Component Symbols] 1. Cylinder body; 101. Overflow pipe; 102. Inlet / outlet pipe; 2. Vent pipe; 3. Steam inlet pipe; 301. Steam outlet pipe; 302. Exhaust port; 4. Spiral pipe; 401. Connecting pipe; 5. Corrugated heat-conducting plate; 501. Graphite-based filler layer; 6. Connecting pipe; 601. Sealing groove; 602. Beveled pipe; 603. Butt joint groove; 7. Connecting pipe; 701. Sealing ring; 702. Angled groove; 703. Connecting ring. Detailed Implementation

[0018] This utility model provides a steam heating cylinder for heating NG.

[0019] Example 1, please refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 It includes a cylinder 1, an overflow pipe 101 fixedly connected to the outside of the cylinder 1, a water inlet pipe 102 fixedly connected to the outside of the cylinder 1, a vent pipe 2 fixedly connected to the top of the cylinder 1, a steam inlet pipe 3 fixedly connected to the top of the cylinder 1, and a steam outlet pipe 301 fixedly connected to the bottom end of the steam inlet pipe 3.

[0020] Please refer to it again. Figure 1 , Figure 2 and Figure 4 The bottom end of the steam output pipe 301 penetrates the cylinder 1 and extends into the inner cavity of the cylinder 1. An exhaust hole 302 is provided on the outer side of the steam output pipe 301, and the exhaust holes 302 are evenly distributed. A spiral pipe 4 is provided in the inner cavity of the cylinder 1. Both ends of the spiral pipe 4 are fixedly connected to a connecting pipe 401, which is fixedly connected to the cylinder 1. Six corrugated heat-conducting plates 5 are provided on the outer side of the spiral pipe 4, and the corrugated heat-conducting plates 5 are evenly distributed. A graphite-based filling layer 501 is provided in the inner cavity of the corrugated heat-conducting plate 5.

[0021] During operation, steam first enters the steam output pipe 301 through the steam inlet pipe 3. The steam output pipe 301 extends into the inner cavity of the cylinder 1. The exhaust holes 302 evenly distributed on its outer side can evenly diffuse the steam to all parts of the inner cavity of the cylinder 1, ensuring that the steam is in full contact with the heat conduction components. The spiral pipe 4 in the inner cavity of the cylinder 1 supplies natural gas. The six corrugated heat conduction plates 5 evenly arranged on its outer side can quickly absorb the heat of the steam by increasing the surface area. At the same time, the graphite-based filling layer 501 in the inner cavity of the corrugated heat conduction plate 5 can accelerate the heat transfer efficiency and quickly conduct the absorbed steam heat to the outer wall of the spiral pipe 4. The spiral structure of the spiral pipe 4 itself extends the flow path of natural gas in the cylinder, allowing the natural gas to fully contact the inner wall of the pipe and continuously absorb the heat transferred by the pipe, ultimately achieving efficient and uniform heating of the natural gas.

[0022] Example 2, please refer to again. Figure 1 , Figure 2 and Figure 3One end of the connecting pipe 401 is fixedly connected to the connecting pipe 6. Two sealing grooves 601 are opened at one end of the connecting pipe 6. An inclined pipe 602 is integrally formed in the inner cavity of the connecting pipe 6. Two mating grooves 603 are opened at one end of the inclined pipe 602. One end of the connecting pipe 6 is connected to the mating pipe 7 through a flange. Two sealing rings 701 are integrally formed at one end of the mating pipe 7. The sealing rings 701 extend to the inner side of the sealing groove 601. An inclined groove 702 is opened at one end of the mating pipe 7. The inclined groove 702 fits with the inclined pipe 602. Two mating rings 703 are integrally formed on one side of the inclined groove 702. The mating rings 703 extend to the inner side of the mating groove 603.

[0023] When the connecting pipe 7 is fixed to the connecting pipe 6 via a flange, the integrally formed sealing ring 701 at its end will precisely embed into the sealing groove 601 opened in the connecting pipe 6, forming the first physical sealing barrier, directly blocking the leakage of the medium from the radial gaps in the pipeline; at the same time, the inclined groove 702 of the connecting pipe 7 fits tightly with the inclined tube 602 of the connecting pipe 6. The inclined structure can not only guide the docking positioning, but also further enhance the sealing effect through surface contact, forming the second sealing protection; in addition, the docking ring 703 on one side of the inclined groove 702 will be embedded into the docking groove 603 of the inclined tube 602, which will strengthen the stability of the pipeline connection structure and form the third sealing guarantee. The triple sealing structure works together to ultimately achieve a highly efficient seal at the connection, ensuring no leakage during the medium transportation process.

[0024] Working Principle: During operation, the natural gas to be heated enters the connecting pipe 6 through the connecting pipe 7, and flows into the spiral pipe 4 inside the cylinder 1 through the connecting pipe 401. Simultaneously, high-temperature steam enters the steam output pipe 301 through the steam inlet pipe 3. The steam output pipe 301 delivers the steam to the inner cavity of the cylinder 1, and through the evenly distributed exhaust holes 302 on its outer side, the steam is evenly diffused into the internal space of the cylinder 1. The diffused steam comes into full contact with the corrugated heat-conducting plate 5 on the outer side of the spiral pipe 4. The corrugated heat-conducting plate 5 rapidly absorbs the heat of the steam by increasing the contact area. The graphite-based filling layer 501 in its inner cavity further accelerates heat transfer, efficiently conducting heat to the outer wall of the spiral pipe 4. The spiral structure of the spiral pipe 4 extends the flow path of the natural gas inside the cylinder 1, allowing the natural gas inside the pipe to fully contact the inner wall of the pipe and continuously absorb heat. The heating is achieved by absorbing heat. During the medium transportation process, the connecting pipe 6 and the docking pipe 7 are connected by a triple sealing structure, which includes a sealing ring 701 embedded in the sealing groove 601, a sloped groove 702 fitting with the sloped pipe 602, and a docking ring 703 embedded in the docking groove 603. This ensures that there is no leakage of natural gas during transportation and heating. Excess water generated during the heating process is discharged through the overflow pipe 101. The gas in the cylinder 1 can be discharged through the vent pipe 2. The water inlet pipe 102 is used for the water inlet and water outlet operations of the cylinder 1, which together ensures the stable operation of the device. Finally, the heated natural gas is output through the connecting pipe 401, connecting pipe 6 and docking pipe 7 at the other end, completing the entire heating process.

[0025] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A steam heating cylinder for NG heating, comprising a cylinder body (1), characterized in that: An overflow pipe (101) is fixedly connected to the outside of the cylinder (1), and a water inlet pipe (102) is fixedly connected to the outside of the cylinder (1). The top of the cylinder (1) is fixedly connected to a vent pipe (2), the top of the cylinder (1) is fixedly connected to a steam inlet pipe (3), and the bottom end of the steam inlet pipe (3) is fixedly connected to a steam outlet pipe (301).

2. A steam heating cylinder for heating NG according to claim 1, characterized in that: The bottom end of the steam output pipe (301) passes through the cylinder (1) and extends into the inner cavity of the cylinder (1), and an exhaust hole (302) is provided on the outer side of the steam output pipe (301), and the exhaust holes (302) are evenly distributed.

3. A steam heating cylinder for NG heating according to claim 2, characterized in that: The inner cavity of the cylinder (1) is provided with a spiral pipe (4), and both ends of the spiral pipe (4) are fixedly connected to a connecting pipe (401), which is fixedly connected to the cylinder (1).

4. A steam heating cylinder for NG heating according to claim 3, characterized in that: The spiral pipe (4) is provided with six corrugated heat-conducting plates (5) on its outer side, and the corrugated heat-conducting plates (5) are evenly distributed. The inner cavity of the corrugated heat-conducting plates (5) is provided with a graphite-based filling layer (501).

5. A steam heating cylinder for NG heating according to claim 4, characterized in that: One end of the connecting pipe (401) is fixedly connected to a connecting pipe (6), and two sealing grooves (601) are opened at one end of the connecting pipe (6).

6. A steam heating cylinder for NG heating according to claim 5, characterized in that: The inner cavity of the connecting pipe (6) is integrally formed with a beveled pipe (602), and two mating grooves (603) are opened at one end of the beveled pipe (602).

7. A steam heating cylinder for NG heating according to claim 6, characterized in that: One end of the connecting pipe (6) is connected to the connecting pipe (7) via a flange. One end of the connecting pipe (7) has two integrally formed sealing rings (701), which extend to the inside of the sealing groove (601).

8. A steam heating cylinder for NG heating according to claim 7, characterized in that: One end of the connecting pipe (7) is provided with a sloping groove (702), the sloping groove (702) is in contact with the sloping pipe (602), and two docking rings (703) are integrally formed on one side of the sloping groove (702), the docking rings (703) extend to the inside of the docking groove (603).

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