Liquefied petroleum gas steel cylinder with built-in heat insulation layer

Abstract

The utility model discloses a liquefied petroleum gas steel cylinder with a built-in heat insulation layer, and relates to the technical field of liquefied petroleum gas storage equipment, the liquefied petroleum gas steel cylinder with the built-in heat insulation layer has ultra-low temperature thermal conductivity, heat resistance and heat preservation performance as a heat preservation layer is made of a polyurethane foam material; the heat insulation layer is made of a polyvinyl chloride material, so that the heat conduction performance is not obvious, the chemical stability is high, the heat transfer efficiency of the storage structure is greatly reduced, and the influence of external temperature change on the interior of the steel cylinder main body is reduced; meanwhile, heat dissipation is reduced through cooperation with a heat insulation plate, the heat conduction efficiency of the steel cylinder body is improved, and therefore the influence of low temperature on the liquefied petroleum gas steel cylinder is effectively avoided, a heating structure is monitored through a temperature sensor, the control module is controlled to stop heating when a certain temperature is reached, and the use safety of the liquefied petroleum gas steel cylinder is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of liquefied petroleum gas storage equipment, in particular to a liquefied petroleum gas cylinder with a built-in heat insulation layer. Background Art

[0002] Liquefied petroleum gas is a colorless volatile liquid obtained by pressurizing and cooling natural gas or petroleum to liquefy it in an oil refinery. It is extremely easy to spontaneously combust. When its content in the air reaches a certain concentration range, it can explode when encountering an open flame. The main components of the liquefied petroleum gas obtained from the refinery are one or two of propane, propylene, butane, and butene, and it is also mixed with a small amount of pentane, pentene and trace sulfide impurities. If the liquefied petroleum gas is to be further purified, an amine absorption tower can be used to absorb and remove the carbon oxysulfide, and finally the excess sulfide can be washed away with alkali. Liquefied petroleum gas is usually stored in special storage equipment.

[0003] For example, the publication number CN1305073A discloses a liquefied petroleum gas cylinder, which divides the inner cavity of the cylinder into an upper vaporization chamber and a lower liquid storage power chamber, and the two chambers are connected by a conduit extending to the bottom of the liquid storage power chamber, the upper end of the conduit has a spray hole in the vaporization chamber, the lower end has a liquid inlet, the lower half of the conduit has a one-way overflow valve, and the liquid storage power chamber is filled with inert gas at a certain pressure. It can ensure that the residual liquid is first vaporized and burned, and will not cause the pressure reducing valve to overflow, so that no residual liquid is left in the cylinder.

[0004] When using existing liquefied petroleum gas cylinders, due to the limitations of their storage structure, the heat transfer efficiency of the cylinder itself is relatively high, resulting in the internal being easily affected by external temperature changes. Especially in winter, the low temperature environment is not conducive to the normal use of liquefied petroleum gas cylinders. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a liquefied petroleum gas cylinder with a built-in insulation layer to solve the problem raised in the above background technology that when the existing liquefied petroleum gas cylinder is in use, due to the limitations of its storage structure, the heat transfer efficiency of the cylinder itself is relatively high, resulting in the interior being easily affected by changes in external temperature, especially in winter, when the low temperature environment is not conducive to the normal use of the liquefied petroleum gas cylinder.

[0006] To achieve the above objectives, the utility model is implemented through the following technical solutions: a liquefied petroleum gas cylinder with a built-in thermal insulation layer, comprising a cylinder body, a thermal insulation layer is fixedly connected to the surface of the cylinder body, a thermal insulation layer is fixedly connected to the surface of the thermal insulation layer, a protective layer is fixedly connected to the surface of the thermal insulation layer, a connecting base is fixedly installed at the lower end of the cylinder body, a heating plate is fixedly installed on the inner side of the connecting base at the lower end of the cylinder body, a thermal insulation plate is fixedly installed at the lower end of the heating plate, a heating module is fixedly installed on the front end of the connecting base surface, a control module is fixedly installed on the front end of the heating module, and a temperature sensor is fixedly installed on the upper end of the heating module.

[0007] Preferably, the thermal insulation layer is made of polyurethane foam, and the heat insulating layer is made of polyvinyl chloride.

[0008] Preferably, the protective layer is made of polyurethane rubber, and the heat insulation board is made of rock wool board.

[0009] Preferably, the connecting base is designed as an annular structure, and the surface of the connecting base is sprayed with corrosion-resistant paint.

[0010] Preferably, a wear-resistant pad is fixedly mounted on the lower end of the connecting base, and the wear-resistant pad is made of the same polyurethane rubber material.

[0011] Preferably, the heating plate is electrically connected to the heating module, and the heating module and the temperature sensor are both electrically connected to the control module.

[0012] Preferably, an angle valve is provided at the upper end of the cylinder body, a pressure reducing valve is fixedly connected to the angle valve, and a connecting port is provided on the pressure reducing valve.

[0013] Beneficial Effects

[0014] The utility model provides a liquefied petroleum gas cylinder with a built-in heat insulation layer. Compared with the prior art, it has the following beneficial effects:

[0015] 1. The liquefied petroleum gas cylinder with a built-in thermal insulation layer has ultra-low temperature thermal conductivity and heat-resistant and heat-insulating properties through the thermal insulation layer made of polyurethane foam material. The thermal insulation layer is made of polyvinyl chloride material, so its thermal conductivity is not obvious and the chemical stability is high. The protective layer is used to reinforce the thermal insulation structure, which is convenient for the thermal insulation layer and the thermal insulation layer to effectively exert the thermal insulation capacity of the cylinder body for a long time, greatly reduce the heat transfer efficiency of the storage structure, and help reduce the impact of external temperature changes on the inside of the cylinder body.

[0016] 2. When the liquefied petroleum gas cylinder with a built-in thermal insulation layer is in a low temperature environment for a long time in winter, the control module controls the heating module to heat the heating plate, and at the same time cooperates with the thermal insulation plate to reduce heat dissipation and improve the thermal conductivity of the cylinder body, thereby effectively solving the impact of low temperature on the liquefied petroleum gas cylinder. The temperature sensor is used to monitor the heating structure. When a certain temperature is reached, the control module is controlled to turn off the heating to prevent the temperature from being too high, which is beneficial to improving the safety of the use of the liquefied petroleum gas cylinder. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0018] Figure 2 The connecting base structure of the utility model is shown in FIG. Figure 1 ;

[0019] Figure 3 The connecting base structure of the utility model is shown in FIG. Figure 2 ;

[0020] Figure 4 It is a structural schematic diagram of the utility model.

[0021] In the figure: 1. Cylinder body; 2. Insulation layer; 3. Heat insulation layer; 4. Protective layer; 5. Connection base; 6. Heating plate; 7. Heat insulation plate; 8. Heating module; 9. Control module; 10. Temperature sensor; 11. Wear-resistant pad; 12. Angle valve; 13. Pressure reducing valve; 14. Connection port. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-4The utility model provides a technical solution: a liquefied petroleum gas cylinder with a built-in thermal insulation layer, comprising a cylinder body 1, a thermal insulation layer 2 is fixedly connected to the surface of the cylinder body 1, a thermal insulation layer 3 is fixedly connected to the surface of the thermal insulation layer 2, a protective layer 4 is fixedly connected to the surface of the thermal insulation layer 3, the thermal insulation layer 2 is made of polyurethane foam, the thermal insulation layer 3 is made of polyvinyl chloride, the protective layer 4 is made of polyurethane rubber, and the thermal insulation board 7 is made of rock wool board. The thermal insulation layer 2 is made of polyurethane foam, which has ultra-low temperature thermal conductivity and heat-resistant and heat-insulating properties. The thermal insulation layer 3 is made of polyvinyl chloride, so that its thermal conductivity is not obvious and the chemical stability is high. The protective layer 4 is used to reinforce and protect the thermal insulation structure, so that the thermal insulation layer 2 and the thermal insulation layer 3 can effectively and long-term exert the thermal insulation and heat-insulating capabilities of the cylinder body 1, greatly reduce the heat transfer efficiency of the storage structure, and help reduce the impact of external temperature changes on the inside of the cylinder body 1.

[0024] A connecting base 5 is fixedly installed at the lower end of the cylinder body 1, a heating plate 6 is fixedly installed on the inner side of the connecting base 5 at the lower end of the cylinder body 1, a heat insulation plate 7 is fixedly installed at the lower end of the heating plate 6, a heating module 8 is fixedly installed at the front end of the surface of the connecting base 5, a control module 9 is fixedly installed at the front end of the heating module 8, a temperature sensor 10 is fixedly installed at the upper end of the heating module 8, the connecting base 5 is designed in an annular structure, the surface of the connecting base 5 is sprayed with corrosion-resistant paint, a wear-resistant pad 11 is fixedly installed at the lower end of the connecting base 5, and the wear-resistant pad 11 is made of the same polyurethane rubber material, the heating plate 6 is electrically connected to the heating module 8, and the heating module 8 and the temperature sensor 10 are fixedly installed. They are all electrically connected to the control module 9. An angle valve 12 is arranged at the upper end of the cylinder body 1. A pressure reducing valve 13 is fixedly connected to the angle valve 12. A connecting port 14 is arranged on the pressure reducing valve 13. When the cylinder is in a low temperature environment for a long time in winter, the control module 9 controls the heating module 8 to heat the heating plate 6, and at the same time cooperates with the heat insulation plate 7 to reduce the heat dissipation and improve the thermal conductivity of the cylinder body 1, thereby effectively solving the influence of low temperature on the liquefied petroleum gas cylinder. The temperature sensor 10 is used to monitor the heating structure. When a certain temperature is reached, the control module 9 is controlled to turn off the heating to prevent the temperature from being too high, which is beneficial to improving the safety of the use of the liquefied petroleum gas cylinder.

[0025] During operation, the thermal insulation layer 2 is made of polyurethane foam material, which has ultra-low temperature thermal conductivity and heat-resistant and heat-insulating properties. The thermal insulation layer 3 is made of polyvinyl chloride material, so its thermal conductivity is not obvious and the chemical stability is high. The protective layer 4 is used to reinforce the thermal insulation structure, which is convenient for the thermal insulation layer 2 and the thermal insulation layer 3 to effectively exert the thermal insulation ability of the cylinder body 1 for a long time, greatly reducing the heat transfer efficiency of the storage structure. When the temperature is low for a long time in winter, the control module 9 controls the heating module 8 to heat the heating plate 6, and at the same time cooperates with the thermal insulation plate 7 to reduce the heat dissipation, thereby improving the thermal conductivity efficiency of the cylinder body 1, thereby effectively solving the influence of low temperature on the liquefied petroleum gas cylinder. The temperature sensor 10 is used to monitor the heating structure. When a certain temperature is reached, the control module 9 is controlled to turn off the heating to prevent the temperature from being too high.

[0026] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

Claims

1. A liquefied petroleum gas cylinder with a built-in heat insulation layer, comprising a cylinder body (1), characterized in that: The surface of the steel cylinder body (1) is fixedly connected with a heat preservation layer (2), the surface of the heat preservation layer (2) is fixedly connected with a heat insulating layer (3), the surface of the heat insulating layer (3) is fixedly connected with a protective layer (4), the lower end of the steel cylinder body (1) is fixedly installed with a connection base (5), the lower end of the steel cylinder body (1) is located inside the connection base (5) and a heating plate (6) is fixedly installed, the lower end of the heating plate (6) is fixedly installed with a heat insulating plate (7), the front end of the surface of the connection base (5) is fixedly installed with a heating module (8), the front end of the heating module (8) is fixedly installed with a control module (9), and the upper end of the heating module (8) is fixedly installed with a temperature sensor (10).

2. A liquefied petroleum gas cylinder with a built-in heat insulation layer according to claim 1, characterized in that: The thermal insulation layer (2) is made of polyurethane foam material, and the heat insulating layer (3) is made of polyvinyl chloride material.

3. A liquefied petroleum gas cylinder with a built-in heat insulation layer according to claim 1, characterized in that: The protective layer (4) is made of polyurethane rubber, and the heat insulation board (7) is made of rock wool board.

4. A liquefied petroleum gas cylinder with a built-in heat insulation layer according to claim 1, characterized in that: The connecting base (5) is designed as an annular structure, and the surface of the connecting base (5) is sprayed with corrosion-resistant paint.

5. A liquefied petroleum gas cylinder with a built-in heat insulation layer according to claim 4, characterized in that: A wear-resistant pad (11) is fixedly mounted on the lower end of the connecting base (5), and the wear-resistant pad (11) is made of the same polyurethane rubber material.

6. A liquefied petroleum gas cylinder with a built-in heat insulation layer according to claim 1, characterized in that: The heating plate (6) is electrically connected to the heating module (8), and the heating module (8) and the temperature sensor (10) are both electrically connected to the control module (9).

7. The liquefied petroleum gas cylinder with a built-in heat insulation layer according to claim 1, characterized in that: An angle valve (12) is provided at the upper end of the cylinder body (1), a pressure reducing valve (13) is fixedly connected to the angle valve (12), and a connecting port (14) is provided on the pressure reducing valve (13).

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