Nitrogen protection system

Abstract

The utility model belongs to the technical field of oil storage tanks, and particularly relates to a nitrogen protection system which comprises a main support and an auxiliary support fixedly connected to one end of the main support, a plurality of nitrogen main tanks are fixedly installed on the inner side of the main support through first hoops, and nitrogen adjusting mechanisms are fixedly installed on the auxiliary support and a second main pipe. And a water vapor filtering mechanism is mounted between the first main pipe and the second main pipe. The nitrogen output from the nitrogen main tank can be filtered through activated carbon in the water vapor filtering mechanism, and water vapor in the nitrogen can be adsorbed, so that the nitrogen is dried, the nitrogen protection effect is improved, and oil in the oil tank is prevented from being polluted; nitrogen is supplemented into the nitrogen balance tank through the nitrogen main tank, then nitrogen is filled into the external oil storage tank through the nitrogen balance tank, and therefore it can be guaranteed that the nitrogen is stably input into the oil storage tank, and safety of the oil storage tank is guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field of oil storage tanks, and in particular relates to a nitrogen protection system. Background Art

[0002] In the oil tank area, there is a certain amount of space above the oil stored in the oil tank. During the long-term storage process, the oil will volatilize to a certain extent. The volatilized oil gas will not only cause safety accidents such as combustion and explosion, but also endanger the physical health of employees and reduce the economic benefits of the enterprise. Therefore, it is necessary to fill the space above the oil with safe gas to achieve the purpose of protection, such as nitrogen protection system.

[0003] A Chinese patent discloses a nitrogen gas conditioning process for oil storage tanks (authorization announcement number CN107963354B). This patented technology regulates and buffers the nitrogen in the oil storage tank to achieve the purpose of automatic pressure release and filling of nitrogen in the oil storage tank. It can effectively avoid the damage of negative pressure to the oil storage tank, effectively maintain the process concentration of nitrogen in the oil storage tank for a long time, reduce the risk of edible oil deterioration, and also reduce the number and workload of manual maintenance, improve the utilization rate of nitrogen, and reduce the operating cost of nitrogen filling of the oil storage tank. However, it does not filter the water vapor in the nitrogen, which may cause oil pollution in the oil tank. Utility Model Content

[0004] The purpose of the utility model is to provide a nitrogen protection system to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A nitrogen protection system comprises a main support and an auxiliary support fixedly connected to one end of the main support, wherein a plurality of nitrogen main tanks are fixedly installed on the inner side of the main support through a first clamp, and a first main pipe is fixedly connected to the upper end of the main support through a first clamp, a second main pipe is fixedly installed on the upper end of the auxiliary support through a second clamp, and a nitrogen regulating mechanism is fixedly installed on the auxiliary support and the second main pipe, a water vapor filtering mechanism is installed between the first main pipe and the second main pipe, and valves are installed at the upper and lower ends of the water vapor filtering mechanism, and each of the A connecting hose is fixedly connected between the output end of the nitrogen main tank and the first trunk pipe; the water vapor filtering mechanism includes a filter, the interior of the filter is filled with activated carbon, a heat conduction pipe is spirally installed inside the activated carbon, one end of the heat conduction pipe is fixedly connected to an oil inlet pipe, and the other end of the heat conduction pipe is fixedly connected to an oil return pipe, one end of the oil inlet pipe is connected to a circulation pump, the input end of the circulation pump is connected to an oil extraction pipe, a heat conduction oil tank is installed between the oil extraction pipe and the oil return pipe, and a heater is embedded in the upper end of the heat conduction oil tank.

[0007] Furthermore, an air inlet is provided at the upper end of the filter, and a one-way valve is provided on the side of the upper end of the filter close to the air inlet, and an air outlet is provided at the lower end of the filter, and the air inlet and the air outlet are respectively connected to corresponding valves.

[0008] Furthermore, the nitrogen regulating mechanism includes a boosting pump, the input end of the boosting pump is fixedly connected to an air inlet pipe, and the output end of the boosting pump is fixedly connected to an air outlet pipe, one end of the air outlet pipe is fixedly connected to a plurality of inflation hoses, and one end of the inflation hose is connected to a nitrogen balance tank.

[0009] Furthermore, the lower end of the air inlet pipe is connected to the second main pipe, the lower end of the boost pump is provided with a base, and the lower end of the base is fixed on the second main pipe.

[0010] Furthermore, a charging and discharging valve is installed on one side of the upper end of the nitrogen balance tank close to the charging hose, a pressure gauge is installed on one end of the charging and discharging valve, and an exhaust port is provided on one end of the pressure gauge.

[0011] Furthermore, each of the nitrogen balance tanks is fixed to the inner side of the auxiliary bracket by a second clamp.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] The utility model can filter the nitrogen output from the nitrogen main tank through the activated carbon in the water vapor filtering mechanism, adsorb the water vapor in the nitrogen, so that the nitrogen is dried, the nitrogen protection effect is improved, and the oil in the oil tank is prevented from being contaminated; the heat transfer oil in the heat transfer oil tank is heated by the heater, and the recirculation pump conveys the heat transfer oil to the heat transfer pipe, and the water adsorbed in the activated carbon is vaporized through the heat transfer pipe and discharged through the one-way valve, so that the adsorption effect of the activated carbon can be guaranteed; the nitrogen is supplemented into the nitrogen balance tank through the nitrogen main tank, and then the nitrogen is filled into the external oil storage tank through the nitrogen balance tank, so that the nitrogen can be stably input into the oil storage tank, and the safety of the oil storage tank is guaranteed. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 A schematic diagram of the structure of a nitrogen protection system.

[0015] Figure 2 This is a schematic diagram of the partial dissection structure of a water vapor filtering mechanism in a nitrogen protection system.

[0016] Figure 3 for Figure 2 Schematic diagram of the enlarged structure of part A.

[0017] Figure 4 The figure is a structural schematic diagram of a nitrogen regulating mechanism in a nitrogen protection system.

[0018] Description of reference numerals:

[0019] 1. Main support; 2. Nitrogen main tank; 3. First clamp; 4. Connecting hose; 5. First main pipe; 6. First clamp; 7. Valve; 8. Water vapor filtering mechanism; 81. Filter; 82. Activated carbon; 83. Air inlet; 84. One-way valve; 85. Oil inlet pipe; 86. Circulating pump; 87. Heater; 88. Thermal oil tank; 89. Oil extraction pipe; 810. Oil return pipe; 811. Air outlet; 812. Heat transfer pipe; 9. Nitrogen regulating mechanism; 91. Booster pump; 92. Air inlet pipe; 93. Air outlet pipe; 94. Base; 95. Inflating hose; 96. Nitrogen balance tank; 97. Exhaust port; 98. Pressure gauge; 99. Charge and discharge valve; 10. Second main pipe; 11. Second clamp; 12. Second clamp; 13. Auxiliary support. DETAILED DESCRIPTION

[0020] See also Figures 1 to 4 In an embodiment of the utility model, a nitrogen protection system includes a main support 1, and an auxiliary support 13 fixedly connected to one end of the main support 1, a plurality of nitrogen main tanks 2 are fixedly installed on the inner side of the main support 1 through a first clamp 3, and a first main pipe 5 is fixedly connected to the upper end of the main support 1 through a first clamp 6, a second main pipe 10 is fixedly installed on the upper end of the auxiliary support 13 through a second clamp 11, and a nitrogen regulating mechanism 9 is fixedly installed on the auxiliary support 13 and the second main pipe 10, a water vapor filtering mechanism 8 is installed between the first main pipe 5 and the second main pipe 10, and valves 7 are installed at the upper and lower ends of the water vapor filtering mechanism 8, and a connecting hose 4 is fixedly connected between the output end of each nitrogen main tank 2 and the first main pipe 5.

[0021] exist Figure 2 and Figure 3In the embodiment, the water vapor filtering mechanism 8 includes a filter 81, the interior of the filter 81 is filled with activated carbon 82, the interior of the activated carbon 82 is spirally installed with a heat conduction pipe 812, one end of the heat conduction pipe 812 is fixedly connected to an oil inlet pipe 85, and the other end of the heat conduction pipe 812 is fixedly connected to an oil return pipe 810, one end of the oil inlet pipe 85 is connected to a circulation pump 86, the input end of the circulation pump 86 is connected to an oil extraction pipe 89, a heat conduction oil tank 88 is installed between the oil extraction pipe 89 and the oil return pipe 810, a heater 87 is embedded in the upper end of the heat conduction oil tank 88, and the interior of the heat conduction oil tank 88 is filled with heat conduction oil, and the heat conduction oil in the heat conduction oil tank 88 can be heated by the heater 87, an air inlet 83 is provided at the upper end of the filter 81, and a one-way valve 84 is provided on the side of the upper end of the filter 81 close to the air inlet 83, and the lower end of the filter 81 An air outlet 811 is provided, and the air inlet 83 and the air outlet 811 are respectively connected to the corresponding valve 7. The nitrogen output from the nitrogen main tank 2 can be filtered through the activated carbon 82, and the water vapor in the nitrogen can be adsorbed, so that the nitrogen is dried, the nitrogen protection effect is improved, and the oil in the oil storage tank is prevented from being affected; when the activated carbon 82 adsorbs too much water vapor, the two valves 7 at the upper and lower ends of the filter 81 are closed at the same time, and the heater 87 is started, and the heat-conducting oil in the heat-conducting oil tank 88 is heated by the heater 87, so that the temperature of the heat-conducting oil exceeds 100°C, such as 180°C; then the circulating pump 86 is started, and the circulating pump 86 transports the heat-conducting oil in the heat-conducting oil tank 88 to the heat-conducting pipe 812 through the oil extraction pipe 89 and the oil inlet pipe 85 in turn, and the water adsorbed in the activated carbon 82 is vaporized through heat transfer through the heat-conducting pipe 812 and discharged through the one-way valve 84.

[0022] exist Figure 1 and Figure 4In the embodiment, the nitrogen regulating mechanism 9 includes a boosting pump 91, the input end of the boosting pump 91 is fixedly connected to an air inlet pipe 92, and the output end of the boosting pump 91 is fixedly connected to an air outlet pipe 93, one end of the air outlet pipe 93 is fixedly connected to a plurality of air charging hoses 95, and one end of the air charging hose 95 is connected to a nitrogen balance tank 96. The boosting pump 91 can pump the nitrogen in the second trunk 10 into the nitrogen balance tank 96 through the air inlet pipe 92, the air outlet pipe 93 and the air charging hose 95 in sequence, and replenish the nitrogen in the nitrogen balance tank 96. The lower end of the air inlet pipe 92 is connected to the second trunk 10, so that the nitrogen in the second trunk 10 can be pumped into the air outlet pipe 93 through the boosting pump 91; a base 94 is installed at the lower end of the boosting pump 91, and the lower end of the base 94 is fixed on the first On the second main pipe 10, the booster pump 91 can be kept stable. A charging and discharging valve 99 is installed on the upper end of the nitrogen balance tank 96 near the side of the inflation hose 95. A pressure gauge 98 is installed at one end of the charging and discharging valve 99. An exhaust port 97 is provided at one end of the pressure gauge 98. The exhaust port 97 is connected to the upper end of the external oil storage tank through an air pipe. The nitrogen balance tank 96 is opened through the charging and discharging valve 99, and the nitrogen in the nitrogen balance tank 96 can enter the oil storage tank from the exhaust port 97 and the air pipe, and the oil and gas in the oil storage tank are discharged. The pressure of the nitrogen can be directly read through the pressure gauge 98. Each nitrogen balance tank 96 is fixed to the inner side of the auxiliary bracket 13 through the second clamp 12, so that the second clamp 12 can be kept stable without tipping over.

[0023] The working principle of the utility model is as follows: first, the exhaust port 97 is connected to the upper end of the external oil storage tank through an air pipe, and the nitrogen balance tank 96 is opened through the charging and discharging valve 99, and the nitrogen in the nitrogen balance tank 96 enters the oil storage tank from the exhaust port 97 and the air pipe, and discharges the oil and gas in the oil storage tank.

[0024] At the same time, the nitrogen in the nitrogen main tank 2 passes through the connecting hose 4, the first trunk 5, and the valve 7 in sequence, and then enters the water vapor filtering mechanism 8; the activated carbon 82 in the water vapor filtering mechanism 8 adsorbs the water vapor in the nitrogen, so that the nitrogen remains dry; the dried nitrogen enters the second trunk 10, and then the booster pump 91 is started, 91 pumps the nitrogen in the second trunk 10 into the nitrogen balance tank 96 through the air inlet pipe 92, the air outlet pipe 93 and the charging hose 95 in sequence, thereby replenishing nitrogen into the nitrogen balance tank 96, so that the nitrogen in the nitrogen balance tank 96 is maintained at a certain amount, effectively avoiding the situation where the oil and gas in the oil storage tank cannot be discharged smoothly due to insufficient nitrogen.

[0025] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A nitrogen protection system, comprising a main support (1), and an auxiliary support (13) fixedly connected to one end of the main support (1), characterized in that: A plurality of nitrogen main tanks (2) are fixedly mounted on the inner side of the main support (1) via a first clamp (3), and a first main pipe (5) is fixedly connected to the upper end of the main support (1) via a first clamp (6), a second main pipe (10) is fixedly mounted on the upper end of the auxiliary support (13) via a second clamp (11), and a nitrogen regulating mechanism (9) is fixedly mounted on the auxiliary support (13) and the second main pipe (10), a water vapor filtering mechanism (8) is mounted between the first main pipe (5) and the second main pipe (10), and valves (7) are mounted at the upper and lower ends of the water vapor filtering mechanism (8), and a connecting hose (4) is fixedly connected between the output end of each nitrogen main tank (2) and the first main pipe (5). The water vapor filtering mechanism (8) comprises a filter (81), the interior of the filter (81) is filled with activated carbon (82), the interior of the activated carbon (82) is spirally installed with a heat conduction pipe (812), one end of the heat conduction pipe (812) is fixedly connected to an oil inlet pipe (85), and the other end of the heat conduction pipe (812) is fixedly connected to an oil return pipe (810), one end of the oil inlet pipe (85) is connected to a circulation pump (86), the input end of the circulation pump (86) is connected to an oil extraction pipe (89), a heat conduction oil tank (88) is installed between the oil extraction pipe (89) and the oil return pipe (810), and a heater (87) is embedded and installed at the upper end of the heat conduction oil tank (88).

2. The nitrogen protection system according to claim 1, characterized in that: An air inlet (83) is provided at the upper end of the filter (81), and a one-way valve (84) is provided on one side of the upper end of the filter (81) close to the air inlet (83). An air outlet (811) is provided at the lower end of the filter (81), and the air inlet (83) and the air outlet (811) are respectively connected to corresponding valves (7).

3. The nitrogen protection system according to claim 1, characterized in that: The nitrogen regulating mechanism (9) comprises a booster pump (91), an input end of the booster pump (91) is fixedly connected to an air inlet pipe (92), and an output end of the booster pump (91) is fixedly connected to an air outlet pipe (93), one end of the air outlet pipe (93) is fixedly connected to a plurality of air charging hoses (95), and one end of the air charging hose (95) is connected to a nitrogen balance tank (96).

4. The nitrogen protection system according to claim 3, characterized in that: The lower end of the air inlet pipe (92) is connected to the second main pipe (10), and the lower end of the booster pump (91) is provided with a base (94), and the lower end of the base (94) is fixed to the second main pipe (10).

5. The nitrogen protection system according to claim 3, characterized in that: A charging and discharging valve (99) is installed on one side of the upper end of the nitrogen balance tank (96) close to the charging hose (95), a pressure gauge (98) is installed on one end of the charging and discharging valve (99), and an exhaust port (97) is provided on one end of the pressure gauge (98).

6. The nitrogen protection system according to claim 3, characterized in that: Each of the nitrogen balance tanks (96) is fixed to the inner side of the auxiliary bracket (13) via a second clamp (12).

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