Environment-friendly petroleum storage device

Abstract

The utility model discloses an environmental protection type petroleum storage device, including the jar body, the one side of jar body is provided with the oil pipeline, the jar body outside still is provided with the steam recovery mechanism, through the innovative design of steam recovery mechanism, utilize the condensing device and realize the liquefied recovery of oil gas steam, cooperate with the pipeline system who has the pressure -relief function, can recover volatile oil gas, significantly reduce VOCs emission, and the tee joint structure of first pipeline and pressure -relief pipeline can guarantee normal pressure recovery, can also automatically shunt pressure -relief when overpressure, double -safeguard the security of storage tank.

Description

Technical Field

[0001] This utility model relates to the field of petroleum storage technology, and in particular to an environmentally friendly petroleum storage device. Background Technology

[0002] In the field of oil storage, traditional storage tanks generally use open breather valves or simple pressure relief devices to handle the problem of oil and gas volatilization. In actual operation, volatile organic compound (VOC) vapors generated inside the storage tank due to temperature changes are directly discharged into the atmosphere through the breather valve, causing the following technical defects: First, the directly discharged untreated oil and gas not only leads to the loss of petroleum products, but also forms a serious source of air pollution; Second, when the vapor pressure inside the tank exceeds the safety threshold, conventional pressure relief devices only discharge high-pressure vapors into the atmosphere through a one-way pressure relief pipe, which neither recovers energy nor exacerbates environmental pollution. Utility Model Content

[0003] The purpose of this invention is to overcome the problem that volatile organic compound (VOC) vapors in existing oil storage tanks are easily emitted directly through the breather valve, causing environmental pollution, and to provide an environmentally friendly oil storage device.

[0004] An environmentally friendly oil storage device includes a tank body, with an oil pipeline installed on one side of the tank body; a steam recovery mechanism is also installed outside the tank body.

[0005] The steam recovery mechanism includes

[0006] A condensation device fixedly installed on the outer wall of the tank.

[0007] A first pipe is connected to the top of the tank, and the other end of the first pipe is connected to the inlet of the condensing device.

[0008] The second pipe has one end connected to the outlet of the condenser and the other end connected to the inside of the tank.

[0009] A pressure relief pipe is also installed on the first pipe via a tee.

[0010] Furthermore, the tank is also equipped with a cooling system, which includes...

[0011] The spray ring is fixedly installed on the upper side wall of the tank by a bracket.

[0012] Pumps installed outside the tank.

[0013] Water supply pipes used to connect the spray ring and the pump.

[0014] Furthermore, an annular collection trough is provided at the bottom of the outer wall of the tank, and the pump is located in the annular collection trough.

[0015] Furthermore, the tank body includes an inner tank body and an outer tank body, and a filling cavity is provided between the inner tank body and the outer tank body for filling with inert gas.

[0016] Furthermore, the outer wall of the inner tank is also uniformly equipped with multiple leakage monitoring sensors.

[0017] The beneficial effects of this utility model are: through the innovative design of the steam recovery mechanism, the liquefaction and recovery of oil and gas vapors are achieved by using the condensation device. Combined with the pipeline system with pressure relief function, it can recover volatile oil and gas, significantly reducing VOC emissions. At the same time, the three-way connection structure between the first pipeline and the pressure relief pipeline can ensure normal pressure recovery and automatically divert and relieve pressure when overpressure occurs, providing double protection for the safety of the storage tank. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the device;

[0019] Figure 2 This is a schematic diagram of the device from another angle.

[0020] Figure 3 This is a top view of the device's structure.

[0021] Figure 4 This is a schematic diagram of the AA-plane cross-sectional structure;

[0022] Figure 5 This is a schematic diagram of the BB section structure;

[0023] In the diagram, 1-tank body, 11-oil pipeline, 101-outer tank body, 102-inner tank body, 103-packing cavity, 2-cooling system, 21-pump, 22-water pipeline, 23-spray ring, 24-support, 3-steam recovery mechanism, 31-first pipeline, 32-pressure relief pipeline, 33-condensation device, 34-second pipeline, 4-annular collection tank, 5-leakage monitoring sensor, 61-first valve, 62-second valve, 63-third valve, 64-fourth valve. Detailed Implementation

[0024] The following specific examples illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model. It should be noted that, unless otherwise specified, the following embodiments and features described therein can be combined with each other.

[0025] It should be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of the present invention. Therefore, the drawings only show the components related to the present invention and are not drawn according to the number, shape and size of the components in actual implementation. In actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0026] Example 1

[0027] like Figures 1-5 As shown, an environmentally friendly oil storage device includes a tank 1, and an oil pipeline 11 is provided on one side of the tank 1. In this solution, the tank 1 has the tank structure of the prior art, and has conventional detection components such as a blast hole, internal air pressure and temperature sensors (omitted in the figure). The oil pipeline 11 is used for the output and output of oil. In order to realize the normal use of the oil pipeline 11, a third valve is provided on the oil pipeline 11.

[0028] A steam recovery mechanism 3 is also provided on the outside of the tank body 1. The steam recovery mechanism 3 includes a condenser 33 fixedly installed on the outer wall of the tank body 1, connected to a first pipe 31 located at the top of the tank body 1, with the other end of the first pipe 31 connected to the inlet end of the condenser 33; a second pipe 34, with one end connected to the outlet end of the condenser 33 and the other end connected to the inside of the tank body 1; a pressure relief pipe 32 is also provided on the first pipe 31 via a tee pipe. In this scheme, when the corresponding sensor detects an increase in the temperature inside the tank, the volatilized VOCs vapor (mainly composed of C5-C7 alkanes) enters the condenser 33 through the first pipe 31. After the refrigeration unit starts, the vapor passes through the heat exchange tubes, and the refrigerant outside the tubes lowers the vapor temperature, causing the VOCs to condense into liquid and flow back into the tank by gravity through the second pipe 34. When overpressure is detected in the tank, the overpressure vapor is automatically discharged through the pressure relief pipe 32. In this design, to ensure the normal operation of the first pipe 31, the second pipe 34, and the pressure relief pipe 32, a second valve 62 is installed on the first pipe 31, and a first valve 61 is installed on the pressure relief pipe 32. In this design, the condensing device 33 is a refrigeration unit as described in the prior art, and will not be elaborated upon further.

[0029] To further ensure the safety of tank 1, a cooling system 2 is also provided on tank 1. The cooling system 2 includes a spray ring 23 fixedly installed on the upper side wall of tank 1 by a bracket 24, a pump 21 externally located on the outside of tank 1, and a water supply pipe 22 connecting the spray ring 23 and the pump 21. An annular collection trough 4 is also provided at the bottom of the outer wall of tank 1, and the pump 21 is located in the annular collection trough 4. The annular spray ring 23 is installed on the upper part of the outer wall of tank 1 and is fixed by welding with eight sets of evenly arranged brackets 24. The annular spray ring 23 is provided with multiple atomizing nozzles or water flow nozzles, and the spray direction is obliquely pointed towards the outer wall of tank 1. The ground pump 21 is connected to the annular spray ring 23 through the water supply pipe 22. When the surface temperature of tank 1 rises, the temperature sensor (omitted in the figure) triggers the pump 21 to start, and the spray water film covers the surface of tank 1, realizing rapid cooling of the surface of tank 1. The spray water flows through the tank wall to the bottom annular collection tank 4, which has a U-shaped cross section. The tank is equipped with a filter screen to separate impurities. The water then flows back to the inlet of the pump 21 to form a closed-loop system, which enables the recycling of the spray water.

[0030] On the other hand, to further enhance the safety performance of tank 1, tank 1 includes an inner tank 102 and an outer tank 101, with a filling cavity 103 between the inner tank 102 and the outer tank 101 for filling with inert gas. In this design, tank 1 adopts a double-layer structure. The inner tank 102 is made of stainless steel or fiberglass, and its inner wall can be coated with a nano-ceramic coating to reduce oil adhesion and chemical corrosion. The outer tank 101 is made of carbon steel with an epoxy resin anti-corrosion layer or composite materials. The gap between the inner tank 102 and the outer tank 101 forms the filling cavity 103. The cavity 103 is filled with nitrogen to a slightly positive pressure through an injection valve (omitted in the figure), and a pressure sensor (omitted in the figure) monitors it in real time, automatically replenishing the nitrogen when the pressure decreases.

[0031] Preferably, in order to monitor the inner tank 102 in real time, multiple leakage monitoring sensors 5 are evenly arranged on the outer wall of the inner tank 102. Specifically, capacitive leakage monitoring sensors 5 (model LS-200) are arranged in a grid pattern on the outer wall of the inner tank 102. A 5mm gap is maintained between the sensor electrode and the tank wall. When oil seeps into the gap between the two tanks, the change in the dielectric constant of the medium triggers an alarm.

[0032] In this solution, the sensor module and valve module are wirelessly connected to an external control center.

[0033] The embodiments described above merely illustrate specific implementations of this utility model, and while the descriptions are detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model.

Claims

1. An environmentally friendly petroleum storage device, characterized in that: Includes a tank body (1), on one side of which is provided an oil pipeline (11); a steam recovery mechanism (3) is also provided on the outside of the tank body (1); The steam recovery mechanism (3) includes A condensation device (33) is fixedly installed on the outer wall of the tank (1). A first pipe (31) is connected to the top of the tank (1), and the other end of the first pipe (31) is connected to the inlet end of the condenser (33); The second pipe (34) has one end connected to the outlet end of the condenser (33) and the other end connected to the inside of the tank (1); A pressure relief pipe (32) is also provided on the first pipe (31) via a tee pipe.

2. The environmentally friendly petroleum storage device according to claim 1, characterized in that: The tank (1) is also equipped with a cooling system (2), the cooling system (2) including The spray ring (23) is fixedly installed on the upper side wall of the tank (1) by a bracket (24). Pump (21) is located outside the tank (1). Water supply pipe (22) for connecting the spray ring (23) and the pump (21).

3. The environmentally friendly petroleum storage device according to claim 2, characterized in that: The bottom of the outer wall of the tank (1) is also provided with an annular collection trough (4), and the pump (21) is located in the annular collection trough (4).

4. The environmentally friendly petroleum storage device according to claim 1, characterized in that: The tank (1) includes an inner tank (102) and an outer tank (101), and a filling cavity (103) is provided between the inner tank (102) and the outer tank (101) for filling with inert gas.

5. The environmentally friendly petroleum storage device according to claim 4, characterized in that: The outer wall of the inner tank (102) is also uniformly provided with multiple leakage monitoring sensors (5).

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