Pipeline oil stain detection system

Abstract

The utility model relates to a pipeline oil stain detection system which comprises an oil tank with a built-in heating coil and a detection cylinder, the bottom of the detection cylinder is provided with a condensate water inlet pipe, the top of the detection cylinder is provided with a ventilation valve and an oil content probe, and the side wall of the detection cylinder is provided with a condensate water outlet pipe and a visual observation mirror. An outlet in the upper end of the condensed water outlet pipe and the visible observation mirror are located at the same height of the detection barrel, an inlet in the lower end of the condensed water outlet pipe extends to the bottom of the detection barrel, the oil content probe extends into the liquid level of the detection barrel and is electrically connected with the alarm lamp post, and an outlet of the heating coil is connected with the condensed water outlet pipe. The oil contamination detection device is simple in structure, reliable and safe, oil contamination detection is achieved through the simple physical principle, a sampling pump does not need to be additionally arranged, and leakage detection of the steam heating coil is achieved through the combined action of the visual observation mirror and the oil content probe.

Description

Technical Field

[0001] The utility model relates to the technical field of ships, in particular to a pipeline oil pollution detection system. Background Art

[0002] Liquid cargo ships are mainly used to carry liquid finished oil products. According to the characteristics of different oil products, some oil products need to be heated by heating coils during transportation. The heating heat source mainly comes from the steam in the engine room. After the steam is heat exchanged, it turns into condensate and returns to the boiler for further heating. If the heating coil in the cargo oil tank leaks, the cargo oil will seep into the condensate pipeline and return to the boiler. This situation is very dangerous and may explode in extreme cases. Therefore, it is very important to detect the leak as soon as possible. Utility Model Content

[0003] The utility model aims to overcome the above-mentioned shortcomings and provides a pipeline oil pollution detection system with simple structure, reliability and safety, and uses simple physical principles to realize oil pollution detection without the need for additional sampling pumps.

[0004] The purpose of the utility model is achieved in this way:

[0005] A pipeline oil pollution detection system comprises an oil tank with a built-in heating coil and a detection cylinder, wherein a condensate inlet pipe is provided at the bottom of the detection cylinder, a breathable valve and an oil probe are provided at the top, a condensate outlet pipe and a visual observation mirror are provided on the side wall, an upper outlet of the condensate outlet pipe and the visual observation mirror are located at the same height of the detection cylinder, a lower inlet of the condensate outlet pipe extends to the bottom of the detection cylinder, the oil probe extends into the liquid level of the detection cylinder, the oil probe is electrically connected to an alarm light column, and the outlet of the heating coil is connected to the condensate outlet pipe.

[0006] Preferably, the upper outlet of the condensate outlet pipe and the visual observation mirror are both arranged at four-fifths of the height of the detection cylinder, and the liquid level height in the detection cylinder is maintained at four-fifths of the height of the cylinder.

[0007] Preferably, the outlet of the heating coil is divided into two routes, which are respectively connected to a detection inlet pipeline and a first condensate outlet pipeline. One end of the detection inlet pipeline is connected to a condensate inlet pipe, an inlet valve is provided on the detection inlet pipeline, and the condensate outlet pipe discharges condensate through a second outlet pipeline, an outlet valve is provided on the second outlet pipeline, and a bypass valve is provided on the first outlet pipeline.

[0008] Preferably, when detecting oil pollution, the inlet valve, outlet valve and air valve are opened, and the bypass valve is closed to allow condensed water to enter the detection cylinder. When the liquid level is observed through the visual observation mirror, the air valve is closed.

[0009] Preferably, when the oil probe is damaged and needs to be repaired, the inlet valve and the outlet valve are closed and the bypass valve is opened.

[0010] The beneficial effects of the utility model are:

[0011] The system is simple, reliable, safe, low-cost and easy to operate. It can detect steam heating coil leakage through the visual observation mirror and oil probe. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of the utility model.

[0013] Figure 2 It is a schematic diagram of the structure of the detection cylinder.

[0014] Among them: heating coil 1; oil tank 2; detection cylinder 3; condensate inlet pipe 4; oil probe 5; condensate outlet pipe 6; visual observation mirror 7; air valve 8; warning light column 9; inlet valve 10; outlet valve 11; bypass valve 12. DETAILED DESCRIPTION

[0015] See also Figure 1 and Figure 2 The utility model relates to a pipeline oil pollution detection system, comprising an oil tank 2 with a built-in heating coil 1 and a detection cylinder 3, the bottom of the detection cylinder 3 is provided with a condensate inlet pipe 4, the top is provided with an air vent and an oil probe 5, the side wall is provided with a condensate outlet pipe 6 and a visual observation mirror 7, the visual observation mirror 7 is used to observe the liquid level in the detection cylinder 3, the upper end outlet of the condensate outlet pipe 6 and the visual observation mirror 7 are located at the same height of the detection cylinder, both are arranged at four-fifths of the height of the detection cylinder 3, the liquid level height in the detection cylinder 3 is maintained at four-fifths of the cylinder height, and the lower end inlet of the condensate outlet pipe 6 extends to the bottom of the detection cylinder 3. The air vent is connected to the air vent valve 8, the oil probe 5 extends into the liquid level of the detection cylinder 3, the oil probe 5 is electrically connected to the alarm light column 9, the outlet of the heating coil 1 is divided into two paths, which are respectively connected to the detection inlet pipeline and the first condensate outlet pipeline, one end of the detection inlet pipeline is connected to the condensate inlet pipe 4, the detection inlet pipeline is provided with an inlet valve 10, the condensate outlet pipe 6 discharges condensate through the second outlet pipeline, the second outlet pipeline is provided with an outlet valve 11, and the first outlet pipeline is provided with a bypass valve 12.

[0016] Before the system works, open the inlet valve 10, outlet valve 11 and breathable valve 8, close the bypass valve 12, let the condensate enter the detection cylinder 3, observe the liquid level from the visual observation mirror 7, and then close the breathable valve 8. Since the upper outlet of the condensate outlet pipe 6 is installed at 4 / 5 of the height of the detection cylinder 3, the liquid level in the detection cylinder 3 will be maintained at four fifths of the cylinder height. The density of oil is smaller than that of condensate, so the oil will float above the condensate and form an oil-water interface. Since the lower inlet of the condensate outlet pipe 6 extends to the bottom of the detection cylinder, the oil will not be discharged with the condensate. The oil probe 5 is installed on the top of the detection cylinder 3 and extends to the oil-water interface. In this way, during the steam condensation process, once the condensate is mixed with oil, it will float at four fifths of the height of the detection cylinder 3, so that it will be detected by the oil probe 5, and the signal will be transmitted to the alarm lamp post 9, and the alarm lamp post 9 will alarm. After receiving the alarm, the operator can observe the oil pollution situation through the observation mirror which is also installed at four-fifths of the height of the detection cylinder and respond in time.

[0017] When the oil probe 5 is damaged and needs to be repaired, the inlet valve 10 and the outlet valve 11 are closed, the bypass valve 12 is opened, and the oil probe 5 is disassembled, repaired, or replaced.

[0018] In addition to the above embodiments, the present invention also includes other implementation modes. Any technical solutions formed by equivalent transformation or equivalent replacement should fall within the protection scope of the claims of the present invention.

Claims

1. A pipeline oil pollution detection system, characterized by: It includes an oil tank with a built-in heating coil and a detection cylinder. The bottom of the detection cylinder is provided with a condensate inlet pipe, the top is provided with a breathable valve and an oil probe, the side wall is provided with a condensate outlet pipe and a visual observation mirror, the upper outlet of the condensate outlet pipe and the visual observation mirror are located at the same height of the detection cylinder, the lower inlet of the condensate outlet pipe extends to the bottom of the detection cylinder, the oil probe extends into the liquid level of the detection cylinder, the oil probe is electrically connected to the alarm light column, and the outlet of the heating coil is connected to the condensate outlet pipe.

2. A pipeline oil pollution detection system according to claim 1, characterized in that: The upper end outlet of the condensate outlet pipe and the visual observation mirror are both arranged at four-fifths of the height of the detection cylinder, and the liquid level height in the detection cylinder is maintained at four-fifths of the height of the cylinder.

3. A pipeline oil pollution detection system according to claim 1 or 2, characterized in that: The outlet of the heating coil is divided into two routes, which are respectively connected to the detection inlet pipeline and the first condensate outlet pipeline. One end of the detection inlet pipeline is connected to the condensate inlet pipe. An inlet valve is arranged on the detection inlet pipeline. The condensate outlet pipe discharges condensate through the second outlet pipeline. An outlet valve is arranged on the second outlet pipeline. A bypass valve is arranged on the first outlet pipeline.

4. A pipeline oil pollution detection system according to claim 3, characterized in that: When detecting oil pollution, open the inlet valve, outlet valve and air valve, close the bypass valve, and allow condensed water to enter the detection cylinder. When the liquid level is observed through the visual observation mirror, close the air valve.

5. A pipeline oil pollution detection system according to claim 3, characterized in that: When the oil probe is damaged and needs maintenance, close the inlet valve and outlet valve and open the bypass valve.

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