Marine diesel engine air cooler pipeline leakage on-line monitoring device

Abstract

The utility model discloses a ship diesel engine air cooler pipeline leakage on-line monitoring device which is characterized by comprising a condensate water collecting box, a water inlet pipe, a water drainage pipe, a first salinity sensor, a second salinity sensor and an alarm mechanism. The first salinity sensor and the second salinity sensor are fixed to the side wall of the condensate water collecting box in a sealed mode and electrically connected with the alarm mechanism, one end of the water inlet pipe is in butt joint with a condensate water outlet in the air cooler, the other end of the water inlet pipe is inserted into the condensate water collecting box, and the lower end of the water inlet pipe is lower than the second salinity sensor. The drain pipe is inserted into the upper end of the condensate water collecting box, the end position of the insertion end is higher than the first salinity sensor, a discharge port is formed in the lower end of the condensate water collecting box, and a cock is arranged on the discharge port; the on-line monitoring device has the advantages that whether seawater leakage exists in the cooling pipe or not is judged by monitoring the salinity of the condensate water in the air cooler in real time, detection is accurate, simple and convenient, and the whole on-line monitoring device is simple in structure and low in cost.

Description

Technical Field

[0001] This utility model relates to the field of pipeline leakage monitoring technology, and in particular to an online monitoring device for pipeline leakage in ship diesel engine air coolers. Background Technology

[0002] Since ships spend most of their time at sea, the air coolers used in their main propulsion diesel engines primarily use seawater as the cooling medium. However, seawater is corrosive, and if the seawater cooling pipes in the air cooler are damaged, seawater leaks can occur, corroding other equipment connected to the air cooler and causing malfunctions. Currently, there is no readily available and convenient device for real-time monitoring of seawater leaks in the air cooler's cooling pipes. Summary of the Invention

[0003] The technical problem to be solved by this utility model is to provide an online monitoring device for leakage in the pipeline of a ship's diesel engine air cooler, which can monitor in real time whether there is seawater leakage in the cooling pipe of the air cooler, and the whole device has a simple structure and is easy to use.

[0004] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: an online monitoring device for leakage in the pipeline of a marine diesel engine air cooler, comprising a condensate collection box, an inlet pipe, a drain pipe, a first salinity sensor, a second salinity sensor, and an alarm mechanism. The first and second salinity sensors are sealed and fixed on the side wall of the condensate collection box and electrically connected to the alarm mechanism. The first salinity sensor is located above the second salinity sensor. One end of the inlet pipe is connected to the condensate outlet on the air cooler, and the other end is inserted into the condensate collection box with its lower end lower than the second salinity sensor. The drain pipe is inserted into the upper end of the condensate collection box with its inserted end higher than the first salinity sensor. A drain port is provided at the lower end of the condensate collection box, and a stopcock is provided on the drain port.

[0005] Furthermore, the first and second salinity sensors are screwed and fixed to the side wall of the condensate collection box, and sealed by rubber gaskets.

[0006] Furthermore, the first and second salinity sensors are conductivity sensors.

[0007] Furthermore, the alarm mechanism is a buzzer and / or a flashing light.

[0008] Furthermore, the alarm mechanism is a monitoring display screen.

[0009] Furthermore, a drain pump is installed on the drain pipe, and a liquid level sensor is fixedly installed on the side wall of the condensate collection box. The position of the liquid level sensor is higher than the end of the insertion end of the drain pipe.

[0010] Furthermore, a power supply assembly is provided on the outer wall of the condensate collection box, and a low-voltage alarm is connected to the power supply assembly.

[0011] Compared with the prior art, the advantages of this utility model are that it can determine whether there is seawater leakage in the cooling pipe by real-time monitoring of the salinity of the condensate in the air cooler. The detection is accurate and simple, and it can prevent corrosion of other equipment connected to the air cooler due to seawater leakage in the cooling pipe. The monitoring is safe and reliable, and the entire online monitoring device has a simple structure and low cost. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model. Detailed Implementation

[0013] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0014] As shown in the figure, an online monitoring device for leaks in the piping of a marine diesel engine air cooler includes a condensate collection box 1, an inlet pipe 2, a drain pipe 3, a first salinity sensor 4, a second salinity sensor 5, and an alarm mechanism. The first salinity sensor 4 and the second salinity sensor 5 are sealed and fixed to the side wall of the condensate collection box 1 and electrically connected to the alarm mechanism. The first salinity sensor 4 is located above the second salinity sensor 5. Both the first and second salinity sensors are conductivity sensors. One end of the inlet pipe 2 is connected to the condensate drain outlet on the air cooler, and the other end is inserted into the condensate collection box 1, with its lower end below the second salinity sensor 5, to prevent excessive condensate flow rate in the inlet pipe 2 from impacting the salinity sensors and affecting their performance. Monitoring results: The drain pipe 3 is inserted into the upper end of the condensate collection box 1, and the end of the inserted end is higher than the first salinity sensor 4. A drain pump 6 is installed on the drain pipe 3. A liquid level sensor 7 is fixedly installed on the side wall of the condensate collection box 1. The liquid level sensor 7 is positioned higher than the end of the inserted end of the drain pipe 3. A power supply assembly 8 is installed on the outer wall of the condensate collection box 1. The power supply assembly 8 is used to provide power to the first salinity sensor 4, the second salinity sensor 5, the liquid level sensor 7, and the drain pump 6. A low-voltage alarm 9 is connected to the power supply assembly 8. When the voltage of the power supply assembly 8 is low, the low-voltage alarm 9 will sound an alarm, reminding the user to replace the power supply or recharge it. A drain port is provided at the lower end of the condensate collection box 1, and a stopcock 10 is installed on the drain port.

[0015] In the above embodiments, the first salinity sensor 4 and the second salinity sensor 5 can be screwed to the side wall of the condensate collection box 1 and sealed by a rubber gasket 11. The alarm mechanism can be a buzzer and / or a flashing light. When the first salinity sensor 4 or the second salinity sensor 5 detects that the salinity of the condensate exceeds the standard, an audible and visual alarm can be triggered by the buzzer and / or the flashing light. Alternatively, the alarm mechanism can be a monitoring display screen. When the salinity of the condensate exceeds the standard, it can be directly displayed on the monitoring display screen to remind the staff.

[0016] The online monitoring device of this utility model monitors the real-time monitoring process of whether there is seawater leakage in the air cooler pipeline as follows: Since one end of the water inlet pipe 2 is connected to the condensate outlet on the air cooler, if seawater leaks from the cooling pipes in the air cooler, the seawater will mix with the condensate on the outer wall of the cooling pipes, causing the salinity of the condensate to increase. Therefore, the condensate is collected into the condensate collection box 1 through the water inlet pipe 2. If neither of the alarm mechanisms electrically connected to the first salinity sensor 4 and the second salinity sensor 5 alarms, it indicates that there is no seawater leakage in the cooling pipes of the air cooler. If the first salinity sensor 4 alarms but the second salinity sensor 5 does not alarm, a false alarm check should be performed. If both the first salinity sensor 4 and the second salinity sensor 5 alarm, it indicates that there is seawater leakage in the cooling pipes of the air cooler. If the first salinity sensor 4 does not alarm but the second salinity sensor 5 alarms, it may be due to the accumulation of salt deposited in the condensate collection box 1 and the accumulation of corroded metal slag in the pipeline that has not been cleaned in time, resulting in a false alarm. Continued observation is required. If the alarm situation remains unchanged after a period of time, the stopcock 10 needs to be opened to drain the remaining water at the bottom. When the level sensor 7 detects condensate in the condensate collection box 1, the drain pump 6 operates to discharge the condensate through the drain pipe 3.

[0017] The scope of protection of this utility model includes, but is not limited to, the above embodiments. The scope of protection is defined by the claims. Any substitutions, modifications, or improvements to this technology that are easily conceived by those skilled in the art shall fall within the scope of protection of this utility model.

Claims

1. An online monitoring device for leaks in the air-cooled pipeline of a ship's diesel engine, characterized in that... The device includes a condensate collection box, an inlet pipe, a drain pipe, a first salinity sensor, a second salinity sensor, and an alarm mechanism. The first and second salinity sensors are sealed and fixed to the side wall of the condensate collection box and electrically connected to the alarm mechanism. The first salinity sensor is located above the second salinity sensor. One end of the inlet pipe is connected to the condensate outlet on the air cooler, and the other end is inserted into the condensate collection box with its lower end lower than the second salinity sensor. The drain pipe is inserted into the upper part of the condensate collection box with its inserted end higher than the first salinity sensor. The lower end of the condensate collection box is provided with a drain port, and a stopcock is provided on the drain port.

2. The online monitoring device for leakage in the air cooler piping of a ship's diesel engine as described in claim 1, characterized in that: The first and second salinity sensors are screwed to the side wall of the condensate collection box and sealed by rubber gaskets.

3. The online monitoring device for leakage in the pipeline of a ship's diesel engine air cooler as described in claim 1, characterized in that: The first and second salinity sensors are conductivity sensors.

4. The online monitoring device for leakage in the air cooler piping of a ship's diesel engine as described in claim 1, characterized in that: The alarm mechanism is a buzzer and / or a flashing light.

5. The online monitoring device for leakage in the pipeline of a ship's diesel engine air cooler as described in claim 1, characterized in that: The alarm mechanism is a monitoring display screen.

6. The online monitoring device for leakage in the air cooler piping of a ship's diesel engine as described in claim 1, characterized in that: A drain pump is installed on the drain pipe, and a liquid level sensor is fixedly installed on the side wall of the condensate collection box. The liquid level sensor is positioned higher than the end of the drain pipe.

7. The online monitoring device for leakage in the air cooler piping of a ship's diesel engine as described in claim 1, characterized in that: A power supply assembly is installed on the outer wall of the condensate collection box, and a low-voltage alarm is connected to the power supply assembly.

Images