Marine equipment anti-corrosion device and marine engine

Abstract

The utility model discloses a marine equipment anti-corrosion device and a marine engine, and relates to the technical field of anti-corrosion devices. The marine equipment anti-corrosion device comprises a screw plug, a sensor and a zinc bar, a mounting hole I is formed in the screw plug, and a sensor is detachably mounted in the mounting hole I; the sensor comprises a detection end and a signal line, the detection end is arranged on the outer side of the screw plug along the axis of the detection end, and the signal line penetrates through the first mounting hole and is in signal connection with an external monitoring alarm device. A second mounting hole is formed in the zinc bar, the second mounting hole and the first mounting hole are coaxially formed, the sensor is detachably connected to the second mounting hole, the detection end of the sensor is located in the second mounting hole, a first sealing gasket is mounted between the zinc bar and the screw plug, and the first sealing gasket is arranged on the outer side of the sensor in a sleeving mode. According to the application, a user can be prompted to replace the zinc bar, automatic alarm is realized, the disassembly frequency is reduced, the labor cost is reduced, and the reliability of marine equipment is improved. Meanwhile, the utility model discloses a marine engine.

Description

Technical Field

[0001] This utility model relates to the field of anti-corrosion device technology, and in particular to an anti-corrosion device for marine equipment and a marine engine. Background Technology

[0002] Intercoolers and heat exchangers are crucial components of the engine cooling system, ensuring the normal operating water and intake air temperatures of the engine. On ships operating at sea, the engine's external circulating water is seawater. Due to the corrosive nature of seawater, the cooling core assembly, end plates, and end covers of the intercooler and heat exchanger are prone to corrosion damage. To protect the intercooler and heat exchanger, zinc rods are used as anodes, and an electrochemical protection method is employed to prevent seawater corrosion.

[0003] The zinc rods in the zinc rod plug assembly will corrode during use. Once they are completely corroded, they will cause corrosion of the intercooler and heat exchanger. Currently, the corrosion status of the zinc rods can only be observed manually through periodic disassembly. However, due to factors such as engine operating conditions, salinity of different seawater areas, and operator skill levels, it is impossible to accurately determine the corrosion status of the zinc rods. Often, major malfunctions such as intercooler and heat exchanger corrosion occur because the zinc rods are not replaced in time after corrosion. Utility Model Content

[0004] In view of this, the technical problem to be solved by this utility model is to provide a marine equipment anti-corrosion device and a marine engine that can prompt the user to replace zinc bars, realize automatic alarm, reduce disassembly frequency, reduce labor costs, and improve the reliability of marine equipment.

[0005] To solve the above-mentioned technical problems, the technical solution of this utility model is as follows:

[0006] A corrosion protection device for marine equipment includes a screw plug, a sensor, and a zinc rod;

[0007] The screw plug has a mounting hole, and the sensor is detachably mounted in the mounting hole.

[0008] The sensor includes a detection end and a signal line. The detection end is disposed on the outside of the screw plug along its axis, and the signal line passes through the mounting hole and is connected to an external monitoring and alarm device.

[0009] The zinc rod has a second mounting hole, which is coaxial with the first mounting hole. The sensor is detachably connected to the second mounting hole, and the detection end is located inside the second mounting hole. A sealing gasket is installed between the zinc rod and the screw plug, and the sealing gasket is fitted on the outside of the sensor.

[0010] Preferably, the screw plug includes a nut and a screw integrally formed therewith, and a relief groove is provided between the nut and the screw.

[0011] Preferably, the mounting hole is formed on the screw and extends axially toward the nut, and the length of the mounting hole is greater than the length of the screw.

[0012] Preferably, the tool relief groove is a V-shaped tool relief groove, and a sealing gasket is fitted on the outer side of the tool relief groove.

[0013] Preferably, the diameter of the zinc rod is not greater than the diameter of the screw, and the diameter of the sealing gasket is smaller than the diameter of the zinc rod.

[0014] Preferably, the sensor is threadedly connected to both the first mounting hole and the second mounting hole.

[0015] Preferably, the space between the sensor and the mounting hole is filled with thread sealant.

[0016] Preferably, there is a gap between the detection end and the bottom of the second mounting hole.

[0017] Preferably, the sensor is a pressure sensor or a chloride ion sensor; the monitoring and alarm device is an ECU, an audible and visual alarm, or a pressure alarm.

[0018] A marine engine, comprising an engine body and an intercooler and a heat exchanger connected thereto; characterized in that at least one of the aforementioned marine equipment anti-corrosion devices is installed on the intercooler and / or the heat exchanger.

[0019] After adopting the above technical solution, the beneficial effects of this utility model are:

[0020] This application discloses a marine equipment corrosion protection device for a marine engine. The marine equipment corrosion protection device includes a screw plug, a sensor, and a zinc rod. The screw plug has a mounting hole 1, in which a coaxially arranged sensor is detachably installed. The sensor includes a detection end and a signal line. The detection end is located on the outside of the screw plug along its axis, and the signal line passes through the mounting hole 1 to connect to an external monitoring and alarm device. The zinc rod has a mounting hole 2, which is coaxially arranged with the mounting hole 1. The sensor is detachably connected to the mounting hole 2, and the detection end is located inside the mounting hole 2. A sealing gasket 1 is installed between the zinc rod and the screw plug, and the sealing gasket is set on the outside of the sensor. By installing a sensor with its detection end located inside mounting hole two, when the zinc rod is corroded and protrudes from the detection end, the detection end can contact the seawater inside the equipment and emit an electrical signal. The electrical signal is transmitted to the monitoring and alarm device via a signal line and is analyzed by the device. Thus, the monitoring and alarm device prompts the user to replace the zinc rod or the entire anti-corrosion device in a timely manner, avoiding the traditional maintenance method of manually disassembling and observing periodically. This allows for timely monitoring of the corrosion status of the zinc rod, reduces the frequency of disassembly, lowers labor costs, and improves the reliability of marine equipment. Attached Figure Description

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0022] Figure 1 This is a schematic diagram of the structure of the anti-corrosion device for marine equipment according to an embodiment of this utility model;

[0023] In the picture:

[0024] 1. Plug; 11. Mounting hole one; 12. Nut; 13. Threaded rod; 14. Relief groove;

[0025] 2. Sensor; 21. Detection end; 22. Signal line;

[0026] 3. Zinc rod; 31. Mounting hole two;

[0027] 4. Sealing gasket one;

[0028] 5. Sealing gasket two. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0030] Example 1

[0031] like Figure 1As shown, this utility model discloses a corrosion protection device for marine equipment, including a screw plug 1, a sensor 2, and a zinc rod 3. The screw plug 1 has a mounting hole 11, in which the sensor 2 is detachably mounted and coaxially arranged. The sensor 2 includes a detection end 21 and a signal line 22. The detection end 21 is located on the outside of the screw plug 1 along its axis, and the signal line 22 passes through the mounting hole 11 and is connected to an external monitoring and alarm device (not shown in the figure). The zinc rod 3 has a mounting hole 31, which is coaxially arranged with the mounting hole 11. The sensor 2 is detachably connected to the mounting hole 31, with the detection end 21 located inside the mounting hole 31. A sealing gasket 4 is installed between the zinc rod 3 and the screw plug 1, and the sealing gasket 4 is fitted onto the outside of the sensor 2.

[0032] By installing sensor 2, whose detection end 21 is located inside mounting hole 31, when zinc rod 3 is corroded and the detection end 21 is exposed, the detection end 21 can contact the seawater inside the equipment and emit an electrical signal. The electrical signal is transmitted to the monitoring and alarm device via signal line 22 and is analyzed by the device. Thus, the monitoring and alarm device prompts the user to replace zinc rod 3 or the entire anti-corrosion device in time, avoiding the traditional maintenance method of manual periodic disassembly and observation. It can promptly grasp the corrosion status of zinc rod 3, reduce the frequency of disassembly, reduce labor costs, and improve the reliability of marine equipment.

[0033] In this application, the screw plug 1 includes a nut 12 and a screw 13 integrally formed therewith, and a relief groove 14 is provided between the nut 12 and the screw 13. Preferably, a mounting hole 11 is formed on the screw 13 and extends axially toward the nut 12. The length of the mounting hole 11 is greater than the length of the screw 13. A limiting step is provided in the mounting hole 11, which is adapted to the sensor 2 and is used to limit the distance between the bottom of the mounting hole 11 and the sensor 2, thereby avoiding the signal line 22. When the sensor 2 is installed in the mounting hole 11, it can ensure a good installation depth between the two, prevent the sensor 2 from falling out of the mounting hole 11, and ensure that this application can be used normally.

[0034] Preferably, the relief groove 14 is a V-shaped relief groove, and a sealing gasket 2 5 is fitted on the outer side of the relief groove. The bottom diameter of the conical body at the connection between the V-shaped relief groove and the nut 12 is smaller than the outer diameter of the thread on the screw 13. After the sealing gasket 2 5 is fitted into the screw 13, it contacts the bottom surface of the nut 12. The inner hole of the sealing gasket 2 5 is constrained by the conical body at the connection between the relief groove 14 and the nut 12, which can automatically align with the mounting screw hole on the marine equipment, preventing seawater leakage after the anti-corrosion device of this application is installed on the intercooler or heat exchanger, thus improving stability.

[0035] The diameter of zinc rod 3 is no greater than the diameter of screw 13, which facilitates the insertion of zinc rod 3 into the interior of marine equipment by screw 13, making installation easier; the diameter of sealing gasket 4 is smaller than the diameter of zinc rod 3, so the presence of sealing gasket 4 will not affect the installation of zinc rod 3, thus meeting the installation requirements.

[0036] In this application, the sensor 2 is threadedly connected to both mounting hole 11 and mounting hole 31. Alternatively, the sensor 2 can be connected to either mounting hole 11 or mounting hole 31 via an interference fit, snap-fit, or plug-in connection. When a threaded connection is used, thread sealant is filled between the sensor 2 and mounting hole 11 to enhance the sealing effect and prevent seawater leakage.

[0037] Preferably, there is a gap between the detection end 21 and the bottom of the mounting hole 31. This prevents the detection end 21 from touching the bottom of the mounting hole 31 after it extends into it, thus avoiding detection errors and ensuring detection accuracy. The sensor 2 is a pressure sensor or a chloride ion sensor; the monitoring and alarm device includes an ECU, an audible and visual alarm, and a pressure alarm.

[0038] When a pressure sensor is used as sensor 2, and the zinc rod 3 is completely corroded, the detection end 21 comes into contact with the external circulating seawater and receives the pressure signal of the external circulating seawater. The pressure signal is transmitted to the monitoring and alarm device through the signal line 22, which can automatically alarm and remind you to replace the zinc rod 3.

[0039] Example 2

[0040] This utility model discloses a marine engine, including an engine body and an intercooler and a heat exchanger connected thereto; at least one marine equipment anti-corrosion device as described in the above embodiments is installed on the intercooler and / or heat exchanger. The structures of the engine body, intercooler, and heat exchanger are well-known in this technical field and will not be described in detail here. When installing the marine equipment anti-corrosion device, simply screw the plug 1 onto the end cap of the intercooler and heat exchanger, allowing the zinc rod 3 to extend inside and contact the seawater; it should be noted that only one marine equipment anti-corrosion device should be installed on the same end cap.

[0041] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A corrosion protection device for marine equipment, characterized in that, Includes screw plugs, sensors, and zinc rods; The screw plug has a mounting hole, and the sensor is detachably mounted in the mounting hole. The sensor includes a detection end and a signal line. The detection end is disposed on the outside of the screw plug along its axis, and the signal line passes through the mounting hole and is connected to an external monitoring and alarm device. The zinc rod has a second mounting hole, which is coaxial with the first mounting hole. The sensor is detachably connected to the second mounting hole, and the detection end is located inside the second mounting hole. A sealing gasket is installed between the zinc rod and the screw plug, and the sealing gasket is fitted on the outside of the sensor.

2. The marine equipment corrosion protection device as described in claim 1, characterized in that, The screw plug includes a nut and a screw rod integrally formed therewith, and a relief groove is provided between the nut and the screw rod.

3. The marine equipment corrosion protection device as described in claim 2, characterized in that, The mounting hole is formed on the screw and extends axially toward the nut, and the length of the mounting hole is greater than the length of the screw.

4. The marine equipment corrosion protection device as described in claim 2, characterized in that, The tool relief groove is a V-shaped tool relief groove, and a sealing gasket is fitted on the outer side of the tool relief groove.

5. The marine equipment corrosion protection device as described in claim 2, characterized in that, The diameter of the zinc rod is not greater than the diameter of the screw, and the diameter of the sealing gasket is smaller than the diameter of the zinc rod.

6. The marine equipment corrosion protection device as described in claim 1, characterized in that, The sensor is threadedly connected to both mounting hole one and mounting hole two.

7. The marine equipment corrosion protection device as described in claim 6, characterized in that, The space between the sensor and the mounting hole is filled with thread sealant.

8. The marine equipment corrosion protection device as described in claim 6, characterized in that, There is a gap between the detection end and the bottom of the second mounting hole.

9. The marine equipment corrosion protection device as described in claim 1, characterized in that, The sensor is a pressure sensor or a chloride ion sensor; the monitoring and alarm device is an ECU, an audible and visual alarm, or a pressure alarm.

10. A marine engine, comprising an engine body and an intercooler and a heat exchanger connected thereto; characterized in that, The intercooler and / or the heat exchanger are equipped with at least one marine equipment anti-corrosion device as described in any one of claims 1 to 9.

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