Inverted floating ball liquid level monitoring device and method for watertight cabin of ship

Abstract

The invention discloses an inverted floating ball liquid level monitoring device for a watertight cabin of a ship, the device comprises a protection module and a detection module, the detection module is arranged in the protection module, the protection module comprises a protection sleeve and a sleeve seat plate, the protection sleeve is inserted into the watertight cabin from the bottom of the watertight cabin, and the sleeve seat plate is arranged in the protection sleeve. The sleeve seat plate is installed at the bottom of the watertight cabin, the detection module comprises a supporting column, a floating ball, a guide rod and a detection module, the supporting column and the guide rod are arranged in the protective sleeve, the floating ball is installed at one end of the supporting rod in the watertight cabin and slides on the supporting rod, one end of the guide rod is connected with the upper end of the supporting column, and the other end of the guide rod is connected with the detection module. The other end of the guide rod is connected with the sleeve seat plate, and the detection module is installed at one end of the supporting rod at the bottom of the watertight cabin. Liquid level detection is carried out through the inverted floating ball, the stuffing box and the detection cable are prevented from being immersed in liquid, the water tightness of floating ball liquid level monitoring is improved, and the service life of the stuffing box is prolonged.

Description

Technical Field

[0001] The present invention belongs to the technical field of shipbuilding, and particularly relates to an inverted floating ball liquid level monitoring device and method for a ship watertight compartment. Background Art

[0002] Traditional liquid level monitoring and alarm floating balls adopt side-mounted or top-vertical-mounted methods. When the liquid level in the compartment rises, the sphere of the floating ball floats up, driving the contacts to actuate, achieving the purpose of outputting an alarm. However, when the top and side of a certain watertight compartment are both liquid compartments and only the bottom is a dry area compartment, a floating ball needs to be installed in the compartment for liquid level monitoring and alarm. However, neither the side-mounted nor the top-vertical-mounted floating ball is ideal. The electrical component part and cable of the floating ball will be immersed in the liquid, affecting the watertight effect and making it difficult to carry out maintenance and other work. Summary of the Invention

[0003] The purpose of the present invention is to overcome the deficiencies existing in the above-mentioned prior art, and provide an inverted floating ball liquid level monitoring device and method for a ship watertight compartment. The present invention performs liquid level detection through an inverted floating ball, avoiding the stuffing box and detection cables from being immersed in the liquid, improving the watertightness of the floating ball liquid level monitoring, and extending the service life of the stuffing box.

[0004] In order to achieve the above-mentioned invention purpose, the technical solution provided by the present invention patent is as follows:

[0005] An inverted floating ball liquid level monitoring device for a ship watertight compartment, the device includes a protection module and a detection module. The detection module is arranged inside the protection module. The protection module includes a protection sleeve and a sleeve seat plate. The protection sleeve is inserted into the watertight compartment from the bottom of the watertight compartment, and the sleeve seat plate is installed at the bottom of the watertight compartment. The detection module includes a support column, a floating ball, a guide rod, and a detection module. The support column and the guide rod are respectively arranged inside the protection sleeve. The floating ball is installed at one end of a support rod in the watertight compartment, and the floating ball slides on the support rod. One end of the guide rod is connected to the upper end of the support column, and the other end of the guide rod is connected to the sleeve seat plate. The detection module is installed at one end of the support rod at the bottom of the watertight compartment.

[0006] Further, the protection sleeve is installed in the middle of the sleeve seat plate, and the protection sleeve is fixedly connected to the sleeve seat plate. A flange is arranged at the bottom of the sleeve seat plate.

[0007] Further, the flange is fixedly connected to the sleeve seat plate by bolts. One end of the support column is inserted into the protection sleeve from the bottom of the watertight compartment, and the other end of the support column extends out from the bottom of the watertight compartment and is fixedly connected to the hull structure through a shell cover. A detection module is arranged on the shell cover, and a stuffing box is arranged on one side of the detection module.

[0008] Further, the upper end of the guide rod is fixedly connected to the inner wall of the protective sleeve, and the lower end of the guide rod is fixedly connected to the flange.

[0009] Further, upper limit rings and lower limit rings are respectively arranged at the upper end of the support column. A floating ball is arranged on the support column between the upper limit ring and the lower limit ring. The upper end of the guide rod is electrically connected to the upper limit ring.

[0010] An inverted floating ball liquid level monitoring method for a ship watertight compartment, the method specifically includes the following steps:

[0011] S1. Prepare an inverted floating ball liquid level monitoring device for a ship watertight compartment. The device includes a protection module and a detection module. The detection module is arranged inside the protection module. The protection module includes a protective sleeve and a sleeve seat plate. The protective sleeve is inserted into the watertight compartment from the bottom of the watertight compartment. The sleeve seat plate is installed at the bottom of the watertight compartment. The detection module includes a support column, a floating ball, a guide rod and a detection module. The support column and the guide rod are respectively arranged inside the protective sleeve. The floating ball is installed at one end of a support rod in the watertight compartment. The floating ball slides on the support rod. One end of the guide rod is connected to the upper end of the support column, and the other end of the guide rod is connected to the sleeve seat plate. The detection module is installed at one end of the support rod at the bottom of the watertight compartment;

[0012] S2. Set the heights of the upper limit ring and the lower limit ring and the distance between the upper limit ring and the lower limit ring on the support column in the watertight compartment according to the position of the liquid level in the monitored watertight compartment;

[0013] S3. After the floating ball on the support column and the guide rod are installed, when the liquid level in the watertight compartment changes, the floating ball floats up and down with the change of the liquid level. When the floating ball moves upward and contacts the upper limit ring, the upper limit ring transmits an alarm signal to the detection module through the guide rod. The detection module receives the alarm signal and converts the alarm signal into a normally closed signal and outputs it to the ship detection and alarm system;

[0014] S4. When the floating ball moves downward and contacts the lower limit ring, the upper and lower limit rings transmit an alarm signal to the detection module through the guide rod. The detection module receives the alarm signal and converts the alarm signal into a normally open signal and outputs it to the ship detection and alarm system;

[0015] Further, the detection module and the stuffing box are arranged in the dry area at the bottom of the watertight compartment.

[0016] Based on the above technical solutions, the inverted floating ball liquid level monitoring device and method for a ship watertight compartment of the present invention have achieved the following technical advantages through practical application:

[0017] 1. The inverted float liquid level monitoring device for ship watertight compartments of the present invention uses an inverted float to detect the liquid level, avoiding the stuffing box and the detection cable being immersed in the liquid, improving the watertightness of the float liquid level monitoring and extending the service life of the stuffing box. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 FIG. is a structural diagram of the liquid level monitoring device in the inverted float liquid level monitoring device for ship watertight compartments of the present invention.

[0019] Figure 2 FIG. is a schematic diagram of the use of the liquid level monitoring device in the inverted float liquid level monitoring device for ship watertight compartments of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0020] To make the objectives, technical solutions and advantages of the present invention clearer and more understandable, the present invention will be described below through specific examples shown in the drawings. However, it should be understood that these descriptions are only exemplary and are not intended to limit the scope of the present invention. In addition, in the following description, the descriptions of well-known structures and technologies are omitted to avoid unnecessarily confusing the concepts of the present invention.

[0021] As shown in Figure 1 and Figure 2 the present invention belongs to an inverted float liquid level monitoring device for ship watertight compartments. The device includes a protection module and a detection module. The detection module is arranged inside the protection module. The protection module includes a protection sleeve 7 and a sleeve seat plate 6. The protection sleeve 7 is inserted into the watertight compartment from the bottom of the watertight compartment, and the sleeve seat plate 6 is installed at the bottom of the watertight compartment. The detection module includes a support column, a float 10, a guide rod 9 and a detection module 3. The support column and the guide rod 9 are respectively arranged inside the protection sleeve 7. The float 10 is installed at one end of the support rod in the watertight compartment, and the float 10 slides on the support rod. One end of the guide rod 9 is connected to the upper end of the support column, and the other end of the guide rod 9 is connected to the sleeve seat plate 6. The detection module 3 is installed at one end of the support rod at the bottom of the watertight compartment.

[0022] The liquid level is detected by the inverted float 10, avoiding the stuffing box 2 and the detection cable being immersed in the liquid, improving the watertightness of the float 10 liquid level monitoring and extending the service life of the stuffing box 2.

[0023] The protection sleeve 7 is installed in the middle of the sleeve seat plate 6, and the protection sleeve 7 is fixedly connected to the sleeve seat plate 6. A flange 5 is arranged at the bottom of the sleeve seat plate 6.

[0024] The flange 5 and the sleeve seat plate 6 are fixedly connected by bolts. One end of the support column is inserted into the protective sleeve 7 from the bottom of the watertight compartment, and the other end of the support column extends out from the bottom of the watertight compartment and is fixedly connected to the hull structure through the shell cover 1. A detection module 3 is arranged on the shell cover 1, and a stuffing box 2 is arranged on one side of the detection module 3.

[0025] The detection module 3, the stuffing box 2 and the detection cable are arranged in the dry area of the watertight compartment, avoiding the corrosion of the cable by the liquid, improving the service life of the cable, and at the same time, the detection module 3 arranged in the dry area improves the safety of the ship monitoring system.

[0026] The upper end of the guide rod 9 is fixedly connected to the inner wall of the protective sleeve 7, and the lower end of the guide rod 9 is fixedly connected to the flange 5.

[0027] Upper limit rings 81 and lower limit rings 8 are respectively arranged at the upper end of the support column. A floating ball 10 is arranged on the support column between the upper limit ring 81 and the lower limit ring 8. The upper end of the guide rod 9 is electrically connected to the upper limit ring 81.

[0028] An inverted floating ball liquid level monitoring method for a ship watertight compartment, which specifically includes the following steps:

[0029] S1. Prepare an inverted floating ball liquid level monitoring device for a ship watertight compartment. The device includes a protection module and a detection module. The detection module is arranged inside the protection module. The protection module includes a protective sleeve 7 and a sleeve seat plate 6. The protective sleeve 7 is inserted into the watertight compartment from the bottom of the watertight compartment, and the sleeve seat plate 6 is installed at the bottom of the watertight compartment. The detection module includes a support column, a floating ball 10, a guide rod 9 and a detection module 3. The support column and the guide rod 9 are respectively arranged inside the protective sleeve 7. The floating ball 10 is installed at one end of the support rod in the watertight compartment. The floating ball 10 slides on the support rod. One end of the guide rod 9 is connected to the upper end of the support column, and the other end of the guide rod 9 is connected to the sleeve seat plate 6. The detection module 3 is installed at one end of the support rod at the bottom of the watertight compartment;

[0030] S2. Set the heights of the upper limit ring 81 and the lower limit ring 8 and the distance between the upper limit ring 81 and the lower limit ring 8 on the support column in the watertight compartment according to the liquid level position monitored in the watertight compartment;

[0031] S3. After the floating ball 10 on the support column and the guide rod 9 are installed, when the liquid level in the watertight compartment changes, the floating ball 10 floats up and down with the change of the liquid level. When the floating ball 10 moves upward and contacts the upper limit ring 81, the upper limit ring 81 transmits the alarm signal to the detection module through the guide rod 9. The detection module receives the alarm signal and converts the alarm signal into a normally closed signal and outputs it to the ship detection and alarm system;

[0032] S4. When the floating ball 10 moves downward and contacts the lower limit ring 8, the lower limit ring 8 transmits the alarm signal to the detection module through the guide rod 9. The detection module receives the alarm signal and converts it into a normally open signal for output to the ship detection and alarm system;

[0033] The detection module 3 and the stuffing box 2 are arranged in the dry area at the bottom of the watertight compartment.

[0034] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them; although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that it is still possible to modify the specific implementation manners of the invention or perform equivalent replacements for some technical features; without departing from the spirit of the technical solutions of the present invention, they should all be covered within the scope of the technical solutions claimed by the present invention.

Claims

1. An inverted float liquid level monitoring device for a ship's watertight compartment, characterized in that: The device comprises a protection module and a detection module. The protection module is provided with a detection module. The protection module comprises a protection sleeve and a sleeve seat plate. The protection sleeve is inserted into the watertight compartment from the bottom of the watertight compartment. The sleeve seat plate is installed at the bottom of the watertight compartment. The detection module comprises a support column, a float, a guide rod and a detection module. The support column and the guide rod are respectively arranged inside the protection sleeve. The float is installed at one end of the support rod in the watertight compartment. The float slides on the support rod. One end of the guide rod is connected to the upper end of the support column, and the other end of the guide rod is connected to the sleeve seat plate. The detection module is installed at one end of the support rod at the bottom of the watertight compartment.

2. The inverted float liquid level monitoring device for a ship's watertight compartment according to claim 1, characterized in that: The protective sleeve is installed in the middle of the sleeve seat plate, the protective sleeve is fixedly connected to the sleeve seat plate, and a flange is arranged at the bottom of the sleeve seat plate.

3. The inverted float liquid level monitoring device for a ship's watertight compartment according to claim 2, characterized in that: The flange is fixed to the sleeve seat plate by bolts, one end of the support column is inserted into the protective sleeve from the bottom of the watertight compartment, and the other end of the support column extends from the bottom of the watertight compartment and is fixed to the hull structure through the shell cover, and a detection module is arranged on the shell cover, and a stuffing box is arranged on one side of the detection module.

4. The inverted float liquid level monitoring device for a watertight compartment of a ship according to claim 2, characterized in that: The upper end of the guide rod is connected and fixed to the inner wall of the protective sleeve, and the lower end of the guide rod is connected and fixed to the flange.

5. The inverted float liquid level monitoring device for a watertight compartment of a ship according to claim 2, characterized in that: An upper limit ring and a lower limit ring are respectively arranged on the upper end of the support column, a floating ball is arranged on the support column between the upper limit ring and the lower limit ring, and the upper end of the guide rod is electrically connected to the upper limit ring.

6. An inverted float liquid level monitoring method for a ship's watertight compartment, characterized in that: The method specifically comprises the following steps: S1, prepare an inverted float liquid level monitoring device for a ship's watertight compartment, the device comprising a protection module and a detection module, the protection module is provided with a detection module, the protection module comprises a protection sleeve and a sleeve seat plate, the protection sleeve is inserted into the watertight compartment from the bottom of the watertight compartment, the sleeve seat plate is installed at the bottom of the watertight compartment, the detection module comprises a support column, a float, a guide rod and a detection module, the support column and the guide rod are respectively arranged inside the protection sleeve, the float is installed at one end of the support rod in the watertight compartment, the float slides on the support rod, one end of the guide rod is connected to the upper end of the support column, the other end of the guide rod is connected to the sleeve seat plate, and the detection module is installed at one end of the support rod at the bottom of the watertight compartment; S2, according to the monitored liquid level position in the watertight compartment, set the height of the upper limit ring and the lower limit ring and the distance between the upper limit ring and the lower limit ring on the support column in the watertight compartment; S3, after the float and guide rod on the support column are installed, when the liquid level in the watertight compartment changes, the float floats up and down with the change of the liquid level. When the float moves upward and contacts the upper limit ring, the upper limit ring transmits the alarm signal to the detection module through the guide rod. The detection module receives the alarm signal, converts the alarm signal into a normally closed signal and outputs it to the ship detection alarm system; S4, when the float moves downward and contacts the lower limit ring, the lower limit ring transmits the alarm signal to the detection module through the guide rod. The detection module receives the alarm signal, converts the alarm signal into a normally open signal and outputs it to the ship detection alarm system.

7. The inverted float liquid level monitoring method for a ship's watertight compartment according to claim 6, characterized in that: The detection module and stuffing box are arranged in the dry area at the bottom of the watertight compartment.

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