An alarm device for offshore power generation system

Abstract

The present invention relates to the field of alarm technology, and specifically to an alarm device for an offshore power generation system, comprising a detection module; the detection module comprises a detector and a plurality of adhesives; the detector comprises a base, a connecting frame, an impact tube, an impact head, a piezoelectric generator, a ceramic sealing shell and a first communication module, the base is provided with an inverted frustum-shaped ventilation hole which is larger at the top and smaller at the bottom, and the impact tube is connected to the base through the connecting frame; the piezoelectric generator and the first communication module are electrically connected; the impact head is arranged in the impact tube; the piezoelectric generator is connected to the impact head; the ceramic sealing shell sealing sleeve is arranged in the impact tube and wraps the impact head therein; the present invention meets the alarm needs of different equipment by setting adhesives with different melting zones and installing detectors according to different alarm temperatures; the sealing is ensured by the ceramic sealing shell; through the arrangement of the piezoelectric generator and the first communication module, the impact causes the piezoelectric generator to be squeezed and activates the first communication module to send a signal.

Description

Technical Field

[0001] The present invention relates to the field of alarm technology, and in particular to an alarm device for an offshore power generation system. Background Art

[0002] Offshore wind turbines are devices that convert offshore wind energy into electrical energy. Traditional offshore wind turbines are typically equipped with additional fire alarm systems to prevent fires. These systems contain various alarms, but existing fire alarm systems have the following problems:

[0003] 1. In order to ensure the heat dissipation of the generator, the ventilation system will continuously introduce external air into the generator. However, when introducing external air, water vapor will inevitably be brought in. The ventilation system itself cannot effectively remove water vapor. The water vapor contains salt mist, which will corrode various alarms, especially those that need to be connected to the outside world to be detected (such as carbon monoxide detectors, carbon dioxide detectors), causing the alarm to fail or cause a false alarm.

[0004] 2. Since the generator set also includes various equipment, there are many types and quantities of equipment. Each type requires a different alarm, and the alarm must be connected through various lines. The lines are scattered and messy, which makes the fire hazard even greater.

[0005] Therefore, there is a need for an alarm device for an offshore power generation system that requires only a small amount of wiring and avoids salt spray corrosion. Summary of the Invention

[0006] The technical problem to be solved by the present invention is to provide an alarm device for an offshore power generation system which requires only a small amount of wiring and avoids salt spray corrosion.

[0007] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0008] An alarm device for an offshore power generation system, the offshore power generation system comprising a bilge and various working equipment arranged on the bilge, wherein each of the working equipment comprises a mounting surface unobstructed from the bilge;

[0009] The alarm device includes a detection module and a signal module;

[0010] The detection module includes multiple detectors and multiple adhesives with different melting zones; the detector includes a base, a connecting frame, an impact tube, an impact head, a piezoelectric generator, a ceramic sealing shell and a first communication module; the base is provided with an inverted frustum-shaped ventilation hole with a larger upper portion and a smaller lower portion; the bottom of the impact tube is connected to the base through a connecting frame and the impact tube and the base are coaxially arranged; a working hole is provided on the end of the impact tube away from the base, the piezoelectric generator and the first communication module are arranged in the working hole and are electrically connected thereto; a part of the impact head is arranged in the working hole, and the other part extends out of the working hole; one end of the piezoelectric generator is connected to the bottom of the working hole, and the other end is connected to the impact head; the ceramic sealing shell sealing sleeve is provided on the impact tube and wraps the impact head therein;

[0011] The signal module includes a power cord and a sealed protective shell. The sealed protective shell contains an electrically connected second communication module and an alarm module, and the second communication module is communicatively connected to the first communication module. The power cord is electrically connected to the offshore power generation system to provide power to the second communication module and the alarm module.

[0012] Before installing the alarm device, the alarm temperatures of various working equipment are obtained, and adhesives with melting ranges corresponding to the alarm temperatures of different working equipment are selected. The base of the detector is attached upward to the installation surface using the different adhesives.

[0013] Preferably, the testing and recording actions are performed before the base of the detector is attached upward to the mounting surface using different adhesives;

[0014] The inspection behavior includes: after the detector removes the ceramic sealing shell, pressing the impact head and then sending a signal to the second communication module after powering by the first communication module;

[0015] The recording behavior includes: the alarm module verifies the source of the signal and records the working equipment corresponding to the detector.

[0016] Preferably, the detector further comprises a plurality of counterweight blocks, and the counterweight blocks are ring-shaped;

[0017] The inspection behavior also includes: after removing the ceramic sealing shell of the detector, manually pressing the impact head to send a signal to the second communication module after powering through the first communication module, and the alarm module detecting whether the signal is normal. If so, continue; if not, replace the detector;

[0018] Place a normal detector on the mounting surface and then let go to determine whether the first communication module sends a signal to the second communication module when the detector falls to the ground. If so, the test is complete. Otherwise, place a counterweight on the outer periphery of the impact tube and set it toward one end of the impact head. Let go again to determine whether the first communication module sends a signal to the second communication module when the detector falls to the ground. If so, the test is complete. Otherwise, continue to add counterweights until a signal is sent.

[0019] After the inspection is completed, replace the ceramic sealing shell.

[0020] Preferably, the counterweight is a lead block.

[0021] Preferably, the outer circumference of the impact tube is provided with a threaded outer groove, and the counterweight block is provided with a first threaded inner groove that cooperates with the threaded outer groove. The counterweight block is mounted on the outer circumference of the impact tube through the cooperation of the first threaded inner groove and the threaded outer groove.

[0022] Preferably, a second inner thread groove cooperating with the outer thread groove is provided on the inner wall of one end of the ceramic sealing shell facing the base; the ceramic sealing shell realizes that the sealing sleeve is arranged on the impact tube and wraps the impact head therein through the cooperation of the second inner thread groove and the outer thread groove.

[0023] Preferably, the impact tube is made of plastic.

[0024] Preferably, a vent hole is provided on the bottom side wall of the working hole, and a one-way valve is provided in the vent hole.

[0025] Preferably, the plurality of adhesives are distinguished by different colors.

[0026] Preferably, the adhesive includes an ethylene-vinyl acetate copolymer adhesive having a melting range of 70-90°C, a polyamide adhesive having a melting range of 120-140°C, or a polypropylene adhesive having a melting range of 160-180°C.

[0027] The beneficial effects of the present invention are as follows: by setting adhesives with different melting ranges, detectors can be installed according to the alarm temperatures of different working equipment to meet the alarm needs of different equipment; the ceramic sealing shell can ensure the sealing of the impact head and the inside of the impact tube to avoid internal corrosion and failure caused by salt mist; through the setting of the piezoelectric generator and the first communication module, the piezoelectric generator can be squeezed by free fall impact to activate the first communication module, without the need for additional external circuits to supply power, and without the need for batteries to store energy for internal functions. The fall is one-time, the direct energy supply cost is lower, the structure is simpler, and the lack of lines and batteries can further reduce the risk and cost of fire; when the working equipment reaches the alarm temperature, the adhesive melts, and the base of the detector is attached to the installation surface with the detector facing upward, and the detector is under the action of gravity The downward fall allows the airflow to pass through the truncated cone (originally an inverted truncated cone, but the detector becomes a truncated cone when it is inverted) ventilation hole, which plays a role in correcting the airflow, so that the detector can keep its impact head downward. When it hits the ground, the ceramic sealing shell shatters and under the action of inertia, the piezoelectric generator generates electricity to power the first communication module and then sends a signal to the second communication module. After receiving the signal, the second communication module alarms and / or alarms the outside world through the alarm module; in this solution, only the signal module has a power cord, which greatly reduces the fire risk caused by the alarm device itself, and the sealed protective shell can ensure that the internal structure will not be corroded by salt spray, greatly improving the service life; and it is easy to modify the existing offshore generator set, has great universality, does not require re-setting the circuit and structure, and is easy to install. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a schematic diagram of the use of an alarm device for an offshore power generation system according to a specific embodiment of the present invention;

[0029] Figure 2 A schematic structural diagram of a detector for an alarm device of an offshore power generation system according to a specific embodiment of the present invention;

[0030] Figure 3 for Figure 2 Exploded diagram;

[0031] Figure 4 A schematic diagram of a descending airflow of a detector of an alarm device for an offshore power generation system according to a specific embodiment of the present invention;

[0032] Figure 5 A schematic diagram of a ceramic sealing shell of a detector of an alarm device for an offshore power generation system according to a specific embodiment of the present invention at the moment of impact;

[0033] Figure 6A schematic diagram of the retraction of the impact head after the ceramic sealing shell of the detector of the alarm device of the offshore power generation system according to a specific embodiment of the present invention is broken by impact;

[0034] Explanation of reference numbers: 1. Bottom; 2. Working equipment; 3. Mounting surface; 4. Detection module; 41. Base; 42. Connecting frame; 43. Impact tube; 44. Impact head; 45. Piezoelectric generator; 46. Ceramic sealing shell; 47. Ventilation hole; 48. Counterweight; 49. Air vent; 5. Signal module; 51. Power cord; 52. Sealed protective shell; 53. Second communication module; 54. Alarm module. DETAILED DESCRIPTION

[0035] To illustrate the technical content, achieved objectives and effects of the present invention in detail, the following description is given in conjunction with the embodiments and accompanying drawings.

[0036] Please refer to Figures 1 to 6 , an alarm device for an offshore power generation system, the offshore power generation system comprising a bilge 1 and various working equipment 2 arranged on the bilge 1, each of the working equipment 2 comprising a mounting surface 3 unobstructed from the bilge 1;

[0037] The alarm device includes a detection module 4 and a signal module 5;

[0038] The detection module 4 includes multiple detectors and multiple adhesives with different melting zones; the detector includes a base 41, a connecting frame 42, an impact tube 43, an impact head 44, a piezoelectric generator 45, a ceramic sealing shell 46 and a first communication module, the base 41 is provided with an inverted frustum-shaped ventilation hole 47 with a larger upper part and a smaller lower part, the bottom of the impact tube 43 is connected to the base 41 through the connecting frame 42, and the impact tube 43 is coaxially arranged with the base 41; a working hole is provided on the end of the impact tube 43 away from the base 41, the piezoelectric generator 45 and the first communication module are arranged in the working hole and are electrically connected thereto; a part of the impact head 44 is arranged in the working hole, and the other part extends out of the working hole; one end of the piezoelectric generator 45 is connected to the bottom of the working hole, and the other end is connected to the impact head 44; the ceramic sealing shell 46 is sealed and sleeved on the impact tube 43 and wraps the impact head 44 therein;

[0039] The signal module 5 includes a power cord 51 and a sealed protective shell 52. The sealed protective shell 52 contains an electrically connected second communication module 53 and an alarm module 54. The second communication module 53 is in communication with the first communication module. The power cord 51 is electrically connected to the offshore power generation system to provide power to the second communication module 53 and the alarm module 54.

[0040] Before installing the alarm device, the alarm temperatures of various working equipment 2 are obtained, and adhesives with melting ranges corresponding to the alarm temperatures of different working equipment 2 are selected. The base 41 of the detector is adhered upward to the mounting surface 3 using the different adhesives.

[0041] As can be seen from the above description, by setting adhesives with different melting ranges, the detector can be installed according to the alarm temperature of different working equipment 2 to meet the alarm needs of different equipment; the ceramic sealing shell 46 can ensure the sealing of the impact head 44 and the inside of the impact tube 43 to avoid internal corrosion and failure caused by salt mist; through the setting of the piezoelectric generator 45 and the first communication module, the piezoelectric generator 45 can be squeezed by the free fall impact to activate the first communication module, without the need for additional circuit arrangement for power supply, further reducing the risk of fire; when the working equipment 2 reaches the alarm temperature, the adhesive melts, and the base 41 of the detector is attached to the mounting surface 3 with the detector facing up, and the detector falls under the action of gravity, causing the airflow to pass through the truncated cone (originally an inverted truncated cone, but the detector becomes inverted when it is installed). (It is in the shape of a truncated cone) The ventilation hole 47 allows air to pass through and plays the role of correcting the airflow, so that the detector can keep the impact head 44 facing downward. When hitting the ground, the ceramic sealing shell 46 shatters and under the action of inertia, the piezoelectric generator 45 generates electricity to power the first communication module and then sends a signal to the second communication module 53. After receiving the signal, the second communication module 53 alarms and / or alarms the outside world through the alarm module 54; in this solution, only the signal module 5 has a power cord 51, which greatly reduces the fire risk caused by the alarm device itself, and the sealed protective shell 52 can ensure that the internal structure will not be corroded by salt spray, greatly improving the service life; and it is easy to modify the existing offshore generator set, has great universality, does not need to reset the circuit and structure, and is easy to install.

[0042] Furthermore, the base 41 of the detector is attached upward to the mounting surface 3 by using different adhesives to perform the inspection and recording actions;

[0043] The inspection behavior includes: the detector removes the ceramic sealing shell 46 and presses the impact head 44 to send a signal to the second communication module 53 after powering it through the first communication module;

[0044] The recording behavior includes: the alarm module 54 verifies the source of the signal and records the working device 2 corresponding to the detector.

[0045] From the above description, it can be seen that by checking and recording behaviors, it can be ensured that each detector is feasible, and by recording, when a fire occurs, it can be determined which working equipment 2 has caught fire, so that preparations can be made in advance.

[0046] Furthermore, the detector further includes a plurality of counterweight blocks 48, and the counterweight blocks 48 are ring-shaped;

[0047] The inspection behavior also includes: after the detector removes the ceramic sealing shell 46, manually pressing the impact head 44 and sending a signal to the second communication module 53 after power is supplied through the first communication module, and the alarm module 54 detects whether the signal is normal. If so, continue; if not, replace the detector;

[0048] Place a normal detector on the mounting surface 3 and then release the hand to determine whether the first communication module sends a signal to the second communication module 53 when the detector falls to the ground. If so, the test is complete. Otherwise, place the counterweight 48 on the outer periphery of the impact tube 43 and toward one end of the impact head 44. Release the hand again to determine whether the first communication module sends a signal to the second communication module 53 when the detector falls to the ground. If so, the test is complete. Otherwise, continue to add the counterweight 48 until a signal is sent.

[0049] After the inspection is completed, the ceramic sealing shell 46 is re-closed.

[0050] From the above description, it can be seen that by adding the counterweight block 48, the problem of not being able to trigger the alarm due to insufficient vertical distance can be avoided; at the same time, the counterweight block 48 is mounted on the outer periphery of the impact tube 43, so that the potential energy of the impact tube 43 is greater during impact, making it easier to activate the piezoelectric generator 45.

[0051] Furthermore, the counterweight 48 is a lead block.

[0052] As can be seen from the above description, the lead block has good corrosion resistance and high density, which can make the center of gravity of the impact head 44 point downward during the falling process, thereby ensuring the impact effect.

[0053] Furthermore, the outer periphery of the impact tube 43 is provided with a threaded outer groove, and the counterweight block 48 is provided with a first threaded inner groove that cooperates with the threaded outer groove. The counterweight block 48 is sleeved on the outer periphery of the impact tube 43 through the cooperation of the first threaded inner groove and the threaded outer groove.

[0054] From the above description, it can be seen that through the provision of the first inner thread groove and the outer thread groove, the counterweight block 48 can be sleeved on the impact tube 43 like a nut sleeved on a bolt, with a simple structure and easy operation.

[0055] Furthermore, a second inner thread groove cooperating with the outer thread groove is provided on the inner wall of one end of the ceramic sealing shell 46 facing the base 41; the ceramic sealing shell 46 realizes a sealing sleeve arranged on the impact tube 43 and wraps the impact head 44 therein through the cooperation of the second inner thread groove and the outer thread groove.

[0056] From the above description, it can be seen that by combining two structures with one threaded outer groove, fixation can be achieved while reducing the complexity of the structure.

[0057] Furthermore, the impact tube 43 is made of plastic.

[0058] From the above description, it can be seen that the impact tube 43 made of plastic material can achieve a better sealing effect due to local slight deformation when matched with the first thread inner groove and the second thread inner groove due to the easy deformation of plastic.

[0059] Furthermore, a vent hole 49 is provided on the bottom side wall of the working hole, and a one-way valve is provided in the vent hole 49 .

[0060] From the above description, it can be seen that by setting the vent 49 and the one-way valve, the one-way valve can prevent external water vapor from flowing in, and the vent 49 can reduce the pressure when the impact head 44 enters the impact tube 43. At the same time, it can also play a better piezoelectric effect during free fall impact, avoiding the detector from failing due to high internal air pressure.

[0061] Furthermore, the multiple adhesives are distinguished by different colors.

[0062] From the above description, it can be seen that differentiating by different colors can improve installation efficiency.

[0063] Furthermore, the adhesive includes an ethylene-vinyl acetate copolymer adhesive having a melting range of 70-90°C, a polyamide adhesive having a melting range of 120-140°C, and a polypropylene adhesive having a melting range of 160-180°C. Example 1

[0064] An alarm device for an offshore power generation system, the offshore power generation system comprising a bilge 1 and various working equipment 2 arranged on the bilge 1, wherein each of the working equipment 2 comprises a mounting surface 3 which is unobstructed from the bilge 1;

[0065] The alarm device includes a detection module 4 and a signal module 5;

[0066] The detection module 4 includes multiple detectors and multiple adhesives with different melting zones; the detector includes a base 41, a connecting frame 42, an impact tube 43, an impact head 44, a piezoelectric generator 45 (a zinc oxide generator, a piezoelectric ceramic generator, or a polyvinylidene fluoride generator can be selected according to actual conditions), a ceramic sealing shell 46 and a first communication module. The base 41 is provided with an inverted frustum-shaped ventilation hole 47 with a larger upper portion and a smaller lower portion. The bottom of the impact tube 43 is connected to the base 41 through the connecting frame 42, and the impact tube 43 is coaxially arranged with the base 41; a working hole is provided on the end of the impact tube 43 away from the base 41, and the piezoelectric generator 45 and the first communication module are arranged in the working hole and are electrically connected thereto; a portion of the impact head 44 is arranged in the working hole, and the other portion extends out of the working hole; one end of the piezoelectric generator 45 is connected to the bottom of the working hole, and the other end is connected to the impact head 44; the ceramic sealing shell 46 is sealed and sleeved on the impact tube 43 and wraps the impact head 44 therein;

[0067] The signal module 5 includes a power cord 51 and a sealed protective shell 52. The sealed protective shell 52 contains an electrically connected second communication module 53 and an alarm module 54. The second communication module 53 is in communication with the first communication module. The power cord 51 is electrically connected to the offshore power generation system to provide power to the second communication module 53 and the alarm module 54.

[0068] Before installing the alarm device, the alarm temperatures of various working equipment 2 are obtained, and adhesives with melting ranges corresponding to the alarm temperatures of different working equipment 2 are selected. The base 41 of the detector is adhered upward to the mounting surface 3 using the different adhesives.

[0069] Before attaching the base 41 of the detector upward to the mounting surface 3 using different adhesives, the inspection and recording actions are performed;

[0070] The inspection behavior includes: the detector removes the ceramic sealing shell 46 and presses the impact head 44 to send a signal to the second communication module 53 after powering it through the first communication module;

[0071] The recording behavior includes: the alarm module 54 verifies the source of the signal and records the working device 2 corresponding to the detector.

[0072] The detector further includes a plurality of counterweights 48, and the counterweights 48 are ring-shaped;

[0073] The inspection behavior also includes: after the detector removes the ceramic sealing shell 46, manually pressing the impact head 44 and sending a signal to the second communication module 53 after power is supplied through the first communication module, and the alarm module 54 detects whether the signal is normal. If so, continue; if not, replace the detector;

[0074] Place a normal detector on the mounting surface 3 and then release the hand to determine whether the first communication module sends a signal to the second communication module 53 when the detector falls to the ground. If so, the test is complete. Otherwise, place the counterweight 48 on the outer periphery of the impact tube 43 and toward one end of the impact head 44. Release the hand again to determine whether the first communication module sends a signal to the second communication module 53 when the detector falls to the ground. If so, the test is complete. Otherwise, continue to add the counterweight 48 until a signal is sent.

[0075] After the inspection is completed, the ceramic sealing shell 46 is re-closed.

[0076] The counterweight 48 is a lead block.

[0077] The impact tube 43 is provided with a threaded outer groove on its outer periphery, and the counterweight block 48 is provided with a first threaded inner groove that matches the threaded outer groove. The counterweight block 48 is sleeved on the outer periphery of the impact tube 43 through the matching of the first threaded inner groove and the threaded outer groove.

[0078] The inner wall of the ceramic sealing shell 46 at one end facing the base 41 is provided with a second inner thread groove that cooperates with the outer thread groove; the ceramic sealing shell 46 is sealed by the cooperation of the second inner thread groove and the outer thread groove to be arranged on the impact tube 43 and wrap the impact head 44 therein.

[0079] The impact tube 43 is made of plastic.

[0080] A vent hole 49 is provided on the bottom side wall of the working hole, and a one-way valve is provided in the vent hole 49 .

[0081] The various adhesives are distinguished by different colors.

[0082] The adhesive includes an ethylene-vinyl acetate copolymer adhesive with a melting range of 70-90°C, a polyamide adhesive with a melting range of 120-140°C, and a polypropylene adhesive with a melting range of 160-180°C.

[0083] In fact, the melting range of adhesives can be adjusted through modification. For example, the melting range of polyamide can be adjusted from 60 to 200°C, lower or higher, by modifying the adhesive. This technology is already available. Example 2

[0084] An alarm device for an offshore power generation system is disclosed, as discussed previously with reference to Example 1 and omitted for brevity. The adhesive may also be bonded using a low-melting-point alloy, such as a tin-bismuth alloy. By adjusting the composition ratio of the tin-bismuth alloy, the tin-bismuth alloy can have different compositions and melting points ranging from 47°C to 200°C. Furthermore, the melting point of a certain formula of tin-bismuth alloy is fixed, allowing for more accurate alarms.

[0085] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent transformations made using the contents of the present invention's description and drawings, or directly or indirectly applied in related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. An alarm device for an offshore power generation system, the offshore power generation system comprising a bilge and various working equipment arranged on the bilge, characterized in that: Each of the aforementioned working equipment includes a mounting surface that is unobstructed from the bilge; The alarm device includes a detection module and a signal module; The detection module includes multiple detectors and multiple adhesives with different melting zones; the detector includes a base, a connecting frame, an impact tube, an impact head, a piezoelectric generator, a ceramic sealing shell and a first communication module; the base is provided with an inverted frustum-shaped ventilation hole with a larger upper portion and a smaller lower portion; the bottom of the impact tube is connected to the base through a connecting frame and the impact tube and the base are coaxially arranged; a working hole is provided on the end of the impact tube away from the base, the piezoelectric generator and the first communication module are arranged in the working hole and are electrically connected thereto; a part of the impact head is arranged in the working hole, and the other part extends out of the working hole; one end of the piezoelectric generator is connected to the bottom of the working hole, and the other end is connected to the impact head; the ceramic sealing shell sealing sleeve is provided on the impact tube and wraps the impact head therein; The signal module includes a power cord and a sealed protective shell. The sealed protective shell contains an electrically connected second communication module and an alarm module, and the second communication module is communicatively connected to the first communication module. The power cord is electrically connected to the offshore power generation system to provide power to the second communication module and the alarm module. Before installing the alarm device, the alarm temperatures of various working equipment are obtained, and adhesives with melting ranges corresponding to the alarm temperatures of different working equipment are selected. The base of the detector is attached upward to the installation surface using the different adhesives.

2. The alarm device for an offshore power generation system according to claim 1, characterized in that: Performing inspection and recording actions before attaching the base of the detector upward to the mounting surface using different adhesives; The inspection behavior includes: after the detector removes the ceramic sealing shell, pressing the impact head and then sending a signal to the second communication module after powering by the first communication module; The recording behavior includes: the alarm module verifies the source of the signal and records the working equipment corresponding to the detector.

3. The alarm device for an offshore power generation system according to claim 2, characterized in that: The detector further comprises a plurality of counterweight blocks, wherein the counterweight blocks are ring-shaped; The inspection behavior also includes: after removing the ceramic sealing shell of the detector, manually pressing the impact head to send a signal to the second communication module after powering through the first communication module, and the alarm module detecting whether the signal is normal. If so, continue; if not, replace the detector; Place a normal detector on the mounting surface and then let go to determine whether the first communication module sends a signal to the second communication module when the detector falls to the ground. If so, the test is complete. Otherwise, place a counterweight on the outer periphery of the impact tube and set it toward one end of the impact head. Let go again to determine whether the first communication module sends a signal to the second communication module when the detector falls to the ground. If so, the test is complete. Otherwise, continue to add counterweights until a signal is sent. After the inspection is completed, replace the ceramic sealing shell.

4. The alarm device for an offshore power generation system according to claim 3, characterized in that: The counterweight is a lead block.

5. The alarm device for an offshore power generation system according to claim 3, characterized in that: The outer circumference of the impact tube is provided with a threaded outer groove, and the counterweight block is provided with a first threaded inner groove that matches the threaded outer groove. The counterweight block is sleeved on the outer circumference of the impact tube through the matching of the first threaded inner groove and the threaded outer groove.

6. The alarm device for an offshore power generation system according to claim 5, characterized in that: A second inner thread groove cooperating with the outer thread groove is provided on the inner wall of one end of the ceramic sealing shell facing the base; the ceramic sealing shell realizes that the sealing sleeve is arranged on the impact tube and wraps the impact head therein through the cooperation of the second inner thread groove and the outer thread groove.

7. The alarm device for an offshore power generation system according to claim 6, characterized in that: The impact tube is made of plastic.

8. The alarm device for an offshore power generation system according to claim 1, characterized in that: A vent hole is provided on the bottom side wall of the working hole, and a one-way valve is provided in the vent hole.

9. The alarm device for an offshore power generation system according to claim 1, characterized in that: The various adhesives are distinguished by different colors.

10. The alarm device for an offshore power generation system according to claim 1, characterized in that: The adhesive includes an ethylene-vinyl acetate copolymer adhesive with a melting range of 70-90°C, a polyamide adhesive with a melting range of 120-140°C, and a polypropylene adhesive with a melting range of 160-180°C.

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