CN107631826A - A kind of ocean wave power monitoring device - Google Patents

Abstract

The invention discloses a marine wave force monitoring device, which belongs to the technical field of signal monitoring and includes a buoyancy column, a guide rod, a sealing head, a sleeve, a desiccant, a fixing bracket, a connecting clip, an elastic film, a strain gauge, a signal line, a /D converter, water storage tank, when seawater waves pass through the buoyancy column, the buoyancy column drives the guide rod to move up and down in the sliding chamber under the action of buoyancy, and then drives the elastic film connected at the bottom to expand and contract; the ocean wave force monitoring provided by the present invention The device outputs the strain signal of the elastic film in real time through the strain gauge on the elastic film, and converts the electrical signal into a digital signal and transmits it to the monitoring equipment through the A/D converter; and the ocean wave force monitoring device provided by the invention is easy to install and has a reliable structure Strong, high sensitivity, able to adapt to the complex marine environment; it can realize the monitoring of the ocean wave environment, and provide a good monitoring method for marine engineering construction.

Description

An ocean wave force monitoring device

technical field

The invention relates to the technical field of signal monitoring, in particular to an ocean wave force monitoring device.

Background technique

The load that ocean waves act on the jacket of an offshore platform is one of the important parameters for designing an offshore platform. In order to obtain the data of ocean wave load, people use various measurement methods to measure. At present, the measurement methods of ocean wave load are mainly divided into two types: pressure measurement and force measurement; among them, pressure measurement is to obtain the ocean wave load by re-integrating the pressure. , while force measurement is a direct measurement method.

The force measurement method commonly used to measure ocean wave loads is the balance force measurement method. In this balance force measurement method, first, the sensitive element detects the force of the ocean wave through the wave bearing element, and then transmits the detected data to Process the corresponding processing device, and finally output the required ocean wave load data. In the existing balance force measurement method, since the sensitive element that feels the wave load is designed as a whole with the wave-bearing element (such as a cylinder), in order to ensure that the sensitive element can fully feel the load of ocean waves, the wave-bearing element is not connected without support. However, the structure of the connecting parts between the wave-bearing elements in the force measuring structure of the balance and the legs of the jacket of the offshore platform is very complicated; in addition, the entire balance has been connected with the legs of the jacket of the offshore platform before it is actually used. The debugging and calibration before the measurement is carried out, so that it is easy to cause damage to the sensitive components of the balance during the installation and construction of the offshore platform, which will affect the reliability of the measurement parameters. Therefore, the existing balance force measuring method has defects such as complex structure of measuring parts, high equipment installation requirements, and low working reliability.

Contents of the invention

The present invention provides a marine wave force monitoring device, which aims to provide a marine wave force monitoring device with convenient installation, strong structural reliability, high sensitivity, and adaptability to complex use environments, so as to realize long-distance and reliable monitoring of ocean wave force. Avoid unnecessary economic losses and casualties caused by inaccurate monitoring of the wave force magnitude of ocean waves acting on the ocean platform.

The concrete technical scheme that the present invention provides is as follows:

The present invention provides an ocean wave force monitoring device, which includes a buoyancy column, a guide rod, a sealing head, a sleeve, a desiccant, a fixing bracket, an upper connecting clip, an elastic film, a strain gauge, and a signal line , A/D converter, water storage tank, guide pipe and lower connecting clip, wherein, the buoyancy column is semi-suspended on the sea surface, the guide rod is fixed on the lower end of the buoyancy column, and the sealing head is installed on The upper end of the sleeve, the guide rod passes through the sealing head and the desiccant, and the desiccant is stored in the drying chamber of the sleeve; the upper connecting clip is riveted to the lower section of the guide rod , the lower end of the upper connecting clip is riveted with the upper end of the elastic film, the lower end of the elastic film is riveted with the upper end of the lower connecting clip, and the lower end of the lower connecting clip is fixed at the bottom of the sleeve; The strain gauge is fixed on the outer surface of the elastic film, the A/D converter is arranged outside the sleeve, and the strain gauge and the A/D converter are electrically connected by the signal line ; One end of the fixing bracket is fixed on the outer surface of the sleeve, and the water storage tank and the outer surface of the sleeve are fixed by the guide tube.

Optionally, the guide rod includes a first cylindrical section, a second cylindrical section, and a third cylindrical section; wherein, the upper end of the first cylindrical section is fixed on the lower surface of the buoyancy column, and the second cylindrical section It is connected with the first cylindrical segment, the third cylindrical segment is connected with the second cylindrical segment, and the axis of the third cylindrical segment is parallel to the axis of the first cylindrical segment.

Optionally, the axis of the second cylindrical segment is perpendicular to the axis of the first cylindrical segment, and the axis of the third cylindrical segment is perpendicular to the axis of the second cylindrical segment.

Optionally, the angle between the axis of the second cylindrical segment and the horizontal plane is less than 90°, and the axis of the first cylindrical segment and the axis of the third cylindrical segment are not on a straight line.

Optionally, the angle between the axis of the second cylindrical segment and the horizontal plane is 0°.

Optionally, the sleeve includes a first cylinder section, a second cylinder section and a third cylinder section, wherein the first cylinder section is on the upper part of the second cylinder section, and the second cylinder section is on the upper part of the second cylinder section. The junction of the first barrel section and the third barrel section; the second barrel section is filled with the desiccant.

Optionally, the sealing head is fixed on the upper end of the first cylinder section by screw connection, the first cylindrical section passes through the sealing head, the second cylindrical section is located at the lower end of the sealing head and the The second cylinder section is located in the inner cavity of the first cylinder section, and the third cylinder section passes through the desiccant.

Optionally, the upper part of the upper connecting clip and the lower part of the third cylindrical section are riveted with a pin, and the lower end of the upper connecting clip is locked with a fastening screw to connect with the elastic film.

Optionally, the strain gauge is glued to the outer surface of the elastic film, the right side of the guide tube is connected to the outer surface of the first cylinder section, and the left side of the guide tube is connected to the storage tank. A water tank, wherein the inner cavity of the water storage tank, the inner cavity of the draft tube and the inner cavity of the first cylinder section communicate with each other.

Optionally, the upper surface of the desiccant is conical, the angle between the axis of the draft tube and the horizontal plane is greater than 30°, the cone angle of the upper surface of the desiccant and the angle of the draft tube The angle between the axis and the horizontal plane is equal.

The beneficial effects of the present invention are as follows:

An ocean wave force monitoring device provided in an embodiment of the present invention includes a buoyancy column, a guide rod, a sealing head, a sleeve, a desiccant, a fixing bracket, an upper connecting clip, an elastic film, a strain gauge, a signal line, and an A/D conversion The buoyancy column is semi-suspended on the sea surface, the guide rod is fixed on the lower end of the buoyancy column, the sealing head is installed on the upper end of the sleeve, and the guide rod passes through the sealing head and the desiccant , the desiccant is stored in the drying chamber of the sleeve; the upper connecting clip is riveted on the lower section of the guide rod, the lower end of the upper connecting clip is riveted with the upper end of the elastic film, the lower end of the elastic film is riveted with the upper end of the lower connecting clip, and the lower connecting clip is riveted The lower end is fixed on the bottom of the sleeve; the strain gauge is fixed on the outer surface of the elastic film, the A/D converter is set outside the sleeve, and the strain gauge and the A/D converter are electrically connected by wires; one end of the fixed bracket is fixed On the outer surface of the sleeve, a draft tube is used to fix the water storage tank and the outer surface of the sleeve. When the ocean wave hits the buoyancy column, the buoyancy column floats up and down under the force of the ocean wave, and then the buoyancy column drives the guide rod to move up and down, and the guide rod drives the elastic film connected to its lower part to undergo elastic deformation, and the strain gauge will monitor the strain change of the elastic film Real-time transmission to the A/D converter in the form of an electrical signal, the A/D converter converts the gained electrical signal into a digital signal for the collection personnel to collect, thereby obtaining real-time wave force conditions; and the ocean wave force monitoring device of the present invention , since the desiccant is stored in the drying chamber of the sleeve, and the water storage tank is connected with the outer surface of the sleeve by a guide tube, it can well prevent the water flow brought into the device from entering the lower end when the guide rod moves up and down. Strain gauges can effectively prevent the entry of water vapor; the first guide rod adopts an offset method to effectively prevent seawater from flowing along the guide rod to the elastic film. When the guide rod moves up and down, it enters from the contact surface between the guide rod 1 and the sealing head 3 The seawater in the first barrel section 401 can smoothly enter the inner cavity of the draft tube 14 through the tapered surface on the upper surface of the desiccant, and then flow into the water storage tank through the inner cavity of the draft tube 14 .

An ocean wave force monitoring device provided by an embodiment of the present invention has the advantages of convenient installation, strong structural reliability, high sensitivity, and adaptability to complex use environments. The inaccurate monitoring of the wave force on the platform causes unnecessary economic losses and casualties.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings that need to be used in the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present invention. For those skilled in the art, other drawings can also be obtained based on these drawings without creative effort.

Fig. 1 is a schematic cross-sectional structure diagram of an ocean wave force monitoring device according to an embodiment of the present invention;

Fig. 2 is a working diagram of an ocean wave force monitoring device according to an embodiment of the present invention.

detailed description

In order to make the purpose, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings. Apparently, the described embodiments are only some of the embodiments of the present invention, rather than all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

The terms "first", "second", "third", "fourth", "fifth", "sixth", "seventh" and "Eighth" and the like, if present, are used to distinguish similar items and are not necessarily used to describe a particular order or sequence. It is to be understood that the data so used are interchangeable under appropriate circumstances such that the embodiments of the invention described herein are, for example, capable of practice in sequences other than those illustrated or described herein.

The purpose is to provide a marine wave force monitoring device with convenient installation, strong structural reliability, high sensitivity, and adaptability to complex use environments. The embodiment of the present invention provides a marine wave force monitoring device including a buoyancy column, a guide rod, a sealing head, Sleeve, desiccant, fixing bracket, upper connecting clip, elastic film, strain gauge, signal line, A/D converter, diversion tube, water storage tank and lower connecting clip, wherein the buoyancy column is semi-suspended on the sea surface, The guide rod is fixed at the lower end of the buoyancy column, the sealing head is installed at the upper end of the sleeve, the guide rod passes through the sealing head and the desiccant, and the desiccant is stored in the drying chamber of the sleeve; the upper connecting clip is riveted on the lower section of the guide rod, and the upper connection The lower end of the clip is riveted with the upper end of the elastic film, the lower end of the elastic film is riveted with the upper end of the lower connecting clip, and the lower end of the lower connecting clip is fixed at the bottom of the sleeve; the strain gauge is fixed on the outer surface of the elastic film, and the A/D converter is set On the outside of the sleeve, the strain gage and the A/D converter are electrically connected by wires; one end of the fixing bracket is fixed on the outer surface of the sleeve, and the water storage tank and the outer surface of the sleeve are fixed by a guide tube. When the ocean wave hits the buoyancy column, the buoyancy column floats up and down under the force of the ocean wave, and then the buoyancy column drives the guide rod to move up and down, and the guide rod drives the elastic film connected to its lower part to undergo elastic deformation, and the strain gauge will monitor the strain change of the elastic film Real-time transmission to the A/D converter in the form of an electrical signal, the A/D converter converts the gained electrical signal into a digital signal for the collection personnel to collect, thereby obtaining real-time wave force conditions; and the ocean wave force monitoring device of the present invention , since the desiccant is stored in the drying chamber of the sleeve, and the water storage tank is connected with the outer surface of the sleeve by a guide tube, it can well prevent the water flow brought into the device from entering the lower end when the guide rod moves up and down. Strain gauges can effectively prevent the entry of water vapor; the first guide rod adopts an offset method to effectively prevent seawater from flowing along the guide rod to the elastic film. When the guide rod moves up and down, it enters from the contact surface between the guide rod 1 and the sealing head 3 The seawater in the first barrel section 401 can smoothly enter the inner cavity of the draft tube 14 through the tapered surface on the upper surface of the desiccant, and then flow into the water storage tank through the inner cavity of the draft tube 14 . An ocean wave force monitoring device provided by an embodiment of the present invention has the advantages of convenient installation, strong structural reliability, high sensitivity, and adaptability to complex use environments. The inaccurate monitoring of the wave force on the platform causes unnecessary economic losses and casualties.

A marine wave force monitoring device according to an embodiment of the present invention will be described in detail below with reference to FIG. 1 and FIG. 2 .

Referring to Fig. 1, a marine wave force monitoring device 100 provided by an embodiment of the present invention includes a buoyancy column 1, a guide rod 2, a sealing head 3, a sleeve 4, a desiccant 6, a fixing bracket 5, and an upper connecting clip 7 , elastic film 8, strain gauge 9, signal line 12, A/D converter 10, water storage tank 11, diversion tube 14, and lower connecting clip 13, wherein, buoyancy column 1 is semi-suspended on the sea surface, guide rod 2 Fixed on the lower end of the buoyancy column 1, the sealing head 3 is installed on the upper end of the sleeve 4, the guide rod 2 passes through the sealing head 3 and the desiccant 6, and the desiccant 6 is stored in the drying chamber of the sleeve 4; the upper connecting clip 7 is riveted on the The lower section of the guide rod 2, the lower end of the upper connecting clip 7 is riveted with the upper end of the elastic film 8, the lower end of the elastic film 8 is riveted with the upper end of the lower connecting clip 13, and the lower end of the lower connecting clip 13 is fixed on the bottom of the sleeve 4; the strain gauge 9 is fixed on the outer surface of the elastic film 8, the A/D converter 10 is arranged outside the sleeve 4, and the strain gauge 9 and the A/D converter 10 are electrically connected by a signal line 12; one end of the fixing bracket 5 is fixed on The outer surface of the sleeve 4 is fixed by a draft tube 14 between the water storage tank 11 and the outer surface of the sleeve 4 .

Wherein, the buoyancy column 1 is made of light materials, and the buoyancy column 1 can be suspended or floated in seawater, that is, the buoyancy column 1 can float up and down according to the sea level or the size of ocean waves. The embodiment of the present invention does not specifically limit the specific material and structural shape of the buoyancy column 1 . Exemplarily, the buoyancy column 1 can be a cylindrical float made of polyethylene. The embodiment of the present invention does not specifically limit the specific way in which the guide rod 2 is fixed to the lower end of the buoyancy column 1. For example, the guide rod 2 can be welded to the lower end of the buoyancy column 1 or the guide rod 2 can be fixed to the buoyancy column by threaded connection. 1 lower end.

Further, the guide rod 2 includes a first cylindrical section 201, a second cylindrical section 202, and a third cylindrical section 203; wherein, the upper end of the first cylindrical section 201 is fixed on the lower surface of the buoyancy column 1, and the second cylindrical section 202 is connected to the third cylindrical section 203. One cylindrical section 201 is connected, the third cylindrical section 203 is connected with the second cylindrical section 202 , and the axis of the third cylindrical section 203 is parallel to the axis of the first cylindrical section 201 . Exemplarily, the axis of the third cylindrical section 203 is vertically arranged with the first cylindrical section 201, wherein the axis of the third cylindrical section 203 is vertically arranged with the first cylindrical section 201, which can facilitate the buoyancy column 1 to drive the guide rod 2 up and down move.

1, the angle between the axis of the second cylindrical segment 202 and the horizontal plane is 0°, that is, the second cylindrical segment 202 is arranged horizontally, and the axis of the second cylindrical segment 202 is perpendicular to the axis of the first cylindrical segment 201 , the axis of the third cylindrical segment 203 is perpendicular to the axis of the second cylindrical segment 202 .

Exemplarily, the angle between the axis of the second cylindrical section 202 and the horizontal plane is less than 90°, and the axis of the first cylindrical section 201 and the axis of the third cylindrical section 203 are not on a straight line. The third cylindrical section 203 is parallel to the first cylindrical section 201, and the axis of the first cylindrical section 201 and the axis of the third cylindrical section 203 are not on a straight line, which can ensure that the water flow brought in by the guide rod in the process of moving up and down does not follow the guide rod. The rod flows to the elastic film. Among them, the second cylindrical section 202 cooperates with the sealing head 3 and the desiccant 6 to limit the movement range of the guide rod 1 in the inner cavity of the sleeve 4, which can effectively prevent the elastic film 8 from being damaged due to the excessive displacement of the guide rod 1. was pulled off.

Further, as shown in FIG. 1 , the sleeve 4 includes a first barrel section 401, a second barrel section 402 and a third barrel section 403, wherein the first barrel section 401 is on the upper part of the second barrel section 402, and the second barrel section The section 402 is at the junction of the first barrel section 401 and the third barrel section 403 ; the inner cavity of the second barrel section 402 is filled with desiccant 6 .

Further, as shown in FIG. 1 , the sealing head 3 is fixed on the upper end of the first barrel section 401 by threaded connection, the first cylindrical section 201 passes through the sealing head 3, the second cylindrical section 202 is located at the lower end of the sealing head 3 and the second The cylindrical section 202 is located in the inner cavity of the first barrel section 401 , and the third cylindrical section 203 passes through the desiccant 6 .

For example, the upper part of the upper connecting clip 7 and the lower part of the third cylindrical section 203 are riveted with a pin, and the lower end of the upper connecting clip 7 is locked with a fastening screw for connecting the elastic film 8 .

Further, as shown in FIG. 1 , the strain gauge 9 is glued to the outer surface of the elastic film 8 , that is, the strain gauge 9 is attached to the upper surface of the elastic film 8 , and the strain gauge 9 can be deformed with the deformation of the elastic film. The right side of the draft tube 14 is connected to the outer surface of the first barrel section 401, and the left side of the draft tube 14 is connected to the water storage tank 11, wherein the inner cavity of the water storage tank, the inner cavity of the draft tube and the first barrel section The inner cavities communicate with each other.

Illustratively, the upper surface of the desiccant 6 is conical, and the included angle between the axis of the draft tube 14 and the horizontal plane is greater than 30°, and the cone angle of the upper surface of the desiccant 6 and the axis of the draft tube 14 and the horizontal angles are equal. Setting the included angle between the axis of the draft tube 14 and the horizontal plane to be greater than 30° and the cone angle of the upper surface of the desiccant 6 to be greater than 30° can ensure that the guide rod 1 and the sealing The seawater that enters the first cylinder section 401 through the contact surface between the heads 3 can smoothly enter the inner cavity of the draft tube 14 through the tapered surface on the upper surface of the desiccant, and then flow to the water storage tank through the inner cavity of the draft tube 14 Inside.

Referring to Fig. 2, the ocean wave force monitoring device 100 of the embodiment of the present invention is fixed on the work platform column 200 during use, wherein the buoyancy column 1 of the ocean wave force monitoring device 100 of the embodiment of the present invention is located on the sea surface 300, when the ocean wave hits the buoyancy column 1, the buoyancy column 1 floats up and down under the action of the ocean wave force, and then drives the guide rod 2 to move up and down, and the guide rod 2 drives the elastic deformation of the lower elastic film 8, and the strain gauge 9 converts the elastic film The strain changes are transmitted to the A/D converter 10 in real time in the form of electrical signals, and the A/D converter 10 converts the obtained electrical signals into digital signals for collection personnel to obtain real-time wave force conditions.

An ocean wave force monitoring device provided in an embodiment of the present invention includes a buoyancy column, a guide rod, a sealing head, a sleeve, a desiccant, a fixing bracket, an upper connecting clip, an elastic film, a strain gauge, a signal line, and an A/D conversion The buoyancy column is semi-suspended on the sea surface, the guide rod is fixed on the lower end of the buoyancy column, the sealing head is installed on the upper end of the sleeve, and the guide rod passes through the sealing head and the desiccant , the desiccant is stored in the drying chamber of the sleeve; the upper connecting clip is riveted on the lower section of the guide rod, the lower end of the upper connecting clip is riveted with the upper end of the elastic film, the lower end of the elastic film is riveted with the upper end of the lower connecting clip, and the lower connecting clip is riveted The lower end is fixed on the bottom of the sleeve; the strain gauge is fixed on the outer surface of the elastic film, the A/D converter is set outside the sleeve, and the strain gauge and the A/D converter are electrically connected by wires; one end of the fixed bracket is fixed On the outer surface of the sleeve, a draft tube is used to fix the water storage tank and the outer surface of the sleeve. When the ocean wave hits the buoyancy column, the buoyancy column floats up and down under the force of the ocean wave, and then the buoyancy column drives the guide rod to move up and down, and the guide rod drives the elastic film connected to its lower part to undergo elastic deformation, and the strain gauge will monitor the strain change of the elastic film Real-time transmission to the A/D converter in the form of an electrical signal, the A/D converter converts the gained electrical signal into a digital signal for the collection personnel to collect, thereby obtaining real-time wave force conditions; and the ocean wave force monitoring device of the present invention , since the desiccant is stored in the drying chamber of the sleeve, and the water storage tank is connected with the outer surface of the sleeve by a guide tube, it can well prevent the water flow brought into the device from entering the lower end when the guide rod moves up and down. Strain gauges can effectively prevent the entry of water vapor; the first guide rod adopts an offset method to effectively prevent seawater from flowing along the guide rod to the elastic film. When the guide rod moves up and down, it enters from the contact surface between the guide rod 1 and the sealing head 3 The seawater in the first barrel section 401 can smoothly enter the inner cavity of the draft tube 14 through the tapered surface on the upper surface of the desiccant, and then flow into the water storage tank through the inner cavity of the draft tube 14 . An ocean wave force monitoring device provided by an embodiment of the present invention has the advantages of convenient installation, strong structural reliability, high sensitivity, and adaptability to complex use environments. The inaccurate monitoring of the wave force on the platform causes unnecessary economic losses and casualties.

Apparently, those skilled in the art can make various changes and modifications to the embodiments of the present invention without departing from the spirit and scope of the embodiments of the present invention. In this way, if the modifications and variations of the embodiments of the present invention fall within the scope of the claims of the present invention and equivalent technologies, the present invention also intends to include these modifications and variations.

Claims (10)

1. A marine wave force monitoring device, characterized in that, the marine wave force monitoring device comprises a buoyancy column, a guide rod, a sealing head, a sleeve, a desiccant, a fixed bracket, an upper connecting clip, an elastic film, a strain gauge, Signal line, A/D converter, water storage tank, diversion pipe and lower connection clip, wherein, the buoyancy column is semi-suspended on the sea surface, the guide rod is fixed at the lower end of the buoyancy column, and the sealing head Installed on the upper end of the sleeve, the guide rod passes through the sealing head and the desiccant, and the desiccant is stored in the drying cavity of the sleeve; the upper connecting clip is riveted on the guide rod The lower section of the upper connecting clip, the lower end of the upper connecting clip is riveted with the upper end of the elastic film, the lower end of the elastic film is riveted with the upper end of the lower connecting clip, and the lower end of the lower connecting clip is fixed on the bottom of the sleeve ; The strain gauge is fixed on the outer surface of the elastic film, the A/D converter is arranged outside the sleeve, and the signal line is used between the strain gauge and the A/D converter Electrical connection; one end of the fixing bracket is fixed on the outer surface of the sleeve, and the water storage tank is fixed with the outer surface of the sleeve by the guide tube. 2. The ocean wave force monitoring device according to claim 1, wherein the guide rod comprises a first cylindrical section, a second cylindrical section, and a third cylindrical section; wherein, the upper end of the first cylindrical section is fixed On the lower surface of the buoyancy column, the second cylindrical section is connected to the first cylindrical section, the third cylindrical section is connected to the second cylindrical section, and the axis of the third cylindrical section is connected to the The axes of the first cylindrical section are parallel. 3. The ocean wave force monitoring device according to claim 2, wherein the axis of the second cylindrical section is perpendicular to the axis of the first cylindrical section, and the axis of the third cylindrical section is perpendicular to the axis of the first cylindrical section. The axes of the two cylindrical segments are perpendicular. 4. The ocean wave force monitoring device according to claim 2, wherein the angle between the axis of the second cylindrical section and the horizontal plane is less than 90°, and the axis of the first cylindrical section and the first cylindrical section The axes of the three cylindrical segments are not in a straight line. 5. The ocean wave force monitoring device according to claim 4, characterized in that, the angle between the axis of the second cylindrical section and the horizontal plane is 0°. 6. The ocean wave force monitoring device according to claim 1, wherein the sleeve comprises a first barrel section, a second barrel section and a third barrel section, wherein the first barrel section is placed between the The upper part of the second barrel section, the second barrel section is at the junction of the first barrel section and the third barrel section; the second barrel section is filled with the desiccant. 7. The ocean wave force monitoring device according to claim 6, wherein the sealing head is fixed on the upper end of the first cylindrical section by threaded connection, and the first cylindrical section passes through the sealing head, The second cylinder section is located at the lower end of the sealing head and the second cylinder section is located in the inner cavity of the first cylinder section, and the third cylinder section passes through the desiccant. 8. The ocean wave force monitoring device according to claim 7, characterized in that, the upper part of the upper connecting clip and the lower part of the third cylindrical section are riveted with pins, and the lower end of the upper connecting clip is fastened The screw is used for locking and connecting the elastic film. 9. The ocean wave force monitoring device according to claim 8, wherein the strain gauge is glued to the outer surface of the elastic film, and the right side of the draft tube is connected to the first cylinder section. On the outer surface, the left side of the draft tube is connected to the water storage tank, wherein the inner cavity of the water storage tank, the inner cavity of the draft tube and the inner cavity of the first cylinder section communicate with each other. 10. The ocean wave force monitoring device according to claim 9, wherein the upper surface of the desiccant is conical, and the angle between the axis of the draft tube and the horizontal plane is greater than 30°, the The cone angle of the upper surface of the desiccant is equal to the included angle between the axis of the draft tube and the horizontal plane.