Towing resistance measuring device

Abstract

The utility model provides a towing resistance measuring device. The towing resistance measuring device comprises a pressure sensor, a pressure sensor fixing support, a sheath, a force bearing rope, a head connector, a tail connector and a tail diversion force bearing interface, a pressure sensor and a pressure sensor fixing support for installing the pressure sensor are arranged in the middle in the sheath, and a head connector and a tail connector are installed at the two ends of the sheath respectively; the pressure sensor fixing support comprises a first fixing support and a second fixing support which are in non-rigid connection and are connected through a force bearing rope penetrating through the two sides, and a set of guide pins are arranged and used for guiding and positioning the supports on the two sides, and it is guaranteed that the pressure sensor is stressed in the forward direction. The towing resistance measuring device is integrated in a section of tubular sheath, the front end and the rear end are provided with the head and tail connectors, the head end can be directly connected with a towing cable, the tail end can be directly connected with underwater towing equipment, a towing resistance measuring value can be read in real time, and the towing resistance of the underwater towing equipment under various working conditions can be monitored.

Description

Technical Field

[0001] The utility model relates to the field of towing state monitoring of underwater towing equipment, in particular to a towing resistance measuring device. Background Art

[0002] With the continuous development of application fields such as marine environmental exploration and oil and gas pipeline maintenance, the demand for underwater detection is increasing. As one of the main detection methods, underwater towed equipment plays a key role in various fields.

[0003] For underwater towing equipment, towing resistance is one of the important factors that cannot be ignored. It is related to the safety and reliability of the entire towing equipment and is often used for towing status monitoring. In addition, the actual towing resistance data is an extremely important design basis for the forward design of underwater towing equipment. Compared with the calculation results based on fluid simulation results or theoretical empirical formulas, the real towing resistance can better reflect the complex underwater force conditions and can effectively avoid the calculation errors of towing resistance caused by differences in parameter selection and the structural shape of the towing body. At the same time, it can also verify the rationality of fluid simulation data and empirical formulas.

[0004] Some of the existing towing resistance measurement equipment use standard tension meters to convert the measured towing cable tension into a towing resistance value. The towing resistance measurement results are affected by the towing mother ship's bounce, roller spacing, angle error, compression degree, conversion error, etc., and there is a certain loss in the measurement accuracy of the towing resistance value; the other part uses a standard dynamometer to directly measure the towing resistance of the towed body, but this form is a fixed structure and cannot realize the towing resistance measurement of the towed body in the recovery and deployment state.

[0005] Therefore, it is necessary to provide a towing resistance measuring device which is applicable to most underwater towing equipment, has high measurement accuracy, and can measure the towing resistance under various working conditions of the towing body. Utility Model Content

[0006] In view of the defects in the prior art, the purpose of the utility model is to provide a drag resistance measuring device.

[0007] According to the utility model, a drag resistance measuring device is provided, comprising: a pressure sensor, a pressure sensor fixing bracket, a guide pin, a sheath, a filler, a load-bearing rope, a head connector, a tail connector, a pressure ring and a tail diversion load-bearing interface;

[0008] A pressure sensor and a pressure sensor fixing bracket for installing the pressure sensor are arranged in the middle of the sheath, and a head connector and a tail connector are respectively installed at both ends of the sheath;

[0009] The pressure sensor fixing bracket includes a first fixing bracket and a second fixing bracket, the pressure sensor is arranged between the first fixing bracket and the second fixing bracket, the first connector is connected to the second fixing bracket through a section of load-bearing rope, and the tail diversion load-bearing interface is connected to the first fixing bracket through another section of load-bearing rope. When the two sections of load-bearing rope apply tension, the pressure sensor is indirectly pressurized through the first fixing bracket and the second fixing bracket.

[0010] Preferably, a non-rigid connection is adopted between the first fixing bracket and the second fixing bracket, and a guiding connection is achieved between the first fixing bracket and the second fixing bracket via a guide pin.

[0011] Preferably, the first fixing bracket is located on a side of the second fixing bracket facing the first connector, and the second fixing bracket is located on a side of the first fixing bracket facing the rear connector.

[0012] Preferably, the tail flow guide bearing interface comprises: a tail force bearing adapter plate, a tail force bearing plug, a tail flow guide cover and a lifting eye screw;

[0013] The tail load-bearing adapter plate is connected to one side of the tail load-bearing plug, and the other side of the tail load-bearing plug is connected to the tail air deflector, and the eye screw is installed at the end of the tail air deflector.

[0014] Preferably, the tail load-bearing adapter plate is located on the side of the tail load-bearing plug close to the pressure sensor fixing bracket, one end of a section of the load-bearing rope is connected to the tail load-bearing adapter plate, and the other end passes through the second fixing bracket and is connected to the first fixing bracket;

[0015] One end of another section of the load-bearing rope is connected to the first connector, and the other end passes through the first fixing bracket and is connected to the second fixing bracket.

[0016] Preferably, the tail connector is mounted on the tail load-bearing plug.

[0017] Preferably, both ends of the sheath are crimped onto the tail load-bearing plug and the head connector respectively through pressure rings.

[0018] Preferably, a filler is filled in the cavity formed by the head connector, the tail flow-guiding and load-bearing interface and the sheath.

[0019] Preferably, the sheath is configured as a tubular structure.

[0020] Compared with the prior art, the utility model has the following beneficial effects:

[0021] 1. The towing resistance measuring device of the utility model is integrated in a tubular sheath, and the front and rear ends are equipped with head and tail connectors. The head end can be directly connected to the towing cable, and the tail end can be directly connected to the underwater towing equipment. The towing resistance measurement value can be read in real time, and the towing resistance of the underwater towing equipment under various working conditions can be monitored. The overall integrated layout has better adaptability.

[0022] 2. The pressure sensor fixing bracket structure described in the utility model adopts a non-rigid connection and a group of guide pins for guiding and positioning, so as to ensure that when the pressure sensor brackets on both sides are subjected to force, the pulling force can be evenly transmitted to the pressure sensor, thereby ensuring the accuracy of the drag resistance measurement.

[0023] 3. The drag resistance measuring device of the utility model adopts a direct measurement method, which greatly reduces the accuracy loss of the drag resistance measurement value due to the influence of various roller spacings, angle errors, compression degrees and conversion errors. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Other features, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings:

[0025] Figure 1 It is a schematic diagram of the overall structure of the drag resistance measurement device;

[0026] Figure 2 It is a schematic diagram of the pressure sensor fixing bracket structure;

[0027] Figure 3 is a cross-sectional schematic diagram of a first fixing bracket;

[0028] Figure 4 is a cross-sectional schematic diagram of a second fixing bracket;

[0029] Figure 5 This is a schematic diagram of the tail diversion and load-bearing interface structure;

[0030] As shown in the figure:

[0031] DETAILED DESCRIPTION

[0032] The utility model is described in detail below in conjunction with specific embodiments. The following embodiments will help those skilled in the art to further understand the utility model, but do not limit the utility model in any form. It should be pointed out that for those of ordinary skill in the art, several changes and improvements can be made without departing from the concept of the utility model. These all belong to the protection scope of the utility model.

[0033] like Figure 1As shown, this embodiment includes: a pressure sensor 1, a pressure sensor fixing bracket 2, a sheath 3, a filler 4, a load-bearing rope 5, a head connector 6, a tail connector 7, a pressure ring 8 and a tail flow guide and load-bearing interface 9; the sheath 3 is a tubular structure, and the pressure sensor 1 and the pressure sensor fixing bracket 2 on which the pressure sensor 1 is installed are arranged in the middle part of the sheath 3, and the head connector 6 and the tail connector 7 are respectively installed at both ends of the sheath 3; the filler 4 is filled in the cavity formed by the head connector 6, the tail flow guide and load-bearing interface 9 and the sheath 3.

[0034] like Figure 2-4 As shown, the pressure sensor fixing bracket 2 includes a first fixing bracket 201 and a second fixing bracket 202, and the pressure sensor 1 is arranged between the first fixing bracket 201 and the second fixing bracket 202. The first fixing bracket 201 is located on the side of the second fixing bracket 202 facing the first connector 6, and the second fixing bracket 202 is located on the side of the first fixing bracket 201 facing the tail connector 7. The first connector 6 is connected to the second fixing bracket 202 through a section of load-bearing rope 5, and the tail diversion load-bearing interface 9 is connected to the first fixing bracket 201 through another section of load-bearing rope 5. When the two sections of load-bearing rope 5 apply tension, the pressure sensor 1 is indirectly pressed through the first fixing bracket 201 and the second fixing bracket 202. The first fixing bracket 201 and the second fixing bracket 202 are connected by a non-rigid connection, and the first fixing bracket 201 and the second fixing bracket 202 are connected by a guide pin 203. Specifically, the pressure sensor fixing bracket 2 is arranged in the sheath 3, and is used to fix the pressure sensor 1. The first fixing bracket 201 and the second fixing bracket 202 on both sides thereof are connected by a non-rigid connection, connected by a load-bearing rope 5 that penetrates on both sides, and are equipped with a set of guide pins 203, which are used for guiding and positioning the brackets on both sides to ensure that the pressure sensor 1 is positively stressed. When the load-bearing rope 5 is in a tensioned state, the first fixing bracket 201 and the second fixing bracket 202 are pressed toward each other, and the tension can be evenly transmitted to the pressure sensor 1 to ensure the accuracy of the towing resistance measurement. The pressure value of the pressure sensor 1 is the towing resistance to be measured, which is a direct measurement without the risk of conversion calculation error. The measurement result is uploaded to the shore end through the head connector 6 and the towing cable, and the towing resistance under various working conditions can be monitored in real time to determine the towing state of the underwater towing equipment. The pressure sensor fixing bracket 2 has reserved wire holes to facilitate the wiring of the head and tail connectors and the internal pressure sensor 1.

[0035] like Figure 5As shown, the tail flow guide bearing interface 9 includes: a tail bearing adapter plate 901, a tail bearing plug 902, a tail air deflector 903 and a lifting eye screw 904; wherein the tail bearing adapter plate 901 is connected to the tail bearing plug 902 by screws, the tail bearing adapter plate 901 is installed on the inner side of the sheath 3, and is used to hang one section of the bearing rope 5, the tail air deflector 903 is installed on the outer side of the tail bearing plug 902 by screws, and the lifting eye screw 904 is installed at the end of the tail air deflector 903. The tail bearing adapter plate 901 is located on the side of the tail bearing plug 902 close to the pressure sensor fixing bracket 2, one end of one section of the bearing rope 5 is connected to the tail bearing adapter plate 901, and the other end passes through the second fixing bracket 202 and is connected to the first fixing bracket 201; one end of another section of the bearing rope 5 is connected to the first connector 6, and the other end passes through the first fixing bracket 201 and is connected to the second fixing bracket 202. The tail connector 7 is installed on the tail load-bearing plug 902. The pressure ring 8 is used for the compression connection between the first connector 6 and the tail load-bearing plug 902 and the sheath 3 to ensure the sealing of the whole section.

[0036] The towing resistance measuring device can be directly connected to the towing cable for use, which is convenient and quick, and can read the towing resistance measurement value in real time to monitor the status of the towing equipment in various working conditions. The towing resistance measuring device is integrated in the sheath 3 and filled with filler 4. The overall sealing is reliable and pressure-resistant, and can be used in deep water environments; the tail diversion bearing interface 9 of the towing resistance measuring device is equipped with a universal mechanical interface that can be connected to various underwater towing equipment within a certain level.

[0037] This embodiment is installed between the towing cable and the underwater towing equipment and can be used in deep water environment. This embodiment is a method for directly measuring the towing resistance of each working condition by applying the tension generated by the towing cable and the underwater towing equipment to the pressure sensor 1. The head end is connected to the towing cable through the head connector 6 for convenient and quick use; the tail end underwater towing equipment is connected through the tail connector 7 and the tail diversion bearing interface 9, which are used for real-time information transmission, power supply and towing bearing of the underwater towing equipment respectively. The tail diversion bearing interface 903 is installed with a lifting eye screw 904, which can be hung with various underwater towing equipment within a certain level.

[0038] The entire towing resistance measuring device can operate in the corresponding deep-water environment according to the requirements of the underwater towing equipment, and because the sheath 3 is a tubular structure, it can be recovered and deployed as a part of the tow cable. It not only will not affect the recovery and deployment process of the underwater towing equipment, but also can monitor the towing resistance data under the recovery and deployment status in real time.

[0039] In the description of the present application, it should be understood that the terms "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0040] The above describes the specific embodiments of the present invention. It should be understood that the present invention is not limited to the above specific embodiments, and those skilled in the art can make various changes or modifications within the scope of the claims, which does not affect the essence of the present invention. In the absence of conflict, the embodiments of the present application and the features in the embodiments can be combined with each other at will.

Claims

1. A drag resistance measuring device, characterized in that: include: A pressure sensor (1), a pressure sensor fixing bracket (2), a sheath (3), a load-bearing rope (5), a head connector (6), a tail connector (7), and a tail flow guide load-bearing interface (9); A pressure sensor (1) and a pressure sensor fixing bracket (2) for mounting the pressure sensor (1) are arranged in the middle of the sheath (3), and a head connector (6) and a tail connector (7) are respectively mounted at both ends of the sheath (3); The pressure sensor fixing bracket (2) comprises a first fixing bracket (201) and a second fixing bracket (202); the pressure sensor (1) is arranged between the first fixing bracket (201) and the second fixing bracket (202); the first connector (6) is connected to the second fixing bracket (202) via a section of load-bearing rope (5); the tail flow guide load-bearing interface (9) is connected to the first fixing bracket (201) via another section of load-bearing rope (5); when the two sections of load-bearing rope (5) apply tension, pressure is indirectly applied to the pressure sensor (1) via the first fixing bracket (201) and the second fixing bracket (202).

2. The drag resistance measuring device according to claim 1, characterized in that: The first fixing bracket (201) and the second fixing bracket (202) are connected in a non-rigid manner, and the first fixing bracket (201) and the second fixing bracket (202) are connected in a guiding manner via a guide pin (203).

3. The drag resistance measuring device according to claim 1, characterized in that: The first fixing bracket (201) is located on the side of the second fixing bracket (202) facing the first connector (6), and the second fixing bracket (202) is located on the side of the first fixing bracket (201) facing the rear connector (7).

4. The drag resistance measuring device according to claim 1, characterized in that: The tail flow guide and load bearing interface (9) comprises: a tail load bearing adapter plate (901), a tail load bearing plug (902), a tail flow guide cover (903) and a lifting eye screw (904); The tail load-bearing adapter plate (901) is connected to one side of the tail load-bearing plug (902), and the other side of the tail load-bearing plug (902) is connected to the tail air deflector (903), and the eye screw (904) is installed at the end of the tail air deflector (903).

5. The drag resistance measuring device according to claim 4, characterized in that: The tail load-bearing adapter plate (901) is located on the side of the tail load-bearing plug (902) close to the pressure sensor fixing bracket (2), one end of a section of the load-bearing rope (5) is connected to the tail load-bearing adapter plate (901), and the other end passes through the second fixing bracket (202) and is connected to the first fixing bracket (201); One end of the other section of the load-bearing rope (5) is connected to the first connector (6), and the other end passes through the first fixed bracket (201) and is connected to the second fixed bracket (202).

6. The drag resistance measuring device according to claim 4, characterized in that: The tail connector (7) is mounted on the tail load-bearing plug (902).

7. The drag resistance measuring device according to claim 4, characterized in that: The two ends of the sheath (3) are respectively crimped onto the rear load-bearing plug (902) and the head connector (6) via a pressure ring (8).

8. The drag resistance measuring device according to claim 1, characterized in that: The cavity formed by the head connector (6), the tail flow-guiding and load-bearing interface (9) and the sheath (3) is filled with a filler (4).

9. The drag resistance measuring device according to claim 1, characterized in that: The sheath (3) is a tubular structure.

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