Water surface cleaning device for towing tank

Abstract

The invention belongs to the technical field related to hydrodynamic test, and discloses a towing tank water surface cleaning device which comprises a central measuring bridge movably connected to a trailer system and a water surface cleaning assembly connected to the central measuring bridge. The trailer system is used for driving the water surface cleaning assembly to move in the length direction of the towing tank through the central measuring bridge. The central measuring bridge is used for driving the water surface cleaning assembly to move in the depth direction of the towing tank so that the distance between the water surface cleaning assembly and the water surface of the tank can be kept at a preset value. The water surface cleaning assembly comprises a water pump arranged below the central measuring bridge, the water pump is provided with a water pump water outlet pipe, and the water pump is used for pumping water surface impurities in the towing tank and discharging the water surface impurities out of the towing tank through the water pump water outlet pipe. According to the invention, efficient cleaning is realized.

Description

Technical Field

[0001] The present invention belongs to the technical field related to hydrodynamic test and more specifically, relates to a towing pool water surface cleaning device. Background Art

[0002] Ships are transportation tools that sail or anchor in waters for transportation or operations, so the study of their hydrodynamic characteristics is particularly important. The ship model towing tank laboratory is one of the most important facilities for ship hydrodynamic testing, providing strong support for the advancement and development of ship technology. The ship model towing tank laboratory consists of two parts: a tank and a trailer. It can simulate the ship's navigation process to conduct model towing tests, measure the mechanical properties and motion parameters of the model during towing, and complete the prediction and evaluation of the actual ship's speed, seakeeping, maneuverability, etc. through certain conversion criteria, guiding ship design and engineering practice.

[0003] During the hydrodynamic test in the ship model towing tank laboratory, the quality of the water in the tank has a significant impact on the test results and conversion. Oil on the water surface will adhere to the surface of the hull and cause distortion of the test results. Parameters such as water density and viscosity are required in the test data conversion process. Dust and other impurities on the water surface will change the water properties and cause unforeseen conversion errors. Therefore, for the ship model towing tank laboratory, it is very important to clean the water surface regularly. For larger impurities, a filter can be used to salvage and clean them. For impurities such as oil and dust that are difficult to salvage, a wooden straight board with the same width as the pool is generally floated on the water surface. It is pushed horizontally from one end of the pool to the other end to gather the surface dust and oil and then centrally processed. This method can clean the water surface to a certain extent, but because the density of dust and oil is close to that of water, it is easy to mix into the water and escape during the wooden straight board push, and the cleaning effect is poor. Summary of the invention

[0004] In view of the above defects or improvement needs of the prior art, the present invention provides a towing pool water surface cleaning device, which aims to solve the problem of poor cleaning effect of the existing towing pool.

[0005] To achieve the above-mentioned purpose, according to one aspect of the present invention, there is provided a towing pool water surface cleaning device, the device comprising a central measuring bridge movably connected to a trailer system and a water surface cleaning component connected to the central measuring bridge, the trailer system is used to drive the water surface cleaning component to move along the length direction of the towing pool through the central measuring bridge; the central measuring bridge is used to drive the water surface cleaning component to move along the depth direction of the towing pool so that the distance between the water surface cleaning component and the water surface of the pool is maintained at a predetermined value; the water surface cleaning component comprises a water pump arranged below the central measuring bridge, the water pump is provided with a water pump outlet pipe, the water pump is used to extract impurities from the water surface of the towing pool and discharge them out of the towing pool through the water pump outlet pipe.

[0006] Furthermore, the water pump is also provided with a water pump inlet, and the water pump inlet is funnel-shaped, and its open end is arranged toward the central measuring bridge.

[0007] Furthermore, when the device is in working state, the water pump is arranged in the water of the towing pool, and the distance between the water pump and the water surface of the pool is 1 mm to 2 mm.

[0008] Furthermore, two water pump bases are arranged at intervals on the central measuring bridge, and the two water pump bases are connected to the water pump through a vertically arranged water pump bracket.

[0009] Furthermore, the pool base of the towing pool is provided with pool tracks on two pool walls along its length direction respectively, and the trailer system is arranged on the pool tracks, and a rolling connection is formed between the two.

[0010] Furthermore, a plurality of groups of traveling wheel frames are arranged on the pool track, and the trailer system is arranged on the traveling wheel frames.

[0011] Furthermore, the trailer system is formed with a rectangular groove, and the opposite ends of the rectangular groove are respectively vertically provided with a bridge measuring guide rail, a bridge measuring screw and a bridge measuring lifting motor. The bridge measuring screw is arranged between the two bridge measuring guide rails, and the bridge measuring lifting motor is connected to one end of the bridge measuring screw, which is used to drive the bridge measuring screw to rotate forward and reverse.

[0012] Furthermore, the two ends of the central measuring bridge are respectively connected to the two measuring bridge screws, and the measuring bridge lifting motor drives the measuring bridge screws to rotate, and then drives the water pump to move up and down through the central measuring bridge to maintain the distance between the water pump and the water surface of the pool.

[0013] Furthermore, a rangefinder is provided on the central measuring bridge, and the rangefinder is used to detect the height between the central measuring bridge and the water surface of the pool, and transmit the detected value to the microprocessor, and the microprocessor processes the received data to issue instructions to the measuring bridge lifting motor, and the measuring bridge lifting motor is used to work according to the received instructions to make the height of the central measuring bridge from the water surface of the pool constant, that is, the distance between the water pump and the water surface of the pool is constant.

[0014] Furthermore, an axial flow fan is arranged on the water pool wall arranged at the periphery of the towing water pool, and a plurality of axial flow fans are arranged on the water pool wall at intervals along the length direction of the towing water pool.

[0015] In general, compared with the prior art, the towing pool water surface cleaning device provided by the present invention has the following beneficial effects:

[0016] 1. The trailer system is used to drive the water surface cleaning component to move along the length direction of the towing pool through the central measuring bridge; the central measuring bridge is used to drive the water surface cleaning component to move along the depth direction of the towing pool so that the distance between the water surface cleaning component and the water surface of the pool is maintained at a predetermined value; the water surface cleaning component includes a water pump arranged under the central measuring bridge, the water pump is provided with a water pump outlet pipe, the water pump is used to extract impurities on the water surface of the towing pool and discharge them into the towing pool through the water pump outlet pipe, thereby realizing efficient automatic cleaning of impurities.

[0017] 2. The device makes full use of the existing trailer system and axial flow fan ventilation system of the ship model towing pool. The axial flow fan is turned on at a specified position to form a weak airflow inside the pool to achieve the aggregation of impurities such as dust and oil. The surface sewage is automatically collected through the funnel-shaped large opening of the water inlet under the action of water viscosity and gravitational potential energy. The central measuring bridge of the trailer system is automatically raised and lowered to achieve fully automatic sewage suction and discharge. After completing the cleaning of one area, the trailer system can be driven to another area and the above operation is repeated, ultimately achieving the purpose of automatic and efficient cleaning of the water body of the ship model towing pool. The high degree of automation can reduce the cost of water surface cleaning and improve the efficiency of the pool.

[0018] 3. The water pump is set in the water of the towing pool, and the distance between it and the water surface of the pool is 1mm to 2mm, ensuring that surface water with sufficient impurities such as oil, dust, etc. continuously enters the water pump and is discharged, so as to achieve the purpose of cleaning the water surface.

[0019] 4. The linkage between the rangefinder and the measuring bridge lifting motor can realize autonomous adjustment of the height of the central measuring bridge when there is a slight change in the water surface height, so that the height of the central measuring bridge from the water surface is constant. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a main body cross-sectional view of a towing pool water surface cleaning device provided by the present invention;

[0021] Figure 2 It is a schematic diagram of the main components of the trailer system;

[0022] Figure 3 It is a schematic diagram of the lifting and lowering of the central measuring bridge in the trailer system;

[0023] Figure 4 is a schematic diagram of the installation of a water surface cleaning assembly provided by an embodiment of the present invention;

[0024] Figure 5 It is a suction diagram of the water surface cleaning component.

[0025] In all the drawings, the same figure numbers are used to represent the same elements or structures, among which: 1-towing pool, 2-pool base, 3-pool water surface, 4-pool wall, 5-axial flow fan, 6-pool track, 7-trailer system, 8-central measuring bridge, 9-measuring bridge guide rail, 10-measuring bridge screw, 11-measuring bridge lifting motor, 12-rangefinder base, 13-rangefinder, 14-water pump base, 15-water pump bracket, 16-water pump, 17-water pump outlet pipe, 18-water pump inlet. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0027] See also Figure 1 and Figure 2 The present invention provides a towing pool 1 water surface cleaning device, which quickly gathers impurities such as oil, dust, etc. on the surface of the towing pool 1 and discharges them from the pool by suction by the rangefinder 13, thereby achieving automatic and efficient cleaning of the pool water surface 3, and providing the necessary environmental basic guarantee for the ship model towing pool 1 experiment. At the same time, the cleaning effect of the device is good, the degree of automation is high, the labor cost is greatly reduced, and the efficient cleaning of the pool water surface 3 can be achieved.

[0028] See also Figure 3 , Figure 4 and Figure 5 The device comprises a central measuring bridge 8 movably connected to a trailer system 7 and a water surface cleaning assembly connected to the central measuring bridge 8. The trailer system 7 is used to drive the water surface cleaning assembly to move along the length direction of the towing pool 1 through the central measuring bridge 8. The central measuring bridge 8 is used to drive the water surface cleaning assembly to move along the depth direction of the towing pool 1 so that the distance between the water surface cleaning assembly and the water surface 3 of the pool is maintained at a predetermined value.

[0029] The water surface cleaning assembly includes a rangefinder 13 disposed below the central measuring bridge 8, and the rangefinder 13 is provided with a water pump outlet pipe 17 and a water pump inlet 18, respectively. The end of the water pump outlet pipe 17 away from the water pump protrudes from the towing pool 1. The water pump inlet 18 is funnel-shaped, and its open end is disposed toward the central measuring bridge 8. The water pump is used to extract impurities such as oil, dust, etc. on the water surface of the towing pool 1 and discharge them from the towing pool 1 through the water pump outlet pipe 17.

[0030] In this embodiment, when working, the water pump is set in the water of the towing pool 1, and the distance between it and the water surface 3 of the pool is 1mm to 2mm, ensuring that surface water with sufficient mixed impurities such as oil, dust, etc. continuously enters the water pump and is discharged, so as to achieve the purpose of cleaning the water surface; two water pump bases 14 are arranged at intervals on the central measuring bridge 8, and the two water pump bases 14 are connected to the water pump through a vertically arranged water pump bracket 15.

[0031] The pool base 2 of the towing pool 1 is provided with pool tracks 6 on two pool walls along its length direction, and the trailer system 7 is provided on the pool tracks 6, and a rolling connection is formed between the two. Specifically, the pool tracks 6 are provided with a plurality of groups of running wheel frames, and the trailer system 7 is provided on the running wheel frames, so that the trailer system 7 can run stably in the length direction of the pool and stop at a designated position.

[0032] The trailer system 7 is formed with a rectangular groove, and the two opposite ends of the rectangular groove are respectively vertically provided with a bridge guide rail 9, a bridge screw rod 10 and a bridge lifting motor 11. The bridge screw rod 10 is arranged between the two bridge guide rails 9. The bridge lifting motor 11 is connected to one end of the bridge screw rod 10, and is used to drive the bridge screw rod 10 to rotate forward and reverse. The two ends of the central bridge 8 are respectively connected to the two bridge screw rods 10. The bridge lifting motor 11 drives the bridge screw rod 10 to rotate, and then drives the water pump to move up and down through the central bridge 8 to maintain the distance between the water pump and the water surface 3 of the pool.

[0033] The central measuring bridge 8 is provided with a rangefinder 13, which is used to detect the height between the central measuring bridge 8 and the water surface 3 of the pool, and transmit the detected value to the microprocessor, which processes the received data to issue instructions to the measuring bridge lifting motor 11, and the measuring bridge lifting motor 11 is used to work according to the received instructions to make the height of the central measuring bridge 8 from the water surface 3 of the pool constant, that is, the distance between the water pump and the water surface 3 of the pool constant, so that the rangefinder 13 and the measuring bridge lifting motor 11 are linked to realize autonomous adjustment of the height of the central measuring bridge 8 when the water surface height changes slightly, so that the height of the central measuring bridge 8 from the water surface is constant.

[0034] An axial flow fan 5 is arranged on the pool wall 4 arranged outside the towing pool 1, and the axial flow fan 5 forms an air flow circulation inside the pool. The axial flow fans 5 can be independently controlled to be turned on or off in groups, and are used to suck out the air in the pool to achieve ventilation, air exchange, humidity reduction and the like.

[0035] In this embodiment, the towing pool 1 is in the shape of a long strip, which can be hundreds of meters long and is used to provide towing power for model navigation to carry out hydrodynamic testing. In order to ensure the stability of parameters such as water quality, water density, and viscosity, it is generally an indoor pool.

[0036] The pool wall 4 is the outer building wall of the towing pool 1. A plurality of axial flow fans 5 are arranged on the pool wall 4 at intervals along the length direction of the towing pool 1. The central measuring bridge 8 is a horizontal measuring bridge in the middle of the trailer, which can realize the automatic lifting function through motor control. The measuring bridge guide rail 9 is the lifting and lowering motion guide rail of the central measuring bridge 8, which assists the central measuring bridge 8 to complete the lifting. The measuring bridge screw 10 provides power to the central measuring bridge 8 by rotating.

[0037] The water pump support 15 is used to ensure that the water pump is firm, stable and has no shaking when running. The water pump outlet pipe 17 is a soft water pipe connected to the outlet of the water pump and is used to discharge sewage.

[0038] In one embodiment, the towing pool 1 is a long strip of water, which can be hundreds of meters long, with a width generally ranging from 6 to 12 meters and a water depth generally around 4 meters. The water surface 3 of the pool is the waterline position of the towing pool 1, and the pool base 2 is the pressure-bearing wall in the length direction of the towing pool 1. The central measuring bridge 8 is a horizontal measuring bridge in the middle of the trailer, and its main function is to install or build a test model for towing and conducting hydrodynamic tests. The central measuring bridge 8 realizes the automatic lifting function through motor control. The specific principle is that the measuring bridge lifting motor 11 on both sides synchronously controls the measuring bridge lifting motor 11 to drive the central measuring bridge 8 screw rod to rotate. At this time, the central measuring bridge 8 rises or falls along the measuring bridge guide rail 9 under the action of the measuring bridge screw rod 10 rotating the threaded rod.

[0039] A rangefinder is installed on the rangefinder base 12, and the measuring direction is perpendicular to the pool water surface 3, which can accurately measure the height value of the measuring bridge from the pool water surface 3. After the trailer system 7 sets the height value of the central measuring bridge 8 from the pool water surface 3, when the pool water surface 3 rises and falls slightly, the rangefinder can automatically identify the height change of the pool water surface 3 from the central measuring bridge 8, and feed it back to the measuring bridge lifting motor 11 for automatic adjustment, so that the distance between the central measuring bridge 8 and the pool water surface 3 is always maintained at the set value.

[0040] Two sets of water pump bases 14 are installed and fixed on the central measuring bridge 8, and a water pump bracket 15 is vertically installed and fixed on the side of the water pump base 14 and extends into the towing pool 1. The water pump bracket 15 is lowered and installed to fix the water pump. The water pump inlet 18 is in the shape of a large funnel opening, and the opening is placed slightly below the water surface (about 1 to 2 mm) to ensure that enough surface water mixed with impurities such as oil, dust, etc. continuously enters the water pump and is discharged from the water pump outlet pipe 17.

[0041] When using the device of the present invention, the trailer system 7 is moved to a suitable position of the towing pool 1 and then stopped, and the axial flow fan 5 on the corresponding position of the pool wall 4 is turned on to form an air circulation inside the pool, and impurities such as oil, dust and the like on the water surface 3 of the pool slowly gather toward the position of the trailer system 7; after the water pump is installed according to the above steps, the height of the central measuring bridge 8 is adjusted so that the water pump inlet 18 is slightly lower than the water surface 3 of the pool (about 1mm to 2mm), and this height is set as the central measuring bridge 8 to automatically adjust and maintain the height. At this time, the oil on the water surface continuously enters the water pump inlet 18 under the action of the weak wind flow formed by the axial flow fan 5 and the viscosity of the water at the water pump inlet 18, and is discharged from the pool through the water pump outlet pipe 17 to clean the water surface. After a certain period of pumping, the water surface 3 of the pool will drop slightly. At this time, the distance meter detects that the distance between the central measuring bridge 8 and the water surface 3 of the pool has changed, and feedback adjustment is performed through the measuring bridge lifting motor 11 to ensure that the distance between the central measuring bridge 8 and the water surface 3 of the pool is constant, that is, to ensure that impurities such as oil, dust and other impurities on the surface of the water always efficiently enter the water pump inlet 18 and are discharged. After completing the cleaning of one area, the trailer system 7 can be driven to another area to stop, and the above operation is repeated, and finally the automatic and efficient cleaning of the water body of the ship model towing pool 1 is achieved.

[0042] It will be easily understood by those skilled in the art that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A towing pool water surface cleaning device, characterized in that: The device includes a central measuring bridge movably connected to the trailer system and a water surface cleaning component connected to the central measuring bridge. The trailer system is used to drive the water surface cleaning component to move along the length direction of the towing pool through the central measuring bridge; the central measuring bridge is used to drive the water surface cleaning component to move along the depth direction of the towing pool so that the distance between the water surface cleaning component and the water surface of the pool is maintained at a predetermined value; the water surface cleaning component includes a water pump arranged under the central measuring bridge, the water pump is provided with a water pump outlet pipe, and the water pump is used to extract impurities on the water surface of the towing pool and discharge them from the towing pool through the water pump outlet pipe.

2. The towing pool water surface cleaning device according to claim 1, characterized in that: The water pump is also provided with a water pump inlet, which is funnel-shaped, and its open end is arranged toward the central measuring bridge.

3. The towing pool water surface cleaning device according to claim 1, characterized in that: When the device is in working state, the water pump is arranged in the water of the towing pool, and the distance between the water pump and the water surface of the pool is 1 mm to 2 mm.

4. The towing pool water surface cleaning device according to claim 1, characterized in that: Two water pump bases are arranged on the central measuring bridge at intervals, and the two water pump bases are connected to the water pump through a vertically arranged water pump bracket.

5. The towing pool water surface cleaning device according to claim 1, characterized in that: The pool base of the towing pool is provided with pool tracks on two pool walls along the length direction thereof, respectively. The trailer system is arranged on the pool tracks, and a rolling connection is formed between the two.

6. The towing pool water surface cleaning device according to claim 5, characterized in that: A plurality of groups of traveling wheel frames are arranged on the pool track, and the trailer system is arranged on the traveling wheel frames.

7. The towing pool water surface cleaning device according to claim 1, characterized in that: The trailer system is formed with a rectangular groove, and the two opposite ends of the rectangular groove are respectively vertically provided with a bridge measuring guide rail, a bridge measuring screw and a bridge measuring lifting motor. The bridge measuring screw is arranged between the two bridge measuring guide rails, and the bridge measuring lifting motor is connected to one end of the bridge measuring screw, which is used to drive the bridge measuring screw to perform forward and reverse rotation.

8. The towing pool water surface cleaning device according to claim 7, characterized in that: The two ends of the central measuring bridge are respectively connected to the two measuring bridge screws. The measuring bridge lifting motor drives the measuring bridge screws to rotate, and then drives the water pump to move up and down through the central measuring bridge to maintain the distance between the water pump and the water surface of the pool.

9. The towing pool water surface cleaning device according to claim 7, characterized in that: A rangefinder is provided on the central measuring bridge, and the rangefinder is used to detect the height between the central measuring bridge and the water surface of the pool, and transmit the detected value to the microprocessor. The microprocessor processes the received data to issue instructions to the measuring bridge lifting motor. The measuring bridge lifting motor is used to work according to the received instructions to make the height of the central measuring bridge from the water surface of the pool constant, that is, the distance between the water pump and the water surface of the pool is constant.

10. The towing pool water surface cleaning device according to any one of claims 1 to 9, characterized in that: An axial flow fan is arranged on the water pool wall arranged at the periphery of the towing water pool, and a plurality of axial flow fans are arranged on the water pool wall at intervals along the length direction of the towing water pool.

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