Aerosol generating device and system for real ship airflow field test

Abstract

The invention discloses an aerosol generating device and system for a real ship airflow field test. The aerosol generating device for the real ship airflow field test comprises a rectifying pipeline, a pumping device and a generating unit, the pumping device and the generating unit are installed on the rectifying pipeline, a booster pump and a flow guide pipe are arranged in the generating unit, and incoming flow of the rectifying pipeline is pressurized by the booster pump and then sent to the flow guide pipe. An atomizing sheet is arranged at an outlet of the flow guide pipe so that outlet jet flow can be generated into vaporific aerosol particles and the vaporific aerosol particles can be sprayed into air. According to the aerosol generating device, through an active aerosol generating method, the problem that in the prior art, the concentration of hollow aerosol is too low, and the hollow aerosol cannot be captured and reflected by laser beams, so that outboard wind measurement of a laser radar is affected is solved.

Description

Technical Field

[0001] The present invention relates to the field of radar testing technology, and in particular to an aerosol generating device and a system thereof for testing an airflow field of a real ship. Background Art

[0002] The normal operation of LiDAR outboard wind measurement requires two test conditions to be met: First, the aerosol density in the measured airspace needs to reach a certain concentration (e.g. 1 particle / cm 2 ) can be captured and reflected by the laser beam; Second, the aerosol distribution in the measurement airspace needs to be relatively uniform (for example, the lateral distribution concentration in the measurement airspace is basically the same) to ensure that the intensity distribution of the reflected signal is basically consistent, so that the amount of data obtained by the lidar in each cross section after a scan is uniform and available.

[0003] However, in a real ship test environment, affected by marine environmental conditions and natural wind shear, conditions that affect the operation of the lidar may occur in the test area, limiting the use of the equipment and the normal progress of the test.

[0004] (1) The sea area has just experienced rainfall or large-scale air currents, resulting in aerosol concentration on board being too low to be captured and reflected by the laser beam; (2) Natural wind shear causes uneven distribution of aerosols in the measurement airspace, which leads to uneven distribution of test data and reduces the validity of the test results. Summary of the invention

[0005] The main purpose of the present invention is to provide an aerosol generating device and a system thereof for testing the airflow field of a real ship, aiming to solve the problem in the prior art that the aerosol concentration is too low and cannot be captured and reflected by the laser beam, thus affecting the outboard wind measurement of the laser radar.

[0006] To achieve the above object, the present invention provides an aerosol generating device for testing the airflow field of a real ship, comprising a rectifying pipeline and a pumping device and a generating unit installed on the rectifying pipeline, wherein: The generating unit is provided with a booster pump and a guide pipe. The booster pump pressurizes the incoming flow of the rectifying pipeline and sends it to the guide pipe. The outlet of the guide pipe is provided with an atomizing sheet to generate the outlet jet into mist-like aerosol particles and sprinkle them into the air.

[0007] Preferably, the aerosol generating device for testing the airflow field of a real ship further comprises an aerosol supply device connected to the injection port of the rectifying pipeline.

[0008] Preferably, the aerosol supply device can supply aerosols of at least two components.

[0009] Preferably, a marine sealing ring is installed on the contact surface between the rectifying pipeline and the pumping device and the generating unit.

[0010] Preferably, the generating unit comprises a hollow shell and a flow guide pipe connected to the shell, and the booster pump is located inside the shell.

[0011] Preferably, a plurality of generating units are evenly arranged on the rectifier pipeline.

[0012] Preferably, the rectifier pipeline is installed on the deck using mooring ropes.

[0013] Preferably, the rectifying pipeline comprises a plurality of branch pipelines, and a plurality of generating units are evenly installed on each branch pipeline.

[0014] Preferably, the aerosol generating device for testing the airflow field of a real ship further comprises a control device electrically connected to the pumping device and the booster pump.

[0015] The present invention further proposes an aerosol generating system for testing the airflow field of a real ship, comprising the above-mentioned aerosol generating device for testing the airflow field of a real ship.

[0016] The aerosol generating device for testing the airflow field of a real ship proposed by the present invention has the following beneficial effects: 1. For the first time, active aerosol generation technology was proposed, which can generate aerosols with a concentration greater than the detectable concentration of laser radar (e.g. 1 particle / cm 2 ); 2. An array-based uniform generation method is proposed, which can evenly supplement the aerosol concentration in the test airspace, and actively create a uniform aerosol space when the air aerosol uniformity does not meet the test requirements; 3. The aerosol generating device has the advantages of simple structure, easy production and manufacturing, and stable operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of a preferred embodiment of an aerosol generating device for testing the airflow field of a real ship according to the present invention; Figure 2 It is a schematic structural diagram of a generating unit in a preferred embodiment of an aerosol generating device for testing airflow fields on a real ship according to the present invention.

[0018] In the figure, 1-injection port, 2-pumping device, 3-rectifier pipeline, 4-generating unit, 5-boosting pump, 6-guide pipe, 7-atomizer.

[0019] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0020] It should be understood that the specific embodiments described herein are only used to explain the present invention, and are not used to limit the present invention.

[0021] It should be noted that in the description of the present invention, the terms "transverse", "longitudinal", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second" and the like are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0022] The invention provides an aerosol generating device for testing the airflow field of a real ship.

[0023] Reference Figure 1 and Figure 2 In this preferred embodiment, an aerosol generating device for testing the airflow field of a real ship includes a rectifying pipeline 3 and a pumping device 2 and a generating unit 4 installed on the rectifying pipeline 3, wherein: A booster pump 5 and a guide pipe 6 are provided in the generating unit 4. The booster pump 5 pressurizes the incoming flow of the rectifying pipeline 3 and sends it to the guide pipe 6. An atomizer 7 is provided at the outlet of the guide pipe 6 to generate the outlet jet into mist-like aerosol particles and sprinkle them into the air.

[0024] Furthermore, the aerosol generating device for testing the air flow field of a real ship also includes an aerosol supply device connected to the injection port of the rectifying pipeline 3. The aerosol supply device can supply aerosols of at least two components. A honeycomb inner net can be arranged inside the rectifying pipeline 3.

[0025] The aerosol supply device can replace the aerosol composition according to the test needs. When the work is affected by insufficient density of spatial particles in the test radar environment, aerosols of water-based molecules can be sprayed into the air; when the distribution area of ​​spatial particles in the test radar environment is uneven, aerosols of oil-based molecules can be sprayed into the air.

[0026] Furthermore, a marine sealing ring is installed on the contact surface between the rectifying pipeline 3 and the pumping device 2 and the generating unit 4. In the offshore environment, the impact of wind and waves on land facilities is difficult to overcome. The aerosol generating device adopts a marine sealing ring set on the device that needs to be sealed, thereby effectively reducing the infiltration of seawater or rainwater into the aerosol generating device to affect its normal operation.

[0027] Specifically, in this embodiment, referring to Figure 2The generating unit 4 includes a hollow shell and a flow guide pipe 6 connected to the shell, and the booster pump 5 is located inside the shell.

[0028] In this embodiment, a plurality of generating units 4 are evenly arranged on the rectifying pipeline 3 in an array arrangement to form a uniform aerosol.

[0029] Specifically, the rectifying pipeline 3 is installed on the deck by using a mooring rope. Further, the rectifying pipeline 3 can be provided with a plurality of branch pipelines, and a plurality of generating units 4 are evenly installed on each branch pipeline.

[0030] The aerosol generating device for testing the air flow field of a real ship also includes a control device electrically connected to the pumping device 2 and the booster pump 5. The control device is used to automatically control the opening and closing of the pumping device 2 and the booster pump 5 and the size of the working power.

[0031] The specific working process of the aerosol generating device used for the actual ship air flow field test is as follows: First, the test personnel set the frequency and time of the control action on the control device, including the injection port and the pumping device 2, which are located at both ends of the aerosol generating array and are mainly used to receive and pump the generated liquid into the rectifying pipeline 3 (3) and the generating unit 4. During the test, the pumped liquid enters the generating unit 4 after being stabilized and uniformly passed through the internal structure (such as the honeycomb inner net) of the rectifying pipeline 3. Each generating unit 4 is provided with a booster pump 5 to pressurize the incoming flow and then send it to the guide pipe 6. The outlet of the guide pipe 6 is provided with an atomizer sheet 7. Through the principle similar to the nozzle of the medical atomizer device, the outlet jet is generated into a mist aerosol particles and sprinkled into the air.

[0032] The aerosol generator is placed on the edge of the deck before the test begins. The jet port of the guide pipe 6 faces the direction of the laser radar irradiation airspace. The generating units 4 are connected through the rectifying pipeline 3 at equal intervals. The number of generating units 4 is determined according to the width of the deck or the generation concentration requirements (for example, 5). The generating liquid (for example, fresh water) is injected into the injection port. When aerosol generation is required, the power supply of the pumping device 2 is turned on, and the aerosol generator starts working. The working time is usually the same as the laser radar scanning test time. After the test is completed, it is determined whether to perform the aerosol generation operation again or to put away the aerosol generator according to the data collection effect.

[0033] The aerosol generating device for testing the airflow field of a real ship proposed by the present invention has the following beneficial effects: 1. For the first time, active aerosol generation technology was proposed, which can generate aerosols with a concentration greater than the detectable concentration of laser radar (e.g. 1 particle / cm 2 ); 2. An array-based uniform generation method is proposed, which can evenly supplement the aerosol concentration in the test airspace. When the air aerosol uniformity does not meet the test requirements, a uniform aerosol space can be actively created, thereby improving the effectiveness and accuracy of the test results of outboard wind measurement; 3. The aerosol generating device has the advantages of simple structure, easy production and manufacturing, and stable operation.

[0034] The present invention further proposes an aerosol generating system for testing the airflow field of a real ship.

[0035] In this preferred embodiment, an aerosol generating system for testing the airflow field of a real ship includes the above-mentioned aerosol generating device for testing the airflow field of a real ship. The specific structure and beneficial effects of the aerosol generating device refer to the above-mentioned embodiment and will not be repeated here.

[0036] The above are only preferred embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Any equivalent structural transformations made using the contents of the present invention's specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. An aerosol generating device for testing the airflow field of a real ship, characterized in that: It includes a rectifier pipeline and a pumping device and a generating unit installed on the rectifier pipeline, wherein: The generating unit is provided with a booster pump and a guide pipe. The booster pump pressurizes the incoming flow of the rectifying pipeline and sends it to the guide pipe. The outlet of the guide pipe is provided with an atomizing sheet to generate the outlet jet into mist-like aerosol particles and sprinkle them into the air.

2. The aerosol generating device for testing the airflow field of a real ship as claimed in claim 1, characterized in that: It also includes an aerosol supply device connected to the injection port of the rectifying pipeline.

3. The aerosol generating device for testing the airflow field of a real ship as claimed in claim 2, characterized in that: The aerosol supply device can supply aerosols of at least two components.

4. The aerosol generating device for testing the airflow field of a real ship as claimed in claim 1, characterized in that: A marine sealing ring is installed on the contact surface between the rectifying pipeline, the pumping device and the generating unit.

5. The aerosol generating device for testing the airflow field of a real ship as claimed in claim 1, characterized in that: The generating unit comprises a hollow shell and a flow guide pipe connected to the shell, and the booster pump is located inside the shell.

6. The aerosol generating device for testing the airflow field of a real ship as claimed in claim 1, characterized in that: A plurality of generating units are evenly arranged on the rectifying pipeline.

7. The aerosol generating device for testing the airflow field of a real ship as claimed in claim 1, characterized in that: The rectifier pipeline is installed on the deck by using mooring ropes.

8. The aerosol generating device for testing the airflow field of a real ship as claimed in claim 1, characterized in that: The rectifying pipeline comprises a plurality of branch pipelines, and a plurality of generating units are evenly installed on each branch pipeline.

9. The aerosol generating device for testing the airflow field of a real ship according to any one of claims 1 to 8, characterized in that: Also included is a control device electrically connected to the pumping device and the booster pump.

10. An aerosol generating system for testing the airflow field of a real ship, characterized in that: It comprises an aerosol generating device for testing the airflow field of a real ship as described in any one of claims 1 to 9.

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