An observation device suitable for obtaining surface sound velocity in polar ice areas

Abstract

The present invention relates to the technical field of observation of surface sound velocity, and discloses an observation device suitable for obtaining surface sound velocity in polar ice regions, which comprises: a power part; a liquid pump, which is transmission-connected with the power part, the liquid pump comprises a pump body and a filter element located at the inlet of the pump body, and a pump cavity is defined in the pump body; a sound velocity meter, which is arranged in the pump cavity to detect the surface sound velocity of the liquid in the pump cavity; a flow detection element, which is arranged at the inlet or outlet of the liquid pump to detect the real-time flow of the liquid pumped into or discharged from the pump cavity per unit time, and the liquid pump is closed when the real-time flow is lower than a preset flow. The observation device suitable for obtaining surface sound velocity in polar ice regions disclosed by the present invention can block larger solids outside the pump cavity, reducing the probability of damage to the sound velocity meter. When the real-time flow is lower than the preset flow, it indicates that there is solid blocking the liquid pump, and the liquid pump should be closed in time at this time, so as to protect the sound velocity meter and the liquid pump and extend the service life of the device.

Description

Technical Field

[0001] The present invention relates to the technical field of surface sound velocity observation, and in particular to an observation device suitable for obtaining surface sound velocity in polar ice regions. Background Art

[0002] During the multi-beam surface sound velocity measurement process, the sound velocity value near the receiving array surface is used for receiving beam control, that is, beam steering, which is crucial for all planar array sonars. Usually, the surface sound velocity meter of the research ship is installed in a tube-mounted manner, that is, a stainless steel tube is installed vertically from the waterline to the bottom of the ship, and the sound velocity meter is dropped to the bottom of the ship with a rope to obtain the surface sound velocity in real time. However, for polar icebreakers, the above method has great hidden dangers, and drifting ice can easily damage the sound velocity meter. Summary of the invention

[0003] Based on the above, the purpose of the present invention is to provide an observation device suitable for obtaining the surface sound velocity of polar ice areas, which greatly reduces the probability of damage to the sound velocity meter.

[0004] To achieve the above object, the present invention adopts the following technical solutions:

[0005] An observation device suitable for obtaining the surface sound velocity of a polar ice region comprises: a power component; a liquid pump, the liquid pump is transmission-connected to the power component, the liquid pump comprises a pump body and a filter element located at the inlet of the pump body, a pump cavity is defined within the pump body; a sound velocity meter, the sound velocity meter is disposed in the pump cavity to detect the surface sound velocity of the liquid in the pump cavity; a flow detection element, the flow detection element is disposed at the inlet or outlet of the liquid pump to detect the real-time flow of the liquid pumped into or discharged from the pump cavity per unit time, and the liquid pump is closed when the real-time flow is lower than a preset flow.

[0006] As a preferred embodiment of an observation device suitable for obtaining surface sound velocity in polar ice areas, the flow detection component includes a flow switch, which is configured to indicate that the liquid pump is blocked when the real-time flow rate of liquid entering or discharged from the liquid pump per unit time is less than a preset flow rate.

[0007] As a preferred solution for an observation device suitable for obtaining the surface sound velocity of polar ice regions, the pump body includes a pump body and a box body, the pump body is connected to the box body, the pump chamber is defined in the box body, and the observation device suitable for obtaining the surface sound velocity of polar ice regions also includes an exhaust valve, which is connected to the pump chamber.

[0008] As a preferred solution for an observation device suitable for obtaining the surface sound velocity of polar ice regions, the observation device suitable for obtaining the surface sound velocity of polar ice regions also includes a pressure detection gauge, which is arranged on the box to detect the pressure of the pump chamber.

[0009] As a preferred solution of an observation device suitable for obtaining the surface sound velocity of polar ice areas, the observation device suitable for obtaining the surface sound velocity of polar ice areas also includes an inlet valve and an outlet valve, the inlet valve is connected to the pump chamber, and the outlet valve is connected to the pump body.

[0010] As a preferred solution of an observation device suitable for obtaining the surface sound velocity of polar ice regions, the observation device suitable for obtaining the surface sound velocity of polar ice regions also includes a liquid inlet valve, which is arranged at the inlet of the liquid pump and can control whether the liquid can enter the pump chamber.

[0011] As a preferred solution for an observation device suitable for obtaining the surface sound velocity of a polar ice region, the observation device suitable for obtaining the surface sound velocity of a polar ice region also includes a junction box assembly, a first terminal of the junction box assembly is electrically connected to a power supply, a second terminal is electrically connected to the power member and the liquid pump, respectively, and the junction box assembly includes an emergency stop button, and the emergency stop button is arranged on the connecting line between the first terminal and the second terminal.

[0012] As a preferred solution for an observation device suitable for obtaining surface sound velocity in polar ice areas, the junction box assembly includes a time delay relay, which is located on a connecting line between the first terminal and the second terminal, and the time delay relay is configured to disconnect the electrical connection between the first terminal and the second terminal after a preset time period has passed when the real-time flow rate is lower than a preset flow rate.

[0013] The beneficial effects of the present invention are as follows: when measuring the surface sound velocity, the observation device for obtaining the surface sound velocity in polar ice regions disclosed by the present invention first pumps the liquid into the pump chamber, and then the sound velocity meter measures the surface sound velocity of the liquid. The filter element at the inlet of the pump body can block large solids such as drift ice outside the pump chamber, thereby reducing the probability of the sound velocity meter being damaged. The flow detection element can detect the real-time flow rate pumped into or discharged from the pump chamber per unit time. When the real-time flow rate is lower than the preset flow rate, it indicates that solids are blocking the liquid pump. At this time, the liquid pump should be shut down in time, which serves the purpose of protecting the sound velocity meter and the liquid pump, and extending the service life of the observation device for obtaining the surface sound velocity in polar ice regions. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the contents of the embodiments of the present invention and these drawings without paying any creative work.

[0015] Figure 1It is a schematic diagram of an observation device suitable for obtaining the surface sound velocity of a polar ice region provided by a specific embodiment of the present invention in one direction;

[0016] Figure 2 It is a schematic diagram of an observation device suitable for obtaining surface sound velocity in polar ice areas provided by a specific embodiment of the present invention in another direction.

[0017] In the figure:

[0018] 1. Power parts; 2. Liquid pump; 21. Pump body; 22. Box; 3. Flow detection part; 4. Exhaust valve; 5. Inlet valve; 6. Discharge valve; 7. Liquid inlet valve; 8. Junction box assembly; 81. Emergency stop button; 9. Pressure test gauge. DETAILED DESCRIPTION

[0019] In order to make the technical problems solved by the present invention, the technical solutions adopted and the technical effects achieved clearer, the technical solutions of the embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0020] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the system 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" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance. Among them, the terms "first position" and "second position" are two different positions.

[0021] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0022] This embodiment provides an observation device suitable for obtaining the surface sound velocity in polar ice regions, which is installed on a polar icebreaker to detect the depth of the ocean at the location. Figure 1 and Figure 2As shown, the device includes a power piece 1, a liquid pump 2, a sonic velocity meter (not shown in the figure) and a flow detection piece 3. The liquid pump 2 is transmission-connected to the power piece 1. The liquid pump 2 includes a pump body and a filter element (not shown in the figure) located at the inlet of the pump body. A pump cavity is defined in the pump body. The sonic velocity meter is arranged in the pump cavity to detect the surface sound velocity of the seawater in the pump cavity. The filter element can block larger solid particles outside the pump body. The flow detection piece 3 is arranged at the outlet of the liquid pump 2 to detect the real-time flow rate of the seawater discharged from the pump cavity per unit time. The total power of the power piece 1, the liquid pump 2, the sonic velocity meter and the flow detection piece 3 is not more than 750W. The material of the pump body is 316 stainless steel with a total capacity of 14.6L, ​​so as to reduce the corrosion of the pump body itself by seawater as much as possible and extend the service life of the pump body.

[0023] Of course, in other embodiments of the present invention, the flow detection element 3 can also be arranged at the inlet of the liquid pump 2 to detect the real-time flow rate of seawater pumped into the pump chamber per unit time. When the real-time flow rate is less than the preset flow rate, it is considered that the liquid pump 2 is blocked and the liquid pump 2 is turned off.

[0024] The observation device for obtaining the surface sound velocity in polar ice areas provided in the present embodiment first pumps seawater into the pump chamber when measuring the surface sound velocity, and then the sound velocity meter measures the surface sound velocity value of the seawater. The filter element at the inlet of the pump body can block large solids such as drift ice outside the pump chamber, reducing the probability of damage to the sound velocity meter. The flow detection element 3 can detect the real-time flow rate pumped out of the pump chamber per unit time. When the real-time flow rate is lower than the preset flow rate, it indicates that solids are blocking the liquid pump 2. At this time, the liquid pump 2 should be turned off in time to protect the sound velocity meter and the liquid pump 2, thereby extending the service life of the observation device for obtaining the surface sound velocity in polar ice areas.

[0025] Preferably, the observation device suitable for obtaining the surface sound velocity of polar ice areas in this embodiment also includes a controller (not shown in the figure), which is electrically connected to the power component 1, the liquid pump 2, the sound velocity meter and the flow detection component 3. The controller can be a centralized or distributed controller. For example, the controller can be a single single-chip microcomputer or a distributed single-chip microcomputer. The control program can be run in the single-chip microcomputer to control the power component 1, the liquid pump 2, the sound velocity meter and the flow detection component 3 to realize their functions.

[0026] The flow detection part 3 of this embodiment includes a flow switch, and the flow switch is configured to indicate that the pumping pump 2 is blocked when the real-time flow rate of seawater discharged from the pumping pump 2 per unit time is less than the preset flow rate. The flow switch instructs the opening or closing of the observation device suitable for obtaining the surface sound velocity of the polar ice region according to the detected real-time flow rate. When the real-time flow rate is higher or lower than the preset flow rate, the output alarm signal is triggered to be transmitted to the controller of the observation device suitable for obtaining the surface sound velocity of the polar ice region. After the controller obtains the signal, it can make a corresponding indication action to reduce damage to the pumping pump 2 and prevent the pumping pump 2 from being blocked. Of course, in other embodiments of the present invention, the flow detection part 3 can also be a flow meter or other flow detection part 3 capable of detecting flow rate. The flow detection part 3 is used to detect the flow rate entering or discharging the pump body. The flow detection part 3 is electrically connected to the controller. When the actual flow rate detected by the flow detection part 3 is lower than the preset flow rate of the pump body, it is determined that the pump body is blocked; when the actual flow rate detected by the flow detection part 3 is not much different from the preset flow rate of the pump body, it is determined that the pump body is not blocked.

[0027] It should be noted that the surface sound velocity mileage of the sonic velocity meter of the present embodiment is between 1375m / s-1625m / s, the detection deviation is 0.025m / s, and the resolution is 0.001m / s. Of course, in other embodiments of the present invention, the surface sound velocity mileage, detection deviation and resolution of the sonic velocity meter can also be other ranges, which are specifically selected according to actual needs. Under normal working conditions, the flow rate of the liquid pump 2 is greater than or equal to 600L / h, that is, the preset flow rate that should be greater than 600L / h when the liquid pump 2 is actually turned on, once the flow detection component 3 detects that the actual flow rate of the inlet of the liquid pump 2 is lower than the preset flow rate, it indicates that the liquid pump 2 is blocked, and it is necessary to clear the inlet of the liquid pump 2 in time to prevent the inlet of the liquid pump 2 from being completely blocked and damaging the liquid pump 2.

[0028] like Figure 1 As shown, the pump body of this embodiment includes a pump body 21 and a box body 22, the pump body 21 and the box body 22 are connected, and a pump cavity is defined in the box body 22. Figure 1 and Figure 2 As shown, the observation device suitable for obtaining the surface sound velocity of the polar ice area also includes a pressure detection gauge 9 and an exhaust valve 4. The exhaust valve 4 is connected to the pump chamber, and the pressure detection gauge 9 is used to detect the pressure of the pump chamber. Specifically, since the liquid pump 2 will simultaneously pump part of the gas into the pump chamber when pumping seawater into the pump chamber, that is, there are seawater and gas in the pump chamber at the same time, as the gas and seawater increase, the pressure in the pump chamber gradually rises. At this time, if the gas in the pump chamber is not discharged, it will affect the continued entry of seawater into the pump chamber, that is, when the pressure of the pump chamber detected by the pressure detection gauge 9 is higher than the preset pressure, the exhaust valve 4 is opened to discharge the gas in the pump chamber, and the pressure in the pump chamber is reduced.

[0029] like Figure 1 and Figure 2 As shown, the observation device for obtaining the surface sound velocity of the polar ice region in this embodiment also includes an inlet valve 5 and an outlet valve 6. The inlet valve 5 is connected to the high-pressure gas source through a connecting hose, the inlet valve 5 is communicated with the pump chamber, and the outlet valve 6 is communicated with the pump body 21 to discharge the dirty liquid in the box 22. After being used for a period of time, the high-pressure gas enters the box 22 and the pump body 21 from the high-pressure gas source through the connecting hose and the inlet valve 5. The high-pressure gas can make the dirt and impurities adhering to the inner wall fall off and finally be discharged through the outlet valve 6.

[0030] In order to manually control the start and stop of the liquid pump 2, Figure 2 As shown, the observation device for obtaining the surface sound velocity of the polar ice region in this embodiment further includes a liquid inlet valve 7, which is arranged at the inlet of the liquid pump 2 and can control whether seawater can enter the pump chamber. The liquid inlet valve 7 is a manual control valve. When the observation device for obtaining the surface sound velocity of the polar ice region needs maintenance, the liquid inlet valve 7 is manually closed to prevent seawater from entering the pump chamber. Figure 1 The total weight of the structure shown is approximately 125 kg, which is relatively light in overall weight and small in size.

[0031] like Figure 1 As shown, the observation device for obtaining the surface sound velocity of the polar ice region in this embodiment also includes a junction box assembly 8, a first terminal of the junction box assembly 8 is electrically connected to a power source, and can convert the power source into an alternating current with a voltage of 115V, a frequency of 60HZ, and a current less than 5A, or convert the power source into an alternating current with a voltage of 230V, a frequency of 50HZ, and a current less than 5A, and a second terminal is electrically connected to the power member 1 and the liquid pump 2, respectively, as shown in FIG. Figure 2 As shown, the junction box assembly 8 includes an emergency stop button 81 and a time delay relay (not shown in the figure), and the emergency stop button 81 is arranged on the connection line between the first terminal and the second terminal. The time delay relay is located on the connection line between the first terminal and the second terminal, and the time delay relay is configured to disconnect the electrical connection between the first terminal and the second terminal after the real-time flow rate is lower than the preset flow rate for a preset time. Specifically, when the real-time flow rate detected by the flow detection element 3 is lower than the preset flow rate, the time delay relay receives a signal to shut down the liquid pump 2. At this time, the time delay relay disconnects the electrical connection between the first terminal and the second terminal after extending the preset time, and the liquid pump 2 stops continuing to extract seawater.

[0032] The observation device for obtaining the surface sound velocity of the polar ice zone of the present embodiment is mainly used in a multi-beam measurement system, and the multi-beam measurement system is electrically connected to the sound velocity meter. The multi-beam measurement system can derive the depth of the seawater according to the surface sound velocity of the seawater detected by the sound velocity meter. The multi-beam measurement system used in the present embodiment includes a receiving transducer, and the distance between the receiving transducer and the inlet of the liquid pump 2 in the horizontal direction is less than 1m, and the distance in the vertical direction is less than 0.1m, so as to ensure that the sound velocity meter can transmit the sound signal detected by it to the receiving transducer, and then the receiving transducer can convert the received sound signal into an electrical signal, thereby deriving the depth of the seawater. Of course, in other embodiments of the present invention, the distance between the inlet of the liquid pump 2 and the receiving transducer is not limited to the limitation of the present embodiment, and can also be other distances, which are selected according to actual needs.

[0033] After being used for a period of time, fresh water is first drawn into the inlet of the liquid pump 2 to flush the pump body 21 and the casing 22, and then high-pressure gas is introduced into the pump body 21 and the casing 22 through the high-pressure gas source and the air inlet valve 5 so that impurities and fresh water adhering to the inner wall are discharged through the discharge valve 6, thereby reducing the corrosion of the pump body 21 and the casing 22 by seawater.

[0034] Note that the above are only preferred embodiments of the present invention and the technical principles used. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments and substitutions can be made by those skilled in the art without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in more detail through the above embodiments, the present invention is not limited to the above embodiments, and may include more other equivalent embodiments without departing from the concept of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. An observation device suitable for obtaining the surface sound velocity of polar ice areas, characterized in that: include: Power part (1); A liquid pump (2), the liquid pump (2) being drivingly connected to the power member (1), the liquid pump (2) comprising a pump body and a filter element located at the inlet of the pump body, wherein a pump chamber is defined in the pump body; A sound velocity meter, the sound velocity meter is arranged in the pump cavity to detect the surface sound velocity of the liquid in the pump cavity; A flow detection component (3) is arranged at the inlet or outlet of the liquid pump (2) to detect the real-time flow rate of the liquid pumped into or discharged from the pump chamber per unit time. When the real-time flow rate is lower than a preset flow rate, the liquid pump (2) is turned off.

2. The observation device for obtaining the surface sound velocity of polar ice areas according to claim 1 is characterized in that: The flow detection element (3) comprises a flow switch, and the flow switch is configured to indicate that the liquid pump (2) is blocked when the real-time flow rate of liquid entering or exiting the liquid pump (2) per unit time is less than a preset flow rate.

3. The observation device for obtaining the surface sound velocity of polar ice areas according to claim 1, characterized in that: The pump body comprises a pump body (21) and a box body (22), the pump body (21) is connected to the box body (22), the box body (22) defines the pump chamber, and the observation device suitable for obtaining the surface sound velocity of the polar ice region also comprises an exhaust valve (4), and the exhaust valve (4) is connected to the pump chamber.

4. The observation device for obtaining the surface sound velocity of polar ice areas according to claim 3 is characterized in that: The observation device suitable for obtaining the surface sound velocity of the polar ice region further comprises an inlet valve (5) and an outlet valve (6), wherein the inlet valve (5) is connected to the pump chamber, and the outlet valve (6) is connected to the pump body (21).

5. The observation device for obtaining the surface sound velocity of polar ice areas according to claim 3 is characterized in that: The observation device suitable for obtaining the surface sound velocity of the polar ice region also includes a pressure detection gauge (9), and the pressure detection gauge (9) is arranged on the box (22) to detect the pressure of the pump chamber.

6. The observation device for obtaining the surface sound velocity of polar ice areas according to claim 1, characterized in that: The observation device suitable for obtaining the surface sound velocity of the polar ice region further comprises a liquid inlet valve (7), wherein the liquid inlet valve (7) is arranged at the inlet of the liquid pump (2) and is capable of controlling whether liquid can enter the pump chamber.

7. The observation device for obtaining the surface sound velocity in polar ice regions according to any one of claims 1 to 6, characterized in that: The observation device suitable for obtaining the surface sound velocity of the polar ice region also includes a junction box assembly (8), a first terminal of the junction box assembly (8) being electrically connected to a power source, and a second terminal being electrically connected to the power member (1) and the liquid pump (2) respectively, and the junction box assembly (8) including an emergency stop button (81), and the emergency stop button (81) being arranged on a connection line between the first terminal and the second terminal.

8. The observation device for obtaining the surface sound velocity of polar ice areas according to claim 7, characterized in that: The junction box assembly (8) comprises a time delay relay, which is located on the connection line between the first terminal and the second terminal, and the time delay relay is configured to disconnect the electrical connection between the first terminal and the second terminal after a preset time period has passed when the real-time flow rate is lower than a preset flow rate.

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