A water sampling device for a ship

Abstract

The utility model discloses a water sample sampling device for ship belongs to sampling device technical field, specifically includes sampling box, and the outside of sampling box is equipped with the water suction pipe, and the inside is equipped with water suction pump, controller, flowmeter, sampling bottle and component collection device, the water suction pipe is connected with water suction pump, and water suction pump is connected with flowmeter, and flowmeter is connected with sampling bottle, and sampling bottle is connected with component collection device, component collection device includes a plurality of different automatic ration bottle and measuring cup of diameter, the utility model discloses can enlarge the capacity range of sampling and guarantee the precision of sampling, reduce the error when automatic measurement, and the number and the size of ration cylinder diameter of automatic ration bottle can be designed according to the work need, reach wide range high accuracy sampling. Can automatic control, need not artificial operation, and quantitative precision is high, prevents the secondary pollution of sampling, reduces the sampling workload, solves the technical problem that the current water sample sampling device for ship cannot accurately sample.

Description

Technical Field

[0001] This utility model belongs to the field of sampling device technology, specifically relating to a ship water sampling device. Background Technology

[0002] When sampling underwater, operators typically need to navigate a small boat on the surface to collect samples. Traditional samplers use a controller to automatically pump water and then measure the sample using a flow meter. Since the sampler uses a single sampling bottle, it needs to be brought aboard the boat to use a measuring cup for precise sampling. This presents several challenges: firstly, the harsh environment on board makes measuring cup sampling susceptible to environmental influences and secondary contamination of the sample; secondly, the swaying motion on the boat makes measuring cup sampling difficult; and thirdly, multiple sampling sessions increase workload. Furthermore, a single sampling bottle cannot meet the requirements for accurate sampling over a wide area. Summary of the Invention

[0003] The technical problem solved by this utility model is that existing underwater ship water sampling devices have low sampling accuracy and a small precise sampling range.

[0004] Technical solution: To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0005] A shipboard water sampling device includes a sampling box. The sampling box has an external suction pipe and an internal suction pump, controller, flow meter, sampling bottle, and fractionation acquisition device. The suction pipe is connected to the suction pump, the suction pump is connected to the flow meter, the flow meter is connected to the sampling bottle, and the sampling bottle is connected to the fractionation acquisition device. The fractionation acquisition device includes several automatic quantitative bottles and measuring cups of different diameters. A one-way solenoid valve is installed at the outer end of the suction pipe, and the suction pump, flow meter, and one-way solenoid valve are connected to the controller.

[0006] Furthermore, the automatic metering bottle includes a metering cylinder, a piston, and a shaft. The piston is slidably connected to the inside of the metering cylinder, and the piston is sealed to the metering cylinder. A shaft is fixedly connected to the center of the outer end face of the piston. Two sets of symmetrical and evenly arranged teeth are provided on the shaft. A brake housing, a micro motor, and a first gear are provided at the bottom of the metering cylinder. The brake housing is fixedly connected to the bottom of the metering cylinder, and a micro motor is fixedly connected inside the brake housing. A first gear is fixedly connected to the shaft of the micro motor, and the first gear connects to a set of teeth on the shaft. A second gear is also provided inside the brake housing, and the second gear connects to another set of teeth on the shaft. The first and second gears are symmetrically arranged. The micro motor is connected to a controller. A limiting plate is provided at the end of the shaft, and a displacement sensor is provided on the limiting plate. The upper part of the metering cylinder has an inlet pipe connected to the sampling bottle and an outlet pipe connected to the measuring cup. A first solenoid valve is provided on the inlet pipe. A second solenoid valve is provided on the outlet pipe. The displacement sensor, the first solenoid valve, and the second solenoid valve are all connected to the controller. The micro motor is a reversible asynchronous motor.

[0007] Furthermore, both the first solenoid valve and the second solenoid valve are one-way valves.

[0008] Furthermore, the measuring cup is provided with a cup lid, the cup lid has a through hole, and a detachable connector for connecting to the liquid outlet pipe is provided in the through hole.

[0009] Furthermore, the sampling box is cylindrical; a cylindrical mounting post is provided in the middle of the sampling box, and the sampling bottle is circularly positioned on the upper part of the sampling box and fixed to the mounting post; a tray fixed to the mounting post is provided below the sampling bottle, and several automatic metering bottles are placed on the tray; the inlet pipe is connected to the bottom of the sampling bottle; the water pump and controller are located on the mounting post at the bottom of the sampling box. The measuring cup is located on the inner wall of the bottom of the sampling box.

[0010] Furthermore, the bottom of the sampling box is provided with an openable bottom cover.

[0011] Furthermore, the sampling box is provided with an installation hole through which the water suction pipe passes. A connector is provided inside the installation hole, which divides the water suction pipe into inner and outer parts. The inner water suction pipe is connected to the water suction pump.

[0012] Furthermore, the controller is equipped with a GPS locator and a wireless transmission module.

[0013] Beneficial effects: Compared with the prior art, the present invention has the following advantages:

[0014] (1) This utility model is equipped with a sampling bottle and an automatic quantitative bottle. Compared with the traditional underwater sampler, the sampling bottle is an over-sampling device. The automatic quantitative bottle can accurately measure the liquid according to the sampling amount and collect it into the measuring cup. The whole process can be automatically controlled without human operation. Moreover, the quantitative accuracy is high, and there is no need to use the measuring cup again for accurate measurement, which prevents secondary pollution of the sample and reduces the sampling workload.

[0015] (2) The present invention can expand the sampling capacity range and ensure the sampling accuracy by setting up several automatic quantitative bottles with different diameters, and reduce the error during automatic measurement. The number of automatic quantitative bottles and the diameter of the quantitative cylinder can be designed according to the work needs to achieve wide-range and high-precision sampling.

[0016] (3) The controller of this utility model is equipped with a GPS positioning device, which can measure the water depth and orientation of the sampler. In addition, the controller is equipped with a wireless transmission module, which can send the controller's information to the control terminal on the ground. The control terminal can automatically control the sampler to work. The controller is also equipped with a data storage disk, which can be used to store data in real time to prevent data loss caused by the wireless signal terminal. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a front view cross-sectional structural diagram of an automatic dispensing bottle;

[0019] Figure 3 This is a side view cross-sectional structural diagram of an automatic dispensing bottle. Detailed Implementation

[0020] The present invention will be further illustrated below with reference to specific embodiments. The embodiments are implemented based on the technical solution of the present invention. It should be understood that these embodiments are only used to illustrate the present invention and are not intended to limit the scope of the present invention.

[0021] like Figure 1 As shown, a shipboard water sampling device includes a sampling box 1. The sampling box 1 has an external suction pipe 2 and an internal suction pump 3, controller 4, flow meter 5, sampling bottle 6, and fractionation acquisition device. The suction pipe 2 is connected to the suction pump 3, the suction pump 3 is connected to the flow meter 5, the flow meter 5 is connected to the sampling bottle 6, and the sampling bottle 6 is connected to the fractionation acquisition device. The fractionation acquisition device includes several automatic quantitative bottles 7 and measuring cups 8 of different diameters. A one-way solenoid valve 9 is provided at the outer end of the suction pipe 2. The suction pump 3, flow meter 5, and one-way solenoid valve 9 are connected to the controller 4.

[0022] This invention features a sampling bottle with a capacity greater than that of several automatic quantitative bottles. The principle is to first use a water pump to draw liquid into the sampling bottle, then use automatic quantitative bottles of different diameters for precise quantification, and finally dispense the liquid into a measuring cup for final collection. The flow meter controls the sampling volume of the water pump, ensuring it remains within the capacity range of the sampling bottle. Because the water pump draws water quickly, the water flow through the flow meter is also rapid, achieving a fast sampling effect. However, this results in lower accuracy and cannot meet the requirements for small-dose sampling.

[0023] like Figure 2 and 3 As shown, the automatic metering bottle 7 includes a metering cylinder 71, a piston 72, and a shaft 73. The piston 72 is slidably connected to the inside of the metering cylinder 71, and the piston 72 is sealed to the metering cylinder 71. The shaft 73 is fixedly connected to the center of the outer end face of the piston 72. Two sets of symmetrical and evenly arranged teeth 75 are provided on the shaft 73. A brake housing 77, a micro motor 78, and a first gear 79 are provided at the bottom of the metering cylinder 71. The brake housing 77 is fixedly connected to the bottom of the metering cylinder 71, and the micro motor 78 is fixedly connected inside the brake housing 77. The first gear 79 is fixedly connected to the shaft of the micro motor 78, and the first gear 79 is connected to one set of teeth 75 on the shaft 73. A second gear 74 is also provided inside the brake housing 77, and the second gear 74 is connected to another set of teeth 75 on the shaft 73. The first gear 79 and the second gear 74 are symmetrically arranged. The micro motor 78 is connected to the controller 4.

[0024] A limiting plate 76 is provided at the end of the shaft 73, and a displacement sensor 10 is provided on the limiting plate 76. The displacement sensor 10 is connected to the controller 4 to measure the displacement of the shaft 73. The function of the limiting plate is to prevent excessive movement of the shaft. In addition, the displacement sensor is provided on the limiting plate for easy installation, and the displacement is measured with the brake housing as the measurement reference surface.

[0025] The micro motor 78 is an asynchronous motor that can rotate in both directions.

[0026] The principle of this automatic metering bottle with high precision metering is based on the use of a micro motor to control the height of the piston's movement, which can be measured by a displacement sensor.

[0027] This invention employs several automatic metering bottles with different diameters to reduce errors. For example, in a sampling range of 50ml to 500ml, with the same bottle diameter, the height fluctuation range within 50ml is much smaller than that within 400ml to 500ml. A smaller height fluctuation range means a smaller shaft displacement range, increasing measurement difficulty and thus measurement error. Furthermore, given the limited height of the sampling box, it's impossible to make the automatic metering bottles very tall. Therefore, this invention uses automatic metering bottles with different diameters to meet the requirement of accurate height measurement. For example, in a sampling range of 50ml to 500ml, three automatic metering bottles are used, with capacities of ≤50ml, ≤150ml, and ≤500ml respectively. The phased arrangement of the automatic metering bottles results in a larger displacement range in height, a larger piston movement range, a larger measurement range for the displacement sensor, and higher accuracy. The controller program can be programmed to set the relationship between the displacement sensor height and capacity. The liquid volume can then be measured using the displacement sensor.

[0028] The upper part of the measuring cylinder 71 is equipped with an inlet pipe 711 connected to the sampling bottle 6 and an outlet pipe 712 connected to the measuring cup 8. A first solenoid valve 713 is installed on the inlet pipe 711, and a second solenoid valve 714 is installed on the outlet pipe 712. Both the first solenoid valve 713 and the second solenoid valve 714 are connected to the controller 4. Both the first solenoid valve 713 and the second solenoid valve 714 are one-way valves.

[0029] The measuring cup 8 of this invention is provided with a cup lid 81, and the cup lid 81 has a through hole. A detachable connector for connecting to the liquid outlet pipe 712 is provided in the through hole. After sampling, the measuring cup 8 can be directly taken out from the sampling box 1 without the need to use the measuring cup 8 for precise measurement again, thus preventing secondary contamination of the sample and reducing the sampling workload.

[0030] To minimize the volume of the sampling box 1 and facilitate sampling, the sampling box 1 is cylindrical, which reduces water flow resistance. A cylindrical mounting post 11 is located in the center of the sampling box 1. The sampling bottle 6 is annularly positioned on the upper part of the sampling box 1 and fixed to the mounting post 11. A tray 12, fixed to the mounting post 11, is located below the sampling bottle 6. Several automatic metering bottles 7 are placed on the tray 12, and the inlet pipe 711 is connected to the bottom of the sampling bottle 6. Placing the automatic metering bottles at the bottom of the sampling bottles allows for negative pressure sampling using the weight of the liquid, facilitating piston movement, without requiring a certain liquid level inside the sampling bottle. The tray 12 has through holes for easy installation of the automatic metering bottles 7.

[0031] The water pump 3 and controller 4 are mounted on the mounting post 11 at the bottom of the sampling box 1. The sampling bottle, automatic metering bottle and water pump are distributed along the height of the sampling box, without any imbalance, to ensure the stability of the sampling box underwater.

[0032] Measuring cup 8 is placed on the inner wall at the bottom of sampling box 1.

[0033] The sampling box 1 of this utility model is provided with an openable bottom cover 13 for easy removal of the measuring cup.

[0034] The sampling box 1 of this utility model is provided with an installation hole, through which the water suction pipe 2 passes. A connector 14 is provided in the installation hole, which divides the water suction pipe 2 into inner and outer parts. The inner water suction pipe 2 is connected to the water suction pump 3, and the outer water suction pipe 2 can be replaced.

[0035] The controller 4 of this invention is equipped with a GPS locator, which can measure the water depth and orientation of the sampler. Additionally, the controller 4 has a wireless transmission module, which can send information from the controller 4 to a ground-based control terminal, allowing the control terminal to automatically control the sampler's operation. The controller 4 also has a data storage disk for real-time data storage, preventing data loss due to wireless signal terminals.

[0036] The working principle of this invention is as follows: The operator inputs the required liquid volume into the control terminal, selects an appropriately sized automatic quantitative bottle for volumetric sampling, and then fixes the measuring cup inside the sampling box and connects it to the outlet pipe. The controller starts the one-way solenoid valve and the suction pump to initiate sampling. Then, it controls the first solenoid valve to open, and the micro-motor starts the piston to extract the liquid. A displacement sensor measures the liquid volume. When the preset volume is reached, the controller stops the micro-motor, closes the first solenoid valve, opens the second solenoid valve, and then starts the micro-motor in reverse to push the liquid into the measuring cup. The operator then removes the sampling box, opens the bottom cover, and takes out the measuring cup.

[0037] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A shipboard water sampling device, characterized in that: The sample box (1) includes a water suction pipe (2) on the outside and a water suction pump (3), a controller (4), a flow meter (5), a sampling bottle (6) and a component acquisition device inside. The water suction pipe (2) is connected to the water suction pump (3), the water suction pump (3) is connected to the flow meter (5), the flow meter (5) is connected to the sampling bottle (6), and the sampling bottle (6) is connected to the component acquisition device. The component acquisition device includes several automatic quantitative bottles (7) and measuring cups (8) of different diameters. The outer end of the water suction pipe (2) is equipped with a one-way solenoid valve (9), and the water suction pump (3), the flow meter (5) and the one-way solenoid valve (9) are connected to the controller (4).

2. The shipboard water sampling device according to claim 1, characterized in that: The automatic metering bottle (7) includes a metering cylinder (71), a piston (72) and a shaft (73); the piston (72) is slidably connected inside the metering cylinder (71), the piston (72) is sealed to the metering cylinder (71), and the shaft (73) is fixedly connected to the center of the outer end face of the piston (72), and two sets of symmetrical and evenly arranged teeth (75) are provided on the shaft (73).

3. The shipboard water sampling device according to claim 2, characterized in that: The bottom of the metering cylinder (71) is provided with a brake housing (77), a micro motor (78), and a first gear (79). The brake housing (77) is fixedly connected to the bottom of the metering cylinder (71). The micro motor (78) is fixedly connected inside the brake housing (77). The first gear (79) is fixedly connected to the shaft of the micro motor (78). The first gear (79) is connected to a set of teeth (75) on the shaft (73). The brake housing (77) is also provided with a second gear (74). The second gear (74) is connected to another set of teeth (75) on the shaft (73). The first gear (79) and the second gear (74) are symmetrically arranged. The micro motor (78) is connected to the controller (4).

4. The shipboard water sampling device according to claim 3, characterized in that: The end of the shaft (73) is provided with a limiting plate (76), and a displacement sensor (10) is provided on the limiting plate (76); the upper part of the metering cylinder (71) is provided with an inlet pipe (711) connected to the sampling bottle (6) and an outlet pipe (712) connected to the measuring cup (8); a first solenoid valve (713) is provided on the inlet pipe (711); a second solenoid valve (714) is provided on the outlet pipe (712); the displacement sensor (10), the first solenoid valve (713) and the second solenoid valve (714) are all connected to the controller (4); the micro motor (78) is an asynchronous motor that can rotate in both directions.

5. The shipboard water sampling device according to claim 4, characterized in that: Both the first solenoid valve (713) and the second solenoid valve (714) are one-way valves.

6. The shipboard water sampling device according to claim 4, characterized in that: The measuring cup (8) is provided with a cup lid (81), and the cup lid (81) is provided with a through hole, and a detachable connector connected to the liquid outlet pipe (712) is provided in the through hole.

7. The shipboard water sampling device according to claim 1, characterized in that: The sampling box (1) is cylindrical; a cylindrical mounting column (11) is set in the middle of the sampling box (1), and the sampling bottle (6) is ring-shaped and set on the upper part of the sampling box (1) and fixed on the mounting column (11); a tray (12) fixed on the mounting column (11) is set below the sampling bottle (6), and several automatic quantitative bottles (7) are set on the tray (12); the liquid inlet pipe (711) is connected to the bottom of the sampling bottle (6); the water pump (3) and the controller (4) are set on the mounting column (11) at the bottom of the sampling box (1); the measuring cup (8) is set on the inner wall at the bottom of the sampling box (1).

8. The shipboard water sampling device according to claim 5, characterized in that: The bottom of the sampling box (1) is provided with an openable bottom cover (13).

9. The shipboard water sampling device according to claim 1, characterized in that: The sampling box (1) is provided with an installation hole, through which the water suction pipe (2) passes. A connector (14) is provided inside the installation hole. The connector (14) divides the water suction pipe (2) into two parts, an inner and an outer part. The inner water suction pipe (2) is connected to the water suction pump (3).

10. The shipboard water sampling device according to claim 1, characterized in that: The controller (4) is equipped with a GPS locator and a wireless transmission module.

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