Device for evaluating saline-light boundary effect of tide gate in situ

Abstract

A device for evaluating the saline-light boundary effect of a tide gate in situ comprises a water tank, a measuring mechanism and a fixing mechanism, the water tank is used for collecting water, the measuring mechanism measures the conductivity of water in the water tank and transmits measured data to a tide gate monitoring system, and the fixing mechanism fixes the whole device on the shore.

Description

Technical Field

[0001] The utility model relates to the technical field of salt-fresh boundary effect evaluation of tide gates, in particular to a device for in-situ evaluation of salt-fresh boundary effect of tide gates. Background Art

[0002] Inland rivers in coastal areas are directly connected to the ocean and are greatly affected by changes in ocean tides. In order to prevent seawater backflow and reduce flood disasters, tide gates have become an important flood control measure. Tide gates have multiple functions such as blocking tides, storing fresh water, preventing seawater from flowing upstream, and discharging flood water and drainage.

[0003] The water quality indicators for evaluating the effect of sluice gates mainly include water temperature, pH, conductivity, dissolved oxygen, redox potential, nitrate, nitrite, ammonium salt, COD, etc. The effect of fresh-salt water boundary can be measured by monitoring the conductivity before and after the sluice gate. At present, researchers mostly use manual sampling and then measurement or model fitting prediction to evaluate the effect of sluice gates, which is a cumbersome process. Utility Model Content

[0004] In order to solve the above problems, the utility model provides a device for in-situ evaluating the salt-fresh water boundary effect of a tide gate, which can realize rapid evaluation of the salt-fresh water boundary effect and effectively improve the reliability of the operation of the tide gate.

[0005] The technical solution adopted by the utility model is: a device for in-situ evaluation of the salt-fresh water boundary effect of a tide gate, characterized in that it comprises a water tank for collecting water, a measuring mechanism and a fixing mechanism for measuring the water conductivity in the water tank, the fixing mechanism fixes the water tank and the measuring mechanism on the shore, the water tank is provided with a water inlet hole, the measuring mechanism extends into the water tank, and is electrically connected to a rear data processing unit through a wire.

[0006] Preferably, a plurality of water inlet holes are evenly arranged on the four side walls of the water tank.

[0007] Preferably, a filter screen is provided on the inner wall of the water tank.

[0008] Preferably, the measuring mechanism comprises three water conductivity probes arranged on the top of the water tank, and the measuring ends of the three water conductivity probes all pass through the filter screen and extend into the water tank.

[0009] Preferably, the water conductivity probe is arranged on the top of the water tank through a rubber gasket.

[0010] Preferably, the fixing mechanism comprises a steel bracket and expansion anchor bolts, one end of the steel bracket is fixed to the water tank, and the other end is fixed to the coastal structure through the expansion anchor bolts.

[0011] Preferably, the water tank is installed at a height of 0.1 to 1 m below the lowest water level and 100 to 200 m away from the tide gate.

[0012] The beneficial effects achieved by the utility model are: by setting the measuring mechanism, the measuring accuracy is high, the measuring result is accurate and reliable; the fixing mechanism can effectively resist the impact of water, and the use is safe and reliable. The utility model can realize in-situ continuous sampling and measurement of water conductivity, and effectively evaluate the salt-fresh separation effect of the tide gate. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the structure of the utility model;

[0014] Figure 2 is a schematic diagram of the structure of the filter;

[0015] Figure 3 This is a schematic diagram of the structure of the water conductivity probe embedded in the water tank;

[0016] In the figure: 1- water tank; 11- water inlet; 2- water conductivity probe; 3- rubber gasket; 4- wire; 5- steel bracket; 6- expansion anchor bolt; 7- filter screen; 71- conductivity probe through hole. DETAILED DESCRIPTION

[0017] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] like Figure 1-3 As shown, a device for in-situ evaluation of the fresh-salt boundary effect of a tide gate of the utility model comprises a water tank 1, a measuring mechanism and a fixing mechanism, wherein: the water tank 1 is used to collect water, the measuring mechanism measures the conductivity of the water in the water tank 1 and transmits the measured data to the tide gate monitoring system, and the fixing mechanism fixes the entire device to the shore.

[0019] In this embodiment, a water inlet hole 11 is provided on the water tank 1 , and the measuring mechanism extends into the water tank 1 and is electrically connected to a rear data processing unit via a wire 4 .

[0020] In this embodiment, a plurality of water inlet holes 11 are evenly arranged on the four side walls of the water tank 1 .

[0021] Combination Figure 2 As shown, in this embodiment, a filter screen 7 (using a stainless steel filter screen) is arranged on the inner wall of the water tank 1. The shape of the filter screen 7 is similar to the shape of the water tank 1, but slightly smaller in size. The filter screen 7 is closely attached to the inner wall of the water tank 1 and is used to filter the water entering the water tank 1 from the water inlet 11. The filter screen 7 is provided with a conductivity probe through hole 71.

[0022] In the device of the utility model, all materials in contact with water are Q235A steel and 316 stainless steel, and anti-corrosion treatment is performed on the inner and outer surfaces, which can effectively resist the salinity change of water on both sides of the tide gate, and the used materials will not cause secondary pollution to the water quality.

[0023] In this embodiment, the measuring mechanism includes three water conductivity probes 2 arranged on the top of the water tank 1, and the measuring ends of the three water conductivity probes 2 all pass through the conductivity probe through holes 71 on the filter 7 and extend into the water tank 1. The use of three water conductivity probes 2 has high measurement accuracy and accurate and reliable measurement results.

[0024] In this embodiment, the water conductivity probe 2 is arranged on the top of the water tank 1 through a rubber gasket 3 .

[0025] In this embodiment, the fixing mechanism includes a steel bracket 5 and an expansion anchor bolt 6. One end of the steel bracket 5 is fixed to the water tank 1, and the other end is fixed to the shore structure through the expansion anchor bolt 6. The fixing mechanism can fix the water tank 1 and the measuring mechanism to the shore structure, can effectively resist the impact of water, and is safe and reliable to use.

[0026] The device of the utility model is placed as a whole on the inner river and outer river sides of the tide gate, and can realize in-situ continuous sampling and measurement of water conductivity, and effectively evaluate the salt-fresh separation effect of the tide gate.

[0027] When in use, the device is fixed to the coastal structures on both sides of the inner river and outer river of the tide gate through the steel bracket 5 and the expansion anchor bolt 6, and the installation height is 0.1-1m below the lowest water level and 100-200m away from the tide gate; the river water of the inner river and the outer river flows into the water tank 1 through the water inlet hole 11, and the stainless steel mesh 7 filters the suspended matter in the water, so that the river water in the water tank 1 is suitable for measuring the conductivity; the water conductivity probe 2 embedded in the water tank collects the conductivity value of the river water in the water tank 1, and transmits it to the subsequent analysis and monitoring system through the wire 4, and realizes the dynamic monitoring of the salt-fresh separation effect of the tide gate by comparing the conductivity changes of the media on both sides.

[0028] It should be noted that the description of the above technical solutions is exemplary, and this specification can be embodied in different forms and should not be interpreted as being limited to the technical solutions set forth herein. On the contrary, providing these descriptions will make the disclosure of the utility model thorough and complete, and will fully convey the scope disclosed in this specification to those skilled in the art. In addition, the technical solution of the utility model is limited only by the scope of the claims.

[0029] Finally, it should be pointed out that the above embodiments are only representative examples of the present utility model. Obviously, the present utility model is not limited to the above embodiments, and there are many variations. Any simple modification, equivalent changes and modifications made to the above embodiments based on the technical essence of the present utility model shall be considered to belong to the protection scope of the present utility model.

Claims

1. A device for in-situ evaluation of the salt-fresh water boundary effect of a tidal gate, characterized in that: It includes a water tank for collecting water, a measuring mechanism and a fixing mechanism for measuring the conductivity of water in the water tank. The fixing mechanism fixes the water tank and the measuring mechanism on the shore. The water tank is provided with a water inlet hole. The measuring mechanism extends into the water tank and is electrically connected to a rear data processing unit through a wire.

2. The device for in-situ evaluation of the fresh-salt boundary effect of a tidal gate according to claim 1, characterized in that: A plurality of water inlet holes are evenly arranged on the four side walls of the water tank.

3. The device for in-situ evaluation of the fresh-salt boundary effect of a tidal gate according to claim 1, characterized in that: The inner wall of the water tank is provided with a filter net.

4. The device for in-situ evaluation of the fresh-salt boundary effect of a tidal gate according to claim 1, characterized in that: The measuring mechanism comprises three water conductivity probes arranged on the top of the water tank, and the measuring ends of the three water conductivity probes all pass through the filter screen and extend into the water tank.

5. The device for in-situ evaluation of the salt-fresh water boundary effect of a tidal gate according to claim 4, characterized in that: The water conductivity probe is arranged on the top of the water tank through a rubber gasket.

6. The device for in-situ evaluation of the fresh-salt boundary effect of a tidal gate according to claim 1, characterized in that: The fixing mechanism comprises a steel bracket and expansion anchor bolts. One end of the steel bracket is fixed to the water tank, and the other end is fixed to the coastal structure through the expansion anchor bolts.

7. The device for in-situ evaluation of the fresh-salt boundary effect of a tidal gate according to claim 1, characterized in that: The water tank is installed at a height of 0.1 to 1 m below the lowest water level and 100 to 200 m away from the tide gate.

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