CN-122016408-A - Intelligent hydraulic engineering safety monitoring sampling device and sampling method thereof

CN122016408ACN 122016408 ACN122016408 ACN 122016408ACN-122016408-A

Abstract

The invention relates to the technical field of water conservancy sampling, in particular to an intelligent hydraulic engineering safety monitoring sampling device and a sampling method thereof, comprising a sampler and a supporting sleeve fixed in the sampler, wherein a movable rod axially slides in the supporting sleeve, a sampling disc is rotatably arranged at the end part of the movable rod, and a water depth sensor is arranged at the bottom of the sampling disc and used for detecting the sampling depth of the sampling disc; the sampling device comprises a sampling disc, a sealing ring, a delay sampling mechanism, a rotation adjusting mechanism and a delay sampling mechanism, wherein the sampling disc is rotatably and hermetically installed on the sealing ring, a conveying pipe is connected to the side wall of the sealing ring, a conduction assembly connected with the sealing ring is arranged on the sampling disc, the delay sampling mechanism is arranged on a movable rod and connected with the sealing ring, the movable rod is also provided with the rotation adjusting mechanism connected with the delay sampling mechanism, and under the action of the delay sampling mechanism, the rotation of the sampling disc can be controlled through the rotation adjusting mechanism so as to adjust the conduction state of the conduction assembly, so that a sampling pipeline is pre-washed and then sampled.

Inventors

GAO JIANMIN
WANG WEI
JIN HONGQING
LIU XUEDONG
ZHANG YANG
SU SHIWEN

Assignees

连云港市水旱灾害防御调度指挥中心(连云港市水利信息化管理中心)

Dates

Publication Date: 20260512
Application Date: 20260326

Claims (10)

1. An intelligent hydraulic engineering safety monitoring sampling device, includes: The sampling device comprises a sampler and a supporting sleeve fixed in the sampler, wherein a movable rod axially slides in the supporting sleeve, a sampling disc is rotatably arranged at the end part of the movable rod, and a water depth sensor is arranged at the bottom of the sampling disc and used for detecting the sampling depth of the sampling disc; Characterized by further comprising: The sealing ring is rotationally and hermetically arranged on the sampling disc, a conveying pipe is connected to the side wall of the sealing ring, and a conducting assembly connected with the sealing ring is arranged on the sampling disc; The delay sampling mechanism is arranged on the movable rod and is connected with the sealing ring, the movable rod is further provided with a rotation adjusting mechanism connected with the delay sampling mechanism, and the rotation adjusting mechanism can drive the sampling disc to intermittently rotate when the delay sampling mechanism moves so as to adjust the conduction state of the conduction assembly and the delay sampling mechanism.
2. The intelligent hydraulic engineering safety monitoring sampling device according to claim 1, wherein the conducting assembly comprises a conducting hole formed on the sealing ring, an air inlet hole in conducting fit with the conducting hole is formed at the top of the sampling disc, a feeding hole in conducting fit with the conveying pipe is formed at the side wall of the sampling disc, a discharging hole is formed at the bottom of the sampling disc, and a plurality of air inlet holes, feeding holes and discharging holes are distributed at equal intervals in circumference.
3. The intelligent hydraulic engineering safety monitoring sampling device according to claim 1, wherein the delay sampling mechanism comprises a fixed plate fixed on the movable rod, a piston cylinder is fixed on the fixed plate, and a piston disc is connected in a sliding and sealing manner in the piston cylinder; the device also comprises a pushing component and a sucking component which are arranged on the fixed plate and connected with the piston disc.
4. The intelligent hydraulic engineering safety monitoring sampling device according to claim 3, wherein the pushing assembly comprises a cylinder fixed on the fixed plate and inserted into the piston cylinder, a push rod penetrating through the piston disc is fixed on the telescopic end of the cylinder, and an upper pushing ring and a lower pushing ring which are in interference fit with the piston disc are fixed on the push rod.
5. The intelligent hydraulic engineering safety monitoring sampling device according to claim 4, wherein the pumping assembly comprises a conduit and a pressure relief tube fixed on the side wall of the piston cylinder, and the conduit is fixedly connected with the sealing ring and communicated with the through hole.
6. The intelligent hydraulic engineering safety monitoring sampling device according to claim 4, wherein the rotation adjusting mechanism comprises a supporting plate fixed on the movable rod, symmetrically distributed guide posts are fixed on the supporting plate, and guide plates are slidably mounted on the guide posts; The guide assembly and the driven assembly are arranged on the guide plate and connected with the push rod.
7. The intelligent hydraulic engineering safety monitoring and sampling device according to claim 6, wherein the guiding assembly comprises a chute and a vertical groove formed on the guiding plate, a movable plate is fixed at the end of the push rod, and a limit column which is in sliding fit with the chute and the vertical groove is fixed on the movable plate.
8. The intelligent hydraulic engineering safety monitoring sampling device according to claim 7, wherein the driven component comprises a rotating sleeve fixed on the sampling disc and sleeved on the movable rod, a ratchet wheel is fixed on the rotating sleeve, and a ratchet plate meshed with the ratchet wheel is fixed on the guide plate.
9. The intelligent hydraulic engineering safety monitoring sampling device according to claim 1, wherein a plurality of circulating chambers and sampling chambers distributed at equal intervals are formed in the sampling plate, and the circulating chambers and the sampling chambers are distributed alternately.
10. An intelligent hydraulic engineering safety monitoring sampling method, which adopts the intelligent hydraulic engineering safety monitoring sampling device as set forth in any one of claims 1-9, and is characterized by comprising the following steps: the method comprises the steps that firstly, a sampler is placed at a position to be sampled, and a movable rod is controlled to extend out of a supporting sleeve, so that a sampling disc extends into a water sample; When the water depth sensor detects that the sampling disc reaches the designated depth, the movable rod stops moving, and at the moment, the sampling mechanism is delayed to move to drive the rotary adjusting mechanism to move, so that the sampling disc rotates by a specific angle; Step three, the sampling disc controls the corresponding circulating chamber and the sampling chamber to be communicated with the conveying pipe through the communicating component; under the action of the delay sampling mechanism, the water sample is firstly sucked into the circulating cavity for prewashing, and then is sucked into the sampling cavity for sampling.

Description

Intelligent hydraulic engineering safety monitoring sampling device and sampling method thereof Technical Field The invention relates to the technical field of water conservancy safety sampling, in particular to an intelligent water conservancy project safety monitoring sampling device and a sampling method thereof. Background The hydraulic engineering is an important infrastructure for developing and utilizing water resources, preventing and treating water diseases and guaranteeing water supply safety. The water quality monitoring is mainly used for guaranteeing water safety, plays an indirect supporting role on the structural safety of hydraulic engineering, and if corrosive risks exist in water quality, immeasurable negative effects on the hydraulic engineering are necessarily caused. The change rule of the distribution parameters of corrosive pollutants in the water body can be mastered by carrying out fixed-point sampling and analysis on water layers with different depths, so that scientific basis is provided for preventing and controlling the corrosive water pollution. In water quality monitoring of hydraulic engineering, stratified sampling is a basic requirement. Because the water body often has temperature layering, dissolved oxygen layering and pollutant concentration difference at different depths, the real condition of corrosive substances contained in the water body cannot be reflected by only collecting the surface water sample, and the water layer with a specific depth must be accurately sampled. The sampling mode which is widely used at present is a pumping type sampling system which pumps water samples with preset different depths into a water surface container through a water pump and a long-distance conveying pipeline, however, when the water samples with different depths are pumped, the water samples remained on the inner wall of the pipeline in the previous sampling process can be inevitably mixed into the samples which are pumped later. For general water quality index detection, the influence of the residual pollution can be acceptable, but for corrosive detection projects with extremely high safety requirements, the residual trace amount of the previous water sample in the pipeline is enough to cause the distortion of the detection result. Disclosure of Invention The invention aims to provide an intelligent hydraulic engineering safety monitoring sampling device and a sampling method thereof, which are used for solving the problems in the background technology. In order to achieve the above purpose, the present invention provides the following technical solutions: an intelligent hydraulic engineering safety monitoring sampling device, includes: The sampling device comprises a sampler and a supporting sleeve fixed in the sampler, wherein a movable rod axially slides in the supporting sleeve, a sampling disc is rotatably arranged at the end part of the movable rod, and a water depth sensor is arranged at the bottom of the sampling disc and used for detecting the sampling depth of the sampling disc; Further comprises: The sealing ring is rotationally and hermetically arranged on the sampling disc, a conveying pipe is connected to the side wall of the sealing ring, and a conducting assembly connected with the sealing ring is arranged on the sampling disc; The delay sampling mechanism is arranged on the movable rod and is connected with the sealing ring, the movable rod is further provided with a rotation adjusting mechanism connected with the delay sampling mechanism, and the rotation adjusting mechanism can drive the sampling disc to intermittently rotate when the delay sampling mechanism moves so as to adjust the conduction state of the conduction assembly and the delay sampling mechanism. As a further scheme of the invention, the conduction assembly comprises a conduction hole formed on the sealing ring, an air inlet hole in conduction fit with the conduction hole is formed at the top of the sampling disc, a feeding hole in conduction fit with the conveying pipe is formed at the side wall of the sampling disc, a discharge hole is formed at the bottom of the sampling disc, and a plurality of air inlet holes, feeding holes and discharge holes are distributed at equal intervals in circumference. The delay sampling mechanism comprises a fixed plate fixed on the movable rod, a piston cylinder is fixed on the fixed plate, and a piston disc is connected in a sliding and sealing manner in the piston cylinder; the device also comprises a pushing component and a sucking component which are arranged on the fixed plate and connected with the piston disc. As a still further proposal of the invention, the pushing component comprises a cylinder fixed on the fixed plate and inserted into the piston cylinder, a push rod penetrating through the piston disc is fixed on the telescopic end of the cylinder, and an upper pushing ring and a lower pushing ring which are in interference fit with the piston disc