CN212391467U

CN212391467U - Simple and easy coastal wetland shallow groundwater monitoring devices

Info

Publication number: CN212391467U
Application number: CN202020645488.4U
Authority: CN
Inventors: 刘森; 杨霄; 贾超; 杨帆; 王丛; 刘娅楠
Original assignee: Shandong University
Current assignee: Shandong University
Priority date: 2020-04-26
Filing date: 2020-04-26
Publication date: 2021-01-22
Anticipated expiration: 2030-04-26

Abstract

The utility model discloses a simple coastal wetland shallow groundwater monitoring device, which comprises a monitoring well and a water sample collecting device, wherein the monitoring well comprises a well pipe; the well pipe is a double-layer sleeve pipe, round holes are uniformly distributed in the two layers of pipe walls, and a gap between the inner layer and the outer layer is used for filling a filter material. The utility model discloses a monitoring well and water sample collection system device simple structure, the quality is light, is applicable to the coastal wetland that big-and-middle-sized machinery can't get into, especially ecological protection district, through the manual work can quick convenient completion to the environment-friendly material is selected to the device's material, and is firm, and chemical stability is good, and is corrosion-resistant, does not have the pollution risk. The user can place the coastal wetland shallow groundwater monitoring equipment in the device according to the self needs, so as to meet the monitoring requirements.

Description

Simple and easy coastal wetland shallow groundwater monitoring devices

Technical Field

The utility model belongs to the technical field of the geology is investigated, concretely relates to coastal wetland shallow groundwater monitoring devices.

Background

The coastal wetland has fragile ecological geological environment and strong interaction between underground water and seawater, and the vegetation type is closely related to the type of the shallow underground water of the coastal wetland, so that the enhancement of the monitoring of the shallow underground water of the coastal wetland is necessary. The coastal wetland underground water monitoring technology is used for clearing dynamic changes of shallow layer underground water of a coastal wetland, is basic work for ecological geological investigation of the coastal wetland, is beneficial to mastering the type distribution characteristics of the shallow layer underground water of the coastal wetland, and is also an important link for reflecting the current situation of the water environment and the pollution history of the coastal wetland.

For the coastal wetland, especially the heavily protected coastal wetland, large machinery cannot enter, oil-gas power type equipment cannot be utilized, and most of the equipment depends on manpower to form a well for the shallow groundwater monitoring well of the coastal wetland. In addition, the coastal wetland has the characteristics of large silting degree, obvious tidal action, fragile environment and the like, and a coastal wetland shallow groundwater monitoring well completion device which has the characteristics of portability in carrying, good material chemical stability, no pollution, convenience in monitoring equipment putting, shallow groundwater sample collection and the like is needed.

Therefore, how to provide a coastal wetland shallow groundwater monitoring well completion device which has the characteristics of simple structure, portability in carrying, good material chemical stability, no pollution, convenience in monitoring equipment throwing, shallow groundwater sample collection and the like is a technical problem to be solved by technical personnel in the field at present.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a simple and easy coastal wetland shallow groundwater monitoring devices, it has simple structure, carries lightly, material chemical stability is good, pollution-free to can be convenient for monitoring facilities put in, characteristics such as shallow groundwater sample collection

In order to solve the technical problem, the utility model discloses a technical scheme is: a simple and easy coastal wetland shallow groundwater monitoring devices, including monitoring well and water sample collection system.

As a preferred mode of the present invention, the monitoring well comprises a well casing, a sealing member mounted on the top of the well casing, and a cone mounted on the bottom of the well casing.

Preferably, the well pipe is a double-layer sleeve pipe, round holes are uniformly distributed in two layers of pipe walls, and a gap between the inner layer and the outer layer is used for filling a filter material.

Further preferably, the sealing element is made of solid materials, and round holes are distributed on the surface of the sealing element; the bottom cone is a solid cone.

Further preferably, the inner wall of the well pipe is marked with a measuring scale.

As a preferred mode of the present invention, the water sample collecting device includes a water collector and a sampling rope connected to the water collector.

Further preferably, the bottom of the water taking device is connected with a balancing weight.

Further preferably, the sampling rope is fixed on the handle.

Further preferably, the monitoring well and the water sample collecting device are made of PVC materials.

The utility model provides a simple and easy coastal wetland shallow groundwater monitoring devices is applicable to coastal wetland groundwater monitoring technology field, and simple structure, quality are light and the operation of being convenient for is particularly useful for the monitoring work of the unable wetland groundwater that gets into of large-scale machinery, through artifical completion groundwater monitoring that can be convenient fast.

Drawings

Fig. 1 is a schematic diagram of the complete structure of the embodiment of the present invention;

fig. 2 is an exploded view of the monitoring well according to an embodiment of the present invention;

fig. 3 is an exploded view of the water intake device according to the embodiment of the present invention.

Detailed Description

To explain the technical solution of the present invention in more detail, the present invention provides preferred embodiments, which are provided only for more clear and complete description of the technical solution of the present invention, and it should be understood by those skilled in the art that the technical solution of the present invention is not limited to the specific embodiments illustrated, but also includes other embodiments.

The utility model provides one of them embodiment is: a simple and easy coastal wetland shallow groundwater monitoring device, as shown in figure 1, comprises a monitoring well and a water sample collection device.

The monitoring well comprises a well pipe 11, as shown in fig. 1 and 2, the well pipe 11 is a double-layer sleeve structure, and circular holes 111 with the diameter of 2 mm are distributed on the pipe walls of an inner layer and an outer layer. A gap is left between the inner layer and the outer layer and is used for filling the filter medium. The top of the well pipe 11 is threaded with a seal 12 and the bottom is threaded with a cone 13.

The sealing element 12 is made of solid material, and the surface of the sealing element is fully distributed with round holes with the diameter of 2 mm. The bottom cone 13 is a solid cone.

In a more preferable embodiment, the well pipe 11 has a cylindrical shape, and the height, the inner diameter, and the outer diameter are adjustable according to actual conditions. Underground water monitoring equipment such as CTD-river and the like can be placed in the well pipe.

In order to facilitate observation, the inner wall of the well pipe of the monitoring well is marked with measurement scales.

The water sample collecting device comprises a handle 21 and a sampling rope 22 fixed on the handle 21. The other end of the sampling rope 22 is connected with a water taking device 23, and a balancing weight 24 is connected below the water taking device 23. The handle 21 is a solid cylinder with a diameter of 5 mm. The sampling rope 22 is made of PVC material and has adjustable length.

As shown in fig. 1 and 3, the water collector 23 is a cylindrical container with a lid. An upper fixing ring 231 and a lower fixing ring 232 are respectively provided on the upper surface and the bottom surface of the upper cover. Wherein, the upper fixing ring 231 is used for connecting the sampling rope 22. The lower fixing ring 232 is used for connecting and fixing the counterweight block 24.

The upper cover of the water taking device 23 is in threaded connection with the barrel body, and round holes are uniformly distributed on the upper cover. Through which a sample of water can be introduced into the sampler 23. Meanwhile, the entry of impurities can be blocked.

The balancing weight 24 is a solid shot and is fixed on the lower part of the water collector 23 to assist the water collector 23 to be wholly immersed into a water body for collecting a water sample.

As a preferred mode, all accessories of the monitoring well and the water sample collecting device in the embodiment are all processed by PVC materials. The composite material has good chemical stability, light weight, corrosion resistance, environmental protection and no pollution to wetland environment. And all accessories adopt a threaded connection mode, so that the disassembly and the assembly are convenient.

The simple and easy coastal wetland shallow groundwater monitoring devices that this embodiment provided's theory of operation as follows:

the coastal wetland monitoring point is vertically placed on the monitoring well pipe 11, a gap between the inner layer and the outer layer of the monitoring well pipe 11 is filled with a filter material, the monitoring well pipe 11 is vertically pressed downwards by force so that the conical body 13 at the bottom end of the monitoring well pipe 11 is embedded into wetland sediments, a cushion plate is arranged at the top end of the monitoring well, a rubber hammer is adopted to vertically strike until 4/5 of the whole monitoring well pipe 11 enters the wetland sediments, then a water level gauge is used for continuously monitoring the groundwater level, the top end of the monitoring well pipe 11 is sealed by a sealing piece 12 after the water level is stable, the monitoring well is fixed, and GPS positioning is carried out on the monitoring point.

According to the degree of depth of monitoring well during the water intaking, select the sampling rope 22 of suitable length, put into the monitoring well with water intaking ware 23 and get water, under the effect of balancing weight 24, water intaking ware 23 can be soaked in completely, and rivers flow in from the aperture that water intaking ware 23 upper cover evenly arranged. When water is extracted, the sampling rope 22 is wound on the handle 21 and is slowly extracted out of the water extractor 23.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A simple and easy coastal wetland shallow groundwater monitoring devices which characterized in that: comprises a monitoring well and a water sample collecting device; the monitoring well comprises a well pipe; the well pipe is a double-layer sleeve pipe, round holes are uniformly distributed in the two layers of pipe walls, and a gap between the inner layer and the outer layer is used for filling a filter material.

2. The simplified coastal wetland shallow groundwater monitoring device as claimed in claim 1, wherein the monitoring well comprises a seal mounted on the top of the well pipe and a cone mounted on the bottom.

3. The simple coastal wetland shallow groundwater monitoring device as claimed in claim 2, wherein the sealing element is made of a solid material, and the surface of the sealing element is distributed with round holes.

4. The simple coastal wetland shallow groundwater monitoring device as claimed in claim 2, wherein the bottom cone is a solid cone.

5. The simple coastal wetland shallow groundwater monitoring device as claimed in claim 2, wherein the inner wall of the well pipe is marked with a measurement scale.

6. The simple coastal wetland shallow groundwater monitoring device as claimed in claim 1, wherein the water sample collection device comprises a water intake device and a sampling rope connected with the water intake device.

7. The simple coastal wetland shallow groundwater monitoring device as claimed in claim 6, wherein a balancing weight is connected to the bottom of the water intake device.

8. The simple coastal wetland shallow groundwater monitoring device as claimed in claim 7, wherein the sampling rope is fixed on a handle.

9. The simple coastal wetland shallow groundwater monitoring device as claimed in any one of claims 1 to 8, wherein the monitoring well and the water sample collection device are made of PVC.