CN217033136U

CN217033136U - Sampling device for water quality testing

Info

Publication number: CN217033136U
Application number: CN202122405446.0U
Authority: CN
Inventors: 石超; 韩淑婷; 张卫华; 安黎平; 尹志诚; 张峻瑜; 周玺安
Original assignee: Rizhao Sanlian Water Transfer Co ltd
Current assignee: Rizhao Sanlian Water Transfer Co ltd
Priority date: 2021-09-30
Filing date: 2021-09-30
Publication date: 2022-07-22
Anticipated expiration: 2031-09-30

Abstract

A sampling device for water quality detection comprises a connecting pipe connected with a water supply pipeline, wherein a sliding sampling rod is arranged in the connecting pipe, and a sampling concave cavity is arranged on the sliding sampling rod; a sliding cavity is arranged on one side of the connecting pipe, which is far away from the water supply pipeline, the sliding sampling rod is arranged in the sliding cavity, a piston fixedly connected with the sliding sampling rod is arranged in the sliding cavity, and the piston is connected with a power mechanism; the sliding cavity is provided with an external taking device, and the external taking device is matched with the sampling cavity through a sampling tube. This application adopts the mode of slip sample, through setting up sample cavity and control dwell time's mode for can take out the water sample of middle part position, through the experimental discovery, it can guarantee basically in the middle of the process that removes from the middle part toward the outside, can remain original water sample basically, makes avoiding pipe pollution phenomenon and often establishes the emergence of device increase middle part pressure drag phenomenon.

Description

Sampling device for water quality testing

Technical Field

The application relates to a sampling device for water quality testing.

Background

When the large-diameter pipeline transfers water, because the pipe diameter is larger, when the water quality of the large-diameter pipeline is detected at present, some parameters adopt a pre-embedded form, such as pressure, temperature and the like, which can be directly obtained for measurement; some water needs to be taken out for determination, for example, the content of certain components, the content of microorganisms and the like, the existing taking-out mode is mostly a bypass taking-out mode, if the pipeline with the large diameter is directly opened, substances on the bottom layer are led out, the real-time performance of substance determination is poor, even the determination result has no reference value, in order to ensure the accuracy of the determination result, some water needs to be taken out by adopting a mode of setting a taking-out pipe in the middle, the local resistance is increased, the taking-out pipe is easy to damage, impurities are easy to remain on a sampling part, and the sampling detection effect is influenced.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems, the application provides a sampling device for water quality detection, which comprises a connecting pipe connected with a water supply pipeline, wherein a sliding sampling rod is arranged in the connecting pipe, and a sampling concave cavity is arranged on the sliding sampling rod; a sliding cavity is arranged on one side of the connecting pipe, which is far away from the water supply pipeline, the sliding sampling rod is arranged in the sliding cavity, a piston fixedly connected with the sliding sampling rod is arranged in the sliding cavity, and the piston is connected with a power mechanism; and an external taking device is arranged on the sliding cavity and is matched with the sampling concave cavity through a sampling tube. This application adopts the mode of slip sample, through setting up the mode of sample cavity and control dwell time for can take out the water sample of middle part position, through experimental discovery, it can guarantee basically in the middle of the process that removes from the middle part toward the outside, can remain original water sample basically, makes avoiding pipe pollution phenomenon and often establishes the emergence of device increase middle part pressure drag phenomenon.

Preferably, the sliding cavity is internally provided with a sliding tube, the sliding sampling rod is arranged in the sliding tube in a sliding mode, the sampling tube comprises a first sub-tube arranged between the sliding tube and the external taking device and a second sub-tube arranged on one side of the external taking device, and the first sub-tube and the second sub-tube are arranged oppositely.

Preferably, the sample cavity includes the first sample chamber towards water supply pipe water flow direction, first sample chamber sets up an opening towards one side of water flow direction, and the first sample chamber back of the body leaves the other side of opening and is equipped with the second sample chamber. This application is through setting up this kind of structure for when the velocity of flow of rivers is great, just have certain possibility to take a sample, and be close to the pipeline marginal area, because its velocity of flow is slower, can not break through the restriction here, in order to reach the mesh of the mobile water of sample.

Preferably, the second sampling cavity is an external connecting pipe.

Preferably, the second sub-pipe is communicated with a compressed air source; the external taking device comprises a conical separator, and a sampler is arranged at the bottom of the conical separator. The method for separating the water sample by adopting the back flushing and the conical separator can avoid internal residue, avoid the phenomenon of strong interference between every sampling and can well finish sampling.

Preferably, the sampler comprises a split charging valve, and the split charging valve is connected with the split charging bottle through a plurality of split charging sub-pipelines.

Preferably, the top of the conical separator is provided with an exhaust part, and the middle part of the conical separator is provided with an overflow pipeline and communicated with the overflow container.

This application can bring following beneficial effect:

1. the water sampling device adopts a sliding sampling mode, and a mode of setting a sampling cavity and controlling the retention time is adopted, so that a water sample at the middle position can be taken out;

2. by the structure, when the flow velocity of water flow is high, sampling can be carried out with certain possibility, and in the area close to the edge of the pipeline, the flow velocity is slow, so that the limit of the area cannot be broken through, and the purpose of sampling the flowing water body is achieved;

3. the method for separating the water sample by adopting the back flushing and the conical separator can avoid internal residue, avoid the phenomenon of strong interference between every sampling and can also well finish sampling.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:

FIG. 1 is a schematic structural diagram of the present application;

FIG. 2 is a schematic view of a sliding thief rod;

FIG. 3 is a schematic illustration of the present application at the time of sampling;

FIG. 4 is a schematic representation of the present application as it collects a sample.

Detailed Description

In order to clearly explain the technical features of the present invention, the present application will be explained in detail by the following embodiments and the accompanying drawings.

In a first embodiment, as shown in fig. 1-4, a sampling device for water quality detection comprises a connecting pipe 2 connected to a water supply pipeline 1, a sliding sampling rod 3 disposed in the connecting pipe 2, a sampling cavity 4 disposed on the sliding sampling rod 3; a sliding cavity 5 is arranged on one side of the connecting pipe 2 far away from the water supply pipeline 1, the sliding sampling rod 3 is arranged in the sliding cavity 5, a piston 6 fixedly connected with the sliding sampling rod 3 is arranged in the sliding cavity 5, and the piston 6 is connected with a power mechanism; an external taking device 12 is arranged on the sliding cavity 5, and the external taking device 12 is matched with the sampling cavity 4 through a sampling tube. Be equipped with a slip pipe 7 in the slip chamber 5, slip thief rod 3 slides and sets up in slip pipe 7, and the sampling tube is including setting up at slip pipe 7 and getting first sub-pipe 8 between the device 12 and setting and getting the second sub-pipe 9 of device 12 one side outside deviating from outside, and first sub-pipe 8 and second sub-pipe 9 set up relatively. The sampling cavity 4 comprises a first sampling cavity 10 facing the water flow direction of the water supply pipeline 1, an opening is formed in one side, facing the water flow direction, of the first sampling cavity 10, and a second sampling cavity 11 is formed in the other side, facing away from the opening, of the first sampling cavity 10. The second sampling chamber 11 is an extension tube. The second sub-pipe 9 is arranged in communication with a compressed air source (not shown); the extraction device 12 comprises a conical separator 13, and a sampler is arranged at the bottom of the conical separator 13. The sampler comprises a split charging valve 14, and the split charging valve 14 is connected with a split charging bottle 16 through a plurality of split charging sub-pipelines 15. The top of the conical separator 13 is provided with a vent 17. An overflow line 18 is provided in the middle of the conical separator 13 and is arranged in communication with an overflow vessel 19.

During the use, utilize power unit (generally the piston cylinder) to drive piston 6 and the action of slip thief rod 3, enter into in the connecting pipe 2, in order to accomplish the sample to the sampling tube, generally need to stand more than 3 minutes, then rapid utilize power unit pull-back, after the pull-back, start the blowback, gas after the purification is through compressed air source, second sub-pipe 9, second sample chamber 11, first sample chamber 10, first sub-pipe 8 enters into toper separation portion, accomplish sample collection after the water sample is received to the bottom, can avoid the pollution for the mode that the pipe was derived.

The embodiments in the present specification are described in a progressive manner, and the same and similar parts among the embodiments are referred to each other, and each embodiment focuses on the differences from the other embodiments. In particular, for the system embodiment, since it is substantially similar to the method embodiment, the description is simple, and for the relevant points, reference may be made to the partial description of the method embodiment.

The above are merely examples of the present application and are not intended to limit the present application. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement or the like made within the spirit and principle of the present application shall be included in the scope of the claims of the present application.

Claims

1. The utility model provides a sampling device for water quality testing which characterized in that: the sampling device comprises a connecting pipe connected with a water supply pipeline, wherein a sliding sampling rod is arranged in the connecting pipe, and a sampling concave cavity is arranged on the sliding sampling rod; a sliding cavity is arranged on one side of the connecting pipe, which is far away from the water supply pipeline, the sliding sampling rod is arranged in the sliding cavity, a piston fixedly connected with the sliding sampling rod is arranged in the sliding cavity, and the piston is connected with a power mechanism; and an external taking device is arranged on the sliding cavity and is matched with the sampling concave cavity through a sampling tube.

2. The sampling device for water quality inspection according to claim 1, wherein: the slide intracavity is equipped with a slip pipe, the slip sample rod slides and sets up in the slip pipe, the sampling tube is getting first sub-pipe between the device and setting outside deviating from and is getting the second sub-pipe of device one side including setting up at the slip pipe and outside, first sub-pipe and second sub-pipe set up relatively.

3. The sampling device for water quality inspection according to claim 2, wherein: the sample cavity includes the first sample chamber towards water supply pipe water flow direction, first sample chamber sets up an opening towards one side of water flow direction, and the first sample chamber back of the body leaves the other one side of opening and is equipped with second sample chamber.

4. A sampling device for water quality testing according to claim 3, characterized in that: the second sampling cavity is an external connecting pipe.

5. The sampling device for water quality inspection according to claim 3, wherein: the second sub-pipe is communicated with a compressed air source; the external taking device comprises a conical separator, and a sampler is arranged at the bottom of the conical separator.

6. The sampling device for water quality inspection according to claim 5, wherein: the sampler comprises a split charging valve which is connected with the split charging bottle through a plurality of split charging sub-pipelines.

7. The sampling device for water quality inspection according to claim 5, wherein: the top of the conical separator is provided with an exhaust part.

8. The sampling device for water quality inspection according to claim 5, wherein: and the middle part of the conical separator is provided with an overflow pipeline which is communicated with the overflow container.