CN105716910A - Multi-channel segmented sampling device for rain water quality analysis - Google Patents

Abstract

The invention provides a multi-channel segmented sampling device for rain water quality analysis. The multi-channel segmented sampling device comprises a water bearing device, a drainage device, sampling devices and a box body provided with a side door; the bottom of the water bearing device is fixed to the upper end of the box body, and the water bearing device is communicated with the sampling devices arranged on a base of the box body through the drainage device arranged in the box body; the drainage device comprises a branch pipe for being communicated with the water bearing device and flow diversion pipes for being communicated with the sampling devices, the branch pipe is provided with a plurality of water diversion holes in the axial direction of the branch pipe, each flow diversion hole corresponds to one flow diversion pipe, a water outlet in the bottom of each flow diversion pipe is configured with a sampling device, and heights of corresponding water inlets of the flow diversion pipes are gradually increased from a water inlet in the front end of the branch pipe to a water outlet in the tail end of the branch pipe. The multi-channel segmented sampling device has the advantages that rainwater obtained in different time periods, namely the initial raining period, xx can be collected,.

Description

Multi-channel segmental sampling device for rainwater quality analysis

technical field

The invention relates to a multi-channel segmental sampling device for rainwater quality analysis.

Background technique

Due to the continuous improvement of industrialization and urbanization, waste gas containing a large amount of sulfur, carbon and other elements is discharged into the atmosphere, and these pollutions are brought to the ground through rainfall. Therefore, the quality of rainwater has always been between urban regional pollution and global environmental pollution. Among them, the problem of acid rain is particularly prominent. At present, all countries in the world attach great importance to the study of acid rain, including the causes of acid rain and its pollution to the environment. Our research on rainwater quality should not only be limited to acid rain, but also include other indicators and various factors that can affect the environment. At present, when the severe environmental problems lead to smog weather, people always hope that the rain will take away the smog, but they do not know that the polluted rainwater is also very harmful to the environment and human beings.

Water quality is closely related to human life and health. With the development of urban construction, urban pollution is becoming more and more serious. Most people lack a correct understanding of rainwater pollution. In the early 1980s, China carried out research on non-point source pollution of urban rainwater runoff in Beijing, which started relatively late. In order to make more people aware of the pollution of rainwater to the environment, we must be soberly aware that rainwater (including snow) is not as clean as imagined. At the same time, in order to better control the various pollution of rainwater, it is necessary to understand how the pollution in rainwater is generated and the change characteristics of the concentration of pollutants, and to grasp its change law. Moreover, the urgent task of this year's two sessions is to promptly revise the Environmental Protection Law and the Law on the Prevention and Control of Air Pollution, Water Pollution and Solid Waste Pollution, speed up the formulation of laws such as the Law on the Prevention and Control of Soil Pollution, formulate and improve relevant environmental standards, and improve the total amount of pollutant discharge control. system and pollution control franchise system. The determination of the quality of rainwater and the study of its impact on the environment respond to the call of the two sessions to strive to basically solve the problem of environmental pollution in my country within 10-20 years.

At present, many cities have rainwater and rainfall detection instruments, but there is a lack of a systematic rainwater quality measurement collector to collect rainwater and measure the rainwater quality later. Therefore, there is a need for a device to collect rainwater, and it can collect rainwater in different periods of rain, and then measure the quality of rainwater in different periods in the later stage, so as to study the pollution and impact of rainwater on the environment.

Contents of the invention

Aiming at the problem that current rainwater and rainfall detection instruments lack segmental collection of rainwater, the invention proposes a rainwater quality analysis multi-channel segmental sampling device capable of collecting rainwater in segments.

The multi-channel segmented sampling device for rainwater quality analysis according to the present invention is characterized in that it includes a water receiver, a drainage device, a sampler, and a box with a side door, and the bottom of the water receiver is fixed on the upper end of the box. And the water receiver communicates with the sampler placed on the base of the box through the drainage device placed in the box; the drainage device includes a branch pipe used to communicate with the water receiver, a branch pipe used to communicate with the sampler The branch pipe is arranged with a plurality of water diversion holes along the axial direction of the branch pipe. Each water diversion hole corresponds to a diversion pipe. The bottom water outlet of each diversion pipe is equipped with a sampler, and the water inlet along the front end of the branch pipe The height of the water inlet of the diversion pipe corresponding to the water outlet at the end of the branch pipe increases progressively.

The angle between the axis of the branch pipe and the horizontal line is an acute angle, and the distance between the water inlet at the front end of the branch pipe and the base is the smallest.

The distribution pipes are arranged equidistantly, and all the distribution pipes are arranged in parallel.

Corresponding barbs are provided at the intersections of the branch pipes and the corresponding distribution pipes.

The water receiver is a trumpet-shaped structure, and the cross-sections of the water inlet at the upper end and the water outlet at the lower end of the water receiver are both circular.

The base is provided with a groove for placing a sampler.

The sampler is a sampling bottle with a sealed rubber stopper.

Specifically, the whole instrument is 1.6m high, wherein the water inlet cross-section diameter d1 of the water receiver is _1m , the cross section of the water receiver outlet _d2 is a circular water outlet with a diameter of 20cm, and the water receiver The height h ₁ is 0.3m; the angle α between the branch pipe axis and the horizontal line is 26.565 degrees, the length-to-height ratio is 2:1, and the distance d ₃ between adjacent distribution pipes is 6cm; the box body The height h ₂ is 1.3m, the length is 1m, and the width is 0.5m; the diameter _d4 of the branch pipe and the distribution pipe is 2mm; the length of the base I ₁ is 1.2m, and the width I ₂ is 0.5m. There are ₈ grooves for placing the sampler on the top, and the groove diameter d5 is 6cm; the length of the side door of the box is 0.6m, and the height is 0.3m.

Working process: Before it rains, first put the sampler into the groove of the base of the device. The rainwater enters the device through the water receiver, and then flows into the diversion pipe with the lowest water inlet height through the branch pipe. When the sampling bottle corresponding to this pipe is full, the rainwater will overflow and flow to the next diversion pipe, allowing the next sampling water bottle to be sampled . Continue in sequence to collect rainwater in different periods.

The beneficial effects of the present invention are: to realize the quantitative collection of rainwater in different periods, and to divide the rainwater into sections according to the amount by adopting the device of pipe diversion; to realize the collection of rainwater in different periods, and to collect the rainwater from the initial stage of rain to the middle period of rain , the rainwater in the later period of the rain. Since the pollutants in the atmosphere will be carried away by rainwater, the collection and measurement of rainwater in these different periods is more conducive to the study of the impact of rainwater on the environment and the degree of pollution.

Description of drawings

Fig. 1 is a front view of the present invention.

Fig. 2 is a structural diagram of the base of the present invention.

Fig. 3 is one of the specific processing schematic diagrams of the present invention.

Fig. 4 is the second specific processing schematic diagram of the present invention.

Fig. 5 is a structural diagram of the barb of the present invention (the arrow represents the direction of water flow).

detailed description

Further illustrate the present invention below in conjunction with accompanying drawing

Referring to the attached picture:

Embodiment 1 The multi-channel segmental sampling device for rainwater quality analysis of the present invention includes a water receiver 1, a drainage device 2, a sampler 3, and a box 4 with a side door. The bottom of the water receiver 1 is fixed on The upper end of the box body 4, and the water receiver 1 communicates with the sampler 3 placed on the base 41 of the box body 4 through the drainage device 2 placed in the box body 4; The branch pipe 21 communicating with the water device 1 and the branch pipe 22 used to communicate with the sampler. The branch pipe 21 is arranged with a plurality of water diversion holes along the axial direction of the branch pipe, and each water diversion hole corresponds to a branch pipe 22. The water outlet at the bottom of the branch pipe 22 is equipped with a sampler 3, and the height of the water inlet of the branch pipe 22 increases gradually along the direction from the water inlet at the front end of the branch pipe 21 to the water outlet at the end of the branch pipe 21.

The angle between the axis of the branch pipe 21 and the horizontal line is an acute angle, and the distance between the water inlet at the front end of the branch pipe 21 and the base 41 is the smallest.

The distribution pipelines 22 are arranged equidistantly, and all the distribution pipelines 22 are arranged in parallel.

Corresponding barbs 23 are provided at the junctions of the branch pipes 21 and the corresponding distribution pipes 22 .

The water receiver 1 is a trumpet-shaped structure, and the cross-sections of the water inlet at the upper end and the water outlet at the lower end of the water receiver 1 are both circular.

The base 41 is provided with a groove 411 for placing a sampler.

The sampler 3 is a sampling bottle with a sealing rubber stopper 31 .

Specifically, the whole instrument is 1.6m high, wherein the water inlet cross-section diameter d1 of the water receiver is _1m , the cross section of the water receiver outlet _d2 is a circular water outlet with a diameter of 20cm, and the water receiver The height h ₁ is 0.3m; the angle α between the branch pipe axis and the horizontal line is 26.565 degrees, the length-to-height ratio is 2:1, and the distance d ₃ between adjacent distribution pipes is 6cm; the box body The height h ₂ is 1.3m, the length is 1m, and the width is 0.5m; the diameter _d4 of the branch pipe and the distribution pipe is 2mm; the length of the base I ₁ is 1.2m, and the width I ₂ is 0.5m. There are ₈ grooves for placing the sampler on the top, and the groove diameter d5 is 6cm; the length of the side door of the box is 0.6m, and the height is 0.3m.

Working process: before it rains, the sampler 3 will be put into the groove 411 of the base 41 of the device at first. Rainwater enters the device through the water receiver 1, and then flows through the branch pipe 21 to the diversion pipe 22 with the lowest water inlet height. When the sampling bottle corresponding to this pipe is full, the rainwater will overflow and flow to the next diversion pipe for the next sampling Water bottle for sampling. Continue in sequence to collect rainwater in different periods.

The content described in the embodiments of this specification is only an enumeration of the implementation forms of the inventive concept. The protection scope of the present invention should not be regarded as limited to the specific forms stated in the embodiments. The protection scope of the present invention also includes those skilled in the art. Equivalent technical means conceivable according to the concept of the present invention.

Claims (7)

1. Rainwater Quality analyzes multi-access-like segment sampler, it is characterized in that: include raingauge receiver, drainage system, sampler, casing with side door, it is fixed on casing upper end bottom described raingauge receiver, and described raingauge receiver is connected with the sampler being placed on cabinet base by the drainage system being placed in casing；Described drainage system includes the arm for connecting, shunt conduit for connecting with sampler with raingauge receiver, described arm is along the multiple tapping hole of arm axial arranging, the corresponding shunt conduit of each tapping hole, the bottom outlet of every shunt conduit is furnished with a sampler, and along arm front end water inlet to shunt conduit water inlet increasing height corresponding to arm outlet water at tail end mouth.

2. Rainwater Quality as claimed in claim 1 analyzes multi-access-like segment sampler, it is characterised in that: the axis of described arm and horizontal angle are acute angle, and water inlet distance base in arm front end is apart from minimum.

3. Rainwater Quality as claimed in claim 2 analyzes multi-access-like segment sampler, it is characterised in that: described arm is equipped with corresponding barb with corresponding shunt conduit intersection.

4. Rainwater Quality as claimed in claim 3 analyzes multi-access-like segment sampler, it is characterised in that: described shunt conduit equidistant arrangement, and all of shunt conduit be arranged in parallel.

5. Rainwater Quality as claimed in claim 1 analyzes multi-access-like segment sampler, it is characterised in that: described raingauge receiver is flared structure, and the cross section of described raingauge receiver upper end water inlet and lower end outlet is circle.

6. Rainwater Quality as claimed in claim 1 analyzes multi-access-like segment sampler, it is characterised in that: described base is provided with the groove for placing sampler.

7. Rainwater Quality as claimed in claim 4 analyzes multi-access-like segment sampler, it is characterised in that: described sampler is the sampling bottle with sealing rubber plug.