Modular sampling equipment for polluted underground water

Abstract

The utility model discloses modularized sampling equipment for polluted underground water, which comprises a sampling drill hole communicated with underground water, a sampling main communicating pipe is fixed in the sampling drill hole, and a plurality of sampling split communicating pipes are fixed in the sampling main communicating pipe; a vacuum type sampling mechanism is connected in the sampling split communicating pipe in a sliding manner; the vacuum type sampling mechanism comprises a sampling taking and placing sleeve which is in sliding fit in the sampling split communicating pipe, and a plurality of sampling bottles are placed in the sampling taking and placing sleeve; the bottleneck of each sampling bottle is communicated with underground water through a pipeline; the equipment has a timing sampling function, the plurality of sampling bottles are convenient to collect underground water samples in batches for multiple times, and sampling is performed according to a preset time interval by performing timing setting on each sampling input timing valve, so that the requirement of monitoring the dynamic change of underground water is met.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of sewage treatment, specifically to a polluted groundwater modular sampling equipment. BACKGROUND

[0002] The purpose of sampling polluted groundwater is to evaluate pollution condition, trace pollution source, monitor pollution change trend and provide data support for repair decision, by collecting groundwater samples at different places, the shape and range of pollution plume (distribution area of polluted groundwater) can be described, by chemical analysis and isotope analysis of groundwater samples, the source of pollutants can be traced, regular sampling can monitor the change of groundwater pollution with time.

[0003] But the current sampling measures are prone to sample cross contamination, and the sampling process is more cumbersome, the number of single sampling is limited, and the existing sampling device needs further improvement and optimization. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a polluted groundwater modular sampling equipment, which can automatically carry out regular interval sampling.

[0005] In order to realize the above-mentioned purpose, the utility model provides the following technical scheme:

[0006] A polluted groundwater modular sampling equipment, comprising a sampling drill hole in communication with groundwater, a sampling main communication pipe is fixed in the sampling drill hole, a plurality of sampling sub communication pipes are fixed in the sampling main communication pipe;

[0007] A vacuum sampling mechanism is slidably connected in the sampling sub communication pipe;

[0008] The vacuum sampling mechanism comprises a sampling taking and placing casing pipe slidably matched in the sampling sub communication pipe, a plurality of sampling bottles are placed in the sampling taking and placing casing pipe;

[0009] The bottle opening of each sampling bottle is in communication with the groundwater through a pipeline.

[0010] Preferably, a sampling input short pipe is arranged in communication at the bottle opening of the sampling bottle, and a sampling input check valve is arranged in the sampling input short pipe;

[0011] An input control sealing cylinder is sleeved on the outer end of the sampling input short pipe, an input control pipe in communication with the sampling input short pipe is connected to the outer end of the input control sealing cylinder, and a sampling input timing valve is arranged on the sampling input control pipe.

[0012] Description: Multiple sampling bottles facilitate batch collection of groundwater samples, and the sampling input timing valve is set to sample at a predetermined time interval to meet the needs of monitoring dynamic changes in groundwater.

[0013] Preferably, the sampling and taking sleeve extends into the interior of the end of the groundwater, and the sample delivery support plate is fixed on the end of the groundwater.

[0014] Description: Each sampling bottle is connected to the groundwater through an independent sample delivery flow-through pipe, avoiding cross contamination between samples and affecting the accuracy of detection and analysis.

[0015] Preferably, the water sampling filter screen is provided inside the end of the sampling and taking sleeve.

[0016] Description: The water sampling filter screen can filter impurities in groundwater to prevent clogging of subsequent pipes and valves.

[0017] Preferably, the sampling and taking sleeve is provided with a taking and placing traction rope.

[0018] Description: By controlling the taking and placing traction rope, the sampling and taking sleeve can be placed in the sampling split communication pipe or taken out as a whole.

[0019] Compared with the prior art, the beneficial effects of the present application are as follows:

[0020] 1. The structure of the present application is reasonable, and a sampling borehole is drilled in the ground to communicate with the groundwater, and a sampling main communication pipe is fixed and placed in the sampling borehole, which can stabilize and support the sampling borehole, prevent the sidewall of the sampling borehole from collapsing, and maintain the integrity of the sampling borehole.

[0021] 2. The present application is easy to operate, and the water sampling filter screen and the sample delivery support plate are fixed and installed in the sampling and taking sleeve by screwing, and multiple sampling bottles similar to grape clusters are placed in the sampling and taking sleeve with their mouths downward, the sample delivery support plate is fixed and installed first, and then the water sampling filter screen is fixed and installed in the sampling and taking sleeve.

[0022] 3. The present application has the function of timed sampling, and the sampling input timing valve is set to sample at a predetermined time interval to meet the needs of monitoring dynamic changes in groundwater.

[0023] 4, The utility model discloses easy to install and detach, adopt modularization design, and the connection between each component is simple and convenient, and it is convenient to assemble and detach on the spot quickly, and it is convenient to carry and remove, and the overall equipment is light, and it is convenient to transport between different sampling sites; BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 is the front view of the utility model;

[0025] Figure 2 is Figure 1 the bottom view of the utility model;

[0026] Figure 3 is the structure diagram of the vacuum sampling mechanism of the utility model;

[0027] Figure 4 is the structure diagram of the sampling input short pipe of the utility model;

[0028] Figure 5 is the structure diagram of the sample distribution support plate of the utility model.

[0029] In the drawing, 10 is a sampling drill hole, 11 is a sampling main communication pipe, 12 is a sampling sub-communication pipe, 13 is a vacuum sampling mechanism, 130 is a sampling bottle, 131 is a sampling taking and placing sleeve, 132 is a sampling input short pipe, 1320 is a sampling input one-way valve, 133 is an input control sealing cylinder, 134 is a sampling input control pipe, 1340 is a sampling input timing valve, 14 is a sample distribution support plate, 141 is a sample distribution end pipe, 142 is a sample distribution flow-through pipe, 15 is a water body sampling filter screen, and 16 is a taking and placing traction rope. DETAILED DESCRIPTION

[0030] The utility model will be described in detail below, for the convenience of description, the direction defined as follows will be said below: the up-down, left-right and front-back directions of the following text are consistent with the up-down, left-right and front-back directions of the projection relationship of the respective front view or structure diagram itself. Figures 1-5

[0031] Example 1:

[0032] A kind of pollution underground water modular sampling equipment, as shown in Fig. Figure 1 It includes sampling drill hole 10 connected with underground water, sampling drill hole 10 is fixed with sampling main communication pipe 11, and sampling main communication pipe 11 is fixed with multiple sampling sub-communication pipes 12 in it;

[0033] Vacuum sampling mechanism 13 is slidably connected in sampling sub-communication pipe 12;

[0034] As Figure 3 ​As shown, the vacuum sampling mechanism 13 includes a sampling taking and placing sleeve 131 which is slidingly fitted in the sampling sub-communication pipe 12, and a plurality of sampling bottles 130 are placed in the sampling taking and placing sleeve 131;

[0035] The sampling bottles 130 are in a vacuum state inside initially;

[0036] The bottle mouth of each sampling bottle 130 is connected with the underground water through a pipeline.

[0037] As shown, Figure 4 The bottle mouth of the sampling bottle 130 is connected with a sampling input short pipe 132, and the sampling input short pipe 132 is provided with a sampling input one-way valve 1320;

[0038] The sampling input one-way valve 1320 is a one-way valve in the prior art;

[0039] The outer end of the sampling input short pipe 132 is sleeved with an input control sealing cylinder 133, the outer end of the input control sealing cylinder 133 is connected with a sampling input control pipe 134 which is connected with the sampling input short pipe 132, and the sampling input control pipe 134 is provided with a sampling input timing valve 1340;

[0040] The sampling input timing valve 1340 is a timing valve in the prior art.

[0041] Embodiment 2:

[0042] Based on the embodiment 1, as shown, Figure 5 The sampling taking and placing sleeve 131 is fixed with a sample distribution support plate 14 inside the one end which extends into the underground water, the sample distribution support plate 14 is fixed with a plurality of sample distribution end pipes 141, and the plurality of sample distribution end pipes 141 are connected with the sampling input control pipes 134 one by one through a sample distribution flow pipe 142.

[0043] Embodiment 3:

[0044] Based on the embodiment 2, as shown, Figure 5 The sampling taking and placing sleeve 131 is provided with a water body sampling filter screen 15 inside the one end which extends into the underground water, and the water body sampling filter screen 15 is a 400-mesh filter screen in the prior art.

[0045] As shown, Figure 3 The upper end of the sampling taking and placing sleeve 131 is provided with a taking and placing traction rope 16.

[0046] In the actual application process, first, the drilling machine in the prior art is used to drill a sampling drill hole 10 which is connected with the underground water on the ground, and a sampling main communication pipe 11 is fixed and placed in the sampling drill hole 10, so that the sampling drill hole 10 can be stably supported, the collapse of the side wall of the sampling drill hole 10 is avoided, and the integrity of the sampling drill hole 10 is maintained;

[0047] The lower ends of the plurality of sampling sub-communication pipes 12 are immersed in underground water;

[0048] In the initial state, the sampling bottle 130 is empty, and the inside of the sampling bottle 130 is in a vacuum state;

[0049] The water body sampling filter 15 and the sample delivery support plate 14 are fixedly installed in the sampling taking and placing sleeve 131 by screwing, and the sampling input short pipe 132 is also fixedly installed in the input control sealing cylinder 133 by screwing;

[0050] The sampling input timing valves 1340 are set to different time intervals, for example, the first sampling input timing valve 1340 is set to 30 minutes, the second sampling input timing valve 1340 is set to 60 minutes, and so on, and each next sampling input timing valve 1340 is set to an interval of 30 minutes;

[0051] A plurality of sampling bottles 130 in the shape of grape clusters are placed in the sampling taking and placing sleeve 131 with the bottle mouths downward, the sample delivery support plate 14 is fixedly installed first, and then the water body sampling filter 15 is fixedly installed in the sampling taking and placing sleeve 131;

[0052] Under the traction control of the taking and placing traction rope 16, the sampling taking and placing sleeve 131 is slid into the sampling sub-communication pipe 12, and finally the sample delivery end pipes 141 are immersed in underground water, and then waiting is needed;

[0053] Every 30 minutes, one sampling input timing valve 1340 is opened, and under the action of negative pressure, underground water enters the sampling bottle 130 through the sample delivery end pipe 141, the sample delivery flow-through pipe 142, the sampling input control pipe 134, and the sampling input short pipe 132 in sequence, to form an underground water sample;

[0054] The sampling input one-way valve 1320 only allows underground water to enter the inside of the sampling bottle 130 from the outside, and the underground water sample in the inside of the sampling bottle 130 cannot be discharged through the sampling input one-way valve 1320;

[0055] Every 30 minutes, one sampling input timing valve 1340 is opened, and underground water is collected in the sampling bottle 130 in batches to form an underground water sample;

[0056] When all the sampling bottles 130 collect underground water samples, the sampling taking and placing sleeve 131 is taken out from the sampling sub-communication pipe 12 through the taking and placing traction rope 16, the water body sampling filter 15 and the sample delivery support plate 14 are sequentially disassembled, and the plurality of sampling bottles 130 are taken out from the sampling taking and placing sleeve 131.

Claims

1. A modular sampling device for contaminated groundwater, characterized in that, It includes a sampling borehole (10) connected to groundwater, a sampling main connecting pipe (11) fixed inside the sampling borehole (10), and multiple sampling branch connecting pipes (12) fixed inside the sampling main connecting pipe (11). A vacuum sampling mechanism (13) is slidably connected inside the sampling split connecting tube (12). The vacuum sampling mechanism (13) includes a sampling pick-and-place sleeve (131) that slides within the sampling split connecting tube (12), and multiple sampling bottles (130) are placed inside the sampling pick-and-place sleeve (131). The openings of each of the sampling bottles (130) are connected to groundwater via pipes.

2. The modular sampling device for contaminated groundwater according to claim 1, characterized in that, The sampling bottle (130) is connected to a sampling input short tube (132) at its mouth, and a sampling input one-way valve (1320) is provided inside the sampling input short tube (132). The outer end of the sampling input short tube (132) is fitted with an input control sealing cylinder (133), and the outer end of the input control sealing cylinder (133) is connected to a sampling input control tube (134) that communicates with the sampling input short tube (132). The sampling input control tube (134) is equipped with a sampling input timing valve (1340).

3. The modular sampling device for contaminated groundwater according to claim 2, characterized in that, The sampling and placement sleeve (131) is inserted into the groundwater and a sample distribution support plate (14) is fixed inside. Multiple sample distribution end pipes (141) are fixed on the sample distribution support plate (14). The multiple sample distribution end pipes (141) are connected to each of the sampling input control pipes (134) one by one through the sample distribution flow pipe (142).

4. The modular sampling device for contaminated groundwater according to claim 1, characterized in that, The sampling sleeve (131) is equipped with a water sampling filter (15) at the end that extends into the groundwater.

5. A modular sampling device for contaminated groundwater according to claim 1, characterized in that, The upper end of the sampling and placement sleeve (131) is provided with a traction rope (16).

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