CN219777208U

CN219777208U - Groundwater sampling device

Info

Publication number: CN219777208U
Application number: CN202320961217.3U
Authority: CN
Inventors: 王庆庆; 吕佳; 高刚; 郑佩; 刘彪; 贾伟
Original assignee: Shaanxi Shengda Testing Technology Co ltd
Current assignee: Shaanxi Shengda Testing Technology Co ltd
Priority date: 2023-04-25
Filing date: 2023-04-25
Publication date: 2023-09-29
Anticipated expiration: 2033-04-25

Abstract

The utility model belongs to the technical field of underground water sampling equipment, and particularly relates to an underground water sampling device which comprises a sampling assembly and a pipe diameter adapter, wherein one end of the pipe diameter adapter is provided with water inlet interfaces with different pipe diameters, the water inlet interfaces of the pipe diameter adapter are gated with a water lifting pump drain pipe, and the sampling assembly is connected with the other end of the pipe diameter adapter. In summary, the underground water sampling device provided by the utility model can be used for being connected with water lifting pump drainage pipes with different pipe diameters in a matching manner, is high in universality, can be used for selecting a water inlet adapter with matched caliber on an adapter according to the pipe diameters of the water lifting pump drainage pipes on site, is convenient for sampling work, and meanwhile, avoids the need of carrying a three-way sampling device with a valve and adapters with different pipe diameters when the underground water sampling device is used for sampling outdoors, and reduces the load of workers.

Description

Groundwater sampling device

Technical Field

The utility model belongs to the technical field of underground water sampling equipment, and particularly relates to an underground water sampling device.

Background

The underground water resource is the underground fresh water quantity which can be provided for human use within a certain period and can be recovered year by year, is a component part of water resource, and due to excessive exploitation and unreasonable utilization of the underground water, the underground water level is often caused to severely descend to form a large-area underground water descent funnel, and in urban areas with concentrated underground water consumption, the ground is caused to subside, and in addition, a large amount of industrial wastewater and domestic sewage infiltrate to often severely pollute the underground water source, so that the underground water resource is endangered. Therefore, the groundwater needs to be sampled and detected to reflect the groundwater quality.

According to the sampling method in the groundwater environment monitoring technical specification, groundwater is pumped out of a monitoring well by a water lifting pump:

1. if a drain pipe of the water lifting pump is provided with a drain branch pipe with a sampling valve, and the distance between a drain outlet and the drain branch pipe exceeds 2m, a sampling device with a pipe diameter matched with the pipe diameter of the drain branch pipe can be connected to the drain branch pipe; if a drain pipe with a valve is installed on the drain pipe of the water lifting pump, but the distance between the drain port and the drain pipe is less than 2m, a section of extension pipe should be connected to the drain port, so that the distance between the drain port and the sampling device is extended to more than 2m, as shown in fig. 6.

2. If there is no branch pipe on the drain pipe, but the drain pipe is closer to the wellhead, a three-way sampling device with a valve should be connected to the drain pipe orifice of the pump, and the rear end of the three-way sampling device is connected to an extension pipe, so that the distance between the drain port and the three-way sampling device extends to more than 2m, as shown in fig. 7.

The above method has the following problems:

when the water lifting pump accords with the water taking standard of the monitoring well, namely, when a water draining pipe of the water lifting pump is provided with a water draining branch pipe with a valve, a sampling pipe of the sampling device is directly connected with the water draining branch pipe of the water lifting pump to realize water taking;

however, when the existing underground water well on the detection site is utilized to take water, the water lifting pump is not provided with a water draining branch pipe, meanwhile, the caliber of the water draining pipe of the water lifting pump is different due to different specifications, the water lifting pump is not only required to carry a three-way sampling device with a valve, but also required to carry an adapter with various caliber specifications, the adapter matched with the pipe diameter is selected to connect the three-way sampling device with the water lifting pump draining pipe according to the pipe diameter of the water lifting pump draining pipe on the site, so that the whole universality of the existing sampling device is not high, the sampling work is inconvenient to carry out, and the load of workers is increased.

Disclosure of Invention

The utility model aims to provide a groundwater sampling device, which solves the problems that in the prior art, a three-way sampling device with a valve is needed to be carried during sampling, adapters with various caliber specifications are needed to be carried, the adapter with matched pipe diameters is selected to connect the three-way sampling device with a water lifting pump drain pipe according to the pipe diameters of the water lifting pump drain pipe on site, and the overall universality of the sampling device is not high.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

the underground water sampling device comprises a sampling assembly and a pipe diameter adapter, wherein one end of the pipe diameter adapter is provided with water inlet interfaces with different pipe diameters, and the water inlet interfaces of the pipe diameter adapter are gated with a water lifting pump drain pipe; the sampling component is connected with the other end of the pipe diameter adapter.

Further, the pipe diameter adapter comprises a first adapter component, one end of the first adapter component is provided with at least two water inlet adapter ports with different calibers, the calibers of the water inlet adapter ports are matched with the pipe diameter of a water outlet pipe of the water lifting pump, and plugs are arranged on the water inlet adapter ports; the other end of the first transfer component is connected with the sampling component.

Further, the first transfer assembly is provided with water inlet transfer ports with four calibers, namely a first transfer port, a second transfer port, a third transfer port and a fourth transfer port, and the calibers of the first transfer port, the second transfer port, the third transfer port and the fourth transfer port are sequentially reduced.

Further, the pipe diameter adapter further comprises a second adapter component, one end of the second adapter component is communicated with the first adapter component, and the other end of the second adapter component is provided with a water outlet adapter which is connected with the sampling component; the second switching assembly is provided with a buffer section, and the pipe diameter of the buffer section of the second switching assembly is larger than the caliber of the water inlet switching port of the first switching assembly.

Further, the water inlet conversion port and the water outlet conversion port are both provided with flanges or threads, and the water inlet conversion port is connected with a water lifting pump drain pipe through the flanges or threads; the water outlet conversion port is connected with the sampling assembly through a flange or threads.

Further, the second switching component is rotationally connected with the first switching component.

Further, a sealing ring is arranged at the joint of the first switching component and the second switching component.

Further, the sampling assembly comprises a sampling tube and a sampling bottle; the second switching subassembly is three-way structure, second switching subassembly one end and first switching subassembly rotate to be connected, the play water of second switching subassembly changes the interface and sets up the extension pipe, the length of extension pipe is greater than 2m, set up the shunt tubes on the section of thick bamboo wall of second switching subassembly, set up sampling valve on the shunt tubes, the shunt tubes is connected with the sampling pipe, sampling pipe and sampling bottle intercommunication.

Further, the sampling assembly comprises a three-way pipeline, a sampling pipe and a sampling bottle; the utility model discloses a three-way pipeline, including tee bend pipeline, sampling bottle, sampling valve, sampling pipe and sampling bottle, tee bend pipeline one end is connected with the water outlet switching mouth of second switching subassembly, tee bend pipeline and the relative one end of second switching subassembly set up the extension pipe, the length of extension pipe is greater than 2m, another tip of tee bend pipeline is the sampling end, the sampling end sets up sampling valve, the sampling end is connected with the sampling pipe, sampling pipe and sampling bottle intercommunication.

Compared with the prior art, the utility model has the beneficial effects that:

1. the utility model discloses an underground water sampling device, which comprises a sampling assembly and a pipe diameter adapter, wherein the sampling assembly is connected with a water lifting pump drain pipe through the pipe diameter adapter; through the pipe diameter adapter that has the water inlet adapter of different pipe diameters, can with the outlet phase-match of the different pipe diameters of common water lifting pump, during the use, according to the pipe diameter of on-the-spot water lifting pump drain pipe select use the adapter on the adapter of the water inlet adapter, the going on of sampling work of being convenient for, avoid simultaneously going out the sample need carry the adapter of different pipe diameters, alleviateed staff's burden.

2. The pipe diameter adapter also comprises a second adapter component, one end of the second adapter component is communicated with the first adapter component, the other end of the second adapter component is communicated with the sampling component, and a buffer section with the pipe diameter larger than the caliber of a water inlet adapter of the first adapter component is arranged on the second adapter component, so that the buffer of high-pressure water pumped by the water pump is facilitated, the water pressure at the front end and the rear end of the joint of the adapter is reduced, the connection between the water pump adapter and the water pump drain pipe as well as the sampling component is enhanced, and the long-term use of the device is facilitated.

3. The water inlet adapter and the water outlet adapter are both provided with flanges or threads, the water inlet adapter is communicated with the water lifting pump drain pipe through the flanges or threads, the water outlet adapter is communicated with the sampling assembly through the flanges or threads, and the flanges or threads facilitate connection between the water lifting pump adapter and the water lifting pump drain pipe and between the water lifting pump adapter and the sampling assembly or the extension pipe; the water inlet transfer ports are all provided with plugs, the plugs are used for realizing gating of the water inlet transfer ports, the plugs play a role in sealing the device when in standby, and when in use, the plugs on the water inlet transfer ports with the selected caliber are detached, and the water inlet transfer ports with the selected caliber are communicated with a water lifting pump drain pipe; further, a plug is also arranged on the water outlet conversion interface, the plug on the water outlet conversion interface is detached, and the water outlet conversion interface is connected with the sampling assembly or the extension pipe.

4. The utility model is further optimized, the second switching component is provided with a tee joint structure, the water outlet switching port is arranged at one end of the second switching component, the water outlet switching port is connected with the extension pipe, the other end of the second switching component is rotationally connected with the first switching component, the cylinder wall of the second switching component is provided with the split pipe, the split pipe is connected with the sampling component, and the split pipe is provided with the sampling valve; the pipe diameter adapter is set to be of a three-way structure, the shunt pipe is arranged on the cylinder wall of the pipe diameter adapter, the sampling valve is arranged on the shunt pipe, namely, the pipe diameter adapter replaces a three-way pipeline with a valve of an original sampling device and is directly connected with a sampling pipe and a sampling bottle, the pipe diameter adapter is not matched with the three-way pipeline, the integrity of the underground water sampling device is improved, the device is more suitable for a water lifting pump without a drainage branch pipe with the sampling valve, and the adaptability of the device is enhanced.

Drawings

FIG. 1 is a schematic diagram of a pipe diameter adapter according to the present utility model;

FIG. 2 is a schematic view of a first adapter assembly according to the present utility model;

FIG. 3 is a schematic view of a second adapter assembly according to the present utility model;

FIG. 4 is a schematic top view of a first adapter assembly according to the present utility model;

FIG. 5 is a schematic top view of a second adapter assembly according to the present utility model;

FIG. 6 is a schematic diagram of a prior art sampling device connection;

FIG. 7 is a schematic diagram of a prior art sampling device connection;

FIG. 8 is a schematic view of the structure of an underground water sampling device in embodiment 3;

wherein: 101-a water lifting pump drain pipe; 201-an extension tube; 301-sampling tube; 401-sampling valve; 501-pipe diameter adapter; 601-tee pipe;

1001-a first adapter assembly; 6001-a first transfer port; 6002-a second transfer port; 6003-third interface; 6004-fourth interface; 6005-first connection;

2001-a second switching assembly; 6006-a water outlet port; 6007-a second connector.

Detailed Description

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the drawings in the embodiments of the present utility model, but the present utility model is not limited to the embodiments described below.

Example 1

Referring to fig. 1 and 7, the present embodiment provides a first groundwater sampling device, which is suitable for a scenario that a water lifting pump of a field monitoring well is not provided with a drainage branch pipe.

The underground water sampling device comprises a sampling assembly and a pipe diameter adapter 501, wherein the sampling assembly comprises a sampling pipe 301, a sampling bottle and a three-way pipeline 601 with a sampling valve 401; one end of the pipe diameter adapter 501 is connected with the water lifting pump drain pipe 101, the pipe diameter adapter 501 is provided with water inlet interfaces with different pipe diameters, and the water inlet interfaces with different pipe diameters are gated with the water lifting pump drain pipe 101; the other end of pipe diameter adapter 501 is connected with the one end of the three-way pipeline 601 of sampling assembly, and the other end of three-way pipeline 601 sets up extension pipe 201 that length is greater than 2m, and pipe diameter adapter 501 in this embodiment replaces the current adapter in fig. 7 promptly, and three-way pipeline 601 sets up the sampling end, and the sampling end communicates with sampling pipe 301 and sampling bottle in proper order.

Referring to fig. 1 to 5, the pipe diameter adapter 501 includes a first adapter component 1001 and a second adapter component 2001 that are matched with each other; specifically, the first adapter component 1001 includes a first connecting piece 6005, where the first connecting piece 6005 is in a tubular structure, one end of the first adapter component 1001 is provided with water inlet ports with different pipe diameters, the water inlet ports are provided with plugs, and the water inlet ports with different pipe diameters are gated with the water lifting pump drain pipe 101; the other end of the first connecting member 6005 is connected to the second adapter assembly 2001.

Further, the water inlet transfer ports are provided with four transfer ports with different calibers, namely a first transfer port 6001, a second transfer port 6002, a third transfer port 6003 and a fourth transfer port 6004, wherein the calibers of the first transfer port 6001, the second transfer port 6002, the third transfer port 6003 and the fourth transfer port 6004 are sequentially reduced to meet the pipe diameters of different water lifting pump drain pipes 101; further, flanges or threads are respectively arranged on the first adapter 6001, the second adapter 6002, the third adapter 6003 and the fourth adapter 6004, so that the water inlet adapter is convenient to connect and fasten with the water lifting pump drain pipe 101 through the flanges or threads.

The second switching assembly 2001 comprises a second connecting piece 6007, the second connecting piece 6007 is of a tubular structure, the second switching assembly 2001 is provided with a water outlet switching port 6006, the water outlet switching port 6006 is arranged at one end of the second connecting piece 6007, the water outlet switching port 6006 is connected with one end of the three-way pipeline 601, and the other end of the second connecting piece 6007 is rotationally connected with the first connecting piece 6005; the pipe diameter of the middle part of the second connecting piece 6007 is larger than the pipe diameter of the inlet, the pipe diameter of the middle part of the second connecting piece 6007 is larger than the caliber of any water inlet conversion port of the first adapter component, the middle part of the second connecting piece 6007 is used as a buffer section, the buffer section is favorable for buffering high-pressure water pumped by a water pump, the pressure water at the front end and the rear end of the joint of the adapter is reduced, the connection between the water pump adapter and a water pump drain pipe and the connection between the water pump adapter and the sampling component or the extension pipe 201 are enhanced, and long-term use of the device is facilitated; further, the water outlet adapter 6006 is provided with a flange or screw thread, which facilitates the connection and fastening of the water outlet adapter 6006 with the three-way pipe 601 via the flange or screw thread.

The first adapting component 1001 and the second adapting component 2001 are rotationally connected, so that the first adapting component 1001 and the second adapting component 2001 are connected with the water lifting pump drain pipe 101 and the three-way pipeline 601 at two ends respectively, flexibility of the device is enhanced, specifically, the first connecting piece 6005 is sleeved on the second connecting piece 6007, a matched threaded structure is arranged on the first connecting piece 6005 and the second connecting piece 6007, and the first connecting piece 6005 is connected with the second connecting piece 6007 through threads.

A seal ring, preferably made of polytetrafluoroethylene, is provided at the junction of the first adapter assembly 1001 and the second adapter assembly 2001.

The groundwater sampling device of this embodiment, its theory of operation is:

during the use, select the water inlet adapter of pipe diameter adapter 501 suitable bore, like fourth adapter 6004, remove the end cap on it, other water inlet adapters remain the end cap, be connected fourth adapter 6004 and water lifting pump drain pipe 101, later with go out water adapter 6006 and sampling assembly's three-way pipeline 601 intercommunication, three-way pipeline 601's sampling end and sampling pipe 301 and sampling bottle communicate in proper order, three-way pipeline 601's the other end sets up extension pipe 201 that length is greater than 2m, wait to wash the well and accomplish after the quality of water parameter is stable, open the sampling valve 401 of taking on the three-way pipeline 601 and sample.

Example 2

Referring to fig. 7 and 8, the present embodiment provides a second groundwater sampling device, which is suitable for a scenario that a water lifting pump of a field monitoring well is not provided with a drainage branch pipe, and a sampling assembly includes a sampling pipe 301 and a sampling bottle which are sequentially connected.

The difference between the groundwater sampling device in this embodiment and embodiment 1 is that:

rotational connection between the first connection 6005 and the second connection 6007 of the pipe diameter adapter 501: the first connecting piece 6005 cover is established on second connecting piece 6007, joint between first connecting piece 6005 and the second connecting piece 6007, the inner wall of first connecting piece 6005 sets up the cell body along circumference, set up the ball in the cell body, the surface butt of ball and second connecting piece 6007, first subassembly 1001 is rotated through ball and second subassembly 2001 that switches and is connected, the rotation between first subassembly 1001 and the second subassembly 2001 of being convenient for, guarantee the circulation water yield between first subassembly 1001 and the second subassembly 2001 that switches.

And, further, replace the three-way pipeline with sampling valve of former sampling device to the pipe diameter adapter 501 of tee bend structure, specifically:

the second switching component 2001 is of a three-way structure, one end of a second connecting piece 6007 is rotationally connected with a first connecting piece 6005, a water outlet switching port 6006 of the second connecting piece 6007 is provided with an extension pipe 201, the length of the extension pipe 201 is greater than 2m, the wall of the second switching component 2001 is provided with a shunt pipe, the shunt pipe is provided with a sampling valve 401, the shunt pipe is connected with a sampling pipe 301, and the sampling pipe 301 is communicated with a sampling bottle; compared with the pipe diameter adapter 501 and the sampling assembly which are in split threaded connection in the embodiment 1, the underground water sampling device in the embodiment is higher in integrity and is more suitable for a water lifting pump without a water drainage branch pipe.

The groundwater sampling device of this embodiment, its theory of operation is:

when the sampling device is used, a water inlet adapter with a proper caliber of the pipe diameter adapter 501 is selected, for example, a first adapter 6001 is removed, plugs on the first adapter 6001 are removed, plugs are reserved on other water inlet adapters, the first adapter 6001 is connected with a water lifting pump drain pipe 101, an extension pipe 201 with the length of more than 2m is arranged at the rear end of a water outlet adapter 6006 of a second adapter 2001, a split pipe is arranged on the wall of the second adapter 2001, a sampling valve 401 is arranged on the split pipe, the split pipe is connected with a sampling pipe 301, and the sampling pipe 301 is communicated with a sampling bottle; after the water quality parameters are stabilized after well flushing is completed, a sampling valve 401 on a shunt pipe of the pipe diameter adapter 501 is opened for sampling.

In summary, the underground water sampling device provided by the utility model can be used for being connected with water lifting pump drainage pipes with different pipe diameters in a matching manner, is high in universality, can be used for selecting a water inlet adapter with matched caliber on an adapter according to the pipe diameters of the water lifting pump drainage pipes on site, is convenient for sampling work, and meanwhile, avoids the need of carrying a three-way sampling device with a valve and adapters with different pipe diameters when the underground water sampling device is used for sampling outdoors, and reduces the load of workers.

Claims

1. An underground water sampling device, its characterized in that: the sampling device comprises a sampling assembly and a pipe diameter adapter (501), wherein one end of the pipe diameter adapter (501) is provided with water inlet interfaces with different pipe diameters, and the water inlet interfaces of the pipe diameter adapter (501) are gated with a water lifting pump drain pipe (101); the sampling component is connected with the other end of the pipe diameter adapter (501).

2. The groundwater sampling device according to claim 1, wherein: the pipe diameter adapter (501) comprises a first adapter component (1001), one end of the first adapter component (1001) is provided with a water inlet adapter of at least two calibers, the caliber of the water inlet adapter is matched with the pipe diameter of a water lifting pump drain pipe (101), and a plug is arranged on the water inlet adapter; the other end of the first transfer component (1001) is connected with the sampling component.

3. The groundwater sampling device according to claim 2, wherein: the first transfer subassembly (1001) sets up the mouth of turning into of intaking of four kinds of bore, is first interface (6001), second interface (6002), third interface (6003) and fourth interface (6004) that change respectively, and the bore of first interface (6001), the bore of second interface (6002), the bore of third interface (6003) and the bore of fourth interface (6004) change in proper order and reduce.

4. A groundwater sampling device according to claim 3, wherein: the pipe diameter adapter (501) further comprises a second adapter component (2001), one end of the second adapter component (2001) is communicated with the first adapter component (1001), a water outlet adapter port (6006) is arranged at the other end of the second adapter component (2001), and the water outlet adapter port (6006) is connected with the sampling component; the second switching assembly (2001) is provided with a buffer section, and the pipe diameter of the buffer section of the second switching assembly (2001) is larger than the caliber of the water inlet switching interface of the first switching assembly (1001).

5. The groundwater sampling device according to claim 4, wherein: the water inlet turning joint and the water outlet turning joint (6006) are respectively provided with a flange or screw threads, and the water inlet turning joint is connected with a water lifting pump drain pipe (101) through the flanges or screw threads; the water outlet rotary interface (6006) is connected with the sampling assembly through a flange or threads.

6. The groundwater sampling device according to claim 5, wherein: the second adapter assembly (2001) is rotatably connected to the first adapter assembly (1001).

7. The groundwater sampling device according to claim 6, wherein: a sealing ring is arranged at the joint of the first switching component (1001) and the second switching component (2001).

8. The groundwater sampling device according to claim 7, wherein: the sampling assembly comprises a sampling tube (301) and a sampling bottle; the second switching subassembly (2001) is three-way structure, second switching subassembly (2001) one end and first switching subassembly (1001) rotate to be connected, play water of second switching subassembly (2001) changes interface (6006) and sets up extension pipe (201), the length of extension pipe (201) is greater than 2m, set up the shunt tubes on the section of thick bamboo wall of second switching subassembly (2001), set up sampling valve (401) on the shunt tubes, the shunt tubes is connected with sampling tube (301), sampling tube (301) and sampling bottle intercommunication.

9. The groundwater sampling device according to claim 7, wherein: the sampling assembly comprises a three-way pipeline (601), a sampling pipe (301) and a sampling bottle; one end of the three-way pipeline (601) is connected with a water outlet transfer port (6006) of the second transfer assembly (2001), one end of the three-way pipeline (601) opposite to the second transfer assembly (2001) is provided with an extension pipe (201), the length of the extension pipe (201) is greater than 2m, the other end of the three-way pipeline (601) is a sampling end, the sampling end is provided with a sampling valve (401), the sampling end is connected with a sampling pipe (301), and the sampling pipe (301) is communicated with a sampling bottle.