CN106153395B - A kind of underground water integrates sampling apparatus - Google Patents

Abstract

The invention provides an integrated groundwater sampling device, comprising a main body of the sampling device for collecting ground water, a piston pump connected to the main body of the sampling device and a filter for filtering ground water; the filter is connected with a sampling device for sampling bottle; the piston pump includes a pump body, a push-pull rod and a piston arranged in the pump body; the pump body is a hollow structure, and the inside of the pump body is provided with a container for the piston to move up and down. chamber and the inner partition plate of the water storage chamber for water storage; the pump body is provided with a water inlet pipe communicating with the water storage chamber, and the water inlet pipe is connected with the main body of the sampling device; the lower end of the push-pull rod It is connected with the piston through the through hole provided on the pump body. The groundwater integrated sampling device of the present invention has expanded application range, especially for medium and low permeability aquifers, reduces the cost of electricity for drilling and high-power pumps, integrates the pretreatment process, is convenient and efficient in operation, and preserves the properties of water samples.

Description

An integrated groundwater sampling device

technical field

The invention relates to the technical field of groundwater sampling devices, in particular to an integrated groundwater sampling device.

Background technique

Groundwater is an important water resource in my country, especially for coastal cities, inland cities and large and medium-sized cities in the north. However, with the sharp increase in water demand for industrial and agricultural production and living, the amount of sewage discharge has increased year by year, making the situation of poor groundwater and pollution in my country more and more severe. Then, rational development, improvement of utilization efficiency and optimization of groundwater quality will become particularly important for the green and sustainable development of my country's ecological economy. Among them, the long-term scientific monitoring and chemical analysis of groundwater is an essential basis for realizing this goal.

At present, my country's emphasis on groundwater sampling and investigation has been greatly increased, especially in the aspects of groundwater eutrophication and heavy metal detection, which are directly related to national life and health. However, the existing groundwater sampling techniques are mainly well-drilling and pumping methods, trench digging methods, and Pushpoint in-line insertion methods. Contaminated, or the obtained water sample is turbid and needs to be filtered again, and the operation time interval is long, so the water sample is easy to deteriorate. Therefore, reducing costs, improving efficiency, ensuring original properties, and streamlining the integrated pretreatment process are important factors to be considered in the design of groundwater sampling devices.

Contents of the invention

The purpose of the present invention is to provide a groundwater integrated sampling device to solve the time-consuming and labor-intensive sampling method in the prior art, the collection process is easily polluted by contact with surface water and air, or the obtained water sample is turbid before filtering and operating time The technical problem that water samples with long intervals are easy to deteriorate.

An integrated groundwater sampling device provided by the present invention comprises a sampling device main body for collecting ground water, a piston pump connected to the sampling device main body and a filter for filtering ground water; the filter is connected with a sampling device for sampling sampling bottle;

The piston pump includes a pump body, a push-pull rod and a piston disposed in the pump body; the pump body is a hollow structure, and the pump body is provided with a cavity and a cavity for the piston to move up and down. The internal partition orifice plate of the water storage chamber for water storage; the pump body is provided with a water inlet pipe communicating with the water storage chamber, and the water inlet pipe is connected to the main body of the sampling device;

The lower end of the push-pull rod is connected to the piston through a perforation provided on the pump body;

A water-stop ball for blocking the water inlet pipe is arranged in the water storage chamber; a restrictive hole shell is arranged in the water-storage chamber to limit the movement range of the water-stop ball;

The pump body is provided with a water outlet pipe communicating with the water storage chamber, and the water outlet pipe is connected with the filter through a communication pipe; a check valve for restricting the flow of water is arranged on the water outlet pipe.

Further, the main body of the sampling device includes a tank body for collecting groundwater and a pressure gauge arranged on the tank body for measuring pressure; the tank body is provided with a vent pipe for ventilation and a pipe connected to the water inlet pipe. The first water intake pipe; the ventilation pipe and the first water intake pipe are both provided with valves.

Further, the tank body is provided with an opening, and a sealing plug is provided at the opening, and the ventilation pipe, the first water intake pipe and the pressure gauge are all inserted into the tank body through the sealing plug ;

The vent pipe and the lower end of the pressure gauge are located at the upper part of the tank body, and the lower end of the first water intake pipe is located at the lower part of the tank body.

Further, the lower end of the main body of the sampling device is provided with an auger for deep underground, and the upper end of the main body of the sampling device is provided with a drill rod for rotating the main body of the sampling device.

Further, the main body of the sampling device includes an outer filter cartridge, an inner filter cartridge and a suction core pipe; an inner filter cartridge is arranged in the outer filter cartridge, and a water suction core pipe is arranged in the inner filter cartridge;

The drill rod is a hollow structure, and two openings are arranged on the drill rod, one of the openings communicates with the water pumping core pipe, and the other of the openings communicates with the water inlet pipe through a communication pipe.

Further, coarse sand for filtering is filled between the outer filter cartridge and the inner filter cartridge; a filter layer for filtering is provided between the inner filter cartridge and the pumping core pipe; outside the outer filter cartridge Wrapped with steel gauze for filtration.

Further, the filter includes a filter body, the filter body is a hollow structure, a filter cavity is arranged in the filter body, and a filter cavity is arranged in the filter cavity to divide the filter cavity into an upper filter cavity and an upper filter cavity. The inner filter plate of the lower filter chamber; the filter body is provided with a second water inlet pipe communicated with the upper filter chamber and a second outlet pipe communicated with the lower filter chamber; have valves;

The second water outlet pipe is connected with the sampling bottle through a shunt pipe.

Further, the distribution pipe includes a third water inlet pipe and at least one branch flow pipe; the third water inlet pipe is connected to the second water outlet pipe through a communication pipe, and the branch flow pipe is connected to the sampling bottle through a communication pipe connect;

A valve for switching is arranged on the branch flow pipe.

Further, the sampling bottle is provided with a fourth water inlet pipe and an exhaust pipe for exhaust or water; the fourth water inlet pipe communicates with the branch flow pipe through a communication pipe; on the exhaust pipe A valve is provided.

Further, the filter main body is provided with a liquid feeder, a liquid feed pipe communicating with the lower filter chamber is provided on the liquid feeder, and a valve is provided on the liquid feed pipe.

The groundwater integrated sampling device provided by the present invention, when in use, the main body of the sampling device reaches a predetermined depth, and the piston pump is used to extract the groundwater at the depth, and the water sample is sent to the filter, and after filtering (adding a stabilizer according to the situation) The water samples are stored in different sampling bottles;

During the whole sampling process, the device performs multiple filtrations on the groundwater samples, which can remove sediment and other tiny impurities and ensure the cleanliness and stability of the water samples;

From the collection, extraction, filtration, addition of reagents to storage of groundwater, the whole set of equipment effectively isolates the contamination of air and other water bodies, and effectively prevents the change of redox state of water samples and the volatilization of dissolved gases, ensuring the composition of water samples The original steady state and the accuracy of the collected data;

The whole sampling process, integrated flow operation, increases the sampling water volume, speeds up the sampling rate, and reduces time and labor costs;

The groundwater integrated sampling device of the present invention has expanded application range, especially for medium and low permeability aquifers, reduces the cost of electricity for drilling and high-power pumps, integrates the pretreatment process, is convenient and efficient in operation, and preserves the properties of water samples.

Description of drawings

In order to more clearly illustrate the specific implementation of the present invention or the technical solutions in the prior art, the following will briefly introduce the accompanying drawings that need to be used in the specific implementation or description of the prior art. Obviously, the accompanying drawings in the following description The drawings show some implementations of the present invention, and those skilled in the art can obtain other drawings based on these drawings without any creative work.

Fig. 1 is a schematic structural view of an integrated groundwater sampling device provided by an embodiment of the present invention;

Fig. 2 is the structural representation of the piston pump of a kind of groundwater integrated sampling device shown in Fig. 1;

Fig. 3 is a schematic structural view of the main body of the sampling device of the integrated groundwater sampling device shown in Fig. 1;

Fig. 4 is another kind of structural representation of the sampling device main body of a kind of groundwater integrated sampling device shown in Fig. 1;

Fig. 5 is the structural representation of the filter of a kind of groundwater integrated sampling device shown in Fig. 1;

Fig. 6 is a schematic structural view of a sampling bottle of the groundwater integrated sampling device shown in Fig. 1 .

Reference signs:

1 - piston pump; 2 - main body of sampling device; 3 - filter;

4 - sampling bottle; 5 - shunt tube; 6 - push-pull rod;

7-piston; 8-internal orifice plate; 9-outlet pipe;

10-container chamber; 11-water storage chamber; 12-restricted orifice shell;

13 - water stop ball; 14 - water inlet pipe; 15 - drill pipe;

16 - pumping core pipe; 17 - inner filter cartridge; 18 - outer filter cartridge;

19 - auger; 20 - upper filter cavity; 21 - lower filter cavity;

22 - the second water inlet pipe; 23 - the second water outlet pipe; 24 - connecting pipe;

25-internal filter plate; 26-filler; 27-filling pipe;

28 - the third water inlet pipe; 29 - branch flow pipe; 30 - exhaust pipe;

31-the fourth water inlet pipe; 32-tank body; 33-breather pipe;

34 - the first water intake pipe; 35 - pressure gauge; 36 - valve;

37 - seal blocked.

Detailed ways

The technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Apparently, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, or in a specific orientation. construction and operation, therefore, should not be construed as limiting the invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and should not be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that unless otherwise specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection. Connected, or integrally connected; it can be mechanically connected or electrically connected; it can be directly connected or indirectly connected through an intermediary, and it can be the internal communication of two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention in specific situations.

As shown in Figures 1 and 2, the groundwater integrated sampling device provided in this embodiment includes a sampling device main body 2 for collecting ground water, a piston pump 1 connected to the sampling device main body 2, and a filter 3 for filtering ground water; A sampling bottle 4 for sampling is connected to the filter 3;

Piston pump 1 comprises pump body, push-pull rod 6 and the piston 7 that is arranged in pump body; The inner partition orifice plate 8 of the water storage chamber 11 of water; the water inlet pipe 14 communicating with the water storage chamber 11 is arranged on the pump body, and the water inlet pipe 14 is connected with the main body 2 of the sampling device;

The lower end of the push-pull rod 6 is connected with the piston 7 through the perforation provided on the pump body;

A water stop ball 13 for blocking the water inlet pipe 14 is arranged in the water storage chamber 11; a limiting hole shell 12 for limiting the movement range of the water stop ball 13 is arranged in the water storage chamber 11;

The pump body is provided with a water outlet pipe 9 communicating with the water storage chamber 11, and the water outlet pipe 9 is connected with the filter 3 through a communication pipe 24;

In this embodiment, the sampling device main body 2 is connected to the sampling device main body 2 through the piston pump 1. After the sampling device main body 2 collects the ground water, the ground water is discharged into the filter 3 through the piston pump 1. After being filtered by the filter 3, the ground water flows into the sampling bottle. In 4, the sampling and collection of groundwater is completed.

The push-pull rod 6 pushes the piston 7 to move in the cavity 10. When the piston 7 moves upward, the water-stop ball 13 does not block the water inlet pipe 14, and groundwater can flow into the water storage chamber 11 through the water inlet pipe 14; when the push-pull rod 6. When the piston 7 is driven to move downward, due to the effect of the air pressure, the water stop ball 13 is pressed against the water inlet pipe 14 by the air pressure, so that the water in the water storage chamber 11 will not flow out from the water inlet pipe 14, but will flow out from the water outlet pipe 9. There is a check valve on the water pipe 9, so the water in the water storage chamber 11 can only flow out from the water outlet pipe 9, and cannot flow into the water storage chamber 11 from the water outlet pipe 9.

There are a plurality of holes on the restricting orifice shell 12, and water and gas can flow in and out from the restricting orifice shell 12; the restricting orifice shell 12 limits the water stop ball 13 to the water inlet pipe 14, ensuring that when the piston 7 moves downward, it can quickly Block the water inlet pipe 14 to prevent groundwater from flowing out from the water inlet pipe 14.

During the whole process, the air is isolated and the mixing of other water bodies is prevented, the change of the oxygen reduction state of the water sample and the volatilization of dissolved gas are effectively prevented, and the original stable state of the water sample composition and the accuracy of the collected data are guaranteed.

Referring to Fig. 3, further, the sampling device main body 2 includes a tank body 32 for collecting groundwater and a pressure gauge 35 arranged on the tank body 32 for measuring pressure; the tank body 32 is provided with a ventilation pipe 33 for ventilation The first water intake pipe 34 communicating with the water inlet pipe 14; the vent pipe 33 and the first water intake pipe 34 are both provided with a valve 36.

In this embodiment, the tank body 32 is provided with a pressure gauge 35 for measuring the internal pressure of the tank body 32, and the vent pipe 33 can discharge the gas in the tank body 32 by connecting the piston pump 1, so that the inside becomes a negative pressure state. It is beneficial for the groundwater outside the tank body 32 to flow into the tank body 32; the first water intake pipe 34 communicates with the water inlet pipe 14, and when water needs to be drawn, the groundwater in the tank body 32 is taken out by the piston pump 1.

The tank body 32 is a clay tank. The clay tank has a dense micro-pore structure, which has a good effect of "water catchment and mud protection" for the collection of groundwater in low-permeability sediment layers; low cost and good water catchment effect, especially suitable for low-permeability mudflats Long-term observation and collection of medium and groundwater samples; the tank body 32 can also be made of sintered PE material, which is a microporous material sintered by low-pressure ultra-high molecular weight polyethylene material, which also has a good interception and filtration effect on ultra-precision particles.

When in use, the tank body 32 is buried at a predetermined depth, the vent pipe 33 is connected to the piston pump 1, the valve 36 on the vent pipe 33 is opened, the valve 36 on the first water intake pipe 34 is closed, and the push-pull rod 6 is pushed and pulled. , so that the gas in the tank body 32 is drawn out; after the gas extraction is completed, the valve 36 on the vent pipe 33 is closed; the inside of the tank body 32 is in a negative pressure state, and it is static for a period of time. The increase of the readings is used to obtain the volume of groundwater collected in the tank body 32. If the water volume is less than the sampling volume, check the pressure gauge 35 irregularly and repeatedly reduce the pressure in the tank body 32; The air pipe 33 and the valve 36 on the first water intake pipe 34; the groundwater in the tank body 32 is transported to the filter 3 by the piston pump 1 for sampling.

Referring to Fig. 3, further, the tank body 32 is provided with an opening, and a sealing plug 37 is provided at the opening, and the ventilation pipe 33, the first water intake pipe 34 and the pressure gauge 35 are all inserted into the tank body 32 through the sealing plug 37. middle;

The lower ends of the ventilation pipe 33 and the pressure gauge 35 are located at the upper part of the tank body 32 , and the lower ends of the first water intake pipe 34 are located at the lower part of the tank body 32 .

In this embodiment, the upper opening of the tank body 32 is provided with a plugging plug 37 for plugging, which can ensure the sealing of the tank body 32. On the plugging plug 37, a vent pipe 33 for ventilation and a first water intake pipe 34 are provided. And pressure gauge 35, the first water intake pipe 34 goes deep into tank body 32 inner depths, when sampling like this, can take out the groundwater inside tank body 32, what can the groundwater collection of tank body 32 be cleaner; Ventilation pipe 33 lower ends Located at the upper end of the inside of the tank body 32, when the tank body 32 is pumped repeatedly, it will prevent the collected groundwater from being sucked away.

Referring to FIG. 4 , further, the lower end of the sampling device main body 2 is provided with an auger 19 for going deep into the ground, and the upper end of the sampling device main body 2 is provided with a drill rod 15 for rotating the sampling device main body 2 .

In this embodiment, an auger 19 is provided at the lower end of the sampling device main body 2, and the entire sampling device main body 2 is rotated by the drill rod 15. By rotating the auger 19, the sampling device main body 2 can go deep into the ground to collect and sample groundwater.

Based on the foregoing embodiments, further, the sampling device main body 2 includes an outer filter cartridge 18, an inner filter cartridge 17, and a pumping core pipe 16; an inner filter cartridge 17 is arranged in the outer filter cartridge 18, and There is a pumping core pipe 16;

The drill rod 15 is a hollow structure, and two openings are arranged on the drill rod 15 , one opening is communicated with the pumping core pipe 16 , and the other opening is communicated with the water inlet pipe 14 through the communication pipe 24 .

In this embodiment, a plurality of filter holes are provided on the outer filter cartridge 18 and the inner filter cartridge 17, and the center of the inner filter cartridge 17 is provided with a pumping core pipe 16, which is connected to the drill pipe 15, and the piston pump 1 Connect the drill pipe 15 through the connecting pipe 24, and transport the groundwater collected in the inner filter cartridge 17 to the piston pump 1 through the drill pipe 15 with the pumping core pipe 16 to realize the collection of groundwater.

On the basis of the foregoing embodiments, further, coarse sand for filtering is filled between the outer filter cartridge 18 and the inner filter cartridge 17; a filter layer for filtering is provided between the inner filter cartridge 17 and the pumping core pipe 16; The filter cartridge 18 is wrapped with a filter screen for filtering.

In order to collect cleaner groundwater, the space between the outer filter cartridge 18 and the inner filter cartridge 17 is filled with coarse sand, and a filter element or a pure sponge are set between the inner filter cartridge 17 and the pumping core pipe 16; Wrap the filter, and the filter can use micro-mesh steel gauze; in this way, the filter, coarse sand and sponge form a three-stage filter, so that the collected groundwater can initially filter out impurities. In addition to the purpose of filtering, the filter element and pure sponge can also There is the purpose of holding water, so that the filter core and sponge collect groundwater in the inner filter cartridge 17, which is beneficial to the suction core pipe 16 to absorb water in the inner filter cartridge 17.

Referring to Fig. 5, further, the filter 3 includes a filter body, the filter body is a hollow structure, a filter chamber is provided in the filter body, and a filter chamber is provided in the filter chamber to divide the filter chamber into an upper filter chamber 20 and a filter chamber. The inner filter plate 25 of the lower filter chamber 21; the filter body is provided with a second water inlet pipe 22 communicated with the upper filter chamber 20 and a second water outlet pipe 23 communicated with the lower filter chamber 21; on the second water outlet pipe 23 provided with a valve 36;

The second water outlet pipe 23 is connected with the sampling bottle 4 through the shunt pipe 5 .

In this embodiment, the main body of the filter is a hollow structure, and the piston pump 1 discharges the collected groundwater into the upper filter chamber 20 through the outlet pipe 9, and after being filtered by the inner filter plate 25, the groundwater enters the lower filter chamber 21. In order to better filter the groundwater, a cellulose acetate membrane for filtering is laid on the inner filter plate 25 to achieve the purpose of the fourth layer of finely filtering the groundwater.

Volume scale is marked on the outer wall of the filter main body; wherein the second water inlet pipe 22 is arranged on the top cover on the filter main body, and the top cover is threadedly connected with the filter main body; it is convenient to replace the inner filter plate 25 for laying filter membrane; the upper part of the filter main body is cylindrical, and the lower part is funnel-shaped. When the reagent is added to the funnel-shaped filter main body through the liquid adder 26, the funnel-shaped filter main part can play a role in the water sample and the filter body. The effect of uniform mixing of added reagents.

Referring to Fig. 6, further, the branch pipe 5 includes a third water inlet pipe 28 and at least one branch flow pipe 29; the third water inlet pipe 28 is connected with the second water outlet pipe 23 through the communication pipe 24, and the branch flow pipe 29 is connected through the communication pipe 24 is connected with sampling bottle 4;

A valve 36 for switching is provided on the branch flow pipe 29 .

In order to be able to connect a plurality of sampling bottles 4, the second outlet pipe 23 is connected to a plurality of sampling bottles 4 through the shunt pipe 5, and a plurality of branch flow pipes 29 can be set on the third water inlet pipe 28 of the shunt pipe 5, each branch flow pipe 29 Connect a sampling bottle 4; Can sample a plurality of like this; All be provided with valve 36 on each branch flow pipe 29, cooperate between each valve 36, guarantee that every time groundwater only can flow in a sampling bottle 4, in After one sampling bottle 4 collects the sample, the groundwater flows into the next sampling bottle 4 by regulating the valve 36, so that multiple samples can be taken in turn.

Based on the foregoing embodiment, further, the sampling bottle 4 is provided with a fourth water inlet pipe 31 and an exhaust pipe 30 for exhaust or water; the fourth water inlet pipe 31 communicates with the branch flow pipe 29 through the communication pipe 24 ; The exhaust pipe 30 is provided with a valve 36 .

In the present embodiment, the sampling bottle 4 is provided with an exhaust pipe 30 for discharging gas in the sampling bottle 4, and the branch flow pipe 29 communicates with the fourth water inlet pipe 31. The valves 36 on the corresponding branch flow pipes 29 close the valves 36 on other branch flow pipes 29, the groundwater is filtered through the filter 3, flows into the third water inlet pipe 28 by the second water outlet pipe 23, and passes through the branch valve 36 that has been opened. The branch pipe 29 flows into the sampling bottle 4, and the valve 36 on the exhaust pipe 30 on the sampling bottle 4 is also opened at this time, when the groundwater flows into the sampling bottle 4 like this, the gas in the sampling bottle 4 is discharged from the exhaust pipe 30. When the sampling is completed, the valve 36 on the exhaust pipe 30 is closed to prevent air from entering the sampling bottle 4 from the exhaust pipe 30 and affecting the sample.

After sampling in the sampling bottle 4, disconnect the connecting pipe 24 connected between the branch flow pipe 29 and the fourth water inlet pipe 31, and then seal it up.

Two branch flow pipes 29 can be set on the third water inlet pipe 28 on the flow pipe 5, so that each branch flow pipe 29 is connected with a sampling bottle 4, so that when in operation, samples can be taken in turn, and one sampling bottle 4 After sampling, when the sampling bottle 4 is replaced, the sampling bottle 4 on the other branch flow pipe 29 continues sampling; repeated alternate sampling like this can collect multiple samples.

Based on the above-mentioned embodiment, further, the filter body is provided with a liquid feeder 26, and a liquid feed pipe 27 communicating with the lower filter chamber 21 is provided on the liquid feeder 26, and a liquid feed pipe 27 is provided on the liquid feed pipe 27. valve 36.

In this embodiment, the filter 3 is provided with a liquid feeder 26 for adding liquid, and there is a reagent (such as: acid, chloroform or other stabilizers) for adding in the feeder, and the reagent is passed through the liquid feeder in proportion. The pipe 27 is injected into the lower filter cavity 21, and the groundwater sample is evenly mixed in the lower filter cavity 21, effectively avoiding air contact and contamination by other impurities.

Also mark volume scale on the liquid adder 26, can control the ratio of adding reagent like this.

The groundwater integrated sampling device provided by the present invention, when in use, the sampling device main body 2 reaches a predetermined depth, utilizes the piston pump 1, extracts the groundwater at the depth, and sends the water sample to the filter 3, after filtering (add according to the situation) The water sample of stabilizing agent) enters in different sampling bottles 4 by shunt pipe 5 and seals up;

During the whole sampling process, the device performs multiple filtrations on the groundwater samples, which can remove sediment and other tiny impurities and ensure the cleanliness and stability of the water samples;

From the collection, extraction, filtration, addition of reagents to storage of groundwater, the whole set of equipment effectively isolates the contamination of air and other water bodies, and effectively prevents the change of redox state of water samples and the volatilization of dissolved gases, ensuring the composition of water samples The original steady state and the accuracy of the collected data;

The whole sampling process, integrated flow operation, increases the sampling water volume, speeds up the sampling rate, and reduces time and labor costs;

The groundwater integrated sampling device of the present invention has expanded application range, especially for medium and low permeability aquifers, reduces the cost of electricity for drilling and high-power pumps, integrates the pretreatment process, is convenient and efficient in operation, and preserves the properties of water samples.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, rather than limiting them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: It is still possible to modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the technical solutions of the various embodiments of the present invention. scope.

Claims (7)

1. a kind of underground water integrates sampling apparatus, which is characterized in that sampling apparatus main body and institute including being used to gather underground water The piston pump and the filter for filtering underground for stating the connection of sampling apparatus main body；It is connected with to sample on the filter Sampling bottle；

The piston pump includes the pump housing, push-pull rod and is arranged on the in vivo piston of pump；The pump housing is hollow structure, in institute State be provided in the pump housing pump body is separated into the cavity volume that moves up and down for piston and in the water storage cavity of water storage every Orifice plate；The water inlet pipe connected with water storage cavity is provided on the pump housing, the water inlet pipe is connected with the sampling apparatus main body；

The push-pull rod lower end is connected by the perforation being arranged on the pump housing with the piston；

It is provided with to block the sealing ball of water inlet pipe in the water storage cavity；Restricted sealing ball is set in the water storage cavity The limiting holes shell of scope of activities；

The outlet pipe connected with water storage cavity is provided on the pump housing, the outlet pipe is connected by communicating pipe and the filter It connects；Set on the outlet pipe restricted current to check (non-return) valve；

The sampling apparatus main body lower end is provided with for the auger under in depth, is set in the sampling apparatus main body upper end It is useful for rotating the drilling rod of the sampling apparatus main body；

The sampling apparatus main body includes outer filter cylinder, interior filter cylinder and core pipe of drawing water；Interior filter cylinder is provided in the outer filter cylinder, in institute It states in interior filter cylinder and is provided with core pipe of drawing water；

The drilling rod is hollow structure, is set on drilling rod there are two opening, and an opening is connected with the core pipe of drawing water, Another described opening with the water inlet pipe by connecting communicating pipe；

The sampling apparatus main body includes gathering the tank body of underground water and is arranged on tank body to measure the pressure of pressure Meter；The snorkel for ventilation and the first intake pipe for being connected with the water inlet pipe are provided on the tank body；The snorkel Valve is both provided with on first intake pipe.

2. underground water according to claim 1 integrates sampling apparatus, which is characterized in that opening is provided on the tank body, The opening is provided with closure plug, the snorkel, first intake pipe and the pressure gauge both pass through the closure Plug is inserted into tank body；

The snorkel is located at the top of the tank body with the pressure gauge lower end, and the first intake pipe lower end is located at the tank Body lower part.

3. underground water according to claim 1 integrates sampling apparatus, which is characterized in that the outer filter cylinder and the interior filter cylinder Between be filled with for filtering coarse sand；The filter layer for filtering is provided between the interior filter cylinder and core pipe of drawing water；Institute It states outer filter cylinder and is wrapped with steel sand net for filtering.

4. underground water according to claim 1 integrates sampling apparatus, which is characterized in that the filter includes filter master Body, the filter body are hollow structure, are provided with filter chamber in the filter body, are set in the filter chamber Have and filter chamber is divided into upper filter chamber and lower filter chamber every filter plate；It is provided on the filter body and upper filtering Second water inlet pipe of chamber connection and the second outlet pipe connected with the lower filter chamber；Valve is provided on second outlet pipe Door；

Second outlet pipe is connected by isocon with the sampling bottle.

5. underground water according to claim 4 integrates sampling apparatus, which is characterized in that the isocon includes the 3rd water inlet Pipe and at least one branch's flow tube；3rd water inlet pipe is connected by communicating pipe with second outlet pipe, the affluent-dividing Pipe with the sampling bottle by being connected communicating pipe；

The valve for switch is provided in branch's flow tube.

6. underground water according to claim 5 integrates sampling apparatus, which is characterized in that is provided with the 4th on the sampling bottle Water inlet pipe and for be vented or water exhaust pipe；4th water inlet pipe is connected with branch's flow tube by communicating pipe；Institute It states and valve is provided on exhaust pipe.

7. sampling apparatus is integrated according to claim 4-6 any one of them underground water, which is characterized in that the filter master Charger is provided on body, the liquid-feeding tube connected with lower filter chamber is provided on the charger, is set on the liquid-feeding tube It is equipped with valve.