阅读说明：本技术 一种地下水分层抽水试验模块化装置 (Underground water layering pumping test modularization device ) 是由 袁伟 王成锋 王东辉 郑向华 罗运祥 胡亚召 刘宗祥 潘国耀 王向东 袁小铭 于 2019-11-14 设计创作，主要内容包括：本发明公开了一种地下水分层抽水试验模块化装置,包括套管、测试管道、潜水泵、上封隔器、下封隔器,套管上均匀开设有用于透水的通孔,还包括连接头部件和潜水泵外壳。本发明装置的上封隔器、潜水泵外壳、下封隔器在套管内通过同样的连接头部件连接,实现模块化组装,装配方式和连接顺序依据地层结构和实验深度进行优化配置,各个部件受损后易于快速更换,延长抽水设备稳定性和使用寿命,同时可以可靠实现深地层中的抽水试验。(The invention discloses a modularized device for a groundwater stratified pumping test, which comprises a sleeve, a test pipeline, a submersible pump, an upper packer and a lower packer, wherein through holes for water permeation are uniformly formed in the sleeve, and the modularized device also comprises a connector part and a submersible pump shell. The upper packer, the submersible pump shell and the lower packer of the device are connected in the sleeve through the same connector parts, so that modular assembly is realized, the assembly mode and the connection sequence are optimally configured according to the stratum structure and the experimental depth, the parts are easy to replace quickly after being damaged, the stability and the service life of the pumping equipment are prolonged, and the pumping test in a deep stratum can be reliably realized.)

1. The underground water stratified pumping test modularization device comprises a sleeve (1), a test pipeline (2), a submersible pump (3), an upper packer (4) and a lower packer (5), wherein through holes for water permeation are uniformly formed in the sleeve (1), and the underground water stratified pumping test modularization device is characterized by further comprising a connector component (6) and a submersible pump protection cover (7), wherein the submersible pump protection cover (7) is provided with a water inlet hole; the submersible pump (3) is fixedly arranged in the submersible pump protective cover (7);

go up packer (4), built-in immersible pump safety cover (7) that have immersible pump (3), packer (5) down loops through connector part (6) series connection from top to bottom in sleeve pipe (1), test pipeline (2) link up the delivery port that packer (4) connected immersible pump (3) go up sleeve pipe (1) outer wall position that packer (4) and lower packer (5) correspond the position and be equipped with stagnant water expansion ring (41) and stagnant water expansion ring (51) down respectively.

2. The underground water layering pumping test modular device according to claim 1, wherein the upper packer (4), the submersible pump protective cover (7) and the lower packer (5) are provided with interface structures matched with the connector component (6).

3. A test modular device for stratified pumping of groundwater according to claim 1, characterized in that the connection head piece (6) is provided with a sealing.

4. A test modular device for stratified pumping of groundwater according to claim 1, characterized in that the connector part (6) is a threaded connection sleeve.

5. The underground water layering water pumping test modular device according to any one of claims 1-4, characterized in that the upper water stopping expansion ring (41) and the lower water stopping expansion ring (51) are made of water swelling rubber materials, and the upper water stopping expansion ring (41) and the lower water stopping expansion ring (51) are elastically nested on the outer wall of the casing (1).

6. The underground water layering water pumping test modular device according to any one of claims 1-4, characterized in that the upper packer (4) and the lower packer (5) are of a closed cavity structure made of flexible materials, and are respectively connected with an external pressurizing device.

7. The underground water stratified pumping experiment modular device according to any one of claims 1 to 4, wherein the submersible pump (3) is connected with an external power supply through a cable.

8. The underground water stratified pumping test modularization device comprises a sleeve (1), a test pipeline (2), a submersible pump (3), an upper packer (4) and a lower packer (5), wherein through holes for water permeation are uniformly formed in the sleeve (1), and the underground water stratified pumping test modularization device is characterized by further comprising a connector component (6), a submersible pump protection cover (7) and a submersible pump water inlet component (8), wherein the submersible pump (3) is fixedly installed in the submersible pump protection cover (7);

a submersible pump protective cover (7) internally provided with a submersible pump (3), an upper packer (4), a submersible pump water inlet component (8) and a lower packer (5) are sequentially connected in series through a connector component (6) from top to bottom in a sleeve (1); a water outlet of the submersible pump (3) is connected with the test pipeline (2), and a water inlet of the submersible pump (3) is connected with a water inlet component (8) of the submersible pump after penetrating through the upper packer (4); and an upper water-stopping expansion ring (41) and a lower water-stopping expansion ring (51) are respectively arranged at the outer wall positions of the casing pipe (1) at the corresponding positions of the upper packer (4) and the lower packer (5).

9. The underground water layering pumping test modular device according to claim 8, wherein the upper packer (4), the submersible pump protective cover (7), the submersible pump water inlet component (8) and the lower packer (5) are provided with interface structures matched with the connector component (6).

10. The modular device for the stratified pumping test of underground water according to claim 8 or 9, characterized in that the submersible pump water inlet part (8) is tubular and provided with a water inlet hole.

Technical Field

The invention relates to the field of hydrogeology, in particular to a modular device for a stratified pumping test of underground water.

Background

In the hydrogeology field, groundwater layering is experimental vital, and relevant hydrogeology parameter in each aquifer of different degree of depth in the underground can effectively be obtained in this experiment, to rational evaluation, utilization and protection groundwater resource, has important science and practical meaning.

At present, what current layering adopted the experiment of adopting is the integral type equipment that upper and lower packer connect the immersible pump, and whole equipment is placed inside the sleeve pipe, when carrying out the multilayer test of drawing water underground, the immersible pump is connected with upper and lower part as atress piece adapting piece directness, puts the purpose section of drawing water under the immersible pump, then carries out the seat to upper and lower packer and seals the operation, later opens the water pump and just can draw water the test. In practical application, however, the submersible pump is always a short plate in the system, and due to the limitation of the bore diameter of the drill hole for the water-layer water pumping test, the submersible pumps for the water-layer water pumping test are all customized small-diameter submersible pumps, the lowering working depth is limited, and when the water-pumping test is needed to be deep, the water-pumping operation cannot be implemented; if a submersible pump with large submergence depth is adopted, the volume size of the submersible pump cannot meet the requirement of being placed into a drilled hole, and then the submersible pump is used as an upper bearing part and a lower bearing part, so that the structure of the submersible pump is damaged by the downward placement and the lifting of the integrated water pumping equipment after the drilled hole is not right or the well inclination exceeds a certain range; in order to ensure that the submersible pump is well stressed, the submersible pump must be designed and customized independently, so that the use of the water pump is greatly limited in the later period.

Disclosure of Invention

In order to overcome the defects of the existing underground water layering water pumping test device, the invention provides an underground water layering water pumping test modular device.

The technical scheme adopted by the invention for solving the technical problems is as follows: the modularized device for the underground water layering pumping test comprises a sleeve, a test pipeline, a submersible pump, an upper packer and a lower packer, wherein through holes for water permeation are uniformly formed in the sleeve; the submersible pump is fixedly arranged in the submersible pump protective cover;

go up packer, built-in immersible pump safety cover, the lower packer that has the immersible pump loop through connector part series connection at intraductal top-down of cover, the test tube says through the delivery port that the packer connects the immersible pump go up the packer and the sleeve pipe outer wall position that the packer corresponds the position down is equipped with respectively and ends water expansion ring and lower stagnant water expansion ring.

Further preferably, go up packer, immersible pump safety cover and packer down and all be equipped with connector part assorted interface structure, be convenient for assemble the change of spare part to the device at the scene.

Preferably, the connector part is provided with a sealing element, so that the sealing reliability of connection of all parts is enhanced.

Preferably, the connector part is a threaded connection sleeve, and quick connection and installation on a construction site are realized.

Preferably, the upper water-stop expansion ring and the lower water-stop expansion ring are made of water-swellable rubber materials, and are elastically nested on the outer wall of the sleeve through the upper water-stop expansion ring and the lower water-stop expansion ring, so that the water can be sealed in a layered mode in the gap outside the sleeve.

Preferably, the upper packer and the lower packer are of closed cavity structures made of flexible materials and are respectively connected with external pressurizing devices, and layered closed water stop can be performed in the casing by controlling the outside of the well.

Preferably, the submersible pump is connected with an external power supply through a cable, so that the submersible pump can be conveniently pumped out of the well.

The invention provides a groundwater layered pumping test modularized device with a submersible pump as an upper part, which comprises a sleeve, a test pipeline, the submersible pump, an upper packer and a lower packer, wherein the sleeve is uniformly provided with through holes for water permeation, and also comprises a connector part, a submersible pump protective cover and a submersible pump water inlet part, and the submersible pump is fixedly arranged in the submersible pump protective cover;

a submersible pump protective cover, an upper packer, a submersible pump water inlet component and a lower packer which are internally provided with a submersible pump are sequentially connected in series through a connector component from top to bottom in the sleeve; the water outlet of the submersible pump is connected with the test pipeline, and the water inlet of the submersible pump is connected with the water inlet component of the submersible pump after penetrating through the upper packer; and the outer wall of the sleeve at the corresponding positions of the upper packer and the lower packer is respectively provided with an upper water stopping expansion ring and a lower water stopping expansion ring.

Preferably, go up packer, immersible pump safety cover, immersible pump and all be equipped with connector part assorted interface structure down the packer, be convenient for assemble the change of device and spare part at the scene.

Preferably, the submersible pump water inlet component is tubular and provided with a water inlet hole, the submersible pump is used for pumping water through the submersible pump water inlet component, and the water inlet depth position of the submersible pump extends downwards.

The invention has the beneficial effects that: the upper packer, the submersible pump protective cover and the lower packer of the device are connected in the sleeve through the same connector parts, so that modular assembly is realized, the assembly mode and the connection sequence are optimally configured according to the stratum structure and the experimental depth, each part is easy to replace quickly after being damaged, the stability and the service life of the pumping equipment are prolonged, and the pumping test in a deep stratum can be reliably realized.

The specific innovation and the technical effect are as follows: 1. the immersible pump is installed in the immersible pump safety cover, and the immersible pump is through the interface structure with the immersible pump safety cover and is connected, and the immersible pump can be changed wantonly in same diameter specification series, and the immersible pump need not reuse special customization model specification, can select suitable immersible pump according to different groundwater reserves, and the later stage is used and is maintained and change the convenience, has improved the reliability and the continuity of the test of drawing water greatly.

2. The submersible pump protective cover bears stress, the submersible pump does not bear acting force of connecting the upper part and the lower part, the submersible pump does not need to be customized, the submersible pump is not easy to deform or damage, the failure rate is greatly reduced, and the submersible pump is more stable to use.

3. Each part can be as the single module of equipment, connects through same connector part, through different equipment methods between the part module, can realize immersible pump overhead, the put technical scheme in, can realize the experimental operation of different grade type aquifer water extraction, no longer receives the technical limitation of water pump parameter.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the structure of the joint assembly of the present invention;

fig. 3 is a schematic diagram of an embodiment of the present invention.

Parts and numbering in the figures:

1-a sleeve; 2-testing the pipeline; 3-a submersible pump; 4-setting a packer; 41-upper water stop expansion ring; 5-lower packer; 51-lower water-stop expansion ring; 6-a connector part; 7-submersible pump protective cover; 8-submersible pump water inlet component.

Detailed Description

The invention is further illustrated with reference to the following figures and examples.