CN204882315U - Radial fluid flow simulation experiment device - Google Patents
Radial fluid flow simulation experiment device Download PDFInfo
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- CN204882315U CN204882315U CN201520464385.7U CN201520464385U CN204882315U CN 204882315 U CN204882315 U CN 204882315U CN 201520464385 U CN201520464385 U CN 201520464385U CN 204882315 U CN204882315 U CN 204882315U
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Abstract
The utility model relates to a seepage flow experimental facilities technical field especially relates to a radial fluid flow simulation experiment device. The utility model discloses a radial fluid flow simulation experiment device's sandpack column passes through peristaltic pump and water circulating system intercommunication, and water circulating system passes through the peristaltic pump and realizes that the inside liquid circulation of sandpack column flows, on the sandpack column still detachable insert and have the pressure -measuring pipe that is used for monitoring the pressure value immediately. This radial fluid flow simulation experiment device effectively enlarges the change scope of flow, and simple and convenient accurate metered flow has increased the use of flow model in porous media simultaneously, can consider different well patterns under, seepage flow law under the same flow and the injection rate circumstances.
Description
Technical field
The utility model relates to Seepage Experiment equipment technical field, particularly relates to a kind of radial fluid flow analogue experiment installation.
Background technology
When underground water permeates in soil body hole, due to the effect of osmotic resistance, along the loss of Cheng Biran along with energy.In order to disclose the Percolation Law of water in the soil body, French slip-stick artist's darcy, through a large amount of experimental studies, is summed up and is shown that the mutual relationship between infiltration energy loss and percolation flow velocity is Darcy's law for 1856.Planar radial Seepage Experiment is the embodiment of Darcy's law under Radial Flow Through Porous Media mode, can by the understanding of this experiment intensification to Darcy's law.
As shown in Figure 1, existing radial fluid flow analogue means is made up of parts such as percolation model, pressure head water tumbler, water circulation system, model support and flow processs, percolation model is made up of sand-packed model 2 and piezometric tube 1 two parts, sand-packed model 2 is that organic glass material is made, appearance is transparent, and to can be used for the flowing of observing and nursing internal flow dynamic, the wherein diameter 340mm of sand-packed model 2; Adjacent two pressure tap centre distances are 50mm, fall head is 600mm, piezometric tube 1 is fixed in sand-packed model 2, pressure head water tumbler is to provide the spacing water tumbler of fixation pressure, water tumbler to be two-layerly made up of inside and outside, and interior cup 6 provides fixation pressure, and outer cup 5 reclaims the water of overflow, and be communicated with water tank 4 by water pump 7, form water circulation system.The outlet of sand-packed model 2 directly accesses graduated cylinder 3, and by stopwatch computing time, the volume computing passed through within the regular hour goes out the flow of working fluid.
Existing radial flow equipment simply can only measure the situation that the water surface rises under certain pressure head, and when after liquid level stabilizing, draining controls flow, the relation of calculated flow rate and pressure reduction, its problem one is fall head restriction, and measurement range is little, can not measure injection rate IR relatively large time pressure reduction and flow; It two is to consider the change along stroke pressure under different well pattern and well spacing condition.Its three sand-packed models disk is less, and the middle plexi-glass tubular arranged is less, can not simulate the change of longer distance downforce well.
Utility model content
(1) technical matters that will solve
The technical problems to be solved in the utility model there is provided a kind of radial fluid flow analogue experiment installation, the change scope of effective expansion flow, easy accurate metered flow, add the purposes of percolation model simultaneously, under different well pattern can be considered, percolation law in same flow and injection rate situation.
(2) technical scheme
In order to solve the problems of the technologies described above, the utility model provides a kind of radial fluid flow analogue experiment installation, comprise sand-packed model, water circulation system and peristaltic pump, described sand-packed model is communicated with water circulation system by peristaltic pump, and described water circulation system realizes flowing with the liquid-circulating of described sand-packed model inside by peristaltic pump; Also dismountablely on described sand-packed model insert the vertical piezometric tube had for monitoring pressure value.
Wherein, described water circulation system comprises water tank and water pump, and described water tank is communicated with the entrance of sand-packed model by water pump, and the outlet of described sand-packed model is communicated with water tank by peristaltic pump.
Wherein, also comprise for described water circulation system provides the pressure head water tumbler of power, described pressure head water tumbler is communicated with the entrance of sand-packed model by water circulation system, and described pressure head water tumbler is arranged on the position higher than described sand-packed model.
Wherein, described pressure head water tumbler is provided with a water inlet and two water delivering orifices, the water inlet of described pressure head water tumbler is communicated with water tank by described water pump, and two described water delivering orifices are communicated with water tank respectively with described sand-packed model, described water tank also with the outlet of described sand-packed model.
Wherein, described pressure head water tumbler comprises inner cup and the outer cup, and the inside of described outer cup is located at by described interior glass holder, and described interior cup is used for providing fixation pressure, and described outer cup is for reclaiming the water of overflow; Described interior cup is communicated with the water inlet of described pressure head water tumbler, and is also communicated with a water delivering orifice of described pressure head water tumbler, and another water delivering orifice of described pressure head water tumbler is communicated with described outer cup.
Wherein, the quantity of described piezometric tube is multiple, and multiple described piezometric tube becomes M shape to be evenly distributed on described sand-packed model.
Wherein, described piezometric tube comprises force pipe and pit shaft, and described pit shaft is inserted and is embedded in described sand-packed model, and described force pipe is communicated with pit shaft, and described force pipe is provided with scale.
Wherein, the material of described force pipe and sand-packed model is organic glass, and the material of described pit shaft is stainless steel.
Wherein, the bottom of the junction of described sand-packed model and piezometric tube is dismountable is provided with plug, and described plug is for regulating and controlling the opening and closing of the junction of described sand-packed model and piezometric tube.
Wherein, the flow range of described peristaltic pump is 25ml/min ~ 100ml/min.
(3) beneficial effect
Technique scheme of the present utility model has following beneficial effect: the sand-packed model of radial fluid flow analogue experiment installation of the present utility model is communicated with water circulation system by peristaltic pump, and water circulation system realizes the liquid-circulating flowing of sand-packed model inside by peristaltic pump; Also dismountablely on sand-packed model insert the vertical piezometric tube had for monitoring pressure value.This radial fluid flow analogue experiment installation both can provide power for water circulation system by peristaltic pump, effectively can expand again the change scope of flow, easy accurate metered flow, eliminate the trouble measured with graduated cylinder, and empirical flow can be changed more efficiently, accelerate conventional efficient; Add the purposes of percolation model simultaneously, under different well pattern can be considered, the percolation law in same flow and injection rate situation; The increase of piezometric tube density, make to see clearly along stroke pressure change, and measurement range have also been obtained effective increase.
Accompanying drawing explanation
Fig. 1 is the structural representation of the radial fluid flow analogue means of prior art;
Fig. 2 is the structural representation of the radial fluid flow analogue experiment installation of the utility model embodiment;
Fig. 3 is the vertical view of the sand-packed model of the utility model embodiment.
Wherein, 1, piezometric tube; 2, sand-packed model; 3, graduated cylinder; 4, water tank; 5, outer cup; 6, interior cup; 7, water pump; 8, peristaltic pump.
Embodiment
Below in conjunction with drawings and Examples, embodiment of the present utility model is described in further detail.Following examples for illustration of the utility model, but can not be used for limiting scope of the present utility model.
In description of the present utility model, except as otherwise noted, the implication of " multiple " is two or more.Term " on ", D score, "left", "right", " interior ", " outward ", " front end ", " rear end ", " head ", the orientation of the instruction such as " afterbody " or position relationship be based on orientation shown in the drawings or position relationship, only the utility model and simplified characterization for convenience of description, instead of the device of instruction or hint indication or element must have specific orientation, with specific azimuth configuration and operation, therefore can not be interpreted as restriction of the present utility model.For the ordinary skill in the art, concrete condition the concrete meaning of above-mentioned term in the utility model can be understood.
As shown in Figure 2, the sand-packed model 2 of the radial fluid flow analogue experiment installation described in the present embodiment is communicated with water circulation system by peristaltic pump 8, water circulation system realizes flowing with the liquid-circulating of sand-packed model 2 inside by peristaltic pump 8, also dismountablely on sand-packed model 2 insert the vertical piezometric tube 1 had for monitoring pressure value, peristaltic pump 8 both can provide power support for the liquid flow in water circulation system, can realize again the accurate measurement of the pressure to pressure tap needed for the experiment on sand-packed model 2, flow velocity and flow and accurately show.Meanwhile, this radial fluid flow analogue experiment installation effectively can also expand the change scope of flow by peristaltic pump 8, easy accurate metered flow, eliminates the trouble measured with graduated cylinder 3, and can change empirical flow more efficiently, accelerates conventional efficient; Add the purposes of percolation model simultaneously, under different well pattern can be considered, the percolation law in same flow and injection rate situation.
Reliable and stable in order to ensure the liquid-circulating of radial fluid flow analogue experiment installation, in the present embodiment, take water as the liquid of circulation, water tank 4 in water circulation system is communicated with the entrance of sand-packed model 2 by water pump 7, the outlet of sand-packed model 2 is communicated with water tank 4 by peristaltic pump, make current in water tank 4 behind the inside of sand-packed model 2, return in water tank 4.
The water circulation system of the present embodiment, except peristaltic pump 8 can be relied on as except the liquid-circulating power source of water circulation system, can also arrange pressure head water tumbler as liquid-circulating power source simultaneously, carry out the liquid-circulating of water circulation system with auxiliary peristaltic pump 8.Pressure head water tumbler is communicated with by the entrance of water circulation system with sand-packed model 2, and pressure head water tumbler is arranged on the position higher than sand-packed model 2; The outlet of sand-packed model 2 is connected with peristaltic pump 8, and pressure head water tumbler and peristaltic pump 8 all can provide Water circulation hydrodynamics for this experimental provision.
The flow range of the peristaltic pump 8 of the present embodiment is preferably 25ml/min ~ 100ml/min, can experimentally require to carry out flow regulation with actual conditions during experiment.Peristaltic pump 8 be arranged so that water circulation system dynamical stability, continuation is strong, and peristaltic pump 8 directly can read the Water discharge flow speed of sand-packed model 2, flow and force value, accurately can measure the water flow of sand-packed model 2 and pressure reduction, the measurement range of this radial fluid flow analogue experiment installation is increased, and its measurement range and degree of accuracy are obviously better than graduated cylinder 3; Meanwhile, add the purposes of this radial fluid flow analogue experiment installation, not only can carry out conventional Seepage Experiment, under also can considering different well pattern, percolation law when same flow and injection rate.
In the present embodiment, pressure head water tumbler is provided with a water inlet and two water delivering orifices, and the water inlet of pressure head water tumbler is communicated with water tank 4 by water pump 7, and two water delivering orifices are communicated with water tank 4 respectively with sand-packed model 2, water tank 4 also with the outlet of sand-packed model 2; Because pressure head water tumbler is arranged on the position higher than sand-packed model 2, and pressure head water tumbler is to provide the spacing water tumbler of fixation pressure, make the liquid flowed through in pressure head water tumbler can supply fixation pressure for the liquid carrying in sand-packed model 2, and then water is drawn out of from water tank 4 by water pump 7 enter in pressure head water tumbler, then be pressed in sand-packed model 2 via in two water delivering orifices, water in sand-packed model 2 is pumped by peristaltic pump 8 and is again transported in water tank 4, forms water circulation system; The surplus liquid overflowed in pressure head water tumbler flows in water tank 4 by the water delivering orifice be connected with water tank 4 again, ensures the stable circulation of water circulation system; Preferably pressure head water tumbler is arranged on the position on the top higher than piezometric tube 1, to ensure the stable of Water circulation hydrodynamics.
The pressure head water tumbler of the present embodiment comprises interior cup 6 and outer cup 5, and interior cup 6 is sheathed on the inside of outer cup 5, and interior cup 6 is for providing fixation pressure, and outer cup 5 is for reclaiming the water of overflow; Interior cup 6 is communicated with the water inlet of pressure head water tumbler, and is also communicated with a water delivering orifice of pressure head water tumbler, and another water delivering orifice of pressure head water tumbler is communicated with outer cup 5; During experiment, water is pumped from water tank 4 by water pump 7, to pump in pressure head water tumbler in cup 6 through the water inlet of pressure head water tumbler, then flow in sand-packed model 2 through water delivering orifice from interior cup 6, water flows in sand-packed model 2, and via in the peristaltic pump 8 pumped back water tank 4 in exit, and keep certain liquid level in the piezometric tube 1 that arranges on sand-packed model 2 of Water In The Experiment; Interior cup 6 makes the water of spilling flow in outer cup 5 due to pressure considerations, and the water of spilling flows into water tank 4 from outer cup 5 again through the water delivering orifice of pressure head water tumbler, ensure that the balance of whole water circulation system.It should be noted that, the liquid used in the water circulation system of the present embodiment is water, experimentally needs also can be replaced by other liquid.
Peristaltic pump 8 is installed on the junction of piezometric tube 1 and sand-packed model 2 by connecting pipe, and the quantity of plugging in the piezometric tube 1 stood on sand-packed model 2 is one or more, and inserting vertical position can pressure tap adjustment experimentally on the required sand-packed model 2 measured.As shown in Figure 3, in order to make can measuring distance scope increase between the piezometric tube 1 of the sand-packed model 2 in experimentation, preferably arranging multiple piezometric tube 1 is evenly distributed on sand-packed model 2, particularly preferably multiple piezometric tube 1 one-tenth rice font is evenly distributed on sand-packed model 2, mineralization pressure meter group, impartial to ensure the spacing of each pressure tap, to meet requirement of experiment; The experiment moment finds out the pressure change of liquid in sand-packed model 2 by liquid level in every root piezometric tube 1.
Specific in the present embodiment, one in multiple piezometric tube 1 dismountable center being plugged in sand-packed model 2, and with the outlet of sand-packed model 2, the outlet of sand-packed model 2 is communicated with peristaltic pump 8 with the junction of piezometric tube 1, now peristaltic pump 8 can measure the flow rate of liquid, flow and the force value that are positioned at sand-packed model 2 center pressure tap, and numerical value directly can read by the display screen of peristaltic pump 8.
It should be noted that, by changing the link position of peristaltic pump 8, any flow, flow velocity and force value with the pressure tap position of piezometric tube on sand-packed model 2 can be measured; The position distribution of piezometric tube 1 on sand-packed model 2 can be equally distributed rice font, also can be all kinds of shapes of uneven distribution, experimentally need to adjust accordingly.Therefore, in the diameter range of sand-packed model 2, the radial flow simulation of the sand-packed model 2 with different distance piezometric tube 1 can be designed, also can identical or different piezometric tube 1 distributed architecture of pressure head measurement range in design simulation various Unequal distance well pattern situation.
Sand-packed model 2 is provided with plug with the bottom of the junction of piezometric tube 1 is dismountable, plug is for regulating and controlling the opening and closing of the junction of sand-packed model 2 and piezometric tube 1, when the position at part piezometric tube 1 place is without the need to carrying out pressure survey, this place's piezometric tube 1 can be extracted, then block the junction of sand-packed model 2 and this place's piezometric tube 1 with plug.
In order to ensure that piezometric tube 1 can easily from plug sand-packed model 2, preferred piezometric tube 1 is provided with force pipe and pit shaft, and pit shaft is inserted and is embedded in sand-packed model 2, and force pipe is communicated with pit shaft, and force pipe is provided with scale, liquid level during experiment in every root force pipe can measure by Steel Ruler.
In order to make the change of the pressure of display in piezometric tube 1 accurately measure, the material of preferred pressure pipe is organic glass.
In order to ensure stable connection between piezometric tube 1 and sand-packed model 2, the material of preferred pit shaft is stainless steel,
In order to ensure that the liquid flow in sand-packed model 2 can directly be observed, the material of preferred sand-packed model is organic glass.
The sand-packed model 2 of the present embodiment is made by organic glass material, and appearance is transparent, and to be easy to the flowing of observing and nursing internal flow dynamic; The diameter of sand-packed model 2 is 480mm, and comparing size compared with the sand-packed model 2 of prior art has had obvious increase; Pressure head in piezometric tube 1 can measuring height be 1000mm, centre distance between piezometric tube 1 is 60mm, the pressure display section of piezometric tube 1 upper end is the force pipe of the organic glass material of 8mm, lower end is the pit shaft that the stainless steel pipeline of 4mm is made, become that M shape is uniform is connected on sand-packed model 2, facilitate plug, increase effectively experiment measuring scope, and add the packing density of piezometric tube 1.
The radial fluid flow analogue experiment installation of the present embodiment has two kinds of power sources, and a kind of is conventional pressure head water tumbler, can do conventional Seepage Experiment; One is peristaltic pump 8, the joint of water tank 4 is replaced by peristaltic pump 8 to be connected on sand-packed model 2, connected mode adopts push-in connection very easily, choose decanting point, the joint edges of the piezometric tube 1 of this point is pressed from lower to upper, piezometric tube 1 is extracted, then the connecting pipe of peristaltic pump 8 is inserted, various flow rate and various ways and dissimilar experiment can be done.
The experiment method of the present embodiment is: piezometric tube 1 is chosen for 25 plexi-glass tubulars, and composition rice font is directly connected in mineralization pressure meter group above sand-packed model 2; After experiment starts, water pumps in pressure head water tumbler in cup 6 via water pump 7 from water tank 4, then enters in sand-packed model 2, from the outlet of sand-packed model 2 by peristaltic pump 8 pumped back water tank 4; Find out the pressure change of liquid in sand-packed model 2 by the liquid level in every root piezometric tube 1 in experiment, the liquid level in every root piezometric tube 1 can measure by Steel Ruler, and accurately reads flow rate of liquid value, flow value and force value by peristaltic pump 8.
In sum, the sand-packed model 2 of the radial fluid flow analogue experiment installation of the present embodiment is communicated with water circulation system by peristaltic pump 8, and water circulation system realizes the liquid-circulating flowing of sand-packed model 2 inside by peristaltic pump 8; Also dismountablely on sand-packed model 2 insert the vertical piezometric tube 1 had for monitoring pressure value.This radial fluid flow analogue experiment installation both can provide power for water circulation system by peristaltic pump 8, effectively can expand again the change scope of flow, easy accurate metered flow, eliminate the trouble measured with graduated cylinder 3, and empirical flow can be changed more efficiently, accelerate conventional efficient; Add the purposes of percolation model simultaneously, under different well pattern can be considered, the percolation law in same flow and injection rate situation; The increase of the distribution density of piezometric tube 1 on sand-packed model 2, make changing along stroke pressure of sand-packed model 2 inner fluid see clearly, and measurement range have also been obtained effective increase.
Embodiment of the present utility model provides for the purpose of example and description, and is not exhaustively or by the utility model be limited to disclosed form.Many modifications and variations are apparent for the ordinary skill in the art.Selecting and describing embodiment is in order to principle of the present utility model and practical application are better described, and enables those of ordinary skill in the art understand the utility model thus design the various embodiments with various amendment being suitable for special-purpose.
Claims (10)
1. a radial fluid flow analogue experiment installation, it is characterized in that, comprise sand-packed model (2), water circulation system and peristaltic pump (8), described sand-packed model (2) is communicated with water circulation system by peristaltic pump (8), and described water circulation system realizes the liquid-circulating inner with described sand-packed model (2) by peristaltic pump (8) and flows; The upper also dismountable slotting vertical piezometric tube (1) had for monitoring pressure value of described sand-packed model (2).
2. radial fluid flow analogue experiment installation according to claim 1, it is characterized in that, described water circulation system comprises water tank (4) and water pump (7), described water tank (4) is communicated with by the entrance of water pump (7) with sand-packed model (2), and the outlet of described sand-packed model (2) is communicated with water tank (4) by peristaltic pump (8).
3. radial fluid flow analogue experiment installation according to claim 2, it is characterized in that, also comprise for described water circulation system provides the pressure head water tumbler of power, described pressure head water tumbler is communicated with by the entrance of water circulation system with sand-packed model (2), and described pressure head water tumbler is arranged on the position higher than described sand-packed model (2).
4. radial fluid flow analogue experiment installation according to claim 3, it is characterized in that, described pressure head water tumbler is provided with a water inlet and two water delivering orifices, the water inlet of described pressure head water tumbler is communicated with water tank (4) by described water pump (7), two described water delivering orifices are communicated with water tank (4) respectively with described sand-packed model (2), described water tank (4) also with the outlet of described sand-packed model (2).
5. radial fluid flow analogue experiment installation according to claim 4, it is characterized in that, described pressure head water tumbler comprises interior cup (6) and outer cup (5), described interior cup (6) is sheathed on the inside of described outer cup (5), described interior cup (6) is for providing fixation pressure, and described outer cup (5) is for reclaiming the water of overflow; Described interior cup (6) is communicated with the water inlet of described pressure head water tumbler, and is also communicated with a water delivering orifice of described pressure head water tumbler, and another water delivering orifice of described pressure head water tumbler is communicated with described outer cup (5).
6. radial fluid flow analogue experiment installation according to claim 1, it is characterized in that, the quantity of described piezometric tube (1) is multiple, and multiple described piezometric tube (1) becomes M shape to be evenly distributed on described sand-packed model (2).
7. radial fluid flow analogue experiment installation according to claim 1, it is characterized in that, described piezometric tube (1) comprises force pipe and pit shaft, described pit shaft is inserted and is embedded in described sand-packed model (2), described force pipe is communicated with pit shaft, and described force pipe is provided with scale.
8. radial fluid flow analogue experiment installation according to claim 7, is characterized in that, the material of described force pipe and sand-packed model (2) is organic glass, and the material of described pit shaft is stainless steel.
9. radial fluid flow analogue experiment installation according to claim 1, it is characterized in that, described sand-packed model (2) is provided with plug with the bottom of the junction of piezometric tube (1) is dismountable, and described plug is for regulating and controlling the opening and closing of the junction of described sand-packed model (2) and piezometric tube (1).
10. radial fluid flow analogue experiment installation according to claim 1, is characterized in that, the flow range of described peristaltic pump (8) is 25ml/min ~ 100ml/min.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520464385.7U CN204882315U (en) | 2015-06-30 | 2015-06-30 | Radial fluid flow simulation experiment device |
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| CN201520464385.7U CN204882315U (en) | 2015-06-30 | 2015-06-30 | Radial fluid flow simulation experiment device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109507075A (en) * | 2017-09-14 | 2019-03-22 | 湖南康程护理用品有限公司 | A kind of absorbent article is sliding to seep detection seat and its sliding infiltration detection system |
| CN110924928A (en) * | 2019-11-27 | 2020-03-27 | 长江大学 | Testing device and method for testing annular flow pressure drop of irregular borehole section |
| CN112855089A (en) * | 2021-02-01 | 2021-05-28 | 重庆科技学院 | Application method for calculating effective permeability of two-dimensional sand-packed model |
-
2015
- 2015-06-30 CN CN201520464385.7U patent/CN204882315U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109507075A (en) * | 2017-09-14 | 2019-03-22 | 湖南康程护理用品有限公司 | A kind of absorbent article is sliding to seep detection seat and its sliding infiltration detection system |
| CN110924928A (en) * | 2019-11-27 | 2020-03-27 | 长江大学 | Testing device and method for testing annular flow pressure drop of irregular borehole section |
| CN110924928B (en) * | 2019-11-27 | 2022-12-09 | 长江大学 | Test device and method for testing annular flow pressure drop of irregular well bore section |
| CN112855089A (en) * | 2021-02-01 | 2021-05-28 | 重庆科技学院 | Application method for calculating effective permeability of two-dimensional sand-packed model |
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Granted publication date: 20151216 Termination date: 20160630 |