CN203324846U - Constant-head high-flow seepage deformation water pressure automatic controlling apparatus - Google Patents
Constant-head high-flow seepage deformation water pressure automatic controlling apparatus Download PDFInfo
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- CN203324846U CN203324846U CN2013203679104U CN201320367910U CN203324846U CN 203324846 U CN203324846 U CN 203324846U CN 2013203679104 U CN2013203679104 U CN 2013203679104U CN 201320367910 U CN201320367910 U CN 201320367910U CN 203324846 U CN203324846 U CN 203324846U
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Abstract
The utility model relates to a constant-head high-flow seepage deformation water pressure automatic controlling apparatus comprising a water supply box. A water inlet tube is arranged at the bottom of the water supply box; the bottom of the water supply box is communicated with the bottom of a seepage deformation instrument by a water supply pipe; and a boosting pump, an automatic water flow adjusting valve, and a pressure gauge are arranged at the water supply pipe. The boosting pump and the automatic water flow adjusting valve are used for ensuring that constant-head high-flow seepage deformation water with the stable pressure is provided for the seepage deformation instrument, thereby ensuring precision and stability of the experimental data. Because a water returning pool and a water returning pipe with a self-priming pump are arranged, the seepage deformation water can be utilized by a recycling way, thereby saving the water resources. Because the water is recycled in the indoor environment, there is no need to introduce extraneous water, thereby effectively controlling the water temperature changing during the testing process, eliminating the influence on the testing result by the water temperature and improving the testing precision. On the basis of combination of the boosting pump, the automatic water flow adjusting valve, and the high-precision pressure gauge, automatic controlling is realized and thus the work intensity during the testing process is substantially reduced.
Description
Technical field
The utility model relates to a kind of infiltration water and tests field, the particularly large flow seepage deformation of a kind of constant head water pressure automaton.
Background technology
Along with improving constantly of scientific and technological level and mechanization of building operation degree, various earth rock materials and native stone composite material apply to earth and rockfill dam dam body reclamation work, because earth and rockfill dam is water retaining structure, it and infiltration, seepage flow are also deposited, there is earth and rockfill dam that infiltration, seepage flow are just arranged, the development history of earth and rockfill dam is exactly the development history that seepage theory and seepage flow are controlled, and therefore, guarantees that the buildings seepage stability is matter of utmost importance to ensure safety.
In view of earth rock material and native stone composite material to earth and rockfill dam seepage stability security implication, it is that infiltration coefficient under different pressures, infiltration are than falling that its seepage stability parameter is reflected to specific targets, and in the infiltration and seepage deformation test of earthwork test rule to coarse-grained soil at present, permeability test to coarse-grained soil adopts hydrostatic head method to be tested, measure its seepage discharge according to different head pressures, thereby the infiltration ratio calculated under different pressures falls and infiltration coefficient.
China's existing penetration equipment of measuring coarse-grained soil at present is mainly vertical seepage deformation instrument, and specimen finish is respectively two kinds of 20cm and 30cm, and its water supply installation forms by supply tank, hoisting frame, proofed sleeve.And there are a lot of weak points in this water supply installation through practical operation for many years: 1, because this water supply installation needs a large amount of water sources, provide endlessly, water resource waste is larger; While 2, promoting head, need testing crew constantly to be regulated according to pressure of supply water, expense is time-consuming and head pressure is unstable, and process of the test is had a certain impact at every turn; 3, the support of lifting gear, wire rope, pulley, because of what expose to the weather in outdoor process for a long time, need often maintenance and change, and the proofed sleeve that overflow weir outlet simultaneously connects also can be aging and changes; 4, due to the variation of temperature, in process of the test, water temperature differs greatly, and test result is had to larger impact.Existing test need to be guaranteed the water yield of per minute 2000ml, experimental period cycle 3-5 days, and proof strength is high, in long-time process of the test, is difficult to guarantee head pressure.
Summary of the invention
Technical problem to be solved in the utility model is to provide the large flow seepage deformation of a kind of constant head water pressure automaton, can guarantee to provide the seepage deformation water of the large flow of constant head, pressure stability to seepage deformation instrument, further seepage deformation water can recycle.
For solving the problems of the technologies described above, the technical scheme that the utility model adopts is: the large flow seepage deformation of a kind of constant head water pressure automaton, comprise supply tank, the supply tank bottom is provided with water inlet pipe, the bottom of supply tank is communicated with the bottom of seepage deformation instrument by flow pipe, and described flow pipe is provided with supercharge pump, automatic water flow variable valve and tensimeter.
Also be provided with back pool below seepage deformation instrument, the bottom of supply tank is communicated with back pool by return pipe, and return pipe is provided with for drawing water to the self-priming pump of supply tank.
The bottom of back pool also is provided with settling pit, and the bottom surface of settling pit is lower than the bottom surface of back pool.
Be provided with overflow weir in supply tank, the mouth of pipe of water inlet pipe and return pipe is positioned at the influent side of overflow weir, and the mouth of pipe of flow pipe is positioned at the water outlet side of overflow weir.
In described seepage deformation instrument, be provided with successively from top to bottom filtering layer, porous disc and test specimen, above the test specimen upper surface, be provided with drainpipe, the effluent pipe mouth of drainpipe is positioned at the top of back pool.
The mouth of pipe place that return pipe is positioned at back pool is provided with filter screen.
The large flow seepage deformation of a kind of constant head water pressure automaton that the utility model provides, the seepage deformation water of guaranteeing to provide the large flow of constant head and pressure stability to seepage deformation instrument by supercharge pump and the automatic water flow variable valve of setting, guarantee the accurate and stable of experimental data.The back pool arranged and with the return pipe of self-priming pump, can recycle seepage deformation water, saved water resource.Because water recycles in indoor environment, without introducing extraneous water, thereby effectively controlled the water temperature in the process of the test, change, eliminate the impact of water temperature on test findings, improve test accuracy.Combination by supercharge pump and automatic water flow variable valve and high-precision pressure gauge, realized automatic control, significantly reduces the working strength in process of the test.
The accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is described in further detail.
Fig. 1 is the one-piece construction schematic diagram of the utility model device.
In figure: supply tank 1, overflow weir 2, water inlet pipe 3, return pipe 4, self-priming pump 5, supercharge pump 6, automatic water flow variable valve 7, tensimeter 8, back pool 9, settling pit 10, seepage deformation instrument 11, drainpipe 12, test specimen 13, porous disc 14, filtering layer 15, flow pipe 16.
Embodiment
In Fig. 1, the large flow seepage deformation of a kind of constant head water pressure automaton, comprise supply tank 1, supply tank 1 bottom is provided with water inlet pipe 3, the bottom of supply tank 1 is communicated with the bottom of seepage deformation instrument 11 by flow pipe 16, and described flow pipe 16 is provided with supercharge pump 6, automatic water flow variable valve 7 and tensimeter 8.In use, by the adjusting of automatic water flow variable valve, make head pressure reach test determination value or setting value; But fluctuation and the stable case of high-precision tensimeter 8 Real-Time Monitoring test pressures.It is that 3 ~ 4.5mm aluminum alloy plate materials processes that supply tank 1 in this example adopts thickness, supply tank physical dimension is length 1200mm, width is 600mm, be highly 500mm, the aperture of 3 diameter 40mm is left in the supply tank bottom, be respectively water inlet pipe 3, the water inlet of return pipe 4 and flow pipe 16 and water delivering orifice, be provided with overflow weir 2 in supply tank, the physical dimension of overflow weir is length 500mm, width 400mm, be highly 400mm, overflow weir and supply tank sealed bottom weld together, overflow weir in this example adopts the mode of four sides overflow, preferably overflow weir is welded on to the centre position of supply tank.The mouth of pipe of water inlet pipe 3 and return pipe 4 is positioned at the influent side of overflow weir 2, and the mouth of pipe of flow pipe 16 is positioned at the water outlet side of overflow weir 2.The overflow weir 2 arranged can be guaranteed the head of supply tank 1 inside on the one hand, also can make degassed process of water generates by overflow weir on the other hand.Can reduce the cavitation erosion infringement to supercharge pump 6, also can guarantee that test figure is accurate.
Also be provided with back pool 9 below seepage deformation instrument 11, the bottom of supply tank 1 is communicated with back pool 9 by return pipe 4, and return pipe 4 is provided with for drawing water to the self-priming pump 5 of supply tank 1.Structure thus, in this example, the water overflowed from seepage deformation instrument 11 flow in back pool 9, by self-priming pump 5, is drawn in back pool 9 again, and preferred, the bottom of back pool 9 also is provided with settling pit 10, and the bottom surface of settling pit 10 is lower than the bottom surface of back pool 9.Structure thus, for precipitating the silt particle of seepage deformation water.The physical dimension of the overflow water recovery pond in this example is length 500mm, height 500mm, width 500mm, because the water overflowed may contain the part fine grained soil, therefore a settling pit is set in the bottom of recovery pond, the settling pit position is in a corner of back pool 9, settling pit is below back pool 9 bottoms, and the degree of depth is that 250mm, length and width are 250mm.
In described seepage deformation instrument 11, be provided with successively from top to bottom filtering layer 15, porous disc 14 and test specimen 13, above test specimen 13 upper surfaces, be provided with drainpipe 12, the effluent pipe mouth of drainpipe 12 is positioned at the top of back pool 9.The mouth of pipe place that return pipe 4 is positioned at back pool 9 is provided with filter screen.Structure, avoid fine grained soil to enter in return pipe 4 thus, thus wearing and tearing self-priming pump 5.
During test, step is as follows:
1, open the valve of water inlet pipe 3, allow external water source enter overflow weir 2 by water inlet pipe 3 stably, and the water that makes overflow weir 2 slowly, overflow stably, the water surface to be overflowed reaches the 200mm left and right, opens the valve of flow pipe 16.
2, open self-priming electric booster pump 6, head pressure according to testing requirements, regulate setting by automatic water flow variable valve 7, head pressure is set and is mainly monitored by high-precision pressure gauge 8 and the information feedback, in this example, mainly adopts open loop automatically to control, usually after setting the output pressure of automatic water flow variable valve 7, adjust the parameter of supercharge pump 6, the output pressure that makes the output pressure of supercharge pump 6 be slightly larger than automatic water flow variable valve 7 gets final product again, 7 outputs of automatic water flow variable valve
The current of constant current constant voltage, thus the head that provides test required can be provided.
3, when the head pressure by regulating reaches or meets testing requirements, open seepage deformation instrument bottom flow pipe 16 valves, make during water slowly permeates test specimen 13 under the head pressure of regulation, thereby realize the process of the test of sample exhaust, saturated and infiltration;
4, the infiltration water after the test is discharged to back pool 9 from drainpipe 12, after the water of overflow water back pool 9 interior storages can provide the test cycle water to require, close the valve of water inlet pipe 3, open the valve of Scroll-tupe self-priming pump 5 and return pipe 4, thereby realize the recycling that repeats of overflow water, until experiment work finishes.
Claims (6)
1. the large flow seepage deformation of a constant head water pressure automaton, comprise supply tank (1), supply tank (1) bottom is provided with water inlet pipe (3), the bottom of supply tank (1) is communicated with the bottom of seepage deformation instrument (11) by flow pipe (16), and it is characterized in that: described flow pipe (16) is provided with supercharge pump (6), automatic water flow variable valve (7) and tensimeter (8).
2. the large flow seepage deformation of a kind of constant head according to claim 1 water pressure automaton, it is characterized in that: in seepage deformation instrument (11) below, also be provided with back pool (9), the bottom of supply tank (1) is communicated with back pool (9) by return pipe (4), and return pipe (4) is provided with for drawing water to the self-priming pump (5) of supply tank (1).
3. the large flow seepage deformation of a kind of constant head according to claim 2 water pressure automaton, it is characterized in that: the bottom of back pool (9) also is provided with settling pit (10), and the bottom surface of settling pit (10) is lower than the bottom surface of back pool (9).
4. the large flow seepage deformation of a kind of constant head according to claim 1 water pressure automaton, it is characterized in that: be provided with overflow weir (2) in supply tank (1), the mouth of pipe of water inlet pipe (3) and return pipe (4) is positioned at the influent side of overflow weir (2), and the mouth of pipe of flow pipe (16) is positioned at the water outlet side of overflow weir (2).
5. the large flow seepage deformation of a kind of constant head according to claim 1 water pressure automaton, it is characterized in that: in described seepage deformation instrument (11), be provided with successively from top to bottom filtering layer (15), porous disc (14) and test specimen (13), top at test specimen (13) upper surface is provided with drainpipe (12), and the effluent pipe mouth of drainpipe (12) is positioned at the top of back pool (9).
6. the large flow seepage deformation of a kind of constant head according to claim 4 water pressure automaton, it is characterized in that: the mouth of pipe place that return pipe (4) is positioned at back pool (9) is provided with filter screen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203679104U CN203324846U (en) | 2013-06-25 | 2013-06-25 | Constant-head high-flow seepage deformation water pressure automatic controlling apparatus |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203679104U CN203324846U (en) | 2013-06-25 | 2013-06-25 | Constant-head high-flow seepage deformation water pressure automatic controlling apparatus |
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| CN203324846U true CN203324846U (en) | 2013-12-04 |
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| CN2013203679104U Withdrawn - After Issue CN203324846U (en) | 2013-06-25 | 2013-06-25 | Constant-head high-flow seepage deformation water pressure automatic controlling apparatus |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103345278A (en) * | 2013-06-25 | 2013-10-09 | 葛洲坝集团试验检测有限公司 | Constant head mass-flow seepage deformation water pressure automatic control device |
| CN113777005A (en) * | 2021-08-26 | 2021-12-10 | 华北水利水电大学 | Intermittent automatic suction seepage test device and method for drainage hole or well |
-
2013
- 2013-06-25 CN CN2013203679104U patent/CN203324846U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103345278A (en) * | 2013-06-25 | 2013-10-09 | 葛洲坝集团试验检测有限公司 | Constant head mass-flow seepage deformation water pressure automatic control device |
| CN113777005A (en) * | 2021-08-26 | 2021-12-10 | 华北水利水电大学 | Intermittent automatic suction seepage test device and method for drainage hole or well |
| CN113777005B (en) * | 2021-08-26 | 2023-11-14 | 华北水利水电大学 | Intermittent automatic suction seepage test device and method for drainage hole or well |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information |
Inventor after: Chen Weilie Inventor after: Wang Lei Inventor after: Cai Lulu Inventor before: Chen Weilie Inventor before: Wang Lei |
|
| CB03 | Change of inventor or designer information | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20131204 Effective date of abandoning: 20220424 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20131204 Effective date of abandoning: 20220424 |
|
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |