CN219348565U - Novel water injection test device - Google Patents
Novel water injection test device Download PDFInfo
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- CN219348565U CN219348565U CN202320074351.1U CN202320074351U CN219348565U CN 219348565 U CN219348565 U CN 219348565U CN 202320074351 U CN202320074351 U CN 202320074351U CN 219348565 U CN219348565 U CN 219348565U
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Abstract
The utility model relates to the technical field of permeability tests, and discloses a novel water injection test device which comprises a first flow bottle, a second flow bottle and a double-ring piece; the double-ring piece comprises an inner ring and an outer ring with different diameters, the inner ring is sleeved in the outer ring, the inner space of the inner ring is a first water injection cavity, and the interval space between the outer ring and the inner ring is a second water injection cavity; the water outlet of the first flow bottle is communicated with the first water injection cavity, and the water outlet of the second flow bottle is communicated with the second water injection cavity; the bottle body of first flow bottle and second flow bottle is the syringe shape, including last body and lower body, go up body diameter and be greater than lower body diameter, and be equipped with annular pressure sensor at lower body overcoat, annular pressure sensor upper surface and the contact of last body bottom surface. The utility model can automatically record test data, has higher test precision and is convenient to use.
Description
Technical Field
The utility model relates to the technical field of permeability tests, in particular to a novel water injection test device.
Background
The double-ring water injection test is often applied to the work such as the permeability test of the original foundation soil during geotechnical engineering investigation, the permeability detection of the filling soil in the hydraulic engineering, and the like, and plays an important auxiliary role in researching the soil body state.
The double-ring water injection test device mainly comprises two inner and outer metal test rings with different diameters, wherein the inner ring provides a relation between water injection quantity and time for the measuring ring, and the outer ring is a constraint ring, so that vertical permeability coefficient test errors caused by lateral permeability of inner ring water are reduced. The water head height of the inner ring and the outer ring is controlled by arranging a flow bottle utilizing the Mariotte bottle principle in the inner ring and the outer ring respectively. Currently common double-ring water seepage test: the double rings are embedded into a foundation soil layer to be measured, water is injected into the inner ring and the outer ring respectively, the water surfaces of the inner ring and the outer ring are kept consistent, the foundation soil is automatically infiltrated downwards, meanwhile, along with the infiltration of water, water supply is required to be continuously carried out, after the water infiltration of the rings is relatively stable in a certain time, the permeability coefficient of the foundation soil is calculated through Darcy's law, and the permeability test of the foundation soil is further completed.
In the process, the conventional double-ring water injection test device needs to repeatedly read seepage flow through the scale on the water supply barrel, and has large reading error, relatively low accuracy and inconvenience in the frequent reading and waiting process due to long overall test time (generally lasting 3-4 hours). Moreover, the traditional test water supply barrel is a simple glass product, is not easy to carry, is easy to damage in the field transportation and use process, and has great inconvenience in the water injection use process.
Disclosure of Invention
The utility model aims to provide a novel water injection test device which can automatically record test data, has higher test precision and is convenient to use.
The basic scheme provided by the utility model is as follows: a novel water injection test device comprises a first flow bottle, a second flow bottle and a double-ring piece; the double-ring piece comprises an inner ring and an outer ring with different diameters, the inner ring is sleeved in the outer ring, the inner space of the inner ring is a first water injection cavity, and the interval space between the outer ring and the inner ring is a second water injection cavity; the water outlet of the first flow bottle is communicated with the first water injection cavity, and the water outlet of the second flow bottle is communicated with the second water injection cavity; the bottle body of first flow bottle and second flow bottle is the syringe shape, including last body and lower body, go up body diameter and be greater than lower body diameter, and be equipped with annular pressure sensor at lower body overcoat, annular pressure sensor upper surface and the contact of last body bottom surface.
The working principle and the advantages of the utility model are as follows: when the double-ring water injection device is used, the double-ring member is inserted into a region to be tested (soil layer and the like), the position of the water outlet is adjusted, so that the water outlet is relatively close to the water surface position required by the test, water is injected into the first water injection cavity and the second water injection cavity by the first flow bottle and the second flow bottle respectively, and the double-ring water injection test is started; after the water in the flow bottle is exhausted, water is supplied to the flow bottle again, and the circulation is performed until the whole double-ring water injection test is completed.
In the water injection process, the annular pressure sensor arranged under the upper bottle body can synchronously sense the pressure change condition of the flow bottle, and the accurate injection water quantity value can be obtained through conversion by the pressure change data, so that more accurate permeation data can be obtained, and higher test precision can be achieved. And moreover, the annular pressure sensor reads in real time, the reading is accurate and convenient, and the using convenience of the whole test device is high. In addition, in this scheme flow bottle body shape is the syringe shape, and the diameter difference of upper and lower body has reserved the space for annular pressure sensor's installation nature, and device structure integrated level is higher.
Drawings
FIG. 1 is a schematic view of a water injection test apparatus according to an embodiment of the present utility model;
FIG. 2 is a top view of the structure of a first embodiment of a novel water injection test device according to the present utility model;
fig. 3 is a schematic structural view of a second flow flask according to an embodiment of the novel water injection test device of the present utility model.
Detailed Description
The following is a further detailed description of the embodiments:
the labels in the drawings of this specification include: the device comprises an annular pressure sensor 1, screws 2, a rubber plug 3, a push rod 4, a water inlet and outlet 5, a wire 6, a supporting plate 7, a bracket 8, a bottle wall 9, an inner ring 10, an outer ring 11, a first flow bottle 12, a second flow bottle 13, an upper bottle body 131, a lower bottle body 132, a gas stop clamp 14, an air inlet pipe 15 and a water outlet pipe 16.
Example 1
The embodiment is basically as shown in fig. 1 and 2: a novel water injection test device comprises a first flow bottle 12, a second flow bottle 13, a double-ring piece and a supporting plate 7.
The double-ring member comprises an inner ring 10 and an outer ring 11 with different diameters, the inner ring 10 is sleeved in the outer ring 11, the inner space of the inner ring 10 is a first water injection cavity, and the interval space between the outer ring 11 and the inner ring 10 is a second water injection cavity. In this embodiment, the outer ring 11 and the inner ring 10 are coaxial, and a sealing plate for sealing the openings at the top of the inner ring 10 and the outer ring 11 is fixedly arranged at the top of the outer ring 11, and holes for passing the water outlet and the air inlet pipe 15 are formed in the sealing plate.
As shown in fig. 3, the bodies of the first flow bottle 12 and the second flow bottle 13 are in the shape of an injector, and comprise an upper body 131 and a lower body 132 which are integrally formed, the diameter of the upper body 131 is larger than that of the lower body 132, an annular pressure sensor 1 is sleeved outside the lower body 132, and the upper surface of the annular pressure sensor 1 is in contact with the bottom surface of the upper body 131. In the embodiment, the inner diameter of the annular pressure sensor 1 is slightly larger than the outer diameter of the lower bottle body 132, and a certain gap exists between the outer wall of the lower bottle body 132 and the annular pressure sensor 1 and the supporting plate 7, so that the structural friction between components can be prevented from affecting the test accuracy; the outer diameter of the annular pressure sensor 1 is consistent with the outer diameter of the upper bottle body 131; that is, the area of the annular part of the annular pressure sensor 1 is approximately the area of the annular part formed by the outer circle of the upper bottle body 131 and the outer circle of the lower bottle body 132, the annular pressure sensor 1 can be just arranged at the bottom surface of the upper bottle body 131, and the device structure integration level is high.
In this embodiment, the walls 9 of the first flow flask 12 and the second flow flask 13 are polypropylene walls (the wall thicknesses are not shown in the drawings here). Compared with the conventionally adopted glass wall body and the like, the bottle body is smaller in weight, the bottle wall 9 is not easy to damage, and the bottle is more convenient to carry and transport. Moreover, graduation marks are arranged on the bottle wall 9.
The water outlet of the first flow bottle 12 is communicated with the first water injection cavity, and the water outlet of the second flow bottle 13 is communicated with the second water injection cavity. Specifically, a water outlet pipe 16 integrally connected with the lower bottle body 132 is arranged at the center of the bottom surface of the lower bottle body 132, and the mouth of the water outlet pipe 16 is a water outlet.
An air inlet pipe 15 is arranged in the bottle body, and the axis of the air inlet pipe 15 is parallel to the axis of the bottle body; and the air inlet pipe 15 passes through the bottom surface of the lower bottle body 132, and the air stopping clamp 14 is arranged at the part of the air inlet pipe 15 extending out of the bottom surface of the lower bottle body 132. The joint of the air inlet pipe 15 and the bottom surface of the lower bottle body 132 is filled with sealant.
A rubber plug 3 is arranged at the top of the upper bottle body 131 and a push rod 4 connected with the rubber plug 3; the push rod 4 is used for pushing the rubber plug 3 to slide up and down in the upper bottle body 131. The diameter of the rubber plug 3 is consistent with the inner diameter of the upper bottle body 131, namely, the top of the upper bottle body 131 is sealed by the rubber plug 3. The upper part of the side surface of the upper bottle body 131 is provided with a water inlet and outlet 5, and water can be supplemented into the bottle body through the water inlet and outlet 5, so that a double-ring water injection test can be continuously carried out.
The supporting plate 7 is provided with a mounting hole with the same diameter as the lower bottle body 132; the support plate 7 is used for supporting the first flow flask 12, the second flow flask 13 and the annular pressure sensor 1. Specifically, as shown in fig. 1, the support plate 7 is transversely disposed on the support frame 8, and the support frame 8 in this embodiment adopts a conventional support frame 8.
In a specific application, the annular pressure sensor 1 is fixedly mounted on the support plate 7 through the mounting holes by using the screws 2. The empty first and second flow flasks 12 and 13 are then placed on the support plate 7, and the lower body 132 is passed through the corresponding mounting holes, and the bottom surface of the upper body 131 is brought into contact with the annular pressure sensor 1. After the bottle is placed, the reading of the annular pressure sensor 1 is zeroed, and the influence of the dead weight of the bottle is eliminated.
The first flow flask 12 and the second flow flask 13 are filled with water, and after the water is filled, the rubber plug 3 is pushed in to discharge the redundant air in the flask body (the redundant air is discharged through the water inlet and outlet 5), and the water inlet and outlet 5 is closed after the redundant air is fully discharged. The bottom nozzle of the portion of the air inlet pipe 15 extending out of the bottom surface of the lower bottle body 132 is roughly adjusted to the water surface position required by the test, then the air stop clamp 14 is opened (before that, the air stop clamp 14 is kept closed), water in the bottle body flows out from the water outlet, and the double-ring water injection test is started. After the water in the bottle body is exhausted, the water inlet and outlet 5 can be opened, water is supplied again into the bottle body (for example, a water pipe is adopted to connect a water supply barrel with the bottle body through the water inlet and outlet 5 and water is supplied into the bottle body), and the whole double-ring water injection test process is circulated until the whole double-ring water injection test process is completed.
The novel water injection test device provided by the embodiment has the advantages of simple overall structure and high integration level; the bottle body adopts the polypropylene wall body, is difficult for damaging, portable and transportation. In addition, the bottle body is particularly set to be in the shape of an injector, and the annular pressure sensor 1 is integrally arranged to sense the weight change of the bottle body in real time, so that the pressure change value can be collected in time, the reading error is reduced, more accurate permeability data can be obtained, and higher test precision can be achieved. And moreover, the annular pressure sensor 1 reads in real time, the reading is accurate and convenient, and the using convenience of the whole test device is higher.
Example two
A novel water injection test device is characterized in that a water level sensor is additionally arranged in a barrel body on the basis of the first embodiment.
The water inlet and outlet 5 is connected with a water supply barrel through a water pipe. And an electric water pump is also connected between the water supply barrel and the water inlet and outlet 5, and a controller is arranged on the electric water pump and is used for controlling the electric water pump to start or stop water delivery. In this embodiment, the controller may employ a conventional microcontroller, and the controller establishes a communication connection with the water level sensor.
Specifically, the water level sensor is disposed at a lower portion of the inner wall of the upper body 131, and is configured to sense a change of the water level in the body, and to transmit a water delivery signal to the controller when the water level is lower than a preset position, and to transmit a stop water delivery signal to the controller when the water level is higher than the preset position. In this embodiment, the water level sensor is a conventional liquid level sensor.
In the specific application, after the double-ring water injection test starts and a part of water in the bottle body is lost, the water level sensor is triggered to transmit a water transmission signal to the controller, and the controller controls the electric water pump to start water transmission; after water is delivered to a certain liquid level, the water level sensor transmits a signal for stopping water delivery to the controller, and the controller controls the electric water pump to stop water delivery.
The novel water injection test device that this embodiment provided can carry out the water yield supply automatically, uses more convenient.
The foregoing is merely an embodiment of the present utility model, and a specific structure and characteristics of common knowledge in the art, which are well known in the scheme, are not described herein, so that a person of ordinary skill in the art knows all the prior art in the application day or before the priority date of the present utility model, and can know all the prior art in the field, and have the capability of applying the conventional experimental means before the date, so that a person of ordinary skill in the art can complete and implement the present embodiment in combination with his own capability in the light of the present application, and some typical known structures or known methods should not be an obstacle for a person of ordinary skill in the art to implement the present application. It should be noted that modifications and improvements can be made by those skilled in the art without departing from the structure of the present utility model, and these should also be considered as the scope of the present utility model, which does not affect the effect of the implementation of the present utility model and the utility of the patent.
Claims (8)
1. The novel water injection test device is characterized by comprising a first flow bottle, a second flow bottle and a double-ring piece; the double-ring piece comprises an inner ring and an outer ring with different diameters, the inner ring is sleeved in the outer ring, the inner space of the inner ring is a first water injection cavity, and the interval space between the outer ring and the inner ring is a second water injection cavity; the water outlet of the first flow bottle is communicated with the first water injection cavity, and the water outlet of the second flow bottle is communicated with the second water injection cavity; the bottle body of first flow bottle and second flow bottle is the syringe shape, including last body and lower body, go up body diameter and be greater than lower body diameter, and be equipped with annular pressure sensor at lower body overcoat, annular pressure sensor upper surface and the contact of last body bottom surface.
2. The novel water injection test device according to claim 1, wherein the walls of the first flow flask and the second flow flask are polypropylene walls.
3. The novel water injection test device according to claim 1, further comprising a support plate; the supporting plate is provided with a mounting hole with the same diameter as the lower bottle body; the support plate is used for supporting the first flow bottle, the second flow bottle and the annular pressure sensor.
4. The novel water injection test device according to claim 1, wherein a rubber plug and a push rod connected with the rubber plug are arranged at the top of the upper bottle body; the push rod is used for pushing the rubber plug to slide up and down in the upper bottle body.
5. The novel water injection test device according to claim 4, wherein the rubber plug has a diameter consistent with the inner diameter of the upper bottle body.
6. The novel water injection test device according to claim 1, wherein the upper part of the side surface of the upper bottle body is provided with a water inlet and a water outlet.
7. The novel water injection test device according to claim 1, wherein an air inlet pipe is arranged in the bottle body, and the axis of the air inlet pipe is parallel to the axis of the bottle body; and the air inlet pipe penetrates through the bottom surface of the lower bottle body, and an air stopping clamp is arranged at the part of the air inlet pipe extending out of the bottom surface of the lower bottle body.
8. The novel water injection test device according to claim 7, wherein the joint of the air inlet pipe and the bottom surface of the lower bottle body is filled with sealant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320074351.1U CN219348565U (en) | 2023-01-10 | 2023-01-10 | Novel water injection test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320074351.1U CN219348565U (en) | 2023-01-10 | 2023-01-10 | Novel water injection test device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219348565U true CN219348565U (en) | 2023-07-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320074351.1U Active CN219348565U (en) | 2023-01-10 | 2023-01-10 | Novel water injection test device |
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| Country | Link |
|---|---|
| CN (1) | CN219348565U (en) |
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2023
- 2023-01-10 CN CN202320074351.1U patent/CN219348565U/en active Active
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