CN215066643U - Pot cover effect test device - Google Patents
Pot cover effect test device Download PDFInfo
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- CN215066643U CN215066643U CN202120330997.2U CN202120330997U CN215066643U CN 215066643 U CN215066643 U CN 215066643U CN 202120330997 U CN202120330997 U CN 202120330997U CN 215066643 U CN215066643 U CN 215066643U
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- pot cover
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- 238000012360 testing method Methods 0.000 title claims abstract description 44
- 230000000694 effects Effects 0.000 title claims abstract description 25
- 239000002689 soil Substances 0.000 claims abstract description 66
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 60
- 238000010438 heat treatment Methods 0.000 claims abstract description 21
- 238000001816 cooling Methods 0.000 claims abstract description 9
- 230000000903 blocking effect Effects 0.000 claims description 6
- 238000009413 insulation Methods 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 4
- 238000004321 preservation Methods 0.000 claims description 4
- 239000005457 ice water Substances 0.000 claims description 3
- 238000005187 foaming Methods 0.000 claims description 2
- 229920002635 polyurethane Polymers 0.000 claims description 2
- 239000004814 polyurethane Substances 0.000 claims description 2
- 238000010276 construction Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 238000005527 soil sampling Methods 0.000 description 1
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Abstract
The utility model discloses a "pot cover effect" test device. And a group of heating and heat-insulating circuits are added in the water and gas supply section to fully heat water and insulate heat, so that the generation of water vapor is accelerated, sectional combination is adopted in the soil sample placing section, and an air inlet valve is arranged at the bottom of the soil sample placing section. After being heated, the water vapor controls the air inflow by adjusting the air inlet valve, then enters the test section, and finally is condensed in the water vapor cooling section. The utility model discloses a "pot cover effect" test device can heat the aqueous vapor, adjust the air input, and assembled structure convenient to detach washs.
Description
Technical Field
The utility model relates to a civil engineering technical field, concretely relates to "pot cover effect" test device.
Background
In the 21 st century, with the continuous development of social economy, the urbanization process is accelerated, and the area of urban buildings and roads is rapidly increased. Large areas of hardened soil surface coverage are required. This hinders the evaporation effect on the surface of the soil mass and often causes a phenomenon similar to the accumulation of water under the pan cover. This phenomenon is called "pot cover effect". The pot cover effect is widely applied to engineering such as buildings, highways, airports and the like, and the pot cover effect causes the increase of the saturation degree of soil, the reduction of the strength, the increase of the accumulated deformation of the soil, the induction of uneven settlement, even frost heaving and turning over of slurry in winter, and the serious damage to the overlying structures of a pavement, a track slab and the like serving as a covering layer. At present, a pot cover effect simulation device used in a laboratory consists of a water vapor supply section, a soil sample placing section and a water vapor cooling section. The working mode is as follows: after the water is heated in the water-gas supply section, the tested soil sample is placed in the test section, water vapor is provided by the water-gas supply section, enters the soil sample through a hole in the bottom of the soil sample and finally reaches the water-gas cooling section, the water vapor condenses when meeting the cold, and the distribution of the water content of the soil layer is measured through the water-gas sensing device placed in the test section. However, in the test process, the water-gas supply section is difficult to control the change of the water-gas temperature and cannot effectively control the output quantity of the water-gas, and the soil sample test section is composed of a single pipe, so that when the test soil layer is complex, the actual condition of the soil sample is difficult to simulate, and the test result is easily influenced.
SUMMERY OF THE UTILITY MODEL
In order to overcome the not enough in the aspect of the placing means of present "pot cover effect" analogue means can not stabilize the aqueous vapor supply, adjust the volume of aqueous vapor and soil sample, the utility model provides a "pot cover effect" test device optimizes the improvement on its original structural basis, and the device can not only stabilize the volume of aqueous vapor supply, regulation aqueous vapor, enables placing more convenient reasonable of soil sample moreover.
In order to achieve the above object, the utility model provides a "pot cover effect" test device, its characterized in that: comprises a base, a water and gas supply section, a soil sample placing section, a soil sample testing section and a control system which are sequentially connected from bottom to top; a heating heat retainer is arranged in the water gas supply section;
the water and gas supply section is also provided with a group of heating temperature control elements, and when the heating heat retainer heats water to the rated temperature, the heating mode is automatically stopped and switched into a heat preservation circuit; a blocking net is arranged between the water gas supply section and the soil sample test section;
an air inlet valve is arranged at the bottom of the soil sample placing section, the heating heat retainer heats water, and water vapor enters the soil sample testing section after the air inlet valve adjusts the air inflow; during the heating process, the water vapor enters the soil sample placing section,
the soil sample placing section is of a sectional connection structure, and an interface is arranged between each section, so that the soil samples can be conveniently placed in a layered mode when tested soil layers are complex and the number of the soil layers is large.
As a preferred scheme, the soil sample placing section is of a sectional combined structure and comprises a plurality of access sections, a plurality of connecting sections and a plurality of screws; mounting grooves are formed in two ends of the connecting section, protruding fixing ends are arranged at two ends of the access section, the fixing ends are arranged in the mounting grooves and fixedly connected with the access section and the connecting section through screws, and therefore the air tightness of the soil sample placing section is guaranteed to be intact;
furthermore, a valve regulator and a flow detector are arranged between the air inlet valve and the blocking net in the soil sample placing section, and the flow detector is used for detecting the passing flow of water vapor; along with the increase of vapor in the soil sample section of placing, control system records aqueous vapor flow through the flow detection meter, and then the size of valve regulator automatically regulated admission valve controls the air input to keep the stability of air input.
Furthermore, the valve regulator and the flow detector in the soil sample placing section are connected with the heating warmer in parallel; the valve regulator is connected with the flow detector in series; fuses are also provided to ensure the safety of the circuit, which will spontaneously break if the temperature or current exceeds a rated value.
Furthermore, the water and gas supply section comprises a connector and a water inlet, and the ice and water mixture enters the water and gas cooling section through the water inlet and is fixedly connected with the soil sample placing section through the connector; the outer walls of the water-air supply section, the soil sample test section and the water-air cooling section of the test instrument are respectively provided with a heat insulation layer so as to prevent the external environment from influencing the test.
Further, the connector is a snap-in type fastener; the water inlet is a circular opening with the diameter of 6 cm; the heat-insulating layer is made of 0.8cm of foaming polyurethane.
Furthermore, the air inlet valve is of a petal type switch structure.
The working principle of the utility model is as follows:
1. in the water-gas supply section of the pot cover effect test device, a group of heating temperature control elements are arranged, and when water is heated to a certain temperature, a heat-preservation circuit is switched. This allows the moisture to reach a certain temperature quickly and to keep the temperature constant during the test.
2. In the pot cover effect test device, an air inlet valve and a flow detector are installed at the bottom of a soil sample placing section, when water vapor from a water vapor supply section enters the soil sample placing section, the flow detector arranged between the air inlet valve and a blocking net starts to record the flow of the water vapor when passing through the air inlet valve, then the air inlet valve is adjusted through a valve adjuster to control the air inflow, when the air inflow is large, the air inlet valve is automatically adjusted to be small, otherwise, the air inflow is adjusted to be large, and the purpose is to keep the stability of the air inflow.
3. The soil sample placing section of the pot cover effect test device adopts a sectional connection design, and an interface is reserved between every two sections, so that the soil samples can be conveniently placed in layers when tested soil layers are complex and the number of the soil layers is large.
The control system comprises a power supply, a flow detector switch and a valve regulator switch.
The utility model has the advantages and beneficial effects as follows:
the utility model discloses an automation equipment stabilizes the aqueous vapor supply through a set of heating heat preservation circuit in the aqueous vapor section of supplying with, places the section at the soil sample and adds the governing valve and adjust the air input of aqueous vapor with the flow detection meter, and the experimental section of soil sample adopts segmentation combination mode to connect, enables placing of soil sample convenient more reasonable, and the putting into of the soil sample of being convenient for takes out. The device guarantees the accuracy of test, simple structure.
Drawings
FIG. 1 is a schematic circuit diagram of a water vapor supply and air intake valve;
FIG. 2 is a longitudinal sectional view showing the construction of example 1 of the "pot lid effect" test apparatus;
FIGS. 3a-3c are cross-sectional views I-I of FIG. 2;
FIG. 4 is a longitudinal sectional view showing the construction of example 2 of the "pot lid effect" test device;
FIG. 5 is a cross-sectional view II-II of FIG. 2;
in the figure: 1. an ice-water mixture; 2. a heat-insulating layer; 3. soil sampling; 4. a valve adjuster; 5. water vapor; 6. warm water, 7. base; 8. a heating warmer; 9. an intake valve; 10. a barrier net; 11. a flow detector; 12. a connector; 13. a water inlet; 14. a connecting section; 15. an access segment; 16. and (4) screws.
Detailed Description
The embodiments of the present invention will be described in detail with reference to the accompanying drawings and examples.
As shown in FIG. 1, the valve regulator 4 and the flow detector 11 are connected in parallel with the heating warmer 8, wherein the valve regulator 4 is connected in series with the flow detector 11. In order to ensure the safety of the circuit, the device is provided with fuses which open spontaneously as soon as the temperature or the current exceeds a nominal value.
Example 1
In example 1 shown in FIG. 2, a heating and heat-retaining device 8 is placed on a base 7 and is in contact with warm water 6 to form a water gas supply section, the base 8 is 3cm high and has a diameter of 30cm, the heating and heat-retaining device 8 is 4cm high, the water storage section 5 is 6cm high, and the sections of the two sections are circles with a diameter of 24 cm; in the soil sample placing section, the section of the air inlet valve 9 is shown in fig. 3, the diameter is 22cm, the interval between the blocking net 10 and the air inlet valve 9 is 1cm, the flow rate detector 11 is placed in the middle, the soil sample placing section is designed in an assembling mode (shown in fig. 4), specifically, an access section 15 is installed on an original test section 14 and fixed through bolts 16, and good air tightness is guaranteed; the ice-water mixture 1 enters the water cooling section through the water inlet 13 and is fixedly connected with the soil sample placing section through the connector 12; the whole testing instrument is provided with the heat insulation layer 2 to prevent the external environment from influencing the test.
Example 2
In the embodiment 2 (combined design of the soil sample test section) shown in fig. 3a-3c, the air inlet valve 9 and the valve regulator 4 are installed at the bottom of the soil sample placing section, the air inlet valve 9 adopts a petal type switch design, fig. 3a-3c show the shape diagrams of the fully opened, half opened and closed states of the air inlet valve 9, the flow rate detector 11 records the flow rate of water vapor, and the size of the air inlet valve 9 is adjusted through the valve regulator 4, so that the purpose of stably controlling the flow rate of the water vapor is achieved.
In the embodiment 2 shown in fig. 4-5, the soil sample placing section is of a combined assembly design (as shown in fig. 4), specifically: the original test section 14 is provided with 4 mounting grooves corresponding to the 4 protruding fixed ends of the access section 15, and after the mounting grooves and the protruding fixed ends are contacted, the mounting grooves and the protruding fixed ends are fixed through screws 16, so that good air tightness is guaranteed.
Claims (7)
1. A pot cover effect test device is characterized in that: the device comprises a base (7), a water and gas supply section, a soil sample placing section, a soil sample testing section and a water and gas cooling section which are sequentially connected from bottom to top, and also comprises a control system; a heating heat retainer (8) is arranged in the water gas supply section;
a group of heating temperature control elements are also arranged in the water gas supply section, and when the heating heat retainer (8) heats water to the rated temperature, the heating mode is automatically stopped and switched into a heat preservation circuit; a blocking net (10) is arranged between the water gas supply section and the soil sample test section;
an air inlet valve (9) is arranged at the bottom of the soil sample placing section, the heating heat retainer (8) heats water, and water vapor enters the soil sample testing section after the air inflow is adjusted through the air inlet valve (9); during the heating process, the water vapor enters the soil sample placing section,
the soil sample placing section is of a sectional connection structure, and an interface is arranged between each section, so that the soil samples can be conveniently placed in a layered mode when tested soil layers are complex and the number of the soil layers is large.
2. The pot cover effect test device of claim 1, wherein: the soil sample placing section is of a sectional combined structure and comprises a plurality of access sections (14), a plurality of connecting sections (15) and a plurality of screws (16); mounting grooves are formed in two ends of the connecting section (15), protruding fixing ends are arranged at two ends of the access section (14), the fixing ends are arranged in the mounting grooves and connected and fixed with the access section (14) and the connecting section (15) through screws (16), and therefore the completeness of air tightness of the soil sample placing section is guaranteed;
3. the pot cover effect test device of claim 1 or 2, wherein: a valve regulator (4) and a flow detector (11) are arranged between the air inlet valve (9) and the blocking net (10) in the soil sample placing section, and the flow detector (11) is used for detecting the passing flow of water vapor; along with the increase of water vapor in the soil sample placing section, a control system records the water flow through a flow detector (11), and then a valve regulator (4) automatically regulates the size of an air inlet valve (9) to control the air inflow so as to keep the stability of the air inflow.
4. The pot cover effect test device of claim 3, wherein: the valve regulator (4) and the flow detector (11) in the soil sample placing section are connected with the heating heat retainer (8) in parallel; the valve regulator (4) is connected with the flow detector (11) in series; fuses are also provided to ensure the safety of the circuit, which will spontaneously break if the temperature or current exceeds a rated value.
5. The pot cover effect test device of claim 4, wherein: the water-gas supply section comprises a connector (12) and a water inlet (13), and the ice-water mixture (1) enters the water-gas cooling section through the water inlet (13) and is fixedly connected with the soil sample placement section through the connector (12); the outer walls of the water and gas supply section, the soil sample test section and the water and gas cooling section are respectively provided with a heat insulation layer (2) to prevent the external environment from influencing the test.
6. The pot cover effect test device of claim 5, wherein: the connector (12) is a snap-in type fixer; the water inlet (13) is a circular opening with the diameter of 6 cm; the heat insulation layer (2) is made of 0.8cm of foaming polyurethane.
7. The pot cover effect test device of claim 6, wherein: the air inlet valve (9) is of a petal type switch structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120330997.2U CN215066643U (en) | 2021-02-05 | 2021-02-05 | Pot cover effect test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120330997.2U CN215066643U (en) | 2021-02-05 | 2021-02-05 | Pot cover effect test device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215066643U true CN215066643U (en) | 2021-12-07 |
Family
ID=79255509
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120330997.2U Expired - Fee Related CN215066643U (en) | 2021-02-05 | 2021-02-05 | Pot cover effect test device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215066643U (en) |
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2021
- 2021-02-05 CN CN202120330997.2U patent/CN215066643U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20211207 |
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| CF01 | Termination of patent right due to non-payment of annual fee |