CN213902197U - Shallow soil freezing depth monitoring device - Google Patents
Shallow soil freezing depth monitoring device Download PDFInfo
- Publication number
- CN213902197U CN213902197U CN202022856046.7U CN202022856046U CN213902197U CN 213902197 U CN213902197 U CN 213902197U CN 202022856046 U CN202022856046 U CN 202022856046U CN 213902197 U CN213902197 U CN 213902197U
- Authority
- CN
- China
- Prior art keywords
- head
- tube
- outer tube
- scale
- pagoda head
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
Abstract
The utility model discloses a shallow soil freezes degree of depth monitoring devices, outer tube including hollow structure, the top of outer tube is covered with the pipe cap, and the bottom threaded connection of outer tube has the bottom, the inner prop of the vertical setting of bottom face fixedly connected with of pipe cap, the inner prop is located the inside of outer tube, and the bottom fixedly connected with of inner prop goes up baby's head, the other end of going up baby's head of a tower is embedded in the one end of latex tube, the other end of latex tube is embedded to have lower baby's head of a tower, fixed welding has the chain between lower baby's head of a tower and the last baby's head of a tower, and the inside of latex tube is filled with liquid water. The utility model discloses a thin water column in the soil temperature's conduction messenger latex pipe freezes or melts the freezing degree of depth that monitors soil, and this device easily installs and uses, and is with low costs, and is easy and simple to handle, structurally guarantees the heat conduction of horizontal direction to the utmost, and the heat conduction of separation vertical direction to soil freezing degree of depth's measurement accuracy has been improved.
Description
Technical Field
The utility model relates to a soil monitoring technology field, concretely relates to shallow soil freezes degree of depth monitoring devices.
Background
In cold regions, after the surface temperature is reduced to below 0 ℃, the soil with certain water content is gradually frozen from the surface layer to the deep layer along with the heat exchange between the soil and the atmospheric environment, and the freezing depth is determined by the cold degree of the environmental temperature. The freezing depth of the soil changes with the change of the environmental temperature. Research shows that a large amount of greenhouse gases released in the alternating process of freezing and thawing of soil play an important role in global greenhouse gas increase, and therefore, research on the influence of soil freezing and thawing cycles on greenhouse gas emission is a hot spot of current research. The freezing depth of the soil is an important monitoring index in research.
The invention patent with the application number of 201910897521.4 discloses a device for monitoring the freezing depth of soil by adopting a methylene blue solution, but because a certain solution needs to be prepared and has certain toxicity, the ecological environment is easily damaged. In addition, the device for measuring the soil freezing depth by adopting the soil resistivity change needs additional power supply, has higher cost and is not beneficial to large-scale popularization and application.
Therefore, it is an urgent technical problem to be solved by those skilled in the art to provide a soil freezing depth monitoring device which is simple to use and low in cost.
SUMMERY OF THE UTILITY MODEL
Utility model purpose: the utility model aims at providing a shallow soil freezes degree of depth monitoring devices has solved current measurement soil and has frozen the device of the degree of depth and need additionally supply power, the higher problem of device cost.
The technical scheme is as follows: the utility model relates to a shallow soil freezes degree of depth monitoring devices, outer tube including hollow structure, the top of outer tube is covered with the pipe cap, and the bottom threaded connection of outer tube has the bottom, the inner prop of the vertical setting of bottom face fixedly connected with of pipe cap, the inner prop is located the inside of outer tube, and the bottom fixedly connected with of inner prop goes up the pagoda head, the other end of going up the pagoda head is embedded in the one end of latex tube, the other end of latex tube is embedded to have a lower pagoda head, fixed welding has the chain between lower pagoda head and the last pagoda head, the inside of latex tube is filled with liquid water.
Furthermore, the outer wall of the inner column is wrapped with heat insulation cotton. The heat insulation cotton is used for preventing accumulated snow on the ground and the environment temperature from being excessively conducted to liquid water in the latex pipe, and therefore the accuracy of measuring the frozen depth of the soil is affected.
Furthermore, a connecting piece is arranged between the inner column and the upper pagoda head, the top end of the connecting piece is sleeved at the bottom end of the inner column and is fixedly connected with the inner column through a bolt, and the bottom end of the connecting piece is in threaded connection with the upper pagoda head. The connecting piece can inject water into the latex tube from the upper pagoda head after being detached from the upper pagoda head, thereby ensuring no blockage in the water injection process and being beneficial to the cleaning and maintenance of the latex tube.
Further, a pipe cap heat insulation layer is arranged between the outer pipe and the pipe cap. The pipe cap insulating layer enables the inner part of the outer pipe to form a closed space, ensures that the air temperature in the outer pipe is determined by lateral ambient temperature conduction, and reduces the influence of the exchange of external air and internal air on the temperature conduction and the influence on the final measurement accuracy.
Furthermore, the upper tower head and the lower tower head are both hollow structures, two ends of the chain are respectively and fixedly welded on the inner walls of the upper tower head and the lower tower head, and the bottom end of the lower tower head is in threaded connection with a sealing cover. The closing cap is the metal material, and as the counter weight simultaneously, the closing cap makes the inside water injection back chain of latex pipe be in the state of stretching straight, and when the intraductal liquid water of latex took place to freeze, solid-state water volume expansion was outwards along the latex pipe wall, can not exert an influence to latex pipe length to avoid the measuring error because of liquid water expansion arouses.
Furthermore, be equipped with first scale on the outer wall of outer tube, the zero scale mark of first scale corresponds with the bottom end face position of last pagoda head, and first scale is with zero scale mark ascending reading.
Furthermore, the outer wall of the latex tube is provided with a second scale, the zero scale mark of the second scale corresponds to the bottom end face of the upper pagoda head, and the second scale is read downwards along the zero scale mark.
Furthermore, metal nails which are radially arranged along the outer tube are embedded in the tube wall of the outer tube below a zero scale line of the first scale, and a plurality of groups of the metal nails are uniformly distributed on the metal nails. Inside metal nail conducts the outer tube with soil heat for the heat exchange in soil and the outer tube.
Has the advantages that: the utility model discloses a thin water column in the soil temperature's conduction messenger latex pipe freezes or melts the freezing degree of depth that monitors soil, and this device easily installs and uses, and is with low costs, and is easy and simple to handle, structurally guarantees the heat conduction of horizontal direction to the utmost, and the heat conduction of separation vertical direction to soil freezing degree of depth's measurement accuracy has been improved.
Drawings
FIG. 1 is a schematic view of the internal structure of the present invention;
FIG. 2 is a schematic view of the present invention;
fig. 3 is a schematic view of the structure of the connector.
Detailed Description
The invention will be further described with reference to the following figures and examples:
as shown in fig. 1 to 3, the shallow soil freezing depth monitoring device of the present invention comprises an outer tube 1 with a hollow structure, in order to measure the soil freezing depth as accurately as possible, the thickness of the outer tube 1 is not too thick, in this embodiment, a PVC tube with an outer diameter of 40mm and a wall thickness of 3mm is used, the top end of the outer tube 1 is covered with a tube cap 2, the bottom end of the outer tube 1 is connected with a bottom cover 3 in a threaded manner, in order to reduce the influence of the environment on the measurement accuracy, the pipe cap 2 is made of plastic with low thermal conductivity, the bottom cover 3 is made of metal copper material, a pipe cap heat insulation layer 4 is arranged between the outer pipe 1 and the pipe cap 2, and the pipe cap heat insulation layer 4 is tightly attached to the pipe wall of the outer pipe 1, so that a closed space is formed inside the outer pipe 1, the air temperature inside the outer pipe 1 is ensured to be determined by lateral ambient temperature conduction, and the influence of the exchange of external air and internal air on the temperature conduction and the influence on the final measurement accuracy are reduced;
the bottom end face of the pipe cap 2 is fixedly connected with a vertically arranged inner column 5, the inner column 5 is located inside the outer pipe 1, the inner column 5 is a solid PVC rod with the diameter of 20mm, heat insulation cotton 6 wraps the outer wall of the inner column 5, the heat insulation cotton 6 is about 2mm thick, a gap between the inner column 5 and the inner wall of the outer pipe 1 after wrapping the heat insulation cotton 6 is small, and the heat insulation cotton 6 is used for preventing accumulated snow on the ground and the ambient temperature from being excessively transmitted to liquid water inside the latex pipe 9 to influence the measurement accuracy of the soil freezing depth;
the bottom end of the inner column 5 is fixedly connected with an upper pagoda head 7, so that water is injected into the latex tube 9 and cleaned conveniently, a connecting piece 8 is arranged between the inner column 5 and the upper pagoda head 7, the top end of the connecting piece 8 is sleeved at the bottom end of the inner column 5 and is fixedly connected with the inner column 5 through a bolt, and the bottom end of the connecting piece 8 is in threaded connection with the upper pagoda head 7; after the connecting piece 8 and the upper pagoda head 7 are disassembled, water can be injected into the latex tube 9 from the upper pagoda head 7, so that no blockage is caused in the water injection process, and the cleaning and maintenance of the latex tube 9 are facilitated;
the other end of the upper pagoda head 7 is embedded in one end of a latex tube 9, the inner diameter of the latex tube 9 is 5mm, the other end of the latex tube 9 is embedded with a lower pagoda head 10, the upper pagoda head 7 and the lower pagoda head 10 are both of hollow structures, and water flow can smoothly flow into the latex tube 9 through the upper pagoda head 7;
a chain 12 is fixedly welded between the lower pagoda head 10 and the upper pagoda head 7, two ends of the chain 12 are fixedly welded on the inner walls of the upper pagoda head 7 and the lower pagoda head 10 respectively, the latex tube 9 is filled with liquid water, the bottom end of the lower pagoda head 10 is in threaded connection with a closed cover 13, the closed cover 13 is made of metal materials and serves as a balance weight, the closed cover 13 enables the chain 12 to be in a stretched straight state after water is injected into the latex tube 9, when the liquid water in the latex tube 9 is frozen, the volume expansion of the solid water is outward along the wall of the latex tube 9, the length of the latex tube 9 cannot be influenced, therefore, the measurement error caused by the expansion of the liquid water is avoided, and in order to reduce the environmental influence, the closed cover 13 is made of metal materials and can rapidly conduct heat of soil with the depth nearby into a water column in the latex tube 9;
in order to facilitate reading, the outer wall of the outer tube 1 is provided with a first scale 14, the zero scale line of the first scale 14 corresponds to the bottom end face of the upper pagoda head 7, the first scale 14 reads upwards by the zero scale line and marks centimeter scales according to actual length, when the device is installed, the zero scale line of the first scale 14 is flush with the soil horizontal plane, and the scales above the zero scale line can be used for detecting the snowfall depth at the same time; the outer wall of the latex tube 9 is provided with a second scale 15, the zero scale line of the second scale 15 corresponds to the bottom end face of the upper pagoda head 7, the second scale 15 reads downwards by the zero scale line and marks centimeter scales according to the actual length, and the frozen depth of the soil can be read when the device is used;
be located 1 pipe wall of outer tube 1 below the zero scale mark of first scale 14 and embed the metal nail 11 that has radially set up along outer tube 1, 11 evenly distributed of metal nail have the multiunit, and inside 11 metal nail conduct soil heat to outer tube 1 for the heat exchange in soil and the outer tube 1 inside.
The working principle is as follows: when in use, the latex tube 9 is filled with liquid water by adopting a syringe or a small funnel through the upper pagoda head 7, and discharges the gas in the latex tube 9, the chain 12 in the latex tube 9 is in a stretched state, the inner column 5 and the components connected with the lower end thereof are positioned in the outer tube 1, the positions of all parts in the outer pipe 1 are fixed and do not contact with the inner wall of the outer pipe 1 through the matching of the pipe cap 2 and the outer pipe 1, the lower part of the outer pipe 1 is vertically inserted into the soil to be detected, the outer wall of the first scale 14 is in close contact with the soil, the zero scale line of the first scale is level with the soil level, the freezing depth of the soil is monitored by freezing or melting the fine water column in the latex tube 9 through the conduction of the soil temperature, the device can ensure the heat conduction in the horizontal direction to the greatest extent on the structure, and the heat conduction in the vertical direction is blocked, so that the measurement accuracy of the soil freezing depth is improved.
Claims (8)
1. The utility model provides a shallow soil freezes degree of depth monitoring devices, includes hollow structure's outer tube, its characterized in that: the top of outer tube is covered with the pipe cap, and the bottom threaded connection of outer tube has the bottom, the inner column of the vertical setting of bottom face fixedly connected with of pipe cap, the inner column is located the inside of outer tube, and the pagoda head is gone up to the bottom fixedly connected with of inner column, the other end of going up the pagoda head is embedded in the one end of latex tube, the other end of latex tube is embedded to have a lower pagoda head, fixed welding has the chain between lower pagoda head and the last pagoda head, the inside of latex tube is filled with liquid water.
2. The shallow soil freezing depth monitoring device according to claim 1, wherein: the outer wall of the inner column is wrapped with heat insulation cotton.
3. The shallow soil freezing depth monitoring device according to claim 1, wherein: and a connecting piece is arranged between the inner column and the upper pagoda head, the top end of the connecting piece is sleeved at the bottom end of the inner column and is fixedly connected with the inner column through a bolt, and the bottom end of the connecting piece is in threaded connection with the upper pagoda head.
4. The shallow soil freezing depth monitoring device according to claim 1, wherein: and a pipe cap heat insulation layer is arranged between the outer pipe and the pipe cap.
5. The shallow soil freezing depth monitoring device according to claim 1, wherein: go up pagoda head and tower head is hollow structure down, the both ends of chain are fixed welding respectively on the inner wall at last pagoda head and tower head down, the bottom threaded connection of tower head down has the closing cap.
6. The shallow soil freezing depth monitoring device according to claim 1, wherein: the outer wall of the outer tube is provided with a first scale, the zero scale mark of the first scale corresponds to the bottom end face of the upper pagoda head, and the first scale reads upwards by the zero scale mark.
7. The shallow soil freezing depth monitoring device according to claim 1, wherein: the outer wall of the latex tube is provided with a second scale, the zero scale mark of the second scale corresponds to the bottom end face of the upper pagoda head, and the second scale reads downwards along the zero scale mark.
8. The shallow soil freezing depth monitoring device according to claim 7, wherein: the metal nails which are radially arranged along the outer tube are embedded in the tube wall of the outer tube below the zero scale line of the first scale, and a plurality of groups of metal nails are uniformly distributed on the metal nails.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022856046.7U CN213902197U (en) | 2020-12-02 | 2020-12-02 | Shallow soil freezing depth monitoring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022856046.7U CN213902197U (en) | 2020-12-02 | 2020-12-02 | Shallow soil freezing depth monitoring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213902197U true CN213902197U (en) | 2021-08-06 |
Family
ID=77101208
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022856046.7U Active CN213902197U (en) | 2020-12-02 | 2020-12-02 | Shallow soil freezing depth monitoring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213902197U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117387532A (en) * | 2023-12-12 | 2024-01-12 | 哈尔滨师范大学 | Soil freezing depth measuring device and measuring method |
-
2020
- 2020-12-02 CN CN202022856046.7U patent/CN213902197U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117387532A (en) * | 2023-12-12 | 2024-01-12 | 哈尔滨师范大学 | Soil freezing depth measuring device and measuring method |
| CN117387532B (en) * | 2023-12-12 | 2024-02-23 | 哈尔滨师范大学 | Soil freezing depth measuring device and measuring method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102520003A (en) | Device for testing ambient-temperature gradient freezing and thawing processes | |
| CN213902197U (en) | Shallow soil freezing depth monitoring device | |
| CN104730100B (en) | A kind of device for testing aqueous porous media in frozen-thaw process reclaimed water thermal change feature | |
| ITSA20080028A1 (en) | MANIFOLD TUBE FOR LINEAR SOLAR CONCENTRATORS WITH HIGH TEMPERATURE MICROWASHERS AS A CARRIER. | |
| CN108318607B (en) | Temperature-controllable transparent static box and greenhouse gas field in-situ acquisition method | |
| CN102879235A (en) | Soil gas collector for alternately frequent low temperature, drought, wet, freezing and thawing soil | |
| CN105928966A (en) | Frost heave test barrel and test method thereof | |
| CN103674132A (en) | Flow measuring device and method for non-full-flow pipe outlet | |
| CN201666827U (en) | Quasi-adiabatic open-type argon triple point reproduction device | |
| CN110514135A (en) | A kind of soil frozen depth measuring device and measuring method | |
| CN104749209A (en) | Vacuum inner-container type unidirectional freezing test device for closed system | |
| CN203606033U (en) | A voltage transformer thermometer temperature bulb protective device | |
| CN202195972U (en) | Soil gas collector for soil in environments with low temperature, drought, moist as well as alternate and frequent freeze-thaw | |
| CN2762087Y (en) | Heat insulation packed temperature measuring probe | |
| CN208206346U (en) | Mass concrete temperature measuring device | |
| CN202599591U (en) | Pore water pressure measuring device | |
| CN209545898U (en) | A kind of hydrologic monitoring rainfall gauge defroster | |
| CN104458059A (en) | Calibration device of thermocouple series | |
| CN111964640B (en) | Glass detection device | |
| CN206514964U (en) | A kind of outdoor cold-resistant type bimetallic thermometer | |
| CN208568019U (en) | A kind of separator fluid level sampling device | |
| CN209231337U (en) | A kind of dry earth pillar aqueous vapor heat migration observation experiment device | |
| CN208106418U (en) | A kind of New Inclined energy conservation frigo | |
| WO2020042402A1 (en) | Liquid level monitoring device for built-in liquid nitrogen | |
| CN111255449A (en) | Sampling hole structure for oil pipe |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |