CN114017122A - Monitoring device for indicating air migration on surface of mural - Google Patents
Monitoring device for indicating air migration on surface of mural Download PDFInfo
- Publication number
- CN114017122A CN114017122A CN202111298820.XA CN202111298820A CN114017122A CN 114017122 A CN114017122 A CN 114017122A CN 202111298820 A CN202111298820 A CN 202111298820A CN 114017122 A CN114017122 A CN 114017122A
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- Prior art keywords
- funnel
- ground
- air
- humidity
- mural
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- 230000005012 migration Effects 0.000 title claims abstract description 13
- 238000013508 migration Methods 0.000 title claims abstract description 13
- 238000012806 monitoring device Methods 0.000 title claims abstract description 5
- 230000000694 effects Effects 0.000 claims abstract description 23
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 22
- 238000000034 method Methods 0.000 claims abstract description 8
- 239000002775 capsule Substances 0.000 claims abstract description 5
- 238000012544 monitoring process Methods 0.000 claims description 15
- 230000006698 induction Effects 0.000 claims description 3
- 230000001066 destructive effect Effects 0.000 claims 1
- 230000008859 change Effects 0.000 abstract description 9
- 238000010422 painting Methods 0.000 description 12
- 239000000523 sample Substances 0.000 description 6
- 239000004814 polyurethane Substances 0.000 description 3
- 238000005273 aeration Methods 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 201000010099 disease Diseases 0.000 description 2
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 229920002635 polyurethane Polymers 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- ASOKPJOREAFHNY-UHFFFAOYSA-N 1-Hydroxybenzotriazole Chemical compound C1=CC=C2N(O)N=NC2=C1 ASOKPJOREAFHNY-UHFFFAOYSA-N 0.000 description 1
- 235000005747 Carum carvi Nutrition 0.000 description 1
- 240000000467 Carum carvi Species 0.000 description 1
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 238000007605 air drying Methods 0.000 description 1
- WHGYBXFWUBPSRW-FOUAGVGXSA-N beta-cyclodextrin Chemical compound OC[C@H]([C@H]([C@@H]([C@H]1O)O)O[C@H]2O[C@@H]([C@@H](O[C@H]3O[C@H](CO)[C@H]([C@@H]([C@H]3O)O)O[C@H]3O[C@H](CO)[C@H]([C@@H]([C@H]3O)O)O[C@H]3O[C@H](CO)[C@H]([C@@H]([C@H]3O)O)O[C@H]3O[C@H](CO)[C@H]([C@@H]([C@H]3O)O)O3)[C@H](O)[C@H]2O)CO)O[C@@H]1O[C@H]1[C@H](O)[C@@H](O)[C@@H]3O[C@@H]1CO WHGYBXFWUBPSRW-FOUAGVGXSA-N 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
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- 239000002344 surface layer Substances 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F17/00—Methods or devices for use in mines or tunnels, not covered elsewhere
- E21F17/18—Special adaptations of signalling or alarm devices
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F17/00—Methods or devices for use in mines or tunnels, not covered elsewhere
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
Abstract
The invention discloses a method for forming, using, installing and interpreting a sensing monitoring device for ground gas migration, which comprises a PU funnel; an activated carbon capsule; a temperature and humidity monitor (HOBO-U23-002A). The relative humidity of air entering the funnel is stabilized by using activated carbon, the influence of weather change is weakened, and then the relative humidity of the air in the funnel is monitored by using HOBO-U23-002A, and the rise and fall and the strength of the earth's atmosphere activity are indicated by the change of the relative humidity. The invention can monitor the ground gas activity on the surface of the fresco without damage and provides technical and equipment support for protecting the cultural relics in the cave.
Description
Technical Field
The invention relates to a device for monitoring the ground air migration on the surface of a mural. In particular, a device for indicating and monitoring the migration direction and activity intensity of mural air by measuring the relative humidity of the mural surface air through a funnel. The device can measure the slight change of the surface air humidity of the cavern wall painting, and the migration direction and the strength of the ground gas on the interface of the cavern wall painting are indicated through the change of the air humidity, so that technical support is provided for the cavern wall painting protection.
Background
The ground qi refers to the air in the qi-bag. The research shows that when the aeration zone is used as a closed system in the process of atmospheric pressure fluctuation, the earth atmosphere rises and falls when certain atmospheric pressure fluctuation exists outside. When the atmospheric pressure is reduced, a humid airflow flows out, and the ground gas rises; when the atmospheric pressure rises, dry gas enters the ground surface, indicating that the ground gas is falling. According to the Boyle's law, the fluctuation quantity of the earth's atmosphere is calculated to be in direct proportion to the fluctuation amplitude of the atmospheric pressure and the thickness of the aeration zone. The earth's atmosphere is mainly affected by atmospheric pressure fluctuations.
A plurality of Buddhist grottos are stored along the ancient silk road, and a large number of exquisite wall paintings and color plastics stored in the grottos are important cultural heritages in China and have important historical, scientific and cultural values. Among them, the grotto group represented by mogao grotto is listed in the world cultural heritage catalog by the textbook organization of the united nations as long as 1987 because of its large scale, complete preservation and rich content, and becomes a common mental wealth for all mankind. For a long time, diseases related to underground lifting, such as caraway wall paintings, mildew, hollowing, shortenine and the like exist. Numerous researchers found that moisture is the most active factor causing mural diseases, and water vapor is an important component of ground gas. However, at the present stage, neither methods for studying the ground qi nor devices for monitoring the activity rules and characteristics of the ground qi have been provided, which has become an important bottleneck for restricting the protection of the grotto wall painting. Therefore, the device and the method for monitoring and indicating the ground gas lifting activity on the surface of the wall painting have great significance for cave cultural relic protection and the like.
Disclosure of Invention
In summary, the present invention provides a device for monitoring activity changes of cavern wall paintings or ground surface gas by taking the elevation of the cavern ground surface and the ground surface gas of the wall paintings as the monitoring object. The device is used for monitoring the ground-qi activity, determining the strength of the ground-qi activity in a monitoring area, indicating the direction of the ground-qi activity and providing scientific technical means for protecting the cultural relics in the cave.
The purpose of the invention is realized as follows:
in order to monitor the earth's atmosphere activity, the change of the relative humidity of the air on the surface layer of the earth or the wall when the earth rises or falls is used for indicating the earth's atmosphere activity. But in practice the earth's surface is not directly monitored for the effect of earth's air activity on air humidity. The main reason is that the air above the earth surface diffuses rapidly by convection, so that the moisture in the earth's air with a small amount of moisture is lost in the diffusion flow of the atmosphere. Therefore, the applicant reduces the influence of atmospheric convection and water vapor diffusion on the humidity of the ground surface by a method of placing the funnel on the ground surface, and increases the influence of the ground gas on the temperature and the humidity in the funnel pipe by utilizing the funnel structure. The relative humidity through monitoring funnel pipe end instructs the lift of ground gas, and then instructs the activity of ground gas: the humidity rises, and the ground gas rises; the humidity drops and the earth's atmosphere drops. In addition, small fluctuations in the temperature of the monitoring point in relation to the lifting of the earth's atmosphere can arise during the lifting activities of the earth's atmosphere due to the temperature difference between the atmosphere and the earth's atmosphere. Therefore, the rise and fall of the ground gas can be judged according to the temperature conditions inside and outside the soil and the monitored temperature change inside the pipe. The change in temperature of the earth's atmosphere is reduced compared to the relative humidity, but can also be used as an auxiliary indicator.
An induction monitoring device for ground air migration is composed of a Polyurethane (PU) funnel (1), an activated carbon bag (2) and a temperature and humidity monitor HOBO-U23-002A (3). The method is suitable for the wall painting of the cave or the ground, can monitor the ground gas activity without punching holes on the wall painting, and has no damage to the monitored object. Through falling and covering the funnel, install 1 humiture monitoring probe (HOBO-U23-002A) in funnel mouth of pipe inner 3cm department, monitor the humiture and fluctuate, utilize the change of intraductal humiture under the influence of ground qi activity to instruct the activity of ground qi. To prevent the influence of humidity changes in the outside atmosphere during the weather, a 3cm activated carbon capsule was plugged into the orifice.
The invention has the advantages that:
the rising and falling and the strength of the ground gas are determined by the response of the sensing probe to the change of the air humidity when the ground gas rises and falls in the pipe. The temperature and humidity instrument HOBO-U23-002A is exposed, and the recording interval can be adjusted at any time according to the requirement. The invention can determine the intensity and direction of the ground air migration on the surface of the fresco and has very important effect on protecting the cultural relics in the cave.
Drawings
FIG. 1 is a schematic diagram of the present invention. 1 is a PU funnel; 2 is an active carbon capsule; 3 is HOBO-U23-002A temperature and humidity monitor, the position of the probe is 3cm away from the small opening end of the funnel, and the lifting and moving directions of the earth atmosphere are indicated according to the monitored relative humidity. FIG. 2a is a graph of relative humidity and atmospheric pressure monitored; fig. 2b shows the atmospheric pressure profile after vertical inversion in synchronization with relative humidity.
Detailed Description
The invention adopts the following steps:
1) a12 cm diameter PU funnel, inverted and fixed to the monitoring surface. The diameter of the funnel can be determined according to specific conditions, a larger diameter can be used when the ground gas is weak, and the position of the monitoring probe in the small port is 3 cm.
2) A temperature and humidity monitor (HOBO-U23-002A, manufactured by ONSET, USA) was used. The induction probe is fixed in the opening of the funnel pipe by 3cm by glue in advance, and the ground gas activity is indicated by the monitored humidity.
3) An activated carbon capsule. The relative humidity of the breathable activated carbon wrapped by gauze is consistent with the local annual average humidity.
The manufacturing and operating process of the invention is as follows:
1) the inductive probe of the HOBO-U23-002A temperature and humidity monitor is fixed in the 3cm position in the opening of the funnel by glue in advance.
2) And preparing the active carbon at the hole opening by drying or air drying. The relative humidity of the activated carbon was adjusted according to the local year average humidity, and about 5ml of activated carbon was packed in the funnel by gauze.
3) The funnel is covered on the ground, the edge of the funnel is covered by fine soil, and the funnel is squeezed and sealed; for example, the ground gas activity of the vertical cliff wall of the cave is monitored: a) if the cliff surface or the wall has no mural, the edge of the funnel can be sealed by plasticine; b) if there is precious mural painting, cover 3 layers of 0.2mm rice paper on the funnel edge, then compact the funnel. Usually, need set up support fixed funnel in advance, adjust and control the elasticity degree of funnel and mural through the screw. It should not be too tight to avoid damaging the mural.
4) The recording interval may be set in advance according to experimental requirements.
5) And downloading data by using an HOBO data downloading setter, and determining the strength and the migration direction of the earth-atmosphere activity according to the fluctuation range and the trend of the humidity.
Claims (4)
1. An induction monitoring device for ground gas migration consists of a PU funnel (1); an activated carbon capsule (2); HOBO-U23-002A temperature and humidity monitor (3).
2. A device for monitoring the migration of air from a mural surface according to claim 1, wherein said device is applied to the surface of the wall without the need for a hole or PU funnel to monitor the migration of air from the surface.
3. The method of claim 1, wherein the relative humidity of air entering the funnel is stabilized with activated carbon to reduce the effects of weather changes.
4. The device according to claim 1, which is used exclusively for the non-destructive monitoring of the air migration of mural sites.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111298820.XA CN114017122A (en) | 2021-11-04 | 2021-11-04 | Monitoring device for indicating air migration on surface of mural |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111298820.XA CN114017122A (en) | 2021-11-04 | 2021-11-04 | Monitoring device for indicating air migration on surface of mural |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114017122A true CN114017122A (en) | 2022-02-08 |
Family
ID=80061260
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111298820.XA Pending CN114017122A (en) | 2021-11-04 | 2021-11-04 | Monitoring device for indicating air migration on surface of mural |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114017122A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4018500A (en) * | 1975-03-27 | 1977-04-19 | Martin Hamacher | Junction piece for electrical leads |
| US4587847A (en) * | 1981-10-07 | 1986-05-13 | Boliden Aktiebolag | Method for indicating concealed deposits |
| KR20020045242A (en) * | 2000-12-08 | 2002-06-19 | 국천표,오의진 | sprinkler for tunnel |
| US20120235828A1 (en) * | 2011-03-17 | 2012-09-20 | Fhf Funke + Huster Fernsig Gmbh | Signal device |
| CN103335936A (en) * | 2013-06-21 | 2013-10-02 | 沈阳建筑大学 | Damp and hot polluted atmosphere corrosion simulation system under effect of electromagnetic field |
| CN203559895U (en) * | 2012-01-30 | 2014-04-23 | 哈尼施费格尔技术公司 | Electric mining rope excavator, electric mining drilling machine and system |
| CN207248561U (en) * | 2017-07-18 | 2018-04-17 | 国家海洋环境监测中心 | Automate upside down funnel formula bubble collector |
| CN208207054U (en) * | 2018-05-26 | 2018-12-07 | 杭州顿恒科技有限公司 | A kind of equipotential high voltage electrified monitoring device |
| CN109444021A (en) * | 2018-12-18 | 2019-03-08 | 敦煌研究院 | A kind of device for monitoring, measuring the gas permeability of soil |
-
2021
- 2021-11-04 CN CN202111298820.XA patent/CN114017122A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4018500A (en) * | 1975-03-27 | 1977-04-19 | Martin Hamacher | Junction piece for electrical leads |
| US4587847A (en) * | 1981-10-07 | 1986-05-13 | Boliden Aktiebolag | Method for indicating concealed deposits |
| KR20020045242A (en) * | 2000-12-08 | 2002-06-19 | 국천표,오의진 | sprinkler for tunnel |
| US20120235828A1 (en) * | 2011-03-17 | 2012-09-20 | Fhf Funke + Huster Fernsig Gmbh | Signal device |
| CN203559895U (en) * | 2012-01-30 | 2014-04-23 | 哈尼施费格尔技术公司 | Electric mining rope excavator, electric mining drilling machine and system |
| CN103335936A (en) * | 2013-06-21 | 2013-10-02 | 沈阳建筑大学 | Damp and hot polluted atmosphere corrosion simulation system under effect of electromagnetic field |
| CN207248561U (en) * | 2017-07-18 | 2018-04-17 | 国家海洋环境监测中心 | Automate upside down funnel formula bubble collector |
| CN208207054U (en) * | 2018-05-26 | 2018-12-07 | 杭州顿恒科技有限公司 | A kind of equipotential high voltage electrified monitoring device |
| CN109444021A (en) * | 2018-12-18 | 2019-03-08 | 敦煌研究院 | A kind of device for monitoring, measuring the gas permeability of soil |
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| PB01 | Publication | ||
| PB01 | Publication | ||
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Application publication date: 20220208 |