AU2021105600A4 - Coverage type in-situ detection device and method of seafloor heat flow - Google Patents
Coverage type in-situ detection device and method of seafloor heat flow Download PDFInfo
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- AU2021105600A4 AU2021105600A4 AU2021105600A AU2021105600A AU2021105600A4 AU 2021105600 A4 AU2021105600 A4 AU 2021105600A4 AU 2021105600 A AU2021105600 A AU 2021105600A AU 2021105600 A AU2021105600 A AU 2021105600A AU 2021105600 A4 AU2021105600 A4 AU 2021105600A4
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- blanket type
- seafloor
- detection device
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- 238000001514 detection method Methods 0.000 title claims abstract description 65
- 238000011065 in-situ storage Methods 0.000 title claims abstract description 26
- 238000000034 method Methods 0.000 title claims abstract description 15
- 239000013535 sea water Substances 0.000 claims abstract description 13
- 230000005484 gravity Effects 0.000 claims abstract description 11
- 239000010410 layer Substances 0.000 claims description 88
- 229920001971 elastomer Polymers 0.000 claims description 19
- 238000011084 recovery Methods 0.000 claims description 18
- 230000008878 coupling Effects 0.000 claims description 14
- 238000010168 coupling process Methods 0.000 claims description 14
- 238000005859 coupling reaction Methods 0.000 claims description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 12
- 230000009471 action Effects 0.000 claims description 6
- 239000011324 bead Substances 0.000 claims description 6
- 239000007788 liquid Substances 0.000 claims description 6
- 230000004044 response Effects 0.000 claims description 6
- 239000006260 foam Substances 0.000 claims description 3
- 229920000642 polymer Polymers 0.000 claims description 3
- 239000011241 protective layer Substances 0.000 claims description 3
- 229920006395 saturated elastomer Polymers 0.000 claims description 3
- 238000012625 in-situ measurement Methods 0.000 abstract description 4
- KRTSDMXIXPKRQR-AATRIKPKSA-N monocrotophos Chemical compound CNC(=O)\C=C(/C)OP(=O)(OC)OC KRTSDMXIXPKRQR-AATRIKPKSA-N 0.000 abstract description 2
- 239000000523 sample Substances 0.000 description 10
- 239000000463 material Substances 0.000 description 4
- 239000011247 coating layer Substances 0.000 description 3
- 239000011435 rock Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007717 exclusion Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K17/00—Measuring quantity of heat
- G01K17/06—Measuring quantity of heat conveyed by flowing media, e.g. in heating systems e.g. the quantity of heat in a transporting medium, delivered to or consumed in an expenditure device
- G01K17/08—Measuring quantity of heat conveyed by flowing media, e.g. in heating systems e.g. the quantity of heat in a transporting medium, delivered to or consumed in an expenditure device based upon measurement of temperature difference or of a temperature
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
- G01K1/14—Supports; Fastening devices; Arrangements for mounting thermometers in particular locations
- G01K1/146—Supports; Fastening devices; Arrangements for mounting thermometers in particular locations arrangements for moving thermometers to or from a measuring position
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Measuring Temperature Or Quantity Of Heat (AREA)
Abstract
OF THE DISCLOSURE
The present disclosure provides a coverage type in-situ detection device and method of a
seafloor heat flow. The detection device includes: a blanket type cover layer, a top temperature
sensor, a bottom temperature sensor, and a tilt sensor, where the blanket type cover layer is disposed
at a seafloor; the bottom temperature sensor is disposed in a center of a bottom of the blanket type
cover layer, the bottom of the blanket type cover layer is a contact surface between the blanket type
cover layer and a surface of the seafloor, and the bottom temperature sensor is configured to obtain
a temperature of the bottom of the blanket type cover layer; the top temperature sensor is disposed
in a center of a top of the blanket type cover layer, the top of the blanket type cover layer is a
contact surface between the blanket type cover layer and seawater, and the top temperature sensor is
configured to obtain a temperature of the top of the blanket type cover layer; and the tilt sensor is
disposed on the top of the blanket type cover layer, and is configured to correct a thickness of the
blanket type cover layer. Through a coverage type working principle, in-situ measurement of a heat
flow at a hard seafloor such as a bedrock seafloor can be implemented.
1/1
3
FIG.1
Throw and deploy a coverage type in-situ detection device of a 100
seafloor heat flow to a seafloor, and use a buoyancy ball to make
the detection device forn a falling posture with a center of
buoyancy upward and a center of gravity downward
A top temperature sensor obtains a temperature of a top of a 200
blanket type cover layer, and a bottom temperature sensor obtains
a temperature of a bottom of the blanket type cover layer
300
Calculate a density of a heat flow passing through the
blanket type cover layer
500
|Recover the detection devi ce
FIG. 2
Description
1/1
3
FIG.1
Throw and deploy a coverage type in-situ detection device of a 100 seafloor heat flow to a seafloor, and use a buoyancy ball to make the detection device forn a falling posture with a center of buoyancy upward and a center of gravity downward
A top temperature sensor obtains a temperature of a top of a 200 blanket type cover layer, and a bottom temperature sensor obtains a temperature of a bottom of the blanket type cover layer
300
Calculate a density of a heat flow passing through the
blanket type cover layer
500 |Recover the detection devi ce
FIG. 2
[01] The present disclosure relates to the field of seafloor detection, and in particular, to a coverage type in-situ detection device and method of a seafloor heat flow.
[02] Currently, detection of a seafloor heat flow is generally conducted by inserting a seafloor heat flow probe, and an Ewing-type heat flow probe and a Lister-type heat flow probe are mainly used. The Ewing-type heat flow probe cannot complete in-situ measurement of a thermal conductivity, while the Lister-type heat flow probe can implement in-situ measurement of a heat flow. Specifically, the seafloor heat flow is measured by inserting the probe into a sediment. However, in this case, a heat flow at a rock seafloor cannot be measured by inserting the probe.
[03] In practical applications, the probe cannot be inserted into a bedrock seafloor. Therefore, a heat flow at a hard seafloor such as a rock seafloor cannot be measured by using the heat flow probe. As a result, it is still hard to insert the probe into the hard seafloor such as the rock seafloor and obtain heat flow data.
[04] Preferred embodiments of the present invention seek to provide a coverage type in-situ detection device and method of a seafloor heat flow, which can obtain heat flow data from a hard seafloor.
[05] According to an aspect of the present invention, there is provided:
[06] A coverage type in-situ detection device of a seafloor heat flow is provided, where the detection device includes:
[07] a blanket type cover layer, a top temperature sensor, a bottom temperature sensor, and a tilt sensor, where
[08] the blanket type cover layer is disposed at a seafloor, and is configured to isolate a surface of the seafloor from seawater;
[09] the bottom temperature sensor is disposed in a center of a bottom of the blanket type cover layer, the bottom of the blanket type cover layer is a contact surface between the blanket type cover layer and the surface of the seafloor, and the bottom temperature sensor is configured to obtain a temperature of the bottom of the blanket type cover layer;
[10] the top temperature sensor is disposed in a center of a top of the blanket type cover layer, the top of the blanket type cover layer is a contact surface between the blanket type cover layer and the seawater, and the top temperature sensor is configured to obtain a temperature of the top of the blanket type cover layer; and
[11] the tilt sensor is disposed on the top of the blanket type cover layer, and is configured to correct a thickness of the blanket type cover layer.
[12] Optionally, the blanket type cover layer is made of a water saturated polymer foam.
[13] Optionally, the blanket type cover layer is round or square.
[14] Optionally, a rubber coupling ring is disposed around the blanket type cover layer, the rubber coupling ring includes a hollow rubber tire bead, the rubber bead is filled with liquid, and a relative density of the liquid is greater than a relative density of the seawater.
[15] Optionally, the rubber coupling ring is connected to a connection buckle of an outer protective layer of the blanket type cover layer through a connection belt.
[16] Optionally, a side skirt is disposed around the rubber coupling ring, and the side skirt is capable of covering the seafloor around the blanket type cover layer.
[17] A coverage type in-situ detection method of a seafloor heat flow is provided. The detection method is applicable to the foregoing coverage type in-situ detection device of a seafloor heat flow and the method includes:
[18] throwing and deploying the coverage type in-situ detection device of a seafloor heat flow to a seafloor, and using a buoyancy ball to make the detection device form a falling posture with a center of buoyancy upward and a center of gravity downward, to ensure a working posture of the detection device at the seafloor;
[19] obtaining, by the top temperature sensor, a temperature T of the top of the blanket type cover layer, and obtaining, by the bottom temperature sensor, a temperature T2 of the bottom of the blanket type cover layer;
[20] measuring a thickness AZ and a thermal conductivity coefficient k of the blanket type cover layer;
[21] calculating a density AZ of a heat flow passing through the blanket type cover layer; and
[22] recovering the detection device.
[23] Optionally, the recovering the detection device specifically includes regular recovery and recovery through response to an acoustic signal.
[24] The regular recovery specifically means that a counterweight is fused within a set time, the detection device discards the counterweight after the counterweight is fused, and the detection device with buoyancy greater than gravity floats to a water surface under the action of the buoyancy ball.
[25] The recovery through response to an acoustic signal specifically means that an acoustic recovery signal is transmitted through the water surface, after receiving the acoustic recovery signal, the detection device discards the counterweight after the counterweight is fused, and the detection device with the buoyancy greater than the gravity floats to the water surface under the action of the buoyancy ball.
[26] According to specific embodiments provided in the present disclosure, the present disclosure has the following technical effect: The present disclosure discloses a coverage type in-situ detection device and method of a seafloor heat flow. The detection device includes: a blanket type cover layer, a top temperature sensor, a bottom temperature sensor, and a tilt sensor, where the blanket type cover layer is disposed at a seafloor, and is configured to isolate a surface of the seafloor from seawater; the bottom temperature sensor is disposed in a center of a bottom of the blanket type cover layer, the bottom of the blanket type cover layer is a contact surface between the blanket type cover layer and the surface of the seafloor, and the bottom temperature sensor is configured to obtain a temperature of the bottom of the blanket type cover layer; the top temperature sensor is disposed in a center of a top of the blanket type cover layer, the top of the blanket type cover layer is a contact surface between the blanket type cover layer and seawater, and the top temperature sensor is configured to obtain a temperature of the top of the blanket type cover layer; and the tilt sensor is disposed on the top of the blanket type cover layer, and is configured to correct a thickness of the blanket type cover layer. Through a coverage type working principle, in-situ measurement of a heat flow at a hard seafloor such as a bedrock seafloor can be implemented.
[27] A convenient deployment is implemented by using a drop-in deployment, thereby reducing the working time and intensity. The thickness can be accurately measured, a thickness for a seafloor slope can be corrected by using the tilt sensor, and the thermal conductivity coefficient of the blanket type cover layer can be accurately measured. The method has a low cost, and can implement wide-range heat flow detection through a wide-range deployment.
[28] To describe the technical solutions in embodiments of the present disclosure or in the related art more clearly, the following briefly describes the accompanying drawings required for describing the embodiments. Apparently, the accompanying drawings in the following description show merely some embodiments of the present disclosure, and a person of ordinary skill in the art may still derive other accompanying drawings from these accompanying drawings without creative efforts.
[29] FIG. 1 is a structural diagram of a coverage type in-situ detection device of a seafloor heat flow according to the present disclosure.
[30] FIG. 2 is a flowchart of a coverage type in-situ detection method of a seafloor heat flow according to the present disclosure.
[31] The following clearly and completely describes the technical solutions in embodiments of the present disclosure with reference to the accompanying drawings in the embodiments of the present disclosure. Apparently, the described embodiments are merely some of the embodiments of the present disclosure rather than all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present disclosure without creative efforts shall fall within the protection scope of the present disclosure.
[32] An objective of the present disclosure is to provide a coverage type in-situ detection device and method of a seafloor heat flow, which can obtain heat flow data from a hard seafloor.
[33] To make the foregoing objectives, features, and advantages of the present disclosure clearer and more comprehensible, the present disclosure is further described in detail below with reference to the accompanying drawings and specific implementations.
[34] As shown in FIG. 1, a coverage type in-situ detection device of a seafloor heat flow is provided, where the detection device includes:
[35] a blanket type cover layer 1, a top temperature sensor 2, a bottom temperature sensor 3, and a tilt sensor, where
[36] the blanket type cover layer 1 is disposed at a seafloor 4, and is configured to isolate a surface of the seafloor 4 from seawater;
[37] the bottom temperature sensor 3 is disposed in a center of a bottom of the blanket type cover layer 1, the bottom of the blanket type cover layer 1 is a contact surface between the blanket type cover layer 1 and the surface of the seafloor 4, and the bottom temperature sensor 3 is configured to obtain a temperature of the bottom of the blanket type cover layer;
[38] the top temperature sensor 2 is disposed in a center of a top of the blanket type cover layer 1, the top of the blanket type cover layer 1 is a contact surface between the blanket type cover layer 1 and the seawater, and the top temperature sensor 2 is configured to obtain a temperature of the top of the blanket type cover layer 1; and
[39] the tilt sensor is disposed on the top of the blanket type cover layer 1, and is configured to correct a thickness of the blanket type cover layer 1. The tilt sensor is configured to measure an inclination angle a of the blanket type cover layer 1, and correct the thickness of the blanket type cover layer 1 according to the inclination angle a of the blanket type cover layer 1.
[40] The blanket type cover layer 1 is made of a water saturated polymer foam, and is specifically made of a foamed flexible material or fabric material. The blanket type cover layer 1 is wrapped with a fiber coating layer for improving the strength and wear resistance of the blanket type cover layer 1.
[41] The blanket type cover layer 1 is round or square.
[42] A rubber coupling ring is disposed around the blanket type cover layer 1, the rubber coupling ring includes a hollow rubber tire bead, the rubber bead is filled with liquid, and a relative density of the liquid is greater than a relative density of the seawater.
[43] The rubber coupling ring is connected to a connection buckle of an outer protective layer of the blanket type cover layer through a connection belt. The rubber coupling ring improves a degree of coupling between the blanket type cover layer 1 and the seafloor 4, blocks the horizontal flow of the seawater, and reduces a horizontal heat loss.
[44] A side skirt is disposed around the rubber coupling ring, and the side skirt is capable of covering the seafloor around the blanket type cover layer, has a heat preservation function, can reduce a lateral temperature difference of the blanket type cover layer 1, and reduces a lateral heat loss.
[45] As shown in FIG. 2, a coverage type in-situ detection method of a seafloor heat flow is provided. The detection method is applicable to the foregoing coverage type in-situ detection device of a seafloor heat flow and the method includes the following steps:
[46] Step 100. Throw and deploy a coverage type in-situ detection device of a seafloor heat flow to a seafloor, and use a buoyancy ball to make the detection device form a falling posture with a center of buoyancy upward and a center of gravity downward, to ensure a working posture of the detection device at the seafloor.
[47] Step 200. A top temperature sensor 2 obtains a temperature T of a top of a blanket type cover layer 1, and a bottom temperature sensor 3 obtains a temperature T2 of a bottom of the blanket type cover layer 1.
[48] Step 300. Measure a thickness AZ and a thermal conductivity coefficient k of the blanket type cover layer 1.
Q = -k II-T
[49] Step 400. Calculate a density AZ of a heat flow passing through the blanket type cover layer 1.
[50] Step 500. Recover the detection device.
[51] In step 500, the recovering the detection device specifically includes regular recovery and recovery through response to an acoustic signal.
[52] The regular recovery specifically means that a counterweight is fused within a set time, the detection device discards the counterweight after the counterweight is fused, and the detection device with buoyancy greater than gravity floats to a water surface under the action of the buoyancy ball.
[53] The recovery through response to an acoustic signal specifically means that an acoustic recovery signal is transmitted through the water surface, after receiving the acoustic recovery signal, the detection device discards the counterweight after the counterweight is fused, and the detection device with the buoyancy greater than the gravity floats to the water surface under the action of the buoyancy ball.
[54] The buoyancy ball made of a solid buoyancy material is connected to the connection buckle outside an outer coating layer of the blanket type cover layer 1 by using four flexible load-bearing cables, and the outer coating layer of the blanket type cover layer 1 is made of a water-blocking material with a low thermal conductivity coefficient.
[55] The embodiments in this specification are described in a progressive manner. Description of each of the embodiments focuses on differences from other embodiments, and reference may be made to each other for the same or similar parts among the embodiments. A device disclosed in the embodiments corresponds to the method disclosed in the embodiments, and therefore are described briefly. For related parts, reference may be made to partial descriptions in the method for an associated part.
[56] Although the principle and implementations of the present disclosure are described by using specific examples in this specification, the descriptions of the foregoing embodiments are merely intended to help understand the method and the core idea of the method of the present disclosure. In addition, a person of ordinary skill in the art may make modifications to the specific implementations and application range according to the idea of the present disclosure. In conclusion, the content of this specification shall not be construed as a limitation to the present disclosure.
[57] Throughout this specification and the claims which follow, unless the context requires otherwise, the word "comprise", and variations such as "comprises" and "comprising", will be understood to imply the inclusion of a stated integer or step or group of integers or steps but not the exclusion of any other integer or step or group of integers or steps.
[58] The reference in this specification to any prior publication (or information derived from it), or to any matter which is known, is not, and should not be taken as an acknowledgment or admission or any form of suggestion that that prior publication (or information derived from it) or known matter forms part of the common general knowledge in the field of endeavour to which this specification relates.
Claims (5)
1. A coverage type in-situ detection device of a seafloor heat flow, wherein the detection device comprises: a blanket type cover layer, a top temperature sensor, a bottom temperature sensor, and a tilt sensor, wherein the blanket type cover layer is disposed at a seafloor, and is configured to isolate a surface of the seafloor from seawater; the bottom temperature sensor is disposed in a center of a bottom of the blanket type cover layer, the bottom of the blanket type cover layer is a contact surface between the blanket type cover layer and the surface of the seafloor, and the bottom temperature sensor is configured to obtain a temperature of the bottom of the blanket type cover layer; the top temperature sensor is disposed in a center of a top of the blanket type cover layer, the top of the blanket type cover layer is a contact surface between the blanket type cover layer and the seawater, and the top temperature sensor is configured to obtain a temperature of the top of the blanket type cover layer; and the tilt sensor is disposed on the top of the blanket type cover layer, and is configured to correct a thickness of the blanket type cover layer.
2. The coverage type in-situ detection device of a seafloor heat flow according to claim 1, wherein the blanket type cover layer is made of a water saturated polymer foam.
3. The coverage type in-situ detection device of a seafloor heat flow according to claim 1, wherein the blanket type cover layer is round or square.
4. The coverage type in-situ detection device of a seafloor heat flow according to claim 1, wherein a rubber coupling ring is disposed around the blanket type cover layer, the rubber coupling ring comprises a hollow rubber tire bead, the rubber bead is filled with liquid, and a relative density of the liquid is greater than a relative density of the seawater; wherein the rubber coupling ring is connected to a connection buckle of an outer protective layer of the blanket type cover layer through a connection belt; or, wherein a side skirt is disposed around the rubber coupling ring, and the side skirt is capable of covering the seafloor around the blanket type cover layer.
5. A coverage type in-situ detection method of a seafloor heat flow, wherein the detection method is applicable to the coverage type in-situ detection device of a seafloor heat flow according to any one of claims 1 to 4 and the method comprises: throwing and deploying the coverage type in-situ detection device of a seafloor heat flow to a seafloor, and using a buoyancy ball to make the detection device form a falling posture with a center of buoyancy upward and a center of gravity downward, to ensure a working posture of the detection device at the seafloor; obtaining, by the top temperature sensor, a temperature T of the top of the blanket type cover layer; obtaining, by the bottom temperature sensor, a temperature T2 of the bottom of the blanket type cover layer; measuring a thickness AZ and a thermal conductivity coefficient k of the blanket type cover layer;
Q = -k 1 2 calculating a density AZ of a heat flow passing through the blanket type cover layer; and recovering the detection device; wherein the recovering the detection device specifically comprises regular recovery and recovery through response to an acoustic signal; the regular recovery specifically means that a counterweight is fused within a set time, the detection device discards the counterweight after the counterweight is fused, and the detection device with buoyancy greater than gravity floats to a water surface under the action of the buoyancy ball; and the recovery through response to an acoustic signal specifically means that an acoustic recovery signal is transmitted through the water surface, after receiving the acoustic recovery signal, the detection device discards the counterweight after the counterweight is fused, and the detection device with the buoyancy greater than the gravity floats to the water surface under the action of the buoyancy ball.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU2021105600A AU2021105600A4 (en) | 2021-08-16 | 2021-08-16 | Coverage type in-situ detection device and method of seafloor heat flow |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU2021105600A AU2021105600A4 (en) | 2021-08-16 | 2021-08-16 | Coverage type in-situ detection device and method of seafloor heat flow |
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| Publication Number | Publication Date |
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| AU2021105600A4 true AU2021105600A4 (en) | 2021-10-14 |
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| AU2021105600A Ceased AU2021105600A4 (en) | 2021-08-16 | 2021-08-16 | Coverage type in-situ detection device and method of seafloor heat flow |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109187268A (en) * | 2018-10-12 | 2019-01-11 | 国家海洋技术中心 | A kind of cover type heat flow of ocean floor in-situ detector and method |
-
2021
- 2021-08-16 AU AU2021105600A patent/AU2021105600A4/en not_active Ceased
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109187268A (en) * | 2018-10-12 | 2019-01-11 | 国家海洋技术中心 | A kind of cover type heat flow of ocean floor in-situ detector and method |
| CN109187268B (en) * | 2018-10-12 | 2024-03-08 | 国家海洋技术中心 | Covered type submarine heat flow in-situ detection device and method |
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