CN115236758A - External temperature control device of underwater/water surface dual-purpose strapdown gravimeter - Google Patents
External temperature control device of underwater/water surface dual-purpose strapdown gravimeter Download PDFInfo
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- CN115236758A CN115236758A CN202210801404.5A CN202210801404A CN115236758A CN 115236758 A CN115236758 A CN 115236758A CN 202210801404 A CN202210801404 A CN 202210801404A CN 115236758 A CN115236758 A CN 115236758A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 80
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 15
- 239000000741 silica gel Substances 0.000 claims description 15
- 229910002027 silica gel Inorganic materials 0.000 claims description 15
- 230000017525 heat dissipation Effects 0.000 claims description 6
- 230000007613 environmental effect Effects 0.000 abstract description 3
- 238000009434 installation Methods 0.000 abstract description 3
- 238000002360 preparation method Methods 0.000 abstract description 3
- 238000005259 measurement Methods 0.000 description 12
- 230000005484 gravity Effects 0.000 description 11
- 238000001816 cooling Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 6
- 229920001296 polysiloxane Polymers 0.000 description 6
- 230000008859 change Effects 0.000 description 5
- 238000013461 design Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000012546 transfer Methods 0.000 description 4
- 238000011161 development Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000003068 static effect Effects 0.000 description 3
- 230000009172 bursting Effects 0.000 description 2
- 239000000110 cooling liquid Substances 0.000 description 2
- 239000000498 cooling water Substances 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 238000005057 refrigeration Methods 0.000 description 2
- 239000013535 sea water Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 230000003044 adaptive effect Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007123 defense Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V7/00—Measuring gravitational fields or waves; Gravimetric prospecting or detecting
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D31/00—Other cooling or freezing apparatus
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V7/00—Measuring gravitational fields or waves; Gravimetric prospecting or detecting
- G01V7/02—Details
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- General Life Sciences & Earth Sciences (AREA)
- General Physics & Mathematics (AREA)
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- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
Abstract
The invention discloses an external temperature control device of an underwater/water surface dual-purpose strapdown gravimeter, which comprises an underwater gravimeter, a circulating water cooler and a hose; the two ends of the hose are detachably connected with a water inlet and a water outlet of the circulating water cooler respectively, and the hose is wound on the side and the top of the underwater gravimeter. The invention is applied to the field of exploration equipment, is improved on the basis of the existing underwater gravimeter, has the advantages of simple installation, lower cost, effective temperature control, lighter weight and the like, can enable the strapdown gravimeter to adapt to underwater/water surface working environments, has the capability of working under the conditions of deep sea high pressure and low temperature environment, direct sunlight irradiation of deck and high temperature, and can disassemble and assemble external equipment and hoses according to environmental changes and actual requirements, thereby reducing the preparation time before the system runs.
Description
Technical Field
The invention relates to the technical field of exploration equipment, in particular to an external temperature control device of an underwater/water surface dual-purpose strapdown gravimeter.
Background
The gravity field describes one of the basic physical characteristics of the earth, and the accurate measurement of the earth gravity field has very important significance for deep research of earth science, promotion of national economic development and support of national defense science and technology development. The underwater gravity measurement is divided into static and dynamic measurement, the static underwater gravity measurement is similar to the ground static gravity measurement, and a gravimeter is placed on the sea bottom through a submarine vehicle for gravity measurement. The dynamic underwater gravity measurement is similar to aviation gravity measurement, a gravimeter is installed on a submarine vehicle, and large-area gravity measurement is realized by the cruise of the submarine vehicle close to the seabed.
The core work part of the underwater gravimeter is completed by an IMU module, and the measurement precision of the IMU module is related to the working environment, particularly the working temperature, except the design scheme, the technical process, the manufacturing material and the like of the IMU module. The change of the working environment temperature can cause the thermal expansion and contraction of the components and the change of the physical parameters of the materials, and the change is finally mainly reflected on the scale factor and the zero deviation, so that the change becomes an important aspect for restricting the performance of the components in the current development process.
The working environment of the gravimeter is two kilometers under water, the temperature of seawater is about 3 ℃, and the gravimeter usually needs to work at a higher stable temperature to carry out normal measurement, so the external temperature control of the traditional gravimeter is a pure heating mode. When debugging and testing on laboratory or launching foredeck, outer radiator radiating effect is poor, the dismouting is complicated, leads to the inside temperature of system to continue to rise, and the inside temperature of sensor is unstable, and the system precision reduces. In the past years of experiments, in order to ensure that the internal instruments of the gravimeter operate within the adaptive temperature range to ensure the system accuracy, a low-power fan and a semiconductor refrigerator (Thermo Electric Cooler) are loaded on the housing of the machine body to achieve the cooling effect. In actual operation, this solution does not result in a good cooling effect. When the device works on a deck, the temperature of the gravimeter is basically consistent with that of the device without the addition of an external radiator, so that better heat dissipation is required to ensure smooth experiment.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides the external temperature control device of the underwater/water surface dual-purpose strapdown gravimeter, which is improved on the basis of the existing underwater gravimeter, has the advantages of simplicity in installation, lower cost, effective temperature control, lighter weight and the like, and provides proper working temperature for high-precision measuring elements when the underwater gravimeter is on the shore and at a floating stage so as to ensure the accurate calculation of gravity.
In order to realize the purpose, the invention provides an external temperature control device of an underwater/water surface dual-purpose strapdown gravimeter, which comprises an underwater gravimeter, a circulating water cooler and a hose;
the two ends of the hose are detachably connected with the water inlet and the water outlet of the circulating water cooler respectively, and the hose is wound on the side and the top of the underwater gravimeter.
In one embodiment, the water valve further comprises two linked multi-section hoses and two water valves;
one end of one of the linked multi-section hoses is detachably connected with one end of the hose, and the other end of the hose is connected with a water inlet of the circulating water cooler through one of the water valves;
and one end of the other connecting multi-section hose is detachably connected with the other end of the hose, and the other end of the connecting multi-section hose is connected with a water outlet of the circulating water cooler through the other water valve.
In one embodiment, the hoses are arranged in a shape like a Chinese character 'hui' on the top of the underwater gravimeter, so that the contact area between the hoses and the underwater gravimeter is increased, and the heat dissipation efficiency is improved.
In one embodiment, the side part of the underwater gravimeter is provided with fixing rods at intervals along the axial direction;
two ends of the fixed rod are respectively connected with flange edges at the top end and the lower end of the underwater gravimeter, and a space is formed between the fixed rod and the side wall of the underwater gravimeter;
on the side of the underwater gravimeter, the hose is located within the gap and is wrapped around the underwater gravimeter.
In one embodiment, the hose is a silicone hose.
The external temperature control device of the underwater/water surface dual-purpose strapdown gravimeter can enable the strapdown gravimeter to adapt to two working environments of underwater/water surface, has the capability of working under the conditions of high pressure and low temperature in deep sea, direct sunlight irradiation on deck and high temperature, and can be disassembled and assembled according to environmental changes and actual requirements, so that the preparation time before system operation can be shortened.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is an isometric view of a temperature control device in an embodiment of the invention;
FIG. 2 is a front view of a temperature control device in an embodiment of the present invention;
FIG. 3 is a top view of a temperature control device in an embodiment of the invention.
Reference numerals: the device comprises an underwater gravimeter 1, a circulating water cooler 2, a silica gel hose 3, a plurality of linked hoses 4, a water valve 5 and a fixed rod 6.
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that all the directional indicators (such as upper, lower, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the motion situation, and the like in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.
In addition, descriptions such as "first", "second", etc. in the present invention are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "connected," "secured," and the like are to be construed broadly, and for example, "secured" may be a fixed connection, a removable connection, or an integral part; the connection can be mechanical connection, electrical connection, physical connection or wireless communication connection; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In addition, the technical solutions in the embodiments of the present invention may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination of technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
Fig. 1-3 show an external temperature control device of an underwater/water surface dual-purpose strapdown gravimeter disclosed in this embodiment, which mainly includes an underwater gravimeter 1, a circulating water chiller 2 and a hose. Wherein, the hose adopts transparent silica gel hose 3, has light cheap characteristics. The two ends of the silica gel hose 3 are detachably connected with the water inlet and the water outlet of the circulating water cooler 2 respectively, and the silica gel hose 3 is wound on the side and the top of the underwater gravimeter 1. When debugging and testing on laboratory or lower water front deck, can make 3 inner loop cooling liquids of silica gel hose through circulation cold water machine 2 to dispel the heat to gravimeter 1 under water, provide suitable operating temperature for gravimeter 1 under water when the bank, solve with the accuracy of guaranteeing gravity. Considering the working environment during sailing, the specific heat capacity of water is large and the water is easy to obtain on the ship, so that pure water can be selected as the cooling liquid. This temperature control device can make the strapdown formula gravimeter adapt to two kinds of operational environment under water/the surface of water, has the ability of working under the condition of high pressure in the deep sea, low temperature environment and deck sunshine are penetrated directly, high temperature, and its peripheral hardware and silica gel hose 3 can be along with environmental change and actual demand dismouting, can reduce the system preparation time before the operation.
In this embodiment, the water-cooling method is adopted to cool the underwater gravimeter 1, and according to the water-cooling formula, the method includes:
Q＝K·S·ΔT
wherein K is a heat transfer coefficient, and the size of K depends on the characteristics of the cooling liquid, the operating conditions and the heat exchange structure in the heat transfer process; s is the area of the heat transfer surface; q is the total heat dissipated.
In the present embodiment, the circulation water cooler 2 is used, on one hand, the flowing liquid can be pressurized to increase the flow velocity v, and since K ^ v, the heat transfer coefficient K can be increased; on the other hand, the two-object temperature difference Δ T in Q = K · S · Δ T can be increased, and the heat radiation amount Q can be increased. Due to T OUT -T IN ＝Q/(C m M) in the case of an underwater gravimeter 1 housing properties (mass m, specific heat capacity C) m ) Under the unchanged condition, the temperature after cooling is lower due to the increase of Q, and the cooling efficiency of the whole system is higher.
It should be noted that, in the case of the above-mentioned refrigeration scheme, the silicone hoses 3 may be squeezed against each other due to the long length of the silicone hoses 3 and during the installation of the gravimeter. In view of the above, the circulation water cooler 2 cannot provide an excessive water pressure, which may otherwise cause the bursting of the silicone hose 3. In this embodiment, the flow rate of the cooling water is preferably controlled to be 25L/min, which not only achieves a better refrigeration effect, but also avoids the bursting of the silicone hose 3.
It should be noted that when working on the deck, the thermal radiation generated by the sunlight has a great influence on the heating of the instrument, and Q cannot be calculated by the internal heating element of the underwater gravimeter 1 alone. According to the above description, when the coolant is determined that the flow rate cannot be too high, a large Δ T is ensured, which is a key for improving the heat dissipation efficiency. In the embodiment, an HS7200-HA water cooler is selected as the circulating water cooler 2, and the lowest output temperature is 10 ℃. 10 c was set to its output temperature without considering the compressor power consumption. After the above design is carried out, the normal operation of the compressor is ensured, namely: when the output water temperature is set to be 10 ℃, the water circulation speed is 25L/min, the temperature of the cooling water is controlled to be 9.7-11.2 ℃, and meanwhile, the temperature of the shell of the underwater gravimeter 1 is kept below 15 ℃.
As a preferred embodiment, the temperature control device in this embodiment further includes two linking multi-segment hoses 4 and two water valves 5. One end of one of the multi-section connecting hose 4 is detachably connected with one end of the silica gel hose 3, and the other end of the multi-section connecting hose is connected with a water inlet of the circulating water cooler 2 through one of the water valves 5. One end of the other connecting multi-section hose 4 is detachably connected with the other end of the silica gel hose 3, and the other end of the connecting multi-section hose is connected with a water outlet of the circulating water cooler 2 through another water valve 5. Because work will lead to the structural strength weakening of silica gel hose 3 when going ashore in long-time high pressure sea water environment, circulation cold water machine 2 output water pressure upper limit receives bigger restriction. The water valve 5 enhances the strength of the airtight and the joint, and simultaneously generates a certain buffer effect on the high-pressure water flow of the circulating water cooler 2, thereby protecting the silica gel hose 3 to a certain extent.
As the preferred embodiment, at the top of gravimeter 1 under water, silica gel hose 3 is "the font of returning" and arranges to increased the area of contact of silica gel hose 3 with gravimeter 1 under water, promoted the radiating efficiency.
As a preferred embodiment, the lateral part of the underwater gravimeter 1 is provided with fixing rods 6 at intervals along the axial direction, two ends of the fixing rods 6 are respectively connected with flange edges at the top end and the lower end of the underwater gravimeter 1, and an interval is provided between the fixing rods 6 and the lateral wall of the underwater gravimeter 1. At the side of the underwater gravimeter 1, the silicone hose 3 is located in the gap and wound around the underwater gravimeter 1.
Compared with the traditional temperature control design, the temperature control device disclosed by the invention firstly gets rid of the problem of dismounting the heat dissipation device in the original design scheme. Under the condition of ensuring the length, the silica gel hose 3 arranged outside can be launched with the equipment without disassembling the whole gravimeter shell for adjustment; secondly, the working temperature of the gravimeter is controllable in a second stage by adjusting the water temperature. Due to the fact that different heat dissipation effects can be achieved by adjusting the temperature and the flow rate of liquid flowing through the external silica gel hose 3, the underwater gravimeter 1 can keep the optimal temperature for normal work in more working environments, and the measurement accuracy of the underwater gravimeter 1 in a complete working period is improved.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (5)
1. An external temperature control device of an underwater/water surface dual-purpose strapdown gravimeter is characterized by comprising an underwater gravimeter, a circulating water cooler and a hose;
the two ends of the hose are detachably connected with a water inlet and a water outlet of the circulating water cooler respectively, and the hose is wound on the side and the top of the underwater gravimeter.
2. The external temperature control device of the underwater/water surface dual-purpose strapdown gravitometer according to claim 1, further comprising two linked multi-segment hoses and water valves;
one end of one of the linked multi-section hoses is detachably connected with one end of the hose, and the other end of the hose is connected with a water inlet of the circulating water cooler through one of the water valves;
and one end of the other connecting multi-section hose is detachably connected with the other end of the hose, and the other end of the connecting multi-section hose is connected with a water outlet of the circulating water cooler through the other water valve.
3. The external temperature control device of the underwater/water surface dual-purpose strapdown gravimeter according to claim 1 or 2, wherein the hose is arranged in a shape like a Chinese character 'hui' at the top of the underwater gravimeter, so that the contact area between the hose and the underwater gravimeter is increased, and the heat dissipation efficiency is improved.
4. The external temperature control device of the underwater/water surface dual-purpose strapdown gravimeter according to claim 1 or 2, wherein fixing rods are axially arranged at intervals on the side of the underwater gravimeter;
two ends of the fixed rod are respectively connected with flange edges at the top end and the lower end of the underwater gravimeter, and a space is formed between the fixed rod and the side wall of the underwater gravimeter;
on the side of the underwater gravimeter, the hose is located within the gap and is wrapped around the underwater gravimeter.
5. The external temperature control device of the underwater/water surface dual-purpose strapdown gravimeter according to claim 1 or 2, wherein the hose is a silica gel hose.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210801404.5A CN115236758A (en) | 2022-07-08 | 2022-07-08 | External temperature control device of underwater/water surface dual-purpose strapdown gravimeter |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210801404.5A CN115236758A (en) | 2022-07-08 | 2022-07-08 | External temperature control device of underwater/water surface dual-purpose strapdown gravimeter |
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| CN115236758A true CN115236758A (en) | 2022-10-25 |
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| CN202210801404.5A Pending CN115236758A (en) | 2022-07-08 | 2022-07-08 | External temperature control device of underwater/water surface dual-purpose strapdown gravimeter |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116094236A (en) * | 2023-04-10 | 2023-05-09 | 宁波东力传动设备有限公司 | Water-cooling motor with one-way unidirectional circulating water-cooling motor shell |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103216985A (en) * | 2012-01-19 | 2013-07-24 | 中国人民解放军装甲兵工程学院 | Industrial water cooling device |
| CN206713227U (en) * | 2016-12-15 | 2017-12-05 | 东莞市银狐网络有限公司 | A kind of computer room rack water cooling plant |
| CN111916865A (en) * | 2020-07-23 | 2020-11-10 | 柳州市智甲金属科技有限公司 | Temperature control system and control method for battery pack |
| CN114489183A (en) * | 2022-02-14 | 2022-05-13 | 深圳市酷凌时代科技有限公司 | Temperature control system of marine gravimeter |
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2022
- 2022-07-08 CN CN202210801404.5A patent/CN115236758A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103216985A (en) * | 2012-01-19 | 2013-07-24 | 中国人民解放军装甲兵工程学院 | Industrial water cooling device |
| CN206713227U (en) * | 2016-12-15 | 2017-12-05 | 东莞市银狐网络有限公司 | A kind of computer room rack water cooling plant |
| CN111916865A (en) * | 2020-07-23 | 2020-11-10 | 柳州市智甲金属科技有限公司 | Temperature control system and control method for battery pack |
| CN114489183A (en) * | 2022-02-14 | 2022-05-13 | 深圳市酷凌时代科技有限公司 | Temperature control system of marine gravimeter |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116094236A (en) * | 2023-04-10 | 2023-05-09 | 宁波东力传动设备有限公司 | Water-cooling motor with one-way unidirectional circulating water-cooling motor shell |
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