CN202853191U - Refrigeration device for adjusting temperature of working environment of logging instrument - Google Patents
Refrigeration device for adjusting temperature of working environment of logging instrument Download PDFInfo
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- CN202853191U CN202853191U CN 201220468410 CN201220468410U CN202853191U CN 202853191 U CN202853191 U CN 202853191U CN 201220468410 CN201220468410 CN 201220468410 CN 201220468410 U CN201220468410 U CN 201220468410U CN 202853191 U CN202853191 U CN 202853191U
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- temperature
- refrigerating plant
- logger
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Abstract
The utility model discloses a refrigeration device for adjusting temperature of working environment of a logging instrument. The refrigeration device comprises a temperature control circuit, an outer shell body and an inner shell body, wherein the outer shell body and the inner shell body are made of heat conduction materials. The inner shell body is arranged in a chamber encircled by the outer shell body. A chamber encircled by the inner shell body is used for placing the logging instrument. A single-way heat conduction layer composed of a semiconductor refrigeration piece, a heat conduction film and a heat insulating film is arranged between the inner shell body and the outer shell body. The heat conduction direction conducts from the inner shell body to the outer shell body. The temperature control circuit is connected with the semiconductor refrigeration piece. Power supply current of the semiconductor refrigeration piece is adjusted according to collected temperature of the chamber encircled by the inner shell body so as to change heat conduction quantity of the semiconductor refrigeration piece. Any kind of non-contact type precise logging instrument can be placed in the refrigeration device and work in a required operating temperature range, and therefore working safety of the logging instrument is guaranteed.
Description
Technical field
The utility model belongs to the detecting deep well technical field, specifically, relates to a kind of refrigerating plant of the environment temperature for regulating the work of detecting deep well instrument.
Background technology
Earthquake prospecting, oil and gas exploration, the therapeutic method to keep the adverse qi flowing downward survey and long-term geological mapping technical field, often need to carry out heavy duty service, physical parameter and the chemical parameters of down-hole detected immediately.And at present at special dimensions such as detecting deep wells, provide the instrument that is specifically designed to detecting deep well actually rare, and these down-hole detection instruments have strict requirement to operating temperature and operating pressure, and expensive, have greatly limited thus popularizing of logger.
The logger that why occurs on the market is very rare, traces it to its cause, mainly be summed up as following some: the one, because of the impact of earth geologic structure, in the earth's crust, whenever go deep into 100 meters, temperature just can rise 1-3 ℃.That is to say that well depth is in 7000m, bottom hole temperature (BHT) can rise 70 ℃-210 ℃.And present conventional detecting element and semiconductor chip, its operating temperature often is lower than 70 ℃, therefore can not satisfy the requirement in shaft bottom work, needs special high temperature resistant detecting element or the high high temperature semiconductors chip of price of employing to provide support.It two is, contains abundant underground water and other fluids in the earth's crust, when well depth reaches certain depth, can overflow a certain amount of moisture inevitably.When the ponding in shaft bottom deposited to certain capacity, the logger that extend in the ponding of down-hole then can bear a part of pressure more, and the working depth of logger is darker, and is also just higher to the requirement of the anti-pressure ability of instrument and sealing property.
Because the restriction of above condition of work causes the present deep-well parameter that can detect more single, the volume of checkout equipment is too huge and price is also quite expensive.But, often need to detect more physical parameter in the practical logging environment, such as acoustical parameter, magnetic force parameter etc.The structure of this type of detecting instrument is comparatively complicated, requirement to accuracy of detection is also higher, the optics that uses in the system and the service condition of semiconductor devices are relatively harsher, can't use in the environment of down-hole below 3000 meters with present semiconductor technology and logging technique.
Therefore, how efficiently and fast regulating the residing environment temperature of down-hole detection instrument, is the key subject that present detecting deep well technical field is being inquired into.
Summary of the invention
The purpose of this utility model is to provide a kind of refrigerating plant of the environment temperature for regulating logger work, to guarantee that logger can work in the shaft bottom, realizes the accurate detection to some down-hole physical parameter.
In order to solve the problems of the technologies described above, the utility model is achieved by the following technical solutions:
A kind of refrigerating plant of the environment temperature for regulating logger work comprises temperature control circuit and external shell and the inner shell made by Heat Conduction Material; Described inner shell is positioned at the chamber that external shell surrounds, the chamber that described inner shell surrounds is used for placing logger, be provided with the unidirectional thermosphere that is comprised of semiconductor chilling plate, heat conducting film and thermal isolation film between described inner shell and external shell, the heat conduction direction conducts to external shell by inner shell; Described temperature control circuit connects semiconductor chilling plate, the supply current of adjustment semiconductor chilling plate in the chamber that surrounds according to the inner shell that collects.
Further, in described temperature control circuit, comprise temperature sensor, processor and on-off circuit; Described temperature sensor places in the chamber that inner shell surrounds or is arranged on the outer wall of inner shell, detects temperature in the chamber that inner shell surrounds, and converts the signal of telecommunication to and export processor to; Described processor exports on-off circuit to according to the temperature threshold generation control signal of the signal of telecommunication that receives and setting, by the current supply circuit break-make of gauge tap connecting and disconnecting of the circuit with the control semiconductor chilling plate.
Preferably, described on-off circuit is solid-state relay, and its input control end connects processor, the control signal of receiving processor output, the output-controlled end of solid-state relay is connected between ac-dc switching power and the semiconductor chilling plate, the current supply circuit of conducting or cut-out semiconductor chilling plate.
Further, described ac-dc switching power stube cable, described cable passes the AC power on the external shell connecting well.
Preferably, described external shell is preferably designed to the steel metal shell of cylindrical or rugby shape, touches the borehole wall when avoiding lower well operations; The position that passes cable at described external shell is provided with sealing ring, and the chamber that external shell is surrounded is closed state, the inside that enters into refrigerating plant with the ponding of avoiding the shaft bottom or heat.
As the laying mode of described unidirectional thermosphere, preferably adopt following two kinds of designs:
The first is put described unidirectional thermosphere around the side wall ring winding of inner shell.
It two is, with described unidirectional thermosphere around sidewall, roof and the diapire of inner shell around setting, inner shell is wrapped in wherein.
Preferably, described temperature control circuit is preferably placed at described unidirectional thermosphere and centers in the zone that forms, and the heat that sends when utilizing semiconductor chilling plate that temperature control circuit is worked carries out cooling heat dissipation in the lump to be processed.
In order to improve the heat-sinking capability of refrigerating plant, satisfy the job requirement of logger under different well depths, described unidirectional thermosphere preferably adopt the multi-lager semiconductor cooling piece, at least one deck heat conducting film and at least one deck thermal isolation film form, and have at least the inwall of one deck thermal isolation film and external shell to fit, with the heat reverse conduction that prevents the down-hole hot environment inside to refrigerating plant.
Further, the number of plies n of described semiconductor chilling plate 〉=(T2-T1)/and dT, n rounds numerical value; Wherein, T1 is the maximum operating temperature of logger, and T2 is the downhole environment temperature, and dT is the maximum temperature difference of semiconductor chilling plate.
Compared with prior art, advantage of the present utility model and good effect are: refrigerating plant of the present utility model can any contactless accurate logger of splendid attire, and such logger can be operated in the desired operating temperature range of instrument, to guarantee the security of logger work.In addition, this refrigerating device structure is simple, and volume is little, with low cost, the machinery-free vibration of device own need not mechanical noise is compensated for accurate loggers such as high-precision acoustic sounding instrument or magnetic survey instrument, has virtually improved accuracy of detection and the reliability of such logger.
Description of drawings
Fig. 1 is the internal structure schematic diagram of a kind of embodiment of the refrigerating plant of the environment temperature of be used for regulating logger work that proposes of the utility model;
Fig. 2 is the horizontal section top view of Fig. 1;
Fig. 3 is the schematic block circuit diagram of a kind of embodiment of temperature control circuit;
Fig. 4 is the internal structure schematic diagram of another embodiment of the refrigerating plant of the environment temperature of be used for regulating logger work that proposes of the utility model;
Fig. 5 is the internal structure schematic diagram of the third embodiment of the refrigerating plant of the environment temperature of be used for regulating logger work that proposes of the utility model.
The specific embodiment
Below in conjunction with accompanying drawing the technical scheme among the utility model embodiment is clearly and completely described, obviously, described embodiment only is the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making all other embodiment that obtain under the creative work prerequisite, all belong to the scope of the utility model protection.
For the advantage that makes technical solutions of the utility model is clearer, below in conjunction with drawings and Examples the utility model is explained.
Embodiment one, referring to shown in Figure 1, the refrigerating plant of present embodiment mainly by external shell 1, inner shell 2, temperature control circuit and be arranged on external shell 1 and inner shell 2 between unidirectional thermosphere consist of.Wherein, inner shell 2 is arranged in the chamber that external shell 1 surrounds, and the chamber A that inner shell 2 surrounds is used for holding logger.For so that the heat in the chamber A can promptly outwards discharge, described external shell 1 and inner shell 2 all adopt Heat Conduction Material to make, and preferably adopt the good metal material of heat conductivility to make.Wherein, inner shell 2 can be selected any metal material preparation, when guaranteeing the good heat conductive performance, plays the effect of protection logger.For external shell 1, preferably adopt the antirust steel material of resistance to compression to make, when playing mechanical support, can better adapt to the abominable working environment of shaft bottom high pressure, high humidity.
Described unidirectional thermosphere preferably adopts semiconductor chilling plate 3, heat conducting film 4 and thermal isolation film 5 to be put together, and the heat conduction direction conducts to external shell 1 by inner shell 2, referring to the partial enlarged drawing among Fig. 1 and shown in Figure 2.In described unidirectional thermosphere, semiconductor chilling plate 3 plays the effect of heat pump, its cold junction is towards inner shell 2, the hot junction is towards external shell 1, after semiconductor chilling plate 3 energisings, absorb the heat that inner shell 2 distributes by cold junction, to reduce the temperature in the chamber A, the heat that absorbs by cold junction is conducted to the hot junction of semiconductor chilling plate 3, and then discharges to the external world by the external shell 1 of steel.
At present, conventional semiconductor chilling plate, the temperature difference at its two ends is generally at 30-65 ℃.Because the difference of well depth, can there be very large difference in the temperature in shaft bottom, in order to satisfy logger in the job requirement of different depth down-hole, need to be according in each deep-well that will survey, the downhole environment temperature T 2 that temperature is the highest and the maximum operating temperature T1 of logger determine the laying number of plies of semiconductor chilling plate 3.Specifically, can utilize formula n 〉=(T2-T1)/dT to calculate the number of plies of semiconductor chilling plate 3 required layings.Wherein, n is the number of plies of semiconductor chilling plate 3, rounds numerical value; DT is the maximum temperature difference of semiconductor chilling plate 3.
In described unidirectional thermosphere, heat conducting film 4 can be laid one deck or multilayer, plays the oppositely heat insulation effect of heat forward conduction.When heat conducting film 4 is provided with multilayer, preferably between adjacent two-layer semiconductor chilling plate 3, lay one deck heat conducting film 4, the hot junction heat of internal layer semiconductor chilling plate is conducted in time the cold junction of outer semiconductor chilling plate, to accelerate radiating rate.Same, described thermal isolation film 5 also can be laid one deck or multilayer, plays radiation heat insulation, prevents that external heat is radiated the effect of refrigerating plant inside.In order to improve effect of heat insulation, fit on the inwall of external shell 1 to major general's one deck thermal isolation film 5, invade with the radiation of stopping external heat.
As the laying mode of described unidirectional thermosphere, described unidirectional thermosphere can be put around the side wall ring winding of inner shell 2, as shown in Figure 1; Sidewall, roof and the diapire that also described unidirectional thermosphere can be centered on inner shell 2 are wrapped in inner shell 2 wherein fully around setting, such as Fig. 4, shown in Figure 5, by increasing endotherm area, to accelerate conduction and the rate of release of heat.
For described temperature control circuit, can be formed by critical pieces such as temperature sensor, processor and on-off circuits, referring to shown in Figure 3, be built in the chamber that external shell 1 surrounds, wherein temperature sensor 6 preferably is built among the chamber A that inner shell 2 surrounds, and is used for the temperature in the chamber A (being the operating temperature of logger) is carried out timing detection.Certainly, described temperature sensor 6 also can be arranged on the outer wall of inner shell 2, knows the internal temperature of chamber A by the outside wall temperature that detects inner shell 2.Because inner shell 2 is made by the good material of heat conductivility, so the outside wall temperature of inner shell 2 also can well reflect the internal temperature of chamber A, satisfied measurement requirement.Described temperature sensor 6 is according to the temperature height that detects, generate the corresponding with it signal of telecommunication (current signal or voltage signal) and export processor to, preferably transfer to the ADC interface of processor, convert analog electrical signal to data signal, the corresponding temperature value that generates in the chamber A.Processor compares described temperature value and the temperature threshold that writes in advance, and then the generation control signal exports on-off circuit to, come conducting or turn-off the current supply circuit of semiconductor chilling plate by the gauge tap connecting and disconnecting of the circuit, realize the adjusting that the supply current size in the semiconductor chilling plate is crossed in convection current.Described semiconductor chilling plate is regulated its heat conduction amount according to the size of the supply current that its inside is flow through, so that the temperature in the chamber A can remain in the desired normal working temperature scope of logger, provide the working environment of a safety for logger.
As a kind of preferred design of present embodiment, described on-off circuit preferably adopts a solid-state relay to carry out the system of temperature control circuit, as shown in Figure 3.The input control end of described solid-state relay is connected processor, and the control signal of receiving processor output is with two output-controlled end conductings or the shutoff of control solid-state relay.Two output-controlled ends of described solid-state relay are connected between ac-dc switching power and the semiconductor chilling plate, with the current supply circuit break-make of control semiconductor chilling plate.
For the required power supply of temperature control circuit work, preferably adopt aboveground AC power to supply with.Specifically, aboveground AC power can be transferred to described ac-dc switching power by cable 7, convert AC power to processor, temperature sensor and semiconductor chilling plate required dc supply by DC/AC power supply source, be each direct current electricity consumption load supplying.In order to realize being connected of cable 7 and ac-dc switching power, described cable 7 is penetrated the roof that external shell 1(preferably penetrates external shell 1) be connected to the AC of ac-dc switching power, for ac-dc switching power provides Alternating Current Power Supply.
Because temperature control circuit also can discharge certain heat when work, for the heat that temperature control circuit is produced also can be dispersed into the external world in time, preferably described temperature control circuit is arranged on unidirectional thermosphere around in the zone that forms, utilize the heat pump effect of semiconductor chilling plate 3, in the temperature, the heat that temperature control circuit is produced distributes in the lump in the chamber A that release inner shell 2 surrounds.
Certainly, described temperature control circuit also can be arranged on unidirectional thermosphere around the region exterior that forms, and only temperature sensor 6 is extend in the chamber A that inner shell 2 surrounds, such as Fig. 1, shown in Figure 4; Perhaps further processor 9 is built in unidirectional thermosphere around in the zone that forms, and with ac-dc switching power 10 and solid-state relay be arranged on unidirectional thermosphere around the region exterior that forms, as shown in Figure 5, can satisfy equally the designing requirement of whole refrigerating plant.
To the concrete installation position of temperature control circuit in refrigerating plant inside, present embodiment is not limited in above giving an example.
Ponding for fear of the shaft bottom enters into refrigerating plant inside, and play the purpose of resisting external high pressure, the position that externally passes cable 7 on the housing 1 also is provided with sealing ring 8, cable 7, sealing ring 8 and external shell 1 form enclosed construction, so that the internal cavity of refrigerating plant is sealing state, for the internal components of refrigerating plant and logger provide dry, safe working environment.
In order to make things convenient for logger to pick and place, the structure that preferably diapire of the diapire of external shell 1 and inner shell 2 is designed to be able to open, after opening the diapire of external shell 1 and inner shell 2, logger is placed among the cavity A that inner shell 2 surrounds, then close successively the diapire of inner shell 2 and the diapire of external shell 1, make refrigerating plant be closed state.
Touch the borehole wall when the lower well operations for fear of refrigerating plant, cause the damage of refrigerating plant, present embodiment preferably is designed to cylindrical (as shown in Figure 2) or rugby shape with the external shell 1 of described refrigerating plant, by being designed to round and smooth profile, touch the probability of the borehole wall to reduce refrigerating plant.
The refrigerating device structure of present embodiment is simple, be fit to place the various contactless accurate loggers such as sonic detector, magnetic survey instrument, and installation process is simple and convenient, be particularly suitable for being applied in earthquake prospecting, oil and gas exploration, the therapeutic method to keep the adverse qi flowing downward survey and the down-hole detection process of long-term geological mapping in.
Certainly; above-mentioned explanation is not to be to restriction of the present utility model; the utility model also is not limited in above-mentioned giving an example, and the variation that those skilled in the art make in essential scope of the present utility model, remodeling, interpolation or replacement also should belong to protection domain of the present utility model.
Claims (10)
1. a refrigerating plant that is used for the environment temperature of adjusting logger work is characterized in that: comprise temperature control circuit and external shell and the inner shell made by Heat Conduction Material; Described inner shell is positioned at the chamber that external shell surrounds, the chamber that described inner shell surrounds is used for placing logger, be provided with the unidirectional thermosphere that is comprised of semiconductor chilling plate, heat conducting film and thermal isolation film between described inner shell and external shell, the heat conduction direction conducts to external shell by inner shell; Described temperature control circuit connects semiconductor chilling plate, the supply current of adjustment semiconductor chilling plate in the chamber that surrounds according to the inner shell that collects.
2. the refrigerating plant of the environment temperature for regulating logger work according to claim 1 is characterized in that: comprise temperature sensor, processor and on-off circuit in described temperature control circuit; Described temperature sensor places in the chamber that inner shell surrounds or is arranged on the outer wall of inner shell, detects temperature in the chamber that inner shell surrounds, and converts the signal of telecommunication to and export processor to; Described processor exports on-off circuit to according to the temperature threshold generation control signal of the signal of telecommunication that receives and setting, by the current supply circuit break-make of gauge tap connecting and disconnecting of the circuit with the control semiconductor chilling plate.
3. the refrigerating plant of the environment temperature for regulating logger work according to claim 2, it is characterized in that: described on-off circuit is solid-state relay, its input control end connects processor, the control signal of receiving processor output, the output-controlled end of solid-state relay is connected between ac-dc switching power and the semiconductor chilling plate, the current supply circuit of conducting or cut-out semiconductor chilling plate.
4. the refrigerating plant of the environment temperature for regulating logger work according to claim 3, it is characterized in that: described ac-dc switching power stube cable, described cable passes the AC power on the external shell connecting well.
5. the refrigerating plant of the environment temperature for regulating logger work according to claim 4, it is characterized in that: described external shell is the steel metal shell of cylindrical or rugby shape; The position that passes cable at described external shell is provided with sealing ring, and the chamber that external shell is surrounded is closed state.
6. the refrigerating plant of each described environment temperature for regulating logger work in 5 according to claim 1, it is characterized in that: described unidirectional thermosphere is put around the side wall ring winding of inner shell.
7. the refrigerating plant of each described environment temperature for regulating logger work in 5 according to claim 1, it is characterized in that: described unidirectional thermosphere centers on sidewall, roof and the diapire of inner shell around setting, and inner shell is wrapped in wherein.
8. the refrigerating plant of the environment temperature for regulating logger work according to claim 7, it is characterized in that: described temperature control circuit is positioned at the zone that described unidirectional thermosphere centers on formation.
9. the refrigerating plant of each described environment temperature for regulating logger work in 5 according to claim 1, it is characterized in that: described unidirectional thermosphere by the multi-lager semiconductor cooling piece, at least one deck heat conducting film and at least one deck thermal isolation film form, and have at least the inwall of one deck thermal isolation film and external shell to fit.
10. the refrigerating plant of the environment temperature for regulating logger work according to claim 9 is characterized in that: the number of plies n of described semiconductor chilling plate 〉=(T2-T1)/and dT, n rounds numerical value; Wherein, T1 is the maximum operating temperature of Deep Well Detector, and T2 is the downhole environment temperature, and dT is the maximum temperature difference of semiconductor chilling plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220468410 CN202853191U (en) | 2012-09-14 | 2012-09-14 | Refrigeration device for adjusting temperature of working environment of logging instrument |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220468410 CN202853191U (en) | 2012-09-14 | 2012-09-14 | Refrigeration device for adjusting temperature of working environment of logging instrument |
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| CN202853191U true CN202853191U (en) | 2013-04-03 |
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| CN 201220468410 Expired - Fee Related CN202853191U (en) | 2012-09-14 | 2012-09-14 | Refrigeration device for adjusting temperature of working environment of logging instrument |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105627620A (en) * | 2014-10-27 | 2016-06-01 | 南京长峰航天电子科技有限公司 | Wide-temperature control system based on semiconductor refrigeration sheet and method thereof |
| CN105866155A (en) * | 2016-04-11 | 2016-08-17 | 中国科学院声学研究所 | X-ray fluorescent logging exploring tube for deep well detection |
| CN112051872A (en) * | 2020-09-04 | 2020-12-08 | 桂林航天工业学院 | Small-sized TEC temperature control equipment |
-
2012
- 2012-09-14 CN CN 201220468410 patent/CN202853191U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105627620A (en) * | 2014-10-27 | 2016-06-01 | 南京长峰航天电子科技有限公司 | Wide-temperature control system based on semiconductor refrigeration sheet and method thereof |
| CN105866155A (en) * | 2016-04-11 | 2016-08-17 | 中国科学院声学研究所 | X-ray fluorescent logging exploring tube for deep well detection |
| WO2017177517A1 (en) * | 2016-04-11 | 2017-10-19 | 中国科学院声学研究所 | X-ray fluorescence logging probe for deep well detection |
| CN105866155B (en) * | 2016-04-11 | 2018-11-13 | 中国科学院声学研究所 | A kind of x-ray fluorescence well logging inserting tube for detecting deep well |
| CN112051872A (en) * | 2020-09-04 | 2020-12-08 | 桂林航天工业学院 | Small-sized TEC temperature control equipment |
| CN112051872B (en) * | 2020-09-04 | 2021-10-15 | 桂林航天工业学院 | Small-sized TEC temperature control equipment |
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Granted publication date: 20130403 Termination date: 20130914 |