CN113338912A - Cast type mining measurement while drilling device - Google Patents
Cast type mining measurement while drilling device Download PDFInfo
- Publication number
- CN113338912A CN113338912A CN202110611105.0A CN202110611105A CN113338912A CN 113338912 A CN113338912 A CN 113338912A CN 202110611105 A CN202110611105 A CN 202110611105A CN 113338912 A CN113338912 A CN 113338912A
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- China
- Prior art keywords
- sensor assembly
- sensor
- compound layer
- measurement
- drilling device
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Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
- E21B47/01—Devices for supporting measuring instruments on drill bits, pipes, rods or wirelines; Protecting measuring instruments in boreholes against heat, shock, pressure or the like
- E21B47/017—Protecting measuring instruments
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
- E21B47/02—Determining slope or direction
Abstract
The invention discloses a cast type mining measurement while drilling device, which comprises a shell, wherein the shell is hollow; a signal leading-out part is formed at one end of the shell; a sensor assembly located inside the housing, an exterior of the sensor assembly having a layer of potting compound of a target thickness formed thereon; wherein the encapsulation compound layer is used to form a protective layer for the sensor component; the heating temperature of the sensor assembly during operation is less than the temperature required for melting the encapsulation compound layer. The application provides a mining measurement while drilling device of encapsulation type, simple structure is reasonable, installation convenient to use. Through the encapsulation compound layer arranged outside the sensor assembly, the explosion-proof level of the device can reach the ia level, and the safety of the device in the use process is greatly improved. The possibility of underground explosion caused by the measuring device in the using process can be effectively prevented, and the device is worthy of being popularized and used in a large area.
Description
Technical Field
The invention relates to the technical field of mining equipment, in particular to an explosion-proof casting type mining measurement-while-drilling device with the grade ia.
Background
Once a gas explosion happens to a mine, a series of serious hazards can be caused, and the hazards are mainly reflected in the following aspects:
(1) the explosion generates high temperatures. The temperature of the surrounding gas is rapidly raised by the heat generated during explosion, and the temperature at the moment of explosion is 1850-2650 ℃. Such high temperatures can cause personal injury and death, and may cause fires, burn equipment, facilities, and damage roadways.
(2) The explosion generates high pressure gas and strong shock waves. As the temperature of the gas rises suddenly during explosion, the volume of the gas near the explosion source expands rapidly, the gas pressure increases suddenly, and a strong high-pressure shock wave is formed. Powerful shock wave can make personnel in the pit suffer casualties, seriously destroys tunnel support, facility and equipment in the pit, causes the tunnel roof to fall. In addition, under the action of the explosion shock wave, the additionally accumulated gas can be flushed out, and a large amount of coal dust can be raised, so that the gas or the coal dust can be continuously exploded, and the disaster is expanded.
(3) Explosion produces a large amount of toxic and harmful gases. Gas explosion consumes large amounts of oxygen with concomitant production of large amounts of harmful gases, mainly carbon monoxide and carbon dioxide. If coal dust participates in explosion, more carbon monoxide gas is generated, and casualties are more serious. Statistics show that about 90% of dead people in gas and coal dust explosion accidents are caused by carbon monoxide poisoning and suffocation.
In the gas extraction process, if the protection level of equipment for detection in the production line is not high, the equipment can cause in-mine explosion. In the prior art, the detection equipment for coal mines, particularly the detection equipment in the production line, is ib-level. Because the safety level of the ib-level mining detection equipment is not high, a great potential safety hazard exists in practical use (ia and ib refer to the coal-based electrical safety level).
Disclosure of Invention
The invention provides an encapsulation type mining measurement-while-drilling device.
The invention provides the following scheme:
an encapsulation type mining measurement-while-drilling device comprises:
a housing, the interior of which is hollow; a signal leading-out part is formed at one end of the shell;
a sensor assembly located inside the housing, an exterior of the sensor assembly having a layer of potting compound of a target thickness formed thereon;
wherein the encapsulation compound layer is used to form a protective layer for the sensor component; the heating temperature of the sensor assembly during operation is less than the temperature required for melting the encapsulation compound layer.
Preferably: the dustproof and waterproof grade of the connection part of the signal leading-out part and the shell is not less than IP 68.
Preferably: the sensor assembly comprises a power supply battery pack, an output ia signal control circuit and a sensor body which are sequentially and electrically connected.
Preferably: the target thickness of the potting compound layer opposite the power supply battery is not less than 3 mm.
Preferably: a target thickness of the encapsulation compound layer opposite the sensor body is not less than 4.5 millimeters.
Preferably: the power supply battery pack is an intrinsic safety battery pack.
Preferably: the sensor body includes an orientation sensor.
According to the specific embodiment provided by the invention, the invention discloses the following technical effects:
by the invention, the cast-type mining measurement-while-drilling device can be realized, and in an implementation mode, the device can comprise a shell, wherein the shell is hollow; a signal leading-out part is formed at one end of the shell; a sensor assembly located inside the housing, an exterior of the sensor assembly having a layer of potting compound of a target thickness formed thereon; wherein the encapsulation compound layer is used to form a protective layer for the sensor component; the heating temperature of the sensor assembly during operation is less than the temperature required for melting the encapsulation compound layer. The application provides a mining measurement while drilling device of encapsulation type, simple structure is reasonable, installation convenient to use. Through the encapsulation compound layer arranged outside the sensor assembly, the explosion-proof level of the device can reach the ia level, and the safety of the device in the use process is greatly improved. The possibility of underground explosion caused by the measuring device in the using process can be effectively prevented, and the device is worthy of being popularized and used in a large area.
Of course, it is not necessary for any product in which the invention is practiced to achieve all of the above-described advantages at the same time.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an encapsulation type mining measurement-while-drilling device provided by an embodiment of the invention.
In the figure: the sensor module includes a case 1, a signal lead-out section 2, a sensor module 3, a power supply battery pack 31, an output ia signal control circuit 32, a sensor body 33, and a potting compound layer 4(a, b).
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 that can be derived by one of ordinary skill in the art from the embodiments given herein are intended to be within the scope of the present invention.
Examples
Referring to fig. 1, an encapsulation-type mining measurement-while-drilling apparatus provided in an embodiment of the present invention is shown in fig. 1, and the apparatus may include:
a housing 1, the interior of the housing 1 being hollow; a signal leading-out part 2 is formed at one end of the shell 1;
a sensor component 3, the sensor component 3 being located inside the housing 1, an exterior of the sensor component 3 being formed with a layer 4(a, b) of a potting compound of a target thickness;
wherein the encapsulation compound layer 4(a, b) is used to form a protective layer for the sensor component 3; the heating temperature of the sensor assembly 3 during operation is less than the temperature required to melt the potting compound layer.
The device that this application embodiment provided adopts the mode of gluing to seal to improve measuring device's explosion-proof grade, and the extra protective housing of one deck can be formed in sensor and each heating element's outside to the compound layer of pouring to reach the mesh that improves the whole explosion-proof grade of device. Because the outside of sensor module forms the encapsulation compound layer, receive the influence that the sensor module generates heat easily for seal glue melts the phenomenon. The sensor assembly provided by the embodiment of the present application is required to have a heat generation temperature less than a temperature required to melt the potting compound layer. The specific implementation mode can adopt any one of the prior art to realize a circuit with low heat emission of the sensor comprising the power supply assembly, and only the fact that the encapsulation compound layer is not melted by heat emitted by the sensor assembly is required to be ensured. Through the arrangement of the encapsulation compound layer, the measuring device provided by the application can meet the requirement of ia explosion-proof grade.
In order to improve the overall dustproof and waterproof performance of the device provided by the present application, in the embodiment of the present application, the dustproof and waterproof grade of the connection portion between each of the signal leading-out portions 2 and the housing may be not less than IP 68. After the traction connecting part and the signal leading-out part are respectively connected with the shell, the cavity for preventing the sensor assembly in the shell has the dustproof and waterproof performance of IP68 grade, so that the sensor assembly can be prevented from being damaged by dust and water, and meanwhile, the purpose of further improving the explosion-proof grade of the measuring device can be achieved.
The sensor assembly provided by the embodiment of the present application may include various forms, and in one implementation, the sensor assembly 3 may include a power supply battery pack 31, an output ia signal control circuit 32, and a sensor body 33, which are electrically connected in sequence. After the power supply battery pack, the output ia signal control circuit and the sensor body are electrically connected with each other, the heating temperature of the whole sensor assembly in use can be ensured to be lower than the temperature required for melting the casting compound layer. And then guarantee that the outside encapsulation compound layer of sensor module can not melt because the high temperature that generates heat of sensor module appears and influence explosion-proof effect.
In order to further achieve the purpose of improving the explosion-proof level of the device, in practical application, according to different components included in the sensor assembly, encapsulation compound layers with different thicknesses are arranged outside the components, so that the explosion-proof level of the whole formed device reaches ia level. For example, the target thickness of the potting compound layer 4a opposite the power supply battery is not less than 3 mm. The target thickness of the potting compound layer 4b opposite the sensor body is not less than 4.5 mm. According to the GB3836.9 and IEC60079-18 standards, the casting layer can not be less than 3 mm.
Further, in order to improve the explosion-proof effect of the device, the power supply battery pack is an intrinsic safety battery pack. The battery pack is composed of a battery and a current limiting element, is sealed into a whole, and can limit the output maximum short-circuit current within an intrinsic safety range. The sensor body may include an orientation sensor. The sensor body can also be rotationally configured with a plurality of sensors for different purposes according to requirements.
In a word, the cast type mining measurement while drilling device provided by the application is simple and reasonable in structure and convenient to install and use. Through the encapsulation compound layer arranged outside the sensor assembly, the explosion-proof level of the device can reach the ia level, and the safety of the device in the use process is greatly improved. The possibility of underground explosion caused by the measuring device in the using process can be effectively prevented, and the device is worthy of being popularized and used in a large area.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention shall fall within the protection scope of the present invention.
Claims (7)
1. The utility model provides an encapsulation type mining measurement while drilling device which characterized in that includes:
a housing, the interior of which is hollow; a signal leading-out part is formed at one end of the shell;
a sensor assembly located inside the housing, an exterior of the sensor assembly having a layer of potting compound of a target thickness formed thereon;
wherein the encapsulation compound layer is used to form a protective layer for the sensor component; the heating temperature of the sensor assembly during operation is less than the temperature required for melting the encapsulation compound layer.
2. The cast mining measurement-while-drilling device according to claim 1, wherein the dustproof and waterproof grade of the connection part of the signal leading-out part and the shell is not less than IP 68.
3. The cast type mining measurement-while-drilling device as claimed in claim 1, wherein the sensor assembly comprises a power supply battery pack, an output ia signal control circuit and a sensor body which are electrically connected in sequence.
4. The encapsulated mining measurement-while-drilling device of claim 3, wherein the target thickness of the encapsulation compound layer opposite the power supply battery pack is not less than 3 millimeters.
5. The encapsulated mining measurement-while-drilling device of claim 3, wherein the target thickness of the encapsulation compound layer opposite the sensor body is not less than 4.5 millimeters.
6. The cast mining while drilling measurement device according to claim 3, wherein the power supply battery pack is an intrinsically safe battery pack.
7. The cast mining while drilling measurement device of claim 3, wherein the sensor body comprises a direction sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110611105.0A CN113338912A (en) | 2021-06-01 | 2021-06-01 | Cast type mining measurement while drilling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110611105.0A CN113338912A (en) | 2021-06-01 | 2021-06-01 | Cast type mining measurement while drilling device |
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| Publication Number | Publication Date |
|---|---|
| CN113338912A true CN113338912A (en) | 2021-09-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110611105.0A Pending CN113338912A (en) | 2021-06-01 | 2021-06-01 | Cast type mining measurement while drilling device |
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| CN (1) | CN113338912A (en) |
Citations (11)
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| CN101109661A (en) * | 2007-08-08 | 2008-01-23 | 张品莹 | Pouring type temperature sensor |
| CN101819060A (en) * | 2010-04-23 | 2010-09-01 | 江阴众和电力仪表有限公司 | Vibration transducer |
| CN203218967U (en) * | 2013-05-08 | 2013-09-25 | 陕西斯达煤矿安全装备有限公司 | Mining encapsulation and intrinsic safe DC stabilized power supply |
| CN204827427U (en) * | 2015-04-17 | 2015-12-02 | 成都理工大学 | Mining drilling orbit is along with boring measurement system |
| CN209264959U (en) * | 2018-11-02 | 2019-08-16 | 西安安森智能仪器股份有限公司 | A kind of explosion-proof type obstacle avoidance sensor |
| CN209730030U (en) * | 2019-04-16 | 2019-12-03 | 上海申传电气股份有限公司 | A kind of synthesis explosion-proof protection structure of lithium battery power supply |
| CN210376342U (en) * | 2019-07-16 | 2020-04-21 | 重庆光可巡科技有限公司 | Charging and discharging integrated mining sensor battery cavity and mining sensor |
| CN210431960U (en) * | 2019-04-13 | 2020-04-28 | 南京京泽照明科技有限公司 | MB (multi-B) pouring type explosion-proof LED (light-emitting diode) driving power supply and explosion-proof LED lamp |
| CN210639115U (en) * | 2019-09-23 | 2020-05-29 | 广州西森自动化控制设备有限公司 | Explosion-proof dew point meter |
| CN112510782A (en) * | 2020-12-03 | 2021-03-16 | 上海神开石油科技有限公司 | Separated type explosion-proof and intrinsic safety sensor |
| CN112814666A (en) * | 2020-11-18 | 2021-05-18 | 重庆中瓦智能科技有限公司 | Mining explosion-proof mud pulse wireless measurement while drilling system |
-
2021
- 2021-06-01 CN CN202110611105.0A patent/CN113338912A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101109661A (en) * | 2007-08-08 | 2008-01-23 | 张品莹 | Pouring type temperature sensor |
| CN101819060A (en) * | 2010-04-23 | 2010-09-01 | 江阴众和电力仪表有限公司 | Vibration transducer |
| CN203218967U (en) * | 2013-05-08 | 2013-09-25 | 陕西斯达煤矿安全装备有限公司 | Mining encapsulation and intrinsic safe DC stabilized power supply |
| CN204827427U (en) * | 2015-04-17 | 2015-12-02 | 成都理工大学 | Mining drilling orbit is along with boring measurement system |
| CN209264959U (en) * | 2018-11-02 | 2019-08-16 | 西安安森智能仪器股份有限公司 | A kind of explosion-proof type obstacle avoidance sensor |
| CN210431960U (en) * | 2019-04-13 | 2020-04-28 | 南京京泽照明科技有限公司 | MB (multi-B) pouring type explosion-proof LED (light-emitting diode) driving power supply and explosion-proof LED lamp |
| CN209730030U (en) * | 2019-04-16 | 2019-12-03 | 上海申传电气股份有限公司 | A kind of synthesis explosion-proof protection structure of lithium battery power supply |
| CN210376342U (en) * | 2019-07-16 | 2020-04-21 | 重庆光可巡科技有限公司 | Charging and discharging integrated mining sensor battery cavity and mining sensor |
| CN210639115U (en) * | 2019-09-23 | 2020-05-29 | 广州西森自动化控制设备有限公司 | Explosion-proof dew point meter |
| CN112814666A (en) * | 2020-11-18 | 2021-05-18 | 重庆中瓦智能科技有限公司 | Mining explosion-proof mud pulse wireless measurement while drilling system |
| CN112510782A (en) * | 2020-12-03 | 2021-03-16 | 上海神开石油科技有限公司 | Separated type explosion-proof and intrinsic safety sensor |
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Application publication date: 20210903 |
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| RJ01 | Rejection of invention patent application after publication |