Thermos bottle and petroleum logging assembly

Abstract

The utility model discloses a vacuum bottle and a petroleum logging assembly, and belongs to the technical field of mechanical control. The thermos bottle comprises a thermos bottle body, a first temperature sensor, a second temperature sensor, a control chip, a first driver, a second driver, a first one-way valve, a second one-way valve, a first pipeline, a second pipeline, a first air pump and a second air pump. The first temperature sensor is arranged outside the thermos bottle body, and the second temperature sensor is arranged inside the thermos bottle body; the first air pump is connected with the first one-way valve through a first pipeline; the second air pump is connected with the second one-way valve through a second pipeline; the first temperature sensor, the second temperature sensor, the first driver and the second driver are respectively connected with the control chip. The thermos bottle can automatically adjust the internal temperature, and the heat preservation capacity is improved.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of mechanical control, in particular to a thermos bottle and a petroleum logging assembly. BACKGROUND

[0002] In industrial manufacturing, medical health, chemical experiment, catering distribution and the like, a thermos bottle is often used to keep components, samples or reagents warm. The thermos bottle has good heat insulation, and reduces the influence of the external environment on the internal temperature. However, the conventional thermos bottle cannot actively adjust the internal temperature, and the heat preservation capacity is easily affected by external factors.

[0003] Therefore, how to enable the thermos bottle to autonomously adjust the internal temperature and improve the heat preservation capacity is a technical problem to be solved by those skilled in the art at present. CONTENT OF THE UTILITY MODEL

[0004] The application aims to provide a thermos bottle and a petroleum logging assembly, and to enable the thermos bottle to autonomously adjust the internal temperature and improve the heat preservation capacity.

[0005] To solve the above technical problem, the application provides a thermos bottle, which comprises a thermos bottle body, a first temperature sensor, a second temperature sensor, a control chip, a first driver, a second driver, a first one-way valve, a second one-way valve, a first pipeline, a second pipeline, a first air pump and a second air pump.

[0006] The first temperature sensor is arranged outside the thermos bottle body, and the second temperature sensor is arranged inside the thermos bottle body.

[0007] The first air pump is connected with the first one-way valve through the first pipeline, and the second air pump is connected with the second one-way valve through the second pipeline. The first temperature sensor, the second temperature sensor, the first driver and the second driver are connected with the control chip respectively.

[0008] The first temperature sensor is used to detect the ambient temperature outside the thermos bottle body.

[0009] The second temperature sensor is used to detect the bottle temperature inside the thermos bottle body.

[0010] The control chip is used to start the first driver, the second driver, the first air pump and the second air pump when the temperature difference between the bottle temperature and the ambient temperature is greater than a preset value.

[0011] The first air pump is used to deliver the gas outside the thermos bottle body to the first one-way valve.

[0012] The second air pump is configured to transport the air inside the thermos body to the second one-way valve.

[0013] The first driver is configured to open or close the first one-way valve, and the air flow direction of the first one-way valve is from the first air pump to the inside of the thermos body.

[0014] The second driver is configured to open or close the second one-way valve, and the air flow direction of the second one-way valve is from the second air pump to the outside of the thermos body.

[0015] Optionally, the first one-way valve is arranged inside the thermos body, and the second one-way valve is arranged outside the thermos body.

[0016] Optionally, the first air pump is arranged outside the thermos body, and the second air pump is arranged inside the thermos body.

[0017] Optionally, the first air pump and the second air pump are both reciprocating air pumps.

[0018] Optionally, the thermos comprises a plurality of first temperature sensors and a plurality of second temperature sensors, the distance between any two first temperature sensors is greater than a first distance, and the distance between any two second temperature sensors is greater than a second distance.

[0019] Optionally, the inside of the thermos body is provided with a petroleum logging instrument.

[0020] Optionally, the first one-way valve is arranged at a preset position, and the distance between the preset position and the mounting position of the petroleum logging instrument is less than a third distance.

[0021] Optionally, the inside of the thermos body is provided with a heat-absorbing body.

[0022] Optionally, the inside of the thermos body is provided with a heat-insulating body.

[0023] The application further provides a petroleum logging assembly, characterized in comprising a logging instrument and any of the above thermos bottles, and the logging instrument is mounted inside the thermos bottle.

[0024] The thermos provided by the application comprises a thermos body, a first temperature sensor, a second temperature sensor, a control chip, a first driver, a second driver, a first one-way valve, a second one-way valve, a first pipeline, a second pipeline, a first air pump and a second air pump. The first temperature sensor and the second temperature sensor are used to detect the ambient temperature and the bottle temperature respectively, and when the temperature difference between the bottle temperature and the ambient temperature exceeds a preset value, the control chip is used to start the first driver, the second driver, the first air pump and the second air pump, so that the gas in the thermos and the gas in the external environment are exchanged through the first one-way valve, the second one-way valve, the first pipeline and the second pipeline, so as to ensure the stability of the internal temperature. Therefore, the thermos can autonomously adjust the internal temperature and improve the heat preservation capacity. The application also provides an oil logging assembly, which has the above beneficial effects, and details are not repeated here. BRIEF DESCRIPTION OF DRAWINGS

[0025] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application, and those skilled in the art can obtain other drawings according to the provided drawings without creative labor.

[0026] Figure 1 A structure schematic diagram of a thermos provided by an embodiment of the present application;

[0027] Figure 2 A partial structure schematic diagram of a self-adaptive temperature regulation control system provided by an embodiment of the present application;

[0028] Figure 3 A whole structure schematic diagram of a self-adaptive temperature regulation control system provided by an embodiment of the present application;

[0029] Figure 4 A self-adaptive temperature regulation control principle schematic diagram provided by an embodiment of the present application;

[0030] Figure 5 A self-adaptive temperature regulation control flow schematic diagram provided by an embodiment of the present application. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions in the embodiments of the present application will be described clearly and completely below with the drawings in the embodiments of the present application. Obviously, the described embodiments are some of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the protection scope of the present application.

[0032] Please see the following Figure 1 , Figure 1 A structure diagram of a thermos provided by an embodiment of the present application, the thermos comprising: a thermos body A1, a first temperature sensor A2, a second temperature sensor A3, a control chip A4, a first driver A5, a second driver A6, a first one-way valve A7, a second one-way valve A8, a first pipeline A9, a second pipeline A10, a first air pump A11, and a second air pump A12. Figure 1 The dashed lines and arrows in the figure represent the direction of gas flow.

[0033] In this embodiment, the first temperature sensor is arranged outside the thermos body, and the second temperature sensor is arranged inside the thermos body. The first temperature sensor is used to detect the temperature outside the thermos body, i.e., the ambient temperature; the first temperature sensor can transmit the detected temperature signal to the control chip. The second temperature sensor is used to detect the temperature inside the thermos body, i.e., the bottle temperature; the second temperature sensor can transmit the detected temperature signal to the control chip.

[0034] In this embodiment, the first air pump is connected to the first one-way valve through the first pipeline; the second air pump is connected to the second one-way valve through the second pipeline; the first temperature sensor, the second temperature sensor, the first driver, and the second driver are respectively connected to the control chip.

[0035] The control chip (such as a micro control unit MCU) is used to start the first driver, the second driver, the first air pump, and the second air pump when the temperature difference between the bottle temperature and the ambient temperature is greater than a preset value. The first driver is used to open or close the first one-way valve; the first driver opens the first one-way valve when the control chip starts the first driver, and the first one-way valve is closed when the control chip does not start the first driver. The first one-way valve in the open state allows gas to flow, and the first one-way valve in the closed state does not allow gas to flow. The second driver is used to open or close the second one-way valve; the second driver opens the second one-way valve when the control chip starts the second driver, and the second one-way valve is closed when the control chip does not start the second driver. The second one-way valve in the open state allows gas to flow, and the second one-way valve in the closed state does not allow gas to flow.

[0036] The temperature difference refers to the value of the bottle temperature minus the ambient temperature.

[0037] The first air pump is configured to transport the gas outside the thermos body to the first one-way valve. Specifically, after the control chip starts the first air pump, the first air pump can extract the gas outside the thermos body and transport it to the first one-way valve, and the first one-way valve is opened to allow the gas to flow from the first air pump to the inside of the thermos body; after the control chip starts the first driver and the first air pump, the gas outside the thermos body can be transported to the inside of the thermos body.

[0038] The second air pump is configured to transport the gas inside the thermos body to the second one-way valve. Specifically, after the control chip starts the second air pump, the second air pump can extract the gas inside the thermos body and transport it to the second one-way valve, and the second one-way valve is opened to allow the gas to flow from the second air pump to the outside of the thermos body; after the control chip starts the second driver and the second air pump, the gas inside the thermos body can be transported to the outside of the thermos body.

[0039] The first driver is configured to open or close the first one-way valve; wherein the gas flow direction of the first one-way valve is from the first air pump to the inside of the thermos body. The second driver is configured to open or close the second one-way valve; wherein the gas flow direction of the second one-way valve is from the second air pump to the outside of the thermos body.

[0040] The thermos provided by the present application comprises a thermos body, a first temperature sensor, a second temperature sensor, a control chip, a first driver, a second driver, a first one-way valve, a second one-way valve, a first pipeline, a second pipeline, a first air pump and a second air pump. The first temperature sensor and the second temperature sensor are used to detect the ambient temperature and the bottle temperature, respectively, and when the temperature difference between the bottle temperature and the ambient temperature exceeds a preset value, the control chip is used to start the first driver, the second driver, the first air pump and the second air pump, so that the gas in the thermos and the gas in the external environment are exchanged through the first one-way valve, the second one-way valve, the first pipeline and the second pipeline, to ensure the stability of the internal temperature. Therefore, the thermos can autonomously adjust the internal temperature, and the heat preservation capacity is improved.

[0041] As for the Figure 1 For further introduction of the corresponding embodiment, the first one-way valve is arranged inside the thermos body, and the second one-way valve is arranged outside the thermos body.

[0042] As for the Figure 1 For further introduction of the corresponding embodiment, the first air pump is arranged outside the thermos body, and the second air pump is arranged inside the thermos body.

[0043] The first air pump and the second air pump are both reciprocating air pumps.

[0044] As for the Figure 1 Further to the corresponding embodiments, the thermos bottle comprises a plurality of the first temperature sensors and a plurality of the second temperature sensors; the distance between any two of the first temperature sensors is greater than the first distance; the distance between any two of the second temperature sensors is greater than the second distance. The control chip can determine the ambient temperature according to the temperature detected by all the first temperature sensors, and can also determine the bottle temperature according to the temperature detected by all the second temperature sensors.

[0045] As for the Figure 1 Further to the corresponding embodiments, the thermos bottle body is internally provided with a petroleum logging instrument. The petroleum logging instrument can be a resistivity logging instrument, a caliper logging instrument, a formation tester, etc.

[0046] As for the Figure 1 Further to the corresponding embodiments, the first one-way valve is arranged at a preset position, and the distance between the preset position and the installation position of the petroleum logging instrument is less than a third distance. The petroleum logging instrument generates heat during operation, and by arranging the distance between the first one-way valve and the petroleum logging instrument, the bottle temperature can be quickly reduced. In this embodiment, the circuit board of the logging instrument can be arranged in the thermos bottle.

[0047] As for the Figure 1 Further to the corresponding embodiments, the thermos bottle body is internally provided with a heat-absorbing body. The heat-absorbing body comprises a metal heat-absorbing body, a ceramic block, a nano carbon tube, etc.

[0048] As for the Figure 1 Further to the corresponding embodiments, the thermos bottle body is internally provided with a heat-insulating body. The heat-insulating body can be arranged on the inner wall of the thermos bottle body.

[0049] The embodiments of the present application also provide a petroleum logging assembly, which comprises a logging instrument and any one of the above thermos bottles, and the logging instrument is arranged in the interior of the thermos bottle.

[0050] The above-described schemes are described in the embodiments, which will be illustrated by the following examples in actual application.

[0051] Petroleum logging instrument needs to work in deep formation of several kilometers or even ten thousand meters. The working temperature greatly exceeds the working temperature of IC chip of instrument circuit. Therefore, the thermos bottle technology is generally used in the downhole instrument to delay the temperature rise of the internal space of the circuit, so as to protect the temperature sensitive electronic equipment and sensor, and enable the instrument to work normally for a certain period of time. The limitation of the existing thermos bottle technology is that it can only passively isolate heat and cannot actively adjust the internal temperature of the instrument. In the long-term downhole operation process, even if the high-efficiency thermos bottle is used, the internal circuit working heat and the external high-temperature environment affect the internal temperature to gradually rise, which cannot automatically adjust the protection effect according to the change of the environment temperature, resulting in that the circuit cannot work normally for a long time. The existing technical solution uses a refrigerator to control the temperature, but this method has high energy consumption and low efficiency in a high-temperature environment. Some systems use phase change materials to absorb heat, but this can only be effective for a limited time.

[0052] In view of the technical problems in the related art, the present application provides a self-adaptive temperature regulation control system of a petroleum logging instrument (i.e. a downhole logging instrument), which belongs to the technical field of petroleum exploration and gas logging. The system can effectively adjust the internal temperature of the instrument by monitoring the temperature difference between the inside and outside of the thermos bottle, and starting the internal and external air circulation mechanism when the temperature outside the bottle is lower than the temperature inside the bottle, thereby prolonging the working time of the instrument in a high-temperature downhole environment.

[0053] In this embodiment, the temperature sensor is used to monitor the temperature change in different areas inside and outside the thermos bottle in real time. When the temperature inside the thermos bottle exceeds a certain threshold value outside the bottle, the internal air circulation system of the instrument is started to circulate the high-temperature heat energy inside the thermos bottle to the outside of the thermos bottle, so that the internal temperature of the instrument can be lowered in real time along with the temperature of the borehole, thereby increasing the stability and reliability of the instrument and prolonging the service life of the instrument.

[0054] The self-adaptive temperature regulation control system comprises a temperature sensor, a microprocessor control unit, a miniature reciprocating air pump system, a two-way pipeline system and a one-way valve.

[0055] In this embodiment, two pipelines connecting the inside and outside of the thermos bottle can be installed on the electronic circuit skeleton, and a one-way valve is installed on each pipeline to ensure that the direction of air flow is controllable. The temperature inside and outside the thermos bottle is continuously monitored, and when the temperature difference reaches a threshold value (the temperature inside the bottle is higher than the threshold value of the temperature outside the bottle), the temperature regulation system is started, and the miniature reciprocating air pump is turned on. One pipeline circulates the high-temperature gas inside the thermos bottle to the outside space of the thermos bottle, and the other pipeline circulates the low-temperature gas outside the thermos bottle to the inside of the thermos bottle, so that the air inside and outside the thermos bottle is circulated and exchanged, and the heat in the instrument is evenly distributed.

[0056] Please refer to Figure 2 and Figure 3 , Figure 2 is a partial structure schematic diagram of a self-adaptive temperature regulation control system provided by the embodiment of the present application.Figure 3 This is a schematic diagram of the overall structure of an adaptive temperature control system provided in an embodiment of the present application. The system includes: an external micro air pump (i.e., a first air pump) B1, an external temperature sensor (i.e., a first temperature sensor) B2, a pipeline (i.e., a first pipeline) B3, a pipeline (i.e., a second pipeline) B4, an internal one-way valve (i.e., a first one-way valve) B5, an internal temperature sensor (i.e., a second temperature sensor) B6, an internal micro air pump (i.e., a second air pump) B7, a microprocessor control unit (control chip) B8, an external one-way valve (i.e., a second one-way valve) B9, a heat insulator B10, a heat absorber B11, and a thermos flask body B12. This system monitors the temperature difference between the inside and outside of the thermos flask and activates the air circulation mechanism at the appropriate time to effectively regulate the internal temperature of the instrument, extending the instrument's operating time in high-temperature downhole environments. This system enables the instrument to actively, efficiently, and long-term regulate its internal temperature in high-temperature environments. It is suitable for wells with varying temperature conditions and remains effective even during long-term operation.

[0057] See Figure 4 , Figure 4 This is a schematic diagram of the adaptive temperature regulation control principle provided by an embodiment of the present application. Both the external and internal temperature sensors are connected to a microprocessor control unit. The microprocessor control unit can control a first actuator to open a one-way valve inside the bottle, allowing the air pump to transfer gas from outside the thermos to inside. The microprocessor control unit can also control a second actuator to open a one-way valve outside the bottle, allowing the air pump to transfer gas from inside the thermos to outside the bottle.

[0058] The following is an introduction to temperature monitoring:

[0059] The key electronic circuitry of oil well logging equipment is housed within the thermos flask itself. Therefore, an internal temperature sensor is placed inside the flask, along with an external temperature sensor. A microprocessor control unit collects data from both sensors and activates the air circulation mechanism when the temperature difference, ΔT, reaches a predetermined threshold.

[0060] ΔT=T1-T2, T1 represents the temperature inside the bottle, and T2 represents the ambient temperature (i.e. the temperature outside the bottle).

[0061] The air circulation process in this embodiment is as follows: the microprocessor control unit outputs a control level to open the one-way valve outside the bottle through the second driver, and turns on the micro air pump inside the bottle through the second pipeline to circulate the hot air in the thermos to the outside of the thermos.

[0062] The pressure balancing process in this embodiment is as follows: the microprocessor control unit uses a timer to control a delay of X seconds, controls the first driver to open the one-way valve inside the bottle, turns on the micro air pump outside the bottle, and circulates the air outside the thermos flask into the thermos flask through the first pipeline to balance the air pressure inside and outside the bottle.

[0063] When the microprocessor control unit monitors that the temperature difference ΔT is equal to 0 after delaying Y seconds, the air circulation process in and out of the bottle is ended. The micro air pump outside the bottle and the micro air pump inside the bottle can be closed in succession with an interval of 1 second.

[0064] Please refer to Figure 5 , Figure 5 The self-adaptive temperature regulation control process provided by the embodiment of the application is shown in a schematic diagram, and the specific process is as follows: initializing the system, reading the temperature sensor, calculating the temperature difference ΔT; judging whether ΔT is greater than a threshold value, if ΔT is greater than the threshold value, starting the micro air pump inside the bottle, delaying X seconds, starting the micro air pump outside the bottle and delaying Y seconds. If ΔT is not greater than the threshold value, reading the temperature sensor again.

[0065] The embodiment has simple structure, utilizes the temperature difference between inside and outside of the thermos bottle, and realizes heat balance through air reciprocating circulation, is easy to realize and maintain, improves the working stability of the instrument in a high-temperature environment, improves the logging data quality and reliability, and prolongs the service life of the instrument.

[0066] The embodiment of the application is a self-adaptive temperature regulation control system for a downhole logging instrument. The system monitors the temperature difference between inside and outside of the thermos bottle, when the temperature outside the bottle is lower than the temperature inside the bottle, starts an air circulation mechanism between inside and outside, effectively regulates the temperature inside the instrument, prolongs the working time of the instrument in a high-temperature downhole environment, improves the working stability of the instrument, improves the logging data quality and reliability, and prolongs the service life of the instrument.

[0067] Because the situation is complex and cannot be listed and described one by one, those skilled in the art should realize that there are many examples according to the basic principles provided by the application combined with the actual situation, and without paying enough creative labor, they should all be within the protection scope of the application.

[0068] The embodiments in the specification are described in a progressive manner, and each embodiment focuses on the difference from other embodiments. The same and similar parts between the embodiments can be referred to each other.

[0069] The principles and implementation manners of the application are described by using specific examples in the present application. The above description of the embodiments is only used to help understand the scheme and core idea of the application. It should be noted that those skilled in the art can make some improvements and modifications to the application without departing from the principles of the application, and these improvements and modifications also fall within the protection scope of the claims of the application.

Claims

1. A thermos bottle, characterized in that: include: Thermos flask body, first temperature sensor, second temperature sensor, control chip, first driver, second driver, first one-way valve, second one-way valve, first pipeline, second pipeline, first air pump and second air pump; The first temperature sensor is arranged outside the thermos bottle body, and the second temperature sensor is arranged inside the thermos bottle body; The first air pump is connected to the first one-way valve through the first pipeline; the second air pump is connected to the second one-way valve through the second pipeline; the first temperature sensor, the second temperature sensor, the first driver, and the second driver are respectively connected to the control chip; The first temperature sensor is used to detect the ambient temperature outside the thermos bottle body; The second temperature sensor is used to detect the internal temperature of the thermos bottle body; The control chip is configured to start the first driver, the second driver, the first air pump, and the second air pump when the temperature difference between the temperature inside the bottle and the ambient temperature is greater than a preset value; The first air pump is used to transport the gas outside the thermos bottle body to the first one-way valve; The second air pump is used to transport the gas inside the thermos bottle body to the second one-way valve; The first driver is used to open or close the first one-way valve; wherein the gas flow direction of the first one-way valve is from the first air pump to the interior of the thermos bottle body; The second driver is used to open or close the second one-way valve; wherein the gas flow direction of the second one-way valve is from the second air pump to the outside of the thermos bottle body.

2. The thermos bottle according to claim 1, characterized in that: The first one-way valve is arranged inside the thermos flask body, and the second one-way valve is arranged outside the thermos flask body.

3. The thermos bottle according to claim 1, characterized in that: The first air pump is arranged outside the thermos flask body, and the second air pump is arranged inside the thermos flask body.

4. The thermos bottle according to claim 1, characterized in that: The first air pump and the second air pump are both reciprocating air pumps.

5. The thermos bottle according to claim 1, characterized in that: The thermos flask includes a plurality of the first temperature sensors and a plurality of the second temperature sensors; the distance between any two of the first temperature sensors is greater than a first distance; and the distance between any two of the second temperature sensors is greater than a second distance.

6. The thermos bottle according to claim 1, characterized in that: An oil well logging instrument is installed inside the thermos bottle body.

7. The thermos bottle according to claim 6, characterized in that: The first one-way valve is arranged at a preset position, and the distance between the preset position and the installation position of the petroleum logging instrument is less than a third distance.

8. The thermos bottle according to claim 1, characterized in that: A heat absorber is arranged inside the thermos bottle body.

9. The thermos bottle according to claim 1, characterized in that: A heat insulator is arranged inside the thermos bottle body.

10. A petroleum logging assembly, characterized in that: The invention comprises a well logging instrument and the thermos bottle according to any one of claims 1 to 9, wherein the well logging instrument is installed inside the thermos bottle.

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