Deepwater thermocouple temperature measuring device and control system
By designing the confluence, sedimentation, and temperature measurement chamber structure within the hollow chamber, and combining it with an automated control system, the problem of thermocouples being easily damaged in deep-water environments was solved, achieving high-precision temperature monitoring.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- GUANGZHOU AOSONG ELECTRONIC CO LTD
- Filing Date
- 2023-12-21
- Publication Date
- 2026-06-02
Smart Images
Figure CN117723159B_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of temperature detection technology, and in particular to a deep-sea thermocouple temperature measuring device and control system. Background Technology
[0002] Most temperature sensing devices on the market are based on thermocouples and resistance temperature detectors (RTDs). Thermocouples directly measure temperature by heat energy and convert the temperature signal into a thermoelectric potential (TEP) signal. This TEP signal is then converted into the temperature of the measured medium by an electrical instrument (secondary instrument). Due to their high accuracy and wide temperature measurement range, thermocouples are widely used in the field of temperature sensing. The working principle of a thermocouple is to connect two different conductors or semiconductors into a closed circuit. When the temperatures of the two junctions are different, an EMP is generated in the circuit. This phenomenon is called the hot spot effect, also known as the Seebeck effect. The end that directly measures the temperature is called the working junction, and the other end is called the cold junction. The cold junction is directly connected to the instrument or supporting equipment. The display instrument will indicate the EMP generated by the thermocouple. The EMP can be converted into the measured temperature by function calculation.
[0003] Currently, most deep-water temperature measurement methods use deep-water thermometers, which are widely used in rivers, wells, fishponds, and oceans, as well as in rivers, lakes, reservoirs, and runoff testing stations. These thermometers are placed in water for short or long periods to monitor water temperature (measuring water temperature at any depth up to 40 meters, with a measurement range of -2℃ to +40℃). They can also be used for sampling and detecting water pollution in rivers, lakes, and reservoirs. However, deep-water thermometers actually use mercury thermometers as sensing components, and their accuracy is quite limited. It can perform high-precision temperature measurement; therefore, as one of the contact temperature measurement sensors, coupled with its characteristics of simple structure, convenient manufacturing, wide temperature measurement range, low thermal inertia, high accuracy, and easy long-distance transmission of output signals, it has become the most widely used thermoelectric sensor at present, and is also gradually being applied to deep-water temperature measurement. Due to the high temperature measurement accuracy and stability of thermocouples, by placing such thermocouple sensors in deep water for temperature detection, the accuracy of deep-water temperature measurement can be effectively improved, and the temperature changes in deep water can be accurately monitored, providing accurate data for scientific research and engineering technicians.
[0004] However, while applying thermocouples to deep-water temperature measurement can improve its accuracy, the testing environment is also different. Deep-water temperature measurement differs from daily shallow-water temperature measurement in that the environment at the bottom of rivers or in the deep sea is more complex. This includes the impact of fast water currents on the thermocouple, the compression of the thermocouple by the high-pressure deep-water environment, the collision of the thermocouple with sand and mud carried by the current, and the corrosion of the thermocouple by underwater organisms. This makes the thermocouple very vulnerable to damage underwater, increasing the difficulty of temperature measurement and potentially causing the thermocouple to be damaged and lose its effectiveness. At the same time, the measured value of traditional deep-water thermometers may also be inevitably affected by the external water temperature environment as the thermometer rises in the water, resulting in a temperature value that is not the original temperature at the measurement point and thus producing errors, affecting the measurement results.
[0005] For example, Chinese invention patent publication number "CN113776683A" entitled "A Waterproof Armored Thermocouple" describes a thermocouple with a reinforced assembly. This assembly includes a groove, a slider, a fixing plate, a threaded groove, a bolt, and a locking groove. After the worker tightens the fixing flange, they simply slide the fixing plate downwards, allowing it to slide downwards through the slider in the groove until the slider reaches the lowest point of the groove. At this point, the bolt in the fixing plate and the locking groove in the fixing flange are at the same level. The worker then tightens the bolt, causing it to rotate inwards through the threaded groove until the inner end of the bolt engages with the locking groove in the fixing flange, forming a limit. This device ensures that the fixing flange will not easily loosen during fixing, guaranteeing a secure fixation and achieving a waterproof effect. However, this thermocouple cannot cope with harsh environments such as high pressure, fast water flow, and high sediment content in deep water.
[0006] Therefore, how to enable thermocouples to measure temperature underwater is a technical problem that technicians need to solve. Summary of the Invention
[0007] To overcome the problems existing in related technologies, this application provides a deep-water thermocouple temperature measurement device and control system, which realizes temperature measurement in deep water areas and solves the problem of thermocouple damage caused by high-pressure water flow, silt and marine organisms in deep water areas.
[0008] To achieve the above objectives, this application mainly adopts the following technical solutions, including:
[0009] Hollow housing and thermocouples;
[0010] The hollow housing contains a manifold, a sedimentation chamber, and a temperature measuring chamber. The sedimentation chamber is located directly below the manifold and is connected to it. The thermocouple is installed in the temperature measuring chamber and is used to detect the water temperature inside the temperature measuring chamber.
[0011] The hollow box is equipped with a discharge pipe and N manifolds inside. The inlet of the discharge pipe is connected to the sedimentation chamber, and the outlet of the discharge pipe is connected to the temperature measuring chamber. N is an integer greater than 1.
[0012] The inlet of the manifold is located on the outside of the hollow box, and the outlets of the manifold are all connected to the manifold cavity. Furthermore, the outlets of the N manifolds are all symmetrical about the center of the midpoint of the manifold cavity.
[0013] Preferably, the top of the manifold is provided with a guide structure, which has N guide arc surfaces. The guide structure is located at the center of the top of the manifold, and the N guide arc surfaces are all symmetrical about the center of the top of the manifold. Each outlet of the manifold corresponds to one guide arc surface, and the intersection of the N guide arc surfaces is located on the central axis of the manifold.
[0014] Preferably, the inside of the manifold cavity is further provided with a converging cone, which is located directly below the guide structure. The central axis of the converging cone coincides with the midpoint of the manifold cavity. The converging cone is provided with a converging inlet and a converging outlet, wherein the aperture of the converging inlet is larger than the aperture of the converging outlet, and the converging outlet is connected to the sedimentation cavity.
[0015] Preferably, the inlet of the manifold is located below the outlet of the manifold, and the manifold is composed of several sections of straight infusion pipes and several sections of intercepting bends connected to each other, with the straight infusion pipes and the intercepting bends being arranged alternately; wherein, the intercepting bends are used to slow down the flow velocity of water carrying silt.
[0016] Preferably, the sedimentation chamber is a frustum-shaped chamber with a top surface area smaller than the bottom surface area. The sedimentation chamber includes several layers of interception steps, which are evenly arranged on the inner wall of the sedimentation chamber. The inlet of the discharge pipe is located on the side wall of the sedimentation chamber, and the inlet of the discharge pipe is located on the side closer to the top surface of the sedimentation chamber.
[0017] Preferably, the inlet of the manifold is provided with a barrier screen, and the inlet of the outlet is provided with a filter screen, the mesh size of which is smaller than that of the barrier screen.
[0018] Preferably, a solenoid valve is provided at the inlet of the manifold, which is used to control the connection or closure of the manifold.
[0019] Preferably, a pressure relief valve is provided on the outside of the hollow box, and the pressure relief valve is connected to the temperature measuring chamber through an exhaust pipe, with the air inlet of the exhaust pipe located on the top surface of the temperature measuring chamber.
[0020] Preferably, the outlet of the discharge pipe is located on the side wall of the temperature measuring chamber, and the outlet of the discharge pipe is located on the side close to the bottom surface of the temperature measuring chamber. The thermocouple is fixed on the top surface of the temperature measuring chamber, and the temperature measuring end of the thermocouple is located above the outlet of the discharge pipe.
[0021] In another aspect, this application provides a temperature measuring device control system, comprising:
[0022] Such as the deep-sea thermocouple temperature measuring device mentioned above, as well as the control module, air pressure sensor, liquid level sensor and hydraulic sensor;
[0023] The pressure sensor is located on the top surface of the temperature measuring cavity, the hydraulic sensor is located on the outer wall of the hollow box, the liquid level sensor is located on the inner side of the temperature measuring cavity, and the liquid level sensor is located above the thermocouple. The control module is electrically connected to the pressure relief valve, the solenoid valve, the pressure sensor, the liquid level sensor, and the hydraulic sensor, respectively.
[0024] When the hydraulic pressure outside the hollow box reaches a preset value, the hydraulic sensor sends a first signal to the control module, and the control module controls the switch solenoid valve to open according to the first signal;
[0025] When the air pressure inside the temperature measuring chamber reaches a preset value, the air pressure sensor sends a second signal to the control module, and the control module controls the pressure relief valve to open according to the second signal.
[0026] When the liquid level in the temperature measuring chamber reaches a preset value, the liquid level sensor sends a third signal to the control module, and the control module controls the switch solenoid valve to close according to the third signal.
[0027] The technical solution provided in this application may include the following beneficial effects:
[0028] In this technical solution, a hollow box is placed in the area of the water body to be tested. The weight of the hollow box allows it to naturally sink to the height of the water body. The hollow box also prevents attacks from aquatic organisms. Because the air pressure inside the hollow box is lower than the hydraulic pressure outside, the water body to be tested on the outside can flow into the confluence chamber from the outside of the hollow box through N confluence pipes symmetrically positioned at the midpoint of the confluence chamber. The high-speed inflow of water body collidees and converges within the confluence chamber, partially offsetting the impact force of the water flow, thereby reducing the water flow velocity and preventing excessive water velocity from impacting the thermocouple's measuring end and causing thermocouple damage. The collected water flows into the sedimentation chamber below, where sediment is settled, trapping it at the bottom. This further reduces impurities in the water, preventing them from entering the temperature measuring chamber and damaging the thermocouples. It also prevents impurities from affecting the accuracy of the thermocouples' temperature measurements, thus preventing errors. Finally, the water flows into the temperature measuring chamber through a discharge pipe, where the thermocouples measure its temperature. This allows for temperature measurement in deep water, reducing the adverse effects of the harsh underwater environment and improving the accuracy of deep-water temperature measurements. It should be understood that the above general description and the following detailed description are exemplary and explanatory only and do not limit this application. Attached Figure Description
[0029] The above and other objects, features and advantages of this application will become more apparent from the more detailed description of exemplary embodiments thereof in conjunction with the accompanying drawings, wherein the same reference numerals generally represent the same components in the exemplary embodiments thereof.
[0030] Figure 1 This is a schematic diagram of the hollow box structure shown in the embodiments of this application;
[0031] Figure 2 This is a schematic diagram of the temperature measuring device shown in the embodiments of this application;
[0032] Figure 3 This is another structural schematic diagram of the temperature measuring device shown in the embodiments of this application;
[0033] Figure 4 This is a schematic diagram of the guiding structure shown in the embodiments of this application;
[0034] In the diagram: 01. Hollow housing; 02. Thermocouple; 03. Manifold; 04. Sedimentation chamber; 040. Interception step; 05. Temperature measuring chamber; 06. Discharge pipe; 07. Manifold; 070. Infusion straight pipe; 071. Interception bend; 08. Guiding structure; 080. Guiding arc surface; 09. Converging cone; 090. Converging inlet; 091. Converging outlet; 10. Barrier mesh; 11. Filter mesh; 12. Solenoid valve; 13. Pressure relief valve; 14. Control module; 15. Air pressure sensor; 16. Liquid level sensor; 17. Hydraulic sensor. Detailed Implementation
[0035] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings.
[0036] The technical solutions of the embodiments of this application are described in detail below with reference to the accompanying drawings.
[0037] See Figures 1 to 4 The temperature measuring device includes:
[0038] Hollow housing 01 and thermocouple 02;
[0039] The hollow housing 01 is provided with a manifold 03, a sedimentation chamber 04 and a temperature measuring chamber 05. The sedimentation chamber 04 is located directly below the manifold 03 and is connected to the manifold 03. The thermocouple 02 is installed in the temperature measuring chamber 05 and is used to detect the water temperature in the temperature measuring chamber 05.
[0040] The hollow box 01 is further provided with a discharge pipe 06 and N manifold pipes 07 inside. The inlet of the discharge pipe 06 is connected to the sedimentation chamber 04, and the outlet of the discharge pipe 06 is connected to the temperature measuring chamber 05. N is an integer greater than 1.
[0041] The inlet of the manifold 07 is located outside the hollow box 01, and the outlets of the manifold 07 are all connected to the manifold cavity 03. Furthermore, the outlets of the N manifolds 07 are all symmetrical about the midpoint of the manifold cavity 03.
[0042] Specifically, the top of the manifold 03 is provided with a guide structure 08, which has N guide arc surfaces 080. The guide structure 08 is located at the center of the top of the manifold 03. The N guide arc surfaces 080 are all symmetrical about the center of the top of the manifold 03, and the outlet of each manifold pipe 07 corresponds to one guide arc surface 080. The intersection of the N guide arc surfaces 080 is located on the central axis of the manifold 03.
[0043] Specifically, the inside of the confluence cavity 03 is also provided with a converging cone 09, which is located directly below the guide structure 08. The central axis of the converging cone coincides with the midpoint of the confluence cavity 03. The converging cone is provided with a converging inlet 090 and a converging outlet 091, wherein the aperture of the converging inlet 090 is larger than the aperture of the converging outlet 091, and the converging outlet 091 is connected to the sedimentation cavity 04.
[0044] Specifically, the inlet of the manifold 07 is located below the outlet of the manifold 07. The manifold 07 is composed of several straight infusion pipes 070 and several intercepting bends 071 connected to each other, and the straight infusion pipes 070 and the intercepting bends 071 are alternately arranged. The intercepting bends 071 are used to slow down the flow speed of water carrying mud and sand.
[0045] Specifically, the sedimentation chamber 04 is a frustum-shaped chamber with a top surface area smaller than the bottom surface area. The sedimentation chamber 04 includes several layers of interception steps 040, which are evenly arranged on the inner wall of the sedimentation chamber 04. The inlet of the discharge pipe 06 is located on the side wall of the sedimentation chamber 04, and the inlet of the discharge pipe 06 is located on the side closer to the top surface of the sedimentation chamber 04.
[0046] Specifically, the inlet of the manifold 07 is provided with a barrier screen 10, and the inlet of the outlet 06 is provided with a filter screen 11, the mesh size of the filter screen 11 being smaller than that of the barrier screen 10.
[0047] Specifically, a solenoid valve 12 is provided at the inlet of the manifold 07, and the solenoid valve 12 is used to control the connection or closure of the manifold 07.
[0048] Specifically, a pressure relief valve 13 is provided on the outside of the hollow box 01. The pressure relief valve 13 is connected to the temperature measuring chamber 05 through an exhaust pipe. The air inlet of the exhaust pipe is located on the top surface of the temperature measuring chamber 05.
[0049] Specifically, the outlet of the discharge pipe 06 is located on the side wall of the temperature measuring cavity 05, and the outlet of the discharge pipe 06 is located on the side close to the bottom surface of the temperature measuring cavity 05. The thermocouple 02 is fixed on the top surface of the temperature measuring cavity 05, and the temperature measuring end of the thermocouple 02 is located above the outlet of the discharge pipe 06.
[0050] Example 1
[0051] In this embodiment, to address the issue of thermocouple 02 being damaged or experiencing measurement errors due to the influence of high-pressure water flow, silt, and aquatic organisms when measuring temperature in deep water, this embodiment addresses the problem by placing a hollow box 01 into the area of the water to be measured. The weight of the hollow box 01 (in this example, the hollow box 01 is made of an alloy metal, such as aluminum alloy or stainless steel, a rust-resistant alloy) allows it to naturally sink to the height of the water to be measured. Furthermore, the hollow box 01 prevents attacks from aquatic organisms. Because the air pressure inside the hollow box 01 is lower than the hydraulic pressure outside, the water to be measured on the outside can flow into the confluence chamber 03 from the outside of the hollow box 01 through three confluence pipes 07 symmetrically positioned at the midpoint of the confluence chamber 03. The high-speed inflow of the water to be measured converges and counteracts the impact of the water flow within the confluence chamber 03, partially offsetting the impact of the water flow. The water flow is reduced by the force of the flow pipe 06, thus preventing excessive water velocity from impacting the temperature measuring end of the thermocouple 02 and causing damage. The collected water then flows into the sedimentation chamber 04 below, where sediment is settled and trapped at the bottom, further reducing impurities in the water and preventing them from flowing into the temperature measuring chamber 05 and damaging the thermocouple 02. This also prevents impurities from affecting the accuracy of the thermocouple 02 in measuring water temperature, thus preventing detection errors. Finally, the water flows into the temperature measuring chamber 05 through the discharge pipe 06, where the thermocouple 02 is used to measure the temperature of the water. This allows for temperature measurement using the thermocouple 02 in deep water, reducing the adverse effects of the harsh underwater environment on the thermocouple 02 and improving the accuracy of deep-water temperature measurement.
[0052] Example 2
[0053] In this embodiment, when water is ejected from the outlet of the manifold 07, the water pressure in the deep water area is strong, causing the water to enter the manifold cavity 03 at a high speed. When the water flows against each other within the manifold cavity 03, the water near the top impacts the top of the manifold cavity 03 and cannot flow smoothly to the sedimentation cavity 04 below, thus affecting the efficiency of water intake. To guide the water ejected from the outlet of the manifold 07 downwards, specifically, this example uses a guide structure 08 at the top of the manifold cavity 03. When the water sprays towards the middle of the manifold cavity 03, the water at the bottom impacts each other towards the converging cone below, while the water at the top impacts the guide arc surface 080 corresponding to the outlet of each manifold 07. The guide arc surface 080 guides and redirects the water flow. This design ensures that the water jets from the three manifold pipes 07 are directed downwards, mitigating the impact force and reducing the flow velocity. The converging water then enters through the converging inlet 090, where the inclined sidewalls of the converging cone guide and collect some of the water that has scattered due to mutual counteracting impacts. This allows the water to flow out from the converging outlet 091 into the sedimentation chamber 04. This process achieves the convergence of water jets from multiple manifold pipes 07, reducing the impact force and flow velocity. It also prevents the thermocouple 02 from being damaged by excessively high-velocity water. Furthermore, the guiding structure 08 also redirects the water flow, preventing the upper water from stagnating in the upper part of the manifold chamber 03 and causing turbulence, which would otherwise result in low water intake efficiency.
[0054] It is worth noting that, to prevent sediment in the water body to be tested from entering the temperature measuring chamber 05 with the water flow, the manifold 07 in this example is specifically composed of multiple sections of straight infusion pipes 070 and intercepting bends 071 connected alternately. Furthermore, the inlet of the manifold 07 is located below the outlet of the manifold 07. When the water body to be tested enters through the inlet of the manifold 07, the water flows obliquely upwards along the return pipe. Heavier sediment will not be carried upwards by the water flow due to its own gravity. The water flows back from the inlet. When the water to be tested passes through the straight inlet pipe 070 and enters the intercepting bend pipe 071, some of the mud and sand carried by the water flow will be intercepted by the bend pipe. At the same time, the intercepting bend pipe 071 can also reduce the impact of the water flow by changing the direction of the water flow. Finally, by alternating the connection of multiple sections of straight inlet pipe 070 and intercepting bend pipe 071, the water flow is slowed down and some mud and sand is intercepted in the manifold pipe 07, thereby reducing the impact of impurities in the water on the temperature measurement of thermocouple 02.
[0055] Example 3
[0056] In this embodiment, when the water to be tested enters from the top surface of the sedimentation chamber 04, the water flow impacts the bottom surface and splits into two streams flowing towards both sides of the sedimentation chamber 04. Upon impacting the side walls of the sedimentation chamber 04, the water flow swirls upwards, carrying the mixed sediment to the surface, thus reducing the sedimentation effect. To further filter impurities in the water and reduce their impact on the temperature measurement of the thermocouple 02, specifically, in this example, the sedimentation chamber 04 is configured as a frustum-shaped chamber. When the water flows in two streams and impacts the side wall of the sedimentation chamber 04, the multi-layered interception steps 040 on the inner wall intercept the sludge and sand, reducing turbulence in the sedimentation chamber 04 and thus reducing the amount of sediment flowing to the surface. Finally, when the water in the sedimentation chamber 04 accumulates to a certain height, the water with fewer impurities at the surface flows out from the inlet of the discharge pipe 06 and into the temperature measuring chamber 05, achieving further filtration of impurities in the water.
[0057] It should be noted that, in order to prevent a large amount of silt or aquatic organisms from entering the manifold 07 or the discharge pipe 06 and causing blockage, this example specifically uses a barrier net 10 at the inlet of the manifold 07 and a filter net 11 at the inlet of the discharge pipe 06. The barrier net 10 is used to block the entry of foreign objects and avoid blockage. At the same time, the mesh size of the filter net 11 is smaller than that of the barrier net 10. The gradually increasing barrier effect can reduce the obstruction of water flow, improve the efficiency of water intake, and filter and intercept impurities and foreign objects in the water.
[0058] Example 4
[0059] In this embodiment, to ensure that the temperature measuring device reaches the corresponding temperature measuring depth before taking temperature measurements, a solenoid valve 12 is installed at the inlet of the manifold 07. The solenoid valve 12 is used to control the opening and closing of the manifold 07, enabling remote or automated control of the manifold 07. This prevents upper water from entering the temperature measuring device during the settling process, thus avoiding the situation where upper water remains in the temperature measuring device when it reaches the corresponding temperature measuring depth, affecting the temperature measurement and causing errors in the measurement results.
[0060] It is worth noting that when water enters the hollow chamber 01, the water flow forces the air inside the hollow chamber 01 into the temperature measuring chamber 05, causing the air pressure inside the temperature measuring chamber 05 to increase. When the amount of water entering reaches a certain level, the internal air pressure will equal the external water pressure. If the depth of the water being measured is insufficient, the liquid level of the water to be measured inside the temperature measuring chamber 05 will not reach the preset detectable value, thus preventing the thermocouple 02 from measuring the water. Therefore, in this example, a pressure relief valve 13 is provided on the outside of the hollow chamber 01. The pressure relief valve 13 is connected to the temperature measuring chamber 05 through an exhaust pipe. When the liquid level of the water to be measured inside the temperature measuring chamber 05 does not reach the preset detectable value, the pressure relief valve 13 will release some of the air pressure inside the temperature measuring chamber 05, allowing the water to continue entering the temperature measuring chamber 05, so that the thermocouple 02 can measure the temperature of the water.
[0061] It should be noted that, in order to avoid the water entering the temperature measuring chamber 05 and impacting the thermocouple 02, thus causing damage, the outlet of the discharge pipe 06 is specifically located on the side wall of the temperature measuring chamber 05, close to the bottom surface of the temperature measuring chamber 05. This ensures that the water entering the temperature measuring chamber 05 can only rise from bottom to top, and the measuring end of the thermocouple 02 is positioned above the outlet of the discharge pipe 06, preventing the water from directly impacting the thermocouple 02 and thus damaging it.
[0062] In another aspect, this application provides a temperature measuring device control system, comprising:
[0063] The aforementioned deep-water thermocouple 02 temperature measuring device, as well as control module 14, air pressure sensor 15, liquid level sensor 16 and hydraulic sensor 17;
[0064] The pressure sensor 15 is located on the top surface inside the temperature measuring cavity 05, the hydraulic sensor 17 is located on the outer wall of the hollow box 01, the liquid level sensor 16 is located on the inner side of the temperature measuring cavity 05, and the liquid level sensor 16 is located above the thermocouple 02. The control module 14 is electrically connected to the pressure relief valve 13, the solenoid valve 12, the pressure sensor 15, the liquid level sensor 16 and the hydraulic sensor 17 respectively.
[0065] When the hydraulic pressure outside the hollow box 01 reaches a preset value, the hydraulic sensor 17 sends a first signal to the control module 14, and the control module 14 controls the switch solenoid valve 12 to open according to the first signal;
[0066] When the air pressure inside the temperature measuring chamber 05 reaches a preset value, the air pressure sensor 15 sends a second signal to the control module 14, and the control module 14 controls the pressure relief valve 13 to open according to the second signal;
[0067] When the liquid level in the temperature measuring chamber 05 reaches a preset value, the liquid level sensor 16 sends a third signal to the control module 14, and the control module 14 controls the switch solenoid valve 12 to close according to the third signal.
[0068] Example 5
[0069] In this embodiment, to achieve automated control of the deep-water thermocouple 02 temperature measuring device, specifically, a control module 14, a pressure sensor 15, a liquid level sensor 16, and a hydraulic sensor 17 are set in the temperature measuring device. The pressure sensor 15 is installed on the top surface inside the temperature measuring chamber 05 to sense changes in air pressure within the chamber. The hydraulic sensor 17 is then installed on the outer wall of the hollow box 01 to sense the hydraulic pressure of the water in the deep-water area where the hollow box 01 is located. The liquid level sensor 16 is installed on the inner side of the temperature measuring chamber 05 to sense the water level height within the chamber. The operator can pre-set the hydraulic pressure of the water in the area to be measured on the hydraulic sensor 17. When the temperature measuring device sinks into the measuring area, the hydraulic sensor 17 senses that the hydraulic pressure has reached the preset value and sends a first signal to the control module 14. The control module 14 then responds according to the first signal. The control switch solenoid valve 12 opens, allowing the water to flow into the temperature measuring device. Then, when the air pressure sensor 15 senses that the air pressure inside the temperature measuring chamber 05 reaches the same level as the hydraulic pressure sensor 17, the pressure sensor sends a second signal to the control module 14. The control module 14, based on the second signal, controls the pressure relief valve 13 to open, releasing some air and reducing the air pressure inside the temperature measuring chamber 05. This prevents the water level inside the temperature measuring chamber 05 from failing to reach the preset measurable height. When the water level inside the temperature measuring chamber 05 reaches the preset value, the liquid level sensor 16 sends a third signal to the control module 14. The control module 14, based on the third signal, controls the switch solenoid valve 12 to close, stopping the water flow and preventing the water flow from affecting the accuracy of the temperature measurement, thus preventing errors in the measurement results. Ultimately, this achieves automated control of the deep-sea thermocouple 02 temperature measuring device, enabling automated control of the water flow and improving the efficiency and accuracy of temperature measurement.
[0070] The solution of this application has been described in detail above with reference to the accompanying drawings. In the above embodiments, the descriptions of each embodiment have different focuses; for parts not described in detail in a certain embodiment, please refer to the relevant descriptions of other embodiments. Those skilled in the art should also understand that the actions and modules involved in the specification are not necessarily essential to this application. Furthermore, it is understood that the steps in the method of this application embodiment can be adjusted, combined, and deleted according to actual needs, and the structure in the device of this application embodiment can be combined, divided, and deleted according to actual needs.
[0071] The various embodiments of this application have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen to best explain the principles, practical application, or improvement of the technology in the market, or to enable others skilled in the art to understand the embodiments disclosed herein.
Claims
1. A deep-sea thermocouple temperature measuring device, characterized in that, include: Hollow housing and thermocouples; The hollow housing is equipped with a manifold, a sedimentation chamber, and a temperature measuring chamber. The sedimentation chamber is located directly below the manifold and is connected to it. The thermocouple is installed in the temperature measuring chamber and is used to detect the water temperature inside the temperature measuring chamber. The hollow box is further provided with a discharge pipe and N manifolds inside. The inlet of the discharge pipe is connected to the sedimentation chamber, and the outlet of the discharge pipe is connected to the temperature measuring chamber. N is an integer greater than 1. The inlet of the manifold is located on the outside of the hollow box, and the outlet of the manifold is connected to the manifold cavity. The outlets of the N manifolds are all symmetrical about the center of the midpoint of the manifold cavity. The top of the manifold is provided with a guide structure, which has N guide arc surfaces. The guide structure is located at the center of the top of the manifold. The N guide arc surfaces are all symmetrical about the center of the top of the manifold. Each outlet of the manifold corresponds to one guide arc surface. The intersection of the N guide arc surfaces is located on the central axis of the manifold. The inside of the manifold cavity is also provided with a converging cone, which is located directly below the guide structure. The central axis of the converging cone coincides with the midpoint of the manifold cavity. The converging cone is provided with a converging inlet and a converging outlet, wherein the aperture of the converging inlet is larger than the aperture of the converging outlet, and the converging outlet is connected to the sedimentation cavity. The inlet of the manifold is located below the outlet of the manifold. The manifold is composed of several sections of straight infusion pipes and several sections of intercepting bends that are interconnected, and the straight infusion pipes and the intercepting bends are arranged alternately. The intercepting bends are used to slow down the flow rate of water carrying silt. The sedimentation chamber is shaped like a frustum, with the top surface area smaller than the bottom surface area. The sedimentation chamber includes several layers of interception steps, which are evenly arranged on the inner wall of the sedimentation chamber. The inlet of the discharge pipe is located on the side wall of the sedimentation chamber, and the inlet of the discharge pipe is located on the side closer to the top surface of the sedimentation chamber.
2. The deep-sea thermocouple temperature measuring device according to claim 1, characterized in that, The inlet of the manifold is equipped with a barrier screen, and the inlet of the outlet is equipped with a filter screen, the mesh size of which is smaller than that of the barrier screen.
3. The deep-sea thermocouple temperature measuring device according to claim 1, characterized in that, The inlet of the manifold is equipped with a solenoid valve, which is used to control the connection or closure of the manifold.
4. The deep-sea thermocouple temperature measuring device according to claim 3, characterized in that, The hollow box is equipped with a pressure relief valve on its outer side. The pressure relief valve is connected to the temperature measuring chamber through an exhaust pipe. The air inlet of the exhaust pipe is located on the top surface of the temperature measuring chamber.
5. The deep-sea thermocouple temperature measuring device according to claim 1, characterized in that, The outlet of the discharge pipe is located on the side wall of the temperature measuring cavity, and the outlet of the discharge pipe is located on the side close to the bottom surface of the temperature measuring cavity. The thermocouple is fixed on the top surface of the temperature measuring cavity, and the temperature measuring end of the thermocouple is located above the outlet of the discharge pipe.
6. A temperature measuring device control system, characterized in that, include: The deep-sea thermocouple temperature measuring device as described in claim 4, as well as the control module, air pressure sensor, liquid level sensor and hydraulic sensor; The air pressure sensor is located on the top surface of the temperature measuring cavity, the hydraulic sensor is located on the outer wall of the hollow box, the liquid level sensor is located on the inner side of the temperature measuring cavity, and the liquid level sensor is located above the thermocouple. The control module is electrically connected to the pressure relief valve, the solenoid valve, the air pressure sensor, the liquid level sensor, and the hydraulic sensor, respectively. When the hydraulic pressure outside the hollow box reaches a preset value, the hydraulic sensor sends a first signal to the control module, and the control module controls the switch solenoid valve to open according to the first signal; When the air pressure inside the temperature measuring chamber reaches a preset value, the air pressure sensor sends a second signal to the control module, and the control module controls the pressure relief valve to open according to the second signal; When the liquid level in the temperature measuring chamber reaches a preset value, the liquid level sensor sends a third signal to the control module, and the control module controls the switch solenoid valve to close according to the third signal.