CN113959600A - Heat source detection device and method - Google Patents
Heat source detection device and method Download PDFInfo
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- CN113959600A CN113959600A CN202111194694.3A CN202111194694A CN113959600A CN 113959600 A CN113959600 A CN 113959600A CN 202111194694 A CN202111194694 A CN 202111194694A CN 113959600 A CN113959600 A CN 113959600A
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- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K15/00—Testing or calibrating of thermometers
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Abstract
The invention relates to a heat source detection device and a method thereof. The heating zone is used for heating the working medium. The heating zone is communicated with the detection zone through an air inlet, and the heated working medium enters the detection zone through the air inlet. Three working tubes are arranged in the detection area and are arranged at equal intervals, the diameter of each working tube is 45-55 mm, and the height of each working tube is 450-500 mm. The top end of the heat dissipation area is communicated with the detection area through an air outlet pipe, so that the working medium in the detection area enters the heat dissipation area. The heat dissipation area is used for dissipating heat for the working medium and reflows to the heating area from the bottom end of the heat dissipation area through the backflow pipe. The height which can be detected is 0-20mm and 0-200mm, the detection height range is large, the detection temperature is 200-500 ℃, and meanwhile, the working tubes are all arranged in the closed detection metal tube, so that the occurrence of danger is avoided in the detection process.
Description
Technical Field
The invention relates to the technical field of heat source detection, in particular to a heat source detection device and a heat source detection method.
Background
The heat source detection device is used for detecting the temperature sensor. The temperature in the heat source detecting device is set to a specified temperature range, then the temperature sensor is set in the temperature range, and then whether the temperature detected by the temperature sensor is consistent with or similar to the temperature in the temperature range set by the heat source detecting device is observed. Whether the detection data of the temperature sensor is accurate or not is detected in the above mode, and whether the detection precision of the temperature sensor reaches the standard or not is judged;
the current heat source detection device mainly comprises the following three modes:
firstly, the method comprises the following steps: in the dry body furnace type detection, the detection temperature field height of a detection area is only 130mm, and the application of the dry body furnace type detection temperature field height is limited due to the limitation of the detection height.
Secondly, the method comprises the following steps: and (3) detecting an oil groove, wherein the working medium of the oil groove is cylinder oil or silicon oil, and the detection temperature is less than 300 ℃. The heat loss is large, the generated oil smoke can cause pollution to the environment, and the heating wires are easy to cause fire in the oil.
Thirdly, the method comprises the following steps: detection in salt groove, the detection medium in salt groove is mixture sodium nitrate and potassium nitrate, and salt groove detection device produces proton collision can appear proton and splash about the proton when the heating, can bring certain danger to operational environment.
The three modes of detection mainly have the defects that the detection height of a detection area is limited, the detection temperature is low, and certain dangerousness is accompanied in the detection.
Disclosure of Invention
Technical problem to be solved
In view of the above-mentioned drawbacks and deficiencies of the prior art, the present invention provides a heat source detection device that solves the technical problems of limited detection height, low detection temperature, and associated risk during detection.
(II) technical scheme
In order to achieve the purpose, the invention adopts the main technical scheme that:
in a first aspect, the present invention provides a heat source detecting device, comprising a heating region, a detection region and a heat dissipation region;
the heating zone is used for heating a working medium;
the heating area is positioned below the detection area and is communicated with the detection area through an air inlet, and the heated working medium enters the detection area through the air inlet;
three working tubes are arranged in the detection area at equal intervals, the inner diameter of each working tube is 45-55 mm, and the height of each working tube is 450-500 mm;
the heat dissipation area is sleeved outside the detection area, and the top end of the heat dissipation area is communicated with the detection area through an air outlet pipe, so that the working medium in the detection area enters the heat dissipation area to dissipate heat, and the working medium is condensed from a gas state to a liquid state;
the lower end of the heat dissipation area is communicated with the bottom of the heating area through a return pipe, so that the liquid working medium flows back to the heating area from the heat dissipation area.
Optionally, the working tube has an inner diameter of 50 mm.
Optionally, the height of three of said working tubes is 460 mm.
Optionally, the heating zone comprises a heating chamber and a heating ring;
the heating cavity is internally provided with the working medium, the top end of the heating cavity is provided with a plurality of air inlets, and the bottom end of the heating cavity is provided with a medium inlet for communicating with the external working medium;
the heating ring is positioned in the heating chamber and used for heating the working medium in the heating chamber.
Optionally, the heating zone further comprises a constant temperature control assembly disposed within the heating chamber, the constant temperature control assembly being configured to control a temperature within the heating chamber to be constant.
Optionally, the detection area is formed by a detection metal pipe and three working pipes, the three working pipes are arranged inside the detection metal pipe at equal intervals, the detection area is formed between the inside of the detection metal pipe and the outside of the three working pipes, and the three working pipes are used for accommodating a sensor to be detected.
Optionally, three the working tube is arranged in equilateral triangle array, and is three the working tube forms the detection portion, the periphery bottom fixedly connected with curb plate of detection portion.
Optionally, the detection metal pipe is sleeved with a heat preservation cotton layer, and the heat preservation cotton layer extends downwards to the outside of the heating zone.
Optionally, the heat dissipation area is formed by sleeving a heat dissipation metal inner pipe and a heat dissipation metal outer pipe;
the heat dissipation metal inner pipe is sleeved outside the heat insulation cotton layer;
the heat dissipation metal outer pipe cover is arranged outside the heat dissipation metal inner pipe, and a heat dissipation area is formed between the inside of the heat dissipation metal outer pipe and the outside of the heat dissipation metal inner pipe.
In a second aspect, a sensor detection method is based on the heat source detection device, and the method mainly includes the following steps:
s1, introducing a liquid working medium into the heating area;
s2, heating the liquid working medium in the step S1 through a heating zone, so that the working medium is heated from the liquid state to be in a gas state;
s3, the gaseous working medium enters the detection area through the air inlet in the step S2, so that the detection area reaches the preset temperature field temperature;
s4, placing the sensor into the working tube, calculating the maximum temperature field temperature difference through the temperature displayed by the sensor and the preset temperature field temperature in the step S3, and judging the detection precision of the sensor according to the maximum temperature field temperature difference.
(III) advantageous effects
The invention has the beneficial effects that: the invention relates to a heat source detection device and a method thereof.A working medium is heated by a heating zone in a closed detection zone by adopting three working tubes, so that the working medium is heated from a liquid state to a gas state, the gas working medium enters the detection zone through an air inlet hole, so that the temperature field temperature of the detection zone reaches a preset range, and the purpose of detecting the performance of a sensor is further achieved by comparing the temperature value displayed by a sensor in the working tube with the set temperature field temperature. Compared with other detection devices, the detection device has the advantages that the detection height ranges from 0mm to 20mm and from 0mm to 200mm are large, the detection temperature can be 200 ℃ and 500 ℃, meanwhile, the working pipes are arranged in the closed detection metal pipes, and the occurrence of danger is avoided in the detection process. The detection requirements of most sensors are basically met. The invention has three working pipes, the diameter of each working pipe is 45-50 mm, and the detection precision, namely the maximum temperature field temperature difference can reach 0.01 ℃ on the premise that the diameter of each working pipe is 45-50 mm.
Drawings
FIG. 1 is a schematic cross-sectional front view of a heat source detecting device according to the present invention;
FIG. 2 is a schematic top sectional view of a heat source detecting device according to the present invention.
[ description of reference ]
1: a working pipe; 2: an air outlet pipe; 3: an air inlet; 4: a return pipe; 5: a heating chamber; 6: heating a ring; 7: a media inlet; 8: a platinum resistance temperature control tube; 9: detecting the metal tube; 10: a heat insulation cotton layer; 11: a heat dissipation metal inner tube; 12: a heat-dissipating metal outer tube; 100: a heating zone; 200: a detection zone; 300: a heat dissipation area.
Detailed Description
For the purpose of better explaining the present invention and to facilitate understanding, the present invention will be described in detail by way of specific embodiments with reference to the accompanying drawings. The side of fig. 1 where the outlet pipe 2 is located is defined as "up".
At present, requirements on use and detection accuracy of a special-shaped sensor and a short sensor on a high-speed rail and an airplane are increasing day by day, requirements on detection accuracy and detection temperature of a temperature sensor used on the high-speed rail and the airplane are high, detection temperature is short, detection temperature range is wide, and particularly a detection device with a detection temperature field height of 0-20mm and 0-200mm cannot meet market requirements.
Example 1:
referring to fig. 1-2, a heat source detecting device according to an embodiment of the present invention includes a heating area 100, a detection area 200, and a heat dissipation area 300.
The heating zone 100 is used to heat a working medium.
Further, the heating zone 100 includes a heating chamber 5 and a heating ring 6.
Working medium is arranged in the heating chamber 5, the top end of the heating chamber 5 is provided with a plurality of air inlets 3, the bottom end of the heating chamber 5 is provided with a medium inlet 7 used for communicating external working medium, and the external working medium enters the heating chamber 5 through the medium inlet 7. The working medium in the heating chamber 5 is heated by the heating ring 6.
A heating coil 6 is located in the heating chamber 5 for heating the working medium in the heating chamber 5.
The heating zone 100 is located below the detection zone 200, and is communicated with the detection zone 200 through an air inlet 3, and the heated working medium enters the detection zone 200 through the air inlet 3.
Further, the heating zone 100 further comprises a thermostatic control assembly disposed in the heating chamber 5, and the thermostatic control assembly is used for controlling the temperature inside the heating chamber 5 to be constant.
Specifically, the thermostatic control assembly includes platinum resistance accuse temperature pipe 8 and the thermometer that links to each other through the wire with platinum resistance accuse temperature pipe 8, and the thermometer sets up in heat source detection device's outside, and the people of being convenient for observe the temperature of heating chamber 5 at any time. And selecting the platinum resistance temperature control tube 8 with proper precision according to the JJG 160-2007 standard platinum resistance thermometer verification procedure. The platinum resistance temperature control tube 8 can accurately detect the temperature in the heating chamber 5, and then the temperature detected by the platinum resistance temperature control tube is accurately displayed through a thermometer.
It should be noted that, when the temperature field temperature of the detection region 200 is set to 300 ℃, the working medium in the heating region 100 is heated by the heating ring 6, until the thermometer of the platinum resistance temperature control tube 8 shows 300 ℃, the heating ring 6 stops heating, the working medium is in a gaseous state and flows into the detection region 200 through the air inlet 3, so that the temperature in the detection region 200 is controlled to 300 ℃, and when the heat source detection device is used for 2 hours or longer, the temperature of the heating chamber 5 is reduced to a certain extent due to an excessively long time. When the temperature of the heating chamber 5 is decreased, that is, the temperature indicated by the thermometer is lower than the preset temperature field temperature of 300 ℃, the controller in the thermometer sends out a control command to compensate the temperature of the heating chamber 5, so that the working medium in the heating chamber 5 reaches a constant temperature and enters the detection zone 200. So that the temperature of the gaseous working medium, and thus the temperature of the thermal field entering the detection zone 200 through the air inlet 3, is controlled to be constant. Thereby making the detection precision of the sensor more accurate.
Further, the detection zone 200 is formed by the detection metal tube 9 and the three working tubes 1. Specifically, the inner diameter of the detection metal pipe 9 was 168 mm. The equidistant setting of three working tube 1 is in the inside that detects metal tube 9, detects and forms detection zone 200 between the inside of metal tube 9 and the outside of three working tube 1, is provided with the gaseous state working medium who circulates from the heating zone 100 via air inlet 3 in the detection zone 200 to the temperature field temperature in making detection zone 200 is a definite value. Wherein the temperature of the temperature field in the detection zone 200 is controlled by a platinum resistance temperature controlled tube 8. Three working pipes 1 are welded at equal intervals inside the detection metal pipe 9, and the three working pipes 1 are used for accommodating special-shaped sensors or short-shaped sensors on domestic high-speed rails and airplanes. And the three sensors are connected with an external thermometer for displaying temperature through a lead, so that people can directly read out the detection temperature value of the sensors conveniently, further, the temperature value detected by the sensors is compared with the temperature field temperature to obtain the difference value between the two, and the difference value is used as the temperature difference of the temperature field.
The three working pipes 1 are also made of metal pipes. Therefore, the heat source detection device is made of metal tubes, and is convenient to produce and manufacture.
Further, three working tubes 1 are arranged in an equilateral triangle array, the three working tubes 1 form a detection part, and a side plate is welded at the bottom of the periphery of the detection part. The inner diameters of the three working pipes 1 are all 50mm, and the heights of the three working pipes 1 are all 460 mm.
It should be noted that the side plates are provided to prevent the work pipe 1 from being inclined due to height during installation, and thus, the side plates perform good guiding and positioning during installation.
Further, the outer sleeve of the detection metal pipe 9 is provided with a heat preservation cotton layer 10, and the heat preservation cotton layer 10 extends downwards to the outside of the heating area 100. The insulating cotton layer 10 can prevent the temperature of the gaseous working medium in the detection area 200 inside the detection metal pipe 9 from being kept as constant as possible.
The heat dissipation area 300 is sleeved outside the detection area 200, and the top end of the heat dissipation area 300 is communicated with the detection area 200 through the air outlet pipe 2, so that the working medium of the detection area 200 enters the heat dissipation area 300 to dissipate heat, and the working medium is condensed into a liquid state by a gas state.
Further, the heat dissipation area 300 is formed by sleeving a heat dissipation metal inner tube 11 and a heat dissipation metal outer tube 12 which are coaxially arranged at equal heights.
The heat dissipation metal inner pipe 11 is sleeved outside the heat insulation cotton layer 10. The heat dissipation metal outer tube 12 is disposed outside the heat dissipation metal inner tube 11, and a heat dissipation area 300 is formed between the inside of the heat dissipation metal outer tube 12 and the outside of the heat dissipation metal inner tube 11. The heat dissipation region 300 is used to dissipate heat from the working medium entering from the detection region 200 through the outlet pipe 2.
The lower end of the heat radiating section 300 communicates with the bottom of the heating section 100 through the return pipe 4, so that the working medium in a liquid state is returned from the heat radiating section 300 to the heating section 100.
Furthermore, two ends of the air outlet pipe 2 are detachably connected with the detection metal pipe 9 and the heat dissipation area 300 respectively. Preferably, sealing structures are provided at both ends of the outlet pipe 2, and the sealing structures include sealing rings, which are not specifically limited in this application.
It should be noted that, the two ends of the air outlet pipe 2, the detection metal pipe 9 and the heat dissipation area 300 are detachably connected to facilitate the detachment of the air outlet pipe 2, so as to facilitate the subsequent maintenance and cleaning processes of the air outlet pipe 2. Through the setting of sealing washer, strengthened whole detection device's sealing performance.
Further, the two ends of the oil return pipe 4 are also detachably connected with the heating chamber 5 and the heat dissipation area 300. Preferably, sealing structures are arranged at two ends of the oil return pipe 4, and the sealing structures comprise sealing rings, which are not specifically limited in this application. The function and effect achieved by the air outlet pipe are the same as those of the air outlet pipe 2.
Specifically, the radial directions of the sealing ring arranged on one side of the air outlet pipe 2 close to the metal detection pipe 9 and the sealing ring arranged on one side of the oil return pipe 4 close to the heating chamber 5 are vertical, and in the using process, because the air outlet pipe 2 and the oil return pipe 4 have gas or liquid flowing, lifting devices are arranged at the sealing rings at the positions, and the lifting devices are used for preventing the sealing rings at the positions from being pressed and deformed due to gravity.
Further, hoisting device includes that elasticity promotes the circle, elasticity promotes the circle and is provided with the buckle in the one side that is close to detection tubular metal resonator 9, has seted up the draw-in groove correspondingly on detecting tubular metal resonator 9 for promote the circle joint with elasticity. Preferably, an annular sealing gasket is arranged between the elastic lifting ring and the detection metal pipe 9, and the diameter of the sealing gasket is larger than that of the sealing ring, so that the sealing effect of the detection device is further enhanced.
Example 2:
the difference from example 1 is the inner diameter of the three working tubes 1. The method specifically comprises the following steps: the inner diameters of the three working pipes 1 are all 48mm, and the heights of the three working pipes 1 are all 450 mm.
Example 3:
the difference from example 1 is the diameter of the three working tubes 1. The method specifically comprises the following steps: the inner diameters of the three working pipes 1 are all 52mm, and the heights of the three working pipes 1 are all 480 mm.
Example 4:
the difference from example 1 is the diameter of the three working tubes 1. The method specifically comprises the following steps: the inner diameters of the three working pipes 1 are all 50mm, and the heights of the three working pipes 1 are all 500 mm.
Example 5:
the difference from example 1 is the diameter of the three working tubes 1. The method specifically comprises the following steps: the inner diameters of the three working pipes 1 are all 45mm, and the heights of the three working pipes 1 are all 460 mm.
Example 6:
the difference from example 1 is the diameter of the three working tubes 1. The method specifically comprises the following steps: the diameters of the three working pipes 1 are all 55mm, and the heights of the three working pipes 1 are all 460 mm.
Example 7:
the height of the heat dissipation area 300 (i.e., the height of the inner metal heat dissipation pipe 11 and the outer metal heat dissipation pipe 12) is defined as Y, and the diameter of the heat dissipation area 300 (i.e., the inner diameter of the outer metal heat dissipation pipe 12) is defined as X. Under the condition that the inner diameter and the height of the detection metal tube 9 of the detection area 200 are unchanged and the detected sensors are the same, the height and the diameter of the heat dissipation area 300 are divided into six different groups of parameters for testing, and the specific test results are as follows:
a first group:
firstly, the diameter X of a heat dissipation area 300 is selected to be 418mm, the height Y of the heat dissipation area 300 is selected to be 400mm, then, the liquid working medium in the heating area is heated to be in a gas state through a heating ring 6 of the heating area 100, the temperature of the heating area 100 is detected through a platinum resistance temperature control tube 8, the adding is stopped when the temperature reaches 300 ℃, meanwhile, the gas working medium enters a detection metal tube 9 through an air inlet 3 to enable the temperature in a detection area 200 to reach 300 ℃, then, 3 identical sensors are respectively placed into three working tubes 1 with the inner diameter of 50mm for detection, wherein the height detected by the three working tubes 1 through the detection area 200 is 200mm, finally, the temperature detected by the 3 identical sensors is obtained, and the temperature difference of the temperature field in the first group of experiments is calculated to be 0.3 ℃ through the technical performance test specification of the JJF 1030 and 2010 constant temperature bath.
Second group:
firstly, the diameter X of a heat dissipation area 300 is selected to be 418mm, the height Y of the heat dissipation area 300 is selected to be 350mm, then, the liquid working medium in the heating area is heated to be in a gas state through a heating ring 6 of the heating area 100, the temperature of the heating area 100 is detected through a platinum resistance temperature control tube 8, the adding is stopped when the temperature reaches 300 ℃, meanwhile, the gas working medium enters a detection metal tube 9 through an air inlet 3 to enable the temperature in a detection area 200 to reach 300 ℃, then, 3 identical sensors are respectively placed into three working tubes 1 with the inner diameter of 50mm for detection, wherein the height detected by the three working tubes 1 through the detection area 200 is 200mm, finally, the temperature detected by the 3 identical sensors is obtained, and the temperature difference of the temperature field in the second group of experiments is calculated to be 0.25 ℃ through the technical performance test specification of the JJF 1030-2010 thermostatic bath.
Third group:
firstly, the diameter X of a heat dissipation area 300 is selected to be 308mm, the height Y of the heat dissipation area 300 is selected to be 400mm, then, a liquid working medium in the heating area is heated to be in a gas state through a heating ring 6 of the heating area 100, the temperature of the heating area 100 is detected through a platinum resistance temperature control tube 8, the adding is stopped when the temperature reaches 300 ℃, meanwhile, the gas working medium enters a detection metal tube 9 through an air inlet 3 to enable the temperature in a detection area 200 to reach 300 ℃, then, 3 identical sensors are respectively placed into three working tubes 1 with the inner diameter of 50mm for detection, wherein the height detected by the three working tubes 1 through the detection area 200 is 200mm, finally, the temperature detected by the 3 identical sensors is obtained, and the temperature difference of the temperature field of a third group of experiments is calculated to be 0.16 ℃ through the technical performance test specification of the JJF 1030 and 2010 constant temperature bath.
And a fourth group:
firstly, the diameter X of a heat dissipation area 300 is selected to be 308mm, the height Y of the heat dissipation area 300 is selected to be 350mm, then, a liquid working medium in the heating area is heated to be in a gas state through a heating ring 6 of the heating area 100, the temperature of the heating area 100 is detected through a platinum resistance temperature control tube 8, the adding is stopped when the temperature reaches 300 ℃, meanwhile, the gas working medium enters a detection metal tube 9 through an air inlet 3 to enable the temperature in a detection area 200 to reach 300 ℃, then, 3 identical sensors are respectively placed into three working tubes 1 with the inner diameter of 50mm for detection, wherein the height detected by the three working tubes 1 through the detection area 200 is 200mm, finally, the temperature detected by the 3 identical sensors is obtained, and the temperature difference of the temperature field of the fourth group of experiments is calculated to be 0.02 ℃ through the technical performance test specification of the JJF 1030 and 2010 constant temperature bath.
And a fifth group:
firstly, the diameter X of a heat dissipation area 300 is selected to be 268mm, the height Y of the heat dissipation area 300 is selected to be 400mm, then, a liquid working medium in the heating area is heated to be in a gas state through a heating ring 6 of the heating area 100, the temperature of the heating area 100 is detected through a platinum resistance temperature control tube 8, the adding is stopped when the temperature reaches 300 ℃, meanwhile, the gas working medium enters a detection metal tube 9 through an air inlet 3 to enable the temperature in a detection area 200 to reach 300 ℃, then, 3 identical sensors are respectively placed into three working tubes 1 with the inner diameter of 50mm for detection, wherein the height detected by the three working tubes 1 through the detection area 200 is 200mm, finally, the temperature detected by the 3 identical sensors is obtained, and the temperature difference of the temperature field in the fifth group of experiments is calculated to be 0.12 ℃ through the technical performance test specification of the JJF 1030 and 2010 constant temperature bath.
A sixth group:
firstly, the diameter X of a heat dissipation area 300 is selected to be 418mm, the height Y of the heat dissipation area 300 is selected to be 400mm, then, the liquid working medium in the heating area is heated to be in a gas state through a heating ring 6 of the heating area 100, the temperature of the heating area 100 is detected through a platinum resistance temperature control tube 8, the adding is stopped when the temperature reaches 300 ℃, meanwhile, the gas working medium enters a detection metal tube 9 through an air inlet 3 to enable the temperature in a detection area 200 to reach 300 ℃, then, 3 identical sensors are respectively placed into three working tubes 1 with the inner diameter of 50mm for detection, wherein the height detected by the three working tubes 1 through the detection area 200 is 200mm, finally, the temperature detected by the 3 identical sensors is obtained, and the temperature difference of the temperature field of a sixth group of experiments is calculated to be 0.18 ℃ through the technical performance test specification of the JJF 1030-2010 thermostatic bath.
The test results obtained under the parameters of the six different sets of heat dissipation areas 300 are that the heat dissipation effect of the fourth set of tests is the best, i.e. the fourth set is the best heat dissipation area 300. Thus, the height of the heat dissipation area 300 is chosen to be 350mm and the diameter is chosen to be 308 mm.
Example 8:
a sensor detection method is a heat source detection device based on the method, and the method mainly comprises the following steps:
s1, the heating area 100 is introduced into the heating chamber 5 through the medium inlet 7.
S2, the liquid working medium is heated in step S1 by the heating ring 6 of the heating area 100, so that the working medium is heated from the liquid state to the gas state.
S3, the gaseous working medium enters the detection zone 200 through the air inlet 3 in step S2, so that the detection zone 200 reaches the preset temperature field temperature.
S4, placing the sensors to be detected into the working tube 1, calculating the maximum temperature field temperature difference according to the temperature displayed by the sensors and the preset temperature field temperature in the step S3, and judging the detection precision of the sensors according to the maximum temperature field temperature difference.
The calculation of the maximum temperature field temperature difference is obtained according to the national standard JJ2030-2010 constant temperature die test specification, and specifically, the following table 1 is referred to through comparison tables of the temperature field temperature differences of the heat source detection device, the oil groove detection device and the dry body furnace detection device of the invention at a certain temperature and the detection height of the detection area respectively:
table 1: comparison of maximum temperature field temperature difference between the invention and other two different heat source detection devices
In summary, in the invention, the maximum temperature field temperature difference index meets the relevant national regulations under the detection heights of 0-20mm and 0-200mm, compared with other detection devices, the detection heights of 0-20mm and 0-200mm are larger, the detection temperature can be 200-500 ℃, and the working pipes 1 are in the closed detection metal pipes 9, so that the occurrence of danger is avoided in the detection process. The detection requirements of most sensors are basically met. According to the invention, the three working pipes 1 are arranged, and the diameter of each working pipe 1 is 50mm, so that the detection precision, namely the maximum temperature field temperature difference can reach 0.01 ℃ on the premise that the diameter of each working pipe 1 is 50 mm.
The heat source detection device is a temperature detection device with great development prospect on the structural design of the working tube 1 with 3 holes-50 mm, and relevant reports at home and abroad are not seen.
In the description of the present invention, it is to be understood that the terms "first", "second" and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium; either as communication within the two elements or as an interactive relationship of the two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, a first feature may be "on" or "under" a second feature, and the first and second features may be in direct contact, or the first and second features may be in indirect contact via an intermediate. Also, a first feature "on," "above," and "over" a second feature may be directly or obliquely above the second feature, or simply mean that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the second feature, or may simply mean that the first feature is at a lower level than the second feature.
In the description herein, the description of the terms "one embodiment," "some embodiments," "an embodiment," "an example," "a specific example" or "some examples" or the like, means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Although embodiments of the present invention have been shown and described above, it should be understood that the above embodiments are illustrative and not restrictive, and that those skilled in the art may make changes, modifications, substitutions and alterations to the above embodiments without departing from the scope of the present invention.
Claims (10)
1. A heat source detecting device characterized in that: comprises a heating area (100), a detection area (200) and a heat dissipation area (300);
the heating zone (100) is used for heating a working medium;
the heating area (100) is positioned below the detection area (200) and is communicated with the detection area (200) through an air inlet (3), and the heated working medium enters the detection area (200) through the air inlet (3);
three working tubes (1) are arranged in the detection area (200), the three working tubes (1) are arranged at equal intervals, the inner diameter of each working tube (1) is 45-55 mm, and the height of each working tube (1) is 450-500 mm;
the heat dissipation area (300) is sleeved outside the detection area (200), and the top end of the heat dissipation area (300) is communicated with the detection area (200) through an air outlet pipe (2), so that a working medium of the detection area (200) enters the heat dissipation area (300) for heat dissipation, and the working medium is condensed from a gas state to a liquid state;
the lower end of the heat dissipation area (300) is communicated with the bottom of the heating area (100) through a return pipe (4), so that the liquid working medium flows back to the heating area (100) from the heat dissipation area (300).
2. A heat source detecting device according to claim 1, wherein: the inner diameter of the working pipe (1) is 50 mm.
3. A heat source detecting device according to claim 1, wherein: the height of the three working pipes (1) is 460 mm.
4. A heat source detecting device according to claim 1, wherein: the heating zone (100) comprises a heating chamber (5) and a heating ring (6);
the heating chamber (5) is internally provided with the working medium, the top end of the heating chamber (5) is provided with a plurality of air inlets (3), and the bottom end of the heating chamber (5) is provided with a medium inlet (7) for communicating with an external working medium;
the heating ring (6) is positioned in the heating chamber (5) and is used for heating the working medium in the heating chamber (5).
5. A heat source detecting device according to claim 4, wherein: the heating area (100) further comprises a constant temperature control assembly arranged in the heating chamber (5), and the constant temperature control assembly is used for controlling the temperature in the heating chamber (5) to be constant.
6. A heat source detecting device according to claim 1, wherein: the detection area (200) is by detecting tubular metal resonator (9) and three working tube (1) forms, and is three working tube (1) equidistant setting is in the inside of detecting tubular metal resonator (9), detect the inside of tubular metal resonator (9) and three form between the outside of working tube (1) detection area (200), three the inside sensor that is used for the holding to wait to detect of working tube (1).
7. A heat source detecting device according to claim 6, wherein: three the working tube (1) is arranged in an equilateral triangle array, and is three the working tube (1) forms a detection part, and the periphery bottom of the detection part is fixedly connected with a side plate.
8. A heat source detecting device according to claim 6, wherein: the outside cover that detects metal pipe (9) is equipped with heat preservation cotton layer (10), just heat preservation cotton layer (10) downwardly extending reaches the heating zone (100) outside.
9. A heat source detecting device according to claim 8, wherein: the heat dissipation area (300) is formed by sleeving a heat dissipation metal inner pipe (11) and a heat dissipation metal outer pipe (12);
the heat dissipation metal inner pipe (11) is sleeved outside the heat insulation cotton layer (10);
the heat dissipation metal outer pipe (12) is arranged outside the heat dissipation metal inner pipe (11) in a covering mode, and a heat dissipation area (300) is formed between the inside of the heat dissipation metal outer pipe (12) and the outside of the heat dissipation metal inner pipe (11).
10. A sensor detection method, characterized by: the method is based on the heat source detection device as claimed in any one of claims 1 to 9, and mainly comprises the following steps:
s1, introducing a liquid working medium into the heating area (100);
s2, heating the liquid working medium in the step S1 through a heating zone (100) so that the working medium is heated from the liquid state to be in a gas state;
s3, the gaseous working medium enters the detection area (200) through the air inlet (3) in the step S2, so that the detection area (200) reaches the preset temperature field temperature;
s4, placing the sensor into the working tube (1), calculating the maximum temperature field temperature difference through the temperature displayed by the sensor and the preset temperature field temperature in the step S3, and judging the detection precision of the sensor according to the maximum temperature field temperature difference.
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| CN202111194694.3A Active CN113959600B (en) | 2021-07-19 | 2021-10-13 | Heat source detection device and method thereof |
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| CN216207135U (en) * | 2021-07-19 | 2022-04-05 | 辽宁省计量科学研究院 | Heat source detection equipment for aviation sensor |
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| GB490817A (en) * | 1937-02-20 | 1938-08-22 | Christopher Stephenson | Improvements in or relating to oil testing apparatus |
| JPH07198505A (en) * | 1993-12-29 | 1995-08-01 | Anritsu Keiki Kk | Temperature reference device |
| CN2305664Y (en) * | 1997-06-24 | 1999-01-27 | 张晨曦 | Heat pipe thermostat |
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| CN204924499U (en) * | 2015-07-22 | 2015-12-30 | 张晨曦 | Heat pipe thermotank |
| CN205157080U (en) * | 2015-11-27 | 2016-04-13 | 辽宁华科石油设备科技有限公司 | Temperature sensor heat pipe assay furnace |
| CN216207135U (en) * | 2021-07-19 | 2022-04-05 | 辽宁省计量科学研究院 | Heat source detection equipment for aviation sensor |
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2021
- 2021-09-26 CN CN202122334875.3U patent/CN216207135U/en active Active
- 2021-10-13 CN CN202111194694.3A patent/CN113959600B/en active Active
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| GB490817A (en) * | 1937-02-20 | 1938-08-22 | Christopher Stephenson | Improvements in or relating to oil testing apparatus |
| JPH07198505A (en) * | 1993-12-29 | 1995-08-01 | Anritsu Keiki Kk | Temperature reference device |
| CN2305664Y (en) * | 1997-06-24 | 1999-01-27 | 张晨曦 | Heat pipe thermostat |
| RU31282U1 (en) * | 2003-03-31 | 2003-07-27 | Федеральное государственное унитарное предприятие Омский опытный завод "Эталон" | Dry Block Thermostat |
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| CN216207135U (en) * | 2021-07-19 | 2022-04-05 | 辽宁省计量科学研究院 | Heat source detection equipment for aviation sensor |
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| CN216207135U (en) | 2022-04-05 |
| CN113959600B (en) | 2023-09-12 |
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