CN117706109A - Method for monitoring flow velocity of fluid medium - Google Patents
Method for monitoring flow velocity of fluid medium Download PDFInfo
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- CN117706109A CN117706109A CN202311637479.5A CN202311637479A CN117706109A CN 117706109 A CN117706109 A CN 117706109A CN 202311637479 A CN202311637479 A CN 202311637479A CN 117706109 A CN117706109 A CN 117706109A
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- 238000009529 body temperature measurement Methods 0.000 claims abstract description 23
- 238000002955 isolation Methods 0.000 claims description 34
- 238000001816 cooling Methods 0.000 claims description 15
- 238000004806 packaging method and process Methods 0.000 claims description 13
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- 230000009286 beneficial effect Effects 0.000 description 1
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- 230000007547 defect Effects 0.000 description 1
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- 239000012535 impurity Substances 0.000 description 1
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Abstract
The invention relates to a method for monitoring the flow rate of a fluid medium, comprising the following steps: the method comprises the steps of arranging an inflow end and an outflow end in a fluid passage, enabling a fluid medium to flow in the fluid passage, enabling the fluid medium to flow from the inflow end to the outflow end, enabling the inflow end to be a heating temperature measuring end, enabling the outflow end to be a temperature measuring end, enabling a flowing distance to exist between the inflow end and the outflow end, enabling the fluid medium to be heated after first temperature measurement by the inflow end, enabling the outflow end to conduct second temperature measurement by the fluid medium, enabling the inflow end to conduct first temperature measurement to obtain an inflow temperature value, enabling the inflow end to conduct heating to enable the fluid medium to have a temperature rise value, enabling the outflow end to conduct second temperature measurement to obtain an outflow temperature value, and enabling the flowing distance, the inflow temperature value, the temperature rise value and the outflow temperature value to obtain a flow velocity value of the fluid medium.
Description
Technical Field
The present invention relates to a method for monitoring flow rate, and more particularly, to a method for monitoring flow rate of fluid medium by heating and measuring temperature.
Background
At present, there is a need for measuring the flow rate of liquid in various fields, such as a heating and ventilation field and various liquid monitoring fields, and the liquid is measured in a closed pipeline, and at present, a mechanical flow rate meter is used for measuring.
The flow meter generally includes a mechanical rotating portion provided in a liquid passage, the liquid pushing the mechanical rotating portion to rotate when the liquid flows therethrough, and an electronic control portion measuring a flow rate of the liquid by sampling a rotation speed of the mechanical rotating portion.
However, the conventional flow rate meter is generally only suitable for use in relatively clean liquid flow of water, and when impurities and foreign matters are mixed in the liquid, the situation that the foreign matters are blocked to a mechanical rotating part to cause the integral failure of the flow rate meter often occurs.
In addition, the conventional flow meter is generally applicable to normal temperature liquid flow, and when the liquid flow has a higher temperature, for example, more than 30 ℃, the mechanical rotation part is immersed in the liquid flow to work, and in this case, the measurement accuracy of the flow meter is often affected by physical deformation such as thermal expansion and contraction. Which is a major disadvantage of the prior art.
Disclosure of Invention
The technical scheme adopted by the invention is as follows: a method of monitoring the flow rate of a fluid medium comprising the steps of: the method comprises the steps of arranging an inflow end and an outflow end in a fluid passage, enabling a fluid medium to flow in the fluid passage, enabling the fluid medium to flow from the inflow end to the outflow end, enabling the inflow end to be a heating temperature measurement end, enabling the outflow end to be a temperature measurement end, and enabling a flowing distance to exist between the inflow end and the outflow end.
And when the fluid medium flows through the inflow end, firstly, the flowing fluid medium is subjected to first temperature measurement by the inflow end to obtain an inflow temperature value, then, the flowing fluid medium is heated by the inflow end to enable the fluid medium to have a temperature rise value, and finally, the flowing fluid medium is subjected to second temperature measurement by the outflow end to obtain an outflow temperature value.
Thirdly, obtaining a flow velocity value of the fluid medium according to the flowing distance, the flowing temperature value, the temperature rise value and the flowing temperature value, wherein the sum of the flowing temperature value and the temperature rise value is a superposition temperature, the difference between the superposition temperature and the flowing temperature value is a difference temperature, the cooling time required by the fluid medium for reducing the difference temperature is determined, and the flow velocity value of the fluid medium flow is obtained according to the cooling time and the flowing distance.
The temperature rise value is 10 ℃ to 30 ℃ higher than the inflow temperature value.
The inflow end and the outflow end are respectively connected with a sensor controller, the temperature rise value, the temperature reduction time calculation program and the flowing distance are respectively stored in the sensor controller, the inflow temperature value measured by the inflow end is transmitted to the sensor controller, the sensor controller controls the inflow end to heat the flowing fluid medium through the temperature rise value, the sensor controller calculates the superposition temperature, the outflow temperature value measured by the outflow end is transmitted to the sensor controller, the sensor controller calculates the difference temperature, the sensor controller determines the temperature reduction time according to the difference temperature and the temperature reduction time calculation program, and the sensor controller obtains the flow velocity value according to the temperature reduction time and the flowing distance, wherein the difference temperature corresponds to the temperature reduction time calculation program.
The inflow end comprises an inflow end carrier plate, a first temperature detector and a heater, wherein the first temperature detector and the heater are arranged on the inflow end carrier plate, the outflow end comprises an outflow end carrier plate and a second temperature detector, the second temperature detector is arranged on the outflow end carrier plate, and the first temperature detector, the heater and the second temperature detector are sequentially arranged in the flowing direction of the fluid medium from front to back.
The inflow end carrier plate and the outflow end carrier plate are obliquely arranged in the flowing direction of the fluid medium, the fluid medium sequentially flows through the first temperature detector, the heater and the second temperature detector, the heater corresponds to the second temperature detector, the first temperature detector is used for detecting temperature to obtain the inflow temperature value, the heater is used for heating the flowing fluid medium to enable the fluid medium to have the temperature rise value, and the second temperature detector is used for detecting temperature to obtain the outflow temperature value.
The inflow end carrier plate and the outflow end carrier plate are packaged in a fluid sensor, the fluid sensor further comprises an isolation conducting structure, and the inflow end carrier plate and the outflow end carrier plate are embedded in the isolation conducting structure.
The isolation conducting structure comprises an isolation part, a first temperature measuring conducting part, a heating conducting part and a second temperature measuring conducting part, wherein the isolation part is positioned between the inflow end carrier plate and the outflow end carrier plate, and an isolation plate is embedded in the isolation part.
The first temperature measuring conducting part corresponds to the first temperature measuring device of the inflow end carrier plate, the first temperature measuring device is wrapped between the first temperature measuring conducting part and the isolating part, the heating conducting part corresponds to the heater of the inflow end carrier plate, the heater is wrapped between the heating conducting part and the isolating part, the second temperature measuring conducting part corresponds to the second temperature measuring device of the outflow end carrier plate, and the second temperature measuring device is wrapped between the second temperature measuring conducting part and the isolating part.
The isolation conducting structure further comprises a fixed base, and the isolation part, the first temperature measuring conducting part, the heating conducting part and the second temperature measuring conducting part are fixedly connected to the fixed base at the same time.
The fluid sensor also comprises a sensor packaging barrel, the isolation conducting structure is filled in the sensor packaging barrel, the fluid medium flows through two sides of the sensor packaging barrel, the sensor packaging barrel is provided with a barrel bottom and a side wall, the side wall is fixedly connected to the barrel bottom, a barrel cavity is formed by the barrel bottom and the side wall in a surrounding mode, and the isolation conducting structure is arranged in the barrel cavity.
The side wall is concavely provided with a first temperature-measuring vortex cavity, a heating vortex cavity and a second temperature-measuring vortex cavity, wherein the first temperature-measuring vortex cavity corresponds to the first temperature detector of the inflow end carrier plate, the heating vortex cavity corresponds to the heater of the inflow end carrier plate, and the second temperature-measuring vortex cavity corresponds to the second temperature detector of the outflow end carrier plate.
The fluid medium flowing through one side of the sensor packaging barrel flows through the first temperature measuring vortex cavity, the heating vortex cavity and the second temperature measuring vortex cavity in sequence, wherein when the fluid medium flows through the first temperature measuring vortex cavity, the first temperature detector measures the temperature of the fluid medium, when the fluid medium flows through the heating vortex cavity, the heater heats the fluid medium, and when the fluid medium flows through the second temperature measuring vortex cavity, the second temperature detector measures the temperature of the fluid medium.
The side wall is provided with an inclined side plate, the first temperature-measuring vortex cavity and the heating vortex cavity are arranged on one side of the inclined side plate at the same time, and the first temperature-measuring vortex cavity is communicated with the heating vortex cavity.
The beneficial effects of the invention are as follows: the speed measuring principle of the invention is that an inflow end and an outflow end are arranged in a fluid passage, the fluid medium is heated after the inflow end carries out the first temperature measurement, the outflow end carries out the second temperature measurement, and finally the flow velocity value of the fluid medium is calculated by the flowing distance, the inflow temperature value, the temperature rise value and the outflow temperature value, so that a plurality of defects of the traditional mechanical flow velocity meter can be overcome, and the effect of improving the stability of the fluid sensor is achieved.
Drawings
FIG. 1 is a schematic view of a fluid sensor of the present invention.
Fig. 2 is a schematic diagram of a fluid sensor according to the present invention.
FIG. 3 is a schematic perspective view of a fluid sensor according to the present invention.
FIG. 4 is a schematic diagram showing the positions of the first temperature sensor, the heater and the second temperature sensor according to the present invention.
FIG. 5 is a schematic top view of the first temperature sensor, heater and second temperature sensor of the present invention.
FIG. 6 is a schematic cross-sectional view of an isolated conductive structure according to the present invention.
FIG. 7 is a schematic view of the cross-sectional structure of the A-A direction in FIG. 6.
Fig. 8 is a schematic top view of the cylindrical packaging barrel of the present invention.
Fig. 9 is a schematic top view of the sensor package of the present invention.
Fig. 10 is a schematic top view of another sensor package according to the present invention.
Fig. 11 is a schematic top view of a third sensor package according to the present invention.
Fig. 12 is a schematic diagram of a sensor package according to the present invention.
Fig. 13 is a schematic diagram of another sensor package according to the present invention.
Detailed Description
As shown in fig. 1 to 13, a method of monitoring a flow rate of a fluid medium includes the following steps.
In a first step, an inflow end 11 and an outflow end 12 are provided in a fluid passage, a fluid medium flows in the fluid passage, the fluid medium flows from the inflow end 11 toward the outflow end 12, the inflow end 11 is a heating temperature measurement end, the outflow end 12 is a temperature measurement end, and a flowing distance d exists between the inflow end 11 and the outflow end 12.
And secondly, heating the fluid medium after the first temperature measurement is performed by the inflow end 11, performing the second temperature measurement on the fluid medium by the outflow end 12, when the fluid medium flows through the inflow end 11, firstly, performing the first temperature measurement on the fluid medium flowing through by the inflow end 11 to obtain an inflow temperature value t1, then, heating the fluid medium flowing through by the inflow end 11 to obtain a temperature rise value t2, and finally, performing the second temperature measurement on the fluid medium flowing through by the outflow end 12 to obtain an outflow temperature value t4.
Thirdly, obtaining a flow velocity value S of the fluid medium through the flowing distance d, the inflow temperature value t1, the temperature rise value t2 and the outflow temperature value t4.
The sum of the inflow temperature value t1 and the temperature rise value t2 is a superimposed temperature t3, t1+t2=t3.
The difference between the superimposed temperature t3 and the outflow temperature t4 is the difference temperature t5, t3—t4=t5.
The cool down TIME required for the fluid medium to decrease the differential temperature t5 is determined.
And obtaining a flow velocity value S of the fluid medium flow according to the cooling TIME TIME and the flowing distance d, wherein S=d/TIME.
In practice, the temperature rise value t2 is higher than the inflow temperature value t1:10 ℃ to 30 ℃.
In practice, the cooling TIME can be determined according to the physical characteristics of the fluid medium, for example, the cooling TIME is determined according to the thermal conductivity, the heat dissipation rate, etc. of the fluid medium, and the cooling TIME of various fluid media is different in value, for example, liquid water and liquid oil all have different cooling TIMEs.
For example, the inflow temperature t1 is 30 ℃, the temperature rise t2 is 20 ℃, the flowing distance d is 2cm, the outflow temperature t4 is 45 ℃, the superposition temperature t3 is 50 ℃, the difference temperature t5 is 5 ℃, the cooling TIME TIME required by the cooling of the fluid medium to 5 ℃ is determined according to the physical characteristics of the fluid medium, and finally the flow velocity of the fluid medium is calculated through the flowing distance d and the cooling TIME, wherein the determination of the cooling TIME is not described in the prior art.
In practice, the inflow end 11 and the outflow end 12 are respectively connected to a sensor controller 13, and the temperature rise t2, the calculation program of the cooling TIME and the flowing distance d are respectively stored in the sensor controller 13.
In practice, a plurality of temperature rise values t2 are stored in the sensor controller 13, the sensor controller 13 can specifically determine a specific temperature rise value t2 for heating according to different usage situations, a plurality of calculation programs of the temperature reduction TIME are stored in the sensor controller 13, the calculation programs of the different temperature reduction TIME correspond to different situations, and a specific value of the flowing distance d can be set according to actual specifications.
The inflow temperature value t1 measured at the inflow end 11 is transmitted to the sensor controller 13, and the sensor controller 13 controls the intensity of heating of the fluid medium flowing through the inflow end 11 through the temperature rise value t 2.
The superposition temperature t3 is calculated by the sensor controller 13, the outflow temperature value t4 measured by the outflow end 12 is transmitted to the sensor controller 13, the difference temperature t5 is calculated by the sensor controller 13, the temperature reduction TIME TIME is determined by the sensor controller 13 according to the difference temperature t5 and the calculation program of the temperature reduction TIME TIME, and the flow velocity value S is obtained by the sensor controller 13 according to the temperature reduction TIME TIME and the flowing distance d.
The difference temperature t5 corresponds to the calculation program of the cooling TIME.
In a specific implementation, the inflow end 11 includes an inflow end carrier 110, a first temperature detector 120, and a heater 130, wherein the first temperature detector 120 and the heater 130 are disposed on the inflow end carrier 110.
The outflow end 12 includes an outflow end carrier 140 and a second temperature detector 150, wherein the second temperature detector 150 is disposed on the outflow end carrier 140.
The first temperature detector 120, the heater 130 and the second temperature detector 150 are sequentially disposed in the flow direction of the fluid medium from front to back.
In practice, the inflow end carrier plate 110 and the outflow end carrier plate 140 are disposed obliquely in the flow direction of the fluid medium.
The fluid medium flows through the first temperature detector 120, the heater 130, and the second temperature detector 150 in sequence.
The heater 130 corresponds to the second temperature detector 150.
The first temperature detector 120 is used for detecting the inflow temperature t1, the heater 130 heats the fluid medium flowing through to make the fluid medium have the temperature rise t2, and the second temperature detector 150 is used for detecting the outflow temperature t4.
In practice, the first temperature detector 120 and the second temperature detector 150 may be made of temperature-sensing sheet metal, the heater 130 may be made of an electric heating wire, which are not described in detail herein,
in particular implementations, the inflow end carrier plate 110 and the outflow end carrier plate 140 are encapsulated in the fluid sensor 10, and the fluid sensor 10 further includes an isolated conductive structure 200.
The inflow end carrier 110 and the outflow end carrier 140 are embedded in the isolated conductive structure 200.
The isolated conductive structure 200 includes an isolated portion 210, a first thermometric conductive portion 220, a heating conductive portion 230, and a second thermometric conductive portion 240.
The isolation portion 210 is disposed between the inflow end carrier plate 110 and the outflow end carrier plate 140, the isolation portion 210 is used for forming a signal interference shielding and a heat shielding between the inflow end carrier plate 110 and the outflow end carrier plate 140, and the isolation portion 210 is embedded with an isolation plate 211, and in practice, the isolation plate 211 may be made of ceramic or glass or other shielding and heat insulating materials.
The first temperature measuring conductive portion 220 corresponds to the first temperature measuring device 120 of the inflow end carrier plate 110, and the first temperature measuring device 120 is disposed between the first temperature measuring conductive portion 220 and the isolation portion 210.
The heat conducting portion 230 corresponds to the heater 130 of the inflow end carrier plate 110, and the heater 130 is disposed between the heat conducting portion 230 and the isolation portion 210 in a wrapping manner.
The second temperature measuring conductive portion 240 corresponds to the second temperature detector 150 of the outflow end carrier 140, and the second temperature detector 150 is disposed between the second temperature measuring conductive portion 240 and the isolation portion 210 in a wrapping manner.
The isolated conductive structure 200 further includes a stationary base 250. The isolation portion 210, the first temperature measurement conductive portion 220, the heating conductive portion 230, and the second temperature measurement conductive portion 240 are simultaneously fixedly coupled to the fixed base 250.
In practice, the isolated conductive structure 200 is produced in a single-shot, e.g., injection-molded, manner.
In particular, the isolation portion 210 is made of a heat insulating glue, the first temperature measuring conductive portion 220 and the second temperature measuring conductive portion 240 are made of a heat conducting glue, the heating conductive portion 230 is made of a heat conducting glue, and the heat insulating glue, the heat conducting glue and the heat conducting glue can be made of special silica gel, which is not described in detail in the prior art.
In practice, the isolation portion 210, the first temperature sensing and conducting portion 220, the heating and conducting portion 230, the second temperature sensing and conducting portion 240, and the fixing base 250 can be made of the same silica gel material, so as to facilitate one-time production.
In practical implementation, the heat conducting layer 260 is disposed on the outer surfaces of the first temperature measuring conducting portion 220, the heating conducting portion 230 and the second temperature measuring conducting portion 240, so that the temperature measuring and heating efficiency of the first temperature measuring device 120, the heater 130 and the second temperature measuring device 150 can be improved through the heat conducting layer 260, and the heat conductivity can be improved.
The thermally conductive layer 260 may be a metallic silver layer, a metallic copper layer, or other metallic layer.
In practice, the isolation conductive structure 200 is integrally disposed in the cylindrical packaging barrel 270, and the first temperature measuring conductive part 220, the heating conductive part 230 and the second temperature measuring conductive part 240 are respectively attached to the inner surface of the cylindrical packaging barrel 270.
In particular, the fluid sensor 10 further includes a sensor package 300, the isolated conductive structure 200 is disposed within the sensor package 300, and the fluid medium flows through both sides of the sensor package 300.
The sensor package 300 has a bottom 310 and a sidewall 320, the sidewall 320 is fixedly connected to the bottom 310, a cavity 330 is formed around the sidewall 320 by the bottom 310 and the sidewall 320, and the isolated conductive structure 200 is disposed in the cavity 330.
The sidewall 320 is concavely provided with a first temperature-measuring vortex chamber 410, a heating vortex chamber 420 and a second temperature-measuring vortex chamber 430, wherein the first temperature-measuring vortex chamber 410 corresponds to the first temperature detector 120 of the inflow end carrier 110.
The heating vortex chamber 420 corresponds to the heater 130 of the inflow end carrier plate 110, and the second temperature measuring vortex chamber 430 corresponds to the second temperature detector 150 of the outflow end carrier plate 140.
The fluid medium flowing from one side of the sensor package 300 flows through the first temperature measuring vortex chamber 410, the heating vortex chamber 420 and the second temperature measuring vortex chamber 430 in sequence, wherein the first temperature detector 120 measures the temperature of the fluid medium when the fluid medium flows through the first temperature measuring vortex chamber 410, the heater 130 heats the fluid medium when the fluid medium flows through the heating vortex chamber 420, and the second temperature detector 150 measures the temperature of the fluid medium when the fluid medium flows through the second temperature measuring vortex chamber 430.
As described above, by providing the first temperature measuring vortex chamber 410, the heating vortex chamber 420, and the second temperature measuring vortex chamber 430, the residence time of the fluid medium flowing through the first temperature measuring device 120, the heater 130, and the second temperature measuring device 150 can be prolonged.
The first temperature detector 120, the heater 130 and the second temperature detector 150 can be fully contacted with the fluid medium, so that the temperature measurement and the heating actions can be more accurately and fully performed.
In practice, the side wall 320 has an inclined side plate 321, the first temperature-measuring vortex chamber 410 and the heating vortex chamber 420 are disposed at one side of the inclined side plate 321, the first temperature-measuring vortex chamber 410 is communicated with the heating vortex chamber 420, and the inclined side plate 321 can make the flow of the fluid medium smoother.
In practice, the inclined side plate 321 forms an angle with the flowing direction of the fluid medium, and the angle is greater than 120 degrees and less than 180 degrees.
Claims (10)
1. A method of monitoring the flow rate of a fluid medium, comprising the steps of:
in a first step, an inflow end and an outflow end are provided in the fluid passage,
the fluid medium flows in the fluid passage, the fluid medium flows from the inflow end to the outflow end, the inflow end is a heating temperature measuring end, the outflow end is a temperature measuring end, a flowing distance exists between the inflow end and the outflow end,
a second step of heating the fluid medium after the first temperature measurement by the inflow end and the second temperature measurement by the outflow end,
when the fluid medium flows through the inflow end, firstly, the inflow end carries out first temperature measurement on the flowing fluid medium to obtain an inflow temperature value, then the inflow end heats the flowing fluid medium to enable the flowing fluid medium to have a temperature rise value, finally, the outflow end carries out second temperature measurement on the flowing fluid medium to obtain an outflow temperature value,
thirdly, obtaining a flow velocity value of the fluid medium through the flowing distance, the inflow temperature value, the temperature rise value and the outflow temperature value,
the sum of the inflow temperature value and the temperature rise value is a superposition temperature, the difference between the superposition temperature and the outflow temperature value is a difference temperature, the cooling time required by the fluid medium to reduce the difference temperature is determined, and the flow velocity value of the fluid medium flow is obtained according to the cooling time and the flowing distance.
2. A method of monitoring the flow rate of a fluid medium as claimed in claim 1, wherein: the temperature rise value is 10 ℃ to 30 ℃ higher than the inflow temperature value.
3. A method of monitoring the flow rate of a fluid medium as claimed in claim 1, wherein: the inflow end and the outflow end are respectively connected with a sensor controller, the temperature rise value, the temperature reduction time calculation program and the flowing distance are respectively stored in the sensor controller, the inflow temperature value measured by the inflow end is transmitted to the sensor controller, the sensor controller controls the inflow end to heat the flowing fluid medium through the temperature rise value, the sensor controller calculates the superposition temperature, the outflow temperature value measured by the outflow end is transmitted to the sensor controller, the sensor controller calculates the difference temperature, the sensor controller determines the temperature reduction time according to the difference temperature and the temperature reduction time calculation program, and the sensor controller obtains the flow velocity value according to the temperature reduction time and the flowing distance, wherein the difference temperature corresponds to the temperature reduction time calculation program.
4. A method of monitoring the flow rate of a fluid medium as claimed in claim 1, wherein: the inflow end comprises an inflow end carrier plate, a first temperature detector and a heater, wherein the first temperature detector and the heater are arranged on the inflow end carrier plate, the outflow end comprises an outflow end carrier plate and a second temperature detector, the second temperature detector is arranged on the outflow end carrier plate, and the first temperature detector, the heater and the second temperature detector are sequentially arranged in the flowing direction of the fluid medium from front to back.
5. A method of monitoring the flow rate of a fluid medium as defined in claim 4, wherein: the inflow end carrier plate and the outflow end carrier plate are obliquely arranged in the flowing direction of the fluid medium, the fluid medium sequentially flows through the first temperature detector, the heater and the second temperature detector, the heater corresponds to the second temperature detector, the first temperature detector is used for detecting temperature to obtain the inflow temperature value, the heater is used for heating the flowing fluid medium to enable the fluid medium to have the temperature rise value, and the second temperature detector is used for detecting temperature to obtain the outflow temperature value.
6. A method of monitoring the flow rate of a fluid medium according to claim 5, wherein: the inflow end carrier plate and the outflow end carrier plate are packaged in a fluid sensor, the fluid sensor further comprises an isolation conducting structure, and the inflow end carrier plate and the outflow end carrier plate are embedded in the isolation conducting structure.
7. A method of monitoring the flow rate of a fluid medium as defined in claim 6, wherein: the isolation conducting structure comprises an isolation part, a first temperature measuring conducting part, a heating conducting part and a second temperature measuring conducting part, wherein the isolation part is positioned between the inflow end carrier plate and the outflow end carrier plate, an isolation plate is embedded in the isolation part,
the first temperature measuring conducting part corresponds to the first temperature measuring device of the inflow end carrier plate, the first temperature measuring device is wrapped between the first temperature measuring conducting part and the isolating part, the heating conducting part corresponds to the heater of the inflow end carrier plate, the heater is wrapped between the heating conducting part and the isolating part, the second temperature measuring conducting part corresponds to the second temperature measuring device of the outflow end carrier plate, the second temperature measuring device is wrapped between the second temperature measuring conducting part and the isolating part,
the isolation conducting structure further comprises a fixed base, and the isolation part, the first temperature measuring conducting part, the heating conducting part and the second temperature measuring conducting part are fixedly connected to the fixed base at the same time.
8. A method of monitoring the flow rate of a fluid medium as defined in claim 6, wherein: the fluid sensor also comprises a sensor packaging barrel, the isolation conducting structure is filled in the sensor packaging barrel, the fluid medium flows through two sides of the sensor packaging barrel, the sensor packaging barrel is provided with a barrel bottom and a side wall, the side wall is fixedly connected to the barrel bottom, a barrel cavity is formed by the barrel bottom and the side wall in a surrounding mode, and the isolation conducting structure is arranged in the barrel cavity.
9. A method of monitoring the flow rate of a fluid medium as claimed in claim 8, wherein: a first temperature-measuring vortex cavity, a heating vortex cavity and a second temperature-measuring vortex cavity are concavely arranged on the side wall, wherein the first temperature-measuring vortex cavity corresponds to the first temperature detector of the inflow end carrier plate, the heating vortex cavity corresponds to the heater of the inflow end carrier plate, the second temperature-measuring vortex cavity corresponds to the second temperature detector of the outflow end carrier plate,
the fluid medium flowing through one side of the sensor packaging barrel flows through the first temperature measuring vortex cavity, the heating vortex cavity and the second temperature measuring vortex cavity in sequence, wherein when the fluid medium flows through the first temperature measuring vortex cavity, the first temperature detector measures the temperature of the fluid medium, when the fluid medium flows through the heating vortex cavity, the heater heats the fluid medium, and when the fluid medium flows through the second temperature measuring vortex cavity, the second temperature detector measures the temperature of the fluid medium.
10. A method of monitoring the flow rate of a fluid medium as claimed in claim 9, wherein: the side wall is provided with an inclined side plate, the first temperature-measuring vortex cavity and the heating vortex cavity are arranged on one side of the inclined side plate at the same time, and the first temperature-measuring vortex cavity is communicated with the heating vortex cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311637479.5A CN117706109A (en) | 2023-11-30 | 2023-11-30 | Method for monitoring flow velocity of fluid medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311637479.5A CN117706109A (en) | 2023-11-30 | 2023-11-30 | Method for monitoring flow velocity of fluid medium |
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| Publication Number | Publication Date |
|---|---|
| CN117706109A true CN117706109A (en) | 2024-03-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202311637479.5A Pending CN117706109A (en) | 2023-11-30 | 2023-11-30 | Method for monitoring flow velocity of fluid medium |
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- 2023-11-30 CN CN202311637479.5A patent/CN117706109A/en active Pending
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