CN211652637U - Air-steam heat supply coefficient measuring device - Google Patents
Air-steam heat supply coefficient measuring device Download PDFInfo
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- CN211652637U CN211652637U CN201922451613.8U CN201922451613U CN211652637U CN 211652637 U CN211652637 U CN 211652637U CN 201922451613 U CN201922451613 U CN 201922451613U CN 211652637 U CN211652637 U CN 211652637U
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- 238000012360 testing method Methods 0.000 claims abstract description 28
- 239000012530 fluid Substances 0.000 claims description 56
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 31
- 238000010438 heat treatment Methods 0.000 claims description 11
- 229910001220 stainless steel Inorganic materials 0.000 claims description 9
- 239000010935 stainless steel Substances 0.000 claims description 9
- 238000009413 insulation Methods 0.000 claims description 6
- 239000011261 inert gas Substances 0.000 claims description 5
- 239000012774 insulation material Substances 0.000 claims description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 239000011521 glass Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 239000011148 porous material Substances 0.000 claims 1
- 238000002474 experimental method Methods 0.000 abstract description 17
- 238000013461 design Methods 0.000 abstract description 5
- 238000000034 method Methods 0.000 description 10
- 238000012546 transfer Methods 0.000 description 6
- 238000012545 processing Methods 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- 238000005259 measurement Methods 0.000 description 3
- 238000004321 preservation Methods 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000009172 bursting Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000013479 data entry Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
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Abstract
The utility model discloses an air-steam gives thermal coefficient survey device contains steam generator and survey device, survey device includes the frame, be equipped with electrical control box, air pump, steam pipe cover in the frame, be equipped with paperless record appearance and display element in the electrical control box, the air pump has connected gradually flowmeter, test tube and blast pipe through the pipeline, the sealed parcel of test tube is in the steam pipe cover, the steam pipe cover passes through steam conduit and steam generator intercommunication, the bottom of steam pipe cover is equipped with the steam trap. The utility model discloses simple structure, reasonable in design effectively carries out the survey for the thermal coefficient fast, enables the student and fully understands the experiment purpose that the thermal coefficient surveyed for air-steam in the experimentation, deepens memory, provides student's hands-on operation ability, has filled the simple and easy blank of giving thermal coefficient survey experimental apparatus in laboratory.
Description
Technical Field
The utility model relates to a laboratory gives thermal coefficient survey experimental facilities field, in particular to air-steam gives thermal coefficient survey device.
Background
In industrial processes, in many cases, the cold and hot fluid systems exchange heat via solid walls (heat transfer elements), which are known as recuperative heat exchange. The dividing wall type heat transfer process consists of the convective heat transfer of hot fluid to the solid wall surface, the thermal conduction of the solid wall surface and the convective heat transfer of the solid wall surface to cold fluid.
The heat coefficient measurement is used for learning in a laboratory, so that students can learn and understand the dividing wall type heat transfer element and master an experimental method for heat coefficient measurement; a method for measuring the temperature of the thermal resistor is mastered, and the condensation phenomenon of water vapor on the outer wall of the horizontal pipe is observed; the experimental data processing method for measuring the heat coefficient is learned, and factors influencing the heat coefficient and a way for enhancing heat transfer are known.
The existing laboratory is not provided with a mature experimental device, and scientific research personnel in the school particularly design an air-steam heat supply coefficient measuring device according to various factors in the heat supply coefficient measuring experimental process, so that the air-steam heat supply coefficient measuring device is used for assisting teachers in teaching and helping students in understanding.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the technical problem that will solve lies in overcoming prior art's defect, provides an air-steam gives thermal coefficient survey device, simple structure, and reasonable in design effectively assists the teacher to teach and help the student to understand and give the thermal coefficient survey experiment.
The technical scheme of the utility model:
the utility model provides an air-steam gives thermal coefficient survey device, contains steam generator and survey device, survey device includes the frame, be equipped with electrical control box, air pump, steam pipe cover in the frame, be equipped with paperless record appearance and display element in the electrical control box, the air pump has connected gradually flowmeter, test tube and blast pipe through the pipeline, the sealed parcel of test tube is in the steam pipe cover, steam pipe cover passes through steam pipe and steam generator intercommunication, steam pipe cover's bottom is equipped with the steam pipe that drains, the both ends of test tube are equipped with cold fluid entry temperature sensor and cold fluid export temperature sensor respectively, steam pipe cover's both ends are equipped with hot-fluid entry temperature sensor and hot-fluid export temperature sensor respectively, flowmeter, cold fluid entry temperature sensor, cold fluid export temperature sensor, The hot fluid inlet temperature sensor and the hot fluid outlet temperature sensor are in signal connection with the paperless recorder, the flow direction of the hot fluid in the steam pipe sleeve is opposite to the flow direction of the cold fluid in the testing pipeline, a cold fluid inlet valve is arranged between the flowmeter and the testing pipeline, and a condensed water emptying valve is arranged on the drainage steam pipe.
Furthermore, a heat insulation layer is arranged in the steam pipe sleeve, and a heat insulation material is wrapped outside the steam pipe.
Further, the flowmeter is an orifice plate flowmeter.
Further, an inert gas emptying valve is arranged on the steam pipe sleeve.
Furthermore, a Y-shaped air escape valve is arranged between the air pump and the flowmeter.
Furthermore, the steam pipeline is communicated with a steam drainage pipe through a three-way pipe and another condensate water emptying valve, a pressure gauge is arranged between the three-way pipe and the steam pipe sleeve, and a hot fluid inlet valve is arranged between the three-way pipe and the pressure gauge.
Furthermore, an observation window is arranged on the steam pipe sleeve.
Furthermore, the material of the test pipeline is red copper.
Furthermore, the steam pipe sleeve is made of stainless steel and is a double-layer vacuum stainless steel sleeve.
Further, the observation window is made of double-layer vacuum heat insulation glass.
Compared with the prior art, the utility model discloses use steam generator to produce the hot-fluid, the air pump produces the cold fluid, give the thermal coefficient survey through test pipeline test air-steam, through the temperature difference of survey hot-fluid temperature difference and cold fluid, and cold fluid flow and steam pressure, test pipeline coefficient etc., directly demonstrate data on display device, the curve contrast drawing and the fitting formula of experimental result are obtained to rethread data processing software, and convenient operation, the error is little, the experiment purpose that the air-steam that enables student's full understanding gives the thermal coefficient survey in the experimentation, deepen memory, provide student's hands-on operation ability; the heat-preservation and heat-insulation materials arranged on the steam pipeline and the steam pipe sleeve not only preserve heat of the steam, but also prevent operators from being scalded by mistake; the orifice plate flowmeter has simple structure, firmness, stable and reliable performance, long service life and lower price, is a commonly used flow measuring instrument in industry, adopts international standards in the whole processing process and is subjected to strict check detection; the inert gas exhaust valve can effectively and quickly exhaust air in the steam pipe sleeve and the steam pipeline, so that the steam purity in the steam pipeline and the steam pipe sleeve is ensured, and the experimental accuracy is improved; the Y-shaped air escape valve can adjust the air flow passing through the flowmeter and adjust the air flow according to the experimental requirement; the steam pipeline is communicated with the condensed water emptying pipe, so that condensed water can be drained at a plurality of points in the steam pipe sleeve, and the drainage effect is improved; the observation window can visually observe the condensed water on the test pipeline in the steam pipe sleeve, so that an experimenter can conveniently observe the experimental process; the vacuum pipe sleeve can effectively preserve and insulate heat. The utility model discloses simple structure, reasonable in design effectively assists teacher's teaching and helps the student to understand for thermal coefficient survey experiment, enables the air-steam that the student fully understands in the experimentation and gives the experiment purpose of thermal coefficient survey, deepens memory, provides student's hands-on operation ability, has filled the blank of laboratory for thermal coefficient survey experimental apparatus.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Detailed Description
The following describes in detail embodiments of the present invention with reference to the accompanying drawings.
Example 1:
an air-steam heat supply coefficient measuring device comprises a steam generator 1 and a measuring device 2, as shown in fig. 1, the measuring device 2 comprises a frame 21, an electric control box 22, an air pump 23 and a steam pipe sleeve 24 are arranged on the frame 21, a paperless recorder and a display unit 221 (and an electric control button for controlling the on and off of the air pump) are arranged in the electric control box 22, the air pump 23 is sequentially connected with a flowmeter 25, a test pipeline 26 and an exhaust pipe 27 through pipelines, the test pipeline 26 is hermetically wrapped in the steam pipe sleeve 24, the steam pipe sleeve 24 is communicated with the steam generator 1 through a steam pipeline 11, a water exhaust steam pipe 28 is arranged at the bottom of the steam pipe sleeve 24, a cold fluid inlet temperature sensor 31 and a cold fluid outlet temperature sensor 32 are respectively arranged at two ends of the test pipeline 26, a hot fluid inlet temperature sensor 33 and a hot fluid outlet temperature sensor 34 are respectively arranged at two ends of the steam pipe sleeve 24, the flowmeter 25, the cold fluid inlet temperature sensor 31, the cold fluid outlet temperature sensor 32, the hot fluid inlet temperature sensor 33 and the hot fluid outlet temperature sensor 34 are in signal connection with the paperless recorder, the flow direction of hot fluid in the steam pipe sleeve 24 is opposite to that of cold fluid in the test pipeline 26, a cold fluid inlet valve 41 is arranged between the flowmeter 25 and the test pipeline 26, and a condensed water emptying valve 42 is arranged on the drainage steam pipe 27.
Further, a heat insulation layer is arranged in the steam pipe sleeve 24, and a heat insulation material is wrapped outside the steam pipeline 11.
Further, the flow meter 25 is an orifice flow meter.
Further, an inert gas exhaust valve 43 is arranged on the steam pipe sleeve 24.
Further, a Y-shaped air release valve 44 is arranged between the air pump 23 and the flow meter 25.
Furthermore, the steam pipeline 11 is communicated with the steam discharge pipe 28 through a three-way pipe and another condensed water drain valve 42, a pressure gauge 5 is arranged between the three-way pipe and the steam pipe sleeve 24, and a hot fluid inlet valve 45 is arranged between the three-way pipe and the pressure gauge 5.
Further, the steam pipe sleeve 24 is provided with an observation window 6.
Further, the material of the test pipe 26 is red copper.
Further, the steam pipe sleeve 24 is made of stainless steel, and is a double-layer vacuum stainless steel sleeve.
Further, the observation window 6 is made of double-layer vacuum heat insulation glass.
The experimental procedure was as follows:
1. and (3) turning on a main power switch on the electrical control box, turning on a power switch of the instrument to electrify and preheat the instrument, and observing whether the instrument display is normal (the instrument is a display device of the electrical control box).
2. And filling clear water into the steam generator, and starting a power supply of the generator to enable the water to be in a heating state. After the steam pressure meeting the conditions is reached, the system can be automatically in a heat preservation state.
3. And opening a fan power switch on the electric control box to enable the fan to work, and simultaneously opening the cold fluid inlet valve to enable the double-pipe heat exchanger to be filled with a certain amount of air.
4. And opening a condensed water emptying valve to discharge the condensed water remained in the previous experiment, and keeping a certain opening degree in the whole experiment process. The opening degree is moderate, steam in the heat exchanger can run off when the opening degree is too large, and the steam pressure in the heat exchange stainless steel pipe is too large to cause the stainless steel pipe to burst when the opening degree is too small.
5. Before the water vapor is introduced, the condensed water in the pipeline from the steam generator to the experimental device is also removed, otherwise, the steam carrying the condensed water can damage the pressure gauge and the pressure transmitter. The specific method for draining the condensed water is as follows: and closing the hot fluid inlet valve, opening a condensed water discharging valve below the device, taking away the condensed water in the pipeline by steam pressure, and closing the condensed water emptying valve when the steam is sounded so as to perform the next experiment.
6. When the steam is introduced, the opening degree of the steam valve is carefully regulated, so that the steam slowly flows into the heat exchanger and gradually fills the system, the system is changed from a cold state to a hot state for not less than 10 minutes, and the stainless steel tube heat exchanger is prevented from bursting due to sudden heating and pressure.
7. After the preparation work is finished, the system is in a hot state, the hot fluid inlet valve is adjusted to maintain the pressure of the steam inlet at 0.01 MPa, and the operation can be realized by adjusting the opening degrees of the hot fluid inlet valve and the condensate water emptying valve.
8. When adjusting cold air inlet flow, accessible configuration software or instrument regulation fan rotational speed frequency change the flow of cold fluid to a definite value, also can adjust the flow of cold fluid to a definite value through the control release valve, under every flow condition, all must wait that the stable rear of heat exchange process can take notes experimental value, changes the flow, records the experimental value under the different flows.
9. 6-8 groups of experimental data are recorded, and the experiment can be finished. Firstly, closing a steam generator, closing a hot fluid inlet valve, closing an instrument power supply, closing a fan power supply after the system is gradually cooled, closing a condensed water emptying valve after condensed water flows out, and closing a main power supply. And draining water after the water in the steam generator is cooled.
And (3) processing experimental data:
1. and (3) opening data processing software on a computer, selecting an air-steam heat supply coefficient measurement experiment, and importing MCGS experiment data.
2. And opening the imported experiment, checking the original experimental data and the final processing result of the experimental data, and obtaining a curve comparison graph and a fitting formula of the experimental result by pointing to a 'display curve'.
3. The program will have a warning dialog to jump out if the data entry is incorrect or obviously not in accordance with the experimental situation. After the data is modified each time, the 'save data' is clicked, and then the 'display result' and the 'display curve' are clicked according to the sequence in the 2 steps.
4. The results of the software treatment are recorded and can be used as a control for the manual treatment. At the end, point "exit program".
Compared with the prior art, the utility model discloses use steam generator to produce the hot-fluid, the air pump produces the cold fluid, give the thermal coefficient survey through test pipeline test air-steam, through the temperature difference of survey hot-fluid temperature difference and cold fluid, and cold fluid flow and steam pressure, test pipeline coefficient etc., directly demonstrate data on display device, the curve contrast drawing and the fitting formula of experimental result are obtained to rethread data processing software, and convenient operation, the error is little, the experiment purpose that the air-steam that enables student's full understanding gives the thermal coefficient survey in the experimentation, deepen memory, provide student's hands-on operation ability; the heat-preservation and heat-insulation materials arranged on the steam pipeline and the steam pipe sleeve not only preserve heat of the steam, but also prevent operators from being scalded by mistake; the orifice plate flowmeter has simple structure, firmness, stable and reliable performance, long service life and lower price, is a commonly used flow measuring instrument in industry, adopts international standards in the whole processing process and is subjected to strict check detection; the inert gas exhaust valve can effectively and quickly exhaust air in the steam pipe sleeve and the steam pipeline, so that the steam purity in the steam pipeline and the steam pipe sleeve is ensured, and the experimental accuracy is improved; the Y-shaped air escape valve can adjust the air flow passing through the flowmeter and adjust the air flow according to the experimental requirement; the steam pipeline is communicated with the condensed water emptying pipe, so that condensed water can be drained at a plurality of points in the steam pipe sleeve, and the drainage effect is improved; the observation window can visually observe the condensed water on the test pipeline in the steam pipe sleeve, so that an experimenter can conveniently observe the experimental process; the vacuum pipe sleeve can effectively preserve and insulate heat. The utility model discloses simple structure, reasonable in design effectively assists teacher's teaching and helps the student to understand for thermal coefficient survey experiment, enables the air-steam that the student fully understands in the experimentation and gives the experiment purpose of thermal coefficient survey, deepens memory, provides student's hands-on operation ability, has filled the blank of laboratory for thermal coefficient survey experimental apparatus.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. The present invention is not limited by the above embodiments, and the description in the above embodiments and the description is only for illustrating the principle of the present invention, and the present invention will have various changes and improvements without departing from the spirit and scope of the present invention, and these changes and improvements all fall into the scope of the present invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. An air-steam heat supply coefficient measuring apparatus, characterized in that: contain steam generator and survey device, survey device includes the frame, be equipped with electrical control box, air pump, steam pipe sleeve in the frame, be equipped with no paper record appearance and display element in the electrical control box, the air pump has connected gradually flowmeter, test tube and blast pipe through the pipeline, the sealed parcel of test tube is in the steam pipe sleeve, steam pipe sleeve passes through steam pipe and steam generator intercommunication, steam pipe sleeve's bottom is equipped with the drainage steam pipe, test tube's both ends are equipped with cold fluid entry temperature sensor and cold fluid export temperature sensor respectively, steam pipe sleeve's both ends are equipped with hot-fluid entry temperature sensor and hot-fluid export temperature sensor respectively, flowmeter, cold fluid entry temperature sensor, cold fluid export temperature sensor, hot-fluid entry temperature sensor and hot-fluid export temperature sensor with no paper record appearance signal connection, the flow direction of the hot fluid in the steam pipe sleeve is opposite to the flow direction of the cold fluid in the test pipeline, a cold fluid inlet valve is arranged between the flowmeter and the test pipeline, and a condensed water emptying valve is arranged on the water drainage steam pipe.
2. An air-steam heating coefficient measuring apparatus according to claim 1, wherein: the steam pipe sleeve is internally provided with a heat insulation layer, and the steam pipe is wrapped with a heat insulation material.
3. An air-steam heating coefficient measuring apparatus according to claim 1, wherein: the flowmeter is a pore plate flowmeter.
4. An air-steam heating coefficient measuring apparatus according to claim 1, wherein: and an inert gas exhaust valve is arranged on the steam pipe sleeve.
5. An air-steam heating coefficient measuring apparatus according to claim 1, wherein: and a Y-shaped air escape valve is arranged between the air pump and the flowmeter.
6. An air-steam heating coefficient measuring apparatus according to claim 1, wherein: the steam pipeline is communicated with a steam drainage pipe through a three-way pipe and another condensate water emptying valve, a pressure gauge is arranged between the three-way pipe and the steam pipe sleeve, and a hot fluid inlet valve is arranged between the three-way pipe and the pressure gauge.
7. An air-steam heating coefficient measuring apparatus according to claim 1, wherein: an observation window is arranged on the steam pipe sleeve.
8. An air-steam heating coefficient measuring apparatus according to claim 1, wherein: the material of the test pipeline is red copper.
9. An air-steam heating coefficient measuring apparatus according to claim 2, wherein: the steam pipe sleeve is made of stainless steel and is a double-layer vacuum stainless steel sleeve.
10. An air-steam heating coefficient measuring apparatus according to claim 7, wherein: the observation window is made of double-layer vacuum heat insulation glass.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922451613.8U CN211652637U (en) | 2019-12-31 | 2019-12-31 | Air-steam heat supply coefficient measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922451613.8U CN211652637U (en) | 2019-12-31 | 2019-12-31 | Air-steam heat supply coefficient measuring device |
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| Publication Number | Publication Date |
|---|---|
| CN211652637U true CN211652637U (en) | 2020-10-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922451613.8U Expired - Fee Related CN211652637U (en) | 2019-12-31 | 2019-12-31 | Air-steam heat supply coefficient measuring device |
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| Country | Link |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116026624A (en) * | 2023-02-10 | 2023-04-28 | 四川晟蔚智能科技有限公司 | Single-pass water vapor decomposition efficiency testing system and testing method of water vapor decomposition device |
-
2019
- 2019-12-31 CN CN201922451613.8U patent/CN211652637U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116026624A (en) * | 2023-02-10 | 2023-04-28 | 四川晟蔚智能科技有限公司 | Single-pass water vapor decomposition efficiency testing system and testing method of water vapor decomposition device |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201009 |