CN108645889A - A kind of air test system of test heat exchanger tube heat transfer property - Google Patents
A kind of air test system of test heat exchanger tube heat transfer property Download PDFInfo
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- CN108645889A CN108645889A CN201810777083.3A CN201810777083A CN108645889A CN 108645889 A CN108645889 A CN 108645889A CN 201810777083 A CN201810777083 A CN 201810777083A CN 108645889 A CN108645889 A CN 108645889A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N25/00—Investigating or analyzing materials by the use of thermal means
- G01N25/20—Investigating or analyzing materials by the use of thermal means by investigating the development of heat, i.e. calorimetry, e.g. by measuring specific heat, by measuring thermal conductivity
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Abstract
The invention discloses a kind of air test systems of test heat exchanger tube heat transfer property, including water system, hot-air system, test system and at least two to be used to install the attachment device of testpieces；Water system includes the water supply installation and captation that respectively testpieces supplies water and drains；Hot-air system includes the feeder and exhaust apparatus of respectively testpieces gas supply and exhaust；Test system includes temperature sensor, pressure sensor and flow sensor.Advantageous effect：Centrifugal water pump and wind turbine can provide appropriate temperature, pressure, operating mode of the simulation finned tube in heat exchanger.Three testpieces are parallel with one another, and the front and back of testpieces is equipped with temperature sensor, pressure sensor and flow sensor, can accurately contrast the heat transfer property difference between the smaller testpieces of difference in structure.The structure of this pilot system is simple, manufacturing cost and maintenance cost are low, and its configuration is flexible, applied widely.The present invention relates to the testing equipments of heat exchanger tube.
Description
Technical field
The present invention relates to the testing equipment of heat exchanger tube, more particularly to a kind of air test system of test heat exchanger tube heat transfer property
System.
Background technology
Heat exchanger is the commonly used equipment in the industries such as chemical industry, power plant and medicine.Heat exchanger tube is the core component of heat exchanger,
In order to improve the utilization rate of equipment and reduce equipment cost, the thermoexcells such as finned tube are usually selected.Fin tube structure is various,
Even mutually isostructural finned tube, partial structurtes size is different, will also there is different heat-exchange performances in identical operating condition
Can and fin efficiency, to compare the heat transfer property of different finned tubes, need the heat transfer property of test battery system exchange heat pipe into
The accurate contrast test test of row.
The heat exchanger operating temperature used in nuclear power plant is high, and device structure enlargement, precise requirements are high, existing heat exchange
Performance test technology cannot be satisfied the requirement of the scale, parameter and precision of nuclear power plant's heat-exchanger products heat exchange property.Existing wing
Piece pipe pilot system is generally used for the experiment of air-conditioning equipment finned tube, and experimental enviroment is low temperature environment, and technological deficiency is：
The scope of application is small and precision is low, the heat transfer property of finned tube can not be tested under high temperature air environment, and can not accurately test out
Heat transfer property difference between the similar finned tube of structure.
Testpieces in this pilot system includes shell side and tube side, and shell side medium is hot-air, and tube side medium is water,
Shell side medium and tube side medium carry out heat exchange by heat exchanging pipe wall.Heat exchanger tube intercepts the heat exchanger tube sample from heat-exchanger products
Pipe.Referring to Fig.1, a kind of testpieces in the prior art, including shell and the finned tube through shell, finned tube are intercepted from nuclear power
The both ends of the finned tube sample pipe of station-service, shell are respectively equipped with entrance connecting flange and outlet connecting flange, finned tube
Both ends are equipped with for being taken over to the pipe side water inlet for being passed through and being discharged tube side medium inside it and pipe side water out is taken over, finned tube
Through the both sides of shell.
Invention content
Technical problem to be solved by the invention is to provide a kind of air test systems of test heat exchanger tube heat transfer property, can
The heat transfer property that heat exchanger tube is tested under high temperature air environment, can accurately test out the conductivity of heat between the similar finned tube of structure
It can difference.
Used technical solution to solve above-mentioned technical problem：A kind of air test system of test heat exchanger tube heat transfer property
System, including water system, hot-air system, test system and at least two are used to install the attachment device of testpieces；
Water system includes the water supply installation and captation that respectively testpieces supplies water and drains；
Hot-air system includes the feeder and exhaust apparatus of respectively testpieces gas supply and exhaust；
Test system includes temperature sensor, pressure sensor and flow sensor；
Temperature sensor includes the first temperature sensor of the supply water temperature for measuring water supply installation, measures each experiment respectively
The second temperature sensor of the temperature at discharging condensate of part, measure feeder feed air temperature third temperature sensor and measure respectively
4th temperature sensor of the delivery temperature of each testpieces；
Pressure sensor includes the first pressure sensor for the pressure of supply water for measuring water supply installation, measures each experiment respectively
The second pressure sensor of the discharge pressure of part, measure feeder supply gas pressure third pressure sensor and measure respectively
4th pressure sensor of the pressure at expulsion of each testpieces；
Flow sensor includes the first flow sensor for the displacement for measuring testpieces and measures the capacity of testpieces
Second flow sensor.
As an improvement, being equipped with the first shut-off valve between testpieces and captation, it is equipped between testpieces and exhaust apparatus
Second shut-off valve.
As an improvement, being equipped with water bypass valve between water supply installation and drainage arrangement, set between feeder and exhaust apparatus
There is gas bypass valve.
As an improvement, water supply installation is centrifugal water pump, captation is header tank, and feeder is wind turbine, exhaust apparatus
For discharge duct.
As an improvement, attachment device includes the first connecting tube being connect with the entrance connecting flange of testpieces and and testpieces
Outlet connecting flange connection the second connecting tube, one end of the first connecting tube is equipped with first flange and connects with the entrance of testpieces
Acting flange is detachably connected, and one end of the second connecting tube is equipped with second flange and detachable with the outlet connecting flange of testpieces
Ground connects.
As an improvement, the first connecting tube is taken over equipped with the air intlet detachably connected with feeder, air into
The size that mouth is taken over is less than first flange, and air intlet is taken over is equipped with divergent segment, divergent segment and the first method between first flange
The changeover portion equal with first flange internal diameter is equipped between orchid.
As an improvement, the second connecting tube is taken over equipped with the air outlet slit detachably connected with exhaust apparatus, air goes out
The size that mouth is taken over is less than second flange, and air outlet slit is taken over is equipped with converging transition between second flange.
As an improvement, the range of centrifugal water pump is 40t/h, the volume of lift 100m, header tank are not less than 10m3, wind
The air quantity of machine is 7000m3, electrical power 30KW, total head 8000Pa.
As an improvement, temperature sensor is PT100 type thermal resistances, pressure sensor is accuracy class not less than 1.6 grades
Pressure gauge, first flow sensor are the vortex street sensor that accuracy class is not less than 1.0 grades, and second flow sensor is precision etc.
Grade is not less than 1.0 grades of gas flowmeter.
Advantageous effect：Centrifugal water pump and wind turbine can provide appropriate temperature, pressure, work of the simulation finned tube in heat exchanger
Condition.Three testpieces are parallel with one another, and the front and back of testpieces is equipped with temperature sensor, pressure sensor and flow sensor, can
The accurate heat transfer property difference contrasted between the smaller testpieces of difference in structure.The structure of this pilot system is simple, manufactures
Cost and maintenance cost are low, and its configuration is flexible, applied widely.
Description of the drawings
Following further describes the present invention with reference to the drawings：
Fig. 1 is the structural schematic diagram of the testpieces of the embodiment of the present invention；
Fig. 2 is the structural schematic diagram of the attachment device of the embodiment of the present invention；
Fig. 3 is the structural schematic diagram of the embodiment of the present invention；
The noun that embodiment is related to Figure of description includes with label：Shell 1, entrance connecting flange 3, goes out finned tube 2
Mouth connecting flange 4, pipe side water inlet take over 5, pipe side water out take over 6, the first connecting tube 7, the second connecting tube 8, first flange
9, second flange 10, divergent segment 11, changeover portion 12, converging transition 13, centrifugal water pump 14, wind turbine 15, testpieces 16, header tank 17,
Discharge duct 18, water bypass valve 19, gas bypass valve 20, temperature sensor 21, pressure sensor 22, flow sensor 23, first
Shut-off valve 24, the second shut-off valve 25.
Specific implementation mode
Equipment used in the present embodiment and device unless otherwise specified, can be obtained from routine business approach.
Referring to figs. 1 to 3, the present embodiment is a kind of performance of heat exchange tubes verification test of large heat exchanger in nuclear power plant, experiment
Part 16 includes shell side and tube side, and shell side medium is hot-air, and tube side medium is water, and shell side medium and tube side medium are by changing
Heat pipe wall surface carries out heat exchange.Heat exchanger tube intercepts the heat exchanger tube sample pipe from heat-exchanger products.Referring to Fig.1, a kind of prior art
In heat exchanger tube, the both ends of including shell 1 and the finned tube 2 through shell 1, shell 1 are respectively equipped with entrance connecting flange 3 and go out
Mouthful connecting flange 4, the both ends of finned tube 2 are equipped with for the pipe side water inlet take over 5 for being passed through and being discharged tube side medium inside it
With pipe side water out take over 6, finned tube 2 runs through the both sides of shell 1.
Referring to figs. 1 to 3, a kind of air test system of test heat exchanger tube heat transfer property, including water system, hot wind system
The attachment device of system, test system and three for installing testpieces 16；Water system include be respectively testpieces 16 supply water and
The water supply installation and captation of draining；Hot-air system includes feeder and the exhaust of the respectively gas supply of testpieces 16 and exhaust
Device；Test system includes temperature sensor 21, pressure sensor 22 and flow sensor 23；Temperature sensor 21 includes measuring
First temperature sensor 21 of the supply water temperature of water supply installation, measure respectively each testpieces 16 temperature at discharging condensate second temperature
Sensor 21, measure feeder feed air temperature third temperature sensor 21 and measure the exhaust of each testpieces 16 respectively
4th temperature sensor 21 of temperature；Pressure sensor 22 includes the first pressure sensor for the pressure of supply water for measuring water supply installation
22, the second pressure sensor 22 of the discharge pressure of each testpieces 16 is measured respectively, measures the supply gas pressure of feeder
Third pressure sensor 22 and measure respectively each testpieces 16 pressure at expulsion the 4th pressure sensor 22；Flow sensor
23 include the second flow of the first flow sensor 23 and the capacity for measuring testpieces 16 for the displacement for measuring testpieces 16
Sensor 23.
With reference to Fig. 3, three testpieces 16 in the present embodiment are parallel with one another, and water supply installation is centrifugal water pump 14, and catchment dress
It is set to header tank 17, feeder is wind turbine 15, and exhaust apparatus is discharge duct 18.Be located at centrifugal water pump 14 and testpieces 16 it
Between temperature sensor 21 be the first temperature sensor 21, the temperature sensor being located between each testpieces 16 and header tank 17
21 be second temperature sensor 21, and the temperature sensor 21 being located between wind turbine 15 and testpieces 16 is third temperature sensor
21, the temperature sensor 21 being located between testpieces 16 and discharge duct 18 is the 4th temperature sensor 21.
Centrifugal water pump 14 and wind turbine 15 can provide appropriate temperature, pressure, operating mode of the simulation finned tube in heat exchanger.Three
A testpieces 16 is parallel with one another, and the front and back of testpieces 16 is equipped with temperature sensor 21, pressure sensor 22 and flow sensor
23, it can accurately contrast the heat transfer property difference between the smaller testpieces 16 of difference in structure.The structure letter of this pilot system
Single, manufacturing cost and maintenance cost are low, and its configuration is flexible, applied widely.
For the ease of the flow break-make between Control experiment part 16 and header tank 17, set between testpieces 16 and captation
There is the first shut-off valve 24.For the ease of the air-flow break-make between Control experiment part 16 and discharge duct 18, testpieces 16 and exhaust
The second shut-off valve 25 is equipped between device.
Water is equipped with for the ease of controlling the output of centrifugal water pump 14 and wind turbine 15, between water supply installation and drainage arrangement to bypass
Valve 19 is equipped with gas bypass valve 20 between feeder and exhaust apparatus.
Referring to figs. 1 to 3, for the ease of replacing testpieces 16, attachment device includes the entrance connecting flange 3 with testpieces 16
First connecting tube 7 of connection and the second connecting tube 8 being connect with the outlet connecting flange 4 of testpieces 16, the one of the first connecting tube 7
Equipped with first flange 9 and detachably connected with the entrance connecting flange 3 of testpieces 16, one end of the second connecting tube 8 is equipped at end
Second flange 10 is simultaneously detachably connected with the outlet connecting flange 4 of testpieces 16.
In order to make air-flow within the case 1 uniformly through the first connecting tube 7 is equipped with detachably connected with feeder
Air intlet is taken over, and the size that air intlet is taken over is less than first flange 9, and air intlet is taken between first flange 9 and is equipped with
Divergent segment 11 is equipped with the changeover portion 12 equal with 9 internal diameter of first flange between divergent segment 11 and first flange 9.11 He of divergent segment
Changeover portion 12 makes the air-flow that wind turbine 15 is sent out uniformly across shell 1, makes the reliability higher of test result.
For the ease of connecting various sizes of shell 1 and discharge duct 18, the second connecting tube 8 is equipped with can with exhaust apparatus
The air outlet slit releasably connected is taken over, and the size that air outlet slit is taken over is less than second flange 10, and air outlet slit is taken over and second
Converging transition 13 is equipped between flange 10.
The present embodiment is medium-sized test system, can meet accurate type selecting and contrast test before heat exchanger tube engineering application.Its
The range of centrifugal water pump 14 is 40t/h, and the volume of lift 100m, header tank 17 are not less than 10m3, the air quantity of wind turbine 15 is
7000m3, electrical power 30KW, total head 8000Pa.
In order to improve the precision of pilot system, temperature sensor 21 is PT100 type thermal resistances, and pressure sensor 22 is precision
Grade is not less than 1.6 grades of pressure gauge, and first flow sensor 23 is the vortex street sensor that accuracy class is not less than 1.0 grades, the
Two flow sensors 23 are the gas flowmeter that accuracy class is not less than 1.0 grades.
Embodiments of the present invention are explained in detail above in conjunction with attached drawing, but the present invention is not limited to above-mentioned embodiment party
Formula, technical field those of ordinary skill within the scope of knowledge, can also be before not departing from present inventive concept
Put that various changes can be made.
Claims (9)
1. a kind of air test system of test heat exchanger tube heat transfer property, it is characterised in that：Including water system, hot-air system,
Test system and at least two attachment devices for installing testpieces；
Water system includes the water supply installation and captation that respectively testpieces supplies water and drains；
Hot-air system includes the feeder and exhaust apparatus of respectively testpieces gas supply and exhaust；
Test system includes temperature sensor, pressure sensor and flow sensor；
Temperature sensor includes the first temperature sensor of the supply water temperature for measuring water supply installation, measures each testpieces respectively
The second temperature sensor of temperature at discharging condensate, measure feeder feed air temperature third temperature sensor and measure respectively each
4th temperature sensor of the delivery temperature of testpieces；
Pressure sensor includes the first pressure sensor for the pressure of supply water for measuring water supply installation, measures each testpieces respectively
The second pressure sensor of discharge pressure, measure feeder supply gas pressure third pressure sensor and measure respectively each
4th pressure sensor of the pressure at expulsion of testpieces；
Flow sensor includes the first flow sensor for the displacement for measuring testpieces and measures the of the capacity of testpieces
Two flow sensors.
2. the air test system of test heat exchanger tube heat transfer property according to claim 1, it is characterised in that：The experiment
It is equipped with the first shut-off valve between part and captation, the second shut-off valve is equipped between the testpieces and exhaust apparatus.
3. the air test system of test heat exchanger tube heat transfer property according to claim 1, it is characterised in that：The water supply
It is equipped with water bypass valve between device and drainage arrangement, gas bypass valve is equipped between the feeder and exhaust apparatus.
4. the air test system of test heat exchanger tube heat transfer property according to claim 1, it is characterised in that：The water supply
Device is centrifugal water pump, and the captation is header tank, and the feeder is wind turbine, and the exhaust apparatus is exhaust pipe
Road.
5. the air test system of test heat exchanger tube heat transfer property according to claim 1, it is characterised in that：The connection
Device includes the first connecting tube being connect with the entrance connecting flange of testpieces and is connect with the outlet connecting flange of testpieces
Second connecting tube, one end of the first connecting tube are equipped with first flange and detachably connected with the entrance connecting flange of testpieces,
One end of second connecting tube is equipped with second flange and detachably connected with the outlet connecting flange of testpieces.
6. the air test system of test heat exchanger tube heat transfer property according to claim 5, it is characterised in that：Described first
Connecting tube is taken over equipped with the air intlet detachably connected with the feeder, and the size that air intlet is taken over is less than the
One flange, air intlet is taken over is equipped with divergent segment between first flange, is equipped with and the first method between divergent segment and first flange
The equal changeover portion of blue internal diameter.
7. the air test system of test heat exchanger tube heat transfer property according to claim 5, it is characterised in that：Described second
Connecting tube is taken over equipped with the air outlet slit detachably connected with the exhaust apparatus, and the size that air outlet slit is taken over is less than the
Two flanges, air outlet slit is taken over is equipped with converging transition between second flange.
8. the air test system of test heat exchanger tube heat transfer property according to claim 4, it is characterised in that：The centrifugation
The range of water pump is 40t/h, and the volume of lift 100m, the header tank are not less than 10m3, the air quantity of the wind turbine is
7000m3, electrical power 30KW, total head 8000Pa.
9. the air test system of test heat exchanger tube heat transfer property according to claim 1, it is characterised in that：The temperature
Sensor is PT100 type thermal resistances, and the pressure sensor is the pressure gauge that accuracy class is not less than 1.6 grades, described first-class
Quantity sensor is the vortex street sensor that accuracy class is not less than 1.0 grades, and the second flow sensor is not less than for accuracy class
1.0 grades of gas flowmeter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810777083.3A CN108645889A (en) | 2018-07-11 | 2018-07-11 | A kind of air test system of test heat exchanger tube heat transfer property |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810777083.3A CN108645889A (en) | 2018-07-11 | 2018-07-11 | A kind of air test system of test heat exchanger tube heat transfer property |
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| Publication Number | Publication Date |
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| CN108645889A true CN108645889A (en) | 2018-10-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810777083.3A Pending CN108645889A (en) | 2018-07-11 | 2018-07-11 | A kind of air test system of test heat exchanger tube heat transfer property |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112782212A (en) * | 2020-12-29 | 2021-05-11 | 安徽应流集团霍山铸造有限公司 | Nuclear power metal heat preservation heat transfer performance test device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4729667A (en) * | 1985-06-17 | 1988-03-08 | Bbc Brown, Boveri & Company, Limited | Process and device for the determination of the thermal resistance of contaminated heat exchange elements of thermodynamic apparatuses, in particular of power station condensers |
| CN102628816A (en) * | 2012-04-19 | 2012-08-08 | 徐坚 | Multifunctional experimental platform of ground-source heat pump system |
| CN204102447U (en) * | 2014-09-17 | 2015-01-14 | 张超 | Multifunction heat transfer actual training device |
| CN104634812A (en) * | 2015-01-26 | 2015-05-20 | 西安交通大学 | Moisture separator reheater heat exchanger bundle experimental device and method |
| CN105866169A (en) * | 2016-05-26 | 2016-08-17 | 中冶焦耐工程技术有限公司 | Primary cooler heat exchange tube test device and method |
| CN205786422U (en) * | 2016-05-26 | 2016-12-07 | 中冶焦耐工程技术有限公司 | A kind of primary cooler heat exchanger tube assay device |
| CN106782020A (en) * | 2017-02-20 | 2017-05-31 | 福州大学 | Diabatic process strengthens self assembly experimental provision and application method |
-
2018
- 2018-07-11 CN CN201810777083.3A patent/CN108645889A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4729667A (en) * | 1985-06-17 | 1988-03-08 | Bbc Brown, Boveri & Company, Limited | Process and device for the determination of the thermal resistance of contaminated heat exchange elements of thermodynamic apparatuses, in particular of power station condensers |
| CN102628816A (en) * | 2012-04-19 | 2012-08-08 | 徐坚 | Multifunctional experimental platform of ground-source heat pump system |
| CN204102447U (en) * | 2014-09-17 | 2015-01-14 | 张超 | Multifunction heat transfer actual training device |
| CN104634812A (en) * | 2015-01-26 | 2015-05-20 | 西安交通大学 | Moisture separator reheater heat exchanger bundle experimental device and method |
| CN105866169A (en) * | 2016-05-26 | 2016-08-17 | 中冶焦耐工程技术有限公司 | Primary cooler heat exchange tube test device and method |
| CN205786422U (en) * | 2016-05-26 | 2016-12-07 | 中冶焦耐工程技术有限公司 | A kind of primary cooler heat exchanger tube assay device |
| CN106782020A (en) * | 2017-02-20 | 2017-05-31 | 福州大学 | Diabatic process strengthens self assembly experimental provision and application method |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112782212A (en) * | 2020-12-29 | 2021-05-11 | 安徽应流集团霍山铸造有限公司 | Nuclear power metal heat preservation heat transfer performance test device |
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Application publication date: 20181012 |