CN107664653A - Heat exchanger condensation heat exchange experiment test platform and test method - Google Patents
Heat exchanger condensation heat exchange experiment test platform and test method Download PDFInfo
- Publication number
- CN107664653A CN107664653A CN201711032082.8A CN201711032082A CN107664653A CN 107664653 A CN107664653 A CN 107664653A CN 201711032082 A CN201711032082 A CN 201711032082A CN 107664653 A CN107664653 A CN 107664653A
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- heat exchanger
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- 238000002474 experimental method Methods 0.000 title claims abstract description 58
- 238000009833 condensation Methods 0.000 title claims abstract description 32
- 230000005494 condensation Effects 0.000 title claims abstract description 32
- 238000012360 testing method Methods 0.000 title claims abstract description 22
- 238000010998 test method Methods 0.000 title claims description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 59
- 238000001816 cooling Methods 0.000 claims abstract description 29
- 239000000498 cooling water Substances 0.000 claims description 43
- 238000005345 coagulation Methods 0.000 claims description 38
- 230000015271 coagulation Effects 0.000 claims description 38
- 238000012546 transfer Methods 0.000 claims description 23
- 230000001105 regulatory effect Effects 0.000 claims description 15
- 239000007788 liquid Substances 0.000 claims description 4
- -1 and vapor Substances 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 3
- 238000000926 separation method Methods 0.000 claims description 3
- 230000008859 change Effects 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 description 6
- 230000006872 improvement Effects 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 235000019628 coolness Nutrition 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000035800 maturation Effects 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Classifications
-
- 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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M99/00—Subject matter not provided for in other groups of this subclass
- G01M99/002—Thermal testing
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Testing Resistance To Weather, Investigating Materials By Mechanical Methods (AREA)
Abstract
The invention discloses a condensation heat exchange experiment test platform of a heat exchanger, which comprises a boiler and a cooling tower, wherein the boiler is respectively connected with a compressed air heater and a steam distributor, the compressed air heater and the steam distributor are both connected with a mixer, the mixer is connected with a condensation experiment element, the condensation experiment element is connected with a separator, the separator is respectively connected with a steam condenser and a water cooler, and the steam condenser and the water cooler are both connected with water outlets; in the condensation heat exchange experiment, the flow of the water vapor is kept unchanged, and the relationship between the Reynolds number and the friction coefficient, the relationship between the pressure drop and the mass gas content and the heat flow density are obtained by changing the flow of the non-condensable gas air; keeping the content of the non-condensable gas unchanged, and finding out the relation between the change of the flow of the water vapor and the heat exchange coefficient of the heat exchanger by changing the flow of the water vapor; and keeping the measured value unchanged, and comparing the influence of the structure on the condensation heat exchange coefficient by changing the surface geometric characteristics of the heat exchanger.
Description
Technical field
The invention belongs to heat exchanger technical field of measurement and test, more particularly to a kind of heat exchanger condensation heat transfer experiment test platform with
And method of testing.
Background technology
As modern science and technology include the hair of computer technology, the communication technology, sensing technology, modern control theory etc.
Exhibition, the gradual maturation of modern detecting, brand-new measuring technology have high accuracy, real-time height, friendly interface, easy to operate etc.
Advantage, it is widely used in actual production and laboratory research；In recent years, as industrial production will for heat exchanger precision
The continuous improvement asked, the development and research of heat exchanger performance test platform develop quickly.
The content of the invention
Goal of the invention：The invention provides a kind of heat exchanger condensation heat transfer experiment test platform and method of testing, with solution
Certainly the problems of the prior art.
Technical scheme：To achieve these goals, the present invention uses following technical scheme：
A kind of heat exchanger condensation heat transfer experiment test platform, including boiler and cooling tower, the boiler connect compressed air respectively
Heater and steam divide vapour device, and compressed air heater and steam divide vapour device to be all connected with blender, blender connection coagulation experiment
Element, coagulation experiment element connection separator, separator connect steam condenser and water cooler, steam condenser and water respectively
Discharge outlet is respectively connected with cooler；
The coagulation experiment element, steam condenser and water cooler are also respectively connected with cooling water tank；
The cooling water tank connects cooling tower, and the cooling tower connects cooling water separator, steam condenser and water cooling respectively
But device, the cooling water separator connection coagulation experiment element；
The compressed air heater is also associated with air accumulator, air accumulator connection air compressor.
Further, it is additionally provided with steam trap on the compressed air heater.
Further, the boiler and compressed air heater, blender and coagulation experiment element, coagulation experiment element and
Ball valve is provided between separator, separator and steam condenser, separator and water cooler；The steam condenser and water
Ball valve is provided between the discharge outlet of cooler corresponding thereto.
Further, the compressed air heater and blender, steam, which are divided between vapour device and blender, is parallel with two
Group regulating valve, two flowmeters and two ball valves, then it is sequentially connected in series a ball valve and a check valve.
Further, the coagulation experiment element and cooling water tank, steam condenser and cooling water tank, water cooler
Check valve is provided between cooling water tank.
Further, it is described cooling water separator and coagulation experiment element between be parallel with successively two groups of regulating valves, two
Flowmeter and two ball valves, then a ball valve of connecting；Be parallel with successively between the cooling water tank and cooling tower two groups of ball valves,
Two water pumps and two check valves, then a ball valve of connecting.
Further, temperature-measuring port is provided with the air accumulator and cooling water tank and pressure surveys mouth；It is described to condense in fact
The inlet/outlet pipe road junction for testing element is provided with temperature-measuring port and pressure survey mouth.
Further, it is provided with total tune between the cooling tower and cooling water separator, steam condenser and water cooler
Valve is saved, and is additionally provided with branch road ball valve respectively.
Further, the regulating valve connects the pneumatic valve port of air accumulator.
A kind of heat exchanger condensation heat transfer experimental test procedures, comprise the following steps：Start air compressor, regulation supply pressure
Power, regulating valve is supplied, the compressed air heater of compressed air, by regulating valve, flowmeter, enter gas after control valve
Liquid mixer enters coagulation experiment element tube side；Discharged again after separator outdoor；Start cooling tower and water pump, cooling water
Coagulation experiment element shell-side is entered from cooling water separator；Finally, starting trouble, steam is divided into two-way, steam enters all the way
Enter to compressed air heater, compressed air heated, compressed air is heated to 80 DEG C, steam condensation Cheng Shui, from dredge
Hydrophone excludes；Another way steam is mixed into coagulation experiment element tube side with compressed air；After temperature, pressure stability, open
Begin to test；After terminating in pipe, part vapor is condensed into water, and vapor, water and air are sent into separator enters
Row separation, condensate are discharged into water cooler from separator and are then exhausted from, weigh；Vapor and air are then exhausted from by steam condenser
It is outdoor.
Beneficial effect：During condensation heat transfer experiment of the present invention, keep vapor flow constant, by changing incoagulable gas sky
The flow of gas, the relation between Reynolds number and coefficient of friction is obtained, the relation between pressure drop and mass gas content rate and heat flow density；
Keep incoagulable gas content constant, by changing the flow of vapor, the change and heat exchanger of finding out vapor flow exchange heat
The relation of coefficient；Keep above measured value constant, by changing heat exchanger surface geometric properties, carry out comparative structure to condensation heat transfer
The influence of coefficient.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention；
Wherein：1- air compressors, 2- air accumulators, 3- compressed air heaters, 4- boilers, 5- steam divide vapour device, 6- blenders,
7- coagulation experiment elements, 8- separators, 9- cooling water separators, 10- steam condensers, 11- water coolers, 12- cooling water water
Case, 13- cooling towers.
Embodiment
The present invention is further described with reference to embodiment.
As shown in figure 1, a kind of heat exchanger condensation heat transfer experiment test platform, including boiler 4 and cooling tower 13, the boiler
4 connect compressed air heater 3 and steam divides vapour device 5 respectively, and compressed air heater 3 and steam divide vapour device 5 to be all connected with mixing
Device 6, blender 6 connect coagulation experiment element 7, and coagulation experiment element 7 connects separator 8, and separator 8 connects steam condensation respectively
Discharge outlet is respectively connected with device 10 and water cooler 11, steam condenser 10 and water cooler 11；
The coagulation experiment element 7, steam condenser 10 and water cooler 11 are also respectively connected with cooling water tank 12；
The cooling water tank 12 connects cooling tower 13, and the cooling tower 13 connects cooling water separator 9, steam condenser respectively
10 and water cooler 11, the cooling water separator 9 connects coagulation experiment element 7；
The compressed air heater 3 is also associated with air accumulator 2, and air accumulator 2 connects air compressor 1.
Steam trap is additionally provided with the compressed air heater 3.
The boiler 4 and compressed air heater 3, blender 6 and coagulation experiment element 7, coagulation experiment element 7 and separation
Ball valve is provided between device 8, separator 8 and steam condenser 10, separator 8 and water cooler 11；The steam condenser
Ball valve is provided between 10 and the discharge outlet corresponding thereto of water cooler 11.
The compressed air heater 3 and blender 6, steam, which are divided between vapour device 5 and blender 6, is parallel with two groups of regulations
Valve, two flowmeters and two ball valves, then it is sequentially connected in series a ball valve and a check valve.
The coagulation experiment element 7 and cooling water tank 12, steam condenser 10 and cooling water tank 12, water cooler 11
Check valve is provided between cooling water tank 12.
It is described cooling water separator 9 and coagulation experiment element 7 between be parallel with successively two groups of regulating valves, two flowmeters and
Two ball valves, then a ball valve of connecting；Be parallel with successively between the cooling water tank 12 and cooling tower 13 two groups of ball valves, two
Water pump and two check valves, then a ball valve of connecting.
Temperature-measuring port is provided with the air accumulator 2 and cooling water tank 12 and pressure surveys mouth；The coagulation experiment element 7
Inlet/outlet pipe road junction be provided with temperature-measuring port and pressure and survey mouth.
Total regulation is provided between the cooling tower 13 and cooling water separator 9, steam condenser 10 and water cooler 11
Valve, and branch road ball valve is additionally provided with respectively.
The regulating valve connects the pneumatic valve port of air accumulator 2.
A kind of heat exchanger condensation heat transfer experimental test procedures, comprise the following steps：Start air compressor 1, regulation supply
Pressure, regulating valve is supplied, the compressed air heater 3 of compressed air is laggard by regulating valve, flowmeter, control valve
Enter air and liquid mixer 6 and enter the pipe side of coagulation experiment element 7；Discharged again after separator 8 outdoor；Start cooling tower 13 and water
Pump, cooling water enter the shell-side of coagulation experiment element 7 from cooling water separator 9；Finally, starting trouble 4, steam is divided into two
Road, all the way steam enter compressed air heater 3, compressed air is heated, compressed air is heated to 80 DEG C, steam
Water is condensed into, is excluded from steam trap；Another way steam is mixed into the pipe side of coagulation experiment element 7 with compressed air；Treat temperature,
After pressure stability, start to test；After terminating in pipe, part vapor is condensed into water, and vapor, water and air are sent
Enter to separator 8 and separated, condensate is discharged into water cooler 11 from separator 8 and is then exhausted from, and weighs；Vapor and air pass through
Steam condenser 10 is then exhausted from outdoor.
Wherein：1- air compressors, 2- air accumulators, 3- compressed air heaters, 4- boilers, 5- steam divide vapour device, and 6- is mixed
Clutch, 7- coagulation experiment elements, 8- separators, 9- cooling water separators, 10- steam condensers, 11- water coolers, 12- coolings
Water tank, 13- cooling towers.
Vapor can smoothly enter real after the measurement such as excess temperature, pressure, flow as caused by electrically heated boiler 4
Test pipeline section, smoothly the compressed air and hot water of preheating and heating respective line, and finally discharge after heat exchanger condenses it is outdoor or
Weighing.
Air compressor 1 can by the air of voltage stabilizing by metering, steam heating after smoothly be sent into air and liquid mixer 6 in
Hot water is mixed.And as pipe-line system reaches shell-and-tube heat exchanger, then discharge or poidometer after separating, cooling down
Amount.
Cooling tower 13, which possesses, meets steam condensation segment, other equipment in the maximum cooling water inflow and system needed for water cooling section
Cool down maximum amount of water.And corresponding cooling water pump disclosure satisfy that the function of conveying and the recycling of cooling water.
When condensation heat transfer is tested, keep vapor flow constant, by changing the flow of incoagulable gas air, obtain thunder
Relation between promise number and coefficient of friction, the relation between pressure drop and mass gas content rate and heat flow density.
When condensation heat transfer is tested, keep incoagulable gas content constant, by changing the flow of vapor, find out vapor
The change of flow and the relation of the heat exchanger coefficient of heat transfer.
In coagulation experiment, keep above measured value constant, by changing heat exchanger surface geometric properties, carry out comparative structure
Influence to condensation heat transfer coefficient.
Pneumatic control valve disclosure satisfy that to carrying out flow more from boiler, water tank, the steam of cooling tower, hot water, cold water
Adjust accurately and easily.
Described above is only the preferred embodiment of the present invention, it should be pointed out that：For the ordinary skill people of the art
For member, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications also should
It is considered as protection scope of the present invention.
Claims (10)
- A kind of 1. heat exchanger condensation heat transfer experiment test platform, it is characterised in that：Including boiler（4）And cooling tower（13）, it is described Boiler（4）Compressed air heater is connected respectively（3）Divide vapour device with steam（5）, compressed air heater（3）Divide vapour device with steam （5）It is all connected with blender（6）, blender（6）Connect coagulation experiment element（7）, coagulation experiment element（7）Connect separator（8）, Separator（8）Steam condenser is connected respectively（10）And water cooler（11）, steam condenser（10）And water cooler（11）On It is respectively connected with discharge outlet；The coagulation experiment element（7）, steam condenser（10）And water cooler（11）It is also respectively connected with cooling water tank（12）；The cooling water tank（12）Connect cooling tower（13）, the cooling tower（13）Connection cooling water separator respectively（9）, steam Vapour condenser（10）And water cooler（11）, the cooling water separator（9）Connect coagulation experiment element（7）；The compressed air heater（3）It is also associated with air accumulator（2）, air accumulator（2）Connect air compressor（1）.
- 2. heat exchanger condensation heat transfer experiment test platform according to claim 1, it is characterised in that：The compressed air adds Hot device（3）On be additionally provided with steam trap.
- 3. heat exchanger condensation heat transfer experiment test platform according to claim 1, it is characterised in that：The boiler（4）With Compressed air heater（3）, blender（6）With coagulation experiment element（7）, coagulation experiment element（7）And separator（8）, separation Device（8）With steam condenser（10）, separator（8）And water cooler（11）Between be provided with ball valve；The steam condenser （10）And water cooler（11）Ball valve is provided between discharge outlet corresponding thereto.
- 4. heat exchanger condensation heat transfer experiment test platform according to claim 1, it is characterised in that：The compressed air adds Hot device（3）And blender（6）, steam divide vapour device（5）And blender（6）Between be parallel with two groups of regulating valves, two flowmeters With two ball valves, then a ball valve and a check valve are sequentially connected in series.
- 5. heat exchanger condensation heat transfer experiment test platform according to claim 1, it is characterised in that：The coagulation experiment member Part（7）And cooling water tank（12）, steam condenser（10）And cooling water tank（12）, water cooler（11）And cooling water tank （12）Between be provided with check valve.
- 6. heat exchanger condensation heat transfer experiment test platform according to claim 1, it is characterised in that：The cooling moisture water Device（9）With coagulation experiment element（7）Between be parallel with two groups of regulating valves, two flowmeters and two ball valves successively, then connect one Individual ball valve；The cooling water tank（12）And cooling tower（13）Between be parallel with two groups of ball valves, two water pumps and two lists successively To valve, then a ball valve of connecting.
- 7. heat exchanger condensation heat transfer experiment test platform according to claim 1, it is characterised in that：The air accumulator（2） And cooling water tank（12）On be provided with temperature-measuring port and pressure and survey mouth；The coagulation experiment element（7）Inlet/outlet pipe road junction it is equal It is provided with temperature-measuring port and pressure surveys mouth.
- 8. heat exchanger condensation heat transfer experiment test platform according to claim 1, it is characterised in that：The cooling tower（13） With cooling down water separator（9）, steam condenser（10）And water cooler（11）Between be provided with total regulating valve, and also set up respectively There is branch road ball valve.
- 9. heat exchanger condensation heat transfer experiment test platform according to claim 1, it is characterised in that：The regulating valve connects Air accumulator（2）Pneumatic valve port.
- 10. a kind of heat exchanger condensation heat transfer experimental test procedures, it is characterised in that comprise the following steps：Start air compressor （1）, supply gas pressure is adjusted, regulating valve is supplied, the compressed air heater of compressed air（3）, pass through regulating valve, flow Count, enter air and liquid mixer after control valve（6）Enter coagulation experiment element（7）Pipe side；Pass through separator again（8）After discharge room Outside；Start cooling tower（13）And water pump, cooling water from cooling water separator（9）Enter coagulation experiment element（7）Shell-side；Most Afterwards, starting trouble（4）, steam is divided into two-way, steam enters compressed air heater all the way（3）, compressed air is carried out Heating, 80 DEG C, steam condensation Cheng Shui are heated to by compressed air, are excluded from steam trap；Another way steam mixes with compressed air Enter coagulation experiment element（7）Pipe side；After temperature, pressure stability, start to test；After terminating in pipe, part water Steam is condensed into water, and vapor, water and air are sent into separator（8）Separated, condensate is from separator（8）It is discharged into Water cooler（11）It is then exhausted from, weighs；Vapor and air pass through steam condenser（10）It is then exhausted from outdoor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201711032082.8A CN107664653A (en) | 2017-10-30 | 2017-10-30 | Heat exchanger condensation heat exchange experiment test platform and test method |
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| CN201711032082.8A CN107664653A (en) | 2017-10-30 | 2017-10-30 | Heat exchanger condensation heat exchange experiment test platform and test method |
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| CN107664653A true CN107664653A (en) | 2018-02-06 |
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| CN201711032082.8A Pending CN107664653A (en) | 2017-10-30 | 2017-10-30 | Heat exchanger condensation heat exchange experiment test platform and test method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110487362A (en) * | 2019-08-20 | 2019-11-22 | 中冶赛迪技术研究中心有限公司 | A kind of steam flow measurement calibration equipment and its adjusting method |
| CN110542324A (en) * | 2019-09-06 | 2019-12-06 | 浙江浙能技术研究院有限公司 | Device for improving running efficiency of parallel vacuum-pumping system and control method thereof |
| CN111307485A (en) * | 2020-03-11 | 2020-06-19 | 上海交通大学 | Vapor cooling screen performance test system based on evaporation calorimeter |
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Application publication date: 20180206 |