CN107576522A - Heat exchanger boiling heat transfer efficiency test platform and method of testing - Google Patents
Heat exchanger boiling heat transfer efficiency test platform and method of testing Download PDFInfo
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- CN107576522A CN107576522A CN201711032344.0A CN201711032344A CN107576522A CN 107576522 A CN107576522 A CN 107576522A CN 201711032344 A CN201711032344 A CN 201711032344A CN 107576522 A CN107576522 A CN 107576522A
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Abstract
The invention discloses a kind of heat exchanger boiling heat transfer efficiency test platform, including boiler and cooling tower, boiler connects compressed air heater, hot-water heater and steam and divides vapour device respectively, and hot-water heater connection hot water water knockout drum, compressed air heater and hot water water knockout drum are all connected with blender；The present invention is when boiling heat transfer is tested, keep vapor flow constant, by the flow for changing gas-liquid mixture, the influence of liquid liquid content, air content to boiling heat transfer coefficient, friction drop is drawn, mass gas content rate is found out and restrains outer boiling heat transfer coefficient, the relation of friction drop with spiral flat tube；Keep the flow of gas-liquid mixture constant, by changing the flow of vapor, find out change and the relation of boiling heat transfer coefficient in spiral flat tube tube bank of vapor flow；Keep above measured value constant, the structural parameters pitch restrained by changing spiral flat tube, to compare influence of the Pipe bundle structure to boiling heat transfer coefficient.
Description
Technical field
The invention belongs to heat exchanger technical field of measurement and test, more particularly to a kind of heat exchanger boiling heat transfer efficiency 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 boiling heat transfer efficiency test platform and method of testing, with solution
Certainly in the prior art heat exchanger precision the problem of.
Technical scheme：To achieve these goals, the present invention uses following technical scheme：
A kind of heat exchanger boiling heat transfer efficiency test platform, including boiler and cooling tower, the boiler connect compressed air respectively
Heater, hot-water heater and steam divide vapour device, and the hot-water heater connects hot water water knockout drum, the compressed air heater
Blender is all connected with hot water water knockout drum, the steam divides vapour device and blender to be all connected with the experiment component that seethes with excitement；
The boiling experiment component connects separator and the second water cooler respectively；The separator connects steam condenser respectively
With the first water condenser；Discharge outlet is respectively connected with second water cooler, steam condenser and the first water condenser；
The cooling water tank is connected with cooling tower, and cooling tower connects the second water cooler, steam condenser and the first water respectively
Condenser；Second water cooler, steam condenser and the first water condenser connect cooling water tank and form loop respectively again；
The compressed air heater is also connected with air accumulator, and the air accumulator is connected with air compressor, and hot-water heater also connects
It is connected to hot water.
Further, it is also respectively provided with steam trap on the compressed air heater and hot-water heater.
Further, the air compressor and air accumulator, boiler and compressed air heater, boiler and hot water heating
Device, boiler and steam divide vapour device, blender and boiling experiment component, boiling experiment component and separator, boiling experiment component and
Ball valve is provided between second water cooler, separator and steam condenser, separator and the first water condenser；Described second
Ball valve is provided between water cooler, the discharge outlet of steam condenser and the first water condenser corresponding thereto.
Further, two groups of regulating valves, two flows are parallel between the compressed air heater and blender successively
Meter and two ball valves, are in series with a ball valve and a check valve again；The steam divides between vapour device and boiling experiment component simultaneously
Two groups of regulating valves, two flowmeters and two ball valves are associated with, are in series with a ball valve again；The hot water water knockout drum and blender it
Between be parallel with two groups of regulating valves, two flowmeters and two ball valves, be in series with a check valve again.
Further, two groups of ball valves, two water pumps and two lists are parallel between the hot water and hot-water heater
To valve；Two groups of ball valves, two water pumps and two check valves are parallel between the cooling water tank and cooling tower, are in series with one again
Individual ball valve.
Further, temperature-measuring port is provided with the air accumulator, hot water and cooling water tank and pressure surveys mouth；Institute
The inlet/outlet pipe road junction for stating boiling experiment component is provided with temperature-measuring port and pressure survey mouth；Second water cooler, steam condensation
The outlet road junction of device and the first water condenser is provided with temperature-measuring port, and enters second between cooling tower and the second water cooler
The pipeline opening of water cooler is provided with temperature-measuring port, and the pipeline opening between cooling tower and steam condenser into steam condenser is set
There is the pipeline opening between temperature-measuring port, cooling tower and the first water condenser into the first water condenser to be provided with temperature-measuring port.
Further, second water cooler and cooling water tank, steam condenser and cooling water tank, the first water cooling
Check valve is provided between condenser and cooling water tank.
Further, it is provided between the cooling tower and the second water cooler, steam condenser and the first water condenser
Total ball valve, and it is respectively arranged with branch road ball valve.
Further, the regulating valve connects the pneumatic valve port of air accumulator.
A kind of heat exchanger boiling heat transfer energy efficiency test method, including water-air system, vapour system and cooling water system,
Comprise the following steps：
In water-air system, hot water water pump extracts hot water out from hot water, through ball after excess pressure, the measurement of temperature
Valve and check valve outflow, enter hot water water knockout drum by the preheating of hot-water heater, reach saturation state, hot water passes through regulation again
Enter blender after valve, flowmeter and ball valve；Air is provided by air compressor, is entered after ball valve by air accumulator and is compressed
Air heater preheats, and subsequent compressed air mixes into blender with hot water；It is real that mixed gas-liquid mixture enters boiling
The heated boiling of element is tested, the gas-liquid mixture flowed out by boiling experiment component enters separator；The vapor and air of gasification enter
Enter in steam condenser, by cooling water temperature, discharge of being weighed after condensation heat release；Unvaporized water enters the first water condenser
In, discharge of being weighed after cooling water temperature is handled；
In vapour system, the saturated vapor as caused by electrically heated boiler is divided into the operation of three tunnels, the heating of a-road-through overcompression air
Device tube side preheats to the air of shell side, is discharged after condensation；Hot water of the another way by the tube side of hot-water heater to shell side
Heated, discharged after condensation；Finally being introduced into steam all the way divides steam, then is directly entered by regulating valve, flowmeter, ball valve
The tube side of boiling experiment component heats to gas-liquid mixture, is allowed to seethe with excitement, thereafter lets out the second water cooler, with cooling
After the cooling water that tower provides carries out condensation heat release, discharge of weighing；
In a cooling system, cooling water water pump extracts cold water from cooling water tank out is divided into the operation of three tunnels by cooling tower cooler,
Condensed all the way into the second water cooler, another way condenses into steam condenser, finally enters the first water condensation all the way
Device is cooled to unvaporized water, and final three road cooling water is returned in cooling water tank.
Beneficial effect：The present invention keeps vapor flow constant, by changing gas-liquid mixture when boiling heat transfer is tested
Flow, draw the influence of liquid liquid content, air content to boiling heat transfer coefficient, friction drop, find out quality gassiness
Rate restrains outer boiling heat transfer coefficient, the relation of friction drop with spiral flat tube；Keep the flow of gas-liquid mixture constant, pass through
Change the flow of vapor, find out change and the relation of boiling heat transfer coefficient in spiral flat tube tube bank of vapor flow；Keep
Above measured value is constant, the structural parameters pitch restrained by changing spiral flat tube, to compare Pipe bundle structure to boiling heat transfer system
Several influences.
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- hot-water heaters, 6- hot water point
Hydrophone, 7- steam divide vapour device, 8- blenders, 9- hot waters, 10- boiling experiment components, 11- separators, the water coolings of 12- second
Device, 13- steam condensers, the water condensers of 14- first, 15- cooling water tanks, 16- condensing towers.
Embodiment
The present invention is further described with reference to embodiment.
As shown in figure 1, a kind of heat exchanger boiling heat transfer efficiency test platform, including boiler 4 and cooling tower 16, the boiler
4 connect compressed air heater 3, hot-water heater 5 and steam respectively divides vapour device 7, and the hot-water heater 5 connects hot water and divides water
Device 6, the compressed air heater 3 and hot water water knockout drum 6 are all connected with blender 8, and the steam divides vapour device 7 and blender 8 equal
Connection boiling experiment component 10；
The boiling experiment component 10 connects the water cooler 12 of separator 11 and second respectively；The separator 11 connects steaming respectively
The water condenser 14 of vapour condenser 13 and first；On second water cooler 12, the water condenser 14 of steam condenser 13 and first
It is respectively connected with discharge outlet；
The cooling water tank 15 is connected with cooling tower 16, and cooling tower 16 connects the second water cooler 12, steam condenser respectively
13 and first water condenser 14；Second water cooler 12, the water condenser 14 of steam condenser 13 and first connect respectively again
Cooling water tank 15 forms loop；
The compressed air heater 3 is also connected with air accumulator 2, and the air accumulator 2 is connected with air compressor 1, hot-water heater 5
It is also associated with hot water 9.
Steam trap is also respectively provided with the compressed air heater 3 and hot-water heater 5.
The air compressor 1 and air accumulator 2, boiler 4 and compressed air heater 3, boiler 4 and hot-water heater 5, pot
Stove 4 and steam divide vapour device 7, blender 8 and boiling experiment component 10, boiling experiment component 10 and separator 11, boiling experiment member
It is all provided between the water cooler 12 of part 10 and second, separator 11 and steam condenser 13, the water condenser 14 of separator 11 and first
It is equipped with ball valve；Second water cooler 12, the discharge outlet of the water condenser 14 of steam condenser 13 and first corresponding thereto it
Between be provided with ball valve.
Two groups of regulating valves, two flowmeters and two are parallel between the compressed air heater 3 and blender 8 successively
Ball valve, a ball valve and a check valve are in series with again；The steam, which is divided between vapour device 7 and boiling experiment component 10, is parallel with two
Group regulating valve, two flowmeters and two ball valves, are in series with a ball valve again；Between the hot water water knockout drum 6 and blender 8 simultaneously
Two groups of regulating valves, two flowmeters and two ball valves are associated with, are in series with a check valve again.
Two groups of ball valves, two water pumps and two check valves are parallel between the hot water 9 and hot-water heater 5；Institute
State and two groups of ball valves, two water pumps and two check valves are parallel between cooling water tank 15 and cooling tower 16, be in series with one again
Ball valve.
Temperature-measuring port is provided with the air accumulator 2, hot water 9 and cooling water tank 15 and pressure surveys mouth；The boiling
The inlet/outlet pipe road junction for rising experiment component 10 is provided with temperature-measuring port and pressure survey mouth；Second water cooler 12, steam condensation
The outlet road junction of the water condenser 14 of device 13 and first is provided with temperature-measuring port, and between the water cooler 12 of cooling tower 16 and second
Pipeline opening into the second water cooler 12 is provided with temperature-measuring port, and steam is entered between cooling tower 16 and steam condenser 13 and is condensed
The pipeline opening of device 13 is provided with the pipeline for entering the first water condenser 14 between temperature-measuring port, the water condenser 14 of cooling tower 16 and first
Mouth is provided with temperature-measuring port.
Second water cooler 12 and cooling water tank 15, steam condenser 13 and cooling water tank 15, the first water cooling
Check valve is provided between condenser 14 and cooling water tank 15.
It is provided between the water cooler 12 of cooling tower 16 and second, the water condenser 14 of steam condenser 13 and first total
Ball valve, and it is respectively arranged with branch road ball valve.
The regulating valve connects the pneumatic valve port of air accumulator 2.
A kind of heat exchanger boiling heat transfer energy efficiency test method, including water-air system, vapour system and cooling water system,
Comprise the following steps：
In water-air system, hot water water pump extracts hot water out from hot water 9, through ball after excess pressure, the measurement of temperature
Valve and check valve outflow, enter hot water water knockout drum 6 by the preheating of hot-water heater 5, reach saturation state, hot water passes through tune again
Enter blender 8 after section valve, flowmeter and ball valve；Air is provided by air compressor 1, is entered after ball valve by air accumulator 2
Enter compressed air heater 3 to preheat, subsequent compressed air mixes into blender 8 with hot water；Mixed gas-liquid mixture enters
The heated boiling of the experiment component 10 that enters to seethe with excitement, the gas-liquid mixture flowed out by boiling experiment component 10 enter separator 11；Gasification
Vapor and air enter in steam condenser 13, by cooling water temperature, discharge of being weighed after condensation heat release；Unvaporized water enters
Enter in the first water condenser 14, discharge of being weighed after cooling water temperature is handled；
In vapour system, the saturated vapor as caused by electrically heated boiler 4 is divided into the operation of three tunnels, the heating of a-road-through overcompression air
The tube side of device 3 preheats to the air of shell side, is discharged after condensation；Heat of the another way by the tube side of hot-water heater 5 to shell side
Water is heated, and is discharged after condensation；Finally being introduced into steam all the way divides steam 7, then direct by regulating valve, flowmeter, ball valve
Tube side into boiling experiment component 10 heats to gas-liquid mixture, is allowed to seethe with excitement, thereafter lets out the second water cooler
12, after the cooling water provided with cooling tower 16 carries out condensation heat release, discharge of weighing；
In a cooling system, cooling water water pump extracts cold water from cooling water tank 15 out is divided into three tunnels fortune by the cooling of cooling tower 16
OK, condensed all the way into the second water cooler 12, another way condenses into steam condenser 13, finally enters first all the way
Water condenser 14 is cooled to unvaporized water, and final three road cooling water is returned in cooling water tank 15.
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 8 in
Hot water is mixed.And as pipe-line system reaches boiling experiment component 10, then discharge or poidometer after separating, cooling down
Amount.
Cooling tower 16, 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.
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 boiling heat transfer efficiency test platform, it is characterised in that：Including boiler（4）And cooling tower（16）, it is described Boiler（4）Compressed air heater is connected respectively（3）, hot-water heater（5）Divide vapour device with steam（7）, the hot-water heater （5）Connect hot water water knockout drum（6）, the compressed air heater（3）With hot water water knockout drum（6）It is all connected with blender（8）, it is described Steam divides vapour device（7）And blender（8）It is all connected with the experiment component that seethes with excitement（10）；The boiling experiment component（10）Separator is connected respectively（11）With the second water cooler（12）；The separator（11）Point Lian Jie not steam condenser（13）With the first water condenser（14）；Second water cooler（12）, steam condenser（13）With First water condenser（14）On be respectively connected with discharge outlet；The cooling water tank（15）It is connected with cooling tower（16）, cooling tower（16）The second water cooler is connected respectively（12）, steam Vapour condenser（13）With the first water condenser（14）；Second water cooler（12）, steam condenser（13）With the first water cooling Condenser（14）Connect cooling water tank respectively again（15）Form loop；The compressed air heater（3）It is also connected with air accumulator（2）, the air accumulator（2）It is connected with air compressor（1）, heat Water heater（5）It is also associated with hot water（9）.
- 2. heat exchanger boiling heat transfer efficiency test platform according to claim 1, it is characterised in that：The compressed air adds Hot device（3）And hot-water heater（5）On be also respectively provided with steam trap.
- 3. heat exchanger boiling heat transfer efficiency test platform according to claim 1, it is characterised in that：The air compressor （1）And air accumulator（2）, boiler（4）With compressed air heater（3）, boiler（4）And hot-water heater（5）, boiler（4）And steaming Vapour divides vapour device（7）, blender（8）With boiling experiment component（10）, boiling experiment component（10）And separator（11）, boiling experiment Element（10）With the second water cooler（12）, separator（11）With steam condenser（13）, separator（11）With the first water condensation Device（14）Between be provided with ball valve；Second water cooler（12）, steam condenser（13）With the first water condenser（14） Ball valve is provided between discharge outlet corresponding thereto.
- 4. heat exchanger boiling heat transfer efficiency test platform according to claim 1, it is characterised in that：The compressed air adds Hot device（3）And blender（8）Between be parallel with two groups of regulating valves, two flowmeters and two ball valves successively, be in series with one again Ball valve and a check valve；The steam divides vapour device（7）With boiling experiment component（10）Between be parallel with two groups of regulating valves, two Flowmeter and two ball valves, are in series with a ball valve again；The hot water water knockout drum（6）And blender（8）Between be parallel with two groups Regulating valve, two flowmeters and two ball valves, are in series with a check valve again.
- 5. heat exchanger boiling heat transfer efficiency test platform according to claim 1, it is characterised in that：The hot water （9）And hot-water heater（5）Between be parallel with two groups of ball valves, two water pumps and two check valves；The cooling water tank（15） And cooling tower（16）Between be parallel with two groups of ball valves, two water pumps and two check valves, be in series with a ball valve again.
- 6. heat exchanger boiling heat transfer efficiency test platform according to claim 1, it is characterised in that：The air accumulator（2）、 Hot water（9）And cooling water tank（15）On be provided with temperature-measuring port and pressure and survey mouth；The boiling experiment component（10）'s Inlet/outlet pipe road junction is provided with temperature-measuring port and pressure surveys mouth；Second water cooler（12）, steam condenser（13）With first Water condenser（14）Outlet road junction be provided with temperature-measuring port, and cooling tower（16）With the second water cooler（12）Between enter Second water cooler（12）Pipeline opening be provided with temperature-measuring port, cooling tower（16）With steam condenser（13）Between enter steam it is cold Condenser（13）Pipeline opening be provided with temperature-measuring port, cooling tower（16）With the first water condenser（14）Between enter the first water condenser （14）Pipeline opening be provided with temperature-measuring port.
- 7. heat exchanger boiling heat transfer efficiency test platform according to claim 1, it is characterised in that：Second water cooling Device（12）And cooling water tank（15）, steam condenser（13）And cooling water tank（15）, the first water condenser（14）And cooling Water tank（15）Between be provided with check valve.
- 8. heat exchanger boiling heat transfer efficiency test platform according to claim 1, it is characterised in that：The cooling tower（16） With the second water cooler（12）, steam condenser（13）With the first water condenser（14）Between be provided with total ball valve, and set respectively It is equipped with branch road ball valve.
- 9. heat exchanger boiling heat transfer efficiency 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 boiling heat transfer energy efficiency test method, including water-air system, vapour system and cooling water system, its It is characterised by, comprises the following steps：In water-air system, hot water water pump is by hot water from hot water（9）Middle extraction, passed through after excess pressure, the measurement of temperature Ball valve and check valve outflow, pass through hot-water heater（5）Preheating enter hot water water knockout drum（6）, reach saturation state, hot water is again By entering blender after regulating valve, flowmeter and ball valve（8）；Air is by air compressor（1）There is provided, after ball valve by Air accumulator（2）Into compressed air heater（3）Preheating, subsequent compressed air enter blender（8）Mixed with hot water；After mixing Gas-liquid mixture enter boiling experiment component（10）Heated boiling, by boiling experiment component（10）The gas-liquid mixture of outflow enters Enter separator（11）；The vapor and air of gasification enter steam condenser（13）In, by cooling water temperature, after condensing heat release Weigh discharge；Unvaporized water enters the first water condenser（14）In, discharge of being weighed after cooling water temperature is handled；In vapour system, by electrically heated boiler（4）Caused saturated vapor is divided into the operation of three tunnels, and a-road-through overcompression air adds Hot device（3）Tube side preheats to the air of shell side, is discharged after condensation；Another way passes through hot-water heater（5）Tube side to shell The hot water of journey is heated, and is discharged after condensation；Finally being introduced into steam all the way divides steam（7）, then by regulating valve, flowmeter, Ball valve is directly entered boiling experiment component（10）Tube side gas-liquid mixture is heated, be allowed to seethe with excitement, thereafter let out Two water coolers（12）, with cooling tower（16）After the cooling water of offer carries out condensation heat release, discharge of weighing；In a cooling system, cooling water water pump by cold water from cooling water tank（15）Cooling tower is passed through in extraction（16）Cooling is divided into three Road is run, all the way into the second water cooler（12）Condensed, another way enters steam condenser（13）Condensation, all the way finally Into the first water condenser（14）Cooled to unvaporized water, final three road cooling water returns to cooling water tank（15）In.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201711032344.0A CN107576522A (en) | 2017-10-30 | 2017-10-30 | Heat exchanger boiling heat transfer efficiency test platform and method of testing |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711032344.0A CN107576522A (en) | 2017-10-30 | 2017-10-30 | Heat exchanger boiling heat transfer efficiency test platform and method of testing |
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| CN107576522A true CN107576522A (en) | 2018-01-12 |
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ID=61041010
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| CN201711032344.0A Pending CN107576522A (en) | 2017-10-30 | 2017-10-30 | Heat exchanger boiling heat transfer efficiency test platform and method of testing |
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| CN113933084A (en) * | 2021-10-20 | 2022-01-14 | 南京工程学院 | Heat exchanger heat exchange experiment test platform and test method |
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