CN2765173Y - Rapid measurement device for thermal characteristics of solar heat collector - Google Patents
Rapid measurement device for thermal characteristics of solar heat collector Download PDFInfo
- Publication number
- CN2765173Y CN2765173Y CNU200520000938XU CN200520000938U CN2765173Y CN 2765173 Y CN2765173 Y CN 2765173Y CN U200520000938X U CNU200520000938X U CN U200520000938XU CN 200520000938 U CN200520000938 U CN 200520000938U CN 2765173 Y CN2765173 Y CN 2765173Y
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- heat collector
- water tank
- heat
- gate valve
- solar
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Abstract
The utility model relates to a rapid measurement device for measuring the thermal characteristic of a solar heat collector. A test desk of the device comprises a water tank of which the bottom is connected with a drain pipe and a pump; the lateral face of the water tank is provided with an overflow pipe and a heat exchanger; the left side of the water tank is connected with a circulating water pump and apposed by-pass valves by gate valves, is connected with a filter, a flow meter and a needle valve and then is connected with a heat collector of which the outlet is also connected with a vent valve and two gate valves, wherein one path is also connected with the water tank. A fan, an anemometer and a white instrument shelter are arranged at the place which is close to the heat collector; the plane of the heat collector is provided with a pyranometer and a solar corona. The system is used to adjust the control flow to keep constant. A data gathering machine gathers relevant flow, total radiation intensity and the inlet and the outlet temperature of the heat collector, environmental temperature and wind speed. The heat collector is adjusted by the solar corona to cause an included angle which is formed by the direct solar radiation and a normal line of the heat collector to be smaller than 5 DEG. The measuring method mainly considers that the glass of a vacuum heat collecting pipe and water and metal in the heat collector have a larger heat lag.
Description
Technical field
The present invention relates to a kind of heat performance of solar heat collector rapid measurement device, belong to solar energy heat utilization field.
Background technology
The testing standard of existing solar thermal collector is based on steady-state method of test, measures stable state or metastable state momentary efficiency and heat collector heat loss coefficient that content comprises heat collector.Steady-state method of test is very high to the requirement of meteorologic parameter.For example: (it is fine in test period that GB/T 4271-2000 requires, and solar irradiation intensity is at 800W/m for the enough high and stable radiation and the environment temperature of strict and steady etc.
2More than, in experimental period the deviation value of solar irradiation intensity be no more than mean value ± 50W, the variation of heat collector ambient temperature can not surpass mean value ± 1K at test period.In the operating temperature range of heat collector, get four uniform fluid inlet temperatures in interval at least.One of them should ambient air temperature ± 3 ℃ in).Because outdoor test meteorological condition can't artificially be controlled, it is fixed that the time of test need come according to the meteorological condition of locality, in the area that has, because the restriction of weather conditions can't be carried out in some test in season at all.Thereby, adopt this method to test, the cycle can be very long sometimes.
In practice, heat collector mostly is to be operated in the dynamic atmospheric environment, is not inconsistent with the test condition of prescribed by standard, is used in the thermal output meeting that the result who obtains under the steady state conditions predicts dynamic operation condition and produces certain error.For thermal behavior that can faster more accurate prediction heat collector with instruct the design of heat collector, need the device for quick testing and the method for testing of a kind of heat performance of solar heat collector of research badly.
Summary of the invention:
The purpose of this utility model is that a kind of heat performance of solar heat collector rapid measurement device will be provided, utilize solar thermal collector that outwork to input variable: relevant parameter is determined in the response of solar irradiation intensity, environment temperature, heat collector temperature in transient change, utilizes the parameter that has obtained to combine with corresponding mathematical model and algorithm to realize the prediction that heat collector is exported afterwards.
The structure of heat performance of solar heat collector rapid measurement device is:
There is a baffle plate (30) inside of the water tank of test board (1), the top connects a filling pipe and a gate valve (3), run-down pipe (4) and heat exchanger (5) are equipped with in the side, tapping pipe and a gate valve (6) and a pipeline are equipped with in water tank (1) bottom, connect gate valve (7) and water pump (8) successively, gate valve (9), water tank (1) left side connects gate valve (10) and water circulating pump (11), connect simultaneously by-pass valve arranged side by side (12) again, connect filtrator (13) then, flowmeter (2) and needle-valve (14), be connected in the import (17) of heat collector (16) by a viewport (15), its outlet (18) is connected to water tank (1) again after connecting an air release (19) and gate valve (20 and 21).Locate to be equipped with temperature probe (27) (28) and one pyramometer (24) is installed in import (17) and outlet (18), a corona (26) is installed in same plane in the centre position of heat collector plane one side.Installation one blower fan (22) and anemoscope (25) near test board, in according to test board 15m, greater than white thermometer screen (23) is installed in the scope of 1m, interior dress is surveyed the thermometer (29) of environment temperature according to ground.Import of heat collector (17) and outlet (18) all will be done insulation.
The advantage of heat performance of solar heat collector rapid measurement device is:
It has measurement effectively, Control Flow and temperature, its tracking means can be at position angle and elevation angle both direction tracking position of sun, because this method requires the heat collector temperature in and keeps constant, so the water bath with thermostatic control or the water circulation system of not serviceability temperature fluctuation of test board≤± 0.1 ℃.
Description of drawings
Fig. 1 heat performance of solar heat collector rapid measurement device synoptic diagram
Embodiment
By the test board of Fig. 1 proving installation by heat-transfer working medium forced circulation unit, temperature control unit, flow controlling unit, temperature measurement unit, the flow measurement unit, solar radiation control, measuring unit, 7 parts such as sun location tracking control module are formed.
Water tank (1) is 140 liters of models, one baffle plate (30) is arranged in it, the top connects a filling pipe and a gate valve (3), run-down pipe (4) and heat exchanger (5) are equipped with in water tank (1) side, tapping pipe (being with a gate valve) (6) and pipeline are equipped with in water tank (1) bottom, and it is connected gate valve (7) water pump (8) and gate valve (9) successively, water tank (1) left side connects a variable valve (10) again and connects water circulating pump (11) again, connect a by-pass valve (12) again side by side, connect filtrator (13) then, one flowrate control valve (being needle-valve) (14), and flowmeter (2), be connected in the import (17) of heat collector (16) through viewport (15), its outlet (18) connects an air release (19) and gate valve (20), and the while again and connect another gate valve (21) and be connected in water tank (1).
Locate to be equipped with temperature probe (27) (28) and one pyramometer (24) is installed in import (17) and outlet (18), a corona (26) is installed in same plane in the centre position of heat collector plane one side.Installation one blower fan (22) and anemoscope (25) near test board.In according to test board 15m, greater than white thermometer screen (23) is installed in the scope of 1m, interior dress is surveyed the thermometer (29) of environment temperature according to ground.Import of heat collector (17) and outlet (18) all will be done insulation.
Temperature control unit comprises water tank (1), filling pipe (3) and heat interchanger (5).Temperature measurement unit comprises platinum-resistance thermometer (Pt100 type), and it is used to measure heat collector (16) import (17), the temperature of outlet (18), and another is used for measures ambient temperature; The flow measurement unit comprises electromagnetic flowmeter (model: COPA-XE DE43F type) be used to measure the flow of heat collector (16); Flow controlling unit comprises that needle-valve (14) is used to regulate flow, water circulating pump (11) (model Wilo-Star-RS25/6) and water pump (8).Solar radiation control and measuring unit comprise that sunshading board (figure is expression not), pyramometer (model TBQ-2-B) are used for measuring the total solar radiation that drops on the heat collector (16).The sun location tracking control module comprises corona (26) rotary stand and angle protractor (figure is expression not).Data acquisition system adopted HP34970A type Hewlett-Packard Acquisition Instrument.
The water pump (8) of opening water tank (1) makes a side water that is connected with the water tank outlet concordant with baffle plate (30) top.Guarantee that systemic circulation water pump (11) suction pressure is constant, help stability of flow, open air release (19) ON cycle water pump (11), when the water of air release (19) discharge by the time is not with gas, just close air release (19).Just the flow of adjusting system arrives setting value (if the throughput ratio of setting is less, can adjust the aperture of by-pass valve) reach the flow of setting in the further aperture of metering pin valve (14), log-on data Acquisition Instrument (not drawing among the figure) checks whether the work of each sensor is normal then, whether cross the flow of checking this system in 20 minutes during this period of time is stabilized in the flow range of setting, just can begin experiment if flow is suitable, otherwise should readjust flow.(at this moment also available computers control is adjusted flow automatically to setting value)
Because requirement of experiment comprises system information as much as possible, in test process, to make and drop on upward solar irradiation intensity of heat collector (16), the variation of heat collector temperature in is big as far as possible, so in test process, will raise (covering) shadow shield (not drawing among the figure), and otherwise (shutting) heat interchanger (5) of opening that stops changes it to regulate the heat collector temperature in the working range of not stopping every 5～20 minutes.
Claims (1)
1. heat performance of solar heat collector device for quick testing, it is characterized in that, one baffle plate (30) is arranged in the water tank of its test board (1), the top connects a filling pipe and a gate valve (3), run-down pipe (4) and heat exchanger (5) are equipped with in the side, a tapping pipe and a gate valve (6) are equipped with in water tank (1) bottom, connect gate valve (7) and water pump (8) successively, gate valve (9), water tank (1) left side connects gate valve (10) and water circulating pump (11), connect simultaneously by-pass valve arranged side by side (12) again, connect filtrator (13) then, flowmeter (2) and needle-valve (14), be connected in the import (17) of heat collector (16) by a viewport (15), its outlet (18) is connected to water tank (1) again after connecting an air release (19) and gate valve (20 and 21), locate to be equipped with temperature probe (27) (28) and one pyramometer (24) is installed in import (17) and outlet (18) in the centre position of heat collector plane one side, one corona (26) is installed in same plane, installation one blower fan (22) and anemoscope (25) near test board, in according to test board 15m, be not less than according to the ground height white thermometer screen (23) is installed in the scope of 1m, the thermometer (29) of interior dress measures ambient temperature, import of heat collector (17) and outlet (18) all will be done insulation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200520000938XU CN2765173Y (en) | 2005-01-18 | 2005-01-18 | Rapid measurement device for thermal characteristics of solar heat collector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200520000938XU CN2765173Y (en) | 2005-01-18 | 2005-01-18 | Rapid measurement device for thermal characteristics of solar heat collector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2765173Y true CN2765173Y (en) | 2006-03-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200520000938XU Expired - Lifetime CN2765173Y (en) | 2005-01-18 | 2005-01-18 | Rapid measurement device for thermal characteristics of solar heat collector |
Country Status (1)
| Country | Link |
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| CN (1) | CN2765173Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102706574A (en) * | 2012-03-20 | 2012-10-03 | 桑夏太阳能股份有限公司 | Test device for groove type solar thermal collector |
| CN106940092A (en) * | 2017-03-24 | 2017-07-11 | 广州安博检测有限公司 | A kind of solar thermal collector thermal efficiency open loop water system |
| CN109654755A (en) * | 2018-11-12 | 2019-04-19 | 国网节能服务有限公司 | A kind of solar heat collector settling time test method |
-
2005
- 2005-01-18 CN CNU200520000938XU patent/CN2765173Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102706574A (en) * | 2012-03-20 | 2012-10-03 | 桑夏太阳能股份有限公司 | Test device for groove type solar thermal collector |
| CN102706574B (en) * | 2012-03-20 | 2015-01-07 | 桑夏太阳能股份有限公司 | Test device for groove type solar thermal collector |
| CN106940092A (en) * | 2017-03-24 | 2017-07-11 | 广州安博检测有限公司 | A kind of solar thermal collector thermal efficiency open loop water system |
| CN106940092B (en) * | 2017-03-24 | 2019-04-09 | 广州安博检测有限公司 | A kind of solar thermal collector thermal efficiency open loop water system |
| CN109654755A (en) * | 2018-11-12 | 2019-04-19 | 国网节能服务有限公司 | A kind of solar heat collector settling time test method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Effective date of abandoning: 20090617 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |