CN106940329A - It is a kind of to measure the experimental provision that the air amount of leaking into condenses influence on steam - Google Patents
It is a kind of to measure the experimental provision that the air amount of leaking into condenses influence on steam Download PDFInfo
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- CN106940329A CN106940329A CN201710118541.8A CN201710118541A CN106940329A CN 106940329 A CN106940329 A CN 106940329A CN 201710118541 A CN201710118541 A CN 201710118541A CN 106940329 A CN106940329 A CN 106940329A
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- Prior art keywords
- steam
- pipe
- leaking
- influence
- experimental provision
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- 239000002826 coolant Substances 0.000 claims abstract description 28
- 238000005259 measurement Methods 0.000 claims abstract description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 20
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 claims description 5
- 230000005494 condensation Effects 0.000 claims description 4
- 238000009833 condensation Methods 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims description 4
- 230000008676 import Effects 0.000 claims description 4
- 238000010025 steaming Methods 0.000 claims 1
- 238000012546 transfer Methods 0.000 abstract description 7
- 239000000498 cooling water Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 238000001816 cooling Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000005431 greenhouse gas Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000004451 qualitative analysis Methods 0.000 description 1
- 238000004445 quantitative analysis Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 239000007787 solid Substances 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
- G01N25/14—Investigating or analyzing materials by the use of thermal means by using distillation, extraction, sublimation, condensation, freezing, or crystallisation
- G01N25/142—Investigating or analyzing materials by the use of thermal means by using distillation, extraction, sublimation, condensation, freezing, or crystallisation by condensation
-
- 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
-
- 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
- G01N25/56—Investigating or analyzing materials by the use of thermal means by investigating moisture content
- G01N25/58—Investigating or analyzing materials by the use of thermal means by investigating moisture content by measuring changes of properties of the material due to heat, cold or expansion
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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)
- Examining Or Testing Airtightness (AREA)
Abstract
The experimental provision that the air amount of leaking into condenses influence on steam is measured the invention provides a kind of, the experimental provision includes vapour source, coolant jacket, air gauge, air leakage pipe, steam leak-off valve and flowmeter, wherein, connected between the vapour source and coolant jacket by steam pipe；Condenser pipe is set in the steam pipe；Air gauge is set above the coolant jacket；The coolant jacket passes through air leakage pipe connection flow gauge；Steam leak-off valve is provided with the air leakage pipe.The measurement air amount of leaking into of the offer of the present invention condenses the experimental provision of influence on steam, it can be measured under varying experimental conditions, the air amount of leaking into of condenser, and influence for the heat transfer property of condenser under the conditions of follow-up observation measure amount of leaking into provides condition.
Description
Technical field
The invention belongs to condenser experiment field of measuring technique, it is related to a kind of measurement air amount of leaking into and influence is condensed on steam
Experimental provision.
Background technology
Heat exchanger is widely used in the industry, particularly important to thermal power generation.For active response national " 13 " planning
Specified in " advance mechanism such as establishing techniques, energy consumption, environmental protection, quality " policy, for the purpose of safe and efficient, energy-conserving and environment-protective,
The discharge of the development of the new technology of energy industry, effectively control greenhouse gases is promoted, the heat exchange property of heat exchanger is improved, is finally
Realize that target for energy-saving and emission-reduction establishes solid foundation.Make to keep higher heat transfer efficiency to reach energy-saving, raising machine in condenser
The important method of group performance driving economy.Inevitably there is air to leak into system, hollow tolerance pair in condenser running
The influence of condenser heat transfer coefficient is extremely complex, how influence one of the hollow tolerance of qualitative and quantitative analysis to condenser heat transfer coefficient
It is directly an importance of condenser Study on Heat Transfer.Condenser is the important heat-exchange apparatus of power station unit, influences it
The factor of diabatic process is also a lot, wherein the air capacity for leaking into condenser is a very important factor, hollow tolerance change
Very big on the influence of condenser heat transfer property, its form of expression is also extremely complex.Therefore, hollow tolerance is influence condenser heat exchange
Key factor, is highly desirable to understand its influence individually to Performance of Condensers.
The content of the invention
In order to overcome the defect that above-mentioned prior art is present, the air amount of leaking into is measured it is an object of the invention to provide one kind
The experimental provision of influence is condensed on steam, it can be measured under varying experimental conditions, the air amount of leaking into of condenser, and be
The follow-up influence for observing the heat transfer property of condenser under the conditions of the measure amount of leaking into provides condition.
The present invention is to be achieved through the following technical solutions：
A kind of to measure the experimental provision that the air amount of leaking into condenses influence on steam, the experimental provision includes vapour source, cooling
Set, pressure gauge, air leakage pipe and flowmeter, wherein,
Connected between the vapour source and coolant jacket by steam pipe, condenser pipe is set in steam pipe；Pressure gauge is set
Above coolant jacket；Air leakage pipe is provided with below coolant jacket, steam leak-off valve is provided with air leakage pipe, steam leak-off valve passes through connecting tube and flow
Meter is connected.
Preferably, the vapour source is evaporator.
It is further preferred that connect a booster pump by water inlet pipe on the evaporator, be provided with the water inlet pipe into
Water valve.
It is further preferred that the evaporator is provided with heating rod.
It is further preferred that being additionally provided with return pipe between the evaporator and the coolant jacket, set on the return pipe
Put back into water valve.
It is further preferred that the flow is calculated as suspended body flowmeter.
Preferably, condenser pipe import and export is respectively arranged at two ends with condensed water water inlet pipe and condensed water outlet pipe.
Compared with prior art, the present invention has following beneficial technique effect：
The measurement air amount of leaking into that the present invention is provided condenses the experimental provision of influence on steam, when steam is flowed into coolant jacket
When, due to being passed through cooling water in condenser pipe, under the cooling effect of cooling water, steam condenses on condenser pipe, goes out in coolant jacket
Different vacuums are had under existing vacuum, different cooling water flows and steam flow.Open in the connecting tube on coolant jacket
Steam leak-off valve, air leaks into coolant jacket, and the air amount of leaking into is measured by suspended body flowmeter, until pressure gauge reading is on coolant jacket
When 0, atmospheric pressure state is in coolant jacket, air no longer leaks into.The apparatus structure is ingenious, and simple compact, required power is few, section
Can environmental protection, low cost.
Brief description of the drawings
Fig. 1 condenses the experimental provision structural representation of influence for the measurement air amount of leaking into that the present invention is provided to steam.
Wherein, 1 booster pump, 2 water inlet pipes, 3 water intaking valves, 4 evaporators, 5 heating rods, 6 steam pipes, 7 coolant jackets, 8 condenser pipes,
9 condensed water water inlet pipes, 10 condensed water outlet pipes, 11 air leakage pipes, 12 connecting tubes, 13 steam leak-off valves, 14 suspended body flowmeters, 15 backwater
Pipe, 16 back-water valve (BWV)s, 17 pressure gauges.
Embodiment
The present invention is described in further detail below in conjunction with the accompanying drawings：
Referring to Fig. 1, the measurement air amount of leaking into disclosed by the invention condenses the experimental provision of influence on steam, evaporator 4
Left side is connected with air inlet pipe 2, and air inlet pipe 2 is connected to booster pump 1, and water intaking valve 3 is provided with air inlet pipe 2.On the right side of evaporator 4
Side is provided with heating rod 5, and the import of steam pipe 6 is provided with the top of evaporator 4.The outlet of steam pipe 6 is arranged on coolant jacket 7
On, the inside of coolant jacket 7 is provided with condenser pipe 8, and the import of condenser pipe 8 is installed with condensed water water inlet pipe 9, the outlet of condenser pipe 8
Condensed water outlet pipe 10 is installed, air leakage pipe 11 is installed in the lower section of coolant jacket 7, steam leak-off valve 13, gas leakage are installed on the pipe
Valve 13 is connected with suspended body flowmeter 14 with connecting tube 12.Return pipe 15 is installed in the lower section of coolant jacket 7, is provided with the pipe
Back-water valve (BWV) 16.Pressure gauge 17 is installed on coolant jacket 7.
The experimental provision that the air amount of leaking into condenses influence on steam is measured, operationally：
Booster pump 1 and water intaking valve 3 are opened, is that evaporator 4 adds water to 2/3 liquid level.Add for the energization power of electrically heated rod 5
Heat.After a period of time, a certain amount of steam is produced in evaporator 4, these steam enter in coolant jacket 7 along steam pipe 6, now
Cooling water is flowed into condenser pipe 8 from condensed water water inlet pipe 9, then is flowed out from condensed water outlet pipe 10.In the cooling of cooling water
Under, steam is condensed in condensation pipe surface, and condensate liquid is flowed into evaporator 4 along return pipe 15, and pressure gauge is provided with coolant jacket 7
17, when condensation reaches stable state, under certain cooling water flow, occur negative pressure in coolant jacket 7, there is certain vacuum degree, this
It is caused by steam condensation.The steam leak-off valve 13 in air leakage pipe 11 is opened, outside air is leaked into condenser jacket 7, and the amount of leaking into is by floating
Subflow gauge 14 is measured.
After the acquisition amount of leaking into, the operating efficiency for the condenser jacket that experimenter can be observed under the amount of leaking into.
Claims (7)
1. a kind of measure the experimental provision that the air amount of leaking into condenses influence on steam, it is characterised in that the experimental provision includes steaming
Vapour source, coolant jacket (7), pressure gauge (17), air leakage pipe (11) and flowmeter, wherein,
It is connected between the vapour source and coolant jacket (7) by steam pipe (6), condenser pipe (8) is set in steam pipe (6)；Pressure
Power table (17) is arranged on above coolant jacket (7)；Air leakage pipe (11) is provided with below coolant jacket (7), provided with leakage in air leakage pipe (11)
Air valve (13), steam leak-off valve (13) is connected by connecting tube (12) with flowmeter.
2. the measurement air amount of leaking into condenses the experimental provision of influence on steam as claimed in claim 1, it is characterised in that described
Vapour source is evaporator (4).
3. the measurement air amount of leaking into condenses the experimental provision of influence on steam as claimed in claim 2, it is characterised in that described
Evaporator (4) connects a booster pump (1) by water inlet pipe (2), and water intaking valve (3) is provided with water inlet pipe (2).
4. the measurement air amount of leaking into condenses the experimental provision of influence on steam as claimed in claim 2, it is characterised in that described
Evaporator (4) is provided with heating rod (5).
5. the measurement air amount of leaking into condenses the experimental provision of influence on steam as claimed in claim 2, it is characterised in that described
It is additionally provided between evaporator (4) and coolant jacket (7) on return pipe (15), the return pipe (15) and back-water valve (BWV) (16) is set.
6. the measurement air amount of leaking into condenses the experimental provision of influence on steam as claimed in claim 2, it is characterised in that described
Flow is calculated as suspended body flowmeter (14).
7. the measurement air amount of leaking into condenses the experimental provision of influence on steam as claimed in claim 1, it is characterised in that condensation
Pipe (8) import and export is respectively arranged at two ends with condensed water water inlet pipe (9) and cool solidifying water outlet pipe (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710118541.8A CN106940329A (en) | 2017-03-01 | 2017-03-01 | It is a kind of to measure the experimental provision that the air amount of leaking into condenses influence on steam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710118541.8A CN106940329A (en) | 2017-03-01 | 2017-03-01 | It is a kind of to measure the experimental provision that the air amount of leaking into condenses influence on steam |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106940329A true CN106940329A (en) | 2017-07-11 |
Family
ID=59469869
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710118541.8A Pending CN106940329A (en) | 2017-03-01 | 2017-03-01 | It is a kind of to measure the experimental provision that the air amount of leaking into condenses influence on steam |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106940329A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108937603A (en) * | 2018-09-29 | 2018-12-07 | 杭州老板电器股份有限公司 | Steam amount detecting device |
| CN109470733A (en) * | 2018-10-18 | 2019-03-15 | 浙江大学 | In a kind of achievable steam pipe with the visual experimental provision of out-tubular condensing |
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|---|---|---|---|---|
| CN2784902Y (en) * | 2005-02-18 | 2006-05-31 | 中国电力工程顾问集团中南电力设计院 | Meter for on-line monitoring air leakage of steam turbine vacuum system |
| CN201476949U (en) * | 2009-09-07 | 2010-05-19 | 安徽省芜湖仪器仪表研究所 | Detecting device of air leakage rate of container |
| US7975484B1 (en) * | 2008-01-25 | 2011-07-12 | John M Burns | Apparatus and method for monitoring steam condenser air inleakage |
| CN102589824A (en) * | 2012-02-28 | 2012-07-18 | 西安交通大学 | Air leakage detection method of condenser |
| CN203259207U (en) * | 2013-05-13 | 2013-10-30 | 国家电网公司 | Condenser air feed amount measuring device |
| CN205670026U (en) * | 2016-05-06 | 2016-11-02 | 南京电力设备质量性能检验中心 | A kind of blank measuring device for gas of turbine vacuum system |
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2017
- 2017-03-01 CN CN201710118541.8A patent/CN106940329A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2784902Y (en) * | 2005-02-18 | 2006-05-31 | 中国电力工程顾问集团中南电力设计院 | Meter for on-line monitoring air leakage of steam turbine vacuum system |
| US7975484B1 (en) * | 2008-01-25 | 2011-07-12 | John M Burns | Apparatus and method for monitoring steam condenser air inleakage |
| CN201476949U (en) * | 2009-09-07 | 2010-05-19 | 安徽省芜湖仪器仪表研究所 | Detecting device of air leakage rate of container |
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| CN203259207U (en) * | 2013-05-13 | 2013-10-30 | 国家电网公司 | Condenser air feed amount measuring device |
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Non-Patent Citations (1)
| Title |
|---|
| 王妮妮等: "漏空气量对不同换热管的凝汽器压力和端差影响的试验研究", 《电站系统工程》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108937603A (en) * | 2018-09-29 | 2018-12-07 | 杭州老板电器股份有限公司 | Steam amount detecting device |
| CN109470733A (en) * | 2018-10-18 | 2019-03-15 | 浙江大学 | In a kind of achievable steam pipe with the visual experimental provision of out-tubular condensing |
| CN109470733B (en) * | 2018-10-18 | 2020-06-30 | 浙江大学 | Experimental device capable of realizing visualization of condensation inside and outside steam pipes |
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Application publication date: 20170711 |