CN103207210A - Online wet steam dryness gauge - Google Patents
Online wet steam dryness gauge Download PDFInfo
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- CN103207210A CN103207210A CN2013100866993A CN201310086699A CN103207210A CN 103207210 A CN103207210 A CN 103207210A CN 2013100866993 A CN2013100866993 A CN 2013100866993A CN 201310086699 A CN201310086699 A CN 201310086699A CN 103207210 A CN103207210 A CN 103207210A
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Abstract
An online wet steam dryness gauge comprises a sampler, a heat exchanger, a water tank, a centrifuge, a cooler, a first sampling branch, a second sampling branch, a first cooling branch, a second cooling branch and a third cooling branch. The sampler, the heat exchanger, the water tank, the centrifuge and the cooler are connected by the first sampling branch, the second sampling branch, the first cooling branch, the second cooling branch and the third cooling branch. The online wet steam dryness gauge further comprises a first enthalpy measuring device, a second enthalpy measuring device, a first flow measuring device, a second flow measuring device and a data processing module, wherein the first enthalpy measuring device is used for measuring enthalpy at a medium outlet of the heat exchanger, the second enthalpy measuring device is used for measuring enthalpy a cooling water inlet and a cooling water outlet, the first flow measuring device is mounted on the second sampling branch, the second flow measuring device is mounted on a second secondary branch, and the data processing module is connected with the first enthalpy measuring device, the second enthalpy measuring device, the first flow measuring device and the second flow measuring device. By the gauge, pressure on a sampling side and a cooling side can be measured and calculated in real time, and real-time wet steam dryness can be provided.
Description
Technical field
The invention belongs to thermal measurement instrument field, relate to a kind of dryness of wet steam on-line measurement instrument.
Background technology
Wet steam is that a kind of vapour phase is that external phase, liquid phase are disperse phase and the vapour-liquid two-phase mixture with steady flow structure, and wherein the quality of vapour phase and the ratio of wet steam gross mass are defined as the mass dryness fraction of wet steam.The mass dryness fraction of wet steam is the important parameter of Experiment of Thermophysics research and equipment operation; Such as, mass dryness fraction is bigger to the security of operation influence of the process heat reactor of the low mass dryness fraction Natural Circulation of low temperature; The terminal several grade blades of the steam turbine of nuclear power station, steam quality directly influences leaf longevity and the turbine efficiency of steam turbine; In industry such as chemical industry, food processing, pharmacy, the control of steam quality and the quality of product have important relationship; In petroleum thermal recovery, the mass dryness fraction of the High Temperature High Pressure wet steam of injecting to oil reservoir has material impact to the economy of recovering the oil.
Main chemical reagent titrimetry or the tracer method of adopting measured dryness of wet steam in the present commercial Application.The measuring accuracy of chemical reagent titrimetry depends on hydroxyl or the distributing homogeneity of chlorine root and operator's skill level in the wet steam.Tracer method also requires tracer agent to be evenly distributed in whole steam supply system, and the Measurement and analysis equipment to tracer agent requires very high simultaneously.These two kinds of methods commonly used all can only off-line measurement, can not show the changing value of dryness of wet steam in real time.Because dryness of wet steam on-line measurement difficulty is very big, also do not have so far to measure in real time, accuracy height, life-span are long, the wet steam surveying instrument of dependable performance and better economy.
Summary of the invention
Can only off-line measurement for overcoming prior art, can not show the technological deficiency of dryness of wet steam value in real time, the invention provides a kind of dryness of wet steam on-line measurement instrument.
A kind of dryness of wet steam on-line measurement instrument of the present invention comprises sampler, heat exchanger, water tank, sedimentator, refrigeratory, first sampling slip, second sampling slip, the first cooling branch road, the second cooling branch road and the 3rd cooling branch road; Sampler is connected with the heat exchanger medium entrance pipe; First sampling slip connects heat exchanger medium outlet and refrigeratory medium inlet; Second sampling slip connects the cold device media outlet of getting; The first cooling branch road connects cools down water out and water tank, and the first cooling branch road also comprises first the level branch road that connects the refrigeratory coolant outlet; The second cooling branch road connects water tank and sedimentator; The 3rd cooling branch road connects sedimentator and refrigeratory cooling water inlet, and the 3rd cooling branch road also comprises the second subprime branch road that connects the cools down water inlet; Described dryness of wet steam on-line measurement instrument also comprises the first enthalpy measurement mechanism of measuring heat exchanger medium exit enthalpy, measure the second enthalpy measurement mechanism of cools down water inlet and coolant outlet place enthalpy, be installed in the first flow measurement mechanism and second flow measurement device that is installed in described second subprime branch road of second sampling slip; And the data processing module that is connected with the first enthalpy measurement mechanism, the second enthalpy measurement mechanism, first flow measurement mechanism, the second flow measurement device signal.
Concrete, the described first enthalpy measurement mechanism comprises temperature measuring equipment and first device for pressure measurement that is installed in the heat exchanger medium exit.
Further, the described first enthalpy measurement mechanism also comprises the temperature measuring equipment that is installed in second sampling slip.
Concrete, the described second enthalpy measurement mechanism comprises temperature measuring equipment, second device for pressure measurement that is installed in the cools down water inlet and the temperature measuring equipment that is installed in the cools down water out.
Preferably, described temperature measuring equipment is to meet to spread the platinum resistance of putting.
Preferably, also be in series with reliever on described first sampling slip.
Preferably, described reliever is the multi-step pressure reduction orifice plate.
Preferably, described water tank comprises cooling device.
Preferably, also be in series with flow regulator on the described second cooling branch road and/or the second subprime branch road.
Preferably, be in series with the High Temperature High Pressure ball valve on the connecting line of described sampler and heat exchanger.
Adopt dryness of wet steam on-line measurement instrument of the present invention, by sampling, heat exchange in the wet steam introducing heat exchanger is become single-phase water, the row operation of going forward side by side of the pressure of measuring in real time sampling side and cold side, dryness of wet steam value instantaneous value can be provided, at any time show the variation of dryness of wet steam value, make things convenient for the control personnel that steam quality is followed the tracks of control.The present invention is simple in structure, and volume is less, be convenient for carrying, and the measuring accuracy height, the dryness measurement error is less than ± 5%.
Description of drawings
Fig. 1 illustrates the annexation synoptic diagram of each branch road of a kind of embodiment of the present invention and heat exchanger, each mouthful of refrigeratory;
Fig. 2 illustrates the connection block diagram of a kind of embodiment of the present invention;
Fig. 3 illustrates the process flow diagram of a kind of embodiment of data processing module of the present invention;
Each figure, reference numeral name: 1. Sampler, 2. Heat, 3. Tank, 4. Centrifuge, 5. Cooler 6. Steam pipe, 7 multistage pressure plate 8. First flow rate adjusting means, 9. second flow regulating means, 10. first flow measuring device, 11 second flow measuring device, 12. third temperature measuring device, 13. first temperature measuring means, 14. second temperature measurement unit, 15. fourth temperature measuring device, 16. second pressure measuring device, 17. first pressure measurement means, 18 High pressure valve, 31. first sampling branch, 32 second sampling branch, 33. a first cooling branch, 34 second cooling branch, 35. third cooling branch, 36. first secondary branch, 37. second secondary branch, 41. exchanger cooling water outlet, 42 Heat exchanger medium inlet, 43. exchanger cooling water inlet, 44. exchanger media outlet, 45. cooler cooling water outlet 46. cooling medium inlet 47 to take control. cooler cooling water inlet 48. Cold extractor media outlet
Embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in further detail.
The present invention relates to a kind of dryness of wet steam on-line measurement instrument, comprise sampler 1, heat exchanger 2, water tank 3, sedimentator 4, refrigeratory 5, first sampling slip 31, second sampling slip 32, the first cooling branch road 33, the second cooling branch road 34 and the 3rd cooling branch road 35; Sampler 1 is connected with heat exchanger medium entrance 42 pipelines; First sampling slip 31 connects heat exchanger medium outlet 44 and refrigeratory medium inlet 46; Second sampling slip 32 connects the cold device media outlet 48 of getting; The first cooling branch road 33 connects cools down water out 41 and water tank 3, the first cooling branch roads 33 also comprise first the level branch road 36 that connects refrigeratory coolant outlet 45; The second cooling branch road 34 connects water tank 3 and sedimentator 4; The 3rd cooling branch road 35 connects sedimentator 4 and refrigeratory cooling water inlet 47, the three cooling branch roads 35 also comprise the second subprime branch road 37 that connects cools down water inlet 43; Described dryness of wet steam on-line measurement instrument also comprises measures the first enthalpy measurement mechanism that heat exchanger medium exports 44 place's enthalpies, measure the second enthalpy measurement mechanism of cools down water inlet 43 and coolant outlet 41 place's enthalpies, be installed in the first flow measurement mechanism 11 and second flow measurement device 10 that is installed in described second subprime branch road of second sampling slip 32; And the data processing module that is connected with the first enthalpy measurement mechanism, the second enthalpy measurement mechanism, first flow measurement mechanism, the second flow measurement device signal.
During concrete enforcement, sampler is taken a sample from 6 pairs of tested vapours of jet chimney, through heat exchanger 2 wet steam is cooled to single-phase water, carries out secondary through refrigeratory again and is cooled to single-phase water at low temperature and discharges; Water in the water tank is pumped water to heat exchanger and refrigeratory by sedimentator, is back to water tank then and realizes circulation cooling use after mixing.Designed air-cooled radiator and water-filled radiator on the water tank, for the dryness measurement employing wind-cooling heat dissipating of sampling character, be convenient to field work, for real-time mass dryness fraction monitoring location, required to use the water-cooling pattern heat radiation, tap water enters from the top from the water tank below and draws.The sampler size determines that according to the size of jet chimney 6 described heat exchanger can be the shell-and-tube exchanger of using always.The flow-ratio control of chilled water and wet steam is between 3:1 to 5:1, and cools down water inlet temperature is controlled about 25 ℃, and pressure is controlled more than 1MPa, can guarantee the resolution of dryness measurement and the stability of system effectively.To the control of cools down water inlet temperature and pressure, can realize by temperature control equipment and the pressure adjustment assembly of peripheral hardware.
Preferably, also be in series with reliever on described first sampling slip 31, will be kept to normal pressure by the water by steam-reforming one-tenth of heat exchanger and enter refrigeratory again, described reliever can be multi-step pressure reduction orifice plate 7.Post-decompression water at atmospheric pressure can directly be discharged, and can not damage human body.
The design of above-mentioned employing heat exchanger, refrigeratory and multi-step pressure reduction orifice plate, the wet steam after the sampling finally is cooled to the normal temperature and pressure single-phase water, can directly discharge, and can not damage operating personnel.Cooling circuit is designed to enclosed, carries out voltage stabilizing and heat radiation by water tank, and cooling circuit provides chilled water for simultaneously heat exchanger and refrigeratory, adopts this design, can effectively guarantee the stability of cooling water flow, prevents the interference that outer bound pair is measured.
Preferably, described water tank 3 comprises cooling device, and for example air-cooled and water-cooling heat radiating device cools off the water in the water tank 3.
Preferably, also be in series with flow regulator on the described second cooling branch road 34 and/or the second subprime branch road 37.As shown in Figure 2, first flow regulating device 8 and second flow regulator 9 carry out flow regulation to residing second subprime branch road and second sampling slip respectively.Flow regulator should be arranged on the flow measurement device rear end of branch road of living in, in order to avoid flow measurement device causes measuring error to increase because flow is excessive; Described flow regulator can be variable valve, and described flow measurement device can be electromagnetic flowmeter or mass flowmeter.
Preferably, be in series with High Temperature High Pressure ball valve 18 on the connecting line of described sampler 1 and heat exchanger 2, end links to each other with heat exchanger by articulation, does not influence the operate as normal of trunk line when being convenient to the calibrating of dryness of wet steam on-line measurement instrument and maintenance.
The first enthalpy measurement mechanism is measured the steam of sampler sampling through the enthalpy of over-heat-exchanger
, the second enthalpy measurement mechanism measures the enthalpy at cools down water inlet place
Enthalpy with the coolant outlet place
, the first flow measurement mechanism measures the discharge of second sampling slip
Because first sampling slip and second sampling slip are airtight cascaded structure, second sampling slip is actual identical with the first sampling slip discharge, all be the discharge of tested steam-reforming Cheng Shuihou, so first flow measurement mechanism measured value has characterized the flow of tested water vapour, the cooling water flow that heat exchanger is flow through in the second flow measurement device measurement
, characterized and be used for the cooling water flow that carries out heat interchange with tested water vapour.By measuring above-mentioned enthalpy and flow value, data are imported described data processing module, can draw the mass dryness fraction of tested water vapour.
Concrete, the described first enthalpy measurement mechanism comprises temperature measuring equipment and first device for pressure measurement 17 that is installed in heat exchanger medium exit 44.By measuring the temperature and pressure in heat exchanger medium exit 44, the discharge that records in conjunction with the first flow measurement mechanism
, can draw the enthalpy of sampling steam behind over-heat-exchanger
Further, the described first enthalpy measurement mechanism also comprises the temperature measuring equipment that is installed in second sampling slip 32.By measuring the cooler outlet temperature, can be to above-mentioned measurement
Revise, measurement result is more accurate.
Concrete, the described second enthalpy measurement mechanism comprises temperature measuring equipment, second device for pressure measurement 16 that is installed in cools down water inlet 43 and the temperature measuring equipment that is installed in cools down water out 41.By measuring the temperature and pressure at cools down water out 41 and cools down water inlet 43 places, flow through the cooling water flow of heat exchanger in conjunction with the second flow measurement device measurement
, can draw the enthalpy at cools down water inlet place
Enthalpy with the exit
Above-mentioned each temperature measuring equipment is preferably to meet spreads the platinum resistance of putting, i.e. the measurement termination of platinum resistance sensing is opposite with water (flow) direction, and it is more accurate to measure temperature.
By the IAPWS-IF97 standard, can obtain the enthalpy of corresponding water by pressure and temperature.Water and steam character international federation (IAPWS) that German Erlangen in 1997 holds by and delivered by moral, Russia, English, the brand-new water and steam computation model that joint study group that 12 scientists of 7 states form proposes such as added, it is the IAPWS-IF97 formula, according to this formula, can obtain corresponding enthalpy by the pressure and temperature of measuring water.
After obtaining each enthalpy, according to principle of conservation of energy, have:
And steam quality and enthalpy meet following formula:
②
Wherein
Be the heat exchange efficiency of system,
Be jet chimney 6 enthalpies,
Be the saturation water enthalpy,
Be the saturated vapour enthalpy, x is steam quality, and 2. 1. convolution can get with formula:
By 3. formula as can be known, by measuring flow
,
And enthalpy
,
,
, can draw steam quality.
Above-mentioned calculation procedure can be imported described data processing module and realize by writing software program in advance.
Be better explanation the present invention, provide a kind of embodiment with the present invention shown in Fig. 2 to 3 below:
Sampler is connected with jet chimney 6 and from jet chimney to steam sampling, the steam input heat exchanger 2 after the sampling.
The first enthalpy measurement mechanism comprises first temperature measuring equipment 13, first device for pressure measurement 17 that is installed in heat exchanger medium exit 44 and second temperature measuring equipment 14 that is installed in second sampling slip 32.
The second enthalpy measurement mechanism comprises the 3rd temperature measuring equipment 12, second device for pressure measurement 16 that is installed in cools down water inlet 43 and the 4th temperature measuring equipment 15 that is installed in cools down water out 41.
Each temperature measuring equipment is to meet to spread the platinum resistance of putting, and device for pressure measurement is pressure unit, and described first flow measurement mechanism 8 and second flow measurement device 9 are electromagnetic flowmeter.
The data in real time ground input data conversion module that above-mentioned each measurement mechanism records.
Described data conversion module comprises distribution modular converter, collecting unit, processing unit and display unit.
The sampling temperature in T1 that first temperature measuring equipment 13 records, the sampling outlet temperature T 2 that second temperature measuring equipment 14 records, the cooling temperature in T3 that the 3rd temperature survey measurement mechanism 12 records, the described distribution modular converter of coolant outlet temperature T 4 inputs that the 4th temperature measuring equipment 15 records, the sampling effluent amount P0 that first device for pressure measurement 17 records, the cold side flow P1 that second device for pressure measurement 16 records, the flow W0 that first flow measurement mechanism 8 records, the flow W1 that second flow measurement device 9 records is input to collecting unit with the data of distribution modular converter output, collecting unit sends to processing unit with data, and processing unit receives system's heat exchange efficiency parameter that product calibrates simultaneously
, 1., 2. and 3. calculate the mass dryness fraction of tested steam by aforesaid formula, show the dryness of wet steam value in real time by display unit.
The collecting unit of above-mentioned data conversion module, processing unit and display unit can adopt central processing unit, memory storage and LCD to be connected realization.
Adopt dryness of wet steam on-line measurement instrument of the present invention, by sampling, heat exchange in the wet steam introducing heat exchanger is become single-phase water, the row operation of going forward side by side of the pressure of measuring in real time sampling side and cold side, dryness of wet steam value instantaneous value can be provided, at any time show the variation of dryness of wet steam value, make things convenient for the control personnel that steam quality is followed the tracks of control.The present invention is simple in structure, and volume is less, be convenient for carrying, and the measuring accuracy height, the dryness measurement error is less than ± 5%.
The software module that the method that the disclosed embodiments are described among the present invention or the step of algorithm can directly use hardware, processor to carry out, perhaps the combination of the two is implemented.Software module can place the storage medium of any other form known in random access memory (RAM), internal memory, ROM (read-only memory) (ROM), electrically programmable ROM, electrically erasable ROM, register, hard disk, moveable magnetic disc, CD-ROM or the technical field.
Previously described is each preferred embodiment of the present invention; preferred implementation in each preferred embodiment is if not obviously contradictory or be prerequisite with a certain preferred implementation; each preferred implementation stack combinations is arbitrarily used; concrete parameter among described embodiment and the embodiment only is the invention proof procedure for clear statement inventor; be not in order to limit scope of patent protection of the present invention; scope of patent protection of the present invention still is as the criterion with its claims; the equivalent structure that every utilization instructions of the present invention and accompanying drawing content are done changes, and in like manner all should be included in protection scope of the present invention.
Claims (10)
1. a dryness of wet steam on-line measurement instrument comprises sampler (1), heat exchanger (2), water tank (3), sedimentator (4), refrigeratory (5), first sampling slip (31), second sampling slip (32), the first cooling branch road (33), the second cooling branch road (34) and the 3rd cooling branch road (35); Sampler (1) is connected with heat exchanger medium entrance (42) pipeline; First sampling slip (31) connects heat exchanger medium outlet (44) and refrigeratory medium inlet (46); Second sampling slip (32) connects the cold device media outlet (48) of getting; The first cooling branch road (33) connects cools down water out (41) and water tank (3), and the first cooling branch road (33) also comprises first the level branch road (36) that connects refrigeratory coolant outlet (45); The second cooling branch road (34) connects water tank (3) and sedimentator (4); The 3rd cooling branch road (35) connects sedimentator (4) and refrigeratory cooling water inlet (47), and the 3rd cooling branch road (35) also comprises the second subprime branch road (37) that connects cools down water inlet (43); Described dryness of wet steam on-line measurement instrument also comprises measures the first enthalpy measurement mechanism that enthalpy is located in heat exchanger medium outlet (44), measure cools down water inlet (43) and coolant outlet (41) and locate the second enthalpy measurement mechanism of enthalpy, be installed in the first flow measurement mechanism (11) of second sampling slip (32) and be installed in second flow measurement device (10) of described second subprime branch road; And the data processing module that is connected with the first enthalpy measurement mechanism, the second enthalpy measurement mechanism, first flow measurement mechanism, the second flow measurement device signal.
2. dryness of wet steam on-line measurement instrument according to claim 1, it is characterized in that: the described first enthalpy measurement mechanism comprises temperature measuring equipment and first device for pressure measurement (17) that is installed in heat exchanger medium exit (44).
3. as dryness of wet steam on-line measurement instrument as described in the claim 2, it is characterized in that: the described first enthalpy measurement mechanism also comprises the temperature measuring equipment that is installed in second sampling slip (32).
4. dryness of wet steam on-line measurement instrument according to claim 1, it is characterized in that: the described second enthalpy measurement mechanism comprises temperature measuring equipment, second device for pressure measurement (16) that is installed in cools down water inlet (43) and the temperature measuring equipment that is installed in cools down water out (41).
5. as dryness of wet steam on-line measurement instrument as described in any one of the claim 2 to 4, it is characterized in that: described temperature measuring equipment is to meet to spread the platinum resistance of putting.
6. dryness of wet steam on-line measurement instrument according to claim 1 is characterized in that: also be in series with reliever on described first sampling slip (31).
7. as dryness of wet steam on-line measurement instrument as described in the claim 6, it is characterized in that: described reliever is multi-step pressure reduction orifice plate (7).
8. dryness of wet steam on-line measurement instrument according to claim 1, it is characterized in that: described water tank (3) comprises cooling device.
9. dryness of wet steam on-line measurement instrument according to claim 1 is characterized in that: also be in series with flow regulator on the described second cooling branch road (34) and/or the second subprime branch road (37).
10. dryness of wet steam on-line measurement instrument according to claim 1 is characterized in that: be in series with High Temperature High Pressure ball valve (18) on the connecting line of described sampler (1) and heat exchanger (2).
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104330436A (en) * | 2014-11-24 | 2015-02-04 | 中国核动力研究设计院 | Experimental device for two-phase heat transfer characteristic research and method for measuring wet steam dryness |
| CN106932436A (en) * | 2015-12-31 | 2017-07-07 | 核动力运行研究所 | A kind of online steam wetness measurement system and measuring method |
| CN107389747A (en) * | 2017-07-04 | 2017-11-24 | 东北石油大学 | Gas-liquid two-phase dryness measurement system |
| CN107843298A (en) * | 2017-10-20 | 2018-03-27 | 重庆交通大学 | The measuring system and method for two-phase flow and mass dryness fraction |
| CN109459533A (en) * | 2018-11-22 | 2019-03-12 | 南京林业大学 | A kind of steam wetness measurement devices and methods therefor |
| CN110108595A (en) * | 2019-04-15 | 2019-08-09 | 中国辐射防护研究院 | A kind of gas-vapour mixing method humidity detection device |
| CN110245463A (en) * | 2019-07-10 | 2019-09-17 | 济南市市政工程设计研究院（集团）有限责任公司 | A kind of combustion gas flue gas enthalpy calculation method and system |
| CN113597215A (en) * | 2021-07-29 | 2021-11-02 | 苏州浪潮智能科技有限公司 | System, method and device for adjusting flow of parallel branch of two-phase cold plate liquid cooling system |
| CN114235896A (en) * | 2021-12-23 | 2022-03-25 | 中国核动力研究设计院 | Saturated steam dryness measuring device |
| CN115219547A (en) * | 2021-04-14 | 2022-10-21 | 中国石油天然气股份有限公司 | Wellhead steam dryness monitoring device and wellhead steam dryness monitoring method |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104330436A (en) * | 2014-11-24 | 2015-02-04 | 中国核动力研究设计院 | Experimental device for two-phase heat transfer characteristic research and method for measuring wet steam dryness |
| CN106932436A (en) * | 2015-12-31 | 2017-07-07 | 核动力运行研究所 | A kind of online steam wetness measurement system and measuring method |
| CN106932436B (en) * | 2015-12-31 | 2023-11-21 | 核动力运行研究所 | Online steam humidity measurement system and measurement method |
| CN107389747A (en) * | 2017-07-04 | 2017-11-24 | 东北石油大学 | Gas-liquid two-phase dryness measurement system |
| CN107843298A (en) * | 2017-10-20 | 2018-03-27 | 重庆交通大学 | The measuring system and method for two-phase flow and mass dryness fraction |
| CN107843298B (en) * | 2017-10-20 | 2019-11-15 | 重庆交通大学 | The measuring system and method for two-phase flow and mass dryness fraction |
| CN109459533B (en) * | 2018-11-22 | 2023-10-27 | 南京林业大学 | Steam humidity measuring device and method thereof |
| CN109459533A (en) * | 2018-11-22 | 2019-03-12 | 南京林业大学 | A kind of steam wetness measurement devices and methods therefor |
| CN110108595A (en) * | 2019-04-15 | 2019-08-09 | 中国辐射防护研究院 | A kind of gas-vapour mixing method humidity detection device |
| CN110108595B (en) * | 2019-04-15 | 2021-09-24 | 中国辐射防护研究院 | Humidity monitoring device adopting gas-steam mixing method |
| CN110245463A (en) * | 2019-07-10 | 2019-09-17 | 济南市市政工程设计研究院（集团）有限责任公司 | A kind of combustion gas flue gas enthalpy calculation method and system |
| CN115219547A (en) * | 2021-04-14 | 2022-10-21 | 中国石油天然气股份有限公司 | Wellhead steam dryness monitoring device and wellhead steam dryness monitoring method |
| CN113597215A (en) * | 2021-07-29 | 2021-11-02 | 苏州浪潮智能科技有限公司 | System, method and device for adjusting flow of parallel branch of two-phase cold plate liquid cooling system |
| CN114235896A (en) * | 2021-12-23 | 2022-03-25 | 中国核动力研究设计院 | Saturated steam dryness measuring device |
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| CN103207210B (en) | 2015-04-22 |
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