CN208170357U - A kind of online energy efficiency monitoring of coal-burned industrial boiler and diagnostic device - Google Patents
A kind of online energy efficiency monitoring of coal-burned industrial boiler and diagnostic device Download PDFInfo
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- CN208170357U CN208170357U CN201820742888.XU CN201820742888U CN208170357U CN 208170357 U CN208170357 U CN 208170357U CN 201820742888 U CN201820742888 U CN 201820742888U CN 208170357 U CN208170357 U CN 208170357U
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Abstract
The utility model proposes a kind of online energy efficiency monitoring of coal-burned industrial boiler and diagnostic devices, belong to coal-burned industrial boiler efficiency data acquisition technology field.Described device includes boiler operatiopn efficiency data acquisition device, diagnosis of energy saving device and user terminal；The acquisition data signal output of the boiler operatiopn efficiency data acquisition device is connected with the data information input terminal of the diagnosis of energy saving device；The data interaction end of the diagnosis of energy saving device is connected by wireless network with the data interaction end of the user terminal.Described device has the features such as using manpower and material resources sparingly, improving boiler energy-saving monitoring efficiency.
Description
Technical field
The utility model relates to a kind of online energy efficiency monitoring of coal-burned industrial boiler and diagnostic devices, belong to coal-burned industrial boiler
Efficiency data acquisition technology field.
Background technique
The Industrial Boiler thermal powerplant important as China belongs to one of highly energy-consuming special equipment.Currently, due to setting
The reason of various aspects such as meter, manufacture, operation, maintenance, the generally existing high fume temperature of industrial boilers in China, excess air coefficient
Greatly, the factors for the influence thermals efficiency such as fuel quality is unstable, incomplete combustion and use unit management are extensive, many industry
Boiler is chronically at the operation of inefficient range, in average 70%~75%, the Methods of Oil-Gas Fired Boiler thermal effect with the coal-burning boiler thermal efficiency
Rate is generally lower than design efficiency, average operating efficiency lower than international most advanced level 8%~15%, energy wave 80%~85%
Take quite serious.In recent years, with the worsening of resource environment, country is increasing to the supervision of energy-saving and emission-reduction, but
Due to Industrial Boiler there are separate unit power output it is small, quantity is more, it is more dispersed, mainly with medium-sized and small enterprises use for it is main the characteristics of, to prison
It superintends and directs and brings larger difficulty.At present to the Energy Conservation Supervision of enterprise mainly based on Energy Conservation Supervision inspection, efficiency test, it is more difficult to accurate anti-
Reflect the long-term energy saving situation of boiler.
Industrial Boiler efficiency test is diagnosis boiler energy consumption most efficient method.It, which can find out, causes boiler energy to lose
Principal element, with targetedly technological guidance enterprise improve boiler efficiency.Traditional efficiency test need of work tester
To scene, correlation data calculation boiler efficiency is acquired by testing meter and instrument, this mode expends a large amount of manpower and material resources, and
And can only reaction test when boiler efficiency, cannot fully automated monitoring boiler Real time Efficiency, boiler items heat waste cannot be provided
The specific value of mistake cannot targetedly analyze the factor of heat loss, it is difficult to which efficiency changes in the accurate evaluation boiler operatiopn period
It is limited to adjust guidance to industrial boiler operation for situation.Therefore, it is suitable for coal-burned industrial boiler there is an urgent need to a kind of relative ease
Efficiency online monitoring system.
Utility model content
The utility model causes manpower and material resources largely to consume to solve the existing artificial field monitoring of boiler energy-saving monitoring needs
It the problem of taking proposes a kind of online energy efficiency monitoring of coal-burned industrial boiler and diagnostic device, the technical solution taken is as follows：
A kind of online energy efficiency monitoring of coal-burned industrial boiler and diagnostic device, described device include that boiler operatiopn efficiency data are adopted
Acquisition means, diagnosis of energy saving device and user terminal；The acquisition data signal output of the boiler operatiopn efficiency data acquisition device
It is connected with the data information input terminal of the diagnosis of energy saving device；The data interaction end of the diagnosis of energy saving device passes through wireless network
Network is connected with the data interaction end of the user terminal.
Further, the boiler operatiopn efficiency data acquisition device includes data sampling sensor group, data collector
And recorder.
Further, the data sampling sensor group includes feed meter, feed temperature measuring device, vapor (steam) temperature
Measuring device, steam pressure measuring device, flue gas flow meter, flue-gas temperature meter and flue gas zirconia oxygen analyzer；The water flow
Meter, feed temperature measuring device, vapor (steam) temperature measuring device, steam pressure measuring device, flue gas flow meter, flue-gas temperature meter and
The data detection signal output end of flue gas zirconia oxygen analyzer is the acquisition number of the boiler operatiopn efficiency data acquisition device
According to signal output end.
Further, the feed meter is mounted on the total feedwater piping of boiler, and specific installation site is horizontal straight section
Feed pipe middle position, wherein at least 3 meters of the horizontal straight section feed pipe.
Further, the feed temperature measuring device is mounted on the total feedwater piping of boiler.
Further, the vapor (steam) temperature measuring device is mounted on the steam (vapor) outlet main steam line of the boiler.
Further, the steam pressure measuring device is mounted on the steam (vapor) outlet main steam line of the boiler.
Further, the flue gas flow meter is mounted on after the afterbody heating surface of the boiler on back-end ductwork, and
And at least 2 meters or more of the back-end ductwork straight section, the flue gas flow meter is mounted on the middle position of the back-end ductwork straight section.
Further, after the flue-gas temperature meter and flue gas zirconia oxygen analyzer are installed in boiler afterbody heating surface
On back-end ductwork；The distance of the flue-gas temperature meter and flue gas zirconia oxygen analyzer is 0.4 meter away from afterbody heating surface, farthest
Mounting distance is no more than one meter；The position of the flue-gas temperature meter and flue gas zirconia oxygen analyzer insertion back-end ductwork is the tail
The center of portion's flue, and insertion depth is to the road body center of the back-end ductwork.
Further, the acquisition data signal output of the boiler operatiopn efficiency data acquisition device is broadly divided into electric current
Signal acquisition module and digital quantity input/output module, and believed by on-scene communication bus and the data of the diagnosis of energy saving device
Input terminal is ceased to be connected.
Further, the diagnosis of energy saving device uses PLC control system device；The PLC control system device includes
Input unit is measured on tetra- road analog input device of PLC and bis- tunnel PLC.
The utility model beneficial effect：
The online energy efficiency monitoring of coal-burned industrial boiler described in the utility model and diagnostic device only pass through online thermal parameter i.e.
It realizes real-time energy efficiency monitoring, avoids the characteristics of coal-burning boiler tradition energy efficiency test method needs to monitor coal-fired calorific value and dosage,
Really realize on line real-time monitoring burning boiler energy valid value.Personnel can be avoided completely to boiler field monitoring, effectively reduced
The waste of human and material resources, and effectively increase the efficiency of energy-saving monitoring.Coal-burned industrial boiler described in the utility model is online
Energy efficiency monitoring and diagnostic device improve boiler economic operation management level comprehensively, provide effective skill for boiler energy-saving supervision and management
Art support.
Detailed description of the invention
Fig. 1 is the boiler measuring point signal of the online energy efficiency monitoring of coal-burned industrial boiler described in the utility model and diagnostic device
Figure.
Fig. 2 is the network connection topology of the online energy efficiency monitoring of coal-burned industrial boiler described in the utility model and diagnostic device
Figure.
Specific embodiment
The utility model is described further combined with specific embodiments below, but the utility model is not by the limit of embodiment
System.
In the description of the present invention, it should be noted that term " center ", " longitudinal direction ", " transverse direction ", "upper", "lower",
The orientation or positional relationship of the instructions such as "front", "rear", "left", "right", "top", "bottom", "inner", "outside" and " endways " is based on attached
Orientation or positional relationship shown in figure, is merely for convenience of describing the present invention and simplifying the description, rather than indication or suggestion
Signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as to this
The limitation of utility model.
In the description of the present invention, it should be noted that unless otherwise expressly provided and limit, term " installation ",
" connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally connect
It connects；It can be and be directly connected to, can also be indirectly connected with by intermediary, can be the connection of two components interiors.For
For those skilled in the art, the concrete meaning of above-mentioned term in the present invention can be understood with concrete condition.
In addition, in the description of the present invention, unless otherwise indicated, " multiple ", " multiple groups ", " more " are meant that two
It is a or more than two.
Material therefor, instrument and method in following implementation are this field conventional material, instrument without specified otherwise
Device and method can be obtained by commercial channel.
Embodiment 1：
A kind of online energy efficiency monitoring of coal-burned industrial boiler and diagnostic device, as depicted in figs. 1 and 2, described device includes pot
Furnace operational energy efficiency data acquisition device, diagnosis of energy saving device and user terminal；The boiler operatiopn efficiency data acquisition device is adopted
Collection data signal output is connected with the data information input terminal of the diagnosis of energy saving device；The data of the diagnosis of energy saving device
Interaction end is connected by wireless network with the data interaction end of the user terminal.
The boiler operatiopn efficiency data acquisition device includes data sampling sensor group, data collector and recorder.
The data sampling sensor group includes feed meter 1, feed temperature measuring device 2, vapor (steam) temperature measurement dress
Set 4, steam pressure measuring device 3, flue gas flow meter 5, flue-gas temperature meter 7 and flue gas zirconia oxygen analyzer 6；The water flow
Meter, feed temperature measuring device, vapor (steam) temperature measuring device, steam pressure measuring device, flue gas flow meter, flue-gas temperature meter and
The data detection signal output end of flue gas zirconia oxygen analyzer is the acquisition number of the boiler operatiopn efficiency data acquisition device
According to signal output end.Wherein, the feed meter uses Siemens Company's transmitter 7ME6910-1AA10-1AA0 and sensing
Device 7ME6580-2YF14-2AA1 is mounted on the total feedwater piping of boiler, and specific installation site is horizontal straight section feed pipe interposition
It sets, wherein at least 3 meters of the horizontal straight section feed pipe.The feed temperature measuring device is produced using Rosemount INC. (US) 12001 West 78th Street Prairie, Minnesota 55344 U.S.A.
248HA integrated temperature sensing transducer is mounted on the total feedwater piping of boiler.The vapor (steam) temperature measuring device uses Ross
The 248HA integrated temperature sensing transducer that Meng Te company produces is mounted on the steam (vapor) outlet main steam line of the boiler.Institute
State the steaming that steam pressure measuring device is mounted on the boiler using the coplanar pressure transmitter of 3051G that Rosemount INC. (US) 12001 West 78th Street Prairie, Minnesota 55344 U.S.A. produces
On vapor outlet main steam line.The flue gas flow meter uses the gas-turbine flow of De Wen measuring equipment (Shanghai) Co., Ltd.
Meter IGTM PTZ BoX V2 is mounted on after the afterbody heating surface of the boiler on back-end ductwork, and the back-end ductwork
At least 2 meters or more of straight section, the flue gas flow meter is mounted on the middle position of the back-end ductwork straight section.The flue-gas temperature meter
It (is designed using Ou Senjie Science and Technology Ltd. of Shenzhen and is examined with the OS6-02-H smoke components produced with flue gas zirconia oxygen analyzer
Survey device) it is installed in after boiler afterbody heating surface on back-end ductwork；The flue-gas temperature meter and flue gas zirconium oxide oxygen amount
The distance of meter is away from 0.4 meter of afterbody heating surface, and farthest mounting distance is no more than one meter；The flue-gas temperature meter and flue gas oxygen
Zirconia oxygen analyzer be inserted into back-end ductwork position be the back-end ductwork center, and insertion depth is to the tail portion cigarette
The road body center in road.
The acquisition data signal output of the boiler operatiopn efficiency data acquisition device mainly uses ADAM-4017 conduct
Current signal collection module and ADAM-4055 as digital quantity input/output module, and by RS_485 on-scene communication bus with
The data information input terminal of the diagnosis of energy saving device is connected.
The diagnosis of energy saving device uses PLC control system device；The PLC control system device includes tetra- road mould of PLC
Input unit is measured on analog quantity input unit and bis- tunnel PLC.As shown in Fig. 2, the feed meter, flue gas flow meter, flue-gas temperature
Meter and flue gas zirconia oxygen analyzer are connect with 1 piece of tetra- road Analog input mModule (TM5SAI4L) of PLC, and measurement data is input to
PLC control system.
The feed temperature measuring device and steam pressure measuring device and 1 piece of bis- tunnel PLC amount input module
(TM5SAO2L) it connects, and measurement data is input to PLC control system.
The PLC control system reads the online Pyrological data of boiler operatiopn, and (boiler feedwater flow, feed temperature, saturation are steamed
Steam pressure, oxygen content of smoke gas, flue-gas temperature, flue gas flow), by host computer, man-machine interface (HMI) steams the given saturation of PLC
The parameters such as vapour ratio Nem, water supply specific enthalpy are handled, and realize host computer real-time display boiler energy valid value, various heat losses situation, together
When result fed back into user terminal.The user terminal is connect by internet and control cabinet with PLC control system, at acquisition
Obtained data and information are managed, boiler operatiopn energy consumption is grasped.
Heat loss calculation method (the i.e. PLC diagnosis that the online energy efficiency monitoring of the coal-burned industrial boiler and diagnostic device are related to
Method) it is that the prior art has method, the utility model is only to the hard of the online energy efficiency monitoring of coal-burned industrial boiler and diagnostic device
Part device is designed, and is not improved, the prior art to heat loss calculation method (i.e. PLC diagnostic method) involved in it
Described in heat loss calculation method principle it is as follows：
According to《Boiler room practical design handbook》, using bituminous coal theoretical air requirement has following empirical equation：
It is greater than 15% bituminous coal, theoretical air requirement V for fugitive constituent0(m3/ kg) with the low heat valve Q of coalydw(kj/kg)
There are following relationships：
For soft coal, relationship is as follows：
It can be seen that from formula (1), (2), V0With QydwBetween be linear functional relation, in order to application it is more convenient, carrying out
After a large amount of calculation and checks, above-mentioned two formula is summarized as：
V0=2.63 × 10-4×Qydw (3)
In practical application, formula (3) is fine to the adaptability of A II, III class coal (calorific value 18000-22000kj/kg) of A,
Error < 1%.
Amount of theoretical flue gas G (m at smoke evacuation3/ h) and theoretical air requirement V0With relational expression be：
G=B (alpha+beta) V0 (4)
B is fuel mass, kg/h in formula；α is excess air coefficient at smoke evacuation；β is greenhouse gas.
The thermal efficiency of boiler can be expressed as：
Q in formulaGLIndicate effective absorption heat hourly, kj/h when boiler operatiopn.
Formula (3), (4) are substituted into formula (5) and are arranged：
Coal-burning boiler smoke evacuation excess air coefficient α mostly account for the 5% of α in 2 or so, β, by (alpha+beta) item in above formula turn to alpha+beta=
N alpha form (wherein n=1.05) simultaneously substitutes into formula (6) and is further simplified：
Amount of theoretical flue gas G and actual measurement exhaust gas volumn GCThere are following relationships：
G in formulaCTo survey exhaust gas volumn, m3/h；θpyFor exhaust gas temperature, DEG C.
Formula (8) are substituted into formula (7) arrangement and finally show that boiler operating efficiency simple computation formula is：
α, θ in formula (9)py、GCIt can directly be measured by Thermal Meter, QGLIt can be pressed according to boiler rate-of flow, work
The data such as power, out temperature are calculated by computer.
Separately it was found from the expression of the back balance of boiler：
η=100- (q2+q3+q4+q5+q6) (10)
Q in formula2、q3、q4、q5、q6It is incomplete to be expressed as the imperfect combustion heat loss of heat loss due to exhaust gas, gas, solid
Combustion heat loss, radiation loss, heat loss due to sensible heat in slag.For coal-burned industrial boiler, q6A fixed value, q can also be used3、
q5It can use《Industrial Boiler efficiency test and evaluation rule》The method of TSG G003-2010 works as boiler using a fixed value
When power output is lower than the 75% of nominal output, it can also be corrected by calculating.q2By being calculated as follows：
q4It can be with previously given value q4', calculate q2It is calculate by the following formula again afterwards：
q4=100- (η+q2+q3+q5+q6) (12)
Compare | q4-q4' |≤0.1, i.e. approval resulting value, if gone beyond the scope, by the q after calculating4Q is invested again4', until
It meets the requirements, can thus find out all heat loss.
Heat loss calculation method described above be existing method, those skilled in the art according to《Boiler room practical design hand
Volume》With《Industrial Boiler efficiency test and evaluation rule》It can be obtained.
Although the utility model has been disclosed in the preferred embodiment as above, it is not intended to limit the utility model, and is appointed
What person skilled in the art can do various changes and modification, therefore without departing from the spirit and scope of the utility model
The protection scope of the utility model should subject to the definition of the claims.
Claims (10)
1. a kind of online energy efficiency monitoring of coal-burned industrial boiler and diagnostic device, which is characterized in that described device includes boiler operatiopn
Efficiency data acquisition device, diagnosis of energy saving device and user terminal；The acquisition data of the boiler operatiopn efficiency data acquisition device
Signal output end is connected with the data information input terminal of the diagnosis of energy saving device；The data interaction end of the diagnosis of energy saving device
It is connected by wireless network with the data interaction end of the user terminal.
2. device according to claim 1, which is characterized in that the boiler operatiopn efficiency data acquisition device includes that data are adopted
Collect sensor group, data collector and recorder.
3. device according to claim 2, which is characterized in that the data sampling sensor group include feed meter, to
Coolant-temperature gage measuring device, vapor (steam) temperature measuring device, steam pressure measuring device, flue gas flow meter, flue-gas temperature meter and flue gas
Zirconia oxygen analyzer；The water ga(u)ge, feed temperature measuring device, vapor (steam) temperature measuring device, steam pressure measuring device,
The data detection signal output end of flue gas flow meter, flue-gas temperature meter and flue gas zirconia oxygen analyzer is the boiler operatiopn energy
Imitate the acquisition data signal output of data acquisition device.
4. device according to claim 3, which is characterized in that the feed meter is mounted on the total feedwater piping of boiler,
Specific installation site is horizontal straight section feed pipe middle position, wherein at least 3 meters of the horizontal straight section feed pipe.
5. device according to claim 3, which is characterized in that the feed temperature measuring device is mounted on the total feed pipe of boiler
On road.
6. device according to claim 3, which is characterized in that the vapor (steam) temperature measuring device is mounted on the steaming of the boiler
On vapor outlet main steam line.
7. device according to claim 3, which is characterized in that the steam pressure measuring device is mounted on the steaming of the boiler
On vapor outlet main steam line.
8. device according to claim 3, which is characterized in that the flue gas flow meter is mounted on the afterbody of the boiler
After heating surface on back-end ductwork, and at least 2 meters or more of the back-end ductwork straight section, the flue gas flow meter is mounted on the tail
The middle position of portion's flue straight section.
9. device according to claim 3, which is characterized in that the flue-gas temperature meter and flue gas zirconia oxygen analyzer are respectively mounted
After boiler afterbody heating surface on back-end ductwork；The mounting distance of the flue-gas temperature meter and flue gas zirconia oxygen analyzer is
Away from 0.4 meter of afterbody heating surface；The farthest mounting distance is no more than one meter；The flue-gas temperature meter and flue gas zirconium oxide oxygen
Meter be inserted into back-end ductwork position be the back-end ductwork center, and insertion depth is to the road of the back-end ductwork
Body center.
10. device according to claim 1, which is characterized in that the diagnosis of energy saving device uses PLC control system device；
The PLC control system device includes tetra- road analog input device of PLC and bis- tunnel PLC amount input unit.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113218681A (en) * | 2020-12-30 | 2021-08-06 | 新奥数能科技有限公司 | Solid fuel industrial boiler monitoring system and boiler thermal efficiency monitoring method |
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2018
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113218681A (en) * | 2020-12-30 | 2021-08-06 | 新奥数能科技有限公司 | Solid fuel industrial boiler monitoring system and boiler thermal efficiency monitoring method |
| CN113218681B (en) * | 2020-12-30 | 2023-05-12 | 新奥数能科技有限公司 | Solid fuel industrial boiler monitoring system and boiler thermal efficiency monitoring method |
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