CN105003901B - The boiler thermodynamic system automatically controlled is carried out based on steam consumption fuel quantity - Google Patents
The boiler thermodynamic system automatically controlled is carried out based on steam consumption fuel quantity Download PDFInfo
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- CN105003901B CN105003901B CN201510326031.0A CN201510326031A CN105003901B CN 105003901 B CN105003901 B CN 105003901B CN 201510326031 A CN201510326031 A CN 201510326031A CN 105003901 B CN105003901 B CN 105003901B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P80/00—Climate change mitigation technologies for sector-wide applications
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Abstract
The invention provides a kind of boiler thermodynamic system, including CSRC diagnostic system, fuel delivery means and multiple boilers in parallel, each boiler described respectively with CSRC diagnostic system data cube computation, described CSRC diagnostic system and every boiler, fuel delivery means carries out data cube computation, to obtain the fuel input of every boiler in time, CSRC diagnostic system is according to the quality of steam of every boiler output obtained and fuel input, monitor the ton steam consumption fuel quantity parameter of every boiler in real time, described boiler ton steam consumption fuel quantity is that the steam total amount produced boiler a period of time is divided by this section of time fuel input quantity of boiler, obtain a ton index for steam consumption fuel quantity.The present invention can make therrmodynamic system remain Effec-tive Function, it is to avoid energy waste.
Description
Technical field
The invention belongs to field of boilers, belong to F22 field.
Background technology
In steam boiler running, the fuel producing one ton of steam consumption is weigh boiler whether Effec-tive Function one
Important indicator, but it is not monitored being used to this index, therefore consumed by monitoring Boiler Steam in real time
The quantity of fuel, is analyzed processing to it, it is judged that boiler operatiopn state, and guides Automatic Control of Boiler strategy, for improving
Boiler operating efficiency, saves the energy significant.
Summary of the invention
The present invention by monitoring in real time the ton steam consumption fuel quantity parameter of every boiler, the running status of real-time diagnosis boiler,
Boiler is made to remain Effec-tive Function, it is to avoid the energy waste caused under boiler efficiency.
To achieve these goals, technical scheme is as follows:
A kind of boiler thermodynamic system, including multiple boilers of CSRC diagnostic system, fuel delivery means and parallel connection, institute
State each boiler respectively with CSRC diagnostic system data cube computation, described CSRC diagnostic system and every boiler,
Fuel delivery means carries out data cube computation, in order to obtain the fuel input of every boiler, CSRC diagnostic system root in time
According to quality of steam and the fuel input of every the boiler output obtained, the ton steam consumption fuel quantity ginseng of every boiler of monitoring in real time
Number, described boiler ton steam consumption fuel quantity is that the steam total amount produced boiler a period of time is defeated divided by this section of time fuel of boiler
Enter amount, obtain a ton index for steam consumption fuel quantity.Preferably, CSRC diagnostic system is by analyzing the ton steam consumption to every boiler of mark
Fuel quantity index, analyzes and judges the boiler that the thermal efficiency is higher, increase its operating load；And for the relatively low pot of the thermal efficiency
Stove, reduces its operating load；If boiler thermal output is less than lower limit, then send alarm.
Preferably, described system includes steam turbine, electromotor, vapor-water heat exchanger, and the steam that boiler produces is carried by steam turbine
Dynamic electromotor generates electricity, and meanwhile, the low-temperature receiver that the exhaust steam after generating enters in vapor-water heat exchanger, with vapor-water heat exchanger changes
Heat, the condensed water of exhaust steam loops back boiler by circulating pump.
Preferably, described vapor-water heat exchanger is plate type heat exchanger.
As preferably, the flow of the heat exchanging fluid participating in heat exchange in described plate type heat exchanger is different, described plate type heat exchanger
Including heat exchange plate, arrange at least one by-passing parts in the heat exchange plate that flow is little, described by-passing parts will flow through and change
The flow path of the heat exchanging fluid of hot plate sheet is divided at least two flow manifold, and by-passing parts arranges opening so that described changes
A point Cheng Liudao in hot plate sheet is cascaded structure, so that the little heat exchanging fluid of flow forms S-shaped runner on heat exchange plate.
As preferably, heat exchange plate arranges ripple, and the height of ripple is different；On same plate, along the flowing road of fluid
Footpath, the wave height in same split channel gradually rises.
As preferably, the Opening length L1 of by-passing parts, a length of L2 of by-passing parts, flow manifold width W, then meet
Following relational expression:
L1/L=a-b*Ln (L1/W)-c* (L1/W)；
Wherein L=L1+L2；
400 ＜ L ＜ 800mm, 80 ＜ L1 ＜ 140mm, 130 ＜ W ＜ 150mm；Ln is logarithmic function
0.17 ＜ L1/L ＜ 0.22,0.5 ＜ L1/W ＜ 1.1
0.18 ＜ a ＜ 0.21,0.014 ＜ b ＜ 0.016,0.0035 ＜ c ＜ 0.004.
As preferably, along the direction of fluid flowing, the width W of flow manifolds different on same plate constantly subtracts
Few.
Compared with prior art, plate type heat exchanger and the therrmodynamic system thereof of the present invention has the advantage that
1) by ton steam consumption fuel quantity and/or the parameter of ton steam consumption electricity of monitoring parallel boiler in real time, to side by side
The boiler run realizes analyzing mark, and the boiler making efficiency the highest all the time is in peak load state, and inefficient boiler is timely
Pinpoint the problems and solve as early as possible, making the boiler of operation keep efficiently all the time..
2) by rate of water make-up and the generation quantity of steam of every boiler of monitoring in real time, obtain rate of water make-up and produce the dynamic of quantity of steam
State relation, it is judged that boiler blow-out system is the most working properly, prevents the substantial amounts of heat energy caused due to boiler blow-out system fault
Waste.
3) combustion system DCS and electricity generation system DCS of all for enterprise boilers are incorporated into a Centralized Monitoring automatization prison
Control platform, this platform can realize the tubularpH sensor of important parameter various to all boilers, and carry out it online
Diagnostic analysis, solves the island of automation problem that existing boiler operatiopn exists, and realizes boiler energy-saving optimization operation.
4) present invention only changes with same plate and seals structure to realize hot and cold side liquid actual internal area unequal
Demand, and the plate type heat exchanger that these plates assemble uses the unilateral assembling form taken over, and can save the biggest peace
Dress and maintenance cost.
5) present invention passes through test of many times, obtains an optimum heat exchange plate optimum results, and is carried out by test
Checking, thus demonstrate the accuracy of result.
6) the on-line analysis diagnostic system of boiler operatiopn and steam turbine power generation is developed, it is achieved boiler energy-saving runs,
Save the energy.
Accompanying drawing explanation
Fig. 1 is boiler thermodynamic system schematic diagram of the present invention；
Fig. 2 is that boiler combustion system of the present invention controls schematic diagram；
Fig. 3 is electricity generation system Automated condtrol schematic diagram；
Fig. 4 is plate type heat exchanger seal groove schematic diagram of the present invention；
Fig. 5 is gasket seal cross sectional representation of the present invention；
Fig. 6 is the plate type heat exchanger schematic diagram that a runner is in parallel；
Fig. 7 is the schematic diagram of the plate type heat exchanger of runner series connection；
Fig. 8 is the schematic diagram of plate type heat exchanger point journey sheet structure of the present invention；
Fig. 9 is the structural representation of plate type heat exchanger point journey pad of the present invention；
Figure 10 is the sheet structure schematic diagram of the fluid that the plate type heat exchanger flow of the present invention is big；
Figure 11 is the structural representation of plate type heat exchanger point journey plate of the present invention；
Figure 12 is the scale diagrams of the plate type heat exchanger point journey plate of Fig. 8；
Figure 13 is the schematic diagram that drainage of the present invention automatically controls.
Reference is as follows:
1 first fluid import, 2 first fluid outlets, 3 second fluid imports, 4 second fluid outlets, 5 end plates, 6 end plates, 7
Flow manifold, 8 flow seal grooves, 9 flow seal pads, 10 heat exchange plates, 11 flow manifolds, 12 flow manifolds, 13 gasket seals,
14 boilers, 15 steam turbines, 16 electromotors, 17 small pumps, 18 water circulating pumps, 19 vapor-water heat exchangers, 20 CSRC diagnostic systems,
21CO/CO2Content sets and Acquisition Instrument, 22CO/CO2Content measuring instrument, 23 Fan Regulation valves, 24 blower fans, 25 fuel flow rates control
Adjusting means, 26 Fuel lances, 27 exit flues, 28 sealed grooves, 29 is protruding, and 30 is protruding, 31 openings；32 drums, 33 waste heats
Heat exchanger, 34 effusion meters, 35 piezometers, 36 thermometeies, 37 Water Test Kits, 38 adjustment mechanism for valve, 39 blowoff valves, 40 valves
Door, 41 adjustment mechanism for valve, 42 effusion meters
Detailed description of the invention
Below in conjunction with the accompanying drawings the detailed description of the invention of the present invention is described in detail.
Herein, without specified otherwise, relating to formula, "/" represents that division, "×", " * " represent multiplication.
A kind of boiler thermodynamic system, described boiler thermodynamic system includes multiple stage boiler 14, is used for producing steam, described multiple stage
Boiler 14 carries out data cube computation with CSRC diagnostic system 20 respectively, in order to the operation to boiler is monitored.
By the operation monitoring automated system of all boilers being incorporated into an automatically-monitored platform of Centralized Monitoring, i.e.
CSRC diagnostic system 20, this platform can realize the automatic online monitoring of the various parameters to all boilers, solve
The island of automation problem that existing boiler operatiopn exists.
Further, as it is shown in figure 1, described boiler thermodynamic system includes boiler 14, steam turbine 15, electromotor 16, soda pop
Heat exchanger 19, the steam that boiler 14 produces, by steam turbine 15, is then generated electricity, meanwhile, after generating by electromotor 16
The low-temperature receiver that comes that exhaust steam enters in vapor-water heat exchanger 19, with vapor-water heat exchanger 19 carries out heat exchange, and the condensed water of exhaust steam is by circulation
Pump 18 loops back boiler 14.
As preferably, described boiler 14 has multiple, and accordingly, most circulating pumps 18 also has multiple.
As preferably, described vapor-water heat exchanger 19 has multiple, and described vapor-water heat exchanger 19 is multiple in series or in parallel
Structure.
Described CSRC diagnostic system 20 carries out data cube computation with boiler 14 and steam turbine 15, in order to boiler and steamer
The operation of machine is monitored.
Fig. 1 simply illustrates a boiler 14 and is connected with CSRC diagnostic system 20, it practice, all of boiler 14 is all
It is connected with CSRC diagnostic system 20, because simplifying reason, so being the most all shown without.
The operation monitoring automated system of all boilers and generating automated system are incorporated into a Centralized Monitoring automatic
Changing monitor supervision platform, i.e. CSRC diagnostic system 20, this platform can realize the various parameters to all boilers and steam turbine
Automatic online monitoring, solve existing boiler generator operation exist island of automation problem.
Certainly, described boiler thermodynamic system also includes water charging system, is shown without in accompanying drawing 1.
As preferably, as in figure 2 it is shown, described boiler 14 automatic system for monitoring includes boiler combustion monitoring automation system
System, mainly includes CO/CO2Content sets and Acquisition Instrument 21, CO/CO2Content measuring instrument 22, Fan Regulation valve 23, blower fan 24, combustion
Stream amount control and regulation device 25, Fuel lance 26.Described Fuel lance 26 one end connects boiler, adds combustion toward boiler furnace
Material, the other end connects fuel flow rate control and regulation device 25, described control and regulation device 25 and CSRC diagnostic system 20 number
According to connection.Described blower fan 24 one end is connected with boiler, is responsible for burner hearth blowing-in and combustion-supporting, and one end is connected with Fan Regulation valve 23, institute
Stating Fan Regulation valve regulation and enter the air quantity of blower fan, described Fan Regulation valve 23 and CSRC diagnostic system 20 carry out data even
Connect.Described CO/CO2Content measuring instrument 22 is arranged in the exit flue 27 of boiler 14, for measuring CO and CO in flue gas2's
Content, described CO/CO2Content sets and Acquisition Instrument 21 one end connects CO/CO2Content measuring instrument 22, the other end is examined with CSRC
Disconnected system 20 carries out data cube computation.Described CO/CO2Content sets and Acquisition Instrument 21 is used for gathering CO/CO2Content data and setting
Data.
The monitoring process of boiler combustion automatic system for monitoring is as follows:
During boiler combustion, in the unit interval, burning release CO volume content is V1, burning release in unit interval during burning
CO2Volume content is V2.At CO/CO2V1 when content sets and in Acquisition Instrument 21, setting boiler is properly functioningSetAnd V2Set.?
In actual boiler running process, CSRC diagnostic system can be according to CO/CO2The data that content sets and Acquisition Instrument 21 gathers are certainly
The dynamic fuel quantity to ventilation and conveying is controlled.
Certainly, as preferably, it is also possible to set V1 at CSRC diagnostic system 20SetAnd V2Set。
For the regulation of CO content, if the content V1 of the CO measuredMeasure＞ V1Set, then show that ventilation is inadequate, therefore in
Centre monitoring and diagnosis system can pass to Fan Regulation valve by increasing the instruction ventilated, and is come by the aperture increasing Fan Regulation valve 23
Increase air output, if the V1 of the CO measuredMeasure＜ V1Set, and the CO measured2Content V2Measure＜ V2Set, then ventilation is shown
Too much, therefore CSRC diagnostic system can pass to Fan Regulation valve 23 by reducing the instruction ventilated, and adjusts by reducing blower fan
The aperture of joint valve 23 reduces air output.
Certainly, alternatively, if the content V1 of CO measuredMeasure＞ V1Set, then show that fuel quantity is too much, because of
The instruction reducing fuel quantity can be passed to fuel flow rate control and regulation device 25 by this CSRC diagnostic system, by fuel stream
Amount control and regulation device 25 reduces fuel quantity, if the V1 of the CO measuredMeasure＜ V1Set, and the CO measured2Content V2Measure＜
V2Set, then show that fuel quantity is very few, therefore the instruction increasing fuel quantity can be passed to fuel flow rate by CSRC diagnostic system
Control and regulation device 25, by fuel flow rate control and regulation device 25 reduce fuel flow rate.
Certainly, the regulation to CO content, as preferably, above two regulative mode can be used simultaneously, in order to accelerate
Governing speed.
For CO2The regulation of content, if the CO measured2Content V2Measure＜ V2Set, show undercharge, therefore in
The instruction increasing fuel quantity can be passed to fuel flow rate control and regulation device 25 by centre monitoring and diagnosis system 20, passes through fuel flow rate
Control to adjust device 25 reduces fuel flow rate.
For CO2The regulation of content, is preferentially to carry out in the case of the content of CO meets setting value.
As preferably, if the CO measured2Content V2Measure＜ V2Set, then show that ventilation is too much, therefore CSRC is examined
Disconnected system can pass to Fan Regulation valve 23 by reducing the instruction ventilated, and is reduced by the aperture reducing Fan Regulation valve 23 and send
Air quantity.
Certainly, to CO2The regulation of content, as preferably, can use above two regulative mode simultaneously, in order to accelerate
Governing speed.
As preferably, V1SetAnd V2SetIt it is a continuous print numerical range.I.e. V1Measure、V2MeasureAs long as at numerical range
In, even if meeting requirement.
As preferably, can be to CO, CO2In each independently carry out Automated condtrol, the most only control CO or only
Control CO2, or both control.
As preferably, arrange in CSRC diagnostic system 20 upper limit of CO and/or the alert data of lower limit and/or
CO2Lower limit alert data.Once having exceeded the data of the upper limit or lower limit, CSRC diagnostic system 20 is issued by alarm signal
Number.This kind of situation shows to have lost efficacy for the control of air output and fuel delivery, and possible boiler operatiopn goes wrong, and needs
To overhaul at once.
As preferably, CO/CO in described flue gas2Content detection instrument is to use moral figure testo350Pro analytical tool, resistance to
The temperature limit is up to 500 DEG C, thus meets pyrometric requirement.
As preferably, each boiler produces quantity of steam, steam pressure and vapor (steam) temperature, pressure fan airflow pressure, air-introduced machine
Airflow pressure, power of motor, boiler replenishing water amount, the information data transmission such as fire box temperature is to CSRC diagnostic system 20, it is achieved
The real time on-line monitoring of all operation boiler emphasis parameters
As preferably, described generating automated system include regulating according to generation load before the machine of described steam turbine pressure and
Output.
As preferably, described generating automated system includes that the generation load collected regulates air output and the fuel of boiler
Amount, regulates the pushing quantity of boiler simultaneously.
Described generating automated system is as it is shown on figure 3, CSRC diagnostic system gathers the output load of electromotor 16.Make
For preferably, output load shows in real time.If needing to increase output load, then CSRC diagnostic system sends instruction,
Control to adjust device 25 by Fan Regulation valve 23 and fuel flow rate and increase air output and fuel quantity simultaneously, pass through small pump simultaneously
The conveying power of 17 increases rate of water make-up.Certainly, as preferably, it is also possible to increased by pump 18 power increase and enter boiler
Quantity of circulating water.Certainly as preferably, power can be increased by small pump 17 and water circulating pump 18 simultaneously accelerate regulating time.
If needing to reduce output load, then CSRC diagnostic system 20 sends instruction, by Fan Regulation valve 23 He
Fuel flow rate control and regulation device 25 reduces air output and fuel quantity simultaneously, is reduced by the conveying power of small pump 17 simultaneously
Rate of water make-up.The quantity of circulating water entering boiler is reduced it is of course also possible to reduced by pump 18 power.Certainly as preferably, permissible
Reduce power by small pump 17 and water circulating pump 18 simultaneously and accelerate regulating time.
As preferably, if needing to increase output load, then CSRC diagnostic system sends instruction, increases described steamer
Pressure and output before the machine of machine.If needing to reduce output load, then CSRC diagnostic system sends instruction, reduces institute
State pressure and output before the machine of steam turbine.
By above-mentioned Based Intelligent Control, it is possible to achieve the intelligent power generation of boiler so that boiler combustion and generator operation are automatic
Change, improve the efficiency of monitoring.
Certainly, Fig. 3 is a schematic diagram, illustrate only small pump 17, and miscellaneous part is shown at Fig. 1, in 2,
Omitted at this, those skilled in the art according to Fig. 1-3 combine description record it will be appreciated that.
As preferably, as shown in figure 13, described every boiler also includes automatically controlling drainage, described in the row of automatically controlling
Quantity of steam and the water yield of input boiler that dirty system produces according to boiler automatically control.If quantity of steam and input boiler
Ratio between the water yield is less than lower numerical limit, then CSRC diagnostic system 20 automatically controls minimizing blowdown flow rate.If quantity of steam
And the ratio between the water yield of input boiler is more than limit value, then CSRC diagnostic system 20 automatically controls increase blowdown
Amount.Concrete control system is as follows:
As shown in figure 13, described boiler includes effusion meter 34, piezometer 35 and the temperature being arranged on steam (vapor) outlet pipeline
Meter 36, for measuring the output flow velocity of steam, pressure and temperature.Described effusion meter 34, piezometer 35 and thermometer 36 respectively with
CSRC diagnostic system 20 carries out data cube computation, in order to the data of measurement are passed to CSRC diagnostic system 20, in
According to the vapor (steam) temperature measured, pressure, the quality of steam of flow relocity calculation unit interval in the monitoring system of centre.
Described boiler includes the blow-off pipe being arranged on boiler-steam dome 32 lower end, and blow-off pipe arranges blowoff valve 39, blowoff valve
39 one end connecting valve adjusting meanss 38, adjustment mechanism for valve 38 and CSRC diagnostic system 20 carry out data cube computation, in order to
Valve opening data are passed to CSRC diagnostic system 20, accepts instruction from central authorities' monitoring and diagnosis system 20, regulation simultaneously
The aperture of blowoff valve 39.
Farther include effusion meter 41 on described blow-off pipe, measure the flow of blowdown.Described effusion meter 41 and CSRC
Diagnostic system 20 carries out data cube computation, in order to pass data to CSRC diagnostic system 20.CSRC diagnostic system 20
The blowdown flow rate of unit interval is calculated according to effusion meter.
On the water inlet manifold of described boiler, effusion meter is set, for detecting the flow entered in boiler, described effusion meter with
CSRC diagnostic system 20 carries out data cube computation, in order to the data of measurement pass to CSRC diagnostic system 20, central authorities
Monitoring and diagnosis system 20 enters the flow of the water of boiler according to the flow rate calculation unit interval measured.
Certainly, the water entering boiler is the water yield summation of circulating water pipe and filling pipe.As preferably, can be in moisturizing
Pipe and circulating water pipe on be respectively provided with and the effusion meter of CSRC diagnostic system 20 data cube computation, by calculate both flow it
With, thus the water yield that unit of account time entrance boiler is total.The present invention can use various control strategy to carry out control of sewage disposal amount.
One preferred control strategy is: the quality of steam of CSRC diagnostic system 20 calculating and the matter of the water inputting boiler
The ratio of amount less than lower limit, then shows that blowdown rate is too high, and therefore CSRC diagnostic system 20 is by adjustment mechanism for valve 38
Automatically the aperture of blowoff valve 39 is turned down.By aforesaid operations, blowdown can be avoided excessive, cause the waste of the energy.If steam
Quality is more than higher limit with the ratio of the quality of the water of input boiler, then show that blowdown rate is too low, may affect the longevity of boiler
Life, then CSRC diagnostic system 20 automatically improves the aperture of blowoff valve 39 by adjustment mechanism for valve 38.
As preferably, if in the case of the aperture maximum of blowoff valve 39, the quality of the water of quality of steam and input boiler
Ratio still less than lower limit, then system can give a warning, and whether prompting drainage breaks down.
As preferably, if in the case of the closedown of blowoff valve 39, the ratio of quality of quality of steam and the water of input boiler
Value is still more than higher limit, then system can give a warning, and whether prompting drainage breaks down.
One preferred control strategy is the quality that CSRC diagnostic system 20 passes through the water of the blowdown that effusion meter 41 detects
When exceeding the upper limit with the ratio of the quality of the water of input boiler, then show that blowdown flow rate is excessive, therefore CSRC diagnostic system 20
Automatically turned down the aperture of blowoff valve 39 by adjustment mechanism for valve 38.If the quality of the water of the blowdown of detection and input boiler
When the ratio of the quality of water exceedes lower limit, then showing that blowdown flow rate is too small, therefore CSRC diagnostic system 20 passes through valve regulated
Device 38 tunes up the aperture of blowoff valve 39 automatically.By so arranging, it is to avoid the water quality in drum is the poorest, in order to avoid causing boiler vapour
The corrosion of bag.
One preference policy, described drum 32 also includes Water Test Kits 37, to measure the water quality in drum.Described water quality
Analyser 37 and CSRC diagnostic system 20 carry out data cube computation, in order to accept the data measured, according to the data pair measured
Blowoff valve 39 carries out aperture control.If the tables of data open fire matter measured is the poorest, the most a certain index exceeds the data upper limit, then need
Carrying out timely blowdown, therefore CSRC diagnostic system 20 tunes up opening of blowoff valve 39 automatically by adjustment mechanism for valve 38
Degree.If the tables of data open fire matter measured is good, then CSRC diagnostic system 20 is by adjustment mechanism for valve 38 row of turning down automatically
The aperture of dirty valve 39.Blowoff valve even can be closed in the case of necessity.
One preference policy, arranges Water Test Kits (not shown) on blow-off line, to measure the water in blow-off pipe
Matter.Described Water Test Kits and CSRC diagnostic system 20 carry out data cube computation, in order to accept the data measured, according to measurement
Data blowoff valve is carried out aperture control.If the tables of data open fire matter measured is the poorest, the most a certain index is beyond in data
Limit, then need to carry out increasing blowdown flow rate, and therefore CSRC diagnostic system 20 tunes up blowdown automatically by adjustment mechanism for valve 38
The aperture of valve 39.If the tables of data open fire matter measured is good, then CSRC diagnostic system 20 is by adjustment mechanism for valve 38 certainly
The dynamic aperture turning blowoff valve 39 down.Blowoff valve even can be closed in the case of necessity.
As preferably, described blow-off line connects waste heat utilization heat exchanger 33, described waste heat utilization heat exchanger 33, in order to
Make full use of the heat of sewage.The low-temperature receiver inlet tube of heat exchanger 33 arranges valve 40, described valve 40 and adjustment mechanism for valve 41
Connecting, adjustment mechanism for valve 41 and CSRC diagnostic system 20 carry out data cube computation, in order to the aperture data of valve 40 passed
Pass CSRC diagnostic system 20 and accept the instruction of CSRC diagnostic system 20 simultaneously.If CSRC diagnostic system
20 blowdown flow rates measured increase, then CSRC diagnostic system 20 increases the aperture of valve 0 by adjustment mechanism for valve 41, to increase
Add the low-temperature receiver amount entering heat exchanger 33, keep the temperature constant of the low-temperature receiver of heat exchanger 33 output, avoid low-temperature receiver overheated simultaneously.If
The blowdown flow rate that CSRC diagnostic system 20 is measured reduces, then CSRC diagnostic system 20 is reduced by adjustment mechanism for valve 41
The aperture of valve 0, to reduce the low-temperature receiver amount entering heat exchanger 33, keeps the temperature constant of the low-temperature receiver of heat exchanger 33 output, simultaneously
Avoid low-temperature receiver heats the poorest.As preferably, described heat exchanger 33 can arrange multiple.
As preference policy, CSRC diagnostic system 20 can be by calculating quality of steam with blowdown quality sum with defeated
Enter the ratio of quality of the water of boiler to calculate the water loss of boiler.If the water loss calculated exceedes the upper limit, CSRC is examined
Disconnected system 20 then sends alarm.
As preference policy, arranging water-level gauge (not shown) in drum 32, described water-level gauge with CSRC diagnosis is
System 20 carries out data cube computation, in order to measurement data passes to CSRC diagnostic system 20.CSRC diagnostic system 20
According to the height of water level change of the data unit of account time measured, thus the quality calculating the water unit interval in drum 32 becomes
Change.CSRC diagnostic system 20 regulates blowoff valve according to the change of quantity of steam, the water yield of boiler input and the drum water yield
The aperture of 39.If CSRC diagnostic system 20 calculate quality of steam plus boiler-steam dome 32 water mass change sum with
The ratio of the quality of the water of input boiler less than lower limit, then shows that blowdown rate is too high, therefore CSRC less than certain numerical value
Diagnostic system 20 turns the aperture of blowoff valve 39 down automatically by adjustment mechanism for valve 38.By aforesaid operations, blowdown can be avoided
Excessive, cause the waste of the energy.Detect by increasing steam water-level, further increase data accurate of measurement.
As preference policy, CSRC diagnostic system 20 can be by calculating quality of steam, the variable quality of drum water
With the water loss that the ratio of blowdown quality three's sum with the quality of the water of input boiler calculates boiler.If the water calculated damages
Quenching the upper limit, CSRC diagnostic system 20 then sends alarm.
As preferably, arranging temperature and the device of drum pressure measuring water in drum, described device is examined with CSRC
Disconnected system 20 data cube computation, CSRC diagnostic system 20 calculates the quality of water in drum according to the temperature and pressure measured and becomes
Change.The quality of water is calculated so that result is more accurate by temperature and pressure.
As preferably, arranging measurement vapor (steam) temperature and the device of pressure in drum, described device with CSRC diagnosis is
Uniting 20 data cube computation, CSRC diagnostic system 20, according to the temperature and pressure measured and drum middle water level height, calculates vapour
The quality of steam in bag.So, in calculating above, according to the mass change of steam in drum, the quality of output steam and
In drum, the size of the ratio of the quality of the water of the conjunction of the mass change three of water and input boiler carrys out the aperture of control of sewage disposal valve.
So make result of calculation more accurate.
Equally, be also required to the when of calculating the loss of water by the mass change of steam in drum, the quality of output steam and
In drum, mass change and the blowdown flow rate sum of water contrast with the boiler input water yield.
As preferably, can arrange thermometer on blow-off pipe, CSRC diagnostic system 20 is according to the water temperature of blowdown, water
Composition and the quality of water of the blowdown of flow relocity calculation unit interval.
As preferably, CSRC diagnostic system 20 prestores the temperature, pressure of steam and the pass coefficient of density
According to, in order to calculate quality of steam.Temperature and the density relationship data of water can also be prestored, calculate the matter of water in drum
Amount.Relation for temperature, composition and the density of sewage also prestores in lower CSRC diagnostic system 20.
As preferably, the CSRC diagnostic system 20 quality of steam according to the output obtained and the fuel quantity of input,
Monitor the ton steam consumption fuel quantity parameter of boiler, the running status of real-time diagnosis boiler in real time, make boiler remain Effec-tive Function,
Avoid the energy waste caused under boiler efficiency.
Boiler ton steam consumption fuel quantity SF is defined as steam gross mass S of boiler a period of time generationGross massDivided by boiler this
Fuel gross mass F of input in the section timeGross mass, obtain a ton index for steam consumption fuel quantity.I.e. SF=SGross mass/FGross mass。
If boiler ton steam consumption fuel quantity is excessive, then shows that boiler efficiency is low, need to carry out examination and maintenance.
Boiler ton steam consumption fuel quantity can dynamically update, and always accumulates for the previous period, can be such as minute, second, little
Time etc., the data of preferably 5 minutes show in CSRC diagnostic system 20 as result of calculation, it is possible to draw out trend
Curve.
By monitoring the ton steam consumption fuel quantity parameter of boiler in real time, it can be deduced that the parameter of boiler during SF maximum, such as
Include, but are not limited to subsidiary engine power consumption, fuel input quality, steam input quality, air-introduced machine frequency, pressure fan frequency, circulation
At least one in the parameters such as pump frequency.Thus so that boiler runs under the above parameters in running so that SF
Reach maximum, thus reach fuel-saving purpose.
As preferably, above-mentioned parameter is all the mean parameter in a period of time.
As preferably, fuel is coal.
As preferably, CSRC diagnostic system 20 also carries out data cube computation with power information, in order to obtain boiler in time
The power consumption of the subsidiary engine of system.CSRC diagnostic system 20 is according to the quality of steam of the output obtained and power consumption, in real time
Monitor the ton steam consumption electrical parameter of every boiler, the running status of real-time diagnosis boiler, make boiler remain Effec-tive Function, keep away
Exempt from the energy waste caused under boiler efficiency.
Described subsidiary engine preferably includes as follows: the subsidiary engine equipment such as boiler blower, air-introduced machine, fire grate, boiler replenishing water pump.
Boiler ton steam consumption electricity SE is defined as steam gross mass S of boiler a period of time generationGross massDivided by this section of boiler
Summation E of all subsidiary engine power consumption in timePower consumption, obtain a ton index for steam consumption electricity.I.e. SE=SGross mass/EPower consumption。
If boiler ton steam consumption electricity is excessive, then shows that boiler efficiency is low, need to carry out examination and maintenance.
Boiler ton steam consumption electricity can dynamically update, and always accumulates for the previous period, such as, can be minute, second, hour
Deng, the data of preferably 5 minutes show as result of calculation, it is possible to draw out trend curve.
As preferably, by monitoring the ton steam consumption electrical parameter of boiler in real time, it can be deduced that the ginseng of boiler during SE maximum
Number, such as, include, but are not limited to subsidiary engine power consumption, fuel input quality, steam input quality, air-introduced machine frequency, pressure fan frequency
At least one in the parameters such as rate, circulating pump frequency.Thus so that boiler runs under the above parameters in running,
Make SE reach maximum, thus reach to save the purpose of electricity.
As preferably, above-mentioned parameter is all the mean parameter in a period of time.
As preferably, by ton steam consumption fuel quantity and/or the parameter of ton steam consumption electricity of monitoring parallel boiler in real time,
Realize the boiler of paired running mark is analyzed, make boiler higher for SE and/or SF be in peak load state all the time, SE and/
Or the low boiler of SF pinpoints the problems in time and solve as early as possible, the boiler of operation is made to keep efficiently all the time.
As preferably, by analyzing the ton vapour coal consumption to every boiler of mark and/or ton steam consumption electricity index, analyze and judge
Go out the higher boiler of SE and/or SF, increase its operating load；And for boiler relatively low for SE and/or SF, reduce it and run
Load, if boiler SE and/or SF is less than properly functioning empirical data, then needs shutdown maintenance as early as possible, after improving its thermal efficiency
Put into operation the most as early as possible.
As preferably, it is of course also possible to Manual analysis judges the boiler that SE and/or SF is higher, increase its operating load；
And for boiler relatively low for SE and/or SF, reduce its operating load, if boiler SE and/or SF less than lower limit, then needs
Will shutdown maintenance as early as possible, put into operation the most as early as possible after improving itself SE and/or SF.
As preferably, by one the most entirety of the boiler of multiple stage paired running is considered ton steam consumption fuel quantity SFALLGreatly
Little.Boiler gross ton steam consumption fuel quantity SFALLIt is defined as steam gross mass S of generation of all boiler a period of timesGross mass allDivided by institute
Fuel gross mass F inputted in having this period of boilerGross mass all, obtain the index of gross ton steam consumption fuel quantity.I.e. SFALL=
SGross mass all/FGross mass all。
Boiler gross ton steam consumption fuel quantity parameter can dynamically update, and always accumulates for the previous period, the number of preferably 5 minutes
Show according to as result of calculation, it is possible to draw out trend curve.
As preferably, by monitoring the SF of boiler in real timeALLParameter, it can be deduced that SFALLThe ginseng of every boiler during maximum
Number, such as, include, but are not limited to the subsidiary engine power consumption of every boiler, fuel input quality, steam input quality, air-introduced machine frequency
At least one in the parameters such as rate, pressure fan frequency, circulating pump frequency.Thus so that the boiler of parallel connection in running
Run under the above parameters so that SFALLReach maximum, thus reach the purpose of saving fund.
As preferably, above-mentioned parameter is all the mean parameter in a period of time.
As preferably, by one the most entirety of the boiler of multiple stage paired running is considered ton steam consumption electricity SEALLSize.
Boiler gross ton steam consumption electricity SEALLIt is defined as steam gross mass S of generation of all boiler a period of timesGross mass allDivided by all pots
All subsidiary engine power consumption E of input in this period of stoveGross mass all, obtain the index of gross ton steam consumption fuel quantity.I.e. SEALL=
SGross mass all/ETotal electricity all。
Boiler SEALLParameter can dynamically update, and always accumulates for the previous period, and the data of preferably 5 minutes are as calculating
Result shows, it is possible to draw out trend curve.
As preferably, by monitoring the SE of boiler in real timeALLParameter, it can be deduced that SEALLThe ginseng of every boiler during maximum
Number, such as, include, but are not limited to the subsidiary engine power consumption of every boiler, fuel input quality, steam input quality, air-introduced machine frequency
At least one in the parameters such as rate, pressure fan frequency, circulating pump frequency.Thus so that the boiler of parallel connection in running
Run under the above parameters so that SEALLReach maximum, thus reach the purpose of saving fund.
As preferably, above-mentioned parameter is all the mean parameter in a period of time.
As preferably, ton steam consumption fuel quantity can be considered together with ton steam consumption electricity.During by a certain for boiler section
Between run the fuel of spent subsidiary engine power consumption and input and be converted to price respectively, and the price of both is added, obtains
Total price, then by the steam total amount of this period of time generation divided by above-mentioned total price, obtains ton vapour and is worth an index of SEF.
I.e. SEF=SGross mass/(FGross mass* FUnit price+EPower consumption* EUnit price), wherein FUnit price、EUnit priceIt is the price of per unit fuel, per unit electricity respectively
Price.As preferably, the unit of fuel can be volume or mass unit, and the unit of electricity can be kilowatt hour.
CSRC diagnostic system 20 monitors the ton vapour value parameter of every boiler, the operation shape of real-time diagnosis boiler in real time
State, makes boiler remain Effec-tive Function, it is to avoid the energy waste caused under boiler efficiency.
If boiler ton vapour is worth too small, then shows that boiler efficiency is low, need to carry out examination and maintenance.Preferably, it is less than
Lower limit, CSRC diagnostic system 20 sends warning.Remind the need of examination and maintenance.
Boiler ton vapour value parameter can dynamically update, and always accumulates for the previous period, the data conduct of preferably 5 minutes
Result of calculation shows, it is possible to draw out trend curve.
As preferably, by monitoring the ton vapour value parameter of boiler in real time, it can be deduced that the ginseng of boiler during SEF maximum
Number, such as, include, but are not limited to subsidiary engine power consumption, fuel input quality, steam input quality, air-introduced machine frequency, pressure fan frequency
At least one in the parameters such as rate, circulating pump frequency.Thus so that boiler runs under the above parameters in running,
Make SEF reach maximum, thus reach the purpose of saving fund.
As preferably, above-mentioned parameter is all the mean parameter in a period of time.
As preferably, by monitoring the steam consumption value parameter of parallel boiler in real time, the boiler of paired running is realized
Analyzing mark, make boiler the highest for SEF be in peak load state all the time, boiler low for SEF is pinpointed the problems in time and solves as early as possible
Certainly, the boiler making operation all the time keeps efficiently.
As preferably, by analyzing the steam consumption value parameter index to every boiler of mark, analyze and judge the higher pot of SEF
Stove, increases its operating load；And for boiler relatively low for SEF, reduce its operating load, if boiler SEF is less than normal
Operating experience data, then need shutdown maintenance as early as possible, puts into operation the most as early as possible after improving its thermal efficiency.
As preferably, it is of course also possible to Manual analysis judges the boiler that SEF is higher, increase its operating load；And for
The boiler that SEF is relatively low, reduces its operating load, if boiler SEF is less than lower limit, then needs shutdown maintenance as early as possible, carries
Put into operation the most as early as possible after its thermal efficiency high.
As preferably, by one the most entirety of the boiler of multiple stage paired running is considered that gross ton vapour is worth SEFALLSize.
Subsidiary engine power consumption total amount and the total amount of fuel of input spent by will running all boiler a period of times are converted to price respectively,
And the price of both is added, obtain total price, then all for this period of time boilers are produced steam gross mass SGross mass ALL
Divided by above-mentioned total price, obtain ton vapour and be worth SEFALLIndex.I.e. SEFALL=SGross mass ALL/(FGross mass all* FUnit price+
EPower consumption all* EUnit price), FGross mass all、EPower consumption allRepresent that total fuel quantity that all boilers input and subsidiary engine expend total electricity respectively.
Boiler gross ton vapour value parameter can dynamically update, and always accumulates for the previous period, and the data of preferably 5 minutes are made
Show for result of calculation, it is possible to draw out trend curve.
As preferably, by monitoring the gross ton vapour value parameter of boiler in real time, it can be deduced that SEFALLEvery pot during maximum
The parameter of stove, such as, include, but are not limited to the subsidiary engine power consumption of every boiler, fuel input quality, steam input quality, draw
At least one in the parameters such as blower fan frequency, pressure fan frequency, circulating pump frequency.Thus so that in parallel in running
Boiler run under the above parameters so that SEFALLReach maximum, thus reach the purpose of saving fund.
As preferably, above-mentioned parameter is all the mean parameter in a period of time.
As preferably, described vapor-water heat exchanger and waste heat utilization heat exchanger are plate type heat exchanger.Plate type heat exchanger uses
Following structure:
Described plate type heat exchanger includes heat exchange plate 10, gasket seal 13, and gasket seal 13 is positioned at adjacent heat exchange plate
Between 10, described gasket seal 13 is arranged in the sealed groove 28 of heat exchange plate 10 periphery, and described sealed groove 28 is trapezoidal
Structure, the both sides up and down of described trapezium structure are parallel limit, and top is minor face, be long limit below, putting down of described trapezium structure
The minor face position on two limits of row arranges opening 31, and described gasket seal 13 is the trapezium structure worked in coordination with sealed groove,
Described gasket seal 13 is put in sealed groove 28 at opening 31.
By arranging the sealed groove of trapezium structure and corresponding gasket seal, so that sealed groove and close
Gasket being entrenched togather tightly, it is to avoid use binding agent, add the fastness of sealing.
As preferably, described trapezium structure is isosceles trapezoidal structure.
As preferably, described sealed groove 28 arranges protruding 29 in the inside on two limits, left and right, and correspondence therewith, at sealing gasket
The outside of two limits, left and right of the trapezium structure of sheet 13 is arranged and protruding 29 corresponding recesses.Pass through said structure so that seal
It is more firm that groove and gasket seal are fitted together to, and sealing effectiveness is more preferable.
As preferably, described sealed groove 28 arranges protruding 30 in the inside on the limit of bottom, and correspondence therewith, at gasket seal
The outside of the limit of the bottom of the trapezium structure of 13 is arranged and protruding 30 corresponding recesses.Pass through said structure so that sealed groove
Chimeric with gasket seal is more firm, and sealing effectiveness is more preferable.
As preferably, protruding 29 is triangle, and protruding 30 is rectangle.
As preferably, described protruding 29 be often respectively provided with multiple, individual as preferably 3-5.
As preferably, the lower edge of triangular hill 29 is parallel with the limit of trapezoidal bottom.By so arranging, can make
Gasket seal 13 must be installed be more prone to, easy for installation.
As preferably, the angle on limit, two, trapezoidal left and right and long limit (i.e. the limit of bottom) is 40-70 °, preferably 50-
60°.A length of 1:(2-4 between trapezoidal height and minor face), preferably 1:3.Such angle and length, a side are set
Face to consider the fastness being fitted together to, and on the one hand to consider the convenience installed.Angle is the least, the highest, then install the most difficult,
But chimeric fastness is good, good sealing effect.Otherwise, angle is the biggest, the lowest, then it is the easiest to install, but chimeric firm
Property is poor, and sealing effectiveness is poor.Above-mentioned angle and height are to consider to install that convenience and chimeric fastness carry out considers
The optimum effect arrived.
Generally, the cross-sectional area of plate-type heat exchanger slab both sides cold and hot fluid passage is equal (Fig. 6 a).?
In such cases, if the flow of two kinds of fluids (referring to volume flow) is more or less the same, now the runner of same fluid can be adopted
Taking the mode of parallel connection parallel to each other, such as Fig. 6 a, now the coefficient of heat transfer of plate type heat exchanger two side liquid is more or less the same, whole heat exchange
The device coefficient of heat transfer is the highest, and so arranges it is also possible that the import and export of two kinds of fluids are all on an end plate 5, such as Fig. 6 b institute
Showing, the beneficially maintenance of disassembling of plate type heat exchanger is cleaned with plate.If but two kinds of flows differ bigger fluid and change
During heat, if two kinds of fluids all take fluid passage in parallel, then the flow velocity that there will be relatively low discharge is the lowest, thus causes lower
The coefficient of heat transfer.Therefore the usual form that low-flow fluid passage is arranged to series connection, as shown in Figure 7a, thus cannot be by cold
Four import and export of hot fluid are provided entirely on an end plate, can only be arranged on two end plates 5,6, as shown in Figure 7b,
All arranging fluid inlet and outlet connectors on two end plates, when heat exchanger is in connection status with pipeline, dismounting is stranded by plate type heat exchanger
Difficulty, needs two ends to dismantle, and causes maintenance inconvenience.
Following structure taked by the plate type heat exchanger of the present invention, in order to adapt to vapour-liquid heat exchange.
As preferably, arranging at least one by-passing parts in the heat exchange plate 10 that described flow is little, described by-passing parts will
The flow path of the heat exchanging fluid flowing through heat exchange plate is divided at least two and divides Cheng Liudao 7, dividing in described heat exchange plate 10
Cheng Liudao 7 is cascaded structure.Cascaded structure by above-mentioned point Cheng Liudao 7 so that fluid is therefore through all of point of journey stream
Road 7, as shown in Figure 6, so that heat exchanging fluid forms S-shaped runner on heat exchange plate 10.
By arranging by-passing parts so that the fluid that flow is little can be full of whole heat exchange plate, thus avoids appearance
The heat exchange area of some fluid short, thus add the coefficient of heat transfer, improve the coefficient of heat transfer of whole heat exchanger；Additionally, it is logical
Cross and by-passing parts is set so that the fluid of low discharge also is able to realize the parallel connection of the fluid passage in multiple plates, such as Fig. 6 a
Shown in, it is to avoid in order to improve the coefficient of heat transfer, little fluid passage is set to the structure of the series connection shown in Fig. 7 a, such that it is able to
Four the import and export 1-4 making fluid are all disposed within same end plate, so that easy to maintenance.
As preferably, the volume flow of large flow fluid is more than 2 times of the volume flow of low discharge fluid.
For vapor-water heat exchanger, as preferably, the plate of side, water source arranges by-passing parts.
As preferably, by-passing parts is realized by seal groove 8 and sealing gasket 9, and described seal groove 8 is arranged on heat exchanger plates
On sheet, by being inserted in seal groove 8 by sealing gasket 9, thus form by-passing parts.
As preferably, by-passing parts is to realize by directly arranging sealing strip on heat exchange plate.As preferably, seal
Bar and heat exchange plate integration manufacture.
On the fluid inlet of heat exchange plate and the two ends up and down of outlet, i.e. the two ends up and down of Fig. 3, by-passing parts is at one end
Being to close, arrange opening at the other end, wherein along left and right directions, aperture position is to be disposed alternately at upper and lower two ends,
So ensure that fluid passage forms S-shaped.
What before note that and direction up and down mentioned later was not limited in use state is upper bottom left
Right direction, is only used to state the structure of the plate in Fig. 8 herein.
Fig. 8, plate described in 11 because being provided with two by-passing parts, therefore the import and export of fluid be arranged on upper end and under
End.Can certainly arrange 1 or odd number by-passing parts, the import and export position of fluid now is located on same one end,
It is positioned at upper end or lower end the most simultaneously.
Foregoing S-shaped runner can be half S-shaped, the most only arranges the situation of a by-passing parts, it is also possible to be
Whole S-shaped, such as Fig. 8, the form of 11, it is also possible to be the combination of multiple S-shaped and/or half S-shaped, such as arrange more than 2
The situation of individual by-passing parts, such as 3 by-passing parts are exactly the combination of 1 one S-shaped and half S-shaped, and 4 by-passing parts are exactly 2
Individual S-shaped, etc. by that analogy.
For using the form of sealing gasket, as preferably, the setting between sealing gasket and heat exchange plate for plate heat exchanger sheet
Pad integrated design, therefore present invention provides the pad used between heat exchange plate in plate type heat exchanger in.Institute
Stating and arrange at least one flow seal pad 9 in pad, described flow seal pad 9 will flow through the flowing of the heat exchanging fluid of heat exchange plate
Path is divided at least two and divides Cheng Liudao 7, and point Cheng Liudao 7 in described heat exchange plate 10 is cascaded structure, so that heat exchange
Fluid forms S-shaped runner on heat exchange plate 10.
In numerical simulation with it was found that, by arranging by-passing parts, it is possible to make the heat exchanger coefficient of heat transfer increase, but
It it is the increase simultaneously also bringing flow resistance.Found by numerical simulation and experiment, for the width of flow manifold, if mistake
Little, flow resistance can be caused excessive, the pressure-bearing of heat exchanger is too big, and may produce runner dual-side interlayer and flow along fluid
Direction overlaps, and causes the coefficient of heat transfer to decline, the excessive coefficient of heat transfer reducing plate type heat exchanger that also results in of width of flow path, therefore
For split channel 7, there is a suitable numerical value；Length for by-passing parts opening also has certain requirement, if opening
Too small, the quantity that fluid can be caused to be flow through by opening is too small, reduces the coefficient of heat transfer while increasing pressure, in like manner, as
The most excessive, then fluid can produce short-circuited region, does not has corresponding heat transfer effect, therefore opening is also had to a suitable length
Degree.Therefore between the Opening length of by-passing parts, the length of by-passing parts, flow manifold width, meet an optimized chi
Very little relation.
Therefore, the present invention is thousands of the numerical simulations by multiple various sizes of heat exchangers and test data,
Meet in the case of industrial requirements pressure-bearing (below 2.5MPa), in the case of realizing maximum heat exchange amount, optimal the changing summed up
The dimensionally-optimised relation of hot plate sheet.
As it is shown in fig. 7, the Opening length L1 of by-passing parts, a length of L2 of by-passing parts, flow manifold width W, then full
The following relational expression of foot:
L1/L=a-b*Ln (L1/W)-c* (L1/W)；
Wherein L=L1+L2；
400 ＜ L ＜ 800mm, 80 ＜ L1 ＜ 140mm, 130 ＜ W ＜ 150mm；Ln is logarithmic function
0.17 ＜ L1/L ＜ 0.22,0.5 ＜ L1/W ＜ 1.1
0.18 ＜ a ＜ 0.21,0.014 ＜ b ＜ 0.016,0.0035 ＜ c ＜ 0.004.
Wherein Opening length is along by-passing parts, from the position that opening occurs along the farthest position reaching fluid passage
Put, such as the A point in Fig. 7.
As preferably, a=0.19, b=0.015, c=0.0037；
As preferably, along with being continuously increased of L1/W, the numerical value of a constantly reduces；
As preferably, along with being continuously increased of L1/W, the numerical value of b, c is continuously increased.
As preferably, the flow velocity of the fluid of split channel is 0.4-0.8m/s, it is preferable that 0.5-0.6m/s, at this flow velocity
Under take above-mentioned formula to obtain heat transfer effect best.
Preferably, plate spacing 4-6mm of heat exchanging plate of heat exchanger, preferably 5mm.
For the form integrated with pad using sealing gasket in Fig. 9, in the case of also meeting above-mentioned formula, heat exchange is imitated
Fruit is optimum.
As preferably, multiple by-passing parts are parallel to each other.
As preferably, along the direction (i.e. the fluid intake of distance heat exchange plate is the most remote) of fluid flowing, same heat exchanger plates
The width W of flow manifolds different on sheet constantly reduces.Such as, the width of the flow manifold 7 in Fig. 8 is more than flow manifold
11, the width of flow manifold 11 is more than flow manifold 12.Constantly reduced so that fluid is continuous by flow manifold width W
Acceleration, it is to avoid because the fluid that causes of being short of power runs slowly.
As preferably, along the direction of fluid flowing, the width W of same flow manifold constantly reduces.Such as, shunting stream
In road 7, along fluid flow direction (i.e. Fig. 8 is from top to bottom), width W constantly reduces.Now, for the W in preceding formula
Use mean breadth W.
As preferably, on various heat exchange plate, distance heat exchanger fluid entrance is the most remote, and flow manifold width is the least.Mainly
Be that distance entrance is the most remote, then distribution fluid is the fewest, makes fluid ensure certain flow velocity by the change of width of flow path.
As preferably, heat exchange plate arranges ripple, and the height of ripple is different.On same plate, along the flowing road of fluid
Footpath, the wave height in same split channel gradually rises, such as in flow manifold 7, along fluid flow direction (i.e. Fig. 8
From top to bottom), wave height gradually rises.
As preferably, flow manifold distance heat exchange plate fluid intake distance is the most remote, the ripple in different flow manifolds
The highest, such as, the wave height in flow manifold 7 in Fig. 8 is less than flow manifold 11, the wave height of flow manifold 11
Less than flow manifold 12.
As preferably, on various heat exchange plate, distance heat exchanger fluid entrance is the most remote, and wave height is the highest.Mainly away from
From entrance more away from, then distribution fluid is the fewest, makes fluid ensure certain flow velocity by the change of wave height.
As preferably, heat exchange plate arranges ripple, and the density of ripple is different.On same plate, along the flowing road of fluid
Footpath, the corrugation density in same split channel becomes larger, such as in flow manifold 7, along fluid flow direction (i.e. Fig. 8
From top to bottom), corrugation density becomes larger.
As preferably, flow manifold distance heat exchange plate fluid intake distance is the most remote, the ripple in different flow manifolds
Density becomes big.Such as, the corrugation density in flow manifold 7 in Fig. 8 is less than flow manifold 11, the corrugation density of flow manifold 11
Less than flow manifold 12
As preferably, on various heat exchange plate, distance heat exchanger fluid entrance is the most remote, and corrugation density is the biggest.Mainly away from
From entrance more away from, then distribution fluid is the fewest, makes fluid ensure certain flow velocity by the change of wave height.
As preferably, the amplitude that wave height noted earlier and/or density increase is more and more less.
As preferably, the gasket seal between sealing gasket 9 and/or heat exchange plate uses elastomeric material.Described elastomeric material
It is made up of the raw material of following parts by weight: ethylene propylene diene rubber 7-9 part, butadiene-styrene rubber 3-6 part, zinc oxide 6-8 part, white carbon
13-15 part, accelerator 4-5 part, foaming agent 2-8 part, naphthenic oil 5-6 part, titanium dioxide 20 parts, natural rubber 50-55 part,
Rhein dissipates 10-13 part, silicone rubber 15-17 part, carborundum 2 parts, Melamine 2 parts, 0.6 part to 1.5 parts of age resistor, softening agent
4 parts to 6 parts, vulcanizing agent 2.2 parts to 4 parts.
As preferably, ethylene propylene diene rubber 8 parts, butadiene-styrene rubber 5 parts, zinc oxide 7 parts, white carbon 14 parts, accelerator 4 parts, send out
Infusion 4 parts, naphthenic oil 6 parts, titanium dioxide 20 parts, natural rubber 52 parts, Rhein dissipates 12 parts, 16 parts of silicone rubber, carborundum 2 parts, and three
Polynitriles amine 2 parts, 0.9 part of age resistor, softening agent 5 parts, vulcanizing agent 3 parts.
Manufacture method comprises the steps:
A. in banbury, it is sequentially added into described ethylene propylene diene rubber, butadiene-styrene rubber, zinc oxide, white carbon, accelerator, foaming
Agent, naphthenic oil, titanium dioxide, natural rubber, Rhein dissipate, silicone rubber, carborundum, Melamine and accelerator and age resistor, so
Rear startup banbury carries out the most mixing, and 70 seconds to 75 seconds time, temperature is 60 DEG C to 70 DEG C；
B. adding softening agent in the banbury of step A and carry out the most mixing, 75 seconds time, temperature is less than 105 DEG C, so
Rear cooling binder removal；
C. sulfuration: the glue of step B is discharged on tablet machine add vulcanizing agent and turns refining, second time 125-140, under
Sheet and get final product.
As preferably, accelerator is diphenylguanidine.
As preferably, described accelerator is dithiocar-bamate；Described age resistor is Tissuemat E；Described softening agent
For paraffin；Described vulcanizing agent is curing resin.
Described rubber has the advantage that 1) compounded by the material of interpolation zinc oxide, titanium dioxide, resulting materials is elastic
Good, and there is certain hardness, wear-resisting durable, the life-span is long, the most easy to wear.2) owing to using Tissuemat E as anti-aging
Agent, can improve the persistence of rubber, hardness and abrasion resistance；3) cure time is short, makes rubber be handed over by the macromole of linear structure
Be unified into the macromole for space network, its anti-tensile of the rubber of output, surely stretch, wear-resisting performance good.
Figure 10 illustrates the flow channel of the big fluid of flow, it practice, for the present invention, two kinds of heat exchanging fluids are all
The fluid that flow is little can be used.Such as in the case of heat exchange plate is certain, the flow of two kinds of fluids is the least, now two kinds
The flow channel of fluid can take the plate of Fig. 8, Figure 11 form.
Although the present invention discloses as above with preferred embodiment, but the present invention is not limited to this.Any art technology
Personnel, without departing from the spirit and scope of the present invention, all can make various changes or modifications, and therefore protection scope of the present invention should
When being as the criterion with claim limited range.
Claims (3)
1. a boiler thermodynamic system, including multiple boilers of CSRC diagnostic system, fuel delivery means and parallel connection, each
Individual boiler respectively with CSRC diagnostic system data cube computation, described CSRC diagnostic system and every boiler, fuel defeated
Device is sent to carry out data cube computation, in order to obtaining the fuel input of every boiler in time, CSRC diagnostic system is according to obtaining
The quality of steam of every boiler output and fuel input, monitor the ton steam consumption fuel quantity parameter of every boiler, institute in real time
State boiler ton steam consumption fuel quantity be boiler a period of time produce steam total amount divided by this section of time fuel input quantity of boiler,
Obtain a ton index for steam consumption fuel quantity；
It is characterized in that, CSRC diagnostic system is by analyzing the ton steam consumption fuel quantity index of every boiler, and analysis is judged
The boiler that ton steam consumption fuel quantity is higher, increases its operating load；And for the relatively low boiler of ton steam consumption fuel quantity, reduce it
Operating load；If boiler ton steam consumption fuel quantity is less than lower limit, then send alarm.
2. boiler thermodynamic system as claimed in claim 1, including steam turbine, electromotor, vapor-water heat exchanger, the steaming that boiler produces
Vapour drives electromotor to generate electricity by steam turbine, and meanwhile, the exhaust steam after generating enters in vapor-water heat exchanger, with vapor-water heat exchanger
Low-temperature receiver carry out heat exchange, the condensed water of exhaust steam loops back boiler by circulating pump.
3. boiler thermodynamic system as claimed in claim 2, it is characterised in that described vapor-water heat exchanger is plate type heat exchanger；Described
The flow of the heat exchanging fluid participating in heat exchange in plate type heat exchanger is different, and described plate type heat exchanger includes heat exchange plate, at flow
Arranging at least one by-passing parts in little heat exchange plate, described by-passing parts will flow through the flowing of the heat exchanging fluid of heat exchange plate
Path is divided at least two flow manifold, and by-passing parts arranges opening so that point Cheng Liudao in described heat exchange plate is string
Connection structure, so that the little heat exchanging fluid of flow forms S-shaped runner on heat exchange plate；Heat exchange plate arranges ripple, ripple
Highly different；On same plate, along the flow path of fluid, the wave height in same split channel gradually rises.
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| CN106016228B (en) * | 2016-05-20 | 2017-03-15 | 西安交通大学 | A kind of steam generator system for being optimized operation according to economic worth index |
| CN110220212B (en) * | 2019-06-17 | 2020-10-30 | 联盛纸业（龙海）有限公司 | Method for improving thermal efficiency of boiler |
| CN112326291B (en) * | 2020-11-05 | 2023-09-01 | 上海电科电机科技有限公司 | Boiler energy efficiency detection method, device, computer equipment and readable storage medium |
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| CN201811196U (en) * | 2010-07-23 | 2011-04-27 | 福建省建宁县联丰造纸有限公司 | Auxiliary boiler control device used in grain combustion boiler system |
| CN102997216A (en) * | 2012-12-26 | 2013-03-27 | 北华大学 | Method for determining best setting value of chain furnace control system |
| CN104456514A (en) * | 2015-01-13 | 2015-03-25 | 成都鼎智汇科技有限公司 | Method for detecting abnormal energy consumption of boiler |
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