CN106122921B - The therrmodynamic system of integral monitoring is carried out by economic indicator of steam price - Google Patents

The therrmodynamic system of integral monitoring is carried out by economic indicator of steam price Download PDF

Info

Publication number
CN106122921B
CN106122921B CN201610417119.8A CN201610417119A CN106122921B CN 106122921 B CN106122921 B CN 106122921B CN 201610417119 A CN201610417119 A CN 201610417119A CN 106122921 B CN106122921 B CN 106122921B
Authority
CN
China
Prior art keywords
boiler
price
sef
steam
fuel
Prior art date
Application number
CN201610417119.8A
Other languages
Chinese (zh)
Other versions
CN106122921A (en
Inventor
张雪原
赵丽颖
Original Assignee
青岛中正周和科技发展有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 青岛中正周和科技发展有限公司 filed Critical 青岛中正周和科技发展有限公司
Priority to CN201610417119.8A priority Critical patent/CN106122921B/en
Priority to CN201510326000.5A priority patent/CN104896458B/en
Publication of CN106122921A publication Critical patent/CN106122921A/en
Application granted granted Critical
Publication of CN106122921B publication Critical patent/CN106122921B/en

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22STEAM GENERATION
    • F22BMETHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B35/00Control systems for steam boilers
    • F22B35/18Applications of computers to steam boiler control
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22STEAM GENERATION
    • F22BMETHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B35/00Control systems for steam boilers
    • F22B35/008Control systems for two or more steam generators
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22STEAM GENERATION
    • F22BMETHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B33/00Steam-generation plants, e.g. comprising steam boilers of different types in mutual association
    • F22B33/18Combinations of steam boilers with other apparatus
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P80/00Climate change mitigation technologies for sector-wide applications
    • Y02P80/10Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier
    • Y02P80/15On-site combined power, heat or cool generation or distribution, e.g. combined heat and power [CHP] supply

Abstract

The invention provides a kind of boiler thermodynamic system, including CSRC diagnostic system and multiple boilers in parallel, each described boiler respectively with CSRC diagnostic system data cube computation, the fuel delivery means of the CSRC diagnostic system and every boiler carry out data cube computation;The power information of the CSRC diagnostic system and every boiler carries out data cube computation, by the way that one the most entirety of the boiler of many paired runnings is considered into gross ton vapour is worth SEFALLSize, and the price of both is added, total price is obtained, this period of time all boiler is then produced into steam gross mass SGross mass ALLDivided by above-mentioned total price, obtain a ton vapour value SEFALLIndex.By the gross ton vapour value parameter for monitoring boiler in real time, it can be deduced that SEFALLThe parameter of every boiler during maximum, so that the boiler of parallel connection can be caused to run under the above parameters in the process of running so that SEFALLReach maximum.The present invention can make therrmodynamic system remain Effec-tive Function, it is to avoid energy waste.

Description

The therrmodynamic system of integral monitoring is carried out by economic indicator of steam price
Technical field
The invention belongs to field of boilers, belong to F22 fields.
Background technology
In steam operation procedure, ton vapour value should belong to a very important parameter, and ton vapour value index is to weigh Boiler whether an important indicator of Effec-tive Function,.Therefore by steam boiler running, spent subsidiary engine power consumption Price is converted to respectively with the total amount of fuel of input, and the price of both is added, and total price is obtained, when then with this section Between the steam total amount divided by above-mentioned total price that produce, obtain a ton index for vapour value, but do not propose that this refers at present Mark and this index is monitored and used, therefore by monitoring Boiler Steam value index in real time, it is analyzed Processing, judges boiler operatiopn state, and guides Automatic Control of Boiler strategy, for improving boiler operating efficiency, saves energy tool It is significant.
The content of the invention
Ton steam consumption electrical parameter of the invention by monitoring every boiler in real time, the running status of real-time diagnosis boiler makes Boiler remains 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 CSRC diagnostic system and multiple boilers in parallel, each described boiler Respectively with CSRC diagnostic system data cube computation, the fuel delivery means of the CSRC diagnostic system and every boiler enter Row data cube computation, to obtain the fuel input of every boiler in time;The CSRC diagnostic system and every boiler Power information carries out data cube computation, so as to the power consumption of the subsidiary engine that obtains every boiler in time, CSRC diagnostic system according to Quality of steam, fuel input and the power consumption of obtained every boiler output;
By the way that one the most entirety of the boiler of many paired runnings is considered into gross ton vapour is worth SEFALLSize, will own The total amount of fuel that boiler a period of time runs spent subsidiary engine power consumption total amount and input is converted to price respectively, and by this two The price of person is added, and obtains total price, and this period of time all boiler then is produced into steam gross mass SGross mass ALLDivided by it is above-mentioned Total price, obtain a ton vapour value SEFALLIndex.That is SEFALL=SGross mass ALL/(FGross mass all*FUnit price+EPower consumption all*EUnit price), wherein FUnit price、EUnit priceIt is price, the price of per unit electricity, F of per unit fuel respectivelyGross mass all、EPower consumption allRepresent that all boilers are defeated respectively The total fuel quantity and subsidiary engine entered expends total electricity;
By the gross ton vapour value parameter for monitoring boiler in real time, it can be deduced that SEFALLThe parameter of every boiler during maximum, So as to which the boiler of parallel connection can be caused to run under the above parameters in the process of running so that SEFALLReach maximum.
It is preferred that, the subsidiary engine power consumption, fuel input quality, steam that the parameter of boiler includes but is not limited to every boiler are defeated Enter at least one of quality, air inducing unit frequency, air-supply unit frequency, circulation pump frequency.
It is preferred that, boiler gross ton vapour value parameter can dynamically update, and always accumulate for the previous period, preferably 5 minutes Data are shown as result of calculation, it is possible to draw out trend curve.
It is preferred that, the system includes steam turbine, generator, vapor-water heat exchanger, and the steam that boiler is produced passes through steam turbine band Dynamic generator is generated electricity, meanwhile, the exhaust steam after generating enters vapor-water heat exchanger, is changed with the low-temperature receiver in vapor-water heat exchanger Heat, the condensed water of exhaust steam circulates back boiler by circulating pump.
It is preferred that, the vapor-water heat exchanger is plate type heat exchanger.
Preferably, the flow that the heat exchanging fluid of heat exchange is participated in the plate type heat exchanger is different, the plate type heat exchanger Include heat exchange plate, at least one by-passing parts is set in the small heat exchange plate of flow, the by-passing parts will be flowed through and changed The flow path of the heat exchanging fluid of hot plate piece is divided at least two flow manifolds, and by-passing parts set opening so that described changes Point Cheng Liudao in hot plate piece is cascaded structure, so that the small heat exchanging fluid of flow forms S-shaped runner on heat exchange plate.
Preferably, heat exchange plate sets ripple, the height of ripple is different;On same plate, along the flowing road of fluid Wave height in footpath, same split channel gradually rises.
Preferably, the Opening length L1 of by-passing parts, the length of by-passing parts is L2, flow manifold width W, then meets 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。
Preferably, along the direction of flow of fluid, the width W of different flow manifolds constantly subtracts on same plate It is few.
Compared with prior art, plate type heat exchanger of the invention and its therrmodynamic system have the following advantages:
1) by monitoring the parameter that the ton steam consumption of parallel boiler is worth in real time, the boiler of paired running is realized to mark Analysis, makes efficiency highest boiler be in peak load state all the time, and the low boiler of efficiency is pinpointed the problems and solved as early as possible in time, All the time the boiler of operation is made to keep efficient..
2) by monitoring the rate of water make-up of every boiler in real time and producing quantity of steam, obtain rate of water make-up and produce the dynamic of quantity of steam State relation, judges whether boiler blow-out system is working properly, prevents due to the substantial amounts of heat energy that boiler blow-out system failure is caused Waste.
3) the combustion system DCS and electricity generation system DCS of all boilers of enterprise are incorporated into a Centralized Monitoring automation to supervise Platform is controlled, this platform can realize the tubularpH sensor to the various important parameters of all boilers, and it is carried out online Diagnostic analysis, solves the problems, such as the island of automation that existing boiler operatiopn is present, and realize boiler energy-saving optimization operation.
4) present invention only changes sealing structure to realize that hot and cold side liquid actual internal area is unequal with same plate Demand, and the plate type heat exchanger that these plates assemble can save very big peace using the assembling form of unilateral adapter Dress and maintenance cost.
5) present invention obtains an optimal heat exchange plate optimum results, and carry out by testing by test of many times Checking, so as to demonstrate the accuracy of result.
6) the on-line analysis diagnostic system of boiler operatiopn and steam turbine power generation is developed, realizes that boiler energy-saving is run, Save the energy.
Brief description of the drawings
Fig. 1 is boiler thermodynamic system schematic diagram of the present invention;
Fig. 2 is boiler combustion system control schematic diagram of the present invention;
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 view of the present invention;
Fig. 6 is runner plate type heat exchanger schematic diagram 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 big fluid of plate type heat exchanger flow of the invention;
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 Fig. 8 plate type heat exchanger point journey plate;
Figure 13 is the schematic diagram that drainage of the present invention is automatically controlled.
Reference is as follows:
1 first fluid import, the outlet of 2 first fluids, 3 second fluid imports, the outlet of 4 second fluids, 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 generators, 17 small pumps, 18 water circulating pumps, 19 vapor-water heat exchangers, 20 CSRC diagnostic systems, 21CO/CO2Content is set and Acquisition Instrument, 22CO/CO2Content measuring instrument, 23 Fan Regulation valves, 24 blower fans, the control of 25 fuel flow rates Adjusting means, 26 Fuel lances, 27 exit flues, 28 sealed grooves, 29 is raised, and 30 is raised, 31 openings;32 drums, 33 waste heats Heat exchanger, 34 flowmeters, 35 pressure gauges, 36 thermometers, 37 Water Test Kits, 38 adjustment mechanism for valve, 39 blowoff valves, 40 valves Door, 41 adjustment mechanism for valve, 42 flowmeters
Embodiment
The embodiment to the present invention is described in detail below in conjunction with the accompanying drawings.
Herein, if without specified otherwise, being related to formula, "/" represents division, and "×", " * " represent multiplication.
A kind of boiler thermodynamic system, the boiler thermodynamic system includes many boilers 14, for producing steam, described many Boiler 14 carries out data cube computation with CSRC diagnostic system 20 respectively, so that the operation to boiler is monitored.
By the way that the operation automatic system for monitoring of all boilers is incorporated into an automatically-monitored platform of Centralized Monitoring, i.e., CSRC diagnostic system 20, this platform can realize the automatic online monitoring to the various parameters of all boilers, solve The island of automation problem that existing boiler operatiopn is present.
Further, as shown in figure 1, the boiler thermodynamic system includes boiler 14, steam turbine 15, generator 16, carbonated drink Then heat exchanger 19, the steam that boiler 14 is produced generated electricity by steam turbine 15 by generator 16, meanwhile, after generating The low-temperature receiver that comes that exhaust steam enters in vapor-water heat exchanger 19, with vapor-water heat exchanger 19 is exchanged heat, and the condensed water of exhaust steam passes through circulation Pump 18 circulates back boiler 14.
Preferably, the boiler 14 has multiple, accordingly, most circulating pumps 18 also have multiple.
Preferably, the vapor-water heat exchanger 19 has multiple, the vapor-water heat exchanger 19 is multiple in series or in parallel Structure.
The CSRC diagnostic system 20 carries out data cube computation with boiler 14 and steam turbine 15, so as to boiler and steamer The operation of machine is monitored.
Fig. 1 is to illustrate a boiler 14 with CSRC diagnostic system 20 to be connected, in fact, all boilers 14 are all It is connected with CSRC diagnostic system 20, because simplifying reason, is all not shown in figure.
The operation automatic system for monitoring and generating automated system of all boilers are incorporated into a Centralized Monitoring automatic Change 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, solves the problems, such as the island of automation of existing boiler generator operation presence.
Certainly, the boiler thermodynamic system also includes being not shown in water charging system, accompanying drawing 1.
Preferably, as shown in Fig. 2 the automatic system for monitoring of the boiler 14 includes boiler combustion monitoring automation system System, mainly including CO/CO2Content is set and Acquisition Instrument 21, CO/CO2Content measuring instrument 22, Fan Regulation valve 23, blower fan 24, combustion Stream amount controls to adjust device 25, Fuel lance 26.Described one end of Fuel lance 26 connects boiler, and combustion is added toward boiler furnace Material, other end connection fuel flow rate controls to adjust device 25, and the control and regulation device 25 is counted with CSRC diagnostic system 20 According to connection.Described one end of blower fan 24 is connected with boiler, is responsible for burner hearth blowing-in and combustion-supporting, one end is connected with Fan Regulation valve 23, institute The air quantity that Fan Regulation valve regulation enters blower fan is stated, the Fan Regulation valve 23 carries out data company with CSRC diagnostic system 20 Connect.The 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, the CO/CO2Content is set and the one end of Acquisition Instrument 21 connects CO/CO2Content measuring instrument 22, the other end is examined with CSRC Disconnected system 20 carries out data cube computation.The CO/CO2Content is set and Acquisition Instrument 21 is used to gather CO/CO2Content data and setting Data.
The monitoring process of boiler combustion automatic system for monitoring is as follows:
Burning release CO volume contents are V1 in the unit interval during boiler combustion, burning release in unit interval during burning CO2Volume content is V2.In CO/CO2Content is set and V1 when setting boiler is normally run in Acquisition Instrument 21SettingAnd V2Setting. In actual boiler running process, CSRC diagnostic system can be according to CO/CO2The data that content is set and Acquisition Instrument 21 is gathered are certainly The dynamic fuel quantity to ventilation and conveying is controlled.
Certainly, preferably, V1 can also be set in CSRC diagnostic system 20SettingAnd V2Setting
For the regulation of CO contents, if the CO of measurement content V1Measurement>V1Setting, then show ventilation not enough, therefore in The instruction that increase ventilation can be passed to Fan Regulation valve by centre monitoring and diagnosis system, by increase the aperture of Fan Regulation valve 23 come Increase air output, if the CO of measurement V1Measurement<V1Setting, and the CO measured2Content V2Measurement<V2Setting, then ventilation mistake is shown It is many, therefore the instruction for reducing ventilation can be passed to Fan Regulation valve 23 by CSRC diagnostic system, by reducing Fan Regulation The aperture of valve 23 reduces air output.
Certainly, alternatively, if the CO of measurement content V1Measurement>V1Setting, then show that fuel quantity is excessive, therefore The instruction for reducing fuel quantity can be passed to fuel flow rate and control to adjust device 25 by CSRC diagnostic system, pass through fuel flow rate Control to adjust device 25 to reduce fuel quantity, if the CO of measurement V1Measurement<V1Setting, and the CO measured2Content V2Measurement< V2Setting, then show that fuel quantity is very few, therefore the instruction for increasing fuel quantity can be passed to fuel flow rate by CSRC diagnostic system Device 25 is controlled to adjust, fuel flow rate is reduced by fuel flow rate control and regulation device 25.
Certainly, to the regulation of CO contents, preferably, above two regulative mode can be used, to accelerate simultaneously Governing speed.
For CO2The regulation of content, if the CO of measurement2Content V2Measurement<V2Setting, show undercharge, therefore center The instruction for increasing fuel quantity can be passed to fuel flow rate and control to adjust device 25 by monitoring and diagnosis system 20, pass through fuel flow rate Control to adjust device 25 reduces fuel flow rate.
For CO2The regulation of content, is carried out in the case where CO content meets setting value.
If preferably, the CO of measurement2Content V2Measurement<V2Setting, then show that ventilation is excessive, therefore CSRC is diagnosed The instruction for reducing ventilation can be passed to Fan Regulation valve 23 by system, and air-supply is reduced by reducing the aperture of Fan Regulation valve 23 Amount.
Certainly, to CO2The regulation of content, preferably, can use above two regulative mode simultaneously, to accelerate Governing speed.
Preferably, V1SettingAnd V2SettingIt is a continuous number range.That is V1Measurement、V2MeasurementAs long as in number range It is interior, required even if meeting.
Preferably, can be to CO, CO2In each independently carry out Automated condtrol, such as only control CO or only Control CO2, or both all control.
Preferably, in CSRC diagnostic system 20 set CO the upper limit and/or lower limit alert data and/or CO2Lower limit alert data.Once having exceeded the upper limit or the data of lower limit, CSRC diagnostic system 20 is issued by alarm signal Number.Such a situation shows to have failed for the control of air output and fuel delivery, and possible boiler operatiopn goes wrong, and needs To be overhauled at once.
Preferably, CO/CO in described flue gas2Content detection instrument is to use moral figure testo350Pro analytical instrument, resistance to The warm limit is up to 500 DEG C, so as to meet pyrometric requirement.
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 to CSRC diagnostic system 20 is realized The real time on-line monitoring of all operation boiler emphasis parameters
Preferably, the generating automated system include being adjusted according to generation load before the machine of the steam turbine pressure and Power output.
Preferably, the generating automated system includes the air output and fuel of the generation load regulation boiler collected Amount, while adjusting the pushing quantity of boiler.
The generating automated system is as shown in figure 3, CSRC diagnostic system gathers the output load of generator 16.Make To be preferred, output load is shown in real time.If necessary to increase output load, then CSRC diagnostic system sends instruction, Control to adjust device 25 by Fan Regulation valve 23 and fuel flow rate increases air output and fuel quantity simultaneously, while passing through small pump 17 conveying power increases rate of water make-up.Certainly, preferably, can also be increased by the power increase of pump 18 into boiler Quantity of circulating water.Certainly preferably, can increase power simultaneously to accelerate regulating time by small pump 17 and water circulating pump 18.
If necessary to reduce output load, then CSRC diagnostic system 20 sends instruction, passes through the He of Fan Regulation valve 23 Fuel flow rate controls to adjust device 25 and reduces air output and fuel quantity simultaneously, while being reduced by the conveying power of small pump 17 Rate of water make-up.It is of course also possible to reduce to reduce the quantity of circulating water into boiler by the power of pump 18.Certainly preferably, can be with Reduce power simultaneously to accelerate regulating time by small pump 17 and water circulating pump 18.
Preferably, if necessary to increase output load, then CSRC diagnostic system sends instruction, increase the steamer Pressure and power output before the machine of machine.If necessary to reduce output load, then CSRC diagnostic system sends instruction, reduces institute State pressure and power output before the machine of steam turbine.
Pass through above-mentioned 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 in Fig. 1,2, Omitted herein, those skilled in the art according to Fig. 1-3 combine specification record it will be appreciated that.
Preferably, as shown in figure 13, every boiler also includes automatically controlling drainage, the row of automatically controlling The quantity of steam and the water of input boiler that dirty system is produced according to boiler are automatically controlled.If quantity of steam and input boiler Ratio between water is less than lower numerical limit, then CSRC diagnostic system 20 automatically controls reduction blowdown flow rate.If quantity of steam The ratio between water with inputting boiler is more than limit value, then CSRC diagnostic system 20 automatically controls increase blowdown Amount.Specific control system is as follows:
As shown in figure 13, the boiler includes flowmeter 34, pressure gauge 35 and the temperature being arranged on steam (vapor) outlet pipeline Meter 36, flow velocity, pressure and temperature for measuring output steam.The flowmeter 34, pressure gauge 35 and thermometer 36 respectively with CSRC diagnostic system 20 carry out data cube computation, so as to by the data transfer of measurement to CSRC diagnostic system 20, in Entreat in monitoring system according to the vapor (steam) temperature of measurement, pressure, the quality of steam of flow relocity calculation unit interval.
The boiler includes setting blowoff valve 39, blowoff valve on the blow-off pipe for being arranged on the lower end of boiler-steam dome 32, blow-off pipe 39 one end connecting valve adjusting meanss 38, adjustment mechanism for valve 38 carries out data cube computation with CSRC diagnostic system 20, so as to By valve opening data transfer to CSRC diagnostic system 20, while receiving instruction from central monitoring and diagnosis system 20, adjust The aperture of blowoff valve 39.
Further comprise flowmeter 41 on the blow-off pipe, measure the flow of blowdown.The flowmeter 41 and CSRC Diagnostic system 20 carries out data cube computation, to pass data to CSRC diagnostic system 20.CSRC diagnostic system 20 The blowdown flow rate of unit interval is calculated according to flowmeter.
Flowmeter is set on the water inlet manifold of the boiler, for detect enter boiler in flow, the flowmeter with CSRC diagnostic system 20 carries out data cube computation, so as to by the data transfer of measurement to CSRC diagnostic system 20, center Monitoring and diagnosis system 20 enters the flow of the water of boiler according to the flow rate calculation unit interval of measurement.
Certainly, into boiler water be both circulating water pipe and filling pipe water summation.Preferably, can be in moisturizing Set respectively on pipe and circulating water pipe with the flowmeter of the data cube computation of CSRC diagnostic system 20, by both calculate flows it With, thus the unit of account time enter the total water of boiler.The present invention can be using various control strategy come control of sewage disposal amount.
One preferred control strategy is:The quality of steam that CSRC diagnostic system 20 is calculated and the matter of the water of input boiler The ratio of amount is less than lower limit, then shows that blowdown rate is too high, therefore CSRC diagnostic system 20 passes through adjustment mechanism for valve 38 The automatic aperture for turning blowoff valve 39 down.By aforesaid operations, blowdown can be avoided excessive, cause the waste of the energy.If steam The ratio of quality and the quality of the water of input boiler is more than higher limit, then shows that blowdown rate is too low, may influence the longevity of boiler Order, then CSRC diagnostic system 20 passes through the aperture that adjustment mechanism for valve 38 improves blowoff valve 39 automatically.
Preferably, in the case that if the aperture of blowoff valve 39 were maximum, quality of steam and the quality of the water of input boiler Ratio still be less than lower limit, then system can give a warning, point out drainage whether break down.
If preferably, in the case of the closing of blowoff valve 39, the ratio of quality of steam and the quality of the water of input boiler Value is still more than higher limit, then system can give a warning, and points out whether drainage breaks down.
One preferred control strategy is the quality of the water for the blowdown that CSRC diagnostic system 20 is detected by flowmeter 41 When exceeding the upper limit with the ratio of the quality for the water for inputting boiler, then show that blowdown flow rate is excessive, therefore CSRC diagnostic system 20 Turn the aperture of blowoff valve 39 down automatically 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 show 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 in this way, avoid the water quality in drum too poor, in order to avoid cause boiler vapour The corrosion of bag.
One preference policy, the drum 32 also includes Water Test Kits 37, to measure the water quality in drum.The water quality Analyzer 37 carries out data cube computation with CSRC diagnostic system 20, to receive the data of measurement, according to the data pair of measurement Blowoff valve 39 carries out aperture control.If the as shown by data water quality of measurement is excessively poor, such as a certain index exceeds the data upper limit, then needs Timely blowdown is carried out, therefore CSRC diagnostic system 20 tunes up opening for blowoff valve 39 automatically by adjustment mechanism for valve 38 Degree.If the as shown by data water quality of measurement is good, CSRC diagnostic system 20 passes through the automatic row of turning down of adjustment mechanism for valve 38 The aperture of dirty valve 39.Even blowoff valve can be closed in the case of necessity.
One preference policy, sets Water Test Kits (not shown), to measure the water in blow-off pipe on blow-off line Matter.The Water Test Kits carries out data cube computation with CSRC diagnostic system 20, to receive the data of measurement, according to measurement Data to blowoff valve carry out aperture control.If the as shown by data water quality of measurement is excessively poor, such as a certain index is in data Limit, then need to increase blowdown flow rate, therefore CSRC diagnostic system 20 tunes up blowoff valve 39 automatically by adjustment mechanism for valve 38 Aperture.If the as shown by data water quality of measurement is good, CSRC diagnostic system 20 is adjusted automatically by adjustment mechanism for valve 38 The aperture of small blowoff valve 39.Even blowoff valve can be closed in the case of necessity.
Preferably, waste heat utilization heat exchanger 33 is connected on the blow-off line, the waste heat utilization heat exchanger 33, so as to Make full use of the heat of sewage.The low-temperature receiver inlet tube of heat exchanger 33 sets valve 40, the valve 40 and adjustment mechanism for valve 41 Connection, adjustment mechanism for valve 41 carries out data cube computation with CSRC diagnostic system 20, so as to which the aperture data of valve 40 are passed Pass CSRC diagnostic system 20 and while receiving the instruction of CSRC diagnostic system 20.If CSRC diagnostic system The blowdown flow rate of 20 measurements increases, then CSRC diagnostic system 20 increases the aperture of valve 0 by adjustment mechanism for valve 41, to increase The low-temperature receiver amount into heat exchanger 33 is added, keeps the temperature of the low-temperature receiver of the output of heat exchanger 33 constant, while avoiding low-temperature receiver from overheating.If The blowdown flow rate that CSRC diagnostic system 20 is measured is reduced, 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 into heat exchanger 33, keeps the temperature of the low-temperature receiver of the output of heat exchanger 33 constant, simultaneously Avoid low-temperature receiver heating effect too poor.Preferably, the heat exchanger 33 can set multiple.
As preference policy, CSRC diagnostic system 20 can by calculate quality of steam and blowdown quality sum with it is defeated The ratio for entering the quality of the water of boiler calculates 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, water-level gauge (not shown) is set, the water-level gauge is diagnosed with CSRC is in drum 32 System 20 carries out data cube computation, so as to which measurement data is passed into CSRC diagnostic system 20.CSRC diagnostic system 20 According to the height of water level change of the data unit of account time of measurement, so that the quality for calculating the water unit interval in drum 32 becomes Change.CSRC diagnostic system 20 adjusts blowoff valve according to the change of quantity of steam, the water and drum water of boiler input 39 aperture.If CSRC diagnostic system 20 calculate quality of steam plus the water of boiler-steam dome 32 mass change sum with The ratio for inputting the quality of the water of boiler is less than lower limit less than certain numerical value, then shows that blowdown rate is too high, therefore CSRC Diagnostic system 20 turns the aperture of blowoff valve 39 down by adjustment mechanism for valve 38 automatically.By aforesaid operations, blowdown can be avoided It is excessive, cause the waste of the energy.By increase steam water-level detect, further increase measurement data it is accurate.
As preference policy, CSRC diagnostic system 20 can by calculate quality of steam, drum water variable quality The water loss of boiler is calculated with the ratio of blowdown quality three sum and the quality of the water of input boiler.If the water calculated is damaged The upper limit was quenched, CSRC diagnostic system 20 then sends alarm.
Preferably, setting the temperature of measurement drum reclaimed water and the device of drum pressure, described device is examined with CSRC The disconnected data cube computation of system 20, the quality that CSRC diagnostic system 20 calculates drum reclaimed water according to the temperature and pressure of measurement becomes Change.The quality of water is calculated by temperature and pressure so that result is more accurate.
Preferably, setting the device of measurement vapor (steam) temperature and pressure in drum, described device is diagnosed with CSRC is Unite 20 data cube computations, CSRC diagnostic system 20 calculates vapour according to height of water level in the temperature and pressure and drum of measurement The quality of steam in bag.So, in calculating above, according to the mass change of steam in drum, export steam quality and The size of the conjunction of the mass change three of drum reclaimed water and the ratio of the quality of the water of input boiler carrys out the aperture of control of sewage disposal valve. So make it that result of calculation is more accurate.
Equally, be also required to the mass change of steam in drum, export when the loss for calculating water steam quality and The mass change and blowdown flow rate sum of drum reclaimed water are contrasted with boiler input water.
Preferably, thermometer can be set on blow-off pipe, water temperature of the CSRC diagnostic system 20 according to blowdown, water Composition and the blowdown of flow relocity calculation unit interval water quality.
Preferably, prestoring the temperature, pressure of steam and the relation number of density in CSRC diagnostic system 20 According to calculate quality of steam.The temperature and density relationship data of water can also be prestored, while calculating the matter of drum reclaimed water Amount.Relation for the temperature of sewage, composition and density is also prestored in lower CSRC diagnostic system 20.
Preferably, CSRC diagnostic system 20 is according to the quality of steam of obtained output and the fuel quantity of input, The ton steam consumption fuel quantity parameter of boiler is monitored in real time, and the running status of real-time diagnosis boiler makes boiler remain Effec-tive Function, Avoid the energy waste caused under boiler efficiency.
Boiler ton steam consumption fuel quantity SF is defined as the steam gross mass S produced boiler a period of timeGross massDivided by boiler this The fuel gross mass F of input in the section timeGross mass, obtain a ton index for steam consumption fuel quantity.That is SF=SGross mass/FGross mass
If boiler ton steam consumption fuel quantity is excessive, show that boiler efficiency is low, it is necessary to carry out examination and maintenance.
Boiler ton steam consumption fuel quantity can dynamically update, and always accumulate for the previous period, for example, can be minute, the second, small When etc., the data of preferably 5 minutes are shown as result of calculation in CSRC diagnostic system 20, it is possible to draw out trend Curve.
By the ton steam consumption fuel quantity parameter for monitoring boiler in real time, it can be deduced that the parameter of boiler during SF maximums, for example Including but not limited to subsidiary engine power consumption, fuel input quality, steam input quality, air inducing unit frequency, air-supply unit frequency, circulation At least one of parameters such as pump frequency.So as to boiler be caused to run under the above parameters in the process of running so that SF Maximum is reached, so as to reach fuel-saving purpose.
Preferably, above-mentioned parameter is all the mean parameter in a period of time.
Preferably, fuel is coal.
Preferably, CSRC diagnostic system 20 also carries out data cube computation with power information, 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 and power consumption of obtained output, in real time The ton steam consumption electrical parameter of every boiler is monitored, the running status of real-time diagnosis boiler makes boiler remain Effec-tive Function, kept away Exempt from the energy waste caused under boiler efficiency.
The 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 the steam gross mass S produced boiler a period of timeGross massDivided by boiler this section The summation E of all subsidiary engine power consumption in timePower consumption, obtain a ton index for steam consumption electricity.That is SE=SGross mass/EPower consumption
If boiler ton steam consumption electricity is excessive, show that boiler efficiency is low, it is necessary to carry out examination and maintenance.
Boiler ton steam consumption electricity can dynamically update, and always accumulate for the previous period, for example, can be minute, second, hour Deng the data of preferably 5 minutes are shown as result of calculation, it is possible to draw out trend curve.
Preferably, the ton steam consumption electrical parameter by monitoring boiler in real time, it can be deduced that the ginseng of boiler during SE maximums Number, for example including but not limited to subsidiary engine power consumption, fuel input quality, steam input quality, air inducing unit frequency, pressure fan frequency At least one of parameters such as rate, circulation pump frequency.So as to boiler be caused to run under the above parameters in the process of running, So that SE reaches maximum, so as to reach the purpose for saving electricity.
Preferably, above-mentioned parameter is all the mean parameter in a period of time.
Preferably, by monitoring the ton steam consumption fuel quantity of parallel boiler and/or the parameter of ton steam consumption electricity in real time, The boiler of paired running is realized mark is analyzed, the higher boilers of SE and/or SF is in peak load state all the time, SE and/ Or the low boilers of SF are pinpointed the problems and solved as early as possible in time, the boiler of operation is set to keep efficient all the time.
Preferably, by analyzing ton vapour coal consumption and/or ton steam consumption electricity index to marking every boiler, analysis judges Go out the higher boilers of SE and/or SF, increase its operating load;And for SE and/or SF relatively low boiler, reduce its operation Load, if boiler SE and/or SF are less than normal operating experience data, need shutdown maintenance as early as possible, improves after its thermal efficiency Put into operation as early as possible again.
Preferably, it is of course also possible to Manual analysis judges the higher boilers of SE and/or SF, increasing its operating load; And for SE and/or SF relatively low boiler, its operating load is reduced, if boiler SE and/or SF are less than lower limit, Shutdown maintenance as early as possible is needed, improves and is put into operation as early as possible again after its SE and/or SF.
Preferably, by the way that one the most entirety of the boiler of many paired runnings is considered into ton steam consumption fuel quantity SFALLGreatly It is small.Boiler gross ton steam consumption fuel quantity SFALLIt is defined as the steam gross mass S of all boiler a period of time generationsGross mass allDivided by The fuel gross mass F of input in all this times of boilerGross mass all, obtain the index of gross ton steam consumption fuel quantity.That is SFALL= SGross mass all/FGross mass all
Boiler gross ton steam consumption fuel quantity parameter can dynamically update, and always accumulate for the previous period, the number of preferably 5 minutes Shown according to as result of calculation, it is possible to draw out trend curve.
Preferably, the SF by monitoring boiler in real timeALLParameter, it can be deduced that SFALLThe ginseng of every boiler during maximum Number, subsidiary engine power consumption, fuel input quality, steam input quality, the air-introduced machine frequency of such as including but not limited to every boiler At least one of parameters such as rate, air-supply unit frequency, circulation pump frequency.So as to which the boiler of parallel connection can be caused in the process of running Run under the above parameters so that SFALLMaximum is reached, so as to reach the purpose of saving fund.
Preferably, above-mentioned parameter is all the mean parameter in a period of time.
Preferably, by the way that one the most entirety of the boiler of many paired runnings is considered into ton steam consumption electricity SEALLSize. Boiler gross ton steam consumption electricity SEALLIt is defined as the steam gross mass S of all boiler a period of time generationsGross mass allDivided by all pots All subsidiary engine power consumption E of input in this time of stoveGross mass all, obtain the index of gross ton steam consumption fuel quantity.That is SEALL= SGross mass all/ETotal electricity all
Boiler SEALLParameter can dynamically update, and always accumulate for the previous period, and the data of preferably 5 minutes are used as calculating As a result show, it is possible to draw out trend curve.
Preferably, the SE by monitoring boiler in real timeALLParameter, it can be deduced that SEALLThe ginseng of every boiler during maximum Number, subsidiary engine power consumption, fuel input quality, steam input quality, the air-introduced machine frequency of such as including but not limited to every boiler At least one of parameters such as rate, air-supply unit frequency, circulation pump frequency.So as to which the boiler of parallel connection can be caused in the process of running Run under the above parameters so that SEALLMaximum is reached, so as to reach the purpose of saving fund.
Preferably, above-mentioned parameter is all the mean parameter in a period of time.
Preferably, ton steam consumption fuel quantity can be considered together with ton steam consumption electricity.During by a certain section of boiler Between run spent subsidiary engine power consumption and the fuel of input is converted to price respectively, and the price of both is added, obtained Total price, the steam total amount divided by above-mentioned total price then produced with this period of time obtains the index that ton vapour is worth SEF. That is SEF=SGross mass/(FGross mass*FUnit price+EPower consumption*EUnit price), wherein FUnit price、EUnit priceIt is price, the per unit electricity of per unit fuel respectively Price.Preferably, the unit of fuel can be volume or mass unit, electric unit 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 value is too small, show that boiler efficiency is low, it is necessary to carry out examination and maintenance.It is preferred that, it is less than Lower limit, CSRC diagnostic system 20 sends alarm.Whether prompting needs examination and maintenance.
Boiler ton vapour value parameter can dynamically update, and always accumulate for the previous period, the data conduct of preferably 5 minutes Result of calculation is shown, it is possible to draw out trend curve.
Preferably, the ton vapour value parameter by monitoring boiler in real time, it can be deduced that the ginseng of boiler during SEF maximums Number, for example including but not limited to subsidiary engine power consumption, fuel input quality, steam input quality, air inducing unit frequency, pressure fan frequency At least one of parameters such as rate, circulation pump frequency.So as to boiler be caused to run under the above parameters in the process of running, So that SEF reaches maximum, so as to reach the purpose of saving fund.
Preferably, above-mentioned parameter is all the mean parameter in a period of time.
Preferably, the steam consumption value parameter by monitoring parallel boiler in real time, is realized to the boiler of paired running To mark analysis, SEF highests boiler is set to be in peak load state all the time, boiler low SEF is pinpointed the problems and solved as early as possible in time Certainly, the boiler of operation is made to keep efficient all the time.
Preferably, by analyzing the steam consumption value parameter index to marking every boiler, the higher pots of SEF are judged in analysis Stove, increases its operating load;And for boiler relatively low SEF, its operating load is reduced, if boiler SEF is less than normal Operating experience data, then need shutdown maintenance as early as possible, improves and is put into operation as early as possible again after its thermal efficiency.
Preferably, it is of course also possible to Manual analysis judges the higher boilers of SEF, increasing its operating load;And for Boiler relatively low SEF, reduces its operating load, if boiler SEF is less than lower limit, needs shutdown maintenance as early as possible, carries Put into operation as early as possible again after its high thermal efficiency.
Preferably, by the way that one the most entirety of the boiler of many paired runnings is considered into gross ton vapour is worth SEFALLSize. The total amount of fuel that all boiler a period of times will be run spent subsidiary engine power consumption total amount and input is converted to price respectively, And be added the price of both, total price is obtained, this period of time all boiler is then produced into steam gross mass SGross mass ALL Divided by above-mentioned total price, obtain a ton vapour value SEFALLIndex.That is SEFALL=SGross mass ALL/(FGross mass all*FUnit price+EPower consumption all* EUnit price),FGross mass all、EPower consumption allRepresent that the total fuel quantity and subsidiary engine of all boiler inputs expend total electricity respectively.
Boiler gross ton vapour value parameter can dynamically update, and always accumulate for the previous period, and the data of preferably 5 minutes are made Shown for result of calculation, it is possible to draw out trend curve.
Preferably, the gross ton vapour value parameter by monitoring boiler in real time, it can be deduced that SEFALLEvery pot during maximum The parameter of stove, the subsidiary engine power consumption of such as including but not limited to every boiler, fuel input quality, steam input quality, draws At least one of parameters such as blower fan frequency, air-supply unit frequency, circulation pump frequency.So as to which parallel connection can be caused in the process of running Boiler run under the above parameters so that SEFALLMaximum is reached, so as to reach the purpose of saving fund.
Preferably, above-mentioned parameter is all the mean parameter in a period of time.
Preferably, described vapor-water heat exchanger and waste heat utilization heat exchanger are plate type heat exchanger.Plate type heat exchanger is used Following structure:
The plate type heat exchanger includes heat exchange plate 10, gasket seal 13, and gasket seal 13 is located at adjacent heat exchange plate Between 10, the gasket seal 13 is arranged in the sealed groove 28 on the periphery of heat exchange plate 10, and the sealed groove 28 is trapezoidal Structure, the both sides up and down of the trapezium structure are parallel side, and top is short side, is below long side, the trapezium structure it is flat The short side position on two capable sides sets opening 31, and the gasket seal 13 is the trapezium structure worked in coordination with sealed groove, The gasket seal 13 is put at opening 31 in sealed groove 28.
By setting the sealed groove and corresponding gasket seal of trapezium structure, sealed groove can be caused and close Gasket being entrenched togather tightly, it is to avoid use adhesive, add sealed fastness.
Preferably, described trapezium structure is isosceles trapezoidal structure.
Preferably, the sealed groove 28 sets projection 29 in the inside on the side of left and right two, correspond to therewith, in sealing gasket The outside of the side of left and right two of the trapezium structure of piece 13 is set and raised 29 corresponding recesses.Pass through said structure so that sealing It is more firm that groove and gasket seal are fitted together to, and sealing effectiveness is more preferable.
Preferably, the inside on side of the sealed groove 28 in bottom sets projection 30, correspond to therewith, in gasket seal The outside of the side of the bottom of 13 trapezium structure is set and raised 30 corresponding recesses.Pass through said structure so that sealed groove With gasket seal be fitted together to more firmly, sealing effectiveness is more preferable.
Preferably, projection 29 is triangle, projection 30 is rectangle.
Preferably, described raised 29 set multiple respectively on every one side, preferably 3-5 are used as.
Preferably, the lower edge of triangular hill 29 is parallel with the side of trapezoidal bottom.By in this way, can make Gasket seal 13 must be installed to be more prone to, it is easy for installation.
Preferably, trapezoidal left and right two while and it is long while (side of bottom) angle be 40-70 °, preferably 50- 60°.Length between trapezoidal height and short side is 1:(2-4), preferably 1:3.Such angle and length, a side are set Face will consider chimeric fastness, on the one hand consider the convenience installed.Angle is smaller, and height is higher, then installs more difficult, But chimeric fastness is good, good sealing effect.Conversely, angle is bigger, height is lower, then it is easier to install, but chimeric firm Property is poor, and sealing effectiveness is poor.Above-mentioned angle and height is to consider to install that convenience and chimeric fastness carry out considers The optimal effect arrived.
Generally, the cross-sectional area of plate-type heat exchanger slab both sides cold and hot fluid passage is equal.In such a feelings Under condition, if the flow (referring to volume flow) of two kinds of fluids is more or less the same, now the runner of same fluid can be taken mutually The mode of parallel connection, now the coefficient of heat transfer of the side liquid of plate type heat exchanger two be more or less the same, the whole heat exchanger coefficient of heat transfer is very Height, and so set it is also possible that the import and export of two kinds of fluids are conducive to tearing open for plate type heat exchanger all on an end plate 5 Solution maintenance and plate cleaning.But if two kinds of flows differ larger fluids when being exchanged heat, if two kinds of fluids are all taken Fluid passage in parallel, then occur it is too low compared with the flow velocity of low discharge, so as to cause the lower coefficient of heat transfer.Therefore generally will be low Flow material passage is arranged to the form of series connection, thus four import and export of cold fluid and hot fluid can not be provided entirely in into an end On plate, it can only be arranged on two end plates 5,6, fluid inlet and outlet connectors are all set on two end plates, at heat exchanger is with pipeline When connection status, plate type heat exchanger will dismantle difficult, it is necessary to which two ends dismounting, causes maintenance inconvenience.
The plate type heat exchanger of the present invention takes following structure, to adapt to vapour-liquid heat exchange.
Preferably, setting at least one by-passing parts in the small heat exchange plate 10 of the flow, the by-passing parts will The flow path for flowing through the heat exchanging fluid of heat exchange plate is divided into dividing at least two points of Cheng Liudao 7, described heat exchange plate 10 Cheng Liudao 7 is cascaded structure.Pass through above-mentioned point Cheng Liudao 7 cascaded structure so that fluid is therefore by all point journey stream Road 7, as shown in fig. 6, so that heat exchanging fluid forms S-shaped runner on heat exchange plate 10.
By setting by-passing parts so that the small fluid of flow can be full of whole heat exchange plate, so as to avoid appearance The heat exchange area of some fluid shorts, so as to add the coefficient of heat transfer, improves the coefficient of heat transfer of whole heat exchanger;In addition, logical Cross setting by-passing parts so that the fluid of low discharge can also realize the parallel connection of the fluid passage in multiple plates, it is to avoid For the structure for improving the coefficient of heat transfer and being set to connect by small fluid passage, so that four import and export 1- of fluid 4 are all disposed within same end plate, so that easy to maintenance.
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, preferably, the plate of water source side sets by-passing parts.
Preferably, by-passing parts are to realize that the seal groove 8 is arranged on heat exchanger plates by seal groove 8 and sealing gasket 9 On piece, by the way that sealing gasket 9 is inserted into seal groove 8, so as to form by-passing parts.
Preferably, by-passing parts are realized by directly setting sealing strip on heat exchange plate.Preferably, close Strip of paper used for sealing and heat exchange plate integration manufacture.
On the fluid inlet of heat exchange plate and the upper and lower ends of outlet, i.e. Fig. 3 upper and lower ends, by-passing parts are at one end It is closing, is that opening is set in the other end, wherein along left and right directions, aperture position is to be disposed alternately at upper and lower ends, So ensure that fluid passage forms S-shaped.
It is upper bottom left that before note that and direction up and down mentioned later, which is not limited in use state, Right direction, herein just for the sake of the structure of the plate in statement Fig. 8.
Fig. 8, the plate described in 11 because be provided with two by-passing parts, therefore fluid import and export be arranged on upper end and under End.1 or odd number by-passing parts can certainly be set, and the import and export position of fluid now is located on same one end, I.e. simultaneously positioned at upper end or lower end.
Foregoing S-shaped runner can be half of S-shaped, for example only set by-passing parts situation or Whole S-shaped, such as Fig. 8,11 form or multiple S-shapeds and/or half of S-shaped combination for example sets and is more than 2 The situation of individual by-passing parts, such as 3 by-passing parts are exactly the combination of 1 one S-shapeds and half of S-shaped, and 4 by-passing parts are exactly 2 Individual S-shaped, etc. is by that analogy.
For the form using sealing gasket, preferably, setting between sealing gasket and heat exchange plate for plate heat exchanger piece Pad integrated design, therefore present invention provides the pad used in plate type heat exchanger in one between heat exchange plate.Institute State and at least one flow seal pad 9 is set in pad, the flow seal pad 9 will flow through the flowing of the heat exchanging fluid of heat exchange plate Point Cheng Liudao 7 that path is divided at least two points of Cheng Liudao 7, 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 and it was found that, by setting by-passing parts, the increase of the heat exchanger coefficient of heat transfer is enabled to, but It is while also bringing the increase of flow resistance.Found by numerical simulation and experiment, for the width of flow manifold, if mistake It is small, flow resistance can be caused excessive, the pressure-bearing of heat exchanger is too big, and there may be the side boundary layer of runner two along flow of fluid Direction is overlapped, and causes the coefficient of heat transfer to decline, the excessive coefficient of heat transfer for also resulting in reduction plate type heat exchanger of width of flow path, therefore There is a suitable numerical value for split channel 7;Also there is certain requirement for the length of by-passing parts opening, if opening Too small, the quantity that fluid can be caused to be flowed through by opening is too small, reduces the coefficient of heat transfer while pressure is increased, similarly, such as Really excessive, then fluid can produce short-circuited region, not have corresponding heat transfer effect, therefore also have one suitable long for opening Degree.Therefore the chi of an optimization is met between the Opening length of by-passing parts, the length of by-passing parts, flow manifold width Very little relation.
Therefore, the present invention is the thousands of numerical simulations and test data by multiple various sizes of heat exchangers, Meet in the case of industrial requirements pressure-bearing (below 2.5MPa), in the case where realizing maximum heat exchange amount, what is summed up optimal changes The dimensionally-optimised relation of hot plate piece.
As shown in fig. 7, the Opening length L1 of by-passing parts, the length of by-passing parts is L2, flow manifold width W, then expires 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 that, along by-passing parts, the position edge occurred from opening reaches the farthest position of fluid passage Put, the A points in such as Fig. 7.
Preferably, a=0.19, b=0.015, c=0.0037;
Preferably, being continuously increased with L1/W, a numerical value is constantly reduced;
Preferably, being continuously increased with L1/W, b, c numerical value is continuously increased.
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, under this flow velocity The heat transfer effect for taking above-mentioned formula to obtain is best.
It is preferred that, plate the spacing 4-6mm, preferably 5mm of heat exchanging plate of heat exchanger.
For the form integrated with pad of the use sealing gasket in Fig. 9, also meet in the case of above-mentioned formula, heat exchange is imitated It is really optimal.
Preferably, multiple by-passing parts are parallel to each other.
Preferably, along the direction (more remote i.e. apart from the fluid intake of heat exchange plate) of flow of fluid, same heat exchanger plates The width W of different flow manifolds is constantly reduced on piece.For example, 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 being reduced by flow manifold width W can cause fluid continuous Acceleration, it is to avoid because fluid operation is slow caused by being short of power.
Preferably, along the direction of flow of fluid, the width W of same flow manifold is constantly reduced.For example, shunting stream In road 7, along fluid flow direction (i.e. Fig. 8 is from top to bottom), width W is constantly reduced.Now, for the W in preceding formula Use mean breadth W.
Preferably, on various heat exchange plate, more remote apart from heat exchanger fluid entrance, flow manifold width is smaller.Mainly It is more remote apart from entrance, then distribution fluid is fewer, the change for passing through width of flow path causes fluid to ensure certain flow velocity.
Preferably, heat exchange plate sets ripple, the height of ripple is different.On same plate, along the flowing road of fluid Wave height in footpath, 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.
Preferably, flow manifold is more remote apart from heat exchange plate fluid intake distance, the ripple in different flow manifolds Height is higher, for example, the wave height in the flow manifold 7 in Fig. 8 is less than flow manifold 11, the wave height of flow manifold 11 Less than flow manifold 12.
Preferably, on various heat exchange plate, more remote apart from heat exchanger fluid entrance, wave height is higher.Mainly away from More remote from entrance, then distribution fluid is fewer, and the change for passing through wave height causes fluid to ensure certain flow velocity.
Preferably, heat exchange plate sets ripple, the density of ripple is different.On same plate, along the flowing road of fluid Corrugation density in footpath, 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.
Preferably, flow manifold is more remote apart from heat exchange plate fluid intake distance, the ripple in different flow manifolds Density becomes big.For example, 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
Preferably, on various heat exchange plate, more remote apart from heat exchanger fluid entrance, corrugation density is bigger.Mainly away from More remote from entrance, then distribution fluid is fewer, and the change for passing through wave height causes fluid to ensure certain flow velocity.
Preferably, wave height noted earlier and/or the increased amplitude of density are less and less.
Preferably, the gasket seal between sealing gasket 9 and/or heat exchange plate uses elastomeric material.The elastomeric material It is prepared from the following raw materials in parts by weight:7-9 parts of ethylene propylene diene rubber, 3-6 parts of butadiene-styrene rubber, 6-8 parts of zinc oxide, white carbon 13- 15 parts, 4-5 parts of accelerator, 2-8 parts of foaming agent, 5-6 parts of naphthenic oil, 20 parts of titanium dioxide, 50-55 parts of natural rubber, Rhein dissipates 10- 13 parts, 15-17 parts of silicon rubber, 2 parts of carborundum, 2 parts of Melamine, 0.6 part to 1.5 parts of age resistor, 4 parts to 6 parts of softening agent, sulphur 2.2 parts to 4 parts of agent.
Preferably, 8 parts of ethylene propylene diene rubber, 5 parts of butadiene-styrene rubber, 7 parts of zinc oxide, 14 parts of white carbon, 4 parts of accelerator, hair 4 parts of infusion, 6 parts of naphthenic oil, 20 parts of titanium dioxide, 52 parts of natural rubber, Rhein dissipates 12 parts, 16 parts of silicon rubber, 2 parts of carborundum, three 2 parts of polynitriles amine, 0.9 part of age resistor, 5 parts of softening agent, 3 parts of vulcanizing agent.
Manufacture method comprises the following steps:
A. the ethylene propylene diene rubber, butadiene-styrene rubber, zinc oxide, white carbon, accelerator, foaming are sequentially added in banbury Agent, naphthenic oil, titanium dioxide, natural rubber, scattered Rhein, silicon rubber, carborundum, Melamine and accelerator and age resistor, so Start banbury afterwards and carry out first time mixing, 70 seconds to 75 seconds time, temperature is 60 DEG C to 70 DEG C;
B. softening agent is added in the banbury of step A and carries out second of mixing, 75 seconds time, temperature is less than 105 DEG C, so After cool down dumping;
C. vulcanize:The glue of step B is discharged on tablet press machine and adds vulcanizing agent and is turned refining, time 125-140 second, under Piece is produced.
Preferably, accelerator is diphenylguanidine.
Preferably, the accelerator is dithiocar-bamate;The age resistor is Tissuemat E;The softening agent For paraffin;The vulcanizing agent is curing resin.
The rubber has the following advantages that:1) by adding the material compounding of zinc oxide, titanium dioxide, resulting materials elasticity It is good, and with certain hardness, wear-resisting durable, long lifespan is not easy to wear.2) due to being used as anti-aging using Tissuemat E Agent, can improve the persistence, hardness and abrasion resistance of rubber;3) cure time is short, rubber is handed over by the macromolecular of linear structure Be unified into the macromolecular for space network, the rubber of output its anti-tensile, stretch surely, wear-resisting performance it is good.
Figure 10 illustrates the flow channel of the big fluid of flow, in fact, for the present invention, two kinds of heat exchanging fluids are all The fluid that flow can be used small.For example in the case where heat exchange plate is certain, flow all very littles of two kinds of fluids, now two kinds The flow channel of fluid can take the plate of Fig. 8, Figure 11 form.
Although the present invention is disclosed as above with preferred embodiment, the present invention is not limited to this.Any art technology Personnel, without departing from the spirit and scope of the present invention, can make various changes or modifications, therefore protection scope of the present invention should It is defined when by claim limited range.

Claims (6)

1. a kind of boiler thermodynamic system, including CSRC diagnostic system and multiple boilers in parallel, each boiler respectively with CSRC diagnostic system data cube computation, the fuel delivery means of the CSRC diagnostic system and every boiler carry out data Connection, to obtain the fuel input of every boiler in time;The CSRC diagnostic system uses telecommunications with every boiler Breath carries out data cube computation, so as to the power consumption of the subsidiary engine that obtains every boiler in time, and CSRC diagnostic system is according to obtaining Quality of steam, fuel input and the power consumption of every boiler output;
By the way that one the most entirety of the boiler of many paired runnings is considered into gross ton vapour is worth SEFALLSize, will all boilers The total amount of fuel that certain a period of time runs spent subsidiary engine power consumption total amount and input is converted to price respectively, and by both Price is added, and obtains total price, and this period of time all boiler then is produced into steam gross mass SGross mass ALLDivided by it is above-mentioned total Price, obtains a ton vapour value SEFALLIndex.That is SEFALL=SGross mass ALL/(FGross mass all*FUnit price+EPower consumption all*EUnit price), wherein FUnit price、 EUnit priceIt is price, the price of per unit electricity, F of per unit fuel respectivelyGross mass all、EPower consumption allAll boiler inputs are represented respectively Total fuel quantity and subsidiary engine expend total electricity;
By the gross ton vapour value parameter for monitoring boiler in real time, it can be deduced that SEFALLThe parameter of every boiler during maximum, so that The boiler of parallel connection can be caused to run under the above parameters in the process of running so that SEFALLReach maximum;
The ton vapour value is defined as boiler a period of time running spent subsidiary engine power consumption and the total amount of fuel of input Price is converted to respectively, and the price of both is added, and obtains total price, the steam total amount then produced with this period of time Divided by above-mentioned total price, obtain ton an index for vapour value, i.e. SEF=SGross mass/(FGross mass* FUnit price+EPower consumption* EUnit price), wherein FUnit price、EUnit priceIt is price, the price of per unit electricity of per unit fuel respectively, SEF is ton a vapour value, FGross massIt is fuel input, EPower consumptionIt is subsidiary engine power consumption;
CSRC diagnostic system judges the higher boilers of SEF by analyzing the SEF indexs to marking every boiler, analysis, increases Its big operating load;And for boiler relatively low SEF, reduce its operating load;If boiler SEF is less than lower limit, Send alarm.
2. boiler thermodynamic system as claimed in claim 1, the parameter of boiler includes but is not limited to the subsidiary engine consumption of every boiler At least one of electricity, fuel input quality, steam input quality, air inducing unit frequency, air-supply unit frequency, circulation pump frequency.
3. boiler thermodynamic system as claimed in claim 1, boiler gross ton vapour value parameter can dynamically update, 5 are always accumulated The data of minute are shown as result of calculation, it is possible to draw out trend curve.
4. boiler thermodynamic system as claimed in claim 1, including steam turbine, generator, vapor-water heat exchanger, the steaming that boiler is produced Vapour drives generator to be generated electricity by steam turbine, meanwhile, the exhaust steam after generating enters vapor-water heat exchanger, and in vapor-water heat exchanger Low-temperature receiver exchanged heat, the condensed water of exhaust steam circulates back boiler by circulating pump.
5. boiler thermodynamic system as claimed in claim 4, it is characterised in that the vapor-water heat exchanger is plate type heat exchanger.
6. the flow of the heat exchanging fluid of heat exchange is participated in boiler thermodynamic system as claimed in claim 5, the plate type heat exchanger Difference, the plate type heat exchanger includes heat exchange plate, and at least one by-passing parts, institute are set in the small heat exchange plate of flow The flow path for stating the heat exchanging fluid that by-passing parts will flow through heat exchange plate is divided at least two flow manifolds, and by-passing parts are set Opening so that point Cheng Liudao in described heat exchange plate is cascaded structure, so that the small heat exchanging fluid of flow is in heat exchanger plates S-shaped runner is formed on piece;
Heat exchange plate sets ripple, and the height of ripple is different;On same plate, along the flow path of fluid, same shunting Wave height in passage gradually rises.
CN201610417119.8A 2015-07-01 2015-07-01 The therrmodynamic system of integral monitoring is carried out by economic indicator of steam price CN106122921B (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201610417119.8A CN106122921B (en) 2015-07-01 2015-07-01 The therrmodynamic system of integral monitoring is carried out by economic indicator of steam price
CN201510326000.5A CN104896458B (en) 2015-07-01 2015-07-01 The steam generator system automatically controlled is carried out based on steam price

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610417119.8A CN106122921B (en) 2015-07-01 2015-07-01 The therrmodynamic system of integral monitoring is carried out by economic indicator of steam price

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
CN201510326000.5A Division CN104896458B (en) 2015-07-01 2015-07-01 The steam generator system automatically controlled is carried out based on steam price

Publications (2)

Publication Number Publication Date
CN106122921A CN106122921A (en) 2016-11-16
CN106122921B true CN106122921B (en) 2017-09-15

Family

ID=54029288

Family Applications (3)

Application Number Title Priority Date Filing Date
CN201610417119.8A CN106122921B (en) 2015-07-01 2015-07-01 The therrmodynamic system of integral monitoring is carried out by economic indicator of steam price
CN201610417095.6A CN106051720B (en) 2015-07-01 2015-07-01 The therrmodynamic system of integral monitoring is carried out as economic indicator with coal consumption
CN201510326000.5A CN104896458B (en) 2015-07-01 2015-07-01 The steam generator system automatically controlled is carried out based on steam price

Family Applications After (2)

Application Number Title Priority Date Filing Date
CN201610417095.6A CN106051720B (en) 2015-07-01 2015-07-01 The therrmodynamic system of integral monitoring is carried out as economic indicator with coal consumption
CN201510326000.5A CN104896458B (en) 2015-07-01 2015-07-01 The steam generator system automatically controlled is carried out based on steam price

Country Status (1)

Country Link
CN (3) CN106122921B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
CN108006611B (en) * 2017-06-05 2019-02-22 中北大学 A kind of cloud processing steam boiler drainage of adjustment blowing time

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2624160Y (en) * 2003-06-03 2004-07-07 广州市华德工业有限公司 Plate heat exchanger
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

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2624160Y (en) * 2003-06-03 2004-07-07 广州市华德工业有限公司 Plate heat exchanger
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

Also Published As

Publication number Publication date
CN106122921A (en) 2016-11-16
CN106051720B (en) 2017-06-16
CN104896458B (en) 2016-08-24
CN104896458A (en) 2015-09-09
CN106051720A (en) 2016-10-26

Similar Documents

Publication Publication Date Title
US8433450B2 (en) Optimized control of power plants having air cooled condensers
CN102967464B (en) The improved method of evaluating performance of condensing turbine high back pressure
CN100587447C (en) Heat exchanger performance test stand
US10302327B2 (en) Measuring HVAC efficiency
CN102261968B (en) Method and device for predicting node temperature of shell and tube heat exchanger
CN105571343B (en) Air cooling turbo-generator steam turbine operation back pressure Filled function control method and system
EP3521748A1 (en) Dual model approach for boiler section cleanliness calculation
US8452459B2 (en) Heat exchange network heat recovery optimization in a process plant
CN102486261B (en) Comprehensive evaluation method of gas pipeline scheduling scheme
CN101802928A (en) Pressure diagnostic for rotary equipment
CN106931603A (en) Central air conditioning cooling water system energy efficiency monitoring system based on technology of Internet of things
CN105135406A (en) Intelligent measurement and control boiler system dynamically calculating water loss according to drum water level
CN102322354A (en) Be used for system and method at the power equipment pre-heating fuel
CN102095447B (en) Multi-medium combined heat exchanger test bed
CN103604132B (en) Boiler Convection Heating Surface dust stratification on-line monitoring system
CN106918622B (en) Vapor condensation heat-exchange experimental system in a kind of width horizontal tube of the degree of supercooling containing multicomponent gas
CN103940249B (en) Multiuser-oriented automatic measuring and controlling energy-saving kiln waste heat utilization system
CN103672846B (en) Method for monitoring wall temperature of heating surface and thickness of scale cinder of boiler superheater or reheater
CN104791881B (en) Utilize cloud server heat to be used to the co-generation unit of intelligent monitoring
Kramer et al. Pumps as turbines for efficient energy recovery in water supply networks
CN105738120B (en) The heavy combustion engine turbine blade warm cold effect experimental rig of total head entirely
CN204026705U (en) A kind of dry slag cooling air quantity intelligence control system
CN108985544A (en) A kind of heating system Energy Efficiency Analysis output method and device
CN103629958B (en) Waste heat utilization heat exchanger, with different tube bundle intervals of rotary cement kiln
CN101666319A (en) Energy saving method for circulating water system

Legal Events

Date Code Title Description
PB01 Publication
C06 Publication
SE01 Entry into force of request for substantive examination
C10 Entry into substantive examination
GR01 Patent grant
GR01 Patent grant
TR01 Transfer of patent right

Effective date of registration: 20181220

Address after: 401320 Chongqing Banan District Yunan Avenue 239 17-2

Patentee after: Chongqing Heyi Technology Co., Ltd.

Address before: 266100 No. 345-2 Zhongcheng Road, Chengyang District, Qingdao City, Shandong Province

Patentee before: Qingdao Sino science and Technology Development Co., Ltd.

TR01 Transfer of patent right
TR01 Transfer of patent right

Effective date of registration: 20190711

Address after: 222100 Xiangshi Village, Zhewang Town, Ganyu District, Lianyungang City, Jiangsu Province

Patentee after: JIANGSU BINXIN STEEL GROUP CO., LTD.

Address before: 401320 Chongqing Banan District Yunan Avenue 239 17-2

Patentee before: Chongqing Heyi Technology Co., Ltd.

TR01 Transfer of patent right