CN104142161A - Quick debugging method for thermal meter on construction site - Google Patents
Quick debugging method for thermal meter on construction site Download PDFInfo
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- CN104142161A CN104142161A CN201410378651.4A CN201410378651A CN104142161A CN 104142161 A CN104142161 A CN 104142161A CN 201410378651 A CN201410378651 A CN 201410378651A CN 104142161 A CN104142161 A CN 104142161A
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Abstract
The invention discloses a quick debugging method for a thermal meter on a construction site. The method comprises the step of making preparation before debugging of the thermal meter on the construction site, wherein the preparation work includes drawing joint trial, construction debugging technical disclosure introduction and preparation of tools, machines, standard instruments and other devices. By means of the method, macrocontrol over debugging operation of the thermal meter can be achieved, production quality is guaranteed, and the production efficiency is improved; the quick debugging method is easy to learn and use, and especially instrument debugging personnel who join the industry newly can learn debugging according to the method without a teacher, so expensive training expenses are saved, and the production cost is reduced.
Description
Technical field
The present invention relates to instrument debugging in industrial circle, relate in particular to a kind of for working-yard thermal meter method for rapidly debugging.
Background technology
Thermal meter engineering is the system that electromechanical equipment operation conditions and pipeline internal medium are dynamically monitored, measure, regulated.Because the debugging work of dynamic situation working-yard thermal meter becomes complexity very, to commissioning staff's requirement also harshness very.Workload is big, the length of working time, the scope of one's knowledge of needing to be grasped are wide, is all unforeseen in field adjustable engineering.From technology be installed to technological process, from entry test to system debug until trial run go into operation, debugging work all like the shadow following the person through whole project all the time, in whole thermal meter engineering construction process, it is the key of holding gate of the quality monitoring.How carrying out fast working-yard thermal meter debugging is that those skilled in the art are badly in need of the technical matters solving.
Summary of the invention
For having problems in prior art, the invention provides one for working-yard thermal meter method for rapidly debugging, the method can realize the macro-control to thermal meter debugging work, ensures the quality of production, enhances productivity; And the method is easy to learn and use, the instrument commissioning staff who particularly just enters a profession is according to the invention provides method, self-taught, has saved high training expenses, reduces production costs.
In order to solve prior art existing problems, the present invention adopts following technical scheme to carry out:
A kind of for working-yard thermal meter method for rapidly debugging, this adjustment method comprises the steps step:
Step 1: working-yard thermal meter is carried out to the preliminary work before debugging, comprising: drawing joint examination, to the explanation of telling somebody what one's real intentions are of construction debugging technique, the equipment such as work facility and standard meter are on deck;
Step 2: working-yard thermal meter equipment, to unpacking after manufacturer, comprising: whether instrument visual examination, metered quantity, model specification and annex thereof, spare part meet designing requirement;
Step 3: the debugging of working-yard thermal meter monomer, that is, the setting of zero point, range, unit and other inner parameters to instrument checks and verification;
Step 4: after working-yard thermal meter installs, need to check getting source position and whether correctly installing of thermal meter;
Step 5: after the thermal meter cable laying of working-yard, need to carry out school, thermal meter loop ray examination, comprise: whether cable model and specification meet designing requirement, whether cable laying and wiring be correct;
Step 6: working-yard thermal meter carries out complex control system inspection;
Step 7: working-yard thermal meter loop-around test, whether test simulation amount input and output loop is selected correct to the connection of cabinet inner module line, module type selecting, program composition and legend, and whether precision, range, unit etc. meet designing requirement; Whether the chain program of test digital quantity input circuit is correct, and whether setting value meets designing requirement;
Step 8: working-yard thermal meter cool tone, returns to zero again to thermal meter;
Step 9: working-yard thermal meter system debug, in the pipeline that field instrument is installed, be full of after medium, need debug whether meet designing requirement and technological requirement to each part, region;
Step 10: whether working-yard thermal meter system trial run, meet technique and code requirement by the test design of system dynamic course system;
Step 11: working-yard thermal meter acceptance(check) is also transferred manufacturer.
In described step 3, the calibration point of instrument monomer verification should be chosen uniformly in gamut, and generally choosing at 5 is 0,25%, 50%, 75%, 100%.
In described step 5, the school line of on-the-spot thermal meter cable laying, undertaken by two commissioning staffs, one people is people instrument installation place at the scene after instrument cabinet, general instrument circuit is two-wire system, color be the red positive indigo plant of reddish blue negative be usual connection, as the given and feedback of the output signal of transmitter, electromagnetic flowmeter, variable valve etc.; The cable laying of thermopair should be laid corresponding cable according to the difference of its calibration number, and general connection is also that red positive indigo plant is negative; Thermal resistance is generally concentric line of three-wire system, and another two connect arbitrarily.
In described step 6, analog quantity loop-around test is that 4～20mA analog signals of 4～20mA analog signals that Standard General is sent and automatic control program output is by thermal meter laying-out input cabinet inner module or output to field instrument end by module, and it is noiseless tentatively to confirm that cable is laid with, cabinet inner terminal should meet designing requirement to the setting of the selecting of module circuit, module, automated procedures, legend and parameter; Digital quantity loop-around test is the analogue instrument equipment switching value signal of exporting while reaching chain setting value that is in operation, two connecting lines at instrumentation connection terminal place can be disconnected to one arbitrarily if can make war to move according to designing requirement, can be at the connection terminal place of instrumentation bonding line short circuit if must put action.
Beneficial effect fruit of the present invention is: the first, and the debugging work that the present invention is working-yard thermal meter provides a set of practicable method, can improve the efficiency of debugging work, improves construction quality, the reduction of erection time, cost-saving.The second, the present invention can improve debugging speed and the accuracy of thermal meter effectively, guarantees the construction quality of whole thermal meter construction, and systematic generalization has been summed up the debugging step of working-yard thermal meter.The 3rd, commissioning staff's specific works program that the present invention is clear and definite, the action of each step reasonable the complying with of all having regulations to abide by, completing of each work is all laying the groundwork for follow-up work, especially for the practitioner who just enters a profession, accomplish to shoot the arrow at the target, be easy to learn and use, save high training expenses.
Brief description of the drawings
Fig. 1 is process flow chart of the present invention;
Embodiment:
Be described in further detail for working-yard thermal meter method for rapidly debugging the present invention is a kind of below in conjunction with accompanying drawing.
As shown in Figure 1, a kind of for working-yard thermal meter method for rapidly debugging, this adjustment method comprises the steps step:
Step 1 101: working-yard thermal meter is carried out to the preliminary work before debugging, comprising: drawing joint examination, to the explanation of telling somebody what one's real intentions are of construction debugging technique, the equipment such as work facility and standard meter are on deck; The preliminary work of constructing before debugging, carries out drawing joint examination, instrument drawing can be compared according to technological requirement, code requirement and similar construction drawing experience, can find out result for meeting above-mentioned 3 requirements.Selecting of work facility and standard meter should be determined according to the needs of follow-up work.Be ready to debug work facility and standard meter required in whole hot blast stove system work.Accepted standard instrument model of the present invention is that DPI620, handheld terminal (generally with the equipment carry) model consistent with instruments protocol are BT200.Check criteria instrument should be within the phase of being up to the standards through metrological service calibrating, and its precision is higher than the precision of tested thermal meter.Its feature is: the high precision of 0.005%FS; Win CE system Orion; USB principal and subordinate interface is supported computer and peripherals; Pressure measuring module is from 2.5KPa-100MPa; Interchangeable digital pressure module plug and play.
Step 2 102: working-yard thermal meter equipment is checked to factory, comprising: instrument visual examination, metered quantity, model specification and annex thereof, spare part meet designing requirement; While unpacking, make a record.
Step 3 103: the debugging of working-yard thermal meter monomer, that is, the setting of zero point, range, unit and other inner parameters to instrument checks and verification; Checking procedure should have notes, puts test data sheet after experiment in order.
Monomer verification needs standard meter, handheld terminal, testing table, and word small screw driver one handle, two of shifting wrenches, the some volumes of band, paper notes are employed etc.Carry out monomer verification front application handheld terminal or the guidance panel carrying and confirm that the inner setting parameter of instrument should meet designing requirement.The vertical selected transmitter of blast-furnace hot-air furnace system of it steel 1080 all carries guidance panel, only need be connected with the corresponding terminal of transmitter by the jack with 24V feed with the input 4～20mA of multifunctional check, makes transmitter energising.Determine its inner parameter setting and zero adjusting, the option that tune is full by guidance panel again according to product technology file.Valve, similar the repeating no more of electromagnetic flowmeter parameter inspection method.
In the present invention, the important technological parameters of day steel 1080 vertical blast-furnace hot-air furnace systems is 0～1400 DEG C of air heating furnace roof temperature, 700～1500 DEG C of chamber temperatures, 450 DEG C of flue gas arm temperature, 200 DEG C of stove skin temperature, 80 DEG C of main drain temperature, furnace pressure 0.5～1KPa, blast furnace gas main pipe pressure 10KPa, the total pipe pressure 12KPa of combustion air, nitrogen header pipe pressure 1.0MPa, water main pressure 0.6MPa, combustion air, branch gas tube flow 1.4KPa, cold wind house steward flow 12.9KPa, nitrogen flow 20KPa, water main flow 500m
3/ h, combustion air and blast furnace gas arm flow regulation valve opening 0～100%.
The calibration point of instrument monomer verification should be chosen uniformly in gamut, and generally choosing at 5 is 0,25%, 50%, 75%, 100%.Note tackling before verification confirming zero point, if first zero point drift should return to zero.To the test method of doing according to the difference of meter type also difference to some extent, the meter type of hot blast stove system monomer verification comprises: the verification of temperature checking, pressure checking, electromagnetic flowmeter verification, flow control valve, the verification of air door electric operator etc.Temperature checking also comprises the verification of thermopair and thermal resistance.Here above-mentioned checking procedure is not described in detail at experiment lab simulation field condition above-mentioned parameter is carried out to corresponding verification.
Arrangement provide test data sheet after the verification of instrument monomer completes.In test data sheet, should record in detail debugger object, tuning parameter, check results, test figure and verification conclusion, the part information of checking and accepting as instrument deposits technology files in.
Step 4 104: after working-yard thermal meter installs, commissioning staff need according to construction drawing and technological requirement to thermal meter get source position and installation checks.Determine installation pipeline and the position of getting source block according to the construction drawing of heat generator and on-the-spot actual line arrangement; Determine the concrete installation situation of getting source block and instrumentation pipeline according to instrument installation specification and product technology file.Thermometric instrument mainly checks insertion depth; Pressure and differential pressure transmitter mainly check high and low pressure connection; Electromagnetic flowmeter note MEDIA FLOW to arrow direction indication; Level meter checks that whether true altitude is consistent with design height; Whether electric operator is connected firm etc. with air door mechanical linkage.
Step 5 105: after the thermal meter cable laying of working-yard, need to carry out school, thermal meter loop ray examination, comprise: whether cable model and specification meet designing requirement, whether cable laying and wiring be correct.The school line of on-the-spot thermal meter cable laying, undertaken by two commissioning staffs, one people is people instrument installation place at the scene after instrument cabinet, general instrument circuit is two-wire system, color be the red positive indigo plant of reddish blue negative be usual connection, as the given and feedback of the output signal of transmitter, electromagnetic flowmeter, variable valve etc.; The cable laying of thermopair should be laid corresponding cable according to the difference of its calibration number, and general connection is also that red positive indigo plant is negative; Thermal resistance is generally concentric line of three-wire system, and another two connect arbitrarily.Need be a pair of with intercom when school line, one of digimer, straight screwdriver one is a bit of, shorting stub.While checking wiring, should be specifically noted that: the personnel that check cabinet interior lines connection, must first understand the design of drawing and the corresponding relation of cabinet interior lines, check the personnel of field wiring, connection terminal that must corresponding device is understood product technology file mode of connection (this can study thoroughly in the time that monomer is debugged), not allowing to make mistakes otherwise checking to lose meaning, and this just requires commissioning staff to keep clearheaded the moment.
Step 6 106: before complex control system test, in reply cabinet, circuit checks.Especially, power-supply system is checked.General power-supply system is all furnished with at least one UPS, and ups power draws from low-voltage distribution chamber AC220V.The power supply of complex control system is by UPS supply chamber electricity under normal circumstances, and when power-off suddenly, UPS supplies with battery supply.The test of complex control system is mainly power-supply system, check whether UPS works, to guarantee that complex control system still can keep stable work after the electric tripping of unexpected chamber, the time of leaving reaction and processing to operative employee, avoid hot blast stove system to occur industrial accident.Power check is complete checks to the energisings such as modules, blower fan, socket, for next step loop-around test ready.
Step 7 107: working-yard thermal meter loop-around test, whether test simulation amount input and output loop is selected correct to the connection of cabinet inner module line, module type selecting, program composition and legend, and whether precision, range, unit etc. meet designing requirement; Whether the chain program of test digital quantity input circuit is correct, and whether setting value meets designing requirement; Analog quantity loop-around test is that 4～20mA analog signals of 4～20mA analog signals that Standard General is sent and automatic control program output is by thermal meter laying-out input cabinet inner module or output to field instrument end by module, and it is noiseless tentatively to confirm that cable is laid with, cabinet inner terminal should meet designing requirement to the setting of the selecting of module circuit, module, automated procedures, legend and parameter; Digital quantity loop-around test is the analogue instrument equipment switching value signal of exporting while reaching chain setting value that is in operation, two connecting lines at instrumentation connection terminal place can be disconnected to one arbitrarily if can make war to move according to designing requirement, can be at the connection terminal place of instrumentation bonding line short circuit if must put action.
Step 8 108: working-yard thermal meter cool tone, returns to zero again to thermal meter; If instrument self can directly return to zero with balancing controls, if do not have or the too large available handheld terminal identical with the instrument communications protocol zeroing of zero point drift.
Step 9 109: working-yard thermal meter system debug, in the pipeline that field instrument is installed, be full of after medium, need debug whether meet designing requirement and technological requirement to each part, region; When system debug easily there is the phenomenons such as " race ", " emitting ", " leakage " in instrumentation and pipeline junction, needs with two of shifting wrenches, band some etc.
Step 10 110: whether working-yard thermal meter system trial run, meet technique and code requirement by the test design of system dynamic course system.The complete instrument energising of loop-around test operation, can check that have or not drift the zero point of instrument, needs by above-mentioned adjusting zero method processing if having.
Step 10 111: working-yard thermal meter acceptance(check) is also transferred manufacturer.The measured pipeline of instrument is full of after medium and flow speed stability, instrument can be come into operation.After as stable in water velocity in heat generator cooling water system, the valve of the pressure point position of water main pressure can be opened, and the force value of designing requirement operating parameter is 0.6MPa, must not be lower than this force value in the time of examination water.Water main flow must not be lower than 500m
3/ h.Heat generator combustion-aid air system, blast furnace gas system, quenching system, nitrogen system etc., the operational factor of each system must meet design and technological requirement.
Implementation result: adopt the present invention to debug working-yard thermal meter and can pinpoint the problems in time and process in time, reasonable arrangement program, can increase work efficiency, shorten the work period, specify focus, improve construction quality, promote project progress, the result of having guaranteed debugging meets design requirement, and design meets technique and code requirement.Utilize that adjustment method of the present invention is workable, effect is remarkable.
Comprehensive above-described embodiment can be found out, the present invention is applicable to the debugging work of all kinds of working-yards thermal meter, as thermal meter debugging of the thermal meter debugging of the thermal meter debugging in the thermal meter debugging of the thermal meter debugging of blast furnace system, converter system, coke oven and change producing region, boiler, steam turbine etc.Although by reference to the accompanying drawings the present invention has been carried out to foregoing description; but the present invention is not limited to above-mentioned embodiment; above-mentioned embodiment is only schematic; instead of restrictive; those of ordinary skill in the art is under enlightenment of the present invention; in the situation that not departing from aim of the present invention and claim institute protection domain, can also make a lot of distortion, these all belong to the row of protection of the present invention.
Claims (4)
1. for a working-yard thermal meter method for rapidly debugging, it is characterized in that: this adjustment method comprises the steps step:
Step 1: working-yard thermal meter is carried out to the preliminary work before debugging, comprising: drawing joint examination, to the explanation of telling somebody what one's real intentions are of construction debugging technique, the equipment such as work facility and standard meter are on deck;
Step 2: working-yard thermal meter equipment, to unpacking after manufacturer, comprising: whether instrument visual examination, metered quantity, model specification and annex thereof, spare part meet designing requirement;
Step 3: the debugging of working-yard thermal meter monomer, that is, the setting of zero point, range, unit and other inner parameters to instrument checks and verification;
Step 4: after working-yard thermal meter installs, need to check getting source position and whether correctly installing of thermal meter;
Step 5: after the thermal meter cable laying of working-yard, need to carry out school, thermal meter loop ray examination, comprise: whether cable model and specification meet designing requirement, whether cable laying and wiring be correct;
Step 6: working-yard thermal meter carries out complex control system inspection;
Step 7: working-yard thermal meter loop-around test, whether test simulation amount input and output loop is selected correct to the connection of cabinet inner module line, module type selecting, program composition and legend, and whether precision, range, unit etc. meet designing requirement; Whether the chain program of test digital quantity input circuit is correct, and whether setting value meets designing requirement;
Step 8: working-yard thermal meter cool tone, returns to zero again to thermal meter;
Step 9: working-yard thermal meter system debug, in the pipeline that field instrument is installed, be full of after medium, need debug whether meet designing requirement and technological requirement to each part, region;
Step 10: whether working-yard thermal meter system trial run, meet technique and code requirement by the test design of system dynamic course system;
Step 11: working-yard thermal meter acceptance(check) is also transferred manufacturer.
2. a kind of working-yard thermal meter method for rapidly debugging according to claim 1, it is characterized in that: in described step 3, the calibration point of instrument monomer verification should be chosen uniformly in gamut, and generally choosing at 5 is 0,25%, 50%, 75%, 100%.
3. a kind of for working-yard thermal meter method for rapidly debugging according to claim 1, it is characterized in that: in described step 5, the school line of on-the-spot thermal meter cable laying, undertaken by two commissioning staffs, one people is people instrument installation place at the scene after instrument cabinet, general instrument circuit is two-wire system, color be the red positive indigo plant of reddish blue negative be usual connection, as the given and feedback of the output signal of transmitter, electromagnetic flowmeter, variable valve etc.; The cable laying of thermopair should be laid corresponding compensating wire according to the difference of its calibration number, and general connection is also that red positive indigo plant is negative; Thermal resistance is generally concentric line of three-wire system, and another two connect arbitrarily.
4. a kind of for working-yard thermal meter method for rapidly debugging according to claim 1, it is characterized in that: in described step 6, analog quantity loop-around test is that 4～20mA analog signals of 4～20mA analog signals that Standard General is sent and automatic control program output is by thermal meter laying-out input cabinet inner module or output to field instrument end by module, and it is noiseless tentatively to confirm that cable is laid with, cabinet inner terminal should meet designing requirement to the setting of the selecting of module circuit, module, automated procedures, legend and parameter; Digital quantity loop-around test is the analogue instrument equipment switching value signal of exporting while reaching chain setting value that is in operation, two connecting lines at instrumentation connection terminal place can be disconnected to one arbitrarily if can make war to move according to designing requirement, can be at the connection terminal place of instrumentation bonding line short circuit if must put action.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105697865A (en) * | 2014-11-24 | 2016-06-22 | 天津二十冶建设有限公司 | Rapid on-site adjustment method for angular travel execution mechanism valve |
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