CN104084331A - Dual-component high-pressure proportion-adjustable fire retardant coating spraying device and method - Google Patents
Dual-component high-pressure proportion-adjustable fire retardant coating spraying device and method Download PDFInfo
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- CN104084331A CN104084331A CN201410364983.7A CN201410364983A CN104084331A CN 104084331 A CN104084331 A CN 104084331A CN 201410364983 A CN201410364983 A CN 201410364983A CN 104084331 A CN104084331 A CN 104084331A
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- 238000000576 coating method Methods 0.000 title claims abstract description 371
- 239000011248 coating agent Substances 0.000 title claims abstract description 359
- 238000005507 spraying Methods 0.000 title claims abstract description 70
- 238000000034 method Methods 0.000 title abstract description 8
- 239000003063 flame retardant Substances 0.000 title abstract 4
- 238000010438 heat treatment Methods 0.000 claims abstract description 82
- 230000007246 mechanism Effects 0.000 claims abstract description 32
- 238000004140 cleaning Methods 0.000 claims abstract description 26
- 238000002156 mixing Methods 0.000 claims abstract description 18
- 238000012360 testing method Methods 0.000 claims abstract description 5
- 239000003973 paint Substances 0.000 claims description 215
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 163
- 239000007921 spray Substances 0.000 claims description 57
- 238000007599 discharging Methods 0.000 claims description 27
- 238000009413 insulation Methods 0.000 claims description 24
- 238000013461 design Methods 0.000 claims description 18
- 230000002000 scavenging effect Effects 0.000 claims description 15
- 239000000203 mixture Substances 0.000 claims description 14
- 230000008676 import Effects 0.000 claims description 9
- 239000008236 heating water Substances 0.000 claims description 8
- 230000000694 effects Effects 0.000 claims description 6
- 230000008520 organization Effects 0.000 claims description 4
- 239000012774 insulation material Substances 0.000 claims description 2
- 230000014759 maintenance of location Effects 0.000 claims description 2
- 238000004064 recycling Methods 0.000 claims description 2
- 238000003756 stirring Methods 0.000 claims description 2
- 239000002351 wastewater Substances 0.000 claims description 2
- 239000000463 material Substances 0.000 description 8
- 150000001875 compounds Chemical class 0.000 description 5
- 238000005086 pumping Methods 0.000 description 5
- 238000010276 construction Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000010304 firing Methods 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 239000000284 extract Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000010813 municipal solid waste Substances 0.000 description 2
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- 238000004378 air conditioning Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000008199 coating composition Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
- B05B7/02—Spray pistols; Apparatus for discharge
- B05B7/04—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge
- B05B7/0408—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge with arrangements for mixing two or more liquids
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B15/00—Details of spraying plant or spraying apparatus not otherwise provided for; Accessories
- B05B15/50—Arrangements for cleaning; Arrangements for preventing deposits, drying-out or blockage; Arrangements for detecting improper discharge caused by the presence of foreign matter
- B05B15/55—Arrangements for cleaning; Arrangements for preventing deposits, drying-out or blockage; Arrangements for detecting improper discharge caused by the presence of foreign matter using cleaning fluids
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
- B05B7/02—Spray pistols; Apparatus for discharge
- B05B7/12—Spray pistols; Apparatus for discharge designed to control volume of flow, e.g. with adjustable passages
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
- B05B7/16—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas incorporating means for heating or cooling the material to be sprayed
- B05B7/1673—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas incorporating means for heating or cooling the material to be sprayed heat being transferred to the material to be sprayed by a heat transfer conductive fluid
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Abstract
The invention provides a dual-component high-pressure proportion-adjustable fire retardant coating spraying device and method. The dual-component high-pressure proportion-adjustable fire retardant coating spraying device comprises a control mechanism, a main air feed pump, a feeding mechanism, a heating mechanism, a proportioning mechanism, a spraying mechanism and a cleaning mechanism. The control mechanism is a digital electronic controller, the input end of the main air feed pump is connected with an external air source, the output end of the main air feed pump is connected with the feeding mechanism, the heating mechanism, the proportioning mechanism, the spraying mechanism and the cleaning mechanism through an air pressure adjusting device, and a switch of the main air feed pump is connected with a main air switch of the digital electronic controller. The dual-component high-pressure proportion-adjustable fire retardant coating spraying method includes the steps of adding A-component coatings and B-component coatings into an A-component coating bucket and a B-component coating bucket; heating the A-component coatings, the B-component coatings and coating pipes; when the temperature of the A-component coatings and the temperature of the B-component coatings reach the set temperature, adjusting the proportion of the A-component coatings to the B-component coatings, and carrying out proportion testing; mixing the A-component coatings and the B-component coatings through a far end mixer; adding the A-component coatings and the B-component coatings which are completely mixed into a mixed coating pipe; carrying out spraying; cleaning the device after spraying is completed; stopping the device. The spraying efficiency is high, and the coating quality is good.
Description
Technical field
The present invention relates to fireproof paint spraying equipment and the method for a kind of pair of component high pressure proportion adjustable.
Background technology
Current all multi-brand fireproof paints (Chartek.Chartek1709.FiretexM90.Pitt-char XP etc.) in the extensive use of ocean engineering field, be on the increase by spraying equipment demand.Because fireproof paint has the characteristic that viscosity is larger, material construction temperature need to remain on 50 to 60 DEG C, therefore higher to construction equipment performance requirement, and spraying method is also comparatively complicated.The problem that the spraying equipment of this class coating exists at present has: 1, the circulation of equipment paint heating is to be completed by proportioning plunger displacement pump, aggravation proportioning plunger displacement pump wearing and tearing like this, thereby change proportioning plunger pump cylinder body volume, coating easy to leak, distributing precision error is strengthened, shorten service life of equipment, and increase fittings consumption cost.2, coating pipeline heat insulation adopts hot water form, but only mixing pumping is taked to the measure of heating to this section of blender, and A, B charging basket are to mixing between pumping without any the measure of heating, like this in the time working for the second time, fail to obtain good heating and thermal insulation from A, B charging basket to A, the B material mixing pumping, can cause system just to work and start the mixing uneven phenomenon of a period of time, cause unnecessary paint waste and product quality problem.In addition, system heat-insulating property and efficiency are low, and before spraying, coating is only used hot water heating, and coating reaches predetermined temperature need to shift to an earlier date preheating for a long time, and energy consumption is high, execute-in-place inconvenience.3, coating formula main pump be fixed volume than (2.33:1), coating ratio narrow application range, can not adapt to the proportioning ratio of current engineering fireproof paint kind used completely.In addition, spray pressure low (52:1), therefore the relatively large coating of spray viscosity can be very painstaking, so bad adaptability.4, before fireproof paint construction, need in air-conditioning insulated container case, store the time oversize (approximately 24 hours) of preheating, excess Temperature (30 to 33 DEG C), efficiency is low, and energy consumption is high.Therefore, the improvement of still needing.
Summary of the invention
Main purpose of the present invention is to overcome the above-mentioned shortcoming that existing product exists, and fireproof paint spraying equipment and the method for a kind of pair of component high pressure proportion adjustable are provided, the coating ratio scope of application is wide, can adapt to the proportioning ratio of current engineering fireproof paint kind used, coating atomizing effect is good, spray efficiency is high, and coating quality is good, time-saving energy-saving, simple to operate, the spraying operation that can meet all pairs of component fireproof paints, device structure is reasonable in design, result of use ideal.
The object of the invention is to be realized by following technical scheme.
The fireproof paint spraying equipment of the two component high pressure proportion adjustables of the present invention, is characterized in that, comprises controlling organization, main air feed pump, feeding mechanism, heating arrangements, Proportioning mechanism, spray body and wiper mechanism; This controlling organization is digital electronic controller; The input of this main air feed pump is connected with external gas source, and main air feed delivery side of pump is connected by air transformer respectively with feeding mechanism, heating arrangements, Proportioning mechanism, spray body and wiper mechanism; The switch of main air feed pump is connected with the primary air switch of digital electronic controller.
The fireproof paint spraying equipment of aforesaid pair of component high pressure proportion adjustable, wherein, described feeding mechanism comprises A component coating feeding pump, B component coating feeding pump, A component paint can, B component paint can, A component coating bulk supply pump and B component coating bulk supply pump;
The delivery outlet of this A component feeding pump is connected with one end of the first high pressure heat-preserving flexible pipe, this the first high pressure heat-preserving flexible pipe other end is connected with the valve at A component paint can charging aperture place, the input port of A component feeding pump is connected with the siphon pipe dish that is arranged in A component paint can, sucks coating by siphon pipe dish in A component feeding pump; A component coating bulk supply pump charging aperture is connected with A component charging basket discharging opening by siphon pipe, A component coating bulk supply pump discharging opening is connected with the A component coating proportioning valve of proportioning machine, and the other electromagnetic inductor that is provided with of A component coating bulk supply pump plunger, this electromagnetic inductor is connected with the A component coating proportioning valve of proportioning machine, and the discharging opening place of this proportioning valve is provided with stop valve and sample valve;
The delivery outlet of this B component feeding pump is connected with one end of the second high pressure heat-preserving flexible pipe, this the second high pressure heat-preserving flexible pipe other end is connected with the valve at B component paint can charging aperture place, the input port of B component feeding pump is connected with the siphon pipe dish that is arranged in B component paint can, sucks coating by siphon pipe dish in B component feeding pump; B component coating bulk supply pump charging aperture is connected with B component charging basket discharging opening by siphon pipe, B component coating bulk supply pump discharging opening is connected with the B component coating proportioning valve of proportioning machine, and the other electromagnetic inductor that is provided with of B component coating bulk supply pump plunger, this electromagnetic inductor is connected with the B component coating proportioning valve of proportioning machine, and the discharging opening place of this proportioning valve is provided with stop valve and sample valve;
This A component paint can bucket wall is the hollow insulation layer that double-decker forms, and in this A component paint can, is provided with electrical heating coil pipe, temperature sensor and agitator, and A component paint can is provided with air transformer, and this air transformer is connected with main air feed pump output; This agitator is agitator air, and its air shut-off valve door is located at A component paint can top and is connected with main air feed pump output;
This B component paint can bucket wall is the hollow insulation layer that double-decker forms, and in this B component paint can, is provided with electrical heating coil pipe, temperature sensor and agitator, and B component paint can is provided with air transformer, and this air transformer is connected with main air feed pump output; This agitator is agitator air, and its air shut-off valve door is located at B component paint can top and is connected with main air feed pump output.
The fireproof paint spraying equipment of aforesaid pair of component high pressure proportion adjustable, wherein, described heating arrangements comprises water tank, paint can hot water circulating pump, coating pipe hot water circulating pump, spray gun coating pipe hot water circulating pump, the first electric heater and the second electric heater;
Wherein, be provided with electrical heating coil pipe and temperature sensor in water tank, this temperature sensor is connected with digital electronic controller and water tank electrical heating coil pipe respectively, and this electrical heating coil pipe is connected with the first electric heater; The second electric heater is provided with temperature sensor, this temperature sensor is connected with digital electronic controller, A component paint can electrical heating coil pipe and B component paint can electrical heating coil pipe respectively, and the coating in A, B component paint can is directly heated by electrical heating coil pipe respectively; The outlet of this water tank is connected by valve with the input of paint can hot water circulating pump, coating pipe hot water circulating pump, spray gun coating pipe hot water circulating pump by heat-preserving hose respectively;
The input of this paint can hot water circulating pump is provided with air transformer, this air transformer is connected with main air feed pump output, paint can hot water circuit delivery side of pump is provided with two-port valve, two through holes of this two-port valve are connected with the import of A component paint can and B component paint can hollow insulation layer by heat-preserving hose respectively, by the conduction of bucket wall heat, coating is heated, the outlet of A component paint can and the hollow insulation layer of B component paint can is connected by attemperater with the backwater import of water tank respectively, to form a hot water circulation loop;
The input of this coating pipe hot water circulating pump is provided with air transformer, this air transformer is connected with main air feed pump output, this coating pipe hot water circuit delivery side of pump is provided with two-port valve, together with two through holes of this two-port valve close up with the discharge nozzle of B component paint can with the discharge nozzle of A component paint can by flexible pipe respectively, also reflexing end and the water container backwater imports of 180 degree are connected to form hot water circulation loop, supply A component coating pipe and the B component coating pipe guarantor's mild heat to proportioning machine proportioning valve section, make the coating of two coating pipes of this section maintain design temperature;
The input of this spray gun coating pipe hot water circulating pump is provided with air transformer, this air transformer is connected with main air feed pump output, also reflexing end and the water container backwater imports of 180 degree are connected to form hot water circulation loop to the flexible pipe that this spray gun coating pipe hot water circuit delivery side of pump connects together with closing up with B component coating proportioning valve B component coating pipe from A component coating proportioning valve A component coating pipe out, guarantor's mild heat for proportioning machine proportioning valve to A component coating pipe and the B component coating pipe of far-end blender section, makes the coating of two coating pipes of this section maintain design temperature.
The startup of heating water tanks system: open total power switch, then open water tank heating power supply switch, the first electric heater starts, be arranged on the water tank temp controlled meter that temperature sensor in water tank is transferred to the signal measuring digital electronic controller, if the temperature that temperature is set lower than temp controlled meter, this first electric heater can start automatically, to electrical heating coil pipe heating in water tank, when the temperature of water in water tank is during higher than design temperature, the first electric heater quits work automatically.
The startup of paint heating: in the time that the water temperature in water tank reaches setting value, open the paint can heat hot water valve of water tank water outlet, the air transformer of adjusting coating bucket hot water circulating pump simultaneously, paint can hot water circuit pump startup, hot water is circulated to respectively in A, B component paint can hollow insulation layer, indirectly A, B component coating are heated through heat exchange, then by the delivery port reflow tank of A, B component paint can, recycle.The temperature sensor senses arranging respectively in A component paint can and B component paint can to coating temperature while reaching settings, information is fed back to digital electronic controller by temperature sensor, paint can hot water circulating pump quits work, hot water circuit stops, the coating temperature arriving when temperature sensor senses is during lower than setting value, paint can hot water circulating pump is started working, and hot water circuit is started working;
The startup of paint can internal electrical heating system: in the time that coating temperature reaches more than 30 DEG C, open the second electric heater, the second electric heater, to the electrical heating coil pipe heating in two paint cans, directly heats coating by electric heating plate, accelerates the firing rate of coating; The second electric heater self is with Temperature Setting knob and temperature sensor, and when temperature is during lower than setting value, heater can be started working automatically, otherwise stops.
This first electric heater and the second electric heater are commercially available prod, and model is GRACO-226819.
The fireproof paint spraying equipment of aforesaid pair of component high pressure proportion adjustable, is characterized in that, described Proportioning mechanism comprises electronics proportioning machine, A component coating feeding pump and B component coating feeding pump; This electronics proportioning machine is commercially available prod, model is GRACO68-A1 electronics proportioning machine, and the A component coating proportioning valve of this electronics proportioning machine is connected with electromagnetic inductor, the ratio configuration switch of digital electronic controller and the discharge valve of A component paint can on A component coating bulk supply pump plunger side respectively; The B component coating proportioning valve of this electronics proportioning machine and other with B component coating bulk supply pump plunger respectively electromagnetic inductor and the ratio configuration switch of digital electronic controller and the discharge valve of B component paint can are connected.
Heating arrangements is by paint heating during to duty, set respectively A component coating ratio and B component coating ratio by the ratio configuration switch of digital electronic controller, A component coating feeding pump and B component coating feeding pump are started working, A component coating and B component coating are extracted into respectively in the A component coating proportioning valve and B component coating proportioning valve of proportioning machine from A component paint can and B component paint can, the preset proportion of the proportioning valve combine digital electronic controller ratio configuration switch of proportioning machine is also started working, A component coating and B component coating are sent into A component coating feed pipe according to preset proportion assignment of traffic, after B component coating feed pipe, enter in far-end blender, A component coating proportioning valve and B component coating proportioning valve basis and A component coating bulk supply pump respectively simultaneously, whether the other electromagnetic inductor connection feedack of B component coating bulk supply pump plunger is revised duty correct, if when A component coating feeding pump and B component coating feeding pump are drawn the ratio of A component coating and B component coating and setting inconsistent, proportioning valve can send alarm signal by feedback information to digital electronic controller, stop feed, otherwise, normally work.
The fireproof paint spraying equipment of aforesaid pair of component high pressure proportion adjustable, wherein, described spray body comprises A component coating feed pipe, B component coating feed pipe, far-end blender, mixes converying feeding tube and spray gun;
The A component coating charging aperture that this far-end blender is provided with is connected with A component coating feed pipe one end, and the B component coating charging aperture being provided with is connected with B component coating feed pipe one end, and the discharging opening that far-end blender is provided with is connected with mixing converying feeding tube one end;
The A component ratio valve discharging opening of proportioning machine is connected with the A component coating feed pipe other end, B component ratio valve discharging opening is connected with the other end of B component coating feed pipe, the built-in helical form mixing tube that supplies A component coating and B component coating to mix in this far-end blender, the discharging opening of this far-end blender is connected with spray gun by the other end that mixes converying feeding tube, two kinds of component coating fully mix merga pass mixing converying feeding tube and enter spray gun under air pressure effect in far-end blender, complete spraying operation;
Outside A component coating feed pipe and B component coating feed pipe tube wall, wrapped up in deposited by insulation material;
Described wiper mechanism comprises water tank, scavenging pump and spray gun; Scavenging pump input is provided with air transformer, this air transformer is connected with the cleaning hot water valve of main air feed pump output and water tank, scavenging pump output is connected with the hot water input of far-end blender by heat-preserving hose, the output end of hot water of far-end blender is connected with spray gun by mixing converying feeding tube, and the hot water after cleaning is discharged into waste water recycling bin from spray gun.
After spraying operation finishes, close the A component coating feed pipe that far-end blender connects, the control valve of B component coating feed pipe, open the hot water cleaning valve on compound cleaning valve and the water tank on far-end blender, pull spray gun trigger, adjust scavenging pump air transformer simultaneously, start scavenging pump, scavenging pump directly extracts hot water to far-end blender from water tank, compo pipe and spray gun clean, in the time that the water of spray gun ejection is limpid, clean up, close air transformer, continue to pull spray gun trigger pressure release, while no longer flowing out water, close the compound cleaning valve on far-end blender, washing and cleaning operation finishes.
The spraying method of the fireproof paint spraying equipment of the two component high pressure proportion adjustables of the present invention, is characterized in that, comprises the following steps:
(1) in A component paint can, add A component coating, in B component paint can, add B component coating;
(2) starting heating system heats the B component coating adding in the A component coating adding in A component paint can and B component paint can respectively;
(3) in the time that A component coating and B component coating reach design temperature, stop the heating to paint can, start heating system to A component paint can discharge nozzle and the heating of B component paint can discharge nozzle, control and maintain design temperature through the coating of two discharge nozzles;
(4) open proportioning machine, adjust the proportioning ratio of A component coating and B component coating, carry out the ratio test of A component coating and B component coating;
(5) A component coating and the B component coating of adjusting ratio enter far-end blender through A component coating feed pipe and B component coating feed pipe respectively under keeping warm mode, in the built-in helical form mixing tube of far-end blender, fully mix, become the stable coating of even density;
(6) connect paint finishing, in the compo pipe of paint finishing, add the A component coating and the B component coating that mix;
(7) open spray gun, spray;
(8) spraying operation finishes, the equipment cleaning after spraying;
(9) shutdown.
The spraying method of the fireproof paint spraying equipment of aforesaid pair of component high pressure proportion adjustable, wherein, in described (2) step, comprise that to adding the heating steps of coating in A component paint can and B component paint can hot water circuit indirect coating and electrical heating coil pipe directly heat coating; Indirect coating is by the water in the first electric heater heating water tank, water temperature in water tank is during higher than A component coating and B component coating design temperature, the paint heating circulating pump of opening the valve of water outlet of water tank and being connected with the hot water valve of A component paint can and B component paint can respectively, make hot water in water tank enter respectively the hollow insulation layer of A component paint can and B component paint can, by the hot water circuit indirect coating of hollow insulation layer; It is to open the second electric heater that electrical heating coil pipe directly heats coating, heated respectively the electrical heating coil pipe that is arranged on A component paint can and B component paint can internal layer by the second electric heater, directly heat coating by electrical heating coil pipe, the agitator air of opening in heating process on A component paint can and B component paint can carries out the stirring in heating process, plays the effect of uniform coating and uniform temperature.
The spraying method of the fireproof paint spraying equipment of aforesaid pair of component high pressure proportion adjustable, wherein, described coating design temperature comprises that the front A component coating of spraying and B component coating Temperature Setting are 30 to 40 DEG C, temperature retention time 20 to 24 hours, the temperature while spraying after A component coating and B component coating mix is controlled at 50 to 60 DEG C.
The spraying method of the fireproof paint spraying equipment of aforesaid pair of component high pressure proportion adjustable, wherein, the proportioning ratio of described proportioning machine be two kinds of component coating volumetric mixture ratios at 0.1:1 to 10:1, distributing precision error is less than ± 5%.
The spraying method of the fireproof paint spraying equipment of aforesaid pair of component high pressure proportion adjustable, wherein, the equipment cleaning after described spraying comprises, pressure release, the cleaning of A component coating pipe, the cleaning of B component coating pipe, the cleaning of compo pipe and heating water tank draining.
The fireproof paint spraying equipment of the two component high pressure proportion adjustables of the present invention and the beneficial effect of method, this spraying method can be controlled A component coating and two kinds of coating volumetric mixture ratios of B component coating scope at 0.1:1 to 10:1, and distributing precision error is less than ± and 5%; Operating pressure ratio is 68:1bar, and maximum working pressure (MWP) is 470bar, makes coating atomizing effect better, and spray efficiency is high, coating quality is good, saves the paint heating time, applied widely, the spraying operation that can meet all pairs of component fireproof paints, device structure is reasonable in design, result of use ideal.
Brief description of the drawings
Fig. 1 is the fireproof paint spraying equipment overall structure schematic diagram of of the present invention pair of component high pressure proportion adjustable.
Fig. 2 is feeding pump in the fireproof paint spraying equipment of of the present invention pair of component high pressure proportion adjustable, proportioning machine, heater and scavenging pump part-structure schematic diagram.
Fig. 3 is the fireproof paint spraying equipment fundamental diagram of of the present invention pair of component high pressure proportion adjustable.
Major label description in figure: 1 digital electronic controller, 2 is A component coating feeding pump, 21 first high pressure heat-preserving flexible pipes, 3 is B component coating feeding pump, 31 second high pressure heat-preserving flexible pipes, 4 is A component paint can, 5 is B component paint can, 6 main air feed pumps, 61 air transformers, 7 water tanks, 71 paint can hot water circulating pumps, 72 coating pipe hot water circulating pumps, 73 spray gun coating pipe hot water circulating pumps, 74 first electric heaters, 75 second electric heaters, 81 is A component coating pipe, 82 is B component coating pipe, 83 far-end blenders, 84 mix converying feeding tube, 85 spray guns, 9 proportioning machines, 10 scavenging pumps, 11 is A component coating bulk supply pump, 12 is B component coating bulk supply pump.
Detailed description of the invention
Embodiment:
One, device start: before operation, first connect device power supply (DPS) (220V) and source of the gas (0.7MPa, flow>=5m
3/ min).
Two, paint can material loading:
Respectively A component coating feeding pump 2 is connected with main air feed pump 6 outputs by air hose with the air transformer on B component coating feeding pump 3, open the primary air switch of A component coating feeding pump 2 and B component coating feeding pump 3, regulate air regulator, increase gradually air pressure, the hydraulic cylinder of two component coating feeding pumps respectively by the jacking of two kinds of component coating siphon pipe dishes to peak, by barreled A component coating, B component coating is placed on respectively coating siphon pipe dish below separately, regulate air transformer that the charging aperture of A component paint can 4 is connected with the output of A component coating feeding pump 2 and charging by the first high pressure heat-preserving flexible pipe 21, equally the charging aperture of B component paint can 5 is connected with the output of B component coating feeding pump 3 and charging by the second high pressure heat-preserving flexible pipe 31, close A component coating feeding pump 2 and B component coating feeding pump 3 primary air switches, paint can feeding process finishes.
Three, start heating arrangements: after all adding coating respectively in A component paint can and B component paint can, start heating arrangements.
1, the startup of heating water tanks, open total power switch, then open the heating power supply switch of water tank 7, the first electric heater 74 starts, the electrical heating coil pipe of the first electric heater starts the water in water tank to heat, temperature sensor in water tank is transferred to the signal measuring the water tank temp controlled meter of digital electronic controller 1, if the temperature that temperature is set lower than temp controlled meter, 74 of this first electric heaters can start automatically, the heating of water in feed-tank, when temperature during higher than design temperature the first electric heater automatically quit work.
2, the startup of paint heating: in the time that the water temperature in water tank 7 reaches setting value, open the paint can heat hot water valve of water tank water outlet, the air transformer 61 of adjusting coating bucket hot water circulating pump 71 simultaneously, pressure is controlled between 0.15MPa-0.25MPa (1.5bar-2.5bar), paint can hot water circuit pump startup, hot water is circulated to respectively in the hollow insulation layer of A component paint can 4 and B component paint can 5, indirectly A component coating and B component coating are heated through heat exchange, hot water is respectively by the delivery port reflow tank 7 of A component paint can and B component paint can, recycle.The temperature sensor senses that A component paint can 4 and B component paint can 5 inner sides arrange to coating temperature while reaching settings, information is fed back to digital electronic controller 1 by temperature sensor, paint can hot water circulating pump quits work, hot water circuit stops, the coating temperature arriving when temperature sensor senses is during lower than setting value, paint can hot water circulating pump 71 is started working, and hot water circuit is started working;
3, the startup of paint can internal electrical heating arrangements: in the time that coating temperature reaches more than 30 DEG C, open the second electric heater 75, the electrical heating coil pipe of the A component paint can 4 being connected with the second electric heater 75 respectively and the 5 interior settings of B component paint can directly heats coating, accelerates the firing rate of coating.The second electric heater self is with Temperature Setting knob and temperature sensor, and when temperature is during lower than setting value, the second electric heater can be started working automatically, otherwise stops.
4, start the heating of coating pipe: the air transformer of adjusting coating pipe hot water circulating pump 72, coating pipe hot water circulating pump air transformer pressure value is controlled between 0.1MPa-0.2MPa (1bar-2bar), together with hot water starts to close up with the discharge nozzle of B component paint can 5 from the flexible pipe of coating pipe hot water circuit delivery side of pump and the discharge nozzle of A component paint can 4 and reflexing end and the water container backwater imports of 180 degree be connected to form hot water circulation loop, supply A component coating pipe and the B component coating pipe guarantor's mild heat to proportioning machine proportioning valve section, make the coating of two coating pipes of this section maintain design temperature.
Four, proportioning machine operation: open the primary air switch of electronics proportioning machine 9, the A component electromagnetic proportional valve of electronics proportioning machine 9 is connected with electromagnetic inductor, the ratio configuration switch of digital electronic controller 1 and the discharge valve of A component paint can 4 on A component coating bulk supply pump 11 plungers sides respectively, by the B component electromagnetic proportional valve of electronics proportioning machine 9, the electromagnetic inductor other with B component coating bulk supply pump 12 plungers and the ratio configuration switch of digital electronic controller 1 and the discharge valve of B component paint can 5 are connected respectively, when paint heating is during to duty, the ratio of A component coating and B component coating is set by the ratio configuration switch of digital electronic controller 1, A component coating bulk supply pump 11 and B component coating bulk supply pump 12 are started working, A component coating and B component coating are extracted into respectively in A component coating proportioning valve and B component coating proportioning valve from A component paint can and B component paint can, proportioning valve is carried out preset proportion and is started working, A component coating is delivered in far-end blender 83 by the A component coating pipe 81 of insulation according to preset proportion flow, B component coating is delivered in far-end blender 83 by the B component coating pipe 82 of insulation according to preset proportion flow, simultaneously A component coating proportioning valve and B component coating proportioning valve are connected feedack according to the electromagnetic inductor other with A component coating bulk supply pump plunger and the other electromagnetic inductor of B component coating bulk supply pump plunger respectively whether revise duty correct, if A component coating bulk supply pump and B component coating bulk supply pump are drawn respectively the ratio of A component coating and B component coating and preset proportion when inconsistent, proportioning valve can feedback information to the alarm of digital electronic controller, send alarm signal, and stop feed, otherwise, normally work.
Five, the ratio of coating test: when operation first and the discharging ratio of A component paint can and A component paint can of need to checking are carried out ratio test when whether correct.
Getting two clean 1000cc containers is placed on respectively below the sample valve of A component paint can and the sample valve of B component paint can, open A component coating proportioning valve and B component coating proportioning valve simultaneously, A component coating and B component flow into container according to preset proportion with different in flow rate, in any one same time, close sample valve simultaneously, calculate the weight of coating in two containers by weighing, if do not meet proportion requirement, carry out ratio adjustment, until reach dual-component coating ratio requirement.
Six, spray gun coating pipe fills material and spraying: open the A component coating proportioning valve discharging opening of proportioning machine 9 and the A component coating charging aperture of far-end blender, in far-end blender, add A component coating; Open equally the B component ratio valve discharging opening of proportioning machine 9 and the B component coating charging aperture of far-end blender, in far-end blender, add B component coating; Then by helical form mixing tube built-in in this far-end blender, A component coating and B component coating are mixed, mixed dual-component coating enters spray gun 85 by the discharging opening of far-end blender by mixing converying feeding tube 84, carries out spraying operation.
Seven, pressure release: shut spray gun 85 and primary air switch, close A component paint can coating discharging opening valve, and close B component paint can coating discharging opening valve, then open spray gun, on the trash receptacle by spray gun near ground connection, pull spray gun trigger, by earth pressure release.Get trash receptacle and be placed under A component paint can and B component paint can sample valve, open sample valve and discharge the pressure between A component coating feeding pump, B component coating feeding pump and proportioning machine proportioning valve.
Eight, mix tube is cleaned: close the charging control valve of A component coating pipe and the charging control valve of B component coating pipe that far-end blender 83 connects, compound cleaning valve and the water tank opened on far-end blender 83 clean hot water valve, pull spray gun trigger, adjust scavenging pump air transformer, start scavenging pump 10, scavenging pump directly extracts hot water in heating water tank far-end blender and mixed coating pipe and spray gun is cleaned, in the time of spray gun ejection clean water, prove to clean up, close scavenging pump air transformer, continue to pull spray gun 85 trigger pressure releases simultaneously, in the time that spray gun 85 no longer there are flowing out, close the compound cleaning valve on far-end blender, compound cleaning finishes.
Nine, A component coating feeding pump, B component coating feeding pump, A component coating pipe, B component coating pipe and spray gun clean: discharge valve and the circulating-heating valve of closing A component paint can and B component paint can, open discharging opening valve and charging aperture valve, get two empty buckets, go out to put two barrels of hot water from heating water tank delivery port, be put into respectively below A component coating feeding pump and B component coating feeding pump, siphon pipe dish is fallen into respectively in A component paint can and B component paint can, operate according to A component coating and B component coating material material loading step, hot water is passed through to A component coating feeding pump and B component coating feeding pump respectively and suck in A component paint can and B component paint can, open A component coating bulk supply pump 11, B component coating bulk supply pump 12, the hot water of A component paint can and B component paint can is entered to coating pipe through proportioning valve separately respectively, then open spray gun, flow of hot water is through far-end blender, remaining coating in far-end blender is all cleaned up, repetitive process, until wash clean.
Ten, tank drains: open water tank 7 draining valves, the water in water tank is bled off.After water in water tank is emptying, do not close water tank drain valve, open A component paint can hollow insulation layer draining valve and B component paint can heat-insulation layer draining valve discharges water, after water emptying, start paint can hot water circulating pump 71, the water in this paint can hot water circulating pump 71 and connected circulating water line is all discharged.Start spray gun coating pipe hot water circulating pump, the case lid of fetching boiling water is observed, and after finding not water outlet of water return outlet, proves that circulating water line is emptying, closes spray gun coating pipe hot water circulating pump.
The advantage of the fireproof paint spraying equipment of the two component high pressure proportion adjustables of the present invention: the design of (1) overall structure integraty, rational deployment, all parts are installed on a moveable carriage, are convenient to mobile operating and maintenance.(2) be provided with 0.1:1 to 10:1 bi-component device capable of adjusting ratio machine, overcome the nonadjustable defect of existing equipment ratio, can be suitable for the spraying of various different viscositys and different proportion coating.By pumping, A, B component coating are delivered in proportioning valve separately after A, B component coating pipe aspirate up and pressurize from paint can exit respectively, according to A, the other electromagnetic inductor of B component coating material loading pumping plunger, feedack, accurately adjusted the flow of A, B component coating by digital electronic controller processing feedback information, the A, the B component coating that are assigned with are transported near far-end blender spray gun and mix through painting material conveying tube separately, and mixed coating is delivered to spray gun.(3) adopt independent heating heat preservation mechanism, improve firing rate and the efficiency of heating surface, energy-conserving and environment-protective.In paint can, coating adopts self-loopa mode of heating, and the speed of coating initial heating is effectively promoted, and reduces the construction stand-by period.Coating temperature is by the temperature sensor output signal in paint can, and temp controlled meter receives the break-make of control heater power supply and the start-stop of circulating pump after signal, and coating temperature is controlled well.A, B component paint can, to mixing converying feeding tube and all adopting circulating water heat insulation heating to far-end blender, guarantee to mix front coating temperature, and while preventing from just starting working, coating mixes uneven phenomenon, saves coating, improves the quality of products.(4) be provided with automatic hot-water wiper mechanism, rationally utilize insulation hot water to carry out equipment cleaning, simple to operate, cleaning performance ideal, reduces and pollutes.(5) be provided with main air feed pump, this main air feed pump output respectively with A component paint can, the air transformer 61 that passes through of B component paint can connects, make whole charging basket inside have high pressure, can make coating mobility better by this pressure, and main air feed pump output also respectively with A, B component coating feeding pump connects by air transformer 61, make A, B component coating is from A, in B component paint can, draw coating and deliver to the A of proportioning machine, in B component coating proportioning valve, when charging by regulate air transformer, can judge in advance coating addition and observe coating residue situation in paint can simultaneously, supplement at any time reinforced.(6) adopt independent paint heating endless form, each paint can is respectively equipped with electrical heating coil pipe and is connected with the first electric heater, can directly heat the coating in each paint can; And the hollow insulation layer of each paint can is connected with paint can hot water circulating pump respectively, paint can hot water circuit pump startup, is circulated to hot water respectively in the hollow insulation layer of each point of paint can, indirectly coating is heated through heat exchange, make paint heating speed fast, time-saving energy-saving.
The above, it is only preferred embodiment of the present invention, not the present invention is done to any pro forma restriction, any simple modification, equivalent variations and modification that every foundation technical spirit of the present invention is done above embodiment, all still belong in the scope of technical solution of the present invention.
Claims (10)
1. a fireproof paint spraying equipment for two component high pressure proportion adjustables, is characterized in that, comprises controlling organization, main air feed pump, feeding mechanism, heating arrangements, Proportioning mechanism, spray body and wiper mechanism; This controlling organization is digital electronic controller; The input of this main air feed pump is connected with external gas source, and main air feed delivery side of pump is connected by air transformer respectively with feeding mechanism, heating arrangements, Proportioning mechanism, spray body and wiper mechanism; The switch of main air feed pump is connected with the primary air switch of digital electronic controller.
2. the fireproof paint spraying equipment of according to claim 1 pair of component high pressure proportion adjustable, it is characterized in that, described feeding mechanism comprises A component coating feeding pump, B component coating feeding pump, A component paint can, B component paint can, A component coating bulk supply pump and B component coating bulk supply pump;
The delivery outlet of this A component feeding pump is connected with one end of the first high pressure heat-preserving flexible pipe, this the first high pressure heat-preserving flexible pipe other end is connected with the valve at A component paint can charging aperture place, the input port of A component feeding pump is connected with the siphon pipe dish that is arranged in A component paint can, sucks coating by siphon pipe dish in A component feeding pump; A component coating bulk supply pump charging aperture is connected with A component charging basket discharging opening by siphon pipe, A component coating bulk supply pump discharging opening is connected with the A component coating proportioning valve of proportioning machine, and the other electromagnetic inductor that is provided with of A component coating bulk supply pump plunger, this electromagnetic inductor is connected with the A component coating proportioning valve of proportioning machine, and the discharging opening place of this proportioning valve is provided with stop valve and sample valve;
The delivery outlet of this B component feeding pump is connected with one end of the second high pressure heat-preserving flexible pipe, this the second high pressure heat-preserving flexible pipe other end is connected with the valve at B component paint can charging aperture place, the input port of B component feeding pump is connected with the siphon pipe dish that is arranged in B component paint can, sucks coating by siphon pipe dish in B component feeding pump; B component coating bulk supply pump charging aperture is connected with B component charging basket discharging opening by siphon pipe, B component coating bulk supply pump discharging opening is connected with the B component coating proportioning valve of proportioning machine, and the other electromagnetic inductor that is provided with of B component coating bulk supply pump plunger, this electromagnetic inductor is connected with the B component coating proportioning valve of proportioning machine, and the discharging opening place of this proportioning valve is provided with stop valve and sample valve;
This A component paint can bucket wall is the hollow insulation layer that double-decker forms, and in this A component paint can, is provided with electrical heating coil pipe, temperature sensor and agitator, and A component paint can is provided with air transformer, and this air transformer is connected with main air feed pump output; This agitator is agitator air, and its air shut-off valve door is located at A component paint can top and is connected with main air feed pump output;
This B component paint can bucket wall is the hollow insulation layer that double-decker forms, and in this B component paint can, is provided with electrical heating coil pipe, temperature sensor and agitator, and B component paint can is provided with air transformer, and this air transformer is connected with main air feed pump output; This agitator is agitator air, and its air shut-off valve door is located at B component paint can top and is connected with main air feed pump output.
3. the fireproof paint spraying equipment of according to claim 1 pair of component high pressure proportion adjustable, it is characterized in that, described heating arrangements comprises water tank, paint can hot water circulating pump, coating pipe hot water circulating pump, spray gun coating pipe hot water circulating pump, the first electric heater and the second electric heater;
Wherein, be provided with electrical heating coil pipe and temperature sensor in water tank, this temperature sensor is connected with digital electronic controller and water tank electrical heating coil pipe respectively, and this electrical heating coil pipe is connected with the first electric heater; The second electric heater is provided with temperature sensor, and this temperature sensor is connected with digital electronic controller, A component paint can electrical heating coil pipe and B component paint can electrical heating coil pipe respectively; The outlet of this water tank is connected by valve with the input of paint can hot water circulating pump, coating pipe hot water circulating pump, spray gun coating pipe hot water circulating pump by heat-preserving hose respectively;
The input of this paint can hot water circulating pump is provided with air transformer, this air transformer is connected with main air feed pump output, paint can hot water circuit delivery side of pump is provided with two-port valve, two through holes of this two-port valve are connected with the import of A component paint can and B component paint can hollow insulation layer by heat-preserving hose respectively, by the conduction of bucket wall heat, coating is heated, the outlet of A component paint can and the hollow insulation layer of B component paint can is connected by attemperater with the backwater import of water tank respectively, to form a hot water circulation loop;
The input of this coating pipe hot water circulating pump is provided with air transformer, this air transformer is connected with main air feed pump output, this coating pipe hot water circuit delivery side of pump is provided with two-port valve, together with two through holes of this two-port valve close up with the discharge nozzle of B component paint can with the discharge nozzle of A component paint can by flexible pipe respectively, also reflexing end and the water container backwater imports of 180 degree are connected to form hot water circulation loop, supply A component coating pipe and the B component coating pipe guarantor's mild heat to proportioning machine proportioning valve section, make the coating of two coating pipes of this section maintain design temperature;
The input of this spray gun coating pipe hot water circulating pump is provided with air transformer, this air transformer is connected with main air feed pump output, also reflexing end and the water container backwater imports of 180 degree are connected to form hot water circulation loop to the flexible pipe that this spray gun coating pipe hot water circuit delivery side of pump connects together with closing up with B component coating proportioning valve B component coating pipe from A component coating proportioning valve A component coating pipe out, guarantor's mild heat for proportioning machine proportioning valve to A component coating pipe and the B component coating pipe of far-end blender section, makes the coating of two coating pipes of this section maintain design temperature;
This first electric heater and the second electric heater are commercially available prod, and model is GRACO-226819.
4. the fireproof paint spraying equipment of according to claim 1 pair of component high pressure proportion adjustable, is characterized in that, described Proportioning mechanism comprises electronics proportioning machine, A component coating feeding pump and B component coating feeding pump; This electronics proportioning machine is commercially available prod, model is GRACO68-A1 electronics proportioning machine, and the A component coating proportioning valve of this electronics proportioning machine is connected with electromagnetic inductor, the ratio configuration switch of digital electronic controller and the discharge valve of A component paint can on A component coating bulk supply pump plunger side respectively; The B component coating proportioning valve of this electronics proportioning machine and other with B component coating bulk supply pump plunger respectively electromagnetic inductor and the ratio configuration switch of digital electronic controller and the discharge valve of B component paint can are connected.
5. the fireproof paint spraying equipment of according to claim 1 pair of component high pressure proportion adjustable, is characterized in that, described spray body comprises A component coating feed pipe, B component coating feed pipe, far-end blender, mixes converying feeding tube and spray gun;
The A component coating charging aperture that this far-end blender is provided with is connected with A component coating feed pipe one end, and the B component coating charging aperture being provided with is connected with B component coating feed pipe one end, and the discharging opening that far-end blender is provided with is connected with mixing converying feeding tube one end;
The A component ratio valve discharging opening of proportioning machine is connected with the A component coating feed pipe other end, B component ratio valve discharging opening is connected with the other end of B component coating feed pipe, the built-in helical form mixing tube that supplies A component coating and B component coating to mix in this far-end blender, the discharging opening of this far-end blender is connected with spray gun by the other end that mixes converying feeding tube, two kinds of component coating fully mix merga pass mixing converying feeding tube and enter spray gun under air pressure effect in far-end blender, complete spraying operation;
Outside A component coating feed pipe and B component coating feed pipe tube wall, wrapped up in deposited by insulation material;
Described wiper mechanism comprises water tank, scavenging pump and spray gun; Scavenging pump input is provided with air transformer, this air transformer is connected with the cleaning hot water valve of main air feed pump output and water tank, scavenging pump output is connected with the hot water input of far-end blender by heat-preserving hose, the output end of hot water of far-end blender is connected with spray gun by mixing converying feeding tube, and the hot water after cleaning is discharged into waste water recycling bin from spray gun.
6. a spraying method for the fireproof paint spraying equipment of two component high pressure proportion adjustables as claimed in claim 1, is characterized in that, comprises the following steps:
(1) in A component paint can, add A component coating, in B component paint can, add B component coating;
(2) starting heating system heats the B component coating adding in the A component coating adding in A component paint can and B component paint can respectively;
(3) in the time that A component coating and B component coating reach design temperature, stop the heating to paint can, start heating system to A component paint can discharge nozzle and the heating of B component paint can discharge nozzle, control and maintain design temperature through the coating of two discharge nozzles;
(4) open proportioning machine, adjust the proportioning ratio of A component coating and B component coating, carry out the ratio test of A component coating and B component coating;
(5) A component coating and the B component coating of adjusting ratio enter far-end blender through A component coating feed pipe and B component coating feed pipe respectively under keeping warm mode, in the built-in helical form mixing tube of far-end blender, fully mix, become the stable coating of even density;
(6) connect paint finishing, in the compo pipe of paint finishing, add the A component coating and the B component coating that mix;
(7) open spray gun, spray;
(8) spraying operation finishes, the equipment cleaning after spraying;
(9) shutdown.
7. the spraying method of the fireproof paint spraying equipment of according to claim 6 pair of component high pressure proportion adjustable, it is characterized in that, in described (2) step, comprise that to adding the heating steps of coating in A component paint can and B component paint can hot water circuit indirect coating and electrical heating coil pipe directly heat coating; Indirect coating is by the water in the first electric heater heating water tank, water temperature in water tank is during higher than A component coating and B component coating design temperature, the paint heating circulating pump of opening the valve of water outlet of water tank and being connected with the hot water valve of A component paint can and B component paint can respectively, make hot water in water tank enter respectively the hollow insulation layer of A component paint can and B component paint can, by the hot water circuit indirect coating of hollow insulation layer; It is to open the second electric heater that electrical heating coil pipe directly heats coating, heated respectively the electrical heating coil pipe that is arranged on A component paint can and B component paint can internal layer by the second electric heater, directly heat coating by electrical heating coil pipe, the agitator air of opening in heating process on A component paint can and B component paint can carries out the stirring in heating process, plays the effect of uniform coating and uniform temperature.
8. the spraying method of the fireproof paint spraying equipment of according to claim 6 pair of component high pressure proportion adjustable, it is characterized in that, described coating design temperature comprises that the front A component coating of spraying and B component coating Temperature Setting are 30 to 40 DEG C, temperature retention time 20 to 24 hours, the temperature while spraying after A component coating and B component coating mix is controlled at 50 to 60 DEG C.
9. the spraying method of the fireproof paint spraying equipment of according to claim 6 pair of component high pressure proportion adjustable, it is characterized in that, the proportioning ratio of described proportioning machine be two kinds of component coating volumetric mixture ratios at 0.1:1 to 10:1, distributing precision error is less than ± 5%.
10. the spraying method of the fireproof paint spraying equipment of according to claim 6 pair of component high pressure proportion adjustable, it is characterized in that, equipment cleaning after described spraying comprises, pressure release, the cleaning of A component coating pipe, the cleaning of B component coating pipe, the cleaning of compo pipe and heating water tank draining.
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| CN201410364983.7A CN104084331B (en) | 2014-07-29 | 2014-07-29 | The fireproof coating spraying equipment of two component high pressure proportion adjustable and method |
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Address after: 100010 Chaoyangmen North Street, Dongcheng District, Dongcheng District, Beijing Co-patentee after: OFFSHORE OIL ENGINEERING Co.,Ltd. Patentee after: CHINA NATIONAL OFFSHORE OIL Corp. Co-patentee after: OFFSHORE OIL ENGINEERING (QINGDAO) Co.,Ltd. Co-patentee after: BEIJING RUI CHENG ZHI JIE SCIENCE AND TECHNOLOGY Co.,Ltd. Address before: 100010 Chaoyangmen North Street, Dongcheng District, Dongcheng District, Beijing Co-patentee before: OFFSHORE OIL ENGINEERING Co.,Ltd. Patentee before: CHINA NATIONAL OFFSHORE OIL Corp. Co-patentee before: OFFSHORE OIL ENGINEERING (QINGDAO) Co.,Ltd. Co-patentee before: BEIJING RUI CHENG ZHI JIE SCIENCE AND TECHNOLOGY Co.,Ltd. |
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