CN102908888A - Cleaning and passivating device, method and application for ferrous sulfide and hydrothion-containing gas - Google Patents
Cleaning and passivating device, method and application for ferrous sulfide and hydrothion-containing gas Download PDFInfo
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- CN102908888A CN102908888A CN2012103967718A CN201210396771A CN102908888A CN 102908888 A CN102908888 A CN 102908888A CN 2012103967718 A CN2012103967718 A CN 2012103967718A CN 201210396771 A CN201210396771 A CN 201210396771A CN 102908888 A CN102908888 A CN 102908888A
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Abstract
The invention provides a cleaning and passivating device for ferrous sulfide and hydrothion-containing gas. The cleaning and passivating device comprises a skid-mounted type liquid preparing tank car, a passivating cleaning agent supplying device and a water supplying device, wherein the passivating cleaning agent supplying device and the water supplying device are connected with the skid-mounted type liquid preparing tank car through pipelines, and are used for supplying the passivating cleaning agent and water to a liquid preparing groove of the skid-mounted type liquid preparing tank car. The cleaning and passivating device integrates the functions of material preparing, detecting, hydrothion-containing gas processing, and filtering, so that the operation is convenient and quick, the danger caused by the cleaning by utilizing the conventional cleaning and passivating device for ferrous sulfide can be reduced, and the ferrous sulfide and hydrothion-containing gas in production equipment of the petrochemical engineering can be quickly removed.
Description
Technical field
The invention belongs to the industrial gas oil field, relate in particular to a kind of ferrous sulfide for petrochemical equipment and H 2 S-containing gas Cleaning and Passivation device.
Background technology
Needs along with the development of national economy, China sharply increases the demand of crude oil, and the epoch of the interior light oil of global range pass by, and what replace then is the mink cell focus of high sulfur-bearing, and the sulphur in the petroleum refining process Crude Oil with device series reaction occurs and generates ferrous sulfide.Ferrous sulfide spontaneous combustion in the petrochemical equipment mainly occurs in the maintenance process, when equipment is opened in maintenance, the sulphur iron compound corrosion products such as ferrous sulfide that are attached to the parts surfaces such as tower, tank contact with air, and ferrous sulfide and airborne oxygen generation chemical reaction produce spontaneous combustion.Ferrous sulfide is recurrent phenomenon in the petroleum chemical industry naturally, analyze its reason, mainly be that equipment pipe is in the current-carrying working environment, the sulphur in the working media, particularly hydrogen sulfide and equipment material generation chemical reaction cause at e-quipment and pipe surface generation ferrous sulfide.In recent years, the things of ferrous sulfide Natural Damage equipment have occured in domestic many cover chemical plant installations cameras, therefore how to prevent ferrous sulfide the time naturally become the focus that people pay close attention in the chemical industry equipment.The industrial method of ferrous sulfide spontaneous combustion that prevents has three kinds at present:
1. isolation method: prevent that ferrous sulfide from contacting with airborne oxygen, as use nitrogen protection, water seal protection etc.;
2. removing method: ferrous sulfide is removed from equipment, as equipment is carried out mechanical cleaning, Chemical cleaning etc.;
3. Cleaning and Passivation method: carry out device processes with passivator, the ferrous sulfide of easy spontaneous combustion is converted into more stable compound, thereby prevents the spontaneous combustion of ferrous sulfide.
Isolation method is applicable to real-time online protection in the petrochemical production process, but in maintenance process, be difficult to effectively prevent the spontaneous combustion of ferrous sulfide, the removing method comprises physical removal and Chemical cleaning, physical removal mainly is to utilize special machine cleaning equipment surface dirt layer, the physical removal effect is undesirable, and surperficial remaining dirt is many; Chemical cleaning has alkali cleaning, pickling, organic solvent to clean, and the cleaning of adopting surfactant and the mixed chemical cleaning solution of the compositions such as alkali, organic solvent according to the difference of fouling kind, cleaning performance is equally matched with the Cleaning and Passivation method, but security is not as the Cleaning and Passivation method.The Cleaning and Passivation method is that traditional ablution and deactivation method combines, and namely suitably adds the composition of oxidisability passivator in chemical again.
At present, the Cleaning and Passivation method is used also fewer in petrochemical industry ferrous sulfide cleaning, and present ferrous oxide Cleaning and Passivation device complicated operation, and is dangerous high.
Summary of the invention
Technical problem to be solved by this invention is to be to provide a kind of novel ferrous sulfide Cleaning and Passivation device, this device has realized that batching, detection, hydrogen sulfide containing gas treatment and filtering function are in one, faster and more convenient operation, thereby reduced the danger that adopts existing ferrous sulfide Cleaning and Passivation device in cleaning process, to cause, removed fast and effectively the ferrous sulfide and the H 2 S-containing gas that exist in the petrochemical industry production equipment.
Based on this, the invention provides a kind of novel ferrous sulfide and H 2 S-containing gas Cleaning and Passivation device, it comprises: skid-mounted type dosing tank car, passivation cleaning agent feeding mechanism and water supply, described passivation cleaning agent feeding mechanism is connected with described skid-mounted type dosing tank car by pipeline with water supply, and being used for provides passivation cleaning agent and water to the liquid pool of described skid-mounted type dosing tank car.
Wherein, described Cleaning and Passivation device also further comprises gas distributor and sintered plate filter.
Wherein, described gas distributor is positioned at one side, bottom of the liquid pool of described skid-mounted type dosing tank car, the external pipe of described gas distributor is connected to the top of petrochemical equipment to be cleaned by the exhaust-gas treatment pipeline, the body height of the external pipe of described gas distributor will surpass skid-mounted type liquid pool height, refluxes when preventing from the tank car cleaning fluid being arranged.
Wherein, return duct is equipped with on liquid pool top at described skid-mounted type dosing tank car, at described return duct online PH meter and real time temperature monitoring meter are installed, at described return duct front end sample tap and valve are housed, be used for timing sampling, whether analyze degree of cleaning and concentration of lotion according to the institute sample thief, thereby judge whether to need to add the passivation cleaning agent and clean fully, described return duct is connected to the bottom of described petrochemical equipment to be cleaned by temporary pipeline.
Wherein, described sintered plate filter bits is in the another side of the liquid pool bottom of described skid-mounted type dosing tank car, described sintered plate filter is connected to by pipeline and adds the agent pump, the cleaning fluid that is made into by described passivation cleaning agent and described water filters by getting to equipment top to be cleaned after adding the agent pump through the sintered plate filter, the described agent pump discharge that adds connects two pipelines, article one, on the pipeline outlet valve is housed, outlet valve connects petrochemical equipment to be cleaned through pipeline, flow control valve is housed on another pipeline is used for regulating the described agent pump discharge flow that adds.
The present invention also provides a kind of novel ferrous sulfide and hydrogen sulfide Cleaning and Passivation device, and it comprises: skid-mounted type dosing tank car, passivation cleaning agent feeding mechanism, water supply, gas distributor and sintered plate filter;
Described passivation cleaning agent feeding mechanism is connected by the liquid pool of pipeline with described skid-mounted type dosing tank car with described water supply;
Described gas distributor is positioned at one side, bottom of the liquid pool of described skid-mounted type dosing tank car, the external pipe of described gas distributor is connected to the top of petrochemical equipment to be cleaned by the exhaust-gas treatment pipeline, the body height of the external pipe of described gas distributor will surpass skid-mounted type liquid pool height, refluxes to prevent the tank car cleaning liquid inside;
Described sintered plate filter bits is in the another side of the liquid pool bottom of described skid-mounted type dosing tank car, it is connected to by pipeline and adds the agent pump, the cleaning fluid that is made into by described passivation cleaning agent and described water filters by getting to equipment top to be cleaned after adding the agent pump through the sintered plate filter, the described agent pump discharge that adds connects two pipelines, article one, on the pipeline outlet valve is housed, outlet valve connects petrochemical equipment to be cleaned through pipeline, flow control valve is housed on another pipeline is used for regulating the described agent delivery side of pump flow that adds;
Return duct is equipped with on liquid pool top at described skid-mounted type dosing tank car, at described return duct online PH meter and real time temperature monitoring meter are installed, at described return duct front end sample tap and valve are housed, be used for timing sampling, analyze degree of cleaning and concentration of lotion according to institute's sample thief, whether thereby judge whether need to add the passivation cleaning agent and clean fully, described return duct is connected to the bottom of described petrochemical equipment to be cleaned by pipeline.
The present invention also provides the method that adopts above-mentioned ferrous sulfide and hydrogen sulfide Cleaning and Passivation device Cleaning and Passivation petrochemical equipment, and it comprises:
The first step, preparation passivation cleaning fluid;
Second step adds entry in described petrochemical equipment to be cleaned, discharge the H 2 S-containing gas in the described equipment;
The 3rd step entered in the liquid pool of described skid-mounted type dosing tank car the H 2 S-containing gas of discharge, and is emptying after treatment;
The 4th step, in described petrochemical equipment to be cleaned, supply the described passivation cleaning fluid for preparing, soak;
In the 5th step, described passivation cleaning fluid is circulated in described ferrous sulfide and H 2 S-containing gas Cleaning and Passivation device and described petrochemical equipment to be cleaned;
In the 6th step, pH value and the temperature of the described passivation cleaning fluid of implementing monitoring judge whether to stop cleaning or adding the passivation cleaning agent;
The 7th step, reclaim the passivation cleaning fluid, clean described ferrous sulfide and H 2 S-containing gas Cleaning and Passivation device.
Described method further comprises:
The first step by described passivation cleaning agent feeding mechanism and described the water supply described passivation cleaning agent of dispensing and described water in the liquid pool of described skid-mounted type dosing tank car, forms the passivation cleaning fluid in described liquid pool;
Second step adds entry and fills in described petrochemical equipment to be cleaned, the H 2 S-containing gas when adding the entry filling in the equipment can be driven out of by water;
In the 3rd step, the stink damp that described second step is discharged is known from experience from described exhaust-gas treatment pipeline in gas distributor enters described dosing tank car, and gas directly enters in the air after high concentration passivation cleaning fluid is processed;
The 4th step, open described agent pump discharge valve and the described agent pumping source that adds of adding, described passivation cleaning fluid is delivered to the described agent pump that adds and is then entered in the petrochemical equipment to be cleaned after described sintered plate filter filters, close subsequently described agent pump and the described outlet valve of adding, and soaks;
The 5th step, soak and finish rear described agent pump and the described outlet valve of adding of opening, open the valve of described petrochemical equipment to be cleaned bottom, open online PH meter and described real time temperature monitoring meter on the described return duct, described passivation cleaning fluid circulates in described skid-mounted type dosing tank car and petrochemical equipment to be cleaned, comes the controlled circulation amount with the described agent pump discharge control valve that adds;
The 6th step, the sample tap sample analysis from the described return duct regularly, colorimetric cooperates online PH meter and real time temperature monitoring meter to judge the Cleaning and Passivation situation, thereby selects to add the passivation cleaning agent or determine whether that cleaning is complete;
The 7th step, cleans and from the dosing tank car, the passivation cleaning fluid that refluxes is collected, processed after complete, disconnect temporary track and exhaust-gas treatment pipeline before and after the described skid-mounted type dosing tank car, water cleans described skid-mounted type dosing tank car and adds the agent pump, finishes Cleaning and Passivation.
The present invention also provides above-mentioned ferrous sulfide and the application of H 2 S-containing gas Cleaning and Passivation device in the petrochemical equipment cleaning process.
The technique effect that the present invention is useful is:
With respect to prior art, Cleaning and Passivation device of the present invention can wash ferrous sulfide and the hydrogen sulfide containing gas that adheres in the chemical industry equipment more rapidly and effectively, device is with online pH value detection, temperature detection and add the agent pump and be integrated on the skid-mounted type dosing tank car, realized that batching, detection, hydrogen sulfide containing gas treatment and filtering function are in one, faster and more convenient operation, thus the danger in the cleaning process reduced.
Description of drawings
Fig. 1 is ferrous sulfide of the present invention and hydrogen sulfide Cleaning and Passivation device and chemical industry equipment johning knot composition the time to be cleaned;
Among the figure: 1-skid-mounted type dosing tank car; 2-passivation cleaning agent feeding mechanism; The 3-water supply; The 4-gas distributor; 5-sintered plate filter; The 6-petrochemical equipment; 7-adds the agent pump; The 8-outlet valve; The 9-flow control valve; The 10-return duct; The online PH meter of 11-; 12-real time temperature monitoring meter; The 13-sample tap; The 14-valve.
The specific embodiment
The invention provides a kind of novel ferrous sulfide and H 2 S-containing gas Cleaning and Passivation device, it comprises: skid-mounted type dosing tank car, passivation cleaning agent feeding mechanism, water supply, gas distributor and sintered plate filter, described passivation cleaning agent feeding mechanism is connected with described skid-mounted type dosing tank car by pipeline with water supply, and being used for provides passivation cleaning agent and water to the liquid pool of described skid-mounted type dosing tank car.
The passivation cleaning agent generally is the composition that suitably adds again passivator in the chemical, and prescription adds the active ingredients such as alkali, chelating agent, corrosion inhibiter, passivator mainly by surfactant, has very strong water-soluble and decomposability.The effect of surfactant is to reduce surface tension of liquid, has a series of surface-active actions such as producing moistening, infiltration, decontamination and foaming, and the greasy dirt of equipment surface and the dirty grain of solid are entered in the cleaning fluid.Chelating agent is mainly used to the iron oxide and the sulphur that make ferrous sulfide be converted into solubility, and the release of hydrogen sulfide is reduced.The effect of alkali generally is degreasing.Corrosion inhibiter can be protected equipment surface, makes it exempt from dielectric corrosion.Passivator then can reduce the electro-chemical activity of iron on the equipment material; its surface is changed and passivation, form diaphragm, suppress preferably the anode reaction of dissolved ferric iron; re-use the generation of Sulfur During Process ferrous iron after minimizing equipment cleans, play the protective effect to equipment.
The mass percentage concentration 10% ~ 60% of passivation cleaning agent in the passivation cleaning fluid that is made into by passivation cleaning agent and water.
Described gas distributor is positioned at one side, bottom of the liquid pool of described skid-mounted type dosing tank car, the external pipe of described gas distributor is connected to the top of petrochemical equipment to be cleaned by the exhaust-gas treatment pipeline, the body height of the external pipe of described gas distributor will surpass skid-mounted type liquid pool height, refluxes when preventing from passivation cleaning agent or water are arranged in the tank car.
Return duct is equipped with on liquid pool top at described skid-mounted type dosing tank car, at described return duct online PH meter and real time temperature monitoring meter are installed, at described return duct front end sample tap and valve are housed, be used for timing sampling, analyze degree of cleaning and concentration of lotion according to institute's sample thief, whether thereby judge whether need to add the passivation cleaning agent and clean fully, described return duct is connected to the bottom of described petrochemical equipment to be cleaned by temporary pipeline.
Described sintered plate filter bits is in the another side of the liquid pool bottom of described skid-mounted type dosing tank car, described sintered plate filter is connected to by pipeline and adds the agent pump, the cleaning fluid that is made into by described passivation cleaning agent and described water filters by getting to equipment top to be cleaned after adding the agent pump through the sintered plate filter, the described agent pump discharge that adds connects two pipelines, article one, on the pipeline outlet valve is housed, outlet valve connects petrochemical equipment to be cleaned through temporary pipeline, flow control valve is housed on another pipeline is used for regulating the described agent pump discharge flow that adds, thereby controlled circulation speed, increase cleaning fluid and equipment time of contact, take full advantage of the passivation cleaning agent.
The present invention also provides a kind of novel ferrous sulfide and H 2 S-containing gas Cleaning and Passivation device, and it comprises: skid-mounted type dosing tank car, passivation cleaning agent feeding mechanism, water supply, gas distributor and sintered plate filter;
Described passivation cleaning agent feeding mechanism is connected by the liquid pool of pipeline with described skid-mounted type dosing tank car with described water supply;
Described gas distributor is positioned at one side, bottom of the liquid pool of described skid-mounted type dosing tank car, the external pipe of described gas distributor is connected to the top of petrochemical equipment to be cleaned by the exhaust-gas treatment pipeline, the body height of the external pipe of described gas distributor will surpass skid-mounted type liquid pool height, refluxes when preventing from passivation cleaning agent or water are arranged in the tank car;
Described sintered plate filter bits is in the another side of the liquid pool bottom of described skid-mounted type dosing tank car, it is connected to by pipeline and adds the agent pump, the cleaning fluid that is made into by described passivation cleaning agent and described water filters by getting to equipment top to be cleaned after adding the agent pump through the sintered plate filter, the described agent pump discharge that adds connects two pipelines, article one, on the pipeline outlet valve is housed, outlet valve connects petrochemical equipment to be cleaned through temporary pipeline, flow control valve is housed on another pipeline is used for regulating the described agent pump discharge flow that adds;
Return duct is equipped with on liquid pool top at described skid-mounted type dosing tank car, at described return duct online PH meter and real time temperature monitoring meter are installed, at described return duct front end sample tap and valve are housed, be used for timing sampling, analyze degree of cleaning and concentration of lotion according to institute's sample thief, whether thereby judge whether need to add the passivation cleaning agent and clean fully, described return duct is connected to the bottom of described petrochemical equipment to be cleaned by temporary pipeline.
The present invention also provides the method that adopts above-mentioned ferrous sulfide and H 2 S-containing gas Cleaning and Passivation device Cleaning and Passivation petrochemical equipment, and it comprises:
The first step, preparation passivation cleaning fluid;
Second step adds entry in described petrochemical equipment to be cleaned, discharge the hydrogen sulfide gas in the described equipment;
The 3rd step entered in the liquid pool of described skid-mounted type dosing tank car the H 2 S-containing gas of discharge, and is emptying after treatment;
The 4th step, in described petrochemical equipment to be cleaned, supply the described passivation cleaning fluid for preparing, soaked 0 ~ 5 hour;
In the 5th step, described passivation cleaning fluid is circulated in described ferrous sulfide and H 2 S-containing gas Cleaning and Passivation device and described petrochemical equipment to be cleaned;
In the 6th step, pH value and the temperature of the described passivation cleaning fluid of implementing monitoring judge whether to stop cleaning or select to add the passivation cleaning agent;
The 7th step, reclaim the passivation cleaning fluid, clean described ferrous sulfide and H 2 S-containing gas Cleaning and Passivation device.
Described method further comprises:
The first step, by described passivation cleaning agent feeding mechanism and described the water supply described passivation cleaning agent of dispensing and described water in the liquid pool of described skid-mounted type dosing tank car, in described liquid pool, form the passivation cleaning fluid that the passivation cleaning agent accounts for 10 ~ 60% mass concentrations;
Second step adds entry and fills in described petrochemical equipment to be cleaned, the H 2 S-containing gas when adding the entry filling in the equipment can be driven out of by water;
In the 3rd step, the H 2 S-containing gas that described second step is driven out of can be from described exhaust-gas treatment pipeline in gas distributor enters described liquid pool, and gas directly enters in the air after high concentration passivation cleaning fluid is processed;
The 4th step, open described agent pump discharge valve and the described agent pumping source that adds of adding, described passivation cleaning fluid filters through described sintered plate filter, then delivers to the described agent pump that adds and then enters in the petrochemical equipment to be cleaned, close subsequently described agent pump and the described outlet valve of adding, soak;
The 5th step, soak and finish rear described agent pump and the described outlet valve of adding of opening, open the valve of described petrochemical equipment to be cleaned bottom, open online PH meter and described real time temperature monitoring meter on the described return duct, described passivation cleaning fluid circulates in described skid-mounted type dosing tank car and petrochemical equipment to be cleaned, comes the controlled circulation amount with the described agent pump discharge control valve that adds;
The 6th step, the sample tap sample analysis from the described return duct regularly, colorimetric cooperates online PH meter and real time temperature monitoring meter to judge the Cleaning and Passivation situation, thereby selects to add the passivation cleaning agent or determine whether that cleaning is complete;
The 7th step, cleans and from the dosing tank car, the passivation cleaning fluid that refluxes is collected, processed after complete, disconnect temporary track and exhaust-gas treatment pipeline before and after the described skid-mounted type dosing tank car, water cleans described skid-mounted type dosing tank car and adds the agent pump, finishes Cleaning and Passivation.
The present invention also provides above-mentioned ferrous sulfide and the application of H 2 S-containing gas Cleaning and Passivation device in the petrochemical equipment cleaning process.
Below adopt embodiment and accompanying drawing to describe embodiments of the present invention in detail, how the application technology means solve technical problem to the present invention whereby, and the implementation procedure of reaching technique effect can fully understand and implements according to this.
Fig. 1 has shown ferrous sulfide of the present invention and H 2 S-containing gas Cleaning and Passivation device and with to be cleaned, it comprises: skid-mounted type dosing tank car 1, passivation cleaning agent feeding mechanism 2, water supply 3, gas distributor 4 and sintered plate filter 5; Passivation cleaning agent feeding mechanism 2 is connected by the liquid pool of pipeline with skid-mounted type dosing tank car 1 with water supply 3; Gas distributor 4 is positioned at one side, bottom of the liquid pool of skid-mounted type dosing tank car 1, the external pipe of gas distributor 4 is connected to the top of petrochemical equipment to be cleaned 6 by the exhaust-gas treatment pipeline, the body height of the external pipe of gas distributor 4 will surpass skid-mounted type dosing tank car 1 height, refluxes when preventing from passivation cleaning agent or water are arranged in the tank car; Sintered plate filter 5 is positioned at the another side of the liquid pool bottom of skid-mounted type dosing tank car 1, it is connected to by pipeline and adds agent pump 7, add 7 outlets of agent pump and connect two pipelines, article one, on the pipeline outlet valve 8 is housed, outlet valve 8 connects petrochemical equipment 6 to be cleaned through temporary pipeline, flow control valve 9 is housed on another pipeline is used for regulating the rate of discharge that adds agent pump 7; Return duct 10 is equipped with on liquid pool top at described skid-mounted type dosing tank car 1, at described return duct online PH meter 11 and real time temperature monitoring meter 12 are installed, at described return duct front end sample tap 13 and valve 14 are housed, be used for timing sampling, described return duct 10 is connected to the bottom of described petrochemical equipment 6 to be cleaned by temporary pipeline.
When adopting device of the present invention to clean petrochemical equipment, at first, by described passivation cleaning agent feeding mechanism 2 and described water supply 3 dispensing passivation cleaning agent and water in the liquid pool of described skid-mounted type dosing tank car 1, in described liquid pool, form the passivation cleaning fluid of 30% mass concentration; Add entry in the petrochemical equipment to be cleaned 6 and fill, the hydrogen sulfide gas in the equipment is discharged from; The stink damp that is discharged from is known from experience from described exhaust-gas treatment pipeline in gas distributor 4 enters described liquid pool, and gas directly enters in the air after high concentration passivation cleaning fluid is processed; Unlatching adds agent pump 7 outlet valves 8 and adds agent pump 7 power supplys, and the passivation cleaning fluid filters and delivers to the described agent pump 7 that adds through sintered plate filter 5 and then enters in the petrochemical equipment to be cleaned 6, closes subsequently to add agent pump 7 and outlet valve 8, soaks 2 hours; Unlatching adds agent pump 7 and outlet valve 8 after soaking end, open the valve of petrochemical equipment 6 bottoms to be cleaned, open online PH meter 11 and real time temperature monitoring meter 12 on the return duct 10, described passivation cleaning fluid circulates in described skid-mounted type dosing tank car and petrochemical equipment to be cleaned, comes the controlled circulation amount with adding agent pump discharge control valve 9; The sample tap sample analysis from the return duct 10 regularly, colorimetric cooperates online PH meter 11 and real time temperature monitoring meter 12 to judge the Cleaning and Passivation situation, thereby select to add the passivation cleaning agent or determine whether clean complete; Clean and from the dosing tank car passivation cleaning fluid that refluxes is collected, processed after complete, disconnect described skid-mounted type dosing tank car 1 front and back temporary track and exhaust-gas treatment pipeline, water cleans described skid-mounted type dosing tank car 1 and adds agent pump 7, finishes Cleaning and Passivation.
This intellectual property of primary enforcement that all are above-mentioned is not set restriction this new product of other forms of enforcement and/or new method.Those skilled in the art will utilize this important information, foregoing be revised, to realize similar implementation status.But all modifications or transformation belong to the right of reservation based on new product of the present invention.
The above only is preferred embodiment of the present invention, is not to be the restriction of the present invention being made other form, and any those skilled in the art may utilize the technology contents of above-mentioned announcement to be changed or be modified as the equivalent embodiment of equivalent variations.But every technical solution of the present invention content that do not break away to any simple modification, equivalent variations and remodeling that above embodiment does, still belongs to the protection domain of technical solution of the present invention according to technical spirit of the present invention.
Claims (9)
1. a ferrous sulfide and H 2 S-containing gas Cleaning and Passivation device, it is characterized in that, comprise: skid-mounted type dosing tank car, passivation cleaning agent feeding mechanism and water supply, described passivation cleaning agent feeding mechanism is connected with described skid-mounted type dosing tank car by pipeline with water supply, and being used for provides passivation cleaning agent and water to the liquid pool of described skid-mounted type dosing tank car.
2. Cleaning and Passivation device as claimed in claim 1, it is characterized in that: described Cleaning and Passivation device also further comprises gas distributor and sintered plate filter.
3. Cleaning and Passivation device as claimed in claim 1 or 2, it is characterized in that: described gas distributor is positioned at one side, bottom of the liquid pool of described skid-mounted type dosing tank car, the external pipe of described gas distributor is connected to the top of petrochemical equipment to be cleaned by the exhaust-gas treatment pipeline, the body height of the external pipe of described gas distributor will surpass skid-mounted type liquid pool height, refluxes when preventing from the tank car cleaning fluid being arranged.
4. such as the described Cleaning and Passivation device of claims 1 to 3, it is characterized in that: return duct is equipped with on the liquid pool top at described skid-mounted type dosing tank car, at described return duct online PH meter and real time temperature monitoring meter are installed, at described return duct front end sample tap and valve are housed, be used for timing sampling, analyze degree of cleaning and concentration of lotion according to institute's sample thief, whether thereby judge whether need to add the passivation cleaning agent and clean fully, described return duct is connected to the bottom of described petrochemical equipment to be cleaned by pipeline.
5. such as the described Cleaning and Passivation device of claim 1 to 4, it is characterized in that: described sintered plate filter bits is in the another side of the liquid pool bottom of described skid-mounted type dosing tank car, described sintered plate filter is connected to by pipeline and adds the agent pump, the cleaning fluid that is made into by described passivation cleaning agent and described water filters by getting to equipment top to be cleaned after adding the agent pump through the sintered plate filter, the described agent pump discharge that adds connects two pipelines, article one, on the pipeline outlet valve is housed, outlet valve connects petrochemical equipment to be cleaned through temporary pipeline, flow control valve is housed on another pipeline is used for regulating the described agent pump discharge flow that adds.
6. a ferrous sulfide and hydrogen sulfide Cleaning and Passivation device is characterized in that, comprising: skid-mounted type dosing tank car, passivation cleaning agent feeding mechanism, water supply, gas distributor and sintered plate filter;
Described passivation cleaning agent feeding mechanism is connected by the liquid pool of pipeline with described skid-mounted type dosing tank car with described water supply;
Described gas distributor is positioned at one side, bottom of the liquid pool of described skid-mounted type dosing tank car, the external pipe of described gas distributor is connected to the top of petrochemical equipment to be cleaned by the exhaust-gas treatment pipeline, the body height of the external pipe of described gas distributor will surpass skid-mounted type liquid pool height, refluxes to prevent the tank car cleaning liquid inside;
Described sintered plate filter bits is in the another side of the liquid pool bottom of described skid-mounted type dosing tank car, it is connected to by pipeline and adds the agent pump, the cleaning fluid that is made into by described passivation cleaning agent and described water filters by getting to equipment top to be cleaned after adding the agent pump through the sintered plate filter, the described agent pump discharge that adds connects two pipelines, article one, on the pipeline outlet valve is housed, outlet valve connects petrochemical equipment to be cleaned through pipeline, flow control valve is housed on another pipeline is used for regulating the described agent delivery side of pump flow that adds;
Return duct is equipped with on liquid pool top at described skid-mounted type dosing tank car, at described return duct online PH meter and real time temperature monitoring meter are installed, at described return duct front end sample tap and valve are housed, be used for timing sampling, analyze degree of cleaning and concentration of lotion according to institute's sample thief, whether thereby judge whether need to add the passivation cleaning agent and clean fully, described return duct is connected to the bottom of described petrochemical equipment to be cleaned by temporary pipeline.
7. adopt the method for each described ferrous sulfide of claim 1 to 6 and H 2 S-containing gas Cleaning and Passivation device Cleaning and Passivation petrochemical equipment, it is characterized in that, comprising:
The first step, preparation passivation cleaning fluid;
Second step adds entry in described petrochemical equipment to be cleaned, discharge the H 2 S-containing gas in the described equipment;
The 3rd step entered in the liquid pool of described skid-mounted type dosing tank car the H 2 S-containing gas of discharge, and is emptying after treatment;
The 4th step, in described petrochemical equipment to be cleaned, supply the described passivation cleaning fluid for preparing, soak;
In the 5th step, described passivation cleaning fluid is circulated in described ferrous sulfide and H 2 S-containing gas Cleaning and Passivation device and described petrochemical equipment to be cleaned;
In the 6th step, pH value and the temperature of the described passivation cleaning fluid of implementing monitoring judge whether to stop cleaning or select to add the passivation cleaning agent;
The 7th step, reclaim the passivation cleaning fluid, clean described ferrous sulfide and H 2 S-containing gas Cleaning and Passivation device.
8. method as claimed in claim 7 is characterized in that, described each step is specially:
The first step, by described passivation cleaning agent feeding mechanism and described the water supply described passivation cleaning agent of dispensing and described water in the liquid pool of described skid-mounted type dosing tank car, in described liquid pool, form the passivation cleaning fluid that the passivation cleaning agent accounts for 10 ~ 60% mass concentrations;
Second step adds entry and fills in described petrochemical equipment to be cleaned, the stink damp cognition when adding the entry filling in the equipment is driven out of by water;
In the 3rd step, the H 2 S-containing gas that described second step is discharged can be from described exhaust-gas treatment pipeline in gas distributor enters described liquid pool, and gas directly enters in the air after high concentration passivation cleaning fluid is processed;
The 4th step, open described agent pump discharge valve and the described agent pumping source that adds of adding, described passivation cleaning fluid is delivered to the described agent pump that adds and is then entered in the petrochemical equipment to be cleaned after described sintered plate filter filters, close subsequently described agent pump and the described outlet valve of adding, and soaks 0 ~ 5 hour;
The 5th step, soak and finish rear described agent pump and the described outlet valve of adding of opening, open the valve of described petrochemical equipment to be cleaned bottom, open online PH meter and described real time temperature monitoring meter on the described return duct, described passivation cleaning fluid circulates in described skid-mounted type dosing tank car and petrochemical equipment to be cleaned, comes the controlled circulation amount with the described agent pump discharge control valve that adds;
The 6th step, the sample tap sample analysis from the described return duct regularly, colorimetric cooperates online PH meter and real time temperature monitoring meter to judge the Cleaning and Passivation situation, determines whether that cleaning is complete;
The 7th step, cleans and from the dosing tank car, the passivation cleaning fluid that refluxes is collected, processed after complete, disconnect temporary track and exhaust-gas treatment pipeline before and after the described skid-mounted type dosing tank car, water cleans described skid-mounted type dosing tank car and adds the agent pump, finishes Cleaning and Passivation.
9. each described Cleaning and Passivation device application in the petrochemical equipment cleaning process of claim 1 to 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103952657A (en) * | 2014-04-11 | 2014-07-30 | 中国石油化工股份有限公司 | Ferrous sulfide gas-phase passivation device |
| CN104003447A (en) * | 2014-04-11 | 2014-08-27 | 中国石油化工股份有限公司 | Ferrous sulfide gas phase passivation method |
| CN104003447B (en) * | 2014-04-11 | 2015-07-01 | 中国石油化工股份有限公司 | Ferrous sulfide gas phase passivation method |
| CN103983473A (en) * | 2014-04-29 | 2014-08-13 | 太仓远德环保科技有限公司 | A sampling device of a cleaning agent and a sampling method thereof |
| CN103983473B (en) * | 2014-04-29 | 2016-04-27 | 太仓远德环保科技有限公司 | A kind of cleaning agent sampler and sampling method thereof |
| CN112007418A (en) * | 2019-05-29 | 2020-12-01 | 台湾富士电子材料股份有限公司 | Chemical liquid purification device and purification method using same |
| US11541335B2 (en) | 2019-05-29 | 2023-01-03 | FUJIFILM Electronic Materials Taiwan Co., Ltd. | Chemical liquid purification apparatus and purification method using the same |
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