CN106582060A - Vapor phase cleaning system and method of propellant tank - Google Patents

Abstract

The invention discloses a vapor phase cleaning system and method of a propellant tank. The system is provided with a cleaning agent storage tank and a waste liquid treatment device. The waste liquid treatment device comprises an extraction device and a rectification device, wherein the extraction device and the rectification device are connected through a pipeline. The rectification device is connected with the cleaning agent storage tank through a pipeline; waste liquid is extracted through the extraction device and divided into a cleaning agent layer and a propellant layer, and the cleaning agent layer enters the rectification device to be purified and then enters the cleaning agent storage tank for recycling. The vapor phase cleaning system can be automatically controlled and is safe and reliable, the treating effects on the waste liquid and waste gas are good, a cleaning agent can be separated and recycled from the waste liquid and used repeatedly, the cost is saved, and the system is environmentally friendly and free of pollution.

Description

A kind of vapour phase cleaning system and method for propellant tank

Technical field

The invention belongs to clean field, specifically, it is related to a kind of vapour phase cleaning system and method for propellant tank.

Background technology

In space flight industry, propellant is essential, such as many with hydrazine (uns-dimethylhydrazine, anhydrous hydrazine, MMH) fuel Use as flying power, dinitrogen tetroxide etc. is used as oxidant, Hydrazine fuel and oxidant are stored in corresponding storage In case.Tank it is bulky, for example, one-level volume about 70m³, two grades of about 20m³；Simultaneously the complex structure of tank, has in casing The labyrinths such as anti-sloshing baffles, gusset plate, bracing wire, weld seam, the propellant of general filling is released in rear box internal face and internal structure Certain propellant and corrosion product are remained, it is prolonged using oxide also can be produced in tank, decompose Hydrazine fuel, drop The combustion efficiency of low Hydrazine fuel, therefore will carry out thoroughly cleaning before use or periodic detection every time.

Hydrazine (uns-dimethylhydrazine, anhydrous hydrazine, MMH) and the cleaning way of dinitrogen tetroxide tank are mainly adopted at present Fuel tank is soaked with finite concentration cleanout fluid.Originally acetic acid and sodium carbonate liquor etc., but the based cleaning liquid is adopted easily to tie Crystalline substance, easily forms residual, affects cleaning quality, therefore need to be cleaned with a large amount of distilled water, and needs hand inspection after cleaning is finished The cleanliness factor of inwall after cleaning, operational danger is higher.In addition, the water remained after the completion of tank body cleaning has boiling point height, specific heat The characteristics of big with heat of vaporization, it is difficult to be completely dried；The water capacity of residual is easily combined with the dinitrogen tetroxide remained in oxidant tank body Dust technology is formed, serious corrosiveness is produced to tank body material, the life-span for affecting product even produces accident potential.

Therefore, technical staff develops the scavenger specially for cleaning propellant tank, with hydrazine or dinitrogen tetroxide Without violent chemical reaction, and can dissolve each other, increase in safety, but the method yet suffers from defect：On the one hand specially Consumption with cleanout fluid is big, high cost, and subsequent treatment difficulty is big, the time is long, and another aspect tank inside fine structure has been difficult to All clear wash clean, tack is stronger, and cleaning is incomplete.Meanwhile, the fuel and oxidant of propellant tank memory storage be it is poisonous, Volatile substances, once being discharged in the air of working area, not only influence whether the personal safety of operator and the peace of equipment Entirely, can also be to working area environment.The propulsion dosage being discharged in the air of working area is reduced to avoid and trying one's best, to pushing away Entering the cleaning process of agent basin should select closed cleaning.Conventional clean mode is cleaned using artificial operation, is checked cleaning effect Really, it is unfavorable for that operator's is healthy, there is potential safety hazard.Simultaneously manually-operated effect cannot Precision criterion, clearly Wash result usually because the experience of operator, be responsible for degree and it is different, result in inspection workload increase and clean assert hardly possible Degree.

Accordingly, it would be desirable to it is a kind of closed, safely and effectively, the more preferable automatic cleaning system of cleaning performance.Application No. 201110414494.4 Chinese patent disclose a kind of Full-automatic sealed cleaning device, including casing and control cleaning device it is complete The PLC control modules of automatic running, are provided with cleaning case, the reserving liquid tank of storage cleanout fluid of cleaning container in the casing, its Middle cleaning case is connected by pipeline with reserving liquid tank, and described cleaning case one end is opening end, and the other end is blind end, is set on opening end Hermatic door is equipped with, the hollow playpipe coaxial with cleaning case axial line, playpipe pipe are provided with blind end inside cleaning case Liquid outlet is provided with wall, playpipe is connected in blind end junction with feed tube.Although the technology employs all-sealed structure, Automatic washing process is realized, but still by the way of immersion, therefore the consumption of cleanout fluid is big, high cost, subsequent treatment Difficulty is big, the time is long, and tank inside fine structure is difficult to clean up completely, and tack is stronger, and cleaning is incomplete.

In view of this it is special to propose the present invention.

The content of the invention

The technical problem to be solved in the present invention is to overcome the deficiencies in the prior art, there is provided a kind of vapour phase of propellant tank Purging system, for cleaning propellant tank.The devil liquor recovery processing meanss of the present invention, can automatically control, safe and reliable, waste liquid High treating effect, can separate and recover abluent from waste liquid, repeatedly use, cost-effective, environmentally friendly pollution-free.

To solve above-mentioned technical problem, the present invention is using the basic conception of technical scheme：

The first object of the present invention is a kind of vapour phase cleaning system of propellant tank, is provided with abluent tank, including useless Liquid processing device, the liquid waste treating apparatus include the extraction equipment and rectifier unit through pipeline connection, the rectifier unit It is connected with abluent tank by pipeline；The waste liquid is extracted through extraction equipment, is divided into cleaning oxidant layer and propellant layer, described Cleaning oxidant layer enters rectifier unit and enters abluent tank after purification, recycles.

Further, the lower part outlet of the extraction equipment is connected by pipeline with the import of rectifier unit.

Further, the extraction equipment includes single extraction device and reextraction device, under single extraction device Portion's outlet is connected with the import of reextraction device, and the lower part outlet of reextraction device passes through the import of pipeline and rectifier unit Connection.

Further, also including neutralization reaction device, the outlet of the extraction equipment is connected with neutralization reaction device, described Propellant layer in extraction equipment is neutralized after process into neutralization reaction device and discharges.

Further, the port of export of the neutralization reaction device is connected by pipeline with entrance point, and the pipeline is provided with pH Detection means, electrodynamic valve and dosing pump, for carrying out secondary neutralization reaction.

Further, also including waste collection tank and water supply, the import of the waste collection tank and propellant receptacle Case connects, and the outlet of waste collection tank is connected by pipeline with extraction equipment；The water supply is by pipeline and extraction dress Connection is put, for providing extractant；The pipeline is provided with dosing pump.

Further, the pipeline between extraction equipment and rectifier unit is provided with surge tank, for collecting extract.

Further, including emission-control equipment, the emission-control equipment is connected by pipeline with the top of extraction equipment.

The second object of the present invention is to provide a kind of vapour phase cleaning system using described propellant tank and is cleaned The method of agent liquid waste processing, it is characterised in that include：

(1) extract and separate：Cleaning waste liquid enters extraction equipment, extracts, and is divided into cleaning oxidant layer and propellant layer；

(2) rectification purification：The extract of cleaning oxidant layer carries out purification into rectifier unit, into abluent tank, in case Secondary returning is used.

Further, including：

(1) extract and separate：Dosing pump is opened, respectively conveying cleaning waste liquid and water from waste collection tank and water supply To single extraction device, hybrid extraction is carried out, after stratification, propellant layer extract is delivered to reextraction device, secondary After extraction, propellant extract is delivered to surge tank；The aqueous solution of propellant layer is delivered to neutralization reaction device after extracting twice, Reaction is neutralized, qualified rear discharge is detected.

(2) rectification purification：Extract in surge tank is delivered to rectifier unit, and the abluent after isolating and purifying enters cleaning Agent tank, in case secondary returning is used.

After above-mentioned technical proposal, the present invention has the advantages that compared with prior art：

(1) the vapour phase cleaning system of propellant tank of the invention, can automatically control, safe and reliable, can be kept completely separate Propellant and abluent, are respectively processed after separation, and liquid waste processing works well.

(2) after abluent of the invention and propellant are separated and recovered, qualified abluent can carry out secondary utilization, save into This, it is environmentally friendly pollution-free.

(3) propellant tank is cleaned using abluent steam, the cleaning to propellant tank is more complete, cleaning effect Fruit is more preferably；Meanwhile, the consumption of abluent is little, cost-effective.

The specific embodiment of the present invention is described in further detail below in conjunction with the accompanying drawings.

Description of the drawings

, used as the part of the present invention, for providing further understanding of the invention, the present invention's is schematic for accompanying drawing Embodiment and its illustrate for explaining the present invention, but do not constitute inappropriate limitation of the present invention.Obviously, drawings in the following description Only some embodiments, to those skilled in the art, on the premise of not paying creative work, can be with Other accompanying drawings are obtained according to these accompanying drawings.In the accompanying drawings：

Fig. 1 is the vapour phase cleaning system structure and schematic flow sheet of propellant tank of the present invention；

Fig. 2 is the structural representation of abluent steam raising plant of the present invention；

Fig. 3 is devil liquor recovery processing system structure of the present invention and schematic flow sheet；

Fig. 4 is tool structure schematic diagram of the present invention；

Fig. 5 is the top view of tool structure；

Fig. 6 is the A-A profiles of tool structure；

Fig. 7 is the B-B profiles of tool structure；

Fig. 8 is the C-C profiles of tool structure.

In figure：1 propellant tank, 2 abluent tanks, 3 abluent steam raising plants, 4 conveyer devices, 5 cooling systems, 6 tool structures, 7 nitrogen heating systems, 8 devil liquor recovery processing systems, 9 concentration detection systems, 10 exhaust treatment systems, 101 add Thermal, 102 heat-exchanger rigs, 103 temperature sensors, 104 pressure transducers, 105 first control valves, 106 liquid level sensors, 107 abluent steam (vapor) outlets, 108 abluent imports, 109 heat exchanger tubes, 110 heat transferring medium steam (vapor) outlets, 111 water return outlets, 112 change Thermal medium steam inlet, 113 condensation-water drains, 114 second control valves, 115 the 3rd control valves, 116 lower perforated plates, 117 upper perforated plates, 201 waste collection tanks, 202 water supplies, 203 single extraction devices, 204 reextraction devices, 205 surge tanks, 206 neutralizations Reaction unit, 207 rectifier units, 208 alkali dose-storage casees, 209 dosing pumps, 210pH detection means, 211 emission-control equipments, Push up on 301,302 side walls, 303 fluid inlets, 304 fluid issuings, 305 heat transfer spaces, 306 reinforcement structures.

It should be noted that these accompanying drawings and word description are not intended as limiting the design model of the present invention by any way Enclose, but be that those skilled in the art illustrate idea of the invention by reference to specific embodiment.

Specific embodiment

To make purpose, technical scheme and the advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention In accompanying drawing, the technical scheme in embodiment is clearly and completely described, following examples be used for illustrate the present invention, but It is not limited to the scope of the present invention.

In describing the invention, it should be noted that term " on ", it is D score, "front", "rear", "left", "right", " perpendicular Directly ", the orientation or position relationship of the instruction such as " interior ", " outward " is based on orientation shown in the drawings or position relationship, merely to just In description the present invention and simplify description, rather than indicate or imply indication device or element must have specific orientation, with Specific azimuth configuration and operation, therefore be not considered as limiting the invention.

In describing the invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase Company ", " connection " should be interpreted broadly, for example, it may be being fixedly connected, or being detachably connected, or be integrally connected；Can Being to be mechanically connected, or electrically connect；Can be joined directly together, it is also possible to be indirectly connected to by intermediary.For this For the those of ordinary skill in field, above-mentioned term concrete meaning in the present invention can be understood with concrete condition.

Vapour phase cleaning is using having strong dissolving removal ability and the not low boiling of damaging substrate material to greasy dirt, debris Point solvent is cleaned in special vapour phase cleaning machine as abluent to various objects to be washed.Its principle be under heating, Low boiling abluent is vaporized, and steam runs into object to be washed when rising, using steam washing away, condensing etc. and act on oil to object Dirt remove simultaneously, abluent steam can effectively cut any tiny hole and crack, peel off and remove spot therein and Residue, cleaning performance completely, works well.General vapour phase cleaning machine is used to clean industrial part etc., can not be used for clear Wash propellant tank.

Propellant tank is used to contain fuel (uns-dimethylhydrazine, anhydrous hydrazine, MMH) or oxidant (four oxidations two Nitrogen) etc., and the temperature that can be born is less than 40 DEG C, and therefore the water vapour cleaning of general High Temperature High Pressure or cleans Agent steam, water and the cleaning way of common cleanout fluid mixed vapour, can not be applied to the cleaning of propellant tank, while water Also easily produce with propellant and react, cause the corrosion of tank.

The application is realized to the strict control of abluent vapor (steam) temperature in cleaning process, and abluent steam can dissolve Attachment in tank everywhere；And abluent is completely isolated with water vapour, water vapour only carries out heating vaporization to abluent, and Propellant tank can not be entered, it is to avoid the untoward reaction of water and propellant；It is simultaneously for maximum restriction that abluent steam is cold It is solidifying, good scouring effect is realized, the application arranges cooling system outside propellant tank, and abluent steam is cooled down, The dynamic translation of vehicle repair major is further realized, the dynamic equilibrium of the vehicle repair major of abluent is reached, with reference to steam state abluent to each The solute effect of individual subtlety and the scouring effect of liquid cleaner, reach optimal cleaning performance.

The abluent of the present invention is the propellant tank scavenger specially of exploitation, both can be compatible with propellant one-level, is not produced Biochemical reaction, it is to avoid produce new chemical product, while physical characteristics are applied to produces abluent steam for propellant receptacle Case is cleaned.The boiling point of the abluent of the present invention is higher than room temperature, can prevent from being vaporized during storage, and less than propellant tank Highest bearing temperature, can produce the abluent steam applied in propellant tank, the abluent performance parameter row of the present invention In table 1.

The abluent performance parameter of table 1

Embodiment one

As shown in figure 1, the present embodiment provides a kind of vapour phase cleaning system of propellant tank, including for storing abluent Abluent tank 2, abluent steam raising plant 3, conveyer device 4 and cooling system 5, wherein, the input of conveyer device 4 It is connected with abluent tank 2, the outfan of conveyer device 4 is connected with abluent steam raising plant 3, the abluent steam is sent out The outfan of generating apparatus 3 is connected with propellant tank 1, and the propellant tank 1 is provided with the cooling for cooling down abluent steam System 5.

The present embodiment vapour phase cleaning system, vapour phase cleaning is applied in propellant tank.Abluent tank is used to store Liquid ceanser, conveyer device can be delivery pump or elevator pump etc., can be delivered to liquid ceanser from abluent tank Abluent steam raising plant, produces abluent steam, and abluent steam is entered in propellant tank, cleaned.Abluent Steam is softened, is expanded, is separated, is dissolved to the spot of surface to be cleaned, can effectively be cut any tiny hole and be split Seam, cleaning performance is complete.

In addition, the conveyer device 4 can also have the second outfan that a propellant tank 1 is connected.So convey Liquid ceanser in abluent tank directly can also be delivered to propellant tank by device, and liquid ceanser directly washes away and pushes away Enter agent tank inwall, line replacement cleaning is entered to propellant tank, it is possible to increase cleaning efficiency.

Propellant tank is provided with the cooling system for cooling down abluent steam, is preferably provided at the upper of propellant tank End, cools down to the abluent steam at the top of propellant tank, and then guarantees that steam state abluent persistently liquefies in tank, edge The structures such as wall, bracing wire, weld seam are washed away to going to the bottom, and realize good scouring effect.So, it is ensured that vapour during steam clean, Liquid is biphase to realize dynamic equilibrium, and the scouring effect of the solute effect of steam state abluent and liquid cleaner is combined, to propulsion The cleaning of agent tank is more complete, and cleaning performance is more preferably；Meanwhile, the consumption of abluent is little, cost-effective.

Further scheme, the abluent steam raising plant 3 is included the heater 101 connected by pipeline and is changed Heat transferring medium is set in thermal 102, heater 102, and the propellant tank 1 is connected by pipeline with heat-exchanger rig 102； The heater 101 is used to heat heat transferring medium generation heat transferring medium steam, and heat transferring medium steam is entered in heat-exchanger rig 102 With liquid ceanser heat exchange, abluent steam is produced.

Wherein, heater can be electric heater etc., and heat transferring medium steam is water vapour, clear to liquid using water vapour Lotion carries out isolation heating, both can realize for abluent being changed into abluent steam, and water and abluent steam can be isolated again, prevents Sealing steam enters propellant tank, it is to avoid the untoward reaction of water and propellant.

Heat-exchanger rig can be dividing wall type heat exchanger, it is possible to further for shell-and-tube heat exchanger.Water vapour is by heat exchange The shell side of device, liquid ceanser enters the tube side of heat exchanger, and the steam inlet of heat exchanger is entered after the heated device heating of water vapour Into the shell side of heat exchanger, water vapour passes to heat after material by hot-water outlet conduits' Jing pumps pressurization entrance heating again of bottom Device is heated, and repetitive cycling is utilized.

Further scheme, temperature of the liquid ceanser Jing after the heating of heat-exchanger rig 102 is set as 30～40 DEG C.Combustion The azeotropic point of material abluent or oxidant abluent is 30～35 DEG C, and the temperature that propellant tank can bear is less than 40 DEG C. At a set temperature, abluent can be converted into steam, while and without compromising on propellant tank.Therefore design temperature needs height In 30 DEG C, less than 40 DEG C.

Further scheme, the cooling system includes tool structure 6, and the tool structure 6 is arranged on propellant tank 1 End, forms fluid circulation space, by the flowing of fluid to propellant tank 1 between pushing up on tool structure 6 and propellant tank 1 Heat exchange cooling.

The cooling system of propellant tank can adopt water-cooled or air-cooled.The present invention needs cooling in propellant tank Position arranges a tool structure, and the flowing space of cold wind is formed between pushing up on tool structure and propellant tank, cold for circulating But the cold wind of system, is cooled down by the flowing of cold wind to propellant tank heat exchange.The tool structure is simple, it is easy to dismounting and peace Dress, more realizes the cooling of propellant tank.

Embodiment two

As shown in figure 1, the present embodiment is the further restriction of embodiment one, vapour phase cleaning system is additionally provided with nitrogen heating system System 7, including nitrogen heater, and be connected with the import of propellant tank by pipeline, for the propellant after purging cleaning Tank.

Propellant tank after abluent steam clean, has the residual of abluent liquid, typically can be entered using nitrogen Row purging, the present embodiment is passed through the nitrogen after heating and can more quickly dry up propellant receptacle chamber interior wall, improves cleaning performance.Its In, the heating of nitrogen can be realized by explosion-proof nitrogen heater, meanwhile, nitrogen can also provide source of the gas for each valve.

Further scheme, vapour phase cleaning system is additionally provided with devil liquor recovery processing system 8 and exhaust treatment system 10, described Devil liquor recovery processing system 8 includes waste collection tank 201 and liquid waste treating apparatus, the waste collection tank 201 by pipeline with The outlet connection of propellant tank 1, the liquid waste treating apparatus are connected with waste collection tank 201, for being separated and recovered from propulsion Agent and abluent；The exhaust treatment system 10 is connected with the outlet of propellant tank 1.

The vapour phase cleaning system of this programme is recycled to cleaning waste liquid, waste gas is discharged after processing, on the one hand Discharge after harmful gas and liquid are processed, be conducive to environmental protection, it is to avoid toxic action is produced to staff；Separately On the one hand abluent can be separated and purification with propellant, abluent is reclaimed, qualified abluent can be more It is secondary to recycle, it is cost-effective.

Further scheme, vapour phase cleaning system is additionally provided with concentration detection system 9, including being arranged in propellant tank Sample lines and the sensor of sample lines connection, for on-line checking propellant concentration and detergent concentration.

Sample lines take steam and fluid sample in propellant tank, sensor to be used for real-time online and detect propellant Signal is simultaneously fed back to control system by concentration and detergent concentration, to reach optimal cleaning effect.

Further scheme, is additionally provided with for the observing and controlling system of the closed vapour phase cleaning system of integrated control in vapour phase cleaning system System, is provided with multiple sensors, including temperature sensor, pressure transducer, flow transducer, liquid level in the vapour phase cleaning system Sensor and concentration sensor etc., are equipped with valve on the pipeline of each connection, the TT＆C system respectively with each valve, each Sensor connects, and receives the signal of each sensor and the folding of respective line is controlled by control valve.

TT＆C system major function is that integrative display and control propellant tank clean each subsystem, it is ensured that cleaning is transported Row is normal.TT＆C system is connected with each sensor, valve, is judged by acceptance, analysis, makes a response to control respective tube The folding on road, realizes the Automatic Control of whole closed vapour phase cleaning system.

Embodiment three

The present embodiment provides a kind of method of utilization vapour phase cleaning cleaning systems propellant tank, comprises the following steps：

(1) abluent is delivered to abluent steam raising plant 3 by conveyer device 4, produces abluent steam；

(2) abluent steam carries out vapour phase cleaning into propellant tank 1 to it, meanwhile, abluent steam is in cooling system The lower liquefaction of the effect of system 5, it is dirty to wash away propellant receptacle chamber interior wall.

Conveyer device is opened, and the liquid ceanser in abluent tank is transported to into the abluent steam raising plant of unlatching In, produce abluent steam；Abluent steam enters the lower end of propellant tank, rises upwards, and into propellant tank Each position, meanwhile, abluent steam condenses under cooling system effect, liquefaction, then dirty to wash away propellant receptacle chamber interior wall. So carry out, abluent steam reaches dynamic equilibrium with the abluent of liquefaction, carries out vapour phase to each position of propellant tank clear Wash, cleaning is complete, better.Waste liquid after cleaning is processed into devil liquor recovery processing system.

Further scheme, also includes that the displacement carried out prior to vapour phase cleaning is cleaned, and described displacement cleaning includes following Step：Liquid ceanser in abluent tank is fed directly to propellant tank, liquid ceanser by described conveyer device Directly wash away propellant receptacle chamber interior wall.Abluent is fed directly to into propellant tank using delivery pump, after certain hour, is opened The tapping valve of propellant tank, is emitted into the abluent for carrying propellant in waste collection tank using reflux pump,.

Further scheme, using the method for vapour phase cleaning cleaning systems propellant tank, comprises the following steps：

(1) displacement cleaning：Conveyer device is opened, the liquid ceanser in abluent tank is delivered to into propellant tank, Waste collection tank is emitted into after certain hour；

(2) vapour phase cleaning：Conveyer device is opened, the liquid ceanser in abluent tank is delivered to into abluent steam and is sent out Generating apparatus, open abluent steam raising plant and produce abluent steam, and into propellant tank, propellant tank upper end passes through Cooling system is cooled down to abluent steam, and steam liquefied flows downward and washes away propellant receptacle chamber interior wall, is emitted into waste collection tank；

(3) purge：Nitrogen heating system is opened, the nitrogen after heating is delivered to propellant tank, and purging internal residual is clear Lotion, waste gas discharge to exhaust treatment system, concentration detection system on-line checking propellant concentration；

(4) wash result detection：Concentration detection system shows propellant concentration after cleaning, while being store using splanchnoscopy Chamber interior wall, inwall state before and after contrast cleaning, determines whether cleaning performance.

Example IV

As shown in Fig. 2 the present embodiment provides a kind of vapour phase cleaning system of propellant tank, abluent tank 2 is provided with, is wrapped The heater 101 and heat-exchanger rig 102 connected by pipeline is included, the one end of the heat-exchanger rig 102 is by pipeline and abluent Tank 2 connects, and the other end is connected by pipeline with propellant tank 1；The heater 101 is used to heat heat transferring medium generation Heat transferring medium steam, heat transferring medium steam is entered in heat-exchanger rig 102 and exchanged heat with liquid ceanser, produces abluent steam, clearly Lotion steam carries out vapour phase cleaning into propellant tank 1.

The present embodiment vapour phase cleaning system includes heater and heat-exchanger rig, wherein, heater is used for will heat exchange Medium reverts are heat transferring medium steam, and heat transferring medium can be water, and water vapour is converted in heater.Heater can be with Select electric heater, such as explosion-proof electric heating steam producer.Electric heater is connected with water pump, for being input into tap water, electricity Cool water heating is changed into water vapour by heater, is input in heat exchanger and liquid ceanser is heated.Into heat exchanger After water vapour heat exchange condensation, can be connected with steam generator through water return pipeline, form circulation and produce water vapour, energy again Enough using water wisely, reduce the impact to environment.The top of electric heater arranges relief valve, can drain into outdoor.

In heat-exchanger rig, liquid ceanser is converted into abluent steam, and water vapour is by the pipeline outside heat exchanger, warm The abluent that inside is conducted to by the wall of heat exchanger is measured, design temperature is heated to, abluent is converted into abluent steam, passes through Pipeline is entered in propellant tank and cleaned.In the process, water vapour is completely isolated with abluent, without mixing, water Steam can not enter propellant tank, it is to avoid the untoward reaction of water and propellant.

Further scheme, temperature of the liquid ceanser Jing after heat-exchanger rig heating is set as 30～40 DEG C.The present embodiment The fuel clean agent for using or the azeotropic point of oxidant abluent are 30～35 DEG C, propellant tank pressure-bearing design 0.4MPa, No more than 40 DEG C, the temperature of abluent steam can not be higher than 40 DEG C to cleaning temperature, in order to avoid propellant tank is caused damage. At a set temperature, abluent can be converted into steam, while and without compromising on propellant tank.Therefore design temperature needs height In 30 DEG C, less than 40 DEG C.

Embodiment five

As shown in Fig. 2 the present embodiment is the further restriction of enforcement four, the abluent steam output end of the heat-exchanger rig It is provided with temperature sensor 103, the heater 101 to the pipeline that heat-exchanger rig 102 is input into heat transferring medium steam is provided with the One control valve 105, the signal output part of the temperature sensor 103 is connected with the control end of the first control valve 105, the first control It is design temperature that valve control heat transferring medium steam flow to keep abluent steam according to the detected value of temperature sensor.

Temperature sensor on heat-exchanger rig, the temperature of the abluent steam that can be produced with real-time monitoring, and signal is passed To the first control valve.Wherein first control valve can be Full-automatic temp-control valve, and the Full-automatic temp-control valve can utilize PID control skill Art, real-time regulation flows into the uninterrupted of the water vapour in heat-exchanger rig, to ensure that the temperature of abluent steam (vapor) outlet is always Design temperature, temperature can set in advance as needed.Therefore, abluent steam generating system can strictly control the clear of generation The temperature of lotion steam, operating process is simple and easy to do, also improves the safety of cleaning process.

Temperature sensor and Full-automatic temp-control valve can be connected with TT＆C system, carry out real-time remote monitoring.Observing and controlling system Alarm device can be set, and when the temperature of temperature sensor monitors exceeds design temperature, alarm device is reported to the police, work people in system Member can make a response according to concrete situation, it is to avoid the generation of unexpected situation.

Further scheme, the abluent steam output end of the heat-exchanger rig 102 is provided with pressure transducer 104, described The top of heat-exchanger rig 102 is provided with abluent steam (vapor) outlet 107, the pipe that abluent steam (vapor) outlet 107 is connected with propellant tank 1 Road is provided with the control end of the second control valve 114, the signal output part of the pressure transducer 104 and the second control valve 114 and connects Connect, the second control valve 114 controls abluent steam flow and keeps abluent steam pressure according to the detected value of pressure transducer 104 Steadily.

Pressure transducer is capable of the pressure changing of real-time monitoring abluent steam (vapor) outlet, and signal is passed to into the second control Valve, the second control valve controls the valve opening size of abluent steam (vapor) outlet according to the detected value of pressure transducer, to ensure The pressure of abluent steam (vapor) outlet is steady.

Further scheme, is additionally provided with liquid level sensor 106, the bottom of the heat-exchanger rig 102 in the heat-exchanger rig 102 End is provided with abluent import 108, and the abluent import 108 is provided with the 3rd control valve with the connecting line of abluent tank 2 115, the signal output part of the liquid level sensor 106 is connected with the control end of the 3rd control valve 115, the 3rd 115, valve of control Control liquid rinse agent flux to ensure all steam of abluent steam (vapor) outlet according to the detected value of liquid level sensor.

Liquid level sensor can be float ball liquid level sensor on heat-exchanger rig, can not have in real-time monitoring heat exchanger exit The liquid level limit of the abluent of vaporization, can pass to the 3rd control valve by liquid level signal, and the 3rd control valve is according to liquid level sensor Detected value controls the switch degree of abluent imported valve, to ensure that abluent exports the steam after all vaporizations.

Further, it is additionally provided with the heat-exchanger rig 102 for the direct-reading level gauging of directly observation liquid level Device.The direct-reading liquid level emasuring device arranged on heat exchanger, can be gauge glass etc., and people can be allowed more intuitively to observe The liquid level of the liquid in heat exchanger and the degree of vaporization.

Further, the heat-exchanger rig includes shell, heat exchanger tube 109, upper perforated plate 117 and the down tube being arranged in shell The surrounding of plate 116, the upper perforated plate 117 and lower perforated plate 116 is located by connecting with shell, is equipped with upper perforated plate and lower perforated plate some Circular hole, the heat exchanger tube 109 is tightly connected through circular hole and with upper perforated plate and lower perforated plate；Between the upper perforated plate and lower perforated plate On shell, top is provided with heat transferring medium steam inlet 112, and bottom is provided with condensation-water drain 113.

Heat-exchanger rig is heat exchanger, can adopt dividing wall type heat exchanger, can further adopt shell-and-tube heat exchanger.Change Hot device includes that the fluid passage constituted in heat exchanger tube, heat exchanger tube is referred to as tube side, and the fluid passage constituted outside heat exchanger tube is referred to as shell side. When tube side and shell side pass through neither synthermal fluid respectively, the higher fluid of temperature transfers heat to temperature by the tube wall that exchanges heat The relatively low fluid of degree, the higher fluid of temperature is cooled, and the relatively low fluid of temperature is heated, and then realizes the mesh of two fluid heat transfers 's.

Upper perforated plate and lower perforated plate are used to fix heat exchanger tube, and play buffer action, form shell side and tube side two is mutually separated by From pipeline.Liquid ceanser is entered the bottom tube side of heat exchanger by material inlet；Water vapour enters the steam on heat exchanger top Import enters the shell side of heat exchanger, and water vapour transfers heat to liquid ceanser, and abluent is converted into abluent steam, cleaning Agent steam is exported from the upper cover of heat exchanger, completes generation, the output procedure of abluent steam.

Further, the heater 101 includes tank body and the heating arrangements being arranged in tank body, the tank body upper end Heat transferring medium steam (vapor) outlet 110 is provided with, lower end is provided with water return outlet 111；The heat transferring medium steam (vapor) outlet 110 passes through pipeline and changes The heat transferring medium steam inlet connection 112 of thermal, the water return outlet 111 is gone out by water return pipeline with the condensed water of heat-exchanger rig Mouth 113 connects.

The heat transferring medium steam (vapor) outlet of heater is connected with the heat transferring medium steam inlet on heat exchanger top, water return outlet with The condensation-water drain connection of heat exchanger bottom, after water vapour exchanges heat with abluent, condensed water is transmitted back to water vapour and sends out by force (forcing) pump Generating apparatus, form circulation line, can using water wisely, reduce impact to environment.

Embodiment six

The present embodiment provides a kind of method for producing abluent steam using the vapour phase cleaning system, and the method includes：

(1) heater 101 is opened, and produces heat transferring medium steam；

(2) liquid ceanser in abluent tank 2 respectively enters heat-exchanger rig 102 and is changed with heat transferring medium steam Heat, produces abluent steam；

(3) abluent steam is cleaned by heat-exchanger rig 102 into propellant tank 1.

Heater is steam generator, and heat-exchanger rig is heat exchanger.Steam generator produces water after opening Steam, water vapour enters the shell side of heat exchanger, and the liquid ceanser in abluent tank is delivered to the pipe of heat exchanger by delivery pump Journey, water vapour is exchanged heat with abluent, and liquid ceanser is converted into abluent steam；Abluent steam enters propellant tank Carry out vapour phase cleaning.During being somebody's turn to do, water vapour is completely isolated with abluent, and only abluent steam enters propellant tank, it is to avoid The untoward reaction of water and propellant.

Further, in the step (2), the temperature sensor detection abluent vapor (steam) temperature of heat-exchanger rig, by signal The first control valve being sent on heat transferring medium steam input heat-exchanger rig pipeline, the first control valve controls aperture to control to enter Heat transferring medium steam flow so that the temperature of abluent steam is maintained at the temperature of setting.Steamed by strict control abluent Stripping temperature, realizes the vapour phase cleaning to propellant tank.

Embodiment seven

The present embodiment is the further restriction of embodiment six, there is provided one kind produces abluent using the vapour phase cleaning system The method of steam, the method includes：

(1) steam generator is opened, and produces water vapour, and heat exchanger is opened, infusion fluid abluent；

(2) preset temperature of automatic temperature control valve is set, and steam generator to heat exchanger is input into water vapour, and liquid is clear Lotion is converted into abluent steam, and water vapour is changed into condensate return to steam generator；

(3) detect whether abluent vapor (steam) temperature meets preset temperature, automatic temperature control valve real-time regulation steam rates；

(4) heat-exchanger rig exports abluent steam to propellant tank, carries out vapour phase cleaning.

In step (1), steam generator is electric heater, and water pump is delivered to tap water in electric heater, and electricity adds Hot device unlatching work, plus hot tap-water generation water vapour.Heat-exchanger rig is heat exchanger, detects the liquid of liquid ceanser in heat exchanger tube Position, if being less than predetermined value, elevator pump is opened, the liquid make-up abluent in heat exchanger.

In step (2), according to actual needs, the preset temperature of automatic temperature control valve is set, less than 40 DEG C.In electric heater The water vapour of generation passes through steam outlet, steam pipework, into the water vapour import of heat exchanger, through the shell side of heat exchanger tube, Liquid ceanser in heating heat exchanger tube tube side, liquid ceanser is converted into abluent steam, and water vapour is changed into condensed water from cold Solidifying water out is back to electric heater by pipeline, recycles.

In step (3), the temperature of the temperature sensor monitors abluent steam (vapor) outlet of heat exchanger upper end, if meeting default temperature Degree, then abluent steam output, if being higher or lower than preset temperature, signal is fed back to after temperature-sensing valve, and temperature-sensing valve utilizes PID control Technology, the uninterrupted of real-time regulation water vapour, to ensure that the temperature of abluent steam (vapor) outlet is always design temperature.

The pressure transducer of heat exchanger upper end, the pressure changing of real-time monitoring abluent steam (vapor) outlet, as needed Signal is passed to into the second control valve, to control the valve opening size of abluent steam (vapor) outlet, it is ensured that abluent steam (vapor) outlet Pressure is steady.

The floating-ball level switch of heat exchanger upper end, the liquid level limit of the abluent without vaporization in real-time monitoring heat exchanger exit Degree, can pass to the 3rd control valve by liquid level signal as needed, with according to the switch degree of Liquid level abluent imported valve, To ensure that abluent exports the steam after all vaporizations.

Gauge glass on heat exchanger, can allow the liquid level and vapour of liquid that people more intuitively observed in heat exchanger The degree of change.

In step (4), the regulation of temperature, pressure in step (3), abluent steam meets design temperature, output Abluent steam is also steady, then by output pipe, in being transported to propellant tank, enter from the bottom of propellant tank, to It is upper soaring, cleaned, under cooling system effect, abluent steam liquefies in propellant tank upper part, washes away downwards The each several part of tank inwall, forms the biphase dynamic equilibrium of abluent steam and liquid, significantly so in propellant tank Improve cleaning performance.

Further, in the step (3), temperature sensor detection abluent vapor (steam) temperature is transmitted signals to certainly Dynamic temperature-sensing valve, if being higher than preset temperature, reduces steam rates, if being less than preset temperature, improves steam rates.

Embodiment eight

As shown in figure 3, the present embodiment provides a kind of vapour phase cleaning system of propellant tank, abluent tank 2 is provided with, is wrapped Include liquid waste treating apparatus, the liquid waste treating apparatus include through pipeline connection extraction equipment (203,204) and rectifier unit 207, the rectifier unit 207 is connected by pipeline with abluent tank 2；The waste liquid extracts through extraction equipment (203,204) Take, be divided into cleaning oxidant layer and propellant layer, the cleaning oxidant layer enters rectifier unit 207 and enters abluent tank 2 after purification, follows Ring is utilized.

Liquid waste treating apparatus be used for reclaim, separate and purification cleaning after waste liquid.Waste liquid is propellant and abluent Mixed liquor, propellant tank can be connected with waste collection tank.After cleaning propellant tank, waste liquid enters from propellant tank bottom Enter waste collection tank, complete the recovery of waste liquid.Extraction equipment can be turntable extracting tower, and rectifier unit can be rectifying column etc., Can according to place, be actually needed from different equipment, as long as its function can be realized.

Liquid waste treating apparatus are separated to waste liquid, qualified abluent after isolating and purifying, and can reuse carries out two Secondary tank cleaning.During produce waste gas discharged after harmless treatment, during produce waste water through process After discharge.Extraction equipment is propellant main device detached with abluent, and waste liquid enters extraction equipment, mixes with extractant, It is layered after stirring, standing, completes extraction process.Solution is divided into cleaning oxidant layer and propellant layer, the cleaning of the present embodiment after extraction The density of agent is more than the density of water, therefore when extractant is water, upper strata is propellant layer, and lower floor is cleaning oxidant layer.

The extractant of a small amount of dispersion phase can be remained in the extract of cleaning oxidant layer, needs Jing rectifier units to be isolated.Clearly The extract of lotion layer is entered after rectifier unit, and due to the low boiling point of abluent, the boiling point of extractant (such as water) is high, it is easy to rectification Isolate and purify.Abluent tank can be directly entered after abluent after isolating and purifying in rectifier unit is qualified after testing, be entered Row secondary cycle is utilized；Abluent recycling can also be entered, in case next time, cleaning was used.

Further, (203, lower part outlet 204) is connected the extraction equipment by pipeline with the import of rectifier unit 207 Connect.

The present embodiment adopts water as extractant, and the density of abluent is 1.23～1.30kg/L, more than the density of water. In extraction equipment, according to the position of the part of required recovery after layering, suitable outlet is set and is connected with rectifier unit.Propulsion In agent, fuel (anhydrous hydrazine, MMH, uns-dimethylhydrazine) or oxidant (dinitrogen tetroxide) are soluble in water, and abluent is not dissolved in Water, therefore after being layered, lower floor is abluent, upper strata is propellant and the mixed aqueous solution of water.Extract in extraction equipment point After layer, the extract containing abluent is located at lower floor, carries out rectification into rectifier unit from the lower part outlet of extraction equipment, further Isolate and purify.

Further scheme, the extraction equipment includes single extraction device 203 and reextraction device 204, once extracts The lower part outlet for taking device 203 is connected with the import of reextraction device 204, and the lower part outlet of reextraction device passes through pipeline It is connected with the import of rectifier unit 207.

After extraction, the extract of bottom can be again introduced into other extraction equipments and be extracted, and multitple extraction is reaching more Good effect of extracting, it is also possible to further separated into rectifier unit.Extraction equipment twice is set, after single extraction Bottom extract carry out reextraction, the extract purity after extracting twice is higher, and the propellant for mixing is less, separates Effect is more preferable.When one-level extraction or multitple extraction, it is also possible to arrange intermediate buffer, liquid to be extracted is collected after mixing, then Carry out rectification.

Embodiment nine

As shown in figure 3, the present embodiment is the further restriction of enforcement eight, and also including neutralization reaction device 206, the extraction Device (203, outlet 204) is connected with neutralization reaction device 206, the extraction equipment (203,204) in propellant layer enter Enter neutralization reaction device and be neutralized discharge after process.

Neutralization reaction device can be the devices such as neutralization reaction tower.Propellant in extraction equipment is converted into after being extracted by water Aqueous solution in certain acid or alkaline aqueous solution, rectifier unit is required to be neutralized process into neutralization reaction device, Discharged after detection is qualified.

Further scheme, the port of export of the neutralization reaction device 206 is connected by pipeline with entrance point, on the pipeline PH detection means 210, electrodynamic valve and dosing pump 209 are provided with, for carrying out secondary neutralization reaction.

The discharge pipe of neutralization reactor is provided with pH detection means, and neutralization reactor is additionally provided with reflux pipe, return duct Road is connected the port of export of neutralization reaction device with entrance point.Reflux pipe is provided with pH detection means, electrodynamic valve and metering Pump.When occurring situations such as mix uneven in neutralization reactor, pH detections are inaccurate, aqueous solution is likely to enter shape to be discharged State.Now, when solution enters discharge pipe, pH detections are unqualified, then into reflux pipe, entering back into neutralization reactor carries out two Secondary neutralization reaction, until detecting that rear up to standard can discharge.

Further scheme, also including waste collection tank 201 and water supply 202, the waste collection tank 201 enters Mouthful be connected with propellant tank 1, the outlet of waste collection tank 201 by pipeline and extraction equipment (203,204) connection；The water Feeding mechanism 202 by pipeline and extraction equipment (203,204) connect, for providing extractant；The pipeline is provided with metering Pump 209.

Adopt water supply that water is provided in extraction equipment for extractant, it is cheap, it is easy to process；Waste collection tank With the dosing pump on the connecting line of extraction equipment, the amount of the waste liquid being input into for metering；Water supply and extraction equipment Dosing pump on connecting line, for the amount of the tap water of metering input；Select the ratio of suitable water and waste liquid good to reach Good effect of extracting.Simultaneously, it is also possible to the usage amount of the accurate treating capacity and tap water for calculating waste liquid, device is also allowed for Further improvement.

Further scheme, extraction equipment (203, the pipeline 204) and between rectifier unit 207 is provided with surge tank 205, For collecting extract.

Surge tank is set between extraction equipment and rectifier unit, extract can be collected and store temporarily, then carries out essence Evaporate, it is possible to reduce unexpected situation, carry out processing procedure steady ordered.

Further scheme, including emission-control equipment 211, the emission-control equipment is by pipeline and extraction equipment (203,204) top connection.

Waste liquid can produce a small amount of nitric oxide gas in extraction process, be filled by extraction tower top discharge to exhaust-gas treatment Putting carries out harmless treatment, it is ensured that qualified discharge.

Further, electrodynamic valve and pH detection means are provided with the pipeline, the pH detection means is used to carry out online PH is monitored.

On the connecting line of each sub-device of devil liquor recovery processing system, electrodynamic valve is provided with, for control pipe The closure on road, is provided with pH detection means, for carrying out online pH monitorings.Electrodynamic valve connects with pH detection means with TT＆C system Connect, TT＆C system can be judged according to the signal of feedback, the unlatching closure of control piper adjusts flow, completes to process Journey.

Further, the neutralization reaction device is provided with nertralizer container 208, for providing nertralizer.

After the completion of extraction, the aqueous solution that the propellant in each extraction equipment is formed with water enters into neutralization reactor In, pH detection means monitors the pH of solution on-line, and the nertralizer in nertralizer container is pumped in neutralization reactor by conveying, Stirring mixing, the reactant aqueous solution formed with propellant and water.When oxidant tank and fuel tank are cleaned, produce not after extraction With the aqueous solution of Acidity of Aikalinity, it is therefore desirable to select suitable nertralizer according to feed liquor pH.Oxidant waste liquid presents acid, there is provided alkali Property nertralizer be neutralized, fuel waste liquid present alkalescence, there is provided acid acceptor is neutralized.In on-line checking course of reaction PH changes, satisfactory preset value to be achieved, detects up to standard discharge.

Embodiment ten

The present embodiment provides a kind of method of abluent liquid waste processing, it is characterised in that include：

(1) extract and separate：Cleaning waste liquid enters extraction equipment, extracts, and is divided into cleaning oxidant layer and propellant layer；

(2) rectification purification：The extract of cleaning oxidant layer carries out purification into rectifier unit, into abluent tank, in case Secondary returning is used.

Further, including：

(1) extract and separate：Dosing pump is opened, respectively conveying cleaning waste liquid and water from waste collection tank and water supply To single extraction device, hybrid extraction is carried out, after stratification, propellant layer extract is delivered to reextraction device, secondary After extraction, cleaning oxidant layer extract is delivered to surge tank；The aqueous solution of propellant layer is delivered to neutralization reaction dress after extracting twice Put, with the aqueous solution of propellant layer in nertralizer, detect qualified rear discharge.

(2) rectification purification：Extract in surge tank is delivered to rectifier unit, and the abluent after isolating and purifying enters cleaning Agent tank, in case secondary returning is used.

Extract and separate is to separate propellant with abluent, is layered in extraction tower.Wherein, propellant forms water-soluble with water One layer of the water or other impurity of liquid, i.e. propellant layer extract, abluent and a small amount of residual, that is, clean oxidant layer extract, can be with Respectively two-layer extract is caused into different equipment, further separated.Extract containing abluent enters distilling apparatus, removes Water and other impurity, carry out purification, and the abluent after detection is qualified enters abluent tank, in case secondary returning is used.

Embodiment 11

The present embodiment offer is a kind of to carry out cleaning waste liquid using described propellant tank cleaning devil liquor recovery processing system The method of process, the method includes：

(1) discharging of waste liquid is cleaned to waste collection tank；

(2) dosing pump is opened, respectively from waste collection tank and water supply conveying cleaning waste liquid and water to once extracting Device is taken, hybrid extraction is carried out, after stratification, bottom solution is discharged from outlet at bottom, is delivered to reextraction device, bottom Solution is discharged from outlet at bottom, is delivered to surge tank；Upper strata propellant aqueous solution is delivered to neutralization reaction device from upper end outlet, Nertralizer is neutralized, and detects qualified rear discharge.

(3) extract in surge tank is delivered to rectifier unit, and the abluent after isolating and purifying enters abluent tank, with Standby secondary returning is used.

Because abluent density is big compared with water in step (2), extract enters secondary after discharging from the bottom of towe of single extraction tower Extraction tower, the extract of bottom can enter surge tank.Extract needs Jing rectification due to remaining a small amount of dispersion phase water drop After device is isolated, separating qualified abluent carries out reuse, and the aqueous solution after separation is processed into neutralization reaction tower.

A small amount of nitric oxide gas can be produced in extraction process, is entered to emission-control equipment by extraction tower top discharge Row harmless treatment, it is ensured that qualified discharge.Extractant adopts water, and the nitrogen oxide in abluent is extracted, and produces after extraction Strong acid enter neutralization reaction tower, carry out acid-base neutralization reaction using highly basic, the salt of harmless China is generated, while in pipe-line system It is middle that online pH monitoring is set, feedback control is carried out according to preset value, it is qualified to detect, it is up to standard after just can discharge.

Embodiment 12

As Figure 4-8, the present embodiment provides a kind of vapour phase cleaning system of propellant tank, including cooling system 5, institute Cooling system is stated including tool structure 6, the tool structure 6 is fixedly mounted on the upper end of propellant tank 1, tool structure 6 with push away Enter the heat transfer space 305 formed between agent tank 1 for flow of fluid, propellant tank 1 is carried out by fluidic heat exchange of fluids Heat exchange.

The cooling system of vapour phase cleaning system, for cooling down to the abluent steam inside propellant tank, this reality The structure that example simulates propellant tank is applied, there is provided a kind of tool structure, for freezing to propellant tank.Cooling system master Function is wanted to be to produce cold wind using refrigeration unit, Jing transfer pipelines cause the air inlet of tool structure, and then realize to propellant The cooling effect of tank, it is ensured that abluent steam can be condensed in casing upper end in propellant tank, forms abluent liquid stream pair The inwall of propellant tank, pipeline and other complex regions carry out phase transformation impact and wash away, and realize the cleaning to propellant tank.

The particularity of refrigeration position (propellant tank), and the efficiency of refrigeration modes are considered during refrigerant system design, preferentially Explosion-proof refrigeration all-fresh air form is selected to be freezed, it is required when calculating in combination with cleaning actual condition situation and Fluent simulations Minimum operating temperature, designs the temperature-control range of refrigeration unit, while to monitor air outlet cold flow, stream is provided with the duct Gauge, and each air outlet is provided with air-valve coordinated signals, and then strengthen the operability of equipment.

The tool structure is fixedly mounted on propellant tank, can be convenient to dismantle with by the way of detachable installation. Specifically may be mounted at propellant tank needs the position of refrigeration, such as installed in the upper end of propellant tank or side wall.Work After assembling structure is arranged on propellant tank, a heat transfer space for being used for flow of fluid is formed between propellant tank, led to Cross fluidic heat exchange of fluids carries out heat exchange refrigeration to propellant tank.

Further scheme, the tool structure includes upper top 301 and side wall 302, and upper top 301 is integrated with side wall 302 Molding, the lower end of side wall 302 is tightly connected with propellant tank 1；Described upper top 301, side wall 302 and propellant tank 1 Between form heat transfer space 305 for flow of fluid, the fluid is cooling medium.

Upper top can be circular flat plate or square plate or other arbitrary shapes, and side wall is annular slab, the upper end of side wall with The lower surface on upper top is tightly connected, and lower end is tightly connected with the outer tube of propellant basin.Or according to specific propellant tank Shape arrange, thus, forming heat transfer space between upper top, side wall and propellant tank.

Further scheme, the inwall on the upper top 301 is not little with the distance between the outer wall of upper end of propellant tank 1 In 50mm.

The distance between the inwall on upper top and the outer wall of upper end of propellant tank are not less than 50mm, actually refer to the interior of upper top Minimum range between the upper bottom outer wall of wall and propellant tank is not less than 50mm, to reach good circulation effect.General Bottom is circular arc protruding upward on propellant tank, and the upper top of tool structure can be horizontally disposed with, and is such as flat board, it is also possible to It is upper or downwardly projecting.Therefore between the upper top of tool structure and the upper bottom of propellant tank, distance everywhere is different, most narrow spacing From not less than 10mm, the circulation effect of fluid is ensure that.

Further scheme, the upper top 301 is circular flat board, and the side wall 302 is annular slab, circular slab periphery and ring The upper end of shape plate is seamlessly connected, and the annular slab is fixedly connected by bolt with the upper end of propellant tank 1.

Propellant basin is straight barrel type, is vertically placed, and upper bottom is arc outwardly.Tool structure is simulated push away completely Enter the structure at the upper bottom of agent basin, upper top is circular flat board, and side wall is annular slab, circular slab periphery and the seamless company in annular slab upper end Connect, the annular slab is fixedly connected by bolt with propellant tank upper end.Processing can be easy to material-saving, be more convenient for tearing open Unload and install.

Further scheme, the tool structure is provided with opening, and the pipe for cooling medium circulation is connected with opening Road.

On tool structure arrange opening, and be connected with for cooling medium circulation pipeline, the cold wind of cooling system or Cold water enters heat transfer space by pipeline, takes away the heat of propellant tank, reaches the function of refrigeration.Opening on tool structure Could be arranged to it is multiple, at least two, for the entrance or discharge of cold wind or cold water.Except for cooling system, connecting cold But beyond pipeline, other pipelines, such as pressure piping can also be connected on tool structure.

Further scheme, the opening includes fluid inlet 303 and fluid issuing 304, fluid inlet be connected with for The inlet ductwork that cooling medium is flowed into；Preferably, the fluid inlet 303 and fluid issuing 304 are separately positioned on tool structure Both sides and be oppositely arranged.

Structure setting fluid inlet and fluid issuing in frock, for the inlet and outlet of cooling medium, reach refrigeration effect Really.Fluid inlet and fluid issuing are separately positioned on the both sides of tool structure and are oppositely arranged, then when cooling system is air-cooled, Convection current can be formed, resistance is reduced, cooling effect is improved.

Tool structure can be connected with the outlet or air outlet of the cold water of one end and cooling system either cold wind, the other end Directly discharge, cooldown rate is fast；Can also the outlet or air outlet of cold water either cold wind of one end and cooling system be connected, The other end is connected with the water return outlet or return air inlet of cooling system, forms cooling circulation, energy saving.

Embodiment 13

As Figure 4-8, the present embodiment is the further restriction of embodiment 12, is provided with multiple inside the tool structure The axis of spaced reinforcement structure 306, the reinforcement structure 306 and fluid inlet 303 and fluid issuing 304 is into certain Angle.

Reinforcement structure can be reinforcement, reinforcement dividing plate etc., can be arranged on top, side wall or while consolidate with both Fixed connection, strengthens the voltage endurance capability and service life of tool structure.The axis of reinforcement structure and fluid inlet and fluid issuing into During certain angle, reinforcement structure may also operate as certain water conservancy diversion or unhurried current effect, and one end of such as tool structure enters cold Wind, when the other end is directly discharged, reinforcement structure can extend cold wind elapsed time in heat transfer space, to strengthen cooling effect Really.

Further scheme, the reinforcing plate is separately positioned near the one end of fluid inlet 303, work at least provided with three Assembling structure central authorities and close one end of fluid issuing 304.

Reinforcing plate arranges more than three, on the one hand plays preferable booster action, on the other hand can play certain leading Stream is acted on.When the fluid inlet of tool structure enters cold wind, and fluid issuing is expelled directly out wind to outdoor, reinforcing plate extends cold wind Jing The time of heat exchange area is spent, strengthens cooling effect.

Further scheme, the reinforcement structure is reinforcing plate, and the lower end of the reinforcing plate has and propellant tank 1 The mating surface that upper end is engaged, the upper end of the reinforcing plate is fixedly connected with the upper top 301 of tool structure, the side of reinforcing plate with The side wall 302 of tool structure is fixedly connected.

Reinforcement structure is reinforcing plate, and reinforcing plate coordinates the upper end of propellant tank to arrange.The upper bottom of propellant tank be to The arc of outer protrusion, reinforcing plate is on length direction while being the cuboid of arc.In the longitudinal direction, one end is fixed with upper top Connection, the other end is arranged for the arc of case indent, while being not less than 50mm with the minimum range between the upper bottom of propellant tank.Plus In the direction of the width, larger one end is fixedly connected strong plate with side wall.Reinforcing plate in the longitudinal direction with fluid inlet and fluid The axis of outlet is at a certain angle.

Further scheme, described cooling medium is cold wind, and the fluid inlet 303 is air inlet, and the fluid goes out Mouth 304 is exhaust outlet, and the air inlet protrudes to the outside of tool structure, is connected with the air outlet of the cooling system of propellant tank Connect.

Cooling system adopts air cooling system, to frock and propellant tank be tightly connected require it is relatively low, it is easy to accomplish.Enter Air port is protruded to the outside of tool structure, also allows for connecting the pipeline of cooling system.

Further scheme, the tool structure is made up of spray painting aluminium sheet, and also having inside the tool structure is used for The region of pressure-increasing unit pipeline is set.

Tool structure is made to increase the service life by the aluminium sheet that paints, not perishable, can arrange pressure-increasing unit pipe Road, to need to be used during supercharging.

Further scheme：

Tool structure is connected by bolt (M10 × 50) with propellant tank cylinder section upper end, air inlet and refrigeration unit Air outlet is connected.The material of tool structure is aluminium sheet spray painting thin plate, and diameter 3428mm is highly 850mm, and wall thickness is 1mm, weight Amount about 60kg, frock is reliably fixed by 4 M10 × 50 sized bolts.There is lacing wire reinforcement structure inside frock.Frock both sides set It is equipped with into, exhaust outlet, a diameter of Φ 290mm of blast pipe, outside development length is 100mm, air outlet connects for 400*400mm is square Mouthful, it is 180 degree into and out of the angle between air port.The reserved pressure-increasing unit pipeline of tool structure, cable connection circuit position.

Embodiment 14

The present embodiment is the further restriction of the nitrogen heating system 7 of closed vapour phase cleaning system.Nitrogen heating system 7 is led To be made up of explosion-proof nitrogen heater, distribution platform and respective valves, pipeline etc..Nitrogen heating system major function is for propellant Cleaned dose of steam clean post-purge internal residual abluent of tank, propellant and the fill valve to open propellant tank Excessive valve of door, peace etc. provides source of the gas.

Wherein, consider cleaning environmental working condition and contact medium situation when nitrogen heater is designed, be designed as rustless steel explosion-proof Type, while according to tank purging temperature and flow after cleaning, designing heater power, and matches inlet, outlet size, while plus Hot device explosion-proof electric control box is capable of achieving local monitor and remotely control both of which, to facilitate execute-in-place.Consider Redundancy Design, nitrogen Hot-air heater is both designed as with one for one.

Distribution platform considers its feature, the road different pressures output of design three, can meet propellant tank cleaning post-purge and Desirable pressure and filling valve are replaced, valve is overflowed, is let out valve opening desirable pressure scope clearly, selected according to different pressures scope Air relief valve range of accommodation, while matching pipe interface.

Embodiment 15

The present embodiment is the further limit of abluent tank, concentration detection system and TT＆C system in vapour phase cleaning system It is fixed.

Abluent tank 2 is used for the storage of abluent, by abluent basin, pressure transmitter, liquidometer, hand-operated valve, electricity Dynamic valve etc. is constituted.In order to intuitively show cleaning agent content and effective control cleaning liquid level, in the tank body of abluent basin Liquidometer is installed, liquidometer can show liquid level numerical value, while carrying signal output, can remotely show in TT＆C system.Simultaneously Tank body is provided with pressure transducer, can carry out pressure monitoring, and carries out remotely monitor in TT＆C system, and then guarantees live liquid Body storage is safe and reliable.Tank body respectively goes out liquid, exhaust port and is respectively connected with electrically operated valve while being parallel with manually-operated gate, and then really Protect whole system free switching.

Concentration detection system 9 is main by propellant (UDMH, N₂O₄) monitoring of concentration sensor, valve, instrument and gas concentration Platform is constituted, and major function is residual propellant concentration in tank after real-time online detection cleaning.Propellant concentration in tank after cleaning Realization monitoring is carried out by online gas sensor, and is shown by Display panel instrument, it is considered to sample lines length and Discharge pipe, in thief hatch sampling pump is provided with, while selecting the gas sensor of suitable range according to gas concentration scope.Blow Sweep rear waste gas to discharge Jing after exhaust-gas treatment, exhaust-gas treatment amount is configured according to nitrogen purge gas flow amount scope.

TT＆C system is mainly by groups such as master console, industrial computer, display instrument, control knob, electric control panel and connection cables Into.Master console is designed as platform body structure, and display floater and control consider human users' property, while each subsystem monitors parameter set Into display, control flow can intuitively show, with reserved safety precautions, can realize emergency shutdown, and then keep the scene intact Personnel and equipment.

TT＆C system includes cooling system, abluent steam raising plant, nitrogen heating system and density monitoring system In the signal such as each measurement temperature, pressure, flow sensor and control valve etc..Under normal circumstances each equipment is with one standby One, when main equipment breaks down, system can switch to alternate device, it is ensured that system worked well；Density monitoring system can be real Existing propellant concentration monitoring, by realizing control system operation with closed ring to gas concentration parameters real-time monitoring.

The detection method of cleaning performance：

(1) open tank to go to the bottom clear drain port technique blanking cover, be placed on clean table top；

(2) tank inwall is checked using industrial endoscope, and is taken pictures；

(3) tank is gone to the bottom and tank wall before contrast cleaning and after cleaning, and upper bottom and tank wall surface cleanliness and state judge clear Wash effect；

(4) after having checked, two grades of oxygen casees are gone to the bottom sealing joint with technique blanking cover.

The above is only presently preferred embodiments of the present invention, and any pro forma restriction is not made to the present invention, though So the present invention is disclosed above with preferred embodiment, but is not limited to the present invention, any technology people for being familiar with this patent Member in the range of without departing from technical solution of the present invention, when using the technology contents of above-mentioned prompting make it is a little change or be modified to The Equivalent embodiments of equivalent variations, as long as being the content without departing from technical solution of the present invention, according to the technical spirit pair of the present invention Any simple modification, equivalent variations and modification that above example is made, still fall within the range of the present invention program.

Claims (10)

1. a kind of vapour phase cleaning system of propellant tank, is provided with abluent tank, it is characterised in that including liquid waste processing dress Put, the liquid waste treating apparatus include the extraction equipment and rectifier unit through pipeline connection, the rectifier unit passes through pipeline It is connected with abluent tank；The waste liquid is extracted through extraction equipment, is divided into cleaning oxidant layer and propellant layer, the cleaning oxidant layer Abluent tank is entered after purification into rectifier unit, is recycled.

2. a kind of vapour phase cleaning system of propellant tank according to claim 1, it is characterised in that the extraction equipment Lower part outlet be connected with the import of rectifier unit by pipeline.

3. a kind of vapour phase cleaning system of propellant tank according to claim 1 and 2, it is characterised in that the extraction Device includes single extraction device and reextraction device, the lower part outlet of single extraction device and the import of reextraction device Connection, the lower part outlet of reextraction device is connected by pipeline with the import of rectifier unit.

4. the vapour phase cleaning system of a kind of propellant tank according to claim 1, it is characterised in that also anti-including neutralization The outlet for answering device, the extraction equipment is connected with neutralization reaction device, and the propellant layer in the extraction equipment enters neutralization Reaction unit is neutralized after process and discharges.

5. a kind of vapour phase cleaning system of propellant tank according to claim 4, it is characterised in that the neutralization reaction The port of export of device is connected by pipeline with entrance point, and the pipeline is provided with pH detection means, electrodynamic valve and dosing pump, be used for into The secondary neutralization reaction of row.

6. the vapour phase cleaning system of a kind of propellant tank according to claim 1, it is characterised in that also receive including waste liquid Collection tank and water supply, the import of the waste collection tank is connected with propellant tank, and the outlet of waste collection tank is by pipe Road is connected with extraction equipment；The water supply is connected by pipeline with extraction equipment, for providing extractant；The pipeline It is provided with dosing pump.

7. the vapour phase cleaning system of a kind of propellant tank according to claim 1, it is characterised in that extraction equipment and essence Pipeline between distillation unit is provided with surge tank, for collecting extract.

8. the vapour phase cleaning system of a kind of propellant tank according to claim 1, it is characterised in that including exhaust-gas treatment Device, the emission-control equipment is connected by pipeline with extraction equipment top.

9. a kind of a kind of vapour phase cleaning system of the propellant tank described in utilization claim 1-8 carries out the side of liquid waste processing Method, it is characterised in that include：

(1) extract and separate：Cleaning waste liquid enters extraction equipment, extracts, and is divided into cleaning oxidant layer and propellant layer；

(2) rectification purification：The extract of cleaning oxidant layer carries out purification into rectifier unit, into abluent tank, in case secondary Reuse.

10. the method for liquid waste processing according to claim 9, it is characterised in that include：

(1) extract and separate：Dosing pump is opened, and respectively conveying cleans waste liquid and water to one from waste collection tank and water supply Secondary extraction equipment, carries out hybrid extraction, and after stratification, propellant layer extract is delivered to reextraction device, reextraction Afterwards, propellant extract is delivered to surge tank；The aqueous solution of propellant layer is delivered to neutralization reaction device after extracting twice, carries out Neutralization reaction, detects qualified rear discharge.

(2) rectification purification：Extract in surge tank is delivered to rectifier unit, and the abluent after isolating and purifying is store into abluent Case, in case secondary returning is used.