CN106583368A - Vapor phase cleaning system of propellant storage tank - Google Patents
Vapor phase cleaning system of propellant storage tank Download PDFInfo
- Publication number
- CN106583368A CN106583368A CN201611052402.1A CN201611052402A CN106583368A CN 106583368 A CN106583368 A CN 106583368A CN 201611052402 A CN201611052402 A CN 201611052402A CN 106583368 A CN106583368 A CN 106583368A
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- Prior art keywords
- propellant tank
- abluent
- propellant
- tank
- steam
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- Granted
Links
- 239000003380 propellant Substances 0.000 title claims abstract description 211
- 238000004140 cleaning Methods 0.000 title claims abstract description 131
- 238000003860 storage Methods 0.000 title abstract description 14
- 239000012808 vapor phase Substances 0.000 title abstract 4
- 239000012530 fluid Substances 0.000 claims abstract description 77
- 238000001816 cooling Methods 0.000 claims abstract description 47
- 230000003014 reinforcing effect Effects 0.000 claims description 21
- 230000002787 reinforcement Effects 0.000 claims description 18
- 238000012546 transfer Methods 0.000 claims description 14
- 239000002826 coolant Substances 0.000 claims description 13
- 230000013011 mating Effects 0.000 claims description 3
- 238000000465 moulding Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 26
- 230000008569 process Effects 0.000 abstract description 13
- 238000005057 refrigeration Methods 0.000 abstract description 13
- 239000012459 cleaning agent Substances 0.000 abstract description 4
- 238000013020 steam cleaning Methods 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 97
- 239000007788 liquid Substances 0.000 description 85
- 238000000605 extraction Methods 0.000 description 48
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 38
- 239000002699 waste material Substances 0.000 description 36
- 239000000284 extract Substances 0.000 description 27
- 238000001514 detection method Methods 0.000 description 24
- 230000000694 effects Effects 0.000 description 24
- 238000006386 neutralization reaction Methods 0.000 description 23
- OAKJQQAXSVQMHS-UHFFFAOYSA-N Hydrazine Chemical compound NN OAKJQQAXSVQMHS-UHFFFAOYSA-N 0.000 description 20
- 238000010438 heat treatment Methods 0.000 description 20
- 229910052757 nitrogen Inorganic materials 0.000 description 19
- 239000007800 oxidant agent Substances 0.000 description 19
- 230000001590 oxidative effect Effects 0.000 description 19
- 238000013461 design Methods 0.000 description 15
- 238000012544 monitoring process Methods 0.000 description 15
- 239000007789 gas Substances 0.000 description 14
- WFPZPJSADLPSON-UHFFFAOYSA-N dinitrogen tetraoxide Chemical compound [O-][N+](=O)[N+]([O-])=O WFPZPJSADLPSON-UHFFFAOYSA-N 0.000 description 12
- 238000012545 processing Methods 0.000 description 12
- 239000007864 aqueous solution Substances 0.000 description 11
- 239000003795 chemical substances by application Substances 0.000 description 11
- 241000196324 Embryophyta Species 0.000 description 10
- 230000008676 import Effects 0.000 description 10
- 239000000446 fuel Substances 0.000 description 9
- 238000010926 purge Methods 0.000 description 9
- 238000006243 chemical reaction Methods 0.000 description 8
- 238000011084 recovery Methods 0.000 description 8
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 7
- 239000010808 liquid waste Substances 0.000 description 7
- 238000000746 purification Methods 0.000 description 7
- 239000000243 solution Substances 0.000 description 7
- 230000008016 vaporization Effects 0.000 description 7
- 238000009835 boiling Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 6
- 230000006870 function Effects 0.000 description 6
- 239000006210 lotion Substances 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- 238000009834 vaporization Methods 0.000 description 6
- RHUYHJGZWVXEHW-UHFFFAOYSA-N 1,1-Dimethyhydrazine Chemical compound CN(C)N RHUYHJGZWVXEHW-UHFFFAOYSA-N 0.000 description 5
- 230000005520 electrodynamics Effects 0.000 description 5
- 239000002253 acid Substances 0.000 description 4
- 230000008859 change Effects 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 238000010992 reflux Methods 0.000 description 4
- 238000009991 scouring Methods 0.000 description 4
- 239000008399 tap water Substances 0.000 description 4
- 235000020679 tap water Nutrition 0.000 description 4
- 239000002912 waste gas Substances 0.000 description 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 3
- 239000004411 aluminium Substances 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000003749 cleanliness Effects 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 239000003599 detergent Substances 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000011049 filling Methods 0.000 description 2
- 239000002828 fuel tank Substances 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000002516 radical scavenger Substances 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 230000008439 repair process Effects 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000007592 spray painting technique Methods 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 238000013517 stratification Methods 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 241000009298 Trigla lyra Species 0.000 description 1
- 230000004308 accommodation Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 238000005842 biochemical reaction Methods 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 230000001351 cycling effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000012153 distilled water Substances 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 210000003027 ear inner Anatomy 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000003978 infusion fluid Substances 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000005055 memory storage Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- HDZGCSFEDULWCS-UHFFFAOYSA-N monomethylhydrazine Chemical compound CNN HDZGCSFEDULWCS-UHFFFAOYSA-N 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 230000007096 poisonous effect Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
- 230000003252 repetitive effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000013519 translation Methods 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/08—Cleaning containers, e.g. tanks
- B08B9/0861—Cleaning crates, boxes or the like
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64G—COSMONAUTICS; VEHICLES OR EQUIPMENT THEREFOR
- B64G1/00—Cosmonautic vehicles
- B64G1/22—Parts of, or equipment specially adapted for fitting in or to, cosmonautic vehicles
- B64G1/40—Arrangements or adaptations of propulsion systems
- B64G1/402—Propellant tanks; Feeding propellants
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B1/00—Methods of steam generation characterised by form of heating method
- F22B1/28—Methods of steam generation characterised by form of heating method in boilers heated electrically
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F27/00—Control arrangements or safety devices specially adapted for heat-exchange or heat-transfer apparatus
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Sustainable Energy (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Remote Sensing (AREA)
- Aviation & Aerospace Engineering (AREA)
- Cleaning By Liquid Or Steam (AREA)
Abstract
The invention discloses a vapor phase cleaning system of a propellant storage tank. The vapor phase cleaning system comprises a cooling system, and the cooling system comprises a tooling structure; the tooling structure is fixedly mounted at the upper end of the propellant storage tank; a heat exchange space for allowing a fluid to flow is formed between the tooling structure and the propellant storage tank; and heat exchange is carried out on the propellant storage tank through heat exchange by virtue of flowing of the fluid. According to the vapor phase cleaning system, the tooling structure is mounted on the propellant storage tank, helps to achieve refrigeration of the propellant storage tank, can be utilized in the cleaning agent steam cleaning process of the propellant storage tank, and is simple in structure, low in cost, and convenient to mount and disassemble.
Description
Technical field
The invention belongs to clean field, specifically, it is related to a kind of vapour phase cleaning system of 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；The complex structure of tank, has in casing simultaneously
The labyrinths such as anti-sloshing baffles, gusset plate, bracing wire, weld seam, the propellant of general filling are 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 thoroughly cleaning will be carried out before use or periodic detection every time.
At present hydrazine (uns-dimethylhydrazine, anhydrous hydrazine, MMH) and the cleaning way of dinitrogen tetroxide tank are mainly adopted
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 need hand inspection after cleaning is finished
The cleanliness factor of inwall after cleaning, operational danger are 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, affect the life-span of product even to produce accident potential.
Therefore, technical staff is developed for cleaning the scavenger specially of 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 inside another aspect tank, fine structure has been difficult to
All clear wash clean, tack are 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
The cleaning process for entering agent basin should select closed cleaning.Conventional clean mode is carried out cleaning, is checked cleaning effect using artificial operation
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 with reserving liquid tank by pipeline, 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 with feed tube in blind end junction.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 fine structure is difficult to clean up completely inside tank, 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.The tool structure of the present invention, on propellant tank, auxiliary realizes the refrigeration to propellant tank, can
For the abluent steam clean process of propellant tank, and tool structure is simple, with low cost, easy installation and removal.
To solve above-mentioned technical problem, the present invention using the basic conception of technical scheme is：
The present invention provides a kind of vapour phase cleaning system of propellant tank, including cooling system, and the cooling system includes
Tool structure, the tool structure are fixedly mounted on propellant tank upper end, formed and use between tool structure and propellant tank
In the heat transfer space of flow of fluid, propellant tank is exchanged heat by fluidic heat exchange of fluids.
Further, the tool structure includes top and side wall, upper top and side wall integrated molding, the side wall lower ends
It is tightly connected with propellant tank；Described upper top, between side wall and propellant tank, form empty for the heat exchange of flow of fluid
Between, the fluid is cooling medium.
Further, the distance between outer wall of upper end of the inwall on the upper top and propellant tank is not less than 50mm.
Further, the upper top is circular flat board, and the side wall is the upper end of annular slab, circular slab periphery and annular slab
It is seamlessly connected, the annular slab is fixedly connected with the upper end of propellant tank by bolt.
Further, the tool structure is provided with opening, and the pipeline for cooling medium circulation is connected with opening.
Further, the opening includes fluid inlet and fluid issuing, and fluid inlet is connected with for cooling medium stream
The inlet ductwork for entering；
Preferably, the fluid inlet and fluid issuing are separately positioned on the both sides of tool structure and are oppositely arranged.
Further, multiple spaced reinforcement structures, the reinforcement structure and stream are provided with inside the tool structure
The axis of body import and fluid issuing is at a certain angle；
Preferably, the reinforcing plate is separately positioned near fluid inlet one end, tool structure central authorities at least provided with three
With close fluid issuing one end.
Further, the reinforcement structure is reinforcing plate, and the lower end of the reinforcing plate is with the upper end with propellant tank
The mating surface being engaged, the upper end of the reinforcing plate are fixedly connected with the upper top of tool structure, and side and the frock of reinforcing plate are tied
The side wall of structure is fixedly connected.
Further, described cooling medium is cold wind, and the fluid inlet is air inlet, and the fluid issuing is air draft
Mouthful, the air inlet is protruded to the outside of tool structure, is connected with the air outlet of cooling system.
Further, also there is in the tool structure region for being used to arranging pressure-increasing unit pipeline.
After above-mentioned technical proposal, the present invention is had the advantages that compared with prior art：
(1) tool structure in cooling system of the invention, simulates the local shape of propellant tank, installed in propellant
On tank, the refrigeration to propellant tank is easily realized, can be used for the abluent steam clean process of propellant tank, and
And tool structure is simple, with low cost, easy installation and removal.
(2) tool structure of the invention also has the region for being used to arranging pressure-increasing unit pipeline, can be used for being pressurized
Deng serving many purposes.
Below in conjunction with the accompanying drawings the specific embodiment of the present invention is described in further detail.
Description of the drawings
A part of the accompanying drawing as the present invention, for providing further understanding of the invention, the present invention's is schematic
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
It is 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 the design model for limiting 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 to greasy dirt, debris and a not low boiling of damaging substrate material
Point solvent is cleaned to various objects to be washed in special vapour phase cleaning machine as abluent.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
Dirty to remove simultaneously, abluent steam can effectively cut any tiny hole and crack, peel off and remove spot therein and
Residue, cleaning performance completely, work 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 reaction is produced with propellant, cause the corrosion of tank.
The application realizes the strict control in cleaning process to abluent vapor (steam) temperature, 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；Simultaneously will be abluent steam cold for maximum restriction
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 scouring effect of the solute effect and liquid cleaner of individual subtlety, reaches 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, is vaporized during can preventing 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.
1 abluent performance parameter of table
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 for cooling down the cooling of 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., liquid ceanser can be delivered to from abluent tank
Abluent steam raising plant, produces abluent steam, and abluent steam is entered in propellant tank, cleaned.Abluent
Steam is carried out softening, expands, separates, dissolving to the spot of surface to be cleaned, can effectively be cut any tiny hole and be split
Seam, cleaning performance are 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, enter line replacement cleaning to propellant tank, it is possible to increase cleaning efficiency.
Propellant tank is provided with for cooling down the cooling system of 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 and liquid cleaner of steam state abluent 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 are included the heater 101 connected by pipeline and are changed
Thermal 102, arranges heat transferring medium in heater 102, the propellant tank 1 is connected with heat-exchanger rig 102 by pipeline；
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
Exchange heat with liquid ceanser, produce abluent steam.
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, can both realize for abluent being changed into abluent steam, can isolate water and abluent steam 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 enter 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 is passed to the hot-water outlet conduits' Jing pumps pressurization entrance heating again after material by bottom by heat
Device is heated, and repetitive cycling is utilized.
Further scheme, temperature of the liquid ceanser Jing after the heating of heat-exchanger rig 102 are 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 include tool structure 6, and the tool structure 6 is arranged on propellant tank 1
End, forms fluid circulation space between pushing up, by the flowing of fluid to propellant tank 1 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, forms the flowing space of cold wind on tool structure and propellant tank between pushing up, cold for circulating
But the cold wind of system, is cooled down to propellant tank heat exchange by the flowing of cold wind.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 is connected with the import of propellant tank by pipeline, for purging the propellant after 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 are passed through the nitrogen after heating and can more quickly dry up propellant receptacle chamber interior wall, improve 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 carries out recycling 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 with propellant and purification, abluent is reclaimed, qualified abluent can be more
It is secondary to recycle, it is cost-effective.
Further scheme, vapour phase cleaning system are 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 the observing and controlling system for 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 by control valve controlling the folding of respective line.
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, is made a response by receiving, analyzing, controlling 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 to which into propellant tank 1, meanwhile, abluent steam is in cooling system
5 effect of system is lower to liquefy, dirty to wash away propellant receptacle chamber interior wall.
Conveyer device is opened, and the liquid ceanser in abluent tank is transported to 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 is condensed 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
Propellant receptacle chamber interior wall is washed away directly.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, 102 one end of the heat-exchanger rig passes through pipeline and abluent
Tank 2 connects, and the other end is connected with propellant tank 1 by pipeline；The heater 101 is used to heat heat transferring medium generation
Heat transferring medium steam, heat transferring medium steam are entered in heat-exchanger rig 102 and are exchanged heat with liquid ceanser, produce 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 etc..Electric heater is connected with water pump, for being input into tap water, electricity
Cool water heating is changed into water vapour by heater, liquid ceanser is heated in being input to heat exchanger.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 is 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 are 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 is provided with the to the pipeline that heat-exchanger rig 102 is input into heat transferring medium steam
One control valve 105, the signal output part of the temperature sensor 103 are connected with the control end of the first control valve 105, the first control
Valve control heat transferring medium steam flow to keep abluent steam being design temperature 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 flow 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 be set as needed in advance.Therefore, abluent steam generating system can strictly control the clear of generation
The temperature of lotion steam, operating process are simple and easy to do, also improve 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 in system, and when the temperature of temperature sensor monitors exceeds design temperature, alarm device is reported to the police, work people
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 according to the detected value of pressure transducer 104 and keeps abluent steam pressure
Steadily.
Pressure transducer is capable of the pressure changing of real-time monitoring abluent steam (vapor) outlet, and signal is passed to the second control
Valve, the second control valve control 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.
On heat-exchanger rig, liquid level sensor can be float ball liquid level sensor, can not have in real-time monitoring heat exchanger exit
Liquid level signal can be passed to the 3rd control valve by the liquid level limit of the abluent of vaporization, 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, the direct-reading level gauging for directly observation liquid level is additionally provided with the heat-exchanger rig 102
Device.The direct-reading liquid level emasuring device arranged on heat exchanger, can be gauge glass etc., 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, the heat exchanger tube 109 being arranged in shell, upper perforated plate 117 and down tube
The surrounding of plate 116, the upper perforated plate 117 and lower perforated plate 116 is located by connecting with shell, is equipped with some on upper perforated plate and lower perforated plate
Circular hole, the heat exchanger tube 109 are passed through circular hole and are tightly connected 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 are 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, condensed water of the water return outlet 111 by water return pipeline with heat-exchanger rig goes out
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 is exchanged heat with abluent, condensed water is transmitted back to water vapour by force (forcing) pump and sends out
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 with heat transferring medium steam and is changed
Heat, produces abluent steam；
(3) abluent steam is cleaned into propellant tank 1 by heat-exchanger rig 102.
Heater is steam generator, and heat-exchanger rig is heat exchanger.Steam generator produces water after opening
Steam, water vapour enter 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 are 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 control 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
Further restriction of the present embodiment for embodiment six, there is provided a kind of to produce abluent using the vapour phase cleaning system
The method of steam, the method include：
(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 is input into water vapour to heat exchanger, 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, electric to add
Hot device unlatching work, heats originally water producing water vapor.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 are 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, after signal feeds back to temperature-sensing valve, 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 for not having the abluent for vaporizing in real-time monitoring heat exchanger exit are limited
Liquid level signal can be passed to the 3rd control valve by degree as needed, with the switch degree according to 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 meet design temperature, output
Abluent steam is also steady, then by output pipe, be transported in propellant tank, enters 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 with abluent tank 2 by pipeline；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 the waste gas that produces discharged after harmless treatment, during the waste water that produces through processing
After discharge.Extraction equipment is propellant main device detached with abluent, and waste liquid is entered extraction equipment, mixed with extractant,
It is layered after stirring, standing, completes extraction process.After extraction, solution is divided into cleaning oxidant layer and propellant layer, the cleaning of the present embodiment
Density of the density of agent more than 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
After the extract of lotion layer enters rectifier unit, 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, 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 the import of pipeline and 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, the position of the part reclaimed according to required for after layering is arranged suitable outlet 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, and 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 include single extraction device 203 and reextraction device 204, once extract
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
Import with rectifier unit 207 is connected.
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 that mixes is less, separates
Effect is more preferable.When one-level extraction or multitple extraction, it is also possible to which intermediate buffer is set, after liquid to be extracted collects 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 after neutralization reaction device is neutralized process and discharge.
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, examines
Discharged after survey is qualified.
Further scheme, the port of export of the neutralization reaction device 206 is connected with entrance point by pipeline, 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
The port of export of neutralization reaction device is connected by road 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 be discharged.
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 measuring the amount of the tap water of input；The ratio of suitable water and waste liquid is selected, is reached good
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, also allow for device
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, can be collected and be stored temporarily extract, then carry 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 pass through pipeline and extraction equipment
(203,204) connect at the top of.
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 is connected with TT＆C system with pH detection means
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, the extract for cleaning oxidant layer is delivered to surge tank；After extracting twice, the aqueous solution of propellant layer is delivered to neutralization reaction
Device, the aqueous solution in nertralizer with propellant layer 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 that propellant is separated 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
Two-layer extract is caused into different equipment respectively, is 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 include：
(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.
As 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, generate the salt of harmless China, 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 can just 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
Stating cooling system includes tool structure 6, and the tool structure 6 is fixedly mounted on 1 upper end of propellant tank, 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
Apply the structure that example simulates propellant tank, 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, being provided with stream in 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 etc..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, is led to
Crossing fluidic heat exchange of fluids carries out heat exchange refrigeration to propellant tank.
Further scheme, the tool structure include top 301 and side wall 302, and upper top 301 is integrated with side wall 302
Molding, 302 lower end of side wall are 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 be 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
On propellant tank, bottom is circular arc protruding upward, and the upper top of tool structure can be horizontally disposed with, and such as be 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 are 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 with the upper end of propellant tank 1 by bolt.
Propellant basin is straight barrel type, is vertically placed, and upper bottom is arc outwardly.Tool structure is simulated completely and is pushed away
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 with propellant tank upper end by bolt.Processing can be easy to, is more convenient for tearing open with material-saving
Unload and install.
Further scheme, the tool structure are 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 etc. can also on tool structure, be connected.
Further scheme, the opening include 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 or cold wind of cooling system with one end, the other end
Directly discharge, cooldown rate is fast；Can also one end be connected with the outlet or air outlet of the cold water or cold wind of cooling system,
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
Spaced reinforcement structure 306, the reinforcement structure 306 and the axis of fluid inlet 303 and fluid issuing 304 are into certain
Angle.
Reinforcement structure can be reinforcement, reinforcement dividing plate etc., can be arranged on top, side wall or while consolidate with both
It is fixed to connect, strengthen 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 are separately positioned near 303 one end of fluid inlet, work at least provided with three
Assembling structure central authorities and close 304 one end of fluid issuing.
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, the lower end of the reinforcing plate with propellant tank 1
The mating surface that upper end is engaged, the upper end of the reinforcing plate are 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 the upper end of reinforcing plate cooperation propellant tank is arranged.The upper bottom of propellant tank be to
The arc of outer protrusion, reinforcing plate are the cuboid on length direction for arc.In the longitudinal direction, one end is fixed with upper top
Connection, the other end are 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
Mouthfuls 304 is exhaust outlet, and the air inlet protrude to the outside of tool structure, the air outlet company with 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 are 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 use during supercharging.
Further scheme：
Tool structure is connected with propellant tank cylinder section upper end by bolt (M10 × 50), 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 are 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 is connect 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, cleaning environmental working condition and contact medium situation are considered when nitrogen heater is designed, be designed as rustless steel explosion-proof
Type, while according to tank purging temperature and flow after cleaning, design heater power, and match 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, three road different pressures output of design, can meet propellant tank cleaning post-purge and
Desirable pressure and filling valve are replaced, valve is overflowed, is let out clearly valve opening desirable pressure scope, 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 carry out remotely monitor in TT＆C system, and then guarantee 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, is provided with sampling pump in thief hatch, while the gas sensor of suitable range is selected 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 intuitively can 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..Each equipment is with one standby under normal circumstances
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, realizes control system operation with closed ring by 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) before contrast cleaning and after cleaning, tank is gone to the bottom and tank wall, 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, not makees any pro forma restriction 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. the vapour phase cleaning system of a kind of propellant tank, it is characterised in that including cooling system, the cooling system includes work
Assembling structure, the tool structure are fixedly mounted on propellant tank upper end, and being formed between tool structure and propellant tank is used for
The heat transfer space of flow of fluid, is exchanged heat to propellant tank by fluidic heat exchange of fluids.
2. a kind of vapour phase cleaning system of propellant tank according to claim 1, it is characterised in that the tool structure
Including upper top and side wall, upper top and side wall integrated molding, the side wall lower ends are tightly connected with propellant tank；Described is upper
Top, heat transfer space for flow of fluid between side wall and propellant tank, is formed, the fluid is cooling medium.
3. the vapour phase cleaning system of a kind of propellant tank according to claim 2, it is characterised in that the upper top it is interior
The distance between outer wall of upper end of wall and propellant tank is not less than 50mm.
4. the vapour phase cleaning system of a kind of propellant tank according to claim 2, it is characterised in that the upper top is circle
Shape flat board, the side wall is annular slab, and the upper end of circular slab periphery and annular slab is seamlessly connected, the annular slab by bolt with
The upper end of propellant tank is fixedly connected.
5. a kind of vapour phase cleaning system of the propellant tank according to claim 1-4 any one, it is characterised in that institute
State tool structure and be provided with opening, on opening, be connected with the pipeline for cooling medium circulation.
6. the vapour phase cleaning system of a kind of propellant tank according to claim 5, it is characterised in that the opening includes
Fluid inlet and fluid issuing, fluid inlet are connected with the inlet ductwork flowed into for cooling medium；
Preferably, the fluid inlet and fluid issuing are separately positioned on the both sides of tool structure and are oppositely arranged.
7. a kind of vapour phase cleaning system of propellant tank according to claim 6, it is characterised in that the tool structure
Inside is provided with multiple spaced reinforcement structures, and the reinforcement structure and the axis of fluid inlet and fluid issuing are into certain
Angle；
Preferably, the reinforcing plate is separately positioned near fluid inlet one end, tool structure central authorities and is leaned at least provided with three
Nearly fluid issuing one end.
8. a kind of vapour phase cleaning system of propellant tank according to claim 7, it is characterised in that the reinforcement structure
For reinforcing plate, the mating surface that the lower end of the reinforcing plate is engaged with the upper end with propellant tank, the reinforcing plate it is upper
End is fixedly connected with the upper top of tool structure, and the side of reinforcing plate is fixedly connected with the side wall of tool structure.
9. the vapour phase cleaning system of a kind of propellant tank according to claim 6, it is characterised in that described cooling is situated between
Matter is cold wind, and the fluid inlet is air inlet, and the fluid issuing is exhaust outlet, and the air inlet is convex to the outside of tool structure
Go out, be connected with the air outlet of cooling system.
10. the vapour phase cleaning system of a kind of propellant tank according to claim 1-9 any one, it is characterised in that
Also there is in the tool structure region for being used to arranging pressure-increasing unit pipeline.
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| CN201611052402.1A CN106583368B (en) | 2016-11-24 | 2016-11-24 | Vapor phase cleaning system of propellant storage tank |
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Cited By (1)
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| CN111114835A (en) * | 2019-12-24 | 2020-05-08 | 兰州空间技术物理研究所 | Liquid propellant supply assembly for electric propulsion and electric propulsion system |
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