CN107140131A - A kind of Low Temperature Liquid Cargo Ships circulate dewfall system - Google Patents
A kind of Low Temperature Liquid Cargo Ships circulate dewfall system Download PDFInfo
- Publication number
- CN107140131A CN107140131A CN201710333981.5A CN201710333981A CN107140131A CN 107140131 A CN107140131 A CN 107140131A CN 201710333981 A CN201710333981 A CN 201710333981A CN 107140131 A CN107140131 A CN 107140131A
- Authority
- CN
- China
- Prior art keywords
- return
- ship
- air
- dewfall
- cargo hold
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B25/00—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby
- B63B25/02—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods
- B63B25/08—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods fluid
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/26—Drying gases or vapours
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/80—Water
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Drying Of Gases (AREA)
- Drying Of Solid Materials (AREA)
Abstract
Dewfall system is circulated the invention discloses a kind of Low Temperature Liquid Cargo Ships, humidity reducing device is dried including ship, the gas outlet that the ship dries humidity reducing device is connected to each cargo hold and dry separation by pipeline, the evacuation port of the cargo hold and the dry separation is connected with cargo hold return-air house steward and dry separation return-air house steward by branch pipe piping respectively, the cargo hold return-air house steward and the dry separation return-air house steward are connected to return-air adjusting apparatus, the return-air adjusting apparatus is connected to the arrival end that the ship dries humidity reducing device, the ship is dried and is provided with bypass switching valve between humidity reducing device and the return-air adjusting apparatus, one entrance of the bypass switching valve is connected with bypass fresh wind tube.The gas of cargo hold/dry separation of low temperature tanker is filled the present invention into cabin pipe and discharge pipe line is connected with compression drying system enclosed, by the return-air adjusting apparatus absorption supplement air based on Venturi tube, ship is dried humidity reducing device inlet gas dew point and constantly circulate reduction.
Description
Technical field
The present invention relates to dewfall technology, more particularly to a kind of Low Temperature Liquid Cargo Ships are dried in Low Temperature Liquid Cargo Ships loading process
Circulate dewfall system.
Background technology
For LNG, the Low Temperature Liquid kinds of goods ships that transport such as LEG, reduction and holding cargo tank/dry separation (such as c-type independence goods
The dry separation in cabin) low dew point value is extremely important, and exist before loading if any exceeded moisture, goods kinds of goods are not only influenceed for cargo hold
Quality, cold cabin temperature-fall period make hydrogenesis into micro- ice influence the operating of liquid pump, or even cause the parts such as the axle envelope of pump
Damage can not be used；If dry separation dew point is too high will to influence heat-insulation layer heat insulation effect with the presence of moisture, it can seriously lose insulation
Effect, therefore before loading dehumidifying dewfall technique must be carried out to cargo hold and dry separation, according to technique and product description requirement, dew
Point, which is generally required, reaches strict standard value, and such as LNG cargo ships cargo hold and the requirement of dry separation are maintained at -50 DEG C to -60 DEG C even
Lower temperature, the air compressor system and drying machine dewfall equipment that current Low Temperature Liquid Cargo Ships are typically carried using this ship are to goods
Cabin or dry separation carry out dewfall and rush cabin operation, therefore cargo tank and dry separation drying process operation are Low Temperature Liquid Cargo Ships loading works
The important component of industry.
Current tanker oceangoing ship fills cabin dewfall and is widely used that unidirectional open operation technique method, and surrounding air is compressed
After machine compression, handled by dried-air drier dewfall and be discharged into cargo hold or dry separation, cargo hold and dry separation pass through floss hole free end
Idle discharge is put and fills cabin gas, this unidirectional open dewfall is filled under the pattern of cabin, cabin is filled with certain pressure by what dewfall was handled
Gas directly emptying causes the wasting of resources, and tanker oceangoing ship must be equipped with the drying dewfall equipment of high-quality Large Copacity, pass through phase
When rushing for time pretends industry, dew point is repeatedly measured, just can confirm that after stablizing and reach dewfall target, based on experience value, typically use
The calibrating gas replacement amount of three times or more multiples just can guarantee that punching dress effect, and some Tropical Ocean Area areas are because of hot humid ring
Border dewfall dehumidification process will digest the longer time.For example：The cargo hold in one single 8000 cubic metres of cabin is made if necessary to dewfall
Using 1000 cubic metres of dewfall point devices hourly under industry, conventional environment, in theory by be up to more than 3 times 8000 cubes
Cabin operation was filled no less than 24 hours and can be only achieved standard requirement.
If drying process exceeds the treating capacity of drying machine, or the factor such as environment ambient humidity is excessive, ship is by itself gas
Body dewfall drying equipment disposal ability is limited, and for the LNG of medium-and-large-sized volume of compartment, LEG ships, dewfall process operation is accomplished by continuing
Time is longer, and dewfall effect is unstable, LNG, and LEG ship dew point testing values have strict standard, and ship is often because of ship dewfall
Process operation length and have a strong impact on the shipping transport time and loading efficiency.Such gas is dried many because using absorbed type drying simultaneously
Machine form (or blotting integrated mode), equipment energy consumption and absorption filter service life condition will be also faced because long-time is used
Limitation.
The content of the invention
The purpose of the present invention be overcome it is of the prior art it is not enough there is provided one kind for Low Temperature Liquid Cargo Ships cargo hold and it is dry every
The closed cycle dewfall system in cabin, the system by the gas of the cargo hold of low temperature tanker/dry separation fill cabin pipe and discharge pipe line and
Compression drying system enclosed is connected, and by the return-air adjusting apparatus absorption supplement air based on Venturi tube, does ship
Dry humidity reducing device inlet gas dew point constantly circulates reduction.
The technical solution adopted in the present invention is：A kind of Low Temperature Liquid Cargo Ships circulate dewfall system, including ship dries drop
Wet device, the gas outlet that the ship dries humidity reducing device is connected to each cargo hold and dry separation, the goods by pipeline
The evacuation port of cabin and the dry separation is connected with cargo hold return-air house steward and dry separation return-air house steward by branch pipe piping respectively, described
Cargo hold return-air house steward and the dry separation return-air house steward are connected to return-air adjusting apparatus, and the return-air adjusting apparatus is connected to institute
The arrival end that ship dries humidity reducing device is stated, the ship is dried and is provided with side between humidity reducing device and the return-air adjusting apparatus
Cross valve a, entrance of the bypass switching valve is connected with bypass fresh wind tube.
The return-air adjusting apparatus is flat including what is be connected with the cargo hold return-air house steward and the dry separation return-air house steward
Weigh valve, and the one outlet of the balanced valve is connected with Venturi tube, air filter and pressure balancing tank in turn；The pressure balance
One gas outlet of tank is connected to the arrival end that the ship dries dewfall device.
The delivery port of delivery port and the air filter that the ship dries humidity reducing device is commonly connected to condensed water and put
Residual pipeline.
The ship dries another gas outlet of humidity reducing device, another gas outlet of the pressure balancing tank and described
Another outlet of balanced valve is commonly connected to blow-down pipe.
The gas supplementing opening of the Venturi tube is connected with tonifying Qi fresh wind tube, the tonifying Qi fresh wind tube and is provided with regulating valve.
Gas vent is provided with the cargo hold return-air house steward.
The beneficial effects of the invention are as follows：
1. in the present invention, the evacuation port (or vent line of dry separation) of tanker oceangoing ship cargo tank is passed through into returning for setting up
Gas fluid line is connected to ship and dries humidity reducing device entrance, enables to fill the dry gas behind cabin and recycles, progressively reaches
Dewpoint requirements, accelerate ship and dry dewfall operating speed, dewfall feature substantially, improves dewfall efficiency.Ensure big volume of compartment gas
The dewfall quality of body, saves the ship dewfall process time, and facility is provided for Ship production operation.
2. the present invention uses close-cycle process, the gas behind cabin is made full use of, by the cargo hold that is connected with cabin/dry
Separation backflow piping is reclaimed, it is to avoid have quality to fill the waste of cabin gas, is saved ship and is dried humidity reducing device energy consumption, reduces
Ship dries the load of humidity reducing device, extends the service life of drying machine, reduces integral device operation and maintenance cost.
3. in the present invention, enter in reflux gas before ship dries humidity reducing device and add return-air adjusting apparatus, return-air is adjusted
Engagement positions are made up of the equipment such as balanced valve and Venturi tube, and the flow and pressure for realizing adaptation suction port of compressor are automatically adjusted,
The stability of a system is high.
4. the present invention implements simple, maximum dries the existence conditions of humidity reducing device using original ship, in original ship gas
Transformation amount is small on body dewfall drying system, and facility is implemented in transformation, and cost is relatively low.
5. in the present invention, cabin gas is filled using uniform effluent mouthful concentrated area discharge cargo tank/dry separation, oxygen content is prevented
The too low or poisonous and hazardous cabin gas that fills surprisingly spreads.
6. in the present invention, return-air adjusting apparatus and original ship are dried into humidity reducing device and connected nearby, exist together same cabin,
The convenience operated with and security are realized, spot ship transformation is easy to be realized.
7. in the present invention, increase bypass switching valve and bypass fresh wind tube, can be achieved before ship dries humidity reducing device entrance
To the bypass action for the adjusting apparatus that flows back in ship dewfall operation.
Brief description of the drawings
Fig. 1：Schematic structural view of the invention；
Fig. 2：Return-air adjusting apparatus structural representation in the present invention.
Accompanying drawing is marked：1st, dry separation return-air house steward；2nd, cargo hold return-air house steward；3rd, return-air adjusting apparatus；4th, switching valve is bypassed；
5th, tonifying Qi fresh wind tube；6th, fresh wind tube is bypassed；7th, cargo hold return-air arm piping；8th, dry separation return-air arm piping；9th, blow-down pipe；
10th, ship dries humidity reducing device；11st, gas vent；12nd, condensed water puts residual pipeline；13rd, balanced valve；14th, Venturi tube；15th, air
Filter；16th, pressure balancing tank；17th, regulating valve.
A, cargo hold；B, dry separation；C, air compressor machine drier room.
Embodiment
The invention will be further described below in conjunction with the accompanying drawings.
As shown in Figures 1 and 2, a kind of Low Temperature Liquid Cargo Ships circulation dewfall system, including ship dry humidity reducing device 10,
The gas outlet that the ship dries humidity reducing device 10 is connected to each cargo hold A and dry separation B, the cargo hold A by pipeline
Cargo hold is connected to by cargo hold return-air arm piping 7 and dry separation return-air arm piping 8 respectively with the evacuation port of the dry separation B
Gas vent 11 is provided with return-air house steward 2 and dry separation return-air house steward 1, the cargo hold return-air house steward 2.The cargo hold return-air house steward
2 and the dry separation return-air house steward 1 be connected to return-air adjusting apparatus 3, the return-air adjusting apparatus 3 is connected to the ship and done
The arrival end of dry humidity reducing device 10, the ship is dried and is provided with bypass between humidity reducing device 10 and the return-air adjusting apparatus 3
Switching valve 4 a, entrance of the bypass switching valve 4 is connected with bypass fresh wind tube 6.Wherein, the return-air adjusting apparatus 3 includes
The balanced valve 13 being connected with the cargo hold return-air house steward 2 and the dry separation return-air house steward 1, one of the balanced valve 13 goes out
Mouth is connected with Venturi tube 14, air filter 15 and pressure balancing tank 16 in turn；One gas outlet of the pressure balancing tank 16
The arrival end that the ship dries dewfall device is connected to, the gas supplementing opening of the Venturi tube 14 is connected with tonifying Qi fresh wind tube 5, institute
State and regulating valve 17 is provided with tonifying Qi fresh wind tube 5.The ship dries the delivery port and the air filter 15 of humidity reducing device 10
Delivery port be commonly connected to condensed water and put residual pipeline 12.The ship dries another gas outlet, described of humidity reducing device 10
Another gas outlet of pressure balancing tank 16 and another outlet of the balanced valve 13 are commonly connected to blow-down pipe 9.
In the present invention, the return-air adjusting apparatus 3 and ship drying humidity reducing device 10 are co-located on air compressor machine and done
Dry device room C, realizes the convenience operated with and security.
In the present invention, cargo hold of having connected/dry separation gas relief line forms cargo hold/dry separation return-air arm piping 7/8 respectively,
And cargo hold/dry separation return-air arm piping 7/8 is connected on cargo hold/dry separation return-air house steward 1/2, cargo hold/dry every
In the compression drying gas replenishment process of cabin, dry humidity reducing device 10 with ship and constantly fill cabin pressurization to the dry separation B of cargo hold A/, make goods
Pressure in cabin/dry separation return-air house steward 1/2 gradually strengthens, because of 3 pairs of Asias of return-air adjusting apparatus containing the equipment of Venturi tube 14
The reflux gas flow through venturi 14 of velocity of sound has the effect of decompression dewfall and produces negative-pressure adsorption effect, and absorption is come from into tonifying Qi tonifying Qi
Supplement fresh air in fresh wind tube 5, mixed gas enters back into ship by air filter 15 and dries entering for humidity reducing device 10
Mouthful, circulation re-dry process is so formed, until air dew point reaches acceptance value, mixed gas dries humidity reducing device by ship
Before 10 during filter, because of antihypertensive effect, the operation starting stage can be put residual pipe 9 if any condensed water by condensed water and be discharged.As because
The reasons such as maintenance are, it is necessary to which when being bypassed to return-air adjusting apparatus 3, it is new that rotation bypass conversion valve 4 allows fresh air to be directly entered bypass
Airduct 6 enter ship dry humidity reducing device 10, while open blow-down pipe 9 to the dry separation B gases of cargo hold A/ carry out concentrate emptying or
Person is independently vented through the former floss hole in each cabin.
Tanker oceangoing ship typically carries out single cabin operation, and present system can keep higher lock pressure and back pressure, for text
The absorption of venturi 14 fresh air will produce more obvious effect.Ship dries the inlet pressure of humidity reducing device 10 and flow equilibrium, can be with
The generation for preventing ship to dry the negative pressure of humidity reducing device 10 is automatically adjusted according to the ship drying inlet pressure of humidity reducing device 10,
Return-air adjusting apparatus 3 is additionally provided with air filter 15 and pressure surge tank, keeps the backflow entered before ship drying humidity reducing device 10
Gas is pure and pressure stability.
The present invention has considered the running environment and safety requirements of Low Temperature Liquid Cargo Ships cargo hold A pretreatments, the system structure
Into with functionally can separation B dry to cargo tank A/ provide convenience and economy in dewfall processing operation, reduce ship
Freight operation time, provide convenient for shipping transport.
Claims (6)
1. a kind of Low Temperature Liquid Cargo Ships circulate dewfall system, including ship dries humidity reducing device, and the ship dries humidity reducing device
A gas outlet each cargo hold and dry separation are connected to by pipeline, it is characterised in that the cargo hold and the dry separation
Evacuation port is connected with cargo hold return-air house steward and dry separation return-air house steward, the cargo hold return-air house steward and institute by branch pipe piping respectively
State dry separation return-air house steward and be connected to return-air adjusting apparatus, the return-air adjusting apparatus is connected to the ship and dries wet down dress
The arrival end put, the ship is dried and is provided with bypass switching valve, the side between humidity reducing device and the return-air adjusting apparatus
One entrance of cross valve is connected with bypass fresh wind tube.
2. Low Temperature Liquid Cargo Ships circulate dewfall system according to claim 1, it is characterised in that the return-air adjusting apparatus bag
Include the balanced valve being connected with the cargo hold return-air house steward and the dry separation return-air house steward, the one outlet of the balanced valve according to
It is secondary to be connected with Venturi tube, air filter and pressure balancing tank；One gas outlet of the pressure balancing tank is connected to the ship
Oceangoing ship dries the arrival end of dewfall device.
3. Low Temperature Liquid Cargo Ships circulate dewfall system according to claim 2, it is characterised in that the ship dries wet down dress
The delivery port and the delivery port of the air filter put are commonly connected to condensed water and put residual pipeline.
4. Low Temperature Liquid Cargo Ships circulate dewfall system according to claim 2, it is characterised in that the ship dries wet down dress
The common connection in another outlet for another gas outlet, another gas outlet of the pressure balancing tank and the balanced valve put
To blow-down pipe.
5. Low Temperature Liquid Cargo Ships circulate dewfall system according to claim 2, it is characterised in that the tonifying Qi of the Venturi tube
Mouth, which is connected with tonifying Qi fresh wind tube, the tonifying Qi fresh wind tube, is provided with regulating valve.
6. Low Temperature Liquid Cargo Ships circulate dewfall system according to claim 1, it is characterised in that on the cargo hold return-air house steward
It is provided with gas vent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710333981.5A CN107140131B (en) | 2017-05-12 | 2017-05-12 | Low-temperature liquid cargo ship circulating dew-lowering system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710333981.5A CN107140131B (en) | 2017-05-12 | 2017-05-12 | Low-temperature liquid cargo ship circulating dew-lowering system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107140131A true CN107140131A (en) | 2017-09-08 |
| CN107140131B CN107140131B (en) | 2023-06-23 |
Family
ID=59777585
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710333981.5A Active CN107140131B (en) | 2017-05-12 | 2017-05-12 | Low-temperature liquid cargo ship circulating dew-lowering system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107140131B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113636059A (en) * | 2021-09-03 | 2021-11-12 | 上海船舶研究设计院（中国船舶工业集团公司第六0四研究院） | Single dehumidifier double or multiple cargo compartment dehumidification system |
| CN115556876A (en) * | 2022-09-27 | 2023-01-03 | 沪东中华造船(集团)有限公司 | Chemical tanker cargo hold evaporation gas recovery system and use method thereof |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB501269A (en) * | 1936-05-23 | 1939-02-20 | Mark Ralph Colby | Method of and apparatus for preventing damage to cargo in cargo compartments |
| US2160831A (en) * | 1939-03-29 | 1939-06-06 | Colby | Method of and apparatus for preventing damage to cargo in cargo compartments |
| GB622457A (en) * | 1942-07-02 | 1949-05-03 | Svenska Flaektfabriken Ab | Process for the prevention of damage by moisture to goods stored in cargo vessel holds and the like |
| GB706045A (en) * | 1951-09-05 | 1954-03-24 | British Oxygen Co Ltd | Improvements in or relating to the drying of gases |
| GB757424A (en) * | 1954-04-02 | 1956-09-19 | C U R A Patents Ltd | An improved method of and apparatus for removing water from gases |
| DE1291497B (en) * | 1960-09-27 | 1969-03-27 | Colvin Oliver Dyer | Method and device for preventing damage caused by sweating on cargo in storage rooms of ships, railroad cars and the like. like |
| SU1074570A1 (en) * | 1982-03-19 | 1984-02-23 | Производственно-техническое предприятие Специализированного треста "Укрэнергочермет" | Apparatus for cleaning gases |
| JPS62162880A (en) * | 1986-01-08 | 1987-07-18 | 豊国工業株式会社 | Method of controlling dried air |
| JPH085244A (en) * | 1994-06-17 | 1996-01-12 | Mitsubishi Heavy Ind Ltd | Freight tank automatic drying control device for chemical tanker |
| JPH11342897A (en) * | 1998-06-03 | 1999-12-14 | Takuma Co Ltd | Hold drying system and ship provided with this system |
| CN206813257U (en) * | 2017-05-12 | 2017-12-29 | 中国海洋石油总公司 | A kind of Low Temperature Liquid Cargo Ships circulate dewfall system |
-
2017
- 2017-05-12 CN CN201710333981.5A patent/CN107140131B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB501269A (en) * | 1936-05-23 | 1939-02-20 | Mark Ralph Colby | Method of and apparatus for preventing damage to cargo in cargo compartments |
| US2160831A (en) * | 1939-03-29 | 1939-06-06 | Colby | Method of and apparatus for preventing damage to cargo in cargo compartments |
| GB622457A (en) * | 1942-07-02 | 1949-05-03 | Svenska Flaektfabriken Ab | Process for the prevention of damage by moisture to goods stored in cargo vessel holds and the like |
| GB706045A (en) * | 1951-09-05 | 1954-03-24 | British Oxygen Co Ltd | Improvements in or relating to the drying of gases |
| GB757424A (en) * | 1954-04-02 | 1956-09-19 | C U R A Patents Ltd | An improved method of and apparatus for removing water from gases |
| DE1291497B (en) * | 1960-09-27 | 1969-03-27 | Colvin Oliver Dyer | Method and device for preventing damage caused by sweating on cargo in storage rooms of ships, railroad cars and the like. like |
| SU1074570A1 (en) * | 1982-03-19 | 1984-02-23 | Производственно-техническое предприятие Специализированного треста "Укрэнергочермет" | Apparatus for cleaning gases |
| JPS62162880A (en) * | 1986-01-08 | 1987-07-18 | 豊国工業株式会社 | Method of controlling dried air |
| JPH085244A (en) * | 1994-06-17 | 1996-01-12 | Mitsubishi Heavy Ind Ltd | Freight tank automatic drying control device for chemical tanker |
| JPH11342897A (en) * | 1998-06-03 | 1999-12-14 | Takuma Co Ltd | Hold drying system and ship provided with this system |
| CN206813257U (en) * | 2017-05-12 | 2017-12-29 | 中国海洋石油总公司 | A kind of Low Temperature Liquid Cargo Ships circulate dewfall system |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113636059A (en) * | 2021-09-03 | 2021-11-12 | 上海船舶研究设计院（中国船舶工业集团公司第六0四研究院） | Single dehumidifier double or multiple cargo compartment dehumidification system |
| CN115556876A (en) * | 2022-09-27 | 2023-01-03 | 沪东中华造船(集团)有限公司 | Chemical tanker cargo hold evaporation gas recovery system and use method thereof |
| CN115556876B (en) * | 2022-09-27 | 2024-06-11 | 沪东中华造船(集团)有限公司 | Chemical carrier cargo hold evaporation gas recovery system and use method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107140131B (en) | 2023-06-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206813257U (en) | A kind of Low Temperature Liquid Cargo Ships circulate dewfall system | |
| RU2008131786A (en) | AIR QUALITY IMPROVEMENT SYSTEM IN AIRCRAFT SEALED CAB | |
| CN106218847B (en) | The ventilative masting parts of LNG and the ship comprising it | |
| CN107140131A (en) | A kind of Low Temperature Liquid Cargo Ships circulate dewfall system | |
| CN107833648A (en) | The more control area vacuum control systems of ocean nuclear power platform and control method | |
| CN206395824U (en) | A kind of totally enclosed hydrochloric acid tank car handler | |
| CN206782015U (en) | A kind of large-scale low-temperature tanker oceangoing ship circulates dewfall return-air adjusting apparatus | |
| CN107140132A (en) | A kind of large-scale low-temperature tanker oceangoing ship circulates dewfall return-air adjusting apparatus | |
| CN108575343B (en) | Low-energy-consumption nitrogen-charging grain storage system | |
| CN207633410U (en) | A kind of tap water flow control system | |
| CN218130988U (en) | Oil gas recovery device | |
| CN205988659U (en) | A kind of hydrochloric acid mist retracting device | |
| CN104285541B (en) | The efficient priming device of continous way seed | |
| CN113292124A (en) | Ash conveying device and method based on spray drying tower wastewater evaporation treatment technology | |
| CN203922724U (en) | A kind of energy-saving oxygen nitrogen all-in-one | |
| CN113142629A (en) | Humidifying water supercharging device of vacuum damping machine | |
| CN204963523U (en) | Simple and easy adsorption dryer of type variable blast volume is led to to side | |
| CN206496586U (en) | A kind of energy recycle device | |
| CN207329327U (en) | A kind of concentrated sulfuric acid storage tank | |
| CN204923800U (en) | Simple and easy adsorption dryer of bypass type variable blast volume | |
| CN204923712U (en) | Simple and easy adsorption dryer of power type variable blast volume | |
| CN211568942U (en) | Gas-phase oil gas breathing recovery system of normal-pressure storage tank | |
| CN205497437U (en) | Equipment is placed to valve temporarily | |
| CN208777371U (en) | Variable frequency non-negative pressure water | |
| CN205876737U (en) | LNGL CNG gas station and immersed pump device thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 100010 marine Oil Mansion, 25 Chaoyangmen North Street, Dongcheng District, Beijing. Applicant after: CHINA NATIONAL OFFSHORE OIL Corp. Applicant after: CNOOC ENERGY TECHNOLOGY & SERVICES Ltd. Applicant after: CNOOC ENERGY TECHNOLOGY & SERVICES-OIL PRODUCTION SERVICES Co. Address before: 100010 marine Oil Mansion, 25 Chaoyangmen North Street, Dongcheng District, Beijing. Applicant before: CHINA NATIONAL OFFSHORE OIL Corp. Applicant before: CNOOC ENERGY TECHNOLOGY & SERVICES Ltd. Applicant before: CNOOC ENERGY TECHNOLOGY & SERVICES-OIL PRODUCTION SERVICES Co. |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant |