CN201412120Y - Solar power warming system for oil field wellhead - Google Patents
Solar power warming system for oil field wellhead Download PDFInfo
- Publication number
- CN201412120Y CN201412120Y CN 200920096888 CN200920096888U CN201412120Y CN 201412120 Y CN201412120 Y CN 201412120Y CN 200920096888 CN200920096888 CN 200920096888 CN 200920096888 U CN200920096888 U CN 200920096888U CN 201412120 Y CN201412120 Y CN 201412120Y
- Authority
- CN
- China
- Prior art keywords
- heat
- pump
- solar energy
- temperature
- control module
- 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.)
- Expired - Lifetime
Links
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/40—Solar thermal energy, e.g. solar towers
Landscapes
- Heat-Pump Type And Storage Water Heaters (AREA)
Abstract
The utility model relates to a solar power warming system for an oil field wellhead, which comprises a heat exchanging water tank and a water replenishing unit, and the originality thereof lies in that the utility model comprises a solar collector and a heat pump hot water unit communicated in a circulating manner with the heat exchanging water tank through respective circulating pipelines, a solar power circulating pump is mounted on the circulating pipeline of the solar collector, a heat pump circulating pump is mounted on the circulating pipeline of the heat pump hot water unit, all the solar power circulating pump, the heat pump hot water unit and the heat pump circulating pump are connected with a control unit and are controlled by the control unit to complete the continuous warming on the heat exchanging water tank. The utility model with scientific and reasonable design combines the advantages of the two environmental protection type energy equipment, namely, the solar collectorand the heat pump hot water unit into a whole, heats the heat carrier medium in the circulating pipeline in the way of closed circulation, and realizes the continuous heating of the medium in the wellhead oil pipeline of the heat exchanging tank under the automatic control of the control unit, and the utility model has the remarkable advantages of energy saving, high efficiency and environmentalprotection.
Description
Technical field
The utility model relates to the oil field shaft mouth heating apparatus, particularly a kind of oil field shaft mouth solar energy heating system.
Background technology
Well head petroleum pipeline in the oilfield process is provided with heating apparatus usually, has necessary flowability to guarantee crude oil.Present employed heating apparatus mostly is greatly with the associated gas to be the water jacket furnace of fuel or to be electric heater of the energy etc. with the electric energy.Water jacket furnace exists that the thermal efficiency is low, energy consumption is high, body of heater easily produces the drawbacks such as damage, maintenance maintenance cost height of ablating, and institute's exhaust gas discharged pollutes environment in the associated gas combustion process.Electric heater directly is laid on the petroleum pipeline mostly, in use has the power consumption height, easily has a power failure, frequently sweeps drawbacks such as pipe, cost height.More than two types heater all do not meet the guilding policy of present China energy-saving and environmental protection.
Summary of the invention
Technical problem to be solved in the utility model is to overcome the deficiencies in the prior art, and the oil field shaft mouth solar energy heating that a kind of cost is low, energy consumption is little, pollution-free, safe in utilization system is provided.
The utility model solves the problems of the technologies described above takes following technical scheme to realize:
A kind of oil field shaft mouth solar energy heating system, comprise heat-exchanging water tank and moisturizing unit, on heat-exchanging water tank, be shaped on the heavy oil import and the heavy oil outlet that are connected with set oil transportation coil pipe in it, it is characterized in that: also comprise a solar energy collector and a heat-pump hot-water unit, solar energy collector and heat-pump hot-water the unit all circulation line by separately are communicated with the heat-exchanging water tank circulation, the solar energy circulation pump is installed on the circulation line of solar energy collector, the heat pump cycle pump is installed, the solar energy circulation pump on the circulation line of heat-pump hot-water unit, heat-pump hot-water unit and heat pump cycle pump all be connected with control module and by control module control finish the heat exchanging water tank continue heat.
And, an electric heater and a heat cycles pump are installed in heat-exchanging water tank, this electric heater and heat cycles pump all are connected with control module.
And described control module comprises PLC, solar energy heating control module, heat pump heat control module and overcurrent, overload, lack detection circuit, wherein:
The solar energy heating control module is made of temperature difference control module and antifreeze control module, temperature difference control module is made of the two temperatures sensor that is installed in the solar energy collector entery and delivery port and first temperature controller, the two temperatures sensor all is connected with the input port of PLC, the delivery outlet of PLC is connected with first temperature controller, first temperature controller is connected with the solar energy circulation pump, according to the start and stop of two temperatures sensor temperature difference control solar energy circulation pump; Antifreeze control module is made of three-temperature sensor, second temp control switch, three-temperature sensor is installed on the water inlet of solar energy collector, the output of three-temperature sensor is connected with the input port of PLC, the delivery outlet of PLC is connected with second temperature controller respectively, and the output of second temperature controller is connected with the solar energy circulation pump;
The heat pump control module of heating is made of the 4th temperature pick up, the 3rd temperature controller and very first time controller, the 4th temperature pick up is installed on the delivery port of heat-exchanging water tank, its output is connected with the input port of PLC, the delivery outlet of PLC is connected with the 3rd temperature controller, the output of the 3rd temperature controller is connected with very first time controller, and the output of very first time controller is connected with heat-pump hot-water unit and heat pump cycle pump.
And, described control module also comprises the electrical heating control module, this electrical heating control module is by the 5th temperature pick up, the 6th temperature pick up, second time controller, the 3rd time controller, the 4th temperature controller, the 5th temperature controller, first electric heater, second electric heater, fluid level controller and time-delay relay constitute, the 5th temperature pick up, the 6th temperature pick up is installed in the heat-exchanging water tank, and be connected with the input port of PLC by second time controller and the 3rd time controller respectively, the delivery outlet of PLC is respectively by the 4th temperature controller and the 5th temperature controller and first electric heater that is installed in the heat-exchanging water tank, second electric heater is connected, first electric heater and second electric heater also all are connected with fluid level controller and time-delay relay, and the delivery outlet of PLC is connected with the heat cycles pump.
Advantage of the present utility model and good effect are:
1. this oil field shaft mouth solar energy heating system, adopting solar energy collector is that heat-exchanging water tank heats for the main energy sources generator, adopt the heat-pump hot-water unit as auxiliary heat energy generator simultaneously, when the illumination deficiency occurring, when the thermal source that solar energy collector provided can't reach the heating heat-exchanging water tank to set point of temperature, control module can be controlled the unlatching of air-energy Teat pump boiler automatically, continuing as heat-exchanging water tank heats, to reach heating lastingly to well head oil pipeline medium, this heating system can reduce energy consumption significantly, it only is about 18,000 yuan that year consumes the electricity charge, save 150,000 yuan of funds than electric heater before improving, can significantly save production cost thus, increase economic efficiency.
2. this oil field shaft mouth solar energy heating system, also be provided with the electric heater group in the heat-exchanging water tank, when insufficient light and heat-pump hot-water unit break down and can't operate as normal, control module is an opening electric heater, for heat-exchanging water tank carries out electrical heating, with intermittently not heating of further assurance heat-exchanging water tank.
3. this oil field shaft mouth solar energy heating system adopts solar energy collector as main thermal source, adopt the heat-pump hot-water unit as auxiliary thermal source simultaneously, the two is clear energy sources, thereby avoided adopting fuel combustion such as associated gas as environment pollution that thermal source caused, and energy consumption is extremely low, meets that China is energy-conservation at present, the fundamental policies of reduction of discharging, environmental protection.
4. more original heating furnace of this oil field shaft mouth solar energy heating system and electric heater have advantage safe in utilization, that do not have any potential safety hazard, long service life, for ease of maintenaince safeguard, on the basis of economize on electricity 60%, guarantee 100% safety.
5. the utility model design science is reasonable, integrate solar energy collector and heat-pump hot-water unit two big environment-friendly type energy device advantages, form with closed cycle heats heat-carrying agent in the circulation line, automatically realize heating lastingly under the control by heat-exchanging water tank at control module to well head pipeline road medium, has outstanding advantage energy-conservation, efficient, environmental protection, economic benefit is obvious, having advantages such as floor space is little, easy to operate simultaneously, is a kind of oil field shaft mouth heating system that has than high innovation character.
Description of drawings
Fig. 1 is the block diagram of the utility model heating system;
Fig. 2 is the utility model control principle block diagram.
The specific embodiment
For making the purpose of this utility model, technical scheme and advantage clearer, below with reference to the accompanying drawing embodiment that develops simultaneously, the utility model is further described.
A kind of oil field shaft mouth solar energy heating system comprises heat-exchanging water tank and moisturizing unit, is shaped on the heavy oil import and the heavy oil outlet that are connected with set oil transportation coil pipe in it on heat-exchanging water tank.The moisturizing unit comprises a water supply tank, and this water supply tank is connected with heat-exchanging water tank by water pipe.
The innovation part of this oil field shaft mouth solar energy heating system is:
Also comprise a solar energy collector, this solar energy collector is communicated with heat-exchanging water tank by its circulation line, and the solar energy circulation pump is installed on the circulation line of solar energy collector.Simultaneously, also comprise the heat-pump hot-water unit, the heat-pump hot-water unit also is communicated with the heat-exchanging water tank circulation by its circulation line, and the heat pump cycle pump is installed on the circulation line of heat-pump hot-water unit.Solar energy circulation pump, heat-pump hot-water unit and heat pump cycle pump all are connected with control module, and by control module control finish the heat exchanging water tank continue heat.The thermal-collecting tube of solar energy collector adopts metal superconduction vacuum solar heat-collecting pipe, improve more than 20% than regular solar thermal-collecting tube efficient, and, truly accomplish to make full use of the purpose of solar energy at overcast and rainy 40% heat energy fine day can be produced equally the time.
And, an electric heater and a heat cycles pump also are installed in heat-exchanging water tank, this electric heater and heat cycles pump all are connected with control module.
Control module comprises PLC, solar energy heating control module 1, heat pump heat control module 2 and overload, lack detection circuit, wherein:
The solar energy heating control module is made of temperature difference control module and antifreeze control module.Temperature difference control module is made of first temperature pick up, second temperature pick up, first temperature controller, and first temperature pick up is installed on the delivery port of solar energy collector, and second temperature pick up is installed on the water inlet of solar energy collector.First temperature pick up, second temperature pick up all are connected with the input port of PLC, and the delivery outlet of PLC is connected with first temperature controller, and first temperature controller is connected with the solar energy circulation pump.Start and stop according to two temperatures sensor temperature difference control solar energy circulation pump.
At illumination condition preferably under the situation, heat collector is under solar irradiation, water temperature constantly raises, be installed in first temperature pick up of solar energy collector water inlet and delivery port and second low-temperature values that temperature pick up has collected and high temperature values respectively and promptly produce the temperature difference this moment, when temperature approach reaches the controlling value (the 0-10 degree can be adjusted) of PLC setting, first temperature controller is often opened the node closure, and the solar energy circulation pump starts; When the water circulation in the circulation line of solar energy collector when not having the temperature difference, the first temperature controller closing point disconnects, the solar energy circulation pump quits work.Thus, realize the temperature difference control of solar energy collector.
Antifreeze control module is made of three-temperature sensor, second temp control switch.Three-temperature sensor is installed on the water inlet of solar energy collector, the output of three-temperature sensor is connected with the input port of PLC, the delivery outlet of PLC is connected with second temperature controller respectively, and the output of second temperature controller is connected with the solar energy circulation pump.
The temperature value that collects when three-temperature sensor is lower than low temperature controlling value (the 0-5 degree that sets, can adjust) time, second temperature controller is often opened the node closure, the solar energy circulation pump starts, when being circulated to design temperature, the second temperature controller closing point disconnects, and the solar energy circulation pump quits work.Thus, realize the antifreeze control of solar energy collector.
The heat pump control module of heating is made of the 4th temperature pick up, the 3rd temperature controller and very first time controller, the 4th temperature pick up is installed on the delivery port of heat-exchanging water tank, its output is connected with the input port of PLC, the delivery outlet of PLC is connected with the 3rd temperature controller, the output of the 3rd temperature controller is connected with very first time controller, and the output of very first time controller is connected with heat-pump hot-water unit and heat pump cycle pump.
The 4th temperature pick up detects heat-exchanging water tank outlet temperature value automatically, when the heat-exchanging water tank outlet temperature is lower than design temperature (45 degree, return difference 5 degree can be adjusted), the 3rd temperature controller is often opened the node closure, system starts the heat-pump hot-water unit, while heat pump cycle pump startup, system's forced circulation; When the heat-exchanging water tank outlet temperature reached the highest control temperature of setting, the 3rd temperature controller node disconnected, and the heat-pump hot-water unit stops heating, and the heat pump cycle pump stops simultaneously.Simultaneously, control the working time (0-24 hour, can adjust) of heat-pump hot-water unit and heat pump cycle pump by very first time controller.Thus, realize the auxiliary heating of heat-pump hot-water unit.
Control module also comprises electrical heating control module 3, this electrical heating control module is by the 5th temperature pick up, the 6th temperature pick up, second time controller, the 3rd time controller, the 4th temperature controller, the 5th temperature controller, first electric heater, second electric heater, fluid level controller and time-delay relay constitute, the 5th temperature pick up, the 6th temperature pick up is installed in the heat-exchanging water tank, and be connected with the input port of PLC by second time controller and the 3rd time controller respectively, the delivery outlet of PLC is respectively by the 4th temperature controller and the 5th temperature controller and first electric heater that is installed in the heat-exchanging water tank, second electric heater is connected, first electric heater and second electric heater also all are connected with fluid level controller and time-delay relay, and the delivery outlet of PLC is connected with the heat cycles pump.
When the heat pump fault is out of service, in the second time controller scope, the temperature value that the 5th temperature pick up is collected is lower than minimum control temperature value (50 degree of setting, can adjust) time, the 4th temperature controller often open the node closure, system starts first electric heater, while heat cycles pump startup, system's forced circulation; When the temperature of heat-exchanging water tank reached the highest control temperature of setting (75 degree can be adjusted), system stopped first electric heater, and the heat cycles pump stops.In the 3rd time controller scope, when the detected temperature of the 6th temperature pick up is lower than minimum control temperature value (50 degree can be adjusted), the 5th temperature controller is often opened the node closure, system starts second electric heater, while heat cycles pump startup, system's forced circulation; When heat-exchanging water tank reaches the highest control temperature value of setting (75 degree, can adjust), system stops second electric heater, and the heat cycles pump stops simultaneously.First electric heater and second electric heater also are subjected to the control of fluid level controller and time-delay relay.Thus, realize the auxiliary electrical heating of heat-exchanging water tank.
The moisturizing unit also comprises the moisturizing electromagnetic valve that is arranged on the water pipe, and the moisturizing electromagnetic valve is connected with the delivery outlet of PLC, carries out automatic water supplement by the fluid level controller control heat exchanging water tank that is installed in the water tank.Overcurrent, overload, lack detection circuit realize that the automatic safe of system is out of service.Control module also is provided with intelligent alarm function, on-line parameter is set and adjusted function, writing function etc.
Operating principle of the present utility model is:
The weather of sunlight is being arranged, and by solar energy collector heating heat-exchanging water tank, the medium of water tank is through rising to 80 degree after heating.Do not having under the weather condition of the sun, be transformed into the heat-pump hot-water unit and heat, medium temperature is promoted to 70 degree in the heat-exchanging water tank.Heat transferring medium in this temperature is spent the heating crude oil to 60 in the oil transportation coil pipe.Then keep the water temperature of heat-exchanging water tank at 70 degree, so that the operate as normal of heat-exchanging water tank by the heat-pump hot-water unit evening.When there not being the sun, and heat pump is heated by electrical heating heat exchanging water tank when breaking down.This shows that no matter under which kind of weather condition, this heating system all can satisfy user demand safely, efficiently.
Claims (4)
1. oil field shaft mouth solar energy heating system, comprise heat-exchanging water tank and moisturizing unit, on heat-exchanging water tank, be shaped on the heavy oil import and the heavy oil outlet that are connected with set oil transportation coil pipe in it, it is characterized in that: also comprise a solar energy collector and a heat-pump hot-water unit, solar energy collector and heat-pump hot-water the unit all circulation line by separately are communicated with the heat-exchanging water tank circulation, the solar energy circulation pump is installed on the circulation line of solar energy collector, the heat pump cycle pump is installed, the solar energy circulation pump on the circulation line of heat-pump hot-water unit, heat-pump hot-water unit and heat pump cycle pump all be connected with control module and by control module control finish the heat exchanging water tank continue heat.
2. oil field shaft mouth solar energy heating according to claim 1 system, it is characterized in that: an electric heater and a heat cycles pump are installed in heat-exchanging water tank, and this electric heater and heat cycles pump all are connected with control module.
3. oil field shaft mouth solar energy heating according to claim 1 system is characterized in that: described control module comprises PLC, solar energy heating control module, heat pump heat control module and overcurrent, overload, lack detection circuit, wherein:
The solar energy heating control module is made of temperature difference control module and antifreeze control module, temperature difference control module is made of the two temperatures sensor that is installed in the solar energy collector entery and delivery port and first temperature controller, the two temperatures sensor all is connected with the input port of PLC, the delivery outlet of PLC is connected with first temperature controller, first temperature controller is connected with the solar energy circulation pump, according to the start and stop of two temperatures sensor temperature difference control solar energy circulation pump; Antifreeze control module is made of three-temperature sensor, second temp control switch, three-temperature sensor is installed on the water inlet of solar energy collector, the output of three-temperature sensor is connected with the input port of PLC, the delivery outlet of PLC is connected with second temperature controller respectively, and the output of second temperature controller is connected with the solar energy circulation pump;
The heat pump control module of heating is made of the 4th temperature pick up, the 3rd temperature controller and very first time controller, the 4th temperature pick up is installed on the delivery port of heat-exchanging water tank, its output is connected with the input port of PLC, the delivery outlet of PLC is connected with the 3rd temperature controller, the output of the 3rd temperature controller is connected with very first time controller, and the output of very first time controller is connected with heat-pump hot-water unit and heat pump cycle pump.
4. oil field shaft mouth solar energy heating according to claim 3 system, it is characterized in that: described control module also comprises the electrical heating control module, this electrical heating control module is by the 5th temperature pick up, the 6th temperature pick up, second time controller, the 3rd time controller, the 4th temperature controller, the 5th temperature controller, first electric heater, second electric heater, fluid level controller and time-delay relay constitute, the 5th temperature pick up, the 6th temperature pick up is installed in the heat-exchanging water tank, and be connected with the input port of PLC by second time controller and the 3rd time controller respectively, the delivery outlet of PLC is respectively by the 4th temperature controller and the 5th temperature controller and first electric heater that is installed in the heat-exchanging water tank, second electric heater is connected, first electric heater and second electric heater also all are connected with fluid level controller and time-delay relay, and the delivery outlet of PLC is connected with the heat cycles pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200920096888 CN201412120Y (en) | 2009-05-25 | 2009-05-25 | Solar power warming system for oil field wellhead |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200920096888 CN201412120Y (en) | 2009-05-25 | 2009-05-25 | Solar power warming system for oil field wellhead |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201412120Y true CN201412120Y (en) | 2010-02-24 |
Family
ID=41714006
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200920096888 Expired - Lifetime CN201412120Y (en) | 2009-05-25 | 2009-05-25 | Solar power warming system for oil field wellhead |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201412120Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105683679A (en) * | 2013-09-05 | 2016-06-15 | 沙特阿拉伯石油公司 | Method of using concentrated solar power (CSP) for thermal gas well deliquification |
| CN104420850B (en) * | 2013-09-11 | 2017-02-08 | 中国石油天然气股份有限公司 | Well site crude oil heating device, heating system and heating control method |
| CN116006128A (en) * | 2023-01-04 | 2023-04-25 | 河北瑞丁自动化设备有限公司 | Paraffin preventing device for well bore of oil extraction well heated by solar energy |
-
2009
- 2009-05-25 CN CN 200920096888 patent/CN201412120Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105683679A (en) * | 2013-09-05 | 2016-06-15 | 沙特阿拉伯石油公司 | Method of using concentrated solar power (CSP) for thermal gas well deliquification |
| CN105683679B (en) * | 2013-09-05 | 2018-05-18 | 沙特阿拉伯石油公司 | Hot gas well, which is carried out, using Photospot solar (CSP) goes liquefied method |
| CN104420850B (en) * | 2013-09-11 | 2017-02-08 | 中国石油天然气股份有限公司 | Well site crude oil heating device, heating system and heating control method |
| CN116006128A (en) * | 2023-01-04 | 2023-04-25 | 河北瑞丁自动化设备有限公司 | Paraffin preventing device for well bore of oil extraction well heated by solar energy |
| CN116006128B (en) * | 2023-01-04 | 2023-11-28 | 河北瑞丁自动化设备有限公司 | Paraffin preventing device for well bore of oil extraction well heated by solar energy |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201363816Y (en) | Solar energy hot water heating device | |
| CN102797661B (en) | Air compressor residual-heat utilization system and method | |
| CN201246924Y (en) | Air source heat pump and middle and high temperature water source heat pump combining heating apparatus | |
| CN103267365A (en) | Combined hot water making system | |
| CN201242315Y (en) | United heating apparatus for solar air source heat pump and middle-/high-temperature water source heat pump | |
| CN203364460U (en) | Solar water heating device assisted by air source heat pump | |
| CN205447976U (en) | Solar energy can complementary hot -water heating system with air | |
| CN201751746U (en) | Heat supply system using solar energy and wall-hung gas furnace complementary to each other | |
| CN201412120Y (en) | Solar power warming system for oil field wellhead | |
| CN201311095Y (en) | Heating system for individual well oil tanks of oil fields | |
| CN201795283U (en) | Solar high-temperature heat pump heating device for oil gathering and transportation | |
| CN203177311U (en) | Heating supply system | |
| CN205261921U (en) | Solar heat pump water -heating system | |
| CN104265386B (en) | Solar water heater TRT and using method thereof | |
| CN204240453U (en) | Heat-storage solar energy, electric energy and coal heat type heat combined heat heat source system | |
| CN203489495U (en) | Solar energy and ground source heat pump combined hot water supplying system | |
| CN214746485U (en) | Solar heat pump control system suitable for low temperature environment | |
| CN100532915C (en) | Wind, solar energy and electricity integrated heating device and heating method for crude oil gathering and transportation | |
| CN103471255B (en) | The solar water heating system of photovoltaic power supply | |
| CN203177294U (en) | Light panel solar energy and fuel gas combined type heat supply system | |
| CN201926025U (en) | Multi-energy-source complementary hot water supplying device | |
| CN102478276B (en) | Method for combining a solar water heater and energy-saving cooking range and bath water heating system based on same | |
| CN204082239U (en) | Solar water heater electricity generating device | |
| CN203687172U (en) | Solar energy hot recycle pump heat supply device | |
| CN104848319A (en) | Geothermal water heating circulation system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: TIANJIN RUNHONGDA PIPE MANUFACTURING CO., LTD. Free format text: FORMER OWNER: TIANJIN YUNKUN INDUSTRY-TRADE CO., LTD. Effective date: 20100909 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 300192 ROOM 1806, WANZHAO HUIGU BUILDING, NANKAI DISTRICT, TIANJIN CITY TO: 300270 SOUTH SIDE OF REFINERY OF PETROCHEMICAL CO.,LTD., DAGANG DISTRICT, TIANJIN CITY |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20100909 Address after: 300270 Tianjin Grand Port Petrochemical Industries Co refinery South Patentee after: Tianjin Runhong Hongda Pipe Fittings Manufacture Co., Ltd. Address before: 300192 Tianjin city Nankai District million Zhaohui Valley Building Room 1806 Patentee before: Tianjin Yunkun Industry-Trade Co., Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20100224 |
|
| CX01 | Expiry of patent term |