CN105042329B - Two-layer equation LNG pump well construction and the storage tank containing its structure - Google Patents
Two-layer equation LNG pump well construction and the storage tank containing its structure Download PDFInfo
- Publication number
- CN105042329B CN105042329B CN201510529163.3A CN201510529163A CN105042329B CN 105042329 B CN105042329 B CN 105042329B CN 201510529163 A CN201510529163 A CN 201510529163A CN 105042329 B CN105042329 B CN 105042329B
- Authority
- CN
- China
- Prior art keywords
- pump
- well
- storage tank
- lng
- interior
- 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.)
- Active
Links
Landscapes
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The invention discloses a kind of two-layer equation LNG pump well construction, belong to LNG pump well field.The LNG pump well construction of ability invention includes the interior pump sump for setting immersed pump, and the pump sump includes Nei Jing and outer well, and interlayer is formed between the Nei Jing and outer well, and the interior well forms admission chamber with the liquid feeding end of immersed pump；The interior well is provided with some pipelines for passing outer well, and the pipeline connects admission chamber, and the pipeline is provided with some stop valves, and the stop valve is located in interlayer.The present invention has simple structure, implements simple installation；Immersed pump can not only be repaired at any time, it is also possible to the valve connected between control storage tank and pump sump is repaired at any time；Significantly reduce LNG waste, to maintenance personal safety without threaten the characteristics of.
Description
Technical field
The present invention relates to a kind of pump sump structure, particularly a kind of two-layer equation LNG pump well construction.
Background technology
Large-scale LNG storage tank typically build underground in, and storage tank is higher than liquid level with the connecting portion of outside pipeline.For this storage
Tank, outwards during conveying LNG, it is necessary to use immersed pump.Immersed pump is typically mounted on the bottom of storage tank, existing for the ease of maintenance pump
It is for each pump sets a vertical tube, referred to as " pump sump " to have technology.Immersed pump is arranged on the bottom of pump sump, and storage tank passes through with pump sump
The valve of bottom one separates, referred to as " bottom valve ".The base of pump is located above bottom valve, after pump is installed on base, according to
Action of Gravity Field by pump opens valve, and pump sump is connected with LNG storage tank.If pumping is gone out into maintenance, valve just loses pump gravity
Effect, in the active force and storage tank of spring under the collective effect of static pressure, makes valve closing, serves storage tank space and pump sump
The effect of space isolation.
Although the design of prior art is convenient being repaired to immersed pump, when bottom valve failure, lift immersed pump and also cannot
Close the connection of storage tank and pump sump, it is impossible to on-call maintenance is carried out to immersed pump, if being provided only with a pump in storage tank, then just only
LNG in storage tank can be emptied, cause the waste of a large amount of LNG；Bottom valve also cannot at any time carry out maintenance replacing；In maintenance bottom valve
When, maintenance personal needs to be deep into inside pump sump, not only the inconvenient but also threat larger to the security presence of maintenance personal.
The content of the invention
Goal of the invention of the invention is：For above-mentioned problem, there is provided a kind of simple structure, implement that letter is installed
Just；Immersed pump can not only be repaired at any time, it is also possible to the valve connected between control storage tank and pump sump is carried out at any time
Maintenance；Significantly reduce LNG to waste, to maintenance personal's safety without the pump sump structure for threatening.
The technical solution adopted by the present invention is as follows：
Two-layer equation LNG pump well construction, including the interior pump sump for setting immersed pump, the pump sump include Nei Jing and outer well, described interior
Interlayer is formed between well and outer well, the interior well forms admission chamber with the liquid feeding end of immersed pump；The interior well is provided with some passing
The pipeline of outer well, the pipeline connects admission chamber, and the pipeline is provided with some stop valves, and the stop valve is located in interlayer.
As a result of said structure, the stop valve connected between control pump sump and storage tank is had been moved to outside storage tank, when need
When being repaired to immersed pump, the connection between pump sump and storage tank can be disconnected from external off stop valve, now will be latent
Liquid pump is repaired by hanging out outside well to immersed pump；Pump sump simple structure, implements easy for installation simple, with extremely strong practicality
Property and reduce operating personnel caused with the possibility of security incident.
Two-layer equation LNG pump well construction, the pump sump bottom is sealing structure, and the interior bottom is sealing structure.
As a result of said structure, it is ensured that the isolation between pump sump and storage tank, it is to avoid LNG is from storage tank to pump sump
Seepage, reduces the waste of LNG.
Two-layer equation LNG pump well construction, the stop valve includes valve body and valve element, and valve element, the valve are provided with the valve body
Core and the valve rod of valve element connection lead to pump sump top.
As a result of said structure, the bonnet and valve rod of the stop valve connected between control pump sump and storage tank are extended to
Pump sump top, stop valve can be operated from pump sump top, and when needing to repair immersed pump, maintenance personal is without under
Enter shaft bottom, the connection between pump sump and hydrops pond can be disconnected from the valve rod of peripheral operation stop valve, now hang immersed pump
Immersed pump is repaired by going out outside well, while pump sump simple structure, implements easy for installation simple, with extremely strong practicality
Property；Cut-off valve core can be changed from top when stop valve needs repairing, without going deep into inside pump sump, convenient maintenance,
Ensure that the safety of maintenance personal.
Two-layer equation LNG pump well construction, the interlayer top is sealing structure, inert gas is filled inside the interlayer or is
Vacuum.
As a result of said structure, there is inert gas stabilization to be difficult reaction, and relative molecular mass more than air
Relative molecular mass is more than the physical property of the average molecular mass of air, between the interlayer that inwall and outer wall are formed
Normal pressure inert gas is filled, gas blanket can be formed in the middle of interlayer, a small amount of LNG can not only be prevented to be leaked in air
Environment is polluted, the safety to personnel causes a hidden trouble, additionally it is possible to prevent steam in air, dust or particle etc. to cut-off
Valve is impacted, and reduces the possibility that stop valve stop valve breaks down, and reduces maintenance frequency, increased the longevity of stop valve
Life, has saved cost；Or pump sump is vacuum state, it is also possible to which realization prevents a small amount of LNG from being caused to environment in being leaked to air
Pollution, the safety to personnel causes a hidden trouble, additionally it is possible to prevent the steam in air, dust or particle etc. from causing shadow to stop valve
Ring, reduce the possibility that stop valve stop valve breaks down.
Two-layer equation LNG pump well construction, the pipeline is made of stainless steel.
As a result of said structure, the service life of pipeline is extended, also ensure that from hydrops pond and convey LNG to pump sump
Stabilization.
A kind of storage tank containing two-layer equation LNG pump well construction, including above-mentioned two-layer equation LNG pump well construction and storage tank, it is described
Pump sump is arranged at tank inside.
As a result of said structure, two-layer equation LNG pump well can be placed in tank inside, and storage tank provides cryogenic temperature to pump
Well so that LNG in pump sump will not pneumatolytic metamorphism, pump sump need not be separately provided the device for keeping constant temperature, energy saving and into
This.Two-layer equation LNG pump well construction is inserted in storage tank, also eliminate the setting of bottom valve in the prior art, it is to avoid work as bottom valve failure
When, lift the connection that immersed pump cannot also close storage tank and pump sump, it is impossible to on-call maintenance is carried out to immersed pump, a large amount of LNG are caused
Waste；It also avoid bottom valve also cannot at any time carry out maintenance replacing, only wait LNG in storage tank just to be carried out using after complete
Maintenance, and the situation appearance that a large amount of LNG are wasted is will also result in during this；Do not result in simultaneously when bottom valve is repaired, repair people
Member needs to be deep into inside pump sump, larger to the security presence of maintenance personal this problem of threat.
A kind of storage tank containing two-layer equation LNG pump well construction, the tank bottom is provided with hydrops hole, and the pump sump bottom is stretched
To hydrops hole, the pipeline passes interlayer and extends in hydrops hole.
As a result of said structure, due to gravity, LNG liquid, pump sump are in the hydrops hole of tank bottom
Stretch into and ensure that temperature remains constant in hydrops hole, fluctuating range is minimum；Pipeline is connected to hydrops hole, it is ensured that enter from storage tank
The liquid of pump sump is LNG, does not result in the BOG suctions that may be present of storage tank upper strata, while pump sump bottom is stretched into hydrops hole,
Pipe range needed for reducing connecting pipe, saves material.
In sum, by adopting the above-described technical solution, the beneficial effects of the invention are as follows：
1st, simple structure, implements simple installation, and immersed pump can not only be repaired at any time, it is also possible at any time to control
The valve connected between storage tank and pump sump is repaired.
2nd, significantly reduce the waste to LNG in maintenance process and the course of work, reduce energy loss, saved into
This.
3rd, carry out maintaining at any time to stop valve, reduce the possibility that stop valve breaks down, increase device security,
Reduce maintenance cost and frequently maintain, additionally provide the working environment of clean and safe.
Brief description of the drawings
Fig. 1 is the structural representation of two-layer equation LNG pump well construction and the storage tank containing its structure.
Marked in figure：1 is pump sump, and 11 is interior well, and 12 is outer well, and 13 is interlayer, and 2 is storage tank, and 21 cheat for hydrops, and 3 is to cut
Only valve, 4 is pipeline, and 5 is admission chamber.
Specific embodiment
Below in conjunction with the accompanying drawings, the present invention is described in detail.
In order to make the purpose , technical scheme and advantage of the present invention be clearer, it is right below in conjunction with drawings and Examples
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
Embodiment 1
As shown in figure 1, two-layer equation LNG pump well construction, including the interior pump sump 1 for setting immersed pump, pump sump 1 can be placed in storage tank 2
It is outside, it is also possible to be placed in inside storage tank 2；Pump sump 1 includes interior well 11 and outer well 12, and outer well 12 is placed in outside interior well 11, interior well 11
Interlayer 13 is formed between outer well 12, interior well 11 forms admission chamber 5 with the liquid feeding end of immersed pump；Interior well 11 is provided with outside some passing
The pipeline 4 of well 12, one end connection admission chamber 5 of pipeline 4, the other end of pipeline 4 is liquid feeding end；Pipeline 4 is provided with some cut-offs
Valve 3, the number of stop valve 3 can be 1, or 2, even more, stop valve 3 is located in interlayer 13.Work as needs
When being repaired to immersed pump, the connection between pump sump and storage tank can be disconnected from external off stop valve, now by latent liquid
Pump is repaired by hanging out outside well to immersed pump；Pump sump simple structure, implements easy for installation simple, with extremely strong practicality
And reduce the possibility that operating personnel are caused with security incident.The pump sump structure can be arranged on tank inside, it is also possible to set
Outside storage tank, same structure has widely adaptability, can according to actual needs carry out unrestricted choice.
Interior well 11 is provided with two opposite pipelines of bearing of trend 4, and a connection admission chamber 5 of pipeline 4 passes outer well 11, connects
To in storage tank, another pipeline 4 connects admission chamber 5 and passes outer well 11 in the opposite direction, is connected in storage tank, each pipeline
4 are provided with a stop valve 3, when one of stop valve breaks down, close another stop valve, you can with to going out
The stop valve of existing failure is repaired.Avoid after stop valve breaks down, it is impossible to cut off the company between pump sump and hydrops pond
It is logical to cause the situation appearance that a large amount of LNG are wasted so as to be repaired to stop valve, it has been also convenient for maintenance personal and has been tieed up
Repair, maintaining can also be at any time carried out to stop valve, reduce the possibility that stop valve breaks down；Pipeline 4 is by stainless steel
Into.
Embodiment 2
As shown in figure 1, two-layer equation LNG pump well construction, the bottom of pump sump 1 is sealing structure, and the bottom of interior well 11 is sealing structure.
Pipeline 4 can be from the side wall connection admission chamber 5 of interior well 11, it is also possible to connect admission chamber 5 from bottom, but the bottom of interior well 11 is close
Seal structure, the bottom of pump sump 1 is also sealing structure, when pump sump structure is located at tank inside, it is ensured that between pump sump and storage tank
Isolation, it is to avoid LNG to pump sump seepage, reduces the waste of LNG from storage tank；When pump sump structure is located at storage tank outside, keep away
Exempt from LNG from pump sump to External leakage, reduced the waste of LNG, also reduce the potential safety hazard that leakage is likely to result in.
Embodiment 3
As shown in figure 1, two-layer equation LNG pump well construction, stop valve 3 includes valve body and valve element, and valve element, valve element are provided with valve body
And the valve rod of valve element connection leads to the top of pump sump 1, stop valve 3 can be operated from pump sump top, when needing to immersed pump
When being repaired, maintenance personal can disconnect pump sump and hydrops pond without lower going-into-well bottom from the valve handle of peripheral operation stop valve
Between connection, immersed pump now hangs out well is outer can be repaired to immersed pump, while pump sump simple structure, implements installation
It is convenient and simple, with extremely strong practicality；Cut-off valve core can be changed from top when stop valve needs repairing, without
Go deep into inside pump sump, convenient maintenance, it is ensured that the safety of maintenance personal.
Embodiment 4
As shown in figure 1, two-layer equation LNG pump well construction, the top of interlayer 13 is sealing structure, and indifferent gas is filled inside interlayer 13
There is body, inert gas stabilization to be difficult reaction, and relative molecular mass is more than the flat of air more than the relative molecular mass of air
The physical property of equal relative molecular mass, fills normal pressure inert gas, Ke Yi between the interlayer that inwall and outer wall are formed
Gas blanket is formed in the middle of interlayer, can not only prevent a small amount of LNG from being polluted to environment in being leaked to air, to personnel's
Safety causes a hidden trouble, additionally it is possible to prevent the steam in air, dust or particle etc. from impacting stop valve, reduces stop valve and cuts
The possibility that only valve breaks down, reduces maintenance frequency, increased the life-span of stop valve, has saved cost, and inert gas can
With using nitrogen etc.；Or pump sump is vacuum state, it is also possible to which realization prevents a small amount of LNG from causing dirt to environment in being leaked to air
Dye, the safety to personnel causes a hidden trouble, additionally it is possible to prevent the steam in air, dust or particle etc. from impacting stop valve,
Reduce the possibility that stop valve stop valve breaks down；Simultaneously using conventional meanses well known by persons skilled in the art such as pearlifes
This purpose can be realized.
Embodiment 5
As shown in figure 1, a kind of storage tank containing two-layer equation LNG pump well construction, including above-mentioned two-layer equation LNG pump well construction
With storage tank 2, pump sump 1 is arranged inside storage tank 1, and storage tank 2 provides cryogenic temperature to pump sump 1 so that the LNG in pump sump 1 will not gas
Change and go bad, pump sump 1 need not be separately provided the device for keeping constant temperature, energy saving and cost.The bottom of storage tank 2 is provided with hydrops hole
21, the bottom of pump sump 1 is extended in hydrops hole 21, and pipeline 4 passes interlayer 13 and extends in hydrops hole 21, due to gravity, storage tank 2
The hydrops 21 of bottom is LNG liquid in cheating, and pump sump 1 is stretched into and ensures that temperature remains constant in hydrops hole 21, and fluctuating range is minimum；
Pipeline 4 is connected to hydrops hole 21, it is ensured that the liquid from storage tank into pump sump 1 is LNG, and not resulting in the upper strata of storage tank 2 can
The BOG suctions that can exist, while the bottom of pump sump 1 is stretched into hydrops hole, the pipe range needed for reducing connecting pipe 4 saves material.
Presently preferred embodiments of the present invention is the foregoing is only, is not intended to limit the invention, it is all in essence of the invention
Any modification, equivalent and improvement made within god and principle etc., should be included within the scope of the present invention.
Claims (7)
1. two-layer equation LNG pump well construction, it is characterised in that：Including the interior pump sump for setting immersed pump（1）, the pump sump（1）Including interior
Well（11）With outer well（12）, the interior well（11）With outer well（12）Between form interlayer（13）, the interior well（11）With immersed pump
Liquid feeding end formed admission chamber（5）；The interior well（11）It is provided with and some passes outer well（12）Pipeline（4）, the pipeline（4）Even
Tap into sap cavity（5）, the pipeline（4）It is provided with some stop valves（3）, the stop valve（3）Positioned at interlayer（13）It is interior.
2. two-layer equation LNG pump well construction as claimed in claim 1, it is characterised in that：The pump sump（1）Tied for sealing bottom
Structure, the interior well（11）Bottom is sealing structure.
3. two-layer equation LNG pump well construction as claimed in claim 1, it is characterised in that：The stop valve（3）Including valve body and valve
Core, is provided with valve element in the valve body, the valve rod that the valve element and valve element are connected leads to pump sump（1）Top.
4. two-layer equation LNG pump well construction as claimed in claim 1, it is characterised in that：The interlayer（13）Tied for sealing at top
Structure, the interlayer（13）Inside fills inert gas or is vacuum.
5. the two-layer equation LNG pump well construction as described in any one claim in claim 1-4, it is characterised in that：It is described
Pipeline（4）It is made of stainless steel.
6. a kind of storage tank containing two-layer equation LNG pump well construction, it is characterised in that：Including any one of claim 1-5
Two-layer equation LNG pump well construction and storage tank（2）, the pump sump（1）It is arranged at storage tank（2）Inside, the pipeline（4）Connection storage tank
（2）It is interior.
7. a kind of storage tank containing two-layer equation LNG pump well construction as claimed in claim 6, it is characterised in that：The storage tank（2）
Bottom is provided with hydrops hole（21）, the pump sump（1）Bottom extends hydrops hole（21）It is interior, the pipeline（4）Pass interlayer（13）Stretch
To hydrops hole（21）It is interior.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510529163.3A CN105042329B (en) | 2015-08-26 | 2015-08-26 | Two-layer equation LNG pump well construction and the storage tank containing its structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510529163.3A CN105042329B (en) | 2015-08-26 | 2015-08-26 | Two-layer equation LNG pump well construction and the storage tank containing its structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105042329A CN105042329A (en) | 2015-11-11 |
| CN105042329B true CN105042329B (en) | 2017-06-30 |
Family
ID=54449125
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510529163.3A Active CN105042329B (en) | 2015-08-26 | 2015-08-26 | Two-layer equation LNG pump well construction and the storage tank containing its structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105042329B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107289318A (en) * | 2016-04-05 | 2017-10-24 | 张家港中集圣达因低温装备有限公司 | Cryogenic tank |
| CN107477360B (en) * | 2017-09-30 | 2023-05-16 | 成都华气厚普机电设备股份有限公司 | LNG storage tank with stop valve pump well |
| CN107489881B (en) * | 2017-09-30 | 2023-07-07 | 厚普清洁能源(集团)股份有限公司 | Take tank bottom valve pump well and take LNG storage tank of tank bottom valve pump well |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56120896A (en) * | 1980-02-25 | 1981-09-22 | Kawasaki Heavy Ind Ltd | Pump barrel support device for double shell low temperature tank |
| CN202483903U (en) * | 2012-02-28 | 2012-10-10 | 浙江机电职业技术学院 | Liquefied natural gas (LNG) immersed pump |
| CN202629586U (en) * | 2012-03-30 | 2012-12-26 | 查特深冷工程系统(常州)有限公司 | Box type gas filling device for liquefied natural gas |
| CN203718368U (en) * | 2014-02-19 | 2014-07-16 | 中船圣汇装备有限公司 | Low-temperature storage tank and vacuum immersed pump system |
| CN203743819U (en) * | 2014-01-13 | 2014-07-30 | 查特深冷工程系统(常州)有限公司 | Underground storage tank for LNG (Liquefied Natural Gas) filling station |
| CN104235594A (en) * | 2013-06-13 | 2014-12-24 | 张家港中集圣达因低温装备有限公司 | Horizontal double-layer buried storage tank |
| CN204879435U (en) * | 2015-08-26 | 2015-12-16 | 成都华气厚普机电设备股份有限公司 | Two -layer equation LNG pump well structure and contain storage tank of its structure |
-
2015
- 2015-08-26 CN CN201510529163.3A patent/CN105042329B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56120896A (en) * | 1980-02-25 | 1981-09-22 | Kawasaki Heavy Ind Ltd | Pump barrel support device for double shell low temperature tank |
| CN202483903U (en) * | 2012-02-28 | 2012-10-10 | 浙江机电职业技术学院 | Liquefied natural gas (LNG) immersed pump |
| CN202629586U (en) * | 2012-03-30 | 2012-12-26 | 查特深冷工程系统(常州)有限公司 | Box type gas filling device for liquefied natural gas |
| CN104235594A (en) * | 2013-06-13 | 2014-12-24 | 张家港中集圣达因低温装备有限公司 | Horizontal double-layer buried storage tank |
| CN203743819U (en) * | 2014-01-13 | 2014-07-30 | 查特深冷工程系统(常州)有限公司 | Underground storage tank for LNG (Liquefied Natural Gas) filling station |
| CN203718368U (en) * | 2014-02-19 | 2014-07-16 | 中船圣汇装备有限公司 | Low-temperature storage tank and vacuum immersed pump system |
| CN204879435U (en) * | 2015-08-26 | 2015-12-16 | 成都华气厚普机电设备股份有限公司 | Two -layer equation LNG pump well structure and contain storage tank of its structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105042329A (en) | 2015-11-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105042329B (en) | Two-layer equation LNG pump well construction and the storage tank containing its structure | |
| CN105042328B (en) | Built-in without bottom valve LNG pump well construction | |
| CN204879435U (en) | Two -layer equation LNG pump well structure and contain storage tank of its structure | |
| CN211285832U (en) | Fire-fighting water storage tank | |
| CN105156742B (en) | A kind of air bleeding valve | |
| CN202132560U (en) | Tiny drag slow shut check valve | |
| CN106764005A (en) | For the multifunctional composite high speed exhaust intake valve of tilted tube | |
| CN206958305U (en) | A kind of high temperature regulation ball valve | |
| CN201561269U (en) | Gas leakage prevention and drainage double protector | |
| CN213656030U (en) | Self-operated fluid resistor | |
| CN106195414B (en) | A kind of composite exhaust valve with buffer unit | |
| CN104180029A (en) | Screwing opening type check valve capable of balancing pressure automatically | |
| CN204879436U (en) | Built -in no bottom valve LNG pump well structure | |
| CN212156005U (en) | Automatic water-feeding ball float valve for scissor water tank | |
| CN203009855U (en) | Internal-pressure self-sealing type valve cover stop valve | |
| CN208153808U (en) | A kind of exhaust valve with flow-guiding type filter device | |
| CN208024943U (en) | The sealing system to be leaked outside using high pressure liquid barrier cutting-off valve | |
| CN201582451U (en) | Vacuum one-way gas valve | |
| CN205155567U (en) | Steel bottle valve plugging device | |
| CN206785787U (en) | A kind of hydraulic system depassing unit | |
| CN205824438U (en) | Lock tube device and pressure vessel detecting system | |
| CN206159618U (en) | Combined type exhaust valve with buffer | |
| CN201144827Y (en) | Vertical type non-sealed self-suction oil pump | |
| CN209179978U (en) | A kind of compressor drive shaft seal isolation structure | |
| AU2018101369A4 (en) | Vent valve, vent vale insert and method of operation of a vent valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 610041 No.3, floor 11, building 6, no.599, shijicheng South Road, Chengdu high tech Zone, China (Sichuan) pilot Free Trade Zone, Chengdu City, Sichuan Province Patentee after: Houpu clean energy Co.,Ltd. Address before: 610041 D, Tianfu Software Park, 216 century South Road, Chengdu hi tech Zone, Sichuan, China Patentee before: CHENGDU HUAQI HOUPU HOLDING Co.,Ltd. |
|
| CP03 | Change of name, title or address | ||
| CP01 | Change in the name or title of a patent holder |
Address after: No.3, 11th floor, building 6, no.599, shijicheng South Road, Chengdu hi tech Zone, China (Sichuan) pilot Free Trade Zone, Chengdu, Sichuan 610041 Patentee after: Houpu clean energy (Group) Co.,Ltd. Address before: No.3, 11th floor, building 6, no.599, shijicheng South Road, Chengdu hi tech Zone, China (Sichuan) pilot Free Trade Zone, Chengdu, Sichuan 610041 Patentee before: Houpu clean energy Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder |