CN106628704B - Petroleum tank fixes hydraulic jet mixer - Google Patents

Petroleum tank fixes hydraulic jet mixer Download PDF

Info

Publication number
CN106628704B
CN106628704B CN201710086929.4A CN201710086929A CN106628704B CN 106628704 B CN106628704 B CN 106628704B CN 201710086929 A CN201710086929 A CN 201710086929A CN 106628704 B CN106628704 B CN 106628704B
Authority
CN
China
Prior art keywords
nozzle
tank
petroleum tank
header
petroleum
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
Application number
CN201710086929.4A
Other languages
Chinese (zh)
Other versions
CN106628704A (en
Inventor
李德权
范勇
李胜利
吴建平
邰宝杰
唐颖浩
周立娇
周长才
徐战强
李瑶坤
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Design Branch Of China Petroleum Pipeline Engineering Corp
China National Petroleum Corp
China Petroleum Pipeline Engineering Corp
Original Assignee
China National Petroleum Corp
China Petroleum Pipeline Engineering Corp
China Petroleum Pipeline Engineering Corp Design Branch
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by China National Petroleum Corp, China Petroleum Pipeline Engineering Corp, China Petroleum Pipeline Engineering Corp Design Branch filed Critical China National Petroleum Corp
Priority to CN201710086929.4A priority Critical patent/CN106628704B/en
Publication of CN106628704A publication Critical patent/CN106628704A/en
Application granted granted Critical
Publication of CN106628704B publication Critical patent/CN106628704B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D90/00Component parts, details or accessories for large containers
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01FMIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/20Jet mixers, i.e. mixers using high-speed fluid streams
    • B01F25/28Jet mixers, i.e. mixers using high-speed fluid streams characterised by the specific design of the jet injector
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01FMIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/50Circulation mixers, e.g. wherein at least part of the mixture is discharged from and reintroduced into a receptacle
    • B01F25/53Circulation mixers, e.g. wherein at least part of the mixture is discharged from and reintroduced into a receptacle in which the mixture is discharged from and reintroduced into a receptacle through a recirculation tube, into which an additional component is introduced

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)

Abstract

The present invention relates to a kind of fixed hydraulic jet mixers of petroleum tank.Include: header, connects tank skin interface through entrance straight tube, the tank skin interface connects the oil circulating pump through connecting pipeline;Several nozzles are symmetrical arranged two-by-two and are distributed in petroleum tank on the circumference of different-diameter, several described nozzles pass sequentially through nozzle bend pipe and nozzle branch pipe is connected to the header centered on petroleum tank central axis and header intersection point.Fixed hydraulic jet mixer structure of the present invention is simple, and manufacturing cost is low, non-maintaining without dynamic component in tank, and axle envelope oil leakage phenomenon is not present, and there is no stirring dead angles, and nozzle velocity is lower, influences on oil tank generation impact smaller.

Description

Petroleum tank fixes hydraulic jet mixer
Technical field
The present invention relates to a kind of fixed hydraulic jet mixers of petroleum tank.
Background technique
Petrochemical enterprise is because the crude oil place of production of storage is different, and type is different, and ingredient is also different.Crude oil enter storage tank and After surge tank, easy condensate matter therein is deposited in tank bottom and forms sediment, if sediment deposition will will cause crude oil loss, storage The problems such as tank dischargeable capacity reduction.With increasing for deposit, to certain time, it is necessary to storage tank is cleaned, and A large amount of deposit will also result in the problems such as difficult, the increase oil loss of Tank Repair cleaning.Therefore it needs to carry out in tank The stirring of crude oil makes homogeneous media in tank, prevents the accumulation of deposit.
At present there is the major defect of petroleum tank and surge tank stirring facility in petrochemical enterprise: oil leak, power easily occurs There are security risks for cable, and there are stirring dead angle, separate unit oil tank generally requires more blenders of configuration, easily to remaining equipment in tank It impacting, structure is complex, and equipment acquisition cost is big, there are dynamic equipment, the problems such as jet intensity needed is higher.
Summary of the invention
It is of the invention for the disadvantage for overcoming existing crude oil jar agitator axle envelope oil leak easily occur and need jet intensity high It is designed to provide a kind of fixed hydraulic jet mixer, structure is simple, and it is at low cost, axle envelope oil leakage phenomenon is not present, and when original When oil tank is larger, multiple nozzles can be equipped on the circumference of different-diameter in tank, the jet velocity needed is lower.
The purpose of the present invention is what is be achieved through the following technical solutions:
A kind of fixed hydraulic jet mixer of petroleum tank, the fixed hydraulic jet mixer are horizontally mounted by stirrer stand In the bottom of the petroleum tank, and the fixed hydraulic jet mixer connects the external recycle oil of petroleum tank by connecting pipeline Pump, the fixed hydraulic jet mixer include:
Header successively connects tank skin interface with buffer compensation elbow through entrance straight tube, and the tank skin interface is through connecting tube Line connects the oil circulating pump;
Several nozzles are symmetrical arranged two-by-two centered on petroleum tank central axis and header intersection point and are distributed in crude oil In tank on the circumference of different-diameter, several described nozzles pass sequentially through nozzle bend pipe and nozzle branch pipe is connected to the remittance Pipe.
Further, the diameter of the petroleum tank is 48m, volume 20000m3, the fixed hydraulic jet mixer installation At the petroleum tank tank bottom 1m;
Or the diameter of the petroleum tank is 91m, volume 60000m3, the fixed hydraulic jet mixer is mounted on distance At the petroleum tank tank bottom 1.2m.
Further, buffer compensation elbow, entrance straight tube, header, nozzle bend pipe and nozzle branch pipe are each attached to blender On bracket.
Further, when the petroleum tank diameter is 48m, the number of the nozzle is 6, and 6 nozzles point It is not arranged on the circumference that petroleum tank interior diameter is 11m, 24m and 32m;
When the petroleum tank diameter is 91m, the number of the nozzle is 8, and 8 nozzles are arranged in original Oil tank interior diameter is on the circumference of 20m, 36m, 54m and 72m.
Further, several nozzle branch pipes connected corresponding to several described nozzles are connected directly to header, and Several described nozzle branch pipes are also symmetrical arranged centered on petroleum tank central axis and header intersection point two-by-two.
Further,
When the petroleum tank diameter is 48m, nozzle bend pipe B's that the nozzle on the inside of petroleum tank on two circumference is connected Bending angle is 60 °, and the bending angle for the nozzle bend pipe A that the nozzle on petroleum tank outermost circumference is connected is 90 °;
When the petroleum tank diameter is 91m, nozzle bend pipe B's that the nozzle on petroleum tank most inner side circumference is connected is curved Bent angle is 60 °, and the bending angle for the nozzle bend pipe A that the nozzle on the outside of petroleum tank on three circumference is connected is 90 °.
Further, the radius of curvature of the nozzle bend pipe is 5D, and wherein D is the caliber of nozzle bend pipe.
Further, the caliber of the header is greater than the caliber of entrance straight tube or nozzle branch pipe.
The invention has the benefit that
Fixed hydraulic jet mixer of the present invention is made of the pipe fitting and nozzle of different tube diameters, length and specification, peace On oil tank bottom plate, by the oil circulating pump of outside setting as driving source, crude oil is converged after oil circulating pump is pressurized by centre It after pipe, each nozzle branch pipe, is sprayed by the multiple nozzles being distributed on different-diameter circumference, drives crude oil in tank that convection current occurs.
Fixed hydraulic jet mixer structure of the present invention is simple, and manufacturing cost is low, non-maintaining without dynamic component in tank, no There are axle envelope oil leakage phenomenons, and there is no stirring dead angles, and nozzle velocity is lower, and it is smaller to generate impact influence to oil tank.
Detailed description of the invention
Fig. 1 is the fixed hydraulic jet mixer process flow chart of petroleum tank of the present invention;
Fig. 2 is the planar configuration figure of the fixed hydraulic jet mixer of 1 Central Plains oil tank of the embodiment of the present invention;
Fig. 3 is the planar configuration figure of the fixed hydraulic jet mixer of 2 Central Plains oil tank of the embodiment of the present invention;
Fig. 4 is the sectional view of the fixed hydraulic jet mixer of 1 Central Plains oil tank of the embodiment of the present invention;
Fig. 5 is the header of the fixed hydraulic jet mixer of 1 Central Plains oil tank of the embodiment of the present invention and the structural map of nozzle branch pipe;
Fig. 6 is the header of the fixed hydraulic jet mixer of 2 Central Plains oil tank of the embodiment of the present invention and the structural map of nozzle branch pipe;
Fig. 7 and Fig. 8 is respectively the structural map of the fixed hydraulic jet mixer nozzle bend pipe of petroleum tank of the present invention;
Fig. 9 is the dimensional sketch of 1 Central Plains oil tank of the embodiment of the present invention;
Wherein, 1- petroleum tank, 2- tank skin interface, 3- buffer compensation elbow, 4- entrance straight tube, 5- header, 6- Φ 11m nozzle Branch pipe A, 7- Φ 11m nozzle branch pipe B, 8- Φ 32m nozzle branch pipe A, 9- Φ 32m nozzle branch pipe B, 10- Φ 24m nozzle branch pipe A, 11- Φ 24m nozzle branch pipe B, 12- nozzle bend pipe A, 13- nozzle bend pipe B, 14- nozzle, the fixed hydraulic jet mixer of 15-, 16- are followed Ring oil pump, 17- connecting pipeline, 18- stirrer stand.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right The present invention is further elaborated.It should be appreciated that described herein, specific examples are only used to explain the present invention, not For limiting the present invention.
Embodiment 1
As shown in figure 9, the diameter of petroleum tank is 48m, volume 20000m3, as shown in figure 4, fixed hydraulic jet mixer It is horizontally arranged at the petroleum tank tank bottom 1m by stirrer stand 18.As shown in Figure 1, the fixed injecting type stirring Device 15 connects the external oil circulating pump 16 of petroleum tank by connecting pipeline 17, and water is completed in tank by the driving of external circulating pump Power circulation, driving oil product flow in tank.As shown in Fig. 2, the fixed hydraulic jet mixer includes: header 5, successively through entering Mouth straight tube 4, buffer compensation elbow 3 connect tank skin interface 2.The tank skin interface 2 connects the oil circulating pump through connecting pipeline 17 16.In conjunction with shown in Fig. 2 and Fig. 5,6 nozzle branch pipes are connected on the header 5,6 nozzle branch pipes successively connect nozzle respectively Bend pipe and nozzle, 6 nozzles are symmetrical arranged two-by-two centered on petroleum tank central axis and 5 intersection point of header and are distributed in petroleum tank Interior diameter is on the circumference of 11m, 24m and 32m.Correspondingly, the 6 nozzle branch pipes connect on header 5 distinguish 3 groups, it is respectively as follows: Φ 11m nozzle branch pipe A6, Φ 11m nozzle branch pipe B7;Φ 32m nozzle branch pipe A8, Φ 32m nozzle branch pipe B9;Φ 24m nozzle branch pipe A10 and Φ 24m nozzle branch pipe B11, wherein every group of nozzle branch pipe respectively along petroleum tank central axis with it is right centered on 5 intersection point of header Claim arrangement, and Φ 32m nozzle branch pipe A8 and Φ 32m nozzle branch pipe B9 is arranged along petroleum tank central axis.Circle where header 5, nozzle The diameter in week and the patterns affect of nozzle bend pipe stirring result.
The buffer compensation elbow 3, entrance straight tube 4, header 5, nozzle bend pipe and nozzle branch pipe are each attached to blender branch On frame 18.
Referring to figs. 7 and 8, two circumference, that is, diameters are connected by the nozzle 14 on 11m, 24m circumference on the inside of petroleum tank The bending angle of the nozzle bend pipe B13 connect is 60 °, the nozzle bend pipe A12 that the nozzle 14 on petroleum tank outermost circumference is connected Bending angle be 90 °.
The radius of curvature of the nozzle bend pipe is 5D, and wherein D is the caliber of nozzle bend pipe.
The caliber of the header 5 is greater than the caliber of entrance straight tube 4 or nozzle branch pipe.
The present invention can be with the position of based on crude tank tank diameter and internal structure adjustment nozzle, in conjunction with full-scale numerical simulation skill Art designs the fixed hydraulic jet mixer of 20,000 side's petroleum tanks of suitable 48m diameter.Its spray by 6 nozzles, 6 root long degree not etc. Mouth branch pipe, 6 nozzle bend pipes, 1 header, 1 entrance straight tube and corresponding stirrer stand are mounted on petroleum tank bottom composition. It is using the oil circulating pump of outside setting as driving source, and crude oil is after oil circulating pump is pressurized, not by intermediate header, each length Deng nozzle branch pipe after, by be distributed in different radial positions 6 nozzles spray, drive tank in oil product formed rotary motion.
Embodiment 2
In the present embodiment, the diameter of the petroleum tank is 91m, volume 60000m3, fixed hydraulic jet mixer is by stirring Device support level is mixed to be mounted at the petroleum tank tank bottom 1.2m.As shown in Figure 1, and the fixed hydraulic jet mixer it is logical The external oil circulating pump of connecting pipeline connection petroleum tank is crossed, as shown in figure 3, the fixed hydraulic jet mixer includes: header, Tank skin interface successively is connected through entrance straight tube, buffer compensation elbow, the tank skin interface connects the recycle oil through connecting pipeline Pump.As shown in connection with fig. 6,8 nozzle branch pipes are connected on the header, the nozzle branch pipe successively connects nozzle bend pipe and spray respectively Mouth, 8 nozzles are symmetrical arranged two-by-two centered on petroleum tank central axis and header intersection point and are distributed in petroleum tank interior diameter difference For on the circumference of 20m, 36m, 54m and 72m.Correspondingly, the 8 nozzle branch pipes connect on header are divided into 4 groups, it is respectively as follows: Φ 54m spray Mouth branch pipe A, Φ 54m nozzle branch pipe B;Φ 20m nozzle branch pipe A, Φ 20m nozzle branch pipe B;Φ 72m nozzle branch pipe A, Φ 72m nozzle Branch pipe B;Φ 36m nozzle branch pipe A, Φ 36m nozzle branch pipe B.Wherein, every group of nozzle branch pipe respectively along Crude Oil Buffer Tank's central axis with It is arranged symmetrically centered on header intersection point.The diameter of circumference where header, nozzle and the patterns affect of nozzle bend pipe stirring result.
The buffer compensation elbow, entrance straight tube, header, nozzle bend pipe and nozzle branch pipe are each attached to stirrer stand On.
Petroleum tank most inner side circumference, that is, diameter is by the bending angle for the nozzle bend pipe B that the nozzle on 20m circumference connects 60 °, the bending angle for the nozzle bend pipe A that the three circumference, that is, diameters in petroleum tank outside are connected by the nozzle 16 on 36m, 54m, 72m Degree is 90 °.
The radius of curvature of the nozzle bend pipe is 5D, and wherein D is the caliber of nozzle bend pipe.
The caliber of the header is greater than the caliber of entrance straight tube or nozzle branch pipe.
The present invention can be with the position of based on crude tank tank diameter and internal structure adjustment nozzle, in conjunction with full-scale numerical simulation skill Art designs the fixed hydraulic jet mixer of 60,000 side's petroleum tanks of suitable 91m diameter.Its spray by 8 nozzles, 8 root long degree not etc. Mouth branch pipe, 8 nozzle bend pipes, 1 header, 1 entrance straight tube and corresponding stirrer stand are mounted on petroleum tank bottom composition. It is using the oil circulating pump of outside setting as driving source, and crude oil is after oil circulating pump is pressurized, not by intermediate header, each length Deng nozzle branch pipe after, by be distributed in different radial positions 8 nozzles spray, drive tank in oil product formed rotary motion.
This fixation hydraulic jet mixer can adjust each components such as nozzle, branch pipe according to the difference of tank diameter and volume Size, quantity, the design of position and angle.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.

Claims (3)

1. a kind of fixed hydraulic jet mixer of petroleum tank, which is characterized in that the fixed hydraulic jet mixer (15) passes through stirring Device bracket (18) is horizontally arranged at the bottom of the petroleum tank (1), and the fixed hydraulic jet mixer (15) passes through connecting tube Line (17) connects the external oil circulating pump (16) of petroleum tank, and the fixed hydraulic jet mixer includes:
Header (5), successively through entrance straight tube (4) and buffer compensation elbow (3) connection tank skin interface (2), the tank skin interface (2) oil circulating pump (16) is connected through connecting pipeline (17);
Several nozzles (14) are symmetrical arranged two-by-two centered on petroleum tank central axis and header (5) intersection point and are distributed in original In oil tank on the circumference of different-diameter, several described nozzles (14) pass sequentially through nozzle bend pipe and nozzle branch pipe is connected to institute State header (5);
Buffer compensation elbow (3), entrance straight tube (4), header (5), nozzle bend pipe and nozzle branch pipe are each attached to stirrer stand (18) on;
The diameter of the petroleum tank (1) is 48m, volume 20000m3, the fixed hydraulic jet mixer be mounted on distance described in At petroleum tank tank bottom 1m;The number of the nozzle (14) is 6, and 6 nozzles (14) are arranged in petroleum tank directly Diameter is on the circumference of 11m, 24m and 32m;The nozzle bend pipe B (13) that nozzle (14) on the inside of petroleum tank on two circumference is connected Bending angle be 60 °, the bending angle for the nozzle bend pipe A (12) that the nozzle (14) on petroleum tank outermost circumference is connected is 90°;
Or the diameter of the petroleum tank (1) is 91m, volume 60000m3, the fixed hydraulic jet mixer is mounted on apart from institute It states at petroleum tank tank bottom 1.2m;The number of the nozzle (14) is 8, and 8 nozzles (14) are arranged in petroleum tank Interior diameter is on the circumference of 20m, 36m, 54m and 72m;The nozzle bend pipe B's that nozzle on petroleum tank most inner side circumference is connected Bending angle is 60 °, and the bending angle for the nozzle bend pipe A that the nozzle on the outside of petroleum tank on three circumference is connected is 90 °;
The radius of curvature of the nozzle bend pipe is 5D, and wherein D is the caliber of nozzle bend pipe.
2. the fixed hydraulic jet mixer of petroleum tank according to claim 1, which is characterized in that with several described nozzles (14) several nozzle branch pipes accordingly connected are connected directly to header (5), and several described nozzle branch pipes are also with crude oil It is symmetrical arranged two-by-two centered on tank central axis and header (5) intersection point.
3. the fixed hydraulic jet mixer of petroleum tank according to claim 1, which is characterized in that the caliber of the header (5) Greater than entrance straight tube (4) or the caliber of nozzle branch pipe.
CN201710086929.4A 2017-02-17 2017-02-17 Petroleum tank fixes hydraulic jet mixer Active CN106628704B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710086929.4A CN106628704B (en) 2017-02-17 2017-02-17 Petroleum tank fixes hydraulic jet mixer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710086929.4A CN106628704B (en) 2017-02-17 2017-02-17 Petroleum tank fixes hydraulic jet mixer

Publications (2)

Publication Number Publication Date
CN106628704A CN106628704A (en) 2017-05-10
CN106628704B true CN106628704B (en) 2019-02-22

Family

ID=58845571

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201710086929.4A Active CN106628704B (en) 2017-02-17 2017-02-17 Petroleum tank fixes hydraulic jet mixer

Country Status (1)

Country Link
CN (1) CN106628704B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107096410A (en) * 2017-05-28 2017-08-29 南京科技职业学院 A kind of fuel gas and oxygen mixer

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100569397C (en) * 2007-04-18 2009-12-16 清华大学 A kind of mobile distributing injection device that mixes of fluid that is used for
US8931948B2 (en) * 2008-10-01 2015-01-13 Bp Corporation North America Inc. Process and apparatus for mixing a fluid within a vessel
CN203342664U (en) * 2013-06-24 2013-12-18 浙江省天正设计工程有限公司 Multipoint jet mixing device
CN103418298B (en) * 2013-07-25 2015-12-23 合肥通用机械研究院 A kind of jet injection drive type blade stirrer
CN204724041U (en) * 2015-06-30 2015-10-28 甘肃酒钢集团宏兴钢铁股份有限公司 A kind of device preventing the sedimentation of circulating slot bottoms material, accumulation
CN105752530A (en) * 2016-04-07 2016-07-13 钦州学院 Upper suction and lower spraying type oil mixing device

Also Published As

Publication number Publication date
CN106628704A (en) 2017-05-10

Similar Documents

Publication Publication Date Title
CN106628704B (en) Petroleum tank fixes hydraulic jet mixer
CN103187111B (en) A kind of nuclear plant pressure vessels peace note pipe welding line ultrasonic checking tool
CN205551015U (en) Bottle inner wall wash rack
CN204735478U (en) A rotatory efflux formula etting cleaning machine for deep water box with a net
CN103883591B (en) A kind of rectifier of eliminating propellant flow dynamical distortion in engine test
CN206483349U (en) Crude Oil Buffer Tank's fix hydraulic jet mixer
CN105754116B (en) A kind of detachable gum-free milk particle generator
CN206485819U (en) Crude oil storage tank fixes hydraulic jet mixer
CN108723024A (en) A kind of power pipe inner surface washer
CN109357551B (en) Heat exchange structure for optimizing heat transfer efficiency and measurement and control method
CN204732176U (en) A kind of nuclear reactor pressure container water inlet adapter filleted corner ultrasonic inspection apparatus
CN102735093A (en) Shell-and-tube heat exchanger
CN109046181B (en) Combined fluid distributor
CN204628913U (en) A kind of unhurried current bend muffler pipe fitting
CN207741836U (en) A kind of liquid flow standard device
CN112007905A (en) Non-uniform distribution type ultrasonic cleaning device
CN208221438U (en) A kind of electronic automobile-used antirust damping spring
CN204646562U (en) The anti-swinging rack of wind-power tower cable
CN207760952U (en) A kind of construction drainage plastic standing tube with spiral single blade
CN218834145U (en) Pipeline mixer for nuclear reactor thermal hydraulic test
CN207342291U (en) A kind of preposition sewage processing filtering device adapter frame
CN205331627U (en) Double -wall corrugated pipe
CN217005944U (en) Cleaning tool for straight pipe section of ultrasonic flowmeter
CN209638548U (en) A kind of tank body insertion tube obturator
CN210600576U (en) Connecting flange for petrochemical pressure vessel connecting pipeline

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
GR01 Patent grant
GR01 Patent grant
CP03 Change of name, title or address
CP03 Change of name, title or address

Address after: 100007 Dongzhimen North Street, Dongcheng District, Dongcheng District, Beijing

Co-patentee after: China Petroleum Pipeline Engineering Co.,Ltd.

Patentee after: CHINA NATIONAL PETROLEUM Corp.

Co-patentee after: DESIGN BRANCH OF CHINA PETROLEUM PIPELINE ENGINEERING Corp.

Address before: 100120 Xicheng District six paw Kang in Beijing City

Co-patentee before: China Petroleum Pipeline Engineering Co.,Ltd.

Patentee before: China National Petroleum Corp.

Co-patentee before: DESIGN BRANCH OF CHINA PETROLEUM PIPELINE ENGINEERING Corp.

TR01 Transfer of patent right
TR01 Transfer of patent right

Effective date of registration: 20190704

Address after: 100007 Dongzhimen North Street, Dongcheng District, Dongcheng District, Beijing

Co-patentee after: China Petroleum Pipeline Engineering Co.,Ltd.

Patentee after: CHINA NATIONAL PETROLEUM Corp.

Co-patentee after: CHINA PETROLEUM PIPELINE ENGINEERING Corp.

Address before: 100007 Dongzhimen North Street, Dongcheng District, Dongcheng District, Beijing

Co-patentee before: China Petroleum Pipeline Engineering Co.,Ltd.

Patentee before: CHINA NATIONAL PETROLEUM Corp.

Co-patentee before: DESIGN BRANCH OF CHINA PETROLEUM PIPELINE ENGINEERING Corp.