CN106768065A - A kind of groundwater supply pipeline with detection function - Google Patents
A kind of groundwater supply pipeline with detection function Download PDFInfo
- Publication number
- CN106768065A CN106768065A CN201710017648.3A CN201710017648A CN106768065A CN 106768065 A CN106768065 A CN 106768065A CN 201710017648 A CN201710017648 A CN 201710017648A CN 106768065 A CN106768065 A CN 106768065A
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- Prior art keywords
- layer
- steel pipe
- supply pipeline
- groundwater supply
- testing agency
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- 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.)
- Pending
Links
- 239000003673 groundwater Substances 0.000 title claims abstract description 26
- 238000001514 detection method Methods 0.000 title abstract description 14
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 47
- 239000010959 steel Substances 0.000 claims abstract description 47
- 238000012360 testing method Methods 0.000 claims abstract description 16
- 238000007789 sealing Methods 0.000 claims abstract description 13
- 239000010410 layer Substances 0.000 claims description 52
- 238000009413 insulation Methods 0.000 claims description 15
- 238000010438 heat treatment Methods 0.000 claims description 12
- 239000011241 protective layer Substances 0.000 claims description 10
- 239000004593 Epoxy Substances 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 5
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical group [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 claims description 4
- 229920000742 Cotton Polymers 0.000 claims description 4
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical group [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 claims description 4
- 229910052796 boron Inorganic materials 0.000 claims description 4
- 239000003822 epoxy resin Substances 0.000 claims description 4
- 229920000647 polyepoxide Polymers 0.000 claims description 4
- 239000004814 polyurethane Substances 0.000 claims description 4
- 229920002635 polyurethane Polymers 0.000 claims description 4
- 229910052700 potassium Inorganic materials 0.000 claims description 4
- 239000011591 potassium Substances 0.000 claims description 4
- 239000007788 liquid Substances 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 32
- 230000000694 effects Effects 0.000 description 6
- 239000012535 impurity Substances 0.000 description 4
- 230000003139 buffering effect Effects 0.000 description 2
- 238000013016 damping Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000003628 erosive effect Effects 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 238000011897 real-time detection Methods 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000001351 cycling effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000002349 well water Substances 0.000 description 1
- 235000020681 well water Nutrition 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D1/00—Pipe-line systems
- F17D1/08—Pipe-line systems for liquids or viscous products
- F17D1/084—Pipe-line systems for liquids or viscous products for hot fluids
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D3/00—Arrangements for supervising or controlling working operations
- F17D3/01—Arrangements for supervising or controlling working operations for controlling, signalling, or supervising the conveyance of a product
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D5/00—Protection or supervision of installations
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Water Supply & Treatment (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Pipeline Systems (AREA)
Abstract
The invention discloses a kind of groundwater supply pipeline with detection function, the technical field of pipe-line equipment is related generally to, include steel pipe, testing agency and calculator；Valve and testing agency are sequentially provided with the steel pipe, the testing agency includes temperature sensor, flow sensor and pressure sensor；The testing agency is connected by calculator with the controller of outside, and the controller carries display screen and autoalarm；Balanced valve is provided between the flow sensor and pressure sensor, the steel tube surface is provided with multistage waterproof sealing sleeve pipe；The water-proof CCD camera being connected with display screen is provided with inside the flow sensor；Groundwater supply pipe safety of the present invention and good airproof performance, staff can well ensure that circulation hot-water system runs with security and stability for a long time with the relevant parameter in monitor in real time water supply line.
Description
Technical field
The present invention relates to the technical field of pipe-line equipment, specifically a kind of groundwater supply pipeline with detection function.
Background technology
Circulation hot-water system can coordinate various water heaters such as gas heater, positive displacement, Instant heating type, solar energy, air energy
Use, have return pipe and can be installed without return pipe.As some home-use hot water pipelines are more long（Water heater is apart from hot water tap
It is more long）, every time using hot water when need to wait good long a period of time, or the unified high-grade hotel supplied water and seek for 24 hours
Industry place, in order to allow customer at any time with hot water, can set circulation hot-water system, and it applies also for some demand temperature in addition
Constant water or circulation heating place, such as medicinal material are planted, and treasure the cultivation place of animal.
In recent years, continuing to develop with science and technology, relevant industries are more next to the technical requirements of circulation hot-water system
It is higher, but also there is following defect in the groundwater supply pipeline for being currently used for circulation hot-water system：
1st, sealing is poor, by long-time using easily there is seepage, while service life is short；
2nd, staff cannot carry out real-time monitoring to parameters such as the temperature in water supply line, pressure, flows, and security is poor, because
This cannot ensure that circulation hot-water system runs with security and stability for a long time.
The content of the invention
Goal of the invention：For the problem and shortage that above-mentioned prior art is present, carried it is an object of the invention to provide one kind
The groundwater supply pipeline of function, the groundwater supply pipe safety and good airproof performance are detected, staff can be supplied with monitor in real time
Relevant parameter in waterpipe, ensure that circulation hot-water system runs with security and stability for a long time well.
Technical scheme：In order to realize the above object a kind of groundwater supply pipeline with detection function of the present invention,
Include steel pipe, testing agency and calculator；Valve and testing agency are sequentially provided with the steel pipe, the testing agency includes
Temperature sensor, flow sensor and pressure sensor；The testing agency is by calculator and outside controller phase
Even, the controller carries display screen and autoalarm；Balance is provided between the flow sensor and pressure sensor
Valve, the steel tube surface is provided with multistage waterproof sealing sleeve pipe；The waterproof being connected with display screen is provided with inside the flow sensor
Camera.The present invention is joined by the related work inside temperature and relative humidity and pressure sensor real-time detection water supply line
Number, while will detect that the data for obtaining are sent to display screen, and its water-proof CCD camera can in real time by the specific feelings in pipeline
Condition is sent on display screen, therefore staff can easily monitor the real work situation inside water supply line, add
It passes through balanced valve and reduces pressure differential and difference in flow inside pipeline, in addition when deviation or failure occurs in operation, outside it
The autoalarm that portion's controller is carried makes an immediate response and sends alarm such that it is able to remind staff to note in time, because
This security is significantly improved, and ensure that circulation hot-water system runs with security and stability for a long time well；On the other hand, its
The sealing of pipeline is greatly improved by waterproof sealing sleeve pipe, it is to avoid the erosion of the seepage and impurity of water, while also rising
To protective effect well, it is therefore prevented that pipeline is damaged by load, and service life is greatly improved.
Heretofore described steel duct is provided with the heating arrangements being connected with controller.It passes through heating arrangements is carried out to water
Auxiliary heating, such that it is able to be rapidly achieved the water temperature needed for user, efficiency is very high.
Heretofore described heating arrangements are liquid electric heater.Its heating effect is good, and with high mechanical strength, resistance to
Hot, anti-rotten, less scaling the advantages of.
Heretofore described autoalarm is acoustooptic alarm, points out effect is significant.
Heretofore described steel pipe is provided with filter.It removes the dust impurities in pipeline by filter, so as to protect
Excellent water quality is demonstrate,proved.
Heretofore described steel tube surface is provided with protective layer, the protective layer from the inside to the outside successively by acid-alkali-corrosive-resisting layer,
Heat-insulation layer and wearing layer are constituted；The acid-alkali-corrosive-resisting layer is boron phenolic-epoxy resin layer, and the heat-insulation layer is layer of polyurethane,
The wearing layer is potassium steel layer.It passes through the weatherability that protective layer greatly improves steel pipe, thus with good high temperature resistant,
Wear-resistant and acid-proof alkaline is durable in use.
Heretofore described steel pipe inner wall is coated with epoxy anticorrosion layer.Its steel pipe inner wall anti-corrosion capability is very strong, prolonged
It is durable.
Heretofore described steel duct is provided with insulation jacket device.Its heat insulation effect is notable, energy-conserving and environment-protective.
The outer surface of heretofore described steel pipe is covered with sound absorbing layer, and the sound absorbing layer includes foamed cotton plate and vibration-absorptive material
Layer.It passes through sound absorbing layer and significantly reduces produced noise in water cycle process, it is therefore prevented that surrounding people is subject to too big dry
Disturb, while also playing the effect of damping, buffering.
Beneficial effect：Compared with prior art, the present invention has advantages below：
1st, heretofore described a kind of groundwater supply pipeline with detection function, it passes through temperature and relative humidity and pressure
Relevant operating parameter inside force snesor real-time detection water supply line, while will detect that the data for obtaining are sent to display screen,
And can be sent to the concrete condition in pipeline on display screen in real time by its water-proof CCD camera, therefore staff can be conveniently
Real work situation inside ground monitoring water supply line, balanced valve is passed through along with it and reduces pressure differential and stream inside pipeline
Amount is poor, and in addition when deviation or failure occurs in operation, the autoalarm that its peripheral control unit is carried makes an immediate response concurrently
Go out alarm such that it is able to remind staff to note in time, therefore security is significantly improved, and cycling hot is ensure that well
Water system is run with security and stability for a long time.
2nd, heretofore described a kind of groundwater supply pipeline with detection function, it is very big that it passes through waterproof sealing sleeve pipe
Improve the sealing of pipeline, it is to avoid the erosion of the seepage and impurity of water, while also functioning to protective effect well, prevent
Pipeline is damaged by load, and service life greatly improves.
3rd, heretofore described a kind of groundwater supply pipeline with detection function, it passes through heating arrangements is carried out to water
Auxiliary heating, such that it is able to be rapidly achieved the water temperature needed for user, efficiency is very high；It is removed in pipeline by filter in addition
Dust impurities, so as to ensure that excellent water quality.
4th, heretofore described a kind of groundwater supply pipeline with detection function, it passes through protective layer and greatly improves
The weatherability of steel pipe, so that with good high temperature resistant, wear-resistant and acid-proof alkaline, along with its steel pipe inner wall is coated with
Epoxy anticorrosion layer is durable in use.
5th, a kind of heretofore described groundwater supply pipeline with detection function, its steel duct is provided with insulation jacket
Device, heat insulation effect is notable, energy-conserving and environment-protective；It passes through sound absorbing layer and significantly reduces produced in water cycle process making an uproar in addition
Sound, it is therefore prevented that surrounding people be subject to it is too big disturb, while also playing the effect of damping, buffering.
Brief description of the drawings
Fig. 1 is the partial structural diagram of groundwater supply pipeline in the present invention.
In figure：Steel pipe 1, temperature sensor 2, calculator 3, flow sensor 4, valve 5, waterproof sealing sleeve pipe 6, pressure are passed
Sensor 7, balanced valve 8.
Specific embodiment
Below in conjunction with specific embodiment, the present invention is described in detail, but illustrates protection scope of the present invention simultaneously simultaneously
The specific scope of the present embodiment is not limited to, based on the embodiment in the present invention, those of ordinary skill in the art are not making
The every other embodiment obtained under the premise of creative work, belongs to the scope of protection of the invention.
Embodiment 1
As shown in figure 1, a kind of groundwater supply pipeline with detection function of the present embodiment, includes steel pipe 1, temperature sensor
2nd, calculator 3, flow sensor 4, valve 5, waterproof sealing sleeve pipe 6, pressure sensor 7 and balanced valve 8.
The annexation of above-mentioned each part is as follows：Valve 5 and testing agency, the detection are sequentially provided with the steel pipe 1
Mechanism includes temperature sensor 2, flow sensor 4 and pressure sensor 7；The testing agency by calculator 3 with it is outer
The controller in portion is connected, and the controller carries display screen and autoalarm；The flow sensor 4 and pressure sensor
Balanced valve 8 is provided between 7, the surface of the steel pipe 1 is provided with multistage waterproof sealing sleeve pipe 6；Be provided with inside the flow sensor 4 with
The connected water-proof CCD camera of display screen.
The heating arrangements being connected with controller are provided with inside steel pipe 1 described in the present embodiment, the heating arrangements are liquid
Electric heater.
Autoalarm described in the present embodiment is acoustooptic alarm, and the steel pipe 1 is provided with filter.
The surface of steel pipe 1 described in the present embodiment is provided with protective layer, and the protective layer is from the inside to the outside successively by acid-alkali-corrosive-resisting
Layer, heat-insulation layer and wearing layer composition；The acid-alkali-corrosive-resisting layer is boron phenolic-epoxy resin layer, and the heat-insulation layer is polyurethane
Layer, the wearing layer is potassium steel layer；The steel pipe inner wall is coated with epoxy anticorrosion layer.
Steel duct described in the present embodiment is provided with insulation jacket device；The outer surface of the steel pipe is covered with sound absorbing layer, institute
State sound absorbing layer and include foamed cotton plate and cushioning material.
Embodiment 2
As shown in figure 1, a kind of groundwater supply pipeline with detection function of the present embodiment, includes steel pipe 1, temperature sensor
2nd, calculator 3, flow sensor 4, valve 5, waterproof sealing sleeve pipe 6, pressure sensor 7 and balanced valve 8.
The annexation of above-mentioned each part is as follows：Valve 5 and testing agency, the detection are sequentially provided with the steel pipe 1
Mechanism includes temperature sensor 2, flow sensor 4 and pressure sensor 7；The testing agency by calculator 3 with it is outer
The controller in portion is connected, and the controller carries display screen and autoalarm；The flow sensor 4 and pressure sensor
Balanced valve 8 is provided between 7, the surface of the steel pipe 1 is provided with multistage waterproof sealing sleeve pipe 6；Be provided with inside the flow sensor 4 with
The connected water-proof CCD camera of display screen.
The surface of steel pipe 1 described in the present embodiment is provided with protective layer, and the protective layer is from the inside to the outside successively by acid-alkali-corrosive-resisting
Layer, heat-insulation layer and wearing layer composition；The acid-alkali-corrosive-resisting layer is boron phenolic-epoxy resin layer, and the heat-insulation layer is polyurethane
Layer, the wearing layer is potassium steel layer；The steel pipe inner wall is coated with epoxy anticorrosion layer.
Steel duct described in the present embodiment is provided with insulation jacket device；The outer surface of the steel pipe is covered with sound absorbing layer, institute
State sound absorbing layer and include foamed cotton plate and cushioning material.
Embodiments of the invention are given for the sake of example and description, and are not exhaustively or by this to send out
It is bright to be limited to disclosed form.Many modifications and variations are for the ordinary skill in the art obvious.Choosing
It is, in order to more preferably illustrate principle of the invention and practical application, and to make one of ordinary skill in the art to select and describe embodiment
It will be appreciated that the present invention is suitable to the various embodiments with various modifications of special-purpose so as to design.
Claims (9)
1. a kind of with the groundwater supply pipeline for detecting function, it is characterised in that：Including：Steel pipe（1）, testing agency and calculator
（3）；
The steel pipe（1）On be sequentially provided with valve（5）And testing agency, the testing agency includes temperature sensor（2）, stream
Quantity sensor（4）And pressure sensor（7）；The testing agency passes through calculator（3）It is connected with outside controller, it is described
Controller carries display screen and autoalarm；The flow sensor（4）And pressure sensor（7）Between be provided with balanced valve
（8）, the steel pipe（1）Surface is provided with multistage waterproof sealing sleeve pipe（6）；The flow sensor（4）Inside is provided with and display screen
Connected water-proof CCD camera.
2. according to claim 1 a kind of with the groundwater supply pipeline for detecting function, it is characterised in that：The steel pipe
（1）Inside is provided with the heating arrangements being connected with controller.
3. according to claim 2 a kind of with the groundwater supply pipeline for detecting function, it is characterised in that：The heater
Structure is liquid electric heater.
4. according to claim 1 a kind of with the groundwater supply pipeline for detecting function, it is characterised in that：The automatic report
Alarm device is acoustooptic alarm.
5. according to claim 1 a kind of with the groundwater supply pipeline for detecting function, it is characterised in that：The steel pipe
（1）It is provided with filter.
6. according to claim 1 a kind of with the groundwater supply pipeline for detecting function, it is characterised in that：The steel pipe
（1）Surface is provided with protective layer, and the protective layer is made up of acid-alkali-corrosive-resisting layer, heat-insulation layer and wearing layer successively from the inside to the outside；Institute
It is boron phenolic-epoxy resin layer to state acid-alkali-corrosive-resisting layer, and the heat-insulation layer is layer of polyurethane, and the wearing layer is potassium steel layer.
7. according to claim 1 a kind of with the groundwater supply pipeline for detecting function, it is characterised in that：The steel pipe
（1）Inwall is coated with epoxy anticorrosion layer.
8. according to claim 1 a kind of with the groundwater supply pipeline for detecting function, it is characterised in that：The steel pipe
（1）Inside is provided with insulation jacket device.
9. according to claim 1 a kind of with the groundwater supply pipeline for detecting function, it is characterised in that：The steel pipe
（1）Outer surface be covered with sound absorbing layer, the sound absorbing layer includes foamed cotton plate and cushioning material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710017648.3A CN106768065A (en) | 2017-01-11 | 2017-01-11 | A kind of groundwater supply pipeline with detection function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710017648.3A CN106768065A (en) | 2017-01-11 | 2017-01-11 | A kind of groundwater supply pipeline with detection function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106768065A true CN106768065A (en) | 2017-05-31 |
Family
ID=58948808
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710017648.3A Pending CN106768065A (en) | 2017-01-11 | 2017-01-11 | A kind of groundwater supply pipeline with detection function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106768065A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107314249A (en) * | 2017-06-30 | 2017-11-03 | 合肥贺财工程项目管理有限公司 | A kind of building water channel test system |
| CN107942865A (en) * | 2017-11-29 | 2018-04-20 | 胜利阀门有限公司 | One kind is used for valve underground pipe network Internet of Things intelligence control system |
| CN110673535A (en) * | 2019-11-01 | 2020-01-10 | 杨国忠 | Piping lane disaster prevention intelligent control system |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105864873A (en) * | 2016-04-19 | 2016-08-17 | 上海浪超电子电器有限公司太仓分公司 | Precise controllable heat supply radiator |
| CN205606733U (en) * | 2016-04-19 | 2016-09-28 | 上海浪超电子电器有限公司太仓分公司 | Safe durable liquid cooling ware |
| CN206504752U (en) * | 2017-01-11 | 2017-09-19 | 昆山巴城路地管业科技有限公司 | A kind of groundwater supply pipeline with detection function |
-
2017
- 2017-01-11 CN CN201710017648.3A patent/CN106768065A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105864873A (en) * | 2016-04-19 | 2016-08-17 | 上海浪超电子电器有限公司太仓分公司 | Precise controllable heat supply radiator |
| CN205606733U (en) * | 2016-04-19 | 2016-09-28 | 上海浪超电子电器有限公司太仓分公司 | Safe durable liquid cooling ware |
| CN206504752U (en) * | 2017-01-11 | 2017-09-19 | 昆山巴城路地管业科技有限公司 | A kind of groundwater supply pipeline with detection function |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107314249A (en) * | 2017-06-30 | 2017-11-03 | 合肥贺财工程项目管理有限公司 | A kind of building water channel test system |
| CN107942865A (en) * | 2017-11-29 | 2018-04-20 | 胜利阀门有限公司 | One kind is used for valve underground pipe network Internet of Things intelligence control system |
| CN110673535A (en) * | 2019-11-01 | 2020-01-10 | 杨国忠 | Piping lane disaster prevention intelligent control system |
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| 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 |
Address after: The Palestinian town of Xueyuan Road city of Kunshan province Jiangsu 215300 No. 828 room 1 Applicant after: JIANGSU ZHENGDI PIPE INDUSTRY TECHNOLOGY CO.,LTD. Address before: Suzhou City, Jiangsu province 215300 town Kunshan city Xueyuan Road No. 828 room 1 Applicant before: KUNSHAN BACHENG LUDI PIPE INDUSTRY TECHNOLOGY CO.,LTD. |
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| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 215300 No.7 Workshop, No.66 Shipai Liji Road, Bacheng City, Kunshan City, Suzhou City, Jiangsu Province, 3rd Floor Applicant after: Jiangsu Zhengdi Technology Co.,Ltd. Address before: 215300 Room No.828, Bacheng College Road, Kunshan City, Jiangsu Province Applicant before: JIANGSU ZHENGDI PIPE INDUSTRY TECHNOLOGY CO.,LTD. |
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| CB02 | Change of applicant information | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170531 |
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| RJ01 | Rejection of invention patent application after publication |