CN206409671U - Automatic diverter and fluid pipeline automatic shunt system - Google Patents
Automatic diverter and fluid pipeline automatic shunt system Download PDFInfo
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- CN206409671U CN206409671U CN201720049638.3U CN201720049638U CN206409671U CN 206409671 U CN206409671 U CN 206409671U CN 201720049638 U CN201720049638 U CN 201720049638U CN 206409671 U CN206409671 U CN 206409671U
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- 239000012530 fluid Substances 0.000 title claims abstract description 40
- 239000000463 material Substances 0.000 claims abstract description 9
- 230000033001 locomotion Effects 0.000 claims abstract description 6
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 6
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 6
- -1 polytetrafluoroethylene Polymers 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 230000008859 change Effects 0.000 abstract description 3
- 238000009826 distribution Methods 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 abstract description 2
- 238000005259 measurement Methods 0.000 description 13
- 230000002153 concerted effect Effects 0.000 description 7
- 239000007788 liquid Substances 0.000 description 7
- 238000007789 sealing Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 230000005484 gravity Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000001186 cumulative effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 206010033799 Paralysis Diseases 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
The utility model belongs to pipeline shunt technical field, and in particular to a kind of automatic diverter and fluid pipeline automatic shunt system.Automatic diverter disclosed in the utility model, including supporting plate with holes, it is arranged on the valve seat in the supporting plate, the valve element used cooperatively with the valve seat, hole position in supporting plate is in valve element in view field on valve seat, in addition to hold-down support with holes, is connected between the hold-down support and valve element by elastic telescopic component, the valve element coordinates with elastic telescopic component can make axial movement of the valve element along the valve seat, and the valve seat is contacted with valve element can form surface seal structure.Automatic diverter can be according to produce load situation of change, and the flowmeter for following distribution material flow path to enter different technologies index automatically is measured.
Description
Technical field
The utility model belongs to pipeline shunt technical field, and in particular to a kind of automatic diverter and fluid pipeline are automatic
Separate system.
Background technology
For the big place of same pipeline liquid consumption span, to meet accurate measurement flow, different bores need to be used
Or the flow instrument of technical indicator carries out section metering.
Current flux instrument has certain measurement range, i.e. minimum discharge to maximum stream flow, its error and measurement range
It is directly proportional, i.e., measurement range is bigger, absolute error is also bigger.Measurement bore is bigger, and absolute error is also bigger.For trade knot
Calculate, the cumulative errors thereby resulted in are very important.
It is big for the liquid-consumed amount span of same pipeline, in order to reduce measurement error and cumulative errors, while take into account it is big across
The measurement range of degree, needs many flow instrument combined measurements.Control unit instrument, executing agency or valve are usually used in current automatic control
Interlocking measurement control is carried out with flow measurement instrument composition loop, now there are several flow instruments, it is necessary to which several stop valves enter
Row is oriented to.Unit instrument is more, and loop composition is complex, and investment cost is larger.When signal is transmitted as electricity control, once
Have a power failure, will be in paralyzed state, valve can not realize automatic guide according to load.
Utility model content
Technical problem to be solved in the utility model is：Offer is a kind of to direct fluid into different measuring instrumentss automatically
The automatic diverter and fluid pipeline automatic shunt system measured in pipeline.
The utility model solves the automatic diverter that its technical problem is used, including supporting plate with holes, is arranged on
Throwing of the hole position in valve element on valve seat in valve seat in the supporting plate, the valve element used cooperatively with the valve seat, supporting plate
In the domain of shadow zone, in addition to hold-down support with holes, connected between the hold-down support and valve element by elastic telescopic component, it is described
Valve element coordinates with elastic telescopic component can make axial movement of the valve element along the valve seat, and the valve seat is contacted with valve element to be formed
Surface seal structure.
It is further that the elastic telescopic component is groups of springs, one end of every spring in groups of springs is fixed on valve
The back side of core, the other end is fixed on hold-down support.
It is further that the valve element includes valve core case and valve element boss, and the valve core case is towards hold-down support, the valve
Core boss is towards valve seat, and the diameter of valve core case is bigger than the diameter of valve element boss, is provided with and matches somebody with somebody with the valve element boss on valve seat
The heavy platform of the valve seat used is closed, valve element boss is contacted with the heavy platform of valve seat can form surface seal structure.
It is further that the hold-down ring used cooperatively with the valve core case is additionally provided with valve seat, the hold-down ring
The diameter matches of internal diameter and the valve core case.
It is further that the valve element also includes the sphere convex body being arranged on valve element boss.
It is further that the material of valve element is stainless steel, and the material of valve seat is polytetrafluoroethylene (PTFE).
The utility model solves the fluid pipeline automatic shunt system that its technical problem is used, including big pipeline and by big
The small pipeline that pipe branch comes out, above-mentioned automatic diverter is provided with inside the big pipeline of small pipeline rear end.Herein " after
End " is that, using the cross section of small pipeline present position on big pipeline as boundary, in big pipeline, one end that fluid is first reached is front end, stream
The one end reached after body is rear end.
It is further that the big pipeline includes telescopic section, pipeline section where the telescopic section is located at the supporting plate and solid
Determine between bearing, in addition to for adjusting the adjusting means of the telescopic section stroke.
It is further that the adjusting means includes at least two groups bolt nuts, the hold-down support is arranged on telescopic section
On the big pipeline of rear end, and hold-down support includes the adjusting means fixed disk to the extension of big pipeline periphery, in telescopic section rear end
It is fixed with the ring flange being engaged with the adjusting means fixed disk on big pipeline, one end of the adjusting means is arranged on described
On adjusting means fixed disk, the other end is arranged on ring flange.
It is further that restriction orifice is installed in the small pipeline.
The beneficial effects of the utility model are：Valve element, can be with valve in the presence of self gravitation, buoyancy, elastic force, dynamic pressure
Body contacts to form surface seal structure, can also leave valve body, equivalent to valve element under liquid effects different in flow rate, can be with valve body
Sealing structure or the structure of unlatching are formed, so as to realize that whole automatic diverter is automatic according to the size of fluid flow
The purpose turned off or on；Automatic diverter of the present utility model can follow distribution automatically according to produce load situation of change
Material flow path, i.e. fluid are automatically imported different flowmeter pipelines, so that combined type flow instrument measuring environment condition is met, it is real
Now accurate metering.
Brief description of the drawings
Fig. 1 is the sectional view of the one embodiment for the fluid pipeline automatic shunt system that the utility model is related to；
Fig. 2 is the sectional view of the one embodiment for the automatic diverter that the utility model is related to；
Fig. 3 is the structural representation of one embodiment that the valve seat that the utility model is related to is engaged with valve element；
Fig. 4 is the structural representation of the one embodiment for the small pipeline that the utility model is related to；
Parts, position and numbering in figure：It is convex that supporting plate 1, valve seat 2, valve seat sink platform 21, valve element 3, valve core case 31, valve element
It is platform 32, sphere convex body 33, hold-down support 4, adjusting means fixed disk 41, bolt hole 411, elastic telescopic component 5, hold-down ring 6, big
Pipeline 100, telescopic section 101, small pipeline 200, restriction orifice 201, adjusting means 300, ring flange 400.
Embodiment
The utility model is described in further detail below in conjunction with the accompanying drawings.
As shown in Figures 1 to 4, the automatic diverter that the utility model is related to, including supporting plate 1 with holes, are arranged on
Valve seat 2 in the supporting plate 1, supporting plate 1 is used for fixed valve base 2, and during installation, supporting plate 1 is fixed on the pipeline for treating measurement of discharge
On；Hole position in the valve element 3 used cooperatively with the valve seat 2, supporting plate 1 in valve element 3 in view field on valve seat 2, this
The effect in hole is the passage that circulation is provided for fluid；Also include hold-down support 4 with holes, between the hold-down support 4 and valve element 3
Connected by elastic telescopic component 5, the effect of hold-down support 4 is fixed elastic telescopic component 5, and during installation, hold-down support 4 is fixed
On the pipeline for treating measurement of discharge；Hold-down support 4, which is also acted as, weakens the disturbance that valve element 3 is caused to fluid：Because valve element 3 is choked flow
Part, can disturb the flow regime of fluid, to weaken the disturbance that valve element 3 is caused to fluid, the structure reference of hold-down support 4
Flow conditioner processing and fabricating, can refer to Louth flow adjustment phase, Spearman flow conditioner, and its making is simple in construction, into
This is low；When fluid is by hold-down support 4, abnormal flowing can be weakened, shorten necessary flow development length, be easy to rear end flow
The installation of instrument；The valve element 3 coordinates with elastic telescopic component 5 can make axial movement of the valve element 3 along the valve seat 2, i.e. valve
Core 3 can be moved under the fluid matasomatism of different flow towards valve seat 2, so as to contact the face for being formed and preventing fluid from passing through with valve seat 2
Sealing structure, is moved away from valve seat 2, so that forming the interval passed through for fluid between valve element 3 and valve seat 2.For
The same big place of pipeline liquid consumption span, situation as shown in Figure 1, the path that fluid passes through has two, all the way to be small
Pipeline 200, is all the way big pipeline 100.In use, automatic diverter is arranged in big pipeline 100.When flow is small, liquid
Pass through from small pipeline 200, the valve element 3 in automatic diverter in big pipeline 100 is contacted with valve seat 2, the path is in nothing
Fluid passes through state；When flow is big, the valve element 3 of the automatic diverter in big pipeline 100 is separated with valve seat 2, and fluid can be from
Big pipeline 100 and small pipeline 200 pass through.
The motion principle of above-mentioned valve element 3 is：In fluid line as shown in Figure 1, the power that valve element 3 is subject to mainly has weight
Power, buoyancy, elastic force, dynamic pressure.Upwards, gravity and elastic force (spring-compressed state) are downwards for buoyancy and dynamic pressure.The motion of valve element 3
Process is：When making a concerted effort downward, valve element 3 is run downwards suffered by valve element 3, the contact formation surface seal structure of valve seat 2 prevents stream
Body passes through, and now automatic diverter is closed；Moved when when making a concerted effort upward, valve element 3 is upward suffered by valve element 3,
Fluid is in opening by the gap between valve element 3 and valve seat 2, now automatic diverter.And valve element 3 is being moved through upwards
Cheng Zhong, suffered to make a concerted effort to be gradually reduced, when it is zero to make a concerted effort, valve element 3 rests on certain position.
Specifically, in above-mentioned embodiment, the elastic telescopic component 5 is every bullet in groups of springs, groups of springs
One end of spring is fixed on the back side of valve element 3, and the other end is fixed on hold-down support 4.Spring is fixed by the way of welding, one end
On the back side for being welded on valve element 3, the other end is welded on hold-down support 4.
Specifically, in above-mentioned embodiment, the valve element 3 includes valve core case 31 and valve element boss 32, the valve element
Seat 31 is towards hold-down support 4, and valve core case 31 can play a part of fixed elastic telescopic component 5 and valve element boss 32, the valve element
Boss 32 is towards valve seat 2, and the diameter of valve core case 31 is bigger than the diameter of valve element boss 32, is provided with valve seat 2 and the valve element
The heavy platform 21 of valve seat that boss 32 is used cooperatively, valve element boss 32 is contacted with the heavy platform 21 of valve seat can form surface seal structure.Work as pipeline
Interior flow is small, it is not necessary to when being flowed through from big pipeline 100, and what valve element 3 was subject to makes a concerted effort downwards, to make valve element 3 move to valve seat 2, will
Valve element boss 32 sinks to valve seat and sunk in platform 21, makes valve element boss 32 contact to form surface seal structure with the heavy platform 21 of valve seat, so as to hinder
Only liquid flows through from big pipeline 100.The shape of valve element boss 32 and the heavy platform 21 of valve seat matches, and can be circle, can also
It is square.
Specifically, in above-mentioned embodiment, the pressure used cooperatively with the valve core case 31 is additionally provided with valve seat 2
Tight ring 6, the diameter matches of the internal diameter of the hold-down ring 6 and the valve core case 31.Hold-down ring 6 can play a part of firm valve element 3,
Make valve element 3 contacted with valve seat 2 formed by sealing structure more consolidate.As shown in figure 1, hold-down ring 3 and valve seat 2 can pass through spiral shell
Nail is fixed in supporting plate 1.
Specifically, in order to reduce influence of the valve element 3 to fluid, the valve element 3 also includes being arranged on valve element boss 32
Sphere convex body 33.The arcwall face of sphere convex body 33 is upstream face, can reduce the interference to fluid, reduces crushing.
Specifically, in above-mentioned embodiment, leakage rate is small during in order to ensure that choke apparatus is closed, valve element
3 material is stainless steel, and the material of valve seat 2 is polytetrafluoroethylene (PTFE).Valve seat 2 selects different materials from valve element 3, and its elasticity becomes
Shape, intensity are different, it is possible to increase the sealing property of surface seal structure.Valve seat 2 is with the contact surface of valve element 3 using finishing, and its is thick
Rugosity is small, highly polished, it is ensured that valve element 3 and the sealing surface of the forced contact of valve seat 2 formation, the leakage amount of fluid passed through are small.
As shown in figure 1, the fluid pipeline automatic shunt system that the utility model is related to, including big pipeline 100 and by managing greatly
The small pipeline 200 that road 100 is branched off, is provided with automatic point as described above inside the big pipeline 100 of the rear end of small pipeline 200
Flow device.Automatic diverter is to be designed processing and manufacturing using hydromechanical principle, it is ensured that in low discharge, automatic point
Stream device is closed, and fluid can only pass through from small pipeline 200；When big flow, in big pipeline automatic diverter from
Dynamic to open, fluid can pass through from big pipeline 100 and small pipeline 200.
Specifically, in above-mentioned embodiment, for the stroke of regulation elasticity telescopic component 5, the big pipeline 100
Including telescopic section 101, the place pipeline section of telescopic section 101 is located between the supporting plate 1 and hold-down support 4, in addition to for
Adjust the adjusting means 300 of the stroke of telescopic section 101.It is preferred that, the adjusting means 300 includes at least two groups bolt spiral shells
Cap, the hold-down support 4 is arranged on the big pipeline 100 of the rear end of telescopic section 101, and hold-down support 4 is included to outside big pipeline 100
Zhou Yanshen adjusting means fixed disk 41, is fixed with the big pipeline 100 of the rear end of telescopic section 101 and is fixed with the adjusting means
The ring flange 400 that disk 41 is engaged, one end of the adjusting means 300 is arranged on the adjusting means fixed disk 41, another
End is arranged on ring flange 400.By the spacing between the balanced adjustment top nut of ring flange 400, pipeline extension section 101 can be achieved
It is uniform flexible, it is ensured that the uniform stressed of elastic telescopic component 5.
Specifically, in above-mentioned embodiment, in order to limit maximum stream flow of the small pipeline 200 by fluid, described
Restriction orifice 201 is installed in small pipeline 200.Restriction orifice 201 can ensure when big flow is consumed, and more fluids are from big
Pipeline 100 passes through, so as to take into account the measurement range of different bores or technical indicator instrument.
In above-mentioned embodiment, valve seat 2 can refer to restriction orifice and be calculated, by normal fluid operating mode pressure and
Pass through actual consumption peak * safety coefficient exploitations.
Valve element 3 is mainly had gravity, buoyancy, elastic force, dynamic pressure, and the power that other factorses are produced is smaller negligible.
Its geometry is, by the aperture design of valve seat 2, prespecified geometric, similar single seat valve core, to calculate volume, then calculate valve element
3 weight, using iterative calculation, last refinement concrete structure.Its calculating process is as follows：
1) buoyancy that valve element 3 is subject to：
FIt is floating=ρLiquid×g×vValve element (1)
In formula：ρLiquid--- detected fluid density；
G------ acceleration of gravity；
VValve element--- the volume (shape being contemplated according to valve element 3, calculate bulking value) of valve element 3
2) elastic force that valve element 3 is subject to：
The elastic force that valve seat 2 is given by elastic telescopic component 5 is directly proportional to the reduction length of elastic telescopic component 5
FBullet=n × k × Δ X (2)
In formula：The radical of spring in n------- elastic telescopics component 5
The coefficient of stiffiness of k------- springs；
The stretch/shrink length that Δ X----- springs are deformed upon
3) dynamic pressure that valve element 3 is subject to：
In terms of flow direction, what the front end of valve element 3 was subject to is total head, and it is to be pressed that the rear end of valve element 3, which is subject to, i.e. static pressure, two
Person has pressure difference, and its pressure difference can produce pressure to valve seat 2.
FIt is dynamic=S × (P1-P2) (3)
P1-P2=1/2 ρLiquid×V2
In formula：The effective area of S-------- valve elements 3；
The total head of the front end of P1-------- valve elements 3；
The static pressure of the rear end of P2-------- valve elements 3；
The flow velocity of V-------- fluids；
ρLiquid--- -- detected fluid density；
4) it is using upward power as just, what valve element 3 was subject to makes a concerted effort
When valve element 3 is not contacted with valve seat 2, or the power on critical contact state (not giving the holding power of valve element 3), orientation is
Just, downward power is negative, FBulletBy compression consider, then make a concerted effort be：
FClose=FIt is floating-FBullet+FIt is dynamic-GValve seat
Then GValve seat=FClose-(FIt is floating-FBullet+FIt is dynamic) (4)
G in formulaValve seatFor the weight of valve seat 2, its value is calculated as：FClose=0, V value are the minimum discharges that big pipeline will pass through,
Spring does not deform FBullet=0 (or setting value), brings formula (1) (2) (3) into formula (4) and is calculated, draw the weight of valve seat 2.
Elastic telescopic component 5 can be made up of multiple Single spring elements, and point is welded on hold-down support 4 and valve element 3, for valve
Core 3 provides the elastic force with diameter parallel.In off position, the location of spring is the position that formula (4) is calculated to automatic diverter
Put, but because manufacturing deviation need to be adjusted.Its scene is adjusted to：When big pipeline 100 is by minimum discharge, i.e. critical value, adjust
The stroke of whole groups of springs, makes valve element 3 be in critical contact state with valve seat 2, i.e. the interaction force of valve seat 2 and valve element 3 is
Zero, now automatic diverter is still in closed mode.When more than critical value, valve element 3 lifts off a seat 2, in opening.
The critical contact state of valve element 3 and valve seat 2 is to realize adjustment by estimating vent flow change.
Claims (10)
1. automatic diverter, it is characterised in that：Including supporting plate (1) with holes, the valve seat in the supporting plate (1) is arranged on
(2) throwing of the hole position in valve element (3) on valve seat (2) in the valve element (3), used cooperatively with the valve seat (2), supporting plate (1)
In the domain of shadow zone, in addition to hold-down support (4) with holes, pass through elastic telescopic component between the hold-down support (4) and valve element (3)
(5) connect, the valve element (3) coordinates with elastic telescopic component (5) can make axial movement of the valve element (3) along the valve seat (2),
The valve seat (2) contacts with valve element (3) can form surface seal structure.
2. automatic diverter according to claim 1, it is characterised in that：The elastic telescopic component (5) is groups of springs,
One end of every spring in groups of springs is fixed on the back side of valve element (3), and the other end is fixed on hold-down support (4).
3. automatic diverter according to claim 1, it is characterised in that：The valve element (3) include valve core case (31) and
Valve element boss (32), the valve core case (31) is towards hold-down support (4), and the valve element boss (32) is towards valve seat (2), valve core case
(31) diameter is bigger than the diameter of valve element boss (32), is provided with and is used cooperatively with the valve element boss (32) on valve seat (2)
Valve seat sink platform (21), the heavy platform (21) of valve element boss (32) and valve seat, which is contacted, can form surface seal structure.
4. automatic diverter according to claim 3, it is characterised in that：It is additionally provided with valve seat (2) and the valve
The hold-down ring (6) that core print seat (31) is used cooperatively, the internal diameter of the hold-down ring (6) and the diameter matches of the valve core case (31).
5. automatic diverter according to claim 3, it is characterised in that：The valve element (3) also includes being arranged on valve element
Sphere convex body (33) on boss (32).
6. automatic diverter according to claim 1, it is characterised in that：The material of valve element (3) is stainless steel, valve seat
(2) material is polytetrafluoroethylene (PTFE).
7. fluid pipeline automatic shunt system, including big pipeline (100) and the small pipeline that is branched off by big pipeline (100)
(200), it is characterised in that：Installed inside the big pipeline (100) of small pipeline (200) rear end any just like in claim 1 to 6
Automatic diverter described in claim.
8. fluid pipeline automatic shunt system according to claim 7, it is characterised in that：The big pipeline (100) includes
Telescopic section (101), pipeline section is located between the supporting plate (1) and hold-down support (4) where the telescopic section (101), in addition to
Adjusting means (300) for adjusting the telescopic section (101) stroke.
9. fluid pipeline automatic shunt system according to claim 8, it is characterised in that：Adjusting means (300) bag
At least two groups bolt nuts are included, the hold-down support (4) is arranged on the big pipeline (100) of telescopic section (101) rear end, and it is fixed
Bearing (4) includes the adjusting means fixed disk (41) extended to big pipeline (100) periphery, the big pipe in telescopic section (101) rear end
The ring flange (400) being engaged with the adjusting means fixed disk (41), the adjusting means (300) are fixed with road (100)
One end be arranged on the adjusting means fixed disk (41), the other end is arranged on ring flange (400).
10. fluid pipeline automatic shunt system according to claim 7, it is characterised in that：In the small pipeline (200)
Restriction orifice (201) is installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720049638.3U CN206409671U (en) | 2017-01-16 | 2017-01-16 | Automatic diverter and fluid pipeline automatic shunt system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720049638.3U CN206409671U (en) | 2017-01-16 | 2017-01-16 | Automatic diverter and fluid pipeline automatic shunt system |
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| Publication Number | Publication Date |
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| CN206409671U true CN206409671U (en) | 2017-08-15 |
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ID=59555978
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720049638.3U Active CN206409671U (en) | 2017-01-16 | 2017-01-16 | Automatic diverter and fluid pipeline automatic shunt system |
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| CN (1) | CN206409671U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109596184A (en) * | 2018-12-29 | 2019-04-09 | 连云港连利·福思特表业有限公司 | A kind of hybrid water meter |
| CN116138528A (en) * | 2022-10-27 | 2023-05-23 | 深圳市第三人民医院 | Heat extraction assembly and protective clothing |
-
2017
- 2017-01-16 CN CN201720049638.3U patent/CN206409671U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109596184A (en) * | 2018-12-29 | 2019-04-09 | 连云港连利·福思特表业有限公司 | A kind of hybrid water meter |
| CN116138528A (en) * | 2022-10-27 | 2023-05-23 | 深圳市第三人民医院 | Heat extraction assembly and protective clothing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: LUZHOU BEIFANG CELLULOSE Co.,Ltd. Assignor: LUZHOU NORTH CHEMICAL INDUSTRY Co.,Ltd. Contract record no.: 2018510000040 Denomination of utility model: Automatic automatic current drive system of diverging device and fluid pipeline Granted publication date: 20170815 License type: Common License Record date: 20180816 |
|
| EE01 | Entry into force of recordation of patent licensing contract | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20231206 Address after: 646003 Gaoba Luzhou North cellulose Co., Ltd., Longmatan District, Luzhou City, Sichuan Province Patentee after: LUZHOU BEIFANG CELLULOSE Co.,Ltd. Address before: 646003 Luzhou City, Sichuan province Longmatan District dam Luzhou North Chemical Industry Co. Ltd Patentee before: LUZHOU NORTH CHEMICAL INDUSTRY Co.,Ltd. |
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| TR01 | Transfer of patent right |