CN105920880A - Inverse suction prevention and balanced air distribution type oil-water separation vacuum tank - Google Patents
Inverse suction prevention and balanced air distribution type oil-water separation vacuum tank Download PDFInfo
- Publication number
- CN105920880A CN105920880A CN201610439833.7A CN201610439833A CN105920880A CN 105920880 A CN105920880 A CN 105920880A CN 201610439833 A CN201610439833 A CN 201610439833A CN 105920880 A CN105920880 A CN 105920880A
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- Prior art keywords
- oil
- suck
- tank
- water separation
- tank body
- Prior art date
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- Granted
Links
- 238000000926 separation method Methods 0.000 title claims abstract description 56
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 36
- 238000009826 distribution Methods 0.000 title claims abstract description 31
- 230000002265 prevention Effects 0.000 title abstract 4
- 239000007788 liquid Substances 0.000 claims abstract description 34
- 238000012856 packing Methods 0.000 claims description 27
- 230000001502 supplementing effect Effects 0.000 claims description 13
- 239000007921 spray Substances 0.000 claims description 8
- 238000004080 punching Methods 0.000 claims description 6
- 238000012935 Averaging Methods 0.000 claims description 3
- 238000012790 confirmation Methods 0.000 claims description 3
- 238000013508 migration Methods 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 239000011148 porous material Substances 0.000 claims description 3
- 238000009827 uniform distribution Methods 0.000 claims description 3
- 230000005012 migration Effects 0.000 claims description 2
- 239000000945 filler Substances 0.000 abstract 4
- 238000005192 partition Methods 0.000 abstract 2
- 238000005507 spraying Methods 0.000 abstract 2
- 239000012530 fluid Substances 0.000 description 9
- 238000013461 design Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 208000036366 Sensation of pressure Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D17/00—Separation of liquids, not provided for elsewhere, e.g. by thermal diffusion
- B01D17/005—Separation of liquids, not provided for elsewhere, e.g. by thermal diffusion by thermal diffusion
Abstract
The invention discloses an inverse suction prevention and balanced air distribution type oil-water separation vacuum tank. The oil-water separation vacuum tank comprises a tank body, the top end of the tank body is provided with an air outlet and an oil inlet, the lower middle section of the tank body is provided with an air supply port, the bottom of the tank body is provided with an oil outlet, and an inverse suction preventing air-liquid separation device, a filler layer and an oil collection tank are arranged in the tank body sequentially from top to bottom. The inverse suction preventing air-liquid separation device comprises a spraying plate, an inverse suction preventing filter basket and an air-liquid separation filter screen, and the spraying plate is arranged below the oil inlet and used for distributing oil flow. A space for air-liquid separation is reserved between the inverse suction preventing filter basket and an air-liquid separation filter screen. A middle partition is arranged in the middle of the filler layer and provided with punched holes, and a gap L1 is reserved between the middle partition and the tank body. Pall rings are arranged in the filler layer, the outer periphery of the inverse suction preventing filter basket is further filled with Pall rings with specific surface areas different from those of the Pall rings in the filler layer. The inverse suction prevention and balanced air distribution type oil-water separation vacuum tank is simple in structure, high in oil-water separation efficiency and effective in prevention of a vacuum pump from inversely sucking oil into the vacuum pump in air suction.
Description
Technical field
The present invention relates to vacuum tank technical field, especially a kind of anti-suck type equilibrium gas distribution formula oil-water separation vacuum tank.
Background technology
Oil-water separation mainly according to water and the difference of the vapourizing temperature of oil, utilizes under a certain vacuum state, specified temp
Time oil in moisture content become water vapour and oil still maintains liquid constant, the single-phase mixing of liquid liquid of oil and water becomes oil and water vapour
Liquid gas two-phase mixtures, then realize oil-water separation by gas-liquid separation..
When using vacuum tank to carry out oil-water separation, in order to obtain bigger oil film surface area, design would generally use
The Pall ring that specific surface area is bigger, and this Pall ring makes oil stream fall into vacuum tank due to the pass of viscosity through shower plate
System can affect oil and flow down the speed of fall, and the air-flow of QI invigorating is after expanding simultaneously, and oil stream formation is lifted by bigger air velocity
Power, also have impact on oil and flows down the speed of fall.When oil flow down reduction of speed spend slow time, oil stream easily flows into bleed-off passage, thus handle
Oil stream sucks vacuum pump, causes the damage of vacuum pump.
Summary of the invention
The technical problem to be solved in the present invention is: overcome the deficiency in prior art, it is provided that a kind of simple in construction, can prevent
Fluid by suck-back enter vacuum pump and oil-water separation efficiency high anti-suck type equilibrium gas distribution formula oil-water separation vacuum tank.
The technical solution adopted for the present invention to solve the technical problems is: a kind of anti-suck type equilibrium gas distribution formula oil-water separation
Vacuum tank, including tank body, described tank body top has gas outlet and oil-in, middle hypomere have gas supplementing opening, bottom has fuel-displaced
Mouthful, be sequentially provided with anti-suck gas-liquid separation device and packing layer and oil sump tank in described tank body from the top down, described packing layer and
Isolated by dividing plate between oil sump tank；Described anti-suck gas-liquid separation device includes the distribution oil stream being arranged on below oil-in
Shower plate, anti-suck filter basket and gas-liquid separation filter screen；Leave gas-liquid between described anti-suck filter basket and gas-liquid separation filter screen to divide
From space；Described packing layer middle position is provided with central dividing plate, and described central dividing plate is provided with punching, and punching hole diameter is little
In Pall ring averaging projection gap, and leaving gap L 1 between central dividing plate and tank body, the air-flow that gas supplementing opening enters is by gap L 1
Upwards, to centre converge migration, form Jun Heng convection current with oil stream；Pall ring, described anti-suck it is provided with in described packing layer
Filter basket periphery is separately filled with Pall ring, the specific surface of Pall ring at the Pall ring of described anti-suck filter basket periphery filling and packing layer
Long-pending difference.
Further, the diameter d of described tank body selects according to oil viscosity, oil Flow Velocity, and diameter d is directly proportional with both.
Further, when oil viscosity is less than 100cst, and when flow is less than 200L/min, tank diameter d1 scope is: 250mm
<d1<550mm;When oil viscosity is more than or equal to 100cst to 200cst, and when flow is less than 200L/min, tank diameter d scope is:
350mm<d1<750mm;When oil viscosity is more than more than 200cst, and when flow is less than 200L/min, tank diameter d1 scope is:
450mm<d1<900mm.Remaining flow, with reference to this tank diameter scope, takes the circumstances into consideration change.
Further, the Pall ring of described tank body packing layer selects size according to different oil viscosity, each confirmation same
Under one oil viscosity, the specific surface area of the Pall ring that anti-suck filter basket periphery is filled is all higher than the specific surface of the Pall ring at packing layer
Long-pending.
Further, when oil viscosity is less than 100cst, and Pall ring diameter d2 scope is: 12mm < d2 < 25mm;Work as oil viscosity
More than or equal to 100cst to 200cst, Pall ring diameter d2 scope is: 16mm < d2 < 32mm;When oil viscosity is more than 200cst,
Pall ring diameter d2 scope is: 22mm < d2 < 50mm.Remaining flow, with reference to this tank diameter scope, takes the circumstances into consideration change.
Further, described anti-suck filter basket include being fixed on the small-bore gusset plate under the shower plate of distribution oil stream and
Being arranged on the large aperture base plate bottom the gusset plate of small-bore, described gusset plate peripheral ring is around at least two-layer gas-liquid separation net.
Further, described shower plate has distribution, the spray apertures of uniform distribution oil stream in annulus.
Further, described central dividing plate is lain directly in the middle of the packing layer of tank body by positioning bar.
Further, described baffle central, gas supplementing opening are arranged over bell jar, and the dividing plate annulus of bell jar surrounding is provided with oil
Flow the uniform pore openings that gentle stream passes through.
Further, described tank body lower end is provided with switch and interface of the level gauge.
The invention has the beneficial effects as follows: the anti-suck type equilibrium gas distribution formula oil-water separation vacuum tank that the present invention provides, structure
Simply, can effectively prevent from, during vacuum pump air-breathing, fluid suck-back is entered vacuum pump；And uniform air distribution in tank body, oil-water separation efficiency
High.
Accompanying drawing explanation
The present invention is further described with embodiment below in conjunction with the accompanying drawings.
Fig. 1 is internal view of the present invention.
Fig. 2 is axonometric chart of the present invention.
Fig. 3 is top plan of the present invention.
Fig. 4 be in Fig. 3 A-A to the sectional view of anti-suck gas-liquid separation device.
Fig. 5 is anti-suck gas-liquid separation device top view of the present invention.
Fig. 6 is the shower plate structural representation of distribution oil stream.
Fig. 7 is intermediate deck structure figure.
Fig. 8 is bell jar and diaphragm structure schematic diagram above gas supplementing opening.
Fig. 9 is diaphragm structure top view.
Figure 10 is diaphragm structure axonometric chart.
In figure, 1. tank body, 2. gas outlet, 3. oil-in, 4. gas supplementing opening, 5. oil-out, 6. switch, 7. liquidometer connects
Mouthful, 8. packing layer, the 9. shower plate of distribution oil stream, 9-1. spray apertures, 10. anti-suck filter basket, 10-1. small-bore gusset plate,
10-2. large aperture base plate, 10-3. gas-liquid separation net, 11. gas-liquid separation filter screens, 12. Pall rings, 13. central dividing plates, 14,
Bell jar, 15, perforate, 16, dividing plate.
Detailed description of the invention
Presently in connection with accompanying drawing, the present invention is further illustrated.These accompanying drawings are the schematic diagram of simplification only with signal side
The basic structure of the formula explanation present invention, therefore it only shows the composition relevant with the present invention.
As shown in Figure 1, Figure 2, a kind of anti-suck type shown in Fig. 7 equalizes gas distribution formula oil-water separation vacuum tank, including tank body 1, tank
Body 1 top has gas outlet 2 and oil-in 3, middle hypomere have gas supplementing opening 4, bottom has oil-out 5, and in tank body, 1 from the top down
It is sequentially provided with anti-suck gas-liquid separation device and packing layer 8 and oil sump tank, is isolated by dividing plate between packing layer 8 and oil sump tank；
Anti-suck gas-liquid separation device includes shower plate 9, anti-suck filter basket 10 and the gas-liquid being arranged on the distribution oil stream below oil-in 3
Separate filter screen 11；The space of gas-liquid separation is left between anti-suck filter basket 10 and gas-liquid separation filter screen 11；Packing layer 8 centre position
Place is provided with central dividing plate 13, and central dividing plate 13 is provided with punching, and punching hole diameter is less than Pall ring averaging projection gap, and middle interval
Leaving gap L 1 between plate 13 and tank body 1, central dividing plate 13 makes air-flow that gas supplementing opening 4 enters by gap L 1 upwards, converge to centre
Poly-migration, forms Jun Heng convection current with oil stream；Being provided with Pall ring 12 in packing layer 8, described anti-suck filter basket 10 periphery is separately filled
Having Pall ring 12, the Pall ring 12 that anti-suck filter basket 10 periphery is filled is different from the specific surface area of Pall ring 12 at packing layer 8.In
Space bar 13 is lain directly in by positioning bar in the middle of the packing layer 8 of tank body 1.For convenience of observing and controlling, tank body 1 lower end is provided with
Switch 6 and interface of the level gauge 7.
The diameter d of tank body 1 selects according to oil viscosity, oil Flow Velocity, and diameter d is directly proportional with both.When oil viscosity is less than
100cst, when flow is less than 200L/min, tank diameter d1 scope is: 250mm < d1 < 550mm;When oil viscosity is more than or equal to
100cst to 200cst, when flow is less than 200L/min, tank diameter d scope is: 350mm < d1 < 750mm;When oil viscosity is more than
More than 200cst, when flow is less than 200L/min, tank diameter d1 scope is: 450mm < d1 < 900mm.Remaining flow is with reference to this
Tank diameter scope, takes the circumstances into consideration change.
As in figure 2 it is shown, the Pall ring 12 of tank body 1 packing layer 8 selects size according to different oil viscosity, each confirmation same
Under one oil viscosity, the specific surface area of the Pall ring 12 that anti-suck filter basket 10 periphery is filled is all higher than the Pall ring 12 at packing layer 8
Specific surface area.When oil viscosity is less than 100cst, and Pall ring diameter d2 scope is: 12mm < d2 < 25mm；When oil viscosity is more than
In 100cst to 200cst, Pall ring diameter d scope is: 16mm < d2 < 32mm；When oil viscosity is more than 200cst, and Pall ring is straight
Footpath d scope is: 22mm < d2 < 50mm.Remaining flow, with reference to this tank diameter scope, takes the circumstances into consideration change.
As shown in Figures 2 to 6, anti-suck filter basket 10 includes the small-bore gusset being fixed under the shower plate 9 of distribution oil stream
Plate 10-1 and be arranged on the large aperture base plate 10-2 bottom the gusset plate 10-1 of small-bore, gusset plate 10-1 peripheral ring is around at least two-layer
Gas-liquid separation net 10-3.There is on shower plate 9 distribution, spray apertures 9-1 of uniform distribution oil stream in annulus.
As shown in Fig. 2, Fig. 8, Fig. 9, Figure 10, baffle central, gas supplementing opening 4 are arranged over bell jar 14, and bell jar surrounding every
Plate 16 annulus is provided with oil and flows the uniform pore openings 15 that gentle stream passes through.
Operationally, fluid enters from body top oil-in 3, enters inside vacuum tank by spray apertures, by spray
Spray apertures 9-1 on plate 9 is sprayed to downwards packing layer 8, and fluid the most uniformly spreads out cloth in packing layer 8, in Pall ring surface shape
Becoming oil film, fluid surface area increases rapidly.The gas supplementing opening 4 of gas hypomere from tank body 1 enters, and the gas that gas supplementing opening 4 enters can
Gap L 1 along central dividing plate 13 with tank body 1 moves upward, and the fluid under drenching with shower plate 9 forms the gas to wearing, after expansion
There is relatively low water vapour water vapour vapor pres-sure, the water vapour of vaporization in the rapid band in oil film surface goes rancid, formed in tank body
Gas-liquid separation, the mixed gas containing water vapour is discharged from vacuum pump through gas outlet 2, is completed oil water separation process.
In the process, owing to the viscosity profile scope of fluid is too big, often select and viscosity uniformity in specific surface area
Aspect be difficult to equilibrium consider, therefore according to the difference of viscosity, be segmented in the design 3 kinds of viscosity classifications (below 100cst,
100cst～220cst and more than 220cst) rationally select Pall ring 12 size, reach the balance between viscosity and oil film formation.
Pall ring 12 and central dividing plate 13 that specific surface area is different can be easy to fluid and gas in vacuum tank to wearing, and improve oil-water separation
Efficiency anti-suck gas-liquid separation device then can be prevented effectively from fluid and be entered vacuum pump by suck-back and affect the normal use of vacuum pump.
Above-mentioned embodiment only for technology design and the feature of the present invention are described, its object is to allow and is familiar with technique
Personage will appreciate that present disclosure and is carried out, and can not limit the scope of the invention with this, all according to this
The equivalence that bright spirit is made changes or modifies, and all should contain within the scope of the present invention.
Claims (10)
1. an anti-suck type equilibrium gas distribution formula oil-water separation vacuum tank, including tank body (1), described tank body (1) top has
QI KOU (2) and oil-in (3), middle hypomere have gas supplementing opening (4), bottom has oil-out (5), it is characterized in that: in described tank body
(1) anti-suck gas-liquid separation device and packing layer (8) and oil sump tank, described packing layer (8) and oil-collecting it are sequentially provided with from the top down
Isolated by dividing plate (16) between case；Described anti-suck gas-liquid separation device includes the distribution being arranged on oil-in (3) lower section
Shower plate (9), anti-suck filter basket (10) and the gas-liquid separation filter screen (11) of oil stream；Described anti-suck filter basket (10) and gas-liquid separation
The space of gas-liquid separation is left between filter screen (11)；Described packing layer (8) middle position is provided with central dividing plate (13), described
Central dividing plate (13) is provided with punching, and punching hole diameter is less than Pall ring averaging projection gap, and central dividing plate (13) and tank body (1)
Between leave gap L 1, the air-flow that gas supplementing opening (4) enters by gap L 1 upwards, to centre converge migration, with oil stream formed Jun Heng
Convection current；Being provided with Pall ring (12) in described packing layer (8), described anti-suck filter basket (10) periphery is separately filled with Pall ring
(12), the specific surface area at Pall ring (12) and packing layer (8) place Pall ring (12) that described anti-suck filter basket (10) periphery is filled
Different.
Anti-suck type the most according to claim 1 equilibrium gas distribution formula oil-water separation vacuum tank, is characterized in that: described tank body
(1) diameter d1 selects according to oil viscosity, oil Flow Velocity, and diameter d is directly proportional with both.
Anti-suck type the most according to claim 2 equilibrium gas distribution formula oil-water separation vacuum tank, is characterized in that: work as oil viscosity
Less than 100cst, when flow is less than 200L/min, tank diameter d1 scope is: 250mm < d1 < 550mm;When oil viscosity is more than
In 100cst to 200cst, when flow is less than 200L/min, tank diameter d scope is: 350mm < d1 < 750mm;When oil viscosity is big
In more than 200cst, when flow is less than 200L/min, tank diameter d1 scope is: 450mm < d1 < 900mm.
Anti-suck type the most according to claim 1 equilibrium gas distribution formula oil-water separation vacuum tank, is characterized in that: described tank body
(1) Pall ring (12) of packing layer (8) selects size, under the oil viscosity of each confirmation, anti-suck according to different oil viscosities
The specific surface area of the Pall ring (12) that filter basket (10) periphery is filled is all higher than the specific surface of the Pall ring (12) at packing layer (8) place
Long-pending.
Anti-suck type the most according to claim 4 equilibrium gas distribution formula oil-water separation vacuum tank, is characterized in that: work as oil viscosity
Less than 100cst, Pall ring diameter d2 scope is: 12mm < d2 < 25mm；When oil viscosity is more than or equal to 100cst to 200cst, Bao
That ring diameter d2 scope is: 16mm < d2 < 32mm；When oil viscosity is more than 200cst, and Pall ring diameter d2 scope is: 22mm < d2
<50mm。
Anti-suck type the most according to claim 1 equilibrium gas distribution formula oil-water separation vacuum tank, is characterized in that: described is anti-down
Suction strainer basket (10) includes small-bore gusset plate (10-1) being fixed under the shower plate (9) of distribution oil stream and is arranged on side, small-bore
The large aperture base plate (10-2) of coaming plate (10-1) bottom, described gusset plate (10-1) peripheral ring is around at least two-layer gas-liquid separation net
(10-3).
Anti-suck type the most according to claim 1 equilibrium gas distribution formula oil-water separation vacuum tank, is characterized in that: described spray
There is on plate (9) distribution, the spray apertures (9-1) of uniform distribution oil stream in annulus.
Anti-suck type the most according to claim 1 equilibrium gas distribution formula oil-water separation vacuum tank, is characterized in that: described middle interval
Plate (13) is lain directly in by positioning bar in the middle of the packing layer (8) of tank body (1).
Anti-suck type the most according to claim 1 equilibrium gas distribution formula oil-water separation vacuum tank, is characterized in that: described dividing plate
(16) central authorities, gas supplementing opening (4) are arranged over bell jar (14), and dividing plate (16) annulus of bell jar surrounding is provided with oil and flows gentle circulation
The uniform pore openings (15) crossed.
Anti-suck type the most according to claim 1 equilibrium gas distribution formula oil-water separation vacuum tank, is characterized in that: described tank body
(1) lower end is provided with switch (6) and interface of the level gauge (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610439833.7A CN105920880B (en) | 2016-06-20 | 2016-06-20 | Anti-suck type equilibrium gas distribution formula water-oil separating vacuum tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610439833.7A CN105920880B (en) | 2016-06-20 | 2016-06-20 | Anti-suck type equilibrium gas distribution formula water-oil separating vacuum tank |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105920880A true CN105920880A (en) | 2016-09-07 |
| CN105920880B CN105920880B (en) | 2018-05-15 |
Family
ID=56831791
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610439833.7A Active CN105920880B (en) | 2016-06-20 | 2016-06-20 | Anti-suck type equilibrium gas distribution formula water-oil separating vacuum tank |
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|---|---|
| CN (1) | CN105920880B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2233774Y (en) * | 1995-06-23 | 1996-08-28 | 电力工业部电力建设研究所 | High-efficient vacuum distillation pot |
| CN2734301Y (en) * | 2004-09-02 | 2005-10-19 | 重庆渝能滤油机制造有限公司 | Novel vacuum separation chamber of vacuum oil filter |
| CN202822993U (en) * | 2012-10-18 | 2013-03-27 | 昆山威胜达环保设备有限公司 | Vacuum static oil filter |
| KR101520480B1 (en) * | 2014-04-04 | 2015-06-16 | 김상현 | A transformer vacuum oil filter |
-
2016
- 2016-06-20 CN CN201610439833.7A patent/CN105920880B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2233774Y (en) * | 1995-06-23 | 1996-08-28 | 电力工业部电力建设研究所 | High-efficient vacuum distillation pot |
| CN2734301Y (en) * | 2004-09-02 | 2005-10-19 | 重庆渝能滤油机制造有限公司 | Novel vacuum separation chamber of vacuum oil filter |
| CN202822993U (en) * | 2012-10-18 | 2013-03-27 | 昆山威胜达环保设备有限公司 | Vacuum static oil filter |
| KR101520480B1 (en) * | 2014-04-04 | 2015-06-16 | 김상현 | A transformer vacuum oil filter |
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| Publication number | Publication date |
|---|---|
| CN105920880B (en) | 2018-05-15 |
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| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Fei Xiaoming Inventor after: Chun Ming Su Inventor after: Gu Zhipei Inventor after: Deng Zonghua Inventor before: Fei Xiaoming Inventor before: Gu Zhipei Inventor before: Deng Zonghua |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Oil water separation vacuum tank with balanced gas distribution Effective date of registration: 20210705 Granted publication date: 20180515 Pledgee: Bank of China Limited Changzhou Economic Development Zone sub branch Pledgor: CHANGZHOU VIKING FILTRATION & SEPARATION ENVIRONMENTAL TECHNOLOGY Co.,Ltd. Registration number: Y2021980005740 |
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Address after: 213000 No. 3 Xiaming Road, Hengshanqiao Town, Changzhou Economic Development Zone, Jiangsu Province Patentee after: Jiangsu Weiken Purification Technology Co.,Ltd. Address before: 213000 West Village, Hengshan Bridge Town, Wujin District, Changzhou, Jiangsu Patentee before: CHANGZHOU VIKING FILTRATION & SEPARATION ENVIRONMENTAL TECHNOLOGY Co.,Ltd. |
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Date of cancellation: 20220708 Granted publication date: 20180515 Pledgee: Bank of China Limited Changzhou Economic Development Zone sub branch Pledgor: CHANGZHOU VIKING FILTRATION & SEPARATION ENVIRONMENTAL TECHNOLOGY Co.,Ltd. Registration number: Y2021980005740 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
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Denomination of invention: Anti back suction balanced air distribution vacuum tank for oil-water separation Effective date of registration: 20220712 Granted publication date: 20180515 Pledgee: Bank of China Limited Changzhou Economic Development Zone sub branch Pledgor: Jiangsu Weiken Purification Technology Co.,Ltd. Registration number: Y2022980010285 |
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Date of cancellation: 20230718 Granted publication date: 20180515 Pledgee: Bank of China Limited Changzhou Economic Development Zone sub branch Pledgor: Jiangsu Weiken Purification Technology Co.,Ltd. Registration number: Y2022980010285 |
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Denomination of invention: Anti backflow balanced air distribution oil-water separation vacuum tank Effective date of registration: 20230719 Granted publication date: 20180515 Pledgee: Bank of China Limited Changzhou Economic Development Zone sub branch Pledgor: Jiangsu Weiken Purification Technology Co.,Ltd. Registration number: Y2023980049030 |