CN104696554B - Side feeding and top discharging type water seal tank with two-stage water seal function and use method of water seal tank - Google Patents
Side feeding and top discharging type water seal tank with two-stage water seal function and use method of water seal tank Download PDFInfo
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- CN104696554B CN104696554B CN201510073625.5A CN201510073625A CN104696554B CN 104696554 B CN104696554 B CN 104696554B CN 201510073625 A CN201510073625 A CN 201510073625A CN 104696554 B CN104696554 B CN 104696554B
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- tank body
- water seal
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 168
- 238000000034 method Methods 0.000 title claims abstract description 11
- 238000007599 discharging Methods 0.000 title abstract 2
- 239000007789 gas Substances 0.000 claims description 46
- 238000003780 insertion Methods 0.000 claims description 5
- 230000037431 insertion Effects 0.000 claims description 5
- 238000007789 sealing Methods 0.000 claims description 5
- 238000009423 ventilation Methods 0.000 claims description 4
- 239000007788 liquid Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 4
- 230000035515 penetration Effects 0.000 abstract 2
- 239000012071 phase Substances 0.000 description 12
- 238000013461 design Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 230000007096 poisonous effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000001172 regenerating effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000012808 vapor phase Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K13/00—Other constructional types of cut-off apparatus; Arrangements for cutting-off
- F16K13/08—Arrangements for cutting-off not used
- F16K13/10—Arrangements for cutting-off not used by means of liquid or granular medium
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Float Valves (AREA)
- Hydraulic Turbines (AREA)
Abstract
The invention relates to a side feeding and top discharging type water seal tank with a two-stage water seal function and a use method of the water seal tank. The water seal tank comprises an air inlet pipe, an upper inner barrel, a barrel-shaped tank body, an outlet, an overflow hole, a water inlet, a lower inner barrel, a primary water seal outer barrel, a primary water seal plate and a water inlet/outlet, wherein the outlet is formed in an upper end of the barrel-shaped tank body; the air inlet pipe is positioned in the middle of a side surface of the barrel-shaped tank body; the upper inner barrel is positioned at an upper part in the barrel-shaped tank body; the lower inner barrel is positioned at a lower part in the barrel-shaped tank body; the air inlet pipe is connected with an upper end of the lower inner barrel in a penetration manner and connected with a lower end of the upper inner barrel in a penetration manner; the primary water seal outer barrel is arranged outside the upper inner barrel; the primary water seal plate is n-shape; the water inlet is arranged on a side surface of the upper end of the barrel-shaped tank body; the water inlet/outlet is formed in the bottom of the barrel-shaped tank body; the overflow hole is formed in the side surface of the barrel-shaped tank body below the air inlet pipe. The technical scheme provided by the invention enables the water seal tank to be small in pressure drop, low in operation cost and tighter and more reliable in seal effect.
Description
Technical field
The invention belongs to petrochemical industry low pressure drop gas phase media water-sealed tank technical field, relate generally to a kind of two grades of water seals
Upper outlet type water sealed tank and its using method are entered in side.
Background technology
At present, gas phase media big flow, big runner (pipe diameter ＞ 2m) conveying in petrochemical industry flue system
When, following pipeline cut-out technical method: 1, large-scale stop valve is usually taken.But large-scale stop valve exist manufacture and design difficulty,
The technical problem such as high temperature deformation bite is not easy to operate, domestic not yet Related product, needs import, thus expensive.2、
Large-scale regulating butterfly valve.Major diameter butterfly valve haves such problems as expensive, poorly sealed, yielding leakage of being heated, so only permitting
Permitted the occasion of a small amount of leakage of gas phase media or applied in the case of processing as emergency episode cut-out；If tighter to seal request
Occasion, is both needed to be aided with the cut-out measure of other good seals.3rd, traditional water sealed tank.Water sealed tank is cut-out means more common at present,
There is easy manufacture, low cost, good seal, do not leak, but traditional water sealed tank must be by the low-pressure vapor phase pipeline of major diameter
90 ° of arranged crosswise, and make gas phase media when conveying normal through it, carry out enlarging deceleration, dilatation, 180 ° of steerings, neckings
The processes such as acceleration, cause gas phase media (to calculate and measured result about pressure drop increases normal through pressure loss during water sealed tank is big
5-8kpa), thus directly influencing the input of conveying power or the energy regenerating output of gas phase media, increased energy ezpenditure.For
The new water sealed tank of this exploitation has realistic meaning.
The defect existing in view of above-mentioned existing water sealed tank, the present inventor is based on and is engaged in such product design manufacture for many years
Abundant practical experience and professional knowledge, and coordinate the utilization of scientific principle, actively research and innovation in addition, a kind of new to founding
Upper outlet type water sealed tank is entered in the side of two grades of water seals, can improve typically existing water sealed tank so as to have more practicality.Through continuous
Research, design, and through repeatedly study sample and improve after, finally create the present invention having practical value.
Content of the invention
It is an object of the invention to, overcome the defect that existing water sealed tank exists, and propose a kind of side of two grades of water seals and enter
Upper outlet type water sealed tank, this water sealed tank sealing tighter, more reliable on the basis of, reduce water sealed tank pressure drop, reduce run
Cost.
The object of the invention to solve the technical problems employs the following technical solutions to realize.Propose according to the present invention
A kind of side of two grades of water seals enter upper outlet type water sealed tank, wherein said water sealed tank includes: air inlet pipe (1), upper inner core (2), cylinder
Shape tank body (3), outlet (4), overfall (5), water inlet (6), lower inner core (7), one-level water seal outer tube (8), one-level water seal shrouding
(9), intake-outlet (10)；Outlet (4) is arranged at the upper end of circle tube tank body (3), and air inlet pipe (1) is located at circle tube tank body (3)
Side in the middle part of, upper inner core (2) be located at circle tube tank body (3) in top, lower inner core (7) be located at circle tube tank body (3) in
Bottom, and air inlet pipe (1) is connected with the upper end insertion of lower inner core (7), air inlet pipe (1) is connected with upper inner core (2) lower end insertion simultaneously,
It is provided with one-level water seal outer tube (8) outside upper inner core (2), and one-level water seal shrouding (9) is arranged at inner core (2) and one in π type
Between level water seal outer tube (8), formed between wherein said upper inner core (2), one-level water seal outer tube (8) and one-level water seal shrouding (9)
One-level water sealed tank (a), forms two grades of water sealed tanks (b), wherein between the bottom of lower inner core (7) and circle tube tank body (3) and sidepiece
Described outlet (4), the central axes of upper inner core (2), the central axis of lower inner core (7) and circle tube tank body (3), water inlet
(6) it is arranged at circle tube tank body (3) upper side, intake-outlet (10) is arranged at circle tube tank body (3) bottom, and overfall
(5) it is arranged on circle tube tank body (3) side below air inlet pipe (1).
The object of the invention to solve the technical problems also can be applied to the following technical measures to achieve further.
Upper outlet type water sealed tank is entered in the side of aforesaid two grades of water seals, wherein descends diameter≤one-level water seal outer tube (8) of inner core (7)
Diameter.
Upper outlet type water sealed tank is entered in the side of aforesaid two grades of water seals, and the wherein diameter d1 of air inlet pipe (1) is more than lower inner core (7)
Diameter d2, and d2/d1=0.6～0.99.
Upper outlet type water sealed tank, wherein d2/d1=0.7～0.9 are entered in the side of aforesaid two grades of water seals.
Upper outlet type water sealed tank, wherein d2/d1=0.8 are entered in the side of aforesaid two grades of water seals.
Upper outlet type water sealed tank is entered in the side of aforesaid two grades of water seals, by one-level water sealed tank (a) during wherein said water sealed tank work
Form two grades of water seals with two grades of water sealed tanks (b)；Form two runners, described two runners are one-level during described water sealed tank ventilation body
Runner (i) and secondary streams road (ii).
The object of the invention to solve the technical problems also employs the following technical solutions to realize.According to proposed by the present invention
The using method of upper outlet type water sealed tank is entered in a kind of side of two grades of water seals, and it comprises the following steps:
A (), when needing to block gas, is opened water inlet (6) and intake-outlet (10) is started to intake, because of air inlet pipe (1)
Gas pressure intensity is high, and the gas pressure of outlet (4) is low, acts on the pressure differential of the gas of outlet (4) in the gas of air inlet pipe (1)
Under, when the water of water inlet (6) and intake-outlet (10) the described water sealed tank of entrance reaches balance liquid level, described gas is truncated,
One-level water sealed tank (a) and two grades of water sealed tanks (b) all realize described gas is effectively sealed, and close intake-outlet (10)；
B (), when needing to connect gas, is first closed water inlet (6), is opened intake-outlet (10) and discharge water away, be truncated
Gas shunts after air inlet pipe (1) entrance, and described gas separately flows into inner core (2) and lower inner core (7), inner core (2) in inflow
Described gas again pass through one-level water seal shrouding (9) and one-level water seal outer tube (8), form one-level runner (i), and flow into lower inner core
(7) described gas is past upper from circle tube tank body (3) bottom again, forms secondary streams road (ii)；Through above-mentioned one-level runner (i)
Leave circle tube tank body (3) and flow into outlet (4) with two strands of gases of secondary streams road (ii), finally flow out described water sealed tank.
By technique scheme, the present invention at least has following advantages and a beneficial effect:
1st, pressure drop is little, and operating cost is low.
The present invention breaches the structure of traditional water sealed tank, and the design of its two grades double sealing structure for water and outlet makes gas phase flowing ratio
Smoothly, the pressure loss is little, reduces operating cost.Through numerical computations and blowing experiment, water sealed tank pressure drop only 300pa about,
It is about the 1/8～1/10 of traditional water sealed tank, energy-saving effect is very notable.
2nd, seal tightly.
More other sealing valves, butterfly valve seal are tighter, more reliable.Adapt to different gas phase medias, such as poisonous, inflammable
In medium.
Described above is only the general introduction of technical solution of the present invention, in order to better understand the technological means of the present invention,
And can be practiced according to the content of specification, and in order to allow the above and other objects, features and advantages of the present invention can
Become apparent, below especially exemplified by preferred embodiment, and coordinate accompanying drawing, describe in detail as follows.
Brief description
Fig. 1 is the structural representation that a kind of side of two grades of water seals of the present invention enters during the ventilation of upper outlet type water sealed tank.
Fig. 2 is that structural representation during upper outlet type water sealed tank water seal is entered in a kind of side of two grades of water seals of the present invention.
[main element symbol description]
1: air inlet pipe 2: upper inner core
3: circle tube tank body 4: outlet
5: overfall 6: water inlet
7: lower inner core 8: one-level water seal outer tube,
9: one-level water seal shrouding 10: intake-outlet
B: two grades of water sealed tanks of a: one-level water sealed tank
I: one-level runner ii: secondary streams road
Specific embodiment
For further illustrating that the present invention is to reach technological means and effect that predetermined goal of the invention is taken, below in conjunction with
Accompanying drawing and preferred embodiment, enter its specific embodiment party of upper outlet type water sealed tank to according to a kind of side of two grades of water seals proposed by the present invention
Formula, structure, feature, using method and its effect, after describing in detail such as.
The present invention enters upper outlet type water sealed tank in a kind of side of two grades of water seals and its technical scheme of using method is: a kind of two grades
Water sealed tank, has a circle tube tank body 3, and described circle tube tank body 3 has air inlet pipe 1, outlet 4, intake-outlet 10 and overfall
5；Air inlet pipe 1 is connected with upper inner core 2 and the insertion of lower inner core 7 after side enters circle tube tank body 3 respectively, outside upper inner core 2
Face is one-level water sealed tank a, and one-level water sealed tank a is made up of upper inner core 2 side and one-level water seal outer tube 8 and one-level water seal shrouding 9；Under
Inner core 7 forms two grades of water sealed tank b with the bottom of cylinder type tank body 3 and sidepiece；Air inlet pipe 1, upper inner core 2, the central shaft of lower inner core 7
Line and the central axes of circle tube tank body 3；Intake-outlet 10 is arranged on circle tube tank body 3 bottom；Overfall 5 is then arranged on
Below air inlet.
Fig. 1 is the structural representation that a kind of side of two grades of water seals of the present invention enters during the ventilation of upper outlet type water sealed tank.Fig. 2 is this
Structural representation during upper outlet type water sealed tank water seal is entered in a kind of side of bright two grades of water seals.
As shown in figure 1, upper outlet type water sealed tank is entered in a kind of side of two grades of water seals, there is a circle tube tank body 3, described cylindrical shape
Air inlet pipe 1, outlet 4, water inlet 6 and overfall 5 are had on tank body 3.Air inlet pipe 1 stretch into after circle tube tank body 3 with upper inner core 2 and
Lower inner core 7 connects, the one-level that a gas part is formed between upper inner core 2, one-level water seal shrouding 9 and one-level water seal outer tube 8
Runner i flows out at outlet 4.Another part gas then enters lower inner core 7 formation between lower inner core 7, circle tube tank body 3
Secondary streams road ii flows out at outlet 4；Two strands of gases of one-level runner i and secondary streams road ii are after outlet 4 converges from outlet 4 stream
Go out, leave described water sealed tank.Intake-outlet 10 is arranged on circle tube tank body 3 bottom；Overfall 5 is located at below outlet 4.
In air inlet, gas is shunted after air inlet pipe 1, and a part of gas flows out through one-level runner i, fully
Make use of the upper space of described water sealed tank so that the diameter of lower inner core 7 can reduce；Diameter due to lower inner core 7 reduces, and makes
Gap between circle tube tank body 3 and lower inner core 7 is corresponding increases, between circle tube tank body 3 and lower inner core 7 two grades of gas
During runner ii flowing, flow velocity reduces, and resistance reduces, and pressure drop reduces；The wherein diameter d1 of the air inlet pipe 1 and diameter d2 of lower inner core 7
Ratio exist a preferred proportion, i.e. d2/d1=0.6～0.99.Wherein it is preferably in a proportion of d2/d1=0.7～0.9, and optimal
Ratio is d2/d1=0.8.When giving vent to anger, gas leaves circle tube tank body 3, flows into outlet 4, after converging through outlet 4, flows out institute
State water sealed tank.
When needing to block the gas phase media in described water sealed tank, open water inlet 6 and intake-outlet 10, start to intake,
Because the gaseous pressure of described water sealed tank air inlet side is high, lateral pressure of giving vent to anger is low, and described air inlet side and described side of giving vent to anger have pressure differential,
Under gas phase differential pressure action, when the water of the described water sealed tank of entrance reaches balance liquid level, one-level water sealed tank a and two grades of water sealed tank b is equal
Realize effectively sealing, as shown in Figure 2.When needing to open gas phase pipeline, open intake-outlet 10, the water in water sealed tank is from entering
Delivery port 10 flows out, and now gas phase media enters from the air inlet pipe 1 of described water sealed tank, through one-level runner i and secondary streams road ii
From outlet 4 outflow, the gas piping passage in described water sealed tank is opened, as shown in Figure 1.
The above, be only presently preferred embodiments of the present invention, not the present invention is done with any pro forma restriction, though
So the present invention is disclosed above with preferred embodiment, but is not limited to the present invention, any is familiar with this professional technology people
Member, in the range of without departing from technical solution of the present invention, when the technology contents of available the disclosure above make a little change or modification
For the Equivalent embodiments of equivalent variations, as long as being the content without departing from technical solution of the present invention, the technical spirit of the foundation present invention
To any simple modification made for any of the above embodiments, equivalent variations and modification, all still fall within the range of technical solution of the present invention.
Claims (7)
1. upper outlet type water sealed tank is entered it is characterised in that described water sealed tank includes in a kind of side of two grades of water seals:
Air inlet pipe (1), upper inner core (2), circle tube tank body (3), outlet (4), overfall (5), water inlet (6), lower inner core (7),
One-level water seal outer tube (8), one-level water seal shrouding (9), intake-outlet (10)；
Outlet (4) is arranged at the upper end of circle tube tank body (3), and air inlet pipe (1) is located in the middle part of the side of circle tube tank body (3), on
The top that inner core (2) is located in circle tube tank body (3), the bottom that lower inner core (7) is located in circle tube tank body (3), and air inlet pipe
(1) it is connected with the upper end insertion of lower inner core (7), air inlet pipe (1) is connected with upper inner core (2) lower end insertion simultaneously, in upper inner core (2) outward
It is provided with one-level water seal outer tube (8), and one-level water seal shrouding (9) is arranged at inner core (2) and one-level water seal outer tube (8) in π type
Between, form one-level water sealed tank (a) between wherein said upper inner core (2), one-level water seal outer tube (8) and one-level water seal shrouding (9),
Between the bottom of lower inner core (7) and circle tube tank body (3) and sidepiece formed two grades of water sealed tanks (b), wherein said outlet (4), on
The central axes of inner core (2), the central axis of lower inner core (7) and circle tube tank body (3), water inlet (6) is arranged at cylinder
Shape tank body (3) upper side, intake-outlet (10) is arranged at circle tube tank body (3) bottom, and overfall (5) is arranged at air inlet pipe
(1) on circle tube tank body (3) side below.
2. the side of two grades of water seals according to claim 1 enter upper outlet type water sealed tank it is characterised in that: lower inner core (7) straight
The diameter of footpath≤one-level water seal outer tube (8).
3. the side of two grades of water seals according to claim 1 enter upper outlet type water sealed tank it is characterised in that: air inlet pipe (1) straight
Footpath d1 is more than the diameter d2 of lower inner core (7), and d2/d1=0.6～0.99.
4. the side of two grades of water seals according to claim 3 enter upper outlet type water sealed tank it is characterised in that: d2/d1=0.7～
0.9.
5. the side of two grades of water seals according to claim 4 enter upper outlet type water sealed tank it is characterised in that: d2/d1=0.8.
6. the side of two grades of water seals according to claim 1 enter upper outlet type water sealed tank it is characterised in that: the work of described water sealed tank
When form two grades of water seals by one-level water sealed tank (a) and two grades of water sealed tanks (b)；Form two runners during described water sealed tank ventilation body,
Described two runners are one-level runner (i) and secondary streams road (ii).
7. the use of upper outlet type water sealed tank is entered in a kind of side of two grades of water seals as described in any claim in claim 1 to 6
Method is it is characterised in that comprise the following steps:
A (), when needing to block gas, is opened water inlet (6) and intake-outlet (10) is started to intake, because of the gas of air inlet pipe (1)
Pressure is high, and the gas pressure of outlet (4) is low, under the gas of air inlet pipe (1) is acted on the pressure differential of the gas of outlet (4), from
When the water of water inlet (6) and intake-outlet (10) the described water sealed tank of entrance reaches balance liquid level, described gas is truncated, one-level water
Sealing groove (a) and two grades of water sealed tanks (b) all realize described gas is effectively sealed, and close intake-outlet (10)；
B (), when needing to connect gas, is first closed water inlet (6), is opened intake-outlet (10) and discharge water away, the gas being truncated
Shunt after entering through air inlet pipe (1), described gas separately flows into inner core (2) and lower inner core (7), the institute of inner core (2) in inflow
State gas and again pass through one-level water seal shrouding (9) and one-level water seal outer tube (8), form one-level runner (i), and flow into lower inner core (7)
Described gas again from circle tube tank body (3) bottom toward upper, form secondary streams road (ii)；Through above-mentioned one-level runner (i) and
Two strands of gases in secondary streams road (ii) leave circle tube tank body (3) and flow into outlet (4), finally flow out described water sealed tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510073625.5A CN104696554B (en) | 2015-02-10 | 2015-02-10 | Side feeding and top discharging type water seal tank with two-stage water seal function and use method of water seal tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510073625.5A CN104696554B (en) | 2015-02-10 | 2015-02-10 | Side feeding and top discharging type water seal tank with two-stage water seal function and use method of water seal tank |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104696554A CN104696554A (en) | 2015-06-10 |
| CN104696554B true CN104696554B (en) | 2017-01-18 |
Family
ID=53343963
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510073625.5A Active CN104696554B (en) | 2015-02-10 | 2015-02-10 | Side feeding and top discharging type water seal tank with two-stage water seal function and use method of water seal tank |
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| Country | Link |
|---|---|
| CN (1) | CN104696554B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2161905A (en) * | 1984-07-20 | 1986-01-22 | Airoil Flaregas Ltd | Improvements in sealing devices for use in gas disposal or recovery systems |
| CN2568923Y (en) * | 2002-06-20 | 2003-08-27 | 湖北金港化学科技有限公司 | Explosion-proof water-tight can |
| CN2730762Y (en) * | 2004-07-15 | 2005-10-05 | 崔雪艳 | Water tight tank |
| CN203641589U (en) * | 2013-07-30 | 2014-06-11 | 青岛京润石化工程有限公司 | Combined-type energy-saving water-sealed valve |
| CN204493803U (en) * | 2015-02-10 | 2015-07-22 | 洛阳明远石化技术有限公司 | Upper outlet type water sealed tank is entered in a kind of side of secondary water seal |
-
2015
- 2015-02-10 CN CN201510073625.5A patent/CN104696554B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2161905A (en) * | 1984-07-20 | 1986-01-22 | Airoil Flaregas Ltd | Improvements in sealing devices for use in gas disposal or recovery systems |
| CN2568923Y (en) * | 2002-06-20 | 2003-08-27 | 湖北金港化学科技有限公司 | Explosion-proof water-tight can |
| CN2730762Y (en) * | 2004-07-15 | 2005-10-05 | 崔雪艳 | Water tight tank |
| CN203641589U (en) * | 2013-07-30 | 2014-06-11 | 青岛京润石化工程有限公司 | Combined-type energy-saving water-sealed valve |
| CN204493803U (en) * | 2015-02-10 | 2015-07-22 | 洛阳明远石化技术有限公司 | Upper outlet type water sealed tank is entered in a kind of side of secondary water seal |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104696554A (en) | 2015-06-10 |
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Effective date of registration: 20200320 Address after: 471003 1302, floor 3, building 1, yinkun Science Park, No. 6, Fenghua Road, high tech Development Zone, Luoyang City, Henan Province Co-patentee after: LUOYANG RUICHANG ENVIRONMENTAL ENGINEERING Co.,Ltd. Patentee after: LUOYANG MINGYUAN PETROCHEMICAL INDUSTRY TECHNOLOGY Co.,Ltd. Address before: 471003 1302, floor 3, building 1, yinkun Science Park, No. 6, Fenghua Road, Luoyang high tech Development Zone, Luoyang City, Henan Province Patentee before: LUOYANG MINGYUAN PETROCHEMICAL INDUSTRY TECHNOLOGY Co.,Ltd. |
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Effective date of registration: 20220302 Address after: 471000 No.8, Yanguang Road, Luoyang high tech Industrial Development Zone, Luoyang Free Trade Zone, Henan Province Patentee after: LUOYANG RUICHANG ENVIRONMENTAL ENGINEERING Co.,Ltd. Address before: 471003 three, 1302, 1 / F, Yin Kun science and Technology Park, 6 Fenghua Road, hi tech Development Zone, Luoyang, Henan. Patentee before: LUOYANG MINGYUAN PETROCHEMICAL INDUSTRY TECHNOLOGY Co.,Ltd. Patentee before: Luoyang Ruichang Environmental Engineering Co., Ltd |