CN206089113U - Continuous type profit segregation device - Google Patents
Continuous type profit segregation device Download PDFInfo
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- CN206089113U CN206089113U CN201620471716.4U CN201620471716U CN206089113U CN 206089113 U CN206089113 U CN 206089113U CN 201620471716 U CN201620471716 U CN 201620471716U CN 206089113 U CN206089113 U CN 206089113U
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- oil
- water
- oil slick
- strike
- slick
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Abstract
The utility model discloses a continuous type profit segregation device, its include the strike the oil unit with the segregation unit, the pipeline and segregation unit intercommunication of strike the oil unit through having the pump body, the segregation unit is including the segregation groove, the segregation inslot sets up inlet, buffers, water oil separating district and recirculation region. Profit segregation device during operation, the strike the oil unit is fixed at the liquid level of oily waste liquor, and the oil slick that contains a small amount of solution gets into the strike the oil unit and is imported the segregation groove, and after handling, more net oil is separated to be collected to the oil groove, and the waste liquid of isolating then flows back and continues to use in former tank liquor. The utility model discloses simple structure compactness, low cost, energy -concerving and environment -protective can last and remove the oil processing all kinds of oil slick waters that contain, and process flow is simple and direct, and it is higher just to retrieve oil slick purity. Additionally, the utility model discloses need not any electrification control, the steady running is just not fragile for a long time, can be by wide application in fields such as environmental protection, chemical industry medicine, metal smelting and machinery.
Description
Technical field
The utility model is related to a kind of continous way profit separating device, belongs to mechanical field.
Background technology
Water-oil separating in wastewater treatment is important separation circuit, is widely used in the productive lifes such as food, life and industry
During, the recovery of such as spilled oil on water surface separates again, the water-oil separating of modern petroleum recovery process Crude Oil, engine fuel oil
Filter, and the recovery of industrial lubricant etc..At present, common oil water separator mainly uses the difference of profit density by weight
There is low high energy consumption, treating capacity, inconvenient operation or separate the defect such as not thorough in power, centrifugal force etc. carrying out water-oil separating.
Therefore it is significant for the research of energy-saving and environmental protection, efficient, low cost and the oil water separator that can be worked continuously.
At present, in chemical industry, oil, metal smelt or machining technology field, a large amount of oily waste waters can be often produced, this
Class waste water needs just to be discharged Jing after oil removal treatment, will otherwise cause Heavy environmental pollution and the wasting of resources.Existing deoiling method
Mainly adsorption treatment is carried out to oily waste water or using materials such as dialysis membranes to oily waste water using the strong sorbing material such as activated carbon
Water carries out dialysis treatment, but former mode because of the limited sorption capacity of sorbing material, it is therefore desirable to regularly replace sorbing material,
Can so cause decontamination relatively costly, and deoiling effect is general, and the dialysis membrane price that latter approach is adopted is high, and apply
Scope is narrower, and the sewage higher for strong acid and strong base sewage or salt concentration is not applied to.For this purpose, people are also developed such as bulletin
Number for the oily-water seperating equipment that CN2832797, publication date are a kind of removal oil slick that on November 1st, 2006 proposes, the device is used
Baffle plate splits zones of different, and forces oil slick orientation to float with deflector, flows out from collecting pipe, so as to realize sewage in oil slick
Remove, and can on-line continuous work.But during the device busy, need to make sewage water body all pass through, just oil slick can be carried out
Separate, it is unsuitable for processing the sewage water body produced by large-scale industrial production or the water body with vast waters,
And huge energy consumption, meanwhile, gained oil slick still contains compared with juicy Jing after the device is processed, and needs just recyclable after further treatment making
With.If in addition, when processing liquid of chemical reaction containing oil slick with severe corrosive etc. with the device, device integrally is subject to invade
Erosion, so as to shorten its service life.
Utility model content
The purpose of this utility model is to propose a kind of simple structure, and energy-conserving and environment-protective can be to large area waters containing oil slick, work
A large amount of waste water containing oil slick or carry out lasting oil removal treatment with severe corrosive oil-containing chemical industry solutions that industry metaplasia product is generated, and can
The continous way profit separating device of the higher oil slick of purity is reclaimed, to overcome deficiency of the prior art.
To realize aforementioned utility model purpose, the technical solution adopted in the utility model includes：
A kind of continous way profit separating device, it include being arranged on the strike the oil unit of the ullage of water body containing oil slick and with draw
The isolation unit of oily unit connection, the isolation unit includes being provided with the isolation groove of inlet and recirculating zone, and in isolation groove
Buffering area and water-oil separating area are sequentially provided with from inlet to recirculating zone direction, the strike the oil unit includes that disposable box, lower end cover
The floating spill case that is located in disposable box and floats on the liquid level of water body containing oil slick and through floating spill case and disposable box
Dip-tube, the dip-tube and disposable box are vertically provided with a plurality of strike the oil holes with the corresponding position of dip-tube, described to draw
Pipe upper end is connected by the pipeline with the pump housing with the inlet of isolation unit, and the lower end of the dip-tube is further opened with backflow
Hole.
Among some embodiments, the buffering area is mainly by least one cushioning fender being vertically arranged and isolation groove groove
Wall corral is formed, and the upper end of the cushioning fender is higher by the liquid levels in buffering area and water-oil separating area, the cushioning fender
Lower end with isolation groove bottom land interval setting.
Among some embodiments, the water-oil separating area is mainly anti-by least two pieces be oppositely arranged vertical plate and frames
The cell wall corral of osmotic component and isolation groove is formed, and in the water-oil separating area oil-water separating net is provided with, and water-oil separating is online
End is provided with automatic oil skimming and overflow layer, wherein, near the plate and frame ro components upper end of buffering area and automatic oil skimming and overflow
Layer connection, lower end and isolation groove bottom land interval setting, side and automatic oil skimming and the overflow layer of another plate and frame ro components
Connection, and the plate and frame ro components upper end is higher by automatic oil skimming and overflow layer, lower end and isolation groove bottom land interval setting.
Among some more specific embodiment, automatic oil skimming and overflow floor are by automatic in the water-oil separating area
Overflow pipe is connected with oil groove, and/or the plate and frame ro components are porous plate.
Among some embodiments, the recirculating zone is mainly by least one overflow baffle being vertically arranged and isolation groove
Cell wall corral is formed, and the upper end of the overflow baffle is concordant with the liquid level in buffering area and water-oil separating area to be arranged, the overflow
The lower end of baffle plate is tightly connected with isolation groove bottom land, and the return duct with fluid connection in recirculating zone is additionally provided with the recirculating zone.
Among some embodiments, the isolation groove cell wall bottom of the water-oil separating area and recirculating zone is respectively provided with least
One leakage fluid dram, the leakage fluid dram is connected by the pipeline with balanced flow control valve with water body containing oil slick.
Among some embodiments, the inlet is arranged on isolation groove cell wall top, and the liquid level in buffering area
Top.
Among some embodiments, the strike the oil hole is arranged on dip-tube bottom, and it is symmetrically set around drawing tube wall
Put, and vertically at least arrange two rows, dip-tube lower end is provided with equilibrium reflux lid, and return port is opened up on lid.
Among some embodiments, the upper end peripheral region of the floating spill case offers the oil slick of long circular shape
Entrance, the oil slick porch is provided with the ball-cock assembly that can coordinate with oil slick entrance, when oil slick entrance bottom is in water body containing oil slick
When between the upper and lower end face of middle oil slick layer, ball-cock assembly is separately positioned with oil slick entrance, makes oil slick flow into floating spill case, when containing floating
When the lower surface of oil slick layer is higher than oil slick entrance bottom in profit body, ball-cock assembly is arranged in oil slick entrance, enters floating to block
The liquid stream of dynamic spill case.
Among some embodiments, be additionally provided with the profit separating device can on vertical direction activity strike the oil list
First support, and/or the pump housing is at least selected from pneumatic diaphragm pump.
The profit separating device to form continous way is combined using strike the oil unit and isolation unit in the utility model, so as to can
First to draw the oil slick layer containing oil slick water surface, then the oil slick layer to drawing gained is gone carry out the side for isolating purification process again
Formula, realizes oil slick process and the recovery of oils resource in water body containing oil slick.This mode than in prior art to whole
Water body containing oil slick is compared in the way of being processed to carry out oil removing, not only efficient quick, and energy-conserving and environment-protective, meanwhile, reclaimed
Oils resource is more pure, even can simplify save follow-up water removal operation, in addition, which can also to small-scale waste water water body,
Waste reaction solution containing oil slick as produced by Chemical Engineering Laboratory is processed.It is to be particularly noted that there is relatively strong corruption processing
During the chemical industry solutions containing oil slick of corrosion, only have strike the oil unit in the utility model in solution, and isolate unit and then arrange
Outside solution, can avoid being corroded.Even so, even if the oil slick layer that draws of Jing strike the oil units is containing a small amount of solution, its
Into after isolation unit, the corrosion caused to equipment is also far weaker than in prior art oily-water seperating equipment because mass-impregnation is in solution
In and corroding of being subjected to, therefore, than existing oily-water seperating equipment, the continous way oily-water seperating equipment in the utility model is also
With more permanent service life.Also, strike the oil unit only has a small amount of component composition, and small volume, structure in the utility model
Simply, if all preparing using anticorrosive property material, the increase of cost is not also resulted in.
The operation principle of the continous way profit separating device is：Strike the oil unit is arranged and is fixed on water body containing oil slick
In, the height of strike the oil unit is adjusted, make the oil slick entrance on floating spill case tangent with oil slick layer liquid level, make oil slick layer（Containing few
Amount water）Into floating spill case, and accumulate in disposable box, when oil slick liquid level reach a certain height in disposable box, Shao Liangshui
The strike the oil mouth of its lowest position is back to water body containing oil slick on Jing dip-tubes, and oil slick then drawing at higher position on Jing dip-tubes
The pipeline with the pump housing of hydraulic fluid port and connection dip-tube and isolation unit transports to the inlet of isolation groove, and hence into isolation groove
Buffering area, then enters water-oil separating area by the bottom of buffering area, and Jing after oil-water separating net process, purer oil reservoir swims in
On the liquid level in water-oil separating area, and after the automatic oil skimmings of Jing and overflow layer and automatic overflow pipe transport to oil groove, and a small amount of water then collects
In below water-oil separating area liquid level, then overflow is input into again in water body containing oil slick to recirculating zone by reflux line, so as to
Complete the removal work of oil slick.
Compared with prior art, the beneficial effects of the utility model are：The continous way profit separating device simple structure,
Small volume, with low cost, energy-conserving and environment-protective, can be generated to small-sized solution containing oil slick, large area waters containing oil slick, industrialized production
A large amount of waste water containing oil slick or carry out lasting oil removal treatment with compared with severe corrosive oil-containing chemical industry solutions, technological process is simple and direct, work
Make stable performance, and skimming purity is higher, can simplify follow-up processing flow, in addition, the continous way profit separating device without
Any electrified control is needed, can be worked independently, and can be dallied for a long time, and there is no any loss and damage to machine.This reality
It is widely used in the fields such as chemical industry, biology, pharmacy, metal smelt, petrochemical industry, machine-building and environmental protection with new.
Description of the drawings
Fig. 1 is a kind of fundamental diagram of continous way profit separating device of the utility model；
Description of reference numerals：1-refluxing opening, 2-disposable box, 3-floating spill case, 4-strike the oil hole, 5-oil slick entrance,
6-dip-tube, 7-inlet, 8-cushioning fender, 9-Buffer Pool, 10-oil-water separating net, 11-oil skimming and overflow automatically
Layer, 12-porous plate, 13-overflow baffle, 14-return duct, 15-balanced flow control valve, 16-feeder, 17-gas
Dynamic membrane pump, oil-bearing layer in 18-strike the oil unit, liquid levels in 19-isolation unit, liquid levels in 20-strike the oil unit,
Oil-bearing layer in 21-isolation unit, 22-fixed plate.
Specific embodiment
In view of deficiency of the prior art, inventor Jing studies for a long period of time and puts into practice in a large number, is able to propose this practicality newly
The technical scheme of type.Accompanying drawing and some embodiments will be combined as follows to make into one the technical scheme, its implementation process and principle etc.
The explanation of step.
A kind of continous way profit separating device, it include being arranged on the strike the oil unit of the ullage of water body containing oil slick and with draw
The isolation unit of oily unit connection, the isolation unit includes being provided with the isolation groove of inlet 7 and recirculating zone, and in isolation groove
Buffering area and water-oil separating area are sequentially provided with from inlet 7 to recirculating zone direction, the strike the oil unit includes disposable box 2, lower end
The floating spill case 3 that is set in disposable box 2 and floats on the liquid level of water body containing oil slick and through floating spill case 3 and receive
The dip-tube 6 of collection box 2, the dip-tube 6 and disposable box 2 are vertically provided with a plurality of strike the oils with the corresponding position of dip-tube 6
Hole 4, the upper end of the dip-tube 6 is connected by the pipeline with the pump housing with the inlet 7 of isolation unit, under the dip-tube 6
End is further opened with return port.
Wherein, the buffering area is mainly formed by least one cushioning fender 8 being vertically arranged with isolation groove cell wall corral, institute
State the liquid levels that the upper end of cushioning fender 8 is higher by buffering area and water-oil separating area, lower end and the isolation of the cushioning fender 8
Groove bottom land interval setting.
Wherein, the water-oil separating area is mainly by least two pieces be oppositely arranged vertical plate and frame ro components and isolation
The cell wall corral of groove is formed, and oil-water separating net 10 is provided with the water-oil separating area, and the upper end of oil-water separating net 10 is provided with automatically
Oil skimming and overflow layer 11, wherein, the plate and frame ro components upper end near buffering area is connected with automatic oil skimming and overflow layer 11,
Lower end is connected with isolation groove bottom land interval setting, the side of another plate and frame ro components with automatic oil skimming and overflow layer 11,
And the plate and frame ro components upper end is higher by automatic oil skimming and overflow layer 11, lower end and isolation groove bottom land interval setting.
Further, automatic oil skimming and overflow floor 11 are connected by automatic overflow pipe with oil groove in the water-oil separating area,
And/or the plate and frame ro components are porous plate 12.
Wherein, the recirculating zone is mainly by least one overflow baffle 13 being vertically arranged and the cell wall corral shape for isolating groove
Into the upper end of the overflow baffle 13 is concordant with the liquid level in buffering area and water-oil separating area to be arranged, the overflow baffle 13
Lower end is tightly connected with isolation groove bottom land, and the return duct 14 with fluid connection in recirculating zone is additionally provided with the recirculating zone.
Preferably, the isolation groove cell wall bottom of the water-oil separating area and recirculating zone is respectively provided with an at least leakage fluid dram, should
Leakage fluid dram is connected by the pipeline with balanced flow control valve 15 with water body containing oil slick.
Below in conjunction with the accompanying drawings the utility model is described in detail with specific embodiment.
A kind of continous way profit separating device, including strike the oil unit and isolation unit, strike the oil unit is arranged on water containing oil slick
On the liquid level of body, and can skimming layer, strike the oil unit by with the pump housing pipeline with isolate unit connect, its feature exists
In the isolation unit includes isolation groove, and isolation groove one end top arranges inlet 7, and the other end arranges recirculating zone, isolates groove
It is interior to set gradually buffering area and water-oil separating area by by the direction of inlet 7 to recirculating zone；
Wherein, buffering area is mainly formed by least one cushioning fender 8 being vertically arranged with the cell wall corral of isolation groove, is buffered
The upper end of baffle plate 8 be higher by buffering area and water-oil separating area in liquid level, lower end with isolation groove bottom land interval setting；
Water-oil separating area is mainly by least two pieces be oppositely arranged vertical plate and frame ro components and the cell wall of isolation groove
Corral is formed, and oil-water separating net 10 is arranged in water-oil separating area, and the upper end of oil-water separating net 10 arranges automatic oil skimming and overflow layer 11,
A plate and frame ro components upper end near buffering area is connected with automatic oil skimming and overflow layer 11, between lower end and isolation groove bottom land
Every setting, another plate and frame ro components one side is connected with automatic oil skimming and overflow layer 11, and its upper end is higher by automatic oil skimming
And overflow layer 11, lower end and isolation groove bottom land interval setting；
Recirculating zone is mainly formed by least one overflow baffle 13 being vertically arranged with the cell wall corral of isolation groove, overflow baffle
13 upper ends are concordant with the liquid level in buffering area and water-oil separating area to be arranged, and lower end is tightly connected with isolation groove bottom land, and recirculating zone leads to
Cross a return duct 14 to connect with water body containing oil slick.
Specifically, the water inlet is arranged on isolation groove one end cell wall top, and the ullage in buffering area.
The isolation groove cell wall bottom of the water-oil separating area and recirculating zone is respectively provided with an at least leakage fluid dram, the grade leakage fluid dram
Connected with water body containing oil slick by the pipeline with balanced flow control valve 15 respectively.
Automatic oil skimming and overflow floor 11 are connected by an at least automatic overflow pipe with oil groove in the water-oil separating area.
The strike the oil unit includes a floating spill case 3, a disposable box 2 and a dip-tube 6, and the floating of floating spill case 3 sets
Put on the liquid level of water body containing oil slick, its top opens up oil slick entrance 5, bottom is set in the top of disposable box 2, and dip-tube 6 is vertically passed through
Wear and a plurality of drawing vertically is set with the middle and upper part corresponding position of disposable box 2 in floating spill case 3 and disposable box 2, and dip-tube 6
Oilhole 4, the upper end of dip-tube 6 is connected by the pipeline with the pump housing with the inlet 7 of isolation unit, and lower end opens up return port.
The ball-cock assembly that can coordinate with oil slick entrance 5 is set at the oil slick entrance 5, when the bottom of oil slick entrance 5 is in containing floating
When between the upper and lower end face of oil slick layer of profit body, ball-cock assembly is separately positioned with oil slick entrance 5, makes oil slick flow into floating spill case
3, when the oil slick layer lower surface containing oil slick water body is higher than oil slick 5 bottom of entrance, ball-cock assembly is arranged in oil slick entrance 5, to hinder
The disconnected liquid stream into floating spill case 3.The strike the oil hole is arranged on the bottom of dip-tube 6, and its tube wall of circular dip-tube 6 symmetrically sets
Put, and be vertically arranged as at least two rows, the lower end of dip-tube 6 arranges an equilibrium reflux lid, and return port is opened up on lid.Institute
It is the long circular shape breach for being opened in the upper end peripheral region of floating spill case 3 to state oil slick entrance 5.Also set in the profit separating device
Put a strike the oil unit rack that can be movable on vertical direction.The pump housing be pneumatic diaphragm pump 17, the plate and frame counter-infiltration
Element is porous plate 12.
It should be appreciated that above-described embodiment is only to illustrate technology design of the present utility model and feature, its object is to allow ripe
The personage for knowing technique will appreciate that content of the present utility model and implements according to this, can not limit of the present utility model with this
Protection domain.All equivalence changes made according to the utility model Spirit Essence or modification, all should cover of the present utility model
Within protection domain.
Claims (10)
1. a kind of continous way profit separating device, it is characterised in that including the strike the oil unit for being arranged on the ullage of water body containing oil slick
And the isolation unit connected with strike the oil unit, the isolation unit includes being provided with the isolation groove of inlet and recirculating zone, and from
Be sequentially provided with buffering area and water-oil separating area from inlet to recirculating zone direction in analysis groove, the strike the oil unit include disposable box,
Lower end is set in disposable box and floats on the floating spill case on the liquid level of water body containing oil slick and through floating spill case and receipts
The dip-tube of collection box, is vertically provided with disposable box corresponding position a plurality of strike the oil holes, the dip-tube on the dip-tube
Upper end is connected by the pipeline with the pump housing with the inlet of isolation unit, and the lower end of the dip-tube is further opened with return port.
2. continous way profit separating device according to claim 1, it is characterised in that：The buffering area is mainly by least one
The cushioning fender being vertically arranged is formed with isolation groove cell wall corral, and the upper end of the cushioning fender is higher by buffering area and water-oil separating
Liquid levels in area, lower end and the isolation groove bottom land interval setting of the cushioning fender.
3. continous way profit separating device according to claim 1, it is characterised in that：The water-oil separating area is mainly by phase
At least two pieces vertical plate and frame ro components for arranging and the cell wall corral for isolating groove are formed, is set in the water-oil separating area
There is oil-water separating net, and oil-water separating net upper end is provided with automatic oil skimming and overflow layer, wherein, near the plate and frame reverse osmosis of buffering area
Thoroughly element upper end be connected with automatic oil skimming and overflow layer, lower end and isolation groove bottom land interval setting, and another plate and frame counter-infiltration is first
The side of part is connected with automatic oil skimming and overflow layer, and the plate and frame ro components upper end is higher by automatic oil skimming and overflow layer,
Lower end and isolation groove bottom land interval setting.
4. continous way profit separating device according to claim 3, it is characterised in that：Skim automatically in the water-oil separating area
Oil and overflow layer are connected by automatic overflow pipe with oil groove, and/or the plate and frame ro components are porous plate.
5. continous way profit separating device according to claim 1, it is characterised in that：The recirculating zone is mainly by least one
The overflow baffle being vertically arranged is formed with the cell wall corral of isolation groove, upper end and buffering area and the water-oil separating of the overflow baffle
Liquid level in area is concordantly arranged, and lower end and the isolation groove bottom land of the overflow baffle are tightly connected, and are additionally provided with the recirculating zone
With the return duct of fluid connection in recirculating zone.
6. continous way profit separating device according to claim 1, it is characterised in that：The water-oil separating area and recirculating zone
Isolation groove cell wall bottom be respectively provided with an at least leakage fluid dram, the leakage fluid dram by the pipeline with balanced flow control valve with
Water body containing oil slick is connected.
7. continous way profit separating device according to claim 1, it is characterised in that：The inlet is arranged on isolation groove
Cell wall top, and in buffering area liquid level top.
8. continous way profit separating device according to claim 1, it is characterised in that：The strike the oil hole is arranged on dip-tube
Bottom, it is symmetrical arranged around drawing tube wall, and vertically at least arranges two rows, and dip-tube lower end is provided with and balances back
Stream lid, and return port is opened up on lid.
9. continous way profit separating device according to claim 1, it is characterised in that：The upper end week of the floating spill case
The oil slick entrance of long circular shape is offered at edge, the oil slick porch is provided with the ball-cock assembly that can coordinate with oil slick entrance, when
When oil slick entrance bottom is between the upper and lower end face of oil slick layer in water body containing oil slick, ball-cock assembly is separately positioned with oil slick entrance, makes
Oil slick flows into floating spill case, and when the lower surface of oil slick layer in water body containing oil slick is higher than oil slick entrance bottom, ball-cock assembly card sets
In oil slick entrance, to block the liquid stream into floating spill case.
10. continous way profit separating device according to claim 1, it is characterised in that：In the profit separating device also
Be provided with can on vertical direction activity strike the oil unit rack, and/or the pump housing at least be selected from pneumatic diaphragm pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620471716.4U CN206089113U (en) | 2016-05-23 | 2016-05-23 | Continuous type profit segregation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620471716.4U CN206089113U (en) | 2016-05-23 | 2016-05-23 | Continuous type profit segregation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206089113U true CN206089113U (en) | 2017-04-12 |
Family
ID=58471044
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620471716.4U Expired - Fee Related CN206089113U (en) | 2016-05-23 | 2016-05-23 | Continuous type profit segregation device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206089113U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105944404A (en) * | 2016-05-23 | 2016-09-21 | 卢征春 | Continuous oil-water separation device |
| CN117704137A (en) * | 2024-02-06 | 2024-03-15 | 上海四方锅炉集团工程成套股份有限公司 | Pressure balance component for oil treatment |
-
2016
- 2016-05-23 CN CN201620471716.4U patent/CN206089113U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105944404A (en) * | 2016-05-23 | 2016-09-21 | 卢征春 | Continuous oil-water separation device |
| CN117704137A (en) * | 2024-02-06 | 2024-03-15 | 上海四方锅炉集团工程成套股份有限公司 | Pressure balance component for oil treatment |
| CN117704137B (en) * | 2024-02-06 | 2024-05-10 | 上海四方锅炉集团工程成套股份有限公司 | Pressure balance component for oil treatment |
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| CF01 | Termination of patent right due to non-payment of annual fee |
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