CN201643778U - Non-stirring type extracting tower - Google Patents
Non-stirring type extracting tower Download PDFInfo
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- CN201643778U CN201643778U CN2010201162072U CN201020116207U CN201643778U CN 201643778 U CN201643778 U CN 201643778U CN 2010201162072 U CN2010201162072 U CN 2010201162072U CN 201020116207 U CN201020116207 U CN 201020116207U CN 201643778 U CN201643778 U CN 201643778U
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D11/00—Solvent extraction
- B01D11/04—Solvent extraction of solutions which are liquid
- B01D11/0426—Counter-current multistage extraction towers in a vertical or sloping position
- B01D11/043—Counter-current multistage extraction towers in a vertical or sloping position with stationary contacting elements, sieve plates or loose contacting elements
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Abstract
The utility model relates to a non-stirring type extracting tower comprising a sealed shell which consists of an upper seal head, a lower seal head and a cylindrical wall. The sealed shell sequentially comprises a raffinate sedimentation separation section, an extracting section, an extractive phase separation section and an extractive phase discharging section from bottom to top, the upper seal head is located at the extractive phase discharging section, the lower seal head is located at the raffinate sedimentation section, the raffinate sedimentation separation section is provided with a raffinate outlet and an extractant inlet, the upper part of the extracting section is provided with an inlet of materials to be extracted, an extracting section filler layer is arranged in the extracting section, the extractive phase separation section is internally provided with an extractive phase separation section filler layer, and an extractive phase outlet is arranged at the extractive phase discharging section. The extracting tower has simple structure and can effectively separate substances with different components and similar properties in the manner of extracting, and furthermore, each functional section has compact structure, the way of continuous separation ensures quality of separated final products tends to be stable, thw production cost is lowered and the production efficiency is improved.
Description
Technical field
The utility model relates to a kind of no agitated compartmented extractor, relates in particular to the extraction tower that a kind of fine chemistry industry is used for separating continuously two kinds of easy extracted components of multicomponent oil phase in producing, and belongs to chemical machinery field.
Background technology
In fine chemistry industry was produced, mostly the material of use or thick product were the liquid mixture is made up of fractions often they to be carried out separation to a certain degree, purified or the purpose of recovery useful constituent to reach.The mutually soluble liquids separating mixture is a lot, as: filtration, extraction, evaporation, distillation, rectifying and special extract rectification etc., extraction is a kind of separate mode wherein.
Extraction is a difference of utilizing each component of liquid solubility in solvent, with the separating liquid mixture.The used solvent of extraction process must satisfy following 4 basic demands:
1, solvent can not dissolve each other fully with separated mixture, can only partial miscibility, otherwise, after the extraction, can not realize any separation;
2, solvent has selectivity, promptly each component of separated mixture is had different solvabilities;
3, solvent and separated mixture must have certain density contrast, separate so that extraction phase is on good terms to become more readily available with raffinate;
4, solvent is easy to reclaim, and uses for systemic circulation.
After solvent was selected, most important for the selection of extraction equipment, extraction equipment had a variety of, and assembly type and tower is arranged, and having of having stirred and vibration, and what have is adapted to intermittent operation, and what have is adapted to the continous way operation, or the like.The selection of extraction equipment is according to the technological requirement and the condition of producing, and the physical property of system, and the size that requires treating capacity of separating or the like is selected.But it is bigger to extract cost at present, and extraction efficiency is not high, does not still have extensive technology and the equipment that separates the easy extracted component of multicomponent continuously.
The utility model content
For overcoming the above-mentioned defective of prior art, the utility model provides a kind of no agitated compartmented extractor, do not establish any mixing plant in the extraction tower, extractant flows from bottom to top by pressure, waits to extract material and relies on gravity to flow from top to bottom, and both are fully contact in extraction tower, extract, and cooperate the separation of extraction phase segregation section further extraction phase to be separated with raffinate phase, reach effective extract and separate, obtain satisfactory extraction phase and raffinate phase.Described no agitated compartmented extractor can be used for the extraction of the close easy extracted component of multi-component masses different component character, and extraction tower is simple in structure, and is easy to operate, and continuous extraction production is carried out in suitable scale, improves separative efficiency, reduces cost of investment.
The utility model is achieved through the following technical solutions: a kind of no agitated compartmented extractor, comprise by upper cover, the closure casing that low head and barrel constitute, described closure casing is divided into raffinate phase sedimentation separation section from bottom to up successively, extraction section, extraction phase segregation section and extraction phase discharging section, described upper cover is positioned at described extraction phase discharging section, described low head is positioned at described raffinate phase settling section, described raffinate phase sedimentation separation section is provided with raffinate phase outlet and extractant import, the top of described extraction section is provided with material inlet to be extracted, be provided with the extraction section packing layer in the described extraction section, be provided with extraction phase segregation section packing layer in the described extraction phase segregation section, described extraction phase discharging section is provided with the extraction phase outlet.
Described extractant import can be located at the top of described raffinate phase sedimentation separation section barrel, and described raffinate phase outlet can be located at the bottom of described raffinate phase sedimentation separation section barrel, and the bottom of described low head can be provided with drain.
The bottom of the barrel of described raffinate phase sedimentation separation section can constitute the raffinate phase subsider with described low head, described raffinate phase outlet can be located at the bottom of the barrel of described raffinate phase subsider, the diameter dimension of the cross section of described raffinate phase subsider can adopt oblique transition barrel to connect greater than the cross-sectional diameter size on described raffinate phase sedimentation separation section barrel top between the barrel on the top of described raffinate phase sedimentation separation section and the described raffinate phase subsider.
Material inlet described to be extracted can be positioned at the top of described extraction section packing layer.
Described extraction section packing layer can adopt sandwich construction, can be divided into some segments from top to bottom, each segment all can comprise extraction section filler and the horizontal grating of extraction section separately, the horizontal grating of described extraction section can be fixedlyed connected with the inboard of the barrel of described evaporator section, and described extraction section filler can be located on the horizontal grating of described extraction section.
Described extraction section filler can be Raschig ring, cascade ring, Pall ring, screen waviness or perforated plate corrugated any one.
Each segment of described extraction section packing layer can adopt identical or different extraction section filler respectively, and the vertical height of each segment can be identical or different.
Described extraction phase segregation section can comprise extraction phase segregation section filler and the horizontal grating of extraction phase segregation section, the horizontal grating of described extraction phase segregation section can be fixedlyed connected with the inboard of barrel of described extraction phase segregation section, the filler of described extraction phase segregation section can be located on the horizontal grating of described extraction phase segregation section, and described extraction phase segregation section filler can be Raschig ring, cascade ring, Pall ring, screen waviness or perforated plate corrugated any one.
Described extraction phase outlet can be located at the top of the barrel of described extraction phase discharging section, and the top of described upper cover can be provided with drain.
The top of the barrel of described extraction phase discharging section and described upper cover can constitute the extraction phase accumulator tank, described extraction phase outlet can be located at the top of the barrel of described extraction phase accumulator tank, the diameter dimension of the cross section of described extraction phase accumulator tank can adopt oblique transition barrel to connect greater than the cross-sectional diameter size of described extraction phase discharging section barrel bottom between the barrel of the bottom of described extraction phase discharging section and the described extraction phase accumulator tank.
The beneficial effects of the utility model are: the no agitated compartmented extractor that the utility model provides, extractant enters from the extraction tower bottom as light phase material, waiting to extract material enters from extraction tower top, both are in contact with one another and carry out extract and separate, by gravity with wait to extract solubility different in extractant of different component in the material and carry out phase-splitting, saved the extraction cost; Extraction tower also is provided with extraction phase segregation section, further separates with the raffinate phase of carrying secretly at this section extraction phase, has improved the yield of satisfactory extraction phase, has improved effect of extracting; Be equipped with packing layer in extraction section and the extraction phase segregation section in the extraction tower, thereby increased extractant and the contact area of waiting to extract material, improved effect of extracting; This extraction tower is not established agitator; compact conformation, simple between the difference in functionality section; easy operating; labour intensity is low, relies on the gravity phase-splitting, adopts the mode of separating continuously that the quality of the final products of separation is tended towards stability; reduced the extraction cost again; improved operating efficiency, to different component but the close material of character can effectively separate, be suitable for the Chemical Manufacture of serialization, scale.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
The specific embodiment
Referring to Fig. 1, the utility model provides a kind of no agitated compartmented extractor, this extraction tower is simple in structure, can effectively carry out extract and separate by the mode of repeatedly extraction to different component, material component that character is close, in addition, each functional section compact conformation of this extraction tower, adopt the repeatedly mode of extraction, the quality of the final products of separation is tended towards stability, and reduced production cost, improved production efficiency.
The no agitated compartmented extractor that the utility model provides, comprise by upper cover 16, the closure casing that low head 17 and barrel constitute, described closure casing is divided into raffinate phase sedimentation separation section 4 from bottom to up successively, extraction section 3, extraction phase segregation section 2 and extraction phase discharging section 1, described upper cover is positioned at described extraction phase discharging section, described low head is positioned at described raffinate phase settling section, described raffinate phase sedimentation separation section is provided with raffinate phase outlet 7 and extractant import 5, the top of described extraction section is provided with waits to extract material inlet 11, establish extraction section packing layer 9 in the described extraction section, establish extraction phase segregation section packing layer 12 in the described extraction phase segregation section, described extraction phase discharging section is provided with extraction phase outlet 13.
Can adopt welding, flange connection or other suitable connected modes to connect between described upper cover and the barrel and between described low head and the barrel, described barrel can adopt monolithic construction also can adopt the split-type structural corresponding with each section, when described barrel adopted split-type structural, the adjacent two sections barrel of described raffinate phase sedimentation separation section, extraction section, extraction phase segregation section, extraction phase discharging section can adopt the connected mode that flange 10 connects or other are suitable to connect.
Described extractant import can be located at the top of described raffinate phase sedimentation separation section barrel, and extractant is as light phase material with after material to be extracted contacts, and material moves upward together with waiting to extract in the material gently mutually; Described raffinate phase outlet can be located at the bottom of described raffinate phase sedimentation separation section barrel, make things convenient for the raffinate phase of heavy phase material to discharge and collect, the bottom of described low head can be provided with drain 8, be used to discharge various impurity, after using a period of time such as extraction tower, it is cleaned, and the cleaning fluid of cleaning can be discharged from drain, and drain also can be used for the remaining all kinds of materials of discharging extraction back tower simultaneously.
The bottom and the described low head of the barrel of described raffinate phase sedimentation separation section can constitute raffinate phase subsider 6, the material of described raffinate phase subsider can be Q235-B, 20#, 16MnR, 0Cr18Ni9Ti, wherein a kind of of 1Cr18Ni9Ti or 0Cr18Ni9, described raffinate phase outlet can be located at the bottom of the barrel of described raffinate phase subsider, described raffinate phase subsider is mainly used in temporary collection raffinate phase, simultaneously, by temporary storage raffinate phase is further separated with extraction phase, the raffinate phase that obtains by described raffinate phase subsider separation is more met the requirements; The diameter dimension of the cross section of described raffinate phase subsider can be greater than the cross-sectional diameter size on described raffinate phase sedimentation separation section barrel top, can adopt oblique transition barrel to connect between the barrel on the top of described raffinate phase sedimentation separation section and the raffinate phase subsider, the diameter dimension of the last circumference of described oblique transition barrel is corresponding with the cross-sectional diameter size of the barrel on described raffinate phase sedimentation separation section top, the diameter dimension of the following circumference of described oblique transition barrel is corresponding with the cross-sectional diameter size of described raffinate phase subsider, described oblique transition barrel can be alleviated the decrease speed of raffinate phase, produces eddy current when avoiding fluid to arrive the bottom or occurs the fluid dead angle in the bottom.
Material inlet described to be extracted can be positioned at the top of described extraction section packing layer, to guarantee that waiting to extract material flows by gravity from top to bottom, fully contact in extraction section with extractant and to extract, described packing layer can enlarge the contact area of waiting to extract between material and the extractant, improves effect of extracting.
Described extraction section packing layer can adopt sandwich construction, can be divided into some segments from top to bottom, such as being 5 sections, 6 sections, 7 sections or 8 sections, extraction section is divided into different segments, extractant and treat that extracting substance can successfully realize flowing up or down, can improve the contact area with filler again, improve effect of extracting.The barrel of the extraction section at packing layer place can be monolithic construction, also can adopt split-type structural according to the number of packing layer segment, when adopting split-type structural, the barrel of the extraction section at adjacent two segment packing layer places can adopt flange to connect, welding or other suitable connected modes connect, each segment of described extraction section packing layer all can comprise extraction section filler 9 and the horizontal grating 15 of extraction section separately, the horizontal grating of described extraction section can be fixedlyed connected with the inboard of the barrel of described evaporator section, described fixedly connected welding or other the suitable connected modes of can adopting connects, described extraction section filler can be located on the horizontal grating of described extraction section, and the horizontal grating of described extraction section can play the effect of support to described extraction section filler.
Described extraction section filler can be Raschig ring, cascade ring, Pall ring, screen waviness or perforated plate corrugated any one, the material of described extraction section filler can be wherein a kind of of Q235-B, 20#, 16MnR, 0Cr18Ni9Ti, 1Cr18Ni9Ti or 0Cr18Ni9, and described extraction material inlet can be positioned at the top of first segment of described extraction section top.
Each segment of described extraction section packing layer can adopt identical or different filler respectively, and the height of each segment can be identical or different, adopts identical filler and/or identical height, can make things convenient for equipment processing, installation and production operation; The height of selecting different fillers for use and/or suitably improving each segment according to extraction step and effect of extracting can be more conducive to improve effect of extracting.
Described extraction phase segregation section can comprise extraction phase segregation section filler and the horizontal grating of extraction phase segregation section, the horizontal grating of described raffinate phase segregation section can be fixedlyed connected with the inboard of the barrel of described raffinate phase segregation section, described fixedly connected welding or other the suitable connected modes of can adopting connects, the filler of described extraction phase segregation section can be located on the horizontal grating of described extraction phase segregation section, described extraction phase segregation section filler can be Raschig ring, cascade ring, Pall ring, screen waviness or perforated plate corrugated any one, the material of described extraction phase segregation section filler can be Q235-B, 20#, 16MnR, 0Cr18Ni9Ti, wherein a kind of of 1Cr18Ni9Ti or 0Cr18Ni9, through after the extraction section extraction, the raffinate phase of carrying secretly in extraction phase and the extraction phase is further separated at described extraction phase segregation section.
Described extraction phase outlet can be located at the top of the barrel of described extraction phase discharging section, the top of the barrel of described extraction phase discharging section and described upper cover can constitute the extraction phase accumulator tank, be used for temporary collection extraction phase material, described extraction phase outlet can be located at the top of the barrel of described extraction phase accumulator tank, because extraction phase and extractant are light phase materials, therefore the extraction phase that is in extraction phase accumulator tank top more meets the requirements, satisfactory extraction phase can discharge and collect by being arranged at the outer gatherer of tower by described extraction phase outlet, the diameter dimension of the cross section of described extraction phase accumulator tank can be greater than the cross-sectional diameter size of described extraction phase discharging section barrel bottom, can adopt oblique transition barrel to connect between the barrel of the bottom of described extraction phase discharging section and the described extraction phase accumulator tank, the diameter dimension of the following circumference of described oblique transition barrel is corresponding with the cross-sectional diameter size of the barrel of described extraction phase discharging section bottom, the diameter dimension of the last circumference of described oblique transition barrel is corresponding with the cross-sectional diameter size of described extraction phase accumulator tank, described extraction phase accumulator tank can be alleviated the rate of climb of extraction phase, produces eddy current when having avoided fluid to arrive top or occurs the fluid dead angle on top.The top of described upper cover can be provided with drain 14, and after injecting extractant and wait to extract material in the production processing procedure, the air in the tower can be discharged to outside the tower from described drain.
The operation principle of described no agitated compartmented extractor is: open drain, along with injecting liquid in the tower, air in the extraction tower is therefrom discharged gradually, in extraction tower, squeeze into extractant through the extractant import by pressure, be full of the bottom of extraction tower gradually, through waiting that extracting material inlet imports material to be extracted in extraction tower, waiting to extract material flows downward by gravity, progressively fully contact with extractant, because extractant is light phase material, wait to extract that existing heavy phase material also has light phase material in the material, the light solubility of phase material in extractant is greater than the solubility of heavy phase material in extractant, therefore, under the effect of gravity, treat that light phase material in the extracting substance is dissolved in the extractant and move to the extraction tower top gradually, treat that the heavy phase material in the extracting substance progressively moves to the extraction tower bottom, extraction section is divided into 5-8 segment, each segment is provided with filler, thereby raising effect of extracting, pass through the extraction phase of the preliminary extract and separate of extraction section and then enter extraction phase segregation section, in this section, extraction phase and the raffinate phase of carrying secretly thereof are separated again, further the extraction phase that separates enters the extraction phase discharging section and discharges from the extraction phase outlet, further the raffinate phase that separates relies on gravity to be back to extraction section downwards, raffinate phase through the preliminary extract and separate of extraction section enters raffinate phase sedimentation separation section, in the top raffinate phase of raffinate phase sedimentation separation section and the extraction phase quilt sedimentation separation again of carrying secretly thereof, further the extraction phase that separates progressively moves upward and enters extraction section once more, and further the raffinate phase that separates enters the raffinate phase subsider and discharges from the raffinate phase outlet that is arranged at raffinate phase subsider bottom.
Claims (10)
1. no agitated compartmented extractor, it is characterized in that comprising by upper cover, the closure casing that low head and barrel constitute, described closure casing is divided into raffinate phase sedimentation separation section from bottom to up successively, extraction section, extraction phase segregation section and extraction phase discharging section, described upper cover is positioned at described extraction phase discharging section, described low head is positioned at described raffinate phase settling section, described raffinate phase sedimentation separation section is provided with raffinate phase outlet and extractant import, the top of described extraction section is provided with material inlet to be extracted, be provided with the extraction section packing layer in the described extraction section, be provided with extraction phase segregation section packing layer in the described extraction phase segregation section, described extraction phase discharging section is provided with the extraction phase outlet.
2. no agitated compartmented extractor according to claim 1, it is characterized in that described extractant import is located at the top of described raffinate phase sedimentation separation section barrel, the bottom of described raffinate phase sedimentation separation section barrel is located in described raffinate phase outlet, and the bottom of described low head is provided with drain.
3. no agitated compartmented extractor according to claim 2, the bottom and the described low head that it is characterized in that the barrel of described raffinate phase sedimentation separation section constitute the raffinate phase subsider, described raffinate phase outlet is located at the bottom of the barrel of described raffinate phase subsider, the diameter dimension of the cross section of described raffinate phase subsider adopts oblique transition barrel to connect greater than the cross-sectional diameter size on described raffinate phase sedimentation separation section barrel top between the barrel on the top of described raffinate phase sedimentation separation section and the described raffinate phase subsider.
4. no agitated compartmented extractor according to claim 3 is characterized in that material inlet described to be extracted is positioned at the top of described extraction section packing layer.
5. no agitated compartmented extractor according to claim 4, it is characterized in that described extraction section packing layer adopts sandwich construction, be divided into some segments from top to bottom, each segment includes extraction section filler and the horizontal grating of extraction section separately, the horizontal grating of described extraction section is fixedlyed connected with the inboard of barrel of described evaporator section, and described extraction section filler is located on the horizontal grating of described extraction section.
6. no agitated compartmented extractor according to claim 5 is characterized in that described extraction section filler is Raschig ring, cascade ring, Pall ring, screen waviness or perforated plate corrugated any one.
7. no agitated compartmented extractor according to claim 6 is characterized in that each segment of described extraction section packing layer adopts identical or different extraction section filler respectively, and the vertical height of each segment is identical or different.
8. no agitated compartmented extractor according to claim 7, it is characterized in that described extraction phase segregation section comprises extraction phase segregation section filler and the horizontal grating of extraction phase segregation section, the horizontal grating of described extraction phase segregation section is fixedlyed connected with the inboard of barrel of described extraction phase segregation section, the filler of described extraction phase segregation section is located on the horizontal grating of described extraction phase segregation section, and described extraction phase segregation section filler is Raschig ring, cascade ring, Pall ring, screen waviness or perforated plate corrugated any one.
9. no agitated compartmented extractor according to claim 8 is characterized in that described extraction phase exports the top of the barrel of being located at described extraction phase discharging section, and the top of described upper cover is provided with drain.
10. no agitated compartmented extractor according to claim 9, the top and the described upper cover that it is characterized in that the barrel of described extraction phase discharging section constitute the extraction phase accumulator tank, the top of the barrel of described extraction phase accumulator tank is located in described extraction phase outlet, the diameter dimension of the cross section of described extraction phase accumulator tank adopts oblique transition barrel to connect greater than the cross-sectional diameter size of described extraction phase discharging section barrel bottom between the barrel of the bottom of described extraction phase discharging section and the described extraction phase accumulator tank.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201162072U CN201643778U (en) | 2010-02-11 | 2010-02-11 | Non-stirring type extracting tower |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010201162072U CN201643778U (en) | 2010-02-11 | 2010-02-11 | Non-stirring type extracting tower |
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| CN201643778U true CN201643778U (en) | 2010-11-24 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102728099A (en) * | 2012-06-26 | 2012-10-17 | 中国科学院过程工程研究所 | Filler extraction tower for gradient fractionating separation of large phase ratio system, and extraction method thereof |
| CN103418162A (en) * | 2013-08-21 | 2013-12-04 | 江苏科圣化工机械有限公司 | Extraction apparatus capable of enhancing liquid-liquid separation effect |
| CN103845924A (en) * | 2012-12-07 | 2014-06-11 | 厦门大学 | Parallel flow falling film extraction process and equipment |
| CN106110706A (en) * | 2016-08-24 | 2016-11-16 | 叶青 | A kind of detachable continuous extraction tower |
| CN108273286A (en) * | 2017-07-23 | 2018-07-13 | 杭州众盛新科技有限公司 | A kind of technique removing ginkgoic acid from ginkgo biloba p.e |
| JP2019520978A (en) * | 2016-08-05 | 2019-07-25 | ケプコ ニュークリア フューエル カンパニー リミテッド | Modular extraction tower |
| CN110314409A (en) * | 2019-07-29 | 2019-10-11 | 潍坊益华化工有限公司 | A kind of multi-stage continuous extraction tower and technique |
-
2010
- 2010-02-11 CN CN2010201162072U patent/CN201643778U/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102728099A (en) * | 2012-06-26 | 2012-10-17 | 中国科学院过程工程研究所 | Filler extraction tower for gradient fractionating separation of large phase ratio system, and extraction method thereof |
| CN102728099B (en) * | 2012-06-26 | 2014-09-24 | 中国科学院过程工程研究所 | Filler extraction tower for gradient fractionating separation of large phase ratio system, and extraction method thereof |
| CN103845924A (en) * | 2012-12-07 | 2014-06-11 | 厦门大学 | Parallel flow falling film extraction process and equipment |
| CN103845924B (en) * | 2012-12-07 | 2017-02-22 | 北京紫光英力化工技术有限公司 | Parallel flow falling film extraction process and equipment |
| CN103418162A (en) * | 2013-08-21 | 2013-12-04 | 江苏科圣化工机械有限公司 | Extraction apparatus capable of enhancing liquid-liquid separation effect |
| JP2019520978A (en) * | 2016-08-05 | 2019-07-25 | ケプコ ニュークリア フューエル カンパニー リミテッド | Modular extraction tower |
| EP3495029A4 (en) * | 2016-08-05 | 2020-05-27 | Kepco Nuclear Fuel Co., Ltd | Modular extraction tower |
| CN106110706A (en) * | 2016-08-24 | 2016-11-16 | 叶青 | A kind of detachable continuous extraction tower |
| CN108273286A (en) * | 2017-07-23 | 2018-07-13 | 杭州众盛新科技有限公司 | A kind of technique removing ginkgoic acid from ginkgo biloba p.e |
| CN110314409A (en) * | 2019-07-29 | 2019-10-11 | 潍坊益华化工有限公司 | A kind of multi-stage continuous extraction tower and technique |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101124 Termination date: 20150211 |
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| EXPY | Termination of patent right or utility model |