CN109236662A - 一种故障率低的离心泵 - Google Patents
一种故障率低的离心泵 Download PDFInfo
- Publication number
- CN109236662A CN109236662A CN201810917234.0A CN201810917234A CN109236662A CN 109236662 A CN109236662 A CN 109236662A CN 201810917234 A CN201810917234 A CN 201810917234A CN 109236662 A CN109236662 A CN 109236662A
- Authority
- CN
- China
- Prior art keywords
- pump
- sealing chamber
- pump cover
- machine sealing
- machine
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000007789 sealing Methods 0.000 claims abstract description 90
- 239000000725 suspension Substances 0.000 claims abstract description 18
- 230000004048 modification Effects 0.000 claims abstract description 17
- 238000012986 modification Methods 0.000 claims abstract description 17
- 238000009434 installation Methods 0.000 claims abstract description 11
- 238000005121 nitriding Methods 0.000 claims description 36
- 238000012545 processing Methods 0.000 claims description 27
- 238000000034 method Methods 0.000 claims description 23
- 239000006087 Silane Coupling Agent Substances 0.000 claims description 18
- 239000000203 mixture Substances 0.000 claims description 16
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 claims description 15
- 238000006243 chemical reaction Methods 0.000 claims description 14
- 239000007788 liquid Substances 0.000 claims description 14
- 230000008569 process Effects 0.000 claims description 13
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical compound [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 claims description 10
- 238000003756 stirring Methods 0.000 claims description 10
- NGDQQLAVJWUYSF-UHFFFAOYSA-N 4-methyl-2-phenyl-1,3-thiazole-5-sulfonyl chloride Chemical compound S1C(S(Cl)(=O)=O)=C(C)N=C1C1=CC=CC=C1 NGDQQLAVJWUYSF-UHFFFAOYSA-N 0.000 claims description 6
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 claims description 6
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 claims description 6
- 239000002202 Polyethylene glycol Substances 0.000 claims description 6
- MASBWURJQFFLOO-UHFFFAOYSA-N ammeline Chemical compound NC1=NC(N)=NC(O)=N1 MASBWURJQFFLOO-UHFFFAOYSA-N 0.000 claims description 6
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 claims description 6
- 239000004327 boric acid Substances 0.000 claims description 6
- 229920001223 polyethylene glycol Polymers 0.000 claims description 6
- 230000005855 radiation Effects 0.000 claims description 6
- XZZNDPSIHUTMOC-UHFFFAOYSA-N triphenyl phosphate Chemical compound C=1C=CC=CC=1OP(OC=1C=CC=CC=1)(=O)OC1=CC=CC=C1 XZZNDPSIHUTMOC-UHFFFAOYSA-N 0.000 claims description 6
- IGFHQQFPSIBGKE-UHFFFAOYSA-N Nonylphenol Natural products CCCCCCCCCC1=CC=C(O)C=C1 IGFHQQFPSIBGKE-UHFFFAOYSA-N 0.000 claims description 5
- UIIMBOGNXHQVGW-DEQYMQKBSA-M Sodium bicarbonate-14C Chemical compound [Na+].O[14C]([O-])=O UIIMBOGNXHQVGW-DEQYMQKBSA-M 0.000 claims description 5
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims description 5
- 235000019270 ammonium chloride Nutrition 0.000 claims description 5
- 239000004202 carbamide Substances 0.000 claims description 5
- 235000013877 carbamide Nutrition 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 claims description 5
- 238000009413 insulation Methods 0.000 claims description 5
- 238000002156 mixing Methods 0.000 claims description 5
- SNQQPOLDUKLAAF-UHFFFAOYSA-N nonylphenol Chemical compound CCCCCCCCCC1=CC=CC=C1O SNQQPOLDUKLAAF-UHFFFAOYSA-N 0.000 claims description 5
- 229940051841 polyoxyethylene ether Drugs 0.000 claims description 5
- 229920000056 polyoxyethylene ether Polymers 0.000 claims description 5
- OTYBMLCTZGSZBG-UHFFFAOYSA-L potassium sulfate Chemical compound [K+].[K+].[O-]S([O-])(=O)=O OTYBMLCTZGSZBG-UHFFFAOYSA-L 0.000 claims description 5
- 229910052939 potassium sulfate Inorganic materials 0.000 claims description 5
- 235000011151 potassium sulphates Nutrition 0.000 claims description 5
- 238000004321 preservation Methods 0.000 claims description 5
- GCLGEJMYGQKIIW-UHFFFAOYSA-H sodium hexametaphosphate Chemical compound [Na]OP1(=O)OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])O1 GCLGEJMYGQKIIW-UHFFFAOYSA-H 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 239000002023 wood Substances 0.000 claims description 5
- NVIFVTYDZMXWGX-UHFFFAOYSA-N sodium metaborate Chemical compound [Na+].[O-]B=O NVIFVTYDZMXWGX-UHFFFAOYSA-N 0.000 claims description 4
- 239000008367 deionised water Substances 0.000 claims description 3
- 229910021641 deionized water Inorganic materials 0.000 claims description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims 2
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 claims 1
- 238000005119 centrifugation Methods 0.000 claims 1
- 239000003795 chemical substances by application Substances 0.000 claims 1
- 238000002715 modification method Methods 0.000 claims 1
- 229910052757 nitrogen Inorganic materials 0.000 claims 1
- 238000005086 pumping Methods 0.000 claims 1
- 229910000077 silane Inorganic materials 0.000 claims 1
- 238000002604 ultrasonography Methods 0.000 claims 1
- 230000000052 comparative effect Effects 0.000 description 12
- 238000001816 cooling Methods 0.000 description 5
- 230000005251 gamma ray Effects 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 239000002826 coolant Substances 0.000 description 4
- BVPWJMCABCPUQY-UHFFFAOYSA-N 4-amino-5-chloro-2-methoxy-N-[1-(phenylmethyl)-4-piperidinyl]benzamide Chemical compound COC1=CC(N)=C(Cl)C=C1C(=O)NC1CCN(CC=2C=CC=CC=2)CC1 BVPWJMCABCPUQY-UHFFFAOYSA-N 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000003628 erosive effect Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 239000004615 ingredient Substances 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 description 2
- JMANVNJQNLATNU-UHFFFAOYSA-N oxalonitrile Chemical compound N#CC#N JMANVNJQNLATNU-UHFFFAOYSA-N 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 230000001603 reducing effect Effects 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 229910001060 Gray iron Inorganic materials 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 150000001335 aliphatic alkanes Chemical class 0.000 description 1
- 150000001408 amides Chemical class 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 239000007822 coupling agent Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 210000002700 urine Anatomy 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D1/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D161/00—Coating compositions based on condensation polymers of aldehydes or ketones; Coating compositions based on derivatives of such polymers
- C09D161/34—Condensation polymers of aldehydes or ketones with monomers covered by at least two of the groups C09D161/04, C09D161/18 and C09D161/20
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/63—Additives non-macromolecular organic
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/65—Additives macromolecular
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C8/00—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C8/60—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using solids, e.g. powders, pastes
- C23C8/62—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using solids, e.g. powders, pastes only one element being applied
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/02—Selection of particular materials
- F04D29/026—Selection of particular materials especially adapted for liquid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/08—Sealings
- F04D29/086—Sealings especially adapted for liquid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/426—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for liquid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/58—Cooling; Heating; Diminishing heat transfer
- F04D29/586—Cooling; Heating; Diminishing heat transfer specially adapted for liquid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/669—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for liquid pumps
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Metallurgy (AREA)
- Inorganic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
Description
Claims (9)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201810917234.0A CN109236662B (zh) | 2018-08-13 | 2018-08-13 | 一种故障率低的离心泵 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201810917234.0A CN109236662B (zh) | 2018-08-13 | 2018-08-13 | 一种故障率低的离心泵 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN109236662A true CN109236662A (zh) | 2019-01-18 |
CN109236662B CN109236662B (zh) | 2020-12-29 |
Family
ID=65070583
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201810917234.0A Active CN109236662B (zh) | 2018-08-13 | 2018-08-13 | 一种故障率低的离心泵 |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN109236662B (zh) |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB836457A (en) * | 1956-06-28 | 1960-06-01 | Union Carbide Corp | Improvements in and relating to gas diffusers for electric batteries |
CN1211261A (zh) * | 1996-02-22 | 1999-03-17 | 德克斯特公司 | 水分散性聚合物和含有该聚合物的涂料组合物 |
CN1615376A (zh) * | 2001-11-14 | 2005-05-11 | 杰富意钢铁株式会社 | 表面处理的金属板和表面处理剂 |
CN102927057A (zh) * | 2012-11-29 | 2013-02-13 | 无锡艾比德泵业有限公司 | 离心泵机械密封的冷却结构 |
GB201412048D0 (en) * | 2013-07-15 | 2014-08-20 | Gen Electric Co Plc | Coating, coated turbine component, and coating process |
CN106015012A (zh) * | 2016-07-11 | 2016-10-12 | 无锡艾比德泵业有限公司 | 新型立式多级泵 |
CN107559237A (zh) * | 2017-07-07 | 2018-01-09 | 安徽卧龙泵阀股份有限公司 | 一种长寿命离心泵泵盖 |
-
2018
- 2018-08-13 CN CN201810917234.0A patent/CN109236662B/zh active Active
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB836457A (en) * | 1956-06-28 | 1960-06-01 | Union Carbide Corp | Improvements in and relating to gas diffusers for electric batteries |
CN1211261A (zh) * | 1996-02-22 | 1999-03-17 | 德克斯特公司 | 水分散性聚合物和含有该聚合物的涂料组合物 |
CN1615376A (zh) * | 2001-11-14 | 2005-05-11 | 杰富意钢铁株式会社 | 表面处理的金属板和表面处理剂 |
CN102927057A (zh) * | 2012-11-29 | 2013-02-13 | 无锡艾比德泵业有限公司 | 离心泵机械密封的冷却结构 |
GB201412048D0 (en) * | 2013-07-15 | 2014-08-20 | Gen Electric Co Plc | Coating, coated turbine component, and coating process |
CN106015012A (zh) * | 2016-07-11 | 2016-10-12 | 无锡艾比德泵业有限公司 | 新型立式多级泵 |
CN107559237A (zh) * | 2017-07-07 | 2018-01-09 | 安徽卧龙泵阀股份有限公司 | 一种长寿命离心泵泵盖 |
Also Published As
Publication number | Publication date |
---|---|
CN109236662B (zh) | 2020-12-29 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
AU2019101710A4 (en) | Air-liquid mixed type self-priming centrifugal pump | |
CN107740167A (zh) | 一种常温稳定高效铝及铝合金环保封闭剂 | |
CN108220873A (zh) | 一种搅拌机不锈钢叶片的表面处理方法 | |
CN108685137A (zh) | 一种用于腌制食品的节能高效装置 | |
CN109236662A (zh) | 一种故障率低的离心泵 | |
CN107475719A (zh) | 一种新型立式氧化线两酸抛光装置 | |
JP2004277784A (ja) | 高耐食高耐磨耗性アルミニウム材及びその表面処理方法 | |
CN109346306A (zh) | 一种用于钕铁硼磁体表面防护的原位复合涂层及其制备方法 | |
CN110512265B (zh) | 一种镁合金表面复合膜及其制备方法 | |
Liu et al. | Cold model study on Mg desulfurization of hot metal under mechanical stirring | |
CN109236661A (zh) | 一种耐磨耐腐的离心泵 | |
CN109268275A (zh) | 一种使用稳定、寿命长的离心泵 | |
CN207468738U (zh) | 一种新型立式氧化线两酸抛光装置 | |
CN204827958U (zh) | 小型潜水泵 | |
CN210565312U (zh) | 一种用于含氯离子烟气的脱硫循环离心泵 | |
TWM623453U (zh) | 自吸式抽水機之吸水流道構造 | |
CN109098973A (zh) | 一种噪音小的离心泵 | |
CN213739599U (zh) | 一种便于维持冷却液温度的钢球加工用淬火装置 | |
CN108796583A (zh) | 一种纯铁表面耐腐蚀性超疏水钝化膜的制备方法 | |
CN114351203A (zh) | 压缩机用铝质涡旋盘表面陶瓷涂层的制备方法、涡旋盘 | |
CN211314573U (zh) | 一种出水流量大的离心污泥泵 | |
CN207251346U (zh) | 一种真空泵电机挡板 | |
CN215256824U (zh) | 一种卧式陶瓷海水循环泵 | |
CN212429278U (zh) | 一种立式陶瓷海水循环泵 | |
CN112761839B (zh) | 一种高压油泵钝角油槽的柱塞耦件 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
GR01 | Patent grant | ||
GR01 | Patent grant | ||
PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Centrifugal pump with low failure rate Effective date of registration: 20210824 Granted publication date: 20201229 Pledgee: Jingxian SME Financing Guarantee Co.,Ltd. Pledgor: ANHUI WOLONG PUMP & VALVE Co.,Ltd. Registration number: Y2021990000759 |
|
PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20220906 Granted publication date: 20201229 Pledgee: Jingxian SME Financing Guarantee Co.,Ltd. Pledgor: ANHUI WOLONG PUMP & VALVE Co.,Ltd. Registration number: Y2021990000759 |
|
PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: A centrifugal pump with low failure rate Effective date of registration: 20220907 Granted publication date: 20201229 Pledgee: Jingxian SME Financing Guarantee Co.,Ltd. Pledgor: ANHUI WOLONG PUMP & VALVE Co.,Ltd. Registration number: Y2022990000606 |
|
PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20231012 Granted publication date: 20201229 Pledgee: Jingxian SME Financing Guarantee Co.,Ltd. Pledgor: ANHUI WOLONG PUMP & VALVE Co.,Ltd. Registration number: Y2022990000606 |
|
PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: A centrifugal pump with low failure rate Effective date of registration: 20231211 Granted publication date: 20201229 Pledgee: Jingxian SME Financing Guarantee Co.,Ltd. Pledgor: ANHUI WOLONG PUMP & VALVE Co.,Ltd. Registration number: Y2023980070548 |
|
PE01 | Entry into force of the registration of the contract for pledge of patent right |