CN103047153B - Broad-spectrum corrosion-resistant water ring vacuum pump - Google Patents
Broad-spectrum corrosion-resistant water ring vacuum pump Download PDFInfo
- Publication number
- CN103047153B CN103047153B CN201310003114.7A CN201310003114A CN103047153B CN 103047153 B CN103047153 B CN 103047153B CN 201310003114 A CN201310003114 A CN 201310003114A CN 103047153 B CN103047153 B CN 103047153B
- Authority
- CN
- China
- Prior art keywords
- impeller
- pump
- water ring
- shaft
- pump shaft
- 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.)
- Active
Links
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a broad-spectrum corrosion-resistant water ring vacuum pump and belongs to the field of vacuum equipment. The broad-spectrum corrosion-resistant water ring vacuum pump comprises a pump body, a pump cover and a pump shaft which are made of metal. An impeller is sleeved on the pump shaft. Discs are disposed at two ends of the impeller. The broad-spectrum corrosion-resistant water ring vacuum pump is characterized in that a polyvinylidene fluoride lining is melted and pressed on the inner wall of each of the pump body and the pump cover, shaft sleeves are sleeved on the pump shaft at two ends of the impeller, the discs, the shaft sleeves and the impeller are formed by melted pressing with polyvinylidene fluoride. One end of each shaft sleeve is matched and assembled with a hub while the other end of each shaft sleeve is matched and assembled with a locking nut on the pump shaft. Due to the fact that polyvinylidene fluoride has high melting viscosity, the product formed by polyvinylidene fluoride has good mechanical strength and toughness. In a wide temperature range, the water ring vacuum pump has good stability. Wear resistance, corrosion resistance and impact resistance of the water ring vacuum pump are improved effectively. The problems that the impeller is prone to cavitation and the lining drops easily are solved. A plurality of seal faces are formed between the impeller and the shaft sleeves. Comprehensive corrosion resistance of the water ring vacuum pump is achieved.
Description
Technical field
The invention belongs to technical field of vacuum equipment, be specifically related to a kind of wide spectrum corrosion resistance water ring vaccum pump.
Background technique
In the industries such as chemical industry, pharmacy, papermaking, building materials, plastics, weaving, the especially production link such as vacuum handling, vacuum desolvation, negative pressure rectifying, adopts Nash hytor aspirate and carry gas mostly.In the process used, the corrosive elements contained in gas easy corrosive water ring vacuum pump, serious curtailment working life of water ring vaccum pump, increases the investment of user.So people fall over each other the antiseptic property being improved water ring vaccum pump by various means, market there is in succession polytype water ring vaccum pump, but in the using process of reality, still there is many drawbacks.
Chinese patent 200820016364.9 discloses a kind of stainless steel inner lining anti-corrosive type liquid ring vacuum pump, by arranging the antiseptic property that stainless steel lining improves vacuum pump on the inwall of the low carbon steel pump housing.Current stainless steel is of a great variety, but does not have a kind of stainless steel can be applicable to various different Korrosionsmedium, has limited to the suitable application area of vacuum pump; And stainless steel is expensive, difficulty of processing is large, and waste of material is large, due to the restriction of blank size, makes the stainless steel of about 20% become leftover pieces.
Chinese patent 94229021.6 discloses a kind of acid-resistant ceramic liquid-piston rotary vacuum pump, and this pump improves the antiseptic property of vacuum pump by setting up ceramic lined.In the process used, alkaline resistance properties is relatively poor, and the intensity of ceramic lining is low, and shock resistance is poor, in the low temperature environment of subzero less than four degrees Celsius, more easily damages; And can not repair damaged after ceramic lining, thus affect its antiseptic power.
Chinese patent 201020698901.X discloses a kind of corrosion resistant water ring vacuum pump, and this pump improves its antiseptic property by the wall that flows through at overcurrent component fluid arranges corrosion-resistant finishes.But because coating is too thin or the irregular even leak source of coating, in the process used, still can corrosion and damage metal base.
From above-mentioned, the antiseptic property of water ring vaccum pump still has much room for improvement, under the prerequisite reducing customer investment, and the user demand of As soon as possible Promising Policy corrosive atmosphere.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of wide spectrum corrosion resistance water ring vaccum pump, can improve its antiseptic property comprehensively.
For solving the problems of the technologies described above, technological scheme of the present invention is: design a kind of wide spectrum corrosion resistance water ring vaccum pump, comprise the pump housing of metal material, pump cover and pump shaft, pump shaft is set with impeller, the two ends of impeller arrange disk, fusion pressure polyvinylidene fluoride lining on the inwall of the pump housing and pump cover; The pump shaft at impeller two ends is set with axle sleeve, and disk, axle sleeve and impeller are shaping by polyvinylidene fluoride fusion pressure, and axle sleeve one end is by wheel hub mutually equipped, the other end connecting lock jack panel of worm structure with impeller, and locking nut is fitted on pump shaft.Impeller for pump shaft is installed trepanning in steel bushing is set, the outer wall of steel bushing is wound with ring-type horizontal fin and along the axial arranged longitudinal fin of steel bushing, impeller fusion pressure is on steel bushing.Add polytetrafluoroethylsealed sealed pad between axle sleeve and impeller, polytetrafluoroethylsealed sealed cushion cover is contained on pump shaft.The wheel hub end wall of impeller offers annular groove, on disk inlet opening to offer position corresponding with groove.
Compared with prior art, the invention has the beneficial effects as follows:
1, because polyvinylidene fluoride has higher melt viscosity, its moulded products has good mechanical strength and toughness; And in wider temperature range, not by acid, alkali, strong oxidizer and halogen corrode, there is good stability, fusion pressure polyvinylidene fluoride lining on the inwall of the pump housing and pump cover, the pump shaft at impeller two ends is set with axle sleeve, disk, axle sleeve and impeller are shaping by polyvinylidene fluoride fusion pressure, effectively can strengthen the wear-resistant, corrosion-resistant of water ring vaccum pump and shock resistance, and solve the problem that impeller easily cavitates when high vacuum; Adopt fusion pressure preparation process, polyvinylidene fluoride can be made to stick on metallic shell wall closely, securely, improve its impact resistance further, solve the caducous drawback of lining in prior art.Axle sleeve one end is equipped with the wheel hub of impeller mutually by worm structure, the other end is connected the locking nut be fitted on pump shaft, the wheel hub of impeller can be made to be screwedly mounted on axle sleeve, and under the locking effect of locking nut, make together with the wheel hub of impeller fits tightly with the thread joint face of shaft room, form multiple sealing surface, effectively improve the antiseptic power of pump shaft, thus achieve the comprehensively anticorrosion of water ring vaccum pump.
2, due to impeller for pump shaft is installed trepanning in steel bushing is set, the outer wall of steel bushing is wound with ring-type horizontal fin and along the axial arranged longitudinal fin of steel bushing, impeller fusion pressure is on steel bushing, impeller can be made to be arranged on pump shaft by steel bushing, solve metal contact with nonmetal and when Forced rotation, cause the problem of impeller scroll key because intensity is different.Meanwhile, impeller can be made to be fastened on steel bushing by horizontal fin and longitudinal fin, avoid in impeller working procedure and under the effect of impact force, depart from steel bushing and cisco unity malfunction.
3, owing to adding polytetrafluoroethylsealed sealed pad between axle sleeve and impeller, polytetrafluoroethylsealed sealed cushion cover is contained on pump shaft, adds the anti-corrosive properties defence line of one pump shaft, further increases the antiseptic property of pump shaft.
4, due to the wheel hub end wall of impeller offering annular groove, on disk inlet opening to offer position corresponding with groove, be opened in compared with the corresponding position of inlet opening in pump cover with inlet opening in prior art, change the circulating path of water liquid in vacuum pump, water liquid is thrown away along impeller radial direction under the influence of centrifugal force, alleviate the percussion of water liquid to impeller Leaf, extend the working life of impeller.
5, structure of the present invention is simple, can the overall antiseptic power of comprehensive raising water ring vaccum pump, is convenient in industry apply.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is shaft seal structure schematic diagram in the present invention;
Fig. 3 is the zoomed-in view of local I in Fig. 2;
Fig. 4 is the three-dimensional structure diagram of steel bushing in the present invention;
Fig. 5 is the three-dimensional structure diagram of impeller in the present invention.
Mark in figure: 1, the pump housing; 2, impeller; 3, steel bushing; 4, axle sleeve; 5, locking nut; 6, disk; 7, pump cover; 8, pump shaft; 9, polyvinylidene fluoride lining; 10, polytetrafluoroethylsealed sealed pad; 11, worm structure; 12, groove; 13, inlet opening; 14, horizontal fin; 15, longitudinal fin.
Embodiment
Below in conjunction with accompanying drawing and embodiment, the present invention is described in further detail.
As depicted in figs. 1 and 2, the material of the pump housing 1 of the present invention, pump cover 7 and pump shaft 8 is cast steel, under the prerequisite controlling cost of material, ensure that the mechanical strength of water ring vaccum pump.Pump shaft 8 is set with impeller 2, disk 6 is set at the two ends of impeller 2, fusion pressure polyvinylidene fluoride lining 9 on the inwall of the pump housing 1 and pump cover 7; The pump shaft 8 at impeller 2 two ends is set with axle sleeve 4, and disk 6, axle sleeve 4 and impeller 2 are shaping by polyvinylidene fluoride fusion pressure, and because polyvinylidene fluoride has higher melt viscosity, its moulded products has good mechanical strength and toughness; And in wider temperature range, not by acid, alkali, strong oxidizer and halogen corrode, there is good stability, therefore effectively can strengthen the wear-resistant, corrosion-resistant of water ring vaccum pump and shock resistance, and solve the problem that impeller 2 easily cavitates when high vacuum; Adopt fusion pressure preparation process, polyvinylidene fluoride can be made to stick on metallic shell wall closely, securely, improve its impact resistance further, overcome the caducous drawback of lining in prior art.As shown in Figure 3, axle sleeve 4 one end is equipped with the wheel hub of impeller 2 mutually by worm structure 11, the other end connects the locking nut 5 be fitted on pump shaft 8, the wheel hub of impeller 2 is made to be screwedly mounted on axle sleeve 4, and under the locking effect of locking nut 5, make together with the thread joint face between the wheel hub of impeller 2 with axle sleeve 4 fits tightly, form multiple sealing surface, effectively improve the antiseptic power of pump shaft 8, thus achieve the comprehensively anticorrosion of water ring vaccum pump.
For improving impeller 2 in the process of work, intact fixing on pump shaft 8, impeller 2 for pump shaft 8 is installed trepanning in steel bushing 3 is set, as shown in Figure 4, the outer wall of steel bushing 3 is wound with ring-type horizontal fin 14 and along the axial arranged longitudinal fin 15 of steel bushing 3, impeller 2 fusion pressure, on steel bushing 3, makes impeller 2 be arranged on pump shaft 8 by steel bushing 3, solve metal contact with nonmetal and when Forced rotation, cause the problem of impeller 2 scroll key because intensity is different.Meanwhile, horizontal fin 14 and longitudinal fin 15 achieve comprehensive fastening on steel bushing 3 of impeller 2, avoid the phenomenon departing from steel bushing 3 and cisco unity malfunction in impeller 2 working procedure under the effect of impact force.
And between axle sleeve 4 and impeller 2, adding polytetrafluoroethylsealed sealed pad 10, polytetrafluoroethylsealed sealed pad 10 is sleeved on pump shaft 8, adds the anti-corrosive properties defence line of one pump shaft 8, further increases the antiseptic property of pump shaft 8.As shown in Figure 5, the wheel hub end wall of impeller 2 offers annular groove 12, on disk 6 inlet opening 13 to offer position corresponding with groove 12, be opened in compared with the corresponding position of inlet opening 13 in pump cover 7 with inlet opening in prior art 13, change the circulating path of water liquid in vacuum pump, water liquid is thrown away along impeller 2 radial direction under the influence of centrifugal force, alleviates the percussion of water liquid to impeller 2, extend the working life of impeller 2.
The above is only preferred embodiment of the present invention, and be not restriction the present invention being made to other form, any those skilled in the art may utilize the technology contents of above-mentioned announcement to be changed or be modified as the Equivalent embodiments of equivalent variations.But everyly do not depart from technical solution of the present invention content, any simple modification, equivalent variations and the remodeling done above embodiment according to technical spirit of the present invention, still belong to the protection domain of technical solution of the present invention.
Claims (1)
1. a wide spectrum corrosion resistance water ring vaccum pump, comprises the pump housing of metal material, pump cover and pump shaft, pump shaft is set with impeller, and the two ends of impeller arrange disk, it is characterized in that: fusion pressure polyvinylidene fluoride lining on the inwall of the pump housing and pump cover;
The pump shaft at impeller two ends is set with axle sleeve, and disk, axle sleeve and impeller are shaping by polyvinylidene fluoride fusion pressure, and axle sleeve one end is by wheel hub mutually equipped, the other end connecting lock jack panel of worm structure with impeller, and locking nut is fitted on pump shaft;
Impeller for pump shaft is installed trepanning in steel bushing is set, the outer wall of steel bushing is wound with ring-type horizontal fin and along the axial arranged longitudinal fin of steel bushing, impeller fusion pressure is on steel bushing;
Add polytetrafluoroethylsealed sealed pad between axle sleeve and impeller, polytetrafluoroethylsealed sealed cushion cover is contained on pump shaft; The wheel hub end wall of impeller offers annular groove, on disk inlet opening to offer position corresponding with groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310003114.7A CN103047153B (en) | 2013-01-06 | 2013-01-06 | Broad-spectrum corrosion-resistant water ring vacuum pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310003114.7A CN103047153B (en) | 2013-01-06 | 2013-01-06 | Broad-spectrum corrosion-resistant water ring vacuum pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103047153A CN103047153A (en) | 2013-04-17 |
| CN103047153B true CN103047153B (en) | 2015-04-15 |
Family
ID=48059936
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310003114.7A Active CN103047153B (en) | 2013-01-06 | 2013-01-06 | Broad-spectrum corrosion-resistant water ring vacuum pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103047153B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105402104B (en) * | 2015-12-16 | 2018-02-13 | 淄博华舜耐腐蚀真空泵有限公司 | A kind of mechanical seal structure of mechanical sealing member and vavuum pump |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2350573Y (en) * | 1998-04-17 | 1999-11-24 | 宜兴市宙斯泵用密封研究所 | Improved wear-resistant water-ring vacuum pump |
| CN200940597Y (en) * | 2006-08-16 | 2007-08-29 | 季裕成 | Novel thin acid pump |
| CN200961584Y (en) * | 2006-10-18 | 2007-10-17 | 淄博水环真空泵厂有限公司 | Super big water ring vacuum pump |
| CN101251125A (en) * | 2008-04-03 | 2008-08-27 | 湖北同方高科泵业有限公司 | Corrosion resistant water ring vacuum pump |
| CN201288829Y (en) * | 2008-11-13 | 2009-08-12 | 宁波方力密封件有限公司 | Mechanical sealing device |
| CN201475033U (en) * | 2009-08-05 | 2010-05-19 | 宁波精科机械密封件制造有限公司 | Sealing device for stainless steel centrifugal pump |
| CN201827090U (en) * | 2010-04-26 | 2011-05-11 | 百鸿国际机械(上海)有限公司 | Corrosion-resistant all-plastic glandless vertical submerged pump |
| CN202520579U (en) * | 2012-02-09 | 2012-11-07 | 四川新达泵业有限责任公司 | Water-ring type vacuum pump |
-
2013
- 2013-01-06 CN CN201310003114.7A patent/CN103047153B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2350573Y (en) * | 1998-04-17 | 1999-11-24 | 宜兴市宙斯泵用密封研究所 | Improved wear-resistant water-ring vacuum pump |
| CN200940597Y (en) * | 2006-08-16 | 2007-08-29 | 季裕成 | Novel thin acid pump |
| CN200961584Y (en) * | 2006-10-18 | 2007-10-17 | 淄博水环真空泵厂有限公司 | Super big water ring vacuum pump |
| CN101251125A (en) * | 2008-04-03 | 2008-08-27 | 湖北同方高科泵业有限公司 | Corrosion resistant water ring vacuum pump |
| CN201288829Y (en) * | 2008-11-13 | 2009-08-12 | 宁波方力密封件有限公司 | Mechanical sealing device |
| CN201475033U (en) * | 2009-08-05 | 2010-05-19 | 宁波精科机械密封件制造有限公司 | Sealing device for stainless steel centrifugal pump |
| CN201827090U (en) * | 2010-04-26 | 2011-05-11 | 百鸿国际机械(上海)有限公司 | Corrosion-resistant all-plastic glandless vertical submerged pump |
| CN202520579U (en) * | 2012-02-09 | 2012-11-07 | 四川新达泵业有限责任公司 | Water-ring type vacuum pump |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103047153A (en) | 2013-04-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104315185A (en) | Double-scraper ultra-hard sealing ball valve | |
| CN103047153B (en) | Broad-spectrum corrosion-resistant water ring vacuum pump | |
| CN103307029A (en) | Novel wear-resistant and corrosion-resistant chemical centrifugal pump | |
| CN102588602B (en) | centrifuge bearing composite sealing device | |
| CN202560557U (en) | Circumferential local asymmetrical side plate for gear oil pump | |
| CN204349663U (en) | Insulated bearing sleeve used for motor | |
| CN206092485U (en) | Water pump of wear -resisting pump axle and applied this pump shaft | |
| CN206845521U (en) | Corrosion-resistant single-stage list pump chamber water ring vacuum pump | |
| CN204533565U (en) | The hard seal butterfly valve of valve with changeable valve seat | |
| CN206770267U (en) | A kind of small flow and high lift pump | |
| CN206329497U (en) | A kind of preposition booster pump of end odd test | |
| CN204852740U (en) | Large -scale wear -resisting channel bend that transports | |
| CN206334734U (en) | A kind of heat sink of size reduction machinery | |
| CN204829121U (en) | Acidproof wear -resisting high temperature resistant multiple composite pipe | |
| CN104121202B (en) | The high rotating speed centrifugal water-injection pump of steady formula | |
| CN202560646U (en) | Abrasion resistant slurry pump | |
| WO2017016078A1 (en) | Corrosion-resistant spindle structure | |
| CN203836212U (en) | Mill sealing structure capable of effectively reducing ore pulp leakage and circulation abrasion | |
| CN202117970U (en) | Novel chemical centrifugal pump | |
| CN204099213U (en) | Steady formula height rotating speed centrifugal water-injection pump | |
| CN218123818U (en) | Power line interface disjunctor formula sealing washer | |
| CN209586762U (en) | A kind of water centrifugal pump leakproof axle sleeve | |
| CN202520565U (en) | Novel wear-resisting and corrosion-resisting chemical centrifugal pump | |
| CN108150427A (en) | A kind of preposition booster pump of end odd test | |
| CN206468922U (en) | From the climing ceramic steel pipe of combustion anticentripetal composite abrasion-proof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |