CN204755409U - Improved generation plastic pump - Google Patents
Improved generation plastic pump Download PDFInfo
- Publication number
- CN204755409U CN204755409U CN201520389229.9U CN201520389229U CN204755409U CN 204755409 U CN204755409 U CN 204755409U CN 201520389229 U CN201520389229 U CN 201520389229U CN 204755409 U CN204755409 U CN 204755409U
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- pump
- impeller
- pump shaft
- protecgulum
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Abstract
The utility model provides an improved generation plastic pump which mainly is: the flow passage components pump body, protecgulum, hou gai, impeller, impeller nut and the flowing back plug screw of this plastic pump all adopt PP or PVDE plastic materials, and all the other parts are the metalwork. Wherein, the impeller is established to the fluid issuing was established to the perisporium pump body intracavity, and the protecgulum is established to the impeller front portion, is equipped with the front plate in the protecgulum outside, and the impeller rear portion is equipped with the back lid, is equipped with the back splint in the outside of back lid around, splint link to each other to form and press from both sides the cover through establishing company's board in they neighborings. The central through hole is established to the impeller, downthehole inlay the cover on the pump shaft and with the metal lining of pump shaft key -type connection, the limiting plate is established to pump shaft and inside lining front end, its by the fix with screw at the pump shaft front end, be equipped with the impeller nut rather than threaded connection on the central screw of limiting plate front end. The horizontally pump shaft passes back lid, middle bracket and bearing box by preceding ranging back in proper order, and stretch outside the bearing box rear end. The utility model discloses move that stable, with low costs, application range is wide, resistant strong acid, alkali solution corrode again.
Description
Technical field the utility model relates to a kind of centrifugal pump, especially for the centrifugal pump of the various severe corrosive strong acid of conveying, strong base solution.
Background technique strong acid, strong base solution are generally applied in steel-making, chemical industry and coal chemical industry, because the severe corrosive of strong acid, highly basic, so carry its metal pump material usually to adopt expensive No. 20 alloys, if strong acid, the highly basic temperature of conveying raise slightly, then require higher to the material of pump, even to adopt the Hastelloy that price is more expensive or titanium material, drastically increase pump cost.Although the resistance to strong acid of existing plastic pump, alkali corrosion, often there is the situations such as bearer distortion and parts depreciation in scene, causes using scope narrower.
Summary of the invention the purpose of this utility model is to provide that a kind of not only cost is low, using scope extensively but also resistance to strong acid, strong base solution corrosion modified model plastic pump.The utility model mainly flow passage components adopts the plastic materials such as PP, PVDE, and establishes metal reinforced outside yielding flow passage components.
The utility model mainly comprises chuck, the pump housing, protecgulum, bonnet, impeller, impeller nut, pump shaft, shaft seal assembly and bearing housing.The flow passage components pump housing of this plastic pump, protecgulum, bonnet, impeller, impeller nut and discharge opeing plug screw all adopt PP or PVDE plastic materials, and remaining part is metalwork.Wherein, annular pump housing perisporium is established in fluid output, chamber and is established impeller, and impeller front portion is provided with protecgulum that is corresponding with it and that be installed on the front pump housing, and the central through bore of this protecgulum is liquid entering hole.Outside protecgulum, be provided with annular front plate protecgulum and pump housing exposed parts covered, this front plate is provided with the fastening piece be connected with protecgulum by this front plate near central through bore position.Impeller rear portion is provided with bonnet that is corresponding with it and that be installed on the rear pump housing, and be provided with the rear plate covered in bonnet local and pump housing exposed parts in the outside of this bonnet, this rear plate is fixedly connected with arch intermediate bracket front end.Above-mentioned front and back clamping plate are connected to form chuck by the connecting plate being located at their outer peripherys, the pump housing and front and rear covers can be clamped, locate, form an entirety, the ability of impacting with the bearing capacity and resistant to liquids that improve this pump.Be provided with axis and that with impeller cavity be communicated with discharge opeing through hole parallel with pump shaft in above-mentioned front plate, protecgulum and pump housing bottom, establish nonmetal discharge opeing plug screw in it, between this discharge opeing plug screw and discharge opeing through hole, establish Sealing.Above-mentioned impeller can adopt double shrouded wheel and semi-open type structure, and closed type structure fed sheet of a media efficiency is high, is applicable to cleaning medium, and semi-open type structure facilitates the conveying of band granule medium, avoids particle to enter gap and causes damage in impeller.Impeller establishes central through bore, the metal inner lining that in hole, mosaic set is connected on pump shaft and with pump shaft key, this liner is made up of the bulge loop on pipe and its outer circumferential face, limiting board is established in pump shaft and liner front end, it is fixed on pump shaft front end by screw, and the center screw of limiting board front end is provided with the impeller nut be threaded with it.The pump shaft of level is by front extending back, and successively through bonnet, intermediate bracket and bearing housing, rear end reaches outside bearing housing.Be positioned at the pump shaft peripheral hardware axle sleeve at impeller rear portion, between itself and bonnet central through bore, be provided with shaft seal assembly.Be provided with Sealing in the middle of the arch intermediate bracket back-end central through hole contain above-mentioned shaft seal assembly and bonnet and pump shaft, the fluid of Leakage prevention enters bearing housing below.Intermediate bracket rear end is provided with corresponding with it and the bearing housing be connected is anterior, fore bearing room is provided with between itself and pump shaft, these fore bearing indoor are provided with bears the stronger roller bearing of radial capacity, rear bearing room is provided with between bearing housing rear portion and pump shaft, adopt when thrust load is less and bear that thrust load is less, centering better, more conveniently deep groove ball bearing is installed, when thrust load is larger, adopts and bear a pair larger angular contact ball bearing of thrust load.Separately be provided with the formula greasing hole, duct be communicated with front portion, fore bearing room on top, bearing housing fore bearing room, be provided with the Shi Paizhi hole, duct be communicated with rear portion, fore bearing room in bottom, fore bearing room.Be provided with at rear portion, bearing housing fore bearing room and be enclosed within pump shaft and the outer annular diameter gear alicyclic ring corresponding with bearing chamber diameter, discharge to prevent the grease gone bad.Flow passage components such as the pump housing, protecgulum, bonnet, impeller, impeller nut and the discharge opeing plug screw of this plastic pump all adopt the plastic materialss such as PP or PVDE, and remaining part is metalwork.
The utility model compared with prior art tool has the following advantages:
1 compares with all-plastic, and the pump housing is outer set jacket structured, effectively improves pump structure rigidity, reduces the amount of deformation of bearer, thus increase the using scope of pump.Existing plastic pump peak rate of flow is usually at about 200m3/h, and peak rate of flow can be risen to 800m3/h by the utility model; Serviceability temperature is increased between-20 DEG C to 120 DEG C;
2 compare with plastic lined pump, and adopt machinery type to clamp between chuck and the pump housing, pump cover, both are relative separation, there will not be the situation of separation when temperature variation; And for plastic lined pump, because plastics are different with the line strain coefficient of metal, both amount of deformation under identical temperature variation can be caused different, thus cause both to depart from, cause the damage of pump;
3, adopt " bag axle " structural design, stopped the possibility of pump shaft and medium contact completely, reduced the anticorrosion grade of pump shaft material, reduce pump cost, and selection intensity is high, good rigidly material, improves the performance of pump shaft;
4, pump shaft adopts stiff shaft design, reduces pump shaft amount of deflection, reduces the distortion of rotor, effectively prevent stators and rotators friction from causing the generation of damage parts; First critical speed is greater than more than 25% of working speed, effectively reduces vibration, improves the stability of rotor operation;
Accompanying drawing explanation
Fig. 1 is that master of the present utility model looks generalized section.
In figure: 1, chuck, 2, the pump housing, 3, protecgulum, 4, impeller, 5, impeller nut, 6, discharge opeing plug screw, 7, bonnet, 8, intermediate bracket, 9, shaft seal assembly, 10, greasing hole, 11, roller bearing, 12, gear alicyclic ring, 13, pump shaft, 14, fat hole is arranged, 15, bearing, 16, bearing housing, 17, liner, 18, limiting board, 19, axle sleeve.
Embodiment is looked in generalized section the master of the modified model plastic pump shown in Fig. 1, wherein, flow passage components such as the pump housing 2, protecgulum 3, bonnet 7, impeller 4, impeller nut 5 and discharge opeing plug screw 6 all adopt the plastic materialss such as PP, PVDE, and remaining part is metalwork.Annular pump housing perisporium is established in fluid output, chamber and is established impeller, and impeller front portion is provided with protecgulum that is corresponding with it and that be installed on the front pump housing, and the central through bore of this protecgulum is liquid entering hole.Outside protecgulum, be provided with annular front plate protecgulum and pump housing exposed parts covered, this front plate is provided with the fastening piece be connected with protecgulum by this front plate near central through bore position.Impeller rear portion is provided with bonnet that is corresponding with it and that be installed on the rear pump housing, and be provided with the rear plate covered in bonnet local and pump housing exposed parts in the outside of this bonnet, this rear plate is fixedly connected with arch intermediate bracket 8 front end.Above-mentioned front and back clamping plate are connected to form chuck 1 by the connecting plate being located at their outer peripherys.Be provided with axis and that with impeller cavity be communicated with discharge opeing through hole parallel with pump shaft in above-mentioned front plate, protecgulum and pump housing bottom, establish nonmetal discharge opeing plug screw in it, between this discharge opeing plug screw and discharge opeing through hole, establish Sealing.Impeller establishes central through bore, the metal inner lining 17 that in hole, mosaic set is connected on pump shaft and with pump shaft key, this liner is made up of the bulge loop on pipe and its outer circumferential face, limiting board 18 is established in pump shaft and liner front end, it is fixed on pump shaft front end by screw, and the center screw of limiting board front end is provided with the impeller nut be threaded with it.The pump shaft 13 of level is by front extending back, and successively through bonnet, intermediate bracket and bearing housing 16, rear end reaches outside bearing housing.Be positioned at the pump shaft peripheral hardware axle sleeve 19 at impeller rear portion, between itself and bonnet central through bore, be provided with shaft seal assembly 9.Sealing is provided with in the middle of the arch intermediate bracket back-end central through hole contain above-mentioned shaft seal assembly and bonnet and pump shaft.Intermediate bracket rear end is provided with corresponding with it and the bearing housing be connected is anterior, fore bearing room is provided with between itself and pump shaft, these fore bearing indoor are provided with bears the stronger roller bearing of radial capacity 11, is provided with rear bearing room, installs deep groove ball bearing 15 in it between bearing housing rear portion and pump shaft.Separately be provided with the formula greasing hole, duct 10 be communicated with front portion, fore bearing room on top, bearing housing fore bearing room, be provided with the Shi Paizhi hole, duct 14 be communicated with rear portion, fore bearing room in bottom, fore bearing room.Be provided with at rear portion, bearing housing fore bearing room and be enclosed within pump shaft and the outer annular diameter gear alicyclic ring 12 corresponding with bearing chamber diameter.
Claims (2)
1. a modified model plastic pump, it is characterized in that: the flow passage components pump housing of this plastic pump, protecgulum, bonnet, impeller, impeller nut and discharge opeing plug screw all adopt PP or PVDE plastic materials, remaining part is metalwork, wherein annular pump housing perisporium establishes fluid output, impeller is established in chamber, impeller front portion is provided with protecgulum that is corresponding with it and that be installed on the front pump housing, the central through bore of this protecgulum is liquid entering hole, annular front plate protecgulum and pump housing exposed parts covered is provided with outside protecgulum, this front plate is provided with the fastening piece be connected with protecgulum by this front plate near central through bore position, impeller rear portion is provided with bonnet that is corresponding with it and that be installed on the rear pump housing, the rear plate covered in bonnet local and pump housing exposed parts is provided with in the outside of this bonnet, this rear plate is fixedly connected with arch intermediate bracket front end, above-mentioned front and back clamping plate are connected to form chuck by the connecting plate being located at their outer peripherys, at above-mentioned front plate, protecgulum and pump housing bottom are provided with axis and that with impeller cavity be communicated with discharge opeing through hole parallel with pump shaft, nonmetal discharge opeing plug screw is established in it, Sealing is established between this discharge opeing plug screw and discharge opeing through hole, impeller establishes central through bore, the metal inner lining that in hole, mosaic set is connected on pump shaft and with pump shaft key, this liner is made up of the bulge loop on pipe and its outer circumferential face, limiting board is established in pump shaft and liner front end, it is fixed on pump shaft front end by screw, the center screw of limiting board front end is provided with the impeller nut be threaded with it, the pump shaft of level is by front extending back, successively through bonnet, intermediate bracket and bearing housing, rear end reaches outside bearing housing, be positioned at the pump shaft peripheral hardware axle sleeve at impeller rear portion, shaft seal assembly is provided with between itself and bonnet central through bore, Sealing is provided with in the middle of the arch intermediate bracket back-end central through hole contain above-mentioned shaft seal assembly and bonnet and pump shaft, intermediate bracket rear end is provided with corresponding with it and the bearing housing be connected is anterior, fore bearing room is provided with between itself and pump shaft, these fore bearing indoor are provided with roller bearing, rear bearing room is provided with between bearing housing rear portion and pump shaft.
2. modified model plastic pump according to claim 1, it is characterized in that: be provided with the formula greasing hole, duct be communicated with front portion, fore bearing room on top, bearing housing fore bearing room, be provided with the Shi Paizhi hole, duct be communicated with rear portion, fore bearing room in bottom, fore bearing room, be provided with at rear portion, bearing housing fore bearing room and be enclosed within pump shaft and the outer annular diameter gear alicyclic ring corresponding with bearing chamber diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520389229.9U CN204755409U (en) | 2015-06-08 | 2015-06-08 | Improved generation plastic pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520389229.9U CN204755409U (en) | 2015-06-08 | 2015-06-08 | Improved generation plastic pump |
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| Publication Number | Publication Date |
|---|---|
| CN204755409U true CN204755409U (en) | 2015-11-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520389229.9U Active CN204755409U (en) | 2015-06-08 | 2015-06-08 | Improved generation plastic pump |
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| CN (1) | CN204755409U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106837873A (en) * | 2016-12-12 | 2017-06-13 | 大连鹏华泵业制造有限公司 | Plastic vertical pump |
| CN107246409A (en) * | 2017-08-11 | 2017-10-13 | 安特洛(福安市)电机有限公司 | A kind of water pump |
| CN108443173A (en) * | 2018-05-11 | 2018-08-24 | 安徽凯特泵业有限公司 | Submerged pump |
| CN110594156A (en) * | 2019-09-23 | 2019-12-20 | 兑通真空技术(上海)有限公司 | Driving structure of three-axis multistage roots pump |
| CN110636937A (en) * | 2017-05-18 | 2019-12-31 | 捷太格特欧洲公司 | Method for locking plastic plug connector for plugging steering box by using ultrasonic wave |
-
2015
- 2015-06-08 CN CN201520389229.9U patent/CN204755409U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106837873A (en) * | 2016-12-12 | 2017-06-13 | 大连鹏华泵业制造有限公司 | Plastic vertical pump |
| CN110636937A (en) * | 2017-05-18 | 2019-12-31 | 捷太格特欧洲公司 | Method for locking plastic plug connector for plugging steering box by using ultrasonic wave |
| CN107246409A (en) * | 2017-08-11 | 2017-10-13 | 安特洛(福安市)电机有限公司 | A kind of water pump |
| CN107246409B (en) * | 2017-08-11 | 2023-04-28 | 安特洛(福安市)电机有限公司 | Water pump |
| CN108443173A (en) * | 2018-05-11 | 2018-08-24 | 安徽凯特泵业有限公司 | Submerged pump |
| CN110594156A (en) * | 2019-09-23 | 2019-12-20 | 兑通真空技术(上海)有限公司 | Driving structure of three-axis multistage roots pump |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |