CN87202820U - Corrosion-resistance sealed centrifugal pump - Google Patents
Corrosion-resistance sealed centrifugal pump Download PDFInfo
- Publication number
- CN87202820U CN87202820U CN 87202820 CN87202820U CN87202820U CN 87202820 U CN87202820 U CN 87202820U CN 87202820 CN87202820 CN 87202820 CN 87202820 U CN87202820 U CN 87202820U CN 87202820 U CN87202820 U CN 87202820U
- Authority
- CN
- China
- Prior art keywords
- pump
- seal ring
- impeller
- main shaft
- pump cover
- 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.)
- Ceased
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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model mainly makes the shaft seal device between a main shaft and a pump cover arranged at the suction side of an impeller. The shaft seal device adopts the corrugated sealing ring to realize the seal, and the pump cover is screwed tightly with a sealing cover, which ensures the fluid not leak out, and eliminates the environmental pollution generated by the pump in the process of working. The utility model has the characteristics of simple structure, easy fabrication, obvious energy saving, small noise, safe operation, time saving and labor saving of installation and maintenance, etc. Besides, the utility model is suitable for pumping various non-corrosive fluid media.
Description
The utility model is a kind of novel corrosion resistant sealing centrifugal pump, belongs to the F04D class.
Conventional centrifugal pump, it is by bearing support (6), die holder (7), main shaft Lower shaft sleeve (8), seal ring (12), nut (13), safety washer (14), pump case (15), impeller (16), pump cover (17), inner seal ring (18), sealing gasket (19), main shaft (22), punch holder support formations such as (24), main shaft (22) passes pump cover (17) from extruding side, connects with motor (27).When main shaft (22) passes pump cover (17), between axle and lid, there is the gap, gappedly just has a leakage.The general at present axle envelope means that adopt are stuffing boxes that " gland packing type " is set.It is by the axle big envelope, water sealing (sealing water) pipe, and five parts such as seal cage and gland are formed.This gland seal device places the extrusion side of impeller, during pump work, for filler cooling and lubricated needs, require pump in the whole service process, there are a considerable amount of high-pressure liquids can leak continuously along axle envelope place, often need to adjust the elasticity that gland nut is regulated filler, control the outer discharge of certain fluid; Simultaneously, the workshop of pump operation requires to have ground release fluid facility.For many years, for carrying acidity, alkalescence or having in the workshop of corrosive other flowing medium, when using the centrifugal pump work of this shaft seal structure, mill floor is subjected to water clock to run the flow-induced corrosion of letting out, make environmental deterioration, this is for a long time, the anxious always problem that will solve of needing badly in industries such as chemical industry, light industry, smelting, medicine.
The purpose of this utility model is to avoid above-mentioned deficiency, and a kind of novel corrosion resistant sealing centrifugal pump is provided.
Solution of the present utility model is the suction side that the gland seal device between main shaft and the pump cover places impeller, gland seal device adopts the ripple seal ring to realize sealing, and on pump cover, tighten with sealing gland, thereby guarantee that fluid does not leak, eliminated the pollution that pump is produced in the course of the work environment.
The utility model is by bearing support, die holder, main shaft Lower shaft sleeve, seal ring, nut, safety washer, pump case, impeller, pump cover, inner seal ring, sealing gasket, main shaft, formations such as punch holder support is characterized in that gland seal device between main shaft and the pump cover places the suction side of impeller, and gland seal device adopts the ripple seal ring to realize sealing, and on pump cover, tighten with sealing gland, thereby guarantee that fluid does not leak, eliminated the pollution that pump is produced in the course of the work to environment.Pump case, impeller, pump cover adopt the resin glass fibre reinforced plastics molding.Inner seal ring adopts the Expanded graphite seal ring.Pump connects the vertical direct connection of employing with motor, support adopts 3 movable pin support plinths.
Fig. 1 is a half sectional view of the present utility model.
Below in conjunction with accompanying drawing the utility model is elaborated.
The utility model as shown in Figure 1, it is by bearing support (6), die holder (7), main shaft Lower shaft sleeve (8), seal ring (12), nut (13), safety washer (14), pump case (15), impeller (16), pump cover (17), inner seal ring (18), sealing gasket (19), main shaft (22), punch holder support formations such as (24), it is characterized in that gland seal device between main shaft (22) and the pump cover (17) places the suction side of impeller (16), gland seal device adopts ripple seal ring (20) to realize sealing, and upward tightens with sealing gland (21) at pump cover (17), thereby guarantees that fluid does not leak.Because the gland seal device between main shaft (22) and the pump cover (17) is inserted the suction side of impeller (16), thereby to the pressure minimizing that axle seals, simplified the structure of seal arrangement like this, simultaneously, ripple seal ring (20) adopts fluorine rubber once molding formed.Thereby have advantages such as heat-resisting, decay resistance and incompressible permanent modification, and be easy to processing and compression molding.Pump case of the present utility model (15), impeller (16), pump cover (17) all adopts the resin glass fibre reinforced plastics molding, and the time processing moulding need not to remake fine finishing.Pump case (15), impeller (16), the fluid of pump cover (17) is through any surface finish, and internal resistance is little, and glass fibre reinforced plastics has intensity height, characteristics such as heat-resisting, corrosion-resistant.Inner seal ring (18) adopts the Expanded graphite seal ring, this Expanded graphite adopts common pure graphite to pass through oxidation processes, form compound between graphite layers, then, carrying out transient heat handles, graphite layers is expanded, and the volume after the expansion can reach 80～200 times of former graphite volume, has decay resistance preferably.The pump housing connects the vertical direct connection of employing with motor, support adopts 3 movable pin support plinths, need not to do in addition the basis in the use, compact structure, and installation and maintenance are very convenient.Main shaft (22) adopts stainless steel machine shaping, leg (1), bearing support (6), die holder (7), sealing gland (21) is regulated clamping plate (23), punch holder support available metals such as (24) is processed into bolt, nut, packing ring, motor buyable standard piece routinely.
The utility model is because the gland seal device between main shaft (22) and pump cover (17) places the suction side of impeller (16), gland seal device adopts ripple seal ring (20) to realize sealing, and on pump cover (17), tighten with sealing gland (21), thereby guarantee that fluid does not leak, eliminated the pollution that is produced in the pump work process environment.The entire pump body structure is simple, and is in light weight, easy to process, and cost is low, and simultaneously, this pump has remarkable energy-saving performance, and noise is little, and is safe and reliable to operation, installs and overhauls characteristics such as time saving and energy saving, also is suitable for taking out the various non-corrosive fluids media of liter.
The drawing reference numeral explanation:
(1)---movable pin supporting; (2)---bolt;
(3)---packing ring; (4)---double-screw bolt;
(5)---packing ring; (6)---bearing support;
(7)---die holder; (8)---the main shaft Lower shaft sleeve;
(9)---bolt; (10)---nut;
(11)---packing ring; (12)---seal ring;
(13)---nut; (14)---safety washer;
(15)---pump case; (16)---impeller;
(17)---pump cover; (18)---inner seal ring;
(19)---sealing gasket; (20)---the ripple seal ring;
(21)---sealing gland; (22)---main shaft;
(23)---regulate and hold plate under the arm; (24)---the punch holder support;
(25)---packing ring; (26)---bolt;
(27)---motor.
Claims (5)
1, a kind of novel corrosion resistant sealing centrifugal pump, it is by bearing support [6], die holder [7], main shaft Lower shaft sleeve [8], seal ring [12], nut [13], locking gasket [14], pump case [15], impeller [16], pump cover [17], inner seal ring [18], sealing gasket [19], main shaft [22], punch holder support formations such as [24] of the present utility modelly is characterised in that the gland seal device between main shaft [22] and the pump cover [17] places the suction side of impeller [16], gland seal device adopts ripple seal ring [20] to realize sealing, and upward tightens with sealing gland [21] at pump cover [17].
2, novel corrosion resistant sealing centrifugal pump according to claim 1 is characterized in that pump case (15), impeller (16), pump cover (17) adopt the resin glass fibre reinforced plastics molding.
3, according to claim 1,2 described novel corrosion resistant sealing centrifugal pumps, it is characterized in that inner seal ring (18) adopts the Expanded graphite seal ring.
4, according to claim 1,2 described novel corrosion resistant sealing centrifugal pumps, it is characterized in that pump connects the vertical direct connection of employing with motor (27), support adopts 3 movable pin supporting (1) bases.
5, novel corrosion resistant sealing centrifugal pump according to claim 3 is characterized in that pump connects the vertical direct connection of employing with motor (27), and support adopts 3 movable pin supporting (1) bases.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 87202820 CN87202820U (en) | 1987-03-03 | 1987-03-03 | Corrosion-resistance sealed centrifugal pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 87202820 CN87202820U (en) | 1987-03-03 | 1987-03-03 | Corrosion-resistance sealed centrifugal pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN87202820U true CN87202820U (en) | 1987-11-04 |
Family
ID=4818896
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 87202820 Ceased CN87202820U (en) | 1987-03-03 | 1987-03-03 | Corrosion-resistance sealed centrifugal pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN87202820U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1065325C (en) * | 1998-02-17 | 2001-05-02 | 鄢平安 | High speed centrifugal pump |
| CN106401984A (en) * | 2016-12-05 | 2017-02-15 | 合肥俊刚机械科技有限公司 | Agricultural intelligent single-suction vertical centrifugal water pump |
-
1987
- 1987-03-03 CN CN 87202820 patent/CN87202820U/en not_active Ceased
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1065325C (en) * | 1998-02-17 | 2001-05-02 | 鄢平安 | High speed centrifugal pump |
| CN106401984A (en) * | 2016-12-05 | 2017-02-15 | 合肥俊刚机械科技有限公司 | Agricultural intelligent single-suction vertical centrifugal water pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C35 | Partial or whole invalidation of patent or utility model | ||
| IW01 | Full invalidation of patent right |
Invalid declaration decision word first: 30 |
|
| C17 | Cessation of patent right | ||
| CE01 | Termination of patent right |