CN203023116U - Vertical type single-stage and single-suction chemical centrifugal pump - Google Patents
Vertical type single-stage and single-suction chemical centrifugal pump Download PDFInfo
- Publication number
- CN203023116U CN203023116U CN 201220703276 CN201220703276U CN203023116U CN 203023116 U CN203023116 U CN 203023116U CN 201220703276 CN201220703276 CN 201220703276 CN 201220703276 U CN201220703276 U CN 201220703276U CN 203023116 U CN203023116 U CN 203023116U
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- CN
- China
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- bearing
- pump
- impeller
- pump cover
- chemical centrifugal
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- Expired - Fee Related
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Abstract
The utility model belongs to the field of chemical centrifugal pump devices and particularly relates to a vertical type single-stage and single-suction chemical centrifugal pump which comprises a pump body. A back-open type impeller is arranged inside the pump body, a pump cover is installed on the upper portion of the back-open type impeller, a cone-shaped sealing cavity is formed inside the pump cover, and convex liquid guiding blocks are uniformly distributed on the inner wall of the cone-shaped sealing cavity. A rigid rack is arranged on the upper portion of the pump body, a bracket is arranged inside the rigid rack, a bearing body is installed on the upper portion of the bracket, and a bearing adjusting gland is arranged on the upper portion of the bearing body. a transmission shaft which penetrates through the bearing adjusting gland, the bearing body, the bracket and the pump cover is arranged, and the back-open type impeller is fastened with the transmission shaft through bolts. The vertical type single-stage and single-suction chemical centrifugal pump has the advantages that due to the fact that a vertical type structure is adopted, the bearing body can be lubricated by grease, the grease can be easily kept inside a bearing and can avoid influence of dust and moisture on the bearing, and the structure is economical and reliable; due to the fact that the impeller is fastened with the transmission shaft through the bolts, stable operation can be ensured; due to arrangement of the bearing adjusting gland, the gap between the pump cover and the impeller can be adjusted; and the vertical type single-stage and single-suction chemical centrifugal pump is convenient to operate.
Description
Technical field
The utility model relates to a kind of vertical single stage single suction chemical centrifugal pump, belongs to chemical centrifugal pump device field.
Background technique
The conventional pumps impeller adopts closed type structure, easily causes the wearing and tearing of back shroud of impeller when carrying the medium that solid particle is arranged, and easily causes the impeller locknut to come off during the equipment counter-rotating; The pump cover Seal cage is cylindrical, makes the flow direction of seal flush liquid for moving around axial flow, easily makes the impurity damage seal face in medium; Existing pump is when the gap of regulating between impeller and pump cover, dismantle pump, increased the maintenance cost of pump, and in the middle of pump, linkage section adopts the material identical with the pump housing, when carrying strong corrosive medium, the phenomenon of bearing bracket stand fracture easily appears causing due to the dielectric leakage corrosion; Motor rack is connected with bearing bracket stand, and motor weight, vibrations are directly delivered on bearing bracket stand, affects the steady running of pump.
The model utility content
The technical problems to be solved in the utility model is: a kind of compact structure is provided, and conveniently the gap between adjustment pump cover and impeller, reliable, and can reduce the vertical single stage single suction chemical centrifugal pump of maintenance cost.
the utility model is that the technological scheme that its technical problem of solution adopts is: described vertical single stage single suction chemical centrifugal pump, it is characterized in that: comprise the pump housing, back of the body unshrouded impeller is set in the pump housing, back of the body unshrouded impeller top is equipped with pump cover, pump cover inside arranges the cone seal chamber, be evenly distributed with the baffle of projection on the cone seal cavity wall, pump cover top arranges rigid mounting, carriage is set in rigid mounting, bearing support is installed on carriage top, bearing support top arranges bearing and adjusts gland, run through bearing and adjust gland, bearing support, carriage and pump cover are provided with transmission shaft, back of the body unshrouded impeller is fastening by bolt and transmission shaft.
Whole device is vertical vertical structure, and bearing support adopts grease lubrication, and grease easily remains in bearing, and grease can also prevent dust, moisture to the impact of bearing, and structure economics is reliable; Impeller adopts back of the body unshrouded impeller, and fastening by bolt and transmission shaft, can make back of the body unshrouded impeller in use, stable, back of the body unshrouded impeller connects pump cover, the pump cover cover plate becomes wear surface, can readjust by bearing gland after wearing and tearing, has and repeats the property adjusted, balancing axial thrust to greatest extent, and can well guarantee the pressure of Seal cage, and the service condition that guarantees sealing is all the time in optimum range, thus the working life of improving sealing and bearing; Seal cage is taper, and be provided with baffle, the flow direction that can make seal flush liquid flows by changing into around axle vertically, and flow and the Seal cage pressure drop of balance can make impurity in medium away from seal face, thereby impurity is reduced to minimum to the erosion of seal face; Adopt rigid electric rack construction, and bearing support to be positioned at the rigid electric frame inner, motor weight, vibrations are not directly delivered on bearing bracket stand, can well guarantee the run stability of pump; Bearing is adjusted the setting of gland, can externally adjust accurately the gap between impeller and pump cover in the situation that do not dismantle centrifugal pump, just can adjust pump performance in the situation that do not need to change component, has simplified greatly maintenance process, the reduction maintenance cost.
The bigger diameter end face in described cone seal chamber is and the end face that contacts of carrying on the back unshrouded impeller.Realize that easily seal flush liquid flows vertically.
In addition, bearing support can be selected the material different from carriage, and namely carriage adopts wherein a kind of such as cast iron, cast steel, stainless steel or fluoroplastic, and bearing support is just selected another in above-mentioned material.This kind mode can increase bulk strength and corrosion resistance, guarantees when carrying strong corrosive medium, the phenomenon of bearing bracket stand fracture can not occur causing due to the dielectric leakage corrosion, has increased Security and the life-span of pump running.
The beneficial effects of the utility model are:
Compact structure adopts vertical structure, and bearing support can adopt grease lubrication, and grease easily remains in bearing, and grease can also prevent dust, moisture to the impact of bearing, and structure economics is reliable; Impeller is fastening by bolt and transmission shaft, can guarantee to operate steadily; Bearing is adjusted the setting of gland, can regulate the gap between pump cover and impeller, and is easy to operate; The setting in cone seal chamber can be protected seal face, increases the service life.
Description of drawings
Fig. 1 is structural representation of the present utility model.
In figure: 1, rigid mounting 2, bearing are adjusted gland 3, transmission shaft 4, bearing support 5, carriage 6, baffle 7, pump cover 8, cone seal chamber 9, bolt 10, back of the body unshrouded impeller 11, the pump housing.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described further:
as shown in Figure 1, vertical single stage single suction chemical centrifugal pump described in the utility model, comprise the pump housing 11, the interior back of the body unshrouded impeller 10 that arranges of the pump housing 11, back of the body unshrouded impeller 10 tops are equipped with pump cover 7, pump cover 7 inside arrange cone seal chamber 8, be evenly distributed with the baffle 6 of projection on 8 inwalls of cone seal chamber, pump cover 7 tops arrange rigid mounting 1, the interior carriage 5 that arranges of rigid mounting 1, bearing support 4 is installed on carriage 5 tops, bearing support 4 tops arrange bearing and adjust gland 2, run through bearing and adjust gland 2, bearing support 4, carriage 5 and pump cover 7 are provided with transmission shaft 3, back of the body unshrouded impeller 10 is fastening by bolt 9 and transmission shaft 3.
During work, motor is arranged on rigid mounting 1, motor drives back of the body unshrouded impeller 10 by transmission shaft 3 and rotates, complete entering and flowing out of fed sheet of a media under the effect of back of the body unshrouded impeller 10 and the pump housing 11, in using process, pump cover 7 is wear surface with the surface of contact of back of the body unshrouded impeller 10, and after wearing and tearing, adjusting bearing adjustment gland 2 can be regulated the gap between pump cover 7 and back of the body unshrouded impeller 10.
Claims (2)
1. vertical single stage single suction chemical centrifugal pump, it is characterized in that: comprise the pump housing (11), back of the body unshrouded impeller (10) is set in the pump housing (11), back of the body unshrouded impeller (10) top is equipped with pump cover (7), pump cover (7) inside arranges cone seal chamber (8), be evenly distributed with the baffle (6) of projection on the inwall of cone seal chamber (8), pump cover (7) top arranges rigid mounting (1), carriage (5) is set in rigid mounting (1), bearing support (4) is installed on carriage (5) top, bearing support (4) top arranges bearing and adjusts gland (2), run through bearing and adjust gland (2), bearing support (4), carriage (5) and pump cover (7) are provided with transmission shaft (3), back of the body unshrouded impeller (10) is fastening by bolt (9) and transmission shaft (3).
2. vertical single stage single suction chemical centrifugal pump according to claim 1 is characterized in that: the bigger diameter end face in cone seal chamber (8) be and back of the body unshrouded impeller (10) contact end face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220703276 CN203023116U (en) | 2012-12-18 | 2012-12-18 | Vertical type single-stage and single-suction chemical centrifugal pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220703276 CN203023116U (en) | 2012-12-18 | 2012-12-18 | Vertical type single-stage and single-suction chemical centrifugal pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203023116U true CN203023116U (en) | 2013-06-26 |
Family
ID=48647105
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220703276 Expired - Fee Related CN203023116U (en) | 2012-12-18 | 2012-12-18 | Vertical type single-stage and single-suction chemical centrifugal pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203023116U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105927558A (en) * | 2016-07-06 | 2016-09-07 | 中国水利水电第十四工程局有限公司 | Non-water starting debugging method for large vertical type single-level and single-suction centrifugal water pump |
| CN111622980A (en) * | 2020-04-23 | 2020-09-04 | 宁波巨神制泵实业有限公司 | Mechanical seal foreign matter abrasion-proof structure |
-
2012
- 2012-12-18 CN CN 201220703276 patent/CN203023116U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105927558A (en) * | 2016-07-06 | 2016-09-07 | 中国水利水电第十四工程局有限公司 | Non-water starting debugging method for large vertical type single-level and single-suction centrifugal water pump |
| CN111622980A (en) * | 2020-04-23 | 2020-09-04 | 宁波巨神制泵实业有限公司 | Mechanical seal foreign matter abrasion-proof structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130626 Termination date: 20151218 |
|
| EXPY | Termination of patent right or utility model |