CN106015016A - Circulating pump of efficient desulfurizing absorption tower - Google Patents
Circulating pump of efficient desulfurizing absorption tower Download PDFInfo
- Publication number
- CN106015016A CN106015016A CN201610626893.XA CN201610626893A CN106015016A CN 106015016 A CN106015016 A CN 106015016A CN 201610626893 A CN201610626893 A CN 201610626893A CN 106015016 A CN106015016 A CN 106015016A
- Authority
- CN
- China
- Prior art keywords
- impeller
- pump
- pump housing
- circulating pump
- absorption tower
- 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.)
- Pending
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D7/00—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts
- F04D7/02—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts of centrifugal type
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- 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
- F04D29/007—Details, component parts, or accessories especially adapted for liquid pumps
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- 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
Abstract
The invention provides a circulating pump of an efficient desulfurizing absorption tower. The circulating pump comprises a pump body, a rear pump cover, a vane wheel, a main shaft, a rear cover plate and a vane wheel gap automatic compensation device, wherein a liquid inlet is formed in the side wall of the pump body, and a liquid outlet is formed in the top; the rear pump cover is arranged on the side wall relative to an inlet; the vane wheel is arranged in the pump body; the main shaft penetrates through the rear pump cover and the rear cover plate, and is connected with the vane wheel through a key; the vane wheel gap automatic compensation device comprises an elastic component and an anti-abrasion plate, and is arranged between the pump body and the vane wheel; one end of the elastic component is fixed on the inner side wall of the pump body, and the other end of the elastic component is connected with the anti-abrasion plate; the anti-abrasion plate is connected with the vane wheel in a leaning manner; the rear cover plate is of a hollow cone structure, and a conical sealing cavity is formed between the rear cover plate and the rear pump cover; a mechanical sealing device is arranged between the rear pump cover and the pump body. The circulating pump is simple in structure, low in cost, high in efficiency and high in sealing property; the service life is long, and the production cost and the operation and maintenance cost are greatly reduced.
Description
Technical field
The invention belongs to fluid machines field, particularly to a kind of high-efficiency desulfurization absorption tower circulating pump, be mainly used in the large-scale coal-burning utilities such as Foundry Works, cement plant, paper mill, steel plant, chemical plant, thermal power plant.
Background technology
At present, desulfuration absorbing tower circulating pump is used widely in every profession and trade, plays vital effect in China's flue gas desulfurization industry.The medium mainly carried due to desulfuration absorbing tower is limestone-gypsum serosity, therefore the wear-resistant decay resistance of circulating pump is required higher, and domestic desulfuration absorbing tower circulating pump is due to the impact of each side factors such as the Hydraulic Design, structure design, the most inefficient, the life-span of mechanical seal and bearing is short, the abrasion-proof corrosion-proof poor performance of material, and product cost is higher.
Summary of the invention
Technical problem:Cause, due to wear parts abrasion, the defect that pump cannot normally work for existing desulfuration absorbing tower circulating pump, the invention provides a kind of high-efficiency desulfurization absorption tower circulating pump.
Technical scheme:A kind of high-efficiency desulfurization absorption tower circulating pump that the present invention provides, including the pump housing, rear pump cover, impeller, main shaft, back shroud, impeller clearance autocompensation installation；Described pump housing sidewall is provided with inlet, top is provided with liquid outlet, and described rear pump cover is located in import opposing sidewalls；Described impeller is located in the pump housing；Described main shaft is passed rear pump cover and back shroud and is connected with impeller by key；The autocompensation installation of described impeller clearance includes elastomeric element and wearing plate, and is located between the pump housing and impeller, and described elastomeric element one end is fixed on pump housing medial wall, and the other end is connected with wearing plate, and wearing plate is abutted against mutually with impeller；Described back shroud is the conical structure of hollow, forms cone seal chamber between itself and rear pump cover；It is provided with mechanically-sealing apparatus between described rear pump cover and the pump housing.
As improvement, also include fluid reservoir；Described fluid reservoir is located at bottom the pump housing, is provided with cutoff board between described fluid reservoir and the pump housing, and described fluid reservoir bottom is provided with tap hole, and described tap hole is provided with screw plug.
Improving as another kind, described impeller is half-opened impeller.
Improving as another kind, described key and impeller are connected by impeller holding screw.
Beneficial effect:The desulfuration absorbing tower circulating pump simple in construction, with low cost that the present invention provides, efficiency is high, good airproof performance, service life is long, avoid the desulfuration absorbing tower circulating pump caused due to damage of components and scrap problem, greatly reduce production and operation expense, improve the competitiveness of product in market.
Accompanying drawing explanation
Fig. 1 is the desulfuration absorbing tower circulating pump structure chart of the present invention.
Detailed description of the invention
Below inventive desulfurization absorption tower circulating pump is further illustrated.
High-efficiency desulfurization absorption tower circulating pump, is shown in Fig. 1, including the pump housing 1, rear pump cover 2, impeller 3, main shaft 4, back shroud 5, impeller clearance autocompensation installation, fluid reservoir 13.
The pump housing 1 sidewall is provided with inlet 11, top is provided with liquid outlet 12, and rear pump cover 2 is located in import 11 opposing sidewalls；Impeller 3 is located in the pump housing 1；Main shaft 4 is passed rear pump cover 2 and back shroud 5 and is connected with impeller 3 by key 6, and key 6 and impeller 3 are connected by impeller holding screw 16.
Impeller clearance autocompensation installation includes elastomeric element 7 and wearing plate 8, and is located between the pump housing 1 and impeller 3, and elastomeric element 7 one end is fixed on the pump housing 1 medial wall, and the other end is connected with wearing plate 8, and wearing plate 8 is abutted against with impeller 3 phase.It is provided with impeller clearance between the pump housing 1 and impeller 3 and automatically compensates equipment, one end of elastomeric element 7 is fixed on the pump housing 1, other end is fixed on wearing plate 8, gap 17 between wearing plate 8 and impeller 3 is compensated automatically by elastomeric element 7, when wearing plate 8 causes damaging because of abrasion and corrosion, it is promoted to move to impeller direction by elastomeric element 7, automatically the gap 17 that abrasion produces is compensated, ensure gap 17 fluctuation≤0.5mm in allowed band, the operating pressure making desulfuration absorbing tower circulating pump is stable, continues to run in high efficient area.The desulfuration absorbing tower circulating pump simple in construction that the present invention provides, the replaceable wearing plate when wearing plate damage causes gap unadjustable, maintenance cost is low, it is to avoid scraps problem owing to wearing plate damages the complete machine caused, improves work efficiency and the operational reliability of desulfuration absorbing tower circulating pump.
Back shroud 5 is the conical structure of hollow, forms cone seal chamber 9 between itself and rear pump cover 2；Mechanically-sealing apparatus 10 it is provided with between rear pump cover 2 and the pump housing 1.Impeller 2 is half-opened impeller.The present invention uses two ways to ensure that the sealing of the pump housing: one, formation cone seal chamber 9 between rear pump cover 2 and back shroud 5, cone seal chamber 9 is designed to big taper version；Its two, use mechanically-sealing apparatus 10；The present invention uses both the above mode, even if using the coolant of the outer mode also outside rinsing coolant seal face to be also difficult to enter in the pump housing 1, substantially increases the reliability of sealing and the service life of circulating pump.
Fluid reservoir 13 is located at bottom the pump housing 1, is provided with cutoff board 14 between fluid reservoir 13 and the pump housing 1, and fluid reservoir 13 bottom is provided with tap hole, and tap hole is provided with screw plug 15.
Claims (4)
1. a high-efficiency desulfurization absorption tower circulating pump, it is characterised in that: include the pump housing (1), rear pump cover (2), impeller (3), main shaft (4), back shroud (5), impeller clearance autocompensation installation；The described pump housing (1) sidewall is provided with inlet (11), top is provided with liquid outlet (12), and described rear pump cover (2) is located in import (11) opposing sidewalls；Described impeller (3) is located in the pump housing (1)；Described main shaft (4) is passed rear pump cover (2) and back shroud (5) and is connected with impeller (3) by key (6)；The autocompensation installation of described impeller clearance includes elastomeric element (7) and wearing plate (8), and be located between the pump housing (1) and impeller (3), described elastomeric element (7) one end is fixed on the pump housing (1) medial wall, the other end is connected with wearing plate (8), and wearing plate (8) is abutted against mutually with impeller (3)；Described back shroud (5) is the conical structure of hollow, forms cone seal chamber (9) between itself and rear pump cover (2)；Mechanically-sealing apparatus (10) it is provided with between described rear pump cover (2) and the pump housing (1).
A kind of high-efficiency desulfurization absorption tower the most according to claim 1 circulating pump, it is characterised in that: also include fluid reservoir (13)；Described fluid reservoir (13) is located at the pump housing (1) bottom, is provided with cutoff board (14) between described fluid reservoir (13) and the pump housing (1), and described fluid reservoir (13) bottom is provided with tap hole, and described tap hole is provided with screw plug (15).
A kind of high-efficiency desulfurization absorption tower the most according to claim 1 circulating pump, it is characterised in that: described impeller (2) is half-opened impeller.
A kind of high-efficiency desulfurization absorption tower the most according to claim 1 circulating pump, it is characterised in that: described key (5) and impeller (3) are connected by impeller holding screw (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610626893.XA CN106015016A (en) | 2016-08-01 | 2016-08-01 | Circulating pump of efficient desulfurizing absorption tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610626893.XA CN106015016A (en) | 2016-08-01 | 2016-08-01 | Circulating pump of efficient desulfurizing absorption tower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106015016A true CN106015016A (en) | 2016-10-12 |
Family
ID=57134259
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610626893.XA Pending CN106015016A (en) | 2016-08-01 | 2016-08-01 | Circulating pump of efficient desulfurizing absorption tower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106015016A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107387458A (en) * | 2017-07-26 | 2017-11-24 | 德清县东旭合金钢铸造有限公司 | A kind of pump cover structure of chemical pump |
| WO2021254531A1 (en) * | 2020-06-16 | 2021-12-23 | 江苏大学 | Automatic compensation apparatus of pump front cavity, used for improving closed impeller backflow |
-
2016
- 2016-08-01 CN CN201610626893.XA patent/CN106015016A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107387458A (en) * | 2017-07-26 | 2017-11-24 | 德清县东旭合金钢铸造有限公司 | A kind of pump cover structure of chemical pump |
| WO2021254531A1 (en) * | 2020-06-16 | 2021-12-23 | 江苏大学 | Automatic compensation apparatus of pump front cavity, used for improving closed impeller backflow |
| US20220356888A1 (en) * | 2020-06-16 | 2022-11-10 | Jiangsu University | Pump front chamber automatic compensation device for improving closed impeller backflow |
| US11754095B2 (en) * | 2020-06-16 | 2023-09-12 | Jiangsu University | Pump front chamber automatic compensation device for improving closed impeller backflow |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20161012 |
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| RJ01 | Rejection of invention patent application after publication |