CN101191492B - High temperature high impurity ratio centrifugal coal slurry pump - Google Patents
High temperature high impurity ratio centrifugal coal slurry pump Download PDFInfo
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- CN101191492B CN101191492B CN200610118809A CN200610118809A CN101191492B CN 101191492 B CN101191492 B CN 101191492B CN 200610118809 A CN200610118809 A CN 200610118809A CN 200610118809 A CN200610118809 A CN 200610118809A CN 101191492 B CN101191492 B CN 101191492B
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Abstract
The invention relates to a high temperature and high noise ratio centrifugal slurry pump, which is a single-pole and single-suction vertical pump of a cantilever structure. A pump seat, a pump rack and a post-heating cavity composes an outer shell; a front cover plate, a rear cover plate and a water discharge section composes an inner shell, which altogether composes a double-shell structure; wherein, an impeller structure is a double-block impeller structure and a filling and sealing structure is a whole dismountable filling and sealing structure. The invention also comprises a set of heating mechanism which can heat each part of the pump and keep the temperature. The high temperature and high noise ratio centrifugal slurry pump of the invention integrates the functions of a slag pump, a chemical pump and a pump of high revolution speed, solves the problem that the overflow components such as the impeller and the pump wear and solid fills up and block in an area and solves the problems such as sealing, heating and temperature preservation, which is of great utility values.
Description
Technical field
The present invention relates to a kind of FLUID TRANSPORTATION pump, relate in particular to a kind of high temperature high impurity ratio centrifugal coal slurry pump.
Background technique
Centrifugal type slurry pump can be used to carry the solid mixture that abrasion is more intense, contain the strong solid particle, like ore pulp, lime-ash, cement slurry, mortar, grit etc.But existing centrifugal type slurry pump allows impurity content usually between 3～5%, and in power plant desulfurization technology, carbon residue content is up to 30%, and this is the at present domestic and international the highest operating mode of impurity content.And in " coal system oil " direct liquefaction commercial plant; Solid content is up to 50%wt in the coal slurry; Existing centrifugal type slurry pump can not adapt to; Add and need to keep medium temperature, thereby wear problem, the alluvial of solid in certain zone that this pump must solve flow passage components such as the impeller and the pump housing block problems such as problem, sealing problem and heat tracing more than 300 ℃.
Summary of the invention
The object of the invention provides a kind of high temperature high impurity ratio centrifugal coal slurry pump exactly in order to address the above problem.
The objective of the invention is to realize like this: a kind of high temperature high impurity ratio centrifugal coal slurry pump; Be cantilever structure one step single sucking vertical pump; Mainly comprise pump seat, pump bracket, impeller, impeller shaft, front shroud, back shroud, intake pipe, water exit end, back heating cavity, filler and filler baffle plate, be characterized in that described pump seat, pump bracket and back heating cavity are formed frame; Described front shroud, back shroud and water exit end are formed inner housing, constitute double-shell structure; Described impeller is a unshrouded impeller, is provided with back blade in nearly back shroud one side of impeller, is in series with two resistance envelope impellers at the rear portion of impeller, is provided with resistance packing plate in the peripheries of two resistance envelope impellers, constitutes two resistance envelope blade wheel structures; On said impeller shaft, be with axle sleeve corresponding to the position of laying filler; Many fillers are closely arranged the periphery that is arranged on this axle sleeve; Compress the realization sealing by Gland; Be connected with bolt between described filler and the filler baffle plate, and, constitute detachable whole packing seal structure with metallic cover pad static seal.
Described filler baffle plate is provided with the flushing oil import, and the flushing oil inlet tube is installed in the flushing oil import.
Also comprise one group of heating machanism that can heat and be incubated the each several part of pump, this group heating machanism comprises intake pipe heating machanism, preceding heating machanism, middle heating machanism and back heating machanism; Each heating machanism all comprises an inlet tube, an outer pipe and a heating chamber.
The heating chamber of described intake pipe heating machanism is the chuck that is arranged in the water tube wall into, and its inlet tube is connected on the head flanges of intake pipe and with chuck and is communicated with, and its outer pipe is connected on the root flange of intake pipe and with chuck and is communicated with.
The heating chamber of heating machanism is the gap that forms between pump seat and the front shroud before described, and it is imported and exported to manage to be connected on the pump seat and also is communicated with the opposite end of heating chamber respectively.
The heating chamber of heating machanism is the gap that forms between front shroud and the water exit end in described, and it is imported and exported to manage to be connected on the pump seat and to pass front shroud respectively and is communicated with the opposite end of heating chamber.
The heating chamber of described back heating machanism is the gap that forms between back shroud and the back heating cavity, and its import and export pipe is connected to the opposite end of back heating cavity and is communicated with heating chamber respectively.
Described packing seal structure also comprises a packing ring, and this packing ring replaces two fillers and is arranged on the periphery of axle sleeve, and on the Gland of relevant position, is provided with the sealing liquid import, can inject the sealing liquid auxiliary seal as required.
Described impeller adopts nickel Hart alloy to make with resistance envelope impeller, and described front shroud, back shroud and outlet pipe adopt KmTBCr26 to make.
High temperature high impurity ratio centrifugal coal slurry pump of the present invention integrates slag stock pump, chemical pump and high speed pump functional characteristics; The wear problem, the alluvial of solid in certain zone that have solved flow passage components such as the impeller and the pump housing block problems such as problem, sealing problem and heat tracing, have use value.
Description of drawings
Fig. 1 is the general structure cross-sectional schematic of high temperature high impurity ratio centrifugal coal slurry pump of the present invention;
Fig. 2 is the right side view of coal slurry pump shown in Figure 1;
Fig. 3 is the two resistance envelope blade wheel structure schematic representation among the present invention;
Fig. 4 is the heating arrangement schematic representation among the present invention;
Fig. 5 is the packing seal structure schematic representation among the present invention.
Embodiment
Referring to Fig. 1, Fig. 2; High temperature high impurity ratio centrifugal coal slurry pump of the present invention comprises that pump seat 1, intake pipe 2, pad 3, front shroud 4, water exit end 5, impeller 6, back shroud 7, resistance packing plate 8, filler 9, packing ring 10, axle sleeve 11, bearing bracket 12, axle sleeve 13, angular contact ball bearing 14, electric machine support 15, coupling parts 16, water inlet heating chamber inlet tube 17, preceding heating chamber import and export pipe 18, middle heating chamber and import and export pipe 19, motor 20, locking nut 21, bearing cap 22, bearing support 23, axle 24, roller bearing 25, bearing cap 26, Gland 27, flushing oil inlet tube 28, filler 29, back heating cavity 30, filler baffle plate 31, resistance envelope impeller 32, back heating chamber and import and export pipe 33, adjustment pad 34, pump bracket 35 and water inlet heating chamber outer pipe 36.
Consider the solid matter that the slag stock pump is carried, the pump flow passage components are had very strong abrasion, thus the selecting for use of reasonable structural design and overcurrent part material, can guarantee the reliable running of pump, reduce the rate of wear of overcurrent component, prolong the working life of pump.Impeller 6 among the present invention adopts nickel Hart alloy to make with resistance envelope impeller 32, and front shroud 4, water exit end 5, back shroud 7 adopt KmTBCr26 to make.Because the gold machining manufacturability of high-abrasive material is relatively poor; Direct and the contacted part of fed sheet of a media often need be changed again; So the present invention forms frame by pump seat 1, pump bracket 35 and back heating cavity 30, forms inner housing by front shroud 4, back shroud 7 and water exit end 5, constitutes double-shell structure; Through tolerance fit and bolton, whole flow passage components can reduce wear part like this by pump seat 1, pump bracket 35 and bearing bracket 12.
Bearing bracket 12 cooperates with bearing support 23 and constitutes water cooling chamber, in order to roller bearing 25 coolings, and the heat transfer of blocking-up 20 directions from pump inlet towards motor.Pump seat 1 is imported and exported the pipeline positions with pump bracket 35 locking pumps, when tearing pump open, and can motionless import and export pipeline and pump rotor is all taken out convenient for maintaining.
Cooperation is referring to Fig. 3, and for the alluvial of anti-heads and coal dust, the present invention is designed to unshrouded impeller with impeller 6; At its back shroud place back blade 61 is set; Through the back blade action of centrifugal force, a large amount of solid matters is radially thrown away, avoided a large amount of alluvials between pump and axle envelope.
Referring to Fig. 3, the present invention has also connected behind impeller 6 two and has hindered envelope impellers 32, and between two resistance envelope impellers 32, resistance packing plate 8 is set, the two resistance envelope of formation blade wheel structures.This structure further block media is sealed flowing of direction to axle, reduces axle envelope place pressure, prevents alluvial.
The present invention and is provided with stop pin 37 between resistance packing plate 8 and the filler baffle plate 31 also between back shroud 7 and resistance packing plate 8, and whole two resistance envelope blade wheel structures are fastening by back heating cavity 30 and back shroud 7 and bearing bracket 12.
The present invention also is provided with the flushing oil import on filler baffle plate 31, flushing oil inlet tube 28 is installed in the flushing oil import.Inject flushing oil through flushing oil inlet tube 28 and wash, can prevent the coal slurry alluvial.
Referring to Fig. 5; Packing seal structure of the present invention is detachable whole packing seal; On impeller shaft 24, be with axle sleeve 11 corresponding to the position of laying filler, many fillers 9 are closely arranged the periphery that is arranged on this axle sleeve, are compressed by Gland 27 and realize sealing; Be connected with bolt between filler 29 and the filler baffle plate 31, and with metallic cover pad 38 static seals.
Above-mentioned packing seal structure can also comprise a packing ring 10, and this packing ring replaces two fillers 9 and is arranged on the periphery of axle sleeve 11, and on the Gland 27 of relevant position, is provided with sealing liquid import 201.According to reality sealing situation, then inject the sealing liquid auxiliary seal like needs; As do not need, then take out packing ring 10, and seal sealing liquid import 201, put into two fillers 9 in the place of putting packing ring 10 originally.Filler 29 quick releases are convenient for changing filler.
Cooperation is referring to Fig. 4, and for keeping medium temperature, the present invention also is provided with one group of heating machanism that can heat and be incubated the each several part of pump, and this group heating machanism comprises intake pipe heating machanism, preceding heating machanism, middle heating machanism and back heating machanism; Each heating machanism all comprises an inlet tube, an outer pipe and a heating chamber.The concrete practice is:
1, a chuck is set as heating chamber 101 in the tube wall of intake pipe 2; An inlet tube 17 is installed on the head flanges of intake pipe and is communicated with chuck; An outer pipe 36 is installed on the root flange of intake pipe and is communicated with formation intake pipe heating machanism with chuck.Through the conduction oil of 310 ℃～350 ℃ of implantation temperatures, pressure 0.65Mpa, in order to keep the temperature of intake pipe 2 medium.
2, constitute preceding heating chamber 102 by the gap that forms between pump seat 1 and the front shroud 4, and on pump seat 1, be installed into outer pipe 18 respectively and be communicated with heating machanism before constituting respectively with the opposite end of preceding heating chamber.Through the conduction oil of 310 ℃～350 ℃ of implantation temperatures, pressure 0.65Mpa, in order to keep impeller 6 imports and front shroud 4 place's medium temperatures;
3, constitute middle heating chamber 103 by the gap that forms between front shroud 4 and the water exit end 5, also passing front shroud 4 respectively is communicated with heating machanism in the formation with the opposite end of middle heating chamber on pump seat 1, to be installed into outer pipe 19 respectively.Through the conduction oil of 310 ℃～350 ℃ of implantation temperatures, pressure 0.65Mpa, in order to keep water exit end 5 medium temperature;
4, constitute back heating chamber 104 by the gap that forms between back shroud 7 and the back heating cavity 30, the opposite end of heating cavity is installed into outer pipe respectively and is communicated with heating chamber respectively in the back, constitutes the back heating machanism.Through the conduction oil of 310 ℃～350 ℃ of implantation temperatures, pressure 0.65Mpa, in order to keep back shroud 7 and resistance envelope impeller 32 place's medium temperatures.
The present invention integrates slag stock pump, chemical pump and high speed pump functional characteristics, has solved the difficult problem of the fast speed pump of high concentration, and this pump meets API610 " API Std-oil, heavy chemistry and gas industrial centrifugal pump " standard.
The present invention is applicable to chemical industry and the high place of impurity content high-temperature, coal liquefaction field.Also can be applicable to the high occasions of impurity content such as mine, power station, papermaking.
Claims (5)
1. high temperature high impurity ratio centrifugal coal slurry pump; Be cantilever structure one step single sucking vertical pump; Mainly comprise pump seat, pump bracket, impeller, impeller shaft, front shroud, back shroud, intake pipe, water exit end, back heating cavity, filler and filler baffle plate; It is characterized in that: described pump seat, pump bracket and back heating cavity are formed frame, and described front shroud, back shroud and water exit end are formed inner housing, constitute double-shell structure; Described impeller is a unshrouded impeller, is provided with back blade in nearly back shroud one side of impeller, is in series with two resistance envelope impellers at the rear portion of impeller, is provided with resistance packing plate in the peripheries of two resistance envelope impellers, constitutes two resistance envelope blade wheel structures; On said impeller shaft, be with axle sleeve corresponding to the position of laying filler; Many fillers are closely arranged the periphery that is arranged on this axle sleeve; Compress the realization sealing by Gland; Be connected with bolt between described filler and the filler baffle plate, and, constitute detachable whole packing seal structure with metallic cover pad static seal;
Also comprise one group of heating machanism that can heat and be incubated the each several part of pump, this group heating machanism comprises intake pipe heating machanism, preceding heating machanism, middle heating machanism and back heating machanism; Each heating machanism all comprises an inlet tube, an outer pipe and a heating chamber.
2. high temperature high impurity ratio centrifugal coal slurry pump as claimed in claim 1; It is characterized in that: the heating chamber of described intake pipe heating machanism is the chuck that is arranged in the water tube wall into; Its inlet tube is connected on the head flanges of intake pipe and with chuck and is communicated with, and its outer pipe is connected on the root flange of intake pipe and with chuck and is communicated with.
3. high temperature high impurity ratio centrifugal coal slurry pump as claimed in claim 1; It is characterized in that: the heating chamber of heating machanism is the gap that forms between pump seat and the front shroud before described, and it is imported and exported to manage to be connected on the pump seat and also is communicated with the opposite end of heating chamber respectively.
4. high temperature high impurity ratio centrifugal coal slurry pump as claimed in claim 1; It is characterized in that: the heating chamber of heating machanism is the gap that forms between front shroud and the water exit end in described, and it is imported and exported to manage to be connected on the pump seat and to pass front shroud respectively and is communicated with the opposite end of heating chamber.
5. high temperature high impurity ratio centrifugal coal slurry pump as claimed in claim 1; It is characterized in that: the heating chamber of described back heating machanism is the gap that forms between back shroud and the back heating cavity, and its import and export pipe is connected to the opposite end of back heating cavity and is communicated with heating chamber respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200610118809A CN101191492B (en) | 2006-11-28 | 2006-11-28 | High temperature high impurity ratio centrifugal coal slurry pump |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200610118809A CN101191492B (en) | 2006-11-28 | 2006-11-28 | High temperature high impurity ratio centrifugal coal slurry pump |
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| CN101191492A CN101191492A (en) | 2008-06-04 |
| CN101191492B true CN101191492B (en) | 2012-09-26 |
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| CN200610118809A Active CN101191492B (en) | 2006-11-28 | 2006-11-28 | High temperature high impurity ratio centrifugal coal slurry pump |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10287522B2 (en) | 2013-01-31 | 2019-05-14 | General Electric Company | System and method for preparing coal water slurry |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103511322A (en) * | 2013-09-14 | 2014-01-15 | 江苏飞跃机泵制造有限公司 | Low-pressure centrifugal coal slurry pump |
| CN103727072B (en) * | 2013-12-31 | 2016-04-06 | 江苏大学 | A kind of transh pump machine envelope is rinsed and bearing cooler |
| CN106949087B (en) * | 2017-05-03 | 2023-03-28 | 哈尔滨电气动力装备有限公司 | Shaft seal type nuclear main pump impeller structure with back vanes |
| CN107143499A (en) * | 2017-07-12 | 2017-09-08 | 盐城国众化工有限公司 | One kind is used for dimethyl benzyl carbinol conveying centrifugal pump device |
| CN110017284A (en) * | 2018-01-06 | 2019-07-16 | 何巨堂 | There are 2 grades or centrifugal multistage pump multiple centrifugal pump of at least two difference lift leakage fluid dram |
| CN116816685B (en) * | 2023-07-05 | 2024-03-15 | 湖南湘祥泵业制造有限公司 | High-solid-content medium yellow phosphorus submerged cantilever type conveying pump |
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| CN2475853Y (en) * | 2001-04-11 | 2002-02-06 | 大连深蓝泵业有限公司 | High temp. long axis pump for submerged use |
| CN2779125Y (en) * | 2005-03-14 | 2006-05-10 | 上海通用泵机设备有限公司第一水泵厂 | Centrifugal coal slurry pump with medium for filtering high impurity |
| CN201106565Y (en) * | 2006-11-28 | 2008-08-27 | 上海通用泵机设备有限公司第一水泵厂 | High-temperature high sundry-ratio centrifugal type coal liquid pump |
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Patent Citations (3)
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| CN2475853Y (en) * | 2001-04-11 | 2002-02-06 | 大连深蓝泵业有限公司 | High temp. long axis pump for submerged use |
| CN2779125Y (en) * | 2005-03-14 | 2006-05-10 | 上海通用泵机设备有限公司第一水泵厂 | Centrifugal coal slurry pump with medium for filtering high impurity |
| CN201106565Y (en) * | 2006-11-28 | 2008-08-27 | 上海通用泵机设备有限公司第一水泵厂 | High-temperature high sundry-ratio centrifugal type coal liquid pump |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10287522B2 (en) | 2013-01-31 | 2019-05-14 | General Electric Company | System and method for preparing coal water slurry |
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| CN101191492A (en) | 2008-06-04 |
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