CN204371694U - A kind of urea melting high temperature pump - Google Patents
A kind of urea melting high temperature pump Download PDFInfo
- Publication number
- CN204371694U CN204371694U CN201420739153.3U CN201420739153U CN204371694U CN 204371694 U CN204371694 U CN 204371694U CN 201420739153 U CN201420739153 U CN 201420739153U CN 204371694 U CN204371694 U CN 204371694U
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- Prior art keywords
- pump
- sealed case
- high temperature
- water
- cover
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Abstract
A kind of urea melting high temperature pump, comprise the pump housing, pump cover, pump shaft, be provided with pump cover after the pump housing, be connected with sealed case after pump cover, sealed case top is provided with steam blowing import, is provided with steam blowing outlet below, sealed case cylindrical is provided with liquid port; On described pump shaft, impeller back face is provided with axle sleeve, and axle sleeve is above provided with mechanical seal, after be provided with heat conducting sleeve and water seal, heat conducting sleeve is connected by screw in sealed case shoulder hole, and water seal is fixed in sealed case shoulder hole by water gland; Described bearing housing drive end cylindrical is provided with water-cooling jacket, and drive end side is provided with cover plate A.The utility model novel structure, running are stablized, improve sealability, are extended working life, decrease maintenance cost.The utility model is used for transporting molten urea solution, also can be used for carrying not containing other corrosive liquids of suspending particulate matter.
Description
Technical field:
The utility model relates to industrial pump, particularly relates to a kind of urea melting high temperature pump for urea production.
Background technique:
Urea melting high temperature pump is one of crucial pump of urea production, and its effect the fusing urea of dual circulation groove is transported to prilling spry carry out granulation, and molten urea solution normal running temperature is 132 DEG C, and urea crystals temperature is 132 DEG C.Existing pump pump cover and the pump housing do not have thermal insulation apparatus, molten urea pump disclosed in patent No. 200920315812.X, thermal insulation property is bad, the easy crystallization of urea solution, can cause mechanical seal to lose efficacy after work a period of time, occur leakage problem, constantly change mechanical seal, bring great inconvenience to production operation and maintenance, bring unnecessary economic burden to enterprise, therefore the working life of prolonged mechanical sealing is very necessary; And existing structure bearing housing does not have cooling unit, the bearing temperature under hot environment cannot be reduced, affect normal operation and the working life of pump.
Summary of the invention:
The purpose of this utility model be to provide a kind of novel structure, running stable, sealability can be improved, the urea melting high temperature pump of the maintenance cost that increases the service life, reduces.
The utility model is achieved in that a kind of urea melting high temperature pump, comprise the pump housing, pump cover, pump shaft, pump cover is provided with after the pump housing, pump shaft front end is provided with impeller, and pump shaft rear end is provided with bearing housing, it is characterized in that: described pump housing outer ring is provided with insulation jacket, sealed case is connected with after pump cover, sealed case top is provided with steam blowing import, is provided with steam blowing outlet below, sealed case cylindrical is provided with liquid port; On described pump shaft, impeller back face is provided with axle sleeve, and axle sleeve is above provided with mechanical seal, after be provided with heat conducting sleeve and water seal, heat conducting sleeve is connected by screw in sealed case shoulder hole, and water seal is fixed in sealed case shoulder hole by water gland; Described bearing housing drive end cylindrical is provided with water-cooling jacket, and drive end side is provided with cover plate A; Form cooling chamber A between water-cooling jacket and bearing housing, between cover plate A and bearing housing, form cooling chamber B, cooling chamber B is provided with cooling water intake, cooling chamber A is provided with coolant outlet, be connected by connecting tube A between two cooling chambers.
Pump cover inner chamber described in the utility model is provided with mechanical seal, and pump cover is provided with annular groove, is provided with cover plate B on rear side of annular groove, forms incubation cavity A between pump cover and cover plate B.
Incubation cavity B is formed between insulation jacket described in the utility model and the pump housing.
Incubation cavity A described in the utility model is connected by connecting tube with incubation cavity B.
Mechanical seal described in the utility model is arranged on axle sleeve and heat conducting sleeve.
Heat conducting sleeve described in the utility model and be provided with the interval of 0.5 ~ 1mm between axle sleeve and sealed case.
Heat conducting sleeve described in the utility model is provided with thermal hole.
The utility model novel structure, running are stablized, improve sealability, are extended working life, decrease maintenance cost.
Accompanying drawing illustrates:
Fig. 1 is structural representation of the present utility model.
In figure 1, the pump housing, 2, impeller, 3, axle sleeve, 4, pump cover, 5, mechanical seal, 6, sealed case, 7, steam blowing import, 8, heat conducting sleeve, 10, water seal, 11, water gland, 12, cooling water intake, 13, bearing housing, 13-1, cooling chamber A, 13-2, cooling chamber B, 14, coolant outlet, 15, water-cooling jacket, 16, pump shaft, 18, connecting tube A, 19, cover plate A, 20, liquid port, 21, cover plate B, 22, insulation entrance, 23, incubation cavity A, 24, insulation outlet, 25, incubation cavity B, 26, insulation jacket.
Embodiment:
Below in conjunction with accompanying drawing, the utility model is further described:
With reference to accompanying drawing, a kind of urea melting high temperature pump, comprise the pump housing 1, pump cover 4, pump shaft 11, the pump housing 1 is provided with pump cover 4 below, and pump shaft 11 front end is provided with impeller 2, pump shaft 11 rear end is provided with bearing housing 13, it is characterized in that: the described pump housing 1 outer ring is provided with insulation jacket 26, pump cover 4 is connected with sealed case 6 below, and sealed case 6 top is provided with steam blowing import 7, be provided with steam blowing outlet below, sealed case 6 cylindrical is provided with liquid port 20; On described pump shaft 11, impeller 2 is provided with axle sleeve 3 below, axle sleeve 3 is provided with mechanical seal 5 above, be provided with heat conducting sleeve 8 and water seal 10 below, heat conducting sleeve 8 is connected by screw in sealed case 6 shoulder hole, and water seal 10 is fixed in sealed case 6 shoulder hole by water gland 11; Described bearing housing 13 drive end cylindrical is provided with water-cooling jacket 15, and drive end side is provided with cover plate A19; Cooling chamber A13-1 is formed between water-cooling jacket 15 and bearing housing 13, cooling chamber B13-2 is formed between cover plate A19 and bearing housing 13, cooling chamber B13-2 is provided with cooling water intake 12, cooling chamber A13-1 is provided with coolant outlet 14, be connected by connecting tube A18 between two cooling chambers.Described pump cover 4 inner chamber is provided with mechanical seal 5, pump cover 4 is provided with annular groove, is provided with cover plate B21 on rear side of annular groove, form incubation cavity A23 between pump cover 4 and cover plate B21.Incubation cavity B25 is formed between described insulation jacket 26 and the pump housing 1.Described incubation cavity A23 is connected by connecting tube with incubation cavity B25.Described mechanical seal 5 is arranged on axle sleeve 3 and heat conducting sleeve 8.Described heat conducting sleeve 8 and be provided with the interval of 0.5 ~ 1mm between axle sleeve 3 and sealed case 6.Described heat conducting sleeve 8 is provided with thermal hole.
During concrete enforcement, the front steam blowing import of running passes into steam and carries out preheating and washed away by urea crystals thing; During running, the steam that steam blowing import passes into takes heat to mechanical seal inner ring by heat conducting sleeve 8, and can avoid mechanical seal inner ring urea crystals, become water after steam-condensation, sealed by water seal, condensed fluid is discharged from liquid port, avoids condensed fluid to enter bearing housing; Mechanical seal outer ring is incubated prevention urea crystals by incubation cavity A.The utility model extends the working life of mechanical seal and bearing, decreases maintenance cost.The utility model is used for transporting molten urea solution, also can be used for carrying not containing other corrosive liquids of suspending particulate matter.
Claims (7)
1. a urea melting high temperature pump, comprise the pump housing (1), pump cover (4), pump shaft (11), the pump housing (1) is provided with pump cover (4) below, pump shaft (11) front end is provided with impeller (2), pump shaft (11) rear end is provided with bearing housing (13), it is characterized in that: the described pump housing (1) outer ring is provided with insulation jacket (26), pump cover (4) is connected with sealed case (6) below, sealed case (6) top is provided with steam blowing import (7), be provided with steam blowing outlet below, sealed case (6) cylindrical be provided with liquid port (20); The upper impeller (2) of described pump shaft (11) is provided with axle sleeve (3) below, mechanical seal (5) is provided with before axle sleeve (3) is upper, be provided with heat conducting sleeve (8) and water seal (10) below, heat conducting sleeve (8) is connected by screw in sealed case (6) shoulder hole, and water seal (10) is fixed in sealed case (6) shoulder hole by water gland (11); Described bearing housing (13) drive end cylindrical is provided with water-cooling jacket (15), and drive end side is provided with cover plate A(19); Cooling chamber A(13-1 is formed) between water-cooling jacket (15) and bearing housing (13), cover plate A(19) and bearing housing (13) between form cooling chamber B(13-2), cooling chamber B(13-2) on be provided with cooling water intake (12), cooling chamber A(13-1) on be provided with coolant outlet (14), by connecting tube A(18 between two cooling chambers) be connected.
2. according to a kind of urea melting high temperature pump described in claim 1, it is characterized in that: described pump cover (4) inner chamber is provided with mechanical seal (5), (4) are provided with annular groove with pump cover, be provided with cover plate B(21 on rear side of annular groove), pump cover (4) and cover plate B(21) between form incubation cavity A(23).
3. according to a kind of urea melting high temperature pump described in claim 1, it is characterized in that: between described insulation jacket (26) and the pump housing (1), form incubation cavity B(25).
4. according to a kind of urea melting high temperature pump described in claim 1, it is characterized in that: described incubation cavity A(23) with incubation cavity B(25) be connected by connecting tube.
5. according to a kind of urea melting high temperature pump described in claim 1, it is characterized in that: described mechanical seal (5) is arranged on axle sleeve (3) and heat conducting sleeve (8).
6. according to a kind of urea melting high temperature pump described in claim 1, it is characterized in that: described heat conducting sleeve (8) and be provided with the interval of 0.5 ~ 1mm between axle sleeve (3) and sealed case (6).
7. a kind of urea melting high temperature pump according to claim 1 or 6, is characterized in that: described heat conducting sleeve (8) is provided with thermal hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420739153.3U CN204371694U (en) | 2014-12-02 | 2014-12-02 | A kind of urea melting high temperature pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420739153.3U CN204371694U (en) | 2014-12-02 | 2014-12-02 | A kind of urea melting high temperature pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204371694U true CN204371694U (en) | 2015-06-03 |
Family
ID=53327919
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420739153.3U Expired - Fee Related CN204371694U (en) | 2014-12-02 | 2014-12-02 | A kind of urea melting high temperature pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204371694U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105971936A (en) * | 2016-01-11 | 2016-09-28 | 欧技工业设备（江苏）有限公司 | Large circulating pump with bearing box cooling device |
| CN107355387A (en) * | 2017-09-12 | 2017-11-17 | 江苏金利化工机械有限公司 | A kind of new ammonium nitrate solution delivery pump device |
| CN111219334A (en) * | 2018-10-30 | 2020-06-02 | 杭州富阳锦丰纸业有限公司 | Urea filling pump for diesel vehicle |
| CN114233686A (en) * | 2022-02-10 | 2022-03-25 | 浙江水泵总厂有限公司 | Water pump cooling structure and cooling system with same |
| CN115199590A (en) * | 2022-09-13 | 2022-10-18 | 江苏亚梅泵业集团有限公司 | Molten urea pump capable of achieving both intermittent operation and long-time operation |
| CN117489604A (en) * | 2024-01-02 | 2024-02-02 | 江苏翰纳泵业有限公司 | Three-body heat-preservation magnetic pump |
-
2014
- 2014-12-02 CN CN201420739153.3U patent/CN204371694U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105971936A (en) * | 2016-01-11 | 2016-09-28 | 欧技工业设备（江苏）有限公司 | Large circulating pump with bearing box cooling device |
| CN107355387A (en) * | 2017-09-12 | 2017-11-17 | 江苏金利化工机械有限公司 | A kind of new ammonium nitrate solution delivery pump device |
| CN111219334A (en) * | 2018-10-30 | 2020-06-02 | 杭州富阳锦丰纸业有限公司 | Urea filling pump for diesel vehicle |
| CN114233686A (en) * | 2022-02-10 | 2022-03-25 | 浙江水泵总厂有限公司 | Water pump cooling structure and cooling system with same |
| CN115199590A (en) * | 2022-09-13 | 2022-10-18 | 江苏亚梅泵业集团有限公司 | Molten urea pump capable of achieving both intermittent operation and long-time operation |
| CN115199590B (en) * | 2022-09-13 | 2023-02-10 | 江苏亚梅泵业集团有限公司 | Molten urea pump capable of achieving both intermittent operation and long-time operation |
| CN117489604A (en) * | 2024-01-02 | 2024-02-02 | 江苏翰纳泵业有限公司 | Three-body heat-preservation magnetic pump |
| CN117489604B (en) * | 2024-01-02 | 2024-04-02 | 江苏翰纳泵业有限公司 | Three-body heat-preservation magnetic pump |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150603 Termination date: 20201202 |