CN2547914Y - Vertical single-suction multi-stage centrifugal liquid chlorine pump - Google Patents
Vertical single-suction multi-stage centrifugal liquid chlorine pump Download PDFInfo
- Publication number
- CN2547914Y CN2547914Y CN 02276820 CN02276820U CN2547914Y CN 2547914 Y CN2547914 Y CN 2547914Y CN 02276820 CN02276820 CN 02276820 CN 02276820 U CN02276820 U CN 02276820U CN 2547914 Y CN2547914 Y CN 2547914Y
- Authority
- CN
- China
- Prior art keywords
- gasification room
- main shaft
- pump
- stuffing box
- section
- 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.)
- Expired - Fee Related
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Abstract
The utility model provides a vertical single-suction multi-stage centrifugal liquid chlorine pump, comprising a main shaft of a rotor, an impeller, a balancing drum, a balancing pipe, an inlet section, an outlet section and an intermediate section. The utility model is characterized in that: the main shaft of the rotor realizes double-supporting-point supporting through an upper rolling bearing group in a bearing support and a tetrafluoride sliding bearing component at the lower end of the pump body; a vacuum cold insulation jacket is arranged on the pump body between the outlet section and the inlet section; the main shaft of the rotor at the outlet section is provided with a stuffing box; a gasification room is arranged on the upper end of the stuffing box; a bearing support is arranged on the upper end of the gasification room and the rolling bearing group is fixed on the bearing support. The combining part between the upper part and the lower part of the gasification room and the main shaft of the rotor is provided with a gas phase sealing structure and a liquid phase sealing structure. The gas phase sealing structure and the liquid phase sealing structure respectively consist of a section of sealing structure component. The vertical single-suction multi-stage centrifugal liquid chlorine pump has the advantages of compact structure, about fifty percent pump efficiency, long service cycle and no need of a special factory.
Description
Technical field
The utility model relates to a kind of vertical single suction multistage centrifugal liquid chlorine pump, belongs to liquid chlorine and carries the isolated plant class.
Background technique
Liquid chlorine is handled the low pressure chlorine of coming by chlorine hydrogen and is formed through low-temperature liquefaction.Because pressure is lower, need to store use after the pressurized package.At present, domestic each user producer adopts following three kinds of pressure methods: 1, liquid chlorine vaporization pressurization; 2, nitrogen pressure; 3, liquid chlorine submerged pump pressurization.Preceding two kinds of pressure methods of wherein being carried---when liquid chlorine vaporization pressurization and nitrogen pressure were packed, its useless chlorine treating capacity was bigger, extremely uneconomical, has belonged to the phasing-out model method.The liquid chlorine submerged pump pressure method, though in use can overcome the useless bigger defective of chlorine treating capacity in the said method, but owing to also have some unfavorable places on itself structure, so the life cycle of pump is shorter, general about four to six months will overhaul once; Also exist efficient on the low side simultaneously, generally about 30%; And price is also relatively more expensive, is difficult for being accepted by users, thereby influences promoting the use of of Under Water Pumps.
Technology contents
The purpose of the present utility model: aim to provide a kind of liquid chlorine pump of new structure, wish that it not only has higher working efficiency, and can make the medium back flow amount be reduced to bottom line, to improve the efficient of pump.
This vertical single suction multistage centrifugal liquid chlorine pump is made up of rotor main shaft (20), impeller (21), balancing drum (19), balance tube (1), inducer (3), outlet section (7), stage casing (22), it is characterized in that:
A, described rotor main shaft (20) adopt two point supportings---and fulcrum is by last rolling bearing group (12) supporting of being located in the bearing bracket (11) on it, and its underpart then is mated supporting by the tetrafluoro sliding bearing assembly parts (2) of being located at pump housing bottom;
Be nested with a vacuum cold insulation chuck (4) on the pump housing between B, described outlet section (7) and the inducer (3);
On the rotor main shaft (20) that C, described outlet section (7) are located a Stuffing box (18) is set, the top position of this Stuffing box (18), a gasification room (10) is being set, the position, upper end of this gasification room (10) is being provided with bearing bracket (11), goes up the fixing rolling bearing group (12) that goes up at bearing bracket (11).
Described gasification room (10) both sides respectively are provided with a hand hole cover (9), are provided with a waste gas sewage draining exit e who communicates with gasification room (10) inner chamber simultaneously in itself and junction, pump main body top; Be provided with the inlet d that inculcates nitrogen (or taking out negative pressure) at gasification room (10) with upper bearing support (11) place of combining; In addition, liquid phase sealing configuration and gas phase sealing configuration on the position, above and below of described gasification room (10), have been designed; Wherein said liquid phase sealing configuration is formed by two sections: form by being close to the balancing drum (19) that sub-propeller (8) that outlet section (7) locates and below be placed on the rotor main shaft (20) for first section, second section then by being located at the sub-propeller top and stretching into the packing seal that the Stuffing box (18), stuffing box packing (14), Gland (17) etc. of gasification room (10) inner chamber form and form; Described gas phase sealing also is divided into two sections, it is positioned at hypomere that gasification room (10) contacts with chlorine mainly by being located at the labyrinth seal (labyrinth sealing) that gasification room (10) central sleeve places broach axle sleeve (16) on the rotor main shaft (20) and labyrinth seal cover (15) to form, the packing seal that its epimere then is made up of the stuffing box packing of stretching into bearing bracket portion (14) and Gland (17).
This vertical single suction multistage centrifugal liquid chlorine pump according to above technological scheme design, its advantage is: the structure and the performance range that have broken through traditional liquid chlorine submerged pump, owing to structurally adopt the at present domestic hydraulic model of advanced vertical multi-stage centrifugal pump, the medium back flow amount is reduced to bottom line, the efficient of pump is brought up to about 50%; Simple and compact for structure in addition, can directly near liquid chlorine metering tank, install, do not need to build special-purpose factory building; Can realize utilizing liquid chlorine metering tank self pressure that liquid chlorine is pressed in the pump, therefore, need not to connect, can guarantee liquid chlorine metering tank safety, also can avoid impurity to enter system in the pump at liquid chlorine metering tank bottom opening welded tube.
Description of drawings
Accompanying drawing is the utility model structural representation.
Among the figure: 1, balance tube 2, tetrafluoro sliding bearing assembly parts 3, inducer 4, vacuum cold insulation chuck 5, stator 6, seal ring 7, outlet section 8, sub-propeller 9, hand hole cover 10, gasification room 11, bearing bracket 12, last rolling bearing group 13, motor 14, stuffing box packing 15, labyrinth seal cover 16, broach axle sleeve 17, Gland 18, Stuffing box 19, balancing drum 20, rotor main shaft 21, impeller 22, stage casing.
Embodiment
This vertical single suction multistage centrifugal liquid chlorine pump as shown in the figure, it is that the domestic present hydraulic model of advanced vertical single suction multistage centrifugal pump is applied to liquid chlorine pump.
This vertical single suction multistage centrifugal liquid chlorine pump is made up of inducer (3), stage casing (22), outlet section (7), rotor main shaft (20), impeller (21), balancing drum (19), balance tube (1) etc., it is characterized in that:
Described rotor main shaft (20) adopts two point supportings, rolling bearing group (12) supporting that fulcrum is made up of two rolling bearings being located in the bearing bracket (11) on it, its underpart then is mated supporting by the tetrafluoro sliding bearing assembly parts (2) of being located at pump housing bottom; This tetrafluoro sliding bearing assembly parts (2) is made up of sliding bearing sleeve, plain bearing housing and sliding bearing.
Secondly, on the pump housing between described outlet section (7) and the inducer (3), be nested with a vacuum cold insulation chuck (4).
Its three, in the top position of Stuffing box (18) gasification room that is connected with main pump body (10) is set, and by the bearing bracket (11) that gasification room top fixedly installs, form a liquid chlorine pump transmission interlocking system of one up and down.
Simultaneously, the more important thing is that two cover motive sealing system---liquid phase sealing system and gas phase sealing systems are arranged in gasification room (10) round the setting of gasification room (10).The sealing of wherein said liquid phase is formed by two sections: form by being close to the balancing drum (19) that sub-propeller (8) that outlet section (7) locates and below be placed on the rotor main shaft (20) for first section; Second section then by being located at the sub-propeller top and stretching into the Stuffing box (18) of gasification room (10) inner chamber and the packing seal that stuffing box packing (14), Gland (17) are formed.
Described gas phase sealing also is divided into two sections, it is positioned at the hypomere that gasification room (10) contacts with chlorine, mainly by being located at the labyrinth seal (labyrinth seal) that gasification room (10) central sleeve places rotor main shaft (20) and broach axle sleeve (16) and labyrinth seal circle (15) to form; The packing seal that its epimere then is made up of the stuffing box packing of stretching into bearing bracket portion (14) and Gland (17), and the main body section at the gasification room (10) of these upper and lower two sections seal junctions is being provided with a nitrogen perfusing hole perpendicular to seal section (or taking out the negative pressure mouth) d.
In addition, respectively be provided with one group in gasification room (10) both sides and can open hand hole cover (9), be provided with a waste gas sewage draining exit e who communicates with gasification room (10) inner chamber in gasification room (10) and junction, pump housing top.
Operation of the present utility model is as follows:
Liquid chlorine is inhaled in the pump from a mouth, after the multistage pressurization of impeller (21), is forced out outside the pump from the b mouth.Vacuum system links to each other with the C mouth, makes stage casing (22) outside by the vacuum cold insulation.Nitrogen enters labyrinth seal from the d mouth, thereby seals chlorine, and waste gas is discharged from the e mouth, enters useless chlorine processing system.When gasification room (10) when pressure is very little, d mouth and negative pressure system are connected, and the e mouth is sealed, and useless chlorine enters negative pressure system and handles.
Claims (2)
1, a kind of vertical single suction multistage centrifugal liquid chlorine pump is made up of rotor main shaft (20), impeller (21), balancing drum (19), balance tube (1), inducer (3), outlet section (7), stage casing (22), it is characterized in that:
A, described rotor main shaft (20) adopt two point supportings---and fulcrum is by last rolling bearing group (12) supporting of being located in the bearing bracket (11) on it, and its underpart then is mated supporting by the tetrafluoro sliding bearing assembly parts (2) of being located at pump housing bottom;
Be nested with a vacuum cold insulation chuck (4) on the pump housing between B, described outlet section (7) and the inducer (3);
On the rotor main shaft (20) that C, described outlet section (7) are located a Stuffing box (18) is set, the top position of this Stuffing box (18), a gasification room (10) is being set, the position, upper end of this gasification room (10) is being provided with bearing bracket (11), goes up the fixing rolling bearing group (12) that goes up at bearing bracket (11).
2, vertical single suction multistage centrifugal liquid chlorine pump as claimed in claim 1, it is characterized in that described gasification room (10) both sides are provided with a hand hole cover (9), be provided with a waste gas sewage draining exit e who communicates with gasification room (10) inner chamber simultaneously in itself and junction, pump main body top; Be provided with the inlet d that inculcates nitrogen or take out negative pressure at gasification room (10) with upper bearing support (11) place of combining; In addition, liquid phase sealing configuration and gas phase sealing configuration on the position, above and below of described gasification room (10), have been designed; Wherein said liquid phase sealing configuration is formed by two sections: form by being close to the balancing drum (19) that sub-propeller (8) that outlet section (7) locates and below be placed on the rotor main shaft (20) for first section, second section then by being located at the sub-propeller top and stretching into the packing seal that Stuffing box (18), stuffing box packing (14), the Gland (17) of gasification room (10) inner chamber are formed; Described gas phase sealing also is divided into two sections, it is positioned at hypomere that gasification room (10) contacts with chlorine mainly by being located at the labyrinth seal (labyrinth seal) that gasification room (10) central sleeve places broach axle sleeve (16) on the rotor main shaft (20) and labyrinth seal circle (15) to form, the packing seal that its epimere then is made up of the stuffing box packing of stretching into bearing bracket portion (14) and Gland (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02276820 CN2547914Y (en) | 2002-07-04 | 2002-07-04 | Vertical single-suction multi-stage centrifugal liquid chlorine pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02276820 CN2547914Y (en) | 2002-07-04 | 2002-07-04 | Vertical single-suction multi-stage centrifugal liquid chlorine pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2547914Y true CN2547914Y (en) | 2003-04-30 |
Family
ID=33740593
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02276820 Expired - Fee Related CN2547914Y (en) | 2002-07-04 | 2002-07-04 | Vertical single-suction multi-stage centrifugal liquid chlorine pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2547914Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101818735A (en) * | 2010-05-10 | 2010-09-01 | 杭州振兴工业泵制造有限公司 | High-speed multistage turbine vacuum pump and evacuation method thereof |
| 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 |
-
2002
- 2002-07-04 CN CN 02276820 patent/CN2547914Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101818735A (en) * | 2010-05-10 | 2010-09-01 | 杭州振兴工业泵制造有限公司 | High-speed multistage turbine vacuum pump and evacuation method thereof |
| CN101818735B (en) * | 2010-05-10 | 2011-06-29 | 杭州振兴工业泵制造有限公司 | High-speed multistage turbine vacuum pump and evacuation method thereof |
| 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 |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |