CN203809369U - Horizontal type axial flow circulating delivery pump structure - Google Patents
Horizontal type axial flow circulating delivery pump structure Download PDFInfo
- Publication number
- CN203809369U CN203809369U CN201420163676.8U CN201420163676U CN203809369U CN 203809369 U CN203809369 U CN 203809369U CN 201420163676 U CN201420163676 U CN 201420163676U CN 203809369 U CN203809369 U CN 203809369U
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- pump
- impeller
- stuffing box
- axial flow
- pump case
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Abstract
The utility model discloses a horizontal type axial flow circulating delivery pump structure. The structure comprises a pump case, impellers and a pump shaft penetrating through the pump case, wherein a stuffing box, a bearing box and a transition coupler are mounted on the pump shaft in a sleeving manner in sequence; the impellers are mounted at the end far away from the transition coupler and fixed with an impeller gland at the end part of the pump shaft; a reducer connecting pipe is connected at the end, close to the impeller gland, of the pump case; a parallel quadrature pipe is connected with the outlet of the reducer connecting pipe; an inlet hole is formed in the parallel quadrature pipe. According to the utility model, the inlet hole is formed in the parallel quadrature pipe, so that when inspected, all the parts of the pump can be dismounted and subjected to antitone inserting mounting through entering the mouth of the pump from the inlet hole, dismounting the impeller gland, the pump shaft, the transition coupler, the bi-parting stuffing box, the padding of the bi-parting stuffing box and all the connecting bolts of the bearing box, therefore, the procedures of dismounting and mounting can be greatly reduced during the inspection, and the maintenance efficiency can be improved.
Description
Technical field
The utility model belongs to chemical production technical field, relates to a kind of liquid conveying machinery equipment, specifically relates to a kind of horizontal axial flow circulation delivery pump structure.
Background technique
Axial-flow pump is to lean on the blade of spinning roller impeller to make liquid along the pump of axial direction conveying to the active force of liquid generation.That a kind of vane rotary that utilizes produces the water pump of the large flow low-lift of thrust (lift) work to water body, have vertical, horizontal, inclined and tubular several, in the applications of low lift, large flow and extensively.But traditional horizontal axial-flow pump impeller outer diameter place body is overall structure, pump work is after a period of time, and due to impeller high speed circular Zhou Xuanzhuan, the mobile pump housing position heavy wear that makes impeller outer diameter place of output medium, causes pump performance to decline and cisco unity malfunction.Traditional horizontal axial-flow pump on the Stuffing box position of the pump housing more in addition adopts Spielpassung between the pump housings and axle sleeve, but diametric clearance wearing and tearing between axle sleeve and the pump housing surpass after about 8mm, and seal leakage is serious, will cause equipment to stop.And have to change after pump housing wearing and tearing, greatly increased the user cost of pump.
For addressing the above problem, the Chinese patent that publication number is CN202031838U discloses a kind of Horizontal chemical engineering axial-flow pump, and this axial-flow pump is, at the pump housing and impeller cooperation place, a short circuit is set, and short circuit is connected with pump housing flange by bolt; At the pump housing and Stuffing box position, set up a wear ring, wear ring periphery and the pump housing are by interference fit, interior week and axle sleeve Spielpassung.This technological scheme is by short circuit is set, and is bolted, and dismantles more convenient while making operation and maintenance, by wear ring, lengthen contact distance simultaneously, reduce pressure medium, guaranteed the sealing reliability at filler place, reduced and processed or change the higher cost that the pump housing causes.But the equipment of operation always has working life, during negligence of management, always break down, particularly in the continuous flow procedure of modernization bigger device, if the crucial large equipment of the system and device of independent operating breaks down.Therefore equipment is safeguarded always and overhauls in running, yet, in above-mentioned horizontal axial-flow pump, after each parts need being dismantled one by one when maintenance, just can overhaul, after maintenance is good, ressemble again, this workload and very big on the impact of producing, greatly reduces manufacturing efficiency again.Therefore traditional horizontal axial-flow pump can not meet the demand of modern production.
Especially in Large-scale Phosphorus Chemical Manufacture, the large-size horizontal axial flow circulation transfer pump of one 7000 cubic meters/hour above Phosphoric Acid Concentration systems, if breaking down, bearing, axle sleeve or pump shaft etc. need dismantle, assemble maintenance, its maintenance workload is large, repair time is long, and maintenance is dangerous high, simultaneously very big on the impact of producing in maintenance process, cause manufacturing efficiency significantly to decline, cost of production increases.Therefore, how developing that a kind of easy access, when maintenance are short, easy-to-operat, horizontal axial-flow pump that equipment operating efficiency is high, is modernization industry production technical field problem demanding prompt solution.
Model utility content
The utility model, for traditional axial flow pump existing deficiency in maintenance process, provides a kind of horizontal axial flow circulation delivery pump structure.By this axial-flow pump, can simplify the dismounting process to pump in maintenance process, the working efficiency of pump is provided greatly, reduce production costs and reduce danger.
The utility model is achieved by following technical solution.
A kind of horizontal axial flow circulation delivery pump structure, comprise pump case, impeller and through the pump shaft of pump case, on pump shaft, be set with successively stuffing box, bearing housing and transition coupling, described impeller is arranged on away from transition coupling one end, and fix by arranging with the impeller gland of pump shaft end, described pump case is connected with reducing connecting tube near impeller gland one end, in the outlet of reducing connecting tube, is connected with straight parallel cornue, on described straight parallel cornue, is provided with enter hole.
Described pump case and straight parallel cornue top are all provided with expansion joint.
Between described stuffing box and impeller, be provided with front shaft sleeve.
Described stuffing box is opposite opened stuffing box.
It is that the dual phase steel of CD4MCu is made that described pump case and impeller all adopt material.
The beneficial effects of the utility model are:
Compared with prior art, the utility model is by arranging import on the straight parallel cornue at axial-flow pump, during maintenance, personnel enter after pumping hole by enter hole, only need impeller gland to remove, again pump shaft transition coupling, opposite opened stuffing box and filler thereof are removed, after each connecting bolt of dismounting bearing housing, each component of pump can be taken out and remove and carry out inverted sequence and insert installation, dismounting and installation procedure while having greatly reduced maintenance, improve overhaul efficiency, complete the groundwork amount of repairing in primary fault and can save more than 2/3 workload; Because impeller and pump case polish flat after adopting spot welding fixing, so not only can not cause damage to equipment itself, but also can guarantee accurately assemblage gap and the position degree of impeller and pump case.Adopt the utility model to make the repair quality of equipment and efficiency obtain obviously and efficiently promoting, reduced greatly the field operation time, job safety risk is controlled largely reliably, and the low difficulty of operation technique reduces greatly.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation;
Fig. 2 is the A place structure for amplifying adaptation figure of Fig. 1;
Fig. 3 is the B place structure for amplifying schematic diagram of Fig. 1.
In figure: 1-pump case, 2-pump shaft, 3-bearing housing, 4-impeller, 5-impeller gland, 6-front shaft sleeve, 7-stuffing box, 8-transition coupling, 9-reducing connecting tube, 10-straight parallel cornue, 11-expansion joint, 12-enter hole.
Embodiment
Below in conjunction with accompanying drawing, further describe the technical solution of the utility model, but described in claimed scope is not limited to.
As shown in Figure 1 to Figure 3, a kind of horizontal axial flow circulation delivery pump structure described in the utility model, comprise pump case 1, impeller 4 and through the pump shaft 2 of pump case 1, on pump shaft 2, be set with successively stuffing box 7, bearing housing 3 and transition coupling 8, described impeller 4 is arranged on away from transition coupling 8 one end, and fixing by arranging with the impeller gland 5 of pump shaft 2 ends, described pump case 1 is connected with reducing connecting tube 9 near impeller gland 5 one end, in 9 outlets of reducing connecting tube, be connected with straight parallel cornue 10, on described straight parallel cornue 10, be provided with enter hole 12.By enter hole 12 is set, personnel can enter by enter hole 12 that pump case 1 is interior to be checked and reconditioning work pump case 1 inside and impeller 4, for main equipment carries out inner member inspection maintenance, create favorable conditions.Personnel enter after pump inlet by enter hole 12, only impeller gland 5 are removed, then by after pump shaft transition coupling 8, opposite opened stuffing box 7 and filler thereof, dismounting bearing housing 3 each connecting bolts, pump assembly can be taken out and remove and carry out inverted sequence and insert installation.By axial-flow pump architecture advances, greatly simplified maintenance craft, make the repair quality of equipment and efficiency obtain obviously and efficiently promoting, reduced greatly the field operation time, job safety risk is controlled largely reliably.
Described pump case 1 and straight parallel cornue 10 tops are all provided with expansion joint 11.Be convenient to like this removing and installing of upper and lower equipment and pipeline, and can play flow of fluid time, the buffer function to equipment, pipeline anti-vibration.
Between described stuffing box 7 and impeller 4, be provided with front shaft sleeve 6.The function of axle sleeve 6 is mainly to play the wearing and tearing that protection pump shaft 2 is not subject to stuffing box packing, plays the effect of location impeller 4 radial positions simultaneously.
It is that the dual phase steel of CD4MCu is made that described pump case 1 and impeller 4 all adopt material.Use this material to have wear-resisting, decay resistance and repair welding preferably, the repair welding by this material can directly be fixed on impeller 4 spot welding on the driving position in pump case 1.Due at large-size horizontal axial-flow pump, included impeller 4 and pump case 1, because handing over long (more than approximately 10 years) working life, are not generally changed, and therefore adopt material to be the dual phase steel of CD4MCu, the working life that can greatly improve axial-flow pump.
Described stuffing box 7 is opposite opened stuffing box.Adopt opposite opened stuffing box, the symmetrical plane of its Gland dimidiation, can radially directly removing from stuffing box 7, easy access dismounting and replacing filler.
The caliber of described straight parallel cornue 10 is 1800mm.Making like this has the sufficient space that can make human body enter inside processing in pipe.
Described impeller 4 adopts spot welding to be fixed in pump case 1.Because adopting the dual phase steel of CD4MCu, makes in impeller 4, this material has wear-resisting, decay resistance and repair welding preferably, therefore electric welding not only can not cause damage to equipment itself, but also can guarantee accurately assemblage gap and the position degree of impeller 4 and pump case 1, install soldering point is polished flat with angle grinding machine.
Contrasting the phosphoric acid flash concentration system of using in tratitional technology is below described further the technical program.
Phosphoric acid flash concentration system in tratitional technology, the feature of its axial flow recycle pump is large flow, low lift, to surpass 7800 hours above high running rate equipment year working time, due to its impeller, pump case general equal reaching more than 10 years in working life, and be worth costliness, therefore from manufacturing mechanism, configure and can not select complete machine standby.Generally, affecting this kind equipment operation period, need to remove the main easily damaged parts of repairing in carrying out be axle sleeve, bearing, bearing housing and pump shaft.Because equipment is subject to the narrow limitation of working space after being connected with systemic circulation liquid DN1800 conveyance conduit, and equipment is originally the little layout of the large health of top in its structure, and pump case end face 100mm is longer than on its impeller gland top, carrying out this type of is connected with large pipeline to weigh in the large equipment fault of 4-5 ton and repaiies, comprehensive relatively to influence time, safe construction situation, task difficulty and the workload of producing, it is inadvisable carrying out overall pulling down repairing, also uneconomic.Therefore, when normal dimension maintenance or repairing, all take not remove maximum pump case part, routine work scheme and man-hour be: (1) is because being longer than pump case end face 100mm in impeller gland top, so before must dismounting pump case front end DN1800L5000 straight parallel cornue, upper two pairs of flanges, with jack by straight parallel cornue reach 200-300mm, just the reducing connecting tube of pump case 1 front end DN700-DN1800 can be removed to approximately 12 man-hours; (2) dismounting pump impeller gland and impeller, approximately 4 man-hours; (3) extract front shaft sleeve out, after dismounting pump shaft transition coupling, opposite opened stuffing box and filler thereof, each connecting bolt of dismounting bearing housing, the coupled main shaft of bearing housing is extracted out to approximately 4 hours simultaneously; (4) by the front shaft sleeve of removing, pump shaft transition coupling, opposite opened stuffing box and filler thereof are allocated and transported to safety inspection district and are repaired, dismounting repair procedures approximately 8 hours.
Above technique inverted sequence is to mounting process process, ideally, total 48 the number of working processess that at least need consuming time of dismounting-reparation-installation.The reducing connecting tube 9 of DN700-DN1800 is heavy 1.5 tons, and impeller 4 is heavy 0.6 ton, and 2 tons of total load-bearing, all need to carry out lifting job, therefore meet fortuitous event in dismounting and installation process, expectation can delay 4-8 man-hour.
Adopt horizontal axial flow circulation delivery pump structure described in the utility model, by impeller is fixed on pump case, removed the cumbersome procedure of dismantling and installing in traditional routine work scheme (1) from; As shown in Figure 1, owing to being provided with enter hole 12 on DN1800 straight parallel cornue 10, personnel enter after pump inlet by enter hole 12, only impeller gland 5 is removed, by after pump shaft transition coupling 8, opposite opened stuffing box 7 and filler thereof, dismounting bearing housing 3 each connecting bolts, pump assembly can be taken out and remove and carry out inverted sequence and insert installation again.By axial-flow pump architecture advances, greatly simplified maintenance craft, make the repair quality of equipment and efficiency obtain obviously and efficiently promoting, reduced greatly the field operation time, job safety risk is controlled largely reliably.Greatly save the repair time, adopted the technical program, in approximately 8 hours, just can complete the maintenance to complete equipment.
Claims (5)
1. a horizontal axial flow circulation delivery pump structure, comprise pump case (1), impeller (4) and through the pump shaft (2) of pump case (1), on pump shaft (2), be set with successively stuffing box (7), bearing housing (3) and transition coupling (8), described impeller (4) is arranged on away from transition coupling (8) one end, and fixing by arranging with the impeller gland (5) of pump shaft (2) end, it is characterized in that: described pump case (1) is connected with reducing connecting tube (9) near impeller gland (5) one end, in reducing connecting tube (9) outlet, be connected with straight parallel cornue (10), on described straight parallel cornue (10), be provided with enter hole (12).
2. a kind of horizontal axial flow circulation delivery pump structure according to claim 1, is characterized in that: described pump case (1) and straight parallel cornue (10) top are all provided with expansion joint (11).
3. a kind of horizontal axial flow circulation delivery pump structure according to claim 1, is characterized in that: between described stuffing box (7) and impeller (4), be provided with front shaft sleeve (6).
4. a kind of horizontal axial flow circulation delivery pump structure according to claim 1, is characterized in that: described stuffing box (7) is opposite opened stuffing box.
5. a kind of horizontal axial flow circulation delivery pump structure according to claim 1, is characterized in that: it is that the dual phase steel of CD4MCu is made that described pump case (1) and impeller (4) all adopt material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420163676.8U CN203809369U (en) | 2014-04-04 | 2014-04-04 | Horizontal type axial flow circulating delivery pump structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420163676.8U CN203809369U (en) | 2014-04-04 | 2014-04-04 | Horizontal type axial flow circulating delivery pump structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203809369U true CN203809369U (en) | 2014-09-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420163676.8U Expired - Fee Related CN203809369U (en) | 2014-04-04 | 2014-04-04 | Horizontal type axial flow circulating delivery pump structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203809369U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104638854A (en) * | 2014-12-20 | 2015-05-20 | 重庆德马高速设备研究所 | Bearing detaching ring for variable-frequency high-speed motor |
-
2014
- 2014-04-04 CN CN201420163676.8U patent/CN203809369U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104638854A (en) * | 2014-12-20 | 2015-05-20 | 重庆德马高速设备研究所 | Bearing detaching ring for variable-frequency high-speed motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: GUIZHOU KAILIN GROUP CO., LTD. Free format text: FORMER NAME: KAILIN (GROUP) CO., LTD., GUIZHOU |
|
| CP03 | Change of name, title or address |
Address after: No. 237 Jinyang City Kailin Lake District Road 550009 Guizhou city of Guiyang Province Patentee after: Phosphorylcholine group limited-liability company is opened in Guizhou Address before: 550002 Guizhou city in Guiyang Province, the Haitian Road No. 203 building 12 layer Patentee before: Guizhou Kailin (Group) Co.,Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140903 Termination date: 20200404 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |