CN207961040U - A kind of single-stage double-suction middle-opening formula centrifugal pump - Google Patents
A kind of single-stage double-suction middle-opening formula centrifugal pump Download PDFInfo
- Publication number
- CN207961040U CN207961040U CN201820167930.XU CN201820167930U CN207961040U CN 207961040 U CN207961040 U CN 207961040U CN 201820167930 U CN201820167930 U CN 201820167930U CN 207961040 U CN207961040 U CN 207961040U
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- machine
- pump
- pump shaft
- seal
- mechanical seal
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Abstract
The utility model is related to a kind of single-stage double-suction middle-opening formula centrifugal pumps, including the pump housing, pump shaft, impeller and pump cover, the impeller set is loaded on pump shaft, the pump shaft and impeller are located in the pump housing, the outer sheath of the pump shaft is equipped with driving end mechanical seal and anti-drive end mechanical seal, and the driving end mechanical seal is identical with anti-drive end mechanical seal structure, center line symmetrical setting relative to impeller；The driving end mechanical seal includes machine envelope axle sleeve, rotating ring, stationary ring, spring, machine sealed cover and machine envelope seal, and return pipe is communicated between the machine sealed cover of the driving end mechanical seal and the water cooled pipeline of the machine sealed cover of anti-drive end mechanical seal.The machine of the utility model seals the reasonable in design of seal, and good seal performance, service life is long, safe and reliable to operation.
Description
Technical field
The utility model is related to centrifuge pump technical field, and in particular to a kind of single-stage double-suction middle-opening formula centrifugal pump.
Background technology
Centrifugal pump has the diversified forms such as vertical, horizontal, single-stage, multistage, single suction, double suction, self-priming.Centrifugal pump is to utilize leaf
Wheel rotates and makes water that centrifugal movement occur and carry out work.Water pump is before activation, it is necessary to make to be full of water in pump case and suction hose, then
Start motor, pump shaft impeller and water is made to do high speed rotary motion, water occurs centrifugal movement, impeller outer edge is thrown toward, through whirlpool
The runner of shape pump case flows into the pressure pipe road of water pump.Current single-stage double-suction centrifugal pump is horizontal type middle-opened centrifugal pump, mainly by
The pump housing, pump cover, impeller, axis, axle sleeve, sealing ring and bearing block composition, entery and delivery port both sides, water below pump shaft axial line
Enter from water inlet, two-way is then divided to enter the pump housing from the water inlet of the left and right of pump two, is exported from water outlet after impeller is pressurized.
The advantages that single-stage double-suction middle-opening formula centrifugal pump is compact-sized with its, pump-out is big, lift is proper, be widely used in factory,
Mine, city, power station plumbing, field irrigation and various hydraulic engineerings.
The seal configuration of traditional single-stage double-suction middle-opening formula centrifugal pump is fairly simple, and to pumped (conveying) medium temperature requirement
Compare strictly, the leakproofness of high temperature lower seal is poor.
Utility model content
To solve the above problems, the purpose of this utility model is to provide a kind of single-stage double-suction middle-opening formula centrifugal pump, sealing
Performance is good, and service life is long, safe and reliable to operation.
To achieve the above object, the technical solution that the utility model is taken is：A kind of single-stage double-suction middle-opening formula centrifugal pump, packet
The pump housing, pump shaft, impeller and pump cover are included, the impeller set is loaded on pump shaft, and the pump shaft and impeller are located in the pump housing, the pump cover
It is fixedly connected on the top of the pump housing, the left end of the pump shaft is equipped with non-driven-end bearing component, and right end is equipped with drive end axle bearing portion
Part, pump shaft outer sheath between the impeller and non-driven-end bearing component are equipped with anti-drive end mechanical seal, the impeller and
Pump shaft outer sheath between drive end bearing component is equipped with driving end mechanical seal, the driving end mechanical seal and anti-drive end
Mechanical seal is sealedly attached between pump shaft and the pump housing, the driving end mechanical seal and anti-drive end mechanical seal structure phase
Together, relative to the center line symmetrical setting of impeller；
The driving end mechanical seal includes machine envelope axle sleeve, rotating ring, stationary ring, spring, machine sealed cover and machine envelope seal, institute
It states machine envelope axle sleeve to be set on the outside of pump shaft, the machine sealed cover and machine envelope seal are set in the outside that machine seals axle sleeve, described
Machine seals seal and is set between pump cover and the pump housing, and the machine sealed cover pressure is set to the outside of machine envelope seal, and the machine is sealed envelope
Be all provided with fluted on the inner ring surface of body and machine sealed cover, machine envelope axle sleeve is equipped with overhanging flange, the flange, rotating ring,
Stationary ring and spring retention are in groove；Machine envelope axle sleeve outer cylinder on the right side of the flange is equipped with annular slot, the rotating ring
The card base being clamped with annular slot is equipped on the downside of left end, the lateral surface of the rotating ring is equipped with arc groove, the right side of the rotating ring
End is equipped with rotating ring flange, and the spring is set in arc groove and the right end of spring is abutted with rotating ring flange, the stationary ring suit
The outside of axle sleeve is sealed in machine, elastomer is equipped between the rotating ring and stationary ring, is set between the right end and machine sealed cover of the stationary ring
There is O-ring seal；The machine sealed cover is equipped with water cooled pipeline, the machine sealed cover and anti-drive end of the driving end mechanical seal
It is communicated with return pipe between the water cooled pipeline of the machine sealed cover of mechanical seal.
Wherein, the non-driven-end bearing component is identical with the structure of drive end bearing component, center relative to impeller
Line is symmetrical arranged, and the drive end bearing component includes bearing, bearing gland, lubrication font, and the bearing gland is set in pump
The outside of axis, the bearing is set between pump shaft and bearing gland, and the inner ring of bearing is fixedly connected with pump shaft, the lubricating oil
Seat is fixedly arranged on the left side of bearing gland, and oil leab is equipped in the lubrication font, and the lower end of the oil leab is lower to the right to be tilted
It is corresponding with the support of bearing position of bearing afterwards.
Further, annular sleeve, the lubrication font and annular are equipped between the endoporus and pump shaft of the lubrication font
O-ring seal is equipped between bearing holder (housing, cover)；The annular sleeve is located between bearing and machine envelope axle sleeve.
Wherein, the arc groove on the outside of the rotating ring includes continuous arc-shaped concave segment, arc convex-segment and horizontal segment, described
Horizontal segment is higher than arc convex-segment, and horizontal Z-shaped snap-gauge is equipped between the rotating ring flange and the left end of horizontal segment, the spring
Right end is abutted with the right end stringer board for being connected to Z-shaped snap-gauge.
Compared with prior art, the utility model has the advantages that：The knot of the machine envelope seal of the utility model
Structure reasonable design, good seal performance, service life is long, safe and reliable to operation.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model embodiment one；
Fig. 2 is the partial enlarged view at A in Fig. 1；
Fig. 3 is the partial enlarged view at B in Fig. 1.
Reference sign：1, the pump housing；2, pump shaft；3, impeller；4, pump cover；5, machine seals axle sleeve；6, rotating ring；7, stationary ring；8、
Spring；9, machine sealed cover；10, machine seals seal；11, elastomer；12, return pipe；13, bearing；14, bearing gland；15, it lubricates
Font；16, annular sleeve.
Specific implementation mode
In order to make the technical problems, technical solutions and advantages to be solved by the utility model clearer, below in conjunction with attached drawing
And specific embodiment is described in detail.
It please refers to shown in Figure of description 1 and attached drawing 2, the utility model is a kind of single-stage double-suction middle-opening formula centrifugal pump, packet
The pump housing 1, pump shaft 2, impeller 3 and pump cover 4 are included, the impeller 3 is set on pump shaft 2, and the pump shaft 2 and impeller 3 are located at the pump housing 1
Interior, the pump cover 4 is fixedly connected on the top of the pump housing 1, and the left end of the pump shaft 2 is equipped with non-driven-end bearing component, and right end is set
There is drive end bearing component, 2 outer sheath of pump shaft between the impeller 3 and non-driven-end bearing component is equipped with anti-drive end machinery
Sealing, 2 outer sheath of pump shaft between the impeller 3 and drive end bearing component is equipped with driving end mechanical seal, the driving end
Mechanical seal and anti-drive end mechanical seal are sealedly attached between pump shaft 2 and the pump housing 1, the driving end mechanical seal and non-
Drive that end mechanical seal structure is identical, center line symmetrical setting relative to impeller 3.
The driving end mechanical seal includes that machine envelope axle sleeve 5, rotating ring 6, stationary ring 7, spring 8, machine sealed cover 9 and machine are sealed
Body 10, the machine envelope axle sleeve 5 are set in 2 outside of pump shaft, and the machine sealed cover 9 and machine envelope seal 10 are set in machine envelope axle sleeve
5 outside, the machine envelope seal 10 are set between pump cover 4 and the pump housing 1, and the pressure of machine sealed cover 9 is set to machine and seals seal 10
Outside, be all provided on the inner ring surface of machine envelope seal 10 and machine sealed cover 9 fluted, the machine envelope axle sleeve 5 is equipped with outer
The flange stretched, the flange, rotating ring 6, stationary ring 7 and spring 8 are placed in groove；Machine on the right side of the flange seals 5 column jacket of axle sleeve
Face is equipped with annular slot, and the card base being clamped with annular slot, the outside of the rotating ring 6 are equipped on the downside of the left end of the rotating ring 6
Face is equipped with arc groove, and the right end of the rotating ring 6 is equipped with rotating ring flange, and the spring 8 is set in arc groove and spring 8
Right end is abutted with rotating ring flange, and the stationary ring 7 is set in the outside of machine envelope axle sleeve 5, and bullet is equipped between the rotating ring 6 and stationary ring 7
Property body 11, between the right end and machine sealed cover 9 of the stationary ring 7 be equipped with O-ring seal；The machine sealed cover 9 is equipped with water cooling tube
Road is connected between the machine sealed cover of the driving end mechanical seal and the water cooled pipeline of the machine sealed cover of anti-drive end mechanical seal
There is return pipe 12.
In the present embodiment, the arc groove in 6 outside of the rotating ring includes continuous arc-shaped concave segment, arc convex-segment and level
Section, the horizontal segment are higher than arc convex-segment, and horizontal Z-shaped snap-gauge, institute are equipped between the rotating ring flange and the left end of horizontal segment
The right end for stating spring 8 is abutted with the right end stringer board for being connected to Z-shaped snap-gauge.
The non-driven-end bearing component is identical with the structure of drive end bearing component, center line pair relative to impeller 3
It includes bearing 13, bearing gland 14, lubrication font 15 to claim setting, the drive end bearing component, and the bearing gland 14 is set with
In the outside of pump shaft 2, the bearing 13 is set between pump shaft 2 and bearing gland 14, and the inner ring of bearing 13 is fixed with pump shaft 2 and connected
It connects, the lubrication font 15 is fixedly arranged on the left side of bearing gland 14, and oil leab, the lubricating oil are equipped in the lubrication font 15
It is corresponding with the support of bearing position of bearing 13 after the lower inclination to the right of the lower end in road.
Annular sleeve 16, the lubrication font 15 and annular are equipped between the endoporus and pump shaft 2 of the lubrication font 15
O-ring seal is equipped between bearing holder (housing, cover) 16；The annular sleeve 16 is located between bearing 13 and machine envelope axle sleeve 5.
The operation principle of mechanical seal is in the utility model：Machine envelope axle sleeve is sleeved on the outside of pump shaft, is used for pump shaft and pump
Between body, therefore the water entered in the pump housing will not be contacted with pump shaft.It is sealed between axle sleeve and machine envelope seal 10 into recessed by machine
Water in slot, is applied to flange with to the power in stationary ring direction, and spring pushes the trend of the oriented stationary ring movement of rotating ring, compression rotating ring and
Elastomer between stationary ring receives water to seal the impact force of axle sleeve to machine into row buffering, is equipped between stationary ring and machine sealed cover O-shaped close
Seal, the water in groove is flowed out via return pipe, while being cooled down to mechanical seal.
Above specific implementation mode is only the preferred embodiment of this creation, all in this wound not to limit this creation
Any modification, equivalent substitution, improvement and etc. done within the spirit and principle of work, should be included in this creation protection domain it
It is interior.
Claims (4)
1. a kind of single-stage double-suction middle-opening formula centrifugal pump, which is characterized in that including the pump housing (1), pump shaft (2), impeller (3) and pump cover
(4), the impeller (3) is set on pump shaft (2), and the pump shaft (2) and impeller (3) are located in the pump housing (1), the pump cover (4)
It is fixedly connected on the top of the pump housing (1), the left end of the pump shaft (2) is equipped with non-driven-end bearing component, and right end is equipped with driving end
Parts of bearings, pump shaft (2) outer sheath between the impeller (3) and non-driven-end bearing component are close equipped with anti-drive end machinery
Envelope, pump shaft (2) outer sheath between the impeller (3) and drive end bearing component is equipped with driving end mechanical seal, the driving
End mechanical seal and anti-drive end mechanical seal are sealedly attached between pump shaft (2) and the pump housing (1), and the driving terminal tool is close
Envelope center line symmetrical settings identical with anti-drive end mechanical seal structure, relative to impeller (3)；
The driving end mechanical seal includes machine envelope axle sleeve (5), rotating ring (6), stationary ring (7), spring (8), machine sealed cover (9) and machine
Seal (10) is sealed, the machine envelope axle sleeve (5) is set on the outside of pump shaft (2), the machine sealed cover (9) and machine envelope seal (10)
It is set in the outside of machine envelope axle sleeve (5), the machine envelope seal (10) is set between pump cover (4) and the pump housing (1), the machine envelope
Gland (9) pressure is set to the outside of machine envelope seal (10), and the machine seals on the inner ring surface of seal (10) and machine sealed cover (9)
Equipped with groove, the machine envelope axle sleeve (5) is equipped with overhanging flange, and the flange, rotating ring (6), stationary ring (7) and spring (8) hold
It is placed in groove；Machine envelope axle sleeve (5) outer cylinder on the right side of the flange is equipped with annular slot, under the left end of the rotating ring (6)
Side is equipped with the card base being clamped with annular slot, and the lateral surface of the rotating ring (6) is equipped with arc groove, the right side of the rotating ring (6)
End is equipped with rotating ring flange, and the spring (8) is set in arc groove and the right end of spring (8) is abutted with rotating ring flange, described quiet
Ring (7) is set in the outside of machine envelope axle sleeve (5), and elastomer (11), the stationary ring are equipped between the rotating ring (6) and stationary ring (7)
(7) O-ring seal is equipped between right end and machine sealed cover (9)；The machine sealed cover (9) is equipped with water cooled pipeline, the drive
It is communicated with return pipe between the machine sealed cover of moved end mechanical seal and the water cooled pipeline of the machine sealed cover of anti-drive end mechanical seal
(12)。
2. single-stage double-suction middle-opening formula centrifugal pump according to claim 1, which is characterized in that the non-driven-end bearing component
Center line symmetrical settings identical with the structure of drive end bearing component, relative to impeller (3), the drive end bearing component packet
Bearing (13), bearing gland (14), lubrication font (15) are included, the bearing gland (14) is set in the outside of pump shaft (2), described
Bearing (13) is set between pump shaft (2) and bearing gland (14), and the inner ring of bearing (13) is fixedly connected with pump shaft (2), described
Lubrication font (15) is fixedly arranged on the left side of bearing gland (14), and oil leab, the lubricating oil are equipped in the lubrication font (15)
It is corresponding with the support of bearing position of bearing (13) after the lower inclination to the right of the lower end in road.
3. single-stage double-suction middle-opening formula centrifugal pump according to claim 2, which is characterized in that described to lubricate the interior of font (15)
It is equipped with annular sleeve (16) between hole and pump shaft (2), is equipped between the lubrication font (15) and annular sleeve (16) O-shaped
Sealing ring；The annular sleeve (16) is located between bearing (13) and machine envelope axle sleeve (5).
4. single-stage double-suction middle-opening formula centrifugal pump according to claim 1, which is characterized in that the arc on the outside of the rotating ring (6)
Connected in star includes continuous arc-shaped concave segment, arc convex-segment and horizontal segment, and the horizontal segment is higher than arc convex-segment, and the rotating ring is convex
Horizontal Z-shaped snap-gauge, the right end of the spring (8) and the right end for being connected to Z-shaped snap-gauge are equipped between edge and the left end of horizontal segment
Stringer board abuts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820167930.XU CN207961040U (en) | 2018-01-31 | 2018-01-31 | A kind of single-stage double-suction middle-opening formula centrifugal pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820167930.XU CN207961040U (en) | 2018-01-31 | 2018-01-31 | A kind of single-stage double-suction middle-opening formula centrifugal pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207961040U true CN207961040U (en) | 2018-10-12 |
Family
ID=63736224
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820167930.XU Expired - Fee Related CN207961040U (en) | 2018-01-31 | 2018-01-31 | A kind of single-stage double-suction middle-opening formula centrifugal pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207961040U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112145439A (en) * | 2020-09-30 | 2020-12-29 | 徐国华 | Single-stage centrifugal pump |
-
2018
- 2018-01-31 CN CN201820167930.XU patent/CN207961040U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112145439A (en) * | 2020-09-30 | 2020-12-29 | 徐国华 | Single-stage centrifugal pump |
| CN112145439B (en) * | 2020-09-30 | 2022-04-08 | 东营市深蓝新材料有限公司 | Single-stage centrifugal pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181012 Termination date: 20200131 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |