CN2314129Y - Multifunctional pipeline pump with high coaxality - Google Patents
Multifunctional pipeline pump with high coaxality Download PDFInfo
- Publication number
- CN2314129Y CN2314129Y CN 97222527 CN97222527U CN2314129Y CN 2314129 Y CN2314129 Y CN 2314129Y CN 97222527 CN97222527 CN 97222527 CN 97222527 U CN97222527 U CN 97222527U CN 2314129 Y CN2314129 Y CN 2314129Y
- Authority
- CN
- China
- Prior art keywords
- pump
- guide bearing
- pump cover
- axiality
- sealing
- 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
Links
- 238000007789 sealing Methods 0.000 claims abstract description 64
- 238000001816 cooling Methods 0.000 claims abstract description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- 238000011010 flushing procedure Methods 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 3
- 238000005299 abrasion Methods 0.000 abstract 1
- 239000007788 liquid Substances 0.000 description 6
- 230000003068 static effect Effects 0.000 description 6
- 239000002826 coolant Substances 0.000 description 5
- 230000008878 coupling Effects 0.000 description 4
- 238000010168 coupling process Methods 0.000 description 4
- 238000005859 coupling reaction Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000013011 mating Effects 0.000 description 3
- 238000005555 metalworking Methods 0.000 description 3
- 230000004323 axial length Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000000110 cooling liquid Substances 0.000 description 2
- 230000001050 lubricating effect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000005068 cooling lubricant Substances 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 230000001077 hypotensive effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model provides a multifunctional pipeline pump with high coaxial degree, relating to a structure improvement of a pipe pump. The utility model is characterized in that a mechanical sealing guide bearing is arranged on a pump shaft near the impeller end; the mechanical sealing static-ring sealing ring is positioned in an inner hole at the lower end of the guide bearing; a pump-cover sealing cavity is formed between the guide bearing and a pump cover arranged around the guide bearing, and the guide bearing is connected with a conduit through a through hole arranged on the pump cover. Thus, the utility model has the advantages of reasonable structure, convenient assembly and disassembly, high coaxial degree, small abrasion and noise, long service life, good effect of flushing, cooling and circulation, low cost, etc. The utility model can also be applied to occasions of conveying normal temperature or high temperature medium with corrosiveness or poor lubricity, etc.
Description
The utility model relates to a kind of pump class of carrying liquid medium, especially to the structure improvement of pipeline mounted pump.
Pipeline mounted pump is a kind of vertical pump, because of its have easy for installation, characteristics such as floor space is little, can save a large amount of capital investments and operating cost, and is good in economic efficiency, and being used increasingly extensively.
But at present general pipeline mounted pump is not established guide bearing, radially all the determining of pump shaft by rigid coupling with axially locating, so the coaxality of pump shaft be difficult to be guaranteed, the lost of life of Sealing, thus cause the reliability decrease of pump.
There is the people this to be done improvement for this reason, above impeller, increased guide bearing, make it to have improved above-mentioned shortcoming significantly in the water of carrying normal temperature, the occasion of wet goods good medium.But, this pump is corrosive or during liquid that lubricity is bad, guide bearing etc. just are easily damaged, and make its using scope that bigger restriction be arranged when being used to carry.
The purpose of this utility model provides a kind of rational in infrastructure, convenient disassembly, using scope is wide, user cost is low, especially when the liquid that conveying is corrosive or lubricity is bad, still can make guide bearing can obtain lubricated fully and cooling, become the high-axiality multipurpose pipe pump of reliable operation, permanent operation.
Another purpose of the present utility model is can be according to the operating conditions of the pump of the concrete fed sheet of a media of pipeline mounted pump, and convenient, conversion or adjust flushing, the type of cooling aptly is so that this pump can be applicable to different high temperature medias.
Major scheme of the present utility model is: be equipped with the guide bearing that nearly impeller end is provided with mechanical seal on described pump shaft; The stationary ring seal ring of described mechanical seal is positioned in the endoporus of guide bearing lower end; Described guide bearing and be located between pump cover around it and constitute the pump cover Seal cage, this chamber joins by through hole and the conduit of being located on the pump cover.
Because the utility model designs guide bearing between upper-lower seal dexterously, makes the axle bush of guide bearing and fed sheet of a media isolated; And guide bearing, on form a lubricating cavity between sealing and the sealing seat, hold lubricating and cooling agent therebetween, make bearing can obtain lubricated fully and cooling.
Usually, can be provided with axle bush in the described guide bearing, described through hole is upward to be located on the pump cover, and joins through the suction port of the conduit and the pump housing.Be beneficial to wash mechanical seal, be beneficial to the air scavenge in the pump cover Seal cage, also be beneficial to the axial force that reduces impeller simultaneously.
On pump cover, as required several through holes can be set.For example can on pump cover, be provided with the through hole that the discharge opening through the conduit and the pump housing joins simultaneously, so that the high-pressure medium of pipeline mounted pump discharge opening is in conduit enters the pump cover Seal cage, and another through hole enters suction port than low pressure through conduit, so that more effectively mechanical seal is realized lubricated, flushing.
When the utility model is carried high temperature media, pass to motor in order to stop high temperature, influence its working life, can be with the high-pressure medium of pipeline mounted pump outlet end through conduit, join with heat exchanger, the medium after the cooling in conduit enters the pump cover Seal cage, enters pump intake by above-mentioned road again.That is to say, on the conduit that the through hole on the described pump cover and pump housing discharge opening join, be serially connected with heat exchanger, can also realize cooling, cooling simultaneously to parts such as pump covers.
In addition, in pump cover, be provided with the water cycle cooling chamber isolated with the pump cover Seal cage; This cooling chamber can be the independent closed conduit shape cavity that is provided with, and also can be provided with groove shape body on pump cover, partly uses nut fastening or integrally welded another of pump cover again, so that produce.In order to prevent that cooling water from oozing mixed possibility from the fed sheet of a media of mating face between pump cover two-part and pump, the groove shape body opening surface of described pump cover can be vertically to, thereby make it to be in the outside (referring to accompanying drawing 5) of pump cover Seal cage with the mating face of another part of pump cover, on the mating face, and be provided with static seal, thereby prevent this mixed possibility of oozing effectively.
At the sealing seat of being located at above the guide bearing is hollow structure, and is provided with a pair of circulation port above sealing seat, by the Circulation pipe that is attached thereto, makes with the isolated sealing seat chamber (24) of fed sheet of a media to constitute the independently circulatory system.
For ease of dismounting, on the spring seat of mechanical seal, be provided with keyway, and be connected with pump shaft by key.Mechanical seal also can be adopted the sealing of single spring mechanical, and sealing is fairly simple, can be without spring seat, and spring directly is fixed on the wheel hub of impeller, or be clamped on the pump shaft, rotating ring is driven by spring, at this moment can not adorn key on the pump shaft.
Therefore, the utility model is keeping on the characteristics basis of general pipeline mounted pump, has simple and reasonable for structurely, and mounting or dismounting are convenient, the coaxality height, vibration, wearing and tearing and noise are less, long service life, characteristics such as user cost is low, especially the structure of the set cavity that respectively circulates of the utility model, can select for use independently of one another, or conversion or adjust Placement as required, with its Applicable scope of further expansion (operating conditions such as different fed sheet of a media kinds and temperature).
Fig. 1 is a kind of main TV structure schematic representation of the present utility model.
Fig. 2 is the guide bearing of Fig. 1 and the partial enlarged drawing of hermetic unit.
Fig. 8 is the principal section figure of a kind of pump cover structure in the utility model.
Fig. 4 is that the A of Fig. 3 is to view.
Fig. 5 is the pump structure schematic representation that the utility model uses another kind of pump cover.
Below by embodiment, the utility model is described specifically.
Guide bearing (4) is located at mechanical seal (3b) and sealing seat (6), goes up between the sealing (3a), and be installed in the middle annular shrinkage pool of pump cover (8), location, lower end surface by shrinkage pool in the middle of external cylindrical surface and the pump cover, lower end surface by sealing seat (6) compresses and is fixed on the pump cover (8), and static seal (29) sealing is arranged between sealing seat (8) and the guide shaft pump (4).The endoporus of guide bearing (4) has the axle bush (5) of a thin walled cylinder shape, and axle bush is by the bearing material manufacturing, and the mechanical seal (3b) that is fastened in the endoporus of guide bearing (4) with its lower end forms an integral body.
Fig. 2 is the local enlarged diagram of guide bearing, sealing seat and upper and lower sealing.Many springs of unbalanced type internally mounted mechanical seal is adopted in last sealing (3a), and it is made up of stationary ring (35), stationary ring seal ring (34), seal ring of moving ring (40), spring (37), spring seat (38), stop pin (41) set screw (39) etc.The stationary ring seal ring is contained in the endoporus of sealing seat (6), inner cylindrical surface and plane positioning by this hole, this cylndrical surface and plane and stationary ring seal ring (34) have been formed a static seal structure, prevent that the metalworking coolant in the sealing seat chamber (24) from leaking, stationary ring (35) is located by stationary ring seal ring (34), stop pin (41) stops stationary ring (35) to rotate, and stationary ring seal ring (34) is made by elastic material, so stationary ring (35) has certain floatability.Spring seat (38) is fastened on the pump shaft (1) by set screw (39), the spring seat inner hollow, spring (37) and rotating ring (36) promptly are contained in this cavity, because spring (37) is in compressive state, so be pressed on the stationary ring (35) by throw-out collar (43), rotating ring (86), its surface of contact is the rotary seal face of this mechanical seal, rotating ring (36) seals by seal ring of moving ring (40) with pump shaft, rotating ring (36) is driven by spring seat (38), rotates synchronously with axle.Last sealing (3a) prevents that the metalworking coolant in the sealing seat chamber (24) from leaking.Last sealing also can be used external mechanical seal instead, or rubber oil sea.But the sealing of oil sealing is relatively poor, and the metalworking coolant leakage rate is bigger, and working life is also shorter.
Mechanical seal as shown in Figure 2 (3b) is many springs of balance type internally mounted mechanical seal, and its structure is identical with last sealing (3a) basically.For the ease of mounting or dismounting, the spring seat (38) of mechanical seal (3b) can move axially on pump shaft (1), and key (42) is housed on the pump shaft (1), and it drives spring seat (38), rotates synchronously with axle (1).Mechanical seal (3b) between impeller (10) and guide bearing, the circular hole below impeller hub end face and guide bearing and end face location, sealing seat (6) is a hollow structure, by flanged surface and seam with double-screw bolt be fastened on guide bearing (4) above; Sealing seat has an annular space above (6), is the installing and locating face (as shown in Figures 1 and 2) of last sealing (3a) upper end.Sealing seat (6) is gone up between sealing (3a) and the guide bearing and has been formed a sealing seat chamber (24), the bottom of guide bearing (4) is sealed by mechanical seal (3b), so sealing seat chamber (24) promptly isolate fully with fed sheet of a media, the top of sealing seat (6) has two nut bore, can be according to the situation of pump work, load onto conduit (44) respectively, as the passage of last sealing (3a), guide bearing (4) cooling-lubricant.This liquid also cools off pump shaft (1) simultaneously.Work because the axle bush (5) in the guide bearing (4) is in good lubrication circumstances, so the life-span is long, reliable operation, and pressure that allows and speed amass greatlyyer, the size of guide bearing also can be littler.If guide bearing (4) is all used the bearing material manufacturing, then can omit axle bush (5), but cost of production is with higher.Because guide bearing (4) centering effect reliably just can guarantee the coaxality of the axle of pump shaft (1) and motor (16), thereby makes pump work more steady, noise is littler, and the sealing of sealing is more reliable, and the life-span is longer.
In order to dismantle easily, guide bearing (4), sealing seat (6), last sealing (3a) all are located at the top of pump cover (8).Unclamp the nut on the sealing seat, by demounting bolt (30), can be sealing seat (6) axially upwards splitting out along pump shaft (1).Sealing (3a) is exposed on the pump shaft (1) on this moment, unclamps the set screw of sealing, can pull down sealing (3a), can axially take out guide bearing then, and mechanical seal (8a).Rigid coupling (2) is the separable type structure, and two bisections of coupling are fastening with screw (21), and it joins the axle of motor (16) together with pump shaft (1), and coaxial mutually; The axial length in gap is slightly larger than sealing seat (6) respectively between the diaxon, the axial length of last sealing (3a), mechanical seal (3b), guide bearing (4), so that above-mentioned part can pass through gap (17), and from radially splitting out.Motor cabinet (15) is the part of a hollow structure, dress motor (16) on it, it links to each other with pump cover (8) down, all use bolt, nut to compress each other, with flanged surface and seam location, the both sides of motor cabinet (15) have very big through hole (23), by this through hole, can take out coupling (2), sealing seat (6), go up sealing (3a), guide bearing (4), mechanical seal (3b).
Mechanical seal (3b) is in the pumped medium, for the capacity of reflux that reduces pump and the working pressure of mechanical seal (3b), wheel hub outer rim at impeller (10) fixedly is equipped with choma (12), it and be contained in and form a ring shaped axial gap (18) between the seal ring (13) on the sealing plate (9), play the throttling hypotensive effect, highly pressurised liquid in the restriction pump housing flows to pump cover Seal cage (25), this chamber is by pump cover (8), sealing plate (9) guide bearing (4) and mechanical seal (3b) form, communicate with the pump housing by gap (18), there are two to lead to outside through hole (31) on the interior hole circle wall of pump cover (8), communicate with two corresponding screws (19) on the pump cover respectively by (referring to accompanying drawing 3 and accompanying drawing 4).Screw (19) can connect conduit (14); Difference according to the character of fed sheet of a media, temperature, pressure can be selected the flushing scheme of different mechanical seal (3b).Example uses conduit (14) that screw (19) is connected with the suction port (28) of the pump housing (11) as shown in Figure 1, liquid in the pump cover Seal cage (25) is back in the suction port of the pump housing (11) through conduit (14), so both mechanical seal (3b) was played flushing, coolant exhaust effect, reduced the end thrust of rotor again, and remaining axial force is by the bearing balance of motor (16).When the medium temperature of pump conveying is higher, locate to connect conduit (14) at pump housing discharge opening (27), through cools down, after the orifice plate step-down, again the medium of cooling is flowed into pump cover Seal cage (25) through screw (19), be back to the suction port of the pump housing (11) again by screw (19) through conduit (14).Pump cover (8) closely links to each other with sealing plate (9), and pump cover (8) is positioned with external cylindrical surface in the circular hole of the pump housing (11), and the lower end surface of pump cover (8) is pressed on the last plane of sealing plate (9), and is fixed on the pump housing with double-screw bolt.Sealing plate (9) is positioned at external cylindrical surface and lower end surface on the circular hole and end face of the pump housing (11), with static seal (22) sealing, forms the pump cover water cooling chamber (26) of an annular thus between pump cover (8) and the sealing plate (9).It communicates with two screws (20) on the pump cover, and all can be connected the optional water of cooling liquid through conduit (cooling tube) with the external refrigeration circulation means.
The another kind of structure of pump cover (8) is shown in Fig. 5, forms a pump cover Seal cage (25) and pump cover water cooling chamber (26) equally.The junction plane of two-part pump cover is equipped with static seal (45) and static seal (22) respectively, leaks to prevent cooling liquid.
Claims (10)
1, a kind of high-axiality multipurpose pipe pump, form by pump and motor, the pump shaft that pump contains pump cover, sealing, impeller, the pump housing and is attached thereto, it is characterized in that being equipped with on described pump shaft (1) guide bearing (4) that nearly impeller end is provided with mechanical seal (3b), the stationary ring seal ring (34) of described mechanical seal (3b) is positioned in the endoporus of guide bearing (4) lower end; Described guide bearing and be located between pump cover (8) around it and constitute pump cover Seal cage (25), this chamber joins with conduit (14) by the through hole of being located on the pump cover (31).
2, the described high-axiality multipurpose pipe of claim 1 pump is characterized in that being provided with in the described guide bearing (4) axle bush (5); Described through hole (31) is upward to be located on the pump cover (8), and links to each other with the suction port (28) of the pump housing through conduit (14).
3, high-axiality multipurpose pipe pump as claimed in claim 1 or 2 is characterized in that being provided with simultaneously the through hole (31) that links to each other with the discharge opening (27) of the pump housing through conduit (14) on described pump cover (8).
4, high-axiality multipurpose pipe pump as claimed in claim 3 is characterized in that being serially connected with heat exchanger on the through hole on the described pump cover (31) and conduit (14) that pump housing discharge opening (27) links to each other.
5, high-axiality multipurpose pipe pump as claimed in claim 1 or 2 is characterized in that being provided with the water cycle cooling chamber (26) isolated with pump cover Seal cage (25) in described pump cover (8).
6, high-axiality multipurpose pipe pump as claimed in claim 3 is characterized in that being provided with the water cycle cooling chamber (26) isolated with pump cover Seal cage (25) in described pump cover (8).
7, high-axiality multipurpose pipe pump as claimed in claim 1 or 2, the sealing seat (6) that it is characterized in that being located at guide bearing (4) top is a hollow structure, and is provided with a pair of circulation port (7) in the top of sealing seat (6).
8, to it is characterized in that being located at the sealing seat (6) of guide bearing (4) top be hollow structure to high-axiality multipurpose pipe pump as claimed in claim 3, and be provided with a pair of circulation port (7) in the top of sealing seat (6).
9, to it is characterized in that being located at the sealing seat (6) of guide bearing (4) top be hollow structure to high-axiality multipurpose pipe pump as claimed in claim 5, and be provided with a pair of circulation port (7) in the top of sealing seat (6).
10, high-axiality multipurpose pipe pump as claimed in claim 1 or 2 is characterized in that being provided with keyway on the spring seat (38) of mechanical seal (3b), and is connected with pump shaft (1) by key (42).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97222527 CN2314129Y (en) | 1997-08-02 | 1997-08-02 | Multifunctional pipeline pump with high coaxality |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97222527 CN2314129Y (en) | 1997-08-02 | 1997-08-02 | Multifunctional pipeline pump with high coaxality |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2314129Y true CN2314129Y (en) | 1999-04-14 |
Family
ID=33937590
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97222527 Expired - Fee Related CN2314129Y (en) | 1997-08-02 | 1997-08-02 | Multifunctional pipeline pump with high coaxality |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2314129Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108194372A (en) * | 2018-02-10 | 2018-06-22 | 山东心传矿山机电设备有限公司 | Amphibious vertical sand pump |
-
1997
- 1997-08-02 CN CN 97222527 patent/CN2314129Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108194372A (en) * | 2018-02-10 | 2018-06-22 | 山东心传矿山机电设备有限公司 | Amphibious vertical sand pump |
| CN108194372B (en) * | 2018-02-10 | 2024-03-22 | 山东心传矿山机电设备有限公司 | Amphibious vertical sand pump |
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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: JIALI SCIENCE & TECHNOLOGY DEVELOPMENT CO., LTD., Free format text: FORMER NAME OR ADDRESS: QU SHENHUA |
|
| CP03 | Change of name, title or address |
Address after: Industrial district Guali town in Hangzhou city of Zhejiang province Xiaoshan District 311241 Patentee after: Zhejiang Jilali Science & Technology Development Co., Ltd. Address before: No. 404, 132 East Road, labour Road, Zhejiang, Hangzhou Patentee before: Ji Shenhua |
|
| 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 |