CN208858631U - A kind of sealing structure of vertical multiple-stage conduit centrifugal pump - Google Patents
A kind of sealing structure of vertical multiple-stage conduit centrifugal pump Download PDFInfo
- Publication number
- CN208858631U CN208858631U CN201821172605.9U CN201821172605U CN208858631U CN 208858631 U CN208858631 U CN 208858631U CN 201821172605 U CN201821172605 U CN 201821172605U CN 208858631 U CN208858631 U CN 208858631U
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- CN
- China
- Prior art keywords
- cylinder
- connection ring
- annular protrusion
- stainless steel
- cyclic annular
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- 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 title claims abstract description 30
- 125000004122 cyclic group Chemical group 0.000 claims abstract description 22
- 229910001220 stainless steel Inorganic materials 0.000 claims abstract description 18
- 239000010935 stainless steel Substances 0.000 claims abstract description 18
- 239000000463 material Substances 0.000 claims description 8
- 125000003003 spiro group Chemical group 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 7
- 238000009434 installation Methods 0.000 abstract description 3
- 238000005476 soldering Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000012856 packing Methods 0.000 description 1
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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model provides a kind of sealing structure of vertical multiple-stage conduit centrifugal pump, it is characterized in that, it includes cylinder, cylinder top is equipped with sealing cover, it is protruded equipped with upper annular sealing cover lower end, upper connection ring is equipped between upper annular protrusion and cylinder, upper connection ring outer lower portion is equipped with chamfering, recess is equipped with upper O-ring seal outward for upper annular protrusion inside, the pump housing is equipped with below cylinder, pump housing upper end is equipped with lower cyclic annular protrusion, lower connection ring is equipped between lower cyclic annular protrusion and cylinder, lower connection ring outer upper is equipped with chamfering, lower cyclic annular protrusion Inside To Outside recess is equipped with lower O-ring seal；Utility model has the advantages that the soldering stainless steel plate on the outside of stainless steel outer cylinder, guarantee the circularity of outer cylinder by turnery processing, and install two O-rings additional on seal and water inlet-outlet segment, when pump is suppressed, the pressure of water passes to stainless steel outer cylinder, stainless steel outer cylinder slightly expanding distortion compresses O-ring, so that leakproofness is better after pump housing installation.
Description
Technical field
The utility model relates to centrifugal pump field more particularly to a kind of sealing structures of vertical multiple-stage conduit centrifugal pump.
Background technique
Existing vertical multiple-stage conduit centrifugal pump, by adding 6 to arrive at outer cylinder and the contact surface of water inlet-outlet segment and seal
4 turnbuckles are screwed into water inlet-outlet segment by 12mm wide, the rubber sheet gasket of 3 millimeters thicks, are then evenly arranged on seal by tightening
4 nuts compress seal, seal transmits the force to rubber sheet gasket, outer cylinder, and pass through the tolerance control of pump inner body
The final decrement for realizing gasket of system.Although do so it is feasible, pump inner body accumulated error can not protect completely sometimes
Card.I.e. enabled that accumulated error is completely secured, sealed pressure is also unable to satisfy the use of certain operating conditions.It will be close but if being only
Packing is changed to O-ring, since the outer ring circularity precision of cylinder not enough cannot achieve.
Utility model content
The purpose of the utility model is to provide a kind of sealing structures of vertical multiple-stage conduit centrifugal pump.
To achieve the goals above, the technical solution of the utility model is:
A kind of sealing structure of vertical multiple-stage conduit centrifugal pump, which is characterized in that it includes cylinder, and the cylinder is stainless
Steel material, the cylinder are arranged along the vertical direction, and the top of the cylinder is equipped with sealing cover, and the lower end of the sealing cover is equipped with upper
Ring-type protrusion, the upper annular convex hole are arranged around the outer rim of cylinder top, the inside of upper annular protrusion and cylinder it is outer
Connection ring is fixed between side, the upper connection ring is stainless steel material, and the lower part on the outside of the upper connection ring is equipped with
Angle, the top of upper annular protrusion inside is recessed outward is equipped with upper annular hollow out, is equipped in the upper annular hollow out upper O-shaped
Sealing ring, the lower section of the cylinder are equipped with the pump housing, and the side of the pump housing is equipped with inlet and outlet pipes, and the upper end of the pump housing is equipped with down
Ring-type protrusion, outer rim of the lower cyclic annular convex hole around cylinder bottom end are arranged, the inside of the lower cyclic annular protrusion and cylinder it is outer
Lower connection ring is fixed between side, the top on the outside of the lower connection ring is equipped with chamfering, and the lower connection ring is stainless steel
Matter, the lower part of the lower cyclic annular protrusion inside is recessed outward is equipped with lower cyclic annular hollow out, is equipped with down in the lower cyclic annular hollow out O-shaped
Sealing ring；
The downward hollow out of Upper vertical of the pump housing other side is equipped with bolt hole, and the spiro keyhole position is in lower cyclic annular protrusion
Outside, the bolt hole is interior to be equipped with turnbuckle, and the head of the turnbuckle is connect with bolt hole, and the turnbuckle is along vertical
Direction setting, the tail portion of the turnbuckle extend vertically through sealing cover setting, and the top of the sealing cover is equipped with nut, the spiral shell
Mother set is connected to the tail portion of turnbuckle.
Utility model has the advantages that the soldering stainless steel plate on the outside of stainless steel outer cylinder, is guaranteed outer by turnery processing
The circularity of cylinder, and install two O-rings additional on seal and water inlet-outlet segment, when pump is suppressed, the pressure of water passes to stainless steel
Outer cylinder, stainless steel outer cylinder slightly expanding distortion compress O-ring, so that leakproofness is better after pump housing installation.
Detailed description of the invention
Fig. 1 is the overall structure diagram of the utility model；
Fig. 2 is the partial structural diagram of O-ring under the utility model；
Fig. 3 is the partial structural diagram of O-ring on the utility model.
Appended drawing reference:
1 cylinder
2 sealing covers
3 upper annulars protrusion
Connection ring on 4
5 upper annular hollow outs
O-ring seal on 6
7 pump housings
8 inlet and outlet pipes
9 lower cyclic annular protrusions
10 lower connection rings
11 lower cyclic annular hollow outs
12 lower O-ring seals
13 bolts hole
14 turnbuckles
15 nuts.
Specific embodiment
The technical solution of the utility model is clearly and completely described below in conjunction with attached drawing, it is clear that described
Embodiment is the utility model a part of the embodiment, instead of all the embodiments.Based on the embodiments of the present invention, originally
Field those of ordinary skill every other embodiment obtained without making creative work belongs to practical
Novel protected range.
The utility model discloses a kind of sealing structures of vertical multiple-stage conduit centrifugal pump, which is characterized in that such as Fig. 1 institute
Show, it includes cylinder 1, and the cylinder 1 is stainless steel material, and the cylinder 1 is arranged along the vertical direction, the top of the cylinder 1
Equipped with sealing cover 2, as shown in figure 3, the lower end of the sealing cover 2 is equipped with upper annular protrusion 3, the upper annular protrusion 3 surround cylinder
The outer rim on 1 top of body is arranged, and is fixed with connection ring 4, institute between the inside of the upper annular protrusion 3 and the outside of cylinder 1
Stating connection ring 4 is stainless steel material, and the lower part in upper 4 outside of connection ring is equipped with chamfering, 3 inside of upper annular protrusion
Top is recessed outward is equipped with upper annular hollow out 5, is equipped with upper O-ring seal 6 in the upper annular hollow out 5.
As depicted in figs. 1 and 2, the lower section of the cylinder 1 is equipped with the pump housing 7, and the side of the pump housing 7 is equipped with inlet and outlet pipes 8,
The upper end of the pump housing 7 is equipped with lower cyclic annular protrusion 9, and outer rim of the lower cyclic annular protrusion 9 around 1 bottom end of cylinder is arranged, under described
Lower connection ring 10 is fixed between the inside of ring-type protrusion 9 and the outside of cylinder 1, the top in lower 10 outside of connection ring is set
There is chamfering, the lower connection ring 10 is stainless steel material, and the lower part of lower cyclic annular 9 inside of protrusion is recessed outward is equipped with lower ring
Shape hollow out 11, the lower cyclic annular hollow out 11 is interior to be equipped with lower O-ring seal 12.
As shown in Figures 2 and 3, the downward hollow out of Upper vertical of 7 other side of the pump housing is equipped with bolt hole 13, the bolt
Hole 13 is located at the outside of lower cyclic annular protrusion 9, is equipped with turnbuckle 14, the head of the turnbuckle 14 and spiral shell in the bolt hole 13
Keyhole 13 connects, and the turnbuckle 14 is arranged along the vertical direction, and the tail portion of the turnbuckle 14 extends vertically through sealing cover 2 and sets
It sets, the top of the sealing cover 2 is equipped with nut 15, and the nut 15 is socketed on the tail portion of turnbuckle 14, and nut 15 is tightened on
When on sealing cover 2, turnbuckle 14 locks sealing cover 2 in the upper end of cylinder 1.
When it is implemented, first process turning on the outer ring of connection ring 4 and lower connection ring 10 with reach can mounting O-shaped sealing
The circularity requirement of circle, and the roughness for controlling outer ring does not exceed 3.2 microns, on the head of upper connection ring 4 and lower connection ring 10
Outside processes a chamfering, prevents from cutting upper O-ring seal 6 or lower O-ring seal 12 when installation cylinder 1 bad.Fit on is O-shaped close
Before seal 6 and lower O-ring seal 12, it is just O-shaped close to protect that a small gap is formed between stainless steel cylinder 1 and inlet and outlet pipes 8
The normal mounting of seal and cylinder 1, gap width is generally between 0.3-0.5mm, and when the pump housing 7 is suppressed, the pressure of water is transmitted
To cylinder 1, the slightly expanding distortion of cylinder 1 does not influence the sealing performance of the pump housing 7 not only, sealing performance is more preferable instead.
Finally, it should be noted that the above various embodiments is only to illustrate the technical solution of the utility model, rather than it is limited
System；Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should
Understand: it is still possible to modify the technical solutions described in the foregoing embodiments, or to some or all of
Technical characteristic is equivalently replaced；And these are modified or replaceed, it does not separate the essence of the corresponding technical solution, and this is practical new
The range of each embodiment technical solution of type.
Claims (1)
1. a kind of sealing structure of vertical multiple-stage conduit centrifugal pump, which is characterized in that it includes cylinder, and the cylinder is stainless steel
Material, the cylinder are arranged along the vertical direction, and the top of the cylinder is equipped with sealing cover, and the lower end of the sealing cover is equipped with upper ring
Shape protrusion, the upper annular convex hole are arranged around the outer rim of cylinder top, the inside of the upper annular protrusion and the outside of cylinder
Between be fixed with connection ring, the upper connection ring is stainless steel material, and the lower part on the outside of the upper connection ring is equipped with chamfering,
The top of upper annular protrusion inside is recessed outward is equipped with upper annular hollow out, is equipped in the upper annular hollow out upper O-shaped close
Seal, the lower section of the cylinder are equipped with the pump housing, and the side of the pump housing is equipped with inlet and outlet pipes, and the upper end of the pump housing is equipped with lower ring
Shape protrusion, outer rim of the lower cyclic annular convex hole around cylinder bottom end are arranged, the inside of the lower cyclic annular protrusion and the outside of cylinder
Between be fixed with lower connection ring, the top on the outside of the lower connection ring be equipped with chamfering, the lower connection ring be stainless steel material,
The lower part of the lower cyclic annular protrusion inside is recessed outward is equipped with lower cyclic annular hollow out, is equipped with down in the lower cyclic annular hollow out O-shaped close
Seal；
The downward hollow out of Upper vertical of the pump housing other side is equipped with bolt hole, and the spiro keyhole position is outer in lower cyclic annular protrusion
Side, the bolt hole is interior to be equipped with turnbuckle, and the head of the turnbuckle is connect with bolt hole, and the turnbuckle is along vertical side
To setting, the tail portion of the turnbuckle extends vertically through sealing cover setting, and the top of the sealing cover is equipped with nut, the nut
It is socketed on the tail portion of turnbuckle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821172605.9U CN208858631U (en) | 2018-07-24 | 2018-07-24 | A kind of sealing structure of vertical multiple-stage conduit centrifugal pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821172605.9U CN208858631U (en) | 2018-07-24 | 2018-07-24 | A kind of sealing structure of vertical multiple-stage conduit centrifugal pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208858631U true CN208858631U (en) | 2019-05-14 |
Family
ID=66413040
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821172605.9U Expired - Fee Related CN208858631U (en) | 2018-07-24 | 2018-07-24 | A kind of sealing structure of vertical multiple-stage conduit centrifugal pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208858631U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI832305B (en) * | 2022-06-24 | 2024-02-11 | 大井泵浦工業股份有限公司 | Leak-proof pump |
-
2018
- 2018-07-24 CN CN201821172605.9U patent/CN208858631U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI832305B (en) * | 2022-06-24 | 2024-02-11 | 大井泵浦工業股份有限公司 | Leak-proof 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: 20190514 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |