CN203783951U - Port ring sealing mechanism for centrifugal pump - Google Patents
Port ring sealing mechanism for centrifugal pump Download PDFInfo
- Publication number
- CN203783951U CN203783951U CN201420011499.1U CN201420011499U CN203783951U CN 203783951 U CN203783951 U CN 203783951U CN 201420011499 U CN201420011499 U CN 201420011499U CN 203783951 U CN203783951 U CN 203783951U
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- CN
- China
- Prior art keywords
- choma
- port ring
- centrifugal pump
- sealing mechanism
- ring 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
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Abstract
The utility model provides a port ring sealing mechanism for a centrifugal pump. An upper port ring is arranged on a pump body at an impeller inlet; a lower port ring is arranged at a corresponding position on an impeller below the upper port ring; a certain gap is formed between opposite surfaces of the upper port ring and the lower port ring; opposite surfaces of the upper port ring and the lower port ring have tooth socket structures respectively; the tooth socket structure of the upper port ring is matched with the tooth socket structure of the lower port ring. The port ring sealing mechanism has the beneficial effects that opposite surfaces of the upper port ring and the lower port ring of the centrifugal pump have tooth socket structures, so that the sealing effect can be enhanced, and the leakage amount of liquid in a pump cavity is reduced; by adopting the tooth socket structures, particles in liquid can be prevented from enter into the apertures of the port ring mechanism, so that the port rings are prevented from being damaged, and the upper and lower port rings are prevented from being stuck together.
Description
Technical field
The utility model relates to centrifugal pump technical field of sealing technology, refers to especially a kind of centrifugal pump mouth ring sealing mechanism.
Background technique
On centrifugal pump, impeller is positioned at the pump chamber of the pump housing, is provided with control ring seal mechanism in the ingress of impeller, is used for preventing the liquid backflow in centrifugal pump.
The opposing side of the choma up and down in old-fashioned centrifugal pump mouth ring sealing mechanism was all flat in the past, and the following normal operation that ensures impeller, between upper and lower choma, needed to have certain gap, and this control ring seal mechanism can cause liquid backflow leakage rate to increase.
In addition due to the variation of bearing accuracy, be easy to cause dwindling of gap between upper and lower choma, even easily cause mutually killing between impeller and the pump housing, and then cause centrifugal pump to damage quitting work; In addition, in the time having particulate matter to enter the gap between upper and lower choma, also easily cause upper and lower opening czermak space to dwindle, even cause killing of impeller and the pump housing, damage centrifugal pump.
Therefore, in the urgent need to a kind of control ring seal mechanism of mutually killing between impeller and the pump housing of can preventing.
Model utility content
The utility model proposes a kind of centrifugal pump mouth ring sealing mechanism, solved centrifugal pump mouth ring sealing mechanism in prior art and easily caused the problem of mutually killing between liquid backflow leakage, impeller and the pump housing.
The technical solution of the utility model is achieved in that
A kind of centrifugal pump mouth ring sealing mechanism is provided with choma on the pump housing at impeller eye place, and on the impeller below upper choma, corresponding position is provided with lower choma; Between described upper choma and the opposing side of described lower choma, be provided with certain gap; The opposing side of described upper choma and described lower choma is respectively tooth slot structure, and the tooth slot structure of described upper choma and the tooth slot structure of described lower choma are suitable.
Gap length between described upper choma and the opposing side of described lower choma is 0.1～0.15mm.
In described tooth slot structure, the degree of depth of teeth groove is 1～2mm.
In described tooth slot structure, the width of teeth groove is 2～3mm.
Interference fit or welding between described upper choma and the described pump housing.
Interference fit or welding between described lower choma and described impeller.
Working principle of the present utility model is as follows:
In centrifugal pump running, the liquid in pump chamber is not easy to reflux by the tooth slot structure between upper and lower choma at mouth ring sealing structure place.
In the time having granule in liquid to enter the gap between upper and lower choma, granule can be fallen in the lower tooth cavity of tooth slot structure, can not snap into the gap between upper and lower choma, thereby can not injure upper and lower choma.
The beneficial effects of the utility model are:
By the opposing side of the upper and lower choma of centrifugal pump is all set to tooth slot structure, can strengthen sealing effect, reduce the vent flow of pump intracavity liquid;
Tooth slot structure can also prevent the gap of the particulate matter entry port ring structure in liquid, is unlikely to hurt choma, and therefore upper and lower choma also can not kill mutually.
Brief description of the drawings
In order to be illustrated more clearly in the utility model embodiment or technological scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the overall structure sectional view of the centrifugal pump with control ring seal mechanism described in the utility model;
Fig. 2 is the local structure for amplifying schematic diagram of Fig. 1 at A place.
In figure:
1, the pump housing, 2, impeller, 3, upper choma, 4, lower choma.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technological scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment who obtains under creative work prerequisite, all belong to the scope of the utility model protection.
Embodiment is as shown in Figure 1 and Figure 2 known, and a kind of centrifugal pump mouth ring sealing mechanism described in the utility model is provided with choma 3 on the pump housing 1 of impeller 2 ingress, and on the impeller 2 below upper choma 3, corresponding position is provided with lower choma 4; Between upper choma 3 and the opposing side of lower choma 4, be provided with certain gap; Upper choma 3 is respectively tooth slot structure with the opposing side of lower choma 4, and the tooth slot structure of the tooth slot structure of upper choma 3 and lower choma 4 is suitable.
Gap length between described upper choma 3 and the opposing side of lower choma 4 is 0.1～0.15mm.
In described tooth slot structure, the degree of depth of teeth groove is 1～2mm.
In described tooth slot structure, the width of teeth groove is 2～3mm.
Interference fit or welding between described upper choma 3 and the pump housing 1.
Interference fit or welding between described lower choma 4 and impeller 2.
The working principle of above-mentioned centrifugal pump mouth ring sealing mechanism is as follows:
In centrifugal pump running, the liquid in pump chamber is not easy to reflux by the tooth slot structure between upper and lower choma at mouth ring sealing structure place.
In the time having granule in liquid to enter the gap between upper and lower choma, granule can be fallen in the lower tooth cavity of tooth slot structure, can not snap into the gap between upper and lower choma, thereby can not injure upper and lower choma.
In sum, the utility model, by the opposing side of the upper and lower choma of centrifugal pump is all set to tooth slot structure, can strengthen sealing effect, reduces the vent flow of pump intracavity liquid;
Tooth slot structure can also prevent the gap of the particulate matter entry port ring structure in liquid, is unlikely to hurt choma, and therefore upper and lower choma also can not kill mutually.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any amendment of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (6)
1. a centrifugal pump mouth ring sealing mechanism, is characterized in that, on the pump housing (1) of impeller (2) ingress, is provided with upper choma (3), and the upper corresponding position of impeller (2) in upper choma (3) below is provided with lower choma (4); Between the opposing side of described upper choma (3) and described lower choma (4), be provided with certain gap; Described upper choma (3) is respectively tooth slot structure with the opposing side of described lower choma (4), and the tooth slot structure of the tooth slot structure of described upper choma (3) and described lower choma (4) is suitable.
2. a kind of centrifugal pump mouth ring sealing mechanism according to claim 1, is characterized in that, the gap length between described upper choma (3) and the opposing side of described lower choma (4) is 0.1～0.15mm.
3. a kind of centrifugal pump mouth ring sealing mechanism according to claim 1, is characterized in that, in described tooth slot structure, the degree of depth of teeth groove is 1～2mm.
4. a kind of centrifugal pump mouth ring sealing mechanism according to claim 1, is characterized in that, in described tooth slot structure, the width of teeth groove is 2～3mm.
5. a kind of centrifugal pump mouth ring sealing mechanism according to claim 1, is characterized in that, interference fit or welding between described upper choma (3) and the described pump housing (1).
6. a kind of centrifugal pump mouth ring sealing mechanism according to claim 1, is characterized in that, interference fit or welding between described lower choma (4) and described impeller (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420011499.1U CN203783951U (en) | 2014-01-08 | 2014-01-08 | Port ring sealing mechanism for centrifugal pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420011499.1U CN203783951U (en) | 2014-01-08 | 2014-01-08 | Port ring sealing mechanism for centrifugal pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203783951U true CN203783951U (en) | 2014-08-20 |
Family
ID=51320143
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420011499.1U Expired - Fee Related CN203783951U (en) | 2014-01-08 | 2014-01-08 | Port ring sealing mechanism for centrifugal pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203783951U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105570186A (en) * | 2016-03-04 | 2016-05-11 | 浙江工业大学 | Single-stage centrifugal pump capable of achieving self balance of axial force |
| CN111379744A (en) * | 2018-12-25 | 2020-07-07 | 三菱重工业株式会社 | Centrifugal rotary machine |
| CN111828370A (en) * | 2020-06-28 | 2020-10-27 | 江苏大学 | Radial sealing opening ring of centrifugal pump |
| CN113153771A (en) * | 2019-12-31 | 2021-07-23 | Lg电子株式会社 | Compressor and turbo cooler having the same |
| CN114483636A (en) * | 2020-11-13 | 2022-05-13 | Lg电子株式会社 | Compressor and cooler comprising same |
| CN114483637A (en) * | 2020-11-13 | 2022-05-13 | Lg电子株式会社 | Compressor and cooler comprising same |
-
2014
- 2014-01-08 CN CN201420011499.1U patent/CN203783951U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105570186A (en) * | 2016-03-04 | 2016-05-11 | 浙江工业大学 | Single-stage centrifugal pump capable of achieving self balance of axial force |
| CN111379744A (en) * | 2018-12-25 | 2020-07-07 | 三菱重工业株式会社 | Centrifugal rotary machine |
| CN111379744B (en) * | 2018-12-25 | 2022-03-29 | 三菱重工业株式会社 | Centrifugal rotary machine |
| CN113153771A (en) * | 2019-12-31 | 2021-07-23 | Lg电子株式会社 | Compressor and turbo cooler having the same |
| CN111828370A (en) * | 2020-06-28 | 2020-10-27 | 江苏大学 | Radial sealing opening ring of centrifugal pump |
| CN114483636A (en) * | 2020-11-13 | 2022-05-13 | Lg电子株式会社 | Compressor and cooler comprising same |
| CN114483637A (en) * | 2020-11-13 | 2022-05-13 | Lg电子株式会社 | Compressor and cooler comprising same |
| CN114483636B (en) * | 2020-11-13 | 2023-12-12 | Lg电子株式会社 | Compressor and cooler comprising same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140820 Termination date: 20160108 |