CN2835666Y - Zero leakage technology for pump - Google Patents
Zero leakage technology for pump Download PDFInfo
- Publication number
- CN2835666Y CN2835666Y CN 200520135903 CN200520135903U CN2835666Y CN 2835666 Y CN2835666 Y CN 2835666Y CN 200520135903 CN200520135903 CN 200520135903 CN 200520135903 U CN200520135903 U CN 200520135903U CN 2835666 Y CN2835666 Y CN 2835666Y
- Authority
- CN
- China
- Prior art keywords
- pump
- pump shaft
- mechanical seal
- ring
- impeller nut
- 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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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model relates to a zero leakage technology for a pump, which solve the problems of the cooling and the leakage of a mechanical seal for a pump. The utility model can be used for a series of alkali pumps, such as a chlorine gas pump, an IHJ, etc. which are used in the chemical industry department at present. A stationary ring of the mechanical seal is installed on the outer part of a pump body by the technology, and is connected with a moving ring assembly of the mechanical seal, which is installed on a pump shaft. A cooling flow passage is processed in the pump shaft, the moving ring of the mechanical seal is communicated with the combining point of the inner part of the stationary ring and a negative pressure zone of a pump through a hole passage which is processed in the center of an impeller nut.
Description
Affiliated technical field
The utility model relates to a kind of pump zero leakage technology.This technology has solved cooling, the leakage problem of mechanical seal for pump, can solve the poisonous medium of serial alkali pumps such as the present chlorine gas pump that uses of chemical industry department, IHJ and the leakage problem of toxic gas effectively.
Background technique
At present, during known pump work, because the running up of pump shaft, mechanical sealing linkage ring and the very high temperature of stationary ring friction-produced, and the binding site place of rotating ring and stationary ring makes the mechanical seal quickening of wearing and tearing because medium can't flow and can not effectively cool off; Impurity in the medium can't flow away at rotating ring and stationary ring junction simultaneously, very easily forms fault, has also accelerated the wearing and tearing of mechanical seal.In addition, because the outward pressure of seal point is directly proportional with delivery side of pump pressure, along with the wearing and tearing of mechanical seal, dielectric leakage is always unavoidable.Cause the waste of raw material like this, the serious harmful matter that also may cause is leaked, and both befouling environment jeopardizes people's life safety again.
Summary of the invention
For the shortcoming that overcomes existing mechanical seal for pump quick abrasion, easily leaks, the utility model provides a kind of technology, after adopting this technology on the pump, can realize the zero leakage of medium and internal gas, and prolong the working life of pump.
The technological scheme that the utility model solves this technical problem employing is: the stationary ring of mechanical seal is installed in the outside of the pump housing, join with the mechanical sealing linkage ring assembly that is installed on the pump shaft, be processed with a runner in the pump shaft, be connected to form a coolant flow channel that is communicated with in the duct at impeller nut center with processing, be communicated with the junction, inside of the interior negative pressuren zone of pump and mechanical sealing linkage ring and stationary ring.Like this because coolant flow channel has been communicated with the junction, inside of interior negative pressuren zone (region of no pressure) of pump and the dynamic and static ring of mechanical seal, when pump work, the outward pressure of seal point by original be directly proportional with delivery side of pump pressure to become with delivery side of pump pressure be inversely proportional to, medium in the pump housing just forms junction, inside the flowing to the pump negative pressuren zone by mechanical sealing linkage ring and stationary ring, so both solved the cooling problem of mechanical seal, take away the impurity of mechanical seal inner ring again, also stoped leaking of poisonous medium and gas simultaneously.
The beneficial effects of the utility model are to realize the zero leakage of interior medium of pump and gas, the working life of prolongation pump, protection environment and personal safety.
Description of drawings
Below in conjunction with accompanying drawing and example the utility model is further specified.
Fig. 1 is the structure principle chart of the utility model in RHJ series alkali pump.
Among the figure 1, pump cover; 2, impeller; 3, impeller nut; 4, the pump housing; 5, mechanical sealing linkage ring assembly; 6, pump bracket; 7, pump shaft; 8, support; 9, mechanical sealing static ring; 10, pump shaft coolant flow channel; 11, impeller nut central duct; 12, negative pressuren zone in the pump.
Specific embodiments
In the drawings, mechanical sealing static ring (9) is installed in the outside of the pump housing (4), mechanical sealing linkage ring assembly (5) is fastened on the pump shaft (7), the junction, inside of mechanical sealing linkage ring (5) and mechanical sealing static ring (9) is pointed in the ingress of pump shaft coolant flow channel (10), the outlet of pump shaft coolant flow channel (10) is positioned at pump shaft (7) spindle nose center, join with impeller nut central duct (11), impeller nut central duct (11) runs through impeller nut (3), connects the outlet and the interior negative pressuren zone (12) of pump of pump shaft coolant flow channel (10).
Claims (2)
1. pump zero leakage technology, comprise the pump housing, pump shaft, impeller nut, mechanical seal, it is characterized in that: the stationary ring of mechanical seal is installed in the outside of the pump housing, join with the mechanical sealing linkage ring assembly that is installed on the pump shaft, be processed with a runner in the pump shaft, be connected to form a coolant flow channel that is communicated with in the duct at impeller nut center with processing, be communicated with the junction, inside of the interior negative pressuren zone of pump and mechanical sealing linkage ring and stationary ring.
2. pump zero leakage technology according to claim 1, it is characterized in that: pump shaft coolant flow channel inlet is positioned at the pump shaft sidewall, point to the junction, inside of mechanical sealing linkage ring and stationary ring, outlet is positioned at pump shaft spindle nose center, the impeller nut central duct runs through impeller nut, connects negative pressuren zone in outlet of pump shaft coolant flow channel and the pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520135903 CN2835666Y (en) | 2005-11-13 | 2005-11-13 | Zero leakage technology for pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520135903 CN2835666Y (en) | 2005-11-13 | 2005-11-13 | Zero leakage technology for pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2835666Y true CN2835666Y (en) | 2006-11-08 |
Family
ID=37300321
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520135903 Expired - Fee Related CN2835666Y (en) | 2005-11-13 | 2005-11-13 | Zero leakage technology for pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2835666Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103452896A (en) * | 2013-09-18 | 2013-12-18 | 江苏联成新流体科技有限公司 | Negative pressure dual-stage leakage-free seal device |
| CN105443395A (en) * | 2015-12-12 | 2016-03-30 | 重庆润跃机械有限公司 | Cavitation preventing water pump |
| CN109185017A (en) * | 2018-10-17 | 2019-01-11 | 中国科学院地质与地球物理研究所 | Generator front end assemblies and shaft |
-
2005
- 2005-11-13 CN CN 200520135903 patent/CN2835666Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103452896A (en) * | 2013-09-18 | 2013-12-18 | 江苏联成新流体科技有限公司 | Negative pressure dual-stage leakage-free seal device |
| CN105443395A (en) * | 2015-12-12 | 2016-03-30 | 重庆润跃机械有限公司 | Cavitation preventing water pump |
| CN105443395B (en) * | 2015-12-12 | 2019-05-28 | 重庆润跃机械有限公司 | Anti- cavitation water pump |
| CN109185017A (en) * | 2018-10-17 | 2019-01-11 | 中国科学院地质与地球物理研究所 | Generator front end assemblies and shaft |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20061108 Termination date: 20091214 |