CN205956074U - High temperature high pressure heat supply network circulation pump mechanical seal protection system - Google Patents
High temperature high pressure heat supply network circulation pump mechanical seal protection system Download PDFInfo
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- CN205956074U CN205956074U CN201620967262.XU CN201620967262U CN205956074U CN 205956074 U CN205956074 U CN 205956074U CN 201620967262 U CN201620967262 U CN 201620967262U CN 205956074 U CN205956074 U CN 205956074U
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- pressure
- mechanical seal
- protection system
- high temperature
- heat supply
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Abstract
The utility model provides a high temperature high pressure heat supply network circulation pump mechanical seal protection system, be equipped with the trompil on the pump cover of heat supply network circulating pump, trompil department welding has one section connecting pipe, the connecting pipe is connected with high -pressure relief pressure valve, and then connection four -way connection, four -way connection top connection pressure table, both ends are separately through high nip pipe connection cooler in addition, seal the chamber entrance at the machine and install a three way connection, one end and the high nip pipe connection behind the cooler, the external cleaned industry water of the other end. The utility model discloses a high temperature high pressure heat supply network circulation pump mechanical seal protection system not only can guarantee that mechanical seal in the regional safe operation of higher lift, can effectively stop female intraductal silt iron fillings again and get into quick -witted sealing to improve mechanical seal's life, guarantee the effectual operation of water pump safety.
Description
Technical field
This utility model is related to a kind of High Temperature High Pressure pumps for hot water supply net mechanical seal protection system.
Background technology
It is currently, there are a kind of mechanical seal cooling and lubricating system, it is directly to pass through four-way connection to fetch water from pump higher-pressure region,
Through threaded pipeline, by heat exchanger so that hot net water cooling is used for cooling mechanical seal.This kind of mode exists
Two larger shortcomings：First shortcoming is to use threaded connection mode between its pipeline and joint, and this mode couples
Limiting pressure is 1.0MPa, and the pressure medium of most circulation pump of heat-supply network pump higher-pressure region is frequently larger than 1.0MPa, therefore holds
Easily cause the leak of pipeline connection place, thus affecting normally effectively running of whole cooling water system, second shortcoming be pump first
During startup, in main pipe WATER AS FLOW MEDIUM, the silt comprising and iron filings easily pour mechanical seal with cooling water system, thus broken ring machine
The internal sound ring structure of envelope, causes destructive influences to the service life of mechanical seal, and the 3rd shortcoming is that pump is running
When, the minute impurities such as silt that pumped (conveying) medium comprises, iron filings easily block strainer screen, thus just affecting cooling water system
Often run.
Content of the invention
In order to solve the deficiency that existing pumps for hot water supply net mechanical seal cooling and lubricating system design exists, this utility model carries
For a kind of large-scale superhigh temperature supertension pumps for hot water supply net mechanical seal protection system, can not only ensure that mechanical seal is relatively soaring
The safe operation in journey region, can effectively prevent the silt iron filings in main pipe again and enter machine envelope, thus improving the use of mechanical seal
Life-span is it is ensured that water pump safely and effectively runs.
The scheme that this utility model solves that its technical problem adopted is：A kind of High Temperature High Pressure pumps for hot water supply net mechanical seal
Protection system, is provided with perforate on the pump cover of pumps for hot water supply net, and tapping is welded with one section of connecting tube, connecting tube and high pressure relief
Valve connects, and then reconnects four-way connection, and four-way connection top connects pressure gauge, and in addition two ends connect each via higher-pressure region pipeline
Connect cooler, in machine sealing chamber porch, one three way cock be installed, one end is connected with the higher-pressure region pipeline after subcooler,
The other end external cleaned industry water.
Preferably, higher-pressure region pipeline is provided with valve.
Preferably, described connecting tube is connected using flange with high-pressure pressure-reducing valve.
The beneficial effects of the utility model are, first, from the connecting tube of higher-pressure region welding and the high-pressure pressure-reducing valve of connection
The pressure of superelevation can be born, in the range of lift of pressure≤10MPa, this cooling water system all can safely and effectively run.The
Two, when pump just starts, by external cleaned industry water flushing envelope, can effectively lubricate washer envelope, and can be effectively
Prevent the silt iron filings in main pipe from entering machine envelope, so that it may disconnect external clean water after pump normally runs a period of time, use
Pump carrys out washer envelope itself by the medium of cooling, and which can effectively avoid the blocking of filter, can make full use of again
Pump medium self-lubricating itself, thus reach the purpose of safety and energy-conservation.
Brief description
Fig. 1 is structural representation of the present utility model.
Specific embodiment
With reference to the accompanying drawings and examples this utility model is further illustrated.
As shown in figure 1, opening a hole on the pump cover top of pumps for hot water supply net, hole is welded a flanged (FLGD) steel pipe 8, method
Orchid is coupled with high-pressure pressure-reducing valve 7 by stud, and high-pressure pressure-reducing valve 7 is coupled with four-way connection 5 by flange, four-way connection 5 top
One pressure gauge 6 is installed, in addition two ends are sequentially connected valve 4, cooler 3 again each via higher-pressure region pipeline, enter in machine sealing chamber
At mouthful, a three way cock 1 is installed, one end is connected with the higher-pressure region pipeline 2 after subcooler, the external cleaner of the other end
Industry water.
When pump runs first, close valve 4, external industry clean water lubricates to machine sealing flushing, after running a period of time,
Now the silt in main pipe, iron filings with pumped (conveying) medium after pump discharge is excluded completely, shutoff valve 4, medium（High pressure-temperature water）From
In the mechanical annular seal space of pumping chamber injection of pump；Can be with the seal loads of monitor in real time mechanical seal by adjusting high-pressure pressure-reducing valve 7
Pressure；Cooler 3 effectively can reduce medium temperature so that the cooling lubricated water water temperature entering in mechanical seal cavity is very low, therefore
Can realize by high-temperature high pressure water become low-temp low-pressure water come washer envelope, thus ensure machine envelope can effectively run for a long time.
Personnel in the art it should be appreciated that above-described embodiment is not used as to restriction of the present utility model, only
Will in spirit of the present utility model, any to above-described embodiment technique variation, flexible program all without departing from this reality
With new protection domain.
Claims (3)
1. a kind of High Temperature High Pressure pumps for hot water supply net mechanical seal protection system it is characterised in that：On the pump cover of pumps for hot water supply net
It is provided with perforate, tapping is welded with one section of connecting tube, and connecting tube is connected with high-pressure pressure-reducing valve, then connects four-way by pipeline again
Joint, four-way connection top connects pressure gauge, and in addition two ends connect cooler each via higher-pressure region pipeline, in machine sealing chamber entrance
Place is provided with a three way cock, and one end is connected with the higher-pressure region pipeline after subcooler, the other end external cleaned industry water.
2. as claimed in claim 1 a kind of High Temperature High Pressure pumps for hot water supply net mechanical seal protection system it is characterised in that：High pressure
On area's pipeline, valve is installed.
3. as claimed in claim 1 a kind of High Temperature High Pressure pumps for hot water supply net mechanical seal protection system it is characterised in that：Described
Connecting tube is connected using flange with high-pressure pressure-reducing valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620967262.XU CN205956074U (en) | 2016-08-29 | 2016-08-29 | High temperature high pressure heat supply network circulation pump mechanical seal protection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620967262.XU CN205956074U (en) | 2016-08-29 | 2016-08-29 | High temperature high pressure heat supply network circulation pump mechanical seal protection system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205956074U true CN205956074U (en) | 2017-02-15 |
Family
ID=57980395
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620967262.XU Active CN205956074U (en) | 2016-08-29 | 2016-08-29 | High temperature high pressure heat supply network circulation pump mechanical seal protection system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205956074U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022041302A1 (en) * | 2020-08-27 | 2022-03-03 | 台州市天越机电有限公司 | Centrifugal pump mechanical-seal cleaning mechanism |
-
2016
- 2016-08-29 CN CN201620967262.XU patent/CN205956074U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022041302A1 (en) * | 2020-08-27 | 2022-03-03 | 台州市天越机电有限公司 | Centrifugal pump mechanical-seal cleaning mechanism |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |