CN209724764U - Coal-burning power plant's feed pump shaft end sealing device - Google Patents
Coal-burning power plant's feed pump shaft end sealing device Download PDFInfo
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- CN209724764U CN209724764U CN201920357367.7U CN201920357367U CN209724764U CN 209724764 U CN209724764 U CN 209724764U CN 201920357367 U CN201920357367 U CN 201920357367U CN 209724764 U CN209724764 U CN 209724764U
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- Prior art keywords
- sealing
- water
- oil
- lubricating oil
- feed pump
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- 238000007789 sealing Methods 0.000 title claims abstract description 113
- 239000010687 lubricating oil Substances 0.000 claims abstract description 68
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 64
- 239000003921 oil Substances 0.000 claims abstract description 53
- 230000000903 blocking effect Effects 0.000 claims abstract description 26
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 claims abstract description 23
- 238000013461 design Methods 0.000 claims abstract description 6
- 238000005461 lubrication Methods 0.000 claims description 2
- 206010020852 Hypertonia Diseases 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- VEMKTZHHVJILDY-UHFFFAOYSA-N resmethrin Chemical compound CC1(C)C(C=C(C)C)C1C(=O)OCC1=COC(CC=2C=CC=CC=2)=C1 VEMKTZHHVJILDY-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
- Sealing Devices (AREA)
Abstract
The utility model provides a kind of coal-burning power plant's feed pump shaft end sealing device, including sealing axis, the both ends of the sealing axis are respectively equipped with sealing water water blocking set and lubricating oil oil scraper ring, the sealing axis is equipped with that one end of sealing water water blocking set and the seal water system of feed pump connects, the sealing axis is equipped with that one end of lubricating oil oil scraper ring and the lubricating oil system of feed pump connects, the lower section of sealing axis between the sealing water water blocking set and lubricating oil oil scraper ring is equipped with the open upward oil catcher that catchments, the oil catcher that catchments is for observing the sealing leak situation of sealing water water blocking set and lubricating oil oil scraper ring, and the sealing water of leakage or lubricating oil are discharged.The utility model structure is simple, and rationally, water blocking and the bearing shell lubricating oil oil retaining part disjunction of shaft end seal are opened for design, non-tight package, either one pressure anomaly, and leakage will be seen that, and the sealing water of leakage or lubricating oil can be discharged, and will not influence the normal operation of feed pump.
Description
Technical field
The utility model relates to coal-burning power plant's water supply pump sealing apparatus, specifically a kind of coal-burning power plant's feed pump shaft end seal
Device.
Background technique
An Important Auxiliary equipment equipment of the feed pump as coal-burning power plant, it carries to the important task of boiler water filling.Feed pump
Revolving speed is high, generally is equipped with lubricating oil system, and shaft end water supply leaks outside in order to prevent, generally is configured with feed pump shaft end sealing water system
System, the return water of shaft end seal water are generally into condenser.When feed pump operates normally, sealing water return water enters condenser, profit
Lubricating oil oil return returns to grease-box.
Existing some Sealing Water for Feedwater Pump and bearing shell Lubricating Oil shelves sealed envelope, along feed pump shaft to being easy to mutually alter.
If sealing water is big or sealing water return water is unsmooth, sealing water easily enters bearing shell oil return by oil shelves along shaft end, hence into giving
Water pump lubricating oil system；Conversely, easily along shaft end, oil shelves enter Sealing Water for Feedwater Pump to lubricating oil if lubricating oil oil inlet quantity is big, from
And pollute entire boiler circuit.The event of this " lubricating oil enters sealing water " or " sealing water enters lubricating oil ", to coal-fired electricity
Factory brings greatly damage and puzzlement.It is real although feed pump equipment manufacturer has given sealing water pressure and lubricating oil pressure range
It is adjusted in the operation of border according to this range, due effect is not achieved；Moreover sealing water pressure need to be adjusted in time after operating condition variation
Whole, if adjustment is not in time, easily generation lubricating oil and sealing water mutually alter event.Since shaft end seal and bearing shell Lubricating Oil shelves are whole
Body package, lubricating oil return are mutually scurried into situation with sealing water return water and can not be monitored.
Currently, some power plant's feed pumps have occurred water and enter lubricating oil and lubrication during starting, operation and maintenance
Oil enters the event of condensed water, checked by scene find such event occur be exactly because Sealing Water for Feedwater Pump baffle device for water
It is packaged together with lubricating oil oil guard along feed pump shaft, when sealing water water is excessive or lubricating oil oil mass is excessive, sealing water
Imbalance occurs for return water and lubricating oil return pressure, and sealing water and lubricating oil will mutually be altered along axial generation, so as to cause in oil
Oil inlet in water inlet or water.It is mutually altered at present without effective monitoring means to this, a large amount of crossfire has all occurred for when discovery.
Summary of the invention
In view of the above shortcomings of the prior art, the utility model provides a kind of coal-burning power plant's feed pump shaft end sealing device,
It can effectively monitor the leakage situation of sealing water and lubricating oil, adjust in time；And it eliminates sealing water and lubricating oil mutually alters
Risk.
A kind of technical solution provided by the utility model: coal-burning power plant's feed pump shaft end sealing device, it is characterised in that: packet
Sealing axis is included, the both ends of the sealing axis are respectively equipped with sealing water water blocking set and lubricating oil oil scraper ring, and the sealing axis is equipped with close
That one end of water shutoff water blocking set and the seal water system of feed pump connect, and the sealing axis is equipped with that one end of lubricating oil oil scraper ring
It is connect with the lubricating oil system of feed pump, the lower section of the sealing axis between the sealing water water blocking set and lubricating oil oil scraper ring is equipped with
The open upward oil catcher that catchments, the oil catcher that catchments are let out for observing the sealing of sealing water water blocking set and lubricating oil oil scraper ring
Situation is leaked, and collects the sealing water or lubricating oil of leakage.
Further, the oil catcher that catchments is also connected with discharge line, sealing water or lubricating oil row for that will reveal
Out.
Further, it is not connected between the sealing water water blocking set and lubricating oil oil scraper ring, separately design and sealing
Axis connection sealing, sealing water and lubricating oil are directly mutually altered when preventing sealing from leaking.
Further, the sealing water water blocking set and lubricating oil oil scraper ring are coated on the upper and lower ends setting of sealing axis.
The utility model structure is simple, and rationally, water blocking and the bearing shell lubricating oil oil retaining part disjunction of shaft end seal open up for design
Meter, non-tight package, either one pressure anomaly, leakage will be seen that, can effectively monitor the leakage situation of sealing water and lubricating oil,
Adjustment in time；And it eliminates sealing water and risk that lubricating oil is mutually altered, and the sealing water of leakage or lubricating oil can be discharged, no
It will affect the normal operation of feed pump.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
In figure: 1-sealing water water blocking set, 2-sealing axis, 3-lubricating oil oil scraper rings, 4-catchment oil catcher, 5-discharges
Pipeline.
Specific embodiment
The utility model is described further with reference to the accompanying drawing.
A kind of coal-burning power plant's feed pump shaft end sealing device as shown in Figure 1, including sealing axis 2, the two of the sealing axis 2
End is respectively equipped with sealing water water blocking set 1 and lubricating oil oil scraper ring 3, the sealing axis 2 be equipped with that one end of sealing water water blocking set 1 with
The seal water system of feed pump connects, and the sealing axis 2 is equipped with that one end of lubricating oil oil scraper ring 3 and the lubricating oil system of feed pump
The lower section of system connection, the sealing axis 2 between the sealing water water blocking set 1 and lubricating oil oil scraper ring 3 is equipped with open upward catchment
Oil catcher 4, the oil catcher 4 that catchments cover the sealing leak situation of 1 and lubricating oil oil scraper ring 3 for observing sealing water water blocking, and
Collect the sealing water or lubricating oil of leakage.
The oil catcher 4 that catchments is also connected with discharge line 5, sealing water or lubricating oil discharge for that will reveal.
It is not connected between the sealing water water blocking set 1 and lubricating oil oil scraper ring 3, separately design is connect with sealing axis 2
Sealing, sealing water and lubricating oil are directly mutually altered when preventing sealing from leaking.
The sealing water water blocking set 1 and lubricating oil oil scraper ring 3 are coated on the upper and lower ends setting of sealing axis.
When sealing water hypertonia or unsmooth sealing water return water, sealing water, which will be entered along sealing axis by water blocking set, catchments
Oil catcher is drained；Equally when lubricating oil side oil pressure is higher, lubricating oil, which will be entered along sealing axis by lubricating oil oil scraper ring, to catchment
Oil catcher is drained, so that sealing water and the mutual of lubricating oil be avoided to alter；And the oil catcher that catchments is upper open device, sealing water or profit
The leakage of lubricating oil is as it can be seen that can monitor well and be adjusted in time.
Coal-burning power plant's feed pump shaft end sealing device of the utility model can effectively monitor sealing compared with original design
The operating condition of water and lubricating oil adjusts in time；And eliminate sealing water and risk that lubricating oil is mutually altered.
The foregoing is merely the detailed descriptions of the specific embodiment of the utility model, and it is practical new not limit this with this
Type, all any modifications, equivalent replacements, and improvements made in the mentality of designing of the utility model etc. should be included in practical
Within novel protection scope.
Claims (4)
1. a kind of coal-burning power plant's feed pump shaft end sealing device, it is characterised in that: including sealing axis (2), sealing axis (2)
Both ends are respectively equipped with sealing water water blocking set (1) and lubricating oil oil scraper ring (3), and the sealing axis (2) is equipped with sealing water water blocking set (1)
One end and feed pump seal water system connect, it is described sealing axis (2) be equipped with lubricating oil oil scraper ring (3) one end and feed pump
Lubricating oil system connection, set below the sealing axis (2) between the sealing water water blocking set (1) and lubricating oil oil scraper ring (3)
There is the open upward oil catcher that catchments (4), the oil catcher that catchments (4) is for observing sealing water water blocking set (1) and lubrication oil catch
The sealing leak situation of oil ring (3), and collect the sealing water or lubricating oil of leakage.
2. feed pump shaft end sealing device in coal-burning power plant's according to claim 1, it is characterised in that: the oil catcher that catchments
(4) discharge line (5) are also connected with, sealing water or lubricating oil discharge for that will reveal.
3. feed pump shaft end sealing device in coal-burning power plant's according to claim 1, it is characterised in that: the sealing water water blocking
It is not connected between set (1) and lubricating oil oil scraper ring (3), separately design connect sealing with sealing axis (2), prevents sealing
Sealing water and lubricating oil are directly mutually altered when leakage.
4. feed pump shaft end sealing device in coal-burning power plant's according to claim 3, it is characterised in that: the sealing water water blocking
Set (1) and lubricating oil oil scraper ring (3) are coated on the upper and lower ends setting of sealing axis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920357367.7U CN209724764U (en) | 2019-03-20 | 2019-03-20 | Coal-burning power plant's feed pump shaft end sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920357367.7U CN209724764U (en) | 2019-03-20 | 2019-03-20 | Coal-burning power plant's feed pump shaft end sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209724764U true CN209724764U (en) | 2019-12-03 |
Family
ID=68687564
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920357367.7U Active CN209724764U (en) | 2019-03-20 | 2019-03-20 | Coal-burning power plant's feed pump shaft end sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209724764U (en) |
-
2019
- 2019-03-20 CN CN201920357367.7U patent/CN209724764U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |