CN211232419U - Circulating pump forebay overhauls and keeps apart pumping system - Google Patents
Circulating pump forebay overhauls and keeps apart pumping system Download PDFInfo
- Publication number
- CN211232419U CN211232419U CN201922125708.0U CN201922125708U CN211232419U CN 211232419 U CN211232419 U CN 211232419U CN 201922125708 U CN201922125708 U CN 201922125708U CN 211232419 U CN211232419 U CN 211232419U
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- China
- Prior art keywords
- circulating pump
- pump
- forebay
- circulating
- carbon steel
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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
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- 238000005086 pumping Methods 0.000 title claims abstract description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 33
- 229910000975 Carbon steel Inorganic materials 0.000 claims abstract description 24
- 239000010962 carbon steel Substances 0.000 claims abstract description 24
- 238000002955 isolation Methods 0.000 claims abstract description 8
- 238000012544 monitoring process Methods 0.000 abstract description 2
- 230000005619 thermoelectricity Effects 0.000 abstract 1
- 238000012423 maintenance Methods 0.000 description 4
- 239000007788 liquid Substances 0.000 description 2
- 206010014357 Electric shock Diseases 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000005574 cross-species transmission Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 239000010813 municipal solid waste Substances 0.000 description 1
- 238000003303 reheating Methods 0.000 description 1
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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model relates to a circulating pump forebay overhauls to keep apart to take out water system unified. The front pool submersible pump needs a large amount of manpower when the pump body is overhauled, and meanwhile, the submersible pump is guaranteed to be below the water surface when water is pumped, so that the submersible pump is prevented from being burnt, and the monitoring cost of personnel is increased. The utility model provides a circulating pump forebay overhauls isolation pumping system, its constitution includes: siphon pump (1), water ring vacuum pump (2), a set of circulating pump and a set of circulating pump forebay, a set of circulating pump forebay is 7 meters deep, and be provided with carbon steel pipe (3) in 6.5 meters departments of every circulating pump forebay degree of depth, install butterfly valve (4) on every carbon steel pipe, four carbon steel pipes gather to siphon pump entrance and are connected with the siphon pump, the export of siphon pump package is connected to in circulating pump forebay C and the circulating pump forebay D through the carbon steel pipe, install 150 butterfly valves (5) on the carbon steel pipe in being connected to circulating pump forebay C and the circulating pump forebay D, the siphon pump is connected with water ring vacuum pump. The utility model discloses be applied to the thermoelectricity field.
Description
The technical field is as follows:
the utility model relates to a circulating pump forebay overhauls and keeps apart pumping system.
Background art:
the steam turbine is a C270/N300-16.7/537/537 subcritical, once intermediate reheating, single-shaft, double-cylinder (high and medium pressure combined cylinder) double-steam-exhaust and single-extraction heat-condensing type steam turbine manufactured by Harbin steam turbine plant Limited liability company. The system is provided with four circulating water pumps, each unit comprises two circulating water pumps, and the circulating water pumps and the condenser outlets are provided with contact doors which are connected in series, so that the running flexibility of the circulating water pumps is ensured, and the circulating water pumps can be mutually standby; when one of them needs to disintegrate and overhaul, the motor has a power failure, closes pump outlet door, corresponds flashboard under the forebay of pump, 3 ~ 4 immersible pumps about 40t under its forebay, take out forebay water level to the circulating pump sunction inlet and expose, valve, flashboard not tight when preventing that the pump from tearing open big lid lead to the circulating water to spill over the water flooded pump room. When the pump is overhauled, the front pool submersible pump needs a large amount of manpower, and meanwhile, the submersible pump is ensured to be below the water surface when pumping water, so that the submersible pump is prevented from being burnt, and the monitoring cost of personnel is increased; when personnel enter the forebay to overhaul the trash cleaning machine or the forebay is desilted, if the submersible pump leaks electricity, the damage is caused to the overhaul personnel.
The invention content is as follows:
the utility model aims at providing a circulating pump forebay overhauls and keeps apart pumping system.
The above purpose is realized by the following technical scheme:
the utility model provides a circulating pump forebay overhauls isolation pumping system, its constitution includes: siphon pump, water ring vacuum pump, a set of circulating pump and a set of circulating pump forebay, a set of the circulating pump forebay be 7 meters deep, and every the circulating pump forebay degree of depth 6.5 meters department be provided with the carbon steel pipe, every the carbon steel pipe on install the butterfly valve, four the carbon steel pipe gather extremely siphon pump entrance be connected with the siphon pump, siphon pump group export pass through the carbon steel pipe be connected to in circulating pump forebay C and the circulating pump forebay D, install 150 butterfly valves on the carbon steel pipe that is connected to in circulating pump forebay C and the circulating pump forebay D, the siphon pump with water ring vacuum pump connect.
The circulating pump forebay overhaul isolation pumping system is characterized in that the circulating pump forebay is in a group and comprises a circulating pump A, a circulating pump B, a circulating pump C and a circulating pump D, and the circulating pump forebay is in a group and comprises a circulating pump forebay A, a circulating pump forebay B, a circulating pump forebay C and a circulating pump forebay D.
The utility model has the advantages that:
1. the utility model provides high work efficiency reduces the immersible pump and consumes, reduces the maintainer and suffers the risk of electric shock, and the drainage ability prevents greatly that the water logging pump house, reduces the outer discharge capacity of maintenance water tower. (reddening is an added action, because the water tower for isolation maintenance has circulating water returned by the corresponding circulating pump and circulating water leaked from the anti-freezing pipe of the maintenance water tower, and the circulating water is returned to the operating water tower through the system)
2. The utility model discloses 7 meters deep in the circulating pump forebay, 6.5 meters phi 159 the 3 carbon steel pipe under every circulating pump forebay, install the butterfly valve that corresponds with the pipeline respectively, 4 pieces of phi 159 the 3 carbon steel pipe gather to siphon pump package entry, and the siphon pump package export links to C circulating pump, D circulating pump forebay through phi 159 the 3 carbon steel pipe, and 0.5 meters of degree of depth, two pipes add 150 butterfly valves respectively, use during the switching.
The utility model discloses a siphon-pump selection parameter: the flow rate is 190t/h, the lift is 12.5m, the rotating speed is 1470r/min, and the motor power is 11 kw; selecting parameters of the liquid ring vacuum pump: power 1.1kw, rotation speed 2820r/min, pumping speed 0.3-0.4m3H; the power supply 380v and the start and stop of the pump set are controlled by the controller.
The utility model relates to a siphon pump and a liquid ring vacuum pump to the supporting pipeline valve is convenient for use when switching. Need not be immersible pump down after the circulating water pump forebay is kept apart, reduced the human cost, simultaneously the immersible pump has also not had the risk of scaling loss and electric leakage, and the time of drawing water drops by a wide margin and has improved work efficiency, reduces the outer drainage volume of maintenance water tower.
Description of the drawings:
fig. 1 is a schematic structural diagram of the present invention.
In the figure, 1, a siphon pump, 2, a water ring vacuum pump, 3, a carbon steel pipe, 4, a butterfly valve, 5, 150 butterfly valves, 6, circulating pumps A, 7, circulating pumps B, 8, circulating pumps C, 9, circulating pumps D, 10, circulating pump foreponds A, 11, circulating pump foreponds B, 12, circulating pump foreponds C, 13 and a circulating pump forepond D.
The specific implementation mode is as follows:
example 1:
the utility model provides a circulating pump forebay overhauls isolation pumping system, its constitution includes: siphon pump 1, water ring vacuum pump 2, a set of circulating pump and a set of circulating pump forebay, a set of the circulating pump forebay be 7 meters deep, and every circulating pump forebay degree of depth 6.5 meters department be provided with carbon steel pipe 3, every carbon steel pipe on install butterfly valve 4, four carbon steel pipe gather extremely siphon pump entrance be connected with the siphon pump, siphon pump package export pass through carbon steel pipe be connected to in circulating pump forebay C and the circulating pump forebay D, install 150 butterfly valves 5 on the carbon steel pipe in being connected to circulating pump forebay C and the circulating pump forebay D, the siphon pump with water ring vacuum pump connect.
Example 2:
the circulating pump forebay overhauls isolation pumping system according to embodiment 1, characterized by: the circulating pump comprises a group of circulating pumps A6, a circulating pump B7, a circulating pump C8 and a circulating pump D9, and the circulating pump forebay comprises a circulating pump forebay A10, a circulating pump forebay B11, a circulating pump forebay C12 and a circulating pump forebay D13.
Claims (2)
1. The utility model provides a circulating pump forebay overhauls isolation pumping system, its constitution includes: siphon pump, water ring vacuum pump, a set of circulating pump and a set of circulating pump forebay, characterized by: a set of the circulating pump forebay be 7 meters deep, and every the circulating pump forebay degree of depth 6.5 meters department be provided with the carbon steel pipe, every the carbon steel pipe on install the butterfly valve, four the carbon steel pipe gather extremely siphon pump entrance be connected with the siphon pump, siphon pump package export pass through the carbon steel pipe be connected to in circulating pump forebay C and the circulating pump forebay D, be connected to the carbon steel pipe in circulating pump forebay C and the circulating pump forebay D on install 150 butterfly valves, the siphon pump with water ring vacuum pump connection.
2. The circulating pump forebay service isolation pumping system of claim 1, wherein: and the circulating pump consists of a circulating pump A, a circulating pump B, a circulating pump C and a circulating pump D, and the circulating pump forebay consists of a circulating pump forebay A, a circulating pump forebay B, a circulating pump forebay C and a circulating pump forebay D.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922125708.0U CN211232419U (en) | 2019-12-02 | 2019-12-02 | Circulating pump forebay overhauls and keeps apart pumping system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922125708.0U CN211232419U (en) | 2019-12-02 | 2019-12-02 | Circulating pump forebay overhauls and keeps apart pumping system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211232419U true CN211232419U (en) | 2020-08-11 |
Family
ID=71926809
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922125708.0U Expired - Fee Related CN211232419U (en) | 2019-12-02 | 2019-12-02 | Circulating pump forebay overhauls and keeps apart pumping system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211232419U (en) |
-
2019
- 2019-12-02 CN CN201922125708.0U patent/CN211232419U/en not_active Expired - Fee Related
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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: 20200811 |