CN202902912U - Condenser water box vacuum pumping system - Google Patents
Condenser water box vacuum pumping system Download PDFInfo
- Publication number
- CN202902912U CN202902912U CN 201220637245 CN201220637245U CN202902912U CN 202902912 U CN202902912 U CN 202902912U CN 201220637245 CN201220637245 CN 201220637245 CN 201220637245 U CN201220637245 U CN 201220637245U CN 202902912 U CN202902912 U CN 202902912U
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- pump
- vacuum
- pipeline
- condenser
- hydroecium
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Abstract
The utility model discloses a condenser water box vacuum pumping system, which comprises a condenser, a vacuum pumping pipeline, a steam chamber vacuum pump pipeline connected onto the condenser, and an inverted U-shaped water chamber pump-out pipeline, wherein one end of the water chamber pump-out pipeline is connected with the vacuum pumping pipeline; the other end of the water chamber pump-out pipeline is connected with the steam chamber vacuum pump pipeline; and a top part of the water chamber pump-out pipeline is higher than a top part of the condenser by at least 10m. The condenser water box vacuum pumping system has a simple structure, and a water-ring vacuum pump of a condenser steam chamber is utilized to pump out noncondensing gas in the water chamber, so that a water chamber vacuum pump or an air extractor has no need to be arranged independently; and the water chamber pump-out pipeline is designed to be an inverted U-shaped pipe, and water is upwards led out from a top part of the water chamber of the condenser by at least 10m and then downwards flows onto the steam chamber vacuum pump pipeline, so that water in the water chamber can be prevented from entering into a steam chamber vacuum pumping system.
Description
Technical field
The utility model relates to a kind of vacuum-pumping system, particularly relates to a kind of condenser water box vacuum-pumping system.
Background technology
Traditional condenser water box vacuum-pumping system arranges separately usually, mainly comprises liquid-ring type machinery vavuum pump, air admission valve, the parts such as vent valve and pipeline, other valves.Traditional hydroecium pumped vacuum systems is designed with vacuum control box, and the start and stop of hydroecium vavuum pump are controlled by the vacuum of vacuum control box, and after the hydroecium vavuum pump started, the hydroecium vavuum pump was stopped transport automatically when the vacuum of vacuum tank reaches certain value.This system has following shortcoming: (1) system complex; (2) operation of a plurality of power plant practice shows that its hydroecium vacuum system frequency of utilization is lower, and run duration is very short; (3) part power plant owing to hydroecium pumped vacuum systems pipeline arranges the unreasonable hydroecium vavuum pump water inlet phenomenon that occurred, hydroecium vavuum pump seriously corroded, service life is far below design load.
The utility model content
Based on this, for the problems referred to above, the utility model proposes a kind of simple in structure, condenser water box vacuum-pumping system of need not to arrange separately hydroecium vavuum pump or air ejector.
For solving the problems of the technologies described above, the utility model provides a kind of condenser water box vacuum-pumping system, except condenser, be connected in the vacuum-pumping pipeline and steam chest vacuum pump pipeline on the condenser, also comprise the hydroecium pump-line that is inverted U-shaped, one end of this hydroecium pump-line is connected with vacuum-pumping pipeline, the other end is connected with the steam chest vacuum pump pipeline, and the top of described hydroecium pump-line is than the top height of described condenser 10m at least.
The technical program utilizes the water-ring vacuum pump of condenser steam chest that the hydroecium incondensable gas is extracted out, water for fear of hydroecium enters the steam chest pumped vacuum systems, the hydroecium pump-line is designed to inverted-loop tube, upwards draws at least from the condenser water box top to be connected to downwards on the steam chest vacuum pump pipeline behind the 10m height again.
In a preferred embodiment, described hydroecium pump-line comprises and the ascent stage that is connected with vacuum-pumping pipeline and the descending branch that is connected with the steam chest vacuum pump pipeline is provided with restricting orifice in the described ascent stage.Because steam chest pumped vacuum systems suction capactity is strong, pumping process is rapid, and part water may be drawn into the ascent stage of U-shaped pipe, therefore at restricting orifice of ascent stage design, prevents liquid because inertia enters descending branch, thereby enters the steam chest vacuum pump pipeline.
In a preferred embodiment, the end that is connected with the steam chest vacuum pump pipeline of described hydroecium pump-line is provided with control valve, is provided with level sensor at the hydroecium of described condenser, and this level sensor is connected with described control valve.Directly cancelled vacuum control box, in the end that is connected with the steam chest vacuum pump pipeline of hydroecium pump-line control valve has been set, control valve is made into to be controlled by the hydroecium water level of condenser by the vacuum control of original vacuum control box, with the operation of predigested running.
The beneficial effects of the utility model are:
(1) simple in structure, utilize the water-ring vacuum pump of condenser steam chest that the hydroecium incondensable gas is extracted out, need not to arrange separately hydroecium vavuum pump or air ejector;
(2) the hydroecium pump-line is designed to inverted-loop tube, upwards draws at least from the condenser water box top to be connected to downwards on the steam chest vacuum pump pipeline behind the 10m height again, can avoid the water of hydroecium to enter the steam chest pumped vacuum systems.
Description of drawings
Fig. 1 is the structural representation of the described condenser water box vacuum-pumping system of the utility model embodiment;
Description of reference numerals:
The 10-condenser, 20-vacuum-pumping pipeline, the female pipe of 30-, 40-steam chest vacuum pump pipeline, 50-hydroecium pump-line, 50a-ascent stage, 50b-descending branch, 60-restricting orifice, 70-control valve.
The specific embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is elaborated.
Embodiment:
As shown in Figure 1, a kind of condenser water box vacuum-pumping system comprises condenser 10, is connected in vacuum-pumping pipeline 20 on the condenser 10, outside the steam chest vacuum pump pipeline 40 and be inverted U-shaped hydroecium pump-line 50.One end of described hydroecium pump-line 50 is connected with vacuum-pumping pipeline 20, and the other end is connected with steam chest vacuum pump pipeline 40.The top of described hydroecium pump-line 50 is than the top height of described condenser 10 at least 10m, i.e. H 〉=10m.
In the present embodiment, described hydroecium pump-line 50 comprises and the ascent stage 50a that is connected with vacuum-pumping pipeline 20 and the descending branch 50b that is connected with steam chest vacuum pump pipeline 40 is provided with restricting orifice 60 at described ascent stage 50a.Because steam chest pumped vacuum systems suction capactity is strong, pumping process is rapid, and part water may be drawn into the ascent stage 50a of U-shaped pipe, therefore at restricting orifice 60 of ascent stage 50a design, prevent liquid because inertia enters descending branch 50b, thereby enter steam chest vacuum pump pipeline 40.
In the present embodiment, the end that is connected with steam chest vacuum pump pipeline 40 of described hydroecium pump-line 50 is provided with control valve 70, is provided with level sensor at the hydroecium of described condenser 10, and this level sensor is connected with described control valve 70.Directly cancelled vacuum control box, the end that is connected with steam chest vacuum pump pipeline 40 at hydroecium pump-line 50 arranges control valve 70, control valve 70 is made into to be controlled by the hydroecium water level of condenser 10 by the vacuum control of original vacuum control box, with the operation of predigested running.
In the present embodiment, all vacuum-pumping pipeline 20 that are connected with condenser 10 gather to a female pipe 30, are designed with manual shutoff door on the vacuum-pumping pipeline 20, the isolation of each hydroecium when making things convenient for system's operation.Female pipe 30 is connected with steam chest vacuum pump pipeline 40 by being inverted U-shaped hydroecium pump-line 50, the maximum pressure that the minimum constructive height H of hydroecium pump-line 50 and hydroecium vacuum-pumping pipeline 20 on-way resistance sums should may occur greater than condenser 10 tops and the pressure reduction between the steam chest vacuum pump inlet.The design height of inverted-loop tube can be considered certain allowance according to the minimum constructive height that calculates.
The described condenser water box vacuum-pumping system of present embodiment, utilize the water-ring vacuum pump of condenser 10 steam chests that the hydroecium incondensable gas is extracted out, water for fear of hydroecium enters the steam chest pumped vacuum systems, hydroecium pump-line 50 is designed to inverted-loop tube, upwards draws at least from condenser 10 hydroecium tops to be connected to downwards on the steam chest vacuum pump pipeline 40 behind the 10m height again.
The above embodiment has only expressed the specific embodiment of the present utility model, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the utility model claim.Should be pointed out that for the person of ordinary skill of the art without departing from the concept of the premise utility, can also make some distortion and improvement, these all belong to protection domain of the present utility model.
Claims (3)
1. condenser water box vacuum-pumping system, comprise condenser, be connected in vacuum-pumping pipeline and steam chest vacuum pump pipeline on the condenser, it is characterized in that, also comprise the hydroecium pump-line that is inverted U-shaped, one end of this hydroecium pump-line is connected with vacuum-pumping pipeline, the other end is connected with the steam chest vacuum pump pipeline, and the top of described hydroecium pump-line is than the top height of described condenser 10m at least.
2. described condenser water box vacuum-pumping system according to claim 1 is characterized in that, described hydroecium pump-line comprises and the ascent stage that is connected with vacuum-pumping pipeline and the descending branch that is connected with the steam chest vacuum pump pipeline is provided with restricting orifice in the described ascent stage.
3. condenser water box vacuum-pumping system according to claim 1, it is characterized in that, the end that is connected with the steam chest vacuum pump pipeline of described hydroecium pump-line is provided with control valve, is provided with level sensor at the hydroecium of described condenser, and this level sensor is connected with described control valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220637245 CN202902912U (en) | 2012-11-27 | 2012-11-27 | Condenser water box vacuum pumping system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220637245 CN202902912U (en) | 2012-11-27 | 2012-11-27 | Condenser water box vacuum pumping system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202902912U true CN202902912U (en) | 2013-04-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220637245 Expired - Fee Related CN202902912U (en) | 2012-11-27 | 2012-11-27 | Condenser water box vacuum pumping system |
Country Status (1)
| Country | Link |
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| CN (1) | CN202902912U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102927833A (en) * | 2012-11-27 | 2013-02-13 | 中国能源建设集团广东省电力设计研究院 | Condenser water box vacuum-pumping system and vacuum suction method |
-
2012
- 2012-11-27 CN CN 201220637245 patent/CN202902912U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102927833A (en) * | 2012-11-27 | 2013-02-13 | 中国能源建设集团广东省电力设计研究院 | Condenser water box vacuum-pumping system and vacuum suction method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: CHINA ENERGY ENGINEERING GROUP GUANGDONG ELECTRIC Free format text: FORMER NAME: CHINA ENERGY ENGINEERING GROUP GUANGDONG ELECTRIC POWER DESIGN INSTITUTE |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 510663 Luogang District, Guangdong, Guangzhou Science City Fung Road, No. 1, No. Patentee after: Company limited of China Energy Engineering Group Guangdong Electric Power Design Institute Address before: 510663 Luogang District, Guangdong, Guangzhou Science City Fung Road, No. 1, No. Patentee before: Guangdong Electric Power Design Institute of CEEC |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130424 Termination date: 20201127 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |