CN204151847U - Reclaimed water system and siphonic water-collecting well thereof - Google Patents
Reclaimed water system and siphonic water-collecting well thereof Download PDFInfo
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- CN204151847U CN204151847U CN201420640011.1U CN201420640011U CN204151847U CN 204151847 U CN204151847 U CN 204151847U CN 201420640011 U CN201420640011 U CN 201420640011U CN 204151847 U CN204151847 U CN 204151847U
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- water pump
- stoplog gate
- siphonic
- water
- circulating water
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Abstract
The utility model relates to a kind of reclaimed water system and siphonic water-collecting well thereof, and at least one siphon unit of this siphonic water-collecting well is provided with Stoplog gate mechanism.When three pump operations, put into by Stoplog gate, respective side opens a circulating water pump, and opposite side opens two circulating water pump, and now Stoplog gate can play the effect increasing this side system resistance, ensures that the circulating water pump of this side runs at operating point for design.When two circulating water pump of the side of placing Stoplog gate are all out of service, Stoplog gate can also play the effect intercepting extraneous waters, thus conveniently carries out segmentation maintenance to the circulating line after circulating water pump.Stoplog gate mechanism is directly arranged in siphon unit, save the occupation of land that stoplog well is set specially, and than traditional design arranging siphonic water-collecting well and stoplog well respectively, when utilizing Stoplog gate mechanism of the present utility model to regulate reclaimed water system hydraulic loss, can avoid causing cavitation erosion or vibration because local velocity is excessive, add the stability of system.
Description
Technical field
The utility model relates to technical field of power generation, especially relates to a kind of reclaimed water system and siphonic water-collecting well thereof.
Background technology
In the thermal power generation or nuclear power engineering of coastal or that run-off is larger water system construction, reclaimed water system can adopt direct-flow water supply system, namely in waters water intaking, after power plant's cold cycling, then discharges backwater territory.After siphonic water-collecting well, Box-shaped Drainage Culvert is communicated with outlet opening waters.For stably maintaining the water seal of condenser outlet pipe, avoid air enter the outlet pipe of condenser and destroy siphon, thus realize reducing circulating pump head, save station service, siphonic water-collecting well is a kind of structure of necessity.The every platform unit of EPR three generations nuclear power arranges four circulating water pump, and every two circulating water pump form a unit.Can run by three circulating water pump in the winter time for realizing unit, and ensure circulating water pump not off-design operating point under this operating mode, reclaimed water system drag losses must be increased temporarily.For hydraulic loss after increase circulating water pump, in conjunction with power plant's general arrangement, traditional by independently arranging gate shaft before siphonic water-collecting well, form local water resistance to realize, specific practice is that the water supply gallery before siphonic water-collecting well arranges gate shaft, can place bulkhgead gate, perforate on bulkhgead gate in gate shaft, form aperture, local to reduce, cause local resistance loss.When three pump operations, gate is placed in gate slot; When four pump operations, gate is hung out.This method needs to arrange siphonic water-collecting well and stoplog well respectively, adds the occupation of land arranging stoplog groove specially, and easily causes cavitation erosion or vibration because local velocity is excessive, increases the unstability of system.
Utility model content
Based on this, be necessary that providing a kind of saves space and the good reclaimed water system of stability and siphonic water-collecting well thereof.
A kind of siphonic water-collecting well, for the reclaimed water system of power plant, described siphonic water-collecting well comprises two siphon unit be set up in parallel, each described siphon unit comprises well body and is located at the siphon weir in described well body, described well body is divided into upstream region and downstream area by described siphon weir, and the upstream region of two described siphon unit completely cuts off and downstream area is communicated with; Described at least one, siphon unit is provided with Stoplog gate mechanism, described Stoplog gate mechanism comprises Stoplog gate guide groove and the Stoplog gate with described guide groove adaptation, the bottom of described guide groove and described siphon weir top contact, the top of described guide groove maintains an equal level mutually with the top of described well body, and described Stoplog gate coordinates with described siphon weir and described upstream region and described downstream area can be separated.
Wherein in an embodiment, two described siphon unit are equipped with described Stoplog gate mechanism, and the guide groove concentrically line of two described Stoplog gate mechanisms.
Wherein in an embodiment, each described siphon unit offers intake tunnel and exhalant canal respectively on the well body of described upstream region and described downstream area.
Wherein in an embodiment, the shaft bottom of described downstream area is lower than the shaft bottom of described upstream region.
Wherein in an embodiment, the top of described well body is provided with movable railing and staircase structure.
A kind of reclaimed water system, comprises the siphonic water-collecting well described in above-mentioned any embodiment.
Wherein in an embodiment, described reclaimed water system also comprises four circulating water pump and condenser, the corresponding described siphon unit of every two circulating water pump, the water inlet of described circulating water pump is used for fetching water from waters, be communicated with the water inlet pipe of described condenser after the delivery port merging of two described circulating water pump, the outlet pipe of described condenser is communicated with the intake tunnel of corresponding described siphon unit.
Wherein in an embodiment, described in every platform, the diameter of the delivery port of circulating water pump is 3200mm, and the house steward's diameter after the delivery port merging of two described circulating water pump is 4400mm.
Wherein in an embodiment, described in every platform, the flow of circulating water pump is 23m
3/ s.
Wherein in an embodiment, described Stoplog gate mechanism can cause local resistance loss 10.50m.
Above-mentioned siphonic water-collecting well containing Stoplog gate mechanism and reclaimed water system, can be widely used in the thermal power generation or nuclear power engineering that coastal or that run-off is larger water system builds, as EPR three generations nuclear power system.When four pump operations, taken out by Stoplog gate, the cooling water of discharging from condenser enters two siphon unit, carries out normal water circulation; When three pump operations, placed by Stoplog gate in the guide groove of a siphon unit, respective side opens a circulating water pump, and opposite side opens two circulating water pump, now Stoplog gate can play the effect increasing this side system resistance, ensures that the circulating water pump of this side runs at operating point for design.When two circulating water pump of the side of placing Stoplog gate are all out of service, Stoplog gate can also play the effect intercepting extraneous waters, thus conveniently carries out segmentation maintenance to the circulating line after circulating water pump.Stoplog gate mechanism is directly arranged in siphon unit, save the occupation of land that stoplog well is set specially, and compare with the design of stoplog well with traditional siphonic water-collecting well that arranges respectively, when utilizing Stoplog gate mechanism of the present utility model to regulate reclaimed water system hydraulic loss, can avoid causing cavitation erosion or vibration because local velocity is excessive, add the stability of system.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of an embodiment reclaimed water system;
Fig. 2 is the top view of siphonic water-collecting well in Fig. 1;
Fig. 3 is the sectional view along A-A line in Fig. 2;
Fig. 4 is the top view of the siphonic water-collecting well that Stoplog gate takes out;
Fig. 5 is the sectional view along B-B line in Fig. 4.
Detailed description of the invention
For the ease of understanding the utility model, below with reference to relevant drawings, the utility model is described more fully.Preferred embodiment of the present utility model is given in accompanying drawing.But the utility model can realize in many different forms, is not limited to embodiment described herein.On the contrary, provide the object of these embodiments be make the understanding of disclosure of the present utility model more comprehensively thorough.
It should be noted that, when element is called as " being fixed on " another element, directly can there is element placed in the middle in it on another element or also.When an element is considered to " connection " another element, it can be directly connected to another element or may there is centering elements simultaneously.
Unless otherwise defined, all technology used herein and scientific terminology are identical with belonging to the implication that those skilled in the art of the present utility model understand usually.The object of the term used in manual of the present utility model herein just in order to describe specific embodiment, is not intended to be restriction the utility model.Term as used herein " and/or " comprise arbitrary and all combinations of one or more relevant Listed Items.
As shown in Figure 1, the reclaimed water system 10 of an embodiment comprises circulating water pump 100, condenser 200 and siphonic water-collecting well 300.The water inlet 102 of circulating water pump 100 is for fetching water from extraneous waters.The delivery port 104 of circulating water pump 100 is communicated with the water inlet pipe 202 of condenser 200.The outlet pipe 204 of condenser 200 is communicated with the intake tunnel 302 of siphonic water-collecting well 300.The exhalant canal 304 of siphonic water-collecting well 300 is communicated with extraneous waters, for outwardly waters draining.
The reclaimed water system 10 of present embodiment comprises four circulating water pump 100.Siphonic water-collecting well 300 has two siphon unit 310.The corresponding siphon unit 310 of every two circulating water pump 100, and the delivery port 104 of two circulating water pump 100 is communicated with the water inlet pipe 202 of condenser 200 after merging.The diameter of the delivery port 104 of every platform circulating water pump 100 is 3200mm.House steward's diameter after delivery port 104 merging of two circulating water pump 104 is 4400mm.The flow of every platform circulating water pump 100 is 23m
3/ s, therefore, can realize three circulating water pump 100 run for realizing reclaimed water system 10, and ensure circulating water pump 100 not off-design operating point under this operating mode, need increase drag losses 10.50m after circulating water pump 100.
Incorporated by reference to Fig. 1 ~ Fig. 4, each siphon unit 310 comprises well body 312 and is located at the siphon weir 314 in well body.Well body 312 is divided into upstream region 3122 and downstream area 3124 by siphon weir 314.Between the upstream region 3122 of two siphon unit 310, isolated and downstream area 3124 is communicated with.In the present embodiment, Stoplog gate mechanism 316 is provided with in two siphon unit 310.
Stoplog gate mechanism 316 comprises Stoplog gate guide groove 3162 and the Stoplog gate 3164 with guide groove 3162 adaptation.The guide groove 3162 concentrically line of two siphon unit 310.The bottom of guide groove 3162 and siphon weir 314 top contact.The top of guide groove 3162 maintains an equal level mutually with the top of well body 312.The quantity of the stoplog of Stoplog gate 3164 and specification need to design according to system.Coordinate with siphon weir 314 after Stoplog gate 3164 inserts guide groove 3162 and upstream region 3122 and downstream area 3124 can be separated.Can understand, in other embodiments, also only Stoplog gate mechanism 316 can be set in a siphon unit 310.
Aquaporin 302 and exhalant canal 304 are corresponding to be respectively opened on the upstream region 3122 of siphon unit 310 and the well body 312 of downstream area 3124.
Further, as shown in Figure 3 and Figure 5, the shaft bottom of the downstream area 3124 of present embodiment is lower than the shaft bottom of upstream region 3122, and the top of well body 312 is provided with movable railing 3126 and staircase structure 3128, is convenient to the state that staff monitors siphonic water-collecting well 300.
Above-mentioned siphonic water-collecting well 300 containing Stoplog gate mechanism 316 and reclaimed water system 10, can be widely used in the power plant such as thermal power generation that coastal or that run-off is larger water system builds or nuclear power engineering, as EPR three generations nuclear power system.As shown in Figure 4 and Figure 5, when four circulating water pump 100 run simultaneously, taken out by Stoplog gate 3164, the cooling water of discharging from condenser 200 enters two siphon unit 310, carries out normal water circulation; As shown in Figures 2 and 3, when three pump operations, Stoplog gate 3164 is placed in the guide groove 3162 of a siphon unit 310, respective side opens a circulating water pump 100, opposite side opens two circulating water pump 100, now Stoplog gate 3164 can play the effect increasing this side system resistance, ensures that the circulating water pump 100 of this side runs at operating point for design.
When two circulating water pump 100 of the side of placing Stoplog gate 3164 are all out of service, Stoplog gate 3164 can also play the effect intercepting extraneous waters, thus conveniently carries out segmentation maintenance to the circulating line after circulating water pump 100.Stoplog gate mechanism 316 is directly arranged in siphon unit 310, save the occupation of land that stoplog well is set specially, and compare with the design of stoplog well with traditional siphonic water-collecting well that arranges respectively, when utilizing Stoplog gate mechanism 316 of the present utility model to regulate reclaimed water system 10 hydraulic loss, can avoid causing cavitation erosion or vibration because local velocity is excessive, add the stability of system.
The above embodiment only have expressed several embodiment of the present utility model, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the utility model the scope of the claims.It 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.Therefore, the protection domain of the utility model patent should be as the criterion with claims.
Claims (10)
1. a siphonic water-collecting well, for the reclaimed water system of power plant, described siphonic water-collecting well comprises two siphon unit be set up in parallel, each described siphon unit comprises well body and is located at the siphon weir in described well body, described well body is divided into upstream region and downstream area by described siphon weir, and the upstream region of two described siphon unit completely cuts off and downstream area is communicated with; It is characterized in that, described at least one, siphon unit is provided with Stoplog gate mechanism, described Stoplog gate mechanism comprises Stoplog gate guide groove and the Stoplog gate with described guide groove adaptation, the bottom of described guide groove and described siphon weir top contact, the top of described guide groove maintains an equal level mutually with the top of described well body, and described Stoplog gate coordinates with described siphon weir and described upstream region and described downstream area can be separated.
2. siphonic water-collecting well as claimed in claim 1, it is characterized in that, two described siphon unit are equipped with described Stoplog gate mechanism, and the guide groove concentrically line of two described Stoplog gate mechanisms.
3. siphonic water-collecting well as claimed in claim 1, is characterized in that, each described siphon unit offers intake tunnel and exhalant canal respectively on the well body of described upstream region and described downstream area.
4. siphonic water-collecting well as claimed in claim 1, is characterized in that, the shaft bottom of described downstream area is lower than the shaft bottom of described upstream region.
5. siphonic water-collecting well as claimed in claim 1, it is characterized in that, the top of described well body is provided with movable railing and staircase structure.
6. a reclaimed water system, is characterized in that, comprises the siphonic water-collecting well according to any one of Claims 1 to 5.
7. reclaimed water system as claimed in claim 6, it is characterized in that, also comprise four circulating water pump and condenser, the corresponding described siphon unit of every two circulating water pump, the water inlet of described circulating water pump is used for fetching water from waters, be communicated with the water inlet pipe of described condenser after the delivery port merging of two described circulating water pump, the outlet pipe of described condenser is communicated with the intake tunnel of corresponding described siphon unit.
8. reclaimed water system as claimed in claim 7, it is characterized in that, described in every platform, the diameter of the delivery port of circulating water pump is 3200mm, and the house steward's diameter after the delivery port merging of two described circulating water pump is 4400mm.
9. reclaimed water system as claimed in claim 8, it is characterized in that, described in every platform, the flow of circulating water pump is 23m
3/ s.
10. reclaimed water system as claimed in claim 9, it is characterized in that, described Stoplog gate mechanism can cause local resistance loss 10.50m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420640011.1U CN204151847U (en) | 2014-10-29 | 2014-10-29 | Reclaimed water system and siphonic water-collecting well thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420640011.1U CN204151847U (en) | 2014-10-29 | 2014-10-29 | Reclaimed water system and siphonic water-collecting well thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204151847U true CN204151847U (en) | 2015-02-11 |
Family
ID=52509974
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420640011.1U Expired - Fee Related CN204151847U (en) | 2014-10-29 | 2014-10-29 | Reclaimed water system and siphonic water-collecting well thereof |
Country Status (1)
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| CN (1) | CN204151847U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104294879A (en) * | 2014-10-29 | 2015-01-21 | 中国能源建设集团广东省电力设计研究院 | Circulating water system and siphon well thereof |
-
2014
- 2014-10-29 CN CN201420640011.1U patent/CN204151847U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104294879A (en) * | 2014-10-29 | 2015-01-21 | 中国能源建设集团广东省电力设计研究院 | Circulating water system and siphon well thereof |
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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: CHINA ENERGY ENGINEERING GROUP GUANGDONG ELECTRIC POWER DESIGN INSTITUTE Co.,Ltd. Address before: 510663 Luogang District, Guangdong, Guangzhou Science City Fung Road, No. 1, No. Patentee before: GUANGDONG ELECTRIC POWER DESIGN INSTITUTE OF CHINA ENERGY ENGINEERING GROUP Co.,Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150211 Termination date: 20211029 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |