CN205046619U - Energy -saving siphonic water -collecting well - Google Patents
Energy -saving siphonic water -collecting well Download PDFInfo
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- CN205046619U CN205046619U CN201520662647.0U CN201520662647U CN205046619U CN 205046619 U CN205046619 U CN 205046619U CN 201520662647 U CN201520662647 U CN 201520662647U CN 205046619 U CN205046619 U CN 205046619U
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- sharp
- weir
- well
- crested weir
- crested
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title abstract description 50
- 229910000831 Steel Inorganic materials 0.000 claims description 13
- 239000010959 steel Substances 0.000 claims description 13
- 239000010935 stainless steel Substances 0.000 claims description 5
- 229910001220 stainless steel Inorganic materials 0.000 claims description 5
- 238000011144 upstream manufacturing Methods 0.000 description 9
- 239000000498 cooling water Substances 0.000 description 8
- 238000012423 maintenance Methods 0.000 description 7
- 230000007797 corrosion Effects 0.000 description 4
- 238000005260 corrosion Methods 0.000 description 4
- 230000001276 controlling effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004134 energy conservation Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000001737 promoting effect Effects 0.000 description 2
- 239000011150 reinforced concrete Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 230000007306 turnover Effects 0.000 description 2
- 239000000956 alloy Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000004567 concrete Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
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- Hydraulic Turbines (AREA)
Abstract
The utility model discloses an energy -saving siphonic water -collecting well, including the well body, set up in rotatory sharp -crested weir structure in the well body, well body bottom is provided with the shaft bottom board, well body top be provided with with the well roof that the shaft bottom board corresponds, still be provided with the breastwork of downward salient on the well roof, rotatory sharp -crested weir structure is including violently locating the rotation axis at well body middle part, articulate in rotatory epaxial sharp -crested weir, and hinge in the actuating mechanism of sharp -crested weir one end. During water in needs unloading siphonic water -collecting well, only need rotate angle of sharp -crested weir, weir crest and weir underflow play just can be followed to rivers, empty up to the water with in the well, need not to lay the drain pipe in the weir bottom, also not need with the sharp -crested weir open completely to with well bottom contact, the short stroke of actuating mechanism motion just can be with the complete evacuation of the water in the well, easy operation convenience.
Description
Technical field
The utility model relates to power plant cooling water system technical field, the particularly energy-saving siphonic water-collecting well of one.
Background technology
Thermal power plant/nuclear power plant's unit cooling water water supply volume is large, when water environment conditions allows, all selects to adopt direct cooling water system.Direct cooling water system need guarantee that the absolute pressure of condenser peak is not less than 20kPa, all arranges siphonic water-collecting well to reduce circulating pump head.In conventional art, before siphonic water-collecting well all ensures siphonic water-collecting well weir by overflow weir, water level is substantially constant, thus ensures that condenser peak absolute pressure is substantially constant.And overflow weir is reinforced concrete structure in the siphonic water-collecting well in conventional art, overflow weir cannot regulating weir crest level, therefore during overflow weir design, during all minimum according to winter cooling water inflow, ensures that condenser pressure is not less than 20kPa.When summer, cooling water inflow was larger, before weir, water level can raise, thus causes circulating pump head to increase, and cooling water system operating cost increases.
In conventional art, the overflow weir in direct-flow water supply system siphonic water-collecting well mostly is fixed sharp-crested weir, broad crested weir and practical weir, simultaneously during unit maintenance, is emptying circulating water pipe, need lays evacuated tube in bottom.This technology can only carry out the water in emptying circulating water pipe by the gutter laid bottom weir, inconvenient operation.
Utility model content
Based on this, for the problems referred to above, the utility model proposes a kind of energy-saving siphonic water-collecting well, can discharge the water in siphonic water-collecting well when unit maintenance easily, maintenance is convenient.
Its technical scheme is as follows:
A kind of energy-saving siphonic water-collecting well, comprises well body, is arranged at the rotation sharp-crested weir structure in described well body; Be provided with shaft bottom plate bottom described well body, described well body top is provided with the well top board corresponding with described shaft bottom plate, described well top board is also provided with outstanding breastwork downwards; Described rotation sharp-crested weir structure comprises the axis of rotation crossed in the middle part of described well body, is connected to the sharp-crested weir on described axis of rotation, and is articulated with the driving mechanism of described sharp-crested weir one end; When described sharp-crested weir is closed, the top of described sharp-crested weir is locked to described breastwork place, and described sharp-crested weir bottom is clamped on the plate of shaft bottom.
Can promote or pull sharp-crested weir to rotate along the axis of rotation that is arranged in the middle part of well body by driving mechanism, thus sharp-crested weir and shaft bottom plate and well top board can be made to clamp, what realize the upstream and downstream of siphonic water-collecting well be completely isolated.When needs regulate water levels of upstream and downstream, can rotate sharp-crested weir, make connection of swiming up and down by driving mechanism, when upper pond level is higher than the level of tail water, upper water is by flow further downstream at the bottom of the weir crest of sharp-crested weir and weir.And, when needing the water in emptying siphonic water-collecting well, only need to rotate sharp-crested weir angle, current just can go out from weir crest and weir underflow, until by the water emptying in well, without the need to laying gutter with regard to the water in the emptying circulating water pipe of energy bottom weir, do not need sharp-crested weir to be opened fully to and well contacts baseplate yet, water in well just can be emptied completely by the shorter stroke of driving mechanism motion, simple to operation.
Below its further technical scheme is described:
Further, described rotating shaft terminal is fixed in described well body wall, and it is inner to be articulated with described sharp-crested weir in the middle part of described axis of rotation.Can be arranged on sharp-crested weir inside by hinged for axis of rotation, can sharp-crested weir be made easily to rotate around axis of rotation, structure be simple.
Or described rotating shaft terminal is fixed in described well body wall, be installed with sleeve outside described sharp-crested weir, described jacket casing is located in the middle part of described axis of rotation.Can, by hinged for the axis of rotation outside being arranged on sharp-crested weir, also can sharp-crested weir be made easily to rotate around axis of rotation.
Further, described drives structure comprises the hydraulic hoist be arranged on described well top board, two universal driving shafts that one end is connected with described hydraulic hoist, two described universal driving shaft other ends are all articulated with one end of described sharp-crested weir, and described in every root, universal driving shaft is set to multi-stage expansion axle form.Drive two universal driving shafts by hydraulic hoist, drive the sharp-crested weir hinged with universal driving shaft to rotate, uniform force is stablized, and opens and steadily facilitates.In addition, universal driving shaft is set to the form of multi-stage expansion axle, what be convenient to the structure design of driving mechanism is compact, also convenient sharp-crested weir is rotated larger angle.
Further, described universal driving shaft one end is articulated with described sharp-crested weir one end near described well top board.Be articulated with sharp-crested weir top by universal driving shaft one end, it can be made to rotate by promoting sharp-crested weir top, thus sharp-crested weir is opened.
Or described universal driving shaft one end is articulated with described sharp-crested weir one end near described shaft bottom plate.Be articulated with bottom sharp-crested weir by universal driving shaft one end, it can be made to rotate by pulling bottom sharp-crested weir, thus sharp-crested weir is opened, also more convenient.
Further, described sharp-crested weir comprises girder steel, is welded in the two phase stainless steel steel plate of described girder steel both sides.Sharp-crested weir is set to steel work, solid and reliable.And be set to stainless steel and have more Corrosion Protection, make sharp-crested weir corrosion-resistant durable, the life-span is longer.
Further, the surrounding of described axis of rotation is provided with watertight rubber, and the surrounding of described sharp-crested weir and described well body, shaft bottom plate and Jing Dingbanjiechuchu are provided with watertight rubber.By arranging watertight rubber, sharp-crested weir can being made when closing, the wall of sharp-crested weir and well body, shaft bottom plate and well top plate seal, avoiding the phenomenon generation of leaking.
The utility model has following outstanding advantage: by rotating sharp-crested weir, can open at the bottom of weir crest and weir simultaneously, when water level is higher, current can be made to flow through from weir crest, when water level is lower, current can be made from weir underflow mistake, namely sharp-crested weir only need be made to turn over a less angle, and without the need to sharp-crested weir being turned to completely and well contacts baseplate, just by easily that current are emptying at the bottom of weir, convenient and simple, and the movement travel of saving universal driving shaft can reach the effect of saving power.
Accompanying drawing explanation
Fig. 1 is the main TV structure schematic diagram of energy-saving siphonic water-collecting well described in the utility model embodiment.
Description of reference numerals:
100-well body, 110-shaft bottom plate, 120-well top board, 130-breastwork, 200-sharp-crested weir, 300-driving mechanism, 310-hydraulic switch mechanism, 320-universal driving shaft, 400-axis of rotation.
Detailed description of the invention
Below in conjunction with accompanying drawing, embodiment of the present utility model is described in detail.
As shown in Figure 1, a kind of energy-saving siphonic water-collecting well, comprises well body 100, is arranged at the rotation sharp-crested weir structure in well body 100.Be provided with shaft bottom plate 110 bottom well body 100, well body 100 top is provided with the well top board 120 corresponding with shaft bottom plate 110, well top board 120 is also provided with outstanding breastwork 130 downwards.Rotate sharp-crested weir structure and comprise the axis of rotation 400 crossed in the middle part of well body 100, be articulated with the sharp-crested weir 200 on axis of rotation 400, and be articulated with the driving mechanism 300 of sharp-crested weir 200 one end.When sharp-crested weir 200 is closed, the top of sharp-crested weir 200 is locked to breastwork 130 place, and sharp-crested weir 200 bottom is clamped on shaft bottom plate 110.
Can promote or pull sharp-crested weir 200 to rotate along the axis of rotation 400 be arranged in the middle part of well body 100 by driving mechanism 300, thus sharp-crested weir 200 can be made to clamp with shaft bottom plate 110 and well top board 120, what realize the upstream and downstream of siphonic water-collecting well be completely isolated.When needs regulate water levels of upstream and downstream, can rotate sharp-crested weir 200, make connection of swiming up and down by driving mechanism 300, when upper pond level is higher than the level of tail water, upper water is by flow further downstream at the bottom of the weir crest of sharp-crested weir 200 and weir.And, when needing the water in emptying siphonic water-collecting well, only need to rotate sharp-crested weir 200 1 angles, current just can go out from weir crest and weir underflow, until by the water emptying in well, without the need to laying gutter with regard to the water in the emptying circulating water pipe of energy bottom weir, do not need sharp-crested weir 200 to be opened fully to contact with shaft bottom plate 110 yet, water in well just can be emptied completely by the driving mechanism 300 shorter stroke that moves, simple to operation.And, according to the level of tail water with to carry out discharge different, automatically controlling the open angle of sharp-crested weir 200 by controlling driving mechanism 300, can upper pond level be controlled constant, reach and keep utilizing the object that siphon height is constant.
In addition, drives structure 200 comprises the hydraulic hoist 310 be arranged on well top board 120, two universal driving shafts that one end is all connected with hydraulic hoist 310,320, two universal driving shaft 320 other ends are all articulated with one end of sharp-crested weir 200, and every root universal driving shaft 320 is set to multi-stage expansion axle form.Drive two universal driving shafts 320 by hydraulic hoist 310, drive the sharp-crested weir 200 hinged with universal driving shaft 320 to rotate, uniform force is stablized, and opens and steadily facilitates.In addition, universal driving shaft 320 is set to the form of multi-stage expansion axle, what be convenient to the structure design of driving mechanism 300 is compact, also convenient by angle larger for sharp-crested weir 200 Unscrew.
And, in one embodiment, universal driving shaft 320 one end can be made to be articulated with sharp-crested weir 200 one end near well top board 120.Be articulated with sharp-crested weir 200 top by universal driving shaft 320 one end, it can be made to rotate by promoting sharp-crested weir 200 top, thus sharp-crested weir 200 is opened.Or in another embodiment, universal driving shaft 320 one end is articulated with sharp-crested weir 200 one end near shaft bottom plate 110.Be articulated with bottom sharp-crested weir 200 by universal driving shaft 320 one end, it can be made to rotate by pulling bottom sharp-crested weir 200, thus sharp-crested weir 200 is opened, also more convenient.
In addition, in one embodiment, axis of rotation 400 two ends can be fixed in well body 100 inwall, and it is inner to make to be articulated with sharp-crested weir 200 in the middle part of axis of rotation 400.Can be arranged on sharp-crested weir 200 inside by hinged for axis of rotation 400, sharp-crested weir 200 can be made easily to rotate around axis of rotation 400, and structure is simple.Or, in another embodiment, also axis of rotation 400 two ends can be fixed in well body 100 inwall, and be installed with sleeve outside sharp-crested weir 200, jacket casing is located in the middle part of axis of rotation 400.Can, by hinged for axis of rotation 400 outside being arranged on sharp-crested weir 200, sharp-crested weir 200 also can be made easily to rotate around axis of rotation 400.
In addition, sharp-crested weir 200 also can be made to comprise girder steel, be welded in the two phase stainless steel steel plate of girder steel both sides.Sharp-crested weir 200 is set to steel work, solid and reliable.And further sharp-crested weir 200 is set to stainless steel structure and has more Corrosion Protection, make sharp-crested weir 200 corrosion-resistant durable, the life-span is longer.In addition, also sharp-crested weir 200 can be set to alloy material structure, also can be set to reinforced concrete plated construction.
In addition, also watertight rubber can be set in the surrounding of axis of rotation 400, and also can be provided with watertight rubber in the surrounding of sharp-crested weir 200 and well body 100, shaft bottom plate 110 and well top board 120 contact position.By arranging watertight rubber, sharp-crested weir 200 can be made when closing, the internal face of sharp-crested weir 200 and well body 100, shaft bottom plate 110 and well top board 120 seal, and avoid the phenomenon of leaking to occur.
The energy-conservation siphonic water-collecting well that the utility model provides, operating principle is as follows:
In normal conditions, promoted or pull sharp-crested weir 200 to make it become heeling condition by driving mechanism 300, current are by weir crest overflow and weir bottom outlet stream.According to weir formula and hole stream formula, research sharp-crested weir 200 opening angle and inflow-rate of water turbine relation curve and the relation with the level of tail water.According to the level of tail water with to carry out flow different, by automatic control, start hydraulic hoist 310, regulate the opening angle of sharp-crested weir 200, thus it is constant to control upper pond level, maintenance can utilize siphon height constant, and then ensure that circulating water pump static lift is constant, save cooling water system operating cost.
And during unit maintenance, when the level of tail water is higher, utilize driving mechanism 300 that sharp-crested weir 200 is closed completely, weir crest and breastwork 130 connect together, together with being connected to shaft bottom plate 110 at the bottom of weir, upstream and downstream is completely isolated, can stop that downstream current flow backwards and enter in circulating water pipe; When the level of tail water is lower, then can open sharp-crested weir 200 by driving mechanism 300, now only need to make sharp-crested weir 200 to rotate a less angle, will by upstream and downstream being communicated with completely at the bottom of weir, can remaining water in emptying reclaimed water system easily, facilitate the maintenance of system.
And when breaking down termination of pumping, driving mechanism 300 is utilized to be opened by sharp-crested weir 200, now also only need sharp-crested weir 200 to rotate a less angle, connect by upstream and downstream being communicated with completely at the bottom of weir, downstream current just can enter in the pipeline before siphonic water-collecting well easily, avoid the formation of air water two-phase water hammer.
The energy-saving siphonic water-collecting well that the utility model tool provides, by rotating sharp-crested weir, can open at the bottom of weir crest and weir simultaneously, when water level is higher, current can be made from weir crest and weir underflow mistake; When water level is lower, current can be made from weir underflow mistake.Sharp-crested weir only need be made to turn over a less angle, and without the need to sharp-crested weir being turned to completely and well contacts baseplate, just by easily that current are emptying at the bottom of weir, convenient and simple, and the movement travel of saving universal driving shaft can reach the effect of saving power.And arrange the steel weir that can rotate adjustment in siphonic water-collecting well, before can ensureing weir, water level is constant, can reach energy-conservation object; Steel weir adopts middle shaft rotation, conveniently can lift by crane maintenance, and simultaneously when upstream line generation water hammer, downstream current can enter upstream line, avoids air water two-phase water hammer occurs.
Each technical characteristic of the above embodiment can combine arbitrarily, for making description succinct, the all possible combination of each technical characteristic in above-described embodiment is not all described, but, as long as the combination of these technical characteristics does not exist contradiction, be all considered to be the scope that this manual is recorded.
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 utility model patent scope.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 (6)
1. an energy-saving siphonic water-collecting well, is characterized in that, comprises well body, is arranged at the rotation sharp-crested weir structure in described well body;
Be provided with shaft bottom plate bottom described well body, described well body top is provided with the well top board corresponding with described shaft bottom plate, described well top board is also provided with outstanding breastwork downwards;
Described rotation sharp-crested weir structure comprises the axis of rotation crossed in the middle part of described well body, is connected to the sharp-crested weir on described axis of rotation, and is articulated with the driving mechanism of described sharp-crested weir one end; When described sharp-crested weir is closed, the top of described sharp-crested weir is locked to described breastwork place, and described sharp-crested weir bottom is clamped on the plate of shaft bottom.
2. energy-saving siphonic water-collecting well according to claim 1, is characterized in that, described rotating shaft terminal is fixed in described well body wall, and it is inner to be articulated with described sharp-crested weir in the middle part of described axis of rotation;
Or described rotating shaft terminal is fixed in described well body wall, be installed with sleeve outside described sharp-crested weir, described jacket casing is located in the middle part of described axis of rotation.
3. energy-saving siphonic water-collecting well according to claim 1, it is characterized in that, described drives structure comprises the hydraulic hoist be arranged on described well top board, two universal driving shafts that one end is connected with described hydraulic hoist, two described universal driving shaft other ends are all articulated with one end of described sharp-crested weir, and described in every root, universal driving shaft is set to multi-stage expansion axle form.
4. energy-saving siphonic water-collecting well according to claim 3, is characterized in that, described universal driving shaft one end is articulated with described sharp-crested weir one end near described well top board;
Or described universal driving shaft one end is articulated with described sharp-crested weir one end near described shaft bottom plate.
5. energy-saving siphonic water-collecting well according to claim 1, is characterized in that, described sharp-crested weir comprises girder steel, is welded in the two phase stainless steel steel plate of described girder steel both sides.
6. energy-saving siphonic water-collecting well according to claim 1, is characterized in that, the surrounding of described axis of rotation is provided with watertight rubber, and the surrounding of described sharp-crested weir and described well body, shaft bottom plate and Jing Dingbanjiechuchu are provided with watertight rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520662647.0U CN205046619U (en) | 2015-08-28 | 2015-08-28 | Energy -saving siphonic water -collecting well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520662647.0U CN205046619U (en) | 2015-08-28 | 2015-08-28 | Energy -saving siphonic water -collecting well |
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| Publication Number | Publication Date |
|---|---|
| CN205046619U true CN205046619U (en) | 2016-02-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520662647.0U Expired - Fee Related CN205046619U (en) | 2015-08-28 | 2015-08-28 | Energy -saving siphonic water -collecting well |
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| Country | Link |
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| CN (1) | CN205046619U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108335606A (en) * | 2018-02-11 | 2018-07-27 | 河海大学 | A kind of multi-functional sharp-crested weir weir flow device suitable for teaching experiment |
-
2015
- 2015-08-28 CN CN201520662647.0U patent/CN205046619U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108335606A (en) * | 2018-02-11 | 2018-07-27 | 河海大学 | A kind of multi-functional sharp-crested weir weir flow device suitable for teaching experiment |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160224 |