CN205246242U - Reservoir stoplog door laminated water taking temperature observation device - Google Patents
Reservoir stoplog door laminated water taking temperature observation device Download PDFInfo
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- CN205246242U CN205246242U CN201520930961.2U CN201520930961U CN205246242U CN 205246242 U CN205246242 U CN 205246242U CN 201520930961 U CN201520930961 U CN 201520930961U CN 205246242 U CN205246242 U CN 205246242U
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Abstract
The utility model discloses a reservoir stoplog door laminated water taking temperature observation device belongs to hydraulic and hydroelectric engineering technical field, comprising a water inlet, water inlet department is equipped with trash rack, stoplog door and the electricity generation horn mouth section of intaking, the trash rack is located before the water inlet, the stoplog door is located the water inlet, horn mouth period number in the water inlet downstream side of intaking generates electricity, the water inlet upstream side is equipped with temperature water level observation device before the dam, and the downstream side is equipped with electricity generation tail water temperature observation device behind the dam. This technical scheme is through setting up stoplog door laminated water taking to the water inlet, reservoir top layer water passes through water inlet stoplog door top and gets into the water intaking way, controls stoplog door open height according to the reservoir water -level fluctuation condition, ensures to avoid reservoir lower floor rivers income low reaches from reservoir top layer water intaking electricity generation, to low reaches ecological environment production adverse effect, has realized that the unit independently supplies water, and the operation operation is comparatively nimble.
Description
Technical field
The utility model belongs to Hydraulic and Hydro-Power Engineering technical field, relates in the large storehouse of a kind of high dam the monitoring technology of water temperature Changing Pattern under Stoplog gate stratified pumping mode, especially relates to a kind of reservoir Stoplog gate stratified pumping water temperature observation device.
Background technology
At present, the method that the large storehouse of high dam in China's Hydraulic and Hydro-Power Engineering takes Stoplog gate stratified pumping mode to take the generating of reservoir surface water body or drainage is promoted gradually, to slow down former water inlet low-temperature discharge, cause the water temperature of downstream river course to decline, change the natural distribution of water temperature in former river course, to the surrounding environment situation that particularly aquatile has a negative impact as fish etc. Meanwhile, must monitor the water body water temperature of this waters certain depth, to monitor in real time the impact on water quality and environment of water temperature cumulative effect that this waters produces because of hydroelectric project retaining, and the actual effect of observing stratified pumping reach.
But up to now, the domestic system research work of carrying out about the observation of Hydraulic and Hydro-Power Engineering Stoplog gate stratified pumping water temperature cumulative effect is little, the technical method of Stoplog gate stratified pumping water temperature cumulative effect observation work and the effective unification that requires to lack Guidelines or specification, cause reservoir and downstream entirety water temperature Changing Pattern observation quality of achievement ubiquity systematicness, representative, the problem that reliability is not strong, to improving, optimize the design of successive projects Stoplog gate stratified pumping measure, the reference significance of the work such as construction and traffic control is little, to improving China's river water temperature Changing Pattern Study on Mathematic Model, the reference of the work such as empirical equation improvement and software for calculation exploitation thereof is less.
Utility model content
In order to address the above problem, the utility model provides a kind of reservoir Stoplog gate stratified pumping water temperature observation device, thereby realize the systematic observation to reservoir Stoplog gate stratified pumping water temperature cumulative effect, improve the technical merit of reservoir and downstream water temperature Changing Pattern observation work.
The utility model is achieved by following technical solution.
A kind of reservoir Stoplog gate stratified pumping water temperature observation device, comprise water inlet, described water inlet is provided with trash rack, Stoplog gate and generating water-inlet horn mouth section, described trash rack is positioned at before water inlet, described Stoplog gate is positioned at water inlet, described generating water-inlet horn mouth section is positioned at water inlet downstream, generating water-inlet horn mouth section posterior segment is provided with water inlet bulkhead gate, water inlet bulkhead gate downstream is provided with water inlet diversion tunnel, described water inlet upstream side is provided with water-temperature water-level observation device before dam, and downstream is provided with the tail water water temperature observation device that generates electricity behind dam.
Before described dam, water-temperature water-level observation device comprises before dam before cable observation ball float, dam probe installation chain and installation chain end counterweight before water-temperature water-level observation probe, dam, before before dam, probe is installed chain top fixed dam, cable is observed ball float, and end hangs installs chain end counterweight; Before dam, water-temperature water-level observation probe arranges multiplely, and vertical being arranged in before dam popped one's head on installation chain before cable observation ball float and the dam of installing between chain end counterweight respectively.
The tail water water temperature of generating electricity behind described dam observation device comprises behind tail water observation ball float behind tail water observation maintenance wirerope behind draft tube deck behind dam, horizontal stand, dam, dam, dam that probe installs behind chain, dam tail water observation steel pipe after water temperature observation probe and dam, and behind described dam, tail water observation steel pipe is positioned on the outer wall of backwater zone, draft tube deck downstream behind dam; Behind dam, tail water observation ball float observes maintenance wirerope be connected with tail water observation steel pipe upper port behind dam by tail water behind dam, and behind dam, tail water observation ball float lower end is installed chain water temperature observation probe behind dam is installed by popping one's head in behind dam.
Before described dam, water-temperature water-level observation device is apart from least 300m of water inlet.
Before described dam, behind cable observation ball float and dam, tail water observation ball float is PE rotational moulding ball float.
Before described dam, the length of probe installation chain is greater than water inlet base plate to the distance between normal pool level.
Behind described dam, tail water observation steel pipe is fixedly connected with draft tube deck outer wall behind dam by horizontal stand, and horizontal stand arranges multiple, is vertically equidistantly fixed on draft tube deck outer wall behind dam.
After before described dam, probe is installed chain and dam, probe installation chain all adopts wirerope to make.
The beneficial effects of the utility model are:
A kind of reservoir Stoplog gate stratified pumping water temperature observation device described in the utility model, by the tail water water temperature observation device that generates electricity after being arranged at respectively water-temperature water-level observation device before the dam of water inlet upstream side and being arranged at the dam in water inlet downstream, take into full account the Stoplog gate traffic control operating mode under the different operating water levels of reservoir, generating tail water water temperature in observation cycle and water inlet generating water body water temperature is carried out to the comparative observation of system, the water temperature of Stoplog gate stratified pumping is changed and carried out comprehensively, effectively cover, guarantee the systematicness of water temperature Changing Pattern observation achievement under Reservoir region and dam, representative, reliability, to the water temperature situation of change of the large storehouse of comprehensive observation high dam Stoplog gate stratified pumping operation overall process, improve China's water temperature of reservoir Changing Pattern monitoring technical merit and quality of achievement, further promote China's water temperature of reservoir Distribution and change Study on Mathematic Model, empirical equation improvement and software for calculation development and research level thereof, promotion technical progress of industry is significant, economical, social, obvious environment benefit.
Brief description of the drawings
Fig. 1 is the installation site of water-temperature water-level observation device and structural representation thereof before dam in the utility model;
Fig. 2 is in the utility model, behind dam, generate electricity installation site and the structural representation thereof of tail water water temperature observation device;
Fig. 3 is the fitting arrangement of water-temperature water-level observation device before the dam in power station in embodiment;
Fig. 4 is the fitting arrangement of tail water water temperature observation device of generating electricity behind the dam in power station in embodiment.
In figure: 1-Stoplog gate, 2-trash rack, 3-generating water-inlet horn mouth section, 4-water inlet bulkhead gate, 5-water inlet diversion tunnel, cable observation ball float before 6-dam, water-temperature water-level observation probe before 7-dam, before 8-dam, probe is installed chain, and 9-installs chain end counterweight, draft tube deck behind 10-dam, 11-horizontal stand, tail water observation maintenance wirerope behind 12-dam, tail water observation ball float behind 13-dam, behind 14-dam, probe is installed chain, water temperature observation probe behind 15-dam, tail water observation steel pipe behind 16-dam.
Detailed description of the invention
Further describe the technical solution of the utility model below in conjunction with accompanying drawing, but described in claimed scope is not limited to.
Reservoir Stoplog gate stratified pumping water temperature observation described herein, according under the different operating water level conditions of different reservoirs, Stoplog gate stratified pumping is carried out to corresponding scheduling controlling, guarantee that reservoir level maintains the interval stable operation of water level of Stoplog gate control, above-mentioned water level interval is that the door of Stoplog gate is high, and water temperature, the water-level observation data of water body vertical water temperature before the water inlet in this period and generating tail water are given to synchronous recording, reorganization; Then, water temperature situation to water body vertical water temperature, generating tail water before different reservoirs, the water inlet of water level a certain operation period gives comparative observation and analytical calculation, show that different reservoirs, the Stoplog gate stratified pumping of a certain operation period of water level heat range value, by the heating after range value cumulative statistics of day part, obtain the observation achievement of Stoplog gate stratified pumping entirety warming effect again.
As Fig. 1, shown in Fig. 2, a kind of reservoir Stoplog gate stratified pumping water temperature observation device described in the utility model, comprise water inlet, described water inlet is provided with trash rack 2, Stoplog gate 1 and generating water-inlet horn mouth section 3, described trash rack 2 is vertical type, be positioned at before water inlet, described Stoplog gate 1 is positioned at water inlet, described generating water-inlet horn mouth section 3 is positioned at water inlet downstream, generating water-inlet horn mouth section 3 posterior segments are provided with water inlet bulkhead gate 4, water inlet bulkhead gate 4 downstreams are provided with water inlet diversion tunnel 5, described water inlet upstream side is provided with water-temperature water-level observation device before dam, downstream is provided with the tail water water temperature observation device that generates electricity behind dam.
Before described dam, water-temperature water-level observation device comprises before dam before cable observation ball float 6, dam probe installation chain 8 and installation chain end counterweight 9 before water-temperature water-level observation probe 7, dam, before before dam, probe is installed chain 8 top fixed dams, cable is observed ball float 6, and end hangs installs chain end counterweight 9; Before dam, water-temperature water-level observation probe 7 arranges multiple, vertical being arranged in before dam popped one's head on installation chain 8 before cable observation ball float 6 and the dam of installing between chain end counterweight 9 respectively, can equidistantly arrange according to the spacing of 2～10m, also can arrange according to the reservoir vertical water temperature regularity of distribution; The vertical variation of water temperature that generally approaches reservoir surface is larger, and water temperature delamination spacing is about 2～5m, and the vertical variation of water temperature that approaches reservoir bottom is less, and water temperature delamination spacing is about 5～10m.
Before aforesaid dam, cable observation ball float 6 should depend on and be installed on the relatively-stationary facility in Reservoir region, on the facility such as warning cable, reservoir area observation vessel on reservoir surface, and will guarantee before dam probe installation chain 8 not affected by Reservoir region current etc. and damages.
Before described dam, water-temperature water-level observation probe 7 is the water-temperature water-level sensors with the online transfer function of remote data, temperature measurement resolution ratio is 0.01 DEG C, precision is 0.1 DEG C, scope is-40～100 DEG C, level measuring precision is 0.1 meter, working depth scope can reach 200 meters, and water temperature, waterlevel data record the frequency and can in 10min～3h interval, arrange arbitrarily; Before dam, water-temperature water-level observation probe 7 adopts batteries as power supply, adopts the only stainless steel casing encapsulation of 0.2mm wall thickness, and amount of stored heat is minimum, highly sensitive, characteristics such as having shock resistance collision, anti-ly suppress, be anticorrosive, anti-aging.
The tail water water temperature of generating electricity behind described dam observation device comprises behind tail water observation ball float 13 behind tail water observation maintenance wirerope 12 behind draft tube deck 10 behind dam, horizontal stand 11, dam, dam, dam that probe installs behind chain 14, dam tail water observation steel pipe 16 after water temperature observation probe 15 and dam, and behind described dam, tail water observation steel pipe 16 is positioned at behind dam on draft tube deck 10 downstream outer walls; Behind dam, tail water observation ball float 13 floats on behind dam on the inner water surface of tail water observation steel pipe 16 and is connected with tail water observation steel pipe 16 upper port behind dam by tail water observation maintenance wirerope 12 behind dam, behind dam tail water observation ball float 13 lower ends by dam after probe chain 14 is installed water temperature is installed behind dam observes and pop one's head in 15; Behind dam, probe is installed chain 14 length and is generally 1～3m, and its end should be higher than at least 0.5m of tail water observation steel pipe 16 ends behind dam, with guarantee water temperature observation probe 15 behind dam do not generated electricity tail water impact and damage; Behind dam, tail water observation maintenance wirerope 12 is for water temperature observation probe 15 promote dam in the situations such as instrument maintenance, replacing battery after.
Behind described dam, water temperature observation probe 15 is the cooling-water temperature sensors with the online transfer function of remote data, temperature measurement resolution ratio is 0.01 DEG C, and precision is 0.1 DEG C, and scope is-40～100 DEG C, working depth scope can reach 100 meters, and the water temperature data record frequency can be in the interval setting arbitrarily of 10min～3h; Behind dam, water temperature observation probe 15 adopts batteries as power supply, adopts the only stainless steel casing encapsulation of 0.2mm wall thickness, and amount of stored heat is minimum, highly sensitive, characteristics such as having shock resistance collision, anti-ly suppress, be anticorrosive, anti-aging.
Before described dam, water-temperature water-level observation device is apart from least 300m of water inlet, and its distance need determine according to the power station drainage distance of intaking, with this position not dependent station water inlet generating drainage impact be advisable.
Described installation chain end counterweight 9 adopts the shot etc. can suspension type weight, keeps vertical for guaranteeing before dam that probe is installed chain 8, reduce reservoir lateral current to dam before probe chain 8 be installed produced influence of fluctuations.
Before described dam, behind cable observation ball float 6 and dam, tail water observation ball float 13 is PE rotational moulding ball float, characteristics such as possessing shock resistance collision, anti-ly suppress, be anticorrosive, anti-aging, float on reservoir surface and bear certain counterweight, floating ball diameter is determined according to the required buoyancy calculations of counterweight.
Before described dam, the length of probe installation chain 8 is greater than water inlet base plate to the distance between normal pool level, and concrete length is determined according to the depth of water of required observation.
Behind described dam, tail water observation steel pipe 16 is fixedly connected with 10 outer walls of draft tube deck behind dam by horizontal stand 11; Behind dam, the length of tail water observation steel pipe 16 is determined according to generating tailwater elevation excursion, and its bottom at least exceedes minimum tailwater elevation 1.5～3.5m, and top at least exceedes the highest tailwater elevation 3～5m; Behind dam, the caliber of tail water observation steel pipe 16 is suitable to meet behind dam being installed as of water temperature observation probe 15 after tail water observation ball float 13 and dam; Horizontal stand 11 arranges multiple, is vertically equidistantly fixed on draft tube deck 10 outer walls behind dam, and spacing is generally 3～6m.
After before described dam, probe is installed chain 8 and dam, probe installation chain 14 all adopts wirerope to make, for water temperature observation probe 15 behind water-temperature water-level observation probe 7 or dam before vertical installation dam.
In aforementioned structure, in the time having many generating sets or each generating set water inlet elevation inconsistent, can consider the tail water water temperature observation device that generates electricity after the left and right bank of generating tail water arranges dam respectively, to reduce observation error; In this case, behind dam, tail water observation steel pipe 16 should be installed on the outer wall of backwater zone, both sides, draft tube deck downstream, to avoid, because the strong external force such as generating set earial drainage make behind dam tail water observation steel pipe 16, the situations such as loosening, impact, collision occur.
Based on the water temperature observation procedure of above-mentioned reservoir Stoplog gate stratified pumping water temperature observation device, its observation procedure is as follows:
1. in the time that reservoir level starts lower than normal pool level, the Stoplog gate of the corresponding water level in water inlet is mentioned, keep power station stable electric generation, read before dam on water-temperature water-level observation device water temperature behind the dam of corresponding water level on the tail water water temperature observation device that generates electricity after the reading of water-temperature water-level observation probe 7 and dam before the dam of corresponding water level simultaneously and observe 15 the reading of popping one's head in;
2. whenever reservoir water level descending one saves Stoplog gate height, mention a corresponding joint Stoplog gate, keep power station stable electric generation, read before dam on water-temperature water-level observation device water temperature behind the dam of corresponding water level on the tail water water temperature observation device that generates electricity after the reading of water-temperature water-level observation probe 7 and dam before the dam of corresponding water level simultaneously and observe 15 the reading of popping one's head in;
3. when reservoir level starts to rise, more than the every rising of water level reaches the height of 2 joint Stoplog gates, transfer a joint Stoplog gate, read before dam on water-temperature water-level observation device the reading of water temperature observation probe 15 behind the dam of corresponding water level on the tail water water temperature observation device that generates electricity after the reading of water-temperature water-level observation probe 7 and dam before the dam of corresponding water level simultaneously;
Step 1., 2., 3. in, in conjunction with the actual conditions of reservoir normal operation between normal pool level and level of dead water, divided different water level traffic coverages according to stoplog every is high, the corresponding specific Stoplog gate of the corresponding scheduling of each water level traffic coverage, generates electricity with the surface water of guaranteeing to take more than the Stoplog gate that reservoir dispatched.
4. " occurrence of warning cable water temperature observation data before the water inlet dam " income value of using " occurrence of the tail water water temperature observation data of generating electricity behind dam " of certain period to deduct, is this period Stoplog gate stratified pumping water temperature variance values; " occurrence of the tail water water temperature observation data of generating electricity behind dam " described herein be generating tail water water temperature observation, and " occurrence of warning cable water temperature observation data before water inlet dam " is water body water temperature observation before water inlet; Before water inlet, water body water temperature can be the water temperature measured value of the nearest water-level and water-temperature online observation probes records of day part water inlet center line elevation place or distance center line, also can be near the water temperature such as mean value, the interpolate value calculated value of the water temperature measured value of vertical multiple water-level and water-temperature online observation probes records day part water inlet center line elevation, concrete value mode requires to be determined according to accuracy of observation.
Above-mentioned observation achievement is in Stoplog gate stratified pumping water temperature entirety observation cycle, the Stoplog gate stratified pumping of day part heats the cumulative statistics result of range value on time dimension, what reflect is in observation cycle, and the Stoplog gate stratified pumping of day part heats the relative variation tendency of range value.
Before the dam that 2. described step collects in 3. with step, behind water-temperature water-level observation probe 7 and dam, the reading of water temperature observation probe 15 is received to laboratory designated computer and is stored and process by GPRS data communication platform.
Embodiment
Actual conditions below in conjunction with dish river, north Guangzhao Hydropower Station are described in further detail the utility model scheme, but described in the claimed scope of the utility model is not limited to.
(1) stratified pumping project profile
As shown in Figure 3, Guangzhao Hydropower Station is upper maximum a step hydropower station and leading reservoir of north dish Jiang Ganliu, reservoir normal pool level 745m, and level of dead water 691m, maximum height of dam 200.5m, is incomplete carry-over storage. After Guangzhao Hydropower Station builds up operation, low-temperature discharge can make the water temperature of downstream river course decline, and changes the natural distribution of water temperature in former river course, can to surrounding environment particularly aquatile produce certain adverse effect as fish etc. For alleviating Guangzhao Hydropower Station construction to the hydrobiological adverse effect of its lower reache, State Environmental Protection Administration proposes to adopt the requirement of stratified pumping, and according to this requirement, the rearmounted stratified pumping engineering of six hole Stoplog gates has been built up in Guangzhao Hydropower Station design and construction.
Guangzhao Hydropower Station water intake for power generation floor elevation 670m, center line elevation 675m, top board elevation 680m, water inlet top platform elevation 750.5m, water inlet leading edge overall width 75.5m, flows to length 34m downstream.
New water inlet upstream extends 11.5m on the basis of former individual layer water inlet, comprise 6 water inlets, 6 water inlet elevations are 670m～750.5m, each water inlet width is 7.5m, mainly comprise trash rack 2, Stoplog gate 1, generating water-inlet horn mouth section 3, water inlet bulkhead gate 4, the trash rack 2 of described vertical type is positioned at before water inlet, totally 14 of trash racks 2, every width 3.5m; Described Stoplog gate 1 is positioned at water inlet, the crest level 730m of wealthy family, and ground sill elevation 670m, is divided into 20 joints, and the high 3m of every section door, in the overlapping mounting groove that is installed on water inlet both sides; Described generating water-inlet horn mouth section 3 is positioned at water inlet downstream, long 12m, upper limb adopts 1/4 elliptic curve, both sides adopt 1/4 circular curve, water inlet bulkhead gate 4 is established in horn mouth posterior segment, igfet gate is wide × height=8m × 10.4m, and water inlet bulkhead gate 4 downstreams are provided with water inlet diversion tunnel 5.
In the rearmounted stratified pumping engineering of six hole Stoplog gates that Guangzhao Hydropower Station is taked; reservoir surface water enters water intaking road by water inlet Stoplog gate top; door top minimum operation depth of water 15m; can, according to the control of reservoir level situation of change from reservoir surface (under water more than 18m) water intaking generating, can realize unit and independently supply water, when maintenance, only need part to shut down; intake chamber current are steadily symmetrical; the loss of flood peak is less, and the year electric quantity loss of generation is relatively less, and operation is comparatively flexible.
(2) water-temperature water-level observation device situation before dam
As shown in 3, before dam, water-temperature water-level observation device is warned the talweg position, reservoir surface on cable before being arranged on hydroelectric dam, i.e. the central spot of warning cable before dam, and apart from water intake for power generation 700m, not dependent station water inlet generating drainage impact substantially.
Before dam, water-temperature water-level observation device comprises before dam before cable observation ball float 6, dam probe installation chain 8 and installation chain end counterweight 9 before water-temperature water-level observation probe 7, dam, before described dam, cable observation ball float 6 adopts PE rotational moulding ball float, diameter is 800mm, characteristics such as possessing shock resistance collision, anti-ly suppress, be anticorrosive, anti-aging, is fixed on probe installation chain 8 tops before dam; Before described dam, the wirerope diameter that adopts of chain 8 is installed is 0.4cm to probe, on described the dam before probe chain end shot 9 be installed be suspended on dam before probe chain 8 ends are installed, be positioned at before dam bottom water-temperature water-level observation 7 belows of popping one's head in, installation chain end counterweight 9 weighs 8kg; Before described dam, water-temperature water-level observation probe 7 arranges 20 altogether, vertically respectively be arranged in probe before dam and install on chain 8, position in its vertical direction is: the following 2m of ball float lays 1, and all the other 19 are arranged in the following 5m of ball float, 10m, 15m, 20m, 25m, 30m, 35m, 40m, 45m, 50m, 55m, 60m, 65m, 70m, 75m, 80m, 85m, 90m, 95m.
For the generating water body water temperature within the scope of the interval 75m scope of observation water intake for power generation base plate 670m～normal pool level 745m and the interval 20m of the following 650m～water inlet of water intake for power generation base plate 670m, before installation dam, before the dam of water-temperature water-level observation probe 7, probe is installed chain 8 length and is arranged to 95m, observes requirement to meet normal pool level 745m to the water temperature in the following 20m of water intake for power generation base plate 670m interval.
Before described dam, the temperature measurement resolution ratio of water-temperature water-level observation probe 7 is 0.01 DEG C, and precision is 0.1 DEG C, and scope is-40～100 DEG C, and level measuring precision is 0.1m, and working depth scope is 0～200m; Before dam, water-temperature water-level observation probe 7 adopts battery as power supply, is arranged to water temperature of every 30 minutes records, water-level observation data, and under this pattern, battery life is 1 year; Before dam, water-temperature water-level observation probe 7 adopts stainless steel casing encapsulation, only has the wall thickness of 0.2mm, has very little amount of stored heat, adopt the high fluid sealant of thermal conductivity, ensure the high sensitivity of sensor, minimum temperature delay, characteristics such as thering is shock resistance collision, anti-ly suppress, be anticorrosive, anti-aging; The water temperature data that before dam, water-temperature water-level observation probe 7 gathers are stored by GPRS data communication platform reception to laboratory designated computer.
(3) the tail water water temperature observation device situation of generating electricity behind dam
As shown in Figure 4, Guangzhao Hydropower Station generating tail water is connected with the Hydropower Plant Reservoir normal pool level in its downstream, and the excursion of generating tailwater level is 550m～585m, and tailwater level luffing reaches 35m.
The tail water water temperature of generating electricity behind Guangzhao Hydropower Station dam observation device comprises behind tail water observation ball float 13 behind tail water observation maintenance wirerope 12 behind draft tube deck 10 behind dam, horizontal stand 11, dam, dam, dam that probe installs behind chain 14, dam tail water observation steel pipe 16 after water temperature observation probe 15 and dam, tail water observation steel pipe 16 caliber 200mm behind described dam, total length is 40m, be installed on the outer wall of draft tube deck 10 backwater zones, downstream behind dam, be fixedly connected with 10 outer walls of draft tube deck behind dam by horizontal stand 11, its bottom exceedes minimum tailwater level 2m, and top exceedes high tailrace level 3m; Described horizontal stand 11 amounts to 9, is vertically equidistantly fixed on draft tube deck 10 outer walls behind dam, and between each horizontal stand 11, spacing is 5m, is distributed between elevation 588m～548m; Behind described dam, tail water observation ball float 13 adopts PE rotational moulding ball float, diameter is 150mm, characteristics such as possessing shock resistance collision, anti-ly suppress, be anticorrosive, anti-aging, be connected with tail water observation steel pipe 16 upper port behind dam by tail water observation maintenance wirerope 12 behind dam, after behind dam, tail water observes ball float 13 lower ends by dam, probe is installed chain 14 water temperature observation probe 15 behind dam is installed; Behind described dam, probe installation chain 14 adopts wirerope to make, long 1.5m, diameter 0.3cm; The long 45m of tail water observation maintenance wirerope 12 behind described dam, diameter 0.4cm.
Behind described dam, the Measurement Resolution of water temperature observation probe 15 is 0.01 DEG C, and precision is 0.1 DEG C, and scope is-40～100 DEG C, and working depth scope is 0～200m; Behind dam, water temperature observation probe 15 adopts battery as power supply, is arranged to a water temperature observation data of every 30 minutes records, and under this pattern, battery life is 1 year; Behind dam, water temperature observation probe 15 adopts stainless steel casing encapsulation, only has the wall thickness of 0.2mm, has very little amount of stored heat, adopt the high fluid sealant of thermal conductivity, ensure the high sensitivity of sensor, minimum temperature delay, characteristics such as thering is shock resistance collision, anti-ly suppress, be anticorrosive, anti-aging; The water temperature data that behind dam, water temperature observation probe 15 gathers are stored by GPRS data communication platform reception to laboratory designated computer.
(4) Stoplog gate stratified pumping warming effect observation procedure
Under normal circumstances, Guangzhao Hydropower Station reservoir operating level is between 691m (level of dead water)～745m (normal pool level), and the observation of Stoplog gate stratified pumping warming effect is implemented according to reservoir operating level, and concrete observation procedure is as follows:
1. in the time that reservoir level starts lower than 745m, 6 water inlets are mentioned first segment Stoplog gate separately simultaneously, guarantee afterwards power station stable electric generation a period of time, and reservoir level maintains 745m～742m section operation; Meanwhile, recorded, reorganized warning the tail water water temperature observation data of generating electricity behind cable water temperature observation data and dam before the water inlet dam in this period;
2. in the time that reservoir level starts lower than 742m, 6 water inlets are mentioned second section Stoplog gate separately simultaneously, guarantee afterwards power station stable electric generation a period of time, and reservoir level maintains 742m～739m section operation; Meanwhile, recorded, reorganized warning the tail water water temperature observation data of generating electricity behind cable water temperature observation data and dam before the water inlet dam in this period;
3. after this, in the time of the every reduction of reservoir level 3m, 6 water inlets are all mentioned a joint Stoplog gate simultaneously, so, mention successively Section three, Section four ... the 19 joint, the 20 joint Stoplog gate, reservoir level maintains respectively 739m～736m, 736m～733m ... 691m～688m, 688m～685m section operation; Meanwhile, recorded, reorganized warning the tail water water temperature observation data of generating electricity behind cable water temperature observation data and dam before the water inlet dam in day part;
4. in the time that reservoir level goes up, carry out water temperature observation according to the depth of water situation on Stoplog gate top, in the time that stoplog every top depth of water exceeds 15m, put down a joint Stoplog gate, ensure that stoplog every top depth of water is controlled at 15～18m operation, its method of operating is contrary during with reservoir water level descending, and the tail water water temperature observation data of generating electricity behind warning cable water temperature observation data and dam before the water inlet dam in day part is also recorded, reorganizes;
5. be analyzed warning the tail water water temperature observation data of generating electricity behind cable water-temperature water-level observation data, dam before the dam in the same period, " occurrence of the tail water water temperature observation data of generating electricity behind dam " of certain period deducts " occurrence of warning cable water temperature observation data before water inlet dam " income value, is this period Stoplog gate stratified pumping and heats range value.
The day part that Stoplog gate stratified pumping heated in the observation phase heats after range value cumulative statistics, is Stoplog gate stratified pumping entirety warming effect observation.
Claims (10)
1. a reservoir Stoplog gate stratified pumping water temperature observation device, comprise water inlet, described water inlet is provided with trash rack (2), Stoplog gate (1) and generating water-inlet horn mouth section (3), described trash rack (2) is positioned at before water inlet, described Stoplog gate (1) is positioned at water inlet, described generating water-inlet horn mouth section (3) is positioned at water inlet downstream, generating water-inlet horn mouth section (3) posterior segment is provided with water inlet bulkhead gate (4), water inlet bulkhead gate (4) downstream is provided with water inlet diversion tunnel (5), it is characterized in that: described water inlet upstream side is provided with water-temperature water-level observation device before dam, downstream is provided with the tail water water temperature observation device that generates electricity behind dam.
2. a kind of reservoir Stoplog gate stratified pumping water temperature observation device according to claim 1, it is characterized in that: before described dam, water-temperature water-level observation device comprises before dam before cable observation ball float (6), dam probe installation chain (8) and installation chain end counterweight (9) before water-temperature water-level observation probe (7), dam, before before dam, probe is installed chain (8) top fixed dam, cable is observed ball float (6), and end hangs installs chain end counterweight (9); Before dam, water-temperature water-level observation probe (7) arranges multiplely, and vertical being arranged in before dam popped one's head on installation chain (8) before cable observation ball float (6) and the dam of installing between chain end counterweight (9) respectively.
3. a kind of reservoir Stoplog gate stratified pumping water temperature observation device according to claim 1, it is characterized in that: the tail water water temperature of generating electricity behind described dam observation device comprises behind tail water observation ball float (13) behind tail water observation maintenance wirerope (12) behind draft tube deck (10) behind dam, horizontal stand (11), dam, dam, dam that probe installs behind chain (14), dam tail water observation steel pipe (16) after water temperature observation probe (15) and dam, behind described dam, tail water observes steel pipe (16) be positioned on the outer wall of draft tube deck (10) backwater zone, downstream behind dam; Behind dam, tail water observation ball float (13) is connected with tail water observation steel pipe (16) upper port behind dam by tail water observation maintenance wirerope (12) behind dam, behind dam tail water observation ball float (13) lower end chain (14) is installed dam is installed by probe behind dam after water temperature observe pop one's head in (15).
4. a kind of reservoir Stoplog gate stratified pumping water temperature observation device according to claim 1, is characterized in that: before described dam, water-temperature water-level observation device is apart from least 300m of water inlet.
5. a kind of reservoir Stoplog gate stratified pumping water temperature observation device according to claim 2, is characterized in that: before described dam, cable observation ball float (6) is PE rotational moulding ball float.
6. a kind of reservoir Stoplog gate stratified pumping water temperature observation device according to claim 2, is characterized in that: before described dam, the length of probe installation chain (8) is greater than water inlet base plate to the distance between normal pool level.
7. a kind of reservoir Stoplog gate stratified pumping water temperature observation device according to claim 3, it is characterized in that: behind described dam, tail water observation steel pipe (16) is fixedly connected with draft tube deck behind dam (10) outer wall by horizontal stand (11), horizontal stand (11) arranges multiple, is vertically equidistantly fixed on draft tube deck (10) outer wall behind dam.
8. a kind of reservoir Stoplog gate stratified pumping water temperature observation device according to claim 2, is characterized in that: before described dam, probe installation chain (8) adopts wirerope to make.
9. a kind of reservoir Stoplog gate stratified pumping water temperature observation device according to claim 3, is characterized in that: behind described dam, tail water observation ball float (13) is PE rotational moulding ball float.
10. a kind of reservoir Stoplog gate stratified pumping water temperature observation device according to claim 3, is characterized in that: behind described dam, probe installation chain (14) adopts wirerope to make.
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| CN201520930961.2U CN205246242U (en) | 2015-11-20 | 2015-11-20 | Reservoir stoplog door laminated water taking temperature observation device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105300558A (en) * | 2015-11-20 | 2016-02-03 | 中国电建集团贵阳勘测设计研究院有限公司 | Layered water-taking water-temperature observation device of reservoir stop log gate and observation method of same |
| CN108680282A (en) * | 2018-04-18 | 2018-10-19 | 四川大学 | Vertical water temperature real-time monitoring device and method before a kind of large scale deep-water reservoir dam |
| CN109736251A (en) * | 2018-12-26 | 2019-05-10 | 中国水利水电科学研究院 | The calculation method and device for the temperature that sluices under Stoplog gate stratified pumping |
-
2015
- 2015-11-20 CN CN201520930961.2U patent/CN205246242U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105300558A (en) * | 2015-11-20 | 2016-02-03 | 中国电建集团贵阳勘测设计研究院有限公司 | Layered water-taking water-temperature observation device of reservoir stop log gate and observation method of same |
| CN108680282A (en) * | 2018-04-18 | 2018-10-19 | 四川大学 | Vertical water temperature real-time monitoring device and method before a kind of large scale deep-water reservoir dam |
| CN109736251A (en) * | 2018-12-26 | 2019-05-10 | 中国水利水电科学研究院 | The calculation method and device for the temperature that sluices under Stoplog gate stratified pumping |
| CN109736251B (en) * | 2018-12-26 | 2019-11-08 | 中国水利水电科学研究院 | The calculation method and device for the temperature that sluices under Stoplog gate stratified pumping |
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