Lifting type reservoir stratified water taking system

Abstract

The utility model discloses a lifting type reservoir layering water taking system which comprises a water taking vertical shaft, a trash rack, a bulkhead gate, a bottom hole water taking gate, a lifting type water taking barrel, an emergency gate, a two-way trolley type hoist, a first fixed winch type hoist and a second fixed winch type hoist. A bottom plate platform, a water taking cylinder mounting platform, an overhauling platform and an opening and closing platform are arranged from bottom to top. When the water level of the reservoir in the flood season is high, the first fixed winch type hoist is used for operating the lifting type water taking barrel, and water in a set elevation range is taken along with the change of the water level. And when the water level in the non-flood season is lower than the water taking barrel mounting platform, the bottom-hole water taking gate is opened by the bidirectional trolley type hoist to take water at the bottom layer of the reservoir. When the low-water-level water taking vertical shaft needs to be overhauled and maintained, the two-way trolley type hoist is used for lifting the trash rack into the overhaul door chamber on one side of the trash rack groove section by section, and the overhaul gate is lifted into the trash rack groove from the overhaul door chamber section by section to stop water.

Description

Technical Field

[0001] The utility model relates to a water intake system applied to water conservancy projects, in particular to a lifting type reservoir layered water intake system. Background Technique

[0002] For water conservancy and hydropower projects with large dams of large reservoirs, generally, the reservoir capacity is large and the reservoir water depth is deep, which causes a certain degree of change in the spatial and temporal distribution of the original natural river water temperature. The water temperature in the reservoir forms a vertical distribution with high surface temperature and low bottom temperature. Moreover, the bottom water quality is relatively poor due to the accumulation of sediment and humus. Taking water from the bottom has a certain degree of adverse impact on the downstream ecological environment. Therefore, layered water intake measures need to be set at the water intake, and by raising the elevation of the water intake, the surface water of the reservoir is drawn to improve the temperature and quality of the discharged water.

[0003] Most of the existing and under-construction layered water intake measures are tower structures with multi-layer water intakes. By setting 2 to 3 fixed water intakes to meet the water intake requirements, however, this method has certain deficiencies. It can only take water at 2 to 3 set elevation planes and cannot be flexibly adjusted according to changes in seasons, water levels, water quality, etc., and it cannot ensure that high-quality water can be taken when needed. Other water intake types such as laminated gate towers, inclined horizontal types, sleeve types, tubular types, etc., although some can achieve free adjustment of the water intake elevation, often do not have maintenance conditions, causing many inconveniences to operation and management. Content of the Utility Model

[0004] In order to solve the problems existing in the above background technique, the utility model provides a lifting type reservoir layered water intake system, which can not only be flexibly controlled according to the reservoir water level and the requirements of the discharged water temperature, but also has maintenance and repair conditions, and is convenient for operation and management.

[0005] The technical solution adopted by the utility model is:

[0006] Lifting type reservoir layered water intake system, including a water intake shaft, a trash rack, a maintenance gate, a bottom hole water intake gate, a lifting type water intake cylinder, an emergency gate, a two-way trolley type hoist, a first fixed winch type hoist one, and a second fixed winch type hoist two. The water intake shaft is a reinforced concrete cylindrical structure, provided with four elevation platforms from bottom to top, namely a bottom plate platform, a water intake cylinder installation platform, a maintenance platform, and a hoist platform. The trash rack is arranged in the inlet trash rack groove of the water intake shaft. The maintenance gate is arranged in the maintenance gate chamber on one side of the trash rack groove. The bottom hole water intake gate is arranged in the gate groove of the bottom hole water intake gate closely downstream of the trash rack. The bottom hole water intake gate is usually closed to block water at the bottom plate platform, and a pull rod is set to the maintenance platform and is opened when bottom layer water needs to be taken. The lifting type water intake cylinder is fixedly arranged on the water intake cylinder installation platform. The emergency gate is arranged in the emergency gate groove closely downstream of the lifting type water intake cylinder, is usually open and locked on the maintenance platform, and is closed hydraulically to cut off the water flow when an accident occurs in the downstream tunnel. The two-way trolley type hoist is arranged on the hoist platform and can move along the track in the upstream and downstream directions, and is used to open and close the trash rack, the maintenance gate, and the bottom hole water intake gate. The first fixed winch type hoist is arranged on the hoist platform and is used to open and close the lifting type water intake cylinder. The second fixed winch type hoist is arranged on the hoist platform and is used to open and close the emergency gate.

[0007] Furthermore, the water intake shaft is a cylindrical thin-wall structure, the outer ring is a closed thin-wall cylinder, the water intake cylinder installation platform is circumferentially provided with support columns, and the support columns are provided with connecting beams at intervals in the vertical direction and are connected to the thin-wall cylinder. The bottom plate platform is provided with a water intake bottom hole, and the water intake cylinder installation platform is provided with a water intake middle hole.

[0008] Furthermore, both the trash rack and the maintenance gate are arranged in multiple sections of through holes. When the water intake shaft needs to be overhauled and maintained, the two-way trolley type hoist can be used to lift the trash rack in sections to the maintenance gate chamber on one side of the trash rack groove, and the maintenance gate can be lifted out of the maintenance gate chamber section by section and placed in the trash rack groove to block water.

[0009] Furthermore, the lifting type water intake cylinder is a multi-section telescopic tower-like structure, there are retaining rings between the sections, and the retaining rings have both supporting and water-stopping functions. The upper part of the lifting type water intake cylinder is provided with a top cover, the upper part of the top cover is provided with connecting lifting lugs, and the top cover is circumferentially provided with a guiding device, and the track of the guiding device is arranged on the support columns in the water intake shaft.

[0010] Furthermore, the lifting type water intake cylinder includes a top cover, a top telescopic section, a middle telescopic section, and a bottom telescopic section. The top cover is movably connected to the top telescopic section to form a water intake gap. The top telescopic section, the middle telescopic section, and the bottom telescopic section are buckled together and locked and limited by the retaining ring. The bottom of the bottom telescopic section is provided with a first-stage anchor foot and is anchored to the water intake cylinder installation platform.

[0011] Furthermore, the top cover includes a railing, a top cover box body, connecting lifting lugs, a guiding device, a top cover water seal, and connecting pins. The railing is arranged circumferentially above the top cover box body; the connecting lifting lugs are welded above the top cover box body and are connected to the lifting head of the first fixed winch hoist; the guiding device is welded circumferentially and at intervals on the outer ring of the top cover box body and moves vertically along the track arranged on the support column in the water intake shaft; the top cover water seal is connected to the lower part of the top cover box body circumferentially and at intervals by bolts and is in contact with and pressed against the top surface of the top telescopic joint; the connecting pins are welded circumferentially and at intervals to the lower part of the top cover box body and are movably connected to the top telescopic joint;

[0012] The top telescopic joint includes a first upper outer retaining ring, a first telescopic joint cylinder body, a first lower retaining ring, and a connecting sleeve. The first upper outer retaining ring is connected to the upper part of the first telescopic joint cylinder body circumferentially and by bolts; the first lower retaining ring is connected to the outer ring of the lower part of the first telescopic joint cylinder body circumferentially and by bolts; the connecting sleeve is welded circumferentially and at intervals to the inner ring of the upper part of the first telescopic joint cylinder body and is movably connected to the connecting pins at the lower part of the top cover box body.

[0013] The middle telescopic joint includes a second upper outer retaining ring, a second telescopic joint cylinder body, a second lower retaining ring, and a first upper inner retaining ring. The second upper outer retaining ring is connected to the upper part of the second telescopic joint cylinder body circumferentially and by bolts; the second lower retaining ring is connected to the outer ring of the lower part of the second telescopic joint cylinder body circumferentially and by bolts; the first upper inner retaining ring is connected to the outer ring of the upper part of the second telescopic joint cylinder body circumferentially and by bolts.

[0014] The bottom telescopic joint includes a third telescopic joint cylinder body, stiffening plates, first-stage anchor feet, and a second upper inner retaining ring. The stiffening plates are welded circumferentially and at intervals to the outer ring of the third telescopic joint cylinder body, the first-stage anchor feet are connected to the lower part of the third telescopic joint cylinder body circumferentially and by bolts; the second upper inner retaining ring is connected to the outer ring of the upper part of the third telescopic joint cylinder body circumferentially and by bolts.

[0015] When the reservoir water level is relatively high during the flood season, the first fixed winch hoist is used to operate the lifting water intake barrel, and water within a set elevation range can be taken according to the water level change.

[0016] When the water level is lower than the installation platform of the water intake barrel during the non-flood season, the bottom hole intake gate is opened by using the two-way trolley hoist to take water from the bottom layer of the reservoir.

[0017] The beneficial effects of the present utility model are:

[0018] 1. It can be flexibly controlled according to the reservoir water level and the requirement of the discharged water temperature, and the water intake elevation can be adjusted in real time within a set elevation range;

[0019] 2. The structure is simple and compact, the overall stability is good, and the water flow pattern at the annular water intake is relatively good;

[0020] 3. It has the conditions for inspection and maintenance, and can realize the lifting and cleaning of the trash rack, as well as the inspection and maintenance of the trash rack and the intake shaft.

[0021] 4. It can further realize automatic control by combining the measured water level of the water level gauge and the set intake water level, thereby optimizing the operation procedure, reducing the regulation time, and facilitating operation and management. Brief Description of the Drawings

[0022] Figure 1 It is a sectional view of the present utility model along the water flow direction during high water level water intake.

[0023] Figure 2 is Figure 1 the sectional view of I - I of

[0024] Figure 3 is Figure 1 the sectional view of II - II of

[0025] Figure 4 is Figure 1 the sectional view of III - III of

[0026] Figure 5 is Figure 1 the sectional view of IV - IV of

[0027] Figure 6 is Figure 1 the sectional view of V - V of

[0028] Figure 7 It is a sectional view of the present utility model along the water flow direction during low water level water intake;

[0029] Figure 8 It is a detailed view of an implementation manner of the lifting - type water intake barrel;

[0030] Figure 9 is Figure 8 the sectional view of VI - VI of

[0031] Figure 10 is Figure 8 the sectional view of VII - VII of

[0032] Figure 11 It is a detailed view of an implementation manner of the top cover of the lifting - type water intake barrel;

[0033] Figure 12 It is a detailed view of an implementation manner of the top expansion joint of the lifting - type water intake barrel;

[0034] Figure 13 It is a detailed view of an implementation manner of the middle expansion joint of the lifting - type water intake barrel;

[0035] Figure 14 It is a detailed view of an implementation manner of the bottom expansion joint of the lifting - type water intake barrel.

[0036] In the figure: 1 - water intake shaft, 11 - bottom plate platform, 12 - water intake cylinder installation platform, 13 - maintenance platform, 14 - hoisting platform, 15 - closed thin-walled cylinder, 16 - support column, 17 - connecting beam; 2 - trash rack; 3 - maintenance gate; 4 - bottom hole water intake gate, 41 - gate leaf, 42 - tie rod; 5 - lifting water intake cylinder, 51 - top cover, 511 - railing, 512 - top cover box body, 513 - connecting lifting lug, 514 - guiding device, 515 - top cover water seal, 516 - connecting pin, 52 - top expansion joint, 521 - first upper outer retaining ring, 522 - first expansion joint cylinder, 523 - first lower retaining ring, 524 - connecting sleeve, 53 - intermediate expansion joint, 531 - second upper outer retaining ring, 532 - second expansion joint cylinder, 533 - second lower retaining ring, 534 - first upper inner retaining ring, 54 - bottom expansion joint, 541 - third expansion joint cylinder, 542 - stiffening plate, 543 - first-stage anchor foot, 544 - second upper inner retaining ring; 6 - emergency gate; 7 - double-track trolley hoist; 8 - first fixed winch hoist; 9 - second fixed winch hoist. Detailed implementation mode

[0037] The following is a detailed introduction to the lifting type reservoir stratified water intake system of the present utility model with reference to the accompanying drawings:

[0038] As Figures 1 to 7 shown, the lifting type reservoir stratified water intake system of the present utility model includes a water intake shaft 1, a trash rack 2, a maintenance gate 3, a bottom hole water intake gate 4, a lifting water intake cylinder 5, an emergency gate 6, a double-track trolley hoist 7, a first fixed winch hoist 8, and a second fixed winch hoist 9. The water intake shaft 1 is a reinforced concrete cylinder structure, provided with four elevation platforms from bottom to top, namely a bottom plate platform 11, a water intake cylinder installation platform 12, a maintenance platform 13, and a hoisting platform 14. The trash rack 2 is arranged in the trash rack slot at the inlet of the water intake shaft 1. The maintenance gate 3 is arranged in the maintenance gate chamber on one side of the trash rack slot. The bottom hole water intake gate 4 is arranged in the bottom hole water intake gate slot closely downstream of the trash rack 2. The gate leaf 41 is usually closed to the bottom plate platform 11 to block water, and a tie rod 42 is set to the maintenance platform 13. When it is necessary to take water from the bottom layer, the bottom hole water intake gate 4 is opened. The lifting water intake cylinder 5 is fixedly arranged on the water intake cylinder installation platform 12. The emergency gate 6 is arranged in the emergency gate slot closely downstream of the lifting water intake cylinder 5, and is usually open and locked to the maintenance platform 13. When an accident occurs in the downstream tunnel, it is closed under dynamic water to cut off the water flow. The double-track trolley hoist 7 is arranged on the hoisting platform 14 and can move in the upstream and downstream directions along the track, and is used to open and close the trash rack 2, the maintenance gate 3, and the bottom hole water intake gate 4. The first fixed winch hoist 8 is arranged on the hoisting platform 14 and is used to open and close the lifting water intake cylinder 5. The second fixed winch hoist 9 is arranged on the hoisting platform 14 and is used to open and close the emergency gate 6.

[0039] The water intake shaft 1 is a thin-walled cylindrical structure. The outer ring is a closed thin-walled cylinder 15. The water intake cylinder installation platform 12 is circumferentially arranged with support columns 16. The support columns 16 are vertically spaced and provided with connecting beams 17 connected to the closed thin-walled cylinder 15. The bottom plate platform 11 is provided with a bottom water intake hole, and the water intake cylinder installation platform 12 is provided with a middle water intake hole.

[0040] The trash rack 2 and the maintenance gate 3 are both arranged in multiple sections of through holes. When the water intake shaft 1 needs to be repaired and maintained, the trash rack 2 can be lifted out in sections to the maintenance gate chamber on one side of the trash rack slot by using the two-way trolley-type hoist 7, and the maintenance gate 3 can be lifted out from the maintenance gate chamber to the trash rack slot section by section to block water.

[0041] As Figures 8 to 10 shown, the lifting water intake cylinder 5 includes a top cover 51, a top expansion joint 52, a middle expansion joint 53, and a bottom expansion joint 54. The top cover 51 is movably connected to the top expansion joint 52 through a connecting pin 516 and a connecting sleeve 524 to form a water intake gap; the top expansion joint 52, the middle expansion joint 53, and the bottom expansion joint 54 are buckled together, locked and limited by retaining rings, and also have a water stop function; the bottom of the bottom expansion joint 54 is provided with a first-stage anchor foot 543, which is anchored to the water intake cylinder installation platform 12.

[0042] As Figure 11 shown, the top cover 51 includes a railing 511, a top cover box body 512, a connecting lifting lug 513, a guiding device 514, a top cover water seal 515, and a connecting pin 516. The railing 511 is circumferentially arranged above the top cover box body 512 and is used for protection during maintenance; the connecting lifting lug 513 is welded above the top cover box body 512 and is connected to the lifting head of the first fixed winch-type hoist 8; the guiding device 514 is circumferentially and spacedly welded to the outer ring of the top cover box body 512 and vertically moves along the track arranged on the support column 16 in the water intake shaft 1 for guiding and limiting; the top cover water seal 515 is circumferentially and spacedly bolted to the lower part of the top cover box body 512 and contacts and presses against the top surface of the top expansion joint 52 to play a water stop role; the connecting pin 516 is circumferentially and spacedly welded to the lower part of the top cover box body 512 and is movably connected to the top expansion joint 52 to form a water intake gap.

[0043] As Figure 12 shown, the top expansion joint 52 includes a first upper outer retaining ring 521, a first expansion joint cylinder 522, a first lower retaining ring 523, and a connecting sleeve 524. The first upper outer retaining ring 521 is circumferentially and spacedly bolted to the upper part of the first expansion joint cylinder 522; the first lower retaining ring 523 is circumferentially and spacedly bolted to the outer ring of the lower part of the first expansion joint cylinder 522, and is embedded with sealing materials, which has both a supporting and a water stop function; the connecting sleeve 524 is circumferentially and spacedly welded to the inner ring of the upper part of the first expansion joint cylinder 522 and is movably connected to the connecting pin 516 below the top cover box body 512.

[0044] As Figure 13As shown in the figure, the middle expansion joint 53 includes a second upper outer retaining ring 531, a second expansion joint cylinder 532, a second lower retaining ring 533, and a first upper inner retaining ring 534. The second upper outer retaining ring 531 is circumferentially spaced and bolted above the second expansion joint cylinder 532; the second lower retaining ring 533 is circumferentially spaced and bolted to the outer ring below the second expansion joint cylinder 532, with a sealing material embedded therein, serving both as a support and a water stop; the first upper inner retaining ring 534 is circumferentially spaced and bolted to the outer ring above the second expansion joint cylinder 532 for support.

[0045] As Figure 14 As shown in the figure, the bottom expansion joint 54 includes a third expansion joint cylinder 541, stiffening plates 542, first-stage anchor feet 543, and a second upper inner retaining ring 544. The stiffening plates 542 are circumferentially spaced and welded to the outer ring of the third expansion joint cylinder 541 for strengthening. The first-stage anchor feet 543 are circumferentially spaced and bolted to the lower part of the third expansion joint cylinder 541 for easy disassembly; the second upper inner retaining ring 544 is circumferentially spaced and bolted to the outer ring above the third expansion joint cylinder 541 for support.

[0046] When the reservoir water level is relatively high during the flood season, the first fixed winch hoist 8 is used to operate the lifting water intake tube 5, and water within a set elevation range can be taken according to the water level change.

[0047] When the water level is lower than the water intake tube installation platform 12 during the non-flood season, the bottom hole water intake gate 4 is opened by the two-way trolley hoist 7 to take water from the bottom layer of the reservoir.

[0048] The above embodiments describe the present utility model in conjunction with the accompanying drawings, but it should not be construed as a limitation to the protection scope of the present utility model. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present utility model, the technical solutions obtained by equivalent substitution or equivalent transformation all fall within the protection scope of the present utility model.

Claims

1. Lifting reservoir stratified water intake system, characterized by: It includes a water intake shaft, a trash rack, a maintenance gate, a bottom hole water intake gate, a lifting water intake cylinder, an emergency gate, a two-way trolley-type hoist, a first fixed winch-type hoist, and a second fixed winch-type hoist; the water intake shaft is a reinforced concrete cylinder structure, and is provided with four elevation platforms from bottom to top, namely, a bottom plate platform, a water intake cylinder installation platform, a maintenance platform, and a hoisting platform; the trash rack is arranged in the trash rack groove at the inlet of the water intake shaft; the maintenance gate is arranged in the maintenance gate library on one side of the trash rack groove; the bottom hole water intake gate is arranged in the gate groove of the bottom hole water intake gate immediately downstream of the trash rack, and the bottom hole water intake gate is usually closed to the bottom plate platform to block water, and is provided with The pull rod is moved to the maintenance platform and opened when bottom water needs to be taken; the lifting water intake cylinder is fixedly arranged on the water intake cylinder installation platform; the emergency gate is arranged in the emergency gate slot immediately downstream of the lifting water intake cylinder, normally opened, and locked on the maintenance platform. When an accident occurs in the downstream tunnel, the dynamic water is closed to cut off the water flow; the two-way trolley-type hoist is arranged on the opening and closing platform, and can move upward and downstream along the track, and is used to open and close the trash rack, maintenance gate and bottom hole water intake gate; the first fixed winch-type hoist is arranged on the opening and closing platform, and is used to open and close the lifting water intake cylinder; the second fixed winch-type hoist is arranged on the opening and closing platform, and is used to open and close the emergency gate.

2. The lifting reservoir stratified water intake system according to claim 1 is characterized by: The water intake shaft is a cylindrical thin-walled structure, the outer circle of which is a closed thin-walled cylinder. The water intake cylinder installation platform is circumferentially arranged with support columns, and the support columns are spaced apart along the vertical direction with connecting beams connected to the thin-walled cylinder. The bottom plate platform is provided with a water intake bottom hole, and the water intake cylinder installation platform is provided with a water intake center hole.

3. The lifting reservoir stratified water intake system according to claim 1 is characterized in that: The trash rack and the inspection gate are both arranged with multiple through holes. When the water intake shaft needs to be inspected and maintained, the two-way trolley-type gate hoist lifts the trash rack in sections to the inspection gate garage on one side of the trash rack groove, and lifts the inspection gate from the inspection gate garage to the trash rack groove section by section to block water.

4. The lifting reservoir stratified water intake system according to claim 1 is characterized in that: When the reservoir water level is high during the flood season, the first fixed winch-type gate hoist operates the lifting water intake cylinder to take water within the set elevation range as the water level changes; when the water level is lower than the water intake cylinder installation platform during the non-flood season, the two-way trolley-type gate hoist opens the bottom hole water intake gate to take water from the bottom of the reservoir.

5. The lifting reservoir stratified water intake system according to claim 2 is characterized in that: The lifting water intake cylinder is a multi-section telescopic tower structure with retaining rings between the sections. The lifting water intake cylinder is provided with a top cover on the top, a connecting lug on the top of the top cover, a guide device is provided circumferentially on the top cover, and the track of the guide device is arranged on the support column in the water intake shaft.

6. The lifting reservoir stratified water intake system according to claim 5 is characterized by: The lifting water intake cylinder includes a top cover, a top telescopic joint, a middle telescopic joint, and a bottom telescopic joint. The top cover is movably connected to the top telescopic joint to form a water intake gap; the top telescopic joint, the middle telescopic joint and the bottom telescopic joint are interlocked and locked and limited by the retaining ring; an anchor foot is provided at the bottom of the bottom telescopic joint and anchored to the water intake cylinder installation platform.

7. The lifting reservoir stratified water intake system according to claim 6 is characterized by: The top cover includes a railing, a top cover box, a connecting lug, a guide device, a top cover water seal, and a connecting pin. The railing is arranged circumferentially above the top cover box; the connecting lug is welded to the top of the top cover box and connected to the lifting head of the first fixed winch-type gate hoist; the guide device is welded circumferentially to the outer ring of the top cover box at intervals, and moves vertically along the track arranged on the support column in the water intake shaft; the top cover water seal is connected to the bottom of the top cover box at intervals by bolts, and contacts and presses with the top surface of the top telescopic joint; The connecting pins are welded at intervals at the bottom of the top cover box body in an annular direction and are movably connected with the top telescopic joint; The top telescopic joint includes a first upper outer retaining ring, a first telescopic joint cylinder, a first lower retaining ring, and a connecting sleeve. The first upper outer retaining ring is connected to the top of the first telescopic joint cylinder with annularly spaced bolts; the first lower retaining ring is connected to the lower outer ring of the first telescopic joint cylinder with annularly spaced bolts; the connecting sleeve is welded to the upper inner ring of the first telescopic joint cylinder with annularly spaced bolts, and is movably connected to the lower connecting pin of the top cover box body.

8. The lifting reservoir stratified water intake system according to claim 6 is characterized by: The intermediate telescopic joint includes a second upper outer retaining ring, a second telescopic joint cylinder, a second lower retaining ring, and a first upper inner retaining ring. The second upper outer retaining ring is connected to the top of the second telescopic joint cylinder by annular spaced bolts; the second lower retaining ring is connected to the lower outer ring of the second telescopic joint cylinder by annular spaced bolts; and the first upper inner retaining ring is connected to the upper outer ring of the second telescopic joint cylinder by annular spaced bolts.

9. The lifting reservoir stratified water intake system according to claim 6, characterized in that: The bottom telescopic joint includes a third telescopic joint cylinder, a stiffening plate, a first-stage anchor foot, and a second upper inner retaining ring. The stiffening plate is welded to the outer ring of the third telescopic joint cylinder with annular intervals, and the first-stage anchor foot is connected to the bottom of the third telescopic joint cylinder with annular intervals by bolts; the second upper inner retaining ring is connected to the upper outer ring of the third telescopic joint cylinder with annular intervals by bolts.

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