Plane gate internode water filling and pressure balancing device and positioning method

Abstract

The invention provides a plane gate internode water filling and pressure balancing device and a positioning method, according to the technology, the sectional positions of an upper folding door body and a lower folding door body are determined as the mounting positions of the plane gate internode water filling and pressure balancing device through an equal opening and closing capacity method, and it is guaranteed that a plane gate is stable in the opening and closing process; the equal opening and closing capacity method comprises the steps that the opening force of the whole gate opened by still water is calculated, and on the basis of the principle that the opening force of the whole gate opened by still water is equal to the opening force of the upper folding gate body opened by dynamic water, the height from the segmented position to the center of the top water seal or the gate top is inversely calculated through the opening force equation of the upper folding gate body opened by dynamic water. The installation position is the installation position of the plane gate internode water filling and pressure-pressing device. Through an equal opening and closing capacity method, the opening height of the upper folding door body is quickly and reversely deduced according to the capacity of the hoist for opening the whole gate in still water, the technical problems that the upper folding door body is difficult to open, the gravity center is unstable and the like caused by unreasonable gate stacking height are solved, and the design efficiency is effectively improved.

Description

Technical Field

[0001] The invention relates to the technical field of metal structures of water conservancy and hydropower engineering, in particular to a planar gate inter-section filling and leveling device and a positioning method. Background Art

[0002] Plane gates are the most widely used type of gates in water conservancy and hydropower projects. They are usually used as special equipment to regulate flow and cut off water flow. Whether they can operate reliably is related to the safety and benefits of the project. When plane gates are used as inspection gates, emergency gates or water retaining gates, their opening conditions usually have to meet the requirements of static water opening and closing. Generally, a water filling valve is required to fill the water level and increase the pressure. However, poor operation of the water filling valve will lead to difficulty in equalizing the pressure, resulting in too long water filling time or strong vibration of the valve body due to overflow. Sometimes, the gate cannot even be opened, affecting the power generation or flood discharge of the project. If the plane gate cannot be opened due to the water filling valve during the flood discharge, the flood discharge channel will be blocked, inducing major safety accidents such as dam overflow, dam breach, and flooding of plant buildings. Therefore, the water filling valve is crucial to the safe operation of water conservancy and hydropower projects.

[0003] At present, there are two main locations for setting water filling valves: the top of the gate and the inter-section. For the water filling valve set on the top of the gate, because the valve body is only lifted to a certain height when filling water pressure, its opening and closing capacity is relatively low, and the opening and closing equipment capacity for operating the gate is sufficient. For the inter-section water filling pressure device, the gate is traditionally divided into an upper and lower stack of door bodies, and the lower part of the upper stack of the door body and the upper part of the lower stack of the door body are provided with ear plates at corresponding positions. The upper and lower stack of the door bodies are connected as a whole by two inter-section connecting plates symmetrically arranged on the outside and the ear plates are aligned with the upper and lower pins. Because the upper stack of the door body needs to be opened by moving water when filling water pressure, if the height of the upper stack of the door body is too large, the opening and closing equipment capacity will be insufficient to open the upper stack of the door body. If it is too small, the center of gravity will be unstable and tilted when the gate is raised from the orifice due to the large difference in height between the upper stack of the door body and the lower stack of the door body. At the same time, it is also difficult to enter the slot, and the traditional empirical method cannot be used quickly. Determine the reasonable gate segment position, the design efficiency is low; in addition, the top of the lower gate body is a beam grid structure. During the gate inter-segment filling and horizontal pressure process, when the water flows through the lower part of the upper gate body, it hits the inter-segment connecting plate and the pin shaft, which will cause backflow in the area between the two inter-segment connecting plates and the pin shaft and the top of the lower gate body, causing water flow turbulence and inducing gate vibration, and sometimes even causing engineering accidents and losses; in addition, because the inter-segment connecting plates and the pin shaft are heavy, it is troublesome to assemble and disassemble the inter-segment connecting plates and the pin shaft, and the number of inter-segment connecting plates and the pin shaft is large, and the increased investment is also large; therefore, the existing technology is still not perfect and needs to be further improved. Summary of the invention

[0004] The present invention provides a device for leveling and pressure-charging the inter-sections of a plane gate, and its purpose is to provide a device for leveling and pressure-charging the inter-sections of a plane gate and a positioning method in order to overcome the shortcomings of the prior art. Firstly, the device for leveling and pressure-charging the inter-sections cancels the inter-section connecting plates and a set of pin devices respectively clamped on both sides of the hanging plates of an upper stacking door body and a lower stacking door body in the prior art, and a set of pin devices are connected by extending a double upper hanging ear plate with an oblong hole symmetrically arranged on the top of the lower stacking door body into the double lower hanging ear plate of the upper stacking door body. Only one set of pin devices needs to be removed during assembly and disassembly, which is convenient and quick to operate and saves investment. Secondly, the device for leveling and pressure-charging the inter-sections arranges a drag reduction and drainage structure between the double upper hanging ear plates at the flow outlet when the lower stacking door body is leveled and pressure-charging, and transforms the lower part of the upper stacking door body and the top of the lower stacking door body into a partially enlarged diversion outlet, and the lower stacking door The top of the body is a closed surface with a grid-like structure, which effectively reduces the occurrence of water jumps and backflows at the gate when the water is filled with horizontal pressure, keeps the water outflow smooth, avoids the occurrence of water flow turbulence to a large extent, reduces the vibration of the gate when the water is filled with horizontal pressure, and effectively ensures the safety of the gate operation; finally, the positioning of the inter-section horizontal pressure device on the gate is determined according to the equal opening and closing capacity method, that is, the opening and closing capacity of the upper gate body opened by dynamic water is equal to the opening and closing capacity of the overall gate opened by static water, so that the height of the upper gate body can be quickly inferred according to the capacity of the hoist for the overall static water opening of the gate, so that the height of the upper gate body and the lower gate body can be close to each other to achieve a relatively close center of gravity, which solves the technical problems such as difficulty in opening the upper gate body and inclination due to unreasonable gate stacking height, and effectively improves the design efficiency.

[0005] The present invention provides the following technical solutions to achieve the above objectives:

[0006] A flat gate inter-section water filling and pressure relief device and positioning method, comprising an upper overlapping gate body and a lower overlapping gate body, wherein the upper overlapping gate body and the lower overlapping gate body are provided with a water filling and pressure relief device at the segmented positions, and characterized in that: the upper overlapping gate body and the lower overlapping gate body are connected by a lug plate, and a drag reduction and drainage structure is provided on the upstream side and the tail water side of the lug plate, the setting height of the drag reduction and drainage structure is greater than or equal to the water surface height in the open flow state after the water filling and pressure relief device is turned on, the drag reduction and drainage structure is a symmetrical protruding structure, and the drag reduction and drainage structure includes an isosceles triangle, a circle, an ellipse and a streamline.

[0007] Furthermore, a partially enlarged outlet is provided on the tailwater side of the drag reduction and drainage structure, and the partially enlarged outlet is gradually expanded, and the partially enlarged outlet includes semicircular, inclined, semi-elliptical and streamlined shapes.

[0008] A method for positioning a flat gate inter-section water-filling and water-pressure device, which determines the section positions of the upper and lower gate bodies as the installation positions of the flat gate inter-section water-filling and water-pressure device by using the equal opening and closing capacity method, so as to ensure that the flat gate is stable during the opening and closing process;

[0009] The equal opening and closing capacity method includes calculating the opening force of the whole gate opened by static water, based on the principle that the opening force of the whole gate opened by static water is equal to the opening force of the superimposed gate body opened by dynamic water, and the height of the segment position from the center of the top water seal or the top of the gate is calculated back through the opening force equation of the superimposed gate body opened by dynamic water, that is, the installation position of the horizontal pressure device between the plane gate segments.

[0010] Furthermore, the equal opening and closing capacity method comprises the following steps:

[0011] S1. Determine the type of plane gate;

[0012] S2. Calculate the door opening force F of the entire gate in static water by using the door opening force calculation formula Qs ;

[0013] S3. Based on the principle that the opening and closing capacity required for the upper gate body to be opened by dynamic water is equal to the opening and closing capacity of the entire gate to be opened by static water, the opening force F of the upper gate body to be opened by dynamic water is obtained. Qs `;

[0014] S4, the door opening force F based on the dynamic water opening of the upper overlapping door Qs `, calculate the height of the section position from the top water seal center or the door top through the door opening force calculation formula;

[0015] S5, the force F to open the entire gate based on static water Qs The door opening force F of the upper door body opened by dynamic water Qs `, select the gate hoist with corresponding opening and closing capacity according to the "Design Specifications for Gate Hoists of Water Conservancy and Hydropower Projects", "Design Specifications for Steel Gates of Water Conservancy and Hydropower Projects" and project requirements.

[0016] Furthermore, the types of plane gates include submerged maintenance gates, anti-landslide and surge submerged emergency gates, exposed top emergency gates, anti-surge exposed top emergency gates and water column submerged emergency gates;

[0017] Furthermore, the S2 comprises the following steps:

[0018] S201. Based on the gate type, the gate-opening force equation for opening the entire gate by static water is established according to the "Design Specifications for Hoists and Gates of Water Conservancy and Hydropower Projects" and "Design Specifications for Steel Gates of Water Conservancy and Hydropower Projects";

[0019] S202, calculating the resistance that needs to be overcome to open the entire gate in static water; the resistance includes gate support friction, water seal friction and water column pressure;

[0020] S203, the resistance to be overcome by still water to open the whole gate and the deadweight of the whole gate are substituted into the gate-opening force equation for still water to open the whole gate, and the gate-opening force F for still water to open the whole gate is calculated. Qs .

[0021] Furthermore, the S4 comprises the following steps:

[0022] S401. According to the "Design Specifications for Hoists and Gates of Water Conservancy and Hydropower Projects" and "Design Specifications for Steel Gates of Water Conservancy and Hydropower Projects", the gate opening force F of the upper gate body opened by dynamic water is established. Qs `Equation of;

[0023] S402, the height of the scoring section from the top water seal center or the door top is H x , based on H x The resistance equations that need to be overcome by dynamic water to open the upper door body and the self-weight equation of the upper door body are established respectively; the self-weight equation of the upper door body is established by the water pressure proportion method;

[0024] S403, based on F Qs =F Qs `, substitute the deadweight equation of the upper door body and the resistance equation that needs to be overcome by the dynamic water to open the upper door body into the door opening force F of the dynamic water to open the upper door body Qs In the equation, the height H of the node position from the top water seal center or the door top is calculated in reverse. x .

[0025] Furthermore, the plane gate is a submerged hole inspection gate;

[0026] The force equation for opening the entire gate by static water in S201 is: F Qs =n t (T zds +T zss )+n G G s , where T zds is the gate support friction, T zss is the water seal friction resistance, G s is the gate deadweight, n t is the friction resistance safety factor, n G is the self-weight correction factor;

[0027] The resistance in S202 includes the gate support friction T zds =f zd P s1 , where f zd is the gate support friction coefficient, water pressure P s1 =γ△HH zs B zs , △H is the gate water pressure difference, ranging from 1 to 5m, H zs B is the height from the center of the gate top water seal to the bottom sill. zs is the distance between the center of the side water seal, γ is the water density; water seal friction resistance T zss =f zs γ△H(2Hzs +B zs )K zs , where f zs is the friction coefficient of gate water seal;

[0028] In S203, the resistance and deadweight are substituted into the force equation F for opening the entire gate in still water. Qs =n t (T zds +T zss )+n G G s , the door opening force F is calculated Qs ;

[0029] The force equation F for opening the upper door body by water in S401 Qs `=n t (T zd2 +T zs2 )+n G G 上 ; where T zd2 is the friction resistance of the upper door body, T zs2 G is the water seal friction resistance of the upper door body, 上 It is the dead weight of the upper door body;

[0030] The resistance equation in S402 includes the friction resistance T of the upper door body support zd2 =f zd P2 and upper door water seal friction T zs2 =2f zs γ(H s -H zs +H x / 2)H x K zs +f zs γ(H s -H zs )B zs K zs ; The self-weight equation of the upper door body G 上 =P2G q / P 潜 , where P 潜 The water pressure when the gate blocks water, water pressure P 潜 =γ(2H s -H zs )H zs B zs / 2, water pressure P2 is the water pressure when the upper door body blocks water, water pressure P2 = γ(2H s +H x -2H zs )H x B zs / 2, where Hs is the design water head, G q For the gate's own weight;

[0031] The S403 is based on F Qs =F Qs `, substitute the above equation into the door opening force equation of the upper overlapping door body opened by dynamic water, and calculate the height of the segment position from the center of the top water seal as H x .

[0032] Furthermore, the plane gate is a landslide and surge prevention submerged hole accident gate;

[0033] The force equation for opening the entire gate by static water in S201 is: F Qs =n t (T zd1 `+T zs1 `)+n G G q `; where T zd1 ` is the gate support friction, T zs1 ` is the water seal friction resistance, G q `For the gate's own weight;

[0034] The resistance in S202 includes the gate support friction T zd1 `=f zd P1`; Water seal friction resistance T zs1 `=2f zs γ△HHK zs +f zs E(2H zs -2H+B zs ), where water pressure P1`=γ△HHB zs , E is the pre-compression force per unit length of the water seal;

[0035] In S203, the resistance and deadweight are substituted into the force equation F for opening the entire gate in still water. Qs =n t (T zd1 `+T zs1 `)+n G G q `, calculate the door opening force F Qs ;

[0036] The force equation F for opening the upper door body by water in S401 Qs `=n t (T zd2 `+T zs2 `)+n G G q上 ; where T zd2 ` is the friction resistance of the upper door body, T zs2` is the water seal friction resistance of the upper door body, G q上 It is the dead weight of the upper door body;

[0037] The resistance equation in S402 includes the friction resistance T of the upper door body support zd2 `=f zd P2` and upper door water seal friction resistance T zs2 `=f zs γ(H x +HH zs ) 2 K zs +f zs E(2H zs -2H+B zs ), where water pressure P2` = γ(H x +HH zs ) 2 B zs / 2; Self-weight equation of the upper door body G q上 =P2G q / P 潜 ;

[0038] The S403 is based on F Qs =F Qs `, substitute the above equation into the door opening force equation of the upper overlapping door body opened by dynamic water, and calculate the height of the segment position from the center of the top water seal as H x .

[0039] Furthermore, the plane gate is an exposed-top emergency gate;

[0040] The force equation for opening the entire gate by static water in S201 is: F Qs =n t (T zd3 +T zs3 )+n G G L ; where T zd3 is the gate support friction, T zs3 is the water seal friction resistance, G L For the gate's own weight;

[0041] The resistance in S202 includes the gate support friction T zd3 =f zd P3; Water seal friction resistance T zs3 =2f zs γ△HH s K zs ; Where water pressure P3 = γ△HH s B zs ;

[0042] In S203, the resistance and deadweight are substituted into the force equation F for opening the entire gate in still water. Qs =n t (T zd3 +T zs3 )+n G G L , the door opening force F is calculated Qs ;

[0043] The force equation F for opening the upper door body by water in S401 Qs `=n t (T zd3 `+T zs3 `)+n G G L上 ; where T zd3 ` is the friction resistance of the upper door body, T zs3 ` is the water seal friction resistance of the upper door body, G L上 It is the dead weight of the upper door body;

[0044] The resistance equation in S402 includes the friction resistance T of the upper door body support zd3 `=f zd P3` and upper door water seal friction resistance T zs3 `=f zs γH x 2 K zs ; The water pressure P when the top-mounted gate blocks water 露 =γH s 2 B zs / 2, water pressure P3`=γH x 2 B zs / 2; Self-weight equation of the upper door body G L上 =G L P3` / P 露 =G L (H x / H s ) 2 ;

[0045] The S403 is based on F Qs =F Qs `, substitute the above equation into the door-opening force equation of the upper overlapping door body opened by dynamic water, and calculate the height of the segment position from the door top as H x .

[0046] Furthermore, the plane gate is a surge-proof top-exposed emergency gate;

[0047] The force equation for opening the entire gate by static water in S201 is: F Qs =nt (T zd4 +T zs4 )+n G G L `; where T zd4 is the gate support friction, T zs4 is the water seal friction resistance, G L `For the gate's own weight,

[0048] The resistance in S202 includes the gate support friction T zd4 =f zd P4; Water seal friction resistance T zs4 =2f zs γ△HHK zs ; Where water pressure P4 = γ△HHB zs ;

[0049] In S203, the resistance and deadweight are substituted into the force equation F for opening the entire gate in still water. Qs =n t (T zd4 +T zs4 )+n G G L `, calculate the door opening force F Qs ;

[0050] The force equation F for opening the upper door body by water in S401 Qs `=n t (T zd4 `+T zs4 `)+n G G L上 `; where T zd4 ` is the friction resistance of the upper door body, T zs4 ` is the water seal friction resistance of the upper door body, G L上 ` is the deadweight of the upper door body;

[0051] The resistance equation in S402 includes the friction resistance T of the upper door body support zd4 `=f zd P4` and upper door water seal friction resistance T zs4 `=f zs γH x 2 K zs ; The water pressure during gate surge conditions P5 = γ(2H s -H)HB zs / 2, the water pressure of the upper gate body during surge conditions P5`=γ(2H s -2H+H x )H x B zs / 2, the self-weight equation of the upper door body GL上 `=G L `P5` / P5=0.5G L `γ(2H s -2H+H x )H x B zs / P5;

[0052] The S403 is based on F Qs =F Qs `, substitute the above equation into the door-opening force equation of the upper overlapping door body opened by dynamic water, and calculate the height of the segment position from the door top as H x .

[0053] Furthermore, the plane gate is a water column type submerged hole emergency gate;

[0054] The force equation for opening the entire gate by static water in S201 is: F Qs =n t (T zds +T zss )+W s +n G G s ; where T zds is the gate support friction, T zss is the water seal friction resistance, W s is the water column pressure, G s For the gate's own weight;

[0055] The resistance in S202 includes the gate support friction T zds =f zd P s1 ; Water seal friction resistance T zss =f zs γ△H(2H zs +B zs )K zs and water column pressure W s =γ△HB L (h L +S); where f zs is the friction coefficient of gate water seal, K zs B is the contact width between the gate water seal and the water stop seat plate 25, L h is the center distance of the outer side column web 33, L is the height of the top main beam 34, S is the height from the outer edge of the top water seal seat plate 35 to the rear flange 10 of the top main beam, and the water pressure P s1 =γ△HH zs B zs ;

[0056] In S203, the resistance and deadweight are substituted into the force equation F for opening the entire gate in still water. Qs=n t (T zds +T zss )+W s +n G G s , the door opening force F is calculated Qs ;

[0057] The force equation F for opening the upper door body by water in S401 Qs `=n t (T zds `+T zss `)+W s `+n G G s上 ; where T zds ` is the friction resistance of the upper door body, T zss ` is the water seal friction resistance of the upper door body, W s ` is the water column pressure, G s上 It is the dead weight of the upper door body;

[0058] The resistance equation S402 includes the upper door support friction resistance T zds `=f zd P s2 , Water seal friction resistance of upper door body T zss `=2f zs γ(H s -H zs +H x / 2)H x K zs +f zs γ(H s -H zs )B zs K zs and the water column pressure W of the upper stack door s `=γ(H s -H zs )B L h L ; Upper door weight equation G s上 =G s P s2 / P 潜 =0.5G s γ(2H s +H x -2H zs )H x B zs / P 潜 ; Where water pressure P s2 =γ(2H s +H x -2H zs )H x Bzs / 2;

[0059] The S403 is based on F Qs =F Qs `, substitute the above equation into the door opening force equation of the upper overlapping door body opened by dynamic water, and calculate the height of the segment position from the center of the top water seal as H x .

[0060] A planar gate inter-section filling and water pressure device for the aforementioned positioning method comprises an upper overlapping door body and a lower overlapping door body, wherein the upper overlapping door body and the lower overlapping door body are connected via a plurality of lug plates, wherein the lug plates comprise a double upper lug plate arranged on the top surface of the lower overlapping door body and a double lower lug plate arranged on the bottom surface of the upper overlapping door body, wherein the double upper lug plate and the double lower lug plate are connected via a pin device, and according to the engineering requirements of the inter-section filling and water pressure of the planar gate, the segmented positions of the upper overlapping door body and the lower overlapping door body are selected as the installation positions of the inter-section filling and water pressure device, and the upstream and downstream sides of the double upper lug plates at this installation position are provided with a drag reducing and drainage structure, and the drag reducing and water pressure structure is a symmetrical protruding structure, and the setting height of the drag reducing and water pressure structure is greater than or equal to the water surface height in the open flow state after the filling and water pressure device is turned on, and the water surface height in the open flow state after the filling and water pressure device is turned on is greater than the working stroke of the inter-section filling and water pressure device.

[0061] Furthermore, a partition is provided between the web of the top main beam and the closing plate at the installation position of the lower door body, and operating holes are provided on the partition and the web of the top main beam.

[0062] Furthermore, the drag reduction and drainage structure includes an isosceles triangle drag reduction and drainage structure, a round head drag reduction and drainage structure, an elliptical head drag reduction and drainage structure or a streamlined drag reduction and drainage structure.

[0063] Furthermore, the downstream side of the double lower hanging ear plates of the upper door body and the rear flange of the lower partition are provided with gradually expanding local expanded flow outlets; the local expanded flow outlets include semicircular local expanded flow outlets, inclined local expanded flow outlets, semi-elliptical local expanded flow outlets or streamlined local expanded flow outlets.

[0064] Beneficial Effects

[0065] Compared with the prior art, the present invention has the following beneficial effects:

[0066] 1. The positioning of the inter-section filling water pressure device on the gate of the present invention is determined according to the equal opening and closing capacity method, that is, the opening and closing capacity of the upper gate body opened by dynamic water is equal to the opening and closing capacity of the overall gate opened by static water. Therefore, the height of the upper gate body can be quickly inferred according to the capacity of the hoist opened by static water of the overall gate, so that the height of the upper gate body and the lower gate body are close to each other to a large extent, so as to achieve a relatively close center of gravity, solve the technical problems such as difficulty in opening the upper gate body and inclination caused by unreasonable gate stacking height, and effectively improve the design efficiency.

[0067] 2. The intersegment filling and leveling device of the present invention eliminates the intersegment connecting plates and a set of pin devices respectively clamped on both sides of the upper door body and the lower door body hanging plates in the prior art. A double upper hanging ear plate with oblong holes symmetrically arranged on the top of the lower door body is extended into the double lower hanging ear plate of the upper door body and then connected by a set of pin devices. Only one set of pin devices needs to be removed during assembly and disassembly, which is convenient and quick to operate and saves investment.

[0068] 3. The inter-section water-pressure charging and leveling device of the present invention arranges a drag-reducing and drainage structure between the double upper hanging ear plates at the flow outlet when the lower gate body is water-pressure charged and arranges a locally enlarged diversion outlet on the tailwater side, and sets the top of the lower gate body as a closed surface without a beam grid structure, which effectively reduces the occurrence of water jump and backflow at the gate when the water is pressure charged and the flow is excessive, so that the water outflow remains smooth, the occurrence of water flow turbulence is avoided to a large extent, the vibration of the gate when the water is pressure charged and the flow is excessive, and the safety of the gate operation is effectively guaranteed.

[0069] 4. The drag-reducing and drainage structure of the present invention is an isosceles triangle, round head, elliptical head, streamline and other structures symmetrically arranged at the front and rear ends of the double upper hanging plates of the lower stacking door body. The drag-reducing and drainage structure height b≥the water surface height in the open flow state after the filling valve is opened c>the inter-section filling water pressure working stroke a, which has the function of guiding water to flow through its two sides, effectively avoiding water flowing through the middle of the double upper hanging plates of the lower stacking door body and colliding with the inter-section connecting plates and the pin shaft to cause water flow turbulence, so that the water flow remains smooth during the flow. BRIEF DESCRIPTION OF THE DRAWINGS

[0070] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the prior art descriptions. Obviously, the drawings described below only relate to some embodiments of the present invention, and for those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative labor.

[0071] Figure 1 It is a calculation diagram of the submerged hole inspection gate of the present invention;

[0072] Figure 2 yes Figure 1 The large sample C picture;

[0073] Figure 3 yes Figure 2 D view of

[0074] Figure 4 yes Figure 1 BB cross-sectional view;

[0075] Figure 5 It is a schematic diagram of the internode filling and leveling device of the present invention;

[0076] Figure 6 yes Figure 5 AA section view;

[0077] Figure 7 It is a large-scale drawing of the connection structure between the upper door body and the lower door body;

[0078] Figure 8 It is a schematic diagram of calculation of the anti-landslide surge submerged hole accident gate of the present invention;

[0079] Fig. 9 yes Figure 8 FF cross-sectional view;

[0080] Fig.10 Figure 8 The large sample G map;

[0081] Fig.11 This is a schematic diagram of calculation of the exposed top emergency gate of the present invention;

[0082] Fig.12 yes Fig.11 II sectional view;

[0083] Fig.13 yes Fig.11 The large sample J diagram;

[0084] Fig.14 It is a schematic diagram of calculation of the surge protection top-exposed emergency gate of the present invention;

[0085] Fig.15 yes Fig.14 HH cross-sectional view;

[0086] Fig.16 yes Fig.14 Large sample L diagram;

[0087] Fig.17 It is a schematic diagram of calculation of a water column type submerged hole emergency gate of the present invention;

[0088] Fig.18 yes Fig.17 NN cross-sectional view;

[0089] Fig.19 yes Fig.17The large sample O picture;

[0090] Fig. 20 It is a schematic diagram of the installation of the isosceles triangle drag reduction and drainage structure of the internode inflatable water pressure device of the present invention;

[0091] Fig.21 It is a large-scale drawing of the isosceles triangle drag reduction and drainage structure;

[0092] Fig. 22 It is a schematic diagram of the installation of the round-head drag reduction and drainage structure of the inter-section filling and leveling device of the present invention;

[0093] Fig.23 This is a large-scale drawing of the round-headed drag reduction and drainage structure;

[0094] Fig.24 It is a schematic diagram of the installation of the elliptical head-shaped drag reduction and drainage structure of the internode inflatable water pressure device of the present invention;

[0095] Fig.25 This is a large-scale drawing of the elliptical head-shaped drag reduction and drainage structure;

[0096] Fig.26 It is a schematic diagram of the installation of the streamlined drag reduction and drainage structure of the internode inflatable horizontal pressure device of the present invention;

[0097] Fig. 27 This is a large-scale drawing of the streamlined drag reduction and drainage structure.

[0098] Figure numerals: 1-upper stack door body; 2-lower stack door body; 3-inter-section filling and horizontal pressure device; 4-long oval hole; 5-double upper hanging ear plate; 6-double lower hanging ear plate; 7-pin device; 8-arc structure; 9-closing plate; 10-top main beam rear flange plate; 11-isosceles triangle drag reduction and drainage structure; 12-long oval hole hanging plate; 13-long oval hole bearing plate; 14-round hole hanging plate; 15-round hole bearing plate; 16-lower partition rear flange; 17-corner limb; 18- Inclined surface; 19-web plate of top main beam; 20-operating hole; 21-partition plate; 22-gate top water seal; 23-bottom sill; 24-side water seal; 25-water stop seat plate; 26-round head drag reduction and drainage structure; 27-step surface; 28-breast wall inlet trumpet section; 29-elliptical head drag reduction and drainage structure; 30-elliptical arc structure; 31-wave-blocking gate; 32-streamlined drag reduction and drainage structure; 33-side column web plate; 34-top main beam; 35-top water seal seat plate. DETAILED DESCRIPTION

[0099] In order to enable those skilled in the art to better understand the solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0100] Embodiment 1. A method for positioning a flat gate inter-section pressure-inflating device, the positioning method is as follows, the structure reference Figures 1 to 7 :

[0101] S1. Determine that the type of the plane gate is a submerged hole inspection gate;

[0102] S2, S201, based on the gate type, according to the "Design Specifications for Hoists and Gates of Water Conservancy and Hydropower Projects" and "Design Specifications for Steel Gates of Water Conservancy and Hydropower Projects", establish the gate-opening force equation for opening the entire gate by static water; the gate-opening force equation is F Qs =n t (T zds +T zss )+n G G s , where T zds is the gate support friction, T zss is the water seal friction resistance, G s is the gate deadweight, n t is the friction resistance safety factor, n G is the self-weight correction factor;

[0103] S202, calculate the resistance that needs to be overcome to open the entire gate in static water; the resistance in S202 includes the gate support friction resistance T zds =f zd P s1 , where f zd is the gate support friction coefficient, water pressure P s1 =γ△HH zs B zs , △H is the gate water pressure difference, ranging from 1 to 5m, H zs B is the height from the center of the gate top water seal to the bottom sill. zs is the distance between the center of the side water seal, γ is the water density; water seal friction resistance T zss =f zs γ△H(2H zs +B zs )K zs , where f zs is the friction coefficient of gate water seal, K zs The contact width between the gate water seal and the water stop seat plate 25;

[0104] In S203, the resistance and deadweight are substituted into the force equation F for opening the entire gate in still water. Qs =n t (T zds +T zss )+n G G s , the door opening force F is calculated Qs ;

[0105] S3. Based on the principle that the opening and closing capacity required for the upper gate body to be opened by dynamic water is equal to the opening and closing capacity of the entire gate to be opened by static water, the opening force F of the upper gate body to be opened by dynamic water is obtained. Qs `;

[0106] S4, the door opening force equation F of the upper door body opened by dynamic water in S401 Qs `=n t (T zd2 +T zs2 )+n G G 上 ; where T zd2 is the friction resistance of the upper door body, T zs2 G is the water seal friction resistance of the upper door body, 上 It is the dead weight of the upper door body;

[0107] The resistance equation in S402 includes the friction resistance T of the upper door body support zd2 =f zd P2 and upper door water seal friction T zs2 =2f zs γ(H s -H zs +H x / 2)H x K zs +f zs γ(H s -H zs )B zs K zs ; The self-weight equation of the upper door body G 上 =P2G q / P 潜 , where P 潜 The water pressure when the gate blocks water, water pressure P 潜 =γ(2H s -H zs )H zs B zs / 2, water pressure P2 = γ(2H s +H x -2H zs )H x B zs / 2, where H s is the design water head, G q For the gate's own weight;

[0108] The S403 is based on F Qs =F Qs `, substitute the above equation into the door opening force equation of the upper overlapping door body opened by dynamic water, and calculate the height H of the segment position from the center of the top water seal x ;

[0109] FQs =n t (T zd2 +T zs2 )+n G G q上

[0110] =n t f zd ×P2+n t T zs2 +n G G q P2 / P

[0111] =P2(n t f zd +n G G q / P)+n t γf zs K zs [H x 2 +2(H s -H zs )H x +(H s -H zs )B zs ]

[0112] Cause t f zd +n G G q / P、n t γf zs K zs As a constant, let ζ=n t f zd +n G G q / P,η=n t γf zs K zs , then the above equation simplifies to F Qs =ζP2+η[H x 2 +2(H s -H zs )H x +(H s -H zs )B zs ],

[0113] make

[0114]

[0115] γζB zs / 2+η、γζB zs H s +2ηH s -γζB zs H zs -2ηH zs ,η(H s -H zs )B zs -F Qs ` is a constant, let a=γζB zs / 2+η、b=γζB zs H s +2ηH s -γζB zs H zs -2ηH zs , Therefore, according to the solution formula of the quadratic equation, we can get:

[0116]

[0117] S5, the force F to open the entire gate based on static water Qs The door opening force F of the upper door body opened by dynamic water Qs `, select the gate hoist with corresponding opening and closing capacity according to the "Design Specifications for Gate Hoists of Water Conservancy and Hydropower Projects", "Design Specifications for Steel Gates of Water Conservancy and Hydropower Projects" and project requirements.

[0118] Embodiment 2. A method for positioning a flat gate inter-section pressure-inflating device, the positioning method is as follows, the structure reference Figures 8 to 10 :

[0119] S1. Determine that the type of plane gate is a landslide surge submerged hole emergency gate;

[0120] S2. The force equation for opening the entire gate by static water in S201 is: F Qs =n t (T zd1 `+T zs1 `)+n G G q `; where T zd1 ` is the gate support friction, T zs1 ` is the water seal friction resistance, G q `For the gate's own weight;

[0121] The resistance in S202 includes the gate support friction T zd1 `=f zd P1`; Water seal friction resistance T zs1 `=2f zs γ△HHK zs +f zsE(2H zs -2H+B zs ), where water pressure P1`=γ△HHB zs , E is the pre-compression force per unit length of the water seal;

[0122] In S203, the resistance and deadweight are substituted into the force equation F for opening the entire gate in still water. Qs =n t (T zd1 `+T zs1 `)+n G G q `, calculate the door opening force F Qs ;

[0123] S3. Based on the principle that the opening and closing capacity required for the upper gate body to be opened by dynamic water is equal to the opening and closing capacity of the entire gate to be opened by static water, the opening force F of the upper gate body to be opened by dynamic water is obtained. Qs `;

[0124] S4, the door opening force equation F of the upper door body opened by dynamic water in S401 Qs `=n t (T zd2 `+T zs2 `)+n G G q上 ; where T zd2 ` is the friction resistance of the upper door body, T zs2 ` is the water seal friction resistance of the upper door body, G q上 It is the dead weight of the upper door body;

[0125] The resistance equation in S402 includes the friction resistance T of the upper door body support zd2 `=f zd P2` and upper door water seal friction resistance T zs2 `=f zs γ(H x +HH zs ) 2 K zs +f zs E(2H zs -2H+B zs ), where water pressure P2` = γ(H x +HH zs ) 2 B zs / 2; Self-weight equation of the upper door body G q上 =P2G q / P 潜 ;

[0126] The S403 is based on F Qs =F Qs`, substitute the above equation into the door opening force equation of the upper overlapping door body opened by dynamic water, and calculate the height of the segment position from the center of the top water seal as H x ;

[0127] F Qs `=n t (T zd2 `+T zs2 `)+n G G q上

[0128]

[0129] Cause t γf zd B zs / 2+n t f zs γK zs 、n G G q γB zs (H s -H zs ) / P、0.5n G G q γB zs / P is a constant, let ζ`=n t γf zd B zs / 2+n t f zs γK zs ,η`=n G G q γB zs (H s -H zs ) / P,ξ`=0.5n G G q γB zs / P

[0130]

[0131] Because ζ`+ξ`, 2ζ`H+η`-2ζ`H zs , ζ`(HH zs ) 2 +n t f zs E(2H zs -2H+B zs )-F Qs ` is a constant, let a`=ζ`+ξ`, b`=, 2ζ`H+η`-2ζ`H zs , Therefore, according to the solution formula of the quadratic equation, we can get:

[0132]

[0133] S5, the force F to open the entire gate based on static water Qs The door opening force F of the upper door body opened by dynamic water Qs `, select the gate hoist with corresponding opening and closing capacity according to the "Design Specifications for Gate Hoists of Water Conservancy and Hydropower Projects", "Design Specifications for Steel Gates of Water Conservancy and Hydropower Projects" and project requirements.

[0134] Embodiment 3. A method for positioning a flat gate inter-section pressure-inflating device, the positioning method is as follows, the structure reference Figures 11 to 13 :

[0135] S1. Determine that the type of plane gate is an exposed top emergency gate;

[0136] S2. The force equation for opening the entire gate by static water in S201 is: F Qs =n t (T zd3 +T zs3 )+n G G L ; where T zd3 is the gate support friction, T zs3 is the water seal friction resistance, G L For the gate's own weight;

[0137] The resistance in S202 includes the gate support friction T zd3 =f zd P3; Water seal friction resistance T zs3 =2f zs γ△HH s K zs ; Where water pressure P3 = γ△HH s B zs ;

[0138] In S203, the resistance and deadweight are substituted into the force equation F for opening the entire gate in still water. Qs =n t (T zd3 +T zs3 )+n G G L , the door opening force F is calculated Qs ;

[0139] S3. Based on the principle that the opening and closing capacity required for the upper gate body to be opened by dynamic water is equal to the opening and closing capacity of the entire gate to be opened by static water, the opening force F of the upper gate body to be opened by dynamic water is obtained. Qs `;

[0140] S4, the door opening force equation F of the upper door body opened by dynamic water in S401 Qs`=n t (T zd3 `+T zs3 `)+n G G L上 ; where T zd3 ` is the friction resistance of the upper door body, T zs3 ` is the water seal friction resistance of the upper door body, G L上 It is the dead weight of the upper door body;

[0141] The resistance equation in S402 includes the friction resistance T of the upper door body support zd3 `=f zd P3` and upper door water seal friction resistance T zs3 `=f zs γH x 2 K zs ; The water pressure P when the top-mounted gate blocks water 露 =γH s 2 B zs / 2, water pressure P3`=γH x 2 B zs / 2; Self-weight equation of the upper door body G L上 =G L P3` / P 露 =G L (H x / H s ) 2 ;

[0142] The S403 is based on F Qs =F Qs `, substitute the above equation into the door-opening force equation of the upper overlapping door body opened by dynamic water, and calculate the height of the segment position from the door top as H x ;

[0143]

[0144]

[0145] S5, the force F to open the entire gate based on static water Qs The door opening force F of the upper door body opened by dynamic water Qs `, select the gate hoist with corresponding opening and closing capacity according to the "Design Specifications for Gate Hoists of Water Conservancy and Hydropower Projects", "Design Specifications for Steel Gates of Water Conservancy and Hydropower Projects" and project requirements.

[0146] Embodiment 4. A method for positioning a flat gate inter-section pressure-inflating device, the positioning method is as follows, the structure reference Figures 14 to 16 :

[0147] S1. Determine that the type of plane gate is a surge protection top-exposed emergency gate;

[0148] S2. The force equation for opening the entire gate by static water in S201 is F Qs =n t (T zd4 +T zs4 )+n G G L `; where T zd4 is the gate support friction, T zs4 is the water seal friction resistance, G L `For the gate's own weight,

[0149] The resistance in S202 includes the gate support friction T zd4 =f zd P4; Water seal friction resistance T zs4 =2f zs γ△HHK zs ; Where water pressure P4 = γ△HHB zs ;

[0150] In S203, the resistance and deadweight are substituted into the force equation F for opening the entire gate in still water. Qs =n t (T zd4 +T zs4 )+n G G L `, calculate the door opening force F Qs ;

[0151] S3. Based on the principle that the opening and closing capacity required for the upper gate body to be opened by dynamic water is equal to the opening and closing capacity of the entire gate to be opened by static water, the opening force F of the upper gate body to be opened by dynamic water is obtained. Qs `;

[0152] S4, the door opening force equation F of the upper door body opened by dynamic water in S401 Qs `=n t (T zd4 `+T zs4 `)+n G G L上 `; where T zd4 ` is the friction resistance of the upper door body, T zs4 ` is the water seal friction resistance of the upper door body, G L上 ` is the deadweight of the upper door body;

[0153] The resistance equation in S402 includes the friction resistance T of the upper door body support zd4 `=f zd P4` and upper door water seal friction resistance T zs4 `=f zs γHx 2 K zs ; The water pressure during gate surge conditions P5 = γ(2H s -H)HB zs / 2, the water pressure of the upper gate body during surge conditions P5`=γ(2H s -2H+H x )H x B zs / 2, the self-weight equation of the upper door body G L上 `=G L `P5` / P5=0.5G L `γ(2H s -2H+H x )H x B zs / P5;

[0154] The S403 is based on F Qs =F Qs `, substitute the above equation into the door-opening force equation of the upper overlapping door body opened by dynamic water, and calculate the height of the segment position from the door top as H x ;

[0155]

[0156] Cause t γf zd B zs / 2+n t γf zs K zs +0.5n G G L `γB zs / P5、n G G L `γB zs (Hs-H) / P5 is a constant, let α=n t γf zd B zs / 2+n t γf zs K zs +0.5n G G L `γB zs / P5, β=n G G L `γB zs (Hs-H) / P5, then: αH x 2 +βH x -F Qs `=0, so according to the solution formula of the quadratic equation, we can get:

[0157]

[0158] S5, the force F to open the entire gate based on static water Qs The door opening force F of the upper door body opened by dynamic water Qs `, select the gate hoist with corresponding opening and closing capacity according to the "Design Specifications for Gate Hoists of Water Conservancy and Hydropower Projects", "Design Specifications for Steel Gates of Water Conservancy and Hydropower Projects" and project requirements.

[0159] Embodiment 5. A method for positioning a flat gate inter-section pressure-inflating device, the positioning method is as follows, the structure reference Figures 17 to 19 :

[0160] S1. Determine that the type of plane gate is a water column submerged hole emergency gate;

[0161] S2. The force equation for opening the entire gate by static water in S201 is: F Qs =n t (T zds +T zss )+W s +n G G s ; where T zds is the gate support friction, T zss is the water seal friction resistance, W s is the water column pressure, G s For the gate's own weight;

[0162] The resistance in S202 includes the gate support friction T zds =f zd P s1 ; Water seal friction resistance T zss =f zs γ△H(2H zs +B zs )K zs and water column pressure W s =γ△HB L (h L +S); where f zs is the friction coefficient of gate water seal, K zs B is the contact width between the gate water seal and the water stop seat plate 25, L h is the center distance of the outer side column web 33, L is the height of the top main beam 34, S is the height from the outer edge of the top water seal seat plate 35 to the rear flange 10 of the top main beam, and the water pressure P s1 =γ△HH zs B zs ;

[0163] In S203, the resistance and deadweight are substituted into the force equation F for opening the entire gate in still water.Qs =n t (T zds +T zss )+W s +n G G s , the door opening force F is calculated Qs ;

[0164] S3. Based on the principle that the opening and closing capacity required for the upper gate body to be opened by dynamic water is equal to the opening and closing capacity of the entire gate to be opened by static water, the opening force F of the upper gate body to be opened by dynamic water is obtained. Qs `;

[0165] S4, the door opening force equation F of the upper door body opened by dynamic water in S401 Qs `=n t (T zds `+T zss `)+W s `+n G G s上 ; where T zds ` is the friction resistance of the upper door body, T zss ` is the water seal friction resistance of the upper door body, W s ` is the water column pressure, G s上 It is the dead weight of the upper door body;

[0166] The resistance equation S402 includes the upper door support friction resistance T zds `=f zd P s2 , Upper door water seal friction resistance T zss `=2f zs γ(H s -H zs +H x / 2)H x K zs +f zs γ(H s -H zs )B zs K zs and the water column pressure W of the upper door s `=γ(H s -H zs )B L h L ; Upper door weight equation G s上 =G s P s2 / P 潜 =0.5G s γ(2H s +H x -2H zs )H x Bzs / P; water pressure P s2 =γ(2H s +H x -2H zs )H x B zs / 2;

[0167] The S403 is based on F Qs =F Qs `, substitute the above equation into the door opening force equation of the upper overlapping door body opened by dynamic water, and calculate the height of the segment position from the center of the top water seal as H x ;

[0168] F Qs `=n t (T zds `+T zss `)+W s `+n G G s上

[0169] =n t f zd ×P s2 +n t T zss `+γ(H s -H zs )B L (h L +S)+n G G s P s2 / P

[0170] =P s2 (n t f zd +G s / P)+n t f zs γK zs (2H s -2H zs +H x )H x +n t f zs γ(H s -H zs )B zs K zs +γ(H s -H zs )B L (h L +S)

[0171] =γB zs (n t f zd+G s / P)(H s +0.5H x -H zs )H x +n t f zs γK zs (2H s -2H zs +H x )H x +n t f zs γ(H s -H zs )B zs K zs +γ(H s -H zs )B L (h L +S)

[0172] Since γB zs (n t f zd +G s / P), n t f zs γK zs is a constant value, let ζ1 = γB zs (n t f zd +G s / P), η1 = n t f zs γK zs , then

[0173] Since 0.5ζ1 + η1, ζ1H s +2η1H s -ζ1H zs -2η1H zs , n t f zs γ(H s -H zs )B zs K zs +γ(H s -H zs )B L (h L +S)-F Q is a constant value, let α` = 0.5ζ1 + η1, β` = ζ1H s +2η1H s -ζ1H zs -2η1H zs , ε = n tf zs γ(H s -H zs )B zs K zs +γ(H s -H zs )B L (h L +S)-F Q α`H x 2 +β`H x +ε=0, so according to the solution formula of the quadratic equation:

[0174]

[0175] S5, the force F to open the entire gate based on static water Qs The door opening force F of the upper door body opened by dynamic water Qs `, select the gate hoist with corresponding opening and closing capacity according to the "Design Specifications for Gate Hoists of Water Conservancy and Hydropower Projects", "Design Specifications for Steel Gates of Water Conservancy and Hydropower Projects" and project requirements.

[0176] Embodiment 6: A planar gate inter-section filling and leveling device for the aforementioned positioning method, the structure of which is referenced Figures 5 to 7 , including an upper door body 1 and a lower door body 2, the upper door body 1 and the lower door body 2 are connected by a plurality of ear plates, the ear plates include a double upper ear plate 5 arranged on the top surface of the lower door body 2 and a double lower ear plate 6 arranged on the bottom surface of the upper door body 1, the double upper ear plate 5 and the double lower ear plate 6 are connected by a pin device 7, according to the engineering requirements of the inter-section horizontal filling and pressure relief of the plane gate, the segmented position of the upper door body 1 and the lower door body 2 is selected as the installation position of the inter-section horizontal filling and pressure relief device, the upstream and downstream sides of the double upper ear plate 5 of this installation position are provided with a drag reduction and drainage structure, and the drag reduction and drainage structure is a symmetrical protruding structure, the setting height of the drag reduction and drainage structure is greater than or equal to the water surface height in the open flow state after the horizontal filling and pressure relief device is turned on, and the water surface height in the open flow state after the horizontal filling and pressure relief device is turned on is greater than the inter-section horizontal filling and pressure relief working stroke setting; the drag reduction and drainage structure is an isosceles triangle drag reduction and drainage structure 11, the structure reference Figures 20 to 21The double upper hanging ear plate 5 is welded by an oblong hole hanging plate 12 and an oblong hole bearing plate 13, and the double lower hanging ear plate 6 is welded by a round hole hanging plate 14 and a round hole bearing plate 15; the isosceles triangle drag reduction and drainage structure 11 is composed of two symmetrical angle limbs 17, and one end of the angle limb 17 connected to the double upper hanging ear plate 5 is provided with a matching inclined surface 18, and the isosceles triangle drag reduction and drainage structure 11 is welded to the oblong hole bearing plate 13 through the inclined surface 18. By setting the height of the drag reduction and drainage structure to be greater than or equal to the water surface height in the open flow state after the filling water pressure device is turned on, it can effectively prevent the water flow from flowing through the middle of the double upper hanging plates of the lower stacking door body and colliding with the inter-section connecting plate and the pin shaft to cause water flow turbulence, so that the water flow remains smooth during the flow. The lower door body 2 is provided with a partition plate 21 between the top main beam web 19 and the closing plate 9 at the installation position, and operation holes 20 are provided on the partition plate 21 and the top main beam web 19; the operation holes 20 are provided to facilitate the removal of the pin device 7 and the installation of the inter-section filling and leveling device.

[0177] Example 7. The structure of this example is similar to that of Example 6. The only difference is that the drag reduction and drainage structure is a round-head drag reduction and drainage structure 26. Figures 22 to 23 The round-head drag reduction and drainage structure 26 is provided with a step surface 27 at one end connected to the double upper hanging ear plate 5, and the round-head drag reduction and drainage structure 26 is welded to the oblong hole bearing plate 13 through the step surface 27. By setting the height of the drag reduction and drainage structure to be greater than or equal to the water surface height in the open flow state after the filling and water pressure device is turned on, it can effectively prevent the water flow from flowing through the middle of the double upper hanging plates of the lower stacking door body and colliding with the inter-section connecting plate and the pin shaft to cause water flow turbulence, so that the water flow remains smooth during the flow.

[0178] Example 8. The structure of this example is similar to that of Example 7. The only difference is that the drag reduction and drainage structure is an elliptical head-shaped drag reduction and drainage structure 29. Figures 24 to 25 The end of the elliptical head-shaped drag reduction and drainage structure 29 connected to the double upper hanging ear plate 5 is provided with a step surface 27, and the elliptical head-shaped drag reduction and drainage structure 29 is welded to the oblong hole bearing plate 13 through the step surface 27. By setting the height of the drag reduction and drainage structure to be greater than or equal to the water surface height in the open flow state after the filling level pressure device is turned on, it can effectively prevent the water flow from flowing through the middle of the double upper hanging plates of the lower stacking door body and colliding with the inter-section connecting plate and the pin shaft to cause water flow turbulence, so that the water flow remains smooth during the flow.

[0179] Example 9. The structure of this example is similar to that of Example 7. The only difference is that the drag reduction and drainage structure is a streamlined drag reduction and drainage structure 32. Figures 26 to 27The streamlined drag reduction and drainage structure 32 is provided with a step surface 27 at one end connected to the double upper hanging ear plate 5, and the streamlined drag reduction and drainage structure 32 is welded to the oblong hole bearing plate 13 through the step surface 27. By setting the height of the drag reduction and drainage structure to be greater than or equal to the water surface height in the open flow state after the filling and water pressure device is turned on, it can effectively prevent the water flow from flowing through the middle of the double upper hanging plates of the lower stacking door body and colliding with the inter-section connecting plate and the pin shaft to cause water flow turbulence, so that the water flow remains smooth during the flow.

[0180] Embodiment 10. This embodiment adds a local enlarged outlet on the basis of embodiment 6. The structure is referenced to Figure 2 , 10 , 13, 16 and 19, further improve the flow effect of water flow, the water flow can smoothly pass through the local expanded diversion outlet when flowing, reduce the occurrence of water flow turbulence, and reduce the vibration of the gate when the filling level flows; the tail water side of the double lower hanging ear plate 6 of the upper stacked door body 1 and the rear flange 16 of the lower partition are provided with a gradually expanding local expanded outlet; the local expanded outlet includes a semicircular local expanded outlet, a sloped local expanded outlet, a semi-elliptical local expanded outlet or a streamlined local expanded outlet. In actual engineering applications, the isosceles triangle drag reduction and drainage structure 11 can be used in combination with any one of the semicircular locally expanded outlets, the inclined locally expanded outlets, the semi-elliptical locally expanded outlets and the streamlined locally expanded outlets. By setting the locally expanded outlets in coordination with the drag reduction and drainage structure, the occurrence of water jumps and backflows at the gate when the water is filled with horizontal pressure can be effectively reduced, the water outflow can be kept smooth, the occurrence of water flow turbulence can be avoided to a large extent, the vibration of the gate when the water is filled with horizontal pressure can be reduced, and the safety of the gate operation can be effectively guaranteed.

[0181] Example 11. This example adds a local enlarged outlet on the basis of Example 7. The structure is referenced to Figure 2 , 10, 13, 16 and 19, further improve the flow effect of water flow, the water flow can smoothly pass through the local expanded diversion outlet when flowing, reduce the occurrence of water flow turbulence, and reduce the vibration of the gate when the filling level flows; the tail water side of the double lower hanging ear plate 6 of the upper stacked door body 1 and the rear flange 16 of the lower partition are provided with a gradually expanding local expanded outlet; the local expanded outlet includes a semicircular local expanded outlet, a sloped local expanded outlet, a semi-elliptical local expanded outlet or a streamlined local expanded outlet. In actual engineering applications, the round-headed drag reduction and drainage structure 26 can be used in combination with any one of the semicircular locally enlarged outlets, the sloped locally enlarged outlets, the semi-elliptical locally enlarged outlets and the streamlined locally enlarged outlets. By setting the locally enlarged outlet in coordination with the drag reduction and drainage structure, the occurrence of water jumps and backflows at the gate when the water is filled with horizontal pressure can be effectively reduced, so that the water outflow remains smooth, the occurrence of water flow turbulence is avoided to a large extent, the vibration of the gate when the water is filled with horizontal pressure can be reduced, and the safety of the gate operation is effectively guaranteed.

[0182] Example 12. This example adds a local enlarged outlet on the basis of Example 8. The structure is referenced to Figure 2 , 10 , 13, 16 and 19, further improve the flow effect of water flow, the water flow can smoothly pass through the local expanded diversion outlet when flowing, reduce the occurrence of water flow turbulence, and reduce the vibration of the gate when the filling level flows; the tail water side of the double lower hanging ear plate 6 of the upper stacked door body 1 and the rear flange 16 of the lower partition are provided with a gradually expanding local expanded outlet; the local expanded outlet includes a semicircular local expanded outlet, a sloped local expanded outlet, a semi-elliptical local expanded outlet or a streamlined local expanded outlet. In actual engineering applications, the elliptical head drag reduction and drainage structure 29 can be used in combination with any one of the semicircular locally enlarged outlets, the inclined locally enlarged outlets, the semi-elliptical locally enlarged outlets and the streamlined locally enlarged outlets. By setting the locally enlarged outlet in coordination with the drag reduction and drainage structure, the occurrence of water jumps and backflows at the gate when the water is filled with horizontal pressure can be effectively reduced, the water outflow can be kept smooth, the occurrence of water flow turbulence can be avoided to a large extent, the vibration of the gate when the water is filled with horizontal pressure can be reduced, and the safety of the gate operation can be effectively guaranteed.

[0183] Example 14. This example adds a local enlarged outlet on the basis of Example 9. The structure is referenced to Figure 2 , 10, 13, 16 and 19, further improve the flow effect of water flow, the water flow can smoothly pass through the local expanded diversion outlet when flowing, reduce the occurrence of water flow turbulence, and reduce the vibration of the gate when the filling level flows; the downstream side of the double lower hanging ear plate 6 of the upper stacked door body 1 and the rear flange 16 of the lower partition are provided with a gradually expanding local expanded outlet; the local expanded outlet includes a semicircular local expanded outlet, a sloped local expanded outlet, a semi-elliptical local expanded outlet or a streamlined local expanded outlet. In actual engineering applications, the streamlined drag reduction and drainage structure 32 can be used in combination with any one of the semicircular locally enlarged outlets, the inclined locally enlarged outlets, the semi-elliptical locally enlarged outlets and the streamlined locally enlarged outlets. By setting the locally enlarged outlet in coordination with the drag reduction and drainage structure, the occurrence of water jumps and backflows at the gate when the water is filled with horizontal pressure can be effectively reduced, so that the water outflow remains smooth, the occurrence of water flow turbulence is avoided to a large extent, the vibration of the gate when the water is filled with horizontal pressure can be reduced, and the safety of the gate operation is effectively guaranteed.

[0184] Obviously, the above is only a part of the embodiments of the present invention, not all of the embodiments. The above embodiments are not intended to limit the present invention. For those skilled in the art, the present invention may have various changes and variations. Any combination, modification, equivalent replacement, improvement and all other embodiments that can be made by those of ordinary skill in the art within the spirit and principle of the present invention should be within the protection scope of the present invention.

Claims

1. A method for positioning a flat gate inter-section pressure-inflating device, Features: The equal opening and closing capacity method is used to determine the segmented positions of the upper and lower gate bodies as the installation positions of the plane gate inter-segment filling and pressure-reducing devices, ensuring that the plane gate is stable during the opening and closing process; The equal opening and closing capacity method includes calculating the opening force of the whole gate opened by static water, based on the principle that the opening force of the whole gate opened by static water is equal to the opening force of the superimposed gate body opened by dynamic water, and the height of the segment position from the center of the top water seal or the top of the gate is calculated back through the opening force equation of the superimposed gate body opened by dynamic water, that is, the installation position of the horizontal pressure device between the plane gate segments.

2. The positioning method according to claim 1, Features: The equal opening and closing capacity method comprises the following steps: S1. Determine the type of plane gate; S2. Calculate the door opening force F of the entire gate in static water by using the door opening force calculation formula Qs ; S3. Based on the principle that the opening and closing capacity required for the upper gate body to be opened by dynamic water is equal to the opening and closing capacity of the entire gate to be opened by static water, the opening force F of the upper gate body to be opened by dynamic water is obtained. Qs `; S4, the door opening force F based on the dynamic water opening of the upper overlapping door Qs `, calculate the height of the section position from the top water seal center or the door top through the door opening force calculation formula; S5, the force F to open the entire gate based on static water Qs The door opening force F of the upper door body opened by dynamic water Qs `, select the gate hoist with corresponding opening and closing capacity according to the "Design Specifications for Gate Hoists of Water Conservancy and Hydropower Projects", "Design Specifications for Steel Gates of Water Conservancy and Hydropower Projects" and project requirements.

3. The positioning method according to claim 2, Features: The types of plane gates include submerged maintenance gates, anti-landslide and surge submerged emergency gates, exposed-top emergency gates, anti-surge exposed-top emergency gates and water column submerged emergency gates.

4. The positioning method according to claim 3, Features: The S2 comprises the following steps: S201. Based on the gate type, the gate-opening force equation for opening the entire gate by static water is established according to the "Design Specifications for Hoists and Gates of Water Conservancy and Hydropower Projects" and "Design Specifications for Steel Gates of Water Conservancy and Hydropower Projects"; S202, calculating the resistance that needs to be overcome to open the entire gate in static water; the resistance includes gate support friction, water seal friction and water column pressure; S203, the resistance to be overcome by still water to open the whole gate and the deadweight of the whole gate are substituted into the gate-opening force equation for still water to open the whole gate, and the gate-opening force F for still water to open the whole gate is calculated. Qs .

5. The positioning method according to claim 4, Features: The S4 comprises the following steps: S401. According to the "Design Specifications for Hoists and Gates of Water Conservancy and Hydropower Projects" and "Design Specifications for Steel Gates of Water Conservancy and Hydropower Projects", the gate opening force F of the upper gate body opened by dynamic water is established. Qs `Equation of; S402, the height of the scoring section from the top water seal center or the door top is H x , based on H x The resistance equations that need to be overcome by dynamic water to open the upper door body and the self-weight equation of the upper door body are established respectively; the self-weight equation of the upper door body is established by the water pressure proportion method; S403, based on F Qs =F Qs `, substitute the deadweight equation of the upper door body and the resistance equation that needs to be overcome by the dynamic water to open the upper door body into the door opening force F of the dynamic water to open the upper door body Qs In the equation, the height H of the node position from the top water seal center or the door top is calculated in reverse. x .

6. The positioning method according to claim 5, Features: The plane gate is a submerged hole inspection gate; The force equation for opening the entire gate by static water in S201 is: F Qs =n t (T zds +T zss )+n G G s , where T zds is the gate support friction, T zss is the water seal friction resistance, G s is the gate deadweight, n t is the friction resistance safety factor, n G is the self-weight correction factor; The resistance in S202 includes the gate support friction T zds =f zd P s1 , where f zd is the gate support friction coefficient, water pressure P s1 =γ△HH zs B zs , △H is the gate water pressure difference, ranging from 1 to 5m, H zs B is the height from the center of the gate top water seal to the bottom sill. zs is the distance between the center of the side water seal, γ is the water density; water seal friction resistance T zss =f zs γ△H(2H zs +B zs )K zs , where f zs is the friction coefficient of gate water seal, K zs The contact width between the gate water seal and the water stop seat plate 25; In S203, the resistance and deadweight are substituted into the force equation F for opening the entire gate in still water. Qs =n t (T zds +T zss )+n G G s , the door opening force F is calculated Qs ; The force equation F for opening the upper door body by water in S401 Qs `=n t (T zd2 +T zs2 )+n G G 上 ; where T zd2 is the friction resistance of the upper door body, T zs2 G is the water seal friction resistance of the upper door body, 上 It is the dead weight of the upper door body; The resistance equation in S402 includes the friction resistance T of the upper door body support zd2 =f zd P 2 And the water seal friction resistance of the upper door body T zs2 =2f zs γ(H s -H zs +H x / 2)H x K zs +f zs γ(H s -H zs )B zs K zs ; The self-weight equation of the upper door body G 上 =P 2 G q / P 潜 , where P 潜 The water pressure when the plane submerged hole gate blocks water, the water pressure P 潜 =γ(2H s -H zs )H zs B zs / 2, water pressure P 2 =γ(2H s +H x -2H zs )H x B zs / 2, where H s is the design head, G q For the gate's own weight; The S403 is based on F Qs =F Qs `, substitute the above equation into the door opening force equation of the upper overlapping door body opened by dynamic water, and calculate the height of the segment position from the center of the top water seal as H x .

7. The positioning method according to claim 5, Features: The plane gate is a submerged hole emergency gate to prevent landslide and surge; The force equation for opening the entire gate by static water in S201 is: F Qs =n t (T zd1 `+T zs1 `)+n G G q `; where T zd1 ` is the gate support friction, T zs1 ` is the water seal friction resistance, G q `For the gate's own weight; The resistance in S202 includes the gate support friction T zd1 `=f zd P 1 `; Water seal friction resistance T zs1 `=2f zs γ△HHK zs +f zs E(2H zs -2H+B zs ), where water pressure P 1 `=γ△HHB zs , E is the pre-compression force per unit length of the water seal; In S203, the resistance and deadweight are substituted into the force equation F for opening the entire gate in still water. Qs =n t (T zd1 `+T zs1 `)+n G G q `, calculate the door opening force F Qs ; The force equation F for opening the upper door body by water in S401 Qs `=n t (T zd2 `+T zs2 `)+n G G q上 ; where T zd2 ` is the friction resistance of the upper door body, T zs2 ` is the water seal friction resistance of the upper door body, G q上 It is the dead weight of the upper door body; The resistance equation in S402 includes the friction resistance T of the upper door body support zd2 `=f zd P 2 ` and the upper door water seal friction resistance T zs2 `=f zs γ(H x +HH zs ) 2 K zs +f zs E(2H zs -2H+B zs ), where water pressure P 2 `=γ(H x +HH zs ) 2 B zs / 2; self-weight equation of the upper door body G q上 =P 2 G q / P 潜 ; The S403 is based on F Qs =F Qs `, substitute the above equation into the door opening force equation of the upper overlapping door body opened by dynamic water, and calculate the height of the segment position from the center of the top water seal as H x .

8. The positioning method according to claim 5, Features: The plane gate is an exposed top emergency gate; The force equation for opening the entire gate by static water in S201 is: F Qs =n t (T zd3 +T zs3 )+n G G L ; where T zd3 is the gate support friction, T zs3 is the water seal friction resistance, G L For the gate's own weight; The resistance in S202 includes the gate support friction T zd3 =f zd P 3 ; Water seal friction resistance T zs3 =2f zs γ△HH s K zs ; Where water pressure P 3 =γ△HH s B zs ; In S203, the resistance and deadweight are substituted into the force equation F for opening the entire gate in still water. Qs =n t (T zd3 +T zs3 )+n G G L , the door opening force F is calculated Qs ; The force equation F for opening the upper door body by water in S401 Qs `=n t (T zd3 `+T zs3 `)+n G G L上 ; where T zd3 ` is the friction resistance of the upper door body, T zs3 ` is the water seal friction resistance of the upper door body, G L上 It is the dead weight of the upper door body; The resistance equation in S402 includes the friction resistance T of the upper door body support zd3 `=f zd P 3 ` and the upper door water seal friction resistance T zs3 `=f zs γH x 2 K zs ; The water pressure P when the top-mounted gate blocks water 露 =γH s 2 B zs / 2, water pressure P 3 `=γH x 2 B zs / 2; self-weight equation of the upper door body G L上 =G L P 3 ` / P 露 =G L (H x / H s ) 2 ; The S403 is based on F Qs =F Qs `, substitute the above equation into the door-opening force equation of the upper overlapping door body opened by dynamic water, and calculate the height of the segment position from the door top as H x .

9. The positioning method according to claim 5, Features: The plane gate is a surge-proof top-exposed emergency gate; The force equation for opening the entire gate by static water in S201 is: F Qs =n t (T zd4 +T zs4 )+n G G L `; where T zd4 is the gate support friction, T zs4 is the water seal friction resistance, G L `For the gate's own weight, The resistance in S202 includes the gate support friction T zd4 =f zd P 4 ; Water seal friction resistance T zs4 =2f zs γ△HHK zs ; Where water pressure P 4 =γ△HHB zs ; In S203, the resistance and deadweight are substituted into the force equation F for opening the entire gate in still water. Qs =n t (T zd4 +T zs4 )+n G G L `, calculate the door opening force F Qs ; The force equation F for opening the upper door body by water in S401 Qs `=n t (T zd4 `+T zs4 `)+n G G L上 `; where T zd4 ` is the friction resistance of the upper door body, T zs4 ` is the water seal friction resistance of the upper door body, G L上 ` is the deadweight of the upper door body; The resistance equation in S402 includes the friction resistance T of the upper door body support zd4 `=f zd P 4 ` and the upper door water seal friction resistance T zs4 `=f zs γH x 2 K zs ; The water pressure P during gate surge conditions 5 =γ(2H s -H)HB zs / 2, water pressure P of the upper gate body during surge conditions 5 `=γ(2H s -2H+H x )H x B zs / 2, the self-weight equation of the upper door body G L上 `=G L `P 5 ` / P 5 =0.5G L `γ(2H s -2H+H x )H x B zs / P 5 ; The S403 is based on F Qs =F Qs `, substitute the above equation into the door-opening force equation of the upper overlapping door body opened by dynamic water, and calculate the height of the segment position from the door top as H x .

10. The positioning method according to claim 5, Features: The plane gate is a water column type submerged hole emergency gate; The force equation for opening the entire gate by static water in S201 is: F Qs =n t (T zds +T zss )+W s +n G G s ; where T zds is the gate support friction, T zss is the water seal friction resistance, W s is the water column pressure, G s For the gate's own weight; The resistance in S202 includes the gate support friction T zds =f zd P s1 , where water pressure P s1 =γ△HH zs B zs ; Water seal friction resistance T zss =f zs γ△H(2H zs +B zs )K zs and water column pressure W s =γ△HB L (h L +S), where f zs is the friction coefficient of gate water seal, K zs B is the contact width between the gate water seal and the water stop seat plate 25, L h is the center distance of the outer side column web 33, L is the height of the top main beam 34, S is the height from the outer edge of the top water seal seat plate 35 to the rear flange 10 of the top main beam; In S203, the resistance and deadweight are substituted into the force equation F for opening the entire gate in still water. Qs =n t (T zds +T zss )+W s +n G G s , the door opening force F is calculated Qs ; The force equation F for opening the upper door body by water in S401 Qs `=n t (T zds `+T zss `)+W s `+n G G s上 ; where T zds ` is the friction resistance of the upper door body, T zss ` is the water seal friction resistance of the upper door body, W s ` is the water column pressure, G s上 It is the dead weight of the upper door body; The resistance equation S402 includes the upper door support friction resistance T zds `=f zd P s2 , Upper door water seal friction resistance T zss `=2f zs γ(H s -H zs +H x / 2)H x K zs +f zs γ(H s -H zs )B zs K zs and the water column pressure W of the upper door s `=γ(H s -H zs )B L h L ; Upper door weight equation G s上 =G s P s2 / P 潜 =0.5G s γ(2H s +H x -2H zs )H x B zs / P; water pressure P 潜 =γ(2H s -H zs )H zs B zs / 2,P s2 =γ(2H s +H x -2H zs )H x B zs / 2; The S403 is based on F Qs =F Qs `, substitute the above equation into the door opening force equation of the upper overlapping door body opened by dynamic water, and calculate the height of the segment position from the center of the top water seal as H x .

11. A planar gate inter-section filling and leveling device for the positioning method according to any one of claims 1 to 10, comprising an upper door body (1) and a lower door body (2), the upper door body (1) and the lower door body (2) being connected by a plurality of lug plates, the lug plates comprising a double upper lug plate (5) arranged on the top surface of the lower door body (2) and a double lower lug plate (6) arranged on the bottom surface of the upper door body (1), the double upper lug plate (5) and the double lower lug plate (6) being connected by a pin device (7), Features: According to the engineering requirements of the inter-section water leveling and pressure-charging of the plane gate, the segmented positions of the upper and lower gate bodies are selected as the installation positions of the inter-section water leveling and pressure-charging device. The upstream and downstream sides of the double upper hanging ear plates (5) of this installation position are provided with a drag reduction and drainage structure, and the drag reduction and drainage structure is a symmetrical protruding structure. The setting height of the drag reduction and drainage structure is greater than or equal to the water surface height in the open flow state after the water leveling and pressure-charging device is turned on, and the water surface height in the open flow state after the water leveling and pressure-charging device is turned on is greater than the working stroke of the inter-section water leveling and pressure-charging device.

12. The planar gate inter-section inflatable pressure device according to claim 11, Features: The lower door body (2) is provided with a partition plate (21) between the top main beam web plate (19) and the closing plate (9) at the installation position, and operating holes (20) are provided on the partition plate (21) and the top main beam web plate (19).

13. The planar gate inter-section inflatable pressure device according to claim 11, Features: The drag reduction and drainage structure comprises an isosceles triangle drag reduction and drainage structure (11), a round head drag reduction and drainage structure (26), an elliptical head drag reduction and drainage structure (29) or a streamline drag reduction and drainage structure (32).

14. The planar gate inter-section inflatable pressure device according to claim 11, Features: The downstream side of the double lower hanging ear plates (6) of the upper stacking door body (1) and the rear flange (16) of the lower partition are provided with a gradually expanding local expansion outlet; the local expansion outlet includes a semicircular local expansion outlet, a sloped local expansion outlet, a semi-elliptical local expansion outlet or a streamlined local expansion outlet.

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