Air cushion type surge chamber water filling device

Abstract

The utility model discloses an air cushion type surge chamber water filling device which comprises a water diversion pipeline, one end of the water diversion pipeline is connected with a river channel through a valve, a water level limiting structure is assembled at the upper end of a buffer water tank in a penetrating mode, and a liquid level sensor is assembled at the lower end of the water level limiting structure. The side end of the buffer water tank communicates with a water filling pipeline through a flow sensor, the controller controls the water flow speed adjusting structure to work, through the action of the water flow speed adjusting structure, the flow speed of water flow can be adjusted, the stability of equipment is guaranteed, and through the cooperation of the water level limiting structure and the buffer water tank, according to the water filling condition, the water filling pipeline is closed. The maximum water amount in the buffer water tank is controlled in advance, after the water amount meets the requirement, the liquid level sensor monitors the water level, the valve at the end of the water diversion pipeline is closed through the controller, at the moment, water in the buffer water tank can be evenly filled into the air cushion type pressure regulating chamber through the water filling pipeline, and the using effect of equipment is guaranteed; the problem that the water level exceeds a safety range is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to air cushion type pressure regulating chamber water filling technical field, concretely relates to an air cushion type pressure regulating chamber water filling device. BACKGROUND

[0002] Air cushion type pressure regulating chamber is as a new type pressure regulating chamber for attenuating water diversion tunnel flow transient process when power station load changes, is as one of important hydraulic structures satisfying the mode of guaranteeing the power station unit power generation regulation, the conventional pressure regulating chamber (well) scheme of long water diversion high water head needs to be arranged with upper and lower well mouth construction adit and long uphill road of connection of higher elevation, the height of pressure regulating well and pressure shaft is bigger, construction safety risk is high, often becomes the key construction position of whole project control period, adopts the air cushion type high pressure chamber long high pressure water diversion tunnel, the tunnel length and the height of pressure shaft can be shortened, can reduce its along the line construction adit elevation and reduce the length of the connected road, is favorable to natural environment protection and improvement construction safety environment, realizes rapid construction, the existing air cushion type pressure regulating chamber when carrying out water filling work, because water filling structure is relatively simple, flow velocity and water filling capacity are difficult to grasp, practicality is poor. SUMMARY

[0003] The utility model discloses a kind of air cushion type pressure regulating chamber water filling devices, to solve the problems presented in the above background technology.

[0004] To achieve the above object, the utility model provides the following technical scheme: an air cushion type pressure regulating chamber water filling device, including water diversion pipeline, one end of the water diversion pipeline is connected with river channel by valve, the other end of the water diversion pipeline is fixedly connected with buffer water tank, the lower end of the water diversion pipeline is fixedly equipped with water flow speed adjusting structure, the upper end of the buffer water tank is equipped with water level limiting structure, the lower end of the water level limiting structure is equipped with liquid level sensor, the side end of the buffer water tank is connected with water filling pipeline by flow sensor.

[0005] Preferably, the water flow speed adjusting structure includes hollow box body, the hollow box body is fixedly connected with the lower end of the water pipe, the inner wall lower end of the hollow box body is fixedly connected with hydraulic cylinder, the piston rod end of the hydraulic cylinder is fixedly equipped with limit plate, the limit plate is slidably connected in the inner chamber of hollow box body, the upper end of the limit plate is fixedly equipped with resistance plate, the resistance plate penetrates the lower side wall of water diversion pipeline and extends to its inside.

[0006] Preferably, the water level limiting structure comprises a support fixedly assembled to the surface of the buffer water tank, a motor fixedly assembled to the side wall of the support, a first gear fixedly assembled to the motor shaft end of the motor, a lower end of the first gear rotationally connected to the surface of the buffer water tank, a second gear rotationally assembled to the inner wall upper end of the buffer water tank, the first gear engaged with the second gear, a screw threadedly connected to the inner wall of the second gear, a limiting rod fixedly assembled to the upper end of one side of the screw, the limiting rod penetratingly inserted into the inner wall of the buffer water tank, and the screw and the lower end of the limiting rod both fixedly connected with the liquid level sensor.

[0007] Preferably, the outer wall of the flow resistance plate is fixedly assembled with a sealing rubber ring.

[0008] Compared with the prior art, the utility model has the advantages that the water is introduced into the buffer water tank through the water diversion pipeline connected with the river, the water flow speed is detected according to the flow sensor at the side end of the buffer water tank, and the water is filled into the air cushion type pressure regulating chamber through the water filling pipeline; when the water flow speed is abnormal, the water level in the pressure regulating chamber may fluctuate violently, which may impact the structure of the pressure regulating chamber and affect the stability thereof; at this time, the flow sensor detects the abnormal water flow speed, and the water flow speed adjusting structure is controlled to work through the controller; the water flow speed adjusting structure can adjust the water flow speed, thereby ensuring the stability of the equipment; through the cooperation of the water level limiting structure and the buffer water tank, the maximum water amount in the buffer water tank is controlled in advance according to the water filling condition; when the water amount meets the requirement, the liquid level sensor detects the water level, and the valve at the end of the water diversion pipeline is closed through the controller; at this time, the water in the buffer water tank is evenly filled into the air cushion type pressure regulating chamber through the water filling pipeline, thereby ensuring the use effect of the equipment, avoiding the problem that the water level exceeds the safety range, and being convenient and practical to use. BRIEF DESCRIPTION OF DRAWINGS

[0009] Figure 1 It is a structure perspective view of the utility model;

[0010] Figure 2 It is a plane cross-sectional view of the utility model;

[0011] Figure 3 It is Figure 2 It is an enlarged schematic view of structure in A;

[0012] Figure 4 It is a water flow speed adjusting structure perspective cross-sectional view;

[0013] Figure 5 It is Figure 2 It is an enlarged schematic view of structure in B.

[0014] In the figure: 1 - water conduit, 2 - buffer tank, 3 - water flow speed adjusting structure, 31 - hollow box body, 32 - hydraulic cylinder, 33 - limit plate, 34 - flow resistance plate, 4 - water level limiting structure, 41 - support, 42 - motor, 43 - first gear, 44 - screw rod, 45 - second gear, 46 - limit rod, 5 - liquid level sensor, 6 - flow sensor, 7 - water filling pipeline. DETAILED DESCRIPTION

[0015] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0016] Please refer to Figures 1-5 The utility model provides a kind of air cushion type pressure regulating chamber water filling device, including water conduit 1, one end of water conduit 1 is connected with river channel by valve, the other end of water conduit 1 is fixedly connected with buffer tank 2, the lower end of water conduit 1 is fixedly equipped with water flow speed adjusting structure 3, the upper end of buffer tank 2 is equipped with water level limiting structure 4, the lower end of water level limiting structure 4 is equipped with liquid level sensor 5, the side end of buffer tank 2 is connected with water filling pipeline 7 by flow sensor 6.

[0017] By water conduit 1 is connected with river channel, water is introduced into buffer tank 2, according to the flow sensor 6 of the side end of buffer tank 2, the speed of water flow is detected, and water is filled into air cushion type pressure regulating chamber by water filling pipeline 7, when water flow speed is abnormal, it can cause water level in pressure regulating chamber to fluctuate sharply, impact the structure of pressure regulating chamber, affect its stability, at this time, flow sensor 6 detects that water flow speed is abnormal, and water flow speed adjusting structure 3 is controlled to work by controller, by the action of water flow speed adjusting structure 3, the speed of water flow can be adjusted, to ensure the stability of equipment, by the cooperation of water level limiting structure 4 and buffer tank 2, according to the water filling condition, the maximum water amount in buffer tank 2 is controlled in advance, when water amount meets the demand, liquid level sensor 5 detects water level, and the valve at the end of water conduit is closed by controller, at this time, the water in buffer tank 2 will be evenly filled into air cushion type pressure regulating chamber through water filling pipeline 7, to ensure the use effect of equipment, avoid the problem that water level exceeds safe range, convenient to use, and strong practicality.

[0018] The water flow speed adjusting structure 3 comprises a hollow box 31 fixedly connected to the lower end of the water pipe 1, a hydraulic cylinder 32 penetratingly fixed to the lower end of the inner wall of the hollow box 31, a limit plate 33 fixedly assembled to the end of the piston rod of the hydraulic cylinder 32 and slidingly connected to the inner cavity of the hollow box 31, and a flow resistance plate 34 fixedly assembled to the upper end of the limit plate 33 and penetratingly extending into the water pipe 1.

[0019] When the flow sensor 6 detects abnormal water flow speed, the hydraulic cylinder 32 is controlled to be opened by the controller, and the limit plate 33 is controlled to be displaced by the piston rod of the hydraulic cylinder, the limit plate 33 keeps fixed vertical trajectory displacement in the inner cavity of the hollow box 31 and drives the flow resistance plate 34 to be lifted or lowered, so as to adjust the speed of the water flow and ensure the use effect of the equipment.

[0020] The water level limiting structure 4 comprises a support 41 fixedly assembled to the surface of the buffer water tank 2, a motor 42 fixedly assembled to the side wall of the support 41, a first gear 43 fixedly assembled to the motor shaft of the motor 42, the lower end of the first gear 43 rotatably connected to the surface of the buffer water tank 2, a second gear 45 rotatably assembled to the upper end of the inner wall of the buffer water tank 2, the first gear 43 engaged with the second gear 45, a screw rod 44 screwed to the inner wall of the second gear 45, and a limit rod 46 fixedly assembled to the upper end of one side of the screw rod 44 and penetratingly inserted into the inner wall of the buffer water tank 2, the lower end of the screw rod 44 and the limit rod 46 both fixedly connected to the liquid level sensor 5.

[0021] According to the need, the highest water level in the buffer water tank 2 is adjusted, the motor 42 is first opened, the first gear 43 is driven to rotate, and the second gear 45 engaged with the first gear 43 is driven to rotate reversely, at this time, the screw rod 44 is prevented from rotating by the limit rod 46 since the inner wall of the second gear 45 is screwed to the screw rod 44, the screw rod 44 is displaced longitudinally in the inner wall of the second gear 45, and the limit rod 46 and the liquid level sensor 5 at the lower end thereof are displaced, so as to adjust the lowest position of the probe head of the liquid level sensor 5 and limit the highest water level in the buffer water tank 2, thereby avoiding that the stability of the air cushion type pressure regulating chamber is affected by too much water and the working effect is poor due to too small water flow.

[0022] The outer wall of the flow resistance plate 34 is fixedly assembled with a sealing rubber ring.

[0023] The sealing rubber ring can prevent water from entering the hollow box 31 and ensure the sealing effect between the flow resistance plate 34 and the hollow box 31.

[0024] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An air cushion type surge chamber water filling device characterized by: The utility model provides a river water diversion device, including the water diversion pipeline (1), one end of water diversion pipeline (1) is connected with the river course through the valve, the other end of water diversion pipeline (1) is fixedly connected with the buffer water tank (2), the lower end of water diversion pipeline (1) is fixedly equipped with water flow speed adjusting structure (3), the upper end of buffer water tank (2) is equipped with water level limiting structure (4) through, the lower end of water level limiting structure (4) is equipped with liquid level sensor (5), the side end of buffer water tank (2) is connected with the water filling pipeline (7) through flow sensor (6).

2. A water filling device for an air cushion pressure regulating chamber according to claim 1, characterized in that: The water flow speed adjusting structure (3) includes a hollow box (31), the hollow box (31) is fixedly connected to the lower end of the water pipeline (1), the inner wall of the hollow box (31) is fixedly connected with a hydraulic cylinder (32) at the lower end, the piston rod end of the hydraulic cylinder (32) is fixedly connected with a limiting plate (33), the limiting plate (33) is slidingly connected to the inner cavity of the hollow box (31), the upper end of the limiting plate (33) is fixedly connected with a flow resistance plate (34), the flow resistance plate (34) penetrates the lower side wall of the water diversion pipeline (1) and extends into the interior thereof.

3. A water filling device for air cushion pressure regulating chamber according to claim 1, characterized in that: The water level limiting structure (4) includes a support (41), the support (41) is fixedly connected to the surface of the buffer water tank (2), the sidewall of the support (41) is fixedly connected with a motor (42), the motor shaft end of the motor (42) is fixedly connected with a first gear (43), the lower end of the first gear (43) is rotatably connected to the surface of the buffer water tank (2), the inner wall of the buffer water tank (2) is rotatably connected with a second gear (45), the first gear (43) is engaged with the second gear (45), the inner wall of the second gear (45) is screwed with a screw rod (44), the upper end of one side of the screw rod (44) is fixedly connected with a limiting rod (46), the limiting rod (46) penetrates and is inserted into the inner wall of the buffer water tank (2), the lower end of the screw rod (44) and the limiting rod (46) are fixedly connected with the liquid level sensor (5).

4. A device for filling a gas cushion pressure regulating chamber according to claim 2, characterized in that: The outer wall of the flow resistance plate (34) is fixedly connected with a sealing rubber ring.

Images