CN210371001U

CN210371001U - Tail water embedded part of hydropower station

Info

Publication number: CN210371001U
Application number: CN201921264015.3U
Authority: CN
Inventors: 吴昊
Original assignee: Zhejiang Dinghao New Energy Equipment Co ltd
Current assignee: Zhejiang Dinghao New Energy Equipment Co ltd
Priority date: 2019-08-06
Filing date: 2019-08-06
Publication date: 2020-04-21
Anticipated expiration: 2029-08-06

Abstract

A tail water embedded part of a hydropower station belongs to the field of auxiliary equipment of the hydropower station and comprises a fixed plate, an upper cover, a lower cover, a hydraulic telescopic shaft and a plurality of springs; the upper cover sets up with the lower cover relatively, and the one side that the lower cover was kept away from to the upper cover is provided with the fixed plate, the terminal surface that the fixed plate is close to the upper cover all fixedly is provided with the connecting axle all around, the end wall fixedly connected with slide mechanism of upper cover is passed to the one end that the fixed plate was kept away from to the connecting axle, the lower cover is close to the terminal surface of upper cover and all fixedly is provided with a plurality of spring about the side, the inside hydraulic telescoping shaft that has all cup jointed of a plurality of spring, hydraulic telescoping shaft one end and upper cover fixed connection, the other end and lower cover power are connected, this device simple structure, reduce required time and the human cost of measurement to draft tube mounted position, through setting up hydraulic system, the flexibility of reinforcing device, in addition, it avoids the device to become invalid.

Description

Tail water embedded part of hydropower station

Technical Field

The utility model belongs to power station auxiliary assembly field, in particular to tail water built-in fitting of power station.

Background

The draft tube is one of the important composition structures of the hydroelectric power plant. The draft tube is a water guide flow channel structure close to the outlet of the runner of the reaction type water turbine, guides the water flow flowing out of the runner of the water turbine to be connected with downstream tail water, and can recover part of kinetic energy of the water flow flowing out of the runner.

At present, the requirement of high coaxiality and installation size is required for the installation of the draft tube, multiple times of measurement and debugging are often required to determine the installation position, and a great deal of time and labor are consumed.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome the above-mentioned defect and not enough, and provide a multi-functional extensible composite set.

In order to solve the technical problems, the following technical scheme is adopted:

a tail water embedded part of a hydropower station comprises a fixed plate, an upper cover, a lower cover, a hydraulic telescopic shaft and a plurality of springs; the upper cover and the lower cover are oppositely arranged, a fixing plate is arranged on one side of the upper cover, which is far away from the lower cover, connecting shafts are fixedly arranged on the periphery of the end face, which is close to the upper cover, of the fixing plate, one end, which is far away from the fixing plate, of each connecting shaft penetrates through the end wall of the upper cover and is fixedly connected with a sliding mechanism, a plurality of springs are fixedly arranged on the left side and the right side of the end face, which is close to the upper cover, of the lower cover, a hydraulic telescopic shaft is sleeved inside each spring, one end of the hydraulic telescopic shaft is fixedly connected with the upper cover, the other end of the hydraulic telescopic shaft is in power connection with the lower cover, and a first assembly; a second assembly cavity is formed in the end face, opposite to the upper cover and the lower cover, of the upper cover, the second assembly cavity and the first assembly cavity are mirror bodies with the same structure, namely when the upper cover is in contact with the lower cover, the second assembly cavity and the first assembly cavity are symmetrical about the contact position; and a draft tube is accommodated between the second assembly cavity and the first assembly cavity.

Further, the surfaces of the first assembling cavity and the second assembling cavity are fixedly provided with protective films.

Further, slide mechanism includes sliding block and slip chamber, the inside cavity of upper cover is provided with the slip chamber, the inside slip of slip chamber is provided with the sliding block, the sliding block is close to the terminal surface and the connecting axle fixed connection of fixed plate.

Further, a hydraulic system is arranged inside the lower cover, the hydraulic system is designed in a conventional hydraulic mode and comprises a liquid storage cavity, a hydraulic pump and a connecting pipe, the liquid outlet end of the liquid storage cavity is fixedly connected with the input end of the hydraulic pump, and the output end of the hydraulic pump is fixedly connected with the connecting pipe.

Furthermore, one end of each spring is fixedly connected with the lower cover, and the other end of each spring is fixedly connected with the upper cover in a contact or contact mode.

By adopting the scheme, the method has the following effects:

this device simple structure reduces required time and the human cost of measurement to draft tube mounted position, through setting up hydraulic system, ensures the relative distance's of upper cover and lower cover adjustable and stable controllable, strengthens the flexibility of device, in addition, sets up a plurality of spring and is used for buffering and absorbing purpose in the device working process, avoids the device to lose efficacy because the vibration to influence the work efficiency of draft tube.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a schematic view of the upper cover of the present invention;

fig. 3 is a schematic top view of the middle and lower covers of the present invention;

FIG. 4 is a schematic view of the front view structure of the middle and lower covers of the present invention;

FIG. 5 is a schematic view of a front sectional partial structure of the middle upper cover of the present invention;

in the figure: 1-lower cover; 2-covering the upper cover; 3, fixing a plate; 4-a spring; 5-a first assembly chamber; 6-hydraulic telescopic shaft; 7-second assembly chamber.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

The tail water embedded part of the hydropower station shown in figures 1-5 comprises a fixing plate 8, an upper cover 2, a lower cover 1, a hydraulic telescopic shaft 6 and a plurality of springs 4.

The upper cover 2 and the lower cover 1 are oppositely arranged, a fixing plate 8 is arranged on one side, away from the lower cover 1, of the upper cover 2, connecting shafts are fixedly arranged on the periphery of the end face, close to the upper cover 2, of the fixing plate 8, one ends, away from the fixing plate 8, of the connecting shafts penetrate through the end wall of the upper cover 2 and are fixedly connected with a sliding mechanism, a plurality of springs 4 are fixedly arranged on the left side and the right side, close to the end face of the upper cover 2, of the lower cover 1, hydraulic telescopic shafts 6 are sleeved inside the springs 4, one ends of the hydraulic telescopic shafts 6 are fixedly connected with the upper cover 2, the other ends of the hydraulic telescopic shafts are in power connection with the lower cover 1, and first assembling cavities 5 are formed in the end faces, opposite to the lower cover; a second assembly cavity 7 is formed in the opposite end face of the upper cover 2 and the lower cover 1, the second assembly cavity 7 and the first assembly cavity 5 are mirror bodies with the same structure, namely when the upper cover 2 and the lower cover 1 are in contact connection, the second assembly cavity 7 and the first assembly cavity 5 are symmetrical about the contact connection position; and a draft tube is accommodated between the second assembly cavity 7 and the first assembly cavity 5, so that the draft tube is clamped through the second assembly cavity 7 and the first assembly cavity 5, the coaxiality of the draft tube and the whole embedded part is ensured, the measurement and debugging of subsequent installation positions are reduced, the processing time is shortened, and the working efficiency is improved.

Further, the first assembling cavity 5 and the second assembling cavity 7 are fixedly provided with protective films on the surfaces, and the purpose is to ensure the complete fit of the draft tube and the draft tube after the draft tube is clamped.

Further, slide mechanism includes sliding block and slip chamber, the inside cavity of upper cover 2 is provided with the slip chamber, the inside slip of slip chamber is provided with the sliding block, the sliding block is close to the terminal surface and the connecting axle fixed connection of fixed plate 8, and its purpose plays spacing effect through the sliding block, avoids the stroke of upper cover 2 to exceed, ensures the stability in the device working process.

Further, 1 inside hydraulic system that is provided with of lower cover, hydraulic system is conventional hydraulic design, includes stock solution chamber, hydraulic pump and connecting pipe promptly, the play liquid end and the hydraulic pump input fixed connection in stock solution chamber, the output fixedly connected with connecting pipe of hydraulic pump, its effect is, sets up hydraulic system drive hydraulic telescoping shaft 6, ensures that the relative distance of upper cover 2 and lower cover 1 is adjustable and stable controllable, the flexibility of reinforcing device.

Furthermore, one end of each spring 4 is fixedly connected with the lower cover 1, and the other end of each spring is fixedly connected with the upper cover 2 in a contact or fixed mode, so that loss caused by vibration is reduced in the process of the device, and certain elastic compensation is provided.

The utility model discloses a theory of operation is: when the embedded part is embedded, firstly, the size of the embedded part is adjusted to be maximum, namely the hydraulic telescopic shaft 6 reaches the maximum stroke, and meanwhile, the sliding block in the upper cover 2 is positioned at the maximum distance of the stroke, namely the sliding block is farthest away from the end face, close to the fixed plate, of the upper cover 2, so that enough clamping space is ensured to be reserved for the subsequent installation of a draft tube;

when needs are installed the draft tube, at first, place the draft tube in first assembly chamber 5 in lower cover 1, then, the hydraulic system control hydraulic telescoping shaft 6 in lower cover 1 makes the motion of replying, drives upper cover 2 and presss from both sides tight draft tube, second assembly chamber 7 and first assembly chamber 5 laminate with the draft tube is perfect promptly, ensure the axiality of draft tube mounted position and device, at this moment, the sliding block in upper cover 2 is at the inside recovery normal position of sliding chamber, and simultaneously, a plurality of spring 4 is compressed.

The utility model has the advantages that: this device simple structure reduces required time and the human cost of measurement to draft tube mounted position, through setting up hydraulic system, ensures the relative distance's of upper cover 2 and lower cover 1 adjustable and stable controllable, strengthens the flexibility of device, in addition, sets up a plurality of spring 4 and is used for device buffering and absorbing purpose in the working process, avoids the device to become invalid because the vibration to influence the work efficiency of draft tube.

In the description of the present invention, it is to be understood that the terms "first", "second", and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified. Furthermore, the term "comprises" and any variations thereof is intended to cover non-exclusive inclusions.

The present invention has been described in terms of embodiments, and a number of variations and improvements can be made without departing from the present principles. It should be noted that all the technical solutions obtained by means of equivalent substitution or equivalent transformation fall within the protection scope of the present invention.

Claims

1. The utility model provides a tail water built-in fitting of power station which characterized in that: comprises a fixed plate (8), an upper cover (2), a lower cover (1), a hydraulic telescopic shaft (6) and a plurality of springs (4); upper cover (2) with lower cover (1) sets up relatively, just upper cover (2) are kept away from one side of lower cover (1) is provided with fixed plate (8), fixed plate (8) are close to the terminal surface of upper cover (2) is all fixed all around and is provided with the connecting axle, the one end that fixed plate (8) were kept away from to the connecting axle is passed the end wall fixedly connected with slide mechanism of upper cover (2), lower cover (1) is close to the left and right sides of the terminal surface of upper cover (2) is all fixed and is provided with a plurality of spring (4), hydraulic telescoping shaft (6) have all been cup jointed to a plurality of spring (4) inside, hydraulic telescoping shaft (6) one end and upper cover (2) fixed connection, the other end and lower cover (1) power connection.

2. The tailwater embedment of a hydroelectric power station of claim 1, wherein: slide mechanism includes sliding block and slip chamber, the inside cavity of upper cover (2) is provided with the slip chamber, the inside slip of slip chamber is provided with the sliding block, the sliding block is close to the terminal surface and the connecting axle fixed connection of fixed plate (8).

3. The tailwater embedment of a hydroelectric power station of claim 1, wherein: and a hydraulic system is arranged in the lower cover (1).

4. The tailwater embedment of a hydroelectric power station of claim 1, wherein: a first assembly cavity (5) is formed in the end face, opposite to the upper cover (2), of the lower cover (1); and a second assembling cavity (7) is formed in the opposite end surfaces of the upper cover (2) and the lower cover (1).

5. The tailwater embedment of a hydroelectric power station of claim 1, wherein: one end of each spring (4) is fixedly connected with the lower cover (1), and the other end of each spring is fixedly connected with the upper cover (2) in a contact or fixed mode.

6. The tailwater embedment of a hydroelectric power station as claimed in claim 4, wherein: the second assembling cavity (7) and the first assembling cavity (5) are mirror images with the same structure.