CN214366511U

CN214366511U - Sealed leakage drainage device for expansion joint of through-flow turbine

Info

Publication number: CN214366511U
Application number: CN202023030545.7U
Authority: CN
Inventors: 唐志宽; 李�昊; 么淑玲; 张连勇
Original assignee: Tianjin Tianfa Heavy Hydropower Equipment Manufacturing Co Ltd
Current assignee: Tianjin Tianfa Heavy Hydropower Equipment Manufacturing Co Ltd
Priority date: 2020-12-16
Filing date: 2020-12-16
Publication date: 2021-10-08
Anticipated expiration: 2030-12-16

Abstract

The utility model relates to a hydraulic turbine technical field especially relates to a sealed seepage hydrophobic means of tubular turbine telescopic joint, including runner room, basic ring and telescopic joint, the lower extreme at basic ring is installed to the telescopic joint, be formed with the triangle-shaped slot between basic ring and the telescopic joint, the runner room sets up one side at the basic ring, mutual fixed connection between runner room and the basic ring, the hydrophobic groove has been seted up respectively to the axial and the radial direction at the triangle-shaped slot lower position both ends of telescopic joint, one hydrophobic hole has respectively been seted up to terminal vertical direction in hydrophobic groove, one side of telescopic joint is provided with the rectangular pagoda elbow, connect soon through the screw thread between the one end of rectangular pagoda elbow and the telescopic joint, install flexible rubber hose at the other end of rectangular pagoda elbow. Compared with the prior art, the utility model discloses the structure is very simple, only needs a stainless steel right angle pagoda elbow, economizes the material and saves time and economize the cost, and the installation is overhauld very conveniently, has very good practical function.

Description

Sealed leakage drainage device for expansion joint of through-flow turbine

Technical Field

The utility model relates to a hydraulic turbine technical field especially relates to a sealed seepage hydrophobic means of tubular turbine telescopic joint.

Background

At present, under the condition of multiple optimization and improvement of a sealing form at a telescopic joint of a through-flow turbine, the condition that water in a runner flows to leak in a factory outside the runner still occurs, the existing telescopic joint sealing and water seepage solution adopts an open large-area water collecting device form, the technical scheme is that three sections of channel steel and a piece of thin steel plate are welded around the periphery of the lower half circle of the telescopic joint to form a water collecting tank shape, the water collecting tank is combined with a flange which is welded on the lower half circle of a foundation ring on site by using enough bolts, and the water leakage is drained to a drainage pipeline system of a power station by opening a drainage hole at the bottom of the water collecting tank and connecting a rubber hose (as shown in figures 4 and 5 in the specification).

This current device exists that the consumptive material volume is big, and the problem that the welding volume is many need spout the anti-rust paint moreover, and the installation scope span is big, and later stage dismouting is overhauld very inconveniently.

Therefore, a need exists for a leak-tight drain seal for a turbine expansion joint that addresses the above-mentioned problems.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a solve the corona problem that the high tension generator who exists among the present prior art scheme exists, the utility model provides a sealed seepage hydrophobic means of tubular turbine telescopic joint compares with current device, the utility model discloses the structure is very simple, only needs a stainless steel right angle pagoda elbow, economizes the material and saves time and economize the cost, and the installation and maintenance is very convenient, has very good practical function.

The utility model discloses a solve the technical scheme that above-mentioned technical problem adopted and be: the utility model provides a sealed seepage drainage device of tubular turbine telescopic joint, includes runner chamber, foundation ring and telescopic joint, the telescopic joint is installed on the outside circle of foundation ring, be formed with the triangle-shaped slot between foundation ring and the telescopic joint, the runner chamber sets up one side of foundation ring, mutual sliding connection between runner chamber and the foundation ring, hydrophobic groove has been seted up respectively to the axial and the radial direction of the triangle-shaped slot lower position both sides of telescopic joint, has respectively seted up one hydrophobic hole in the terminal vertical direction of hydrophobic groove, one side of telescopic joint is provided with the right angle pagoda elbow, the one end of right angle pagoda elbow with connect soon through the screw thread between the telescopic joint, install rubber hose at the other end of right angle pagoda elbow, through the larynx hoop reciprocal fastening between rubber hose and the right angle pagoda elbow.

Furthermore, the runner chamber is positioned on one side of the telescopic joint, and the runner chamber and the telescopic joint are combined through a bolt.

Furthermore, the lower part of the telescopic joint is provided with a pipe threaded hole, one end of the pipe threaded hole is communicated with the drain holes which are axially and radially arranged, and the other end of the pipe threaded hole is connected with the right-angle pagoda elbow through threads.

Furthermore, a groove is formed in the telescopic joint, and a dustproof ring is sleeved in the groove.

Further, the depth of the hydrophobic groove is 1mm, and the width is 6 mm.

Furthermore, a sealing strip is sleeved in the triangular groove.

The utility model has the advantages that: the utility model provides a sealed seepage drainage device of tubular turbine telescopic joint, including runner room, foundation ring and telescopic joint, the telescopic joint is installed on the outside circle of foundation ring, is formed with the triangle-shaped slot between foundation ring and the telescopic joint, and hydrophobic groove has been seted up respectively to the axial and the radial direction of the triangle-shaped slot below position both sides of telescopic joint, has respectively seted up one hydrophobic hole at the terminal vertical direction of hydrophobic groove, and one side of telescopic joint is provided with right angle pagoda elbow, installs flexible rubber hose at the other end of right angle pagoda elbow, compares with current device, the utility model discloses the structure is very simple, only needs a stainless steel right angle pagoda elbow, saves material and saves time and economize the cost, and the installation and overhaul is very convenient, has very good practical effect.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic view of the installation structure of the present invention.

Fig. 2 is a schematic view of the middle telescopic joint structure of the present invention.

Fig. 3 is a schematic sectional view of the middle telescopic joint structure of the present invention.

Fig. 4 is a schematic structural diagram of a leakage water collecting and draining device sealed by an expansion joint in the prior device.

Fig. 5 is a schematic axial view of a leakage water collecting and draining device with a sealing expansion joint in a prior device.

Wherein:

1. a foundation ring; 2. An expansion joint; 3. A runner chamber;

4. a sealing strip; 5. A dust ring; 6. A right angle pagoda elbow;

7. a hose clamp; 8. A rubber hose; 11. A triangular groove;

12. a drainage tank; 13. A hydrophobic pore; 14. A tube threaded hole;

15. existing arrangements

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that unless otherwise explicitly specified or limited, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example 1:

FIG. 1 is a schematic view of the installation structure of the present invention, FIG. 2 is a partial schematic view of the expansion joint structure of the present invention, FIG. 3 is a schematic view of the section of the expansion joint structure of the present invention, and FIGS. 1, 2 and 3 show a cross-flow turbine expansion joint sealing leakage drainage device, which comprises a runner chamber 3, a foundation ring 1 and an expansion joint 2, wherein the expansion joint 2 is installed on the outer circle of the foundation ring 1, a triangular groove 11 is formed between the foundation ring 1 and the expansion joint 2, the runner chamber 3 is disposed on one side of the foundation ring 1, the runner chamber 3 and the foundation ring 1 are slidably connected with each other, a drainage groove 12 is respectively disposed in the axial direction and the radial direction of the two sides below the triangular groove 11 of the expansion joint 2, a drainage hole 13 is respectively disposed in the vertical direction of the end of the drainage groove 12, a rectangular pagoda elbow 6 is disposed on one side of the expansion joint 2, one end of a right-angle pagoda elbow 6 is screwed with the expansion joint 2 through threads, a rubber hose 8 is installed at the other end of the right-angle pagoda elbow 6, the rubber hose 8 and the right-angle pagoda elbow 6 are fastened with each other through a hose clamp 7, the runner chamber 3 is located on one side of the expansion joint 2, the runner chamber 3 is connected with the expansion joint 2 through bolts, a pipe thread hole 14 is formed in the expansion joint 2, one end of the pipe thread hole 14 is communicated with a drain hole 13 which is axially and radially arranged, the other end of the pipe thread hole 14 is connected with the right-angle pagoda elbow 6 through threads, a groove is formed in the expansion joint 2, a dust ring 5 is sleeved in the groove, the depth of the drain groove 12 is 1mm, the width is 6mm, and a sealing strip 4 is sleeved in the triangular groove 11.

The working principle is as follows: the utility model discloses can concentrate the rivers that leak from the 2 sealing strips of telescopic joint 4 department of sealing strip and dredge to a drainage point of the 2 inboards of telescopic joint, arrange the drainage pipe system to the power station through the hydrophobic hole 13 on the telescopic joint 2. The specific scheme is as follows: two sides of the lowest position of a triangular groove 11 of the telescopic joint 2 are respectively provided with a drainage groove 12 with the depth of 1mm and the width of 6mm in the axial direction and the radial direction, a drainage hole 13 is respectively drilled in the vertical direction of the tail end of the drainage groove 12, the axial drainage hole 13 penetrates through the telescopic joint 2 to the end face of the downstream side of the telescopic joint 2 and is matched with an internal thread hole on the end face of the end face according to an external thread of a stainless steel right-angle pagoda elbow 6 (one end is provided with an external thread and the other end is provided with a bamboo joint shape), one end (the external thread can be wound with a raw material belt) of the pagoda elbow 6 is screwed into a pipe thread hole 14 at the lowest position of the telescopic joint 2, the rubber hose 8 is sleeved on the other end (the bamboo joint shape) of the pagoda elbow and is fastened by the hose 7, and the rubber hose 8 is connected to a drainage pipe system self-provided by a power station.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims

1. The utility model provides a sealed seepage drainage device of tubular turbine telescopic joint, includes runner room (3), foundation ring (1) and telescopic joint (2), its characterized in that: the telescopic joint (2) is arranged on the outer circle of the foundation ring (1), a triangular groove (11) is formed between the foundation ring (1) and the telescopic joint (2), the runner chamber (3) is arranged on one side of the base ring (1), the runner chamber (3) and the base ring (1) are mutually connected in a sliding way, the axial direction and the radial direction of two sides of the lower position of the triangular groove (11) of the telescopic joint (2) are respectively provided with a drainage groove (12), a drainage hole (13) is respectively arranged at the vertical direction of the tail end of the drainage groove (12), a right-angle pagoda elbow (6) is arranged on one side of the telescopic joint (2), one end of the right-angle pagoda elbow (6) is screwed with the telescopic joint (2) through threads, the other end of the right-angle pagoda elbow (6) is provided with a rubber hose (8), and the rubber hose (8) and the right-angle pagoda elbow (6) are mutually fastened through a hose clamp (7).

2. The flow turbine expansion joint sealing leakage drain device of claim 1, wherein: the runner chamber (3) is positioned on one side of the telescopic joint (2), and the runner chamber (3) and the telescopic joint (2) are combined through a bolt.

3. The flow turbine expansion joint sealing leakage drain device of claim 2, wherein: the lower part of the telescopic joint (2) is provided with a pipe threaded hole (14), one end of the pipe threaded hole (14) is communicated with a drain hole (13) which is axially and radially arranged, and the other end of the pipe threaded hole (14) is connected with the right-angle pagoda elbow (6) through threads.

4. The flow turbine expansion joint sealing leakage drain device of claim 1, wherein: the telescopic joint (2) is provided with a groove, and a dustproof ring (5) is sleeved in the groove.

5. The flow turbine expansion joint sealing leakage drain device of claim 1, wherein: the depth of the water drainage groove (12) is 1mm, and the width of the water drainage groove is 6 mm.

6. The flow turbine expansion joint sealing leakage drain device of claim 1, wherein: and a sealing strip (4) is sleeved in the triangular groove (11).