CN218151226U

CN218151226U - L-shaped perfusion type drainage structure

Info

Publication number: CN218151226U
Application number: CN202222408560.3U
Authority: CN
Inventors: 蓝若灵
Original assignee: Chengdu Foster Technology Co ltd
Current assignee: Chengdu Foster Technology Co ltd
Priority date: 2022-09-07
Filing date: 2022-09-07
Publication date: 2022-12-27
Anticipated expiration: 2032-09-07

Abstract

The utility model relates to the technical field of drainage structures, in particular to an L-shaped perfusion type drainage structure, which comprises a shell and a rotating wheel coaxially arranged in the shell, wherein the shell is connected with a water inlet pipe and a water outlet pipe; the drain pipe includes that inner tube and cover establish the outer tube outside the inner tube, the outer tube top can be dismantled with the inner tube top and be connected the back with the shell is connected, and multistage pipeline reduces the flow speed of water, reduces the corruption that cavitation phenomenon brought, can dismantle interior outer tube, and the protection outer tube is convenient for change the inner tube.

Description

L-shaped perfusion type drainage structure

Technical Field

The utility model relates to a drainage technical field especially relates to a L type perfusion drainage structures.

Background

The statements in this section merely provide background information related to the present disclosure and may not constitute prior art.

The cavitation erosion of water turbine during water drainage is caused by the cavitation erosion of fluid on the metal surface contacting with the fluid under the conditions of high speed flow and pressure change. However, in the prior art, the problem of cavitation is not effectively solved, and it is worth noting that cavitation of the water turbine mostly occurs in a drainage link.

The utility model discloses a chinese utility model patent that has a publication number CN216339881U as a building engineering's drainage economizer, it discloses including the drain pipe, the drain pipe is vertical setting, the upper portion in the drain pipe is rotated and is installed the hydraulic turbine, the output shaft of the hydraulic turbine wears out the water piping connection and is fixed with first sprocket, and the lower part in the drain pipe installs the filter screen, rotate on the filter screen and install the doctor-bar, the middle part connection of doctor-bar is fixed with the bull stick, the top of bull stick is inserted and is established the middle part of fixing at second bevel gear, second bevel gear and first bevel gear meshing, and the middle part of first bevel gear is inserted and is established and install the actuating lever, the one end connection that the drain pipe was worn out to the actuating lever is fixed with the second sprocket, and connect through the chain drive between first sprocket and the second sprocket, although the aforesaid provides one kind and need not extra power, relatively compare the drainage structure of economizing on energy, but the influence that the cavitation brought is not solved.

SUMMERY OF THE UTILITY MODEL

The inventor finds out through research that: the water discharge position of the water turbine often generates cavitation due to a large amount of fast flowing liquid, and the existing scheme does not provide a reasonable solution and only relieves the cavitation through regular maintenance.

The purpose of the present disclosure is to provide an L-shaped perfusion type drainage structure, which solves the technical problem that in the prior art, when a water turbine drains water, cavitation inside a pipeline is easy to generate by arranging a plurality of pipelines; meanwhile, the problems of high cost and labor consumption for replacing the water outlet pipe and high replacement and maintenance cost in the prior art are solved.

According to one aspect of the disclosure, an L-shaped perfusion type drainage structure is provided, which includes a housing and a rotating wheel coaxially disposed in the housing, the housing is connected to a water inlet pipe and a water outlet pipe, the water outlet pipe is coaxially disposed with the rotating wheel, the water inlet pipe is perpendicular to the water outlet pipe, and a water outlet end of the water inlet pipe is disposed opposite to the rotating wheel; the drain pipe includes that inner tube and cover establish the outer tube outside the inner tube, the outer tube top can be dismantled with the inner tube top and be connected the back with the shell is connected.

In some embodiments of the present disclosure, the inner tube is provided with a plurality of water holes.

In some embodiments of the present disclosure, the thickness of the outer tube is greater than or equal to the thickness of the inner tube.

In some embodiments of the present disclosure, a plurality of inclined flow deflectors are connected to the inner tube, and pressure reducing holes are formed in the flow deflectors.

In some embodiments of the present disclosure, the rotating wheel has a plurality of blades that are uniformly and obliquely arranged at intervals, and the plurality of deflectors are arranged along the radial direction of the inner pipe and the intervals are greater than or equal to the intervals between the blades.

In some embodiments of the present disclosure, one end of the water outlet pipe, which is far away from the rotating wheel, is connected with a water outlet pipe, the water outlet pipe is vertically connected with the water outlet pipe, a water outlet cavity is formed between the inner pipe and the outer pipe, and the water outlet cavity is communicated with the water outlet pipe.

In some embodiments of the present disclosure, the outer tube includes a first tube and a second tube sleeved outside the first tube, a distance between the first tube and the second tube is smaller than a distance between the first tube and the inner tube, and the water outlet cavity is formed between the first tube and the inner tube.

In some embodiments of the present disclosure, a fixing rib is connected between the first pipe and the second pipe.

In some embodiments of the present disclosure, annular grooves are formed in both the top of the first pipe and the top of the inner pipe, and a mounting ring is arranged in each of the two annular grooves.

In some embodiments of the present disclosure, the mounting ring has a U-shaped cross section, and the mounting ring is connected to the first pipe and the inner pipe by bolts.

Compared with the prior art, the method has the following advantages and beneficial effects:

1. the multistage pipeline reduces the flowing speed of water, reduces corrosion caused by cavitation, can disassemble the inner pipe and the outer pipe, protects the outer pipe and is convenient to replace the inner pipe;

2. arranging water passing holes, corroding water to flow through the holes, and reducing the water pressure of the water;

3. the water flows into the inner pipe and is not coaxial, and the arrangement realizes drainage and further reduces cavitation;

4. the guide plates are arranged along the radial direction of the inner pipe, and the distance between the guide plates is larger than or equal to the distance between the blades, so that water coming out from each blade can be guided to flow in the set direction, and bubble aggravation cavitation caused by mutual impact of water flows between different blades is avoided.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

fig. 2 is a schematic view of the connection between the outer appearance and the inner tube according to the present invention.

Illustration of the drawings:

1-a housing; 2-rotating wheel; 3-water inlet pipe; 4-water outlet pipe; 5, a drain pipe; 6-inner tube; 7-a flow guide plate; 8-water outlet cavity; 9-a first tube; 10-a second tube; 11-a fixation rib; 12-a mounting ring; 13-bolt.

Detailed Description

Referring to fig. 1-2 together, the present embodiment provides an L-shaped perfusion drainage structure, which is already in practical use.

In the following paragraphs, different aspects of the embodiments are defined in more detail. Aspects so defined may be combined with any other aspect or aspects unless clearly indicated to the contrary. In particular, any feature considered to be preferred or advantageous may be combined with one or more other features considered to be preferred or advantageous. The terms "first", "second", and the like in the present invention are used for convenience of description only to distinguish different constituent elements having the same name, and do not indicate a sequential or primary-secondary relationship.

Example 1

The present embodiment at least includes the following contents: an L-shaped perfusion type drainage structure comprises a shell 1 and a rotating wheel 2 coaxially arranged in the shell 1, wherein the shell 1 is connected with a water inlet pipe 3 and a water outlet pipe 4, a water outlet pipe 5 is coaxially arranged with the rotating wheel 2, the water inlet pipe 3 is vertically arranged with the water outlet pipe 4, and the water outlet end of the water inlet pipe 3 is opposite to the rotating wheel 2; the drain pipe 5 includes that inner tube 6 and cover establish the outer tube outside inner tube 6, and the outer tube top can be dismantled with the 6 tops of inner tube and be connected the back and shell 1, has seted up a plurality of water holes of crossing on the inner tube 6, loses water through the hole and flows, reduces the water pressure of water, and what need explain simultaneously, the multistage pipeline reduces the flow speed of water, reduces the corruption that the cavitation phenomenon brought, can dismantle interior outer tube, the protection outer tube, the change inner tube 6 of being convenient for.

Example 2

This example only describes the differences from example 1: the thickness of the outer tube is greater than or equal to the thickness of the inner tube 6, the inner tube 6 is consumable, the material can be used cheaply, and the outer tube is mainly protected from being damaged. The guide plate 7 of a plurality of slopes is connected to inner tube 6 in, has seted up the pressure-relief vent on the guide plate 7, and rivers are not coaxial when advancing inner tube 6, and this setting realizes the drainage, further reduces the cavitation. One end of the water outlet pipe 4, which is far away from the rotating wheel 2, is connected with a water outlet pipe 5, the water outlet pipe 5 is vertically connected with the water outlet pipe 4, a water outlet cavity 8 is formed between the inner pipe 6 and the outer pipe, the water outlet cavity 8 is communicated with the water outlet pipe 5, and the water outlet cavity 8 is used for better water drainage.

Example 3

This example only describes the differences from example 1: the runner 2 is provided with a plurality of blades which are uniformly arranged at intervals and are obliquely arranged, a plurality of guide plates 7 are arranged along the radial direction of the inner pipe 6, the distance between the guide plates is larger than or equal to the distance between the blades, so that water coming out from each blade can be guided to flow in the set direction, and the phenomenon that water flow between different blades impacts each other to generate bubbles to intensify cavitation is avoided.

Example 4

This example only describes the differences from example 1: the outer tube comprises a first tube 9 and a second tube 10 sleeved outside the first tube 9, the distance between the first tube 9 and the second tube 10 is smaller than the distance between the first tube 9 and the inner tube 6, a water outlet cavity 8 is formed between the first tube 9 and the inner tube 6, the outer tube of the existing mechanism is double-layer, and the distance is small for mounting the rotating wheel 2.

Example 5

This example only describes the differences from example 1: a fixing rib 11 is connected between the first tube 9 and the second tube 10.

Example 6

This example only describes the differences from example 1: annular grooves are formed in the top of the first pipe 9 and the top of the inner pipe 6, an installation ring 12 is arranged in each annular groove, a connection mode of the inner pipe 6 and the first pipe 9 is provided, and the inner pipe can be detached and is convenient to replace.

Example 7

This example only describes the differences from example 6: the mounting ring 12 is U-shaped in cross section, and the mounting ring 12 is connected with the first pipe 9 and the inner pipe 6 through bolts 13.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not intended to limit the present invention, and any modifications, equivalents, improvements, etc. made within the spirit and principles of the present invention should be included within the scope of the present invention.

Claims

1. An L-shaped perfusion type drainage structure is characterized by comprising a shell (1) and a rotating wheel (2) coaxially arranged in the shell (1), wherein the shell (1) is connected with a water inlet pipe (3) and a water outlet pipe (4), the rotating wheel (2) and a water outlet pipe (5) are coaxially arranged, the water inlet pipe (3) and the water outlet pipe (4) are vertically arranged, and the water outlet end of the water inlet pipe (3) is opposite to the rotating wheel (2); the drain pipe (5) comprises an inner pipe (6) and an outer pipe sleeved outside the inner pipe (6), and the top end of the outer pipe is detachably connected with the top end of the inner pipe (6) and then connected with the shell (1).

2. An L-shaped perfusion type drainage structure according to claim 1, wherein the inner tube (6) is provided with a plurality of water through holes.

3. An L-type perfusion drainage structure according to claim 2, wherein the thickness of the outer tube is greater than or equal to the thickness of the inner tube (6).

4. An L-shaped perfusion type drainage structure according to claim 2, wherein a plurality of inclined guide plates (7) are connected in the inner tube (6), and the guide plates (7) are provided with pressure reducing holes.

5. An L-shaped perfusion type drainage structure according to claim 4, wherein the rotating wheel (2) is provided with a plurality of uniformly spaced and obliquely arranged blades, and the baffles (7) are arranged along the radial direction of the inner tube (6) and have a distance greater than or equal to the distance between the blades.

6. An L-shaped perfusion type drainage structure according to claim 2, wherein one end of the water outlet pipe (4) far away from the rotating wheel (2) is connected with a drainage pipe (5), the drainage pipe (5) is vertically connected with the water outlet pipe (4), a water outlet cavity (8) is formed between the inner pipe (6) and the outer pipe, and the water outlet cavity (8) is communicated with the drainage pipe (5).

7. An L-shaped perfusion drainage structure according to claim 6, wherein the outer tube comprises a first tube (9) and a second tube (10) sleeved outside the first tube (9), the distance between the first tube (9) and the second tube (10) is smaller than the distance between the first tube (9) and the inner tube (6), and the water outlet cavity (8) is formed between the first tube (9) and the inner tube (6).

8. An L-shaped perfusion drainage structure according to claim 7, wherein a fixing rib (11) is connected between the first tube (9) and the second tube (10).

9. An L-shaped perfusion type drainage structure according to any one of claims 7-8, wherein annular grooves are formed in the top of the first pipe (9) and the top of the inner pipe (6), and a mounting ring (12) is arranged in each annular groove.

10. An L-shaped perfusion drainage structure according to claim 9, wherein the mounting ring (12) is U-shaped in cross-section, and the mounting ring (12) is connected with the first tube (9) and the inner tube (6) through bolts (13).