CN220366111U

CN220366111U - Drainage device for reducing instantaneous drainage pressure of drainage pipeline

Info

Publication number: CN220366111U
Application number: CN202321502547.2U
Authority: CN
Inventors: 潘文熙; 龙秒舟; 刘黎徐; 扶巨长; 潘登; 朱红艳
Original assignee: HUNAN TIANYU EQUIPMENT INSTALLATION CO Ltd
Current assignee: HUNAN TIANYU EQUIPMENT INSTALLATION CO Ltd
Priority date: 2023-06-13
Filing date: 2023-06-13
Publication date: 2024-01-19
Anticipated expiration: 2033-06-13

Abstract

The utility model discloses a drainage device for reducing the instantaneous drainage pressure of a drainage pipeline, which belongs to the technical field of drainage systems and comprises a water inlet pipe, a water outlet pipe, a drainage cavity and an energy dissipation pipe. The drainage cavity is arranged between the water inlet pipe and the water outlet pipe. The energy dissipation pipe is arranged in the drainage cavity, a plurality of through holes are formed in the side wall of the energy dissipation pipe, the water inlet pipe and the water outlet pipe are communicated through the through holes, and the energy dissipation pipe is detachably connected with the drainage cavity. When fluid flows into the water outlet pipe from the water inlet pipe, the drainage cavity guides the fluid to the energy dissipation pipe, the form of the fluid can be changed through the through holes on the energy dissipation pipe by changing the flow path of the fluid so as to absorb the energy of the water hammer, the effect of dispersing the energy of the fluid is achieved, and finally the aim of reducing the instantaneous drainage pressure in the pipeline is achieved. The energy dissipation pipe can be detached from the drainage cavity, and when the drainage device is blocked, the energy dissipation pipe can be taken out, so that the drainage device is convenient to clean.

Description

Drainage device for reducing instantaneous drainage pressure of drainage pipeline

Technical Field

The utility model belongs to the technical field of drainage systems, and particularly relates to a drainage device for reducing instantaneous drainage pressure of a drainage pipeline.

Background

In a drainage system, fluid creates a sudden increase in pressure wave inside the pipe due to inertia, which is known as a water hammer, which is a common problem in drainage systems. The factory may have the condition that a plurality of water using devices discharge fluid simultaneously, the water pressure in the pipeline increases rapidly at the beginning of the discharge, the water hammer can generate a larger instant drainage pressure in the pipeline, the damage of the pipeline and the connecting piece can be caused, and even the stability and the normal operation of the whole drainage system can be influenced.

The common method for solving the water hammer problem is to install an energy dissipation device in a drainage pipeline. The energy dissipater may mitigate the effects of the water hammer by absorbing, releasing or dispersing energy generated by the water hammer, thereby protecting the integrity of the drainage system. The conventional energy dissipation device breaks up the original flowing state of the fluid by arranging the blocking object, however, the blocking object often hinders the circulation of impurities in the fluid, and the inside of the device or the inside of a pipeline is easily blocked by the impurities for a long time, so that the drainage performance is influenced. And most of the energy dissipation devices are integrally formed, so that once the device or the pipeline is blocked, the device or the pipeline is difficult to clean.

Disclosure of Invention

The present utility model is directed to a drainage device for reducing the instantaneous drainage pressure of a drainage pipeline, so as to solve the above-mentioned problems in the prior art.

There is provided a drainage device for reducing an instantaneous drainage pressure of a drainage pipe, comprising:

a water inlet pipe;

a water outlet pipe;

the drainage cavity is arranged between the water inlet pipe and the water outlet pipe;

the energy dissipation pipe, the energy dissipation pipe sets up in the inside of drainage chamber, a plurality of through-holes have been seted up on the lateral wall of energy dissipation pipe, only through a plurality of through-holes intercommunication between water inlet pipe and the outlet pipe, be detachable connection between energy dissipation pipe and the drainage chamber.

Further, an annular cavity is formed between the drainage cavity and the energy dissipation pipe, and a plurality of through holes are formed in one side, far away from the water inlet pipe, of the energy dissipation pipe.

Further, the drainage cavity is connected with the energy dissipation pipe through a flange, and an elastic gasket is arranged between the drainage cavity and the energy dissipation pipe.

Further, one end of the energy dissipation pipe, which is close to the water outlet pipe, is provided with a flexible corrugated pipe, and the outer wall of the flexible corrugated pipe is attached to the inner wall of the water outlet pipe.

Compared with the prior art, the utility model has the beneficial effects that:

1. when fluid flows into the water outlet pipe from the water inlet pipe, the drainage cavity guides the fluid to the energy dissipation pipe, the form of the fluid can be changed through the through holes on the energy dissipation pipe by changing the flow path of the fluid so as to absorb the energy of the water hammer, the effect of dispersing the energy of the fluid is achieved, and finally the aim of reducing the instantaneous drainage pressure in the pipeline is achieved.

2. The energy dissipation pipe can be detached from the drainage cavity, and when the drainage device is blocked, the energy dissipation pipe can be taken out, so that the drainage device is convenient to clean.

Drawings

The present utility model is further described below with reference to the accompanying drawings for the convenience of understanding by those skilled in the art.

FIG. 1 is a schematic view of the overall structure of a drain device for reducing the instantaneous drain pressure of a drain pipe;

fig. 2 is a cross-sectional view of 1-1 of fig. 1.

In the figure: 1. a water inlet pipe; 2. a water outlet pipe; 3. a drainage cavity; 4. an energy dissipation tube; 41. a through hole; 42. a flexible bellows; 5. an elastic gasket.

Detailed Description

The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the particular embodiments described herein are illustrative only and are not intended to limit the utility model, i.e., the embodiments described are merely some, but not all, of the embodiments of the utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be made by a person skilled in the art without making any inventive effort, are intended to be within the scope of the present utility model.

Referring to fig. 1-2, in an embodiment of the present utility model, a drainage device for reducing an instantaneous drainage pressure of a drainage pipeline includes a water inlet pipe 1, a water outlet pipe 2, a drainage cavity 3, and an energy dissipation pipe 4. The drainage cavity 3 is arranged between the water inlet pipe 1 and the water outlet pipe 2. The energy dissipation pipe 4 is arranged in the drainage cavity 3, a plurality of through holes 41 are formed in the side wall of the energy dissipation pipe 4, the water inlet pipe 1 and the water outlet pipe 2 are communicated through the plurality of through holes 41, and the energy dissipation pipe 4 is detachably connected with the drainage cavity 3.

The flow path of the fluid is from the water inlet pipe 1 to the drainage cavity 3, the fluid is guided to the through hole 41 through the drainage cavity 3, enters the interior of the energy dissipation pipe 4 from the through hole 41, and finally the energy-dissipated fluid flows out from the water outlet pipe 2. The inner wall of the drainage cavity 3 is of an arc-shaped structure, and the drainage cavity 3 absorbs part of energy of fluid through impact action of the fluid on the inner wall of the drainage cavity. The fluid is ejected from the plurality of through holes 41, energy of the fluid is dispersed, and collision between the fluid and the inner wall of the energy dissipation tube 4 and collision between the fluid exist in the energy dissipation tube 4, and energy is dissipated through collision.

Referring to fig. 2, an annular cavity is formed between the drainage cavity 3 and the energy dissipation tube 4, and a plurality of through holes 41 are located at one side of the energy dissipation tube 4 away from the water inlet tube 1. The fluid is split after striking the energy dissipation tube 4, the fluid advances along the annular path of the annular cavity from one side of the drainage cavity 3, continuously impacts the inner walls of the drainage cavity 3 and the energy dissipation tube 4 to absorb part of energy, reaches the other side of the energy dissipation tube 4 and is ejected from the through hole 41. This structure increases the flow path of the fluid in the drainage chamber 3 and increases the interaction of the fluid with the drainage chamber 3 and the energy dissipation tube 4.

The drainage cavity 3 is connected with the energy dissipation pipe 4 through a flange, and an elastic gasket 5 is arranged between the drainage cavity 3 and the energy dissipation pipe 4. Since the drainage cavity 3 and the energy dissipation tube 4 absorb most of the energy of the fluid, the connection part of the drainage cavity 3 and the energy dissipation tube 4 bears extremely high water pressure. The drainage cavity 3 and the energy dissipation tube 4 are connected through the flange, so that the connection strength of the connection part is enhanced. However, the bolts on the flange are subjected to fluctuating instantaneous water pressure for a long time, so that metal is fatigued, gaps are formed between two flange sheets, and finally water leakage occurs. Therefore, the elastic gasket 5 is arranged between the two flange plates, so that a certain extension space is provided for the bolt, and fluid leakage from the connecting position is effectively prevented.

The water outlet pipe 2 is an arc pipe with a certain radian, and one end of the energy dissipation pipe 4, which is close to the water outlet pipe 2, is provided with a flexible corrugated pipe 42. The flexible bellows 42 can be arranged along the arc-shaped water outlet pipe 2, and the outer wall of the flexible bellows 42 is attached to the inner wall of the water outlet pipe 2. The flexible bellows 42 is a flexible tube having a smooth outer surface and a corrugated inner surface. The corrugated structure of the flexible bellows 42 absorbs these impact energies and reduces the impact forces on the outlet pipe 2. Its flexibility and compressibility allow it to effectively slow down the speed and magnitude of shock wave propagation. The corrugated structure of the flexible bellows 42 distributes the concentrated impact force on the pipe, thereby alleviating the problem of stress concentration in the pipe connection member.

The foregoing is merely illustrative of the structures of this utility model and various modifications, additions and substitutions for those skilled in the art can be made to the described embodiments without departing from the scope of the utility model or from the scope of the utility model as defined in the accompanying claims.

Claims

1. A drain for reducing instantaneous drain pressure in a drain line, comprising:

a water inlet pipe (1);

a water outlet pipe (2);

the drainage cavity (3) is arranged between the water inlet pipe (1) and the water outlet pipe (2);

the energy dissipation pipe (4), energy dissipation pipe (4) set up in the inside of drainage chamber (3), a plurality of through-holes (41) have been seted up on the lateral wall of energy dissipation pipe (4), only through a plurality of through-holes (41) intercommunication between water inlet pipe (1) and outlet pipe (2), be detachable connection between energy dissipation pipe (4) and drainage chamber (3).

2. A drainage device for reducing the instantaneous drainage pressure of a drainage pipeline according to claim 1, wherein an annular cavity is formed between the drainage cavity (3) and the energy dissipation tube (4), and a plurality of through holes (41) are formed in the side, away from the water inlet tube (1), of the energy dissipation tube (4).

3. The drainage device for reducing the instantaneous drainage pressure of the drainage pipeline according to claim 1, wherein the drainage cavity (3) is connected with the energy dissipation pipe (4) through a flange, and an elastic gasket (5) is arranged between the drainage cavity (3) and the energy dissipation pipe (4).

4. The drainage device for reducing instant drainage pressure of a drainage pipeline according to claim 1, wherein a flexible corrugated pipe (42) is arranged at one end of the energy dissipation pipe (4) close to the water outlet pipe (2), and the outer wall of the flexible corrugated pipe (42) is attached to the inner wall of the water outlet pipe (2).