CN219063109U

CN219063109U - Intermediate pressurizing device for long-distance drainage

Info

Publication number: CN219063109U
Application number: CN202023273974.7U
Authority: CN
Inventors: 黄锐华
Original assignee: Yichang Yingyan Mining Co ltd
Current assignee: Yichang Yingyan Mining Co ltd
Priority date: 2020-12-30
Filing date: 2020-12-30
Publication date: 2023-05-23
Anticipated expiration: 2030-12-30

Abstract

The utility model discloses a middle pressurizing device for long-distance drainage, which comprises a first cylinder, a buffer bin and a spring, wherein the buffer bin is arranged above the first cylinder, the spring is arranged below an upper cover, a transverse plate is arranged in the buffer bin in a sliding manner, the side wall of the transverse plate is tightly attached to the buffer bin, an exhaust hole is formed in the side wall of the buffer bin, the second cylinder is communicated with the inside of an air inlet pipeline, a through hole is formed in the inner wall of the second cylinder, a sealing cover is arranged in the inner side of the through hole, the pressure in the first cylinder is increased, the transverse plate moves upwards along with the increase of the pressure, the pipeline is decompressed through an exhaust port, so that the excessive pressure in the pipeline is avoided, the pressure in the second cylinder is reduced, the sealing cover is opened inwards, and external air enters the first cylinder, so that the pressure supplement to the pipeline is realized, the excessive pressure or the excessive pressure in the pipeline is avoided, the pipeline is protected, and the long-distance water conveying effect is ensured.

Description

Intermediate pressurizing device for long-distance drainage

Technical Field

The utility model relates to a pressurizing device, in particular to a long-distance drainage middle pressurizing device.

Background

Along with the rapid development of social economy in China, the contradiction between water resource supply and demand is increasingly prominent. In order to solve the contradiction between supply and demand of water resources and promote the reasonable application of water resource optimization, in recent years, water supply projects for long-distance water delivery through a booster pump are more and more in cross-river basin and cross-region water supply projects. In long-distance water delivery engineering, as the water delivery distance is longer and the topography fluctuation is larger, water in the water delivery pipeline changes in multiple flow states due to gas, and the water flow in the water delivery pipeline changes rapidly when the pump is started, stopped or the valve is opened and closed, so that the pressure in the water delivery pipeline rises or falls suddenly and severely, and then a water hammer is formed. The water hammer is an important factor affecting the safety of long-distance pipeline water delivery engineering, such as transient positive pressure generated by the water hammer, which is easy to cause accidents such as pipeline rupture, equipment damage, water delivery interruption and the like; the pipeline can be shrunken when the transient negative pressure generated by the water hammer is too large, so that the flow area of the pipeline is reduced, the water supply flow is reduced, and the water supply energy consumption is increased.

Therefore, improvements to existing pressurization devices are needed to eliminate the water hammer and reduce or avoid damage to the pipeline caused by the water hammer. The pipeline can be well protected, and the long-distance water delivery effect is ensured.

Disclosure of Invention

The present utility model is directed to a long-distance drainage intermediate pressurizing device, which solves the above-mentioned problems in the prior art.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a with pressure device in middle of long distance drainage, includes preceding branch pipeline, one side of preceding branch pipeline is provided with the back branch pipeline, be provided with the water pump between back branch pipeline and the preceding branch pipeline, the one end fixed connection of main pipeline behind the end of gathering of back branch pipeline, be provided with pressure buffer on the back main pipeline, pressure buffer includes first barrel and air inlet line, the top of first barrel is provided with the buffering bin, the top swing joint of buffering bin has the upper cover, the below of upper cover is provided with the spring, the top fixed mounting of spring is on the upper cover, the top of diaphragm is installed to the bottom fixed mounting of spring, the diaphragm slides and sets up in the buffering bin, the lateral wall and the inseparable laminating of buffering bin of diaphragm, the exhaust hole has been seted up on the lateral wall of buffering bin, be used for the air inlet with the one end fixed connection of air inlet line on the lateral wall of first barrel, the other end fixed connection of air inlet line has the second barrel, the inside intercommunication of second barrel and air inlet line, the inner side intercommunication has been seted up to the through-hole on the inner wall of second barrel.

As a further scheme of the utility model: the free end fixedly connected with flange of preceding branch pipeline, the equal fixedly connected with pipeline of inlet outlet of water pump, the equal fixedly connected with flange of pipeline tip on the water pump.

As still further aspects of the utility model: the front branch pipelines are provided with a plurality of branch pipelines according to the requirement, and the branch pipelines of the front branch pipelines and the rear branch pipelines are equal in number.

As still further aspects of the utility model: the springs are symmetrically arranged in a plurality.

As still further aspects of the utility model: the sealing cover is hinged with the inner wall of the second cylinder body, and a sealing ring is arranged on one side, which is attached to the inner wall of the second cylinder body, of the sealing cover.

As still further aspects of the utility model: the side wall of the buffer bin is provided with exhaust holes at the position close to the upper cover and the position close to the transverse plate.

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

1. according to the utility model, by arranging the pressure buffer device, when the pressure in the front main pipeline and the rear main pipeline is increased, the pressure in the first cylinder is increased, the transverse plate moves upwards along with the increase of the pressure, and then the pipelines are decompressed through the exhaust port, so that the excessive pressure in the pipelines is avoided;

2. according to the utility model, the second cylinder is arranged, when the pressure in the pipe body is reduced, the pressure in the second cylinder is reduced, the sealing cover is opened inwards, and external air enters the first cylinder, so that the pressure of the pipeline is supplemented, the excessive high or low pressure in the pipeline is avoided, the water hammer is eliminated, the damage of the water hammer to the pipeline is reduced or avoided, the pipeline is protected, and the long-distance water delivery effect is ensured;

3. according to the utility model, the upper cover is arranged, when the first cylinder body is required to be overhauled, the handle is pulled, and the upper cover is lifted, so that the maintenance and overhaul of staff are facilitated.

Drawings

Fig. 1 is a schematic view of a structure of an intermediate pressurizing device for long-distance drainage.

Fig. 2 is a schematic structural view of a pressure buffer device in the intermediate pressurizing device for long-distance drainage.

Fig. 3 is a schematic view of the structure of the portion a of the pressure buffer device in the intermediate pressurizing device for long-distance drainage.

The figure shows: front main pipeline 1, front branch pipeline 2, flange 3, water pump 4, back branch pipeline 5, back main pipeline 6, pressure buffer 7, first barrel 8, diaphragm 9, exhaust hole 10, upper cover 11, spring 12, handle 13, buffer bin 14, air inlet pipeline 15, through-hole 16, second barrel 17 and sealed lid 18.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-3, in the embodiment of the utility model, a long-distance drainage middle pressurizing device comprises a front main pipeline 1, a front branch pipeline 2, a connecting flange 3, a water pump 4, a rear branch pipeline 5, a rear main pipeline 6, a pressure buffer device 7, a first cylinder 8, a cross plate 9, an exhaust hole 10, an upper cover 11, a spring 12, a handle 13, a buffer chamber 14, an air inlet pipeline 15, a through hole 16, a second cylinder 17 and a sealing cover 18, wherein one side of the front branch pipeline 2 is provided with the rear branch pipeline 5, the water pump 4 is arranged between the rear branch pipeline 5 and the front branch pipeline 2, the gathering end of the rear branch pipeline 5 is fixedly connected with one end of the rear main pipeline 6, the rear main pipeline 6 is provided with the pressure buffer device 7, the pressure buffer device 7 comprises the first cylinder 8 and the air inlet pipeline 15, the top of the first cylinder 8 is in an opening design, the buffer chamber 14 is arranged above the first cylinder 8, the top of the buffer bin 14 is movably connected with an upper cover 11, a handle 13 is fixedly arranged at the top of the upper cover 11, a spring 12 is arranged below the upper cover 11, the top end of the spring 12 is fixedly arranged on the upper cover 11, the bottom end of the spring 12 is fixedly provided with the top of a transverse plate 9, the transverse plate 9 is slidably arranged in the buffer bin 14, the side wall of the transverse plate 9 is tightly attached to the buffer bin 14, an exhaust hole 10 is formed in the side wall of the buffer bin 14, an air inlet fixedly connected with one end of an air inlet pipeline 15 is formed in the side wall of a first barrel 8, a second barrel 17 is fixedly connected with the other end of the air inlet pipeline 15, the second barrel 17 is communicated with the inside of the air inlet pipeline 15, the top of the second barrel 17 is in a sealing arrangement, a through hole 16 is formed in the inner wall of the second barrel 17, the inside of through-hole 16 is provided with sealed lid 18, the free end fixedly connected with flange 3 of preceding pipeline 2, the equal fixedly connected with pipeline of inlet outlet of water pump 4, the equal fixedly connected with flange 3 of pipeline tip on the water pump 4, preceding pipeline 2 is provided with a plurality of as required, the branch pipe number of preceding pipeline 2 and back pipeline 5 is equal, spring 12 symmetry is provided with a plurality of, sealed lid 18 is articulated with the inner wall of second barrel 17, sealed lid 18 is provided with the sealing washer with the one side of the inner wall laminating of second barrel 17, exhaust hole 10 has all been seted up to the position department that is close to upper cover 11 and the position department that is close to diaphragm 9 on the lateral wall of buffer bin 14.

The working principle of the utility model is as follows: when the pressurizing device in the middle of the long-distance drainage is used, the water pump 4 is fixedly connected between the front branch pipeline 2 and the rear branch pipeline 5 through the connecting flange 3, the water pump 4 is started, the pressure is increased for the pipeline after the front branch pipeline 1 is shunted, thereby the purpose of long-distance conveying is achieved, when the pressure in the pipeline changes due to the fact that the water pump 4 and the valve are opened and closed, a water hammer can be generated at the moment, when the pressure in the pipeline increases, the pressure in the first cylinder 8 also increases, at the moment, the diaphragm 9 moves upwards due to the extrusion action of air, the spring 12 on the top of the diaphragm 9 is extruded, when the diaphragm 9 moves to the position above the exhaust hole 10 close to the diaphragm 9, high-pressure gas in the pipeline is discharged from the exhaust hole 10, when the pressure in the pipeline decreases, the spring 12 rebounds to drive the diaphragm 9 to move downwards, when the pressure in the pipeline is too small, the pressure in the pipeline decreases, and simultaneously, the pressure in the second cylinder 17 decreases, the sealing cover 18 rotates inwards due to the pressure action to the pressure to rotate inwards, the pressure in the air inlet pipeline is opened, the purpose of the water hammer is avoided to enter the air inlet chamber is guaranteed, the water is guaranteed to be in a buffer chamber 11, the water is avoided, the air intake is convenient to be taken, the air is guaranteed, the air is taken to be taken, the air is convenient to be taken, the position is kept in the position is a buffer, and the air is kept, and the air is convenient to be taken, and is convenient to be a pressure and is used for and is a pressure and is kept, and is used for and is convenient.

Although the present utility model has been described with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements and changes may be made without departing from the spirit and principles of the present utility model.

Claims

1. The utility model provides a with middle pressure device of long distance drainage, includes preceding main line (1) and preceding main line (1) fixed connection's preceding pipeline (2), its characterized in that: one side of preceding branch pipeline (2) is provided with back branch pipeline (5), be provided with water pump (4) between back branch pipeline (5) and the preceding branch pipeline (2), the one end fixed connection of the summarizing end and the back main pipeline (6) of back branch pipeline (5), be provided with pressure buffer (7) on back main pipeline (6), pressure buffer (7) include first barrel (8) and air inlet pipeline (15), the top of first barrel (8) is provided with buffer bin (14), the top swing joint of buffer bin (14) has upper cover (11), the below of upper cover (11) is provided with spring (12), the top fixed mounting of spring (12) is on upper cover (11), the top of diaphragm (9) is installed to the bottom fixed mounting of spring (12), diaphragm (9) slide and are set up in buffer bin (14), the lateral wall and buffer bin (14) of diaphragm (9) are closely laminated, the top swing joint of buffer bin (14) has upper cover (11), the lateral wall (15) of first barrel (15) are connected with the fixed air inlet port (17) of air inlet pipeline (15), the second cylinder (17) is communicated with the inside of the air inlet pipeline (15), a through hole (16) is formed in the inner wall of the second cylinder (17), and a sealing cover (18) is arranged on the inner side of the through hole (16).

2. The intermediate pressurizing device for long-distance drainage according to claim 1, wherein: the free end fixedly connected with flange (3) of preceding branch pipeline (2), the inlet outlet of water pump (4) is all fixedly connected with pipeline, pipeline tip on water pump (4) is all fixedly connected with flange (3).

3. The intermediate pressurizing device for long-distance drainage according to claim 1, wherein: the front branch pipeline (2) is provided with a plurality of branch pipes according to the requirement, and the branch pipes of the front branch pipeline (2) and the rear branch pipeline (5) are equal in number.

4. The intermediate pressurizing device for long-distance drainage according to claim 1, wherein: the springs (12) are symmetrically arranged in a plurality.

5. The intermediate pressurizing device for long-distance drainage according to claim 1, wherein: the sealing cover (18) is hinged with the inner wall of the second cylinder (17), and a sealing ring is arranged on one side, which is attached to the inner wall of the second cylinder (17), of the sealing cover (18).

6. The intermediate pressurizing device for long-distance drainage according to claim 1, wherein: the side wall of the buffer bin (14) is provided with exhaust holes (10) at the position close to the upper cover (11) and the position close to the transverse plate (9).