High-pressure protection structure for pipeline safety management and water supply and drainage system

Abstract

The utility model discloses a high-pressure protection structure for pipeline safety management, which is arranged at the butt joint position of a conveying main pipe and comprises a housing component sleeved on the conveying main pipe and an active pressure relief component capable of switching the communication state of the housing component and the conveying main pipe according to the pressure in the conveying main pipe, the active pressure relief assembly comprises a pressure relief pipe communicated with the main conveying pipe, the pressure relief pipe is sequentially divided into a liquid inlet section, a transition section and a liquid outlet section in the length direction, the liquid inlet section is located in the main conveying pipe, a plugging cock is arranged in the liquid inlet section and the transition section in a penetrating mode, and the communication state between the liquid inlet section and the liquid outlet section is switched through the plugging cock; when the pressure in the conveying main pipe fluctuates greatly, liquid in the conveying main pipe is discharged through the pressure relief pipe, so that pressure relief is achieved, normal operation of the water supply and drainage system is guaranteed, safety and stability caused by pressure over-limit leakage are avoided, and safety management of the water supply and drainage system is facilitated.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of water supply and drainage pipeline, specifically relates to a pipeline safety management uses high pressure protection structure and water supply and drainage system. BACKGROUND

[0002] Water supply and drainage pipeline engineering is the pipe (channel) system engineering of conveying and distributing industrial water supply and drinking water and collecting, conveying and discharging industrial wastewater, domestic sewage and rainwater. In order to guarantee the normal operation of the airport, the design and construction of the water supply and drainage of the airport are very important, in the use process of the water supply and drainage system, the pipeline is connected with the flange for the convenience of dismounting and maintaining, when the liquid pressure in the pipeline fluctuates, the sealing of the pipeline interface is influenced, liquid leakage and other situations occur, on the one hand, the liquid leakage in the concealed area cannot be found in time, which may influence the surrounding electrical equipment and cause safety hazards, at the same time, for some high pressure pipelines, the high pressure liquid leakage can also cause damage to the passing personnel, is not favorable for the safety management of the airport, and can also influence the normal operation of the water supply and drainage system. SUMMARY

[0003] Technical purpose: in view of the deficiencies existing in the water supply and drainage system of the existing airport, the utility model discloses a pipeline safety management uses high pressure protection structure and water supply and drainage system.

[0004] Technical scheme: in order to realize the above technical purpose, the utility model adopts the following technical scheme:

[0005] A kind of pipeline safety management uses high pressure protection structure, is set in the butt joint of conveying main pipe, it is characterized by including cover shell assembly being sleeved on conveying main pipe and the active pressure relief component that can switch the communication state of cover shell assembly and conveying main pipe according to the pressure in conveying main pipe, the active pressure relief component includes the pressure relief pipe being communicated with conveying main pipe, the pressure relief pipe is sequentially divided into liquid inlet section, transition section and liquid outlet section along length direction, the liquid inlet section is located in conveying main pipe, stopcock is arranged in liquid inlet section and transition section, and the communication state between liquid inlet section and liquid outlet section is switched by stopcock.

[0006] Preferably, the liquid inlet section and the liquid outlet section of the utility model are provided with through holes for liquid inlet and outlet on the side wall, when the pressure of the conveying main pipe is released, the liquid flows in or out through the corresponding through hole.

[0007] Preferably, the through holes of the utility model are uniformly arranged on the liquid inlet section and the liquid outlet section along the axial direction, and the pressure relief rate is controlled by controlling the axial movement distance of the stopcock.

[0008] Preferably, the plugging cock of the utility model is in sliding fit with the liquid inlet section and the transition section, and a driving mechanism for driving the plugging cock to rotate and axially move is connected to the end of the plugging cock.

[0009] Preferably, the driving mechanism of the utility model comprises a motor, and the driving end of the motor is connected with the plugging cock through a gear set.

[0010] Preferably, the shell assembly of the utility model comprises two housings with semicircular cross-sectional profiles, and the housings are hingedly connected at one end close to each other; the housings are buckled on the conveying main pipe by rotating around the hinge, and are locked and fixed by the bolts arranged at the abutting faces after buckling.

[0011] Preferably, the end of the housing of the utility model is provided with a plugging plate matched with the outer wall of the conveying main pipe, and the plugging plate, the housing and the outer wall of the conveying main pipe jointly form a pressure relief cavity.

[0012] Preferably, the utility model is provided with sealing gaskets between the abutting faces of the housings and the wall faces of the conveying main pipe.

[0013] The utility model also discloses a water supply and drainage system comprising a plurality of conveying main pipes connected in sequence, and the high-pressure protection structure for pipeline safety management is arranged between the abutting ends of the conveying main pipes.

[0014] Preferably, the utility model is provided with a pressure sensor for detecting the pressure in the pipe in the conveying main pipe, and the conveying main pipe is controlled to relieve pressure according to the detection result of the pressure sensor.

[0015] Beneficial effects: the high-pressure protection structure for pipeline safety management has the following beneficial effects:

[0016] 1. The shell assembly is arranged at the abutting position of the conveying main pipe, and when the pressure in the conveying main pipe fluctuates greatly, the liquid in the conveying main pipe can be discharged through the pressure relief pipe, so that the pressure is relieved, the normal operation of the water supply and drainage system is ensured, the safety and stability caused by pressure leakage are avoided, the effective protection of the water supply and drainage pipeline is realized, and the safety management of the water supply and drainage system is facilitated.

[0017] 2. The utility model guides the liquid flow through the through holes formed in the side walls of the liquid inlet section and the liquid outlet section, and through the opening structure, the impact caused by the liquid flow can be relieved when the pressure relief of the high-pressure pipeline is faced.

[0018] 3. The plugging cock is driven to rotate by the driving mechanism, and the driving mechanism can be associated with the detection facilities on the pipeline to realize automatic pressure relief control.

[0019] 4. The shell assembly of the utility model can form a relatively closed pressure relief cavity between the shell, the plugging plate and the outer wall of the conveying main pipe, can avoid liquid outflow, can maintain the short-time continuous operation of the water supply and drainage system, and can serve as protection for the butt joint of the conveying main pipe, prolongs the service life, and can also buffer when leakage occurs at the interface. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the utility model or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or prior art description.

[0021] Figure 1 It is a whole structure schematic view of the utility model;

[0022] Figure 2 It is a structure schematic view of the active pressure relief group of the utility model;

[0023] Figure 3 It is a local enlarged view of the middle A area of the utility model; Figure 2

[0024] Figure 4 It is a structure schematic view of the shell assembly of the utility model;

[0025] Among them, 1-conveying main pipe, 2-pressure relief pipe, 3-liquid inlet section, 4-intermediate section, 5-liquid outlet section, 6-plugging cock, 7-through hole, 8-motor, 9-shell, 10-latch, 11-plugging plate, 12-first gear, 13-second gear. DETAILED DESCRIPTION

[0026] Reference will now be made in detail to embodiments of the present disclosure, one or more examples of which are set forth herein below. Each example and embodiment is provided by way of explanation of the present disclosure, not limitation. Rather, the following description provides a convenient illustration for implementing exemplary embodiments of the present disclosure. In fact, those of ordinary skill in the art will be readily apparent that various modifications and variations can be made to the embodiments of the present disclosure without departing from the scope or spirit of the present disclosure.

[0027] As Figures 1-4 ​As shown in the figure, a kind of high-pressure protection structure for pipeline safety management is arranged at the butt joint of conveying main pipe 1, and it is characterized by comprising a casing assembly sleeved on the conveying main pipe 1 and an active pressure relief assembly capable of switching the communication state of the casing assembly and the conveying main pipe 1 according to the pressure in the conveying main pipe 1, the active pressure relief assembly comprises a pressure relief pipe 2 in communication with the conveying main pipe 1, the pressure relief pipe 2 is sequentially divided into a liquid inlet section 3, a transition section 4 and a liquid outlet section 5 along the length direction, the liquid inlet section 3 is located in the conveying main pipe 1, and a block plug 6 is arranged in the liquid inlet section 3 and the transition section 4, and the communication state between the liquid inlet section 3 and the liquid outlet section 5 is switched by the block plug 6.

[0028] The block plug 6 is slidably connected with the liquid inlet section 3 and the transition section 4, and a driving mechanism for driving the block plug to rotate and axially move is connected with the end of the block plug 6, the driving mechanism comprises a motor 8, the motor 8 is a waterproof motor, and the model and specification of the motor 8 are selected according to the driving force, and the driving end of the motor 8 is connected with the block plug 6 through a gear set; as Figure 3 shown, the gear set comprises a first gear 12 fixed on the driving end of the motor 8 and a second gear 13 rotatably arranged at the end of the liquid outlet section 5 of the pressure relief pipe 2, the first gear 12 and the second gear 13 are in meshing relationship, when the motor drives the motor 8 to rotate, the first gear 12 drives the second gear 13 to rotate, the block plug 6 is threadedly connected with the inner ring of the second gear 13, when the second gear 13 rotates, the block plug 6 slides along the axial direction of the pressure relief pipe, so as to realize the communication and disconnection between the liquid inlet section 3 and the liquid outlet section 5; the sliding of the block plug 6 can be realized by ribbing formed on the inner wall of the pressure relief pipe 2 along the axial direction, and this part of the sliding structure is a mature prior art, which is not shown in the figure; by embedding the ribbing into the block plug 6, a sliding fit structure similar to a guide rail is formed, so as to guide the sliding and limit the rotation of the block plug.

[0029] The driving mechanism of the utility model can cooperate with the pressure detection facilities, such as water pressure sensor or electronic pressure gauge, arranged in the pipeline to automatically detect the pressure in the conveying main pipe 1, so as to avoid the damage to the butt joint of the pipeline caused by pressure overrun, and affect the service life of the water supply and drainage pipeline; and it is beneficial to the personnel to manage the water supply and drainage system pipeline safely, and adjust the pressure in the pipeline in time.

[0030] For high-pressure pipeline, in order to reduce the pressure relief impact, as Figure 3 shown, the liquid inlet section 3 and the liquid outlet section 5 of the utility model are provided with through holes 7 for liquid inlet and outlet on the side wall, the through holes 7 are uniformly arranged along the axial direction on the liquid inlet section 3 and the liquid outlet section 5, when the pressure relief of the conveying main pipe 1 is carried out, the liquid flows into or out through the corresponding through holes 7, so as to effectively disperse the liquid pressure, reduce the impact on the casing assembly and other structures, and the axial movement distance of the block plug 6 can also be controlled to control the pressure relief rate.

[0031] The casing assembly of the utility model is used for temporarily storing the pressure-released liquid, avoiding the outflow of the liquid, comprising two casing bodies 9 with semicircular cross section, the ends of the casing bodies 9 close to each other are hinged to each other, the casing body 9 is buckled on the conveying main pipe 1 by rotating around the hinge, and the casing body 9 is locked and fixed by the bolt 10 arranged at the butt joint surface after buckling; the end of the casing body 9 is provided with the plugging plate 11 matched with the outer wall of the conveying main pipe 1, the butt joint surface of the casing body 9 and the wall surface of the conveying main pipe 1 are both provided with sealing pads for sealing, and the outer wall surface of the conveying main pipe 1, the plugging plate 11 and the casing body 9 jointly form the pressure relief cavity. Meanwhile, as a preferred, the personnel in the field can also consider the lowest point of the pressure relief cavity; the bypass pipeline is connected, and the liquid in the cavity is discharged, in this way, the continuous operation of the system can be maintained when the pressure in the system appears, and the operation time of the water supply and drainage system is prolonged.

[0032] The utility model discloses still a kind of water supply and drainage system, including several sequentially connected conveying main pipes 1, the high-pressure protection structure for pipeline safety management described above is set between the butt joint end of conveying main pipe 1, pressure sensor for detecting pressure in pipe is set in conveying main pipe 1, and the conveying main pipe is relieved pressure controlled according to pressure sensor detection result;Through the protection structure of the utility model, when pressure is too large in pipe due to equipment and other reasons, timely relief pressure, keep the normal operation of system, improve the safety of water supply and drainage system operation, cooperate with the pressure sensor set in conveying main pipe 1, can intuitively obtain the condition of each part pipe section in system, and can efficiently realize the safety management to water supply and drainage system.

Claims

1. A high-pressure protection structure for pipeline safety management, provided at a butt joint of a main pipe (1), characterized in that, The application relates to a casing assembly sleeved on a conveying main pipe (1) and an active pressure relief assembly capable of switching the communication state between the casing assembly and the conveying main pipe (1) according to the pressure in the conveying main pipe (1), wherein the active pressure relief assembly comprises a pressure relief pipe (2) in communication with the conveying main pipe (1), the pressure relief pipe (2) is sequentially divided into a liquid inlet section (3), a transition section (4) and a liquid outlet section (5) along the length direction, the liquid inlet section (3) is located in the conveying main pipe (1), a blocking plug (6) is arranged in the liquid inlet section (3) and the transition section (4), and the communication state between the liquid inlet section (3) and the liquid outlet section (5) is switched through the blocking plug (6).

2. The high-pressure protection structure for pipeline safety management according to claim 1, characterized by, The liquid inlet section (3) and the liquid outlet section (5) are provided with through holes (7) for liquid inlet and outlet on the side walls, and the liquid flows into or out of the through holes (7) when the conveying main pipe (1) is relieved.

3. The high-pressure containment structure for pipeline safety management according to claim 2, characterized in that, The through holes (7) are uniformly arranged on the liquid inlet section (3) and the liquid outlet section (5) along the axial direction, and the relief rate is controlled by controlling the axial movement distance of the blocking plug (6).

4. The high-pressure protection structure for pipeline safety management according to claim 1, characterized by, The blocking plug (6) is in sliding fit with the liquid inlet section (3) and the transition section (4), and a driving mechanism for driving the blocking plug (6) to rotate and axially move is connected to the end of the blocking plug (6).

5. The high-pressure containment structure for pipeline safety management according to claim 4, characterized in that, The driving mechanism comprises a motor (8), and the driving end of the motor (8) is connected with the blocking plug (6) through a gear set.

6. The high-voltage protective structure for pipeline safety management according to claim 5, characterized in that, The casing assembly comprises two half-circular shell bodies (9), the ends of the shell bodies (9) close to each other are hingedly connected, the shell bodies (9) are buckled on the conveying main pipe (1) by rotating around the hinge, and the shell bodies (9) are locked and fixed through the insertion pins (10) arranged on the abutting surfaces.

7. The high-pressure containment structure for pipeline safety management according to claim 6, characterized in that, The end of the shell body (9) is provided with a blocking plate (11) matched with the outer wall of the conveying main pipe (1), and the blocking plate (11), the shell body (9) and the outer wall of the conveying main pipe (1) jointly form a pressure relief cavity.

8. The high-pressure containment structure for pipeline safety management according to claim 7, characterized in that, Sealing pads are arranged between the abutting surfaces of the shell bodies (9) and the wall surfaces of the conveying main pipe (1) for sealing.

9. A water supply and drainage system comprising a number of delivery main pipes (1) connected in series, characterized in that, The pipe safety management high-pressure protection structure of any one of claims 1-8 is arranged between the abutting ends of the conveying main pipe (1).

10. The water supply and drainage system according to claim 9, wherein A pressure sensor for detecting the pressure in the pipe is arranged in the conveying main pipe (1), and the conveying main pipe is relieved according to the detection result of the pressure sensor.

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