CN115452098A - Pipeline leakage fixed-point monitoring equipment for urban water supply system and monitoring method thereof - Google Patents

Abstract

The invention discloses a pipeline leakage fixed-point monitoring device for an urban water supply system and a monitoring method thereof, wherein the pipeline leakage fixed-point monitoring device comprises an upper fixed seat, a lower fixed seat is arranged below the upper fixed seat, the upper fixed seat and the lower fixed seat are fixedly sleeved on a pipeline in a hoop shape through bolt connection, a positioning strip is welded at the bottom of the upper fixed seat, and sealing rings are respectively arranged at the end parts of the upper fixed seat and the lower fixed seat; the telescopic groove is formed in the inner wall of the upper fixing seat, a telescopic rod is placed in the telescopic groove, and a limiting rod is welded on the side of the telescopic rod; the movable groove penetrates through the inner portions of the upper fixing seat and the lower fixing seat, the toothed ring is placed in the movable groove, and one end of the adjusting groove is connected with an adjusting rod through a second spring. The pipeline leakage fixed-point monitoring equipment for the urban water supply system and the monitoring method thereof monitor the fixed-point leakage of the pipeline joint by using buoyancy, and simultaneously realize the plugging of the leakage by using the leaked buoyancy.

Description

A fixed-point monitoring device for pipeline leakage used in urban water supply systems and its monitoring method

technical field

The invention relates to the technical field of urban water supply systems, in particular to a fixed-point monitoring device for pipeline leakage used in urban water supply systems and a monitoring method thereof.

Background technique

In urban life, water resources are the resources that human beings rely on for survival. In order to ensure the daily water use of urban residents, it is particularly important to lay water supply systems in cities. The water supply systems mainly rely on pipelines for water transportation, but long-term use pipelines, especially pipelines Connections are prone to leakage due to factors such as water pressure, climate, and environment. In order to obtain leakage location data in time and reduce water loss, it is usually necessary to install leakage monitoring equipment at pipeline connections. However, the existing leakage The following problems exist in the use of fixed-point monitoring equipment:

With the development of science and technology, real-time monitoring of pipelines using ultrasonic, laser and other technologies is gradually put into use. However, this monitoring method requires continuous use of electricity, and it is inconvenient to use the buoyancy of leaked water for auxiliary monitoring, and consumes a lot of power. , it is necessary to lay a large number of power grids, or consume a lot of batteries. At the same time, the existing fixed-point leakage monitoring equipment is inconvenient to block the leakage point in time when the pipeline leakage is detected, resulting in continuous leakage of water and a waste of resources.

In view of the above problems, it is urgent to carry out innovative design on the basis of the original fixed-point leakage monitoring equipment.

Contents of the invention

The purpose of the present invention is to provide a fixed-point monitoring device for pipeline leakage and a monitoring method thereof for urban water supply systems, to solve the above-mentioned background technology, to propose the existing fixed-point monitoring equipment for leakage, which is inconvenient to use the buoyancy of leaking water for auxiliary monitoring, and at the same time It is inconvenient to block the leakage point in time.

In order to achieve the above object, the present invention provides the following technical solutions: a fixed-point monitoring device for pipeline leakage used in urban water supply systems, comprising;

The upper fixing seat is provided with a lower fixing seat below it. The upper fixing seat and the lower fixing seat are hoop-shaped and fixedly sleeved on the pipeline through bolt connection, and the middle part of the upper fixing seat and the lower fixing seat is located on the upper flange of the pipeline. The outer side of the upper fixing seat is welded with a positioning bar, and the positioning bar is located in the positioning groove, and the positioning groove is opened on the top of the lower fixing seat, and the ends of the upper fixing seat and the lower fixing seat are installed with sealing ring, and the side bolts at the top protrusion of the upper fixing seat are fixed with the control box;

A telescopic slot is opened on the inner wall of the upper fixing seat. A telescopic rod is placed in the telescopic slot, and one end of the telescopic rod penetrates through the telescopic slot to fix a floating plate. The side of the telescopic rod is welded with a limit rod, and the limit The rod is located in the limiting groove, and the limiting groove is opened on the side wall of the telescopic groove, and a first spring is fixed between the bottom of the limiting rod and the limiting groove, and a pressure sensor is installed on the top of the limiting groove;

The movable groove runs through the interior of the upper and lower fixed seats, a gear ring is placed in the movable groove, and an adjustment groove is opened between the movable groove and the interior of the upper and lower fixed seats, and the adjustment groove The inner shaft is connected with a cam, and one end of the adjustment groove is connected with an adjustment rod through a second spring, and one end of the adjustment rod passes through the adjustment groove and is located inside the upper and lower fixing seats, and a blocking plate is welded inside, and the blocking plate is located at outside of the flange.

Preferably, the positioning strip and the positioning groove are engaged with each other, and two positioning strips are arranged symmetrically at the bottom of the upper fixing seat, and the two positioning strips are snapped into the positioning groove, and cooperate with the sealing ring to maintain the upper fixing seat and the positioning groove. The tightness between the lower fixing seat and the pipe.

Preferably, the telescopic rod is fixed with a rack, and the outer side of the telescopic rod is provided with a first gear and a second gear, and both the first gear and the second gear are embedded in the shaft connected to the inside of the upper fixing seat, and the telescopic rod Forced movement makes the rack contact with the first gear.

Preferably, the racks are equidistantly distributed on the outside of the telescopic rod, and the rack and the first gear are meshed with each other, and the first gear is meshed with the second gear, and the second gear is meshed with the gear ring, and the telescopic rod Forced activities drive the first gear to rotate, and the second gear drives the gear ring to rotate.

Preferably, the floating plate has a downwardly concave arc-shaped structure design, and two floating plates are arranged symmetrically with respect to the blocking plate. When the leakage water fills the upper and lower fixing seats, the force on the floating plate can drive The telescopic rod moves upwards.

Preferably, the limit rod and the telescopic rod fit and slide in the limit groove and the telescopic groove respectively, and the limit rod forms an elastic sliding structure in the limit groove through the first spring, and the limit rod follows the movement of the telescopic rod, Contact with the pressure sensor and cooperate with the control box to realize the receiving, processing and sending of monitoring data.

Preferably, the outer side of the cam is designed in a sawtooth structure, and the cam and the gear ring are meshed with each other, and when the gear ring rotates, the cam can be driven to rotate.

Preferably, the adjusting rod fits and slides in the adjusting groove through the second spring, and the blocking plate at one end of the adjusting rod is designed in an arc shape, and the blocking plate is symmetrically arranged in the upper fixing seat and the lower fixing seat. Two, and four blocking plates form a ring-shaped structure attached to the outside of the flange. The cam rotates to squeeze the adjustment, so that the adjusting rod blocking plate moves, and the pipes at both ends are adjusted through the four blocking plates. Seal the gaps in the flanges above.

Another technical solution provided by the present invention is to provide a monitoring method for fixed-point monitoring equipment for pipeline leakage in urban water supply systems, including the following steps:

S1: First, set the upper fixing seat and the lower fixing seat on the joint of the pipe, and make the raised position of the upper fixing seat and the lower fixing seat correspond to the flange, so that the positioning bar snaps into the positioning groove, and cooperates with the sealing ring Realize the sealing between the upper fixing seat and the lower fixing seat and the pipeline;

S2: When the flange connection on the pipeline leaks, water enters the upper and lower fixing seats, and as the water level rises, the floating plate is driven to float, and then the telescopic rod is driven to slide upward in the telescopic slot;

S3: The telescopic rod is forced to drive the limit rod to slide upward in the limit groove, so that the top of the limit rod contacts the pressure sensor, and the pressure sensor transmits the signal to the control box, which receives, processes and transmits the signal , to achieve pipeline leakage monitoring.

Compared with the prior art, the beneficial effects of the present invention are: the fixed-point monitoring equipment and monitoring method for pipeline leakage used in urban water supply systems;

1. Through the upper fixing seat and the lower fixing seat set on the pipe, they are snapped into the positioning groove through the positioning strip, and the use of the sealing ring makes the upper fixing seat, the lower fixing seat and the outside of the pipe form a closed space, When water leaks, the space can be filled;

2. By setting the floating plate with downward concave arc structure, when the water fills the upper and lower fixing seats, the floating plate is forced to drive the telescopic rod to slide upward in the telescopic groove, so that the telescopic rod drives the limit rod to move upward , the limit rod is in contact with the pressure sensor, cooperates with the control box to collect, process and send the signal, monitor the leak location in time, and realize the leak monitoring through the buoyancy of the water;

3. During the rising process of the telescopic rod, the outer rack is in contact with the first gear, and the second gear drives the gear ring to rotate in the movable groove, and the gear ring meshes with the serrated cam on the outside, driving the cam The rotation makes the cam squeeze the adjusting rod, and drives the four sealing plates to move inward synchronously, to seal the gap leakage of the flange, and realize automatic sealing by the buoyancy of water.

Description of drawings

Fig. 1 is a schematic diagram of the front section structure of the present invention;

Fig. 2 is a schematic view of the structure of the upper fixing base of the present invention;

Fig. 3 is a schematic diagram of the top view structure of the lower fixing seat of the present invention;

Fig. 4 is a schematic diagram of the side section structure of the telescopic rod of the present invention;

Fig. 5 is a schematic diagram of the enlarged structure at A in Fig. 4 of the present invention;

Fig. 6 is a schematic diagram of a side sectional structure of the adjusting rod of the present invention.

In the figure: 1, upper fixing seat; 11, lower fixing seat; 12, pipe; 13, flange; 14, positioning bar; 15, positioning groove; 16, sealing ring; 17, control box; 2, telescopic groove; 21 , expansion rod; 211, rack; 212, first gear; 213, second gear; 22, floating plate; 23, limit rod; 24, limit slot; 25, first spring; 26, pressure sensor; 3 31, gear ring; 32, adjusting groove; 33, cam; 34, second spring; 35, adjusting rod; 36, blocking plate.

detailed description

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

Please refer to Figures 1-6, the present invention provides a technical solution: a fixed-point monitoring device for pipeline leakage used in urban water supply systems, including an upper fixing seat 1, a lower fixing seat 11, a pipe 12, a flange 13, and a positioning bar 14 , positioning groove 15, sealing ring 16, control box 17, telescopic groove 2, telescopic rod 21, rack 211, first gear 212, second gear 213, floating plate 22, limit rod 23, limit groove 24, the first A spring 25, a pressure sensor 26, a movable groove 3, a gear ring 31, an adjustment groove 32, a cam 33, a second spring 34, an adjustment rod 35 and a blocking plate 36;

The upper fixed seat 1 is provided with a lower fixed seat 11 below it, and the upper fixed seat 1 and the lower fixed seat 11 are hoop-shaped and fixedly sleeved on the pipeline 12 through bolt connection, and the middle part of the upper fixed seat 1 and the lower fixed seat 11 Located on the outside of the upper flange 13 of the pipeline 12, the bottom of the upper fixing seat 1 is welded with a positioning bar 14, and the positioning bar 14 is located in the positioning groove 15, and the positioning groove 15 is opened on the top of the lower fixing seat 11, and the upper fixing seat 1 and The ends of the lower fixing base 11 are equipped with sealing rings 16, and the side bolts at the top protrusion of the upper fixing base 1 are fixed with a control box 17;

The telescopic groove 2 is opened on the inner wall of the upper fixing seat 1, and a telescopic rod 21 is placed in the telescopic groove 2, and one end of the telescopic rod 21 runs through the telescopic groove 2 and is fixed with a floating plate 22, and the limit rod is welded on the side of the telescopic rod 21 23, and the limit rod 23 is located in the limit groove 24, and the limit groove 24 is opened on the side wall of the telescopic groove 2, and the first spring 25 is fixed between the bottom of the limit rod 23 and the limit groove 24, At the same time, a pressure sensor 26 is installed on the top of the limit groove 24;

The movable groove 3 runs through the inside of the upper fixed seat 1 and the lower fixed seat 11, and a toothed ring 31 is placed in the movable groove 3, and a set Adjustment groove 32, and the inner axis of adjustment groove 32 is connected with cam 33, one end of adjustment groove 32 is connected with adjustment rod 35 through second spring 34, and one end of adjustment rod 35 runs through adjustment groove 32 and is located at upper fixing seat 1 and lower fixing seat The inside of 11 is welded with a blocking plate 36 , and the blocking plate 36 is located on the outside of the flange 13 .

The positioning bar 14 and the positioning groove 15 are engaged with each other, and two positioning bars 14 are arranged symmetrically at the bottom of the upper fixing seat 1;

As shown in Figure 1-3, the upper fixing seat 1 and the lower fixing seat 11 are sleeved on the pipe 12 through fasteners, so that the positioning bar 14 is snapped into the positioning groove 15, and the use of the sealing ring 16 is used to make the upper fixing seat 1, the lower fixing seat 11 and the outside of the pipeline 12 form a closed space, which is convenient for storing leaked water;

A rack 211 is fixed on the telescopic rod 21, and the outer side of the telescopic rod 21 is provided with a first gear 212 and a second gear 213, and the first gear 212 and the second gear 213 are embedded in the shaft and connected to the inside of the upper fixed seat 1 , the racks 211 are equidistantly distributed on the outer side of the telescopic rod 21, and the racks 211 are meshed with the first gear 212, and the first gear 212 is meshed with the second gear 213, and the second gear 213 is meshed with the ring gear 31 , the outer side of the cam 33 is designed in a sawtooth structure, and the cam 33 and the gear ring 31 are engaged with each other, the adjusting rod 35 fits and slides in the adjusting groove 32 through the second spring 34, and the blocking plate 36 at one end of the adjusting rod 35 It is designed in an arc shape, and two blocking plates 36 are symmetrically arranged in the upper fixing seat 1 and the lower fixing seat 11, and the four blocking plates 36 form a circular structure that is attached to the outside of the flange 13 ;

As shown in Figure 1, Figure 4 and Figure 6, when the telescopic rod 21 is forced to slide upward in the telescopic groove 2, the rack 211 on the outside of the telescopic rod 21 meshes with the first gear 212 to drive it to rotate, through the first gear 212 and The second gear 213 drives the gear ring 31 to rotate in the movable groove 3, the gear ring 31 meshes with the outside of the cam 33 to drive it to rotate in the adjustment groove 32, and the cam 33 contacts with the top of the adjustment rod 35, driving the adjustment rod 35 and the blocking plate 36 activities, the four blocking plates 36 are in contact with the outside of the flange 13 to block it, and at the same time cooperate with the use of the second spring 34, when the cam 33 rotates back to the original position, the adjustment rod 35 can slide back to the original position, which is convenient Continue to use next time;

The floating plate 22 is designed in a downwardly concave arc structure, and two floating plates 22 are arranged symmetrically with respect to the blocking plate 36, and the limit rod 23 and the telescopic rod 21 fit and slide in the limit groove 24 and the telescopic groove 2 respectively. , and the limiting rod 23 forms an elastic sliding structure in the limiting groove 24 through the first spring 25;

As shown in Figure 1 and Figure 4-5, when leakage occurs, the water level in the upper fixed seat 1 and the lower fixed seat 11 continues to rise, and the floating plate 22 moves upward under force, driving the telescopic rod 21 to move upward in the telescopic groove 2, through The telescopic rod 21 drives the stop rod 23 to slide upward in the stop slot 24, so that the stop rod 23 contacts the pressure sensor 26, and the pressure sensor 26 transmits the signal to the control box 17, and the electrical components in the control box 17 perform signal processing. Collection, analysis and transmission realize fixed-point leakage monitoring, and at the same time cooperate with the use of the first spring 25, when the leakage problem is solved, each component can return to its original position, which is convenient for the next use.

Another technical solution provided by the present invention is to provide a monitoring method for fixed-point monitoring equipment for pipeline leakage in urban water supply systems, including the following steps:

The first step: first, set the upper fixing seat 1 and the lower fixing seat 11 at the interface of the pipe 12, and make the raised positions of the upper fixing seat 1 and the lower fixing seat 11 correspond to the flange 13, so that the positioning bar 14 Snap into the positioning groove 15, and cooperate with the sealing ring 16 to realize the sealing between the upper fixing seat 1 and the lower fixing seat 11 and the pipeline 12;

Step 2: When the flange 13 joint on the pipeline 12 leaks, water enters the interior of the upper fixing seat 1 and the lower fixing seat 11, and as the water level rises, the floating plate 22 is driven to float up, and then the telescopic rod 21 is driven to expand and contract. Slide up in slot 2;

The third step: the telescopic rod 21 is forced to drive the limit rod 23 to slide upward in the limit groove 24, so that the top of the limit rod 23 is in contact with the pressure sensor 26, and the pressure sensor 26 transmits the signal to the control box 17. The box 17 receives, processes and transmits the signal to realize pipeline leakage monitoring.

Working principle: When using the fixed-point monitoring equipment and monitoring method for pipeline leakage used in urban water supply systems, as shown in Figure 1-6, firstly, the upper fixing seat 1 and the lower fixing seat 11 are set on the pipeline 12 through fasteners. At the interface of the upper flange 13, when leakage occurs, the water level in the upper fixed seat 1 and the lower fixed seat 11 rises, and the floating plate 22 drives the telescopic rod 21 and the limit rod 23 to rise, and the limit rod 23 and the pressure sensor 26 Contact, cooperate with the electrical components in the control box 17 to carry out signal transmission to realize fixed-point leakage monitoring;

Then, when the telescopic rod 21 rises, the first gear 212 and the second gear 213 drive the gear ring 31 to rotate, and the gear ring 31 drives the cam 33 to rotate, and the adjusting rod 35 is squeezed, so that the blocking plate 36 moves toward the flange 13. Approaching, the joints of the flanges 13 are blocked by four blocking plates 36 .

Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments, or perform equivalent replacements for some of the technical features. Within the spirit and principles of the present invention, any modifications, equivalent replacements, improvements, etc., shall be included in the protection scope of the present invention.

Claims (9)

1. A pipeline leakage fixed-point monitoring device for urban water supply systems, characterized in that: comprising: The upper fixing seat is provided with a lower fixing seat below it. The upper fixing seat and the lower fixing seat are hoop-shaped and fixedly sleeved on the pipeline through bolt connection, and the middle part of the upper fixing seat and the lower fixing seat is located on the upper flange of the pipeline. The outer side of the upper fixing seat is welded with a positioning bar, and the positioning bar is located in the positioning groove, and the positioning groove is opened on the top of the lower fixing seat, and the ends of the upper fixing seat and the lower fixing seat are installed with sealing ring, and the side bolts at the top protrusion of the upper fixing seat are fixed with the control box; A telescopic slot is opened on the inner wall of the upper fixing seat. A telescopic rod is placed in the telescopic slot, and one end of the telescopic rod penetrates through the telescopic slot to fix a floating plate. The side of the telescopic rod is welded with a limit rod, and the limit The rod is located in the limiting groove, and the limiting groove is opened on the side wall of the telescopic groove, and a first spring is fixed between the bottom of the limiting rod and the limiting groove, and a pressure sensor is installed on the top of the limiting groove; The movable groove runs through the interior of the upper and lower fixed seats, a gear ring is placed in the movable groove, and an adjustment groove is opened between the movable groove and the interior of the upper and lower fixed seats, and the adjustment groove The inner shaft is connected with a cam, and one end of the adjustment groove is connected with an adjustment rod through a second spring, and one end of the adjustment rod passes through the adjustment groove and is located inside the upper and lower fixing seats, and a blocking plate is welded inside, and the blocking plate is located at outside of the flange. 2. A fixed-point monitoring device for pipeline leakage used in urban water supply systems according to claim 1, characterized in that: the positioning bar and the positioning groove are engaged with each other, and the positioning bar is symmetrical at the bottom of the upper fixing seat There are two settings. 3. A pipeline leakage fixed-point monitoring device for urban water supply systems according to claim 1, characterized in that: said telescopic rod is fixed with a rack, and the outer side of the telescopic rod is provided with a first gear and a second gear. gears, and the first gear and the second gear are both embedded shafts connected to the inside of the upper holder. 4. A pipeline leakage fixed-point monitoring device for urban water supply systems according to claim 3, characterized in that: the racks are equidistantly distributed on the outside of the telescopic rod, and the racks and the first gear are meshed with each other, And the first gear meshes with the second gear, and the second gear meshes with the ring gear. 5. A fixed-point monitoring device for pipeline leakage used in urban water supply systems according to claim 1, characterized in that: the floating plate is designed in a downwardly recessed arc structure, and the floating plate is arranged symmetrically with respect to the blocking plate There are two. 6. A pipeline leakage fixed-point monitoring device for urban water supply systems according to claim 1, characterized in that: the limit rod and the telescopic rod fit and slide in the limit groove and the telescopic groove respectively, and the limit The positioning rod forms an elastic sliding structure in the limiting groove through the first spring. 7. The fixed-point monitoring device for pipeline leakage used in urban water supply systems according to claim 1, characterized in that: the outer side of the cam is designed in a sawtooth structure, and the cam and the gear ring mesh with each other. 8. A fixed-point monitoring device for pipeline leakage in urban water supply systems according to claim 1, characterized in that: the adjustment rod fits and slides in the adjustment groove through the second spring, and one end of the adjustment rod is blocked The plates are designed in an arc shape, and there are two sealing plates arranged symmetrically in the upper fixing seat and the lower fixing seat, and the four sealing plates form a ring-shaped structure attached to the outside of the flange. 9. A monitoring method for fixed-point monitoring equipment for pipeline leakage in urban water supply systems according to claim 1, characterized in that: comprising the following steps: S1: First, set the upper fixing seat and the lower fixing seat on the joint of the pipe, and make the raised position of the upper fixing seat and the lower fixing seat correspond to the flange, so that the positioning bar snaps into the positioning groove, and cooperates with the sealing ring Realize the sealing between the upper fixing seat and the lower fixing seat and the pipeline; S2: When the flange connection on the pipeline leaks, water enters the upper and lower fixing seats, and as the water level rises, the floating plate is driven to float, and then the telescopic rod is driven to slide upward in the telescopic slot; S3: The telescopic rod is forced to drive the limit rod to slide upward in the limit groove, so that the top of the limit rod contacts the pressure sensor, and the pressure sensor transmits the signal to the control box, which receives, processes and transmits the signal , to achieve pipeline leakage monitoring.

Images