CN115539754A

CN115539754A - Plugging liquid blocking device

Info

Publication number: CN115539754A
Application number: CN202211416211.4A
Authority: CN
Inventors: 张德军; 刘福臣
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-11-12
Filing date: 2022-11-12
Publication date: 2022-12-30

Abstract

The utility model relates to a shutoff liquid blocking device belongs to the shutoff instrument of closed flow channel, and it includes that inside is the inflation body of cavity setting, with the filling tube and the pull cable of one end fixed connection in the inflation body of inflation body intercommunication, the filling tube be used for with the pump feed through of pump sending filler, the pull cable is the flexible setting to its length is greater than the radius when the inflation body is not aerifyd. The application has the effect of convenient operation.

Description

Plugging liquid blocking device

Technical Field

The application relates to the field of closed flow channel plugging tools, in particular to a plugging liquid blocking device.

Background

When the pipeline breaks and leaks water, the pipeline plugging air bag is used for plugging the position at the upstream of the water leakage point, so that liquid blocking is realized. And then repairing or replacing the pipeline at the water leakage position. The pipeline plugging air bag, which can also be called a water plugging air bag, is made of high-quality rubber and is generally expanded by adopting an inflation method.

When the multi-head sewer pipe leaks, the water-blocking air bag needs to be close to the water leakage position as much as possible so as to avoid other water inlet pipes communicated between the plugging position and the water leakage position. Before plugging, a water leakage point is determined, then a water inlet positioned at the upstream of the water leakage point is positioned, and an uninflated water plugging air bag is connected with a traction rope and a filling pipeline. The water blocking air bag is put into the pipe body from the water inlet pipe, so that the water blocking air bag flows to a water leakage point under the conveying of water flow. And judging whether the air bag reaches the position near the water leakage point or not by using the length of the traction rope. When the water-blocking air bag is close to a water leakage point, the air pump is utilized to inflate the air bag through the filling pipeline.

When the gas pressure in the water plugging air bag reaches the specified requirement, the water plugging air bag fills the section of the whole pipeline, and the water leakage is plugged by utilizing the friction force generated by the wall of the pipeline plugging air bag and the pipeline, so that the aim of rapidly blocking the water flow in the target pipeline section through inflation and expansion is fulfilled, and the aim of no water seepage is fulfilled.

In view of the above-mentioned related arts, the inventor thinks that the plugging can be performed only by judging the distance between the water leakage point and the upstream water inlet in advance when the device is used, and thus the device has the defect of inconvenient operation.

Disclosure of Invention

For the shutoff of more convenience seals the runner, this application provides a shutoff and hinders liquid device.

The utility model provides a shutoff hinders liquid device, is the inflation body that the cavity set up, with the filling tube and the pull cable of one end fixed connection in the inflation body that the inflation body communicates including inside, the filling tube be used for with the pump intercommunication of pump sending filler, the pull cable is the flexibility and sets up to when the inflation body is not aerifyd, pull cable length is greater than its and the inflation body between junction and the inflation body lateral wall between the interval.

By adopting the technical scheme, when the liquid of the closed flow channel needs to be blocked, the position of the water leakage point is preliminarily judged, and then the water inlet at the upstream of the water leakage pipe is determined. The expansion body is placed into the closed flow passage from the water inlet, and the traction cable is driven by water flow to block the liquid blocking device to integrally flow to the downstream water leakage flow passage. When the whole plugging and water blocking device is positioned at the upstream of the water leakage point, an operator can utilize the filling pipe to inflate the expansion body so as to expand the expansion body to plug the sealed flow passage. When more accurate plugging is needed, when the plugging water blocking device reaches a water leakage point, the traction cable of the plugging water blocking device flows into a crack of the closed flow channel under the influence of water flow at the water leakage position, and therefore the expansion body is pulled and fixed. At the moment, the pulling force applied to the filling pipe is reduced, so that an operator positioned at the water inlet can judge that the expansion body reaches the water leakage point, the filling pipe is pulled to enable the expansion body to move a certain distance to the upstream of the water leakage point, and then the filling pipe is used for inflating the expansion body to enable the expansion body to expand to plug the closed flow channel. When the water inlet and the water leakage position do not need to be measured, the expansion body can be close to the water leakage position as much as possible, the closed flow passage is blocked, and the operation is more convenient.

Optionally, the traction cable is multiple.

By adopting the technical scheme, the probability that the traction cable enters the closed flow channel crack at the water leakage position is improved, and the convenience in use of the plugging and liquid blocking device is improved.

Optionally, at least one of the traction cables has a density greater than the density of the fluid conveyed in the closed flow path.

By adopting the technical scheme, the traction cable can be sunk into the bottom of the closed flow channel, and when a crack causing water leakage of the closed flow channel is positioned at the lower part of the closed flow channel, the traction cable can also enter the crack, so that the expansion body is pulled.

Optionally, at least one of said traction cables has a density less than the density of the fluid conveyed in the closed flow path.

Through adopting above-mentioned technical scheme, can make the haulage cable float on the liquid level, when closed runner crack near the liquid level, under the effect of water tension, the haulage cable that floats on the liquid level flows into the crack under the influence of rivers more easily.

Optionally, the filling pipe or the expansion body is provided with a one-way valve, and the one-way communication direction of the one-way valve is from the filling pipe to the expansion body.

By adopting the technical scheme, the pump connected with the filling pipe can be closed after filling is finished, the expansion body is kept in an expansion state by utilizing the one-way valve, the operation is more convenient, the pump does not need to be kept running, and the effects of energy conservation and emission reduction are achieved.

Optionally, a pressure release valve for exhausting gas to the expansion body is installed on the filling pipe or the expansion body, and the pressure release valve is located downstream of the one-way valve in the one-way communication direction.

By adopting the technical scheme, when the closed flow channel needs to be restored after being repaired, the filler in the expansion body is discharged by utilizing the pressure release valve.

Optionally, the filling pipe is detachably connected to the expansion body through a rope breaking valve.

By adopting the technical scheme, when the closed flow passage does not need to be communicated again, the expansion body can be left in the closed flow passage, the filling pipe is separated from the expansion body by utilizing the rope breaking valve, and the recovery of the filling pipe is realized.

Optionally, the expansion body includes a communicating pipe and an air bag sleeved outside the communicating pipe, two ends of the air bag are fixedly connected with the communicating pipe, an opening communicated with the inside of the air bag is formed in a side wall of the communicating pipe, one end of the communicating pipe is closed, the other end of the communicating pipe is fixedly connected with the filling pipe, and the two are communicated.

By adopting the technical scheme, the axial bearing capacity of the expansion body is increased by utilizing the communicating pipe, more radial expansion is realized when the air bag expands, the axial expansion is reduced, and less fillers are utilized to plug the closed flow passage.

Optionally, the traction cable is fixedly connected to one end of the communicating pipe, which is far away from the filling pipe.

Through adopting above-mentioned technical scheme, when the pull cable card in the gap, concentrate on communicating pipe to the pressure of inflation body, rather than on the gasbag. The traction cable can provide more constant tension for the expansion body.

Optionally, the gasbag is along communicating pipe length direction's both ends fixedly connected with coiler, the coiler includes coaxial fixed connection in the gasbag along communicating pipe length direction's solid fixed ring and circumference fixed connection in the spring wire of gasbag tip, the spring wire is spiral setting, and its one end fixed connection is in solid fixed ring, and the other end extends to the one end that the gasbag kept away from communicating pipe along the spiral line.

Through adopting above-mentioned technical scheme, when exhausting under the effect of winder, realize the shrink of gasbag, make the volume of gasbag littleer, be favorable to the recovery of inflation body more.

In summary, the present application includes at least one of the following beneficial technical effects:

when the expansion body reaches the water leakage point of the closed flow passage, the traction rope flows into the crack of the closed flow passage under the influence of water flow at the water leakage position, so that the expansion body is pulled and fixed. Before plugging, the distance between the water inlet and the water leakage position is not required to be accurately measured and calculated, the water inlet and the water leakage position are approached to the water leakage position as much as possible, then the closed flow channel is plugged, and the operation is more convenient.

The density of at least one traction rope is greater than that of the fluid conveyed in the closed flow passage, and the density of at least one traction rope is less than that of the fluid conveyed in the closed flow passage, so that the traction rope is suitable for closed flow passage cracks at different positions, and the probability that the traction rope is clamped by the cracks is increased.

The inflation body includes communicating pipe and the gasbag of intercommunication outside of the tubes is located to the cover, and wherein the both ends of gasbag are in communicating pipe fixed connection, are used for intercommunication gasbag and filling tube communicating pipe to the one end of traction cable fixed connection communicating pipe when the traction cable joint in the crack of closed runner, can effectively reduce the gasbag and draw and drag, can provide more invariable pulling force for the inflation body.

Drawings

Fig. 1 is a cross-sectional view for showing the overall structure in embodiment 1 of the present application.

Fig. 2 is a cross-sectional view for showing the entire structure in embodiment 2 of the present application.

Fig. 3 is a perspective view of a retractor according to embodiment 3 of the present application, in which an airbag is hidden.

Description of reference numerals:

100. an expansion body; 101. a pressure relief valve;

110. a communicating pipe; 111. an opening; 112. a one-way valve; 120. an air bag; 130. a winder; 131. a fixing ring; 132. a spring steel wire;

200. a fill tube;

300. and (4) pulling a rope.

Detailed Description

The present application is described in further detail below with reference to figures 1-3.

The embodiment of the application discloses shutoff hinders liquid device.

Example 1:

referring to fig. 1, the plugging and liquid blocking device comprises:

the expansion body 100 is cylindrical as a whole, is hollow inside, and is filled with filler, and the volume expansion of the expansion body plugs the closed flow channel;

and a filling pipe 200 having one end fixedly connected to the expansion body 100 and communicating with the inner cavity of the expansion body 100. The other end of the filling tube 200 is used for connecting with a pump, and the pump conveys the filler into the expansion body 100 through the filling tube 200, so that the expansion body 100 is expanded to seal the closed flow passage. The filler in this embodiment is air. When the closed flow path does not need to be communicated, the expansion body 100 may be made of foaming glue or cement. The sealed flow passage can be a pipeline, a passage formed by penetrating a solid body and used for passing a fluid, and a passage formed by a sealed water tank. Wherein the above mentioned entity may be a dam.

Referring to fig. 1, the inflation body 100 includes a communication tube 110 and an airbag 120. Wherein one end of the communication pipe 110 is closed, and the other end is fixedly connected with the filling pipe 200 and is communicated with the same. The airbag 120 is sleeved outside the communication pipe 110, and both ends of the airbag 120 are fixedly connected to the communication pipe 110. An opening 111 for communicating with the inner cavity of the airbag 120 is opened on the side wall of the communication pipe 110. The communication pipe 110 may improve the ability of the expansion body 100 to withstand the axial force. In addition, when the balloon 120 is expanded, more radial expansion is performed, the axial expansion is reduced, and the closed flow passage can be blocked by using less fillers.

Referring to fig. 1, a check valve 112 is installed at an opening 111 of the communication pipe 110, and a one-way communication direction of the check valve 112 is a direction in which the communication pipe 110 flows toward the airbag 120. After the air bag 120 is filled, the pump communicated with the filling pipe 200 can be closed, the expansion body 100 is kept in an expansion state by using the one-way valve 112, the operation is more convenient, and the pump does not need to be kept running, so that the effects of energy conservation and emission reduction are achieved.

Referring to fig. 1, the air bag 120 is provided with a relief valve 101, and in the present embodiment, the relief valve 101 is an electromagnetic relief valve, and a control line of the electromagnetic relief valve 101 is wound around a filling pipe 200. When the closed flow channel needs to be restored after being repaired, the pressure relief valve 101 can be controlled to be opened, and the expansion body 100 is retracted after the filler in the air bag 120 is discharged.

In this example, the connection mode between the filling pipe 200 and the communicating pipe 110 can be detachable through a quick coupling, which is convenient for assembly and disassembly.

When the closed flow path does not need to be communicated again and the adopted filler is foaming colloid or cement, the filling pipe 200 and the communicating pipe 110 are connected through a rope breaking valve. After the expansion body 100 completes the sealing of the closed flow passage, the rope of the rope breaking valve is pulled to separate the filling pipe 200 from the communicating pipe 110, and the filling pipe 200 is recovered.

When the multi-head sewer pipe leaks water, the expansion body 100 needs to be as close to the leaking position as possible, so as to avoid the communication between the plugging position and the leaking position with other water inlet pipes. Therefore, before the closed flow channel is blocked, the distance between the water leakage position of the closed flow channel and the upstream water inlet needs to be calculated and measured, and then the blocking can be implemented, so that the operation is inconvenient.

To alleviate the above problems, the occlusion and fluid retention device further comprises a pull cable 300. The traction cable 300 is a flexible, long strip, and one end thereof is fixedly connected to the expansion body 100. The length of the pull cable 300 is greater than the radius of the inflation body 100 when it is not inflated. When the expansion body 100 reaches the water leakage point of the closed flow channel, the traction rope 300 of the expansion body flows into the crack of the closed flow channel under the influence of water flow at the water leakage point, so that the expansion body 100 is pulled and fixed.

In this embodiment, the pulling cable 300 is fixedly connected to an end of the connection pipe 110 away from the filling pipe 200, so as to prevent the pulling cable 300 from directly pulling the airbag 120 to cause deformation of the airbag 120; and the connection of the traction cable 300 to the communication pipe 110 may provide a more constant tension to the expansion body 100.

The implementation principle of the plugging liquid blocking device of the embodiment is as follows: when the closed flow passage needs to be blocked, the position of a water leakage point is preliminarily judged, and then a water inlet at the upstream of the water leakage pipe is determined. The expansion body 100 is put into the closed flow path from the water inlet, and the expansion body 100 is pulled by the filling pipe 200 so as to gradually move toward the water leakage position located downstream with the water. When the expansion body 100 reaches the water leakage point of the closed flow passage, the traction cable 300 of the expansion body may flow into the crack of the closed flow passage under the influence of the water flow at the water leakage point, so that the expansion body 100 is pulled and fixed.

At this time, the pulling force applied to the filling pipe 200 is reduced, so that an operator at the water inlet can judge that the expansion body 100 reaches the water leakage point, at this time, the filling pipe 200 needs to be pulled to move the expansion body 100 to the upstream of the water leakage point for a certain distance, and then the filling pipe 200 is used to inflate the expansion body 100 to expand the expansion body to block the closed flow passage. It is worth noting that the embodiment is more suitable for the closed flow passage with larger cracks, more than 50% of water flows out of the cracks due to the cracks from the water flow in the closed flow passage, and the probability that the traction rope 300 enters the cracks of the closed flow passage can be improved.

Example 2:

the present embodiment is different from embodiment 1 in that: referring to fig. 2, there are a plurality of traction cables 300, and at least one of the traction cables 300 has a density greater than a density of the fluid transported in the closed fluid passage, and at least one of the traction cables 300 has a density less than the density of the fluid transported in the closed fluid passage.

When the crack causing the water leakage of the closed flow passage is positioned at the lower part of the closed flow passage, the traction rope 300 with the density higher than that of the fluid conveyed in the closed flow passage sinks into the bottom of the closed flow passage, and the probability that the traction rope 300 enters the crack is improved.

When the closed flow path is fractured near the liquid surface, the traction rope 300, which has a density lower than that of the fluid conveyed in the closed flow path, floats on the liquid surface. Under the action of the surface tension of the water, the traction cable 300 floating on the liquid surface is more easily influenced by water flow to flow into the crack, and the probability that the traction cable 300 enters the crack is improved.

This embodiment differs from embodiment 1 in that: referring to fig. 2, a check valve 112 is installed at an end of the filling tube 200 remote from the expansion body 100. The pressure relief valve 101 is also mounted to the end of the fill tube 200 adjacent the expansion body 100 and between the check valve 112 and the expansion body 100. When the closed flow channel needs to be restored after being repaired, the pressure relief valve 101 is opened, and the filler in the filling pipe 200 is discharged. Because the pressure relief valve 101 is near one end of the pump, operation is facilitated.

The present embodiment differs from embodiment 1 in that: both axial ends of the air bag 120 are fixedly connected with windups 130 to assist in winding the air bag 120.

Referring to fig. 2 and 3, the winder 130 includes a fixing ring 131 and a spring wire 132. Wherein the fixing rings 131 are coaxially and fixedly connected to both ends of the air bag 120 in the axial direction. The spring wire 132 is plural and arranged circumferentially along the fixing ring 131. The spring wire 132 is spirally disposed, and has one end fixedly connected to the fixing ring 131 and the other end extending along a spiral line toward an end of the balloon 120 away from the communication pipe 110. During air exhaust, the contraction of the airbag 120 is realized under the action of the retractor 130, so that the volume of the airbag 120 is smaller, and the recovery of the expansion body 100 is facilitated.

Referring to fig. 2 and 3, the spring wires 132 of the two coilers 130 are wound in opposite directions, so that the opposite ends of the bladder 120 are twisted in different directions, thereby forming a plurality of spirally arranged wrinkles on the sidewall of the bladder 120. Under the combined action of the water flow and the folds, the balloon 120 will rotate, thereby causing the pull cable 300 to rotate. The traction cable 300 with a higher density swings and extends to a position far away from the center of the air bag 120, so that the traction cable is more easily clamped in a crack of a closed flow channel.

The implementation principle of the plugging and liquid blocking device in the embodiment is different from that in the embodiment 1: the traction cable 300 is provided with a plurality of traction cables, the density of at least one traction cable 300 is greater than that of the fluid conveyed in the closed flow passage, and the density of at least one traction cable 300 is less than that of the fluid conveyed in the closed flow passage, so that the traction cable 300 is suitable for closed flow passage cracks at different positions, and the possibility that the traction cable 300 is clamped by the cracks is increased.

When exhausting, the air bag 120 is contracted under the action of the retractor 130, so that the volume of the air bag 120 is smaller, and the recovery of the expansion body 100 is more facilitated.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. A shutoff hinders liquid device which characterized in that: including inside inflation body (100) that is the cavity setting, with filling tube (200) and one end fixed connection in the pull cable (300) of inflation body (100) intercommunication of inflation body (100), filling tube (200) are used for the pump intercommunication with the pump sending filler, pull cable (300) are the flexibility and set up to when the inflation body is not aerifyd, pull cable (300) length is greater than its and inflation body (100) between junction and the inflation body (100) between the interval between the lateral wall.

2. An occlusion liquid blocking device according to claim 1, characterized in that: the traction rope (300) is provided in plurality.

3. An occlusion liquid blocking device according to claim 2, characterized in that: at least one of the traction cables (300) has a density greater than a density of the fluid conveyed in the closed flow path.

4. An occlusion liquid blocking device according to claim 2, characterized in that: at least one of the traction cables (300) has a density less than the density of the fluid conveyed in the closed flow path.

5. An occlusion liquid blocking device according to claim 1, characterized in that: the filling pipe (200) or the expansion body (100) is provided with a one-way valve (112), and the one-way conduction direction of the one-way valve (112) is that the filling pipe (200) flows to the expansion body (100).

6. An occlusion liquid blocking device according to claim 5, characterized in that: and a pressure relief valve (101) for exhausting gas to the expansion body (100) is arranged on the filling pipe (200) or the expansion body (100), and the pressure relief valve (101) is positioned at the downstream of the one-way valve (112) in the one-way communication direction.

7. An occlusion liquid blocking device according to claim 1, characterized in that: the filling pipe (200) is detachably connected to the expansion body (100) through a rope breaking valve.

8. An occlusion liquid blocking device according to claim 1, characterized in that: the inflation body (100) comprises a communicating pipe (110) and an air bag (120) sleeved outside the communicating pipe (110), two ends of the air bag (120) are fixedly connected with the communicating pipe (110), an opening (111) communicated with the inside of the air bag (120) is formed in the side wall of the communicating pipe (110), one end of the communicating pipe (110) is closed, the other end of the communicating pipe is fixedly connected with the filling pipe (200), and the communicating pipe (110) and the filling pipe are communicated.

9. An occlusion fluid blocking device, as claimed in claim 8, wherein: the traction rope (300) is fixedly connected with one end of the communicating pipe (110) far away from the filling pipe (200).

10. An occlusion liquid blocking device according to claim 8, characterized in that: gasbag (120) along communicating pipe (110) length direction's both ends fixedly connected with rolling ware (130), rolling ware (130) include coaxial fixed connection in gasbag (120) along communicating pipe (110) length direction's solid fixed ring (131) and circumference fixed connection in spring wire (132) of gasbag (120) tip, spring wire (132) are the spiral setting, and its one end fixed connection in gu fixed ring (131), the other end extends to the one end that communicating pipe (110) were kept away from to gasbag (120) along the spiral line.