CN210567572U

CN210567572U - Underground pipeline air tightness checking device

Info

Publication number: CN210567572U
Application number: CN201921092247.5U
Authority: CN
Inventors: 李书闯; 郭峰; 王超
Original assignee: MCC Tiangong Group Tianjin Corp Ltd
Current assignee: MCC Tiangong Group Tianjin Corp Ltd
Priority date: 2019-07-12
Filing date: 2019-07-12
Publication date: 2020-05-19
Anticipated expiration: 2029-07-12

Abstract

The utility model provides an underground pipeline air tightness checking device, which is arranged in a check well between adjacent branch pipes and comprises two sets of check components, wherein each set of check component comprises a sealing element and a water diversion element which are symmetrically arranged at two ends of each branch pipe, one end of each sealing element is embedded in the inner wall of one end of each branch pipe, the other end of each sealing element is far away from the suspended setting of the end surface of each branch pipe, and the length of the sealing element embedded in the inner wall of each branch pipe is not less than the suspended setting length of the end surface; one end of the water diversion part penetrates through the sealing part and is arranged in the branch pipe, the other end of the water diversion part is far away from the sealing part and is arranged vertically upwards, the length of the water diversion part arranged in the branch pipe is longer than that of the sealing part arranged in the branch pipe, and the extension length of the water diversion part arranged on the end face of the branch pipe is longer than that of the sealing part arranged on the end face of the branch pipe; the upper part of the water diversion part is also provided with a floating scale. The utility model discloses inspection device practicality is strong, and safe and reliable guarantees construction quality for the construction progress reduces construction cost.

Description

Underground pipeline air tightness checking device

Technical Field

The utility model belongs to the technical field of the experimental equipment of pipeline installation is examined, especially, relate to an underground pipeline gas tightness inspection device.

Background

At present, no matter municipal administration or industrial drainage pipe mostly adopt the formula of surely flowing underground piping certainly, drainage pipe installation is accomplished or leak hunting later all will carry out inspection device, traditional inspection device is behind inspection device pipeline both ends with the brickwork concrete shutoff, to being annotated water and then observe the water level change in order to confirm whether the pipeline leaks by the test section pipeline, this kind of test method process is loaded down with trivial details, the shutoff is with wasting time and energy with big costs, it is difficult to confirm the seepage position when the seepage takes place, if do the experiment between per two wells, correspondingly not only work load sharply increases but also whole inspection device water consumption is also very big, the wasting of resources is serious, production efficiency is lower, manufacturing cost increases.

Disclosure of Invention

The utility model aims at the problem that exists among the above-mentioned prior art, the purpose provides an underground pipeline gas tightness inspection device, has solved not only that the process is numerous and diverse among the prior art, and construction cost is big, and is consuming time hard, can't confirm in addition specifically reveal the position, the technical problem of fixed point investigation in time.

The above technical purpose of the utility model is realized through following technical scheme:

an underground pipeline air tightness inspection device comprises a plurality of branch pipes which are horizontally arranged in parallel, and an inspection well is arranged between every two adjacent branch pipes, and is characterized in that the inspection device is arranged in the inspection well and comprises two sets of inspection components, each set of inspection component comprises a sealing element and a water diversion element which are symmetrically arranged at two ends of each branch pipe, one end of each sealing element is embedded in the inner wall of one end of each branch pipe, the other end of each sealing element is arranged far away from the end face of each branch pipe in a hanging manner, and the length of each sealing element embedded in the inner wall of each branch pipe is not less than the length of each sealing element far away from the end face; one end of the water diversion part penetrates through the sealing part and is arranged in the branch pipe, the other end of the water diversion part is far away from the sealing part and is arranged vertically upwards, the length of the water diversion part arranged in the branch pipe is longer than that of the sealing part arranged in the branch pipe, the length of the water diversion part arranged on the end face of the branch pipe is longer than that of the sealing part arranged on the end face of the branch pipe, and the water diversion part is positioned at the axial center of the sealing part; the upper part of the water diversion part is also provided with a floating scale.

Further, the sealing element is a rubber air bag, and the shape of the air bag is matched with the inner diameter of the branch pipe.

Furthermore, the air bags are all provided with an inflation core, and the inflation cores are positioned at the lower end parts of the air bags.

Further, the inflatable core is positioned below the water diversion piece.

Furthermore, the diversion spare includes first leading water pipe, return bend and second leading water pipe, first leading water pipe with the second leading water pipe passes through the return bend is connected.

Furthermore, first leading water pipe level sets up and runs through the sealing member, first leading water pipe one end is kept away from the sealing member is arranged in the unsettled setting of one end in the branch pipe, the other end with return bend one end intercommunication.

Furthermore, one end of the second water conduit is communicated with the other end of the bent pipe, and the other end of the second water conduit is vertically suspended upwards.

Furthermore, the float scale is arranged at one end, far away from the first water conduit, of the second water conduit.

Furthermore, a three-way valve is arranged on one side, close to the bent pipe, of the first water conduit.

Further, the inner diameters of the first water conduit and the second water conduit are the same.

Compared with the prior art, the utility model discloses an inspection device not only can be quick accomplish the gas tightness inspection of a certain branch pipe in the pipeline, but also can accelerate the construction progress, improve the efficiency of construction. The used water of first section of branch pipe can continue to second section of branch pipe recycle, and the used inspection subassembly of each section of branch pipe all can be utilized repeatedly and circularly simultaneously, resources are saved and labour saving and time saving, and the practicality is strong, and safe and reliable not only can guarantee construction quality but also can accelerate the construction progress, and then reduces construction cost.

Drawings

Fig. 1 is a schematic structural view of an underground pipe airtightness inspection apparatus according to an embodiment of the present invention;

fig. 2 is a schematic structural view of an airtightness inspection apparatus for a first branch pipe according to an embodiment of the present invention;

FIG. 3 is a schematic view of the process of pouring water from the first branch into the second branch according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of an air-tightness inspection device for a second branch pipe according to an embodiment of the present invention.

In the figure:

10. sealing member 11, airbag 12, and airbag

13. Air bag 14, air bag 20 and water diversion member

21. Water conduit 211, first water conduit 212, second water conduit

213. Elbow pipe 22, water conduit 23, water conduit

231. First water conduit 232, second water conduit 233 and elbow

31. Three-way valve 32, three-way valve 33, and three-way valve

34. Three-way valve 41, inflation core 42 and inflation core

43. Inflating core 44, inflating core 51, float scale

52. Float scale 53, float scale 54, float scale

60. Pipe 61, branch pipe 62, branch pipe

71. Inspection well 72, inspection well 73, inspection well

80. Water pump

Detailed Description

The invention will be further explained with reference to the following examples and drawings:

an underground pipeline air tightness inspection device is disclosed, as shown in fig. 1-4, an underground pipeline 60 comprises a plurality of branch pipes horizontally arranged in parallel, in this embodiment, the pipeline 60 comprises two branch pipes, namely a branch pipe 61 and a branch pipe 62, an inspection well is arranged between the adjacent branch pipe 61 and the branch pipe 62, that is, the inspection well is arranged at both ends of any branch pipe, as shown in fig. 1, the inspection well 71 and the inspection well 72 are respectively arranged at both ends of the branch pipe 61, the inspection well 72 is further communicated with one end of the branch pipe 62, and the inspection well 73 is arranged at the other end of the branch pipe 62. The inspection device is placed in an inspection well, and specifically comprises two sets of inspection modules, namely one set of inspection module at both ends of the branch 61 and the other set of inspection module at both ends of the branch 62. Wherein, every set of inspection subassembly all includes that the symmetry sets up sealing member 10 and the drainage 20 at the branch pipe both ends, and the one end of sealing member 10 is embedded in the one end inner wall of branch pipe, and the unsettled setting of branch pipe terminal surface is kept away from to the other end of sealing member 10, and sealing member 10 is embedded in the length H1 of branch pipe inner wall not less than its length H2 of keeping away from the unsettled setting of branch pipe terminal surface. One end of the water diversion element 20 penetrates through the sealing element 10 and is arranged in the branch pipe, the other end of the water diversion element 20 is far away from the sealing element 10 and is arranged vertically upwards, the length H3 of the water diversion element 20 arranged in the branch pipe is larger than the length H1 of the sealing element 10 arranged in the branch pipe, the length H4 of the water diversion element 20 arranged on the end face of the branch pipe is larger than the length H2 of the sealing element 10 arranged on the end face of the branch pipe, and the water diversion element 20 is arranged at the axial center of the sealing element. The upper part of the water diversion member 20 is also provided with a floating scale, and the floating scale 5 is used for observing liquid level change and checking whether the pipeline 6 has air leakage or not.

As shown in fig. 2, each set of inspection units in the present embodiment will be described in detail by taking the inspection units disposed at both ends of the branch pipe 61 as an example. Specifically, the sealing member 10 is a rubber airbag, the airbag 11 and the airbag 12 are symmetrically arranged at two ends of the branch pipe 61 respectively, and the positions, the types and the sizes of the airbags are the same, and the appearance of the airbag 11 after being inflated and expanded is matched with the inner diameter of the branch pipe 61 and is tightly attached to the inner diameter of the branch pipe 61, so that the air tightness in the branch pipe 61 is ensured. The one end of gasbag 11 is embedded in the inner wall of pipeline 61, and the pipeline 61 terminal surface is kept away from to the other end of gasbag 11 and is extended unsettled the setting, and the length H1 that gasbag 11 is embedded in the pipeline 61 inner wall is not less than the length H2 of keeping away from the pipeline 61 terminal surface and extending unsettled the setting, guarantees the steadiness of gasbag 11 installation when the purpose guarantees that gasbag 11 closely laminates with pipeline 61 completely.

Further, the air bags 11 and 12 arranged at the two ends of the pipeline 61 are respectively provided with the same type of inflation core, namely the inflation core 41 and the inflation core 42, the inflation cores are positioned at the lower end parts of the air bags, the inflation cores can monitor the inflation pressure inside the air bags in real time, and the inflation is stopped in time, so that the air bags are prevented from being inflated and exploded. Preferably, the inflatable core is located below the water diversion member 20 to facilitate the operation and observation of the pressure values on the inflatable core by personnel.

Furthermore, the water guide member 20 is a water guide pipe 21, and comprises a first water guide pipe 211, a second water guide pipe 212 and an elbow pipe 213, wherein the first water guide pipe 211 is communicated with the second water guide pipe 212 through the elbow pipe 213, and the first water guide pipe 211, the elbow pipe 213 and the second water guide pipe 212 form the water guide pipe 21 with a right-angle structure. Specifically, the first water conduit 211 is horizontally arranged and penetrates through the axial center of the airbag 11, one end of the first water conduit 211 is far away from the airbag 11 and is arranged in the pipeline 61, and one end of the first water conduit 211 is arranged in the pipeline 61 in a suspended mode, namely the length H3 of the first water conduit 211 arranged in the pipeline 61 is larger than the length H1 of the airbag 11 arranged in the pipeline 61, the length H4 of the first water conduit 211 arranged on the extension of the end face of the branch pipe 61 is larger than the length H2 of the airbag 11 arranged on the extension of the end face of the branch pipe 61, the structure can solve the problem that the poured water is blocked when entering the branch pipe, prevent the water from whirling or flowing back in the sealing element 10, and enable the water to. The other end of the first water conduit 211 is communicated with one end of the bent pipe 213, one end of the second water conduit 212 is communicated with the other end of the bent pipe 213, the other end of the second water conduit 212 is vertically suspended upwards, and the inner diameters of the first water conduit 211 and the second water conduit 212 are the same. Other fixing members may be used to fix the second penstock 212 (not shown), which is not important here and is omitted here.

Furthermore, the float scale 51 is disposed at the end of the second conduit 212 away from the first conduit 211, and correspondingly, the float scale 52 is disposed at the upper end of the conduit 22 at the other side of the branch pipe 61, so that the operator can select which side to start the inspection according to actual needs.

Further, a three-way valve is provided at each of both ends of the branch pipe 61, at a side of the first water conduit adjacent to the bent pipe, and specifically, a three-way valve 31 and a three-way valve 32 are provided at the water conduit 21 and the water conduit 22, respectively, for controlling the speed and flow rate during irrigation.

The utility model discloses an inspection device is one set of independent complete structure, and the transitional coupling part of branch pipe 61 and leading water pipe 21, leading water pipe 22 not only can be regarded as in the setting of rubber gasbag 11, gasbag 12, but also can be used to the sealed of pipeline 61. The air bags 11 and 12 are respectively inflated through the independently arranged

inflation cores

41 and 42, the pressure of the air bags 11 and 12 can be respectively controlled according to the

inflation cores

41 and 42, the stability of the pressure of the air bags 11 and 12 is ensured, air leakage or water leakage at the air bags 11 and 12 is prevented, and the air bags 11 and 12 are tightly attached to the inner wall of the pipeline 61. The three-way valve 31 and the three-way valve 32 can be used for controlling the speed and flow rate of filling or draining water and preventing water in the pipeline 61 from flowing back and overflowing. Water is poured into the pipeline 61 through the water conduit 21 or the water conduit 22 which are integrally communicated, and the change of the water level and the liquid level is observed through the floating scale 51 or the floating scale 52, so that whether air leakage occurs or not can be judged according to the scale size on the floating scale 51 or the floating scale 52 and the change amplitude of the water level. Overall structure reasonable in design, simple structure and easily operation, no matter be the installation or dismantle all very convenient, and the cost is also not high, can in time judge whether gas leakage, swift and safety of pipeline 61.

The inspection assemblies in the two ends of the branch pipe 62 are the same as those in the branch pipe 61 and will not be described in detail.

A method of using an underground pipe air-tightness inspection device comprising an inspection device as claimed in any preceding claim, the steps comprising:

s1, installing a set of inspection assemblies at both ends of the branch pipe 61 located at the first section.

S11, the seal 10 and the water guide 20 are sequentially installed at one end of the branch pipe 61.

Specifically, as shown in fig. 1-2, one end of the airbag 11 is disposed inside one end of the branch pipe 61, the other end of the airbag 11 is disposed outside the branch pipe 61 and suspended, and the length H1 of the airbag 11 embedded in the inner wall of the branch pipe 61 is not less than the length H2 of the airbag which is extended and suspended away from the end surface of the branch pipe 61.

One end of the first water conduit 211 is inserted into the branch pipe 61 from the axial center of the airbag 11 and penetrates through the airbag 11, the other end of the first water conduit 211 is arranged in a suspended manner away from the outer end face of the airbag 11, the length H3 of the first water conduit 211 arranged in the branch pipe 61 is larger than the length H1 of the airbag 11 arranged in the branch pipe 61, and the end face extension length H4 of the first water conduit 211 arranged in the branch pipe 61 is larger than the end face extension length H2 of the airbag 11 arranged in the branch pipe 61.

The air bag 11 is inflated by the inflating core 41, and the air bag 11 is completely attached to the inner wall of the branch pipe 61. And then the second water conduit 212 is communicated with the first water conduit 211 through the bent pipe 213, the second water conduit 212 is vertically arranged, and a three-way valve 31 is fixedly arranged on one side of the first water conduit 211 close to the bent pipe 213, and the three-way valve 31 is opened.

S12: the step S11 is repeated to install the sealing member 10 and the water guide member 20 at the other end of the branch pipe 61, which will not be described in detail herein.

S2, the branch pipe 61 is checked for airtightness.

S21: water is poured into the branch pipe 61, and the height of the water level in the second water guide pipes on two sides of the branch pipe 61 is ensured to exceed the diameter height of the branch pipe 61.

Specifically, the three-way valve 31 and the three-way valve 41 at the two ends of the branch pipe 61 are opened to ensure the water conduit 21 and the water conduit 22 to be unblocked, and the arrangement is designed to ensure that air in the branch pipe 61 can be discharged along with the three-way valve and the water conduit which are open at the other side while water is poured from the water conduit at one side of the branch pipe 61, so that the air tightness in the branch pipe 61 can be ensured. The water can be filled into the branch pipes 61 through the second water guide pipes at either end of the branch pipes 61, the liquid level of the water level in each second water guide pipe exceeds the diameter height of the branch pipe 61, the water in the branch pipe 61 needs to exceed more than half of the cross section of the branch pipe 61 to be filled into the second water guide pipes, namely, the inspection can be started without completely filling the water in the branch pipe 61, the

water guide pipes

21 and 22 can be ensured to be filled with the water, and the water level change can be conveniently observed through the height in the second water guide pipes, so that the accuracy of the air tightness inspection of the branch pipes 61 can be ensured.

Then, the three-way valve at any end of the branch pipe 61 is closed, the three-way valve at the other end of the branch pipe 61 is opened, the pressure of each air bag is ensured to be within a certain range through the inflation core, and the specific pressure value is determined according to the diameter of the pipeline 6 and the size of the air bag 1, which is not limited in detail herein. In the present embodiment, the three-way valve 32 is closed and the three-way valve 31 is opened.

S22, the float 51 is placed on the surface of the water in the second conduit 212, and the change in the scale of the float 51 is observed to determine whether or not the branch pipe 61 leaks water. That is, the float gauge 51 is placed on the water level in the second water conduit 212 where one end of the opened three-way valve 31 is located, and the change in the scale of the float gauge 51 is observed to determine whether or not the branch pipe leaks water.

S3, repeating steps S11 and S12, and installing another set of inspection assembly at both ends of the second branch pipe 62, which will not be described in detail herein.

S4, the branch pipe 62 is checked for airtightness.

S41, in the inspection well 72, the water in the branch pipe 61 is introduced into the branch pipe 62 by the water pump 80, and the liquid level height of the water level in the second water introducing pipes on two sides of the branch pipe 62 is ensured to exceed the diameter height of the branch pipe 62.

Specifically, as shown in fig. 3, the three-way valve 31 is closed, the three-way valve 32, the three-way valve 33 and the three-way valve 34 are opened in sequence, the water conduit 22 is communicated with the water conduit 23 through a hose by a water pump 80, water in the branch pipe 61 is discharged into the branch pipe 62, and therefore the water can be recycled, and resources are saved. After pumping and filling, if the water level in the branch pipe 62 can not reach the requirement, water can be pumped from the outside to the branch pipe 62 through the water conduit 23 or the water conduit 24 for continuous irrigation, and the water level in each second water conduit arranged at the two sides of the branch pipe 62 is ensured to exceed the diameter height of the branch pipe 62, as shown in fig. 4.

In this embodiment, the three-way valve 34 at one end of the branch pipe 62 is closed again and the three-way valve 33 at the other end is opened, and the pressure of the airbag 13 and the pressure of the airbag 14 are respectively ensured to be within a certain range by the inflating

cores

43 and 44.

S42, placing the float scale 53 on the water surface in the second water conduit 232 of the branch pipe 62, observing the scale change of the float scale 53 to judge whether the branch pipe 62 leaks water.

The inspection components on both sides of the branch pipe 61 can be removed while testing the branch pipe 62, and the branch pipe of the next section is mounted and reused for air tightness inspection. The structure is simple to match, easy to control, high in practicability in the pipeline construction process, suitable for popularization, and capable of judging whether air leakage occurs or not according to the scale size on the floating ruler and the change range of the water level; meanwhile, the integrity of the air bag and the air tightness between the air bag and the branch pipe can be judged according to the change of the pressure value of the air bag in the inflatable core.

This technical scheme has following advantage and beneficial effect:

The embodiments of the present invention have been described in detail, but the description is only for the preferred embodiments of the present invention and should not be construed as limiting the scope of the present invention. All the equivalent changes and improvements made according to the application scope of the present invention should still fall within the patent coverage of the present invention.

Claims

1. An underground pipeline air tightness inspection device comprises a plurality of branch pipes which are horizontally arranged in parallel, and an inspection well is arranged between every two adjacent branch pipes, and is characterized in that the inspection device is arranged in the inspection well and comprises two sets of inspection components, each set of inspection component comprises a sealing element and a water diversion element which are symmetrically arranged at two ends of each branch pipe, one end of each sealing element is embedded in the inner wall of one end of each branch pipe, the other end of each sealing element is arranged far away from the end face of each branch pipe in a hanging manner, and the length of each sealing element embedded in the inner wall of each branch pipe is not less than the length of each sealing element far away from the end face of; one end of the water diversion part penetrates through the sealing part and is arranged in the branch pipe, the other end of the water diversion part is far away from the sealing part and is arranged vertically upwards, the length of the water diversion part arranged in the branch pipe is longer than that of the sealing part arranged in the branch pipe, the length of the water diversion part arranged on the end face of the branch pipe is longer than that of the sealing part arranged on the end face of the branch pipe, and the water diversion part is positioned at the axial center of the sealing part; the upper part of the water diversion part is also provided with a floating scale.

2. The apparatus of claim 1, wherein the sealing member is a rubber bladder, and the shape of the bladder is adapted to the inner diameter of the branch pipe.

3. The apparatus of claim 2, wherein each of the air cells is provided with an inflatable core, and the inflatable core is located at a lower end of the air cell.

4. The apparatus of claim 3, wherein the inflatable core is located below the water diversion member.

5. The underground pipe airtightness inspection apparatus according to any one of claims 1 to 4, wherein the water diversion member includes a first water conduit, an elbow pipe, and a second water conduit, and the first water conduit and the second water conduit are connected by the elbow pipe.

6. The device of claim 5, wherein the first conduit is horizontally disposed and extends through the sealing member, and is disposed in the branch pipe at an end remote from the sealing member, and is suspended at an end thereof, and is communicated with the elbow pipe at an end thereof.

7. The underground pipe airtightness inspection device according to claim 6, wherein one end of the second water conduit is communicated with the other end of the bent pipe, and the other end of the second water conduit is vertically suspended upward.

8. The apparatus of claim 7, wherein the float scale is disposed at an end of the second penstock remote from the first penstock.

9. The apparatus of claim 8, wherein a three-way valve is provided on a side of the first penstock adjacent to the elbow.

10. The underground pipe air tightness inspection device of claim 9, wherein the first penstock and the second penstock have the same inner diameter.