阅读说明：本技术 采用热水翻转固化进行非开挖污水管道整体修复的方法 (Method for integrally repairing trenchless sewage pipeline by hot water overturning and curing ) 是由 黄才福 蒋浩 易小萍 赵丰 于 2019-09-30 设计创作，主要内容包括：本发明公开了一种采用热水翻转固化进行非开挖污水管道整体修复的方法,首先对污水管道进行清洗检测,然后将浸满热固性树脂的毡制软管送入清洗干净的待修复管道中去,最后通热水进行固化,采用热水翻转固化工艺,将软管附着到破损的污水管道内壁,其施工不需要开挖,对城市的交通环境没有影响；本发明的施工工艺速度快,能够有效地降低了成本,同时节省了施工工期。(The invention discloses a method for integrally repairing a trenchless sewage pipeline by hot water turnover curing, which comprises the steps of cleaning and detecting the sewage pipeline, sending a felt hose soaked with thermosetting resin into a cleaned pipeline to be repaired, and finally introducing hot water for curing; the construction process of the invention has high speed, can effectively reduce the cost and simultaneously save the construction period.)

1. A method for integrally repairing a trenchless sewage pipeline by hot water turnover curing is characterized by comprising the following steps:

(1) cleaning a pipeline between the two sewage wells;

(2) after cleaning, pumping out water in the pipeline through a water pump;

(3) detecting the cleaned pipeline by adopting a closed-circuit television system, finding out the damaged part of the cleaned pipeline, and judging whether the pipeline meets the repair requirement;

(4) the felt hose soaked with the thermosetting resin is sent into a cleaned pipeline to be repaired, and the method specifically comprises the following steps:

(41) a supporting frame mechanism is built right above the sewage well, a scaffold is arranged on the supporting frame mechanism for an operator to stand, and a cylindrical sleeve opening is arranged on the supporting frame mechanism;

(42) taking out the felt hose soaked with the thermosetting resin from the heat preservation vehicle, wherein the length of the felt hose soaked with the thermosetting resin is slightly larger than that of the original old sewage pipe, and when the felt hose soaked with the thermosetting resin is started, the felt surface is arranged on the inner side, and the opening A and the end B of the hose are closed or tied;

(43) sleeving the end A of the hose on the cylindrical sleeve opening, wherein the felting surface of the end A of the hose is in contact with the outer end surface of the sleeve opening;

(44) inserting the main body part of the hose into the cylindrical sleeve opening, turning over the hose, and exposing the felted surface of the hose out of the lower end of the cylindrical sleeve opening;

(45) introducing high-pressure water from the inner side of the cylindrical sleeve opening, driving the hose to turn over continuously by the high-pressure water, and enabling the hose to enter a sewage pipeline from a sewage well on one side;

(46) continuing to feed high-pressure water, so that the hose continues to move towards the sewage well on the other side in the old pipeline until all the parts except the sleeve opening fixing part are turned over;

(47) the hose is disconnected from the cylindrical sleeve opening, the end A of the disconnected hose is connected with a sealing disc, the end A of the hose is sealed, high-pressure water is continuously introduced into a water inlet on the sealing disc, the hose moves forwards continuously through the high-pressure water until reaching a sewage well on the other side and extends out of a small part in the sewage well, and then the high-pressure water is stopped being introduced;

(5) inserting a hot water pipe from the water inlet of the sealing disc, and inserting the hot water pipe to one side close to the end B;

(6) the hot water pipe is used for supplying hot water, and cold water is discharged from the water outlet of the sealing disc through the water pipe, so that the hose is guaranteed to be spread by water;

(7) detecting the temperature of water in the hose in real time through a temperature sensor extending into the hose on the sealing disc to keep the temperature of the water within a temperature range of 70-80 ℃, and preserving the heat for 10-20 hours to solidify the hose under the condition of high temperature, wherein the felted surface of the hose is attached to the inner wall of the sewage pipe to be repaired;

(8) and disconnecting the end A of the hose from the sealing disc, discharging water in the hose, and cutting off redundant hoses extending into sewage wells on two sides.

2. The plugging device for a storm sewage conduit as claimed in claim 1 wherein: in the step (45), when the hose enters the sewer pipe from the sewer well under the action of the high-pressure water, the hose needs to be pushed into the sewer pipe by workers in the sewer well in an auxiliary mode.

3. The plugging device for a storm sewage conduit as claimed in claim 1 wherein: the thermosetting resin comprises one of polyester resin, epoxy resin or vinyl resin.

4. The plugging device for a storm sewage conduit as claimed in claim 1 wherein: the hose needs to be insulated in an environment below 15 degrees.

Technical Field

The invention relates to a construction process for replacing a sewage pipeline, in particular to a method for integrally repairing a trenchless sewage pipeline by hot water turnover solidification.

Background

Urban rainwater and sewage pipelines relate to urban drainage flood control, if underground rainwater and sewage drainage pipes have problems, drainage is not smooth, flood disasters are likely to be caused if extremely heavy rainstorm occurs, regular inspection and maintenance of the rainwater and sewage pipelines are important, the pipelines need to be replaced or repaired in time if the conditions such as pipeline damage are found, particularly, sewage pipelines are damaged, sewage leakage can be caused, and underground water pollution and river pollution can be caused. It is therefore necessary to replace the damaged leaky sewer piping in a timely manner.

Disclosure of Invention

The invention aims to provide a method for integrally repairing a trenchless sewage pipeline by hot water turnover solidification, which aims to solve the problem that the traditional method for directly excavating and constructing the sewage pipeline in important or complex-terrain areas during maintenance of the sewage pipeline.

In order to achieve the purpose, the invention provides the following technical scheme: a method for integrally repairing a trenchless sewage pipeline by hot water turnover curing comprises the following steps:

(1) cleaning a pipeline between the two sewage wells;

(2) after cleaning, pumping out water in the pipeline through a water pump;

(3) detecting the cleaned pipeline by adopting a closed-circuit television system, finding out the damaged part of the cleaned pipeline, and judging whether the pipeline meets the repair requirement;

(4) the felt hose soaked with the thermosetting resin is sent into a cleaned pipeline to be repaired, and the method specifically comprises the following steps:

(41) a supporting frame mechanism is built right above the sewage well, a scaffold is arranged on the supporting frame mechanism for an operator to stand, and a cylindrical sleeve opening is arranged on the supporting frame mechanism;

(42) taking out the felt hose soaked with the thermosetting resin from the heat preservation vehicle, wherein the length of the felt hose soaked with the thermosetting resin is slightly larger than that of the original old sewage pipe, and when the felt hose soaked with the thermosetting resin is started, the felt surface is arranged on the inner side, and the opening A and the end B of the hose are closed or tied;

(43) sleeving the end A of the hose on the cylindrical sleeve opening, wherein the felting surface of the end A of the hose is in contact with the outer end surface of the sleeve opening;

(44) inserting the main body part of the hose into the cylindrical sleeve opening, turning over the hose, and exposing the felted surface of the hose out of the lower end of the cylindrical sleeve opening;

(45) introducing high-pressure water from the inner side of the cylindrical sleeve opening, driving the hose to turn over continuously by the high-pressure water, and enabling the hose to enter a sewage pipeline from a sewage well on one side;

(46) continuing to feed high-pressure water, so that the hose continues to move towards the sewage well on the other side in the old pipeline until all the parts except the sleeve opening fixing part are turned over;

(47) the hose is disconnected from the cylindrical sleeve opening, the end A of the disconnected hose is connected with a sealing disc, the end A of the hose is sealed, high-pressure water is continuously introduced into a water inlet on the sealing disc, the hose moves forwards continuously through the high-pressure water until reaching a sewage well on the other side and extends out of a small part in the sewage well, and then the high-pressure water is stopped being introduced;

(5) inserting a hot water pipe from the water inlet of the sealing disc, and inserting the hot water pipe to one side close to the end B;

(6) the hot water pipe is used for supplying hot water, and cold water is discharged from the water outlet of the sealing disc through the water pipe, so that the hose is guaranteed to be spread by water;

(7) detecting the temperature of water in the hose in real time through a temperature sensor extending into the hose on the sealing disc to keep the temperature of the water within a temperature range of 70-80 ℃, and preserving the heat for 10-20 hours to solidify the hose under the condition of high temperature, wherein the felted surface of the hose is attached to the inner wall of the sewage pipe to be repaired;

(8) and disconnecting the end A of the hose from the sealing disc, discharging water in the hose, and cutting off redundant hoses extending into sewage wells on two sides.

As an improvement of the invention, in the step (45), when the hose enters the sewer pipe from the sewer well under the action of the high-pressure water, the hose needs to be pushed into the sewer pipe by workers in the sewer well.

As a modification of the present invention, the thermosetting resin includes one of polyester resin, epoxy resin or vinyl resin.

As an improvement of the invention, the hose needs to be insulated in an environment below 15 degrees.

Has the advantages that:

1. the invention adopts the hot water overturning and curing process to attach the hose to the inner wall of the damaged sewage pipeline, and the construction does not need to be excavated, thereby having no influence on the urban traffic environment;

2. the construction process of the invention has high speed, can effectively reduce the cost and save the construction period;

3. the construction process is simple, too many operators are not needed, the sealing effect of the repaired pipeline is good, and the situations of leakage and the like can not occur.

Drawings

FIG. 1 is a schematic structural view of a construction process of the present invention;

FIG. 2 is a schematic structural view of the present invention after the tube is completely placed and heat curing is performed;

FIG. 3 is a schematic structural diagram of the hose inverting process of the present invention;

FIG. 4 is a schematic view of the seal disk of the present invention.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

The embodiment discloses a method for integrally repairing a trenchless sewage pipeline by hot water turnover curing, which comprises the following steps:

(1) cleaning the pipeline between the two sewage wells 3 and 4;

(2) after cleaning, pumping out water in the pipeline through a water pump;

(3) adopt closed circuit television system to detect the pipeline that has cleaned, gather the image of pipeline inner wall through the camera, find out its damaged department to judge whether accord with the restoration requirement, whether have structural damage, if sink, if do not have structural damage, then can carry out next step if crack etc. also can adopt the manual work to detect certainly, the manual work detects and should accord with following requirement:

for the pipeline with the diameter larger than 800mm, the distance of manual detection is not more than 100m at one time. When manual inspection is carried out, the depth of accumulated water in the pipeline is not more than 1/3 of the pipe diameter and not more than 0.5m, the flow velocity of water in the pipeline is not more than 0.3m/s, and when the water in the pipeline is overlarge, measures such as blocking an upstream water inlet or arranging drainage and the like are adopted to reduce the water level in the pipeline. When a diver is used for inspecting the pipeline, the pipe diameter is not less than 1200mm, and the flow velocity is not more than 0.5 m/s. The downhole testing personnel should be in communication with the surface personnel. Underground detection personnel should carry the camera to carry out detailed shooting record to the defect position in the pipeline, and the picture of making a video recording should be clear.

(4) The felt hose soaked with the thermosetting resin is sent into a cleaned pipeline to be repaired, and the method specifically comprises the following steps:

(41) a supporting frame mechanism 1 is built right above the sewage well, a scaffold is arranged on the supporting frame mechanism 1 for an operator to stand, and a cylindrical sleeve opening 5 is arranged on the supporting frame mechanism;

(42) and taking the felt hose 2 soaked with thermosetting resin out of the insulation vehicle, wherein the temperature in the insulation vehicle can not be higher than 15 ℃, the thermosetting resin comprises the felt hose 2 soaked with thermosetting resin in polyester resin, epoxy resin or vinyl resin, and the felt hose 2 can be cured by heating. The length of the felt hose 2 soaked with the thermosetting resin is slightly larger than that of the original old sewage pipe, when the felt hose soaked with the thermosetting resin is started, the felt surface is arranged on the inner side, the A end 21 of the hose 2 is opened, and the B end 22 is closed or tied;

(43) sleeving the end A21 of the hose 2 on the cylindrical sleeve opening, wherein the felting surface of the end A21 of the hose 2 is in contact with the outer end surface of the sleeve opening 5, and the reference is made to fig. 3;

(44) inserting the main body part of the hose 2 into the cylindrical sleeve opening 5, and turning over the hose 2 to expose the felted surface of the hose from the lower end of the cylindrical sleeve opening, as shown in fig. 3;

(45) high-pressure water is introduced from the inner side of the cylindrical sleeve opening 5 and is connected by a high-pressure water gun 6, the high-pressure water drives the hose to continuously turn over, the hose enters the sewage pipeline from the sewage well on one side, and when the hose 2 enters the sewage pipeline from the sewage well 4 under the action of the high-pressure water, the hose needs to turn, and if the hose is not smooth, workers need to assist in pushing the hose into the sewage pipeline in the sewage well;

(46) continuing to feed high-pressure water, so that the hose 2 continues to move towards the sewage well on the other side in the old pipeline until all the hose except the part at the fixed part of the sleeve opening 5 is turned over, wherein the hose is shown in figure 1;

(47) the hose 2 is disconnected from the cylindrical cuff 5, and the A-side end of the disconnected hose is connected to a seal disk 7 for sealing the A-side end 21 of the hose 2, as shown in FIG. 4, the seal disk 7 includes a seal disk body 71, and the seal disk body 71 provided with the water inlet 72 and the water outlet 73 further includes a clamp 75 for fixing the hose, the clamp 75 being divided into two halves and fastened by a bolt 74.

The water inlet 72 on the sealing disc 7 is continuously filled with high-pressure water, the high-pressure water continuously moves forwards until reaching the sewage well 3 on the other side and extends out of a small part in the sewage well 3, and the high-pressure water is stopped being filled;

(5) inserting a hot water pipe from the water inlet 72 of the sealing disc 7 to the side close to the B end 22 of the hose 2;

(6) the hot water pipe is used for leading hot water, and cold water is discharged from the water outlet 73 of the sealing disc 7 through the water pipe, so that the hose 2 is guaranteed to be opened by water;

(7) detecting the temperature of water in the hose 2 in real time through a temperature sensor 8 extending into the hose on a sealing disc 7 to keep the temperature of the water within a temperature range of 70-80 ℃, and preserving the heat for 10-20 hours to solidify the hose under the condition of high temperature, wherein the felting surface of the hose is attached to the inner wall of the sewage pipe to be repaired;

(8) the connection between the end a of the hose 2 and the sealing disc 7 is released, the water in the hose 2 is drained and the excess hose 2 extending into the bilge wells 3, 4 on both sides is cut off.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.