CN109340451B - Installation method of groove type high-density polyethylene super-silent drain pipe - Google Patents

Abstract

A groove type high-density polyethylene ultra-silent drain pipe installation method adopts a groove type high-density polyethylene pipeline, saves materials, has low loss and is quick to install; the hot melting is not needed, the possibility of scalding is avoided, the safety of a human body is greatly guaranteed, and the economic benefit and the social benefit are remarkable. The limitation of the climate of the installation environment is small, the groove type connection has certain flexibility, the axial displacement caused by temperature change can be absorbed, and the engineering quality is ensured.

Description

Installation method of groove type high-density polyethylene super-silent drain pipe

Technical Field

The invention relates to the technical field of water supply pipeline installation, in particular to a groove type high-density polyethylene ultra-silent drain pipe installation method.

Background

In recent years, the high-density polyethylene pipe has the advantages of advanced technology, economy, reasonability, safety, environmental protection, convenience in construction and the like, so that the high-density polyethylene pipe is widely applied to construction of rain and sewage pipelines in various installation projects. But traditional hot melt connection has to operate workman's requirement height, and ambient temperature requires highly, and hot melt ware has scalded defects such as risk to operating personnel.

Disclosure of Invention

The invention provides a mounting method of a groove type high-density polyethylene super-silent drain pipe, which adopts a groove type to mount a high-density polyethylene pipeline, saves materials, has low loss and is quick to mount; the hot melting is not needed, the possibility of scalding is avoided, the safety of a human body is greatly guaranteed, and the economic benefit and the social benefit are remarkable. The limitation of the climate of the installation environment is small, the groove type connection has certain flexibility, the axial displacement caused by temperature change can be absorbed, and the engineering quality is ensured.

In order to solve the above technical problem, an embodiment of the present application provides a trench type high density polyethylene ultra-silent drain pipe installation method, including the following steps:

s1, construction preparation:

determining a bill of materials required by construction according to a design drawing, purchasing appropriate materials according to the project progress, performing self-inspection to be qualified, and checking delivery qualification certificates and inspection reports to be qualified;

s2, positioning of elastic wire

Rechecking and checking the measurement control points on the design drawing by using a level gauge, measuring a starting point, an end point and a secret point on site, and checking the position of the high-density polyethylene pipe joint and the size of a reserved hole;

s3, fixing support

The high-density polyethylene pipeline adopts a special fixed support, an impact electric hammer is used for punching a bearing wall, the fixed support is firmly fixed by using a proper expansion bolt after the levelness and the verticality of the fixed support are adjusted to the design requirements, and the fixed support system is sequentially installed according to the design position;

s4, cutting and blanking

Processing the size of the purchased material on a construction site according to the requirement of a design drawing, reserving 5mm more end loss than the design length when cutting the material for manufacturing a groove;

s5, groove manufacturing

S51, checking whether the special groove cutting machine works normally, and selecting a clamping piece corresponding to the high-density polyethylene pipe needing to be made into the groove;

s52, adjusting a rotating device on the special grooving machine to the corresponding specification of the high-density polyethylene pipe, and fixing the high-density polyethylene pipe on a clamping sheet;

s53, selecting a corresponding blade for the fixed high-density polyethylene pipe, wherein the position of the blade is tightly attached to the outer diameter of the pipe and is 10mm away from the end part; pressing down an equipment starting button, and finishing end face cutting and groove manufacturing in one step;

s6, installing a pipeline

S61, horizontal pipeline installation: according to the size and specification on the design drawing and a pre-installed pipeline bracket, connecting the high-density polyethylene pipes with the cut and manufactured grooves by using an ABS (acrylonitrile butadiene styrene) clamp, and screwing down screws; c-shaped sealing gaskets are arranged at joints of the pipes and the pipe fittings, when the sealing gaskets are arranged, a thin layer of washing liquid serving as a lubricant can be coated on the outer surfaces of the pipelines to facilitate the installation of the C-shaped sealing rings, and finally, the connected high-density polyethylene pipes are hoisted to a prefabricated support by nylon ropes, and the length of the high-density polyethylene pipes in the pre-connection process is not more than 10 m;

s62, when the sliding pipe clamps for fixing the high-density polyethylene pipes are installed on the horizontal pipeline, the distance between the horizontal pipeline and the sliding pipe clamps is 10 times of the outer diameter of the high-density polyethylene pipes and is not more than 1 telescopic joint with the length of 4 m;

s63, mounting a vertical pipe: after the high-density polyethylene pipe is hoisted to a preset position required by design, the high-density polyethylene pipe is immediately fixed by using a sliding pipe clamp, the distance between the pipe clamps is 15 times of the outer diameter of the high-density polyethylene pipe, 1 expansion joint is arranged on each layer of a vertical pipe, the vertical pipe is bound by using a plastic bag in time to be plugged, and a protective sleeve is arranged at a reserved hole when the pipe penetrates through a floor and a roof node;

s64, installing a buried pipe: excavating a trench of the buried pipe according to design requirements, paving 8-10cm thick cushion layer fine sand, directly backfilling, layering and tamping the buried pipe with the backfilling thickness of more than 70cm after the buried pipe is installed, attaching a layer of galvanized protection pipe when the buried pipe is shallow, and gradually amplifying the pipe diameter when a high-density polyethylene drain pipe pipeline extends out of a user to ensure smooth and rapid drainage;

s7, performing irrigation and water passing experiments according to design requirements and regulations of relevant standard specifications, checking whether leakage exists at each connecting piece, if an unqualified part exists, detaching and re-installing the unreasonable part until the requirement is met, and finally performing the water passing experiments, wherein the water passing rate reaches 100% and delivery and acceptance.

One or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages:

the groove type high-density polyethylene pipeline is adopted, so that the material is saved, the loss is low, and the installation is rapid; the hot melting is not needed, the possibility of scalding is avoided, the safety of a human body is greatly guaranteed, and the economic benefit and the social benefit are remarkable. The limitation of the climate of the installation environment is small, the groove type connection has certain flexibility, the axial displacement caused by temperature change can be absorbed, and the engineering quality is ensured.

Detailed Description

The invention provides a mounting method of a groove type high-density polyethylene super-silent drain pipe, which adopts a groove type to mount a high-density polyethylene pipeline, saves materials, has low loss and is quick to mount; the hot melting is not needed, the possibility of scalding is avoided, the safety of a human body is greatly guaranteed, and the economic benefit and the social benefit are remarkable. The limitation of the climate of the installation environment is small, the groove type connection has certain flexibility, the axial displacement caused by temperature change can be absorbed, and the engineering quality is ensured.

In order to better understand the technical solutions, the following detailed descriptions of the technical solutions are provided in specific embodiments.

The installation method of the groove type high-density polyethylene ultra-silent drain pipe comprises the following steps:

s1, construction preparation:

determining a bill of materials required by construction according to a design drawing, purchasing appropriate materials according to the project progress, performing self-inspection to be qualified, and checking delivery qualification certificates and inspection reports to be qualified;

s2, positioning of elastic wire

Rechecking and checking the measurement control points on the design drawing by using a level gauge, measuring a starting point, an end point and a secret point on site, and checking the position of the high-density polyethylene pipe joint and the size of a reserved hole;

s3, fixing support

The high-density polyethylene pipeline adopts a special fixed support, an impact electric hammer is used for punching a bearing wall, the fixed support is firmly fixed by using a proper expansion bolt after the levelness and the verticality of the fixed support are adjusted to the design requirements, and the fixed support system is sequentially installed according to the design position;

s4, cutting and blanking

Processing the size of the purchased material on a construction site according to the requirement of a design drawing, reserving 5mm more end loss than the design length when cutting the material for manufacturing a groove;

s5, groove manufacturing

S51, checking whether the special groove cutting machine works normally, and selecting a clamping piece corresponding to the high-density polyethylene pipe needing to be made into the groove;

s52, adjusting a rotating device on the special grooving machine to the corresponding specification of the high-density polyethylene pipe, and fixing the high-density polyethylene pipe on a clamping sheet;

s53, selecting a corresponding blade for the fixed high-density polyethylene pipe, wherein the position of the blade is tightly attached to the outer diameter of the pipe and is 10mm away from the end part; pressing down an equipment starting button, and finishing end face cutting and groove manufacturing in one step;

s6, installing a pipeline

S61, horizontal pipeline installation: according to the size and specification on the design drawing and a pre-installed pipeline bracket, connecting the high-density polyethylene pipes with the cut and manufactured grooves by using an ABS (acrylonitrile butadiene styrene) clamp, and screwing down screws; c-shaped sealing gaskets are arranged at joints of the pipes and the pipe fittings, when the sealing gaskets are arranged, a thin layer of washing liquid serving as a lubricant can be coated on the outer surfaces of the pipelines to facilitate the installation of the C-shaped sealing rings, and finally, the connected high-density polyethylene pipes are hoisted to a prefabricated support by nylon ropes, and the length of the high-density polyethylene pipes in the pre-connection process is not more than 10 m;

s62, when the sliding pipe clamps for fixing the high-density polyethylene pipes are installed on the horizontal pipeline, the distance between the horizontal pipeline and the sliding pipe clamps is 10 times of the outer diameter of the high-density polyethylene pipes and is not more than 1 telescopic joint with the length of 4 m;

s63, mounting a vertical pipe: after the high-density polyethylene pipe is hoisted to a preset position required by design, the high-density polyethylene pipe is immediately fixed by using a sliding pipe clamp, the distance between the pipe clamps is 15 times of the outer diameter of the high-density polyethylene pipe, 1 expansion joint is arranged on each layer of a vertical pipe, the vertical pipe is bound by using a plastic bag in time to be plugged, and a protective sleeve is arranged at a reserved hole when the pipe penetrates through a floor and a roof node;

s64, installing a buried pipe: excavating a trench of the buried pipe according to design requirements, paving 8-10cm thick cushion layer fine sand, directly backfilling, layering and tamping the buried pipe with the backfilling thickness of more than 70cm after the buried pipe is installed, attaching a layer of galvanized protection pipe when the buried pipe is shallow, and gradually amplifying the pipe diameter when a high-density polyethylene drain pipe pipeline extends out of a user to ensure smooth and rapid drainage;

s7, performing irrigation and water passing experiments according to design requirements and regulations of relevant standard specifications, checking whether leakage exists at each connecting piece, if an unqualified part exists, detaching and re-installing the unreasonable part until the requirement is met, and finally performing the water passing experiments, wherein the water passing rate reaches 100% and delivery and acceptance.

Quality control measures

The method comprises the steps of completing the deepened design and the review of a drawing before construction, analyzing and compiling a construction scheme for a construction process, coordinating with a design unit to solve the problem when the drawing conflicts with a site, and notifying design change if the drawing is modified. And carrying out technical cross-over on the construction team leader, and well carrying out cross-over and rechecking work of each procedure.

The approach material is qualified and meets the requirements in the table I.

Meter-pipe quality experiment record

Various quality controls are made in the installation process

1, carrying out technical background crossing on a construction team leader to ensure that the construction quality meets the national standard specification; the operator must be trained and certified.

2 the pipeline is isolated from the heat source when being installed, so that the external part of the pipeline is prevented from being heated to influence the installation quality.

3 the end face of the pipeline must be smooth when the pipeline group is butted, the groove manufacture meets the standard requirements, the C-shaped sealing gasket is added during the ABS clamping connection, and the screw is screwed up to ensure that the connection quality meets the standard requirements of pipeline installation standards.

And 4, paying off and positioning before mounting the fixed support, and checking and rechecking the overall verticality and the drainage gradient of the vertical pipe and the horizontal pipe after the pipeline is mounted.

Safety measures

The operators who participate in the construction must be familiar with the operating rules and carry out technical and safety trades.

Safety signs and warning boards are arranged in areas, adjacent edge openings and the like of the construction site belonging to the construction category.

When the blade is switched during the groove manufacturing, the safety needs to be paid attention, and protective gloves are arranged.

The temporary electricity utilization is strictly executed according to the relevant regulations of the temporary electricity utilization safety technical Specification on construction sites JGJ46, the installation, maintenance, removal and the like of the temporary electricity are required to be completed by professional electricians, and non-electricians forbid any electrical operation.

The special trench machine is checked whether to be intact under the condition of power failure and the construction machine is operated strictly according to the use instruction, a good grounding protection device is required to be arranged, a leakage protection switch is arranged, and illegal operation is strictly prohibited.

Environmental protection measure

The materials entering the field are placed in order by classification, protective measures are taken, and the materials are placed in a designated place after being packaged and dismantled, so that the environment is prevented from being polluted.

And garbage generated on the construction site is cleaned in time and treated uniformly.

And (3) a construction environment sanitation management system is established, and laws, regulations and regulations related to environmental protection issued by national and local governments are strictly followed in the engineering construction process. The construction site is reasonably arranged, the construction is standardized, and the construction site is neat and civilized.

Benefit analysis

Taking 6500m of a high-density polyethylene ultra-silent drain pipe for the engineering construction of a hospital with a certain disease as an example, the construction cost is compared and analyzed by using the construction method and the hot-melting type connecting method, and the table II shows.

Economic benefit analysis meter

Unit: yuan

Through the analysis, 6500m high density polyethylene ultra-silent drain pipe is installed, and compared with the construction cost of the hot-melt type connecting method, the construction method can save the cost by 214000 yuan and the construction period by 30 (150 plus 120) days.

Although the present invention has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims (1)

1. A groove type high-density polyethylene ultra-silent drain pipe installation method is characterized by comprising the following steps:

s1, construction preparation:

determining a bill of materials required by construction according to a design drawing, purchasing appropriate materials according to the project progress, performing self-inspection to be qualified, and checking delivery qualification certificates and inspection reports to be qualified;

s2, positioning of elastic wire

Rechecking and checking the measurement control points on the design drawing by using a level gauge, measuring a starting point, an end point and a secret point on site, and checking the position of the high-density polyethylene pipe joint and the size of a reserved hole;

s3, fixing support

The high-density polyethylene pipeline adopts a special fixed support, an impact electric hammer is used for punching a bearing wall, the fixed support is firmly fixed by using a proper expansion bolt after the levelness and the verticality of the fixed support are adjusted to the design requirements, and the fixed support system is sequentially installed according to the design position;

s4, cutting and blanking

Processing the size of the purchased material on a construction site according to the requirement of a design drawing, reserving 5mm more end loss than the design length when cutting the material for manufacturing a groove;

s5, groove manufacturing

S51, checking whether the special groove cutting machine works normally, and selecting a clamping piece corresponding to the high-density polyethylene pipe needing to be made into the groove;

s52, adjusting a rotating device on the special grooving machine to the corresponding specification of the high-density polyethylene pipe, and fixing the high-density polyethylene pipe on a clamping sheet;

s53, selecting a corresponding blade for the fixed high-density polyethylene pipe, wherein the position of the blade is tightly attached to the outer diameter of the pipe and is 10mm away from the end part; pressing down an equipment starting button, and finishing end face cutting and groove manufacturing in one step;

s6, installing a pipeline

S61, horizontal pipeline installation: according to the size and specification on the design drawing and a pre-installed pipeline bracket, connecting the high-density polyethylene pipes with the cut and manufactured grooves by using an ABS (acrylonitrile butadiene styrene) clamp, and screwing down screws; c-shaped sealing gaskets are arranged at joints of the pipes and the pipe fittings, when the sealing gaskets are arranged, a thin layer of washing liquid serving as a lubricant can be coated on the outer surfaces of the pipelines to facilitate the installation of the C-shaped sealing rings, and finally, the connected high-density polyethylene pipes are hoisted to a prefabricated support by nylon ropes, and the length of the high-density polyethylene pipes in the pre-connection process is not more than 10 m;

s62, when the sliding pipe clamps for fixing the high-density polyethylene pipes are installed on the horizontal pipeline, the distance between the horizontal pipeline and the sliding pipe clamps is 10 times of the outer diameter of the high-density polyethylene pipes and is not more than 1 telescopic joint with the length of 4 m;

s63, mounting a vertical pipe: after the high-density polyethylene pipe is hoisted to a preset position required by design, the high-density polyethylene pipe is immediately fixed by using a sliding pipe clamp, the distance between the pipe clamps is 15 times of the outer diameter of the high-density polyethylene pipe, 1 expansion joint is arranged on each layer of a vertical pipe, the vertical pipe is bound by using a plastic bag in time to be plugged, and a protective sleeve is arranged at a reserved hole when the pipe penetrates through a floor and a roof node;

s64, installing a buried pipe: excavating a trench of the buried pipe according to design requirements, paving 8-10cm thick cushion layer fine sand, directly backfilling, layering and tamping the buried pipe with the backfilling thickness of more than 70cm after the buried pipe is installed, attaching a layer of galvanized protection pipe when the buried pipe is shallow, and gradually amplifying the pipe diameter when a high-density polyethylene drain pipe pipeline extends out of a user to ensure smooth and rapid drainage;

s7, performing irrigation and water passing experiments according to design requirements and regulations of relevant standard specifications, checking whether leakage exists at each connecting piece, if an unqualified part exists, detaching and re-installing the unreasonable part until the requirement is met, and finally performing the water passing experiments, wherein the water passing rate reaches 100% and delivery and acceptance.