CN111720651A

CN111720651A - Method for controlling frost crack of pipeline joint by using three-way combination

Info

Publication number: CN111720651A
Application number: CN202010634687.XA
Authority: CN
Inventors: 姜兆双; 李建辉; 张辉; 刘金山
Original assignee: Beijing Shougang Construction Group Co Ltd
Current assignee: Beijing Shougang Construction Group Co Ltd
Priority date: 2020-07-04
Filing date: 2020-07-04
Publication date: 2020-09-29

Abstract

A method for controlling frost crack of a pipeline joint by using a three-way combination belongs to the technical field of temporary water pipe anti-freezing construction in winter. The plastic bottle above the tee joint retracts and contracts by the negative pressure generated by water backflow after the control power supply is cut off, the stored water at the position of the water outlet throttle of the pipeline is squeezed by the air pressure generated by the plastic bottle contraction, and the frost crack of the water outlet control throttle is avoided. The plastic bottle water outlet valve has the advantages that the plastic bottle water outlet valve is simple and easy to operate, water stored at the position of the water outlet valve is squeezed out by utilizing air pressure generated by retraction and tightening of the plastic bottle, frost cracking of the water outlet valve is avoided, manpower and material resources are saved, and construction cost is greatly reduced.

Description

Method for controlling frost crack of pipeline joint by using three-way combination

Technical Field

The invention belongs to the technical field of anti-freezing construction of temporary water pipes in winter, and particularly provides a method for controlling frost cracking of a pipeline joint by using a tee joint combination.

Background

During construction in winter, the temporary water-using water pipe is generally insulated and anti-frozen by adopting insulation materials, but the position of a water outlet throttle of the water pipe is usually frost-cracking and water leakage caused by accumulated water, repeated repair and replacement are needed, and long-term special personnel is needed for matching, so that the investment of construction cost is increased,

disclosure of Invention

The invention aims to provide a method for controlling frost cracking of a pipeline joint by using a three-way combination, which solves the problems of construction cost and the like. The plastic bottle above the tee joint retracts and contracts by the negative pressure generated by water backflow after the control power supply is cut off, the stored water at the position of the water outlet throttle of the pipeline is squeezed by the air pressure generated by the plastic bottle contraction, and the frost crack of the water outlet control throttle is avoided. The specific process steps are as follows:

firstly, selecting a three-way pipe 1 with the same diameter as the temporary water branch pipe, a short-section pipe 2 with a screw thread and a plastic bottle 3 (figures 1, 2 and 3) with the matched caliber;

secondly, the lower end of the three-way pipe 1 is connected with a temporary water using branch pipe 5, the upper section of the three-way pipe 1 is fastened with a plastic bottle 3 through a short pipe 2 with a screw thread, the middle end of the three-way pipe 1 is connected with a pipeline water outlet throttle 4, when water is temporarily used, the plastic bottle 3 at the upper end of the three-way pipe 1 is expanded and tightened due to the action of water pressure, and water flows out of the pipeline water outlet throttle 4 (fig. 4 and 5);

and thirdly, when water is not needed, cutting off a power supply for controlling the water to be supplied, returning water, generating a certain negative pressure inside the temporary water main pipe 6, enabling the plastic bottle 3 at the upper end of the tee joint 1 to retract and tighten due to the negative pressure, and squeezing out water stored at the position of the water outlet throttle 4 of the pipeline by air pressure generated by tightening the plastic bottle 3, thereby ensuring that the position of the water outlet throttle 4 of the pipeline is not frozen in winter (figure 6).

The method is simple and easy to operate, water stored at the position of the water outlet throttle is squeezed out by utilizing the air pressure generated by retraction and tightening of the plastic bottle, frost cracking of the water outlet throttle is avoided, manpower and material resources are saved, the construction cost is greatly reduced, and good economic benefits are obtained for companies.

Drawings

FIG. 1 is a front view of a tee.

FIG. 2 is a front view of a nipple pipe with threads.

Fig. 3 is a front view of a plastic bottle.

Fig. 4 is a front view of the water outlet throttle.

FIG. 5 is a front view of the water faucet door after the anti-freeze apparatus is installed.

FIG. 6 is a front view of the anti-freeze apparatus of the water outlet throttle in use after water cut-off after installation.

In the figure, a three-way pipe 1, a nipple pipe 2 with a screw thread, a plastic bottle 3, a water outlet throttle 4, a temporary water using branch pipe 5 and a temporary water using main pipe 6.

Detailed Description

Fig. 1-6 illustrate an embodiment of the present invention. The specific implementation mode is as follows:

firstly, selecting a three-way pipe 1 with the same pipe diameter as a temporary water using branch pipe, a short-section pipe 2 with screw threads and a plastic bottle 3 with the matched caliber;

secondly, the lower end of the three-way pipe 1 is connected with a temporary water using branch pipe 5, the upper section of the three-way pipe 1 is fastened with a plastic bottle 3 through a short pipe 2 with a screw thread, the middle end of the three-way pipe 1 is connected with a pipeline water outlet valve 4, when water is temporarily used, the plastic bottle 3 at the upper end of the three-way pipe 1 is expanded and tightened due to the action of water pressure, and water flows out of the pipeline water outlet valve 4;

and thirdly, when water is not needed, a power supply for controlling the water to be supplied is cut off, water flows back, a certain negative pressure is generated inside the temporary water main pipe 6, the plastic bottle 3 at the upper end of the tee joint 1 is retracted and tightened by the negative pressure, and water stored at the position of the water outlet throttle 4 of the pipeline is squeezed by air pressure generated by tightening the plastic bottle 3, so that the water outlet throttle 4 of the pipeline is prevented from being frozen and cracked in winter.

In the reconstruction construction of a desulfurization factory building, a method for controlling frost cracking of a pipeline joint by using a tee joint combination is adopted for a temporary construction water pipe, namely, the three-way pipe and the plastic bottle are combined together for use, the three-way pipe with the same diameter as the temporary water using branch pipe is selected, the lower end of the three-way pipe is connected with the temporary water using branch pipe, the upper section of the three-way pipe is fastened with the plastic bottle through a short-joint pipe with a screw thread, the middle end of the three-way pipe is connected with a pipe water outlet valve, when the temporary water is used, because of the water pressure, the plastic bottle at the upper end of the tee joint is expanded and tightened, water flows out from the water outlet throttle of the pipeline, when the water is not needed, the power supply for water is cut off and controlled, the water flows back, a certain negative pressure is generated in the water pipe, the plastic bottle at the upper end of the tee joint is retracted and tightened by the negative pressure, and stored water at the water outlet throttle position of the pipeline is squeezed by air pressure generated by tightening the plastic bottle, so that the water outlet throttle position of the pipeline is prevented from being frozen and cracked in winter. The method is simple and easy to operate, the stored water at the position of the water outlet throttle is squeezed out by utilizing the air pressure generated by retraction and tightening of the plastic bottle, the frost crack of the water outlet throttle is avoided, the manpower and material resources are saved, the construction cost is greatly reduced, and the precious experience is accumulated for similar construction in the future.

Claims

1. A method for controlling frost crack of a pipeline joint by using a three-way combination is characterized by comprising the following process steps:

firstly, selecting a three-way pipe (1) with the same diameter as the temporary water branch pipe, a nipple pipe (2) with a screw thread and a plastic bottle (3) with the matched caliber;

secondly, connecting the lower end of the three-way pipe (1) with a temporary water using branch pipe (5), fastening the upper section of the three-way pipe (1) with a plastic bottle (3) through a nipple pipe (2) with a screw thread, and connecting the middle end of the three-way pipe (1) with a pipeline water outlet throttle (4) so that the plastic bottle (3) at the upper end of the three-way pipe (1) is expanded and tightened, and water flows out of the pipeline water outlet throttle (4);

and thirdly, when water is not needed, a power supply for controlling the water to enter the water is cut off, water flows back, a certain negative pressure is generated inside the temporary water using main pipe (6), the plastic bottle (3) at the upper end of the tee joint (1) is retracted and tightened up by the negative pressure, and stored water at the position of the pipeline water outlet throttle (4) is squeezed by air pressure generated by tightening up the plastic bottle (3), so that the position of the pipeline water outlet throttle (4) is prevented from being frozen and cracked in winter.