RU115439U1 - PROTECTION OF DRAINAGE (WATER DRAINAGE) PIPES FROM FREEZING - Google Patents

Abstract

A device for protecting drainage pipes from freezing, including a pipe laid under the embankment, characterized in that two identical inflatable rubber balls are placed in the pipe, which are inflated using a foot pump, each of the balls is placed, respectively, in identical polyethylene sleeves, which are tied with a rope, in this case, sleeves with balls are placed at both ends of the pipe to ensure the tightness of the inner cavity of the pipe from external influences, and the diameter of the balls in the inflated state and the diameter of the sleeves are greater than the diameter of the drainage pipe.

Description

The utility model relates to frost protection means for drainage (drainage) pipes by means of devices not structurally interfaced with a drainage pipe and intended for placement in drainage pipes laid under roads or railways.

The closest analogue of the proposed device is a culvert (patent RU No. 80456 U1, publ. 10.02.2009) containing a drainage pipe laid under the embankment. This culvert is installed on an ongoing basis and is designed to protect drainage pipes from freezing due to the installation of a melt water flow restrictor in the upper half of the drainage pipe.

The disadvantage of this device is the freezing of water inside the pipe.

Since the air temperature in the pipe will always be equal to the temperature of the outside air, after freezing water in the lower open part of the pipe, the level of melt water rises and water will begin to seep into the upper part of the pipe, where it will also freeze. As a result, the drainage pipe will freeze through and through. The installation of a culvert is a rather complicated process using special tools.

This utility model is aimed at creating a device devoid of the disadvantages of the known device and ensuring the achievement of a technical result, which consists in increasing the efficiency of protection of drainage pipes from through freezing and blocking with ice.

The technical result is achieved in that the device for protecting the drainage pipes from freezing includes a pipe laid under the embankment, into which two identical inflatable rubber balls are placed, inflated using a foot pump (you can use a foot pump to pump rubber boats), each of the balls is placed respectively in identical polyethylene sleeves that are tied with a rope, while the sleeves with balls are placed on both ends of the pipe to ensure the tightness of the internal cavity of the pipe from external influences, and meter balloon in the inflated state and the diameter of the drainage pipe sleeves greater diameter.

The length of the polyethylene sleeve should be the length necessary to place the inflated ball inside the polyethylene sleeve and to tie both ends of the polyethylene sleeve with a rope.

The film thickness of the polyethylene sleeve is selected depending on the abrasiveness of the inner wall of the drainage pipe. The greater the risk of piercing the rubber ball about the roughness of the inner wall of the drainage pipe, the thicker the thickness of the film of the polyethylene sleeve should be.

The length of the rope should be the length necessary for tying the four ends of two plastic sleeves and two necks of inflatable balls.

The device is installed by the forces of one person, who may not have special knowledge and do not own special tools. Installation is carried out temporarily, at the time of the onset of weather conditions (autumn-winter period), under which layer-by-layer ice formation begins in the pipe and is dismantled with the beginning of active melting of the snow cover (spring-summer period). After the device is installed, the inner space of the pipe is sealed from exposure to cold air from the external environment, the air temperature in the pipe is set equal to the temperature of the frost-free earth under the embankment, at which the water in the pipe will flow without freezing. In this case, melt water will constantly seep between the inflated balls and the wall of the drainage pipe.

The utility model is illustrated in the drawing.

The device contains a drainage pipe 1, two identical rubber balls 2, two identical polyethylene sleeves 3.

The device works as follows.

Materials and pump are transported to the location of the drain pipe (1). One polyethylene sleeve (3) is tied with rope on one side. With the side tied forward, the polyethylene sleeve (3) is placed in the drain pipe (1) and laid out in full length on the bottom of the pipe from one end so that the untied side of the plastic sleeve (3) does not extend beyond the drain pipe (1). One rubber ball (2) is placed in the polyethylene sleeve (3) so that its neck is directed towards the untied side of the polyethylene sleeve (3). The rubber ball (2) is inflated using a foot pump until the walls of the ball (2) and the polyethylene sleeve (3) are firmly in contact with the walls of the drain pipe (1). The polyethylene sleeve (3) is tied on the second side.

In a similar way, a second polyethylene sleeve (3) and a second rubber ball (2) from the other end of the drainage pipe (1) are installed. Thus, the inner space of the drainage pipe (1) is sealed against external temperatures.

The process of installing the frost protection of the drain pipe is simple, consists of a minimal number of operations and takes a short period of time. The removal process is also very simple, not difficult, and is as follows. A rope is untied that connects the polyethylene sleeve from the outside. The neck of the rubber ball is untied. Air is released from the rubber ball. The ball is removed from the plastic sleeve. The sleeve is removed from the drain pipe. Similar actions are performed to remove the rubber ball and polyethylene sleeve on the other side of the drainage pipe. Depending on the quality, the used rubber balls and polyethylene sleeves are reused or recycled.

If urgent removal is necessary, the balloons and polyethylene sleeves are pierced with a knife (or other improvised device) and, after removal from the drainage pipe, are collected and disposed of. In an emergency case, the removal of the device will occur spontaneously, by squeezing the rubber balls and plastic sleeves from the drainage pipe by the pressure of melt water. Next, balls and polyethylene sleeves are removed from the stock channels and disposed of.

At the same time, the simple technology of installing and removing devices for protecting drainage pipes and the low cost of materials used completely eliminate freezing of wastewater in the pipe and the cost of removing ice from the pipe.

The small material consumption and simplicity of the design make it possible to install or remove frost protection by one person in a large number of drainage pipes in a short time.

Using the proposed device to protect the drainage pipes from freezing will significantly reduce the risk of erosion of earth embankments under roads and railways.

Claims (1)

A device to protect the drainage pipes from freezing, including a pipe laid under the embankment, characterized in that two identical inflatable rubber balls are placed in the pipe, which are inflated using a foot pump, each of the balls is placed, respectively, in the same polyethylene sleeves that are tied with a rope, while the sleeves with balls are placed at both ends of the pipe to ensure the tightness of the inner cavity of the pipe from external influences, and the diameter of the balls in the inflated state and the diameter of the sleeves is larger than the diameter of the drainage pipe.