JPH0329418Y2 - - Google Patents

Description

[Detailed explanation of the idea] (Industrial application field) This invention relates to an antifreeze device for water pipes, etc.

(Prior art) Conventionally, in order to prevent water pipes, hot water supply pipes, etc. from freezing, water pipes have generally been wrapped with antifreeze belts containing heating wires, and heated using antifreeze plugs or heat pipes that collect geothermal heat. measures are being adopted.

(Problems to be solved by the invention) However, the conventional anti-freezing device has the following problems.

In other words, when it comes to water supply anti-freeze belts that have built-in heating wires, installation and replacement work is troublesome, the water pipe anti-freeze belts are not durable and do not last long, there is a risk of electrical leakage fires and electric shocks, and it is difficult to install or replace them. Since the required power is determined in proportion to the length of water pipes, there are drawbacks such as extremely high electricity usage charges when trying to protect a large number of long water pipes.

In addition, antifreeze plugs are expensive, require troublesome and large-scale construction, are ineffective unless special instructions are always followed, and once frozen, recovery and repair are extremely difficult. There is a drawback.

The antifreeze device using a heat pipe is even more difficult to install than the first two, and requires excavating several meters at the point where the water pipe starts. Further, the main body is extremely expensive, and there are disadvantages in that it is not suitable for protecting horizontally long pipe sections.

Therefore, the present invention is intended to solve these problems, and its purpose is to provide a freezing prevention device for water pipes, etc. that is easy to install, durable, and low cost to maintain and use. .

(Means for Solving the Problems) The antifreeze device for water pipes, etc. according to the present invention has the following configuration in order to solve the above problems.

In other words, one end of the pipe that connects or incorporates the blower is opened, the other end is connected to or wrapped around a heat source such as a boiler to recover heat from a hot water boiler, etc., waste heat, etc., and then a water pipe, etc. is enclosed. The present invention is characterized in that warm air can be blown into the space inside the coated cylinder, which serves as a freeze prevention section for preventing freezing.

(Effect) Describe the effect. The air sent from the blower is heated at the heat source to become warm air, which is then sent into the heat pipe to uniformly and efficiently heat water pipes and the like to prevent freezing. The blower always blows cold air and never heats up.

(Embodiments) Below, preferred embodiments embodying the present invention will be described in detail with reference to the drawings.

In FIG. 1, the right end of a pipe 12 having a blower 10 connected to its left end is connected to or wound around a hot water boiler 14, thereby absorbing heat from the hot water boiler 14 and waste heat. As the pipe 12, a metal pipe with high heat absorption is used. pipe 12
The pipe 16 is connected to the right end of the pipe 12 so as not to dissipate the heat absorbed by the pipe 16 on the way.
is made of heat-resistant rigid foamed polystyrene, foamed polyurethane, or other foamed insulating material, or
cover with them. Further, the covering cylinder 20 of the water pipe 18 connected to the right end of the pipe 16 completely covers the periphery of the water pipe 18 so as to form a concentric space slightly spaced from the surface of the water pipe 18. This covering cylinder 20 extends below the ground surface 22. The upper part of the covering cylinder 20 is bent at a right angle to the right, and the end of the water faucet 24 is enclosed and sealed, and a part of the covering cylinder 20, for example, a ventilation hole is formed in the bottom surface of the bent part. 26 is opened. Covered cylinder 2
0 is suitable for a two-part fitting type, and in that case, an inverted L-shaped buttful 28 or the like is formed inside the pipe 16 from near the upper end to the lower part so that hot air can be sent into the underground part. is preferable. In addition, the covering cylinder 20 can be suitably used not only at the rising part of a water pipe, but also at a place where the water pipe extends horizontally for a long time. It is preferable to form a large number of protrusions or spiral protrusions on the inner surface of the covering cylinder 20.

Air can be distributed to multiple locations. For example, a pipe can be branched after being buried in the soil, and in this case, the ventilation holes near the pipe are made small in diameter or non-porous, thereby uniformizing the supply of warm air to distant locations. can be achieved. A thermostat can stop the blower equipment, etc. when the temperature exceeds a certain level.

In addition, the heat source of hot air is not limited to the above-mentioned residual heat/waste heat, but includes the blower 10 and the pipe 1.
A heater made of a heating wire may be provided between the two, or hot water may be used as a heat source.

(Effects of the invention) As described above, the invention can be used as a freezing prevention device for water pipes, etc. by forcibly blowing warm air at extremely low cost using various types of heat.
It can simultaneously prevent freezing of a large number of long or distant water pipes, is simple, has no parts that are prone to failure, is semi-permanent, and has extremely high durability. Also, unlike anti-freeze valves, no operation is required and the water supply can be used at all times. Furthermore, since there is no electric heater, there is no need to worry about wire breakage or electrical leakage, making it safe to use. This has the remarkable effect of making construction and repair considerably easier.

The present invention has been variously explained above using preferred embodiments, but the present invention is not limited to these embodiments, and it goes without saying that many modifications can be made without departing from the spirit of the invention. That's true.

[Brief explanation of the drawing]

1 and 2 are partially sectional front views. DESCRIPTION OF SYMBOLS 10...Blower, 12...Pipe, 14...Hot water boiler, 16...Pipe, 18...Water pipe, 20...Coated cylinder, 22...Ground surface, 24...Faucet, 26...Vent hole part, 28...Batsuful.

Claims (1)

[Scope of Claim for Utility Model Registration] 1. After opening one end of a pipe connected to or incorporating a blower, and connecting or winding the other end to a heat source such as a boiler to recover heat from a hot water boiler, waste heat, etc., A freeze prevention device for water pipes, etc. that can blow hot air into the space inside the covering cylinder, which acts as a freeze prevention part that surrounds water pipes and prevents them from freezing. 2. A freezing prevention device for water pipes, etc., as set forth in claim 1 of the utility model registration claim, in which the covering cylinder is made of a foamed heat insulating material.