JP2008069543A - Siphon drain construction method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a siphon drain construction method for a siphon drain system, especially reducing drain noise due to entrainment of air from the trap side in saving and releasing drainage, and preventing occurrence of sealing water shortage. <P>SOLUTION: In this siphon drain construction method, a drain pipe from a plumbing device expected to discharge a large quantity of drainage at one time such as a kitchen and two horizontal pipes are connected to each other. In the method, a connector is formed of a cylindrical base connected to the drain pipe and two small-diameter pipe bodies extended from the pipe, and a siphon breaker is installed on the pipe body passage side not used in continuous draining. In the drawings, the reference numeral 1 designates a cylindrical base, 2 and 3 designate small-diameter pipe bodies, 4 and 5 designate horizontal pulling pipes, 6 designates a floor slab, 7 designates a drain pipe from the kitchen or the like, and 30 designates the siphon breaker. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a siphon drainage method, and more particularly to a siphon drainage laying method used when there is a large amount of drainage at a time, such as in a bathtub or kitchen (hereinafter, mainly described with a kitchen). is there.

  In recent years, a siphon drainage method has been proposed in place of the conventional gradient drainage system. The outline of this siphon drainage method consists of a drainage stand, a non-gradient horizontal draw pipe from a watering device, and a merge section with a head of 50 cm or more, and the horizontal draw pipe joins with other pipes as it is. It is the drainage construction method connected to the said confluence | merging part without. And the water in a horizontal draw pipe is the construction method in which siphon force generate | occur | produces only the part of the said head difference, and drains the water in a horizontal draw pipe.

  However, in the conventional siphon drainage method, the technology of joints between drainage pipes has hardly been developed, and in particular, siphon drainage used when a large amount of drainage is generated at one time as in a kitchen. Currently, no connection body (hereinafter also referred to as a joint) has been developed.

  In order to improve this point, the present inventor has already provided a joint for use in a new kitchen. The content of the proposal is a joint that connects a drain pipe from a kitchen and two horizontal pipes, and has a bottomed cylindrical base connected to the drain pipe from the kitchen, and extends from the cylindrical base. , A joint composed of two small-diameter pipes to which the horizontal pipe is connected, and the two small-diameter pipes are joints formed at different positions on the top and bottom of the cylindrical base body .

  FIG. 1 is a partially cut side view of a joint used in the proposed siphon drainage method. Reference numeral 21 is a bottomed cylindrical base connected to a drain pipe from a kitchen (not shown), and 22 and 23 are two small-diameter pipes to which the horizontal pulling pipes 24 and 25 are connected, Protrusions are formed with different vertical heights. The tubular body 22 and the horizontal pulling pipe (hereinafter also referred to as the upper tubular body) 24 are laid with a gradient.

  Then, when a large amount of drainage is expected at a time, the drainage is received by the cylindrical base 21, and the two horizontal pulling pipes 24 and 25 are connected to drain both by siphon force. In other words, when draining the drainage water, the horizontal draw pipes 24 and 25 flow while full siphon and exhibit siphon, thereby ensuring the necessary amount of drainage.

  On the other hand, at the time of continuous drainage, siphon drainage is performed only with the horizontal draw pipe (hereinafter also referred to as the lower pipe) 25, but immediately after the drainage is started, drainage is also performed using the horizontal draw pipe 24 as described above. However, the upper tube body (horizontal drawing tube) 24 is used only immediately after the start of drainage and is not immediately used for drainage. At this time, when the upper and lower horizontal pipes 24 and 25 are not inclined as in the prior art, water may remain in the upper pipe body (horizontal pipe) 24. As described above, when water remains in the upper pipe (horizontal drawing pipe) 24, excessive siphon force (negative pressure) generated in the lower pipe (horizontal drawing pipe) 25 tries to suck air from the trap in the kitchen. Alternatively, when water remains in the upper tube body (horizontal drawing tube) 24, water and air in the upper tube body (lateral drawing tube) 24 are sucked at the same time. For this reason, it will bring about the drainage noise called the zoom by sucking water and air simultaneously.

  For this reason, it is preferable that the water in the upper tube body (horizontal drawing tube) 24 is caused to flow in the vertical tube direction by the gradient by installing the upper tube body (lateral drawing tube) 24 with a slight gradient. Due to this gradient, the inside of the upper tube (horizontal tube) 24 can be emptied, and excess siphon force generated in the lower tube (lateral tube) 25 is supplied from the upper tube (lateral tube) 24 to the air. It will be solved by smoking. That is, since air is not sucked from the trap side, the drainage noise is reduced. Moreover, since excessive siphon force (negative pressure) is no longer applied to the trap side, it is possible to prevent the seal water from running out.

  While this joint has a shape that fits under a common double floor, it is preferable to leave a vertical space S between the two pipe bodies 22 and 23, and to maximize the gradient of the upper pipe body (laterally drawn pipe) 24. It should be possible to limit. Actually, the purpose of the above gradient is not only to flow water in the upper tube (horizontal tube) 24, but also to empty the upper tube (lateral tube) 24. .

  As described above, the occurrence of water leakage is reduced because a new joint is formed by using the previously proposed joint without using a conventional increaser or reducer. However, there is a further improvement. In other words, in order to prevent air from being sucked from the trap side, the upper pipe body is provided with a gradient, which may make it impossible to store the joint under the floor. The length of the pull tube will be limited.

  An object of the present invention is to provide a siphon drainage method in which the upper pipe body is not inclined, drainage noise is not caused, and there is no lack of sealing water.

  The gist of the present invention is related to a siphon drainage method for connecting a drain pipe from a watering device that is expected to drain a large amount of water at once in a kitchen and two horizontal pipes, and is connected to the drain pipe. Siphon drainage method characterized in that a siphon breaker is installed on the side of a pipe path that is not used for continuous drainage, and is a connecting body comprising a base body and two narrow pipe bodies extending from the base body It depends on. Specifically, it is installed in a connecting pipe body or a drain pipe.

  In the present invention, by installing the siphon breaker on the tube path side that is not used during continuous drainage, air is not sucked from the trap side, and drainage noise is reduced. This was a great effect as a siphon drainage method in which the sealing water did not run out. Of course, without using a large number of conventional increasers and reducers, the joint is constructed, so that the occurrence of water leakage is reduced, and of course, the storage under the floor is improved and the upper pipe is not used for continuous drainage. Since it is no longer necessary to pipe the body with a gradient, the assembly workability is simplified, the workability is improved, and the workable area is extremely widened.

  Generally speaking, installation of a siphon breaker in the siphon drainage path has been considered to deteriorate the wastewater treatment capacity, and thus cannot obtain the treatment capacity required by the user.

  However, in the case of the proposed two-pipe construction method, the same applies to the kitchen, but in the unit bath, two-pipe is required only immediately after the start of drainage of the bathtub. Only two pipes were needed for the drainage. In this way, the usage frequency of the upper pipe is extremely low, and even when two pipes are used at the same time, about 70 to 80% of the required processing flow rate is processed by the lower pipe. The required processing flow rate was about 20-30% of the total.

  Thus, even in the case of the two-pipe construction method, the main role of the upper pipe is basically not used for drainage during continuous drainage, the interior is made empty, and the lower pipe Instead of pulling air from the trap toward the excessive siphon force brought about by the air, the air is pulled from the upper tube to suppress the occurrence of drainage noise.

  The present invention has been made based on such knowledge, and in the case of the two-pipe method, a siphon breaker is installed on the pipe path side that is not used in continuous drainage, that is, on the upper pipe side in the previous proposal. Air is introduced against the excessive siphon force of the lower pipe, and this reduces the wastewater treatment flow rate of the upper pipe, but there is no significant impact on the drainage method as a whole, and the necessary treatment capacity is secured. It consists of what can be done.

  Further, since it is not necessary to force the upper pipe body in which the siphon breaker is installed to be emptied, the upper pipe body can be piped with no gradient as before. This is because the maximum length of the horizontal pipe that has been determined by the size of the gradient and the size of the underfloor space can be significantly increased. The degree of freedom has become extremely wide.

  In the present invention, the installation position of the siphon breaker is arbitrary, and may be attached to the connection body (joint) itself or in the middle of the piping path. As the siphon breaker used in the present invention, a valve that is unilaterally opened only in the case of so-called negative pressure can be employed. For example, a flap valve, a slice valve, a taper cone valve, a ball valve, an electromagnetic valve Valves are preferred.

  Hereinafter, the present invention will be described in more detail with reference to the drawings. FIG. 2 shows the siphon drainage method of the present invention. Reference numeral 1 denotes a cylindrical base connected to a drain pipe 7 from a kitchen (not shown), and reference numerals 2 and 3 denote two small-diameter pipes to which a horizontal pulling pipe is connected. Reference numerals 4 and 5 denote horizontal pulling pipes connected to the pipe bodies 2 and 3. The tubular body 2 is formed above the tubular base body 1 with respect to the tubular body 3. The horizontal pipes 4 and 5 connected to these are laid on the floor slab 6 without any gradient, and the horizontal pipes 4 and 5 are connected to a drainage stand (not shown) as they are.

  In this example, as described above, the upper pipe body A (the pipe body 2 and the horizontal pulling pipe 4) is a pipe body on the side that is not used during continuous drainage, and the siphon breaker is attached to the pipe body 2. 30 is provided. In the siphon breaker 30, the valve is not opened when the fluid flows downstream, while the valve is opened when the fluid flows backward. Therefore, when the air is drawn in by the siphon force in the lower pipe B (the pipe 3 and the horizontal pipe 5), the air is not drawn from the trap, and the valve of the siphon breaker 30 is opened and the air is drawn. As a result, the drainage noise called “zoom” at the time of drainage is eliminated.

  FIG. 3 shows a second example of the siphon drainage method of the present invention. In this example, the horizontal pulling tube 2 is provided with a siphon breaker 30. Also in this case, the siphon breaker valve is opened and closed as in the previous example, and noise during drainage called zooming is eliminated.

  FIG. 4 shows a third example of the siphon drainage method of the present invention. In this example, the tubular bodies 2 and 3 are formed at the same horizontal position, but the siphon breaker 30 is directly provided on the cylindrical base 1.

  FIG. 5 shows a fourth example of the siphon drainage method of the present invention. In this example, the siphon breaker 30 is applied to the drainage of the unit bath. 10 is a unit bus and 11 is a trap. Such a trap is provided with a large-diameter pipe 12, into which two pipes 13 and 14 are inserted with a step. The upper pipe 13 is set longer than the lower pipe 14 and is a particularly preferable example for siphon drainage. Horizontal pulling tubes 15 and 16 are connected to the tubes 13 and 14. 30a, 30b, and 30c are siphon breakers, 30a is provided in the large-diameter pipe 12, and 30b and 30c are provided in the upper pipe body A (upper pipe 13 and horizontal draw pipe 15), respectively. Indicates.

  In this example, the upper pipe A (the pipe 13 and the horizontal pipe 15) is a pipe that is not used for continuous drainage, and the upper pipe A is provided with a siphon breaker 30. Is. In the siphon breaker 30, the valve is not opened when the fluid flows downstream, while the valve is opened when the fluid flows backward. Therefore, when air is drawn in by the siphon force in the lower pipe B (the pipe 14 and the horizontal pulling pipe 16), the air is not drawn from the trap 11, and the valve of the siphon breaker 30 is opened and the air is drawn. Will be drawn in.

  The present invention relates to the improvement of the siphon drainage method, which is an improvement of the two-pipe method by providing a siphon breaker on the tube side that is not used during continuous drainage. It does not require a gradient and does not generate drainage noise, and is widely used in siphon drainage methods for watering devices that are expected to discharge a large amount of water at once.

FIG. 1 is a partially cut side view showing a previously proposed siphon drainage construction method. FIG. 2 is a side view showing a first example of the siphon drainage method of the present invention. FIG. 3 is a side view showing a second example of the siphon drainage method of the present invention. FIG. 4 is a front view showing a third example of the siphon drainage method of the present invention. FIG. 5 is a front view showing a fourth example of the siphon drainage method of the present invention.

Explanation of symbols

1 ... cylindrical base,
2, 3 ... small diameter pipe,
4, 5 ... Horizontal pulling tube,
6. Floor slab,
7. Drain pipe from kitchen etc.
10 ... Unit bus,
11 ... trap,
12 ... large diameter pipe,
13, 14 ... Intubation,
15, 16 ... Horizontal pulling tube,
30, 30a, 30b, 30c ... siphon breaker,
A ... Upper tube,
B: Lower tube.

Claims (3)

  A siphon drainage method that connects a drain pipe from a watering device that is expected to drain a large amount of water at a time, such as a kitchen, and two horizontal pipes, extends from the cylindrical base connected to the drain pipe. A siphon drainage construction method comprising a siphon breaker installed on a pipe path side which is a connecting body composed of two small diameter pipe bodies and continuous drainage.   The siphon drainage method according to claim 1, wherein the pipe path is a connection body.   The siphon drainage method according to claim 1, wherein the pipe path is a drain pipe.

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