JP2010121277A - Urinal system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a urinal system which reduces clogging caused by the accumulation of foreign matter, the adhesion of a urinary calculus, etc. in horizontal drain piping, while striving for water saving. <P>SOLUTION: This urinal system includes a urinal, and the horizontal drain piping which is connected to a drain outlet of the urinal. The urinal system removes the foreign matter by discharging flushing water from the upstream side, with respect to the urinal, of the horizontal drain piping, and subsequently makes sterile water flow into the horizontal drain piping. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a urinal system that reduces clogging due to adhesion of urine stones or the like in a horizontal drainage pipe of a urinal in a toilet space where urinals are lined up, such as a public facility.

  Conventionally, in the horizontal drainage pipes of urinals, the gravity flow type with a gradient of 1/50 or 1/100 has been used, and the amount of flushing water from the urinal can be saved to the minimum amount. It is planned to clean the inner surface of horizontal drainage pipes and transport filth with a small amount of water.

  On the other hand, according to Patent Document 1, there is provided a system for flushing dirt, foreign matter, urine stones and the like accumulated in the pipe by flowing a large amount of water into the horizontal drainage pipe of the toilet. Patent Document 2 also proposes a method of removing clogs and preventing clogging by flowing pressurized water through a drain pipe.

JP 2001-303639 A JP 2008-25245 A Japanese Patent No. 3480173

Since the amount of flushing water in conventional urinals is reduced to the limit, accumulation of foreign matters and generation of urine stones are problematic in the horizontal drainage pipe.
The mechanism of urine stone adhesion to the horizontal drainage pipe is considered as follows. When urination is performed on the toilet, urine flows into the horizontal drainage pipe, and the urine stays in the retained water in the horizontal drainage pipe. At this time, in the toilet bowl that is water-saving, the urine stays in the horizontal drainage pipe while maintaining a high concentration without being diluted by the drainage.
In general, bacteria such as Neisseria gonorrhoeae exist in toilet bowls and horizontal drainage pipes. Urine contains a large amount of urea, but if bacteria are present in the accumulated water inside the horizontal drainage pipe, urea is decomposed into ammonia and carbon dioxide by the action of enzyme urease contained in the bacteria. If the amount of ammonia produced at this time is large, it will contribute to odor. When ammonia is generated, it dissolves in the liquid adhering to the inside of the horizontal drainage pipe or the accumulated water in the toilet, and the pH of the liquid rises. When the pH rises, the calcium ions contained in the liquid adhering to the inside of the horizontal drainage pipe and the accumulated water in the toilet bowl are transformed into carbonates and phosphates and deposited as urine stones in the horizontal drainage pipe. It will stick and cause clogging.

  In order to solve such a problem, flowing a large amount of water into the horizontal drainage pipe several times contradicts the original purpose of water saving. Even if the wastewater in the urinal is saved, if a large amount of water is poured into the horizontal drainage pipe, it must be said that it has fallen.

  In addition to the above, as a problem specific to the urinal, there is a problem that the sealing surface of the urinal is very small, and if a large amount of water is flowed, it flows out of the overflow surface of the urinal. That is, in the urinal horizontal drainage pipe, it is not practical to flow a large amount of water from the upstream of the toilet bowl even if water saving is not desired.

  Therefore, an object of the present invention is to provide a urinal system that reduces clogging due to foreign matter accumulation, urine stone adhesion, and the like in a horizontal drainage pipe while saving water.

  According to one aspect of the present invention, in a urinal system comprising a urinal and a horizontal drainage pipe connected to the drainage port of the urinal, flush water from the upstream side of the urinal of the horizontal drainage pipe. A urinal system is provided in which foreign matter is removed by flowing a sterilizing water and then sterilizing water is flowed into the horizontal drainage pipe.

  The present invention provides a urinal system that reduces clogging due to foreign matter accumulation, urine stone adhesion, and the like in a horizontal drainage pipe while saving water.

  DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, preferred embodiments of the invention will be described with reference to the accompanying drawings. In order to facilitate the understanding of the description, the same components in the drawings are denoted by the same reference numerals as much as possible, and redundant description will be omitted.

FIG. 1 shows a schematic configuration diagram of a urinal system according to an embodiment of the present invention. In the present embodiment, a plurality of urinals 5 are arranged in a row, and the drains of the respective urinals 5 are joined to the horizontal drainage pipe 6 via a flange and a piping member. A rising portion of the pipe is provided on the upstream side of the joint portion of the horizontal drainage pipe 6 with the urinal, and the automatic flush valve 8 is provided thereon. Further, each urinal 5 is provided with a washing flush valve 7. The water supply pipe 13 is connected to the automatic flush valve 8 and the plurality of washing flush valves 7, and can supply water to the automatic flush valve 8 and the plurality of washing flush valves 7.
Here, the automatic flush valve 8 can flow a larger amount of water than the cleaning flush valve 7. An automatic flush valve for a toilet may be used.

  If the slope of the horizontal drainage pipe can be made large, foreign matter and urine will not remain on the bottom of the pipe, and urine-derived deposits will also be difficult to stack. In order to secure as many as possible, it is usually difficult to take a gradient higher than this, and a normal horizontal drainage pipe has a water gradient of 1/50 or 1/100.

  When using a normal urinal, the cleaning flush valve 7 is opened at a predetermined timing to clean the bowl surface of the urinal. At this time, the automatic flush valve 8 is in a closed state. The predetermined timing may be, for example, a preset time interval, or may be a time when the use frequency of the urinal is counted and a certain count is reached. Or you may set so that it may wash | clean for every specification.

When the set time set in advance by the controller 3 is reached, the valve is opened, and water having a primary pressure applied to the water supply pipe 10 is discharged into the horizontal drainage pipe 6. As a result, the foreign matter remaining on the bottom surface of the horizontal drainage pipe 6 is completely washed away.
The water flow is adjusted according to the on-site water pressure by opening the stop valve of the automatic flush valve, and the discharge water volume can be adjusted with the flow rate adjustment valve. We will give consideration so that we can respond.

  Subsequently, the flush valve 7 is opened, and the electrolyzer is energized at the same timing to generate sterilizing water and clean the urinal ball surface. Thereby, sterilizing water is supplied to the horizontal drainage pipe 6 via each urinal, and the inner surface of the horizontal drainage pipe 6 is coated. As a result, the remaining bacteria are also killed, and the source of the dirt is prevented from being formed before the user comes again.

  As the set time set in advance in the controller 3, it is conceivable to set a predetermined time in a time zone in which the user of the urinal stops. Even if the foreign matter is removed by washing from the tank during a period when the urinal is used frequently, there is a possibility that another foreign matter may stay in the horizontal drainage pipe 6 immediately after washing, This is inefficient from the viewpoint of saving water because it requires washing once. In addition, since the toilet bowl is not washed during the time when the user of the urinal is cut off, the supply of water to the horizontal drainage pipe 6 is lost, and the urine pool is left in the same state for a long time. There is a risk that the activity will increase and the urine stone stacking speed will increase. In particular, when the foreign matter remains, the foreign matter becomes an obstacle, so sewage containing urine stays in the vicinity of the foreign matter for a long time, which may cause urinary stones. Therefore, after entering the time zone when the user is interrupted, foreign substances in the horizontal drainage pipe can be removed by discharging a large flow of cleaning water from the tank toward the horizontal drainage pipe 6. The horizontal drainage pipe 6 can be kept in a clean state during the time when it is interrupted.

For example, if it is an installation place such as a station building, the user will be interrupted during the time period from the last train to the first train, so one day stayed by supplying cleaning water from the tank at a predetermined time after the last train. The foreign matter can be removed by one cleaning, and effective pipe cleaning can be performed from the viewpoint of saving water and preventing urine stones.
Similarly, if it is a commercial facility, from closing to opening, if it is a school, from after school to school hours, if it is a company, if it is a time period between the end of work and the start of work, the user will be disconnected, so one day's foreign objects will be removed. Can be removed with a single wash.
Furthermore, since urine and washing water do not flow into the horizontal drainage pipe 6 for a long time, it becomes possible to keep the sterilized state with the sterilizing water for a long time, which is effective.

In the present embodiment, the drainage flow path of the pipe connecting the urinal and the horizontal drainage pipe has a positive gradient. In other words, the urinal itself is not provided with a trap and the eye plate is eliminated.
In an environment where there are an unspecified number of users, there is a high probability that foreign matter will enter the urinal drain, and if left unattended, it will block the opening of the eye plate and hinder drainage capacity, making it difficult to draw water May be. In order to prevent this, if a foreign object is collected at each cleaning operation, there is a problem that if there are a large number of instruments, it will be very time-consuming and work efficiency will deteriorate. However, it is possible to reduce the load of the cleaning work by not providing the trap or the eye plate of the urinal itself.

By applying the present invention to the urinal system having such a configuration, even if a large amount of foreign matter enters the horizontal drainage pipe 6, the horizontal drainage can be carried out by flushing it periodically and coating it with sterilizing water. While suppressing clogging of pipe 6 and generation of odor, it is possible to reduce the possibility of clogging of traps of each toilet, and to reduce the trouble of removing foreign matters periodically in horizontal drainage pipe 6.

The schematic block diagram of the urinal system which is another Example of this invention is shown in FIG. In the embodiment shown in FIG. 2, the pipe is set up on the most water of the horizontal drainage pipe 6, and the tank unit 4 is provided thereon. A time zone during which the user is interrupted is set in advance by the controller 3 depending on the usage situation at the installation site. At a set time every day, the primary electromagnetic valve 2 opens, the water supplied from the water supply pipe 10 is stored in the tank 4, and when a certain amount of water is stored, the primary electromagnetic valve 2 is closed to stop water supply. Next, the drain valve of the tank 4 is opened, and the horizontal drainage pipe 6 is cleaned. As a result, the foreign matter remaining on the bottom of the pipe is completely swept away.
Subsequently, the flush valve 7 is opened, and the electrolyzer is energized at the same timing to generate sterilizing water and clean the urinal ball surface. As a result, the water stored in the urinal trap is replaced with sterilizing water, and bacteria staying there are sterilized to suppress the formation of deposits in the trap. Further, from each urinal to the horizontal drainage pipe 6 Also, the surface of the horizontal drainage pipe 6 is coated by extruding sterilizing water. As a result, the remaining bacteria are also killed, and the source of the dirt is prevented from being formed before the user comes again.

  The schematic block diagram of the urinal system which is another Example of this invention is shown in FIG. In the embodiment shown in FIG. 3, the piping space behind the urinal 5 is narrow, and the tank 4 and the automatic flush valve 8 for the urinal cannot be arranged. An exposed portion of the drainage pipe that is set up directly upstream from the joint portion of the horizontal drainage pipe 6 with the urinal is covered with a pipe cover 11 and joined to the tank drainage section behind the ceiling.

FIG. 4 is a schematic configuration diagram showing one embodiment of the tank unit. When the predetermined timing set in advance is reached, the primary electromagnetic valve 2 is opened in response to a signal from the controller 3, and water is supplied into the tank. When the amount of water in the tank reaches a certain amount, the float of the ball tap 19 is raised and water is automatically stopped. A signal is sent from the controller to automatically open and close the cleaning lever 17 after the timing when the water has accumulated in the tank and stopped, and the water in the tank is discharged into the horizontal drainage pipe 6.
When the sterilizing water is discharged for the second time, when the primary electromagnetic valve 2 is opened, a predetermined current is supplied between the electrodes at the same timing, and the current supply is stopped in accordance with the timing when the ball tap is used to stop the water.

  The raw water of the water supply pipe 13 may be reclaimed water other than tap water, and the drainage and rainwater from the washbasin in the same toilet are stored and reused, leading to effective utilization of water resources.

The sterilizing water in the present invention may be any liquid as long as it has a sterilizing action. As an example, there is a system in which ions are generated by an electrolysis apparatus as described in the embodiment. In the electrolyzer
An example of the sterilizing water to be generated is one that utilizes chlorine remaining in tap water.

  In addition to water containing free chlorine, water containing bound chlorine (eg, monochloramine, dichloramine, etc.), ozone-containing water (eg, generation of ozone by silent discharge in water or generation of ozone in water by electrolysis of water) The obtained ozone-containing water) and water containing antibacterial metal ions (for example, silver ions, copper ions, zinc ions, etc.) (PCT / JP95 / 01650) can also be used as sterilizing water.

  When free chlorine-containing water is used as sterilizing water, the concentration of free chlorine should be 0.1 mg / liter or more, preferably 0.5 mg / liter or more. The inner surface of the drain pipe is sufficiently sterilized. Therefore, the increase and fixation effect of urease based on the action of viable bacteria is effectively suppressed, the increase in pH due to the dissolution of ammonia is suppressed and adhesion of uric stone is prevented, and the cause of odor is also prevented.

  Furthermore, when ozone-containing water is used as sterilizing water, the ozone concentration in the ozone-containing water is 0.01 mg / liter or more, preferably 0.05 mg / liter or more. And the inner surface of the horizontal drainage pipe is fully sterilized. Therefore, the increase and fixation effect of urease based on the action of viable bacteria is effectively suppressed, the increase in pH due to the dissolution of ammonia is suppressed and adhesion of uric stone is prevented, and the cause of odor is also prevented.

  When the antibacterial metal ions are silver ions, when the silver ion concentration is 1 μg / liter or more, preferably 10 μg / liter or more, the liquid containing silver ions is mixed with the water retained in the toilet and maintained for a predetermined time. Thus, the staying water in the horizontal drainage pipe is effectively sterilized. Therefore, the increase and fixation effect of urease based on the action of viable bacteria is effectively suppressed, the increase in pH due to the dissolution of ammonia is suppressed and adhesion of uric stone is prevented, and the cause of odor is also prevented.

  Here, antibacterial metal ions have a low antibacterial ability due to instantaneous contact as compared with free chlorine and ozone, but have a long antibacterial life and an excellent antibacterial property by increasing the action time. If it is used in a mode in which it is maintained for a predetermined time in the staying water in the drainage pipe, viable bacteria are reduced in a small amount, and adhesion of urine stones and the like are preferable.

  Examples of the sterilizing water other than the above and a method for producing the same include a method of mixing a sterilizing agent into the washing water.

The schematic block diagram of the urinal drain pipe which is a 1st Example of this invention is shown. The schematic block diagram of the urinal drain pipe which is a 2nd Example of this invention is shown. The schematic block diagram of the urinal drain pipe which is the 3rd Example of this invention is shown. Example of tank unit

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Electrolyzer 2 ... Primary solenoid valve 3 ... Controller 4 ... Tank 5 ... Urinal 6 ... Horizontal drainage piping 7 ... Cleaning flush valve 8 ... Automatic flush valve 13 ... Water supply piping 14 ... Piping cover 15 ... Ceiling 16 ... Electrode 17 ... Cleaning lever 18 ... Drain valve 19 ... Ball tap

Claims (5)

A urinal,
In the urinal system comprising a horizontal drainage pipe connected to the drainage port of the urinal,
The washing water is poured from the upstream side of the urinal of the horizontal drainage pipe to remove foreign matters,
A urinal system characterized in that sterilizing water is then flowed into the horizontal drainage pipe. 2. The urinal system according to claim 1, wherein the sterilizing water is caused to flow through the urinal into the horizontal drainage pipe. The urinal system according to claim 1 or 2, wherein washing water is allowed to flow into the horizontal drainage pipe at a predetermined time. The urinal system according to claim 3, wherein the setting change of the predetermined time is possible. The urinal system according to any one of claims 1 to 4, wherein a drainage flow path of a pipe connecting the urinal and the horizontal drainage pipe has a positive gradient.

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