Building life drainage system with water seal monitoring and automatic water supplementing system

Abstract

The utility model relates to a building life drainage system, and aims to solve the technical problems of monitoring the liquid level of a water seal of a toilet drainage system in real time and automatically supplementing water to the water seal in time. The water seal monitoring and automatic water replenishing system is characterized by comprising sensors, a water replenishing pipeline and an electromagnetic water replenishing valve, wherein the sensors are arranged at the trap and the floor drain with the water seal and are used for monitoring liquid level data of the water seal; the electromagnetic water replenishing valve is arranged on the water replenishing pipeline and is provided with a controller; and the controller controls the normally closed electromagnetic water replenishing valve to open according to data monitored by the sensor so as to replenish water to the trap and the floor drain with the water seal. According to the utility model, the automatic detection of the toilet water seal is realized, and the water is automatically supplemented according to the detection result, so that the water seal is maintained within the depth range specified by the standard, and the water seal is prevented from drying up, harmful gas in the drain pipe overflows and harming the human health due to long-time travel or no living.

Description

Technical Field

[0001] This utility model relates to the field of building drainage system engineering technology; specifically, it relates to a water seal monitoring and automatic water replenishment system for building domestic drainage systems. Background Technology

[0002] Building drainage systems are piping systems within buildings used to discharge domestic sewage and wastewater. They typically include roof vent risers, drainage risers, horizontal drainage branch pipes installed on each floor to discharge domestic sewage and wastewater into the drainage risers, and discharge pipes connected to the bottom of the risers to discharge domestic sewage and wastewater out of the building. Building drainage systems discharge domestic sewage and wastewater into community drainage pipelines or municipal sewage and wastewater networks through outdoor inspection wells.

[0003] Building drainage systems are closely related to people's daily quality of life. They not only need to ensure the smooth discharge of domestic sewage and wastewater, but also prevent harmful gases from escaping from drainage fixtures and polluting the living space. Therefore, a crucial component of building drainage systems is the water trap. A water trap is a device that prevents polluted gases from entering the room by maintaining a water seal within a fixture or pipe section. Common types include U-shaped or S-shaped water traps, integrated water traps combined with sanitary fixtures (such as toilets, urinals, and bidets with water seals), and water-sealed floor drain water traps. However, if residential drainage fixtures are left unused for extended periods, the water seal in the water trap may evaporate and dry out without timely replenishment, losing its protective function. This allows harmful gases from the drainage pipes to directly enter the living space, causing serious pollution to the indoor environment. Tests have shown that a 50mm deep water seal in a trap will typically dry out within about two weeks, causing the water seal depth to drop below the minimum depth specified by the standard, thus rendering the water seal protection ineffective. This mainly occurs in residences that have been unoccupied for extended periods of time, hotel rooms that have been unoccupied for long periods of time, student dormitories during winter and summer vacations, and water seals and dry area floor drains in bathrooms that have not been replenished with water for a long time.

[0004] Referring to Figures 1(a), 1(b), and 1(c), A1 is a horizontal branch pipe for drainage; A2 is a P-trap for water replenishment; A3 is a dry area direct-connection floor drain; A4 is a washbasin; A5 is a washbasin countertop; A6 is the bathroom floor; and A7 is a shower direct-connection floor drain. The existing method to prevent the water seal of the dry area direct-connection floor drain A3 from drying out is to share the water seal of the P-trap A2 with frequently used sanitary fixtures, ensuring that the P-trap A2, which shares the water seal with the washbasin A4 drain, the shower direct-connection floor drain A7, and the dry area direct-connection floor drain A3, is constantly replenished. However, this method only works when someone is living in the bathroom and using the sanitary fixtures normally; it does not solve the problem of bathroom odor caused by the water seal drying out when the room is unoccupied for extended periods. Utility Model Content

[0005] The technical problem to be solved by this utility model is to overcome the defects of the prior art and provide a water seal monitoring and automatic water replenishment system for water traps, which can monitor the water seal level of the bathroom drainage system in real time and automatically replenish the water seal in a timely manner.

[0006] To achieve the above-mentioned technical objectives, this utility model provides the following technical solution:

[0007] A building domestic drainage system with a water seal monitoring and automatic water replenishment system, the drainage system includes a drainage riser 1, a drainage horizontal branch pipe, an overhead vent riser 27, and a discharge pipe 14 connected to the bottom of the drainage riser. A water trap is provided on the drainage horizontal branch pipe. The system is characterized in that: the water seal monitoring and automatic water replenishment system includes sensors installed at the water trap 4 and the water-sealed floor drain 5 for monitoring water seal level data, a water replenishment pipeline 6, and an electromagnetic water replenishment valve 7 with a controller installed on the water replenishment pipeline; the controller controls the normally closed electromagnetic water replenishment valve 7 to open and replenish water to the water trap 4 and the water-sealed floor drain 5 according to the data monitored by the sensor.

[0008] Furthermore, the sensor is either a contact level sensor or a differential pressure level sensor; specifically, it can be set according to the structural dimensions of the water trap and the water-sealed floor drain for easy installation. Generally, a contact level sensor 11 installed on the water trap 4 and a differential pressure level sensor 10 installed on the water-sealed floor drain 5 are used. If the structural dimensions and installation space allow, a differential pressure level sensor can also be used on the water trap 4, and a contact level sensor can also be used on the water-sealed floor drain 5.

[0009] Preferably, the water seal monitoring and automatic water replenishment system further includes a water seal connection pipe 601, which is used to connect several floor drain water seal inlets and water trap inlets. Multiple water seals can be replenished by replenishing any one floor drain or water trap.

[0010] Furthermore, the water supply pipeline of the water seal monitoring and automatic water replenishment system is connected to the household water supply pipeline. The water supply pipeline replenishes the water seal in an indirect manner. The water supply inlet is located above the inlet with a water trap 4 or the inlet with a water seal floor drain 5, and the height is not less than 15cm.

[0011] The beneficial effects of this utility model are:

[0012] This invention enables automatic detection of the water seal in the bathroom and automatic water replenishment based on the detection results, ensuring that the water seal is maintained within the standard depth range. This prevents the water seal from drying out due to prolonged travel or vacancy, thus preventing harmful gases from escaping from the drain pipe and endangering human health. Attached Figure Description

[0013] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are for illustrative purposes only and are not intended to limit the scope of the present invention.

[0014] Figure 1(a) is a schematic diagram of Scheme 1 in the prior art, which uses the drainage of the washbasin to replenish water for the shared water seal;

[0015] Figure 1(b) is a schematic diagram of Scheme 2 in the prior art, which uses the drainage of the washbasin to replenish water for the shared water seal;

[0016] Figure 1(c) is a schematic diagram of a prior art scheme that uses shower floor drain drainage to replenish water to a shared water seal; Reference numerals:

[0017] A1—Horizontal branch drain pipe; A2—Water-replenishing P-trap; A3—Direct drain in dry area; A4—Washbasin; A5—Washbasin countertop; A6—Bathroom floor; A7—Direct drain in shower area.

[0018] Figure 2 This is a schematic diagram of a preferred embodiment of the present invention;

[0019] Figure 3 This is a schematic diagram of another preferred embodiment of the present invention.

[0020] Explanation of reference numerals in the attached figures:

[0021] 1—Drainage riser; 2—Riser horizontal branch pipe joint; 3—Drainage horizontal branch pipe; 301—Second floor drainage horizontal branch pipe;

[0022] 302—Three-layer drainage horizontal branch pipe; 4—Water trap; 5—Floor drain with water seal; 6—Stainless steel water supply line;

[0023] 601—Water seal connection pipe; 7—Electromagnetic water supply valve; 8—Manual water supply valve; 9—Residential water supply pipeline;

[0024] 10—Contact level sensor; 11—Level test probe; 12—Pressure sensor;

[0025] 13—Upper pipe with cleaning port elbow; 14—Drain pipe; 15—Ultrasonic liquid level detector;

[0026] 16—High-pressure water nozzle; 17—Electric flushing valve; 18—Check valve; 19—High-pressure flushing water pump;

[0027] 20—Outdoor inspection well; 21—Pipeline for community drainage or municipal sewage and wastewater network;

[0028] 22—Manual flushing valve; 23—Water storage tank; 24—Auxiliary venting line; 25—Solenoid butterfly valve;

[0029] 26—Auxiliary vent; 27—Extended vent riser. Detailed Implementation

[0030] For a preferred embodiment of this utility model, see [link to relevant documentation]. Figure 2 The building's domestic drainage system includes drainage risers 1 and horizontal drainage branch pipes installed on each floor of the building, such as... Figure 2 The diagram shows a horizontal drainage branch pipe 301 on the second floor, a horizontal drainage branch pipe 302 on the third floor, and horizontal drainage branch pipes 3 on other floors. These horizontal drainage branch pipes connect to a drainage riser 1 via a riser horizontal branch pipe connector 2. The drainage riser 1 connects upwards to a roof vent riser 27. The bottom of the drainage riser 1 is equipped with a cleanout elbow 13 and a discharge pipe 14. The discharge pipe 14 connects to an outdoor inspection well 20. The building's domestic sewage drainage system discharges domestic sewage and wastewater into the community drainage pipeline or the municipal sewage and wastewater network 21 through the outdoor inspection well 20. The horizontal drainage branch pipes are equipped with a water trap 4 for connecting to bathroom drainage fixtures and a water-sealed floor drain 5.

[0031] like Figure 2 In the preferred embodiment shown, the water seal monitoring and automatic water replenishment system for the water trap includes a stainless steel water replenishment pipeline 6, an electromagnetic water replenishment valve 7, a manual valve 8, a residential water supply pipeline 9, a differential pressure level sensor 10, and a contact level sensor 11. Based on the water seal level data of the water trap 4 and the water-sealed floor drain 5 monitored by the differential pressure level sensor 10 and the contact level sensor 11 respectively, the system automatically opens the normally closed electromagnetic water replenishment valve 7 to replenish water to the water trap 4 and the water-sealed floor drain 5. It can also automatically close the electromagnetic water replenishment valve 7 after a preset delay time until a specified water seal depth is reached.

[0032] The water seal monitoring and automatic water replenishment system for the water trap (see...) Figure 2The automatic water supply system monitors the water seal level changes in the water trap 4 and the water-sealed drain 5 in real time using a contact level sensor 11 installed on the trap 4 and a differential pressure level sensor 10 installed on the drain 5. When the water seal level in either the trap 4 or the drain 5 drops below 25mm due to evaporation or negative pressure suction in the pipeline, the PLC controller automatically opens the electromagnetic water supply valve 7 based on the collected electrical signals from the contact level sensor 11 or the differential pressure level sensor 10. Water is then supplied to the trap 4 and the drain 5 via the stainless steel water supply pipeline 6. The electromagnetic water supply valve 7 will automatically close after a pre-programmed delay shutdown according to the PLC, once the water seal level in the trap 4 and the drain 5 reaches the specified depth, thus completing the entire process of automatic water supply to the water seal.

[0033] Furthermore, such as Figure 2 As shown, the contact-type liquid level sensor 11 of the water trap water seal monitoring and automatic water replenishment system is installed in the connecting pipe of the water trap 4 with a connecting pipe in the bathroom on each floor. When the liquid level drops, the contact-type liquid level sensor 11 will send a low liquid level switch electrical signal. The differential pressure liquid level sensor 10 of the water trap water seal monitoring and automatic water replenishment system is installed in the connecting pipe of the water-sealed floor drain 5 with a connecting pipe in the bathroom on each floor. When the liquid level drops, the differential pressure liquid level sensor 10 will also send a low liquid level switch electrical signal.

[0034] The automatic water replenishment pipeline of the water trap water seal monitoring and automatic water replenishment system consists of a manual water replenishment valve 8, a stainless steel water replenishment pipeline 6, and an electromagnetic water replenishment valve 7, connected to the resident's water supply pipeline 9. When the water trap water seal monitoring and automatic water replenishment system in the bathroom of a floor is operating normally, the manual water replenishment valve 8 must remain open. When the water trap water seal monitoring and automatic water replenishment system in a bathroom of a floor needs to be stopped or repaired, the manual water replenishment valve 8 should be closed. The stainless steel water replenishment pipeline 6 connected after the electromagnetic water replenishment valve 7 uses a small-diameter stainless steel pipe to the water replenishment inlet. Water replenishment is done indirectly. The water replenishment inlet should be located at a height of not less than 15cm above the water trap inlet 4 and the floor drain 5 with a water seal to prevent contamination of the water supply pipe.

[0035] The water seal monitoring and automatic water replenishment system described in this utility model primarily selects water traps 4 and floor drains 5 with water seals on the drainage horizontal branch pipes, which are prone to water seal loss. This simplifies the system and reduces project costs.

[0036] like Figure 3In another preferred embodiment, the automatic water replenishment pipeline of the water seal monitoring and automatic water replenishment system of the sanitary and safe smart building domestic drainage system can also be composed of a pipeline consisting of a manual water replenishment valve 8, a stainless steel water replenishment pipeline 6, a water seal connecting pipe 601, and an electromagnetic water replenishment valve 7, connected to the resident's water supply pipeline 9. The water seal connecting pipe 601 is used to connect with the floor drain water seal inlet and the water seal inlet during drainage pipe installation. This way, the water replenishment inlet only needs to be set above any floor drain or water seal inlet by more than 15cm to replenish multiple water seals. This alternative solution is suitable for new construction and renovation projects.

[0037] The embodiments described above are only used to illustrate the present utility model and are not intended to limit the present utility model. Any person skilled in the art can make various modifications, changes or substitutions without departing from the technical scope disclosed in the present utility model. Therefore, all equivalent and similar technical methods should be covered within the patent protection scope of the present utility model.

Claims

1. A building domestic drainage system with water seal monitoring and automatic water replenishment system, the drainage system comprising a drainage riser (1), a drainage horizontal branch pipe, an overhead vent riser (27), and a discharge pipe (14) connected to the bottom of the drainage riser, wherein the drainage horizontal branch pipe is provided with a water trap; characterized in that: The water seal monitoring and automatic water replenishment system includes a sensor installed at the water trap (4) and the water-sealed floor drain (5) to monitor the water seal level data, a water replenishment pipeline (6), and an electromagnetic water replenishment valve (7) with a controller installed on the water replenishment pipeline; the controller controls the normally closed electromagnetic water replenishment valve (7) to open according to the data monitored by the sensor to replenish water to the water trap (4) and the water-sealed floor drain (5).

2. A building domestic drainage system with water seal monitoring and automatic water replenishment system according to claim 1, characterized in that: The sensor is a contact level sensor (11) or a differential pressure level sensor (10).

3. A building domestic drainage system with water seal monitoring and automatic water replenishment system according to claim 1 or 2, characterized in that: The water seal monitoring and automatic water replenishment system also includes a water seal connection pipe (601), which is used to connect several floor drain water seal inlets and water trap inlets.

4. A building domestic drainage system with water seal monitoring and automatic water replenishment system according to claim 3, characterized in that: The water supply pipeline of the water seal monitoring and automatic water replenishment system is connected to the water supply pipeline of the residents. The water supply pipeline replenishes the water seal in an indirect way. The water supply inlet is set above the inlet with a water trap (4) or the inlet with a water seal floor drain (5), and the height is not less than 15cm.

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