Building life drainage system with pressure monitoring and automatic balancing system

Abstract

The utility model relates to a building life drainage system, and aims to solve the technical problems of monitoring the pressure of a drainage vertical pipe in real time and automatically balancing the positive pressure at the bottom of the drainage vertical pipe. The device is characterized in that a pressure monitoring and automatic balancing system is arranged at the bottom of the drainage vertical pipe and mainly comprises a pressure sensor, an auxiliary ventilation pipeline and an electromagnetic valve, wherein the auxiliary ventilation pipeline is communicated with the bottom of the drainage vertical pipe and provided with an auxiliary ventilation opening communicated with the atmosphere, and the electromagnetic valve is provided with a controller; the pressure sensor is used for collecting air pressure in a drainage transverse branch pipe of a low floor at the bottom of the drainage vertical pipe, and the controller controls the electromagnetic valve arranged on the auxiliary ventilation pipeline to be opened or closed according to data collected by the pressure sensor. According to the utility model, the bottom pressure of the drainage riser is automatically monitored, and the pressure in the riser can be automatically balanced by communicating with the atmosphere, so that the phenomenon that harmful gas in the drainage pipe overflows and harms human health due to water seal splashing generated in a toilet of a bottom-floor residence caused by positive pressure exceeding a standard specified range is prevented.

Description

TECHNICAL FIELD

[0001] The utility model relates to building drainage system engineering technical field, concretely relates to a pressure monitoring and automatic balancing system for building life drainage system. BACKGROUND

[0002] Building life drainage system is the pipeline system for discharging domestic sewage and domestic wastewater from building, usually including roof extension top vent standpipe, drainage standpipe, drainage horizontal branch pipe arranged at each floor for discharging domestic sewage and domestic wastewater into drainage standpipe, and discharge pipe connected with the bottom of standpipe for discharging domestic sewage and domestic wastewater from building, building life drainage system discharges domestic sewage and domestic wastewater into community drainage pipeline or municipal sewage and wastewater network through outdoor inspection well.

[0003] Building life drainage system is closely related to people's daily life quality, it not only needs to ensure that people's daily domestic sewage and domestic wastewater can be discharged through drainage system, and also needs to prevent harmful gas in drainage pipeline system from escaping from drainage appliance to pollute room space. However, building life drainage system often causes partial or complete blockage of discharge pipe connected with the bottom of drainage standpipe in actual use, resulting in rising of pressure in pipeline, spattering of water seal, and escape of harmful gas from drainage appliance to pollute room space. Especially in the initial stage of new residential delivery, due to less occupancy of households, small drainage flow, and high content of solid waste in sewage and wastewater discharged during decoration and cleaning, the discharge pipe is prone to deposit at the bottom due to lack of sufficient drainage to flush. Partial blockage of discharge pipe mainly causes the air pressure in the bottom of drainage system standpipe to increase due to poor ventilation of discharge pipe, causing spattering and stench of water seal in kitchen and bathroom drainage pipeline of bottom floor.

[0004] COMBINATION Figure 1 The method for solving the problem of blockage of discharge pipe B4 in the prior art is to increase an auxiliary drainage pipeline B3 with water seal at the bottom of drainage standpipe B1, so that drainage can be carried out through auxiliary drainage pipeline B3 after blockage of discharge pipe B4, preventing sewage and wastewater from overflowing from floor bathroom drainage pipeline B2. However, the scheme of auxiliary drainage pipeline B3 only temporarily solves the drainage problem, because the water seal of S-shaped water trap B5 arranged on auxiliary drainage pipeline B3 prevents the discharge of gas in drainage standpipe, and cannot alleviate the problem of rising of positive pressure at the bottom of drainage standpipe caused by blockage, and still causes spattering and stench of floor bathroom drainage pipeline B2 at the bottom of drainage standpipe. UTILITY MODEL CONTENTS

[0005] The technical problem to be solved by the utility model is to overcome the defects of the prior art, and provide a pressure monitoring and automatic balancing system for building life drainage system, which can monitor the pressure of drainage standpipe in real time and automatically balance the positive pressure at the bottom of drainage standpipe.

[0006] To achieve the above technical purposes, the utility model provides the following technical scheme:

[0007] A building life drainage system with pressure monitoring and automatic balancing system, the drainage system includes drainage vertical pipe 1, drainage horizontal branch pipe, extends the vent vertical pipe 27, the discharge pipe 14 connected to the bottom of drainage vertical pipe, the drainage horizontal branch pipe is provided with water trap, its characterized in that: the bottom of drainage vertical pipe 1 is equipped with pressure monitoring and automatic balancing system, and the pressure monitoring and automatic balancing system mainly includes pressure sensor 12, auxiliary vent pipeline 24 with the auxiliary vent 26 that communicates with atmosphere in the bottom of drainage vertical pipe 1 communication has, and electromagnetic valve 25 with controller, the pressure sensor 12 is used to collect the air pressure in the drainage horizontal branch pipe of the bottom low floor of drainage vertical pipe 1, and the controller controls the electromagnetic valve 25 on auxiliary vent pipeline 24 to open or open and close according to the data collected by pressure sensor 12.

[0008] Further, the pressure sensor 12 is a pressure transmitter arranged on the drainage horizontal branch pipe of the second and third floors and spaced from the drainage vertical pipe by not more than 400 mm.

[0009] Preferably, the controller is a PLC controller.

[0010] Preferably, the electromagnetic valve 25 is an electromagnetic butterfly valve.

[0011] The utility model has the advantages that:

[0012] The utility model realizes automatic monitoring of the pressure at the bottom of the drainage vertical pipe, and automatically balances the pressure in the pipe by connecting the auxiliary vent pipe with the atmosphere according to the measured pressure data, thereby preventing the positive pressure from exceeding the standard range and causing water seal splashing in the toilet of the bottom floor, which makes harmful gases in the drainage pipe overflow and harm human health. BRIEF DESCRIPTION OF DRAWINGS

[0013] The utility model will be further described in detail in connection with the drawings and specific embodiments. It should be understood that the specific embodiments described herein are only used to explain the utility model and not to limit the utility model.

[0014] Figure 1 A schematic diagram of a scheme for solving the discharge pipe blockage by adding an auxiliary drainage pipe to the bottom of the drainage vertical pipe in the prior art;

[0015] REFERENCE SIGNS:

[0016] B1-drainage vertical pipe; B2-floor toilet drainage pipe; B3-auxiliary drainage pipe; B4-discharge pipe; B5-S-shaped water trap.

[0017] Figure 2A preferred embodiment structure schematic view of the utility model;

[0018] Mark explanation:

[0019] 1 - drainage riser; 2 - riser cross branch joint; 3 - drainage cross branch; 301 - two layers of drainage cross branch;

[0020] 302 - three layers of drainage cross branch; 4 - water trap; 5 - water seal floor drain; 6 - stainless steel water supply pipeline;

[0021] 7 - electromagnetic water replenishing valve; 8 - manual water replenishing valve; 9 - household water supply pipeline;

[0022] 10 - contact liquid level sensor; 11 - liquid level test probe; 12 - pressure sensor;

[0023] 13 - riser bottom elbow with cleaning port; 14 - discharge pipe; 15 - ultrasonic liquid level probe head;

[0024] 16 - high pressure water nozzle; 17 - electric flushing valve; 18 - check valve; 19 - high pressure flushing water pump;

[0025] 20 - outdoor inspection well; 21 - community drainage pipeline or municipal sewage pipe network pipeline;

[0026] 22 - manual flushing valve; 23 - water storage tank; 24 - auxiliary air pipe line; 25 - electromagnetic butterfly valve;

[0027] 26 - auxiliary air port; 27 - top extension air riser. DETAILED DESCRIPTION

[0028] The preferred embodiment of the utility model, see Figure 2 , building life drainage system includes drainage riser 1, is equipped with drainage cross branch in each floor of building, such as Figure 2 The second floor drainage cross branch 301, the third floor drainage cross branch 302, other floor drainage cross branch 3, the drainage cross branch is communicated through riser cross branch joint 2 drainage riser 1, drainage riser 1 is communicated upwards with top extension air riser 27, and the bottom of drainage riser 1 is equipped with elbow 13 with cleaning port and discharge pipe 14. Discharge pipe 14 is communicated with outdoor inspection well 20. Building life drainage system is communicated with outdoor inspection well 20 and is drained into the pipeline of community drainage pipeline or municipal sewage pipe network 21 with domestic sewage and domestic wastewater. The drainage cross branch is equipped with water trap 4 and water seal floor drain 5 connected with the bathroom drainage appliance.

[0029] As Figure 2The preferred embodiment shown, the building sanitary drainage system is provided with a pressure monitoring and automatic balancing system at the bottom of the drainage riser, which includes pressure transmitters 12 arranged on the drainage horizontal branch pipes 301, 302 of the second and third floors, an auxiliary vent line 24 with an auxiliary vent 26 connected to the atmosphere at the bottom of the drainage riser 1, and an electromagnetic butterfly valve 25.

[0030] The pressure monitoring and automatic balancing system at the bottom of the drainage riser monitors the pressure change data detected by the pressure transmitters 12 arranged on the drainage horizontal branch pipes 301, 302 of the second and third floors. When the pre-set positive pressure change range and duration are reached, the PLC controller controlling the opening of the electromagnetic butterfly valve 25 will automatically open the electromagnetic butterfly valve 25 arranged on the auxiliary vent line 24 according to the signals collected by the pressure sensor 12, and connect the bottom drainage riser 1 to the atmosphere through the auxiliary vent 26, so that the positive pressure in the drainage riser 1 higher than the atmospheric pressure is released, preventing the water traps 4 and water-sealed floor drains 5 on the drainage horizontal branch pipes 301, 302 of the second and third floors from spattering and emitting foul odor. When the real-time monitored pressure transmitters 12 detect that the pressure in the drainage horizontal branch pipes 301, 302 of the second and third floors decreases to a certain value, the PLC controller will automatically close the electromagnetic butterfly valve 25 according to the pre-programmed program.

[0031] The pressure sensor 12 of the pressure monitoring and automatic balancing system at the bottom of the drainage riser 1 is arranged on the drainage horizontal branch pipes 301, 302 of the second and third floors, which are not more than 400 mm away from the drainage riser (see Figure 2 ), to ensure that the influence of the pressure change at the bottom of the drainage riser 1 on the water traps on the drainage horizontal branch pipes 301, 302 of the second and third floors can be accurately tested, preventing the water traps in the toilets of the bottom floors from spattering and emitting foul odor.

[0032] Since the building sanitary drainage system usually has the maximum positive pressure at the bottom of the drainage riser of the second and third floors, the pressure monitoring device of the pressure monitoring and automatic balancing system at the bottom of the drainage riser is arranged on the drainage horizontal branch pipes 301, 302 of the second and third floors, which can detect the adverse state of the maximum positive pressure that may occur in the drainage riser, ensuring that the automatic balancing system can be opened in time to prevent the positive pressure in the drainage riser from exceeding the standard.

[0033] The above-described embodiments are only used to illustrate the present application, and are not intended to limit the present application. Any person skilled in the art can make various modifications, changes or replacements without departing from the technical scope disclosed in the present application, therefore all equivalent technical methods should be covered within the patent protection scope of the present application.

Claims

1. A building sanitary drainage system with pressure monitoring and automatic balancing system, said drainage system comprising a drainage riser (1), a drainage lateral, a vented roof vent (27), a discharge pipe (14) connected to the bottom of the drainage riser, said drainage lateral being provided with a water trap; characterized in that: A pressure monitoring and automatic balancing system is arranged at the bottom of the vertical drainage pipe (1), which mainly comprises a pressure sensor (12), an auxiliary vent line (24) with an auxiliary vent (26) communicating with the atmosphere and communicating with the bottom of the vertical drainage pipe (1), and an electromagnetic valve (25) with a controller; the pressure sensor (12) is used to collect the air pressure in the horizontal drainage branch pipe at the bottom of the low floor of the vertical drainage pipe (1), and the controller controls the electromagnetic valve (25) arranged on the auxiliary vent line (24) to open or close according to the data collected by the pressure sensor (12).

2. A building sanitary drainage system with pressure monitoring and automatic balancing system according to claim 1, characterized in that: The pressure sensor (12) is a pressure transmitter arranged on the horizontal drainage branch pipe at the second or third floor and within 400 mm from the vertical drainage pipe.

3. A building sanitary drainage system with pressure monitoring and automatic balancing system according to claim 1 or 2, characterized in that: The controller is a PLC controller.

4. A building sanitary drainage system with pressure monitoring and automatic balancing system according to claim 3, characterized in that: The electromagnetic valve (25) is an electromagnetic butterfly valve.

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