Building toilet peculiar smell discharging prevention system
By using vertical pipes and suction fan systems in building buildings and combined with air pressure sensor control, the problem of unefficient odor in bathroom cannot be discharged, and the noise and odor emissions are prevented while preventing odor from overflowing, solving the problem of reodor in buildings. .
Patent Information
- Application Number
- CN202420346413.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-02-26
- Publication Date
- 2024-12-10
- Estimated Expiration
- 2034-02-26
AI Technical Summary
In existing buildings, the bathroom reodor problem is due to the loss of odor isolation effect of the water seal floor drain, the obstruction of debris, and the inadequate wind pressure of the sewer, which makes the odor unable to be effectively discharged, resulting in indoor air pollution and difficulty in escaping fires.
The sewage discharge pipe under the building is used to combine the vertical discharge pipe with the suction and exhaust fan. The air pressure is detected in real time through the air pressure sensor, the operation of the suction and exhaust fan is controlled, and the negative pressure in the vertical discharge pipe is maintained to prevent odor from overflowing and effectively discharged.
It prevents odor from overflowing from the sewer into the room, reduces odor emissions and noise, significantly improves the effect of odor prevention and discharge, and solves the problem of odor reflux in the sewer mouth of the entire building.
Smart Images
Figure CN222140219U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a building odor prevention and exhaust device, in particular to a building toilet odor prevention and exhaust system. Background Art
[0002] Existing buildings, especially office buildings and residential buildings, have the problem of toilet odor. The root cause is: the existing water-sealed floor drain will lose its odor-isolating function due to water drying up or low water level or excessive wind pressure in the sewer; the existing magnetic suction, gravity, and spring-sealed floor drains are prone to odor-returning leaks due to debris blocking the closure; in addition, the odor-isolating device installed in the sewer of the bathroom washbasin will cause odor return due to the accumulation of debris that is not easy to clean.
[0003] There is an automatic smoke exhaust system for buildings with a document number of CN205189363U, which includes a straight pipe that runs through each floor of the building, the upper end of the straight pipe is opened on the roof of the building, and a straight or connected lower end opening is provided at the lower end of the straight pipe, and the lower end opening is the lower end convection port of the straight pipe. The straight pipe is an oil smoke exhaust channel, and the oil smoke exhaust channel has an opening reserved in each floor of the building. An extension section is added at the bottom of the oil smoke exhaust channel, and the extension section is set in the basement of the building. The upper end of the extension section is connected to the opening opened in the floor slab of the first floor of the building, and the lower end of the extension section is connected to a support extending from the basement wall, and a lower vent is opened on the side wall of the extension section. The straight-through pipe is a bathroom exhaust passage, and an opening is reserved in the bathroom of each floor of the building. An extension section is added at the bottom of the bathroom exhaust passage, and the extension section is arranged in the basement of the building. The upper end of the extension section is connected to the opening opened in the floor slab of the first floor of the building, and the lower end of the extension section is connected to a support extending from the basement wall, and a lower vent is opened on the side wall of the extension section. The straight-through pipe is a fire exhaust duct, and an opening is reserved on the wall of the stairwell of each floor of the building. An extension section is added at the bottom of the fire exhaust duct, and the extension section is arranged in the basement of the building. The upper end of the extension section is connected to the opening opened in the floor slab of the first floor of the building, and the lower end of the extension section is connected to a support extending from the basement wall, and a lower vent is opened on the side wall of the extension section. The straight-through pipe is a sewer pipe, which has an opening reserved in the bathroom of each household on each floor of the building. A tee is connected to the horizontal section of the sewer pipe leading to the inspection well outside the building, and a vertical extension pipe is connected to the upper opening of the tee. The upper end of the extension pipe is opened on the upper part of the ground outside the outer wall of the building, forming a lower vent of the sewer pipe. By arranging straight or connected lower end openings at the lower ends of the ventilation duct system, fire smoke exhaust duct system and sewer system in the existing building, the lower end convection openings of the above-mentioned straight ducts are formed, so that the original ventilation duct system, fire smoke exhaust duct system and sewer system with one end closed can be transformed into a convection path that is connected from top to bottom. By utilizing the convection effect, a straight duct in the building with good exhaust function can be formed, so that the fumes in the kitchen, the odor in the bathroom and the fire smoke in the corridor can be quickly and directly discharged, thereby completely solving the problems of indoor air pollution and difficulty in fire escape caused by the inability of the ventilation duct system, fire smoke exhaust duct system and sewer system in the existing building to automatically exhaust smoke.
[0004] However, the power of the above-mentioned convective smoke exhaust comes from the rising force of hot air with light specific gravity. This rising force often loses its effect due to the small temperature difference and insufficient lift. It is also weakened by the increased resistance of the accumulated smoke duct dirt. It can also fail to generate lift because the air sucked in from the bottom is lower than the top temperature. For example, in an environment where the temperature is significantly higher than the ground temperature, the temperature of the lower floor will be significantly lower than the temperature of the upper part of the building due to the heat absorption of the low ground temperature, so the convective smoke exhaust power will not or will not be formed easily. In addition, in a low-pressure climate environment, the formation of convection will also be affected. Although termite piles can also form effective air renewal by convection, there is a continuous biomass heat source inside the termite piles to provide rising power for convection. The additional booster air inlet at the bottom of the sewer cannot be set because it emits odor in the reverse direction when not inhaling. More especially, under strong convection conditions, the rooftop, which will transport a large amount of ozone from the sewer or even the septic tank, will inevitably affect the high-rise buildings and the upper urban atmospheric environment. Utility Model Content
[0005] The purpose of the utility model is to overcome the above-mentioned defects of the prior art and provide a building toilet odor prevention and drainage system, which can not only prevent the odor from overflowing from the sewer into the room, but also drain the odor from the toilet and other sewer indoor spaces.
[0006] To achieve the above-mentioned purpose, the utility model of the building bathroom odor prevention and exhaust system is special in that the water seal odor isolation device connected to the sewage main pipe under the building is connected upward to the vertical pipes connected to the sewer pipes on each floor, and the top section of the vertical pipe or the top vertical pipe connected upward is provided with a suction and exhaust fan for maintaining negative pressure in the sewer pipe, and an air pressure sensor for directly or indirectly electrically connecting and controlling the suction and exhaust fan is provided in the vertical pipe below the suction and exhaust fan. The air pressure sensor is used to detect the air pressure in the vertical pipe in real time and control the suction and exhaust fan. The suction and exhaust fan sucks air to keep the air pressure in the vertical pipe lower than the atmospheric pressure of the space where the sewer pipe openings on each floor are located, thereby preventing the odor from overflowing from the sewer to the open room, and can also discharge the odor in the bathroom and other sewer opening indoor spaces. Compared with the top section of the main body vertical pipe, the top vertical pipe extending upward has a looser setting freedom and is easier to be set into a form that is more in line with the upper exhaust.
[0007] As an optimization, when the air pressure in the vertical pipe sensed by the air pressure sensor is higher than the set high value, the suction and exhaust fan is started; when the air pressure in the vertical pipe sensed by the air pressure sensor is lower than the set low value, the suction and exhaust fan is turned off; when the air pressure in the vertical pipe is between the set high value and the set low value, it can ensure that there is sufficient negative pressure to ensure odor prevention and exhaust, and ensure that the water seal of the water seal odor isolation device will not be broken.
[0008] Or the suction and exhaust fan is a frequency-modulated variable speed fan. When the air pressure in the vertical pipes sensed by the air pressure sensor is higher than the set high value, the speed of the suction and exhaust fan is increased; when the air pressure in the vertical pipes sensed by the air pressure sensor is lower than the set low value, the speed of the suction and exhaust fan is reduced; when the air pressure in the vertical pipes sensed by the air pressure sensor is within a set range narrower than the set high value to the set low value, the suction and exhaust fan is turned off. In this way, the air pressure control accuracy is higher.
[0009] As an optimization, the water-sealed odor-isolating device is a box body that is sealed and connected between the upper opening of the horizontal sewage main pipe and the outer periphery of the lower end of the vertical pipe, and an upper open barrel body with an upper end higher than the lower end of the lower pipe is arranged in the middle between the lower pipe extending from the lower end of the vertical pipe into the box and the upper opening and the inner cavity of the box. The box body is sealed and connected between the upper opening of the horizontal sewage main pipe and the outer periphery of the lower end of the vertical pipe to ensure that no odor is emitted to the outside. The upper open barrel body with an upper end higher than the lower end of the lower pipe is arranged in the middle between the lower pipe extending from the lower end of the vertical pipe into the box and the upper opening and the inner cavity of the box, which can not only allow the downstream sewage to pass through, but also prevent the odor in the horizontal sewage main pipe from overflowing, and can also keep a certain negative pressure in the vertical pipe by closing up and down.
[0010] As an optimization, the upper open barrel body is connected to the lower extension pipe or the inner cavity of the box through a water-permeable support mechanism. It can be set up according to needs, which can be both water-permeable and supportive. The sewer pipe includes the sewer pipe of the toilets on each floor. The toilet includes toilets, shower rooms, washrooms, balconies with floor drains and other indoor spaces with sewer pipes. The upstream discharge devices connected to the sewer pipe of the toilet include flush toilets, washbasins, floor drains, washing machine drains, etc.
[0011] As an optimization, the sewer pipes include sewer pipes for toilets on each floor; the upper end of the top section of the vertical pipe or the upper end of the top vertical pipe is extended upward to an inclined upward pipe with a check valve and a rain cap, so that the check valve can prevent the vertical pipe from backflowing downward when the fan is stopped, thereby preventing the sewer odor from overflowing into the room in the shutdown state. Compared with straight vertical pipes, inclined upward pipes are easier to discharge in a directional manner and to be equipped with rain caps. The check valve is a rotating buckle-down hinged damper arranged at the edge joint between the inclined upward pipe and the upper end of the top section of the vertical pipe or the upper end of the top vertical pipe.
[0012] As an optimization, an odor treatment device is installed in series on the pipeline between the air pressure sensor and the suction and exhaust fan. The deodorizing device of the odor treatment device can be an ozone generator that spreads ozone into the vertical pipes, or it can be an ultraviolet disinfection lamp installed in the vertical pipes. The deodorizing device is preferably an ozone generator and an ultraviolet disinfection lamp installed together.
[0013] As an optimization, silencers are installed in the vertical pipes below the exhaust fan or silencers are installed in the vertical pipes above and below the exhaust fan. This can reduce the impact of fan noise on the building.
[0014] As an optimization, the air pressure sensor is electrically connected to control the suction and exhaust fan through an intelligent controller, and the vertical pipe bypass between the air pressure sensor and the suction and exhaust fan is connected to a supply air branch pipe with an electrically controlled damper for reducing odor emission, and the electrically controlled damper is electrically connected to control the suction and exhaust fan through the intelligent controller. In this way, by bypassing the supply air, the fan control can be simplified, and the odor emission in the vertical pipe can be significantly reduced; that is, when the air pressure in the vertical pipe is higher than the set pressure value, the electrically controlled damper is adjusted down or closed, and when the air pressure in the vertical pipe is lower than the set pressure value, the electrically controlled damper is adjusted up or opened, because adjusting the opening of the electrically controlled damper is much simpler and more reliable than adjusting the speed of the suction and exhaust fan. In addition, the introduction of the supply air branch pipe with an electrically controlled damper can keep the suction and exhaust fan in the best working condition by adjusting the supply air, reduce noise, and extend the service life of the fan by optimizing the fan working condition, thereby reducing the fan configuration cost.
[0015] As an optimization, the air supply branch pipe is composed of a horizontal base section connected to the vertical pipe bypass and an obliquely upward extension section extending obliquely upward from the end of the horizontal base section. The upper end of the obliquely upward extension section is provided with a rainproof cap opening to one side; the setting of the obliquely upward extension section is more conducive to the setting of the rainproof cap. Preferably, the air supply branch pipe is composed of a horizontal base section connected to the vertical pipe bypass, a vertical section extending vertically upward from the end of the horizontal base section, and an obliquely upward extension section extending obliquely upward from the upper end of the vertical section. The vertical section occupies less space while meeting the height requirements. The horizontal base section is conducive to keeping the air inlet of the air supply branch pipe away from the exhaust port of the vertical pipe, which is conducive to reducing the resonance noise of the inlet and outlet air.
[0016] As an optimization, the air supply branch pipe; the suction and exhaust fan is a silent fan; when the air pressure in the vertical pipe sensed by the air pressure sensor is higher than the set high value, the electric control damper is opened; when the air pressure in the vertical pipe sensed by the air pressure sensor is lower than the set low value, the electric control damper is closed; when the electric control damper is opened for operation, the opening of the electric control damper is correspondingly reduced or increased according to the high and low air pressure in the vertical pipe sensed by the air pressure sensor, so that the air pressure in the vertical pipe sensed by the air pressure sensor is always in a set range narrower than the set high value to the set low value range. This can significantly optimize the odor prevention and exhaust quality. Because the silent quality of the silent fan is closely related to its speed working condition, in this way, without adjusting the fan speed, the ideal air pressure in the vertical pipe is maintained by adjusting the electric control damper arranged in the air supply branch pipe, which can significantly reduce the odor discharge in the vertical pipe, and significantly reduce the fan noise by ensuring the ideal working condition of the silent fan.
[0017] It takes the entire building as a system to solve the odor problem of all residents on all floors of the entire building. The original sewage pipe can be used to reduce the cost of installation and use. The suction and exhaust fan, air pressure sensor, intelligent controller, odor treatment device and air supply branch pipe section with electronically controlled adjustable damper are jointly arranged in an ozone adjustment box, which is convenient for design, manufacture and installation. The ozone adjustment box controls the pressure in the sewage pipe at minus 30-50 Pa through a silent fan. It can neither destroy the water seal of the water seal odor isolation device nor ensure that the entire system is always in a suitable negative pressure state. The negative pressure value is adjusted by the electronically controlled adjustable damper, and the start and stop of the system is controlled by the air pressure sensor according to the measured air pressure. The vertical pipes of the system are always operated at a pressure of minus 30-50 Pa. During operation, the leakage points where all sewage pipes in each room are connected to the sanitary ware are always under negative pressure.
[0018] After adopting the above technical scheme, the utility model has the advantages of preventing odor from overflowing from the sewer to the open indoor space, and can also discharge odor from the bathroom and other indoor spaces with sewer openings, and has small external exhaust volume and low operating noise, good odor prevention and drainage quality and effect, and solves the problem of odor return from all sewer outlets in the entire building. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 It is a structural schematic diagram of the first embodiment of the utility model of the building toilet odor prevention and exhaust system. Figure 2 It is a structural schematic diagram of a second embodiment of the utility model of the building toilet odor prevention and exhaust system. DETAILED DESCRIPTION
[0020] Embodiment 1, as Figure 1 As shown, the utility model building toilet odor prevention and drainage system is a water seal odor isolation device 2 connected to the sewage main pipe 1 under the building upwardly connected to the vertical pipe 4 connected to the sewer pipe 3 of each floor, the top section of the vertical pipe 4, or the top vertical pipe connected to the vertical pipe 4 upwardly, is provided with a suction and exhaust fan 5 for maintaining negative pressure in the sewer pipe 3, and an air pressure sensor 6 for directly or indirectly electrically controlling the suction and exhaust fan 5 is provided in the vertical pipe 4 below the suction and exhaust fan 5. The air pressure sensor is used to detect the air pressure in the vertical pipe in real time and control the suction and exhaust fan. The suction and exhaust fan sucks air to keep the air pressure in the vertical pipe lower than the atmospheric pressure of the space where the sewer pipe openings on each floor are located, thereby preventing the odor from overflowing from the sewer to the open room, and also can discharge the odor in the toilet and other sewer opening indoor spaces. Compared with the top section of the vertical pipe of the main body, the top vertical pipe extending upwardly has a looser setting freedom and is easier to be set into a form that is more in line with the upper exhaust.
[0021] Specifically, when the air pressure in the vertical pipe 4 sensed by the air pressure sensor 6 is higher than the set high value, the suction and exhaust fan 5 is started; when the air pressure in the vertical pipe 4 sensed by the air pressure sensor 6 is lower than the set low value, the suction and exhaust fan 5 is turned off; it can also be: the suction and exhaust fan 5 is a frequency-modulated variable-speed fan, when the air pressure in the vertical pipe 4 sensed by the air pressure sensor 5 is higher than the set high value, the speed of the suction and exhaust fan 5 is increased; when the air pressure in the vertical pipe 4 sensed by the air pressure sensor 6 is lower than the set low value, the speed of the suction and exhaust fan 5 is reduced; when the air pressure in the vertical pipe 4 sensed by the air pressure sensor 6 is located in a set interval narrower than the set high value to the set low value, the suction and exhaust fan 5 is turned off.
[0022] Specifically, the water-sealed odor-isolating device 2 is a box body sealed between the upper opening of the horizontal sewage main pipe 1 and the outer periphery of the lower end of the vertical pipe 4, and an upper open barrel body with an upper end higher than the lower end of the lower pipe is arranged in the middle between the lower extension pipe extending from the lower end of the vertical pipe 4 into the box body and the upper opening and the inner cavity of the box body. The upper open barrel body is connected to the lower extension pipe or the inner cavity of the box body through a water-permeable support mechanism.
[0023] Specifically, the sewer pipe 3 includes sewer pipes for toilets on each floor. The upstream discharge devices connected to the sewer pipes for toilets include flush toilets, wash basins, and floor drains.
[0024] Embodiment 2, as Figure 2 As shown, the difference between the utility model building toilet odor prevention and exhaust system and the above-mentioned embodiment 1 is that: an odor treatment device 7 is arranged in series on the pipeline between the air pressure sensor 6 and the suction and exhaust fan 5. The deodorizing device of the odor treatment device can be an ozone generator that spreads ozone into the vertical pipes, or it can be an ultraviolet disinfection lamp arranged in the vertical pipes. The deodorizing device is preferably an ozone generator and an ultraviolet disinfection lamp that are arranged together. The vertical pipes 4 above and below the suction and exhaust fan 5 are respectively provided with silencers 70. It is also possible to set a silencer on the vertical pipes below the suction and exhaust fan.
[0025] Specifically, the air pressure sensor 6 is electrically connected to control the suction and exhaust fan 5 through the intelligent controller 60. The vertical pipe 4 between the air pressure sensor 6 and the suction and exhaust fan 5 is bypassed and connected to an air supply branch pipe 9 equipped with an electrically controlled adjustable damper 91 for reducing odor emission. The electrically controlled adjustable damper 91 is electrically connected to control the suction and exhaust fan 5 through the intelligent controller 60.
[0026] The sewer pipe 3 includes sewer pipes for toilets on each floor, and the upper end of the top section of the vertical pipe 4 or the upper end of the top vertical pipe is extended upward to the oblique upper pipe 8 with a check valve 81. The check valve 81 is a rotating buckle-down hinged damper arranged at the edge joint of the oblique upper pipe and the upper end of the top section of the vertical pipe or the upper end of the top vertical pipe.
[0027] Specifically, the suction and exhaust fan 5 is a silent fan; when the air pressure in the vertical pipe 4 sensed by the air pressure sensor 6 is higher than the set high value, the electrically controlled adjustable damper 91 is opened; when the air pressure in the vertical pipe 4 sensed by the air pressure sensor 6 is lower than the set low value, the electrically controlled adjustable damper 91 is closed; when the electrically controlled adjustable damper 91 is opened for operation, the opening of the electrically controlled adjustable damper 91 is correspondingly reduced or increased according to the high and low air pressure in the vertical pipe 4 sensed by the air pressure sensor 6, so that the air pressure in the vertical pipe 4 sensed by the air pressure sensor 6 is always in a set range narrower than the set high value to set low value range.
[0028] In short, the utility model of the building bathroom odor prevention and drainage system has the advantages of preventing odor from overflowing from the sewer into the open indoor space, and can also discharge odor from the bathroom and other indoor spaces with sewer openings, and has the advantages of small external exhaust volume and low operating noise, good odor prevention and drainage quality, and solves the problem of odor return from all sewer outlets in the entire building.
Claims
1. A building toilet odor prevention system, characterized in that The water-sealed odor-isolating device connected to the sewage main under the building is upwardly connected to the vertical pipes connected to the sewer pipes on each floor; the top section of the vertical pipe or the top vertical pipe connected upward is provided with a suction and exhaust fan for maintaining negative pressure in the sewer pipe; an air pressure sensor for directly or indirectly electrically controlling the suction and exhaust fan is provided in the vertical pipe below the suction and exhaust fan.
2. According to claim 1, the building toilet odor prevention system is characterized in that When the air pressure in the pipeline sensed by the air pressure sensor is higher than the set high value, the suction and exhaust fan is started; when the air pressure in the pipeline sensed by the air pressure sensor is lower than the set low value, the suction and exhaust fan is turned off; Alternatively, the suction and exhaust fan is a frequency-modulated variable-speed fan. When the air pressure in the pipeline sensed by the air pressure sensor is higher than a set high value, the speed of the suction and exhaust fan is increased; when the air pressure in the pipeline sensed by the air pressure sensor is lower than a set low value, the speed of the suction and exhaust fan is reduced; when the air pressure in the pipeline sensed by the air pressure sensor is within a set range narrower than the set high value to the set low value, the suction and exhaust fan is turned off.
3. The building toilet odor prevention system according to claim 1 is characterized in that The water-sealed odor-isolating device is a box body that is sealed and connected between the upper opening of the horizontal sewage main pipe and the outer periphery of the lower end of the vertical pipe, and an upper open barrel body with an upper end higher than the lower end of the lower extension pipe is arranged in the middle between the lower extension pipe extending from the lower end of the vertical pipe into the box body and the upper opening and the inner cavity of the box body.
4. The building toilet odor prevention system according to claim 3 is characterized in that The upper open barrel body is connected to the lower extension pipe or the inner cavity of the box body through a water-permeable support mechanism.
5. The building toilet odor prevention system according to claim 1 is characterized in that The sewer pipes include sewer pipes of toilets on each floor, and the upper end of the top section of the vertical pipe or the upper end of the top vertical pipe is extended upward to be connected to an inclined upward pipe with a check valve and a rain cap.
6. The building toilet odor prevention system according to claim 1 is characterized in that An odor treatment device is serially arranged on the pipeline between the air pressure sensor and the suction and exhaust fan.
7. The building toilet odor prevention system according to claim 1 is characterized in that A silencer pipe is arranged on the vertical pipe below the suction and exhaust fan, or silencers are arranged on the vertical pipes above and below the suction and exhaust fan respectively.
8. The building toilet odor prevention system according to claim 1 is characterized in that The air pressure sensor is electrically connected to control the suction and exhaust fan through an intelligent controller. The vertical pipe bypass between the air pressure sensor and the suction and exhaust fan is connected to an air supply branch pipe with an electrically controlled adjustable damper for reducing odor emission. The electrically controlled adjustable damper is electrically connected to control the suction and exhaust fan through the intelligent controller.
9. The building toilet odor prevention system according to claim 8, characterized in that The air supply branch pipe is composed of a horizontal base section connected to the vertical pipe bypass and an obliquely upward extension section extending obliquely upward from the end of the horizontal base section. A rain cap opening to one side is arranged at the upper end of the obliquely upward extension section.
10. The building toilet odor prevention system according to claim 8, characterized in that The suction and exhaust fan is a silent fan; when the air pressure in the vertical pipes sensed by the air pressure sensor is higher than the set high value, the electrically controlled adjustable damper is opened; when the air pressure in the vertical pipes sensed by the air pressure sensor is lower than the set low value, the electrically controlled adjustable damper is closed; when the electrically controlled adjustable damper is opened for operation, the opening of the electrically controlled adjustable damper is correspondingly reduced or increased according to the high and low air pressure in the vertical pipes sensed by the air pressure sensor, so that the air pressure in the vertical pipes sensed by the air pressure sensor is always in a set range narrower than the set high value to set low value range.