Negative pressure collecting and discharging system and sewage discharging room
The negative pressure collection and discharge system uses negative pressure to drive sewage to the collection and discharge transfer box and discharges it by gravity, which solves the problems of difficulty and high cost in setting up traditional sewage systems in limited space or special places, and achieves efficient and low-cost sewage discharge.
Patent Information
- Application Number
- CN202422823287.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-19
- Publication Date
- 2025-11-11
- Estimated Expiration
- 2034-11-19
AI Technical Summary
Existing sewage systems are difficult and costly to install in spaces with limited space or in special locations, especially in ships, carriages and RVs. Traditional gravity sewage discharge methods or vacuum collection and discharge technologies have problems such as large space occupation, high installation difficulty and high maintenance costs.
The negative pressure collection and discharge system uses a combination of a negative pressure generator, negative pressure main pipe, sewage branch pipe, collection and discharge transfer box and sewage terminal pipe to drive sewage to the collection and discharge transfer box by negative pressure, and then discharge it by gravity. This avoids raising the toilet and setting up additional structures, reducing system complexity and cost.
It enables efficient waste discharge without raising the toilet, reducing the difficulty of system setup and operating costs, while also being highly adaptable and reducing equipment maintenance requirements.
Smart Images
Figure CN223535827U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of sanitary ware equipment technology, and in particular to a negative pressure collection and drainage system and sanitary ware. Background Technology
[0002] Currently, in locations requiring sewage discharge, the mainstream method is gravity-based discharge. A drain riser is installed directly beneath the sanitary fixtures, and water flow carries waste downwards through the riser for discharge. To reduce the risk of blockage, the drain riser's diameter must be at least 110mm, while the main pipe is typically 160mm-200mm. This not only occupies a large space but also presents significant installation challenges. Furthermore, when excavation for pipe installation is not feasible beneath the fixtures, multiple steps are needed to elevate them to meet gravity-based discharge requirements, further increasing costs. For certain facilities, such as ships, vehicles, and RVs, with even greater design constraints, vacuum collection and discharge technology is required. This technology is not only expensive to build but also incurs high maintenance costs.
[0003] Therefore, how to reduce the difficulty and cost of setting up a sewage system is a technical problem that urgently needs to be solved by those skilled in the art. Utility Model Content
[0004] In view of this, the purpose of this utility model is to provide a negative pressure collection and discharge system to reduce the difficulty and cost of setting up a sewage system.
[0005] Another objective of this invention is to provide a sewage room that includes the aforementioned negative pressure collection and drainage system.
[0006] To achieve the above objectives, this utility model provides the following technical solution:
[0007] A negative pressure manifold system, comprising:
[0008] A negative pressure generator is connected to a negative pressure main pipe, and several sewage branch pipes are connected to the negative pressure main pipe. Each sewage branch pipe is equipped with a sewage collection and transfer box, the cross-sectional area of which is larger than that of the sewage branch pipe. An on / off valve is installed on the sewage branch pipe upstream of the sewage collection and transfer box. The sewage collection and transfer box is connected to a sewage terminal pipe, which is used to connect to a toilet.
[0009] The main sewage pipe is connected to each of the sewage branch pipes and the outlet of the main sewage pipe is connected to the sewage discharge site. The vertical height of the main sewage pipe is lower than that of the sewage branch pipes.
[0010] Preferably, in the above-mentioned negative pressure collection and discharge system, a first one-way valve is provided on the sewage branch pipe. The first one-way valve is located between the sewage collection and discharge transfer box and the sewage discharge main pipe and is connected to the flow direction of the sewage collection and discharge transfer box toward the sewage discharge main pipe.
[0011] Preferably, the above-mentioned negative pressure collection and discharge system further includes a control box, which is electrically connected to the negative pressure generator, the on / off valve and the first one-way valve. When the control box is performing the suction action, it opens the negative pressure generator and the on / off valve and closes the first one-way valve; when the control box is performing the discharge action, it closes the negative pressure generator and the on / off valve and opens the first one-way valve.
[0012] Preferably, the above-mentioned negative pressure collection and drainage system further includes an infrared sensor electrically connected to the control box. The infrared sensor is used to sense a human body at the location of the toilet. After the infrared sensor senses that the human body has left the location of the toilet, it feeds back to the control box to perform the action of sucking up the waste, and after a preset time, it feeds back to the control box to perform the action of discharging the waste.
[0013] Preferably, in the above-mentioned negative pressure collection and drainage system, the preset duration is 4s-6s.
[0014] Preferably, in the above-mentioned negative pressure collection and drainage system, a steam-water separator is provided on the negative pressure main pipe near the negative pressure generator, and the gas outlet of the steam-water separator is connected to the negative pressure generator, while the liquid outlet of the steam-water separator is connected to the sewage main pipe through a bypass pipe. A second one-way valve is provided on the bypass pipe to connect the flow direction of the steam-water separator toward the sewage main pipe.
[0015] Preferably, in the above-mentioned negative pressure collection and discharge system, a waste gas treatment machine is also provided at the outlet of the negative pressure generator.
[0016] Preferably, in the above-mentioned negative pressure collection and drainage system, after the infrared sensor detects that a human body has arrived at the toilet, it feeds back to the water supply system of the toilet to perform a wall-lubricating cleaning action on the toilet.
[0017] Preferably, in the above-mentioned negative pressure collection and drainage system, the diameter of the sewage terminal pipe is 40mm-60mm.
[0018] A sewage room includes a water supply system, toilets, and a negative pressure collection and drainage system as described in any of the above embodiments. The toilets are provided in a plurality of locations, and each toilet is connected to a sewage terminal pipe in the negative pressure collection and drainage system. The water supply system is connected to each toilet to wet and flush the toilet.
[0019] As can be seen from the above technical solution, the negative pressure collection and drainage system provided by this utility model is connected in stages via a negative pressure generator, including a negative pressure main pipe, a sewage branch pipe, a collection and drainage transfer box, and a sewage terminal pipe. The sewage terminal pipe is connected to the toilet so that when the negative pressure generator is activated, the waste in the toilet is sucked into the collection and drainage transfer box. This process is driven by negative pressure, so there is no need to raise the toilet or place the sewage terminal pipe directly below the toilet. In fact, to reduce the risk of backflow, the collection and drainage transfer box is preferably set at a height higher than the toilet. At the same time, the bottom of the sewage branch pipe is connected to the sewage main pipe. The negative pressure generator only needs to suck the waste in the toilet into the collection and drainage transfer box. The waste in the collection and drainage transfer box can move to the sewage main pipe under the action of gravity and be discharged in the sewage main pipe. The aforementioned negative pressure collection and drainage system is highly adaptable and does not require any additional structural modifications to the toilet. Instead, it achieves the discharge of waste from the toilet through the combined action of the negative pressure main pipe and the sewage main pipe. At the same time, the negative pressure generator does not need to be constantly turned on; it only needs to draw the waste from the toilet into the collection and sewage transfer box, and then use gravity to move the waste to the sewage main pipe for discharge, thereby reducing the operating cost of the negative pressure collection and drainage system. Attached Figure Description
[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0021] Figure 1 A schematic diagram of the negative pressure collection and drainage system provided in this embodiment of the utility model.
[0022] Among them, 10-negative pressure generator; 110-sewage gas treatment machine; 20-negative pressure main pipe; 30-sewage branch pipe; 310-sewage collection and discharge transfer box; 320-opening and closing valve; 330-sewage terminal pipe; 340-first one-way valve; 40-toilet; 50-sewage main pipe; 60-control box; 70-infrared sensor; 80-gas-water separator; 90-bypass pipe; 910-second one-way valve. Detailed Implementation
[0023] The core of this utility model lies in disclosing a negative pressure collection and discharge system to reduce the difficulty and cost of setting up a sewage system.
[0024] Another key aspect of this invention is providing a sewage room that includes the aforementioned negative pressure collection and drainage system.
[0025] To enable those skilled in the art to better understand the present invention, embodiments of the present invention will be described below with reference to the accompanying drawings. Furthermore, the embodiments shown below do not limit the scope of the invention as described in the claims. Additionally, the complete contents of the configurations shown in the following embodiments are not limited to those necessary for the solution of the invention as described in the claims.
[0026] like Figure 1 As shown in the figure, the negative pressure collection and drainage system provided in this embodiment of the utility model mainly includes a negative pressure generator 10, a negative pressure main pipe 20, and a sewage main pipe 50. The negative pressure generator 10 is connected to the negative pressure main pipe 20 to create a negative pressure environment within the negative pressure main pipe 20 when the negative pressure generator 10 is started. It should be noted that the negative pressure generator 10 is a device that generates airflow based on the principle of negative pressure. Its working principle is to use an electric motor or fan to generate negative pressure, that is, to generate a lower air pressure inside the machine. When the pressure inside the machine is lower than atmospheric pressure or the pressure of the surrounding environment, it can guide external air to flow along the negative pressure main pipe 20 into the negative pressure generator 10. Based on this, several sewage branch pipes 30 are connected to the negative pressure main pipe 20. When the negative pressure main pipe 20 is started, both the negative pressure main pipe 20 and the sewage branch pipes 30 connected to it are in a negative pressure state.
[0027] Based on this, taking a single sewage branch pipe 30 as an example, a sewage collection and transfer box 310 is installed on the single sewage branch pipe 30. The sewage collection and transfer box 310 is connected to a sewage terminal pipe 330, which is used to connect to the toilet 40. The above-mentioned connection structure can suck up the sewage in the toilet 40 through the negative pressure state of the negative pressure main pipe 20, sewage branch pipe 30 and sewage terminal pipe 330 when the negative pressure generator 10 is started. It should also be noted that since the sewage terminal pipe 330 and the sewage collection and transfer box 310 are directly connected, the sewage... The waste drawn from the toilet 40 by the sewage terminal pipe 330 will first reach the sewage collection and transfer box 310. However, the negative pressure collection and discharge system provided in this embodiment of the utility model also sets the cross-sectional area of the sewage collection and transfer box 310 to be larger than that of the sewage branch pipe 30 in the axial direction of the sewage branch pipe 30. This is so that the negative pressure generator 10 can only draw the waste in the toilet 40 into the sewage collection and transfer box 310 area through the sewage terminal pipe 330 and temporarily store it, and will not draw the waste in the sewage collection and transfer box 310 area into the negative pressure main pipe 20 through the sewage branch pipe 30.
[0028] It should be noted that each sewage branch pipe 30 is also equipped with an on / off valve 320. The on / off valve 320 is located upstream of the sewage collection and transfer box 310 in the sewage branch pipe 30 to control the connection between the sewage collection and transfer box 310 and the negative pressure main pipe 20. By adjusting the opening and closing of the on / off valve 320, the corresponding sewage collection and transfer box 310 can achieve a negative pressure state, thus ensuring that when multiple sewage branch pipes 30 are set on a single negative pressure main pipe 20, each sewage branch pipe 30 can independently achieve a negative pressure state, thereby satisfying the suction state of a single sewage collection and transfer box 310 for the sewage in the toilet 40.
[0029] It should be noted that multiple sewage terminal pipes 330 are set according to the number of toilets 40, that is, each sewage terminal pipe 330 needs to be set in a one-to-one correspondence with a toilet 40. A single sewage collection and transfer box 310 can be connected to one or more sewage terminal pipes 330 according to its capacity. Under the condition that cost and structure allow, it is preferable for a single sewage collection and transfer box 310 to be connected to one sewage terminal pipe 330 to reduce the risk of sewage blockage in the pipeline.
[0030] Meanwhile, the main sewage pipe 50 is connected to each branch sewage pipe 30. The branch sewage pipe 30 is set at a lower vertical height than the main sewage pipe 50. The sewage collected by the sewage transfer box 310 from the toilet 40 can be directly discharged through the branch sewage pipe 30 into the lower vertical sewage pipe 50, and then discharged through the main sewage pipe 50.
[0031] Based on the above embodiments, the negative pressure collection and drainage system provided by this utility model embodiment is connected in stages via a negative pressure generator 10 to a negative pressure main pipe 20, a sewage branch pipe 30, a sewage collection and drainage transfer box 310, and a sewage terminal pipe 330. The sewage terminal pipe 330 is connected to the toilet 40 so that when the negative pressure generator 10 is activated, the sewage in the toilet 40 is drawn into the sewage collection and drainage transfer box 310. This process is driven by negative pressure and does not require raising the toilet 40 or having the sewage discharged. The waste terminal pipe 330 is located directly below the toilet 40. In order to reduce the risk of backflow, the waste collection and transfer box 310 is preferably set at a height higher than the toilet 40. At the same time, the bottom end of the waste branch pipe 30 is connected to the waste main pipe 50. The negative pressure generator 10 only needs to draw the waste in the toilet 40 into the waste collection and transfer box 310. The waste in the waste collection and transfer box 310 can move to the waste main pipe 50 under the action of gravity and be discharged in the waste main pipe 50. The aforementioned negative pressure collection and drainage system is highly adaptable and does not require additional structural modifications to the toilet 40. Instead, it achieves the discharge of waste from the toilet 40 through the combined action of the negative pressure main pipe 20 and the sewage main pipe 50. At the same time, the negative pressure generator 10 does not need to be constantly on; it only needs to draw the waste from the toilet 40 into the collection and sewage transfer box 310, and then the waste can be moved to the sewage main pipe 50 and discharged by gravity, thereby reducing the operating cost of the negative pressure collection and drainage system.
[0032] Furthermore, to improve the operational stability of the negative pressure collection and drainage system, in some embodiments of this utility model, a first one-way valve 340 is also provided on the sewage branch pipe 30. The first one-way valve 340 is specifically located between the sewage collection and drainage transfer box 310 and the sewage main pipe 50. The first one-way valve 340 is connected from the sewage collection and drainage transfer box 310 towards the sewage main pipe 50, to prevent sewage in the sewage main pipe 50 from being drawn into the sewage collection and drainage transfer box 310 from the sewage branch pipe 30. It should be noted that the first one-way valve 340 can also increase the vacuum degree of the sewage collection and drainage transfer box 310 when sucking up sewage from the toilet 40, thereby improving the sewage suction effect of the sewage terminal pipe 330.
[0033] Based on the above embodiments, in order to improve the ease of operation of the negative pressure manifold system, in some embodiments of this utility model, the negative pressure manifold system also includes a control box 60 for adjusting the operating status of components. Specifically, the control box 60 is electrically connected to the negative pressure generator 10, the on / off valve 320, and the first one-way valve 340. It should be noted that in this embodiment, the on / off valve 320 and the first one-way valve 340 are both solenoid valves, and the electrical connection here specifically refers to the signal connection, that is, the control box 60 can adjust the operating status of the on / off valve 320 and the first one-way valve 340 by sending signals. Based on this, when the negative pressure collection and drainage system needs to suck up the sewage in the toilet 40, the control box 60 turns on the negative pressure generator 10 and the on / off valve 320, and closes the first one-way valve 340 to maintain a good vacuum in the sewage collection and drainage transfer box 310, so that the sewage in the toilet 40 can be smoothly sucked up through the sewage terminal pipe 330 and temporarily stored in the sewage collection and drainage transfer box 310; when the negative pressure collection and drainage system needs to discharge the sewage in the sewage collection and drainage transfer box 310, the control box 60 turns off the negative pressure generator 10 and the on / off valve 320, and opens the first one-way valve 340, so that the sewage in the sewage collection and drainage transfer box 310 can be smoothly moved into the sewage main pipe 50 under the action of gravity.
[0034] It should be noted that the control box 60 provided in the above embodiments can be manually adjusted by the operator or can be automatically controlled. In some embodiments of this utility model, the negative pressure manifold system also includes an infrared sensor 70 electrically connected to the control box 60. Here, electrical connection specifically means that the infrared sensor 70 can feed back an electrical signal to the control box 60. Specifically, the sensing range of the infrared sensor 70 includes at least the front side of the toilet bowl 40. When the infrared sensor 70 senses that a human body has left the toilet bowl 40, and there is waste that needs to be sucked up inside the toilet bowl 40, the infrared sensor 70 will feed back to the control box 60 to perform the action of sucking up the waste. That is, the control box 60 will turn on the negative pressure generator 10 and the on / off valve 320, and close the first one-way valve 340. At the same time, after the infrared sensor 70 senses that the human body has left the toilet bowl 40 for a preset period of time, at which point the human body has had enough time to move away from the toilet bowl 40, and the waste inside the toilet bowl 40 can be successfully sucked into the sewage collection and transfer box 310, the infrared sensor 70 will feed back to the control box 60 to perform the action of discharging the waste. That is, the control box 60 will turn off the negative pressure generator 10 and the on / off valve 320, and open the first one-way valve 340 to discharge the waste in the sewage collection and transfer box 310 into the sewage main pipe 50.
[0035] Furthermore, the above embodiments can automatically adjust the suction and discharge actions of waste through the control box 60. In the above embodiments, the preset duration is set according to the operation needs of the equipment and personnel, preferably 4s-6s, to meet the suction needs of the waste collection and discharge transfer box 310 and the movement needs of personnel.
[0036] Furthermore, considering that the negative pressure generator 10 will also draw in some airflow containing contaminants when it creates a negative pressure environment in the negative pressure main pipe 20, in order to avoid the contaminants from clogging the negative pressure generator 10, in some embodiments of this utility model, a steam-water separator 80 is provided on the negative pressure main pipe 20 near the negative pressure generator 10. It should be noted that the position on the negative pressure main pipe 20 near the negative pressure generator 10 specifically refers to the area of the negative pressure main pipe 20 between the sewage branch pipe 30 closest to the negative pressure generator 10 and the negative pressure generator 10. At the same time, the gas outlet of the steam-water separator 80 is connected to the negative pressure generator 10 so that the negative pressure generator 10 can still successfully produce a negative pressure environment in the negative pressure main pipe 20, while the liquid outlet of the steam-water separator 80 is connected to the sewage main pipe 50 through the bypass pipe 90. Some of the liquid contaminants drawn into the negative pressure main pipe 20 can be discharged into the sewage main pipe 50 along the bypass pipe 90. Furthermore, to prevent the sewage in the main drain pipe 50 from being drawn back or flowing back into the negative pressure main pipe 20 via the bypass pipe 90, a second one-way valve 910 is also provided on the bypass pipe 90. The connection direction of the second one-way valve 910 is the flow direction of the steam-water separator 80 toward the main drain pipe 50.
[0037] Based on the above embodiments, since some pollutant gas will be sucked into the negative pressure generator 10, in order to avoid serious pollution at the outlet of the negative pressure generator 10, a pollutant gas treatment machine 110 is also provided at the outlet of the negative pressure generator 10 to perform adsorption and deodorization operations on the exhaust gas of the negative pressure generator 10.
[0038] In addition, considering the comfort of people using the toilet 40, it is preferable that after the infrared sensor 70 senses that a person has arrived at the toilet 40, it feeds back to the water supply system of the toilet 40 to perform a wall-lubricating cleaning action on the toilet 40.
[0039] Furthermore, in the negative pressure collection and drainage system provided in this embodiment of the utility model, the sewage terminal pipe 330 is driven by negative pressure to absorb sewage, which has a low risk of blockage. Therefore, the pipe diameter of the sewage terminal pipe 330 is preferably set to 40mm-60mm, which is significantly smaller than the pipe diameter of commonly used sewage pipes, thereby reducing the installation cost of the negative pressure collection and drainage system.
[0040] This utility model embodiment also provides a sewage room, which includes a water supply system, a toilet 40, and a negative pressure collection and drainage system provided in any of the above embodiments. It should be noted that several toilets 40 can be set according to usage needs, and each toilet 40 is connected to a sewage terminal pipe 330 in the negative pressure collection and drainage system so that the sewage in the toilet 40 can be sucked up by the negative pressure collection and drainage system. The water supply system is connected to each toilet 40 to wet and flush the toilet 40. It should be noted that the water supply system is the same as the water supply system commonly used in sewage rooms, and will not be described in detail here.
[0041] The terms "first," "second," "left side," and "right side," etc., in the specification, claims, and accompanying drawings of this utility model are used to distinguish different objects, not to describe a specific order. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device that includes a series of steps or units may include steps or units not listed, but rather steps or units not listed.
[0042] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A negative pressure collection and discharging system, characterized in that, include: A negative pressure generator is connected to a negative pressure main pipe, and several sewage branch pipes are connected to the negative pressure main pipe. Each sewage branch pipe is equipped with a sewage collection and transfer box, the cross-sectional area of which is larger than that of the sewage branch pipe. An on / off valve is installed on the sewage branch pipe upstream of the sewage collection and transfer box. The sewage collection and transfer box is connected to a sewage terminal pipe, which is used to connect to a toilet. The main sewage pipe is connected to each of the sewage branch pipes and the outlet of the main sewage pipe is connected to the sewage discharge site. The vertical height of the main sewage pipe is lower than that of the sewage branch pipes.
2. The negative pressure collection and drainage system as described in claim 1, characterized in that, A first one-way valve is installed on the sewage branch pipe. The first one-way valve is located between the sewage collection and transfer box and the sewage main pipe and is connected to the flow direction of the sewage collection and transfer box toward the sewage main pipe.
3. The negative pressure collection and drainage system as described in claim 2, characterized in that, It also includes a control box, which is electrically connected to the negative pressure generator, the on / off valve and the first one-way valve. When the control box is performing the suction action, it turns on the negative pressure generator and the on / off valve and closes the first one-way valve; when the control box is performing the discharge action, it turns off the negative pressure generator and the on / off valve and turns on the first one-way valve.
4. The negative pressure collection and drainage system as described in claim 3, characterized in that, It also includes an infrared sensor electrically connected to the control box. The infrared sensor is used to sense a human body at the location of the toilet. After the infrared sensor senses that a human body has left the location of the toilet, it sends a feedback to the control box to perform a suction action on the waste, and after a preset time, it sends a feedback to the control box to perform a discharge action on the waste.
5. The negative pressure collection and drainage system as described in claim 4, characterized in that, The preset duration is 4s-6s.
6. The negative pressure collection and drainage system as described in claim 1, characterized in that, A steam-water separator is installed on the negative pressure main pipe near the negative pressure generator, and the gas outlet of the steam-water separator is connected to the negative pressure generator. The liquid outlet of the steam-water separator is connected to the sewage main pipe through a bypass pipe. A second one-way valve is installed on the bypass pipe to connect the flow direction of the steam-water separator toward the sewage main pipe.
7. The negative pressure collection and drainage system as described in claim 6, characterized in that, A waste gas treatment machine is also installed at the outlet of the negative pressure generator.
8. The negative pressure collection and drainage system as described in claim 4, characterized in that, After the infrared sensor detects that a human body has arrived at the toilet, it sends a signal to the toilet's water supply system to perform a wall-lubricating and cleaning action on the toilet.
9. The negative pressure collection and drainage system as described in claim 1, characterized in that, The diameter of the sewage discharge terminal pipe is 40mm-60mm.
10. A sewage discharge room, characterized in that, The system includes a water supply system, a toilet, and a negative pressure collection and drainage system as described in any one of claims 1-9, wherein a plurality of toilets are provided and each toilet is connected to a sewage terminal pipe in the negative pressure collection and drainage system, and the water supply system is connected to each toilet to wet and flush the toilet.