CN113026889A

CN113026889A - Suction type micro-water clean and sanitary discharge process and device with front pollution discharge function

Info

Publication number: CN113026889A
Application number: CN202011384928.6A
Authority: CN
Inventors: 钱婷婷; 张玉; 范彬; 陶成俊
Original assignee: Nantong Yongxu Environmental Technology Co ltd; Research Center for Eco Environmental Sciences of CAS
Current assignee: Nantong Yongxu Environmental Technology Co ltd; Research Center for Eco Environmental Sciences of CAS
Priority date: 2020-11-30
Filing date: 2020-11-30
Publication date: 2021-06-25

Abstract

A process and apparatus for constructing a suction-type sanitary drainage system for removing micro-water features that a short negative pressure is generated in the sewage discharger before the suction interface valve to discharge the waste liquid from the sanitary ware into the sewage discharger, and when the suction interface valve is closed, the air pressure in the sewage discharger is quickly balanced with the atmospheric pressure for easy discharge. The invention also provides a dirt discharging device which comprises a cavity, a feed inlet, an air exhaust opening, a baffle plate, a balancing weight and a hinge. The baffle is fixed on the valve body through a hinge, the part of the baffle below the cavity body upwards forms a closed and sealed relation with the lower edge of the cavity body, and the other side of the hinge is provided with a balancing weight. The method for arranging the balancing weight is that under the condition of no external force, the baffle plate and the lower edge of the cavity form a closed relation spontaneously, and when downward force is applied to the baffle plate on one side below the cavity, the baffle plate can be flexibly separated from the lower edge of the cavity.

Description

Suction type micro-water clean and sanitary discharge process and device with front pollution discharge function

1. Field of the invention

The invention belongs to the technical field of suction type micro-water clean and sanitary discharge, and particularly relates to a process and a device for front-mounted pollution discharge of suction type micro-water clean and sanitary discharge.

2. Background of the invention

The suction type micro-water clean sanitary discharge is sometimes called as indoor vacuum discharge, and is a sanitary discharge method and a technical system thereof, wherein the sanitary discharge method is formed by connecting a micro-water clean sanitary ware with a pipeline with a closed conveying performance and then connecting the pipeline with a negative pressure suction power source. Due to the action of suction, the discharge process of domestic wastes such as excrement, urine, kitchen waste and the like can be cleaned by using only a small amount of water, and the formed high-concentration wastewater is conveyed without depending on the hydraulic dead weight, so that the function of pipeline-type sanitary discharge of micro-water cleaning is realized. The suction type micro-water clean and sanitary discharge mode not only saves water, but also only mixes a small amount of water into the collected waste, thereby having higher value of resource recycling. The existing suction type micro-water clean and sanitary discharge process is characterized in that: the sanitary ware is connected to the suction pipe through the interface valve, a pressure lower than atmospheric pressure is maintained inside the suction pipe, and when the interface valve is opened, waste wastewater in the sanitary ware enters the inside of the suction pipe together with air and is then conveyed to the other end of the suction pipe. Due to the huge pressure difference between the interior of the suction pipeline and the environment of the external atmospheric pressure, the negative pressure needs to be removed first or a powerful suction pump is used for pumping out the liquid when the liquid in the interior of the suction pipeline is transferred to the outside. The process of discharging the material after the interface valve has the disadvantages of complex system and high application cost in some specific application occasions. The invention provides a process and a device for cleaning and sanitation of pumping type micro-water discharged before an interface valve.

3. Summary of the invention

The invention provides a novel process for constructing a suction type micro-water clean and sanitary discharge system, which utilizes a temporary negative pressure formed in a sewage unloader in front of a suction interface valve to discharge waste liquid in a sanitary appliance into the sewage unloader, and when the suction interface valve is closed, the air pressure in the sewage unloader is rapidly balanced with the atmospheric pressure, thereby facilitating sewage unloading. The specific implementation mode is as follows: as shown in the attached drawing, the suction type sanitary ware 1 with micro-water cleaning is connected to a sewage discharge pipe 2 and then connected to a sewage discharger 3, and the hydraulic gradient of the sewage discharge pipe 2 and the installation height of the sewage discharger 3 are suitable for ensuring that clear water entering the sewage discharge pipe 2 can automatically flow into the sewage discharger 3. The unloader 3 is a chamber structure having its top connected to the suction tube 5 through the suction interface valve 4, and the suction tube 5 is maintained at a pressure lower than atmospheric pressure therein by a suction source connected to the distal end. The interface valve 4 is opened, the pressure inside the sewage discharger 3 is lower than the atmospheric pressure, the waste liquid in the sanitary ware 1 is sucked into the sewage discharger 3, and after the suction interface valve 4 is closed, the air pressure inside the sewage discharger 3 spontaneously realizes the balance with the atmospheric pressure, so that the sewage discharge is facilitated.

The invention further provides a sewage discharging device for the suction type micro-water clean and sanitary discharge process of the front sewage discharge, namely the sewage discharging device 3, which consists of a cavity 6, a feed inlet 7, an air suction opening 8, a baffle plate 9, a balancing weight 10 and a hinge 11. The flap 9 is fixed to the valve body 6 by a hinge 11, the part of which below the chamber 6 is upwardly in a close sealing relationship with the lower edge of the chamber 6, and on the other side of which a weight 10 is provided. The method of setting the weight 10 is that the baffle 9 and the lower edge of the cavity 6 spontaneously form a closed relation under the condition of no external force, and when downward force is applied on the baffle on one side below the cavity 6, the baffle 9 can flexibly realize the separation from the lower edge of the cavity 6. The sewage discharge device works in the following mode: (1) connecting the said discharge device to the system in the manner of the discharge device 3 shown in the figure; (2) when waste liquid needs to be discharged from the sanitary appliance 1, the suction interface valve 4 is opened, the pressure in the cavity 6 is lower than the atmospheric pressure, the baffle 9 and the lower edge of the cavity 6 are closed more tightly, and simultaneously the waste liquid in the sanitary appliance is sucked into the sewage discharge pipe 2 and finally reaches the cavity 6; (3) when the suction interface valve 6 is closed, the pressure inside the cavity 6 is converged with the atmospheric pressure, at this time, since the waste liquid entering the cavity 6 has gravity, the baffle plate 9 and the lower edge of the cavity 6 are changed into an open state, and the waste liquid is discharged out of the cavity 6 under the action of self weight. Generally, because the negative pressure in the suction pipe 5 is strong enough (usually less than-20 kPa), a huge suction force is generated in the cavity 6 at the moment of opening the suction interface valve 4, which is enough to suck the waste liquid in the sanitary appliance 1 into the sewage discharge pipe 2 and even completely into the cavity 6, so that the purpose of discharging sewage from the sanitary appliance can be achieved by short-term opening of the suction interface valve 4, thereby saving suction energy.

One way to improve the sealing effect between the baffle 9 and the chamber 6 of the sewage discharge device is to increase the contact area between the lower edge of the chamber 6 and the baffle.

Still another method for improving the discharge effect of the waste liquid from the chamber 6 of the sewage discharging device is to make the included angle between the plane of the lower edge of the chamber 6 and the horizontal plane be 45-75 degrees.

4. Description of the drawings

FIG. 1 is a front-mounted sewage-discharging suction type micro-water sanitary discharge process and a sewage discharging device.

Fig. 2 is a schematic diagram of a three-dimensional embodiment of the sewage discharging device.

1. Sanitary ware; 2. a blow-off pipe; 3. a dirt discharging device; 4. a suction interface valve; 5. a suction tube; 6. a cavity; 7. a feed inlet; 8. an air extraction opening; 9. a baffle plate; 10. a balancing weight; 11. and (4) a hinge.

The suction type micro-water clean and sanitary discharge system established by applying the process and the device of the invention does not need to be provided with a sewage storage device working under the condition lower than the atmospheric pressure, has simple and convenient sewage discharge process, and is suitable for being applied in rural areas and other scenes.

5. Detailed description of the preferred embodiments

The sewage discharge device is shown in fig. 2 and comprises a cavity, a feed inlet, an extraction opening, a baffle, a balancing weight and a hinge, wherein the feed inlet and the extraction opening are formed by a PVC pipeline with the diameter of 110mm, a PVC reducer union and a PVC reducing tee. Baffle and balancing weight are processed the preparation by 8mmPVC board and are formed, fix 5mm rubber skin with rivet and binder on the baffle in order to guarantee the closed compactness of baffle and cavity. The alternating current pin shaft of the baffle plate fixed on the cavity is made of nylon, so that the rotation flexibility of the hinge is ensured. The weight of the balancing weight is increased by 3-5% on the basis of the weight when the front end and the rear end of the baffle are kept balanced, so that the baffle is not only favorable for closing after sewage discharge, but also convenient for being opened smoothly during sewage discharge.

Engineering implementation:

a suction type toilet stool (rated clean water volume is 0.5-1.0 liter/time) is installed in a certain peasant household, a buried septic tank is arranged at the position which is 10 meters away from the toilet stool outdoors, a sewage unloader device is installed above a sewage inlet of the septic tank, the horizontal elevation of a feed inlet of the sewage unloader device is lower than the horizontal height of a water seal in the toilet stool by 5 centimeters, an S-shaped bend used for keeping water seal odor is connected behind a sewage outlet of the suction type toilet stool, and then the feed inlet of the sewage unloader device is connected through a sewage discharge pipe. The suction opening of the sewage discharge device is connected with a special suction interface valve which is kept in a normally closed state and can be closed after being opened for 1.0 second. The suction interface valve is connected with a suction pump through a suction pipe and maintains the pressure in the suction pipe to be-40 kPa to-60 kPa. Start suction interface valve after like the lavatory, the waste water in the suction formula stool pot is in the cavity of suction sewage discharging ware, and the baffle below the sewage discharging valve is automatic to be opened immediately, and waste water falls into in the septic tank, then baffle automatic re-setting below the sewage discharging valve.

Claims

1. A suction type micro-water clean and sanitary discharge process with preposed pollution discharge is characterized in that: the sewage unloader is arranged behind the suction type sanitary appliance and in front of the suction interface valve, waste liquid in the sanitary appliance is discharged into the sewage unloader by utilizing the short negative pressure formed in the sewage unloader in front of the suction interface valve, and when the external negative pressure is removed, the air pressure in the sewage unloader is rapidly balanced with the atmospheric pressure, so that sewage unloading is facilitated.

2. The utility model provides a sewage discharging device that is used for little water sanitation and hygiene of suction of leading blowdown to discharge which characterized in that: the baffle is fixed on the cavity through the hinge, the part of the baffle below the cavity is upward to form a closed and sealed relationship with the lower edge of the cavity, the baffle on the other side of the hinge is provided with the counterweight, so that the baffle and the lower edge of the cavity form a closed relationship without external force, and when downward force is applied to the baffle below the cavity, the baffle can be flexibly separated from the lower edge of the cavity.

3. The suction type micro water sanitary discharge sewage discharging apparatus for preliminary sewage discharge as claimed in claim 2, wherein: the contact area between the lower edge of the cavity and the baffle is increased, so that the sealing effect between the baffle and the cavity is improved.

4. The suction type micro water sanitary discharge sewage discharging apparatus for preliminary sewage discharge as claimed in claim 2, wherein: the included angle between the plane of the lower edge of the cavity and the horizontal plane is controlled to be 45-75 degrees, so that the effect of discharging the waste liquid from the cavity is improved.