Vacuum collecting and discharging system

Abstract

The utility model relates to a vacuum collecting and discharging system which comprises a pipeline network, a sewage collecting terminal, a vacuum pump, a vacuum tank, a sewage pump and a connecting pipe, the vacuum tank is provided with a first valve, a second valve and a third valve which are communicated with the interior of the vacuum tank, the air exhaust end of the vacuum pump is connected with the first valve through the connecting pipe, and the pipeline network is connected with the second valve. A suction pipe is arranged at the input end of the sewage pump, the suction pipe is connected with the bottom end of the vacuum tank and communicates with the interior of the vacuum tank, a fourth valve is arranged on the suction pipe, and the output end of the sewage pump communicates with the sewage collection terminal. The influence on the overall layout and design flexibility of a building is reduced, laying of a pipeline network is simpler, the flow speed of sewage driven by the air pressure difference is higher than the flow speed of sewage guided through gravity, the sewage flows faster, large-flow sewage discharge can be well coped with, and efficiency is high.

Description

Technical Field

[0001] This application relates to the technical field of wastewater discharge, and more specifically, to a vacuum collection and discharge system. Background Technology

[0002] In modern society, with the acceleration of industrialization and the improvement of urbanization, wastewater discharge has become a crucial issue in environmental protection. The effective treatment and discharge of wastewater directly impacts water resource protection, sustainable ecological development, and public health. To address the increasingly severe wastewater pollution problem, various wastewater treatment technologies and discharge systems have been gradually applied and developed. Currently, one of the commonly used wastewater treatment technologies is a gravity-based collection and discharge system.

[0003] Gravity collection and discharge systems are a traditional technology widely used in urban wastewater treatment and discharge. This system typically collects wastewater from discharge sources (such as residential areas, industrial areas, and commercial areas) and transports it to treatment facilities via an underground pipeline network. The core principle of this system is based on the natural slope of the terrain, using gravity to allow wastewater to flow along the pipeline to downstream treatment facilities or final discharge points.

[0004] Gravity collection and discharge systems have the following drawbacks: 1. They require a large amount of space for piping and equipment, resulting in a large footprint and affecting the overall layout and design flexibility of buildings; 2. During the effective treatment and discharge of wastewater, the efficiency of gravity collection and discharge systems can be affected by multiple factors such as flow velocity, pipe diameter, and wastewater volume. Especially during peak periods or rainy seasons, excessive wastewater flow can easily lead to overload of the discharge system, thus affecting the treatment effect of the facilities. Utility Model Content

[0005] To address the problems of the aforementioned related technologies, this application provides a vacuum collection and emission system.

[0006] A vacuum collection and discharge system includes a pipeline network, a sewage collection terminal, a vacuum pump, a vacuum tank, a sewage pump, and connecting pipes. The vacuum tank is equipped with a first valve, a second valve, and a third valve that communicate with its interior. The suction end of the vacuum pump is connected to the first valve through the connecting pipes. The pipeline network is connected to the second valve. The input end of the sewage pump is equipped with a suction pipe that is connected to the bottom of the vacuum tank and communicates with the interior of the vacuum tank. A fourth valve is installed on the suction pipe. The output end of the sewage pump is connected to the sewage collection terminal.

[0007] Preferably, it also includes a PLC control cabinet and an air compressor. The first valve, the second valve, and the fourth valve are all pneumatic disc valves and are each connected to the air compressor through separate air guide pipes and are separately introduced into the air compressor. The third valve is a solenoid valve. The vacuum pump, the sewage pump, the second valve, and the air compressor are all signal connected to the PLC control cabinet.

[0008] Preferably, the vacuum pump is a liquid ring vacuum pump.

[0009] Preferably, it also includes a gas-water separator, wherein the output end of the vacuum pump is provided with a gas guide pipe, the gas guide pipe is connected to the input end of the gas-water separator so that the vacuum pump is connected to the gas-water separation zone of the gas-water separator, and the liquid inlet end of the vacuum pump is provided with a water guide pipe, the water guide pipe is connected to the water outlet end of the liquid storage chamber of the gas-water separator.

[0010] Preferably, the input end of the vacuum pump is provided with an electromagnetic vacuum charging valve, which is connected to the connecting pipe.

[0011] The beneficial technical effects of this application are as follows: A vacuum pump creates a negative pressure environment inside the vacuum tank by drawing a vacuum. By opening the second valve, a negative pressure difference is created between the vacuum tank and the pipeline network, allowing gas from the pipeline network to be introduced into the vacuum tank. The pipeline network then guides sewage into the vacuum tank through this negative pressure difference. By opening the third valve, the vacuum inside the vacuum tank is broken, and then by opening the fourth valve, a sewage pump extracts the sewage from the vacuum tank to a sewage collection terminal for treatment. The sewage in the pipeline network is guided by the pressure difference, replacing the use of gravity to flow the sewage. This allows the pipeline network system to be laid flat, reducing space occupation and impacting the overall layout and design flexibility of the building. It also simplifies the laying of the pipeline network. The flow rate of sewage driven by the pressure difference is faster than that of sewage guided by gravity, and the faster flow of sewage can better handle the discharge of large volumes of sewage, resulting in higher efficiency. Attached Figure Description

[0012] Figure 1 This is a structural schematic diagram of a vacuum collection and emission system according to this embodiment from a first angle.

[0013] Figure 2 This is a second-angle structural schematic diagram of a vacuum collection and emission system according to this embodiment.

[0014] Reference numerals in the attached diagram: 1. Vacuum pump; 11. Electromagnetic vacuum inflation valve; 2. Vacuum tank; 21. First valve; 22. Second valve; 23. Third valve; 3. Sewage pump; 31. Extraction pipe; 311. Fourth valve; 312. Third branch pipe; 4. Connecting pipe; 41. Main pipe; 42. First branch pipe; 43. Second branch pipe; 5. PLC control cabinet; 6. Air compressor; 7. Air-water separator. Detailed Implementation

[0015] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0016] Reference Figure 1 and Figure 2 A vacuum collection and discharge system includes a pipeline network, a sewage collection terminal, a vacuum pump 1, a vacuum tank 2, a sewage pump 3, and a connecting pipe 4. The vacuum tank 2 is equipped with a first valve 21, a second valve 22, and a third valve 23 communicating with its interior. The suction end of the vacuum pump 1 is connected to the first valve 21 via the connecting pipe 4, and the pipeline network is connected to the second valve 22. The input end of the sewage pump 3 is equipped with a suction pipe 31, which is connected to the bottom end of the vacuum pump 1 and extends into the vacuum tank 2. A fourth valve 311 is installed on the suction pipe 31. The output end of the sewage pump 3 is connected to the sewage collection terminal. The vacuum pump 1 creates a vacuum in the vacuum tank 2, generating a negative pressure environment inside. By opening the second valve 22, the vacuum tank 2 creates a negative pressure difference within the pipeline network, thereby achieving the discharge of sewage from the pipeline network. Gas is introduced into vacuum tank 2, and the pipeline network guides sewage into vacuum tank 2 through negative pressure difference. By opening the third valve 23, the vacuum inside vacuum tank 2 is broken, and then by opening the fourth valve 311, the sewage in vacuum tank 2 is pumped to the sewage collection terminal by sewage pump 3. The sewage is treated at the sewage collection terminal. The sewage in the pipeline network is driven by air pressure difference, which is different from the flow of sewage by gravity difference. This allows the pipeline network system to be laid flat, reducing the space occupation and the impact on the overall layout and design flexibility of the building. It also makes the laying of the pipeline network simpler. The flow rate of sewage driven by air pressure difference is faster than the flow rate of sewage guided by gravity. The faster flow of sewage can better cope with the discharge of large amounts of sewage and is more efficient.

[0017] Reference Figure 1 and Figure 2Furthermore, there are two vacuum pumps 1. The connecting pipe 4 includes a main pipe 41 that is closed at one end. Two first branch pipes 42 extend from the outer wall of the main pipe 41. The two first branch pipes 42 are respectively connected to the input ends of the two vacuum pumps 1. A second branch pipe 43 is provided at the end of the main pipe 41 away from its closed end. The second branch pipe 43 is connected to the first valve 21 of the vacuum pipe. The arrangement of two vacuum pumps 1 realizes one for backup and one for use, so that when one vacuum pump 1 is damaged, the other vacuum pump 1 can be quickly replaced and used, which is conducive to ensuring the normal operation of the system in the emergency state of sewage discharge.

[0018] Reference Figure 1 and Figure 2 Furthermore, there are two vacuum tanks 2. The second branch pipe 43 is U-shaped, and the main pipe 41 is connected to the middle of the second branch pipe 43. The two ends of the second branch pipe 43 are respectively connected to the first valve 21 on the two vacuum pumps 1. The second valve 22 of the two vacuum tanks 2 are connected to the network pipeline. Setting up two vacuum tanks 2 also realizes one for backup and one for use, in order to deal with the sudden situation of failure of one of the vacuum pumps 1. At the same time, the two vacuum tanks 2 can also be used at the same time to enhance the carrying capacity of sewage.

[0019] Reference Figure 1 and Figure 2 Furthermore, there are four sewage pumps 3, which are divided into two groups. The input ends of the two sewage pumps 3 in each group are connected to a suction pipe 31. One end of the suction pipe 31 is closed, and two third branch pipes 312 extend from the outer wall. The two third branch pipes 312 are connected to the input ends of two sewage pipes respectively. The end of the suction pipe 31 away from the closed port is connected to the bottom of a vacuum tank 2 and connected to the inside of the vacuum tank 2 to discharge the sewage from the vacuum tank 2. The two sewage pumps 3 in the other group discharge the sewage from another vacuum tank 2. The output ends of the four sewage pumps 3 are all connected to the sewage collection terminal. The two sewage pumps 3 in each group are one in reserve and one in use to deal with the situation of sudden damage to one of them.

[0020] Reference Figure 1 and Figure 2Furthermore, a vacuum collection and discharge system also includes a PLC control cabinet 5 and an air compressor 6. The first valve 21, the second valve 22, and the fourth valve 311 are all pneumatic butterfly valves and are each connected to the air compressor 6 through separate air inlet pipes, allowing for separate air intake via the air compressor 6. The third valve 23 is a solenoid valve. The vacuum pump 1, the sewage pump 3, the third valve 23, and the air compressor 6 are all connected to the PLC control cabinet 5 via signal connections, enabling automatic control through the PLC control cabinet 5. This reduces the need for manual operation of the system and helps reduce the labor intensity of workers. Pneumatic butterfly valves are more suitable for applications requiring high flow rates and large fluid regulation capabilities, and are suitable for the vacuum pump 1 to extract large flow rates of gas and the sewage pump 3 to extract large flow rates of sewage. Solenoid valves are suitable for precise fluid control and rapid response, and are beneficial for controlling the speed of vacuum breaking in the vacuum tank 2.

[0021] Reference Figure 1 and Figure 2 Furthermore, the vacuum pump 1 is a liquid ring vacuum pump 1, which can effectively extract gas mixtures, including gases containing high humidity or trace solid particles, and is more suitable for use in complex gas compositions in pipeline networks.

[0022] Reference Figure 1 and Figure 2 Furthermore, both vacuum pumps 1 are equipped with electromagnetic vacuum charging valves 11 at their input ends. The electromagnetic vacuum charging valves 11 are connected to the first branch pipe 42. The pressure in the connecting pipe 4 is adjusted through the electromagnetic vacuum charging valves 11 to reduce the possibility of the connecting pipe 4 bursting due to excessive pressure. The electromagnetic vacuum charging valves 11 are connected to the PLC control cabinet 5 via signal.

[0023] Reference Figure 1 and Figure 2Furthermore, a vacuum collection and emission system also includes a gas-liquid separator 7. The gas-liquid separator 7 is typically a tank. A high-speed rotating centrifugal device is located in the upper part of the tank, and a liquid storage chamber is located in the lower part of the tank. A gas inlet is located at the top of the tank, and an exhaust outlet is located at the position of the centrifugal device. In the gas-liquid separator 7, gas enters the centrifugal device through the gas inlet. Due to the density difference between gas and water, water droplets are deposited in the liquid storage chamber under the action of centrifugal force, achieving gas-liquid separation. The gas is discharged from the exhaust outlet. The gas-liquid separator 7 is existing technology and is not included in this embodiment. Without going into too much detail, the output ends of the two vacuum pumps 1 are jointly provided with air guide pipes, which are connected to the input end of the gas-water separator 7, so that the vacuum pump 1 is connected to the gas-water separation zone of the gas-water separator 7. The liquid inlet ends of the two vacuum pumps 1 are jointly provided with water guide pipes, which are connected to the water outlet end of the liquid storage chamber of the gas-water separator 7. The gas-water separator 7 provides working water to the liquid ring vacuum pump 1 and performs gas-liquid separation on the gas drawn by the vacuum pump 1, so that the water in the gas can be recycled, which is beneficial to saving water resources. The gas-water separator 7 is connected to the PLC control cabinet 5 for signal connection.

[0024] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A vacuum collection and discharge system, comprising a pipeline network and a wastewater collection terminal, characterized in that: It also includes a vacuum pump, a vacuum tank, a sewage pump, and connecting pipes. The vacuum tank is equipped with a first valve, a second valve, and a third valve that connect to its interior. The vacuum pump's suction end is connected to the first valve through the connecting pipe. The pipeline network is connected to the second valve. The sewage pump's input end is equipped with a suction pipe, which is connected to the bottom of the vacuum tank and extends into the interior of the vacuum tank. The suction pipe is equipped with a fourth valve. The sewage pump's output end is connected to the sewage collection terminal.

2. The vacuum collection and emission system according to claim 1, characterized in that: It also includes a PLC control cabinet and an air compressor. The first valve, the second valve, and the fourth valve are all pneumatic disc valves and are each connected to the air compressor through separate air guide pipes and are separately introduced into the air compressor. The third valve is a solenoid valve. The vacuum pump, the sewage pump, the third valve, and the air compressor are all connected to the PLC control cabinet via signal.

3. The vacuum collection and emission system according to claim 1, characterized in that: The vacuum pump is a liquid ring vacuum pump.

4. The vacuum collection and emission system according to claim 3, characterized in that: It also includes a gas-water separator. The output end of the vacuum pump is provided with a gas guide pipe, which is connected to the input end of the gas-water separator so that the vacuum pump is connected to the gas-water separation zone of the gas-water separator. The liquid inlet end of the vacuum pump is provided with a water guide pipe, which is connected to the water outlet end of the liquid storage chamber of the gas-water separator.

5. A vacuum collection and emission system according to claim 1, characterized in that: The vacuum pump is equipped with an electromagnetic vacuum charging valve at its input end, and the electromagnetic vacuum charging valve is connected to the connecting pipe.

Images