Siphon automatic generating and keeping device

Abstract

The utility model aims to solve the problems of generating and keeping the siphon in the siphon conveying process, and provides a device for automatically generating and keeping the siphon, so that the cost of an enterprise can be reduced by using the siphon to convey liquid, and the device is an effective way for the enterprise to realize a dual-carbon target. In the prior art, siphon is generated by means of a water pump, a large number of facilities and equipment are idle, manpower and material resources are wasted for maintenance, and in the whole siphon operation stage, a stopped water pump impeller can reduce the liquid conveying efficiency. The automatic siphon generating and keeping device can avoid the defects of a traditional method, automatic control is achieved, siphon is automatically generated when the device is started, the siphon condition is monitored in the operation process at any time, and once the device is damaged, the device can automatically recognize and promote siphon generation again. The device can also be installed in remote suburbs without electricity and tap water, siphoning is generated through manual operation, and temporary requirements under special conditions are met. By means of the device, a large number of motor water pump facilities are omitted, and electric energy waste is avoided.

Description

1. Technical Field

[0001] The utility model belongs to the technical field of water supply and drainage engineering devices, and mainly relates to the technology of automatically generating and maintaining siphon in a conveying pipeline. 2. Background Technology

[0002] Liquid transportation can be carried out by siphon principle in some specific cases, such as Figure 1 As shown in FIG. 1 , when it is necessary to use a pipe 2 to discharge liquid from the pool 1 across the wall 3, siphoning can be used for transportation. However, in actual production, the generation of siphoning requires the assistance of a water pump or a vacuum pump, such as Figure 2 As shown, the sewage discharge system of the horizontal flow sedimentation tank needs to install a water pump on the pipeline to ensure the generation of siphon. Once the siphon is formed, the water pump can be shut down. In the entire operation cycle, the water pump may be in operation for less than one percent of the time, but it has to be installed, which will idle a large number of facilities and equipment, waste manpower and material resources for maintenance, and in the entire siphon operation stage, the water pump impeller will hinder the liquid delivery and slow down the liquid delivery speed. The utility model - the automatic siphon generation and maintenance device is a low-cost device that does not hinder the siphon effect. 3. Utility Model Content

[0003] The utility model provides a device for automatically generating and maintaining siphon, which is mainly composed of a liquid storage tank 7, a pipeline, a valve and various sensors. The design principle is as follows Figure 3 As shown. Through this device, it is possible to realize automatic generation of siphon after opening the outlet valve 11. When the siphon is destroyed, the system can automatically identify and promote the generation of siphon again. A proper amount of water is added to the liquid storage tank 7 through the tap water pipe 5, and the air in the siphon tube 17 is removed under the action of the liquid's own gravity. The device is automatically controlled by the control cabinet, and there is no hindrance to the siphon effect after normal operation. The device can move with the siphon tube 17, eliminating the unnecessary installation of movable hoses. When the liquid storage tank 7 is out of water, the device will automatically move to the designated position and be replenished through the tap water pipe 5. The device can also manually generate a siphon in the pipeline in the suburbs without electricity and tap water. By manually adding liquid to the liquid storage tank and manually controlling each valve, the pipeline can generate a siphon. Through this device, not only a large number of motor water pump facilities are eliminated, but also the waste of electric energy is avoided. IV. Description of the drawings

[0004] Figure 1 This is a situation where siphon drainage can be used in real life. In the figure, 1-liquid surface; 2-siphon pipe; 3-wall

[0005] Figure 2 The current horizontal flow sedimentation tank relies on water pumps to generate siphons and then discharge sewage.

[0006] Figure 3Schematic diagram of the principle of the siphon automatic generation and maintenance device

[0007] In the figure, 4-tap valve; 5-tap pipe joint; 6-intake / exhaust port; 7-liquid storage tank; 8-drain valve; 9-intake / exhaust valve; 10-positive and negative electric contact pressure gauge; 11-water outlet valve; 12-water outlet; 13-water inlet; 14-check valve; 15-siphon valve; 16-duckbill float switch; 17-siphon tube; 18-liquid filling tube; 19-iso tee; 20-exhaust pipe V. Specific implementation methods

[0008] Combination Figure 3 The specific implementation mode of the utility model is introduced in detail, which is specifically divided into working modes such as siphon drainage starting, siphon drainage maintaining, siphon drainage stopping and liquid storage tank water replenishment.

[0009] 1. Siphon drainage start mode. When the system is started and the outlet valve 11 is opened, the air inlet / exhaust valve 9 is in a closed state. The system will automatically detect the negative pressure of the positive and negative electric contact pressure gauge 10 to determine whether the siphon has been generated. If the negative pressure does not meet the siphon generation conditions, the device will start the siphon generation program. The program is executed in two cases: ①. When the diameter of the siphon tube 17 is less than or equal to 25mm, the siphon generation valve 15 is directly opened, and the check valve 14 is restored to the closed state. The liquid in the liquid storage tank will fill the siphon tube 17 under the action of gravity and be discharged from the outlet valve 11. When the negative pressure value of the positive and negative electric contact pressure gauge 10 meets the siphon condition, the system Then close the siphon generating valve 15, and the check valve 14 will open under the action of the siphon negative pressure, and the drainage work can be carried out normally; ②. When the diameter of the siphon tube 17 is greater than 25mm, first close the water outlet valve 11, open the air inlet / exhaust valve 9, and then open the siphon generating valve 15, the check valve 14 returns to the closed state, and the liquid in the liquid storage tank fills the siphon tube 17 under the action of gravity, and the gas in the tube is discharged from the air inlet / exhaust port 6. After the liquid fills the siphon tube 17, the system immediately closes the air inlet / exhaust valve 9, opens the water outlet valve 11 and closes the siphon generating valve 15, and the check valve 14 will open under the action of the siphon negative pressure, and the drainage work can be carried out normally.

[0010] 2. Siphon drainage maintenance mode. During the entire drainage work, the system always monitors the negative pressure of the positive and negative electric contact pressure gauges 10. Once the siphon is destroyed due to some special reasons, the pressure of the positive and negative electric contact pressure gauges 10 will increase. When the negative pressure value no longer meets the siphon conditions, the system will start the siphon drainage start-up program again.

[0011] 3. The siphon drainage stop mode is divided into normal shutdown and maintenance shutdown. The first is normal shutdown. When the drainage work is completed, the system will close the outlet valve 11, and the device will immediately enter the standby state, waiting for the next operation cycle to open the outlet valve 11 and put into operation. The second is maintenance shutdown. When the siphon pipe 17 fails, the air inlet / exhaust valve 9 can be opened to destroy the siphon and drain the liquid in the pipe. After the system is shut down, maintenance work can be carried out.

[0012] 4. Liquid tank water replenishment method. The liquid tank of the device can be moved back and forth with the siphon device, eliminating the need to install movable water pipes and reducing the equipment failure rate. When the device is started, the system will automatically replenish the liquid to the highest limit. During operation, when the system detects that the liquid in the liquid tank is lower than the lowest limit, the entire device will move to the designated position to replenish the liquid through the tap water pipe 5, and will resume normal operation after replenishing to the highest limit.

[0013] 5. Manual operation mode: in some suburbs without electricity and running water, if the liquid needs to be siphoned through a pipeline, the installation method is the same as the automatic control principle, and human intervention is required. The liquid storage tank 7 can be filled with liquid manually, and then each valve can be manually controlled to generate siphon drainage according to the principle of automatic operation.

Claims

1. A siphon automatic generation and maintenance device, characterized in that: A three-way valve (19) is installed on the siphon pipe (17) to connect the positive and negative electric contact pressure gauge (10), a check valve (14) is installed above the water inlet (13), a water outlet valve (11) is installed above the water outlet (12), a liquid infusion pipe (18) is installed between the check valve (14) of the siphon pipe (17) and the positive and negative electric contact pressure gauge (10) to communicate with the liquid storage tank (7), a siphon generating valve (15) is installed on the liquid infusion pipe (18), and a positive and negative electric contact pressure gauge (10) is installed between the positive and negative electric contact pressure gauge (10) of the siphon pipe (17). An exhaust pipe (20) is installed between the pressure gauge (10) and the water outlet valve (11) to communicate with the atmosphere, and the port position is higher than the liquid storage tank (7) as an air inlet / exhaust port (6), and an air inlet / exhaust valve (9) is installed on the exhaust pipe (20), and a duckbill type float switch (16) is installed at the upper and lower limit positions of the liquid level of the liquid storage tank (7) to sense the liquid level; the positive and negative electric contact pressure gauge (10) is used to judge whether the siphon conveying is normal, and when the siphon is destroyed, the siphon can be automatically generated to ensure the continuous operation of the siphon conveying.

2. A siphon automatic generation and maintenance device according to claim 1, characterized in that The air in the siphon tube (17) can be removed by relying on the gravity of the liquid in the liquid storage tank (7) to generate a siphon.

3. A siphon automatic generation and maintenance device according to claim 1, characterized in that The siphon pipe (17) is equipped with an air inlet / exhaust valve (9) to exhaust air and destroy the siphon effect.

4. A siphon automatic generation and maintenance device according to claim 1, characterized in that The liquid storage tank (7) can move with the siphon (17), eliminating the need for installation of a movable hose. When the liquid storage tank (7) is empty, the device will automatically move to a designated location to replenish liquid through the water pipe (5).

5. A siphon automatic generation and maintenance device according to claim 1, characterized in that All valves are equipped with manual control and can be installed and used in suburban areas without electricity and running water. Siphon drainage operation can be achieved through manual water injection and manual control of each valve.

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