Self-starting siphon type anti-clogging sludge discharge device

Abstract

The utility model relates to a kind of self-starting siphon type anti-blocking sludge discharge device, sludge level meter is arranged in sedimentation tank and is located above sludge layer, siphon component includes: siphon riser and siphon downcomer, siphon riser is in sedimentation tank and is located below sludge level meter, the lower end of siphon riser is close to sludge layer, the upper end of siphon riser is through the pool wall of sedimentation tank and is communicated with the inlet on the lateral wall of external water tank, the upper end of siphon downcomer enters water tank through water tank bottom, a water seal groove is arranged in water tank, and siphon downcomer upper end is entered into it, water seal groove opening and siphon downcomer upper end are all located below liquid level line in water tank, quick-opening valve is arranged on siphon downcomer, and quick-opening valve and sludge level meter are electrically connected with controller respectively.Automatic siphon is started and stopped by sludge level change, compared with traditional electric siphon device, completely power-free automatic sludge discharge, compatible with existing sedimentation tank modification.

Description

Technical Field

[0001] This utility model relates to the field of water treatment equipment technology, specifically to a self-starting siphon-type anti-clogging sludge discharge device. Background Technology

[0002] Traditional sedimentation tanks generally use perforated sludge discharge pipes at the bottom for sludge discharge. However, in actual operation, sludge tends to clump and accumulate at the discharge holes, especially when dealing with sludge containing fibers, oils, or sticky substances. This often leads to severe blockage, causing a sharp drop in sludge discharge efficiency or even system failure. Among existing solutions, high-pressure water backflushing consumes too much energy and requires interruption of operation, while mechanical scraping devices have problems with complex structure and high maintenance costs. Simply increasing the diameter of the discharge pipe will reduce the flow rate and exacerbate sedimentation. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a self-starting siphon-type anti-clogging sludge discharge device to overcome the shortcomings of the prior art.

[0004] The technical solution of this utility model to solve the above-mentioned technical problems is as follows:

[0005] A self-starting siphon-type anti-clogging sludge discharge device includes: a siphon assembly and a sludge level gauge. The sludge level gauge is installed in a sedimentation tank and located above the sludge layer. The siphon assembly includes: a siphon riser pipe and a siphon downpipe. The siphon riser pipe is located in the sedimentation tank and below the sludge level gauge. The lower end of the siphon riser pipe is close to the sludge layer, and the upper end of the siphon riser pipe penetrates the wall of the sedimentation tank and connects to an inlet on the side wall of an external water tank. The upper end of the siphon downpipe enters the water tank through the bottom of the water tank. A water seal trough is arranged in the water tank, which is inverted on the upper end of the siphon downpipe and allows the upper end of the siphon downpipe to enter the trough. The opening of the water seal trough and the upper end of the siphon downpipe are both located below the liquid level line in the water tank. A quick-opening valve is provided on the siphon downpipe. The quick-opening valve and the sludge level gauge are electrically connected to a controller.

[0006] Based on the above technical solution, the present invention can be further improved as follows.

[0007] Furthermore, a sludge concentration meter electrically connected to the controller is installed in the sedimentation tank.

[0008] Furthermore, spiral guide vanes are installed inside the siphon riser and siphon faller.

[0009] Furthermore, a flow guide is installed at the lower inlet of the siphon riser.

[0010] Furthermore, the flow guide is cone-shaped, and the smaller diameter end of the flow guide is connected to the lower end of the siphon riser.

[0011] Furthermore, the distance between the lower end of the siphon riser and the sludge layer is 0.5m to 1m.

[0012] Furthermore, the siphon riser pipe is connected to the water tank via a flange, and the siphon downpipe is also connected to the water tank via a flange.

[0013] Furthermore, a sludge trough is installed below the siphon downpipe.

[0014] Furthermore, the siphon riser and siphon downpipe are made of stainless steel.

[0015] The beneficial effects of this utility model are as follows: The siphon assembly automatically starts and stops the siphon based on changes in sludge level. Compared with traditional electric siphon devices, it is completely powerless and automatically discharges sludge, saving 100% in energy. The combination of the guide hood and the spiral guide vane causes the sludge to generate swirling acceleration, forming continuous turbulence in the siphon riser pipe and siphon fallr pipe, effectively avoiding sludge discharge pipe blockage, improving anti-clogging performance by more than 10 times, reducing maintenance costs by 70%, and being compatible with the renovation of existing sedimentation tanks with a construction period of less than 2 days. Attached Figure Description

[0016] Figure 1 This is a structural diagram of the self-starting siphon-type anti-clogging sludge discharge device of this utility model.

[0017] The attached diagram lists the components represented by each number as follows:

[0018] 1. Siphon assembly, 110. Siphon riser pipe, 120. Water tank, 130. Water seal trough, 140. Siphon downpipe, 150. Quick-opening valve, 2. Sludge level gauge, 3. Sedimentation tank, 310. Sludge layer, 4. Spiral guide vane, 5. Guide hood, 6. Controller, 7. Sludge tank. Detailed Implementation

[0019] The principles and features of this utility model are described below with reference to the accompanying drawings. The examples given are only for explaining this utility model and are not intended to limit the scope of this utility model.

[0020] Example 1

[0021] like Figure 1As shown, a self-starting siphon-type anti-clogging sludge discharge device includes: a siphon assembly 1 and a sludge level gauge 2. The sludge level gauge 2 is installed in a sedimentation tank 3 and is located above the sludge layer 310 in the sedimentation tank 3. The sludge layer 310 refers to the reasonable value that the sedimentation tank 3 can accumulate. The siphon assembly 1 includes: a siphon riser pipe 110, a water tank 120, a water seal trough 130, and a siphon downcomer pipe 140. The siphon riser pipe 110 is located in the sedimentation tank 3 and is below the sludge level gauge 2, which means it can... This can be understood as follows: the siphon riser 110 is located below the liquid level line in the sedimentation tank 3. The lower end of the siphon riser 110 is adjacent to the sludge layer 310, while the upper end of the siphon riser 110 penetrates the wall of the sedimentation tank 3 and connects to the inlet on the side wall of the water tank 120 located outside the sedimentation tank 3. The upper end of the siphon downpipe 140 enters the water tank 120 through the bottom of the water tank 120. The siphon downpipe 140 and the water tank 120 are sealed together. There is no gap between the two water tanks 120 and 120 that allows for water leakage. An inverted water seal groove 130 is installed in the water tank 120, meaning the opening of the water seal groove 130 faces downwards. The water seal groove 130 is only open at its lower end, with the other sides closed. The water seal groove 130 is located above the siphon downpipe 140, and the upper end of the siphon downpipe 140 enters the water seal groove 130 through its opening. The opening of the water seal groove 130 is below the liquid level line in the water tank 120, and the upper end of the siphon downpipe 140 is also below the water level line. Below the liquid level line inside tank 120, the opening of water seal tank 130 and the upper end of siphon downcomer 140 are all located below the inlet on the side wall of tank 120. A quick-opening valve 150 is provided on siphon downcomer 140. Under normal circumstances, the opening time of quick-opening valve 150 is ≤3 seconds. Quick-opening valve 150 is electrically connected to controller 6, and mud level gauge 2 is electrically connected to controller 6. Controller 6 can be a PLC in the prior art. Quick-opening valve 150 and mud level gauge 2 both adopt the prior art.

[0022] Example 2

[0023] like Figure 1 As shown, this embodiment is a further improvement on embodiment 1, as detailed below:

[0024] The sedimentation tank 3 is equipped with a sludge concentration meter that is electrically connected to the controller 6. The sludge concentration meter is used to measure the sludge concentration in the sedimentation tank 3.

[0025] Example 3

[0026] like Figure 1 As shown, this embodiment is a further improvement on embodiment 1 or 2, as detailed below:

[0027] The siphon riser 110 is provided with a spiral guide vane 4, and the siphon downpipe 140 is also provided with a spiral guide vane 4. The spiral guide vane 4 is used to spiral guide the mud-water mixture entering the siphon riser 110 or the siphon downpipe 140 to form a continuous turbulent flow.

[0028] A flow guide shroud 5 is provided at the lower inlet of the siphon riser 110. The flow guide shroud 5 is preferably conical in shape, and the small-diameter end of the flow guide shroud 5 is connected to the lower end of the siphon riser 110. The flow guide shroud 5 can generate a swirling flow of the mud-water mixture entering the siphon riser 110, and, together with the spiral guide vanes 4 inside the siphon riser 110 and the siphon downpipe 140, completely solve the problem of sludge discharge pipe blockage. The flow guide shroud 5 and the siphon riser 110 are connected in a detachable manner, such as by bolt connection. During device maintenance, it is only necessary to check the wear of the flow guide shroud 5 once a period of time, such as every quarter, and replace it if necessary. The detachable connection method makes it easy to disassemble and assemble the flow guide shroud 5.

[0029] Example 4

[0030] like Figure 1 As shown, this embodiment is a further improvement on embodiment 1, 2, or 3, as detailed below:

[0031] The distance between the lower end of the siphon riser pipe 110 and the sludge layer 310 is 0.5m to 1m.

[0032] Example 5

[0033] like Figure 1 As shown, this embodiment is a further improvement on any one of embodiments 1 to 4, as detailed below:

[0034] The siphon riser pipe 110 is connected to the water tank 120 by a flange, and the siphon downpipe 140 is connected to the water tank 120 by a flange.

[0035] A sludge tank 7 is installed below the siphon downpipe 140, and water or mud-water mixture discharged from inside and outside the siphon downpipe 140 enters the sludge tank 7.

[0036] The siphon riser 110 is made of stainless steel, and the siphon downcomer 140 is also made of stainless steel.

[0037] The sludge removal process of the self-starting siphon-type anti-clogging sludge removal device is as follows:

[0038] During operation, the sludge level gauge 2 monitors the thickness of the sludge layer 310 in the sedimentation tank 3. When the thickness increases to a preset value (e.g., 30cm, 40cm, 50cm, etc. can be set) or reaches the preset value, the sludge level gauge 2 is triggered to send data back to the controller 6. Then, the controller 6 controls the quick-opening valve 150 to quickly complete the opening action. For example, if the opening time of the quick-opening valve 150 is ≤3 seconds, then the quick-opening valve 150 will complete the opening action within 3 seconds. At this time, the water in the water tank 120 is rapidly discharged under the action of gravity, thereby creating a negative pressure in the siphon riser pipe 110 and the water tank 120 to establish a siphon effect. The sludge-water mixture enters the siphon riser pipe 110 through the guide hood 5 under the siphon action. Inside, the mud-water mixture is then swirled by the spiral guide vane 4, continuously flushing the pipe wall. It then enters the water tank 120 and then the siphon downcomer 140. Again, the mud-water mixture is swirled by the spiral guide vane 4, continuously flushing the pipe wall. Finally, it flows into the sludge tank 7. The entire sludge discharge process is automatically monitored by the controller 6. After the corresponding sludge discharge time is reached, the quick-opening valve 150 will close. Even if the quick-opening valve 150 is closed, the water tank 120 will still reserve a predetermined water level so that it can be discharged again to generate negative pressure as the sludge discharge power. Of course, it is also possible to start the sludge discharge by the controller 6 at regular intervals without relying on the sludge level gauge 2.

[0039] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A self-starting siphon-type anti-clogging sludge discharge device, characterized in that, include: The siphon assembly (1) and the sludge level gauge (2) are arranged in the sedimentation tank (3) and located above the sludge layer (310). The siphon assembly (1) includes a siphon riser (110) and a siphon downcomer (140). The siphon riser (110) is located in the sedimentation tank (3) and below the sludge level gauge (2). The lower end of the siphon riser (110) is adjacent to the sludge layer (310), and the upper end of the siphon riser (110) penetrates the wall of the sedimentation tank (3) and communicates with the inlet on the side wall of the external water tank (120). The upper end of the siphon downpipe (140) enters the water tank (120) through the bottom of the water tank (120). A water seal groove (130) is arranged in the water tank (120) with the upper end of the siphon downpipe (140) inverted and the upper end of the siphon downpipe (140) entering it. The opening of the water seal groove (130) and the upper end of the siphon downpipe (140) are both below the liquid level line in the water tank (120). A quick-opening valve (150) is provided on the siphon downpipe (140). The quick-opening valve (150) and the mud level gauge (2) are electrically connected to the controller (6).

2. The self-starting siphon-type anti-clogging sludge discharge device according to claim 1, characterized in that, The sedimentation tank (3) is equipped with a sludge concentration meter that is electrically connected to the controller (6).

3. The self-starting siphon-type anti-clogging sludge discharge device according to claim 1, characterized in that, The siphon riser (110) and siphon faller (140) are provided with spiral guide vanes (4).

4. The self-starting siphon-type anti-clogging sludge discharge device according to claim 3, characterized in that, A flow guide shroud (5) is provided at the lower inlet of the siphon riser (110).

5. The self-starting siphon-type anti-clogging sludge discharge device according to claim 4, characterized in that, The flow guide (5) is conical in shape, and the small diameter end of the flow guide (5) is connected to the lower end of the siphon riser (110).

6. The self-starting siphon-type anti-clogging sludge discharge device according to claim 1, characterized in that, The distance between the lower end of the siphon riser (110) and the sludge layer (310) is 0.5m to 1m.

7. The self-starting siphon-type anti-clogging sludge discharge device according to claim 1, characterized in that, The siphon riser pipe (110) is connected to the water tank (120) by a flange, and the siphon downpipe (140) is connected to the water tank (120) by a flange.

8. The self-starting siphon-type anti-clogging sludge discharge device according to claim 1, characterized in that, A sludge trough (7) is installed below the siphon downpipe (140).

9. A self-starting siphon-type anti-clogging sludge discharge device according to claim 1, characterized in that, The siphon riser (110) and siphon faller (140) are made of stainless steel.

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