Hydrolysis acidification tank pulse water distribution device

Abstract

The utility model relates to sewage treatment technical field, concretely for hydrolytic acidification pond pulse water distribution device. Include: water pool, siphon subassembly sets up in the upper end pulse water distribution pipe network of water pool, sets up in the bottom of water pool, pulse water distribution pipe network and siphon subassembly intercommunication, siphon subassembly includes: water distribution box, set up in the upper end of water pool, inlet pipe, set up in the upper end of water distribution box, water distribution main pipe, present inverted U shape set up in water distribution box, water distribution main pipe includes inlet section, top siphon elbow and outlet section, siphon pipe, the upper end of siphon pipe and inlet section intercommunication, the lower end of siphon pipe is located in water pool, siphon destruction pipe, siphon destruction pipe passes through first auxiliary pipe and the bottom of water distribution box intercommunication, siphon destruction pipe passes through second auxiliary pipe and top siphon elbow's top intercommunication, siphon destruction pipe passes through third auxiliary pipe and siphon pipe intercommunication. It realizes unpowered pulse water distribution through siphon effect, combines sludge disturbance and prevents the design of blocking, and promotes hydrolytic acidification efficiency.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, specifically to a pulse water distribution device for a hydrolysis acidification tank. Background Technology

[0002] In existing technologies, hydrolysis acidification processes mostly use fixed water distribution pipes or mechanically rotating water distributors as water distribution devices, but several technical bottlenecks still need to be addressed in practical applications:

[0003] Firstly, regarding the uniformity of water distribution, traditional fixed water distribution devices are limited by their static structural characteristics, which can easily lead to obvious hydraulic short-circuiting in the tank, resulting in an increased sludge deposition rate and directly affecting the hydrolysis and acidification effect.

[0004] Secondly, in terms of energy consumption control, although mechanical rotary water distributors can improve the uniformity of water distribution, their drive devices rely on continuous power input to maintain the periodic operation of the rotating mechanism. Especially under large-scale treatment conditions, the long-term operation of the power unit will significantly increase energy consumption costs, which is contrary to the current trend of low-carbon development in the wastewater treatment industry.

[0005] Furthermore, regarding equipment reliability, the mechanical transmission components and bearing sealing structure of the rotary water distributor are prone to biofilm adhesion and impurity entanglement in wastewater media containing fibrous suspended matter, leading to abnormally increased rotational resistance or even complete jamming. This not only increases the frequency of equipment maintenance and manual cleaning costs, but may also cause unplanned shutdowns of the entire wastewater treatment system due to sudden failures.

[0006] The aforementioned technical defects have become a major bottleneck restricting the improvement of the efficiency and optimization of the operation economy of the hydrolysis acidification process, and urgently need to be overcome through structural innovation design. Utility Model Content

[0007] To address the technical problems existing in the background art, this utility model provides a pulse water distribution device for a hydrolysis acidification tank, which achieves non-powered pulse water distribution through the siphon effect and improves the hydrolysis acidification efficiency by combining sludge disturbance and anti-clogging design.

[0008] The technical solution adopted by this utility model to solve its technical problem is:

[0009] The pulse water distribution device for the hydrolysis acidification tank includes:

[0010] pool;

[0011] The siphon assembly is located at the top of the pool.

[0012] A pulse water distribution network is installed at the bottom of the water tank and is connected to the siphon assembly.

[0013] The siphon assembly includes:

[0014] A water tank is installed at the top of the pool;

[0015] The water inlet pipe is located at the top of the water distribution tank;

[0016] The main water distribution pipe is arranged in an inverted U-shape inside the water distribution tank. The main water distribution pipe includes an inlet section, a top siphon elbow, and an outlet section.

[0017] The siphon pipe has its upper end connected to the inlet section and its lower end located in the water tank.

[0018] The siphon breaking pipe is connected to the bottom of the water distribution tank through the first auxiliary pipe, the siphon breaking pipe is connected to the top of the top siphon elbow through the second auxiliary pipe, and the siphon breaking pipe is connected to the siphon pipe through the third auxiliary pipe.

[0019] Furthermore, a solenoid valve is installed at the outer end of the siphon failure tube.

[0020] Furthermore, multiple siphons are provided, and the connection points of the multiple siphons to the water inlet section are distributed at intervals along the height direction of the water inlet section. Each siphon is equipped with an independent manual ball valve.

[0021] Furthermore, the pulsed water distribution network includes:

[0022] The horizontal water distribution pipe is connected to the water outlet section;

[0023] Water distribution branch pipes are symmetrically distributed on both sides of the water distribution horizontal pipe, and several jet holes are opened on the water distribution branch pipes.

[0024] Furthermore, the orifice direction of the jet hole forms a 30° angle with the axis of the water distribution branch pipe.

[0025] Furthermore, a stainless steel filter screen is embedded inside the jet hole.

[0026] Furthermore, a mud collection ditch is provided at the bottom of the pool, with 8°-10° slopes on both sides.

[0027] Furthermore, a sludge discharge pipe is installed at the bottom of the sludge collection ditch, and a pneumatic butterfly valve is installed on the sludge discharge pipe.

[0028] The beneficial effects of this utility model are:

[0029] (1) The sludge layer is disturbed, the water distribution is made uniform and the blockage is prevented by periodic siphon pulse water flow, which is suitable for the pretreatment of hydrolysis acidification of high suspended solids organic wastewater. The siphon is automatically triggered by the water level difference, without the need for water pump or valve control. The pulse frequency is naturally adjusted by the inlet water flow rate. The greater the flow rate in the inlet pipe, the more frequently the siphon is triggered.

[0030] (2) Set up siphons with different height differences, and adjust the pulse frequency at a certain flow rate by operating the relevant siphon valves according to the actual operating conditions on site.

[0031] (3) The jet vortex increases the sludge suspension rate to over 90%, the bottom slope and sludge collection ditch enhance the gravity sludge discharge efficiency, the high-speed water flow of the jet hole washes the filter screen, and combined with intermittent sludge discharge, zero manual cleaning is achieved. Attached Figure Description

[0032] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0033] Figure 1 This is a schematic diagram of the structure of this utility model;

[0034] Figure 2 This is a schematic diagram of the siphon assembly;

[0035] Figure 3 This is a schematic diagram of the main water distribution pipe and the siphon failure pipe;

[0036] Figure 4 This is a top view of the internal structure of the pool.

[0037] In the picture:

[0038] 1. Siphon assembly, 2. Water tank, 3. Pulse water distribution network, 4. Sludge discharge pipe;

[0039] 101. Water distribution tank; 102. Water inlet pipe; 103. Main water distribution pipe; 104. Siphon breaker pipe; 105. Siphon pipe; 106. Solenoid valve; 107. Manual ball valve.

[0040] 301. Horizontal water distribution pipe; 302. Branch water distribution pipe;

[0041] 1031. Inlet section; 1032. Top siphon elbow; 1033. Outlet section;

[0042] 1041. First auxiliary tube, 1042. Second auxiliary tube, 1043. Third auxiliary tube. Detailed Implementation

[0043] The present invention will be further described in detail below with reference to the accompanying drawings.

[0044] The hydrolysis acidification tank pulse water distribution device includes a water tank 2. A siphon assembly 1 is located at the upper end of the water tank 2. A pulse water distribution network 3 is located at the bottom of the water tank 2 and is connected to the siphon assembly 1.

[0045] The siphon assembly 1 includes a water distribution tank 101, which is located at the upper end of the water tank 2. An inlet pipe 102 is located at the upper end of the water distribution tank 101. A main water distribution pipe 103 is arranged in an inverted U-shape within the water distribution tank 101. The main water distribution pipe 103 is made of DN250 UPVC or carbon steel. The main water distribution pipe 103 includes an inlet section 1031, a top siphon elbow 1032, and an outlet section 1033. The upper end of the siphon pipe 105 is connected to the inlet section 1031, and the lower end of the siphon pipe 105 is located in the water tank 2. A siphon breaking pipe 104 is connected to the bottom of the water distribution tank 101 via a first auxiliary pipe 1041, to the top of the top siphon elbow 1032 via a second auxiliary pipe 1042, and to the siphon pipe 105 via a third auxiliary pipe 1043. The design volume of the siphon pipe 105 is significantly larger than that of the top siphon elbow 1032. This structural feature ensures that during operation, the air trapped inside the top siphon elbow 1032 can be completely discharged through the siphon pipe 105, thus creating a stable siphon effect inside the main water distribution pipe 103.

[0046] A solenoid valve 106 is installed at the outer end of the siphon breaking tube 104. The siphon breaking tube 104 is connected to the air pipe through the solenoid valve 106. When it is necessary to terminate the siphon, the solenoid valve 106 opens to allow air in, breaking the vacuum state.

[0047] As the liquid level in the water distribution tank 101 rises to the inlet of the siphon pipe 105, the water flows to the right and downwards through the siphon pipe 105. During the rapid discharge of the water, it carries away the air accumulated in the upper part of the water distribution main pipe 103, thus creating a negative pressure state in the upper part of the water distribution main pipe 103. Since the air pressure inside the water distribution main pipe 103 is lower than the atmospheric pressure at this time, the water level in the right pipe of the water distribution main pipe 103 will rise rapidly to the top and then be discharged downwards through the left water distribution main pipe 103 into the lower water pool 2. The negative pressure drainage process is rapid, and the pipe flow rate far exceeds the inlet flow rate. At this time, the water level in the water distribution tank 101 drops rapidly.

[0048] Multiple siphon pipes 105 are provided, and the connection points of the multiple siphon pipes 105 and the water inlet section 1031 are distributed at intervals along the height direction of the water inlet section 1031. Each siphon pipe 105 is equipped with an independent manual ball valve 107. By setting up siphon pipes 105 with different height differences, the pulse frequency at a certain flow rate can be adjusted by operating the relevant siphon pipe valves according to the actual on-site operating conditions.

[0049] The pulsed water distribution network 3 includes a horizontal water distribution pipe 301, which is connected to the outlet section 1033. The horizontal water distribution pipe 301 extends along the centerline of the bottom of the water tank 2 to both ends of the tank. Water distribution branch pipes 302 are symmetrically distributed on both sides of the horizontal water distribution pipe 301, with 6-8 branch pipes 302 symmetrically distributed on each side. The spacing between the branch pipes 302 is 1.0-1.5m, and their ends are closed. Two rows of jet holes are opened at the bottom of the branch pipes 302. The orifice direction of the jet holes forms a 30° angle with the axis of the branch pipe 302, creating a tangential vortex flow. Stainless steel filter screens are embedded in the jet holes to prevent fibrous impurities from clogging them.

[0050] A sludge collection ditch is installed at the bottom of pool 2, with 8°-10° slopes on both sides. A sludge discharge pipe 4 is installed at the bottom of the sludge collection ditch, and a pneumatic butterfly valve is installed on the sludge discharge pipe 4. The pneumatic butterfly valve is activated every 2 hours to discharge sludge for 10 seconds, and the amount of sludge discharged is linked to the concentration of suspended solids in the influent.

[0051] Specific working methods:

[0052] Water storage stage: Water is injected into the water distribution tank 101 through the inlet pipe 102, and the water level rises slowly. When the water level reaches the height of the siphon pipe 105, the siphon effect is automatically triggered.

[0053] Pulse Phase: The main water distribution pipe 103 rapidly empties the water stored in the water distribution tank 101, with a peak flow velocity of 2.0-2.5 m / s. The high-speed water flow is ejected through the jet holes on the branch water distribution pipe 302, forming a swirling flow that agitates the sludge at the bottom of the pool 2, with a continuous disturbance time of ≥30 seconds.

[0054] Settling and Sludge Removal: After the siphoning process ends, the water flow rate in pool 2 drops to 0.05 m / s, allowing the sludge to settle and undergo hydrolysis and acidification. The PLC system initiates sludge removal based on the liquid level signal to prevent excessive sludge accumulation.

[0055] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A pulse water distribution device for a hydrolysis acidification tank, characterized in that, include: Pool (2); A siphon assembly (1) is installed at the upper end of the pool (2); A pulse water distribution network (3) is installed at the bottom of the water tank (2), and the pulse water distribution network (3) is connected to the siphon assembly (1); The siphon assembly (1) includes: A water distribution tank (101) is installed at the upper end of the water tank (2); The water inlet pipe (102) is located at the upper end of the water distribution tank (101); The water distribution main pipe (103) is arranged in an inverted U-shape inside the water distribution tank (101). The water distribution main pipe (103) includes an inlet section (1031), a top siphon elbow (1032), and an outlet section (1033). Siphon (105), the upper end of which is connected to the water inlet section (1031), and the lower end of which is located in the water tank (2); The siphon breaking pipe (104) is connected to the bottom of the water distribution tank (101) through the first auxiliary pipe (1041), the siphon breaking pipe (104) is connected to the top of the top siphon elbow (1032) through the second auxiliary pipe (1042), and the siphon breaking pipe (104) is connected to the siphon pipe (105) through the third auxiliary pipe (1043).

2. The pulse water distribution device for the hydrolysis acidification tank according to claim 1, characterized in that, A solenoid valve (106) is provided at the outer end of the siphon breaking tube (104).

3. The pulse water distribution device for the hydrolysis acidification tank according to claim 1, characterized in that, Multiple siphons (105) are provided, and the connection points of the multiple siphons (105) and the water inlet section (1031) are distributed at intervals along the height direction of the water inlet section (1031). Each siphon (105) is provided with an independent manual ball valve (107).

4. The pulse water distribution device for the hydrolysis acidification tank according to claim 1, characterized in that, The pulse water distribution network (3) includes: The horizontal water distribution pipe (301) is connected to the water outlet section (1033); Water distribution branch pipes (302) are symmetrically distributed on both sides of water distribution horizontal pipes (301), and several jet holes are provided on the water distribution branch pipes (302).

5. The pulse water distribution device for the hydrolysis acidification tank according to claim 4, characterized in that, The orifice of the jet is at a 30° angle to the axis of the water distribution branch pipe (302).

6. The pulse water distribution device for the hydrolysis acidification tank according to claim 4, characterized in that, The jet hole is fitted with a stainless steel filter screen.

7. The pulse water distribution device for the hydrolysis acidification tank according to claim 1, characterized in that, The bottom of the pool (2) is provided with a mud collection ditch, and the two sides of the mud collection ditch are 8°-10° slope.

8. The pulse water distribution device for the hydrolysis acidification tank according to claim 7, characterized in that, A sludge discharge pipe (4) is installed at the bottom of the sludge collection ditch, and a pneumatic butterfly valve is installed on the sludge discharge pipe (4).

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