Multi-point pulse anti-air-resistance water distributor for hydrolysis acidification pool

Abstract

According to the multi-point pulse air-resistance-preventing water distributor for the hydrolysis acidification pool, a liquid level meter is arranged to achieve the liquid level observation function, a pulser is arranged to mainly achieve the pulse drainage function, an inclined tee joint arranged on a branch water distribution device can effectively separate air carried by inlet water, gas in a pipeline is exhausted to the upper portion, it is guaranteed that the device distributes water smoothly, and the water distribution efficiency is improved. Meanwhile, the pipeline is arranged to be a transparent pipe, the water inlet or water cut-off state can be observed through the transparent pipe, whether the air resistor or a water distribution pipeline on the lower portion of the air resistor is blocked or not is judged, an exhaust valve is installed at the top end of the transparent pipe, air can be exhausted at the beginning of water inlet, water is prevented from being discharged, and air can enter the air resistor after water inlet is stopped; and the functions of purging the exhaust valve and dredging the upper pipeline are achieved. When the air resistor or the water distribution pipeline on the lower portion of the air resistor is blocked, the water inlet valve can be closed, the loose joint can be detached, high-pressure water washing or high-pressure air blowing can be adopted, the water distribution pipeline on the lower portion of the air resistor can be detached or replaced conveniently through the loose joint, and local cleaning and component replacement of the water distribution device are facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of wastewater treatment, in particular to a multi-point pulse air-blocking proof water distributor for a hydrolysis acidification tank. Background Art

[0002] Currently, hydrolysis and acidification reactors are the most commonly used process for biochemical wastewater treatment, widely used in various sewage treatment projects. For the treatment of difficult-to-degrade industrial wastewater, hydrolysis and acidification reactors have become an essential treatment process. Hydrolysis and acidification reactors control anaerobic biological reactions within the hydrolysis and acidification stages. Using anaerobic or facultative bacteria in these stages, they hydrolyze suspended organic solids and difficult-to-biodegrade macromolecules (including carbohydrates, fats, and lipids) into soluble organic matter and readily biodegradable small molecules. These small molecules are then converted into volatile fatty acids by acidifying bacteria. There are four main structural forms: 1. Upflow hydrolysis acidification sludge blanket reactor: In a single reactor, sewage flows evenly from the bottom of the reactor through the sludge layer (average sludge concentration is 15g / L~25g / L) from the water distribution device at the bottom of the reactor to the top of the reactor, achieving hydrolysis and acidification and removing suspended solids. 2. Completely mixed hydrolysis acidification sludge blanket reactor: A stirring device is installed in the reactor to completely mix the sewage and sludge to achieve hydrolysis and acidification. It is usually followed by a sedimentation tank to separate the sewage and sludge and return the sludge to the hydrolysis and acidification reactor. 3. Packed hydrolysis acidification sludge blanket reactor: A packing is placed in the hydrolysis and acidification reactor. A biofilm is attached to the packing, and the sewage flows through it in contact with the biofilm. 4. Hybrid hydrolysis acidification sludge blanket reactor: A hydrolysis-acidification reactor combines a fully mixed and packed hydrolysis-acidification reactor. Among these reactor types, the upflow hydrolysis-acidification reactor offers the highest efficiency, best results, and lowest investment, making it widely used. The reliability of its core distribution device, the water distributor, is crucial for achieving optimal performance. One of the key conditions for the smooth operation of the hydrolysis tank is ensuring adequate contact between sludge and wastewater, so the water distribution system at the bottom of the system should be as uniform as possible.The water distribution system of the hydrolysis reactor is a critical design feature. To ensure uniform water inflow to the bottom of the reactor, a "water distributor" is necessary to distribute the incoming water to multiple inlet points. The water distributor is placed at the top of the upflow hydrolysis-acidification reactor and connected to one or more water distribution pipes (inlet pipes) at the bottom, extending down to the bottom of the tank. Water enters the hydrolysis-acidification reactor evenly from the distributor and pipes. Currently, two main types of water distributors are available on the market: single-tube pulse distributors and multi-point distributors. Single-tube pulse distributors use a tank to store a certain amount of wastewater and are equipped with a pulse mechanism. When the tank is full, it empties all the water into the hydrolysis-acidification tank at once, then continues to fill and drain water, forming a repetitive process. These distributors are characterized by short drainage times and high instantaneous water flow, which increases the flow rate at the bottom outlet, reduces blockages, and loosens sludge. There are two main types of multi-point water distributors. One uses multiple pipes arranged in a circle (with additional pipes arranged internally), with the inlet pipe and trough located in the center. Openings are located on the inside of the pipes, and each pipe has a corresponding distribution pipe at its base. The other type simply divides a single water tank into several compartments, with the inlet pipe and trough located in the center. Multiple distribution pipes are installed at the base of each compartment. The distribution pipes extend deep into the tank floor, continuously distributing the incoming water to each distribution pipe before entering the hydrolysis and acidification tank.

[0003] There are certain problems in the use of the above two devices. The single-tube pulse water distributor generally has only one water outlet. The water distribution pipe adopts the mother branch pipe method, and the branch pipe adopts multi-hole water distribution. This form cannot control the water outlet flow of each water distribution hole. The designer can only determine the orifice diameter and spacing according to ideal conditions. However, in reality, there is several meters of sludge in the upflow hydrolysis acidification reactor. The sludge density and compaction are uneven. The orifice water flow in the thick area is small, and the orifice water flow in the loose area is large, and the vicious cycle will gradually worsen. Eventually, large areas of the orifices will be blocked, which may exceed 50%. Moreover, this situation occurs at the bottom of the pool and cannot be observed and detected. There are no good flushing or purge measures, and the pool can only be completely emptied to dredge. The water level difference is about 2 meters, and the energy consumption is high. It can be inferred that its actual usage value is only about 40% of the optimal value; the multi-point water distributor has the following problems: there is no pulse, the incoming water flow distributed to each water distribution pipe is very small, there is no impact force, the bias flow blockage rate exceeds 50%, and the instantaneous flow of a single water distribution point is small, which can only disturb 30~50% of the service area. Although it is possible to observe and detect whether a single water distribution pipe is blocked, the blockage frequency is too high, and flushing or blowing requires disassembling the water distribution pipe from under the water surface. The actual operation is very cumbersome and difficult, and the air on the upper part of the water inlet pipe cannot be discharged. The incoming water can only flow from one side, which greatly increases the resistance, resulting in increased energy consumption or increased investment in large-diameter pipelines. Therefore, the hydrolysis acidification reaction tank (device) equipped with a multi-point water distributor is only about 30% of the optimal value. Utility Model Content

[0004] In view of the above technical problems, the utility model provides a multi-point pulse anti-air-blockage water distributor for a hydrolysis acidification tank, which is characterized by being composed of a main structure, a water outlet pipe, and an anti-air-blockage device. The water outlet pipe is installed below the main structure, and the anti-air-blockage device is installed at one end of the water outlet pipe.

[0005] The main structure consists of a box body, a partition, a liquid level gauge, a pulser, a water inlet pipe, a leg A, a leg B, a leg C, a leg D, a cover plate, and a water outlet. Several partitions are evenly installed inside the box body, a water inlet area is set in the middle of the box body, and several water outlets are opened at the bottom of the box body. Pulsators are respectively set above the water outlets, and water outlet pipes A are respectively installed below the water outlets. A cover plate is installed on the upper part of the box body, and holes are evenly opened above the cover plate. Liquid level gauges are respectively installed in the holes. A hole is opened in the middle of the cover plate to install a water inlet pipe. The water inlet pipe is connected to the water inlet area. Leg A is installed at the bottom of the box body, and leg B is installed on the side of leg A, leg C is installed on the side of leg B, and leg D is installed on the side of leg C.

[0006] One end of the water outlet pipe is connected to the water outlet.

[0007] The anti-gas blockage device is composed of an oblique tee, a transparent tube, an inlet valve, a flexible joint A, a flexible joint B, an exhaust valve, and a connecting pipe. The flexible joint A is installed below the exhaust valve, the transparent tube is installed below the flexible joint A, the oblique tee is installed below the transparent pipe, the inlet valve is installed on the oblique tee, the side end of the oblique tee is connected to the connecting pipe, the connecting pipe is connected to the outlet pipe, and the flexible joint B is installed below the oblique tee.

[0008] One end of the connecting pipe can be connected to one to five branch water distribution devices.

[0009] Optionally, the oblique tee can be replaced with a straight tee.

[0010] Beneficial effects of the utility model:

[0011] The utility model discloses a multi-point pulse anti-air-blockage water distributor for a hydrolysis acidification tank. A plurality of partitions are arranged inside the device body, and the partitions divide the box body into a plurality of areas. A pulser is arranged in each area, and each pulser can realize pulse water discharge. At the same time, a liquid level gauge is arranged to observe the liquid level. The pulser is mainly arranged to play the function of pulse water discharge. The anti-air-blockage device can discharge the gas in the pipeline to prevent blockage. The inclined tee arranged in the anti-air-blockage device can effectively separate the air carried by the incoming water, and discharge the gas in the pipeline to the upper part, so as to ensure smooth water distribution of the device. At the same time, the pipeline is arranged as a transparent pipe, and the water inlet or water stop status can be observed through the transparent pipe to judge whether the air blocker or the water distribution pipe below it is blocked. An exhaust valve is installed on the top of the transparent pipe to discharge air when water inlet starts and prevent water from being discharged. After the water inlet stops, air can enter the anti-air blocker to purge the exhaust valve and clear the upper pipe. When the air resistor or its lower water distribution pipe is blocked, you can close the water inlet valve, disassemble the joint, and use high-pressure water flushing or high-pressure air blowing. The setting of the joint facilitates the disassembly or replacement of the lower water distribution pipe of the air resistor, and facilitates local cleaning of the water distribution device and replacement of parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the overall structure of a multi-point pulse anti-air-blockage water distributor for a hydrolysis acidification tank according to the present invention;

[0013] Figure 2 This is a schematic diagram of the overall structure of a multi-point pulse anti-air-blockage water distributor for a hydrolysis acidification tank according to the present invention;

[0014] Figure 3 This is a partial structural diagram of a multi-point pulse anti-air-lock water distributor for a hydrolysis acidification tank according to the present invention;

[0015] Figure 4 This is a partial structural diagram of a multi-point pulse anti-air-lock water distributor for a hydrolysis acidification tank according to the present invention;

[0016] Figure 5 This is a partial structural diagram of a multi-point pulse anti-air-lock water distributor for a hydrolysis acidification tank according to the present invention;

[0017] As shown in the figure: 1. Box body, 2. Partition, 3. Liquid level gauge, 4. Pulser, 5. Water inlet pipe, 6. Leg A, 7. Leg B, 8. Cover, 9. Water outlet, 10. Water outlet pipe, 11. Oblique tee, 12. Transparent tube, 13. Water inlet valve, 14. Union A, 15. Union B, 16. Exhaust valve, 17. Connecting pipe, 18. Water inlet area, 19. Leg C, 20. Leg D. DETAILED DESCRIPTION

[0018] The following is a clear and complete description of the technical solution of the present invention in conjunction with the accompanying drawings. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0019] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating positions or relationships, are based on the positions or relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0020] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be internal communication between two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0021] Example 1

[0022] like Figure 1 、 Figure 2 As shown, a number of partitions 2 are evenly installed inside the box body 1, a water inlet area 18 is set in the middle of the box body 1, a number of water outlets 9 are opened at the bottom of the box body 1, pulsers 4 are respectively set above the water outlets 9, and water outlet pipes 10 are respectively installed below the water outlets 9. A cover plate 8 is installed on the upper part of the box body 1, and holes are evenly opened above the rice cover 8, and liquid level gauges 3 are respectively installed in the holes. A water inlet pipe 5 is installed in the middle of the cover plate 8, and the water inlet pipe 5 is connected to the water inlet area 18. A support leg A6 is installed at the bottom of the box body 1. Leg B7 is installed on the side of leg A6, leg C19 is installed on the side of leg B7, leg D20 is installed on the side of leg C19, a union A14 is installed below the exhaust valve 16, a transparent tube 12 is installed below the union A14, an oblique tee 11 is installed below the transparent tube 12, an inlet valve 13 is installed on the oblique tee 11, the side end of the oblique tee 11 is connected to the connecting pipe 17, the connecting pipe 17 is connected to the outlet pipe 10, and a union B15 is installed below the oblique tee 11.

[0023] Example 2

[0024] When the present invention is used, water flows from the water inlet pipe 5 into the water inlet area 18, and then flows between each partition 2. The pulser 4 performs a pulse drainage function. The water flows through each outlet pipe 10 via the oblique tee 11 into the transparent tube 12 for water distribution. The exhaust valve 16 at the top of the transparent tube 12 can exhaust air and prevent water from being discharged when water starts to flow in. The water inflow or outflow status can be observed through the transparent tube 12.

[0025] The above shows and describes the basic principles, main features and advantages of the present invention. The various components mentioned in the present invention are common technologies in the existing field. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements fall within the scope of the present invention. The scope of protection claimed in this utility model is defined by the appended claims and their equivalents.

Claims

1. A multi-point pulse anti-air-lock water distributor for a hydrolysis acidification tank, characterized in that It is composed of a main structure, a water outlet pipe, and an anti-air blockage device. The water outlet pipe is installed below the main structure, and the anti-air blockage device is installed at one end of the water outlet pipe. The main structure is composed of a box body, a partition, a liquid level gauge, a pulser, a water inlet pipe, a water inlet area, support legs A, support legs B, support legs C, support legs D, a cover plate, and a water outlet. Several partitions are evenly installed inside the box body, and several water outlets are opened at the bottom of the box body. Pulsators are respectively set above the water outlets, and water outlet pipes A are respectively installed below the water outlets. A cover plate is installed on the upper part of the box body, and holes are evenly opened above the cover plate. Liquid level gauges are respectively installed in the openings, and the cover plate A water inlet pipe is installed through an opening in the bottom of the box, the water inlet pipe is connected to the water inlet area, support leg A is installed under the box body, support leg B is installed on the side of support leg A, support leg C is installed on the side of support leg B, and support leg D is installed on the side of support leg C. The anti-air blockage device consists of an oblique tee, a transparent tube, an inlet valve, a union A, a union B, an exhaust valve, and a connecting pipe. Union A is installed below the exhaust valve, a transparent tube is installed below the union A, an oblique tee is installed below the transparent tube, the water inlet valve is installed on the oblique tee, the side end of the oblique tee is connected to the connecting pipe, the connecting pipe is connected to the water outlet pipe, and a union B is installed below the oblique tee.

2. A multi-point pulse anti-air-lock water distributor for a hydrolysis acidification tank according to claim 1, characterized in that One end of the water outlet pipe is connected to the water outlet.

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