Water distribution pipeline system of up-flow anaerobic treatment reactor

Abstract

The utility model provides a water distribution pipeline system of an up-flow anaerobic treatment reactor. The water distribution pipeline system comprises a water inlet main pipe; the water distribution annular pipe is positioned below the water inlet main pipe; the water distribution branch pipe group comprises a plurality of water distribution branch pipes, one end of each water distribution branch pipe is connected with the water distribution annular pipe, and the other end of each water distribution branch pipe is used for extending into the sewage treatment tank body; the water inlet diversion pipe is of a Y-like Y-shaped pipe structure, comprises a water inlet end and two water outlet ends and is perpendicular to the plane where the water distribution annular pipe is located, the water inlet end of the water inlet diversion pipe is communicated with the water outlet end of the water inlet main pipe, one water outlet end of the water inlet diversion pipe is connected with the water distribution annular pipe, and the other water outlet end of the water inlet diversion pipe is connected with the water distribution annular pipe; the other water outlet end of the water inlet diversion pipe is connected with the water distribution annular pipe; wherein sewage to be treated flows in from the water inlet pipe, flows into the water distribution annular pipe from two water outlet ends of the water inlet diversion pipe through the water inlet diversion pipe, and then flows into each water distribution branch pipe in the water distribution branch pipe group from the water distribution annular pipe.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of upflow anaerobic treatment reactor, in particular to a water distribution pipeline system of upflow anaerobic treatment reactor. BACKGROUND

[0002] The structure of UASB (Upflow Anaerobic Sludge Bed) reactor or upflow anaerobic treatment reactor mainly consists of water inlet and water distribution pipeline system, granular sludge reaction zone (or anaerobic sludge bed), separator, water outlet system and sludge discharge system.

[0003] The wastewater to be treated is sent into the upflow anaerobic treatment reactor by a water pump and is transported from the bottom of the upflow anaerobic treatment reactor;

[0004] A large amount of anaerobic granular sludge is retained in the granular sludge reaction zone, and the sludge has good sedimentation and coagulation properties. The wastewater to be treated flows from the bottom of the anaerobic sludge bed and is mixed with the sludge in the granular sludge reaction zone. The microorganisms in the sludge decompose the organic matter in the wastewater to produce biogas, thereby achieving anaerobic treatment of the wastewater to be treated.

[0005] At present, the water distribution mode of the upflow anaerobic treatment reactor is mainly a one-pipe multi-point layout mode, in which one main water distribution pipe is connected to multiple water distribution sub-pipes. There is a problem of uneven water distribution, and the wastewater cannot be uniformly distributed to the anaerobic sludge bed, affecting the treatment effect.

[0006] The wastewater generated during the production of white liquor, such as Maotai-flavor liquor, contains distiller's grains, chaff and the like. Although the wastewater has been pretreated in the early stage, according to the operation of the wastewater treatment plant, fine impurities such as chaff can still enter the water distribution pipeline of the UASB reactor through the regulating tank. After a long period of operation of the pipeline, impurities and sludge can accumulate, which further aggravates the problem of blockage of the water distribution pipe, resulting in more serious uneven water distribution, affecting the wastewater flow into the UASB reactor and the treatment effect. SUMMARY

[0007] The present application provides a water distribution pipeline system of upflow anaerobic treatment reactor, comprising:

[0008] A water inlet main pipe is arranged above the wastewater treatment tank body of the upflow anaerobic treatment reactor and is used to transport wastewater to be treated to the wastewater treatment tank body;

[0009] A water distribution annular pipe is arranged above the wastewater treatment tank body and below the water inlet main pipe;

[0010] A water distribution sub-pipe group comprises a plurality of water distribution sub-pipes arranged at intervals on the water distribution annular pipe. One end of each water distribution sub-pipe is connected to the water distribution annular pipe, and the other end of each water distribution sub-pipe is used to extend into the wastewater treatment tank body.

[0011] The water inlet shunt pipe has a Y-shaped three-prong pipe structure, and includes one water inlet end and two water outlet ends. The water inlet shunt pipe is arranged perpendicularly to the plane in which the water distribution ring pipe is arranged. The water inlet end of the water inlet shunt pipe is in communication with the water outlet end of the water inlet main pipe. One water outlet end of the water inlet shunt pipe is connected to the water distribution ring pipe, and the other water outlet end of the water inlet shunt pipe is connected to the water distribution ring pipe.

[0012] In the water distribution pipe system, the sewage to be treated flows into the water inlet pipe, flows into the water distribution ring pipe from the two water outlet ends of the water inlet shunt pipe, and then flows into each water distribution sub-pipe in the water distribution sub-pipe group from the water distribution ring pipe, so that the sewage to be treated flows into the bottom of the sewage treatment tank body.

[0013] In some optional embodiments of the present application, the water distribution ring pipe is in a circular rectangular shape and has a length direction and a width direction. The water distribution ring pipe has a first long pipe segment and a second long pipe segment arranged oppositely in the length direction. One water outlet end of the water inlet shunt pipe is connected to the first long pipe segment, and the other water outlet end of the water inlet shunt pipe is connected to the second long pipe segment.

[0014] In some optional embodiments of the present application, the water inlet main pipe is provided with a water inlet flow meter and two water inlet main pipe control valves. The water inlet flow meter is arranged between the two water inlet main pipe control valves in the water inlet direction of the water inlet main pipe.

[0015] In some optional embodiments of the present application, the water distribution pipe system further includes a water inlet standby pipe. The water inlet standby pipe is arranged above the sewage treatment tank body of the upflow anaerobic treatment reactor. The water inlet standby pipe is connected to the water inlet main pipe at a first connection point. The first connection point is arranged after the two water inlet main pipe control valves in the water inlet direction of the water inlet main pipe.

[0016] In some optional embodiments of the present application, the water inlet standby pipe is provided with a water inlet standby pipe control valve.

[0017] In some optional embodiments of the present application, the water inlet main pipe is made of stainless steel.

[0018] In some optional embodiments of the present application, the water inlet main pipe is made of 304 stainless steel.

[0019] In some optional embodiments of the present application, the water distribution ring pipe is made of stainless steel.

[0020] In some optional embodiments of the present application, the water distribution ring pipe is made of 304 stainless steel.

[0021] In some optional embodiments of the present application, the water distribution pipe system further includes:

[0022] The bypass pipe is connected with the water inlet main pipe to form a second connection, and the bypass pipe is used to adjust the bypass water volume to control the inflow of the sewage to be treated. The bypass water volume refers to the water volume of the sewage that does not pass through the anaerobic unit after being discharged from the adjusting tank, and is used to supplement the content of organic matter in the aerobic unit and reduce the carbon source agent dosage of the aerobic unit.

[0023] In some optional embodiments of the present application, the pipe axis of the bypass pipe is parallel to the length direction, and the bypass pipe is provided with a bypass pipe and a bypass pipe control valve.

[0024] In some optional embodiments of the present application, the bypass pipe is made of stainless steel.

[0025] In some optional embodiments of the present application, the bypass pipe is made of 304 stainless steel.

[0026] In some optional embodiments of the present application, the water inlet shunt pipe has a confluence main pipe section, a first shunt elbow pipe section and a second shunt elbow pipe section, the pipe axis of the confluence main pipe section is perpendicular to the plane where the water distribution ring pipe is located, the first shunt elbow pipe and the second shunt elbow pipe are symmetrically arranged in the pipe axis of the confluence main pipe section and generally have an inverted U shape, the water inlet end is located in the confluence main pipe section, and the two water outlet ends are respectively located in the first shunt elbow pipe section and the second shunt elbow pipe section.

[0027] In some optional embodiments of the present application, in the length direction, the water inlet shunt pipe is located in a region 1 / 6L to 1 / 2L away from the first end of the water distribution ring pipe, and L is the length of the water distribution ring pipe in the length direction.

[0028] In some optional embodiments of the present application, the water inlet shunt pipe is located in a region 1 / 3L to 1 / 2L away from the first end of the water distribution ring pipe, further, the first shunt elbow pipe section and the first long pipe section form a third connection, the second shunt elbow pipe and the second long pipe section form a fourth connection, the pipe end of the first shunt elbow pipe section at the third connection is provided with a first flow guide plate, the pipe end of the second shunt elbow pipe section at the fourth connection is provided with a second flow guide plate, the first flow guide plate and the second flow guide plate are both curved arc plates which are arranged in space apart from the pipe bottom of the water distribution ring pipe, and the flow guide directions of the first flow guide plate and the second flow guide plate are opposite in the length direction to form a circulating flow in the water distribution ring pipe.

[0029] In some optional embodiments of the present application, the curved arc plate is arranged in space apart from the pipe bottom of the water distribution ring pipe at a distance of 5cm to 10cm.

[0030] In some optional embodiments of the present application, the water distribution pipe system further comprises:

[0031] The agent dosing pipe is connected with the confluence main pipe section to form a fifth connection, and is used to dose liquid medicine to adjust the pH value of the sewage to be treated in the sewage treatment tank.

[0032] In some optional embodiments of the present application, the water distribution pipeline system further comprises:

[0033] A sludge return pipe is arranged to return sludge at the bottom of the sewage treatment tank body to the sewage treatment tank body, and the sludge return pipe comprises a sludge inflow end and a sludge outflow end, the sludge outflow end, the water inflow end of the water inflow branch pipe and the water outflow end of the water inflow main pipe are connected to form a sixth connection.

[0034] In some optional embodiments of the present application, a sludge return flow meter and a sludge return pipe valve are arranged on the sludge return pipe.

[0035] In some optional embodiments of the present application, the water distribution pipeline system further comprises:

[0036] A drainage pipe is arranged on a short pipe section of the water distribution annular pipe and extends along the length direction to drain impurities, and the water distribution annular pipe has two opposite short pipe sections in the width direction;

[0037] A slag blocking screen pocket is arranged at the discharge port of the drainage pipe.

[0038] In some optional embodiments of the present application, the slag blocking screen pocket is made of stainless steel.

[0039] In some optional embodiments of the present application, the slag blocking screen pocket is made of 304 stainless steel.

[0040] In some optional embodiments of the present application, the depth of the slag blocking screen pocket is 30 cm to 40 cm.

[0041] In some optional embodiments of the present application, the water inflow branch pipe is arranged close to one of the two opposite short pipe sections, and the drainage pipe is connected to the other of the two opposite short pipe sections.

[0042] In some optional embodiments of the present application,

[0043] A plurality of water distribution branch pipes are arranged at intervals along the first long pipe section and the second long pipe section,

[0044] The water distribution branch pipe comprises an inverted L-shaped leading pipe section, a connecting transparent pipe section and a vertical dredging pipe section, and the connecting transparent pipe section and the vertical dredging pipe section are arranged perpendicularly to the water distribution annular pipe;

[0045] One end of the inverted L-shaped leading pipe section is connected to the water distribution annular pipe, the other end of the vertical dredging pipe section is connected to the vertical dredging pipe section to form a seventh connection, and a first water distribution branch pipe control valve is arranged on the inverted L-shaped leading pipe section;

[0046] In the liquid flow direction of the vertical dredging pipe section, a second water distribution branch pipe control valve is arranged on the vertical dredging pipe section before the seventh connection;

[0047] The outflow end of the transparent pipe section is connected with the vertical drainage pipe section, and the outflow end of the transparent pipe section is provided with a third water distribution branch pipe control valve.

[0048] In some optional embodiments of the present application, the connecting transparent pipe section is a hose;

[0049] In some optional embodiments of the present application, the water distribution branch pipe has an overall h-shaped structure.

[0050] In some optional embodiments of the present application, the pipe sections of the water distribution branch pipe other than the connecting transparent pipe section are made of stainless steel material.

[0051] In some optional embodiments of the present application, the pipe sections of the water distribution branch pipe other than the connecting transparent pipe section are made of 304 stainless steel material.

[0052] In some optional embodiments of the present application, further comprising:

[0053] The water distribution pipes are connected one by one with the water distribution branch pipes, one end of the water distribution pipe is connected with the second water distribution branch pipe control valve, and the other end of the water distribution pipe is arranged at the bottom of the sewage treatment tank body.

[0054] In some optional embodiments of the present application, the water distribution pipe is made of PE material.

[0055] In some optional embodiments of the present application, the top end of the vertical drainage pipe section is provided with a water distribution branch pipe flushing port.

[0056] Beneficial effects:

[0057] The water distribution pipeline system of the upflow anaerobic treatment reactor of the present application is designed by setting the water inlet main pipe, the water distribution ring pipe, the water distribution branch pipe group, and the water inlet shunt pipe, so that the treated sewage water inlet main pipe enters the ring pipe first, forms a circulating flow in the ring pipe, and the water pressure of the water flow in the pipe is basically uniform. The water pressure of the water flow in each water distribution branch pipe of the water distribution branch pipe group is closer, the water inlet of the UASB reactor is more uniform, and the water distribution branch pipe is also prevented from being blocked. It ensures that the sewage is evenly distributed to the anaerobic sludge bed, and improves the treatment effect of the treated sewage.

[0058] The water distribution pipeline system of the upflow anaerobic treatment reactor makes the upflow anaerobic treatment reactor have excellent sewage treatment capacity, and the sewage flows smoothly, especially suitable for treating wastewater generated in the production process of white wine. BRIEF DESCRIPTION OF DRAWINGS

[0059] Figure 1 It is the side internal structure diagram of the sewage treatment tank body in the embodiments of the present application;

[0060] Figure 2Figure 2 is a front view of the internal structure of the sewage treatment tank body in the embodiment of the present application;

[0061] Figure 3 Figure 3 is a top view of the upflow anaerobic treatment reactor in the embodiment of the present application;

[0062] Figure 4 Figure 4 is a front view of the upflow anaerobic treatment reactor in the embodiment of the present application; Figure 3 Figure 5 is a sectional view along the direction of E-E in the embodiment of the present application;

[0063] Figure 5 Figure 6 is a sectional view along the direction of F-F in the embodiment of the present application; Figure 3 Figure 7 is a front view of the upflow anaerobic treatment reactor in the embodiment of the present application;

[0064] Figure 6 Figure 8 is a front view of the upflow anaerobic treatment reactor in the embodiment of the present application;

[0065] Figure 7 Figure 9 is a schematic view of the setting position of the first and second flow guide plates in the upflow anaerobic treatment reactor in the embodiment of the present application.

[0066] Reference signs:

[0067] 1 - water inlet main pipe; 2 - water inlet flow meter; 3 - water inlet main pipe control valve; 4 - bypass pipe; 5 - bypass pipe flow meter; 6 - bypass pipe control valve; 7 - reagent feeding pipe; 8 - water inlet distribution pipe; 81 - converging main pipe section; 82 - first distribution elbow section; 83 - second distribution elbow section; 9 - water distribution annular pipe;

[0068] 10 - water distribution sub-pipe; 101 - inverted L-shaped leading pipe section; 102 - first water distribution sub-pipe control valve; 103 - vertical dredging pipe section; 104 - second water distribution sub-pipe control valve;

[0069] 11 - sludge return pipe; 12 - sludge return flow meter; 13 - sludge return pipe valve; 14 - residue retaining screen pocket; 15 - emptying pipe valve; 16 - emptying pipe; 17 - water collecting tank; 181 - first flow guide plate; 182 - second flow guide plate; 19 - water distribution pipe; 20 - biogas collecting main pipe; 201 - biogas collecting branch pipe; 21 - connecting transparent pipe section; 22 - third water distribution sub-pipe control valve; 23 - water distribution pipe flange; 24 - water distribution sub-pipe flushing port; 25 - water inlet standby pipe; 251 - water inlet standby pipe control valve;

[0070] 26 - sewage treatment tank body; A - water distribution area; B - reaction area; C - separation area; D - collection area; D1 - gas chamber; D2 - retaining wall; D3 - water outlet weir; D4 - water passage hole; D5 - reflecting cone; D6 - three-phase separator; D7 - connecting pipe. DETAILED DESCRIPTION

[0071] The present application will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the scope of the present application.

[0072] like Figure 1 and Figure 2 As shown, the upflow anaerobic reactor in this embodiment includes a water distribution pipeline system and a wastewater treatment tank 26. The water distribution pipeline system is used at least to convey wastewater to be treated to the bottom of the wastewater treatment tank 26.

[0073] In some examples, the wastewater to be treated is the production wastewater of Maotai-flavor liquor.

[0074] The wastewater treatment tank 26 is arranged from bottom to top as follows: water distribution zone A, reaction zone B, separation zone C, and collection zone D.

[0075] Distribution zone A is located at the bottom of wastewater treatment tank 26. Distribution zone A includes multiple reflector cones D5 and connecting pipes D7. The wastewater treatment tank's distribution pipeline system is used at least to transport the wastewater to be treated to distribution zone A, allowing the wastewater to enter the upflow anaerobic reactor from the bottom of wastewater treatment tank 26. Reflector cones D5 are a common feature at the bottom of upflow anaerobic reactors. The effluent structure of the distribution pipeline system at the bottom of wastewater treatment tank 26 is generally located on the conical surface of reflector cone D5, allowing the wastewater to diffuse along the surface of reflector cone D5 after flowing out, and to quickly disperse and flush towards the bottom of the reactor, ensuring sufficient contact between sludge and wastewater.

[0076] Reaction zone B includes an anaerobic sludge bed. The anaerobic sludge bed contains a large amount of anaerobic granular sludge. The sludge bed, composed of flocculent or granular sludge, has excellent sedimentation and flocculation properties. The wastewater to be treated flows into the bottom of the anaerobic sludge bed from distribution zone A, mixing and contacting with the sludge in the granular sludge layer. Microorganisms in the sludge decompose the organic matter in the wastewater, converting it into biogas. The biogas is continuously released in the form of tiny bubbles, which merge as they rise, forming larger bubbles. At the top of the anaerobic sludge bed, the biogas agitation creates a low-concentration granular sludge zone (or a suspended sludge layer) with a relatively low sludge concentration. Tiny particles escape with the water flow and rise together into separation zone C.

[0077] Separation zone C includes multiple three-phase separators D6. Biogas (gas) produced in reaction zone B, treated water (liquid), and sludge particles (solid) are separated in the three-phase separators D6. After separation, biogas gathers in gas chamber D1, sludge particles return to the sludge suspension layer, and treated water overflows from effluent weir D3 and is collected by water collection tank 17 set on one side of sewage treatment tank 26 through water passage D4.

[0078] The top of the sewage treatment tank body 26 is provided with the collection area D, which includes the water outlet weir D3 and the gas chamber D1 arranged on the side wall of the sewage treatment tank body 26. The sewage treatment tank body 26 includes two spaced apart retaining walls D2, one end of the retaining wall D2 is connected to the top cover of the sewage treatment tank body 26, and the other end of the retaining wall D2 extends to the bottom of the sewage treatment tank body 26. In some examples, the retaining wall D2 extends to the separation area C, and the other end of the retaining wall D2 is arranged flush with the three-phase separator D6 closest to the bottom of the sewage treatment tank body 26, or the other end of the retaining wall D2 is arranged beyond the three-phase separator D6 closest to the bottom of the sewage treatment tank body 26. The gas chamber D1 is formed between the two retaining walls D2, and is used to collect biogas separated from the three-phase separator D6 during the treatment process.

[0079] In some optional embodiments of the second aspect of the present application, the upflow anaerobic treatment reactor further includes a biogas collection main pipe 20 and a plurality of biogas collection branch pipes 201 arranged vertically to the plane on which the water distribution ring pipe is arranged and in communication with the gas chamber D1, and the biogas collection branch pipes 201 are arranged in columns in the length direction. The biogas collection main pipe 20 is arranged above and connected to the plurality of biogas collection branch pipes 201.

[0080] In some optional embodiments of the second aspect of the present application, the water distribution ring pipe is arranged vertically corresponding to the gas chamber D1.

[0081] The inventors have found through in-depth research that the existing upflow anaerobic treatment reactor mainly adopts a water distribution mode of one pipe and multiple points, that is, one main water distribution pipe is connected to multiple water distribution branch pipes 10. There is a problem of uneven water distribution, and the sewage cannot be uniformly distributed into the reaction bed, affecting the treatment effect. The main reason is that the front section of the water inlet main pipe 1 has high water pressure and much water, the rear end has low water pressure and little water, the reaction bed is uneven, and after a long running time, the front end has good effect, the rear end has poor effect, the overall removal effect decreases, the reactor resistance to impact load decreases, and the removal effect of the reactor is affected.

[0082] As shown in Figures 3 to 7 The present application provides a water distribution pipeline system of an upflow anaerobic treatment reactor, which comprises:

[0083] A water inlet main pipe 1 is arranged above the sewage treatment tank body 26 of the upflow anaerobic treatment reactor, and is used to transport sewage to be treated to the sewage treatment tank body 26;

[0084] A water distribution ring pipe 9 is arranged above the sewage treatment tank body 26 and below the water inlet main pipe 1;

[0085] A water distribution branch pipe group includes a plurality of water distribution branch pipes 10 arranged at intervals on the water distribution ring pipe 9, one end of each water distribution branch pipe 10 is connected to the water distribution ring pipe 9, and the other end of each water distribution branch pipe 10 is used to extend into the sewage treatment tank body 26.

[0086] The water inlet shunt pipe 8 has a Y-shaped three-prong pipe structure, including a water inlet end and two water outlet ends. The water inlet shunt pipe 8 is arranged perpendicular to the plane in which the water distribution ring pipe 9 is located. The water inlet end of the water inlet shunt pipe 8 is in communication with the water outlet end of the water inlet main pipe 1. One water outlet end of the water inlet shunt pipe 8 is connected to the water distribution ring pipe 9. The other water outlet end of the water inlet shunt pipe 8 is connected to the water distribution ring pipe 9.

[0087] The water inlet shunt pipe 8 has a Y-shaped three-prong pipe structure, including a water inlet end and two water outlet ends. The water inlet shunt pipe 8 is arranged perpendicular to the plane in which the water distribution ring pipe 9 is located. The water inlet end of the water inlet shunt pipe 8 is in communication with the water outlet end of the water inlet main pipe 1. One water outlet end of the water inlet shunt pipe 8 is connected to the water distribution ring pipe 9. The other water outlet end of the water inlet shunt pipe 8 is connected to the water distribution ring pipe 9.

[0088] The water inlet shunt pipe 8 has a Y-shaped three-prong pipe structure, including a water inlet end and two water outlet ends. The water inlet shunt pipe 8 is arranged perpendicular to the plane in which the water distribution ring pipe 9 is located. The water inlet end of the water inlet shunt pipe 8 is in communication with the water outlet end of the water inlet main pipe 1. One water outlet end of the water inlet shunt pipe 8 is connected to the water distribution ring pipe 9. The other water outlet end of the water inlet shunt pipe 8 is connected to the water distribution ring pipe 9.

[0089] In some optional embodiments of the present application, the water distribution ring pipe 9 is circular rectangular and has a length direction and a width direction. The water distribution ring pipe 9 has a first long pipe segment and a second long pipe segment that are oppositely arranged and extend in the length direction. One water outlet end of the water inlet shunt pipe 8 is connected to the first long pipe segment. The other water outlet end of the water inlet shunt pipe 8 is connected to the second long pipe segment.

[0090] In some optional embodiments of the present application, the water distribution ring pipe 9 has other ring structures, such as a circular ring, an elliptical ring, etc.

[0091] In some optional embodiments of the present application, the water distribution ring pipe 9 is made of stainless steel, preferably 304 stainless steel, and has a pipe diameter of 200 mm. The water distribution ring pipe 9 is made of full welding using four 90° elbows and straight pipes. The length of the water distribution ring pipe 9 is set according to the length of the UASB reactor, and is generally the same as the length of the reaction zone B of the UASB reactor. The width of the water distribution ring pipe 9 is between the water distribution sub-pipes 10.

[0092] In some optional embodiments of the present application, the water inlet main pipe 1 is provided with a water inlet flow meter 2 and two water inlet main pipe control valves 3. The water inlet flow meter 2 is arranged between the two water inlet main pipe control valves 3 in the water inlet direction of the water inlet main pipe 1.

[0093] In these embodiments, the water inlet main pipe control valve 3 arranged on both sides of the water inlet flow meter 2 can facilitate the control of the inflow of sewage to be treated when the water inlet flow meter 2 is being maintained.

[0094] In some optional embodiments of the present application, the water distribution pipe system further comprises a water inlet backup pipe 25 arranged above the sewage treatment tank body 26 of the upflow anaerobic treatment reactor, and the water inlet backup pipe 25 is connected with the water inlet main pipe 1 at the first connection, which is arranged after the two water inlet main pipe control valves 3 in the water inlet direction of the water inlet main pipe 1.

[0095] In these embodiments, when the flow meter or valve on the water inlet main pipe 1 needs to be maintained or troubleshooted, the water inlet backup pipe 25 can be used to transport the sewage to be treated to the sewage treatment tank body 26.

[0096] In some optional embodiments of the present application, the water inlet backup pipe 25 is provided with a water inlet backup pipe control valve 251.

[0097] In some optional embodiments of the present application, the water inlet main pipe 1 is made of stainless steel material.

[0098] In some optional embodiments of the present application, the water inlet main pipe 1 is made of 304 stainless steel material.

[0099] The water inlet main pipe 1 can also be made of other stainless steel pipes with corrosion resistance. The water inlet flow meter 2 is selected to be a flow meter with high accuracy, and the electromagnetic flow meter is preferred. The water inlet pipe control valve is made of stainless steel material, and the 304 stainless steel valve is preferred, which has corrosion resistance. The water inlet flow meter 2 and the water inlet pipe control valve need to consider the convenience of personnel operation, and are installed on the top of the UASB tank for easy observation, operation, maintenance and maintenance in the later stage.

[0100] In some optional embodiments of the present application, the water distribution ring pipe 9 is made of stainless steel material.

[0101] In some optional embodiments of the present application, the water distribution ring pipe 9 is made of 304 stainless steel material.

[0102] In some optional embodiments of the present application, the water distribution pipe system further comprises:

[0103] The bypass pipe 4 is connected with the water inlet main pipe 1 to form a second connection, and the bypass pipe 4 is used to adjust the bypass water volume to control the inflow of sewage to be treated.

[0104] In some optional embodiments of the present application, the pipe axis of the bypass pipe 4 is parallel to the length direction, and the bypass pipe 4 is provided with a bypass pipe control valve 6.

[0105] In some optional embodiments of the present application, the overpass pipe 4 is made of stainless steel.

[0106] In some optional embodiments of the present application, the overpass pipe 4 is made of 304 stainless steel.

[0107] The overpass pipe 4 is connected to the water inlet main pipe 1, and the overpass pipe flow meter 5 is preferably an electromagnetic flow meter. The overpass pipe 4 and the overpass pipe valve are preferably made of stainless steel, and the overpass pipe valve is preferably made of 304 stainless steel. The diameter of the overpass pipe 4 is preferably 50 mm. After calculating the optimal overpass amount, the overpass water amount is adjusted by the overpass pipe valve.

[0108] In some optional embodiments of the present application, the water inlet shunt pipe 8 has a converging main pipe section 81, a first shunt elbow pipe section 82, and a second shunt elbow pipe section 83. The pipe axis of the converging main pipe section 81 is perpendicular to the plane in which the water distribution ring pipe 9 is located. The first shunt elbow pipe and the second shunt elbow pipe are symmetrically arranged along the pipe axis of the converging main pipe section 81 and generally have an inverted U shape. The water inlet end is located in the converging main pipe section 81, and the two water outlet ends are located in the first shunt elbow pipe section 82 and the second shunt elbow pipe section 83, respectively.

[0109] As shown in Figure 3 and Figure 7 In some optional embodiments of the present application, in the length direction, the water inlet shunt pipe 8 is located in the region from the first end of the water distribution ring pipe 9 to 1 / 6L to 1 / 2L, and L is the length of the water distribution ring pipe 9 in the length direction.

[0110] In some optional embodiments of the present application, the water inlet shunt pipe 8 is located in the region from the first end of the water distribution ring pipe 9 to 1 / 3L to 1 / 2L.

[0111] In some optional embodiments of the present application, the first shunt elbow pipe section 82 is connected to the first long pipe section to form a third connection, and the second shunt elbow pipe is connected to the second long pipe section to form a fourth connection. The pipe end of the first shunt elbow pipe section 82 at the third connection is provided with a first flow guide plate 181, the pipe end of the first shunt elbow pipe section 82 at the third connection is provided with a first flow guide plate 181, the pipe end of the second shunt elbow pipe section 83 at the fourth connection is provided with a second flow guide plate 182, and the first flow guide plate 181 and the second flow guide plate 182 are both curved arc-shaped plates arranged in space from the bottom of the water distribution ring pipe 9. In the length direction, the flow direction of the first flow guide plate 181 is opposite to that of the second flow guide plate 182 to form a circulating flow in the water distribution ring pipe 9. As shown in Figure 7 The flow direction of the first flow guide plate 181 is towards the exhaust pipe 16, and the flow direction of the second flow guide plate 182 is opposite to that of the first flow guide plate 181, so that the water flow from the water inlet shunt pipe 8 into the water distribution ring pipe 9 forms a circulating flow.

[0112] The curved arc plate can be understood as having an arc cross section and an arc profile in the axial direction. In some examples, it can also be understood as a part of a curved pipe segment in the radial direction, and the part has a sector angle in the cross section.

[0113] In some optional embodiments of the present application, the curved arc plate is spaced apart from the bottom of the water distribution ring pipe 9 by a distance of 5 cm to 10 cm.

[0114] In some embodiments of the present application, the first flow guide plate 181 and the second flow guide plate 182 are welded inside the two pipes, which are 5 cm away from the bottom of the water distribution ring pipe 9. This reduces the damage of sewage to the bottom of the water distribution ring pipe 9, makes the sewage evenly distributed into the water distribution ring pipe 9, and forms a circulating flow in the water distribution ring pipe 9, which makes the water distribution more uniform and the reaction more stable.

[0115] In some optional embodiments of the present application, in the length direction, the water inlet distribution pipe 8 is located in a region 1 / 6L to 1 / 2L away from one end of the water distribution ring pipe 9, and L is the length of the water distribution ring pipe 9 in the length direction. The water inlet distribution pipe 8 is welded by a three-way pipe, a straight pipe, and a flange, but the water inlet distribution pipe 8 is preferably located in a region 1 / 3L to 1 / 2L. The water inlet distribution pipe 8 is located in a region 1 / 3L to 1 / 2L away from one end of the water distribution ring pipe 9, which fully considers the pipe arrangement of the UASB tank body. It not only solves the problem of water pressure and flow rate when the water inlet main pipe 1 is arranged on a single side, but also fully considers the space occupation problem caused by the central arrangement of the distribution pipe water inlet distribution pipe 8. In addition, it should be noted that the water inlet distribution pipe 8 is located in a region 1 / 3L to 1 / 2L away from one end of the water distribution ring pipe 9. The first flow guide plate 181 and the second flow guide plate 182 are more conducive to the formation of a circulating flow. In other regions, the first flow guide plate 181 and the second flow guide plate 182 cannot be arranged, otherwise, it will affect the formation of the circulating flow.

[0116] In some optional embodiments of the present application, the water distribution pipe system further comprises:

[0117] The medicament adding pipe 7 is connected with the water inlet main pipe 1 to form a fifth connection, which is used to add liquid medicine to adjust the pH value of the sewage in the sewage treatment tank 26.

[0118] In these embodiments, the medicament adding pipe is not added to the UASB water inlet main pipe 1, which is not conducive to the pH adjustment of the sewage.

[0119] The production wastewater of Jiangxiang Baijiu is acidic, the UASB reactor has requirements for the pH value of the influent, and generally, the pH value is adjusted by adding agents such as sodium hydroxide, at present, most designs are to adjust through pretreatment at the front end, the water inflow in the workshop fluctuates greatly, the pH adjustment is unstable, and it is not conducive to the water treatment effect of the UASB reactor. The embodiment of the application sets the agent adding pipe 7 to facilitate the adjustment of the pH value of the Jiangxiang Baijiu production wastewater, and improve the quality of sewage treatment.

[0120] In some optional embodiments of the application, the water distribution pipeline system further comprises:

[0121] The sludge backflow pipe 11 is used for backflowing the sludge at the bottom of the sewage treatment tank body 26 into the sewage treatment tank body 26, and comprises a sludge inflow end and a sludge outflow end, the sludge outflow end, the water inflow end of the water inflow branch pipe 8 and the water outflow end of the water inflow main pipe 1 are connected to form a sixth connection.

[0122] In some optional embodiments of the application, the sludge backflow pipe 11 is connected to the top of the water inflow branch pipe 8, the sludge backflow amount is adjusted through the sludge backflow flow meter 12 and the sludge backflow pipe valve 13, the sludge and the water inflow are fully mixed through the water inflow branch pipe 8, the sludge concentration of the water inflow is improved, and the impact resistance and stability of the UASB reactor are enhanced, and the treatment capacity for the sewage to be treated with high concentration is also increased.

[0123] In some optional embodiments of the application, the sludge backflow pipe 11 is provided with the sludge backflow flow meter 12 and the sludge backflow pipe valve 13.

[0124] In some optional embodiments of the application, the water distribution pipeline system further comprises:

[0125] The emptying pipe 16 is a short pipe section of the water distribution annular pipe 9 connected and arranged in the length direction, and is used for discharging impurities outward, and the water distribution annular pipe 9 has two opposite short pipe sections in the width direction;

[0126] The slag blocking screen pocket 14 is arranged at the discharge port of the emptying pipe 16.

[0127] In some optional embodiments of the application, the slag blocking screen pocket 14 is made of stainless steel.

[0128] In some optional embodiments of the application, the slag blocking screen pocket 14 is made of 304 stainless steel.

[0129] In some optional embodiments of the application, the depth of the slag blocking screen pocket 14 is 30 cm to 40 cm.

[0130] The blow-off pipe and the water distribution pipe are full-welded, after being welded with the flange plate, the blow-off pipe valve is installed, when dredging, the dregs and the like pass through the blow-off pipe into the dreg blocking filter bag 14 for filtering, so that the dregs and the sewage are separated.

[0131] In some optional embodiments of the present application, the water inlet branch pipe 8 is arranged close to one of the two opposite short pipe sections, and the emptying pipe 16 is connected with the other of the two opposite short pipe sections.

[0132] In these embodiments, the sauce-flavor liquor production wastewater contains dregs, chaff and the like, although the pretreatment is performed in the previous section, according to the operation condition of the sewage treatment plant, the chaff and the like small sundries will still enter the water inlet main pipe 1 of the UASB through the adjusting tank, and the sundries and sludge will be accumulated in the pipe after long time operation, causing the water distribution pipe to be blocked, which will reduce the water inlet amount and cause the water distribution to be uneven, and further cause the upflow velocity of the UASB to be insufficient, the water treatment amount to be insufficient, and the sewage to be short-circuited in the UASB. The embodiment of the present application connects the emptying pipe 16 on the water distribution annular pipe 9, so that the sundries accumulated in the water distribution annular pipe 9 can be removed periodically, the long-term operation quality of the water distribution pipe system is ensured, and the uniformity and stability of the water distribution are ensured. The emptying pipe 16 is provided with the emptying pipe valve 15 for controlling whether the emptying pipe 16 is communicated with the dreg blocking filter bag 14 or not.

[0133] In some optional embodiments of the present application,

[0134] A plurality of water distribution branch pipes 10 are arranged at intervals along the first long pipe section and the second long pipe section,

[0135] The water distribution branch pipe 10 comprises an inverted L-shaped leading pipe section 101, a connecting transparent pipe section 21 and a vertical dredging pipe section 103, and the connecting transparent pipe section 21 and the vertical dredging pipe section 103 are both arranged perpendicularly to the water distribution annular pipe 9;

[0136] One end of the inverted L-shaped leading pipe section 101 is connected with the water distribution annular pipe 9, the other end of the inverted L-shaped leading pipe section 101 is connected with the vertical dredging pipe section 103 to form a seventh connection, and the inverted L-shaped leading pipe section 101 is provided with a first water distribution branch pipe control valve 1011;

[0137] In the liquid flow direction of the vertical dredging pipe section 103, the vertical dredging pipe section 103 is provided with a second water distribution branch pipe control valve 104 located before the seventh connection;

[0138] The connecting transparent pipe section 21 is connected with the outflow end of the vertical dredging pipe section 103, and the outflow end of the connecting transparent pipe section 21 is provided with a third water distribution branch pipe control valve 22. The third water distribution branch pipe control valve 22 is provided with a water distribution pipe flange 23 as a pipe connecting piece for connecting the water distribution branch pipe 10 with the water distribution pipe.

[0139] The valve in the water distribution pipe 10 is a two-piece stainless steel ball valve, which ensures that the pipe diameter is not affected by the ball valve. The size of the valve is determined according to the size of the water distribution pipe 10. The connecting hose 21 between the water distribution pipes 10 is made of transparent hose, which facilitates the observation of whether the water distribution pipe 10 is blocked and whether the flow is normal. The water distribution pipe 10 is subjected to long-term corrosion, sun exposure and rain, and the entire part is made of stainless steel.

[0140] In some optional embodiments of the present application, the connecting transparent pipe section 21 is a hose.

[0141] In some optional embodiments of the present application, the water distribution pipe 10 has an overall h-shaped structure.

[0142] In some optional embodiments of the present application, the connecting transparent pipe section 21 can facilitate the detection of whether the water distribution pipe 10 is blocked during actual processing, so that the water distribution pipe 10 and the distribution pipe 19 can be dredged in time through the vertical dredging pipe section 103, ensuring uniform water distribution and sewage treatment quality and efficiency.

[0143] In some optional embodiments of the present application, the water distribution pipe 10 is made of stainless steel material except for the connecting transparent pipe section 21.

[0144] In some optional embodiments of the present application, the water distribution pipe 10 is made of 304 stainless steel material except for the connecting transparent pipe section 21.

[0145] In some optional embodiments of the present application, it further comprises:

[0146] The distribution pipe 19 is connected to the plurality of water distribution pipes 10 one by one. One end of the distribution pipe 19 is connected to the second water distribution pipe control valve 104, and the other end of the distribution pipe 19 is arranged at the bottom of the sewage treatment tank body 26.

[0147] In some optional embodiments of the present application, the distribution pipe 19 is made of PE material.

[0148] In some embodiments of the present application, the vertical dredging pipe section 103 is provided with a water distribution pipe flushing port 24 at the top end of the vertical dredging pipe section 103, which is also the top end of the water distribution pipe 10. Through this port, the distribution pipe 19 is dredged by air or a device, ensuring uniform water inflow of the UASB reactor.

[0149] The above specific embodiments do not constitute a limitation on the scope of protection of the present application. Those skilled in the art should understand that various modifications, combinations, sub-combinations and substitutions can be made according to design requirements and other factors. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application shall be included in the scope of protection of the present application.

Claims

1. A water distribution pipe system of an upflow anaerobic sludge blanket reactor, characterized by, The application relates to a water distribution pipeline system of an upflow anaerobic treatment reactor. The water distribution pipeline system comprises: a water inlet main pipe arranged above a sewage treatment tank body of the upflow anaerobic treatment reactor and used for conveying sewage to be treated to the sewage treatment tank body; a water distribution annular pipe arranged above the sewage treatment tank body and below the water inlet main pipe; a water distribution sub-pipe group comprising a plurality of water distribution sub-pipes which are arranged on the water distribution annular pipe in a spaced manner, one end of each water distribution sub-pipe is connected with the water distribution annular pipe, and the other end of each water distribution sub-pipe is used for extending into the sewage treatment tank body; a water inlet branch pipe which has a Y-shaped three-way pipe structure, comprises one water inlet end and two water outlet ends, the water inlet branch pipe is arranged perpendicularly to a plane where the water distribution annular pipe is located, the water inlet end of the water inlet branch pipe is communicated with a water outlet end of the water inlet main pipe, one water outlet end of the water inlet branch pipe is connected with the water distribution annular pipe, and the other water outlet end of the water inlet branch pipe is connected with the water distribution annular pipe; 2. The water distribution pipe system of the upflow anaerobic reactor according to claim 1, wherein wherein the sewage to be treated flows from the water inlet main pipe, flows into the water distribution annular pipe from the two water outlet ends of the water inlet branch pipe through the water inlet branch pipe, and then flows into each water distribution sub-pipe of the water distribution sub-pipe group from the water distribution annular pipe, so that the sewage to be treated flows into the bottom of the sewage treatment tank body.

3. The water distribution pipe system of a UASB reactor according to claim 2, wherein, The water distribution annular pipe is in a circular rectangle shape and has a length direction and a width direction, the water distribution annular pipe has a first long pipe section and a second long pipe section which are arranged oppositely and extend in the length direction, one water outlet end of the water inlet branch pipe is connected with the first long pipe section, and the other water outlet end of the water inlet branch pipe is connected with the second long pipe section.

4. The water distribution pipe system of the upflow anaerobic reactor according to claim 3, wherein The water inlet main pipe is provided with a water inlet flow meter and two water inlet main pipe control valves, and the water inlet flow meter is arranged between the two water inlet main pipe control valves in the water inlet direction of the water inlet main pipe.

5. The water distribution pipe system of the upflow anaerobic reactor according to claim 4, wherein The water distribution pipeline system further comprises a water inlet standby pipeline which is arranged above the sewage treatment tank body of the upflow anaerobic treatment reactor, the water inlet standby pipeline is connected with the water inlet main pipe at a first connection position, and the first connection position is arranged after the two water inlet main pipe control valves in the water inlet direction of the water inlet main pipe.

6. The water distribution pipe system of the upflow anaerobic reactor according to claim 4, wherein The water inlet standby pipeline is provided with a water inlet standby pipeline control valve.

7. The water distribution pipe system of the upflow anaerobic reactor according to claim 4, wherein The water inlet main pipe is made of stainless steel material, and the stainless steel material comprises 304 stainless steel material.

8. The water distribution pipe system of the upflow anaerobic reactor according to claim 3, wherein The water distribution annular pipe is made of stainless steel material, and the stainless steel material comprises 304 stainless steel material. The water distribution pipeline system further comprises:

9. The water distribution pipe system of the upflow anaerobic reactor according to claim 8, wherein an overpass pipe (4) which is connected with the water inlet main pipe to form a second connection position, the overpass pipe is used for adjusting an overpass water amount to control the inflow amount of the sewage to be treated.

10. The water distribution pipe system of the upflow anaerobic reactor according to claim 8, wherein The pipe axis of the overpass pipe is parallel to the length direction, the overpass pipe is provided with an overpass pipe control valve.

11. The water distribution pipe system of the upflow anaerobic reactor according to claim 2, wherein The overpass pipe is made of stainless steel material, and the stainless steel material comprises 304 stainless steel material. The water inlet branch pipe has a converging main pipe section, a first branch bend pipe section and a second branch bend pipe section, the pipe axis of the converging main pipe section is perpendicular to the plane where the water distribution annular pipe is located, the first branch bend pipe and the second branch bend pipe are symmetrically arranged on the pipe axis of the converging main pipe section and have an overall inverted U shape, the water inlet end is located at the converging main pipe section, and the two water outlet ends are respectively located at the first branch bend pipe section and the second branch bend pipe section.

12. The water distribution pipe system of the upflow anaerobic reactor according to claim 11, wherein the water inlet branch pipe is located in a region 1 / 6L to 1 / 2L away from the first end of the water distribution ring pipe in the length direction, L being the length of the water distribution ring pipe in the length direction.

13. The water distribution pipe system of the upflow anaerobic reactor according to claim 12, wherein the water inlet branch pipe is located in a region 1 / 3L to 1 / 2L away from the first end of the water distribution ring pipe, further, the first branch elbow section and the first long pipe section are connected to form a third connection, the second branch elbow and the second long pipe section are connected to form a fourth connection, the first branch elbow section is provided with a first flow guide plate at the pipe end of the third connection, the second branch elbow section is provided with a second flow guide plate at the pipe end of the fourth connection, the first flow guide plate and the second flow guide plate are both curved arc plates provided spaced apart from the bottom of the water distribution ring pipe, the flow direction of the first flow guide plate is opposite to that of the second flow guide plate in the length direction to form a circular flow in the water distribution ring pipe.

14. The water distribution pipe system of the upflow anaerobic reactor according to claim 13, wherein the curved arc plate is provided spaced apart from the bottom of the water distribution ring pipe at a distance of 5cm to 10cm.

15. The water distribution pipe system of the upflow anaerobic reactor according to claim 11, wherein the water distribution pipe system further comprises: a medicament feeding pipe connected to the water collecting main pipe section to form a fifth connection, for feeding a medicament to adjust the pH value of the sewage to be treated in the sewage treatment tank.

16. The water distribution pipe system of the upflow anaerobic reactor according to claim 15, wherein the water distribution pipe system further comprises: a sludge backflow pipe for backflowing sludge at the bottom of the sewage treatment tank into the sewage treatment tank, the sludge backflow pipe comprising a sludge inflow end and a sludge outflow end, the sludge outflow end, the water inlet end of the water inlet branch pipe and the water outlet end of the water inlet main pipe are connected to form a sixth connection.

17. The water distribution pipe system of the upflow anaerobic reactor according to claim 16, wherein the sludge backflow pipe is provided with a sludge backflow flow meter and a sludge backflow pipe valve.

18. The water distribution pipe system of the upflow anaerobic reactor according to claim 11, wherein the water distribution pipe system further comprises: a vent pipe connected to a short pipe section of the water distribution ring pipe and extending along the length direction, for discharging impurities, the water distribution ring pipe has two opposite short pipe sections in the width direction; 19. The water distribution pipe system of the upflow anaerobic reactor according to claim 18, wherein the sludge backflow pipe is provided with a sludge backflow flow meter and a sludge backflow pipe valve.

20. The water distribution pipe system of the upflow anaerobic reactor according to claim 18, wherein the sludge backflow pipe is provided with a sludge backflow flow meter and a sludge backflow pipe valve.

16. The water distribution pipe system of the upflow anaerobic treatment reactor according to claim 2 or 11, wherein 21. The water distribution pipe system of the upflow anaerobic reactor according to claim 2, wherein a plurality of water distribution branch pipes are arranged along the first long pipe section and the second long pipe section, 22. The water distribution pipe system of the upflow anaerobic reactor according to claim 21, wherein the water distribution branch pipe comprises an inverted L-shaped leading pipe section, a connecting transparent pipe section and a vertical dredging pipe section, the connecting transparent pipe section and the vertical dredging pipe section are both perpendicular to the water distribution ring pipe.

17. The water distribution pipe system of the upflow anaerobic reactor according to claim 16, wherein ​ 18. The water distribution pipe system of the upflow anaerobic reactor according to claim 2, wherein ​ ​ ​ 19. The water distribution pipe system of the upflow anaerobic reactor according to claim 18, wherein ​ 20. The water distribution pipe system of the upflow anaerobic reactor according to claim 18, wherein ​ ​ ​ ​ One end of the inverted L-shaped outlet pipe section is connected with the water distribution ring-shaped pipe, the other end of the vertical dredging pipe section is connected with the vertical dredging pipe section to form a seventh connection, and a first water distribution branch pipe control valve is arranged on the inverted L-shaped outlet pipe section; In the liquid flow direction of the vertical dredging pipe section, a second water distribution branch pipe control valve is arranged on the vertical dredging pipe section before the seventh connection; The connecting transparent pipe section is connected with the outflow end of the vertical dredging pipe section, and the outflow end of the connecting transparent pipe section is provided with a third water distribution branch pipe control valve.

22. The water distribution pipe system of the upflow anaerobic treatment reactor according to claim 21, wherein The connecting transparent pipe section is a hose.

23. The water distribution pipe system of the upflow anaerobic treatment reactor according to claim 21, wherein The water distribution branch pipe has an overall h-shaped structure, and the pipe sections of the water distribution branch pipe, except the connecting transparent pipe section, are made of 304 stainless steel.

24. The water distribution pipe system of the upflow anaerobic treatment reactor according to claim 21, wherein The water distribution pipe system of the upflow anaerobic treatment reactor further comprises: A plurality of water distribution pipes are connected with the plurality of water distribution branch pipes one by one, one end of the water distribution pipe is connected with the second water distribution branch pipe control valve, and the other end of the water distribution pipe is arranged at the bottom of the sewage treatment tank.

25. The water distribution pipe system of the upflow anaerobic treatment reactor according to claim 24, wherein The water distribution pipe is made of PE material.

26. The water distribution pipe system of the upflow anaerobic treatment reactor according to claim 21, wherein A water distribution branch pipe flushing port is arranged at the top end of the vertical dredging pipe section.

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