CN220788259U - Water distribution device and anaerobic reactor - Google Patents

Abstract

The utility model relates to the technical field of sewage treatment, and provides a water distribution device and an anaerobic reactor. The water distribution device is applied to an anaerobic reactor, the anaerobic reactor comprises a reactor tank body, the water distribution device comprises a communication component, a plurality of water distribution pipes, a plurality of first valves and a plurality of second valves, and a sewage inlet is communicated with a plurality of communication ports through an inner cavity; the water distribution pipes penetrate through the reactor tank body, the end parts of the water distribution pipes are connected to the communication ports in a one-to-one correspondence manner, each water distribution pipe is provided with a plurality of sewage water outlets, the sewage water outlets are positioned in the reactor tank body, the free ends of the water distribution pipes are provided with outlets, and the outlets can be communicated with the outside of the reactor tank body; the second valves are connected with the free ends of the water distribution pipes in a one-to-one correspondence mode and are used for being opened in a state that the first valves are closed so as to drain mud through the free ends of the water distribution pipes. Solves the technical problems of low sewage treatment efficiency, large difficulty in arranging a sewage drain pipe and high cost in arranging the sewage drain pipe of the anaerobic reactor in the prior art.

Description

Water distribution device and anaerobic reactor

Technical Field

The utility model relates to the technical field of sewage treatment, in particular to a water distribution device and an anaerobic reactor.

Background

The anaerobic reactor is a reactor in sewage treatment and is widely applied to sewage treatment in the fields of papermaking, pharmaceutical production, chemical wastewater, food processing and the like.

The anaerobic reactor in the prior art comprises a reactor tank body and a water distribution device arranged in the reactor tank body, wherein the water distribution device can convey external sewage into the reactor tank body, the process is also called water distribution, in order to increase enough water distribution points, the water distribution device can generally comprise a plurality of water distribution main pipes and a plurality of water distribution branch pipes, a plurality of elbows, a plurality of tee joints and the like are also generally arranged for communicating the water distribution main pipes and the water distribution branch pipes, so that the resistance of a pipeline can be increased, scaling and blockage in the pipeline can be easily caused, the scaling and blockage in the pipeline can obstruct the sewage conveying, and on the basis of the water distribution device, the anaerobic reactor is generally required to be shut down every year for cleaning and replacing the pipeline after the shutdown, however, the shutdown can affect the sewage treatment efficiency; in addition, in order to ensure the normal operation of the anaerobic reactor, the bottom of the reactor tank needs to be periodically discharged, and a mud pipe is usually arranged at the bottom of the reactor tank and on the outer peripheral wall of the reactor tank in a penetrating manner, and for a large-diameter (for example, the diameter of the inside of the reactor tank is more than 12 meters), a plurality of mud pipes are generally required to be arranged in the reactor tank, however, due to the existence of a plurality of structures such as a plurality of main water distribution pipes and a plurality of branch water distribution pipes, the difficulty in arranging the mud pipes is high, and the cost is increased due to the arrangement of a plurality of mud pipes.

Disclosure of utility model

The utility model provides a water distribution device, which is applied to an anaerobic reactor, wherein the anaerobic reactor comprises a reactor tank body, and the water distribution device comprises: the communication component is provided with an inner cavity, a sewage inlet and a plurality of communication ports, and the sewage inlet is communicated with the plurality of communication ports through the inner cavity; the water distribution pipes penetrate through the reactor tank body, the end parts of the water distribution pipes are connected to the communication ports in a one-to-one correspondence manner, each water distribution pipe is provided with a plurality of sewage water outlets, the sewage water outlets are positioned in the reactor tank body, the free ends of the water distribution pipes are provided with outlets, and the outlets can be communicated with the outside of the reactor tank body; the first valves are connected with the water distribution pipes in a one-to-one correspondence manner and are used for controlling the sewage outlet to discharge sewage; and the second valves are connected with the free ends of the water distribution pipes in a one-to-one correspondence manner and are used for being opened in a state that the first valves are closed so as to drain mud through the free ends of the water distribution pipes.

According to one embodiment of the utility model, the water distribution device further comprises a plurality of tee joints and a plurality of third valves; each tee joint comprises a first port, a second port and a third port; the first port is communicated with the outlet; the second port can be communicated with the outside of the reactor tank body; the second valve is connected with the free end of the water distribution pipe through a second port and is used for being opened in a state that the first valve is closed so as to discharge mud through the second port; the third valve is connected with the third port and is used for being opened in a state that the first valve is closed, so that external clear water can sequentially enter the reactor tank body from the third port, the first port and the sewage outlet.

According to one embodiment of the utility model, the water distribution device further comprises a plurality of water pressure sensors which are connected with the water distribution pipes in a one-to-one correspondence manner.

According to one embodiment of the utility model, the first valve and the third valve are provided as electrically operated valves; the second valve is a manual valve; the water distribution device also comprises a controller, and the controller is electrically connected with each water pressure sensor, the first valve and the third valve; and when the water pressure sensor detects that the water pressure in the water distribution pipe is greater than a preset value, the controller is used for closing the first valve of the corresponding water distribution pipe, opening the third valve of the corresponding water distribution pipe and closing the second valve of the corresponding water distribution pipe.

According to one embodiment of the utility model, the controller is used for opening the first valve of the corresponding water distribution pipe and closing the third valve of the corresponding water distribution pipe and closing the second valve when the water pressure sensor detects that the water pressure in the water distribution pipe is smaller than or equal to a preset value.

According to one embodiment of the utility model, the water distribution device further comprises a first maintenance valve and a second maintenance valve; the first maintenance valve and the second maintenance valve are manual valves; the first overhaul valve is positioned between the sewage outlet and the first valve and is connected with a water distribution pipe; the second service valve is connected between the third port and the third valve.

According to one embodiment of the utility model, the water distribution device further comprises at least one pipeline bracket which is positioned in the reactor tank body, the water distribution pipe is connected with the bottom wall of the reactor tank body through the at least one pipeline bracket, and the pipeline bracket is used for supporting the water distribution pipe.

According to one embodiment of the utility model, the plurality of pipeline brackets are arranged at intervals along the extending direction of the water distribution pipe.

According to one embodiment of the utility model, the plurality of water distribution pipes horizontally penetrate through the outer peripheral wall of the reactor tank body, and the distance between the water distribution pipes and the bottom wall of the reactor tank body ranges from 150 mm to 350 mm.

The present utility model also provides an anaerobic reactor comprising: a reactor tank; the water distribution device of the embodiment is arranged in the reactor tank in a penetrating way.

The water distribution device and the anaerobic reactor have the characteristics and advantages that:

the communicating components are used for communicating the water distribution pipes, so that the structure of the water distribution system is simplified, the structures such as a plurality of water distribution main pipes, a plurality of elbows and a plurality of tee joints are not required to be arranged, the smoothness of sewage is ensured, the resistance of the pipeline is reduced, the scaling and the blockage in the pipeline are not easy to cause, the shutdown times of the anaerobic reactor can be reduced, and the sewage treatment efficiency is improved; in addition, the sludge discharge pipe does not need to be arranged separately, the outlet is arranged on the water distribution pipe, when sludge is required to be discharged, the first valve can be closed, the second valve can be opened, and due to the pressure in the reactor tank body, the sludge at the bottom of the reactor tank body can be discharged to the outside of the reactor tank body through the sewage outlet and the outlet of the water distribution pipe in sequence by utilizing the pressure difference between the inside of the reactor tank body and the outside of the reactor tank body, and a plurality of sludge discharge pipes do not need to be arranged, so that the technical problems of high difficulty and increased cost of sludge discharge pipe arrangement caused by the arrangement of the plurality of sludge discharge pipes do not exist; in addition, when the sludge is required to be discharged, only the first valve on one or a plurality of water distribution pipes is required to be closed, and other water distribution pipes can continue to distribute water without stopping the whole anaerobic reactor, so that the sewage treatment efficiency is further improved.

Drawings

In order to more clearly illustrate the utility model or the technical solutions of the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the utility model, and other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of the structure of an anaerobic reactor according to the present utility model.

FIG. 2 is a partial cross-sectional view of an anaerobic reactor according to the present utility model.

Reference numerals:

100. A reactor tank; 110. an internal circulation water outlet; 200. a water distribution device; 210. a communication member; 211. a sewage inlet; 212. a communication port; 220. a water distribution pipe; 221. a sewage outlet; 222. an outlet; 230. a first valve; 240. a second valve; 250. a tee joint; 260. a third valve; 270. a water pressure sensor; 280. a first service valve; 290. a second service valve; 291. a conduit bracket; 292. a flow meter; 293. and a circulation pump.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the present utility model more apparent, the technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some embodiments of the present utility model, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present embodiment, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present embodiment and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present embodiment.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present embodiment, the meaning of "plurality" is at least two, for example, two, three, etc., unless explicitly defined otherwise.

In this embodiment, unless explicitly stated or limited otherwise, the terms "disposed," "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present embodiment can be understood by those of ordinary skill in the art according to the specific circumstances.

In embodiments of the utility model, unless expressly specified and limited otherwise, a first feature "up" or "down" on a second feature may be that the first and second features are in direct contact, or that the first and second features are in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

Fig. 1 to 2 show a water distribution device 200 and an anaerobic reactor provided by the utility model, it can be seen that the water distribution device 200 of the utility model is applied to an anaerobic reactor, the anaerobic reactor comprises a reactor tank 100, the water distribution device 200 comprises a communication component 210, a plurality of water distribution pipes 220, a plurality of first valves 230 and a plurality of second valves 240, the communication component 210 is provided with an inner cavity, a sewage inlet 211 and a plurality of communication ports 212, and the sewage inlet 211 is communicated with the plurality of communication ports 212 through the inner cavity; the water distribution pipes 220 penetrate through the reactor tank body 100, the end parts of the water distribution pipes 220 are connected to the communication ports 212 in a one-to-one correspondence manner, each water distribution pipe 220 is provided with a plurality of sewage water outlets 221, the plurality of sewage water outlets 221 are positioned in the reactor tank body 100, the free ends of the water distribution pipes 220 are provided with outlets 222, and the outlets 222 can be communicated with the outside of the reactor tank body 100; a plurality of first valves 230, which are connected to the water distribution pipes 220 in a one-to-one correspondence manner, for controlling the sewage outlet 221 to discharge sewage; the second valves 240 are connected to the free ends of the water distribution pipes 220 in a one-to-one correspondence manner, and are used for opening in a state that the first valves 230 are closed so as to discharge sludge through the free ends of the water distribution pipes 220.

In the concrete implementation, the communicating component 210 is used for communicating each water distribution pipe 220, so that the structure of the water distribution system is simplified, the structures such as a plurality of main water distribution pipes, a plurality of elbows and a plurality of tee joints 250 are not required to be arranged, the smoothness of sewage is ensured, the resistance of the pipeline is reduced, scaling and blockage in the pipeline are not easy to cause, the shutdown times of the anaerobic reactor can be reduced, and the sewage treatment efficiency is improved; in addition, the utility model does not need to arrange a mud pipe separately, by arranging the outlet 222 on the water distribution pipe 220, when mud is required to be discharged, the first valve 230 can be closed, the second valve 240 can be opened, and because the pressure in the reactor tank body 100 is utilized, the mud at the bottom of the reactor tank body 100 can be discharged to the outside of the reactor tank body 100 through the sewage outlet 221 and the outlet 222 of the water distribution pipe 220 in sequence by utilizing the pressure difference between the inside of the reactor tank body 100 and the outside of the reactor tank body 100, and a plurality of mud pipes do not need to be arranged, so the technical problems of large difficulty and increased cost of the arrangement of the mud pipes caused by the need to arrange a plurality of mud pipes do not exist; in addition, when the sludge is required to be discharged, only the first valve 230 on one or a plurality of water distribution pipes 220 is required to be closed, and the other water distribution pipes 220 can continue to distribute water without stopping the whole anaerobic reactor, so that the sewage treatment efficiency is further improved.

In this embodiment, the reactor tank 100 may be existing, and the reactor tank 100 may be cylindrical and be provided with a hollow structure; the communicating member 210 may be in a horizontal state and be provided in a cylindrical structure with both ends closed, the plurality of water distribution pipes 220 may be uniformly spaced along the axial direction of the communicating member 210, the sewage inlet 211 and the plurality of communicating ports 212 may be both located at the outer peripheral wall of the communicating member 210, and the sewage inlet 211 may be located at the middle position of the communicating member 210; the sewage outlet 221 may be disposed toward the bottom wall of the reactor tank 100.

It will be appreciated that when it is not necessary to discharge sludge at the bottom of the reactor tank 100, the first valve 230 may be opened and the second valve 240 may be closed, so that the water distribution pipe 220 can normally deliver sewage into the reactor tank 100 through the sewage outlet 221, i.e., normal water distribution is achieved.

According to one embodiment of the present utility model, the water distribution device 200 further includes a plurality of tee joints 250 and a plurality of third valves 260; each tee 250 includes a first port, a second port, and a third port; the first port communicates with the outlet 222; the second port can communicate with the outside of the reactor tank 100; the second valve 240 is connected to the free end of the water distribution pipe 220 through a second port, and is opened in a state that the first valve 230 is closed, so as to discharge sludge through the second port; the third valve 260 is connected to the third port, and is opened in a state that the first valve 230 is closed, so that external fresh water can be sequentially introduced into the reactor tank 100 from the third port, the first port, and the sewage outlet 221.

In specific implementation, when sludge is required to be discharged, the first valve 230 can be closed, the second valve 240 can be opened, and due to the pressure in the reactor tank 100, the sludge at the bottom of the reactor tank 100 can be sequentially discharged to the outside of the reactor tank 100 through the sewage outlet 221, the outlet 222, the first port and the second port of the water distribution pipe 220 by utilizing the pressure difference between the inside of the reactor tank 100 and the outside of the reactor tank 100, wherein when sludge is required to be discharged, the third valve 260 can be opened or closed; when the sludge discharge is not required, that is, in a normal state, the first valve 230 is in an open state, and the second and third valves 240 and 260 are in a closed state; when the water distribution pipe 220 needs to be backwashed, the first valve 230 and the second valve 240 can be closed, the third valve 260 can be opened, so that external clear water can enter the reactor tank 100 from the third port, the first port and the sewage outlet 221 in sequence, in a specific application, the third port, the third valve 260 and the tap water pipeline are sequentially communicated, that is, tap water (external clear water) of the tap water pipeline enters the reactor tank 100 from the third port, the first port and the sewage outlet 221 after the third valve 260 is opened, and the backwashed of the water distribution pipe 220 can be realized by tap water, wherein when the backwashed is performed, the water pressure of the external clear water needs to be ensured to be larger than the water pressure in the reactor tank 100.

According to one embodiment of the present utility model, the water distribution device 200 further includes a plurality of water pressure sensors 270, which are connected to each water distribution pipe 220 in a one-to-one correspondence.

In a specific implementation, since the water pressure sensor 270 can detect the sewage pressure in each water distribution pipe 220, the pressure of the water pressure sensor 270 on each water distribution pipe 220 can be compared to determine which water distribution pipe 220 is blocked, for example, if the water pressure of one or more water distribution pipes 220 is found to be higher than the water pressure of other water distribution pipes 220, it is indicated that the one or more water distribution pipes 220 are blocked, so that people can perform backwash on the one or more water distribution pipes 220 in a targeted manner.

According to one embodiment of the present utility model, the first valve 230 and the third valve 260 are provided as electrically operated valves; the second valve 240 is a manual valve; the water distribution device 200 further comprises a controller, and the controller is electrically connected with each water pressure sensor 270, the first valve 230 and the third valve 260; wherein, when the water pressure sensor 270 detects that the water pressure in the water distribution pipe 220 is greater than the preset value, the controller is configured to close the first valve 230 of the corresponding water distribution pipe 220 and open the third valve 260 of the corresponding water distribution pipe 220, and close the second valve 240 of the corresponding water distribution pipe 220.

In specific implementation, when the water pressure sensor 270 detects that the water pressure in the water distribution pipe 220 is greater than the preset value, that is, when the water distribution pipe 220 is blocked, the controller can close the first valve 230 and open the third valve 260, and one can manually close the second valve 240, and after the third valve 260 is opened, tap water (external clean water) of a tap water pipeline can enter the reactor tank 100 through the third port, the first port and the sewage outlet 221, and back flushing of the water distribution pipe 220 can be realized by tap water.

According to an embodiment of the present utility model, in a state that the water pressure sensor 270 detects that the water pressure in the water distribution pipe 220 is less than or equal to a preset value, the controller is configured to open the first valve 230 of the corresponding water distribution pipe 220 and close the third valve 260 of the corresponding water distribution pipe 220, and close the second valve 240.

In particular, in a state where the water pressure sensor 270 detects that the water pressure in the water distribution pipe 220 is less than or equal to a preset value, that is, in a normal state (neither sludge discharge nor back flushing is required), the controller may open the first valve 230 and close the third valve 260, and one may manually close the second valve 240.

According to one embodiment of the present utility model, the water distribution device 200 further includes a first service valve 280 and a second service valve 290; the first service valve 280 and the second service valve 290 are manual valves; the first maintenance valve 280 is positioned between the sewage outlet 221 and the first valve 230 and is connected with the water distribution pipe 220; a second service valve 290 is connected between the third port and the third valve 260.

In specific implementation, when the first valve 230 needs to be overhauled, the first overhauling valve 280 can be closed to prevent water in the reactor tank 100 from flowing out under the action of pressure difference, so that the first valve 230 is convenient to overhaul; when the second valve 240 needs to be overhauled, the third valve 260 can be closed to prevent water in the reactor tank 100 from flowing out under the action of pressure difference, so that the second valve 240 is convenient to overhaul.

According to one embodiment of the present utility model, the water distribution device 200 may further include at least one pipe bracket 291 located in the reactor tank 100, and the water distribution pipe 220 is connected to the bottom wall of the reactor tank 100 through the at least one pipe bracket 291, and the pipe bracket 291 is used for supporting the water distribution pipe 220.

In particular, the tube bracket 291 can serve to support the water distribution tube 220 and prevent the water distribution tube 220 from being bent downward to some extent.

In this embodiment, the number of the pipe holders 291 is plural, and the plural pipe holders 291 are arranged at intervals along the extending direction of the water distribution pipe 220.

According to one embodiment of the present utility model, the plurality of water distribution pipes 220 penetrate the outer circumferential wall of the reactor tank 100 in a horizontal state, and the distance between the water distribution pipes 220 and the bottom wall of the reactor tank 100 ranges from 150 mm to 350 mm.

According to one embodiment of the utility model, the reactor tank 100 has an internal circulation water outlet 110; the inner circulation water outlet 110 is communicated with the sewage inlet 211, for example, the inner circulation water outlet 110 can be communicated with the sewage inlet 211 through a pipeline; the water distribution device 200 can also comprise a flowmeter 292 and a circulating pump 293; a flow meter 292 and a circulation pump 293 are provided in sequence between the inner circulation water outlet 110 and the sewage inlet 211, for example, the flow meter 292 and the circulation pump 293 may be provided in sequence on the above-mentioned piping between the inner circulation water outlet 110 and the sewage inlet 211.

In particular, under the action of the circulation pump 293, sewage enters the sewage inlet 211 of the communication component 210 through the internal circulation water outlet 110 after being internally circulated in the reactor tank 100, and the flow meter 292 can detect the flow rate of the water after being internally circulated.

The utility model also provides an anaerobic reactor, which comprises a reactor tank body 100 and the water distribution device 200 in the embodiment, wherein the water distribution device 200 is arranged in the reactor tank body 100 in a penetrating way. The specific structure, working principle and beneficial effects of the water distribution device 200 are the same as those of the above embodiment, and are not described here again.

The utility model has simple structure, convenient maintenance, multiple purposes by one pipe, and the water distribution pipe 220 can be used as a drain pipe, and is suitable for the large-diameter reactor tank body 100; meanwhile, on the aspect of treatment of high-concentration and easily-scaled wastewater, the pipeline blockage condition can be judged, the on-line back flushing of the single water distribution pipe 220 is realized, and the high-efficiency and stable operation of an anaerobic system (anaerobic reactor) can be ensured.

In a specific application, reference may be made to the following points:

1. Determining the size and shape selection of the anaerobic reactor: since the diameter of the monomer anaerobic reactor is generally smaller than 17 meters at present, the development scheme is to break through the diameter limitation, and an anaerobic reactor with the diameter larger than 18 meters is preferably selected as a reference when the diameter is determined.

2. The design water distribution pipe 220, anaerobic reactor size and associated set-up options are calculated based on parameters associated with a more difficult medium to process (e.g., landfill leachate and pharmaceutical wastewater).

The calculation parameters of the scheme are as follows:

(1) Design medium: pharmaceutical wastewater.

(2) Design parameters: the total water quantity is 500-600 cubic meters per day, the chemical oxygen demand of the inlet water is more than 20000 mg/L, the biochemical oxygen demand of the inlet water is more than 7000 mg/L, the total dissolved solid matter of the dissolved total solid is more than 13000 mg/L, the calcium ion is more than 500 mg/L, and the magnesium ion is more than 150 mg/L.

3. And according to the calculation result, a construction drawing is obtained.

4. Description of the device:

(1) Water distribution pipe 220: the water distribution pipe 220 is an important component part of the anaerobic reactor, the uniformity of water distribution and the smoothness of pipelines ensure the normal operation of the anaerobic reactor, the water distribution pipe 220 can be arranged by adopting a single pipeline, and the pipeline loss of each branch pipe can be nearly consistent by traversing from one side of the reactor tank body 100 to the other side of the reactor tank body 100, so as to ensure that the distribution of water distribution points in the reactor tank body 100 is uniform, reduce the pipeline pressure loss, ensure that the pipeline adopts an elbow in the reactor tank body 100 to be arranged to the tank wall of the pipeline-free part at two sides, open holes are formed at the bottom of the pipeline, and the whole layout of the pipeline in the tank can adopt a symmetrical form.

(2) Communication member 210 (or water distribution cartridge): is a part of the water distribution system, and is mainly used for evenly distributing the external wastewater and the circulating wastewater in the reactor to each water distribution pipe 220 after converging.

(3) Flow meter 292 (or recycle flow meter 292): and observing the flow rate of waste water when the circulating pump 293 operates, and adjusting the operating frequency of the circulating pump 293.

(4) Circulation pump 293: the power is provided for the internal circulation of the anaerobic reactor, the upward flow rate in the reactor tank body 100 is improved, and the circulating wastewater is led to a water distribution system.

(5) Water pressure sensor 270 (or pressure sensor): the pressure value of each water distribution pipe 220220 is monitored on line, and the change condition of the pressure value is monitored.

(6) Backwash port (or backwash port): after the water distribution pipe 220 is blocked, the high-pressure cleaning water pipeline is connected, so that automatic online back flushing can be realized.

(7) A tail end mud discharging port: because the pipe diameter of the water distribution pipe 220 is larger than the diameter of the water distribution point opening, the sludge discharge is opened periodically during operation, so that larger particles in the water distribution pipe 220 can be discharged, smooth operation is ensured, the occurrence of blockage in the pipeline is reduced, meanwhile, the water distribution pipe 220 can be multipurpose, the sludge discharge pipe can be considered, the sludge discharge in the tank is more uniform, and the reactor can be operated more stably.

(8) Pipeline bracket 291: support is provided for the water distribution pipe 220, and the water distribution pipe 220 is prevented from being bent downwards.

In summary, the utility model has the following key points:

1. the pipeline blockage situation can be judged according to the circulation flow and pressure change situation, and the online back flushing of the single water distribution pipe 220 can be realized.

2. The water distribution pipe 220 can be used as a drain pipe, and is more suitable for a large-diameter anaerobic reactor compared with the current single-pipe sludge discharge mode.

3. The applicability is stronger, and is particularly suitable for high-concentration and difficult-to-treat mediums such as pharmaceutical wastewater, landfill leachate and the like.

4. The design and the operation are flexible, the water distribution form can design proper water distribution outlet flow rate according to the medium, for example, the low suspended matters can reduce the sewage outlet 221 flow rate, and the high suspended matters can improve the water distribution outlet flow rate.

In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "manner," "particular modes," or "some modes," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or mode is included in at least one embodiment or mode of the embodiments of the present utility model. In this specification, the schematic representations of the above terms are not necessarily directed to the same embodiment or manner. Furthermore, the particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or ways. Furthermore, various embodiments or modes and features of various embodiments or modes described in this specification can be combined and combined by those skilled in the art without mutual conflict.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model.

Claims (10)

1. A water distribution device for use in an anaerobic reactor comprising a reactor tank (100), characterized in that the water distribution device comprises:

A communication member (210) having an inner cavity, a sewage inlet (211), and a plurality of communication ports (212), the sewage inlet (211) communicating with the plurality of communication ports (212) through the inner cavity;

The water distribution pipes (220) are arranged in the reactor tank body (100) in a penetrating mode, the end portions of the water distribution pipes (220) are connected to the communication ports (212) in a one-to-one correspondence mode, each water distribution pipe (220) is provided with a plurality of sewage water outlets (221), the sewage water outlets (221) are located in the reactor tank body (100), the free end of each water distribution pipe (220) is provided with an outlet (222), and the outlet (222) can be communicated with the outside of the reactor tank body (100);

A plurality of first valves (230) connected to the water distribution pipes (220) in a one-to-one correspondence manner, for controlling the sewage outlet (221) to discharge sewage;

And the second valves (240) are connected with the free ends of the water distribution pipes (220) in a one-to-one correspondence manner and are used for being opened in a state that the first valves (230) are closed so as to discharge sludge through the free ends of the water distribution pipes (220).

2. The water distribution device according to claim 1, wherein,

The water distribution device also comprises a plurality of tee joints (250) and a plurality of third valves (260);

each tee (250) includes a first port, a second port, and a third port;

the first port communicates with the outlet (222);

The second port can be communicated with the outside of the reactor tank (100);

The second valve (240) is connected with the free end of the water distribution pipe (220) through the second port and is used for being opened in a state that the first valve (230) is closed so as to discharge mud through the second port;

The third valve (260) is connected with the third port and is used for being opened in a state that the first valve (230) is closed, so that external clean water can enter the reactor tank body (100) from the third port, the first port and the sewage outlet (221) in sequence.

3. The water distribution device according to claim 2, further comprising a plurality of water pressure sensors (270) connected to each of the water distribution pipes (220) in a one-to-one correspondence.

4. A water distribution device according to claim 3, wherein,

The first valve (230) and the third valve (260) are provided as electrically operated valves;

the second valve (240) is a manual valve;

The water distribution device further comprises a controller, wherein the controller is electrically connected with each water pressure sensor (270), the first valve (230) and the third valve (260); wherein,

When the water pressure sensor (270) detects that the water pressure in the water distribution pipe (220) is greater than a preset value, the controller is used for closing a first valve (230) of the corresponding water distribution pipe (220) and opening a third valve (260) of the corresponding water distribution pipe (220), and closing a second valve (240) of the corresponding water distribution pipe (220).

5. The water distribution device according to claim 4, wherein the controller is configured to open the first valve (230) of the corresponding water distribution pipe (220) and close the third valve (260) of the corresponding water distribution pipe (220) and close the second valve (240) in a state that the water pressure sensor (270) detects that the water pressure in the water distribution pipe (220) is less than or equal to the preset value.

6. The water distribution device according to claim 4, wherein,

The water distribution device also comprises a first overhaul valve (280) and a second overhaul valve (290);

The first service valve (280) and the second service valve (290) are manual valves;

The first maintenance valve (280) is positioned between the sewage outlet (221) and the first valve (230) and is connected with the water distribution pipe (220);

the second service valve (290) is connected between the third port and the third valve (260).

7. The water distribution device according to any one of claims 1 to 6, further comprising at least one conduit bracket (291) located within the reactor tank (100), the water distribution pipe (220) being connected to the bottom wall of the reactor tank (100) by means of at least one conduit bracket (291), the conduit bracket (291) being adapted to support the water distribution pipe (220).

8. The water distribution device according to claim 7, wherein the plurality of pipe brackets (291) are provided, and the plurality of pipe brackets (291) are arranged at intervals along the extending direction of the water distribution pipe (220).

9. The water distribution device according to any one of claims 1 to 6, wherein a plurality of the water distribution pipes (220) penetrate through the outer peripheral wall of the reactor tank (100) in a horizontal state, and the distance between the water distribution pipes (220) and the bottom wall of the reactor tank (100) is in the range of 150 mm to 350 mm.

10. An anaerobic reactor, comprising:

A reactor tank (100);

the water distribution device according to any one of claims 1 to 9, being arranged inside the reactor tank (100).