Water outlet device of anaerobic reactor

Abstract

The utility model discloses a water outlet device of an anaerobic reactor, which is used for being connected to a reactor tank body and comprises an overflow pipe, a water outlet pipe and an upper communicating pipe, one end of the overflow pipe is obliquely inserted into the reactor tank body downwards and extends below an operation liquid level, and the overflow pipe is provided with an access hole; one end of the water outlet pipe is communicated with the overflow pipe, and a water outlet lower opening is formed below the operation liquid level; one end of the upper communicating pipe is connected to the outer wall of the reactor tank body, and the other end of the upper communicating pipe is communicated with a preset part, extending out of the reactor tank body, of the overflow pipe; the upper communicating pipe is provided with an upper communicating port positioned above the operation liquid level of the reactor tank body, and an isolating valve is arranged between the upper communicating port and the overflow pipe. Scale on the water outlet pipe is cleaned through the access hole, the tank does not need to be cleaned or the liquid level in the tank does not need to be lowered, biogas in the tank does not overflow basically, the maintenance difficulty is lowered, and the device has the advantages that liquid in the tank does not need to be discharged during maintenance, pipe cleaning is free of dead angles, and maintenance is safe.

Description

[Technical field]

[0001] The utility model relates to the technical field of sewage treatment, in particular to a water outlet device for an anaerobic reactor. [Background technology]

[0002] In the process of leachate sewage treatment, anaerobic reactors are most commonly used to decompose organic matter and convert organic waste into biogas. During operation, the concentration of calcium and magnesium ions is too high, which is easy to cause scaling and cannot be avoided, causing water outlet blockage, directly affecting the treatment efficiency of the anaerobic reactor. During routine maintenance, the outlet of the conventional anaerobic reactor usually needs to release a large amount of reaction liquid, which is easy to cause a large amount of biogas overflow, thus affecting maintenance safety, and pipeline maintenance is also prone to dead corners.

[0003] In view of this, it is necessary to provide an anaerobic reactor water outlet device to overcome the above-mentioned defects. [Contents of the utility model]

[0004] The utility model aims to provide an anaerobic reactor water outlet device, aiming to improve the problem that the existing anaerobic reactor outlet is inconvenient for daily maintenance, which can avoid the large-scale release of reaction liquid, avoid the large-scale overflow of biogas affecting maintenance safety, avoid dead corners in pipeline maintenance, and ensure environmental protection and treatment efficiency.

[0005] In order to achieve the above-mentioned purpose, the utility model provides an anaerobic reactor water outlet device, which is used to be connected to the reactor tank, and includes an overflow pipe, a water outlet pipe and an upper connecting pipe;

[0006] One end of the overflow pipe is obliquely inserted downward into the reactor tank body and extends below the operating liquid level, and an inspection port is provided at one end of the overflow pipe away from the reactor tank body;

[0007] One end of the water outlet pipe is connected to a preset position of the overflow pipe extending out of the reactor tank body, and the water outlet at the end of the water outlet pipe away from the overflow pipe is arranged below the operating liquid level of the reactor tank body;

[0008] One end of the upper connecting pipe is connected to the outer wall of the reactor tank body, and the other end is connected to a preset position of the overflow pipe extending outside the reactor tank body; the upper connecting pipe is provided with an upper connecting port located above the operating liquid level of the reactor tank body, and a shut-off valve is provided between the upper connecting port and the overflow pipe.

[0009] In a preferred embodiment, the upper connecting pipe includes a horizontal branch connecting pipe and a vertical branch connecting pipe that are connected to each other; one end of the horizontal branch connecting pipe away from the vertical branch connecting pipe is fixed outside the reactor tank body, and one end of the vertical branch connecting pipe away from the horizontal branch connecting pipe is connected to the overflow pipe; the upper connecting port is opened on the horizontal branch connecting pipe, and the isolating valve is arranged on the vertical branch connecting pipe.

[0010] In a preferred embodiment, the water outlet pipe is arranged below the overflow pipe and is arranged downward in a vertical direction.

[0011] In a preferred embodiment, the central axis of the vertical branch connecting pipe and the central axis of the water outlet pipe are located on the same straight line.

[0012] In a preferred embodiment, the inspection opening is provided with a flange blind plate.

[0013] In a preferred embodiment, the end of the overflow pipe extending below the operating liquid level is a flat-end pipe opening, and the flat-end pipe opening is arranged horizontally.

[0014] In a preferred embodiment, the overflow pipe is inserted below the liquid level in the reactor tank at an angle of 45 degrees downward.

[0015] The anaerobic reactor water outlet device provided by the utility model keeps the isolation valve open during daily operation to ensure that there is no gas collection in the device and the pressure in the upper connecting pipe and the reactor tank is consistent, so that water can be discharged normally; when inspection and maintenance are required, the isolation valve can be closed and the inspection port can be opened, and the scale of the water outlet pipe can be cleaned through the inspection port, without the need to clean the tank or lower the liquid level in the tank, and the biogas in the tank will basically not overflow, reducing the difficulty of maintenance. It has the characteristics of not needing to discharge the liquid in the tank during maintenance, no dead angle for cleaning the pipe, and safe maintenance. Compared with the conventional anaerobic reactor outlet, the utility model can avoid the large-scale release of reaction liquid, avoid the large-scale overflow of biogas affecting maintenance safety, avoid dead angles in pipeline maintenance, and ensure environmental protection and treatment efficiency.

Brief Description of the Drawings

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 This is a schematic diagram of the water outlet device of the anaerobic reactor provided by the utility model.

[0018] Numbers in the figure: 100, anaerobic reactor outlet device; 200, reactor tank; 10, overflow pipe; 101, flat-mouth pipe outlet; 20, outlet pipe; 201, outlet lower port; 30, upper connecting pipe; 301, upper connecting port; 31, horizontal branch connecting pipe; 32, vertical branch connecting pipe; 33, isolation valve; 40, inspection port. [Specific implementation method]

[0019] In order to make the purpose, technical solution and beneficial technical effect of the utility model clearer, the utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods. It should be understood that the specific implementation methods described in this specification are only for explaining the utility model, and are not intended to limit the utility model.

[0020] It should also be understood that the terms used in this utility model specification are only for the purpose of describing specific embodiments and are not intended to limit the utility model. As used in this utility model specification and the appended claims, unless the context clearly indicates otherwise, the singular forms "a", "an" and "the" are intended to include plural forms.

[0021] It should be further understood that the term “and / or” used in the present specification and the appended claims refers to any combination and all possible combinations of one or more of the associated listed items, and includes these combinations.

[0022] In an embodiment of the utility model, an anaerobic reactor water outlet device 100 is provided, which is used to be connected to the reactor tank 200, that is, the device is applied to the design of the overflow water outlet part of the anaerobic reactor to facilitate maintenance.

[0023] like Figure 1 As shown, the anaerobic reactor water outlet device 100 includes an overflow pipe 10 , a water outlet pipe 20 and an upper connecting pipe 30 .

[0024] The overflow pipe 10 is a round pipe, one end of which is inserted obliquely downward into the reactor tank body 200 and extends below the operating liquid level. In this embodiment, the overflow pipe 10 is inserted into the reactor tank body 200 at an angle of 45 degrees downward.

[0025] Further, the end of the overflow pipe 10 extending below the operating liquid level is a flat-mouthed pipe opening 101. The flat-mouthed pipe opening 101 is arranged horizontally, that is, the flat-mouthed pipe opening 101 is parallel to the operating liquid surface.

[0026] Correspondingly, an inspection port 40 is provided at one end of the overflow pipe 10 away from the reactor tank 200. The inspection port 40 is provided with a flange blind plate. The flange blind plate is detachably connected to the inspection port 40. During daily operation, the flange blind plate closes the inspection port 40; when the outlet pipe 20 needs to be scaled and cleaned, the flange blind plate can be removed. Among them, the flange blind plate can be designed as an integral part, or it can be divided into a flange and a blind plate. All flanges adopt standard designed flanges, so that the inspection port 40 can be closed and opened.

[0027] One end of the water outlet pipe 20 is connected to a preset position of the overflow pipe 10 extending out of the reactor tank body 200, and the water outlet lower port 201 located at the end of the water outlet pipe 20 away from the overflow pipe 10 is arranged below the operating liquid level of the reactor tank body 200. Water from the upper part of the reactor tank body 200 flows out from the water outlet lower port 201 of the water outlet pipe 20 through the flat-mouthed pipe port in the tank.

[0028] In this embodiment, the outlet pipe 20 is a round pipe and is arranged below the overflow pipe 10 and vertically downward. It should be noted that the position of the connection between the overflow pipe 10 and the outlet pipe 20 can be flush with the operating liquid level in the reactor tank 200, and the lowest point can also be set below the operating liquid level.

[0029] In an embodiment of the present invention, one end of the upper connecting pipe 30 is connected to the outer wall of the reactor tank body 200, and the other end is connected to the preset position of the overflow pipe 10 extending outside the reactor tank body 200. Specifically, the upper connecting pipe 30 includes a horizontal branch connecting pipe 31 and a vertical branch connecting pipe 32 that are connected. One end of the horizontal branch connecting pipe 31 away from the vertical branch connecting pipe 32 is fixed outside the reactor tank body 200, and one end of the vertical branch connecting pipe 32 away from the horizontal branch connecting pipe 31 is connected to the overflow pipe 10. Further, the central axis of the vertical branch connecting pipe 32 is located on the same straight line as the central axis of the outlet pipe 20.

[0030] The upper connecting pipe 30 is provided with an upper connecting port 301 located above the operating liquid level of the reactor tank 200, and a cut-off valve 33 is provided between the upper connecting port 301 and the overflow pipe 10. The upper connecting port 301 is opened on the horizontal branch connecting pipe 31, and the cut-off valve 33 is provided on the vertical branch connecting pipe 32.

[0031] During normal operation, the isolation valve 33 is kept open and the inspection port 40 is kept closed to ensure that there is no gas accumulation in the device and the pressure above the device is consistent with that in the tank, ensuring normal water discharge. When the scaled outlet pipe 20 needs to be cleaned, the isolation valve 33 is closed and the device can be cleaned by removing the flange blind plate of the inspection port 40. There is no need to clean the tank or lower the liquid level in the tank, and the biogas in the tank will basically not overflow, reducing the difficulty of maintenance.

[0032] In summary, the anaerobic reactor water outlet device 100 provided by the utility model keeps the isolation valve 33 open during daily operation to ensure that there is no gas accumulation in the device and the pressure in the upper connecting pipe 30 and the reactor tank body 200 is consistent, so that water can be discharged normally; when inspection and maintenance are required, the isolation valve 33 can be closed and the inspection port 40 can be opened, and the scale of the outlet pipe 20 can be cleaned through the inspection port 40, without cleaning the tank or lowering the liquid level in the tank, and the biogas in the tank will basically not overflow, which reduces the difficulty of maintenance. It has the characteristics of not needing to discharge the liquid in the tank during maintenance, no dead angle for cleaning the pipe, and safe maintenance. Compared with the conventional anaerobic reactor outlet, the utility model can avoid the large-scale release of reaction liquid, avoid the large-scale overflow of biogas affecting maintenance safety, avoid dead angles in pipeline maintenance, and ensure environmental protection and processing efficiency.

[0033] The present invention is not limited to what is described in the specification and implementation modes, and therefore, additional advantages and modifications can be easily realized by those familiar with the art. Therefore, without departing from the spirit and scope of the general concept defined by the claims and their equivalents, the present invention is not limited to the specific details, representative devices, and illustrative examples shown and described herein.

Claims

1. An anaerobic reactor water outlet device, used to be connected to a reactor tank, characterized in that: It includes an overflow pipe, a water outlet pipe and an upper connecting pipe; One end of the overflow pipe is obliquely inserted downward into the reactor tank body and extends below the operating liquid level, and an inspection port is provided at one end of the overflow pipe away from the reactor tank body; One end of the water outlet pipe is connected to a preset position of the overflow pipe extending out of the reactor tank body, and the water outlet at the end of the water outlet pipe away from the overflow pipe is arranged below the operating liquid level of the reactor tank body; One end of the upper connecting pipe is connected to the outer wall of the reactor tank body, and the other end is connected to a preset position of the overflow pipe extending outside the reactor tank body; the upper connecting pipe is provided with an upper connecting port located above the operating liquid level of the reactor tank body, and a shut-off valve is provided between the upper connecting port and the overflow pipe.

2. The anaerobic reactor water outlet device according to claim 1, characterized in that: The upper connecting pipe includes a horizontal branch connecting pipe and a vertical branch connecting pipe that are connected to each other; one end of the horizontal branch connecting pipe away from the vertical branch connecting pipe is fixed outside the reactor tank body, and one end of the vertical branch connecting pipe away from the horizontal branch connecting pipe is connected to the overflow pipe; the upper connecting port is opened on the horizontal branch connecting pipe, and the isolation valve is arranged on the vertical branch connecting pipe.

3. The anaerobic reactor water outlet device according to claim 2, characterized in that: The water outlet pipe is arranged below the overflow pipe and is arranged downward in a vertical direction.

4. The anaerobic reactor water outlet device according to claim 3, characterized in that: The central axis of the vertical branch connecting pipe and the central axis of the water outlet pipe are located on the same straight line.

5. The anaerobic reactor water outlet device according to claim 1, characterized in that: The inspection opening is provided with a flange blind plate.

6. The anaerobic reactor water outlet device according to claim 1, characterized in that: The end of the overflow pipe extending below the operating liquid level is a flat-mouthed pipe opening, and the flat-mouthed pipe opening is arranged horizontally.

7. The anaerobic reactor water outlet device according to claim 1, characterized in that: The overflow pipe is inserted into the reactor tank below the liquid level at an angle of 45 degrees downward.

Images