CN210393873U

CN210393873U - Automatic dissolved oxygen control system for wastewater biochemical aerobic tank

Info

Publication number: CN210393873U
Application number: CN201920518486.6U
Authority: CN
Inventors: 唐强; 张立; 王洪建
Original assignee: Yancheng City Donggang Pharmaceutical Development Co ltd
Current assignee: Gansu Donggang Pharmaceutical Co.,Ltd.
Priority date: 2019-04-17
Filing date: 2019-04-17
Publication date: 2020-04-24
Anticipated expiration: 2029-04-17

Abstract

The utility model discloses a biochemical good oxygen pond dissolved oxygen automatic control system of waste water, including good oxygen pond main part, lid, dissolved oxygen appearance, PLC control panel, fan and rotary switch, the internally mounted of good oxygen pond main part has the filler support frame, and the left end of good oxygen pond main part installs the inlet port to the right-hand member of good oxygen pond main part is fixed with the access & exit, good oxygen pond main part is installed to the bottom of lid. This biochemical good oxygen pond dissolved oxygen automatic control system of waste water is provided with dissolved oxygen appearance, detect the inside oxygen content of good oxygen pond main part through dissolved oxygen appearance, dissolved oxygen appearance itself inside has high low limit warning output port, high newspaper all comprises the relay with low newspaper, through the content that dissolved oxygen appearance detected oxygen, give PLC control panel with this signal transmission when oxygen content is less than the minimum of injecing, opening of PLC control panel automatic control fan carries out the transport of oxygen, thereby do not need artifical manual regulation, artificial use has been reduced, practice thrift the cost of labor.

Description

Automatic dissolved oxygen control system for wastewater biochemical aerobic tank

Technical Field

The utility model relates to the technical field of chemical engineering, in particular to an automatic dissolved oxygen control system for a wastewater biochemical aerobic tank.

Background

Chemical engineering is generally known by means of chemicals and the like, the chemical engineering is applied to various fields, and is also applied to the existing sewage treatment process, the main treatment method of the sewage treatment in the market at present is a mode of first substance and then chemical substance, in the biochemical treatment stage, an aerobic tank provides oxygen required by a biochemical aerobic system through blasting air, most of workers adjust the dissolved oxygen amount of the biochemical aerobic tank by adjusting the size of an air blowing valve at present, manual control of the dissolved oxygen amount of the aerobic tank needs to be operated on site at a post, the labor intensity of the workers is high, and manpower resources are wasted, so that the automatic dissolved oxygen control system of the wastewater biochemical tank can be provided to well solve the problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a biochemical good oxygen pond dissolved oxygen automatic control system of waste water to solve traditional good oxygen pond on the existing market that above-mentioned background art provided and need the workman to mediate the young capacity that the good oxygen pond of biochemistry was adjusted to the pneumatic valve size at the post scene when adding oxygen, workman intensity of labour is big, the problem of extravagant manpower resources.

In order to achieve the above object, the utility model provides a following technical scheme: an automatic dissolved oxygen control system of a biochemical aerobic tank for wastewater comprises an aerobic tank main body, a cover body, an dissolved oxygen instrument, a PLC control panel, a fan and a knob switch, wherein a filler support frame is arranged inside the aerobic tank main body, an inlet is arranged at the left end of the aerobic tank main body, an inlet is fixed at the right end of the aerobic tank main body, an outlet is fixed at the right end of the aerobic tank main body, an aerobic tank main body is arranged at the bottom end of the cover body, a support rod penetrates through the inside of the left end of the cover body, the dissolved oxygen instrument is fixed above the cover body, the right side of the dissolved oxygen instrument is connected with the PLC control panel, the right end of the PLC control panel is connected with an AC contactor, the right side of the AC contactor is connected with the fan, an air suction hood is arranged at the right side of the fan, the bottom end of the fan penetrates through the cover body and, the bottom of knob switch is fixed with PLC control panel, the hydraulic stem is installed to the right side of good oxygen pond main part, and the top of hydraulic stem is fixed with the lid.

Preferably, the support rod is connected with the aerobic tank main body by welding, the support rod is connected with the cover body by nesting, and the highest point of the support rod is higher than that of the cover body.

Preferably, the right end of the air suction cover is open, the left end of the air suction cover is of a mesh structure, and the air suction cover is made of activated carbon.

Preferably, the bottom surface of the air storage cover is of a mesh structure, the length of the air storage cover is smaller than that of the aerobic pool main body, and one fourth of the length of the bottom surface of the air storage cover is equal to that of the opening at the bottom end of the air guide cover.

Preferably, the wind scooper is trapezoidal, the highest point of the wind scooper is lower than that of the wind storage cover, and the upper part and the lower part of the wind scooper are both open.

Preferably, the connection mode of the connection rope and the filler support frame is bolted connection, and the filler support frame and the aerobic tank main body form a lifting structure through the connection rope.

Compared with the prior art, the beneficial effects of the utility model are that: the automatic dissolved oxygen control system of the wastewater biochemical aerobic tank;

(1) the oxygen content in the aerobic tank main body is detected through the dissolved oxygen meter, a high-limit alarm output port and a low-limit alarm output port are arranged in the dissolved oxygen meter, the high-limit alarm and the low-limit alarm are both formed by relays, the dissolved oxygen meter is used for detecting the oxygen content, when the oxygen content is lower than a limited minimum value, a signal is transmitted to a PLC control panel, and the PLC control panel automatically controls a fan to be turned on to convey the oxygen, so that manual regulation is not needed, manual use is reduced, and labor cost is saved;

(2) the air storage cover and the air guide cover are arranged and integrated into a whole, the bottom surface of the air storage cover is of a mesh structure, the upper part and the lower part of the air guide cover are both in an open shape, oxygen is guided to the periphery inside the air storage cover through the air guide cover, the oxygen is prevented from directly flowing into the aerobic pool main body through the middle position of the air storage cover, and accordingly the oxygen can uniformly enter the aerobic pool main body.

Drawings

FIG. 1 is a schematic view of the overall main sectional structure of the present invention;

FIG. 2 is a schematic view of the main sectional structure of the air storage cover of the present invention;

FIG. 3 is a schematic view of the main sectional structure of the cover body of the present invention;

fig. 4 is an enlarged schematic structural view of a portion a in fig. 1 according to the present invention.

In the figure: 1. an aerobic tank main body; 2. a filler support frame; 3. an inlet port; 4. an entrance and an exit; 5. a hydraulic lever; 6. a cover body; 7. a support bar; 8. an oxygen dissolving instrument; 9. a PLC control panel; 10. an AC contactor; 11. a fan; 12. an air suction hood; 13. a wind storage cover; 14. a wind scooper; 15. connecting ropes; 16. a knob switch.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: an automatic control system for dissolved oxygen in a wastewater biochemical aerobic tank comprises an aerobic tank main body 1, a filler support frame 2, an inlet port 3, an inlet and outlet 4, a hydraulic rod 5, a cover body 6, a support rod 7, an dissolved oxygen instrument 8, a PLC (programmable logic controller) control panel 9, an AC contactor 10, a fan 11, an air suction cover 12, an air storage cover 13, an air guide cover 14, a connecting rope 15 and a knob switch 16, wherein the filler support frame 2 is installed inside the aerobic tank main body 1, the inlet port 3 is installed at the left end of the aerobic tank main body 1, the inlet and outlet 4 are fixed at the right end of the aerobic tank main body 1, the aerobic tank main body 1 is installed at the bottom end of the cover body 6, the support rod 7 penetrates through the left end of the cover body 6, the dissolved oxygen instrument 8 is fixed above the cover body 6, the right side of the dissolved oxygen instrument 8 is connected with the PLC control panel 9, the AC contactor 10, an air suction hood 12 is installed on the right side of the fan 11, the bottom end of the fan 11 penetrates through the cover body 6 to be connected with an air storage hood 13, an air guide hood 14 is installed inside the air storage hood 13, the upper portions of the left end and the right end of the filler support frame 2 are connected with the cover body 6 through connecting ropes 15, a PLC control panel 9 is fixed at the bottom end of a knob switch 16, a hydraulic rod 5 is installed on the right side of the aerobic tank main body 1, and the cover body 6 is fixed at the top end of the hydraulic rod 5;

the connecting mode of the support rod 7 and the aerobic tank main body 1 is welding, the connecting mode of the support rod 7 and the cover body 6 is nested connection, and the highest point of the support rod 7 is higher than that of the cover body 6, so that the support rod 7 can well support the cover body 6, and the cover body 6 can be well opened;

the right end of the air suction cover 12 is open, the left end of the air suction cover 12 is of a mesh structure, and the air suction cover 12 is made of activated carbon, so that the air suction cover 12 can well filter external oxygen and can be used well;

the bottom surface of the air storage cover 13 is of a mesh structure, the length of the air storage cover 13 is smaller than that of the aerobic tank main body 1, and one quarter of the length of the bottom surface of the air storage cover 13 is equal to that of the bottom opening of the air guide cover 14, so that the mesh structure of the bottom surface of the air storage cover 13 can well convey oxygen;

the air guiding cover 14 is trapezoidal, the highest point of the air guiding cover 14 is lower than the highest point of the air storage cover 13, the upper part and the lower part of the air guiding cover 14 are both in an opening shape, oxygen can conveniently flow to the left end and the right end of the inner part of the air storage cover 13 through the air guiding cover 14, and the oxygen can conveniently and uniformly enter the aerobic tank main body 1.

Connect rope 15 and filler support frame 2's connected mode for bolted connection, and filler support frame 2 constitutes elevation structure through connecting rope 15 and good oxygen pond main part 1 to drive filler support frame 2 when the lid 6 goes up and down and go up and down, make the fine use of packing in the 2 outsides of filler support frame.

The working principle is as follows: when the automatic control system for dissolved oxygen in the wastewater biochemical aerobic tank is used, firstly, as shown in figure 1, the aerobic tank body 1 is moved to a working area, then the aerobic tank main body 1 is installed with the working area, the inlet port 3 is connected with an external sewage discharge device after installation, the PLC control panel 9 is connected with an external 220V power supply, then sewage enters the aerobic tank main body 1 through the inlet port 3, then sewage treatment reaction is well carried out through the filler made of the fiber bundle material on the outer side of the filler support frame 2 in the aerobic tank main body 1, the activated sludge is subjected to aerobic respiration in the aerobic tank main body 1, organic matters are further decomposed into inorganic matters, pollutants in the wastewater are removed, in the process, the dissolved oxygen meter 8 always detects and monitors the oxygen content in the aerobic tank main body 1, and the dissolved oxygen meter 8 is provided with a high-limit alarm output port and a low-limit alarm output port;

when the dissolved oxygen meter 8 detects that the oxygen content in the aerobic pool main body 1 is lower than the lowest value limited in the dissolved oxygen meter 8, the dissolved oxygen meter 8 transmits the signal to the PLC control panel 9 through the high-low limit alarm output port of the dissolved oxygen meter, the PLC control panel 9 starts the fan 11 through the AC contactor 10, the fan 11 automatically works, the fan 11 well filters the outside oxygen through the suction hood 12 with the inside made of activated carbon and then transmits the outside oxygen to the air storage hood 13 in the cover body 6 through the fan 11, at this time, as shown in figure 2, the oxygen passes through the shielding of the air guide hood 14, one part of the oxygen enters the air guide hood 14 through the opening above the air guide hood 14, and the other part of the oxygen flows to the outside of the air guide hood 14 through the air guide hood 14, so that the oxygen in the air storage hood 13 is uniformly distributed in the air storage hood 13, and the oxygen is prevented from flowing into the aerobic pool main body 1 along the middle position of the air storage hood 13, therefore, oxygen is all contained around the inside of the air storage cover 13, then the oxygen flows into the aerobic tank main body 1 through the mesh at the bottom of the air storage cover 13, so that the oxygen uniformly enters the aerobic tank main body 1, the oxygen is prevented from being accumulated in the middle of the aerobic tank main body 1, the use efficiency of the oxygen is further improved, meanwhile, the oxygen dissolving instrument 8 and the PLC control panel 9 are matched with each other, the oxygen is automatically monitored and conveyed, the labor cost is reduced, meanwhile, the knob switch 16 is arranged above the PLC control panel 9, if an emergency occurs, the automatic mode can be switched to the manual mode by manually opening the knob switch 16, and the practicability of the whole device is improved;

when the cover body 6 needs to be opened, the hydraulic rod 5 is started, the hydraulic rod 5 drives the cover body 6 to ascend, meanwhile, the left end of the cover body 6 slides and rises on the outer side of the support rod 7, as shown in the attached figures 3-4, the cover body 6 pulls the connecting rope 15 in the rising process, thereby leading the connecting rope 15 to pull the filler support frame 2 to slide in the chute on the inner wall of the aerobic tank main body 1, leading the filler support frame 2 to well shake, the whole system is used, the circuit connection relation and the working principle among the dissolved oxygen meter 8, the PLC control panel 9, the AC contactor 10, the fan 11 and the knob switch 16 belong to the prior art which is disclosed in the market, the applicant hereby gives no detailed description in this specification, which is prior art to the expert in the field.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims

1. Biochemical good oxygen pond dissolved oxygen automatic control system of waste water, including good oxygen pond main part (1), lid (6), dissolved oxygen appearance (8), PLC control panel (9), fan (11) and rotary switch (16), its characterized in that: the aerobic tank is characterized in that a filler support frame (2) is installed inside the aerobic tank main body (1), an inlet (3) is installed at the left end of the aerobic tank main body (1), an inlet and an outlet (4) are fixed at the right end of the aerobic tank main body (1), the aerobic tank main body (1) is installed at the bottom end of the cover body (6), a support rod (7) penetrates through the left end of the cover body (6), an oxygen dissolving instrument (8) is fixed above the cover body (6), the right side of the oxygen dissolving instrument (8) is connected with a PLC (programmable logic controller) control panel (9), the right end of the PLC (9) is connected with an AC contactor (10), the right side of the AC contactor (10) is connected with a fan (11), an air suction hood (12) is installed on the right side of the fan (11), the bottom end of the fan (11) penetrates through the cover body (6) and is connected with an air storage hood (13), the left end and the right end of the filler support frame (2) are connected with the cover body (6) through connecting ropes (15), a PLC control panel (9) is fixed to the bottom end of the knob switch (16), a hydraulic rod (5) is installed on the right side of the aerobic pool main body (1), and the cover body (6) is fixed to the top end of the hydraulic rod (5).

2. The automatic control system for dissolved oxygen in a wastewater biochemical aerobic tank according to claim 1, is characterized in that: the connecting mode of the support rod (7) and the aerobic tank main body (1) is welding, the connecting mode of the support rod (7) and the cover body (6) is nested connection, and the highest point of the support rod (7) is higher than that of the cover body (6).

3. The automatic control system for dissolved oxygen in a wastewater biochemical aerobic tank according to claim 1, is characterized in that: the right end of the air suction cover (12) is in an open shape, the left end of the air suction cover (12) is in a mesh structure, and the air suction cover (12) is made of activated carbon.

4. The automatic control system for dissolved oxygen in a wastewater biochemical aerobic tank according to claim 1, is characterized in that: the bottom surface of the air storage cover (13) is of a mesh structure, the length of the air storage cover (13) is smaller than that of the aerobic pool main body (1), and one quarter of the length of the bottom surface of the air storage cover (13) is equal to that of an opening at the bottom end of the air guide cover (14).

5. The automatic control system for dissolved oxygen in a wastewater biochemical aerobic tank according to claim 1, is characterized in that: the wind guide cover (14) is trapezoidal, the highest point of the wind guide cover (14) is lower than that of the wind storage cover (13), and the upper part and the lower part of the wind guide cover (14) are both open.

6. The automatic control system for dissolved oxygen in a wastewater biochemical aerobic tank according to claim 1, is characterized in that: the connecting rope (15) is connected with the filler support frame (2) through bolts, and the filler support frame (2) and the aerobic tank main body (1) form a lifting structure through the connecting rope (15).