CN216662629U

CN216662629U - Accurate dosing system in high-efficient type carbon source

Info

Publication number: CN216662629U
Application number: CN202123444920.7U
Authority: CN
Inventors: 扶志远; 关锐
Original assignee: Zhongqi Water Technology Shenzhen Co ltd
Current assignee: Guangdong Huaqing Double Carbon Environmental Technology Co ltd; Zhongqi Water Technology Shenzhen Co ltd
Priority date: 2021-12-28
Filing date: 2021-12-28
Publication date: 2022-06-03
Anticipated expiration: 2031-12-28

Abstract

The utility model provides an efficient carbon source accurate feeding system which comprises a selection tank, a biochemical tank, a carbon source feeding pipeline, a dissolved oxygen meter DO, an oxidation reduction potentiometer ORP, a carbon source storage tank, a carbon source feeding pump and a control system, wherein the selection tank is provided with a water inlet and a carbon source feeding port, the selection tank is connected with the biochemical tank, and the dissolved oxygen meter DO and the oxidation reduction potentiometer ORP are arranged in the biochemical tank; according to the efficient carbon source accurate feeding system, signals detected by detection probes of a dissolved oxygen meter DO and an oxidation reduction potentiometer ORP are transmitted to the control system in real time, and the control system controls the work of the carbon source feeding pump by taking numerical values obtained by conversion of preset programs as parameters according to the detection signals of the dissolved oxygen meter DO and the oxidation reduction potentiometer ORP. Meanwhile, the control parameters are displayed on an operation picture of the control system, and the parameters can be modified by an operator, so that the accurate feeding control is realized to meet the requirements of various working conditions of sewage treatment.

Description

Accurate dosing system in high-efficient type carbon source

Technical Field

The utility model belongs to the field of sewage treatment, and particularly discloses an efficient carbon source accurate adding system.

Background

Along with the development of cities, environmental problems are becoming more serious, the normal operation of sewage treatment facilities is closely related to the production and operation of various fields and the daily life of common people in the society, and municipal sewage treatment facilities are one of the most important municipal works in various cities. In southern areas of China, the municipal sewage has low organic matter content, the COD of inlet water is generally less than 100mg/L or even less than 70mg/L in rainy seasons, the biodegradability of the sewage is poor, and a certain carbon source needs to be added to meet the growth requirement of microorganisms. Particularly, in the anoxic denitrification process, a certain carbon source is required to be added for the denitrification process.

However, most sewage plants use the carbon source adding method by measuring the COD concentration of the inlet water, and manually adding according to experience or automatically adding through an automatic control system and an online COD meter. The methods have very strict requirements on COD detection precision, and meanwhile, the COD detection has certain hysteresis, and the carbon source adding amount is fed back to the COD, so that the continuous adding amount of the carbon source, the utilization rate is low, the waste is serious, the operation cost is high for a long time, and the accurate adding according to the requirements is difficult to achieve.

Therefore, an efficient carbon source accurate dosing system is provided.

SUMMERY OF THE UTILITY MODEL

In view of the defects or shortcomings in the prior art, the application aims to provide an efficient carbon source accurate adding system which comprises a selection tank, a biochemical tank, a carbon source adding pipeline, a dissolved oxygen meter DO, an oxidation-reduction potentiometer ORP, a carbon source storage tank, a carbon source adding pump and a control system, wherein the selection tank is provided with a water inlet and a carbon source adding port, the selection tank is connected with the biochemical tank, the dissolved oxygen meter DO and the oxidation-reduction potentiometer ORP are arranged in the biochemical tank, the dissolved oxygen meter DO and the oxidation-reduction potentiometer ORP transmit detected data to the control system in real time through conducting wires, and the control system is connected with the carbon source adding pump through a power line.

Preferably, a control system is arranged outside the biochemical pool, the control system receives signals detected by the dissolved oxygen meter DO and the oxidation reduction potentiometer ORP in real time, and the converted numerical value is used as a control parameter to control the work of the carbon source feeding pump.

Preferably, the control system comprises a programmable controller, the programmable controller is electrically connected with the dissolved oxygen meter DO and the oxidation reduction potentiometer ORP, and one end of the control system is electrically connected with the carbon source feeding pump through a wire.

Preferably, the carbon source feeding pump is speed-adjustable and variable-frequency, and receives an instruction sent by the control system to adjust the working frequency and the working rotating speed at any time.

Preferably, the selection tank and the biochemical tank are made of concrete structures or steel structures.

Preferably, the detection ends of the dissolved oxygen meter DO and the oxidation-reduction potentiometer ORP extend to the interior of the biochemical pool and are arranged near the water outlet.

Preferably, the carbon source storage tank is provided with a liquid level controller, the liquid level controller comprises a liquid level meter and a battery valve, the liquid level meter is located in the carbon source storage tank, the liquid level height is monitored, and the liquid level controller is connected with the control system.

Has the advantages that: the efficient carbon source accurate feeding system is provided with a dissolved oxygen meter DO, an oxidation reduction potentiometer ORP, a control system and a carbon source feeding pump. When the device works, signals detected by detection probes of the dissolved oxygen meter DO and the oxidation reduction potentiometer ORP are transmitted to the control system in real time, and the control system controls the carbon source feeding pump to work by taking a numerical value obtained by conversion of a preset program as a parameter according to the detection signals of the dissolved oxygen meter DO and the oxidation reduction potentiometer ORP. Meanwhile, the control parameters are displayed on an operation picture of the control system, and the parameters can be modified by an operator, so that the accurate feeding control is realized to meet the requirements of various working conditions of sewage treatment.

Drawings

Other features, objects and advantages of the present application will become more apparent upon reading of the following detailed description of non-limiting embodiments thereof, made with reference to the accompanying drawings in which:

FIG. 1 is a schematic view of an efficient carbon source precise dosing system according to the present invention;

illustration of the drawings: 1-a selection tank, 2-a biochemical tank, 3-a carbon source feeding pipeline, 4-a dissolved oxygen meter DO, 5-an oxidation reduction potentiometer ORP, 6-a carbon source storage tank, 7-a carbon source feeding pump and 8-a control system.

Detailed Description

The present application will be described in further detail with reference to the following drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant invention and not restrictive of the utility model. It should be noted that, for convenience of description, only the portions related to the present invention are shown in the drawings.

The drawings in the embodiments of the utility model: the different types of hatching in the figures are not given the national standards, do not require the material of the elements, and distinguish between cross-sectional views of the elements in the figures.

Referring to fig. 1, the efficient carbon source accurate feeding system comprises a selection tank 1, a biochemical tank 2, a carbon source feeding pipeline 3, a dissolved oxygen meter DO4, an oxidation reduction potentiometer ORP 5, a carbon source storage tank 6, a carbon source feeding pump 7 and a control system 8, wherein the selection tank 1 is provided with a water inlet and a carbon source feeding port, the selection tank 1 is connected with the biochemical tank 2, the dissolved oxygen meter DO4 and the oxidation reduction potentiometer ORP 5 are arranged in the biochemical tank 1, the dissolved oxygen meter DO4 and the oxidation reduction potentiometer ORP 5 transmit detected data to the control system 8 through conducting wires in real time, and the control system 8 is connected with the carbon source feeding pump 7 through a power line.

The control system 8 is arranged outside the biochemical pool 2, signals detected by the dissolved oxygen meter DO4 and the oxidation reduction potentiometer ORP 5 received by the control system 8 in real time are converted into numerical values serving as control parameters to control the work of the carbon source feeding pump 7, and accurate feeding control of the carbon source is realized, so that the purpose of efficient quantitative feeding is achieved.

The control system 8 comprises a programmable controller, the programmable controller is electrically connected with a dissolved oxygen meter DO4 and an oxidation reduction potentiometer ORP 5, and one end of the control system 8 is electrically connected with a carbon source feeding pump 7 through a wire.

The carbon source feeding pump 7 is speed-adjustable and variable-frequency, and receives an instruction sent by the control system 8 to adjust the working frequency and the working rotating speed at any time.

Wherein, the selection tank 1 and the biochemical tank 2 can be made of concrete structures or steel structures.

Wherein the detection ends of the dissolved oxygen meter DO4 and the oxidation-reduction potentiometer ORP 5 extend into the biochemical pool 2 and are arranged near the water outlet.

Wherein, carbon source storage tank 6 is equipped with liquid level controller, liquid level controller includes level gauge, battery valve, the level gauge is located carbon source storage tank 6, monitors the liquid level height. The liquid level controller is connected with a control system 8.

The efficient carbon source accurate feeding system is provided with a dissolved oxygen meter DO4, an oxidation reduction potentiometer ORP 5, a control system 8 and a carbon source feeding pump 7. When the system works, signals detected by detection probes of the dissolved oxygen meter DO4 and the oxidation reduction potentiometer ORP 5 are transmitted to the control system 8 in real time, and the control system 8 controls the work of the carbon source feeding pump 7 by taking numerical values obtained by conversion of preset programs as parameters according to the detection signals of the dissolved oxygen meter DO 5 and the oxidation reduction potentiometer ORP 5. Meanwhile, the control parameters are displayed on an operation picture of the control system, and the parameters can be modified by an operator, so that the accurate feeding control is realized to meet the requirements of various working conditions of sewage treatment.

The control circuits of the dissolved oxygen meter DO4, the oxidation-reduction potentiometer ORP 5 and the control system 8 can be realized through simple programming by a person skilled in the art, belong to the common knowledge in the field, and are only used without modification, so the detailed description of the control mode and the circuit connection is omitted.

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.

The above description is only a preferred embodiment of the application and is illustrative of the principles of the technology employed. It will be appreciated by a person skilled in the art that the scope of the utility model as referred to in the present application is not limited to the embodiments with a specific combination of the above-mentioned features, but also covers other embodiments with any combination of the above-mentioned features or their equivalents without departing from the inventive concept. For example, the above features may be replaced with (but not limited to) features having similar functions disclosed in the present application.

Claims

1. The efficient carbon source accurate feeding system comprises a selection tank (1), a biochemical tank (2), a carbon source feeding pipeline (3), a dissolved oxygen meter DO (4), an oxidation-reduction potentiometer ORP (5), a carbon source storage tank (6), a carbon source feeding pump (7) and a control system (8), and is characterized in that the selection tank (1) is provided with a water inlet and a carbon source feeding port, the selection tank (1) is connected with the biochemical tank (2), the dissolved oxygen meter DO (4) and the oxidation-reduction potentiometer ORP (5) are arranged in the biochemical tank (2), the dissolved oxygen meter DO (4) and the oxidation-reduction potentiometer ORP (5) transmit detected data to the control system (8) through a conducting wire in real time, and the control system (8) is connected with the carbon source feeding pump (7) through a power line.

2. The efficient carbon source accurate dosing system of claim 1, wherein: and a control system (8) is arranged outside the biochemical pool (2), signals detected by the dissolved oxygen meter DO (4) and the oxidation-reduction potentiometer ORP (5) are received by the control system (8) in real time, and the converted numerical values are used as control parameters to control the work of the carbon source feeding pump (7).

3. The efficient carbon source accurate dosing system of claim 1, wherein: the control system (8) comprises a programmable controller, the programmable controller is electrically connected with the dissolved oxygen meter DO (4) and the oxidation-reduction potentiometer ORP (5), and one end of the control system (8) is electrically connected with the carbon source feeding pump (7) through a wire.

4. The efficient carbon source accurate dosing system of claim 1, wherein: the carbon source feeding pump (7) is speed-adjustable and variable-frequency, and receives an instruction sent by the control system (8) to adjust the working frequency and the working rotating speed at any time.

5. The efficient carbon source accurate dosing system of claim 1, wherein: the selection tank (1) and the biochemical tank (2) are made of concrete structures or steel structures.

6. The efficient carbon source accurate dosing system of claim 1, wherein: the detection ends of the dissolved oxygen meter DO (4) and the oxidation-reduction potentiometer ORP (5) extend into the biochemical pool (2) and are arranged near the water outlet.

7. The efficient carbon source accurate dosing system of claim 1, wherein: the carbon source storage tank (6) is provided with a liquid level controller, the liquid level controller comprises a liquid level meter and a battery valve, the liquid level meter is located in the carbon source storage tank (6) and monitors the liquid level height, and the liquid level controller is connected with a control system (8).