CN215809135U

CN215809135U - Formula of sinking sewage treatment plant air purification system

Info

Publication number: CN215809135U
Application number: CN202122428942.8U
Authority: CN
Inventors: 李彰鑫; 侯锋; 庞洪涛; 李文彦; 卢先春; 江乐勇; 宋亚宁
Original assignee: SDIC Xinkai Water Environment Investment Co Ltd
Current assignee: SDIC Xinkai Water Environment Investment Co Ltd
Priority date: 2021-10-09
Filing date: 2021-10-09
Publication date: 2022-02-11
Anticipated expiration: 2031-10-09

Abstract

The utility model provides an air purification system of a sinking type sewage treatment plant, which comprises an odor collecting and processing module, a fresh air conveying module and a control module, wherein a heat exchange unit is arranged between the odor collecting and processing module and the fresh air conveying module; the odor treatment module is used for purifying, sterilizing and disinfecting odor and then discharging the odor into the external environment; the fresh air delivery module is used for delivering fresh air to an activity area of an operator; the control module is used for monitoring the odor collection processing module and the fresh air delivery module, and the control module is also used for adjusting the gas flow of the odor collection processing module and the fresh air delivery module. Collect processing module and fresh air through the foul smell and carry the module cooperation to use, on the one hand purify the foul smell, disinfect and discharge into external environment after the virus killing again, on the other hand carries fresh air to operation personnel activity area, helps improving operation personnel's security, the guarantee occupational health.

Description

Formula of sinking sewage treatment plant air purification system

Technical Field

The utility model relates to the technical field of air purification, in particular to an air purification system of a sinking type sewage treatment plant.

Background

A sunk urban sewage treatment and space comprehensive utilization system is mainly characterized in that public services such as sewage treatment and recycling, ecological landscape, physical education, entertainment, science popularization education, scientific research and development and the like are organically integrated, overall planning is carried out on the ground and underground, land resources are greatly saved, the quality of the surrounding environment is improved, the problem of 'adjacent avoidance effect' of a sewage plant is thoroughly solved, and the conversion from 'negative assets' to 'positive assets' of a city is really realized.

With the improvement of living standard and the enhancement of environmental awareness, the odor pollution becomes a more prominent environmental problem. Due to the fact that the space of the sinking type sewage plant is closed, volatile toxic and harmful gases such as hydrogen sulfide, ammonia, methyl mercaptan, methyl sulfide and the like are easily generated in the grid unit, the biological treatment unit and the sludge treatment unit during operation, and the volatile toxic and harmful gases can be discharged into the atmosphere after the grid unit, the biological treatment unit and the sludge treatment unit are subjected to closed treatment. However, the odor collecting and treating system also has the risk of leakage of malodorous gases, which affects the health and production safety of operators, and has bad treatment and even great potential safety hazards.

The prior Chinese patent with publication number CN213467401U discloses a deodorizing device applied to a sinking type sewage treatment plant. The deodorization device applied to the sunken sewage treatment plant comprises a main biological deodorization unit and an auxiliary biological deodorization unit which are sequentially communicated, wherein the main biological deodorization unit comprises a first air inlet layer, a first packing layer and a first spraying layer which are sequentially arranged from bottom to top, the auxiliary biological deodorization unit comprises a second air inlet layer, a second packing layer and a second spraying layer which are sequentially arranged from bottom to top, the packing of the first packing layer is polyurethane packing, and the packing of the second packing layer is carbon packing.

The inventor thinks that the prior art only collects and processes the waste gas in areas such as a biochemical reaction tank of a submerged sewage treatment plant, and does not consider fresh air delivery in areas with serious air pollution such as sludge treatment, thereby influencing the health of workers and having a place to be improved.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects in the prior art, the utility model aims to provide an air purification system of a sunken sewage treatment plant.

The air purification system of the sinking type sewage treatment plant comprises an odor collection processing module and a fresh air conveying module, wherein a heat exchange unit is arranged between the odor collection processing module and the fresh air conveying module; the odor treatment module comprises a gas collecting hood, a biological trickling filter, a photocatalytic oxidation unit and an exhaust unit which are arranged at an odor source, and the gas collecting hood, the biological trickling filter, the photocatalytic oxidation unit and the exhaust unit are communicated in sequence; the fresh air delivery module comprises an air filter, an air supply unit and an air supply outlet which are sequentially arranged, and the air supply outlet is used for delivering fresh air to an activity area of an operator.

Preferably, the photocatalytic oxidation unit comprises a catalyst capable of generating O₃The ultraviolet lamp tube.

Preferably, an air exhaust silencer is arranged at the air outlet of the air exhaust unit.

Preferably, a fire retardant valve is arranged on an exhaust pipeline of the exhaust unit.

Preferably, an air volume adjusting valve is arranged in the air supply unit and used for matching the air intake of the fresh air conveying module with the air exhaust volume of the odor collecting and processing module.

Preferably, the outlet of the blower unit is provided with a blower muffler.

Preferably, the heat exchange unit comprises a high-efficiency gas-gas heat exchanger, the high-efficiency gas-gas heat exchanger is positioned between the photocatalytic oxidation unit and the exhaust fan set, and the high-efficiency gas-gas heat exchanger is also positioned between the air supply silencer and the air supply outlet; and the high-efficiency gas-gas heat exchanger separates gas in the odor collecting and processing module from gas in the fresh air conveying module.

Preferably, the structure of the air filter comprises a bag structure or a plate structure.

Preferably, the system also comprises a control module, wherein the control module comprises an HMI (human machine interface) man-machine monitoring unit and a PLC (programmable logic controller) control unit, and the man-machine monitoring unit is connected with the PLC control unit; the HMI human-machine monitoring unit is used for receiving a control instruction and carrying out human-machine interface display and alarm; and the PLC control unit is used for monitoring the odor collecting and processing module and the fresh air conveying module and outputting monitoring and diagnosis results to the HMI human-machine monitoring unit.

Preferably, a filtering metal net is arranged at the air suction opening of the fresh air conveying module.

Compared with the prior art, the utility model has the following beneficial effects:

1. according to the utility model, the odor collection and treatment module and the fresh air delivery module are matched for use, so that on one hand, odor is purified, sterilized and disinfected and then discharged into the external environment, and on the other hand, fresh air is delivered to the activity area of an operator, which is beneficial to improving the working stability of the air purification system of the submerged sewage treatment plant, thereby being beneficial to improving the safety of the operator and ensuring the occupational health;

2. the utility model carries out silencing treatment on the exhaust air and the intake air through the exhaust air silencer and the air supply silencer, which is beneficial to reducing noise and further is beneficial to improving the acoustic performance of the air purification system;

3. according to the utility model, the heat exchange between the high-temperature waste gas and the fresh air is realized through the heat exchange unit, so that the energy loss of the air purification system is reduced.

Drawings

Other features, objects and advantages of the utility model will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:

fig. 1 is a schematic view of the overall structure of an air purification system according to the present invention.

Reference numerals:

Detailed Description

The present invention will be described in detail with reference to specific examples. The following examples will assist those skilled in the art in further understanding the utility model, but are not intended to limit the utility model in any way. It should be noted that it would be obvious to those skilled in the art that various changes and modifications can be made without departing from the spirit of the utility model. All falling within the scope of the present invention.

As shown in fig. 1, the air purification system of a submerged sewage treatment plant provided by the present invention comprises an odor collection processing module, a fresh air delivery module and a control module, wherein a heat exchange unit 13 is arranged between the odor collection processing module and the fresh air delivery module, so as to realize heat exchange between odor and fresh air and reduce energy loss of the system.

The odor treatment module is used for purifying, disinfecting and discharging into external environment after the virus is killed to the foul smell, and fresh air carries the module to be used for carrying fresh air to staff's active area, carries the module by the odor treatment module and the two cooperation of fresh air, when purifying, disinfecting to the foul smell, still carries fresh air to operation personnel's active area, ensures occupational health and safety, has built the last protective screen of the novel virus propagation such as coronavirus of separation.

The control module is used for monitoring the odor collecting and processing module and the fresh air conveying module, the control module is also used for adjusting the gas flow of the odor collecting and processing module and the fresh air conveying module, and the odor collecting and processing module and the fresh air conveying module are monitored and adjusted through the control module, so that the air purification system moves more smoothly, and the air purification efficiency is improved. And the air purification system of the application carries out simulation design on the motion fluid mechanics, and optimizes the air supply and exhaust design.

The odor treatment module comprises a gas collecting hood 1, a biological trickling filter 2, a photocatalytic oxidation unit 3 and an exhaust unit 4 which are arranged at an odor source, the gas collecting hood 1, the biological trickling filter 2, the photocatalytic oxidation unit 3 and the exhaust unit 4 are sequentially communicated, and gas in the odor treatment module is discharged into the external environment through an air outlet of the exhaust unit 4. The gas-collecting hood 1 collects and guides the odor gas into the bio-trickling filter 2, and the bio-trickling filter 2 mainly purifies the malodorous gas such as H2S. The photocatalytic oxidation unit 3 comprises an ultraviolet lamp tube 5 capable of generating O3, residual VOCs are further purified by photocatalytic oxidation, viruses are killed, and the effect of sterilization is achieved.

Air exhaust silencer 6 is installed at the air outlet of exhaust unit 4 to exhaust 4 and carry out the amortization of airing exhaust, exhaust unit 4's air outlet passes through pipeline and 14 intercommunications of pavilion, and pavilion 14 is located the low reaches of silencer 6 of airing exhaust, and carries out amortization by exhaust unit 4 exhaust gas through silencer 6 of airing exhaust earlier, gets into pavilion 14 again and discharges. Fire relief valve 7 is all installed on every exhaust pipe of exhaust unit 4, and fire relief valve 7 can be automatic quick closing air outlet after the indoor conflagration of equipment takes place, can prevent the conflagration from spreading the expansion effectively.

The fresh air delivery module comprises an air filter 8, an air supply unit 9 and an air supply outlet 10 which are sequentially arranged, and the air supply outlet 10 is positioned in a region where workers move. The air suction opening 11 is a fresh air suction position of the fresh air conveying module, and a metal net is arranged at the air suction opening 11 to prevent sundries from being sucked. Air sucked from the air suction opening 11 is further filtered by the air filter 8 and enters the air supply unit 9, the structure of the air filter 8 comprises a bag type structure or a plate type structure, the bag type structure is preferred in the application, the filtering area is increased by more than 3-4 times, the wind resistance can be greatly reduced, the dust holding capacity is increased, and the replacement period is prolonged.

An automatic air door actuator is installed on an air supply pipeline of the air supply unit 9, an air volume adjusting valve is installed in the air supply unit 9, and a limiting device with the minimum opening degree of the adjusting valve is arranged, so that when air supply and air exhaust of equipment change, the air volume adjusting valve adjusts the air supply volume to enable the air supply volume of the air supply unit 9 to be matched with the air exhaust volume of the exhaust unit 4. And an air outlet of the air blower unit 9 is provided with an air supply silencer 12, so that the air supply of the air blower unit 9 is silenced.

The heat exchange unit 13 is a high-efficiency gas-gas heat exchanger, preferably a plate heat exchanger, the plate heat exchanger is located between the photocatalytic oxidation unit 3 and the exhaust unit 4, the plate heat exchanger is also located between the air supply silencer 12 and the air supply outlet 10, and the plate heat exchanger separates gas in the odor collecting and processing module from gas in the fresh air conveying module, so that heat exchange between odor and fresh air is realized, and energy loss of the system is reduced.

The control module comprises an HMI man-machine monitoring unit and a PLC control unit, and the man-machine monitoring unit is connected with the PLC control unit. The HMI human-machine monitoring unit is used for receiving the control instruction and carrying out human-machine interface display and alarm, the PLC control unit can realize automatic control, constant temperature and timing and has various protection and alarm functions, and the HMI human-machine monitoring unit is connected with the PLC control unit through a wired or wireless network. The HMI human-machine monitoring unit receives a control instruction of a manager and outputs the control instruction to the PLC control unit, and the PLC control unit conducts management and control according to the received instruction. Meanwhile, the PLC control unit outputs monitoring and diagnosis results to the HMI human-machine monitoring unit, and the HMI human-machine monitoring unit displays human-machine interfaces and gives an alarm.

The air volume adjusting valve is connected with the PLC control unit, and the PLC control unit controls the opening of the air volume adjusting valve, so that the air inlet volume of the fresh air conveying module is matched with the air outlet volume of the odor collecting and processing module.

The installation and maintenance of equipment in the air purification system are independent from the existing air conditioning system, the existing sunken sewage treatment plant of the air conditioning system is convenient to refit, the maintenance cleanness of the air purification system at the later stage does not influence the operation of the air conditioning system, and the system has good compatibility. Through the air purification system, the air is synchronously purified from the aspects of removing malodorous gas and sterilizing. The method reduces the malodorous gas and simultaneously kills germs in the air, thereby effectively purifying the air of the sink type sewage treatment plant.

Preferred embodiment(s) of the utility model

According to the air purification system of the sinking type sewage treatment plant, the centrifugal fans with large air quantity, small vibration, low noise, low energy consumption, high efficiency, small volume and compact structure are preferably selected by the exhaust fan unit 4 and the air supply unit 9.

Principle of operation

During work, odor sequentially passes through the gas collecting hood 1, the biological trickling filter 2, the photocatalytic oxidation unit 3 and the exhaust unit 4 to be purified, disinfected and sterilized; fresh air is conveyed to the activity area of workers through an air suction port 11, an air filter 8, an air supply unit 9 and an air supply port 10 in sequence, so that the occupational health and safety of the workers are guaranteed; and the odor and the fresh air exchange heat when passing through the plate heat exchanger 14, so that the energy loss of the system is reduced.

In the description of the present application, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present application and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present application.

The foregoing description of specific embodiments of the present invention has been presented. It is to be understood that the present invention is not limited to the specific embodiments described above, and that various changes or modifications may be made by one skilled in the art within the scope of the appended claims without departing from the spirit of the utility model. The embodiments and features of the embodiments of the present application may be combined with each other arbitrarily without conflict.

Claims

1. The air purification system of the sinking type sewage treatment plant is characterized by comprising an odor collection processing module and a fresh air conveying module, wherein a heat exchange unit (13) is arranged between the odor collection processing module and the fresh air conveying module;

the odor treatment module comprises a gas collecting hood (1), a biological trickling filter (2), a photocatalytic oxidation unit (3) and an exhaust unit (4), which are arranged at an odor source, wherein the gas collecting hood (1), the biological trickling filter (2), the photocatalytic oxidation unit (3) and the exhaust unit (4) are communicated in sequence;

the fresh air delivery module comprises an air filter (8), an air supply unit (9) and an air supply outlet (10) which are sequentially arranged, and the air supply outlet (10) is used for delivering fresh air to an activity area of an operator.

2. A submerged sewage treatment plant air purification system according to claim 1, characterized in that the photocatalytic oxidation unit (3) comprises a device capable of producing O₃The ultraviolet lamp tube (5).

3. The air purification system of a submerged sewage treatment plant according to claim 1, wherein an exhaust silencer (6) is arranged at the air outlet of the exhaust unit (4).

4. The air purification system of a submerged sewage treatment plant according to claim 1, characterized in that a fire retardant valve (7) is arranged on the exhaust duct of the exhaust unit (4).

5. The air purification system of a submerged sewage treatment plant according to claim 1, wherein an air volume adjusting valve is arranged in the blower unit (9) and is used for adapting the air intake of the fresh air delivery module and the air exhaust of the odor collection and treatment module.

6. The submerged sewage treatment plant air purification system according to claim 1, characterized in that the outlet of the blower unit (9) is provided with a blower muffler (12).

7. The air purification system of a submerged sewage treatment plant according to claim 1, wherein the heat exchange unit (13) comprises a high efficiency air-to-air heat exchanger, the high efficiency air-to-air heat exchanger is positioned between the photocatalytic oxidation unit (3) and the exhaust fan unit (4), and the high efficiency air-to-air heat exchanger is also positioned between the air supply silencer (12) and the air supply outlet (10);

and the high-efficiency gas-gas heat exchanger separates gas in the odor collecting and processing module from gas in the fresh air conveying module.

8. A submerged sewage treatment plant air purification system according to claim 1, characterized in that the structure of the air filter (8) comprises a bag structure or a plate structure.

9. The air purification system of the submerged sewage treatment plant according to claim 1, further comprising a control module, wherein the control module comprises an HMI human machine monitoring unit and a PLC control unit, and the human machine monitoring unit is connected with the PLC control unit;

the HMI human-machine monitoring unit is used for receiving a control instruction and carrying out human-machine interface display and alarm;

and the PLC control unit is used for monitoring the odor collecting and processing module and the fresh air conveying module and outputting monitoring and diagnosis results to the HMI human-machine monitoring unit.

10. The submerged sewage treatment plant air purification system according to claim 1, wherein a filtering wire mesh is arranged at the air suction opening (11) of the fresh air delivery module.