CN216892712U - Fluorine chemical enterprises's distribution of rain and sewage drainage system - Google Patents

Abstract

The utility model discloses a rain and sewage separation and drainage system for a fluorine chemical enterprise, comprising a sewage collection system, a rainwater collection system and a sewage treatment station; the sewage collection system includes a domestic sewage unit and an industrial waste water unit; the rainwater collection system includes a plurality of polluted rainwater collection units, Non-polluted rainwater collection unit and later rainwater tank; polluted rainwater collection unit includes open water collection tank in polluted area, initial rainwater collection tank in polluted area, and open channel for late rainwater in polluted area; It is connected with the open channel of the late rainwater in the polluted area; the initial rainwater collection tank in the polluted area of each polluted rainwater collection unit is connected to the sewage treatment station through the pipeline; Pool connection. The utility model has the advantages of short initial rainwater collection pipeline, small investment in pipeline network construction, flexible location of the collection tank, obvious diversion effect and the like.

Description

A kind of fluorine chemical enterprise rain and sewage diversion drainage system

technical field

The utility model belongs to the field of water treatment, and relates to a rainwater treatment system, in particular to a rainwater and sewage separation and drainage system for fluorine chemical enterprises.

Background technique

At present, more and more attention is paid to the environmental protection of chemical parks. The discharge of sewage and rainwater must meet certain environmental evaluation standards, including detection indicators such as CODcr, water volume, pH, and characteristic pollutants. In order to meet the strict environmental assessment standards, the chemical park needs to design and construct a corresponding drainage scheme, and a scientific, reasonable and effective drainage scheme is particularly important.

At present, the drainage design of chemical parks mainly has the following problems: the manual manual switching devices for polluted rainwater in the initial stage and clean rainwater in the later stage mostly adopt the diversion switching form of gate valve, bell jar or overflow weir. This manual control method has many shortcomings. For example, the gate valve is used to open and close, which is time-consuming and difficult to achieve the purpose of diverting and switching, especially when it is required to open the valve in the early stage of rain and close the valve after 10-15 minutes, which is actually difficult to achieve. As a result, all the polluted rainwater in the initial stage and the clean rainwater in the later stage are all discharged into the sewage treatment plant, which increases the load of the sewage treatment plant. Either the polluted rainwater in the initial stage and the clean rainwater in the later stage are all discharged into the rainwater pipeline, which will seriously pollute the environment. Moreover, due to pollution and other reasons, the gate valve may not be opened for a long time. The overflow weir type can solve the problem of diversion of polluted rainwater in the initial stage, but there is always rainwater flowing to the sewage treatment plant from the beginning of the rainfall to the end of the rainfall, which not only increases the diameter of the sewage pipeline in the plant area, but also makes the sewage treatment plant suffer. Impact, artificially increase the load of the sewage treatment plant, which is not economical and unfavorable for treatment. In addition, the use of manual control is too flexible, which is related to the factory system and the sense of responsibility of the workers. In addition, the rainwater collection time is different in the early stage of heavy rain and light rain, and manual control is often difficult to grasp. In addition, within a period of time (24h or longer) after the rain starts, if there is another rain, the latter rain should not collect the initial rain, because the interval between the two rains is too short, and there is not much pollution on the ground. thing.

In addition, the centralized collection is to set up an initial rainwater collection tank in the whole plant, which is suitable for the situation where the plant area is small, or the pollution areas such as the installation area and the storage tank area are concentrated. The disadvantage is that the initial rainwater collection pipeline is long, the burial is deep, the pipeline network construction investment is large, the location of the collection tank is limited, and the initial rainwater runoff time in different areas is different, resulting in the initial rainwater in the remote polluted area has not yet reached the collection tank. , it will be filled by the clean rainwater in the near-end polluted area in the later stage, and it will not play the role of diversion.

Due to the particularity of fluorine-containing products, the drainage design of fluorine chemical enterprises is more important. At present, most of the drainage of fluorine chemical enterprises has the problems of high treatment cost, high operation and maintenance cost, and even the treatment results are difficult to meet high environmental standards. For the treatment of rainwater, therefore, there is an urgent need for a drainage design that can meet environmental requirements and operate at a relatively low cost.

Utility model content

The utility model provides a rain and sewage separation and drainage system for fluorine chemical enterprises, so as to overcome the defects of the prior art.

In order to achieve the above purpose, the utility model provides a rainwater and sewage diversion and drainage system for fluorine chemical enterprises. The fluorine chemical enterprise includes a polluted area and a non-polluted area, and the polluted area includes a plurality of drainage areas. A collection system and a sewage treatment station; the sewage collection system includes a domestic sewage unit and an industrial wastewater unit; the domestic sewage unit includes a domestic sewage collection pipeline and a sewage inspection well, the domestic sewage collection pipeline is connected with the sewage inspection well, and the sewage inspection well passes through The pipeline is connected with the municipal sewage pipe network; the industrial waste water unit includes an industrial sewage collection pipeline and a waste water tank, the industrial sewage collection pipeline is connected with the waste water tank, and the waste water tank is connected with the sewage treatment station through the pipeline; the rainwater collection system includes several Contaminated rainwater collection unit, non-polluted rainwater collection unit and post rainwater pool; a number of polluted rainwater collection units are equal in number to the drainage areas in the polluted area of fluorine chemical enterprises, and correspond one-to-one; the polluted rainwater collection unit includes the open channel for collecting water in the polluted area . The initial rainwater collection tank in the polluted area and the rainwater open channel in the later stage of the polluted area; the open water collection channel in the contaminated area is connected with the initial rainwater collection tank in the contaminated area and the late rainwater open channel in the contaminated area through pipelines. There is an initial rainwater valve on the pipeline between the polluted areas, and a late rainwater valve is installed on the pipeline between the open water collection channel in the polluted area and the open channel of the late rainwater in the polluted area; the initial rainwater collection tank in the polluted area of each polluted rainwater collection unit The sewage treatment station is connected; the open channel of the late rainwater in the polluted area of each polluted rainwater collection unit is connected to the rainwater pool in the later stage through the pipeline; The water open channel is connected to the rainwater open channel in the non-polluted area through the pipeline, and the rainwater open channel in the non-polluted area is connected to the later rainwater tank through the pipeline; the later rainwater tank is connected to the municipal rainwater pipe network through the pipeline; the sewage treatment station is connected to the municipal sewage pipe network through the pipeline. connect.

Further, the present utility model provides a rainwater and sewage diversion and drainage system for fluorine chemical enterprises, which can also have the following characteristics: an emergency system is also included; The rainwater open channels in the non-polluted area of the non-polluted rainwater collection unit are connected to the emergency pool through pipelines, and the emergency tank is connected to the sewage treatment station through pipelines; There are emergency valves; there are non-emergency valves on the pipelines between the rainwater open channels in the later stage of the polluted area and the rainwater open channels in the non-polluted areas and the later rainwater pools.

Further, the utility model provides a rainwater and sewage diversion and drainage system for fluorine chemical enterprises, which can also have the following characteristics: wherein, the water outlet of the open water collecting channel in the polluted area is provided with an on-line fluoride ion monitor; Equipped with liquid level monitor.

Further, the present utility model provides a rainwater and sewage diversion and drainage system for fluorine chemical enterprises, which may also have the following characteristics: wherein, an online detection device is provided in the rainwater pool in the later stage.

Further, the present utility model provides a rainwater and sewage diversion and drainage system for fluorine chemical enterprises, which can also have the following characteristics: wherein, the rainwater pool in the later stage is also connected to the sewage treatment station through pipelines.

Further, the utility model provides a rainwater and sewage diversion and drainage system for fluorine chemical enterprises, which can also have the following characteristics: wherein, a rainwater treatment valve is provided on the pipeline between the later rainwater tank and the sewage treatment station, and the later rainwater tank and the sewage treatment station are provided with rainwater treatment valves. There are discharge valves on the pipelines between the municipal rainwater pipe networks.

Further, the present invention provides a rainwater and sewage diversion and drainage system for a fluorine chemical enterprise, which may also have the following characteristics: wherein, the online detection device includes a COD online monitor, a pH online monitor and a fluoride ion online monitor.

Further, the present invention provides a rainwater and sewage diversion and drainage system for fluorine chemical enterprises, which can also have the following characteristics: wherein, the outlet of the rainwater pool in the later stage is provided with a flow metering device.

The beneficial effects of the present utility model are:

1. The system includes a sewage collection system and a rainwater collection system. The rainwater collection system also includes a polluted rainwater collection unit and a non-polluted rainwater collection unit. Different areas and different types of water bodies of fluorine chemical enterprises are treated differently, which is scientific, reasonable and efficient.

2. By setting up multiple polluted rainwater collection units in fluorine chemical enterprises, the initial rainwater collection can be realized by pieces, which can be applied to the situation where the factory area is large and the pollution areas such as the installation area and the storage tank area are relatively fragmented, and different pollution areas can be The initial rainwater collection ponds in the polluted area with different volumes and positions are set up to collect the initial rainwater in this area more targetedly. The advantages of this system are that the initial rainwater collection pipeline is short, the investment in the construction of the pipeline network is small, and the location of the collection pond is flexible. , The diversion effect is obvious.

3. The fluoride ion online monitor is set up in different areas, and the phenomenon of exceeding the standard can be traced and traced, and controlled in time. For example, if the fluoride ion monitoring in a polluted area exceeds the standard, the early and late rainwater valves in this area are not switched, and the initial rainwater in this area is collected into the initial rainwater collection tank in the polluted area, and will not flow into other places downstream, thus not affecting the normal operation of other areas. rainwater collection.

4. Rainwater transportation adopts rainwater open channels, which is conducive to the discharge of rainwater from plots and roads along the line, and can effectively resist the erosion of the rainwater pipe network by short-term heavy rainstorms, and play the role of regulating, storing and storing rainwater. Sewage mixed with rainwater.

5. The system also includes an emergency system. When accidental pollution occurs, the rainwater collection system can be used for emergency treatment, which is efficient and convenient.

Description of drawings

Figure 1 is a schematic diagram of the rain and sewage diversion drainage system of a fluorine chemical enterprise.

Detailed ways

The specific embodiments of the present invention will be described below with reference to the accompanying drawings.

As shown in FIG. 1 , the utility model provides a rainwater and sewage diversion and drainage system for a fluorine chemical enterprise. The fluorine chemical enterprise includes a polluted area and a non-polluted area, and the polluted area includes a plurality of drainage areas.

The system includes a sewage collection system 1, a rainwater collection system 2 and a sewage treatment station 3.

The sewage collection system 1 includes a domestic sewage unit 11 and an industrial waste water unit 12 .

The domestic sewage unit 11 includes a domestic sewage collection pipeline 111 and a sewage inspection well 112. The domestic sewage collection pipeline 111 is connected to the sewage inspection well 112, and the sewage inspection well 112 is connected to the municipal sewage pipe network A through the pipeline.

The industrial wastewater unit 12 includes an industrial wastewater collection pipeline 121 and a wastewater pool 122, the industrial wastewater collection pipeline 121 is connected to the wastewater pool 122, and the wastewater pool 122 is connected to the wastewater treatment station 3 through a pipeline.

The rainwater collection system 2 includes several polluted rainwater collection units 21 , non-polluted rainwater collection units 22 and later rainwater pools 23 .

The number of polluted rainwater collection units 21 is equal to the number of drainage areas in the polluted area of the fluorine chemical enterprise, and they correspond one-to-one.

The polluted rainwater collection unit 21 includes an open water collection channel 211 in the polluted area, an initial rainwater collection tank 212 in the polluted area, and an open channel 213 in the later period of the polluted area. The open water collecting channel 211 in the polluted area is connected to the initial rainwater collection tank 212 in the polluted area and the open channel 213 in the later stage of the polluted area through pipelines. The pipeline between the open water collecting channel 211 in the polluted area and the initial rainwater collection tank 212 in the polluted area is provided with initial rainwater Valve 214, a late rainwater valve 215 is provided on the pipeline between the open water collection channel 211 in the polluted area and the open channel 213 of the late rainwater in the polluted area.

The initial rainwater collection tank 212 of each contaminated rainwater collection unit 21 is connected to the sewage treatment station 3 through pipelines. The open channels 213 of the late rainwater in the polluted area of each polluted rainwater collection unit 21 are connected to the late rainwater pools 23 through pipelines.

The non-polluted rainwater collection unit 22 includes a non-polluted area open water collection channel 221 and a non-polluted area rainwater open channel 222. The non-polluted area water collection open channel 221 is connected to the non-polluted area rainwater open channel 222 through a pipeline, and the non-polluted area rainwater open channel 222 is connected through a pipeline. It is connected to the later rainwater pool 23.

The rainwater pool 23 in the later stage is connected to the municipal rainwater pipe network B through pipelines.

The sewage treatment station 3 is connected to the municipal sewage pipe network A through pipelines.

When it rains, the initial rainwater valve 214 is opened, and the water in the open channels 211 of each polluted area is first discharged into the initial rainwater collection tank 212 of the polluted area. After reaching certain conditions, the initial rainwater valve 214 is closed and the late rainwater valve 215 is opened. At this time, the water in the open water collection channel 211 in the polluted area is then discharged into the open rainwater channel 213 in the later stage of the polluted area. The initial rainwater in the initial rainwater collection tank 212 in each polluted area is transported to the sewage treatment station 3 for treatment, and discharged after reaching the standard.

The conditions for collecting late rainwater are liquid level and fluoride ion concentration. Among them, a fluoride ion on-line monitor is provided at the water outlet of the open water collection channel 211 in the polluted area to monitor the fluoride ion of the rainwater. The rainwater collection tank 212 in the initial stage of the polluted area is provided with a liquid level monitor to monitor the liquid level in the tank. That is, the liquid level monitor and the fluoride ion online monitor monitor the liquid level and the fluoride ion respectively, and when the collection liquid level is reached and the fluoride ion online monitoring is qualified. This system judges the switching time of the initial/late rainwater by setting the liquid level monitor and the fluoride ion online monitor, which can be applied to the automatic control system, so as to be more accurate and effective.

Further, in a preferred embodiment, the later rainwater tank 23 is provided with an online detection device; the later rainwater tank 23 is also connected to the sewage treatment station 3 through pipelines; A rainwater treatment valve 231 is provided on the pipeline, and a discharge valve 232 is provided on the pipeline between the later rainwater pool 23 and the municipal rainwater pipe network B.

Specifically, the on-line detection devices include COD on-line monitors, pH on-line monitors and fluoride ion on-line monitors. The outlet of the later rainwater pool 23 is also provided with a flow metering device. In the present application, the liquid level monitor, the fluoride ion on-line monitor, the COD on-line monitor, the pH on-line monitor and the flow measurement equipment all use existing instruments, which do not belong to the protection scope of the present application.

In order to further ensure the water quality of the discharge, the water in the rainwater tank 23 in the later stage is further monitored by the online detection device. When the monitoring data are all up to the standard, the discharge valve 232 is opened, and the water in the rainwater tank 23 in the later stage is discharged into the municipal rainwater pipe network B. . If the monitoring data does not meet the standard, then close the discharge valve 232, open the rainwater treatment valve 231, and the water in the rainwater tank 23 in the later stage enters the sewage treatment station 3 for treatment, and then discharges after reaching the standard.

Further, in a preferred embodiment, the system further includes an emergency system. The emergency system includes an emergency pool 41 . The open channel 213 of the late-stage rainwater in the polluted area of each polluted rainwater collection unit 21 and the open channel 222 of the non-polluted area of the non-polluted rainwater collection unit 22 are connected to the emergency pool 41 through pipelines, and the emergency pool 41 is connected by pipes. The road is connected to the sewage treatment station 3. An emergency valve 42 is provided on the pipeline between the rainwater open channel 213 in the later stage of the polluted area and the rainwater open channel 222 in the non-polluted area and the emergency pool 41 . A non-emergency valve 43 is provided on the pipeline between the rainwater open channel 213 in the later stage of the polluted area and the rainwater open channel 222 in the non-polluted area and the rainwater pool 23 in the later stage.

System working method: The domestic sewage in the factory area is transported to the sewage inspection well 112 through the domestic sewage collection pipeline 111 (for example, gravity underground pipe is used to flow to the sewage inspection well 112), and then discharged to the municipal sewage pipe network A after reaching the standard. The industrial wastewater in the factory area is collected into the wastewater pools 122 of each workshop through the industrial wastewater collection pipeline 121, and is pumped into the wastewater station for treatment. When the rainwater in the factory area is not in an emergency state, open the non-emergency valve 43 and the initial rainwater valve 214, and the initial rainwater in the polluted area will be confluent to the initial rainwater collection tank 212 in the respective polluted area. The initial rainwater collection tank 212 in the polluted area is equipped with liquid level monitoring. When the set liquid level is reached and the fluoride ion detection reaches the standard, the late rainwater valve 215 is opened and the initial rainwater valve 214 is closed, so that the late rainwater can pass through the late rainwater open channel in the polluted area. 213 enters the rainwater tank 23 in the later stage, and an online monitoring device for COD, PH, and fluoride ions is set in the rainwater tank 23 in the later stage. When the online monitoring data reaches the standard, the discharge valve 232 is automatically opened, so that the rainwater passes through the metering equipment (Bathe metering tank or flowmeter) Discharge into the municipal rainwater pipe network B. When an emergency occurs in the plant area, close the non-emergency valve 43 and the initial rainwater valve 214, and open the emergency valve 42 and the late rainwater valve 215, so that the water flows through the late rainwater open channel 213 in the polluted area and the rainwater open channel 222 in the non-polluted area into the emergency pool 41. The sewage in the pool is pumped into sewage treatment station 3 for treatment, and discharged to the municipal sewage pipe network A after reaching the standard.

Claims (8)

1. a fluorine chemical enterprise rain and sewage diversion drainage system, the fluorine chemical enterprise comprises a polluted area and a non-polluted area, and the polluted area comprises a plurality of drainage areas, it is characterized in that: Including sewage collection systems, rainwater collection systems and sewage treatment stations; The sewage collection system includes a domestic sewage unit and an industrial wastewater unit; The domestic sewage unit includes the domestic sewage collection pipeline and the sewage inspection well, the domestic sewage collection pipeline is connected with the sewage inspection well, and the sewage inspection well is connected with the municipal sewage pipe network through the pipeline; The industrial wastewater unit includes an industrial wastewater collection pipeline and a wastewater pool, the industrial wastewater collection pipeline is connected to the wastewater pool, and the wastewater pool is connected to the wastewater treatment station through the pipeline; The rainwater collection system includes several polluted rainwater collection units, non-polluted rainwater collection units and post-rainwater pools; The number of polluted rainwater collection units is equal to the number of drainage areas in the polluted area of fluorine chemical enterprises, and they correspond one-to-one; The polluted rainwater collection unit includes the open canal for collecting water in the polluted area, the initial rainwater collection tank in the polluted area, and the open canal for rainwater in the later stage of the polluted area; The open water catchment channel in the polluted area is connected to the initial rainwater collection tank in the polluted area and the later rainwater open channel in the polluted area through pipelines. The pipeline between the open water catchment channel in the polluted area and the initial rainwater collection tank in the polluted area is provided with an initial rainwater valve, and the polluted area collects water. There is a late rainwater valve on the pipeline between the open channel and the late rainwater open channel in the polluted area; The initial rainwater collection tank in the polluted area of each polluted rainwater collection unit is connected to the sewage treatment station through pipelines; The open channel of the late rainwater in the polluted area of each polluted rainwater collection unit is connected to the late rainwater pool through the pipeline; The non-polluted rainwater collection unit includes open water collection channels in non-polluted areas and open rainwater channels in non-polluted areas. In the later stage, the rainwater pool is connected to the municipal rainwater pipe network through pipelines; The sewage treatment station is connected to the municipal sewage pipe network through pipelines. 2. fluorine chemical enterprise rain and sewage diversion drainage system according to claim 1, is characterized in that: Also includes emergency systems; The emergency system includes an emergency pool, and each of the open channels for rainwater in the late stage of the polluted area of the polluted rainwater collection unit and the open channels for rainwater in the non-polluted area of the non-polluted rainwater collection unit are connected to the emergency pool through pipelines, and the emergency pool is connected to the sewage treatment station through pipelines. connect; There are emergency valves on the pipelines between the rainwater open channels in the later stage of the polluted area and the rainwater open channels in the non-polluted areas and the emergency pool; There are non-emergency valves on the pipelines between the rainwater open channels in the polluted areas and the rainwater open channels in the non-polluted areas and the rainwater pools in the later period. 3. fluorine chemical enterprise rain and sewage diversion drainage system according to claim 1, is characterized in that: Wherein, a fluoride ion on-line monitor is provided at the water outlet of the open water collecting channel in the polluted area; a liquid level monitor is provided in the initial rainwater collection tank of the polluted area. 4. fluorine chemical enterprise rain and sewage diversion drainage system according to claim 1, is characterized in that: Wherein, an on-line detection device is arranged in the rainwater pool in the later stage. 5. fluorine chemical enterprise rain and sewage diversion drainage system according to claim 4, is characterized in that: Wherein, the rainwater tank in the later stage is also connected with the sewage treatment station through pipelines. 6. fluorine chemical enterprise rain and sewage diversion drainage system according to claim 5, is characterized in that: Wherein, the pipeline between the later rainwater tank and the sewage treatment station is provided with a rainwater treatment valve, and the pipeline between the later rainwater tank and the municipal rainwater pipe network is provided with a discharge valve. 7. fluorine chemical enterprise rain and sewage diversion drainage system according to claim 4, is characterized in that: Wherein, the on-line detection device includes COD on-line monitor, pH on-line monitor and fluoride ion on-line monitor. 8. fluorine chemical enterprise rain and sewage diversion drainage system according to claim 1, is characterized in that: Wherein, the outlet of the later rainwater pool is provided with a flow metering device.

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