CN216584525U

CN216584525U - Recirculated cooling water waste water recovery system

Info

Publication number: CN216584525U
Application number: CN202123170307.0U
Authority: CN
Inventors: 黄安华; 米景民
Original assignee: Shanghai Cang Lang Yuan Water Treatment Engineering Co ltd
Current assignee: Shanghai Cang Lang Yuan Water Treatment Engineering Co ltd
Priority date: 2021-12-14
Filing date: 2021-12-14
Publication date: 2022-05-24
Anticipated expiration: 2031-12-14

Abstract

The utility model discloses a recycling system of circulating cooling water wastewater, which comprises a raw water pool, a flocculator, a vertical flow inclined tube sedimentation tank, an intermediate water tank, a multi-medium filter, an active carbon filter, a security filter, a recycling reverse osmosis device and a desalted water raw water tank which are sequentially communicated through a pipeline, wherein a sewage submersible pump is arranged on the pipeline between the raw water pool and the flocculator, a first-level high-pressure pump is arranged on the pipeline between the security filter and the recycling reverse osmosis device, a sludge discharge pipe is arranged on the vertical flow inclined tube sedimentation tank and communicated with a filter press, the recycling reverse osmosis device is provided with a concentrated water discharge port, and the concentrated water discharge port is communicated with a sewage treatment system; the whole system is subjected to various optimized combinations, so that the occupied area is small, and the applicability is strong; the utility model uses mature technology to achieve the purposes of reducing power consumption, saving energy and reducing treatment cost and operating cost.

Description

Recirculated cooling water waste water recovery system

Technical Field

The utility model relates to the field of wastewater treatment, in particular to a circulating cooling water wastewater recovery system.

Background

With the development of economic society, the problems of water resource shortage and water environment deterioration are increasingly prominent, the national requirements on environmental protection are higher and higher, the water cost and the sewage discharge cost are increased continuously, and the water-saving and emission-reducing effects are more and more emphasized by the restrictive emission policy which is issued one after another.

The chemical industry is a large household using water and electricity, and if the water saving is integrally planned and the process technology is improved, the purposes of improving the utilization efficiency of water resources and reducing the discharge of sewage and wastewater can be achieved.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the problems and provides a circulating cooling water wastewater recovery system which comprises a raw water pool, a reaction precipitation module, a filtering module, a recovery reverse osmosis device and a desalted water raw water tank which are sequentially communicated, wherein the raw water pool is provided with a water inlet communicated with circulating cooling water, the desalted water raw water tank is provided with a water outlet, all blocks are communicated through a pipeline, and the reaction precipitation module is provided with a dosing device.

Furthermore, the reaction and precipitation module comprises a flocculator and a vertical flow inclined tube precipitation tank, the flocculator is respectively communicated with the raw water tank and the vertical flow inclined tube precipitation tank through pipelines, the vertical flow inclined tube precipitation tank is communicated with the filtering module, a sewage submersible pump is arranged between the flocculator and the raw water tank through a pipeline, and the dosing device is communicated with the flocculator.

Further, charge device includes PAC charge device, PAM charge device and germicide charge device, PAC charge device, PAM charge device and germicide charge device all are equipped with the measuring pump.

Furthermore, an inclined pipe or an inclined plate is arranged inside the vertical flow inclined pipe sedimentation tank, the inclined pipe or the inclined plate is arranged at an inclined angle of 60 degrees, a sludge discharge pipe is arranged at the bottom of the vertical flow inclined pipe sedimentation tank, the sludge discharge pipe is communicated with a filter press, and a middle water tank is communicated between the vertical flow inclined pipe sedimentation tank and the filter module.

Furthermore, the filtering module comprises a multi-media filter, an activated carbon filter and a cartridge filter which are sequentially communicated through pipelines, the multi-media filter is communicated with the middle water tank pipeline, and the cartridge filter is communicated with the recovery reverse osmosis device through a pipeline.

Further, the multi-media filter and the activated carbon filter are provided with backwashing water discharge ports, and the backwashing water discharge ports are communicated with the raw water tank through pipelines.

Furthermore, a first-level high-pressure pump is arranged on a pipeline between the cartridge filter and the recovery reverse osmosis device.

Further, retrieve reverse osmosis unit and include reverse osmosis membrane, just it is equipped with antisludging agent charge device to retrieve reverse osmosis unit, antisludging agent charge device is equipped with the measuring pump.

Furthermore, the recovery reverse osmosis device is also provided with a concentrated water outlet which is communicated with a sewage treatment system.

The water pump control system comprises a power supply and a control unit, wherein the power supply is respectively connected with the control unit and each water pump circuit, and the control unit controls the start and stop of each water pump.

Compared with the prior art, the utility model has the following beneficial effects: the wastewater treated by the method meets the requirement of water inlet of desalted water industry; the whole system is subjected to various optimized combinations, so that the occupied area is small, and the applicability is strong; the utility model uses mature technology to achieve the purposes of reducing power consumption, saving energy and reducing treatment cost and operating cost.

Drawings

FIG. 1 is a flow chart of a recirculating cooling water waste water recovery system of the present invention.

Detailed Description

A recirculating cooling water waste water reclamation system of the present invention will now be described in greater detail with reference to the schematic drawings wherein there is shown a preferred embodiment of the utility model, it being understood that one skilled in the art may modify the utility model herein described while still achieving the advantageous effects of the utility model, and accordingly, the following description is to be construed as being broadly known to those skilled in the art and not as limiting upon the utility model.

In the description of the present invention, it should be noted that, for the terms of orientation, such as "central", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., it indicates that the orientation and positional relationship shown in the drawings are based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, but does not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated without limiting the specific scope of protection of the present invention.

As shown in fig. 1, a recycling system for waste water of circulating cooling water comprises a raw water pool, a flocculator, a vertical flow inclined tube sedimentation tank, an intermediate water tank, a multi-media filter, an activated carbon filter, a cartridge filter, a recycling reverse osmosis device and a desalted water raw water tank which are sequentially communicated through pipelines.

Raw water pool: the raw water pool is set for ensuring the stability of the water inflow of the system and comprises a water inlet and a water outlet, the raw water pool is communicated with circulating cooling water through a water inlet pipeline, and the raw water pool is also provided with a backwashing water inlet for receiving subsequent backwashing water to enter the raw water pool.

A flocculator: the inside agitator that is equipped with of flocculator, the agitator can make the inside circulation of flocculator waste water rotatory mixing that comes, and the medicament that the charge device of its top intercommunication setting of being convenient for put into reacts with waste water mixing, and the flocculator can set up many sets, this practicality sets up one set. And a sewage submersible pump is also arranged on a pipeline between the flocculator and the raw water pool and used for lifting the waste water in the raw water pool to the flocculator.

A dosing device: the drug adding device comprises a PAC drug adding device, a PAM drug adding device and a bactericide drug adding device, the PAC drug adding device and the PAM drug adding device are used for respectively putting PAC coagulant and PAM coagulant aid into a flocculator below through a metering pump, the two drugs are stirred by a stirrer in the flocculator to react with wastewater, and middle and small particle suspended matters in the wastewater are coagulated into large-particle floccules so as to be precipitated and removed in a subsequent vertical flow inclined tube sedimentation tank. The bactericide adding device puts bactericide into a flocculator below through a metering pump, and the bactericide has the function of removing various bacteria and microorganisms in water.

A vertical flow inclined tube sedimentation tank: a vertical flow inclined tube sedimentation tank is formed by inclined tubes with 60-degree installation inclination angles on a sludge suspension layer, suspended matters, solid matters or floc alum floc formed after adding a medicament in raw water are accumulated into a thin sludge layer on the surface area of the bottom side of each inclined tube, the sludge suspension layer slides under the action of gravity, and then the sludge suspension layer is sunk into a sludge collecting hopper and discharged into a filter press through a sludge discharge pipe for additional treatment or comprehensive utilization. The supernatant liquid gradually rises to the water collecting pipe and is gradually discharged, and can be directly discharged or recycled. The vertical flow inclined tube sedimentation tank reduces hydraulic radius by adding inclined tube or inclined plate filler in the tank, increases the water tank water passing section wet circumference, so that water flow can reduce flow accumulation when the same horizontal flow velocity V is achieved, sedimentation is accelerated, and in addition, the inclined tube or inclined plate can also shorten the particle sedimentation distance, so that sedimentation time is shortened, and sedimentation efficiency is improved.

A middle water tank: the water treated by the vertical flow inclined tube sedimentation tank enters an intermediate water tank which is made of carbon steel anti-corrosion material.

A multi-media filter: the multi-medium filter is used for filtering out impurities such as fine particles, suspended matters, colloid, organic matters and the like brought by raw water. The device comprises equipment, pipelines, valves, a control system, a measuring instrument and the like. Providing all internal and external devices and parts of the filter; the multi-medium filtering device is provided with a program starting and stopping device; the performance, configuration points, quantity and the like of instruments and meters which are matched with the multi-medium filtering system meet the requirement of safe and stable operation of the system.

An activated carbon filter: the activated carbon filter is used for adsorbing residual chlorine which cannot be removed in the filtering process of the multi-media filter, and simultaneously adsorbing pollution impurities such as micromolecular organic matters, colloids and the like leaked from the multi-media filter. The device comprises equipment, pipelines, valves, a control system, a measuring instrument and the like. All the internal and external devices and parts of the filter are provided with a program start-stop device. The performance, configuration points, quantity and the like of the configured instruments and meters meet the requirement of safe and stable operation of the system.

The multi-media filter and the activated carbon filter are provided with backwash water discharge ports, the backwash water discharge ports are provided with discharge pipelines, and the two discharge pipelines are communicated with backwash water inlets arranged in the raw water pool and used for discharging backwash water to the raw water pool for repeated treatment until the backwash water reaches the standard and enters the security filter.

A cartridge filter: the cartridge filter is used for intercepting particles larger than 5 mu brought by the pre-treatment effluent so as to prevent the particles from entering the reverse osmosis system. After being accelerated by the high-pressure pump, the particles can break through related components of the reverse osmosis membrane, so that a large amount of salt is leaked, and an impeller of the high-pressure pump is scratched. The system is provided with 1 set of security filters.

And (3) recovering a reverse osmosis system: the reverse osmosis technology is the most advanced, energy-saving and efficient separation technology at present. The recycling reverse osmosis system comprises a reverse osmosis membrane, and most of soluble salt, colloid, organic matters and microorganisms in water are removed by using the characteristics of the reverse osmosis membrane. The reverse osmosis principle is that under the pressure higher than the osmotic pressure of the solution, the solute in the solution is separated from the solvent by means of the selective interception effect of the reverse osmosis membrane which only allows water molecules to permeate, thereby achieving the purpose of removing pollutants. A first-level high-pressure pump is also arranged on a pipeline between the recovery reverse osmosis system and the cartridge filter.

A first-stage high-pressure pump: the high-pressure pump is used for providing enough water inlet pressure for the reverse osmosis body device and ensuring the normal operation of the reverse osmosis membrane. According to the characteristics of reverse osmosis, a certain driving force is needed to overcome resistance such as osmotic pressure and the like, so that the designed water yield can be ensured.

An electric control system: the electric control system comprises a power supply and a control unit, wherein the power supply is connected with a power distribution box and is in circuit connection with the control unit and the various water pumps; the reverse osmosis device automatically performs regular low-pressure high-flow flushing when the system runs so as to prevent dirt generated on the surface of the reverse osmosis membrane in running from depositing on the surface of the membrane; when the equipment has abnormal conditions and hidden dangers, the equipment is automatically stopped, and the hidden dangers are eliminated and automatically started; therefore, the damage to equipment is greatly reduced, and the running cost is reduced.

The process flow of the utility model is as follows: circulating cooling water waste water gets into the former pond through the water inlet, get into the flocculator by stealthily dirty pump again, the liquid medicine that comes from PAC, PAM and germicide charge device measuring pump coagulates into the large granule floc and flows automatically and gets into the vertical flow pipe settler in this reaction tank, the large granule material in the flocculation and precipitation removal waste water, remaining mud in the bottom of the pool discharges to the pressure filter and handles, the sedimentation tank goes out water and gets into middle water tank, get into recovery reverse osmosis unit after many medium filter, activated carbon filter and safety filter handle, the dense water in the recovery reverse osmosis unit gets into sewage treatment plant, and the product water after through membrane filtration gets into the former water tank recycle of desalination water system.

The above description is only a preferred embodiment of the present invention, and does not limit the present invention in any way. It will be understood by those skilled in the art that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the utility model as defined by the appended claims.

Claims

1. The utility model provides a recirculated cooling water waste water recovery system, its characterized in that, including former pond, reaction precipitation module, the filter module that communicates in proper order, retrieve reverse osmosis unit and the former water tank of desalinized water, the former pond is equipped with the water inlet of switch-on recirculated cooling water, the former water tank of desalinized water is equipped with the delivery port, through the pipeline intercommunication between each block, the reaction precipitation module is equipped with charge device.

2. The recycling system of claim 1, wherein the reaction settling module comprises a flocculator and a vertical flow inclined tube settling tank, the flocculator is respectively communicated with the raw water tank and the vertical flow inclined tube settling tank through pipelines, the vertical flow inclined tube settling tank is communicated with the filtering module, a submersible sewage pump is arranged between the flocculator and the raw water tank through a pipeline, and the chemical adding device is communicated with the flocculator.

3. The recycling system of claim 2, wherein the dosing device comprises a PAC dosing device, a PAM dosing device and a bactericide dosing device, and the PAC dosing device, the PAM dosing device and the bactericide dosing device are all provided with metering pumps.

4. The recycling system of claim 3, wherein an inclined pipe or an inclined plate is arranged inside the vertical flow inclined pipe sedimentation tank, the inclined pipe or the inclined plate is arranged at an inclination angle of 60 degrees, a sludge discharge pipe is arranged at the bottom of the vertical flow inclined pipe sedimentation tank, the sludge discharge pipe is communicated with a filter press, and an intermediate water tank is further communicated between the vertical flow inclined pipe sedimentation tank and the filter module.

5. The recirculated cooling water wastewater recovery system of claim 4, wherein the filtration module comprises a multi-media filter, an activated carbon filter and a cartridge filter in communication with the intermediate tank conduit and the recovery reverse osmosis device conduit in sequence via a conduit.

6. The recycling system for recycling wastewater of claim 5, wherein said multi-media filter and said activated carbon filter are provided with backwash water discharge ports, and both of said backwash water discharge ports are connected to said raw water tank through a pipe.

7. The recycling system for wastewater of claim 6, wherein the pipeline between said cartridge filter and said recycling reverse osmosis device is further provided with a high pressure pump.

8. The recycling system of wastewater of circulating cooling water of claim 7, wherein the recycling reverse osmosis device comprises a reverse osmosis membrane, and the recycling reverse osmosis device is provided with a scale inhibitor dosing device which is provided with a metering pump.

9. The recirculating cooling water wastewater recycling system of claim 8, wherein the recycling reverse osmosis device is further provided with a concentrate discharge port, and the concentrate discharge port is communicated with a sewage treatment system.

10. The recycling system of claim 9, further comprising an electric control system, wherein the electric control system comprises a power supply and a control unit, the power supply is respectively connected with the control unit and each water pump circuit, and the control unit controls the start and stop of each water pump.