CN113929232A

CN113929232A - Tap water hardness softening and waste water recycling system

Info

Publication number: CN113929232A
Application number: CN202111281741.8A
Authority: CN
Inventors: 罗荣煌; 钟梦洁; 王友林; 卢建周; 沈伟辉; 阙添龙
Original assignee: Fujian Zoomking Technology Co ltd
Current assignee: Fujian Zoomking Technology Co ltd
Priority date: 2021-11-01
Filing date: 2021-11-01
Publication date: 2022-01-14

Abstract

The invention relates to the technical field of hard water treatment and utilization systems, in particular to a tap water hardness softening and waste water recycling system. Its technical scheme includes hard water treatment assembly and waste water utilization assembly, hard water treatment assembly includes activated carbon filter, activated carbon filter's output is connected with full-automatic water softener, and full-automatic water softener's output is provided with the softened water tank, the output of softened water tank is provided with the scrubbing tower, the output of scrubbing tower is connected with the waste water holding tank, the output of waste water holding tank is connected with the air supporting groove, the output in air supporting groove is connected with waste water and succeeds the groove. The invention has the advantages of softening hard water, improving the treatment effect of water, reducing the probability of water scaling, reducing energy consumption, prolonging the service life of equipment, reducing the cleaning and maintenance cost, filtering waste water for use, improving the energy utilization rate, avoiding the scaling of a cooling unit, improving the workshop production efficiency, reducing the enterprise cost and being suitable for popularization and application.

Description

Tap water hardness softening and waste water recycling system

Technical Field

The invention relates to the technical field of hard water treatment and utilization systems, in particular to a tap water hardness softening and waste water recycling system.

Background

In factory workshop water, tap water is used after being softened, and because most of the production water system rock tap water of local factories has high water hardness, the total hardness (CaCO 3) is 201mg/L, and the scale formation is serious. The scale formation of water is caused by the fact that water has a high hardness, i.e., the calcium ion content in water is high, and after heating, the water is combined with carbon dioxide in the air to form calcium carbonate which is attached to the inner wall of the container. Contains a large amount of salts formed by calcium (Ca +) and magnesium (Mg +) ions. If the water is directly used as feed water, scale is easily formed on the heating surface of the equipment, so that the efficiency of the equipment is reduced, the loss is increased, the output is reduced, the service life of the equipment is shortened, and the equipment is endangered in serious cases. The closed circulating water system, especially the cooling water system, has long pipelines, less vertical pipes and more transverse pipes, and is circuitous and tortuous. The ice machine unit is seriously scaled to cause equipment blockage, influence the working efficiency of a cooling tower and bring economic loss and energy consumption loss, instruments are frequently maintained and replaced, the consumable material proportion of a workshop is increased, and the normal production operation of the workshop is seriously influenced and great loss is brought; in view of this, we propose a system for hardness softening of tap water and recycling of waste water.

Disclosure of Invention

The purpose of the invention is to solve the problems existing in the background art: the hard water treatment is incomplete, a large amount of dirt is generated in use, equipment is blocked, the working efficiency of a cooling tower is influenced, economic loss and energy consumption loss are brought, instruments are frequently maintained and replaced, the material occupation ratio of a workshop is increased, the production cost is increased, the problem that the normal production of a frame is influenced by maintenance and overhaul is solved, and the tap water hardness softening and waste water recycling system is provided.

The technical scheme of the invention is as follows: a tap water hardness softening and waste water recycling system comprises a hard water treatment assembly and a waste water utilization assembly, wherein the hard water treatment assembly comprises an activated carbon filter, the output end of the activated carbon filter is connected with a full-automatic water softener, the output end of the full-automatic water softener is provided with a soft water tank, the output end of the soft water tank is provided with a washing tower, the output end of the washing tower is connected with a waste water storage tank, the output end of the waste water storage tank is connected with an air flotation tank, and the output end of the air flotation tank is connected with a waste water relay tank;

the waste water utilization assembly comprises a cooling tower, the output end of the cooling tower is connected with a refrigerating unit system, the output end of the refrigerating unit system is connected with an automatic sewage disposal system, the output end of the automatic sewage disposal system is connected with a waste water treatment system, the input end of the waste water treatment system is further connected with a waste water filtering tank, the input end of the waste water filtering tank is connected with a full-automatic filter, and the input end of the full-automatic filter is connected with the output end of a waste water relay tank.

Preferably, the output end of the wastewater filter tank is also connected with the input end of the cooling tower, the output end of the soft water tank is connected with an air-flotation sludge pipe through a lift pump, the air-flotation sludge pipe is connected with the input end of the cooling tower, and the air-flotation sludge pipe is a 50-meter ∅ 75U-PVC pipe.

Preferably, the output of softened water tank is connected with one-level RO through the elevator pump and intakes (pure water system one-level RO), the dense water of one-level RO output, the dense water transmission of one-level RO is to the scrubbing tower, the scrubbing tower is acid-base scrubbing tower.

Preferably, the primary RO water after being treated generates the extra-pure water, the extra-pure water is used for workshop water, and the waste water generated by the workshop water and the waste water generated by the washing tower are stored in the waste water storage tank.

Preferably, the wastewater relay tank is used for filtering trace impurities and floating objects in wastewater, the full-automatic filter adopts a double-tank double-valve full-automatic filter, the wastewater treated by the full-automatic filter is filtered again through a wastewater filtering tank, and the wastewater is pumped into a water inlet pipe of the cooling tower through a pump.

Preferably, the pump parameters are: carrying out thin-wall cultivation at a flow rate of 15m and a lift of 15 m.

Preferably, the water yield of the full-automatic water softener is 20-25m/h, the filtration speed is 20-25m/h, the operation pressure is 0.2-0.45Mpa, and the working temperature is 5-50 ℃.

Preferably, full-automatic filter adopts the quartz sand to filter, activated carbon filter and full-automatic water softener are connected through 10 meters ∅ 75 pipes, full-automatic water softener goes out the water hardness and is less than or equal to 0.03 the mg L.

Compared with the prior art, the invention has the following beneficial technical effects:

1. the full-automatic water softener with double tanks and double valves is additionally arranged in the hard water treatment assembly, is arranged beside the activated carbon filter, is regenerated according to the flow by adopting a touch screen and a PLC system, has the characteristics of high automation degree, low salt consumption and the like, is a preferred device for softening boiler water, adopts computer online monitoring, and realizes the full-automatic operation of continuous operation and regeneration process. The whole process is not interfered by manpower, and the advance or delay of the process operation can not occur. Moreover, the switching of all the procedures is almost synchronously carried out, so that the whole device is accurate, reliable, efficient, water-saving, salt-saving, electricity-saving and labor-saving; the automatic valve has the specific function of automatically adjusting and compensating the residual water amount to keep the optimal point of operation, and the full-automatic water softener has the advantages of simple operation, convenient management and low operation cost, reduces the production cost of a workshop, softens hard water and improves the filtering effect;

2. according to the invention, the full-automatic filter is added in the wastewater treatment assembly to realize the full-automatic operation of continuous operation and backwashing, and the wastewater treated by the full-automatic filter is directly utilized in the cooling tower, so that the wastewater is used after being treated, the resource utilization rate is improved, the possibility of the structure of the cooling tower is reduced, the cleaning steps and the cleaning cost are reduced, the normal operation of workshop production is facilitated, and the generation of consumables is reduced;

3. the invention has the advantages of softening hard water, improving the water treatment effect, reducing the probability of water scaling, improving the use effect of equipment, reducing energy consumption, prolonging the service life of the equipment, ensuring normal water supply in a workshop, reducing the cleaning and maintenance cost, improving the energy utilization rate, avoiding scaling of a cooling unit, improving the production efficiency of the workshop and reducing the enterprise cost, and is suitable for popularization and use.

Drawings

FIG. 1 shows a schematic flow chart of an embodiment of the present invention.

Detailed Description

The technical solution of the present invention is further explained with reference to the accompanying drawings and specific embodiments.

Example one

As shown in fig. 1, the tap water hardness softening and wastewater recycling system provided by the invention comprises a hard water treatment assembly and a wastewater recycling assembly, wherein the hard water treatment assembly comprises an activated carbon filter, the output end of the activated carbon filter is connected with a full-automatic water softener, the output end of the full-automatic water softener is provided with a soft water tank, the output end of the soft water tank is provided with a washing tower, the output end of the washing tower is connected with a wastewater storage tank, the output end of the wastewater storage tank is connected with an air flotation tank, and the output end of the air flotation tank is connected with a wastewater relay tank;

the waste water utilization assembly comprises a cooling tower, the output end of the cooling tower is connected with a refrigerating unit system, the output end of the refrigerating unit system is connected with an automatic sewage disposal system, the output end of the automatic sewage disposal system is connected with a waste water treatment system, the input end of the waste water treatment system is further connected with a waste water filter box, the input end of the waste water filter box is connected with a full-automatic filter, and the input end of the full-automatic filter is connected with the output end of a waste water relay tank.

In the embodiment, the output end of the wastewater filter tank is also connected with the input end of the cooling tower, the output end of the soft water tank is connected with an air-flotation sludge pipe through a lift pump, the air-flotation sludge pipe is connected with the input end of the cooling tower, and the air-flotation sludge pipe is a 50-meter ∅ 75U-PVC pipe; the output end of the soft water tank is connected with primary RO (reverse osmosis) inlet water (primary RO of a pure water system) through a lift pump, the primary RO inlet water outputs primary RO concentrated water, the primary RO concentrated water is transmitted to a washing tower, and the washing tower is an acid-base washing tower; after the primary RO water inlet treatment, generating extra-pure water, wherein the extra-pure water is used for workshop water, and waste water generated by the workshop water and waste water generated by the washing tower are stored in a waste water storage tank; the waste water relay tank is used for filtering trace impurities and floating objects in the waste water, the full-automatic filter adopts a double-tank double-valve full-automatic filter, the waste water treated by the full-automatic filter is filtered again through a waste water filter tank, and the waste water is pumped into a cooling tower water inlet pipe through a pump; the pump parameters were: carrying out 15m high-speed dry distillation on the seeds, carrying out 15m high-lift dry distillation on the seeds, carrying out 20-25m high-speed dry distillation on the seeds, carrying out 0.2-0.45Mpa high-pressure dry distillation on the seeds, carrying out 5-50 ℃ high-speed dry distillation on the seeds, carrying out quartz sand filtration on a full-automatic water softener, connecting the activated carbon filter and the full-automatic water softener through a 10 m ∅ 75 pipe, and carrying out full-automatic water softener on the seeds, wherein the water outlet hardness is less than or equal to 0.03 mg/L.

In the embodiment, tap water filters harmful substances through an activated carbon filter, the hardness of the tap water is reduced to be less than or equal to 0.03 mg/L through a full-automatic water softener, the working principle of the full-automatic water softener is that strong-acid styrene cation resin is filled in an exchange column to soften the tap water, and the flow direction and the size of the tap water are switched by closing a valve, so that the softening of the raw water and the loosening, regeneration, replacement and cleaning of the resin are completed. Salt (industrial salt) solution stored in a salt tank is sucked into a resin tank through the negative pressure action of a jet device, diluted in the resin tank and subjected to resin to realize countercurrent regeneration, waste liquid is discharged through a water outlet, soft water meeting the standard is conveyed into a soft water tank, the soft water in the soft water tank is divided into two paths by a lifting pump, one path of the soft water is conveyed to a first-stage RO of a pure water system, the other path of the soft water is conveyed to a cooling tower by using an air flotation sludge pipe, first-stage RO concentrated water after passing through a first-stage RO treatment system is input into a washing tower for secondary treatment, ultra-pure water obtained by the first-stage RO treatment is used for water for a production workshop, waste water generated in the production workshop and water treated by the washing tower are stored in a waste water storage tank, trace impurities and floating objects in the waste water are filtered, the cleaned water only has a little faintly acid and can be used as make-up water for cooling water of an ice maker, also can mix with soft water and get up as ice maker cooling water, the scale deposit is more difficult to equipment like this, and full automatic filtration ware is with the water further filtration processing in the waste water relaying groove for waste water utilization is safer, avoids the incrustation scale to produce, avoids refrigerating unit the phenomenon of scale deposit to appear, improves waste water utilization effect.

The above embodiments are merely some preferred embodiments of the present invention, and those skilled in the art can make various alternative modifications and combinations of the above embodiments based on the technical solution of the present invention and the related teaching of the above embodiments.

Claims

1. The utility model provides a tap water hardness softens and waste water reuse system, includes hard water treatment assembly and waste water utilization assembly, its characterized in that: the hard water treatment assembly comprises an activated carbon filter, the output end of the activated carbon filter is connected with a full-automatic water softener, the output end of the full-automatic water softener is provided with a soft water tank, the output end of the soft water tank is provided with a washing tower, the output end of the washing tower is connected with a wastewater storage tank, the output end of the wastewater storage tank is connected with an air flotation tank, and the output end of the air flotation tank is connected with a wastewater relay tank;

2. The tap water hardness softening and wastewater recycling system as claimed in claim 1, wherein the output end of the wastewater filter tank is further connected with the input end of the cooling tower, the output end of the soft water tank is connected with an air floatation sludge pipe through a lift pump, the air floatation sludge pipe is connected with the input end of the cooling tower, and the air floatation sludge pipe is a 50 m ∅ 75U-PVC pipe.

3. The tap water hardness softening and wastewater recycling system according to claim 1, wherein the output end of the soft water tank is connected with a first-stage RO inlet water (first-stage RO of a pure water system) through a lift pump, the first-stage RO inlet water outputs a first-stage RO concentrated water, and the first-stage RO concentrated water is transmitted to a washing tower, and the washing tower is an acid-base washing tower.

4. The system for hardness softening of tap water and recycling waste water according to claim 3, wherein the primary RO water is treated to generate extra pure water, the extra pure water is used for plant water, and waste water generated by the plant water and waste water generated by the washing tower are stored in the waste water storage tank.

5. The tap water hardness softening and waste water recycling system according to claim 1, wherein the waste water relay tank is used for filtering trace impurities and floating objects in the waste water, the full-automatic filter adopts a double-tank double-valve full-automatic filter, the waste water treated by the full-automatic filter is filtered again through a waste water filtering tank, and the waste water is pumped into a water inlet pipe of a cooling tower through a pump.

6. The system for hardness softening of tap water and recycling waste water according to claim 5, wherein the pump parameters are: carrying out thin-wall cultivation at a flow rate of 15m and a lift of 15 m.

7. The tap water hardness softening and wastewater recycling system of claim 1, wherein the full-automatic water softener has a water yield of 20-25m/h, a filtration rate of 20-25m/h, an operating pressure of 0.2-0.45Mpa and an operating temperature of 5-50 ℃.

8. The system of claim 1, wherein the full-automatic filter is used for filtering with quartz sand, the activated carbon filter and the full-automatic water softener are connected through a pipe of 10 m ∅ 75, and the hardness of the outlet water of the full-automatic water softener is less than or equal to 0.03 mg/L.