Integrated dechlorination and softening equipment

By integrating dechlorination and softening equipment, combined with multi-way valves, regeneration systems, and filtration systems, the problems of large footprint, cumbersome operation, and high maintenance costs of existing water treatment equipment are solved, achieving efficient and economical water treatment suitable for the pharmaceutical and food and beverage industries.

CN224147889UActive Publication Date: 2026-04-21SHANGHAI CHONGYANG WATER TREATMENT EQUIP CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANGHAI CHONGYANG WATER TREATMENT EQUIP CO LTD
Filing Date
2025-05-19
Publication Date
2026-04-21

AI Technical Summary

Technical Problem

Existing water treatment processes suffer from problems such as large equipment footprint, cumbersome operation, high maintenance costs, and the need for regular pasteurization, resulting in uneconomical practices.

Method used

It adopts an integrated dechlorination and softening equipment, which includes a multi-way valve, a regeneration system and a filtration system. It integrates a softening layer and a dechlorination layer, and uses regenerable softening resin and activated carbon filter media for water treatment, simplifying the process and reducing the number of equipment.

Benefits of technology

It significantly reduces footprint, lowers maintenance requirements, improves water treatment efficiency and consistency, and reduces operating costs. It is suitable for locations with limited space, and particularly improves water quality stability in the pharmaceutical and food and beverage industries.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides integrated dechlorination and softening equipment. The integrated dechlorination and softening equipment is characterized by comprising a multi-way valve, a regeneration system and a filtering system, wherein the multi-way valve is in butt joint with the water inlet pipe, the water outlet pipe and the filtering system, and mutual channel switching is achieved; the filtering system comprises a softening layer and a dechlorination layer; the regeneration system is in butt joint with the filtering system and conducts regeneration treatment on the softening layer. The system can remove free chlorine in water and soften water at the same time, greatly simplifies the water treatment process, shortens the treatment time, saves the occupied space, and significantly reduces the maintenance demand. The innovation not only powerfully deals with current environmental challenges, but also paves a way for future water treatment and process solutions.
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Description

Technical Field

[0001] This utility model relates to water treatment systems, specifically to an integrated dechlorination and softening device. Background Technology

[0002] Existing water treatment processes have the following drawbacks.

[0003] Process 1: A plate heat exchanger, activated carbon filter, and softening filter are used in two separate tanks for processing. The activated carbon is sterilized by regular pasteurization.

[0004] Its disadvantages are: (1) It requires regular pasteurization, which increases the cost of input; (2) It requires industrial steam as the heat medium; (3) The sterilization time is relatively long and the equipment needs to be shut down for operation; (4) The equipment occupies a relatively large area; (5) The operation is relatively complicated.

[0005] Process 2: Plate heat exchanger + activated carbon disinfection + scale inhibitor dosing device

[0006] Its disadvantages are: (1) Activated carbon needs to be pasteurized regularly, scale inhibitors need to be equipped with monitoring devices, and the dosage changes with the monitoring data; (2) The increase in monitoring equipment increases the investment cost; (3) The operating cost is relatively high; (4) The operation is relatively complicated; (5) The equipment occupies a relatively large area.

[0007] Therefore, from the perspective of existing technology, there are problems of inconvenience and uneconomicality. Utility Model Content

[0008] This invention aims to overcome the aforementioned shortcomings and provide a highly integrated and more efficient device. Its included dechlorination and softening equipment can simultaneously remove free chlorine and soften water, significantly simplifying the water treatment process, shortening treatment time, saving space, and substantially reducing maintenance requirements. This innovation not only effectively addresses current environmental challenges but also paves the way for future water treatment and process solutions.

[0009] This utility model provides an integrated dechlorination and softening device, characterized in that it includes a multi-way valve, a regeneration system, and a filtration system;

[0010] The aforementioned multi-way valve connects to the inlet pipe, outlet pipe, and filtration system, and enables switching between their respective pathways.

[0011] The inlet and outlet pipes here include the inlet and outlet of water to be treated, and / or the inlet and outlet of reclaimed water.

[0012] The aforementioned filtration system includes a softening layer and a dechlorination layer;

[0013] The aforementioned regeneration system is connected to the filtration system to regenerate the softening layer.

[0014] Furthermore, the integrated dechlorination and softening equipment provided by this utility model is further characterized in that:

[0015] The softening layer mentioned above is a recycled softening resin.

[0016] Furthermore, the integrated dechlorination and softening equipment provided by this utility model is further characterized in that:

[0017] The dechlorination layer described above is a filter media containing activated carbon.

[0018] Furthermore, the integrated dechlorination and softening equipment provided by this utility model is further characterized in that:

[0019] The softening layer is disposed on top of the dechlorination layer.

[0020] Furthermore, the integrated dechlorination and softening equipment provided by this utility model is further characterized in that:

[0021] The aforementioned filtration system also includes an anti-clogging layer located at the bottom layer.

[0022] Furthermore, the integrated dechlorination and softening equipment provided by this utility model is further characterized in that:

[0023] The aforementioned regeneration system includes a brine regeneration pipeline and a cleaning and discharge pipeline;

[0024] The aforementioned salt absorption and regeneration pipeline connects to the regeneration water tank and the filtration system, delivering the saturated brine from the regeneration water tank into the filtration system;

[0025] The aforementioned cleaning and discharge pipes are connected to a filtration system to output the cleaned liquid.

[0026] Furthermore, the integrated dechlorination and softening equipment provided by this utility model is further characterized in that:

[0027] The aforementioned regeneration system also disinfects the filtration system.

[0028] Furthermore, the integrated dechlorination and softening equipment provided by this utility model is further characterized in that:

[0029] It also includes inlet water pressure monitoring equipment;

[0030] The aforementioned inlet pressure monitoring equipment is installed on the connecting pipe between the inlet and the filtration system to monitor and control the water flow in the pipeline.

[0031] Furthermore, the integrated dechlorination and softening equipment provided by this utility model is further characterized in that:

[0032] It also includes water pressure monitoring equipment;

[0033] The aforementioned outlet pressure monitoring equipment is installed on the connecting pipe between the filtration system and the outlet end to monitor and control the water flow in the pipeline.

[0034] Furthermore, the integrated dechlorination and softening equipment provided by this utility model is further characterized in that:

[0035] The aforementioned filtration system and the connecting pipe to the outlet are also equipped with an outlet sampling valve.

[0036] The function and effects of this invention:

[0037] 1. Space efficiency: By combining two key processing steps into one unit, the footprint required for water treatment infrastructure is significantly reduced, making it particularly suitable for sites with limited space.

[0038] II. Cost-effectiveness: Single-container systems eliminate the need for multiple water tanks and piping, reducing upfront capital expenditure. Furthermore, maintenance costs are lower, energy consumption is concentrated in a single unit, simplifying energy management and achieving long-term cost-effectiveness.

[0039] 3. Simplified maintenance: Maintenance of individual systems is simpler, and media replacement is also easier, which reduces downtime and improves overall operational efficiency.

[0040] IV. Improved Water Treatment Consistency: The adjacent carbon and resin layers within the system ensure consistent water treatment and reduce the risk of water quality fluctuations. Simultaneously, it promotes the integration of brine regeneration and brine disinfection solutions, eliminating the need for additional disinfection measures and significantly improving the safety and efficiency of the pharmaceutical water system pretreatment process. This is particularly beneficial for industries where water purity is critical. For example, in the pharmaceutical field, the presence of chlorine or hard water can impair product quality and violate compliance standards. Similarly, in the food and beverage industry, the taste, appearance, and safety of products are affected by impurities in the water. Therefore, adding additional water can introduce risks. This product avoids this problem. Attached Figure Description

[0041] Figure 1 A schematic diagram of an integrated dechlorination and softening device provided in this embodiment; Detailed Implementation

[0042] This invention can be implemented in many ways and has various embodiments, therefore specific embodiments are illustrated and described in the accompanying drawings. However, this is not intended to limit the invention to specific implementations, but should be understood to include all modifications, equivalents, and even substitutions that fall within the spirit and technical scope of this invention.

[0043] like Figure 1 As shown, this embodiment provides an integrated dechlorination and softening device, which includes an inlet water pressure monitoring device 01 arranged along the water flow direction, a dechlorination and softening functional unit, an outlet water sampling valve 04, and an outlet water pressure monitoring device 03;

[0044] Among them, the inlet water pressure monitoring device 01 is a pre-filter pressure gauge. It is installed on the connecting pipe between the inlet end (i.e., the water inlet) and the dechlorination and softening functional section to monitor and control the water flow in the pipeline.

[0045] The outlet pressure monitoring device 03 is a post-filter pressure gauge used to detect the filter media, thereby determining whether it needs to be replaced or if there is any blockage. It is installed on the connecting pipe between the dechlorination and softening functional section and the outlet (i.e., the water outlet) to monitor and control the water flow in the pipeline.

[0046] The outlet water sampling valve 04 is installed on the connecting pipe between the dechlorination and softening functional unit and the outlet water end for sampling and testing at any time.

[0047] The dechlorination and softening functional unit includes a multi-way valve 02, a regeneration system, and a filtration system 05;

[0048] The multi-way valve 02 can be a commercially available time-regenerating type controlled by a microcontroller, operating fully automatically. That is, by setting a time, the equipment automatically performs backwashing, salt absorption regeneration, and forward washing, with automatic control of the process nodes. It connects to the inlet pipe, outlet pipe, and filtration system, enabling switching between these pathways. Specifically, the multi-way valve 02 has four inlets / outlets (1, 2, 3, and 4) at the water treatment end, which respectively connect to the inlet pipe via the inlet pressure monitoring device 01, the inlet of the filtration system, the outlet pipe connected to the outlet via the outlet pressure monitoring device 03, and the outlet of the filtration system. This forms a fluid path for the flowing water to undergo water softening, dechlorination, and other purification processes through the filtration system. The multi-way valve 02 can also have two inlets / outlets at the regenerated water end, respectively connecting to the salt absorption regeneration pipe 11 and the cleaning discharge pipe 10, thus forming a regenerated water path during the system's regeneration process.

[0049] Depending on the actual needs of use, the regeneration system can also be incorporated into a multi-way valve for control.

[0050] The filtration system 05 includes a softening layer 06, a dechlorination layer 07, and an anti-clogging layer 08;

[0051] The softening layer 06 is a regenerable softening resin, specifically a sodium-type resin. It uses sodium ions to exchange calcium and magnesium ions in the water, thereby removing calcium and magnesium ions and achieving the softening function. It is regenerated using industrial salt NaCl. The purpose of regeneration is to use the sodium ions in NaCl to replace calcium and magnesium ions.

[0052] The dechlorination layer 07 is a filter media containing activated carbon. Specifically, it is a coconut shell activated carbon filter media for dechlorination, which removes chlorine ions from the water by adsorbing them.

[0053] The anti-clogging layer 08 is made of fine quartz sand, used to protect the lower water distributor and prevent excessively fine filter media from clogging it and affecting water flow. The specific particle size of the quartz sand can be set according to the filter outlet.

[0054] The regeneration system, connected to the filtration system, regenerates the softened layer. It includes a brine regeneration pipe 11 and a cleaning discharge pipe 10; the filtration system here can be a direct connection to the filtration system or a connection to the filtration system via a multi-way valve.

[0055] The salt absorption and regeneration pipe 11 connects to the regeneration water tank 09 and the filtration system 05, and transports the saturated brine in the regeneration water tank into the filtration system.

[0056] The cleaning discharge pipe 10 is the outlet for the regenerated wastewater, which is connected to the filtration system to output the cleaned liquid.

[0057] The normal working procedure of the above equipment is as follows:

[0058] Inlet – Through 01 Inlet pressure test – Enters the tank multi-way valve – 02 Enters the softening resin layer – 06 Enters the activated carbon filter layer – 07 Enters the quartz sand – 08 Through 03 Outlet to the next stage – 04 Outlet water quality test – Outlet water proceeds to the next stage.

[0059] The regeneration process for the above equipment is as follows:

[0060] 09 Saturated brine in the salt tank --- 11 Salt suction pipe --- Enters the tank multi-way valve 02 Enters the softening resin layer 06 Enters the activated carbon filter layer 07 Enters the quartz sand 08 --- Discharged through the 10 cleaning discharge pipe, regeneration time is 30 minutes.

[0061] The technology and effects of this embodiment:

[0062] In the filtration system of this embodiment, one layer uses high-quality activated carbon to adsorb free chlorine and organic compounds in the water, while the other layer is equipped with a specially formulated ion exchange resin to replace calcium and magnesium ions. The water flows through a single container, undergoing softening and dechlorination treatments sequentially, ensuring stable and continuous effluent quality.

[0063] In water softening systems, regenerating the softener resin with brine is crucial. It removes hardness ions such as calcium and magnesium from the resin surface and fills the active sites with sodium ions. During regeneration, the activated carbon also receives waste brine and unused brine, as well as the resulting osmotic shock conditions, thus disinfecting the system.

[0064] While the foregoing description has focused on embodiments, these are merely illustrative and do not limit the scope of the invention. Those skilled in the art will understand that various modifications and applications not illustrated above can be made without departing from the essential characteristics of the embodiments. For example, the constituent elements specifically shown in the embodiments can be implemented through modifications. Furthermore, various differences related to such modifications and applications should be interpreted as including within the scope of the invention as defined in the appended claims.

Claims

1. An integrated dechlorination and softening apparatus, characterized by: It includes a multi-way valve, a regeneration system, and a filtration system; The multi-way valve connects to the inlet pipe, the outlet pipe, and the filtration system, and enables switching between their respective pathways. The filtration system includes a softening layer and a dechlorination layer; The regeneration system is connected to the filtration system to regenerate the softening layer.

2. The integrated dechlorination and softening equipment as described in claim 1, characterized in that: The softening layer is made of recycled softening resin.

3. The integrated dechlorination and softening equipment as described in claim 1, characterized in that: The dechlorination layer is a filter material containing activated carbon.

4. The integrated dechlorination and softening equipment as described in claim 1, characterized in that: The softening layer is disposed on top of the dechlorination layer.

5. The integrated dechlorination and softening equipment as described in claim 1, characterized in that: The filtration system also includes an anti-clogging layer at the bottom.

6. The integrated dechlorination and softening equipment as described in claim 1, characterized in that: The regeneration system includes a brine regeneration pipeline and a cleaning discharge pipeline; The salt absorption and regeneration pipeline connects to the regeneration water tank and the filtration system, and transports the saturated brine in the regeneration water tank into the filtration system. The cleaning discharge pipe is connected to the filtration system and outputs the cleaned liquid.

7. The integrated dechlorination and softening equipment as described in claim 1, characterized in that: The regeneration system also disinfects the filtration system.

8. The integrated dechlorination and softening equipment as described in claim 1, characterized in that: It also includes inlet water pressure monitoring equipment; The inlet pressure monitoring device is installed on the connecting pipe between the inlet and the filtration system to monitor and control the water flow in the pipeline.

9. The integrated dechlorination and softening equipment as described in claim 1, characterized in that: It also includes water pressure monitoring equipment; The outlet pressure monitoring device is installed on the connecting pipe between the filtration system and the outlet end to monitor and control the water flow in the pipeline.

10. An integrated dechlorination and softening device as described in claim 9, characterized in that: A water sampling valve is also installed on the connecting pipe between the filtration system and the water outlet.