A kind of primary reverse osmosis reclaimed water reuse equipment with evaporator

Abstract

The utility model belongs to water treatment equipment technical field more specifically relates to a kind of reverse osmosis water reuse equipment with evaporator, including water reuse pond, several pre-filters, multiple parallel ultrafilters, intermediate water tank, booster pump, reverse osmosis membrane group, pure water tank and MBR evaporator equipment, MBR evaporator equipment includes evaporator, forced circulation pump, steam separator, first delivery pump and crystallizing tank, by the reasonable configuration multiple pre-filters, can effectively remove suspended solids in water, colloid, organic matter, peculiar smell and pigment and other impurities, and soften water quality;Multiple parallel ultrafilters and reverse osmosis filter design, not only improve the processing capacity of equipment, also enhance the stability of system;Through the depth treatment of MBR evaporator to concentrated water, can maximize the recovery of water resources, reduces the discharge of concentrated water.

Description

Technical Field

[0001] This utility model belongs to the technical field of water treatment equipment, and more specifically relates to a single-stage reverse osmosis greywater reuse device with an evaporator. Background Technology

[0002] Traditional greywater treatment equipment often has some shortcomings in the treatment process. For example, the filtration precision of some equipment is not high enough, resulting in the treated water quality failing to meet high water quality standards. It cannot effectively remove fine impurities, microorganisms, and some dissolved pollutants from the water, thus limiting the scope of reuse. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides a single-stage reverse osmosis greywater reuse device with an evaporator.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a primary reverse osmosis greywater reuse device with an evaporator, comprising a greywater reuse tank, several pre-filters, multiple parallel ultrafiltration units, an intermediate water tank, a booster pump, a reverse osmosis membrane module, a pure water tank, and an MBR evaporator. Multiple parallel ultrafiltration units are connected to the intermediate water tank, and the filtered water enters the intermediate water tank. The booster pump is located between the intermediate water tank and the reverse osmosis membrane module. The pure water outlet of the reverse osmosis membrane module is connected to the pure water tank. The MBR evaporator includes an evaporator, a forced circulation pump, a steam separator, a first delivery pump, and a crystallization tank. The steam inlet of the evaporator is connected to the steam outlet and steam replenishment pipe of the steam separator. The material outlet of the evaporator is connected to the inlet of the booster pump. The waste outlet of the evaporator is connected to the steam separator. The material inlet of the evaporator is connected to the forced circulation pump. The forced circulation pump is connected to the circulation outlet on the steam separator. The concentrate outlet of the reverse osmosis membrane module is connected to the forced circulation pump. The waste outlet of the steam separator is connected to the first delivery pump, which discharges the crystallization wastewater into the crystallization tank.

[0005] Furthermore, the plurality of pre-filters include a multi-media filter, a softening filter, and a precision filter connected in sequence. The wastewater outlets of the multi-media filter and the softening filter are connected to a sewage discharge pipe, and a softening brine tank is provided on one side of the softening filter.

[0006] Furthermore, the reverse osmosis membrane module includes at least three reverse osmosis filters connected in parallel. The inlet of each reverse osmosis filter is connected to a booster pump, the pure water outlet of each reverse osmosis filter is connected to a pure water tank, and the concentrate outlet is connected to a forced circulation pump.

[0007] Furthermore, a bypass pipe is provided between the inlet and outlet of the booster pump, and a bypass valve is provided on the bypass pipe.

[0008] Furthermore, it also includes a second delivery pump connected to the pure water tank and a raw water pump connected to the greywater reuse tank.

[0009] Furthermore, both the intermediate water tank and the pure water tank are equipped with liquid level sensors.

[0010] Compared with the prior art, the beneficial effects of this utility model are: by reasonably configuring multiple pre-filters, it can effectively remove impurities such as suspended solids, colloids, organic matter, odors and pigments from the water and soften the water quality; the design of multiple parallel ultrafiltration and reverse osmosis filters not only improves the processing capacity of the equipment, but also enhances the stability of the system; through the deep treatment of concentrated water by the MBR evaporator, water resources can be recovered to the maximum extent and the amount of concentrated water discharged can be reduced. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of the first-stage reverse osmosis greywater reuse equipment with an evaporator according to this utility model.

[0012] Figure reference numerals: 1. Reclaimed water tank; 2. Ultrafiltration unit; 3. Intermediate water tank; 4. Booster pump; 5. Reverse osmosis membrane module; 6. Pure water tank; 7. Evaporator; 8. Forced circulation pump; 9. Steam separator; 10. First transfer pump; 11. Crystallization tank; 12. Multi-media filter; 13. Softening filter; 14. Precision filter; 15. Softening brine tank; 16. Bypass pipe; 17. Bypass valve; 18. Second transfer pump; 19. Raw water pump; 20. Liquid level sensor. Detailed Implementation

[0013] In the description of this utility model, it should be noted that the directional terms such as "center", "horizontal (X)", "longitudinal (Y)", "vertical (Z)", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", and "counterclockwise" indicate the orientation and positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. They should not be construed as limiting the specific protection scope of this utility model.

[0014] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features. Thus, the use of "first" and "second" to define a feature may explicitly or implicitly include one or more of that feature. In the description of this utility model, "several" or "a number" means two or more, unless otherwise explicitly specified.

[0015] Reference Figure 1 The present invention will be further described below.

[0016] A single-stage reverse osmosis (RO) greywater reuse system with an evaporator includes a greywater reuse tank 1, several pre-filters, multiple parallel ultrafiltration units 2, an intermediate water tank 3, a booster pump 4, a reverse osmosis membrane module 5, a pure water tank 6, and an MBR evaporator. The multiple parallel ultrafiltration units 2 are connected to the intermediate water tank 3, and the filtered water enters the intermediate water tank 3. The booster pump 4 is located between the intermediate water tank 3 and the reverse osmosis membrane module 5. The pure water outlet of the reverse osmosis membrane module 5 is connected to the pure water tank 6. The MBR evaporator includes an evaporator 7, a forced circulation pump 8, and a steam separator. The system includes a steam separator 9, a first transfer pump 10, and a crystallization tank 11. The steam inlet of the evaporator 7 is connected to the steam outlet and steam replenishment pipe of the steam separator 9. The material outlet of the evaporator 7 is connected to the inlet of the booster pump 4. The waste outlet of the evaporator 7 is connected to the steam separator 9. The material inlet of the evaporator 7 is connected to the forced circulation pump 8. The forced circulation pump 8 is connected to the circulation outlet on the steam separator 9. The concentrate outlet of the reverse osmosis membrane module 5 is connected to the forced circulation pump 8. The waste outlet of the steam separator 9 is connected to the first transfer pump 10, discharging the crystallization wastewater into the crystallization tank 11. Figure 1 As shown, in this preferred embodiment, the plurality of pre-filters include a multi-media filter 12, a softening filter 13, and a precision filter 14 connected in sequence. The wastewater outlets of the multi-media filter 12 and the softening filter 13 are connected to a sewage discharge pipe, and a softening brine tank 15 is provided on one side of the softening filter 13. Figure 1 As shown, in this preferred embodiment, the reverse osmosis membrane module 5 includes at least three reverse osmosis filters connected in parallel. The inlet of each reverse osmosis filter is connected to a booster pump 4, the pure water outlet of each reverse osmosis filter is connected to a pure water tank 6, and the concentrate outlet is connected to a forced circulation pump 8. Figure 1 As shown, in this preferred embodiment, a bypass pipe 16 is provided between the inlet and outlet of the booster pump 4, and a bypass valve 17 is provided on the bypass pipe 16. Specifically, when the pressure is too high, the bypass valve 17 can be opened to allow the high-pressure water at the outlet of the booster pump 4 to flow back and reduce the pressure. Figure 1 As shown, in this preferred embodiment, it also includes a second delivery pump 18 connected to the pure water tank 6 and a raw water pump 19 connected to the greywater reuse tank 1. Figure 1 As shown, in this preferred embodiment, both the intermediate water tank 3 and the pure water tank 6 are equipped with liquid level sensors 20. Figure 1As shown, the treated wastewater is collected in the reclaimed water tank 1. The treated water is then pumped by the raw water pump 19 to several pre-filters, where it passes through a multi-media filter 12, a softening filter 13, and a precision filter 14 to form primary filtered water. This primary filtered water then directly enters multiple parallel ultrafiltration filters 2 to produce secondary filtered water, which is then collected in the intermediate water tank 3. The secondary filtered water in the intermediate water tank 3 is then pumped by the booster pump 4 into multiple parallel reverse osmosis membrane filters. The resulting pure water is collected in the pure water tank 6, while the concentrated water is pumped by the forced circulation pump 8. The water enters the evaporator 7; through membrane separation and high-temperature and high-pressure heat collection in the evaporator 7, the high-concentration water is evaporated and concentrated. The resulting distilled water enters between the intermediate water tank 3 and the booster pump 4, and after mixing with the secondary filtered water transported by the intermediate water tank 3, it enters the reverse osmosis filter. The concentrated water after evaporation and concentration in the evaporator 7 enters the steam separator 9 to separate some of the evaporated steam, further concentrating the water. Finally, it is discharged into the crystallization tank 11 for crystallization, while the separated steam re-enters the evaporator 7 for use. The pure water in the pure water tank 6 can be transported to the water-using equipment through the second transfer pump 18.

[0017] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A single-stage reverse osmosis greywater reuse device with an evaporator, characterized in that: The system includes a greywater reuse tank, several pre-filters, multiple parallel ultrafiltration units, an intermediate water tank, a booster pump, a reverse osmosis membrane module, a pure water tank, and an MBR evaporator. Multiple parallel ultrafiltration units are connected to the intermediate water tank, and filtered water enters the intermediate water tank. The booster pump is located between the intermediate water tank and the reverse osmosis membrane module. The pure water outlet of the reverse osmosis membrane module is connected to the pure water tank. The MBR evaporator includes an evaporator, a forced circulation pump, a steam separator, a first delivery pump, and a crystallization tank. The steam inlet of the evaporator is connected to the steam outlet and steam replenishment pipeline of the steam separator. The material outlet of the evaporator is connected to the inlet of the booster pump. The waste outlet of the evaporator is connected to the steam separator. The material inlet of the evaporator is connected to the forced circulation pump, which is connected to the circulation outlet on the steam separator. The concentrate outlet of the reverse osmosis membrane module is connected to the forced circulation pump. The waste outlet of the steam separator is connected to the first delivery pump, which discharges the crystallization wastewater into the crystallization tank.

2. The primary reverse osmosis wastewater reuse equipment with an evaporator according to claim 1, characterized in that: The plurality of pre-filters include a multi-media filter, a softening filter and a precision filter connected in sequence. The wastewater outlets of the multi-media filter and the softening filter are connected to a sewage discharge pipe. A softening brine tank is provided on one side of the softening filter.

3. The single-stage reverse osmosis wastewater reuse equipment with an evaporator according to claim 1, characterized in that: The reverse osmosis membrane module includes at least three reverse osmosis filters connected in parallel. The inlet of each reverse osmosis filter is connected to a booster pump, the pure water outlet of each reverse osmosis filter is connected to a pure water tank, and the concentrate outlet is connected to a forced circulation pump.

4. The evaporator-equipped primary reverse osmosis water reuse apparatus according to claim 1, characterized by: A bypass pipe is provided between the inlet and outlet of the booster pump, and a bypass valve is provided on the bypass pipe.

5. The single-stage reverse osmosis wastewater reuse equipment with an evaporator according to claim 1, characterized in that: It also includes a second delivery pump connected to the pure water tank and a raw water pump connected to the greywater reuse tank.

6. The single-stage reverse osmosis wastewater reuse equipment with an evaporator according to claim 1, characterized in that: Both the intermediate water tank and the pure water tank are equipped with liquid level sensors.

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