Reverse osmosis (RO) chemical washing tank chemical washing backflow system

Abstract

The utility model discloses a reverse osmosis (RO) chemical washing tank chemical washing backflow system which comprises a control end, a waste water adjusting pool, a reaction tank, a concentrated water tank and a module, the waste water adjusting pool, the reaction tank and the concentrated water tank are sequentially connected through pipelines, the concentrated water tank is communicated with the input end of the module through a circulation pipeline, and the output end of the module conveys water to the concentrated water tank through a backflow pipeline. The module is provided with a chemical washing system. According to the chemical washing backflow system of the RO chemical washing tank, through mutual allocation of the constant-temperature interlayer heating tank and the chemical washing liquid interlayer heating tank and temperature detection of the temperature sensor, the control end can control the temperature and the water supply proportion of the constant-temperature interlayer heating tank and the chemical washing liquid interlayer heating tank through the temperature in the circulation process; therefore, the temperature of the chemical washing liquid in the chemical washing process is adjusted, the temperature of the chemical washing liquid is kept between minus 20 DEG C, and a better washing effect is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a water treatment technical field, concretely is a kind of RO chemical washing tank chemical washing backflow system. BACKGROUND

[0002] RO chemical washing tank chemical washing refers to the chemical cleaning process of reverse osmosis (RO) system, aims at removing the pollutants on the membrane surface to restore its performance, and reverse osmosis is a membrane separation operation driven by pressure difference to separate solvent from solution, which is widely used in water treatment field to remove impurities such as salt, organic matter, bacteria and viruses in water, and produce high-quality pure water, and the RO system is mainly composed of high-pressure pump, reverse osmosis membrane assembly, pipeline and monitoring and control instruments, etc., and in the running process, the impurities in water will gradually deposit on the surface of reverse osmosis membrane, resulting in the performance decline of membrane, such as the decrease of water production and the decrease of desalination rate.

[0003] 102 concentrated water RO online chemical washing, usually chemical washing liquid water temperature is better after 30-35 degrees, and the temperature of the current chemical washing liquid is difficult to control, mainly for two reasons.

[0004] One is that with the circulation of cleaning chemical washing liquid, its temperature cannot be controlled, and the temperature will be gradually lost and lowered during the cleaning process, affecting the cleaning effect.

[0005] The second is that acid will produce certain heat after meeting water during the cleaning process, resulting in high initial temperature, which is difficult to control, and cannot be maintained for a long time during the cleaning process, and the temperature of the circulating cleaning chemical washing liquid gradually decreases and cannot be constant, so the cleaning effect cannot be optimal, resulting in the increase of cleaning time and the consumption of electric power, therefore, the existing technology needs to be improved. UTILITY MODEL CONTENTS

[0006] The utility model aims at providing a kind of RO chemical washing tank chemical washing backflow system to solve the problems raised in the above background technology.

[0007] To achieve the above object, the utility model provides the following technical scheme:

[0008] The RO chemical washing tank chemical washing backflow system comprises a control terminal, a wastewater conditioning tank, a reaction tank, a concentrated water tank and a module, the wastewater conditioning tank, the reaction tank and the concentrated water tank are connected in sequence by pipelines, the concentrated water tank is communicated with the input end of the module by a circulation pipeline, the output end of the module is connected to the concentrated water tank by a backflow pipeline, and the module is provided with a chemical washing system.

[0009] The washing system comprises a washing pipeline, a constant-temperature sandwich heating tank, a distribution pipeline and a circulation pipeline, the constant-temperature sandwich heating tank is communicated with the circulation pipeline through the washing pipeline, an output end of the constant-temperature sandwich heating tank is connected with a circulating pump through the distribution pipeline, and the circulating pump is communicated with the circulation pipeline through the circulation pipeline.

[0010] As a further scheme of the utility model: the distribution pipeline is further provided with a washing liquid sandwich heating tank, and a medicament adding pipeline is arranged on the washing liquid sandwich heating tank.

[0011] As a further scheme of the utility model: temperature sensors are arranged in the module, the constant-temperature sandwich heating tank and the washing liquid sandwich heating tank, the temperature sensors are electrically connected with a control end, the control end is electrically connected with the constant-temperature sandwich heating tank and the washing liquid sandwich heating tank, and the control end controls the temperature of the constant-temperature sandwich heating tank and the washing liquid sandwich heating tank through the electric signal value of the temperature sensors.

[0012] As a further scheme of the utility model: a filtering liquid pipeline is further arranged on the washing pipeline and communicated with a water outlet side of the module, and control valves are arranged on the filtering liquid pipeline and the washing pipeline respectively.

[0013] As a further scheme of the utility model: the circulation pipeline is communicated with the water outlet side of the module through a backflushing pipeline, and control valves are arranged on the circulation pipeline and the backflushing pipeline respectively.

[0014] As a further scheme of the utility model: the water outlet side of the module is communicated with a neutralization tank through an output pipeline.

[0015] As a further scheme of the utility model: the concentrated water tank is connected with a standing tank through a pipeline, and an output side of the standing tank is connected with a plate-and-frame filter press.

[0016] Compared with the prior art, the utility model has the beneficial effects that:

[0017] The RO washing tank washing circulation system adjusts the temperature of the washing liquid in the washing process through the temperature control of the constant-temperature sandwich heating tank and the washing liquid sandwich heating tank and the water supply proportion by the control end in the circulation process, so that the temperature of the washing liquid is maintained between - degrees, and better washing effect is achieved. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a structural schematic view of the RO washing tank washing circulation system.

[0019] In the figure: 1, wastewater conditioning tank; 2, reaction tank; 3, concentrated water tank; 4, circulating pipeline; 5, module; 6, backflow pipeline; 7, circulating pipeline; 8, cleaning pipeline; 9, filtrate pipeline; 10, backflush pipeline; 11, constant temperature sandwich heating tank; 12, output pipeline; 13, neutralization tank; 14, cleaning liquid sandwich heating tank; 15, blending pipeline; 16, plate and frame filter press; 17, standing tank. DETAILED DESCRIPTION

[0020] Please refer to Figure 1 In the embodiment of the utility model, the RO cleaning tank cleaning backflow system, including control end, wastewater conditioning tank 1, reaction tank 2, concentrated water tank 3 and module 5, wastewater conditioning tank 1, reaction tank 2, concentrated water tank 3 are sequentially connected through pipeline, concentrated water tank 3 and the input end of module 5 are communicated through circulating pipeline 4, and the output end of module 5 is transported to concentrated water tank 3 through backflow pipeline 6, and module 5 is provided with cleaning system;

[0021] Cleaning system includes cleaning pipeline 8, constant temperature sandwich heating tank 11, blending pipeline 15 and circulating pipeline 7, and constant temperature sandwich heating tank 11 is communicated with backflow pipeline 6 through cleaning pipeline 8, and the output end of constant temperature sandwich heating tank 11 is connected circulating pump through blending pipeline 15, and circulating pump is communicated with circulating pipeline 4 through circulating pipeline 7, and cleaning liquid will pass through constant temperature sandwich heating tank 11 in the circulating process, and constant temperature sandwich heating tank 11 is sandwich heating tank, and sandwich heating tank is usually made of stainless steel, has double-layer structure, and the middle sandwich layer can be heated by passing in heat conducting oil or steam, and the equipment is equipped with stirring system, ensures uniform heating of material, and temperature sensor is arranged in module 5, constant temperature sandwich heating tank 11 and cleaning liquid sandwich heating tank 14, and temperature sensor is electrically connected with control end, and control end is electrically connected with constant temperature sandwich heating tank 11 and cleaning liquid sandwich heating tank 14, and control end controls the temperature of constant temperature sandwich heating tank 11 and cleaning liquid sandwich heating tank 14 through the electric signal value of temperature sensor, and under the detection of temperature sensor, the internal circulating liquid temperature of module 5, constant temperature sandwich heating tank 11 and cleaning liquid sandwich heating tank 14 can be measured, thereby automatically regulating and controlling the constant temperature of sandwich heating tank through detection, so that the cleaning environment temperature is maintained at 30-35 degrees, and is automatically regulated and controlled according to actual water level, so that the temperature is not too high due to heat generated by acid meeting water, and the problem that the circulating cleaning cleaning liquid temperature gradually decreases and cannot be constant is avoided, in the beginning circulating stage, the temperature of constant temperature sandwich heating tank 11 can be lower than 30 degrees, and after heat is generated by acid meeting water, the water temperature rises, but basically maintains at 30-35 degrees, and when the water temperature appears downward trend, the temperature of constant temperature sandwich heating tank 11 is increased, and the cleaning liquid temperature is controlled, and cleaning liquid sandwich heating tank 14 can store cleaning liquid lower than the temperature of constant temperature sandwich heating tank 11 in the beginning cleaning stage, and when the temperature rises to 33, is added to circulation, and is controlled to be cooled.

[0022] In a preferred embodiment, the cleaning solution interlayer heating tank 14 is further arranged on the distribution pipeline 15, and the cleaning solution interlayer heating tank 14 is provided with a medicament adding pipeline, and the cleaning solution interlayer heating tank 14 is used as a supplementary cleaning solution tank for distributing the cleaning solution and storing the cleaning solution, and the cleaning solution interlayer heating tank 14 is also an interlayer heating tank, and the temperature of the cleaning solution interlayer heating tank 14 is different in different environmental operations.

[0023] In a preferred embodiment, the cleaning pipeline 8 is further provided with a filtered liquid pipeline 9 communicated with the water outlet side of the module 5, and the filtered liquid pipeline 9 and the cleaning pipeline 8 are respectively provided with control valves, and the recycling pipeline 7 is communicated with the water outlet side of the module 5 through the backwashing pipeline 10, and the recycling pipeline 7 and the backwashing pipeline 10 are respectively provided with control valves, and in the backwashing and cleaning process, the cleaning solution uses the primary cleaning solution in the cleaning solution interlayer heating tank 14 to backwash and clean the module, and the circulating water enters the constant temperature interlayer heating tank 11 or the concentrated water tank 3 for treatment.

[0024] In a preferred embodiment, the water outlet side of the module 5 is communicated with the neutralization tank 13 through the output pipeline 12, and the clarified water or the permeated water enters the PH adjusting system of the final neutralization tank 13 after passing through the membrane.

[0025] In a preferred embodiment, the concentrated water tank 3 is connected with the standing tank 17 through a pipeline, and the output side of the standing tank 17 is connected with the plate and frame filter press 16, and the solid of the concentrated water tank 3 is pumped to the standing tank 17 and the plate and frame filter press 16 by a pneumatic diaphragm pump.

[0026] It should be noted that the above embodiments all belong to the same utility model concept, and the description of each embodiment has different emphases, and the description not described in detail in an individual embodiment can be referred to the description in other embodiments.

[0027] The above described embodiments only express the implementation of the utility model, and the description is more specific and detailed, but it cannot be understood as a limitation on the scope of the utility model patent. It should be noted that for ordinary skilled persons in the art, without departing from the concept of the utility model, a number of modifications and improvements can be made, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent should be subject to the appended claims.

Claims

1. A RO washing tank washing backflow system, comprising a control end, a wastewater conditioning tank (1), a reaction tank (2), a concentrated water tank (3) and a module (5), the wastewater conditioning tank (1), the reaction tank (2) and the concentrated water tank (3) are sequentially connected through pipelines, the concentrated water tank (3) is communicated with the input end of the module (5) through a circulating pipeline (4), and the output end of the module (5) is transported to the concentrated water tank (3) through a backflow pipeline (6), characterized in that, The module (5) is provided with a washing system; The washing system comprises a cleaning pipeline (8), a constant temperature sandwich heating tank (11), a distribution pipeline (15) and a circulation pipeline (7), the constant temperature sandwich heating tank (11) is communicated with the circulation pipeline (6) through the cleaning pipeline (8), the output end of the constant temperature sandwich heating tank (11) is connected with a circulating pump through the distribution pipeline (15), and the circulating pump is communicated with the circulation pipeline (4) through the circulation pipeline (7).

2. The RO water washing and backwashing system according to claim 1, wherein, The distribution pipeline (15) is further provided with a washing liquid sandwich heating tank (14), and the washing liquid sandwich heating tank (14) is provided with a medicament adding pipeline.

3. The RO water washing and backwashing system according to claim 2, wherein, The module (5), the constant temperature sandwich heating tank (11) and the washing liquid sandwich heating tank (14) are all provided with temperature sensors, the temperature sensors are electrically connected with a control end, the control end is electrically connected with the constant temperature sandwich heating tank (11) and the washing liquid sandwich heating tank (14), and the control end controls the temperature of the constant temperature sandwich heating tank (11) and the washing liquid sandwich heating tank (14) through the electric signal value of the temperature sensor.

4. The RO water washing and backwashing system according to claim 3, wherein, The cleaning pipeline (8) is further provided with a filtering liquid pipeline (9) communicated with the water outlet side of the module (5), and the filtering liquid pipeline (9) and the cleaning pipeline (8) are respectively provided with control valves.

5. The RO water washing and backwashing system according to claim 4, wherein, The circulation pipeline (7) is communicated with the water outlet side of the module (5) through a backflush pipeline (10), and the circulation pipeline (7) and the backflush pipeline (10) are respectively provided with control valves.

6. The RO water washing and regenerating system according to claim 1, wherein, The water outlet side of the module (5) is communicated with a neutralization tank (13) through an output pipeline (12).

7. The RO water washing and regenerating system according to claim 1, wherein, The concentrated water tank (3) is connected with a standing tank (17) through a pipeline, and the output side of the standing tank (17) is connected with a plate-and-frame filter (16).

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