Deionized water system water treatment equipment

Abstract

The utility model discloses water treatment equipment of a deionized water system, which belongs to the technical field of water treatment equipment and comprises a pretreatment module for filtering water, and the pretreatment module is connected with a reverse osmosis control module for separating water through a reverse osmosis membrane. By adopting the mode, ions and impurities can be efficiently removed through three-stage filtration, so that the water quality reaches extremely high purity, the water inlet amount of the reverse osmosis device is automatically adjusted by adopting an electric slow-opening valve, the damage of high-pressure water flow to a reverse osmosis membrane is prevented, and the reverse osmosis device can be cleaned after working is finished; the water treatment equipment is high in stability and reliability, and stable effluent quality can be kept for a long time.

Description

Technical Field

[0001] The utility model relates to the technical field of water treatment equipment, and particularly relates to a water treatment equipment for a deionized water system. Background Technique

[0002] The water treatment equipment for a deionized water system is a device specifically used to remove ions in water, and is also known as pure water equipment or deionized water equipment. It removes cations and anions in water through ion exchange technology, thereby obtaining pure water. This equipment plays a key role in the circulating water system of an aluminum melting and casting plant. Especially during the process of cooling ingots, it can provide high-quality water source to ensure the cooling effect and the stability of the production process.

[0003] For example, Chinese Patent CN215403414U discloses a new type of water treatment reverse osmosis equipment, which includes a control system, a raw water pump, a quartz sand filter, an activated carbon filter, a scale inhibitor device, a precision filter, a centrifugal pump and a reverse osmosis device connected by pipelines.

[0004] However, its technology has the following problems. Only using a single filter cannot ensure sufficient filtration of raw water. After the raw water is filtered, it directly enters the reverse osmosis device, and the high-pressure water flow will damage the reverse osmosis membrane, and there is no cleaning treatment for the reverse osmosis device after it finishes working.

[0005] Based on this, the utility model designs a water treatment equipment for a deionized water system to solve the above problems. Content of the Utility Model

[0006] Aiming at the above-mentioned shortcomings of the prior art, the utility model provides a water treatment equipment for a deionized water system.

[0007] To achieve the above purposes, the utility model is realized through the following technical solutions:

[0008] A water treatment equipment for a deionized water system includes a pretreatment module for filtering water, and the pretreatment module is connected to a reverse osmosis control module for separating water through a reverse osmosis membrane;

[0009] The pretreatment module includes a raw water tank, a raw water pump, a primary filtration device, a secondary filtration device, a tertiary filtration device, a first manual valve, a second manual valve and a backwash pump. The raw water tank is connected to the raw water pump, the raw water pump is connected to the primary filtration device, the primary filtration device is communicated with the secondary filtration device through the first manual valve, the secondary filtration device is connected to the tertiary filtration device through the second manual valve. The primary filtration device, the secondary filtration device and the tertiary filtration device are all connected to the backwash pump. The tertiary filtration device is connected to the reverse osmosis control module, and the backwash pump is connected to an external water supply device.

[0010] Further, the reverse osmosis control module includes a high-pressure pump, an electric slow-opening valve, a reverse osmosis device, a cleaning device, a deionized water tank, and a deionized water booster pump. The three-stage filtration device is connected to the high-pressure pump, the high-pressure pump is connected to the electric slow-opening valve, the electric slow-opening valve is connected to the reverse osmosis device, the cleaning device is connected to the reverse osmosis device, the reverse osmosis device is connected to the deionized water tank, the deionized water tank is connected to the deionized water booster pump, and the deionized water booster pump is externally connected to a water-using device.

[0011] Further, a solenoid valve is connected to the water inlet side of the reverse osmosis device, and the solenoid valve is connected to an external water supply device.

[0012] Further, the primary filtration device includes a multi-media filter and a PAC dosing device. The multi-media filter is connected to the raw water pump, the PAC dosing device is connected to the multi-media filter, the multi-media filter is connected to the backwash pump, and the multi-media filter is connected to the first manual valve.

[0013] Further, the secondary filtration device is an activated carbon filter, and the activated carbon filter is connected to the first manual valve, the second manual valve, and the backwash pump.

[0014] Further, the tertiary filtration device includes a security filter and a scale inhibitor dosing device. The security filter is connected to the scale inhibitor dosing device, and the security filter is connected to the second manual valve, the backwash pump, and the high-pressure pump.

[0015] Further, the cleaning device includes a cleaning water tank, a cleaning pump, and a cleaning filter. The cleaning water tank is connected to the reverse osmosis device, the cleaning pump is connected to the cleaning water tank, the cleaning pump is connected to the cleaning filter, and the cleaning filter is connected to the reverse osmosis device.

[0016] Further, a liquid level controller is fixedly installed in each of the raw water tank, the deionized water tank, and the cleaning water tank, and the three liquid level controllers are electrically connected to the raw water pump, the deionized water booster pump, and the cleaning pump respectively.

[0017] Further, a low-pressure sensor is provided at the inlet of the high-pressure pump. When the inlet pressure is less than the set value, the high-pressure pump automatically stops.

[0018] Further, a high-pressure sensor is provided at the outlet of the high-pressure pump. When the working pressure is greater than the set value, the high-pressure pump stops running.

[0019] The beneficial effects of the present utility model compared with the prior art are as follows:

[0020] The raw water first enters the primary filtration device, secondary filtration device, and tertiary filtration device, and is filtered to remove suspended solids, organic matter, and residual chlorine in the raw water. Then, it is pumped into the reverse osmosis device by a high-pressure pump. The backwash pump cleans the primary filtration device, secondary filtration device, and tertiary filtration device. The reverse osmosis device uses an electric slow-opening valve to automatically adjust the water inflow to prevent damage to the reverse osmosis membrane caused by high-pressure water flow. Under the action of pressure, it undergoes ion-level filtration through the reverse osmosis membrane. Finally, the filtered water enters the deionized water tank, and then the water enters the water-using equipment through a deionized water booster pump. The salt, mechanical impurities, colloidal substances, and a small part of the unfiltered water in the concentrated raw water in the reverse osmosis device are gathered into concentrated water and then discharged into the sewer; the cleaning device cleans the inside of the reverse osmosis device.

[0021] This utility model can efficiently remove ions and impurities through three-stage filtration, making the water quality reach an extremely high purity. Moreover, the reverse osmosis device uses an electric slow-opening valve to automatically adjust the water inflow to prevent damage to the reverse osmosis membrane caused by high-pressure water flow. It can also be cleaned after the reverse osmosis device finishes working; the stability and reliability of the water treatment equipment of this utility model can maintain a stable water outlet quality for a long time. Brief Description of the Drawings

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0023] Figure 1 is the connection frame of a water treatment device for a deionized water system of the present utility model Figure 1 ;

[0024] Figure 2 is the connection frame of a water treatment device for a deionized water system of the present utility model Figure 2 ;

[0025] Figure 3 is the connection block diagram of the pretreatment module of the present utility model;

[0026] Figure 4 is the connection block diagram of the cleaning device of the present utility model.

[0027] The reference numerals in the drawings respectively represent:

[0028] 1. Raw water tank 2. Raw water pump 3. Primary filtration device 31. Multimedia filter 32. PAC dosing device 4. Secondary filtration device 5. Tertiary filtration device 51. Security filter 52. Scale inhibitor dosing device 6. First manual valve 7. Second manual valve 8. Backwash pump 9. High-pressure pump 10. Electric slow-opening valve 11. Reverse osmosis device 12. Cleaning device 121. Cleaning water tank 122. Cleaning pump 123. Cleaning filter 13. Deionized water tank 14. Deionized water booster pump. Detailed implementation manners

[0029] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0030] In some embodiments, please refer to the attached drawings of the specification Figures 1-4 , a deionized water system water treatment device, including a pretreatment module for filtering water, and the pretreatment module is connected to a reverse osmosis control module for separating water through a reverse osmosis membrane;

[0031] The pretreatment module includes a raw water tank 1, a raw water pump 2, a primary filtration device 3, a secondary filtration device 4, a tertiary filtration device 5, a first manual valve 6, a second manual valve 7 and a backwash pump 8. The raw water tank 1 is connected to the raw water pump 2, the raw water pump 2 is connected to the primary filtration device 3, the primary filtration device 3 is communicated with the secondary filtration device 4 through the first manual valve 6, the secondary filtration device 4 is connected to the tertiary filtration device 5 through the second manual valve 7, the primary filtration device 3, the secondary filtration device 4 and the tertiary filtration device 5 are all connected to the backwash pump 8, the tertiary filtration device 5 is connected to the reverse osmosis control module, and the backwash pump 8 is connected to an external water supply device.

[0032] The reverse osmosis control module includes a high-pressure pump 9, an electric slow-opening valve 10, a reverse osmosis device 11, a cleaning device 12, a deionized water tank 13 and a deionized water booster pump 14. The tertiary filtration device 5 is connected to the high-pressure pump 9, the high-pressure pump 9 is connected to the electric slow-opening valve 10, the electric slow-opening valve 10 is connected to the reverse osmosis device 11, the cleaning device 12 is connected to the reverse osmosis device 11, the reverse osmosis device 11 is connected to the deionized water tank 13, the deionized water tank 13 is connected to the deionized water booster pump 14, and the deionized water booster pump 14 is externally connected to a water-using device.

[0033] The raw water is pressurized tap water, which first enters the primary filtration device 3, secondary filtration device 4, and tertiary filtration device 5. After filtration to remove suspended solids, organic matter, and residual chlorine in the raw water, it is then pumped into the reverse osmosis device 11 by the high-pressure pump 9. The backwash pump 8 cleans the primary filtration device 3, secondary filtration device 4, and tertiary filtration device 5. The inlet water of the reverse osmosis device 11 uses an electric slow-opening valve 10 to automatically adjust the water intake volume to prevent damage to the reverse osmosis membrane caused by high-pressure water flow. Under the action of pressure, it passes through the reverse osmosis membrane for ion-level filtration. Finally, the filtered water enters the deionized water tank 13, and then the water enters the water-using equipment through the deionized water booster pump 14. The salts, mechanical impurities, colloidal substances, and a small part of the water that did not pass through in the concentrated raw water in the reverse osmosis device 11 are gathered into concentrated water and then discharged into the sewer; the cleaning device 12 cleans the interior of the reverse osmosis device 11.

[0034] This utility model can efficiently remove ions and impurities through three-stage filtration, making the water quality reach an extremely high purity. Moreover, the inlet water of the reverse osmosis device 11 uses an electric slow-opening valve 10 to automatically adjust the water intake volume to prevent damage to the reverse osmosis membrane caused by high-pressure water flow. It can also be cleaned after the reverse osmosis device 11 finishes working; the stability and reliability of the water treatment equipment of this utility model can maintain a stable water outlet quality for a long time.

[0035] In some embodiments, such as Figures 1-4 shown, as a preferred embodiment of the present utility model, the reverse osmosis device 11 is a conventional prior art in the art. The reverse osmosis device 11 includes a membrane module, a membrane housing, an assembly bracket, a control cabinet, and control instruments.

[0036] An electromagnetic valve is connected to the water inlet side of the reverse osmosis device 11. The electromagnetic valve is connected to an external water supply device. The reverse osmosis device 11 can automatically control the opening of the electromagnetic valve at regular intervals and periodically use the inlet water to perform surface flushing on the reverse osmosis membrane of the reverse osmosis device 11 to wash away the remaining concentrated water on the membrane module and prevent fouling on the surface of the membrane module caused by the deposition of concentrated water.

[0037] The primary filtration device 3 includes a multi-media filter 31 and a PAC dosing device 32. The multi-media filter 31 is connected to the raw water pump 2, the PAC dosing device 32 is connected to the multi-media filter 31, the multi-media filter 31 is connected to the backwash pump 8, and the multi-media filter 31 is connected to the first manual valve 6.

[0038] The secondary filtration device 4 is an activated carbon filter, and the activated carbon filter is connected to the first manual valve 6, the second manual valve 7, and the backwash pump 8.

[0039] The three - stage filtration device 5 includes a security filter 51 and a scale inhibitor dosing device 52. The security filter 51 is connected to the scale inhibitor dosing device 52, and the security filter 51 is connected to the second manual valve 7, the backwash pump 8, and the high - pressure pump 9.

[0040] The cleaning device 12 includes a cleaning water tank 121, a cleaning pump 122, and a cleaning filter 123. The cleaning water tank 121 is connected to the reverse osmosis device 11, the cleaning pump 122 is connected to the cleaning water tank 121, the cleaning pump 122 is connected to the cleaning filter 123, and the cleaning filter 123 is connected to the reverse osmosis device 11.

[0041] Level controllers are fixedly installed in the raw water tank 1, the deionized water tank 13, and the cleaning water tank 121. The three level controllers are electrically connected to the raw water pump 2, the deionized water booster pump 14, and the cleaning pump 122 respectively.

[0042] The level controller controls the operation of the raw water pump 2, the deionized water booster pump 14, and the cleaning pump 122 by detecting the liquid levels in the raw water tank 1, the deionized water tank 13, and the cleaning water tank 121.

[0043] The raw water is pressurized tap water. First, it enters the multi - media filter 31, and then the PAC dosing device 32 puts PAC into the multi - media filter 31. PAC is a polymer mixture used to coagulate the tiny suspended impurities in the influent water to improve the filtered water quality. Then the filtered water enters the activated carbon filter through the first manual valve 6. The activated carbon filter removes the suspended solids, organic matter, and residual chlorine in the raw water to protect the reverse osmosis device 11. Then the water enters the security filter 51 through the second manual valve 7. The scale inhibitor dosing device 52 doses scale inhibitor into the security filter 51 to prevent the formation and scaling of precipitates on the surface of the reverse osmosis membrane and improve the water production of reverse osmosis. After the multi - media filter 31, the activated carbon filter, and the security filter 51 complete the filtration, the backwash pump 8 pumps water to clean the interiors of the multi - media filter 31, the activated carbon filter, and the security filter 51.

[0044] After being filtered by the security filter 51, it is then pumped into the reverse osmosis device 11 by the high - pressure pump 9 through the electric slow - opening valve 10. Under the action of pressure, it undergoes ion - level filtration through the reverse osmosis membrane, which can remove more than 98% of inorganic salts, 99% of bacteria and heat sources. Finally, the filtered water enters the deionized water tank 13. The salts, mechanical impurities, colloidal substances, and a small part of the un - permeated water in the concentrated raw water in the reverse osmosis device 11 are gathered into concentrated water and then discharged into the sewer. The filtered water enters the deionized water tank 13, and then the water enters the water - using equipment through the deionized water booster pump 14.

[0045] The inlet side of the reverse osmosis device 11 is flushed at low pressure inside the reverse osmosis device 11 at regular intervals or when the device is shut down through a solenoid valve to wash away the pollutants on the surface of the reverse osmosis membrane. After long-term operation, various pollutants will accumulate on the reverse osmosis membrane surface of the reverse osmosis device 11, thereby reducing the water production and desalination rate of the reverse osmosis device 11. Therefore, in addition to the daily low-pressure flushing, it is also necessary to chemically clean the inside of the reverse osmosis device 11 regularly through the cleaning water tank 121, the cleaning pump 122, and the cleaning filter 123, generally once every six months.

[0046] In some embodiments, such as Figures 1-4 As shown, as a preferred embodiment of the present utility model, a low-pressure sensor is provided at the inlet of the high-pressure pump 9. When the inlet pressure is less than the set value, the high-pressure pump 9 automatically stops.

[0047] A high-pressure sensor is provided at the outlet of the high-pressure pump 9. When the working pressure is greater than the set value, the high-pressure pump 9 stops running to prevent damage to the pipeline and the membrane module.

[0048] When the low-pressure sensor detects that the inlet pressure is lower than the limit value, the low-pressure sensor transmits the signal to the controller of the high-pressure pump 9, and the high-pressure pump 9 automatically stops running, thereby ensuring the safety of the reverse osmosis device 11. The solenoid valve opens, and the reverse osmosis device 11 enters the membrane surface flushing state.

[0049] If the high-pressure sensor detects that the working pressure is higher than the limit value, the high-pressure sensor transmits the signal to the controller of the high-pressure pump 9, and the high-pressure pump 9 automatically stops running, thereby ensuring the safety of the reverse osmosis device 11.

[0050] The above embodiments are only used to illustrate the technical solutions of the present utility model, rather than to limit it; although the present utility model has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements will not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the various embodiments of the present utility model.

Claims

1. A deionized water system water treatment device, including a pretreatment module for filtering water, characterized in that: The pretreatment module is connected to a reverse osmosis control module for separating water through a reverse osmosis membrane; The pretreatment module includes a raw water tank (1), a raw water pump (2), a primary filtration device (3), a secondary filtration device (4), a tertiary filtration device (5), a first manual valve (6), a second manual valve (7), and a backwash pump (8). The raw water tank (1) is connected to the raw water pump (2), the raw water pump (2) is connected to the primary filtration device (3), the primary filtration device (3) is communicated with the secondary filtration device (4) through the first manual valve (6), the secondary filtration device (4) is connected to the tertiary filtration device (5) through the second manual valve (7), the primary filtration device (3), the secondary filtration device (4), and the tertiary filtration device (5) are all connected to the backwash pump (8), the tertiary filtration device (5) is connected to the reverse osmosis control module, and the backwash pump (8) is connected to an external water supply device.

2. The water treatment equipment of the deionized water system according to claim 1, characterized in that, The reverse osmosis control module includes a high-pressure pump (9), an electric slow-opening valve (10), a reverse osmosis device (11), a cleaning device (12), a deionized water tank (13), and a deionized water pressurizing pump (14). The tertiary filtration device (5) is connected to the high-pressure pump (9), the high-pressure pump (9) is connected to the electric slow-opening valve (10), the electric slow-opening valve (10) is connected to the reverse osmosis device (11), the cleaning device (12) is connected to the reverse osmosis device (11), the reverse osmosis device (11) is connected to the deionized water tank (13), the deionized water tank (13) is connected to the deionized water pressurizing pump (14), and the deionized water pressurizing pump (14) is externally connected to a water-using device.

3. The deionized water system water treatment equipment according to claim 2, characterized in that, A solenoid valve is connected to the water inlet side of the reverse osmosis device (11), and the solenoid valve is connected to an external water supply device.

4. The deionized water system water treatment equipment according to claim 3, characterized in that, The primary filtration device (3) includes a multi-media filter (31) and a PAC dosing device (32). The multi-media filter (31) is connected to the raw water pump (2), the PAC dosing device (32) is connected to the multi-media filter (31), the multi-media filter (31) is connected to the backwash pump (8), and the multi-media filter (31) is connected to the first manual valve (6).

5. The deionized water system water treatment equipment according to claim 4, characterized in that, The secondary filtration device (4) is an activated carbon filter, and the activated carbon filter is connected to the first manual valve (6), the second manual valve (7), and the backwash pump (8).

6. The water treatment equipment of the deionized water system according to claim 5, characterized in that, The tertiary filtration device (5) includes a security filter (51) and a scale inhibitor dosing device (52). The security filter (51) is connected to the scale inhibitor dosing device (52), and the security filter (51) is connected to the second manual valve (7), the backwash pump (8), and the high-pressure pump (9).

7. The water treatment equipment of the deionized water system according to claim 6, characterized in that, The cleaning device (12) includes a cleaning water tank (121), a cleaning pump (122), and a cleaning filter (123). The cleaning water tank (121) is connected to the reverse osmosis device (11), the cleaning pump (122) is connected to the cleaning water tank (121), the cleaning pump (122) is connected to the cleaning filter (123), and the cleaning filter (123) is connected to the reverse osmosis device (11).

8. The water treatment equipment of the deionized water system according to claim 7, characterized in that, Level controllers are fixedly installed in the original water tank (1), deionized water tank (13), and cleaning water tank (121), and the three level controllers are electrically connected to the original water pump (2), deionized water booster pump (14), and cleaning pump (122) respectively.

9. The water treatment equipment of the deionized water system according to claim 8, characterized in that, A low-pressure sensor is provided at the inlet of the high-pressure pump (9). When the inlet water pressure is less than the set value, the high-pressure pump (9) automatically stops.

10. The water treatment equipment of the deionized water system according to claim 9, characterized in that, A high-pressure sensor is provided at the outlet of the high-pressure pump (9). When the working pressure is greater than the set value, the high-pressure pump (9) stops running.

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