CN110482755A - Subacidity hypochloric acid water production equipment - Google Patents

Abstract

The invention discloses slightly acidic hypochlorous acid water production equipment. The production equipment includes at least one level of purification device, which is used to purify the raw water from the raw water supply system and each level of purification device is provided with a corresponding water outlet; slightly acidic hypochlorous acid water generator, the micro The acidic hypochlorous acid water generator is located downstream of the purification device and is selectively connected with one of the primary purification devices, and the slightly acidic hypochlorous acid water generator is used to process the water from the purification device into slightly acidic hypochlorite Acid water; and a water supply port, the water outlet of the purification device and the water outlet of the slightly acidic hypochlorous acid water generator are switchably connected to the water supply port through corresponding pipelines. The device can provide various levels of purified water or slightly acidic hypochlorous acid water, and can switch the type of water intake according to user needs.

Description

Slightly acidic hypochlorous acid water production equipment

technical field

The invention relates to water production equipment, in particular to slightly acidic hypochlorous acid water production equipment.

Background technique

Water is the source of life and the material basis for social and economic development and social progress. With the refinement of social division of labor, in different application scenarios, the requirements for water quality show a trend of diversification. For example, daily drinking water needs to control the hardness of water to reduce the risk of calcium deposits and stones in the human body. In addition, high-purity water is required for cleaning optical instruments, mobile phone film, and mobile phone screens.

At present, the water treatment of most municipal water supply systems in China mainly treats the suspended solids and bacteria and other microorganisms in tap water, and seldom treats the hardness of tap water, and the tap water transportation process may cause serious secondary pollution, such as high-rise water storage. Tank water supply and long tap water delivery pipelines will cause potential contamination problems such as rust, scale and microorganisms. Therefore, the tap water of the municipal water supply system cannot be used directly, and specific procedures need to be used to achieve water purification effects to meet different production needs.

Water purification treatment methods commonly used in industrial production generally include sand filtration, carbon filtration, softening filtration, precision filtration, ultrafiltration, reverse osmosis filtration (RO filtration) and the like. Among them, sand filtration is a water filtration treatment process that uses natural quartz sand, usually manganese sand and anthracite as filter materials. Its main function is to intercept macromolecular solid particles and colloids in water to clarify water; Activated carbon is used as the filter material; precision filtration can remove fine suspended solids or colloidal particles that cannot be removed by sand and carbon filtration in water; softening filtration refers to the filtration process to reduce water hardness. , Magnesium ions are replaced, and the softened and filtered water is generally called deionized water; ultrafiltration is a pressurized membrane separation technology. Water; Reverse Osmosis Filtration (RO Filtration) membrane has smaller pore size and is often used to separate small molecule solutes and can be used to produce purified water.

Currently commercially available water purification equipment usually adopts one or a few of the above-mentioned methods as water treatment methods, and generally can only provide a certain type of purified water, but cannot meet the needs of different water qualities in different application environments. In addition, none of the currently commercially available water purification equipment can produce slightly acidic hypochlorous acid water.

Contents of the invention

The purpose of this application is to provide a slightly acidic hypochlorous acid water production equipment, which can produce slightly acidic hypochlorous acid water, and is provided with at least one water supply port, which can provide users with purified water or Slightly acidic hypochlorous acid water, and the type of water intake can be switched according to user needs.

In order to achieve the above object, the present invention proposes a kind of slightly acidic hypochlorous acid water production equipment, comprising:

At least one level of purification device, the purification device is used to purify the raw water from the raw water supply system and each level of purification device is provided with a corresponding water outlet;

Slightly acidic hypochlorous acid water generator, said slightly acidic hypochlorous acid water generator is located at the downstream of said purification device and selectively connected with one of the primary purification devices, said slightly acidic hypochlorous acid water generator is used to The water of the purification device is processed into slightly acidic hypochlorous acid water; and

The water supply port, the water outlet of the purification device and the water outlet of the slightly acidic hypochlorous acid water generator are switchably connected to the water supply port through corresponding pipelines.

In one embodiment, the slightly acidic hypochlorous acid water production equipment further includes at least one water storage tank, the water outlet of at least one stage of the purification device is connected to the corresponding water storage tank through pipelines, and the slightly acidic hypochlorous acid water The water outlet of the chloric acid water generator is connected to a corresponding water storage tank through a pipeline, wherein the water outlet of each water storage tank is connected to the water supply port through a pipeline.

In one embodiment, the slightly acidic hypochlorous acid water production equipment has two water supply ports, and the water outlet of the water storage tank connected to the water outlet of the purification device is connected to one of the water supply ports, which is connected to the slightly acidic water supply port. The water outlet of the water storage tank connected to the water outlet of the hypochlorous acid water generator is connected to another water supply port.

In one embodiment, the purification device includes:

A first-stage purification device, the first-stage purification device performs at least one of sand filtration, carbon filtration, softening and precision filtration on the raw water, wherein the water outlet of the first-stage purification device is switchable through a pipeline connected to said water supply port; and

An ultrafiltration membrane group filter, the ultrafiltration membrane group filter is located downstream of the first-stage purification device and is used to further filter water from the first-stage purification device, wherein the outlet of the ultrafiltration membrane group filter The water port is switchably connected to the water supply port through a pipe.

In one embodiment, the purification device further includes a reverse osmosis membrane filter, the reverse osmosis membrane filter is located downstream of the ultrafiltration membrane filter and is used to further filter the water from the ultrafiltration membrane filter , wherein the water outlet of the reverse osmosis membrane filter is switchably connected to the water supply port through a pipeline.

In one embodiment, the slightly acidic hypochlorous acid water production equipment also includes an electrodeionization device, and the electrodeionization device is located downstream of the reverse osmosis membrane filter and is used for further filtering The water, and the water outlet of the electrodeionization device are switchably connected to the water supply port through pipes.

In one embodiment, the first-stage purification device includes a softening filter, and the water storage tank includes a deionized water storage tank, and the deionized water storage tank is located downstream of the softening filter and is used for storing The deionized water of the softening filter and the outlet of the deionized water storage tank are switchably connected to the water supply port through pipelines.

In one embodiment, the water storage tank includes a drinking water storage tank and a high-purity water storage tank, and the drinking water storage tank is located downstream of the ultrafiltration membrane group filter and is filtered with the ultrafiltration membrane group. connected to the water outlet of the device for storing drinking water from the ultrafiltration membrane group filter; connected to store the high-purity water from the reverse osmosis membrane filter; wherein the water outlets of the drinking water storage tank and the high-purity water storage tank are switchably connected to the water supply port through pipelines.

In one embodiment, the water storage tank further includes an ultrapure water storage tank, the ultrapure water storage tank is located downstream of the electrodeionization device and connected to the water outlet of the electrodeionization device, for The ultrapure water from the electrodeionization device is stored; the outlet of the ultrapure water storage tank is switchably connected to the water supply port through a pipeline.

In one embodiment, the slightly acidic hypochlorous acid water production equipment further includes a controller, the controller is arranged to control the water outlet of the purification device and the water outlet of the slightly acidic hypochlorous acid water generator. A water outlet communicates with the water supply port.

The beneficial effects brought by the present invention are:

The slightly acidic hypochlorous acid water production equipment utilizes the hydrodynamic reaction method to generate an acidic aqueous solution with slightly acidic hypochlorous acid water as the main bactericidal component. The slightly acidic hypochlorous acid aqueous solution presents stable slightly acidic and has a strong inhibitory effect on organic matter such as bacteria and viruses. Its antibacterial effect is the same as that of hypochlorous acid produced by human white blood cells. It is harmless to the human body and can be used for external sterilization . This slightly acidic hypochlorous acid water can also be used to remove air odors such as smoke, musty, sweat. In addition, the slightly acidic hypochlorous acid water production equipment of the present invention has at least one water supply port, and the water supply port can provide at least one of purified water or slightly acidic hypochlorous acid water meeting different grade standards according to user needs.

Description of drawings

Fig. 1 is a system diagram of slightly acidic hypochlorous acid water production equipment according to an embodiment of the present invention.

Detailed ways

Preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, so as to better understand the purpose, features and advantages of the present invention. It should be understood that the embodiments shown in the drawings are not intended to limit the scope of the present invention, but only to illustrate the essence of the technical solution of the present invention.

In the following description, for the purposes of explaining the various disclosed embodiments, certain specific details are set forth in order to provide a thorough understanding of the various disclosed embodiments. However, one skilled in the relevant art will recognize that an embodiment may be practiced without one or more of these specific details. In other instances, well-known devices, structures and techniques associated with the present application may not have been shown or described in detail in order to avoid unnecessarily obscuring the description of the embodiments.

Unless the context requires otherwise, throughout the specification and claims, the word "comprise" and variations thereof, such as "comprising" and "having" are to be read in an open, inclusive sense, i.e., "including, but not limited to".

Reference throughout this specification to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiments is included in at least one embodiment. Thus, appearances of "in one embodiment" or "in an embodiment" in various places throughout the specification are not necessarily all referring to the same embodiment. In addition, particular features, structures or characteristics may be combined in any manner in one or more embodiments.

As used in this specification and the appended claims, the singular forms "a", "an" and "the" include plural referents unless the context clearly dictates otherwise. It should be noted that the term "or" is generally employed in its sense including "and/or" unless the context clearly dictates otherwise.

In the following description, in order to clearly show the structure and working method of the present invention, many directional words will be used to describe, but "front", "rear", "left", "right", "outer", "inner" should be used ", "outward", "inward", "upper", "lower" and other words are to be understood as convenient terms, and should not be understood as restrictive terms.

A slightly acidic hypochlorous acid water production facility 100 is generally shown in FIG. 1 . Slightly acidic hypochlorous acid water production equipment 100 includes at least one primary purification device for purifying the raw water from the raw water supply system. Here, raw water refers to water that has not been treated by the equipment of the present application, such as tap water from a municipal water supply system. A slightly acidic hypochlorous acid water generator 106 is provided downstream of the purification devices at all levels to process the water treated by the purification devices at all levels into slightly acidic hypochlorous acid water. Here, slightly acidic hypochlorous acid water refers to hypochlorous acid water with a pH range of 6.2 to 6.8, and at a selected pH value, the pH variation range is within plus or minus 0.05.

Specifically, the slightly acidic hypochlorous acid water production equipment 100 includes a pre-filter 101 and a raw water tank 102, and the pre-filter 101 is connected to a water source through a pipeline 301. The pre-filter 101 and the raw water tank 102 are connected by a pipeline 302. The raw water from the raw water supply system is stored in the raw water tank 102 after being filtered by the pre-filter 101 . Prefilter 101 upstream position is provided with valve 303, can control raw water to flow into slightly acidic hypochlorous acid water production equipment 100 by valve switch. The valve is set as a manual valve. Preferably, the valve can also be set as a solenoid valve.

As also shown in FIG. 1 , the raw water tank 102 is connected to the first-stage filtering device 103 through a pipeline. The raw water from the raw water supply system is subjected to at least one treatment of sand filtration, carbon filtration, softening and precision filtration by the first stage filter device 103. Preferably, the first stage filter device 103 at least includes softening filter, and forms deionized water. Specifically, the first-stage filtering device 103 includes a sand carbon filter 1031, a softening filter 1032, and a precision filter 1033. But according to the water quality condition of raw water, the first-stage filtering device 103 can comprise sand carbon filter 1031, softening filter 1032 and the combination of any one or two in precision filter 1033. The sand carbon filter 1031 is used to remove large particles and impurities in the tap water and improve the taste of the water. The softening filter 1032 is used to remove calcium and magnesium ions in the water to adjust the hardness of the water. The precision filter 1033 can remove fine suspended solids or colloidal particles that cannot be removed by sand filters and carbon filters in water. In addition, a salt regenerating device 10321 for regenerating the softening filter 1032 is usually provided to regenerate the softening filter 1032.

The water treated by the first-stage filtering device 103 can be divided into two branches, one of which leads to a water supply port (not shown), which can provide deionized water to users. The deionized water processed by the first-stage filtering device 103 can be used as laboratory, laboratory water, boiler water, etc. Another branch is connected to ultrafiltration membrane group filter and/or reverse osmosis membrane module 104 through pipeline 304.

The ultrafiltration membrane group filter has a melt-blown filter element for further filtering the water from the first-stage filter device 103. The water treated by ultrafiltration membrane group filter is ultrafiltration water. The filter pore size of the melt-blown filter element is about 0.01 micron. Impurities such as bacteria, rust, colloid and organic matter are further removed from the ultra-filtered water, but nutrients such as dissolved oxygen and trace minerals required by the human body are retained. The water quality has reached the current level in my country. Drinking water standards can be used in kindergartens, hospitals, nursing homes, hotels and catering and other industries, and play an important role in sterilization and preservation, food processing, anti-virus, washing and other aspects. The water treated by the ultrafiltration membrane group filter can be divided into two branches, one of which leads to the first water supply port 204, and the water quality standard of this branch reaches the current drinking water standard in my country. The water treated by the reverse osmosis membrane module is high-purity water, which can reach the standard of high-purity water. It basically does not retain minerals in the water. The pH value is between 6-7, which is weakly acidic. It can be used as raw liquid or raw material to produce sanitary products and disinfection. Products, skin and mucous membrane disinfectants and other products.

The membrane pore size of the reverse osmosis membrane module is smaller than that of the ultrafiltration membrane, and can be used to further filter the treated water from the first stage filter device 103 or the ultrafiltration membrane group filter. The water treated by the reverse osmosis membrane module can be divided into two branches, one of which leads to the first water supply port 204, which can provide high-purity water to users, and the other branch leads to the slightly acidic hypochlorous acid Water generator 106.

In one embodiment, the water treated by the reverse osmosis membrane module is connected to an electrodeionization (EDI) device (not shown in the figure) through another branch. In the EDI device, the directional migration of ions in the water is realized under the action of the electric field, so as to achieve the deep purification and desalination of the water. Therefore, EDI water is called ultrapure water (EDI water), which can be widely used in electricity, electronics, medicine, Chemical industry, optical instruments and laboratory fields. The water treated by the EDI device is mainly used to generate distilled water for injection, hemodialysis, etc. The water treated by the EDI device can be divided into two branches, one of which leads to a water supply port of the equipment, which can provide ultra-pure water to users, and the other branch leads to slightly acidic hypochlorous acid water to generate device 106.

In one embodiment, the ultrapure water treated by the electrodeionization (EDI) device is also connected to a distillation purification device (not shown in the figure) through another branch (not shown in the figure). The water treated by the distillation purification device has higher purity and can reach the standard of medical distilled water. The water treated by the distillation purification device can be divided into two branches, one of which leads to the first water outlet 204, which can provide users with medical distilled water, and the other branch leads to hypochlorous acid The water processing device 106 is used to produce slightly acidic hypochlorous acid water from medical distilled water; the slightly acidic hypochlorous acid water produced by using the medical distilled water can be used as a stock solution or raw material to produce skin and mucous membrane disinfectants, burn wound disinfectants and other products.

In this embodiment, a sterilizing system 105 is arranged between the ultrafiltration membrane group filter and/or the reverse osmosis membrane module 104 and the slightly acidic hypochlorous acid water generator 106 for sterilizing the water. Sterilization system 105 can adopt ultraviolet sterilizing system. The ultraviolet sterilizing system may include an external sleeve and a quartz ultraviolet lamp tube arranged in the external sleeve, and an annular flow channel is formed between the external sleeve and the quartz ultraviolet lamp tube for the passage of water in the pipeline. But it should be understood that the sterilization method is not limited to the above-mentioned method, and other sterilization methods can be used.

The slightly acidic hypochlorous acid water generator 106 is located downstream of the purification devices at all levels and is selectively connected to one of the primary purification devices for processing the above-mentioned deionized water, high-purity water, ultra-pure water, and medical distilled water into slightly acidic hypochlorous acid Water, the branches connected with the first stage filter device 103, EDI device and distillation purification device are not shown in the figure. The slightly acidic hypochlorous acid water generator 106 of the present application adopts jet flow reaction method. The hypochlorous acid water obtained by the slightly acidic hypochlorous acid water generator 106 presents a stable slightly acidic, pH value can be stabilized between 6.20-6.80, and any value is within a narrow range of plus or minus 0.05, and can be stored in dark conditions More than 18 months. The hypochlorous acid water only has a strong inhibitory effect on organic matter such as bacteria and viruses, and its antibacterial active ingredients are the same as the hypochlorous acid produced by human leukocytes. It has a strong ability to eliminate bacteria and is non-toxic and harmless to the human body. The hypochlorous acid water can also remove smoke, stink, food, sweat, etc. in the space to improve air quality.

The slightly acidic hypochlorous acid water generator 106 includes a reactor 1061, a medicine box 1062 and a medicine box 1063. Medicine box 1062 and medicine box 1063 are used to contain NaClO and HCl, respectively. According to the needs of the reaction, add a certain amount of NaClO and HCl into the reactor 1061 to mix and react with the water from the upstream purification device to generate hypochlorous acid water with a pH value ranging from 6.2 to 6.8. Under the pH value, its pH variation range is within plus or minus 0.05.

The water outlet of the slightly acidic hypochlorous acid water generator 106 is connected to the second water supply port 205 via a pipeline for supplying water to users. A slightly acidic hypochlorous acid water storage tank 108 is arranged between the slightly acidic hypochlorous acid water generator 106 and the second water supply port 205, for storing the slightly acidic hypochlorous acid water from the slightly acidic hypochlorous acid water generator . Preferably, between the slightly acidic hypochlorous acid water generator 106 and the slightly acidic hypochlorous acid water storage tank 108, a slightly acidic hypochlorous acid water transfer storage tank 109 is provided, and the hypochlorous acid water transfer storage tank 109 is used for storage during the water conversion process of hypochlorous acid.

Further, in the illustrated embodiment, the slightly acidic hypochlorous acid water production equipment 100 is provided with a bypass pipeline 201. The inlet of the bypass pipeline 201 is connected with the raw water supply system through a three-way valve 305 . The three-way valve 305 is configured to selectively connect the raw water supply system with the bypass pipeline 201 or the first-stage filter device 103 . The outlet of the bypass line 201 is connected to the water supply pipeline of the slightly acidic hypochlorous acid water production equipment 100 via another three-way valve 306. Here, the three-way valve is an electromagnetic three-way valve. It should be understood that the three-way valve can also be replaced by an electromagnetic valve respectively installed on the bypass line and another electromagnetic valve installed on the outlet branch of the slightly acidic hypochlorous acid water generator.

The slightly acidic hypochlorous acid water production equipment 100 is further provided with a controller (not shown in the figure). When the purification device or the slightly acidic hypochlorous acid water generator fails, the controller receives the fault alarm signal, sends an alarm and controls the three-way The valve is switched to the bypass line 201 to ensure a stable supply of daily water.

Further, as shown in the figure, a deionized water storage tank (not shown in the figure) is provided in the pipeline downstream of the first-stage filter device 103, and the water outlet of the deionized water storage tank is connected to the equipment water supply via a pipeline. mouth. Preferably, a drinking water storage tank is provided in the downstream pipeline of the ultrafiltration membrane group filter, a high-purity water storage tank is provided in the downstream pipeline of the reverse osmosis membrane module, and the water outlet of the drinking water storage tank and the high-purity water storage tank It is connected to the first water supply port 204 of the equipment via a pipeline. Preferably, an ultrapure water storage tank (not shown) is arranged in the downstream pipeline of the electrodeionization (EDI) device, and the water outlet of the ultrapure water storage tank is connected to the equipment water supply port via a pipeline.

Preferably, the first water supply port 204, the second water supply port 205 and other possible water supply ports are connected with deionized water branch, drinking water branch, high-purity water branch, ultrapure water branch, medical distilled water according to the demand. One or more of the branches. The controller is arranged to be able to switch the water supply type of the water supply port according to the user setting.

Furthermore, the slightly acidic hypochlorous acid water production equipment is provided with a drainage pipeline 202, which is connected to the outlet of each water storage tank through a corresponding valve. Preferably, the valve is configured as a solenoid valve, which is opened and closed by a controller. The embodiment in Fig. 1 is set as an electromagnetic three-way valve 4025, which is switched by a controller. The downstream pipeline of each water storage tank is equipped with a delivery pump and a pressure switch. When the pipeline pressure is low, the pressure switch controls the delivery pump to open to increase the pressure of water supply to the downstream. When the pipeline pressure is too high, the pressure switch controls the delivery pump to close. Each water storage tank is provided with a liquid level detector. The liquid level detector extends along the height of the water storage tank to detect the liquid level in the corresponding water storage tank.

Within the set time limit, when the liquid level detected by the liquid level detector is higher than the predetermined liquid level, the controller controls to open the inlet valve of the drainage pipeline to drain water and close the corresponding delivery pump in the downstream pipeline of the water storage tank. As a result, the water in the water storage tank is periodically discharged. Further, the water supply pipeline downstream of each water storage tank is provided with a flow meter, and the water supply volume of the corresponding water storage tank can be calculated according to the readings of the flow meter. In the set time interval, if the net flow rate of the flowmeter is less than the preset flow rate, the controller controls to open the inlet valve of the drainage pipeline to drain water and close the corresponding delivery pump in the downstream pipeline of the water storage tank. Thereby, the water in the water storage tank can be discharged regularly, thus ensuring the quality of the water. Preferably, the controller has the function of adjusting the predetermined liquid level according to the water consumption of the corresponding water storage tank.

Specifically, for example, the outlet of the raw water storage tank 102 is provided with an electromagnetic three-way valve 4025a. One outlet of the three-way valve is connected with the drainage pipeline 202, and the other outlet is connected with the first-stage filtering device 103 through a pipeline 307. The raw water storage tank 102 is provided with a liquid level detector 4021a along the height of the storage tank, and a delivery pump 4023a, a pressure switch 4027a, a flow meter 4022a and a pressure sensor 4024a are provided on the pipeline 307 . Wherein the pressure sensor 4024a is arranged at the inlet of the sand carbon filter 1031, and is used for monitoring the pressure of its water inlet. When working, the electromagnetic three-way valve 4025a is switched to be connected to the pipeline 307, and the raw water storage tank 102 supplies water to the first-stage filter device 103, and the pressure sensor 4024a detects the water flow pressure at the water inlet of the pipeline. When the pressure was too low, the pressure switch 4027a controlled the delivery pump 4023a to increase the pressure of the water delivered downstream, and when the pressure was too high, the delivery pump 4023a was stopped. Within the set time limit, when the liquid level detected by the liquid level detector 4021a is higher than the predetermined liquid level, the controller controls to close the corresponding delivery pump 4023a of the downstream pipeline 307 of the raw water storage tank 102 and switch the electromagnetic three-way valve 4025a To the drainage pipeline 202 for drainage.

In the set time interval, if the net flow rate of the flowmeter is less than the preset flow rate, for example, within the set three-day time interval, if no water is used or the water consumption is lower than expected, the controller controls the transmission on the pipeline 307 to be closed. The pump 4023a switches the electromagnetic three-way valve 4025a to the drainage pipeline 202 for drainage, so as to ensure the quality of the water supply. Additionally, the controller recalculates and controls the fill level based on the water usage during that time interval, and changes other presets accordingly, such as changing the preset level and preset flow.

Sand carbon filter 1031 is connected with softening filter 1032 by pipeline 308, is provided with pressure sensor 4024b on pipeline 308, can also be provided with delivery pump, pressure switch, flow meter on pipeline 308. The softening filter 1032 is connected to the precision filter 1033 through the pipeline 309, and a delivery pump, a pressure switch, and a flow meter can also be set on the pipeline 309, and the precision filter 1033 is also provided with a pressure sensor 4024c for monitoring the precision filter 1033. water pressure.

The first-stage filtering device 103 is connected with the ultrafiltration membrane group filter and/or the reverse osmosis membrane module 104 through the pipeline 304. The bottom outlet of the ultrafiltration membrane group filter and/or the reverse osmosis membrane module 104 is also connected with the drainage pipeline 202, and a thick discharge diaphragm manual valve 4029 and a flow meter 4022i are arranged at the bottom outlet to manually control the discharge of concentrated water. The pipeline 304 is provided with a delivery pump 4023c, a pressure switch 4027c, a flow meter (not shown in the figure), a pressure sensor 4024c, and a manual valve 4026c.

Preferably, a deionized water storage tank (not shown) is provided on the pipeline 304, and an electromagnetic three-way valve is arranged at the outlet of the deionized water storage tank. device and/or the reverse osmosis membrane module 104, and the other outlet is connected to the drainage pipeline 202. The ultrafiltration membrane group filter and/or the reverse osmosis membrane module 104 can be provided with the ultrafiltration membrane group filter or the reverse osmosis membrane module, and the ultrafiltration membrane group filter and the reverse osmosis membrane module can also be set at the same time, wherein the reverse osmosis membrane module Set downstream of ultrafiltration membrane group filter.

A drinking water storage tank for storing drinking water may be arranged downstream of the ultrafiltration membrane group filter. A high-purity water storage tank for storing high-purity water can be arranged downstream of the reverse osmosis membrane module. An electromagnetic three-way valve is arranged at the outlet of the drinking water storage tank and the high-purity water storage tank. One outlet of the three-way valve is connected with the drain pipeline 202, and the other outlet is connected with the downstream pipeline for further treatment of water.

The ultrafiltration membrane group filter and/or the reverse osmosis membrane assembly 104 are connected with the slightly acidic hypochlorous acid water generator 106 through a pipeline 310, and a sterilizing device 105 is arranged on the pipeline 310 for sterilizing the water. A flow meter 4022d is provided at the entrance of the sterilization device 105. Pipeline 310 is also provided with drinking water/high purity water storage tank 107. The drinking water/high-purity water storage tank 107 is provided with a liquid level sensor 4021e along its height.

A three-way valve 4025e is provided at the outlet of the drinking water/high-purity water storage tank 107 . One outlet of this three-way valve is connected with drain pipeline 202. A delivery pump 4023e, a pressure switch 4027e and another three-way valve 4025f are arranged on the branch of the other outlet of the three-way valve. An outlet of the three-way valve is connected with the slightly acidic hypochlorous acid water generator 106, and the other outlet is connected with the first water supply port 204, and a flow meter 4022e is arranged on the branch for monitoring pipeline flow. A flow meter 4022f is provided on the branch for monitoring the pipeline flow.

The slightly acidic hypochlorous acid water generator 106 is connected to the slightly acidic hypochlorous acid water transfer storage tank 109 through the pipeline 311, and the slightly acidic hypochlorous acid water transfer storage tank 109 is provided with a liquid level sensor 4021g along its height. Turn water storage tank 109 outlets in slightly acidic hypochlorous acid water and be provided with electromagnetic three-way valve 4025g. One of the outlets of the three-way valve is connected with the drain line 202, and the other outlet is connected with the slightly acidic hypochlorous acid water storage tank 108 by a pipeline 312. The slightly acidic hypochlorous acid water storage tank 108 is provided with a liquid level sensor 4021h. A delivery pump 4023g is provided on the pipeline 312 . Slightly acidic hypochlorous acid water storage tank 108 outlet is provided with electromagnetic three-way valve 4025h, and one outlet of this three-way valve is connected with drainage pipeline 202, and another outlet is connected with second water supply port 205 by pipeline 313. A delivery pump 4023h, a pressure switch 4027h and a flow meter 4022h are arranged on the pipeline 313 to monitor the pressure and flow rate, and to control the action of the delivery pump and the electromagnetic three-way valve according to the pressure and flow rate.

Further, a solenoid valve is provided at the inlet of the corresponding water storage tank, and when the water storage tank is emptied and refilled with water, when the liquid level is higher than a predetermined liquid level, the controller closes the solenoid valve of the inlet. Preferably, the corresponding water storage tank inlet is also provided with a manual valve 4026, which can manually close the water inlet of the water storage tank.

Further, slightly acidic hypochlorous acid water production equipment is provided with cleaning pipeline, and this cleaning pipeline comprises cleaning general road 203 and cleaning branch road 206. Wherein, the cleaning main road 203 has at least one inlet and at least one outlet, each inlet is openably and closably connected to the water outlet of the corresponding water storage tank via a pipeline, and each outlet is openably and closably connected to the corresponding purification device via a pipeline . Among the figure, one inlet of cleaning main road 203 is connected with the slightly acidic hypochlorous acid water storage tank, and the other inlet is connected with drinking water and/or high-purity water storage tank, and an outlet thereof is connected to the inlet of the first stage filtering device 103.

Another inlet of the cleaning main road 203 is connected with the raw water storage tank 102, and its outlet is connected to the ultrafiltration membrane group filter and/or the reverse osmosis membrane module 104 through a pipeline, and is used for ultrafiltration membrane group filter and/or The reverse osmosis membrane module 104 is flushed. This pipe is provided with a solenoid valve 4031 .

The cleaning branch 206 is used for cleaning the water storage tank. A delivery pump 4023 is provided on the pipeline connected to the water outlet of the water storage tank. The inlet of cleaning branch 206 is connected with the outlet of transfer pump 4023, and its outlet is connected to the water storage tank inlet. The controller can control the opening of delivery pump 4023 and form the flushing pressure of the cleaning pipeline. The outlet of the cleaning branch 206 is connected to a flushing nozzle (not shown) inside the water storage tank by a pipeline, and the flushing nozzle and the inner wall of the water storage tank are arranged at an angle. The controller is arranged to be able to control the rotation of the flushing nozzle to flush the water storage tank in all directions. It should be understood that there can be more than one flushing nozzle as required, and the outlet of the cleaning branch 206 can be selectively combined with the water inlet of the water storage tank into the same one. In addition, the cleaning main circuit 203 and the cleaning branch circuit 206 are provided with solenoid valves, which are opened or closed by the controller.

The preferred embodiments of the present invention have been described in detail above, but it should be understood that aspects of the embodiments can be modified, if desired, to employ aspects, features and concepts of various patents, applications and publications to provide further embodiments.

These and other changes can be made to the embodiments in light of the above detailed description. In general, in the claims, the terms used should not be construed as limited to the specific embodiments disclosed in the specification and claims, but rather should be understood to include all possible embodiments, along with all equivalents to which such claims are entitled. scope.

Claims (10)

1. a kind of slightly acidic hypochlorous acid water production equipment is characterized in that, described slightly acidic hypochlorous acid water production equipment comprises: At least one stage of purification device, the purification device is used to purify the raw water from the raw water supply system, and each stage of purification device is provided with a corresponding water outlet; Slightly acidic hypochlorous acid water generator, said slightly acidic hypochlorous acid water generator is located at the downstream of said purification device and selectively connected with one of the primary purification devices, said slightly acidic hypochlorous acid water generator is used to The water of the purification device is processed into slightly acidic hypochlorous acid water; and The water supply port, the water outlet of the purification device and the water outlet of the slightly acidic hypochlorous acid water generator are switchably connected to the water supply port through corresponding pipelines. 2. slightly acidic hypochlorous acid water production equipment according to claim 1, is characterized in that, described slightly acidic hypochlorous acid water production equipment further comprises at least one water storage tank, the water outlet of at least one level described purification device Corresponding water storage tanks are connected through pipelines, and the water outlet of the slightly acidic hypochlorous acid water generator is connected with corresponding water storage tanks through pipelines, wherein the water outlets of each of the water storage tanks are connected to the water storage tanks via pipelines. water supply port. 3. slightly acidic hypochlorous acid water production equipment according to claim 2, is characterized in that, described slightly acidic hypochlorous acid water production equipment has two water supply ports, the water storage that is connected with the water outlet of described purification device The water outlet of the tank is connected to one of the water supply ports, and the water storage tank connected to the water outlet of the slightly acidic hypochlorous acid water generator is connected to the other water supply port. 4. slightly acidic hypochlorous acid water production equipment according to claim 2, is characterized in that, described purifier comprises: A first-stage purification device, the first-stage purification device performs at least one of sand filtration, carbon filtration, softening and precision filtration on the raw water, wherein the water outlet of the first-stage purification device is switchable through a pipeline connected to said water supply port; and An ultrafiltration membrane group filter, the ultrafiltration membrane group filter is located downstream of the first-stage purification device and is used to further filter water from the first-stage purification device, wherein the outlet of the ultrafiltration membrane group filter The water port is switchably connected to the water supply port through a pipe. 5. slightly acidic hypochlorous acid water production equipment according to claim 4, is characterized in that, described purification device further comprises reverse osmosis membrane filter, and described reverse osmosis membrane filter is positioned at described ultrafiltration membrane group filter downstream and used to further filter the water from the ultrafiltration membrane group filter, wherein the water outlet of the reverse osmosis membrane filter is switchably connected to the water supply port through a pipeline. 6. slightly acidic hypochlorous acid water production equipment according to claim 5, is characterized in that, described slightly acidic hypochlorous acid water production equipment also comprises electrodeionization device, and described electrodeionization device is positioned at described reverse osmosis The membrane filter is downstream and used to further filter the water from the reverse osmosis membrane filter, and the water outlet of the electrodeionization device is switchably connected to the water supply port through a pipe. 7. slightly acidic hypochlorous acid water production equipment according to claim 6, is characterized in that, described first stage purifier comprises softening filter, and described storage tank comprises deionized water storage tank, and described deionized water storage tank An ionized water storage tank is located downstream of the softening filter for storing deionized water from the softening filter, and an outlet of the deionized water storage tank is switchably connected to the water supply port through a pipeline. 8. slightly acidic hypochlorous acid water production equipment according to claim 7, is characterized in that, described water storage tank comprises drinking water storage tank and high-purity water storage tank, and described drinking water storage tank is positioned at described super The downstream of the filter membrane group filter is connected with the water outlet of the ultrafiltration membrane group filter, and is used to store drinking water from the ultrafiltration membrane group filter; the high-purity water storage tank is located at the reverse osmosis membrane The downstream of the filter is connected with the water outlet of the reverse osmosis membrane filter for storing the high-purity water from the reverse osmosis membrane filter; wherein the water outlet of the drinking water storage tank and the high-purity water storage tank It is switchably connected to the water supply port through a pipe. 9. slightly acidic hypochlorous acid water production equipment according to claim 8, is characterized in that, described storage tank also comprises ultrapure water storage tank, and described ultrapure water storage tank is positioned at described electrodeionization downstream of the device and connected to the water outlet of the electrodeionization device for storing ultrapure water from the electrodeionization device; the outlet of the ultrapure water storage tank is switchably connected to the water supply through a pipeline mouth. 10. The slightly acidic hypochlorous acid water production equipment according to claim 1, characterized in that, the slightly acidic hypochlorous acid water production equipment also comprises a controller, and the controller is arranged to control the outlet of the purification device. One of the water outlet and the water outlet of the slightly acidic hypochlorous acid water generator communicates with the water supply port.