CN209740843U

CN209740843U - Raw water purification device for recycling waste water

Info

Publication number: CN209740843U
Application number: CN201920173494.1U
Authority: CN
Inventors: 宋新权; 宋海娇
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-01-31
Filing date: 2019-01-31
Publication date: 2019-12-06
Anticipated expiration: 2029-01-31

Abstract

The utility model discloses a waste water cyclic utilization's raw water purification device relates to the relevant field of pure water manufacturing equipment, specifically is a waste water cyclic utilization's raw water purification device, aims at solving the extravagant technical problem that leads to the application cost height of current reverse osmosis equipment backwash water. The structure is as follows: the improved water purifier is characterized in that a settling tank is additionally arranged between the water inlet pipe and the quartz sand filter, a porous filler with a high specific surface area is filled in the settling tank, the water inlet pipe is communicated with the upper part of the settling tank, the water inlet pipeline of the quartz sand filter is communicated with the lower part of the settling tank, and the backwashing pipeline a of the quartz sand filter and the backwashing pipeline b of the activated carbon filter are communicated with the upper part of the settling tank.

Description

raw water purification device for recycling waste water

Technical Field

The utility model relates to a pure water manufacturing equipment related field specifically is a raw water purification device of waste water cyclic utilization.

Background

with the development of economy, the problem of environmental pollution has become an important issue that is not ignored in the present society. Among them, the quality of drinking water, which is closely related to the life of people, is also receiving more and more attention. At present, among a plurality of water treatment equipment at water terminals, the treatment equipment adopting the reverse osmosis technology has the smallest filtration pore size, the highest impurity removal rate and the highest quality of the obtained purified water, is the first choice for producing and manufacturing the purified water, and therefore, the reverse osmosis treatment equipment becomes the mainstream of the current market.

The existing reverse osmosis treatment equipment sequentially comprises a raw water tank, a raw water pump, a quartz sand filter, an activated carbon filter, a security filter element, a reverse osmosis assembly and a water storage device. The existing part of equipment is additionally provided with a recovery tank to recover the formed concentrated water to the recovery tank to be mixed with raw water for subsequent filtering procedures, so that waste caused by direct discharge of the concentrated water is avoided; as for quartz sand filters and activated carbon filters, as the service life of the quartz sand filters and activated carbon filters increases, quartz sand and activated carbon can be impacted and compacted, so that the quartz sand and the activated carbon need to be loosened through back washing, and simultaneously mud sand precipitated in the quartz sand and the activated carbon needs to be washed out, so that the filtering precision and efficiency are guaranteed.

in addition, in the existing reverse osmosis raw water purification treatment equipment, raw water directly enters a quartz sand filter through a raw water pump after coming out of a raw water tank, and due to the fact that impurities in the raw water are more, the quartz sand filter, an active carbon filter and a security filter element are subjected to higher filtering pressure, more mud and sand are mixed in the filter quickly, but due to the waste of backwashing water, backwashing can not be carried out at higher frequency, so that the filtering efficiency and precision are lowered, and the technological requirements can not be met.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving the extravagant technical problem that leads to the application cost high of current reverse osmosis equipment backwash water. Therefore, the utility model provides a raw water purification device for recycling waste water.

The utility model provides a technical scheme that its technical problem adopted is:

the utility model provides a waste water cyclic utilization's former water purification installation, includes inlet tube, quartz sand filter, activated carbon filter, at least one-level reverse osmosis subassembly, the outlet pipe that communicates in proper order, the reverse osmosis subassembly includes reverse osmosis booster pump and communicates in the reverse osmosis filter of reverse osmosis booster pump rear, its characterized in that: the improved water purifier is characterized in that a settling tank is additionally arranged between the water inlet pipe and the quartz sand filter, a porous filler with a high specific surface area is filled in the settling tank, the water inlet pipe is communicated with the upper part of the settling tank, the water inlet pipeline of the quartz sand filter is communicated with the lower part of the settling tank, and the backwashing pipeline a of the quartz sand filter and the backwashing pipeline b of the activated carbon filter are communicated with the upper part of the settling tank.

Furthermore, a circuitous raw water channel is arranged in the settling tank.

Furthermore, a plurality of longitudinally-arranged partition plates are arranged in the settling tank to divide the internal space of the settling tank into a plurality of compartments, only an upper gap is formed between the upper end of each partition plate and the upper wall of the settling tank or a lower gap is formed between the lower end of each partition plate and the lower wall of the settling tank, the upper gaps and the lower gaps formed by all the partition plates are alternately arranged from left to right, the first partition plate forms the lower gap, the last partition plate forms the upper gap, the water inlet pipe, the back flushing pipeline a of the quartz sand filter and the back flushing pipeline b of the activated carbon filter are communicated with the upper part of the first compartment, and the water inlet pipeline of the quartz sand filter is communicated with the lower part of the last compartment.

Furthermore, a spray head is fixed on the upper part of the first compartment, the water inlet pipe, the back washing pipeline a of the quartz sand filter and the back washing pipeline b of the activated carbon filter are communicated with the spray head, a filter element is arranged on the lower part of the last compartment, and the water inlet pipeline of the quartz sand filter is communicated with the filter element.

As a further improvement of the technical scheme, a concentrated water pipeline of the reverse osmosis filter is communicated with the upper part of the settling tank, and the lower part of the settling tank is also communicated with a first non-drinking water conveying pipeline.

As a further improvement of the technical scheme, the device also comprises a concentrated water recycling and circulating device positioned between the settling tank and the last stage of reverse osmosis component, wherein the concentrated water recycling and circulating device comprises a water inlet tank, a water outlet tank and a concentrated water tank, the water inlet tank is communicated with an output pipeline of a previous stage mechanism, the water outlet tank is communicated with an input pipeline of a next stage mechanism of the mechanism, and the concentrated water tank is communicated with a concentrated water pipeline of a next stage or a next multistage reverse osmosis filter; a first water level controller is arranged in the water inlet tank, and the first water level controller controls the opening and closing of an output pipeline of the upper-stage mechanism according to the water level of the water inlet tank to realize the water level control of the water inlet tank; the water inlet tank is communicated with the water outlet tank through a first water inlet mechanism, the first water inlet mechanism controls water to flow into the water outlet tank from the water inlet tank, a second water level controller is arranged in the water outlet tank, and the second water level controller controls the first water inlet mechanism to be opened and closed according to the water level of the water outlet tank so as to realize the water level control of the water outlet tank; the water inlet tank is communicated with the concentrated water tank through a second water inlet mechanism, the second water inlet mechanism controls water to flow into the concentrated water tank from the water inlet tank, a third water level controller is arranged in the concentrated water tank, and the third water level controller controls the second water inlet mechanism to be opened and closed according to the water level of the concentrated water tank so as to realize the water level control of the concentrated water tank; the upper part of the concentrated water tank is communicated with the water inlet tank, and the concentrated water tank is communicated with a second non-drinking water conveying pipeline.

Preferably, the concentrated water recycling device comprises a box body, a transverse partition plate is arranged in the middle of the box body to divide the inner space of the box body into an upper area and a lower area, a longitudinal partition plate is arranged in the middle of the upper surface of the transverse partition plate to divide the upper area into an upper left area and an upper right area, the upper left area forms the water inlet tank, the upper right area forms the concentrated water tank, the lower area forms the water outlet tank, and a gap is reserved between the upper end of the longitudinal partition plate and the top wall of the box body to enable the upper part of the concentrated water tank to be communicated with the water inlet tank.

Preferably, the first water inlet mechanism and the second water inlet mechanism are electromagnetic valves, the first water inlet mechanism is arranged at the left part of the transverse partition plate, and the second water inlet mechanism is arranged at the lower part of the longitudinal partition plate.

Further, the outlet pipe intercommunication has water storage device, water storage device includes inclosed water storage tank and inclosed inflation gasbag, the top and the outlet pipe intercommunication of water storage tank, be provided with the first valve of its break-make of control on the outlet pipe, the water storage tank through be located its top the connecting tube with inflation gasbag communicates with each other, the bottom of water storage tank is provided with pure water output pipeline, inflation gasbag intercommunication has ozone input pipeline, be provided with the second valve of its break-make of control on the ozone input pipeline.

Furthermore, the top of the water storage tank is provided with a one-way exhaust valve with a preset pressure value.

The utility model has the advantages that: the utility model provides a raw water purification device for wastewater recycling, which is characterized in that a settling tank is additionally arranged between a water inlet pipe and a quartz sand filter, and before raw water enters the quartz sand filter, the raw water is firstly subjected to primary sedimentation and filtration, so that the content of solid impurities in the raw water is greatly reduced, the pressure on a subsequent filter is reduced, and the precision and the efficiency of filtration are ensured; the backwashing wastewater generated by the subsequent filtration is recycled to the settling tank for recycling, so that the water resource is greatly saved, the environment is more protected, and the application cost is reduced; due to the cyclic utilization of the waste water, the quartz sand filter and the activated carbon filter can be backwashed more frequently, and the filtering efficiency and precision are further improved.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic structural view of the settling tank of the present invention;

FIG. 3 is a schematic structural view of the circulation box of the present invention;

Fig. 4 is a schematic structural view of the water storage device of the present invention.

Detailed Description

Referring to fig. 1, the utility model discloses a waste water cyclic utilization's raw water purification device, including inlet tube 1, quartz sand filter 3, activated carbon filter 4, at least one-level reverse osmosis subassembly, the outlet pipe 7 that communicate in proper order, the reverse osmosis subassembly includes reverse osmosis booster pump 61 and communicates in the reverse osmosis filter 62 at reverse osmosis booster pump 61 rear, its characterized in that: the improved quartz sand filter is characterized in that a settling tank 8 is additionally arranged between the water inlet pipe 1 and the quartz sand filter 3, a porous filler 81 with a high specific surface area is filled in the settling tank 8, the water inlet pipe 1 is communicated with the upper part of the settling tank 8, a water inlet pipeline of the quartz sand filter 3 is communicated with the lower part of the settling tank 8, and a backwashing pipeline a31 of the quartz sand filter 3 and a backwashing pipeline b41 of the activated carbon filter 4 are communicated with the upper part of the settling tank 8. The main innovation point of this device lies in the setting of settling tank 8, and settling tank 8 is not simple here filters, and more importantly makes the back flush water that will be arranged outward originally that is mingled with a large amount of silt sand utilize once more with the raw water mixture as the recovery department of follow-up filter waste water, has solved the problem of water waste, simultaneously because the reuse of back flush water, can be more frequent carry out the back flush to quartz sand filter 3 and active carbon filter 4, further improve filterable efficiency and precision. The porous filler 81 with high specific surface area can be a common precipitation filter material such as ceramsite, organic porous filter material and the like. Conventionally, in order to ensure the water inlet pressure, a raw water pump 2 can be arranged between the settling tank 8 and the quartz sand filter 3, and a security filter element 5 can be arranged between the activated carbon filter 4 and the first-stage reverse osmosis assembly.

Further, a circuitous raw water channel is arranged in the settling tank 8. The circuitous shape, namely the bending shape, mainly aims at increasing the filtering path length and improving the precipitation and filtration effects in a limited space. Preferably, a plurality of partition plates 82 are longitudinally arranged in the settling tank 8 to divide the internal space of the settling tank 8 into a plurality of compartments 83, only an upper gap is formed between the upper end of a single partition plate 82 and the upper wall of the settling tank 8 or a lower gap is formed between the lower end of the single partition plate 82 and the lower wall of the settling tank 8, the upper gaps and the lower gaps formed by all the partition plates 82 are alternately arranged from left to right, the first partition plate 82 forms the lower gap, the last partition plate 82 forms the upper gap, the water inlet pipe 1, the back-flushing pipeline a31 of the quartz sand filter 3 and the back-flushing pipeline b41 of the activated carbon filter 4 are all communicated with the upper part of the first compartment 3583, and the water inlet pipe of the quartz sand filter 3 is communicated with the lower part of the last compartment 83. With such a structure, when raw water enters, the raw water flows in a detour manner along the large-section long-flow compartment 83 in the settling tank 8, so that the settling and filtering effect of the settling tank 8 on the raw water can be improved, the filtering strength of quartz sand and active carbon is reduced, and the filtering precision and efficiency are improved. The terms "first" and "last" are used herein with respect to the flow path of the water. In detail, a raw water level controller is arranged in the settling tank 8 and is used for controlling the water level of raw water in the settling tank 8.

Further, a spray head 84 is fixed on the upper portion of the first compartment 83, the water inlet pipe 1, the back flush pipeline a31 of the quartz sand filter 3 and the back flush pipeline b41 of the activated carbon filter 4 are all communicated with the spray head 84, a filter element 85 is arranged on the lower portion of the last compartment 83, and the water inlet pipeline of the quartz sand filter 3 is communicated with the filter element 85. The arrangement of the spray header 84 enables raw water and backwashing water to enter the settling tank 8 in a state of large area, low impact and low flow rate, and avoids the filler in the settling tank 8 from being compacted due to large impact force. The filter element 85 can further filter the water filtered by the settling tank 8, so as to further reduce the solid content in the water.

As a structure for recycling the concentrate, the concentrate pipe 621 of the reverse osmosis filter 62 communicates with the upper portion of the settling tank 8, and the lower portion of the settling tank 8 further communicates with the first non-potable water supply pipe 86. The concentrated water formed by reverse osmosis of all stages is recycled into the settling tank 8 and mixed with the raw water to achieve the purpose of recycling. Compared with the prior art, the device saves the arrangement of a special recovery box and reduces the equipment cost. The conductivity of the water that the circulation was retrieved back behind the reverse osmosis can rise greatly, if retrieve the dense water of reverse osmosis to the setting tank 8 in for a long time, can lead to the conductivity of the mixed water of raw water and dense water too high, so this device sets up first non-drinking water pipeline 86 in the lower part of setting tank 8, regularly discharges the mixed water, reaches the effect of the conductivity of dilution water to the discharge of the water here also is used for places such as bathroom, horticulture, can not waste.

As a further improvement of the above technical solution, the system further comprises a concentrated water recycling device 9 located between the settling tank 8 and the last stage reverse osmosis module, wherein the concentrated water recycling device 9 comprises a water inlet tank 91, a water outlet tank 92 and a concentrated water tank 93, the water inlet tank 91 is communicated with an output pipeline of the previous stage mechanism, the water outlet tank 92 is communicated with an input pipeline of the next stage mechanism of the mechanism, and the concentrated water tank 93 is communicated with a concentrated water pipeline 621 of the next or next multistage reverse osmosis filter 62; a first water level controller 911 is arranged in the water inlet tank 91, and the first water level controller 911 controls the opening and closing of an output pipeline of an upper-stage mechanism according to the height of the water level of the water inlet tank 91 to realize the water level control of the water inlet tank 91; the water inlet tank 91 is communicated with the water outlet tank 92 through a first water inlet mechanism 912, the first water inlet mechanism 912 controls water to flow into the water outlet tank 92 from the water inlet tank 91, a second water level controller 921 is arranged in the water outlet tank 92, and the second water level controller 921 controls the first water inlet mechanism 912 to be opened and closed according to the water level of the water outlet tank 92 so as to realize the water level control of the water outlet tank 92; the water inlet tank 91 is communicated with the rich water tank 93 through a second water inlet mechanism 913, the second water inlet mechanism 913 controls water to flow from the water inlet tank 91 into the rich water tank 93, a third water level controller 931 is arranged in the rich water tank 93, and the third water level controller 931 controls the second water inlet mechanism 913 to open and close according to the water level of the rich water tank 93 so as to realize the water level control of the rich water tank 93; the upper part of the concentrated water tank 93 is communicated with the water inlet tank 91, and the concentrated water tank 93 is communicated with a second non-drinking water conveying pipeline 94. The term "between the settling tank 8 and the last reverse osmosis module" refers to any two adjacent mechanisms, which are a part of the whole filtration system, such as raw water pump, quartz sand filter, activated carbon filter, cartridge filter, reverse osmosis module, etc. The following describes the background and innovation points of the concentrated water recycling device 9:

At present, in order to ensure the quality of prepared water and the service life of a reverse osmosis membrane and simultaneously consider the discharge amount of concentrated water, common small and medium-sized equipment fixes the proportion of purified water and concentrated water at 1: 3, that is, three tons of wastewater should be discharged for every one ton of purified water produced. Therefore, a large amount of concentrated water can be generated in the reverse osmosis process of producing purified water, and even if the concentrated water is used in places such as a toilet and the like, the concentrated water is very large in quantity and is supplied more than required, so that the large amount of concentrated water still needs to be directly discharged, and the waste of water resources is caused. In order to overcome the problem, a recovery tank is additionally arranged in the prior part of enterprises before reverse osmosis, concentrated water formed by reverse osmosis flows back to the recovery tank and is directly mixed with water in the recovery tank, but the problem of water concentration exists: the conductivity of the concentrated water formed after reverse osmosis is high, the concentrated water flows back to the recovery tank and is mixed with the raw water, the overall conductivity of the raw water can be improved, the conductivity of the raw water in the recovery tank can be continuously increased along with the accumulation of time or the mixing of multi-stage reverse osmosis concentrated water, the conductivity of the raw water in the recovery tank can always reach the upper limit value of the conductivity of the raw water allowed by the reverse osmosis membrane, and the reverse osmosis easily causes the blockage of the reverse osmosis membrane at the moment and influences the quality of the produced water. The concentrated water recycling device 9 is used for solving the technical problem that the conductivity of raw water is greatly increased by the existing reverse osmosis concentrated water recycling equipment, concentrated water formed by reverse osmosis is recycled to a concentrated water tank 93, and most of the concentrated water is discharged to non-drinking water places through a non-drinking water conveying pipeline, so that the concentrated water is recycled; when the interior dense water of dense water case 93 is too much, the confession is greater than asking, the upper portion of accessible dense water case 93 overflows to the case 91 of intaking, mix with the water of intaking in the case 91, though the conductivity that can make the water of intaking in the case 91 promotes to some extent, but this just can take place when dense water is too much, and only few part dense water can get into case 91 of intaking, still can pass through twice dilution of case 91 and play water tank 92 of intaking in proper order, relative current dense water recovery plant's direct mixing, it is less to water conductivity influence, greatly reduced the pile up speed of raw water conductivity.

Further, the concentrated water recycling device 9 includes a tank 95, a transverse partition plate 96 is provided in the middle of the tank 95 to partition the internal space of the tank 95 into an upper region and a lower region, a longitudinal partition plate 97 is provided in the middle of the upper surface of the transverse partition plate 96 to divide the upper region into an upper left region and an upper right region, the upper left region forms the water inlet tank 91, the upper right region forms the concentrated water tank 93, the lower region forms the water outlet tank 92, and a gap is left between the upper end of the longitudinal partition plate 97 and the top wall of the tank 95 to communicate the upper portion of the concentrated water tank 93 with the water inlet tank 91. The preferable mechanism of the technical scheme is that one box body 95 is divided into three areas by the longitudinal partition plate 97 and the transverse partition plate 96 to form the water inlet box 91, the water outlet box 92 and the concentrated water box 93 respectively, the structure is simpler, the cost is low, and the preferable relative positions of the water inlet box 91, the water outlet box 92 and the concentrated water box 93 are provided, so that more water inlet mechanisms are selected. Due to the positional relationship of the three tanks 95, the first water inflow mechanism 912 and the second water inflow mechanism 913 are both solenoid valves, the first water inflow mechanism 912 is provided at the left portion of the horizontal partition plate 96, and the second water inflow mechanism 913 is provided at the lower portion of the vertical partition plate 97. Therefore, the water can flow by utilizing gravity, and the cost of the water inlet mechanism is reduced. Of course, the water inlet mechanism may be a common structure such as a ball valve, and the water level controller may also be a structure such as a floating ball liquid level meter.

Further, the concentrated water pipe 621 extends into the bottom of the concentrated water tank 93, and the second non-potable water delivery pipe 94 is communicated with the bottom of the concentrated water tank 93. Thus, the concentrated water firstly reaches the bottom of the concentrated water tank 93, the concentrated water with high concentration is arranged below the concentrated water tank 93, the concentrated water with low concentration is arranged at the upper part of the concentrated water tank 93, the second non-drinking water conveying pipeline 94 preferentially discharges the concentrated water with high concentration at the bottom, and when the water in the concentrated water tank 93 overflows to the water inlet tank 91, the concentrated water with relatively low concentration at the upper part of the concentrated water tank 93 overflows, so that the influence is smaller.

Further, a forced drain valve 98 is disposed on the second non-potable water delivery pipe 94. When the amount of wastewater entering the concentrate tank 93 is much greater than the amount discharged by the second non-potable water supply line 94, the concentration of concentrate in the concentrate tank 93 will become higher and higher, and to prevent excess high-concentration water from the reverse osmosis cycle from entering the inlet tank 91, the forced drain valve 98 may be actuated to drain a portion of the concentrate tank 93.

The following briefly describes the preferred locations of the two concentrated water recovery and circulation devices 9 in the raw water purification device: one is that the above-mentioned wastewater recycling device is additionally arranged between the security filter element 5 and the first-stage reverse osmosis component, the water inlet tank 91 is communicated with the output pipeline of the security filter element 5, the wastewater tank is communicated with the concentrated water pipelines 621 of all the reverse osmosis components, and the water outlet tank 92 is communicated with the input pipeline of the first-stage reverse osmosis component. Therefore, all the subsequent reverse osmosis concentrated water can be recovered into the concentrated water tank 93 of the concentrated water recovery and circulation device 9, and the conductivity of the water in the water outlet tank 92 cannot be greatly influenced while the concentrated water is recycled; and the other is that the concentrated water recycling device 9 is arranged between at least one group of reverse osmosis modules of adjacent stages, the water inlet tank 91 is communicated with the output pipeline of the reverse osmosis module of the previous stage, and the waste water tank is communicated with the concentrated water pipeline 621 of the reverse osmosis module of all the stages after the previous stage. Preferably, the concentrate recovery and circulation device 9 is arranged between the reverse osmosis modules of any one group of adjacent stages. Like this, because the effect of concentrated water recycling device 9 to the recovery recirculation of concentrated water for needn't consider that the reverse osmosis process produces too much concentrated water, thereby reverse osmosis ratio that can be bigger at the reverse osmosis process carries out reverse osmosis, has improved the quality of preparing water, has improved reverse osmosis membrane's life simultaneously.

As a further improvement of the above technical solution, the water outlet pipe 7 is communicated with a water storage device, the water storage device includes a closed water storage tank 71 and a closed expansion air bag 72, the top of the water storage tank 71 is communicated with the water outlet pipe 7, the water outlet pipe 7 is provided with a first valve for controlling the on-off state of the water storage tank, the water storage tank 71 is communicated with the expansion air bag 72 through a connecting pipe 74 at the top of the water storage tank, the bottom of the water storage tank 71 is provided with a purified water output pipe 75, the expansion air bag 72 is communicated with an ozone input pipe 76, and the ozone input pipe 76 is provided with a second valve for controlling the on-off state of the. The background and innovation points of the water storage device are discussed as follows:

The existing purified water prepared by purifying equipment generally has two storage modes, one mode adopts a normal-pressure water storage tank to store the purified water, and the structure mainly aims at medium and large-sized equipment and adopts open water storage, so that the purified water is not polluted again, higher requirements are required for equipment installation environment and places, such as requirement of environment sealing and no pollution, disinfection and epidemic prevention are carried out regularly, special persons are required to take charge of operation, the qualified persons of the non-physical examination are limited to come in and go out, and the like, the application cost is high, and the operation is very inconvenient; the other type is a pressure water storage tank, mainly an air bag type pressure water storage tank, which mainly aims at small and medium-sized equipment, an iron ring is fixed in the middle of the tank, a rubber bag is hermetically arranged on the iron ring, so that the inner space of the tank is divided into two parts by the rubber bag, the lower part is inflated, water is stored in the upper part, water is forced to enter the upper part to enable the air pressure of the lower part to be overlarge, water is discharged under the action of pressure difference during use, flexible and convenient installation conditions are given to the small and medium-sized equipment, but the water storage tank is limited by the process and the cost and generally not too large, the common water storage capacity is 3.2-11 gallons, the storage capacity is small, the flow rate is slow, the use of a water purifier is limited, and the. In addition, the pressure water storage tank has a limited service life, and generally, problems such as pressure reduction or airbag rupture occur in about five years. The water storage device aims to solve the technical problem that the existing water storage device cannot meet the requirements on installation environment and cost at the same time. The airtightness of the whole device is matched with the disinfection and sterilization effect of ozone, so that a sterile environment can be provided for purified water, the purified water is prevented from being polluted, and the installation environment requirement of the water storage device is lowered; and because the ingenious integrated configuration of water storage tank 71 and inflation gasbag 72, can ensure the atmospheric pressure in the water storage tank 71 to maintain at the ordinary pressure, rely on water head and gravity to go on and go out water, not only improved the life of equipment, still saved current pressurization equipment structure and technology, greatly reduced the cost that the pure water stored, be applicable to the equipment of various sizes of small, medium and large. In addition, the device has low cost, simple manufacture and low installation environment requirement, so that the water storage capacity of the device can be large, the water yield is large and stable, and the water purifier can be applied to other aspects such as bathing and the like.

Further, a water storage tank water level controller is arranged in the water storage tank 71, and the water storage tank water level controller comprises a sensor for detecting the water level in the water storage tank 71 and a control part for controlling the opening and closing of the first valve. The sensor controls the opening and closing of the first valve according to the level of the water in the water storage tank 71, thereby realizing the control of the water level in the water storage tank 71. Therefore, the automatic control of the water level can be realized, and the labor is saved.

As a further optimization of the above water trap, the water trap further includes a support bracket 78, and the inflatable bladder 72 is supported in the support bracket 78. The limit of the expansion air bag 72 is convenient, and the structural stability of the device is improved.

As a further improvement of the water storage device, the top of the water storage tank 71 is provided with a one-way exhaust valve 77 with a preset pressure value. Because the total amount of gas in the closed space formed by the expansion air bag 72 and the water storage tank 71 is increased due to the regular input of ozone, a one-way exhaust valve 77 with a preset pressure value is additionally arranged in the device, when the condition occurs, the ozone can be discharged outwards from the one-way exhaust valve 77, and the phenomenon that the air pressure in the closed space is overlarge is avoided. The one-way exhaust valve 77 is herein capable of being preset to a pressure value, and the one-way valve is conducted only when the set pressure value is reached, and the preset pressure value may be set to a value slightly higher than the atmospheric pressure.

As a further improvement of the water storage device, an ultraviolet lamp 79 is arranged on the top of the water storage tank 71. It is current generally to set up the pipeline ultraviolet lamp on the pipeline and disinfect, like this because the mobility of water, lead to the disinfection time extremely short, the disinfection effect is difficult to ensure, so this device sets up ultraviolet lamp 79 at the top of water storage tank 71, the pure water is when water storage tank 71 stores, can all-round long-time disinfect to the water tank inside, because the water tank volume is big, the water storage is many, external velocity of flow is less relatively voluminous, consequently, its irradiation time is long, disinfection's effectual, its non-general pipeline ultraviolet lamp of effect can be comparable.

Further, a purified water circulating pipeline 70 is further arranged at the top of the water storage tank 71, and the purified water circulating pipeline 70 is communicated with the tail end of a purified water supply pipe network. When no people use the purified water for a long time, the purified water supply pipe network terminal can flow back to the water storage tank 71 through the purified water circulating pipeline 70, so that the purified water is circulated, the quality problem that the purified water possibly appears when no people drink the purified water in the pipeline for a long time is avoided, and the purified water is also one of the requirements of the department of housing and construction and the health care committee on direct drinking water of the pipe network. The purified water of the main pipe network returns to the normal-pressure sterile water storage tank through the circulating pipeline at the tail end of the main pipe network for secondary storage and disinfection, so that the quality and safety of the drinking water are further guaranteed.

While the invention has been particularly shown and described with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. Waste water cyclic utilization's former water purification installation, including inlet tube (1), quartz sand filter (3), activated carbon filter (4), at least one-level reverse osmosis subassembly, outlet pipe (7) that communicate in proper order, reverse osmosis subassembly includes reverse osmosis booster pump (61) and communicates in reverse osmosis filter (62) at reverse osmosis booster pump (61) rear, its characterized in that: set up precipitation tank (8) between inlet tube (1) and quartz sand filter (3), precipitation tank (8) intussuseption is filled with porous high specific surface area filler (81), inlet tube (1) with the upper portion intercommunication of precipitation tank (8), the inlet channel of quartz sand filter (3) with the lower part intercommunication of precipitation tank (8), back flush pipeline an (31) of quartz sand filter (3) and back flush pipeline b (41) of active carbon filter (4) all with the upper portion intercommunication of precipitation tank (8).

2. The raw water purification apparatus for wastewater recycling according to claim 1, characterized in that: and a circuitous raw water channel is arranged in the settling tank (8).

3. The raw water purification apparatus for wastewater recycling according to claim 2, characterized in that: the sedimentation tank is characterized in that a plurality of longitudinally-arranged partition plates (82) are arranged in the sedimentation tank (8) to divide the inner space of the sedimentation tank (8) into a plurality of compartments (83), only an upper gap is formed between the upper end of each partition plate (82) and the upper wall of the sedimentation tank (8) or a lower gap is formed between the lower end of each partition plate and the lower wall of the sedimentation tank (8), the upper gaps and the lower gaps formed by all the partition plates (82) are alternately arranged from left to right, the first partition plate (82) forms the lower gap, the last partition plate (82) forms the upper gap, the water inlet pipe (1), the back flushing pipeline a (31) of the quartz sand filter (3) and the back flushing pipeline b (41) of the activated carbon filter (4) are communicated with the upper part of the first compartment (83), and the water inlet pipeline of the quartz sand filter (3) is communicated with the lower part of the last compartment (83).

4. The apparatus for purifying raw water for recycling wastewater as set forth in claim 3, wherein: the upper portion of the first compartment (83) is fixed with a spray header (84), the back flush pipeline a (31) of the water inlet pipe (1), the quartz sand filter (3) and the back flush pipeline b (41) of the activated carbon filter (4) are communicated with the spray header (84), the lower portion of the last compartment (83) is provided with a filter element (85), and the water inlet pipeline of the quartz sand filter (3) is communicated with the filter element (85).

5. the apparatus for purifying raw water with recycled wastewater as claimed in any one of claims 1 to 4, wherein: a concentrated water pipeline (621) of the reverse osmosis filter (62) is communicated with the upper part of the settling tank (8), and the lower part of the settling tank (8) is also communicated with a first non-drinking water conveying pipeline (86).

6. The apparatus for purifying raw water with recycled wastewater as claimed in any one of claims 1 to 4, wherein: the device is characterized by further comprising a concentrated water recycling and circulating device (9) located between the settling tank (8) and the last stage of reverse osmosis component, wherein the concentrated water recycling and circulating device (9) comprises a water inlet tank (91), a water outlet tank (92) and a concentrated water tank (93), the water inlet tank (91) is communicated with an output pipeline of a previous stage mechanism, the water outlet tank (92) is communicated with an input pipeline of a next stage mechanism of the mechanism, and the concentrated water tank (93) is communicated with a concentrated water pipeline (621) of a next stage or a next multistage reverse osmosis filter (62); a first water level controller (911) is arranged in the water inlet tank (91), and the first water level controller (911) controls the opening and closing of an output pipeline of an upper-stage mechanism according to the water level of the water inlet tank (91) to realize the water level control of the water inlet tank (91); the water inlet tank (91) is communicated with the water outlet tank (92) through a first water inlet mechanism (912), the first water inlet mechanism (912) controls water to flow into the water outlet tank (92) from the water inlet tank (91), a second water level controller (921) is arranged in the water outlet tank (92), and the second water level controller (921) controls the first water inlet mechanism (912) to be opened and closed according to the water level of the water outlet tank (92) so as to realize the water level control of the water outlet tank (92); the water inlet tank (91) is communicated with the concentrated water tank (93) through a second water inlet mechanism (913), the second water inlet mechanism (913) controls water to flow into the concentrated water tank (93) from the water inlet tank (91), a third water level controller (931) is arranged in the concentrated water tank (93), and the third water level controller (931) controls the second water inlet mechanism (913) to be opened and closed according to the water level of the concentrated water tank (93) to realize the water level control of the concentrated water tank (93); the upper part of the concentrated water tank (93) is communicated with the water inlet tank (91), and the concentrated water tank (93) is communicated with a second non-drinking water conveying pipeline (94).

7. The apparatus for purifying raw water with recycled wastewater as claimed in claim 6, wherein: concentrated water recovery circulating device (9) includes box (95), the middle part of box (95) is provided with cross slab (96) in order with the inner space partition of box (95) is regional for upper portion and lower part, the middle part of the upper surface of cross slab (96) is provided with vertical partition (97) in order with upper portion region divide into upper left region and upper right region, upper left region forms intake box (91), upper right region forms concentrated water tank (93), the lower part region forms outlet tank (92), leave the space between the upper end of vertical partition (97) and the roof of box (95) so that the upper portion of concentrated water tank (93) and intake box (91) intercommunication.

8. The apparatus for purifying raw water for recycling wastewater as claimed in claim 7, wherein: the first water inlet mechanism (912) and the second water inlet mechanism (913) are electromagnetic valves, the first water inlet mechanism (912) is arranged at the left part of the transverse partition plate (96), and the second water inlet mechanism (913) is arranged at the lower part of the longitudinal partition plate (97).

9. The apparatus for purifying raw water with recycled wastewater as claimed in any one of claims 1 to 4, wherein: the water storage device is communicated with the water outlet pipe (7), the water storage device comprises a closed water storage tank (71) and a closed expansion air bag (72), the top of the water storage tank (71) is communicated with the water outlet pipe (7), a first valve for controlling the on-off state of the water outlet pipe (7) is arranged on the water outlet pipe, the water storage tank (71) is communicated with the expansion air bag (72) through a connecting pipeline (74) positioned at the top of the water storage tank, a purified water output pipeline (75) is arranged at the bottom of the water storage tank (71), the expansion air bag (72) is communicated with an ozone input pipeline (76), and a second valve for controlling the on-off state of the ozone input pipeline (76) is arranged on the ozone input.

10. the raw water purification apparatus for wastewater recycling according to claim 9, characterized in that: the top of the water storage tank (71) is provided with a one-way exhaust valve (77) with a preset pressure value.