CN204173955U - The medical reverse osmose pure-water system of a kind of energy-saving and water-saving and water quality safety - Google Patents
The medical reverse osmose pure-water system of a kind of energy-saving and water-saving and water quality safety Download PDFInfo
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- CN204173955U CN204173955U CN201420467464.9U CN201420467464U CN204173955U CN 204173955 U CN204173955 U CN 204173955U CN 201420467464 U CN201420467464 U CN 201420467464U CN 204173955 U CN204173955 U CN 204173955U
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Abstract
The utility model discloses the medical reverse osmose pure-water system of a kind of energy-saving and water-saving and water quality safety, comprise with water-in, pure water outlet and the first-stage reverse osmosis pure water device of dense water out, described water-in is connected with high-pressure pump, described dense water out is connected with dense apparatus for recovering, described dense apparatus for recovering comprises housing and is arranged on the filtering membrane in housing, with reuse water outlet and wastewater outlet on described housing, wherein reuse water outlet is connected to the entrance of high-pressure pump by pipeline.The medical reverse osmose pure-water system of energy-saving and water-saving of the present utility model and water quality safety utilizes the surplus pressure of dense water the dense water treatment originally can only working as discharge of wastewater can be become the high-quality water inlet water source of first-stage reverse osmosis pure water device, and be treated as the reliable medical pure water of water conditioning further by first-stage reverse osmosis, energy consumption is little, decrease the consumption of tap water, significantly reduce medical waste water processing cost, there is obvious economic and social benefit.
Description
Technical field
The utility model relates to the water treatment by membrane field high to water quality safety requirement such as hospital, pharmacy, food-processing, tap water, particularly relates to the medical reverse osmose pure-water system of a kind of energy-saving and water-saving and water quality safety.
Background technology
Along with constantly improving of China's medical support system and implementing in full of Rural medical treatment insurance, newly-built and enlarging hospital rolls up, in the urgent need to water treatment device.Hospital central pure water supply system is important construction projects of newly-built hospital in recent years as Novel medical water treating equipment.Some hospital's pure water system designs are in the early time unreasonable, and equipment quality does not pass a test, and hydraulic pipe-line is lack of standardization, and stagnant water is many, needs frequent chemical disinfection, there is severe compromise.Recent years, hospital central pure water system had relatively consistent global design scheme: comprise pure water making system and pure water cyclic delivery system two portions.Pure water making system mainly produces three kinds of medicinal waters: can for the first-stage reverse osmosis pure water of most of section office, based on the hemodialysis water of two-pass reverse osmosis, further with ultrapure water prepared by mixed-bed resin or EDI on pure water basis.Pure water cyclic delivery system, again by the pure water of different quality, is transported to corresponding section office by 5-6 bar stainless steel pure water circulation line.Reverse osmosis main frame and working shaft adopt the using and the reserved design, with support equipment safe operation.Equipment PLC controls, fully automatic operation, also has specific conductivity, resistivity on-line monitoring instrument and central monitoring system etc.Hospital central pure water system changes different department in the past and is independently equipped with the traditional mode of water making device, effectively improves the water quality and quantity security assurance level of medicinal water, reduces medical-risk, also reduces management and the running cost of hospital.But new hospital pure water system objectively significantly increases the total scale of pure water transfer line, a hospital needs 5000 ~ ten thousand metres usually, which increases the risk of medicinal water secondary pollution.On the other hand, at each Subscriber Unit under the new situation, more strict requirement is proposed to energy-saving and water-saving, require the water use efficiency of conventional reverse osmosis to bring up to more than 90% from 75%.Improve reverse osmosis water reclamation rate and objectively will reduce effluent quality, pure electrical conductivity of water and organism (TOC) index will increase, and microorganism easily breeds, and even may occur large number of biological film on water delivery tube wall.So whole new hospital central authorities pure water system will keep water quality physical and chemical index and the long-term qualified of microbiological indicator will be severe challenges.
As everyone knows, have high salt concentration, organism and microorganism in the dense water of first-stage reverse osmosis, its pollutant load is nearly more than 4 times of tap water.Micro-filtration, macropore ultrafiltration almost do not have rejection effect to solvability salt and organism, bacterium, fungi, algae etc. temporarily can be removed by micro-filtration, ultra-filtration membrane, but virus and less microbes are through film (except the biology be adsorbed on water body recovery technology can except filtering).This filtered water water quality, far away from tap water, also has the chlorine residue of sterilization unlike tap water, still more containing high organism, can impel a large amount of Fast-propagation of microorganism.The source of microorganism is ubiquitous, even if filtered water starts to be " sterilized water ", as long as there is the assimilable organism of microorganism in water, just have the Reproduction Conditions of microorganism, organism is more, and microorganism just breeds sooner, more.Therefore, use this filtered water easily to cause brine corrosion and the microbial contamination of stainless steel pure water pipeline, there is medical security risks.Namely use the reuse water after low pressure reverse osmosis or nanofiltration process, its pollutant load is also the several times of normal pure water, will significantly reduce the biological safety of medicinal water.Therefore, to meet the conductivity indices of part medicinal water for standard, will should not be mixed into first-stage reverse osmosis pure water after the reuse of reverse osmosis concentrated water embrane method or directly be used as the medical washing water such as Operation theatre, obstetrics, Stomatological Department.
Medical central pure water system has in the industry cycle had relatively consistent global design scheme at present, the failure rate of equipment obviously reduces, but how to utilize reverse osmosis concentrated water (Routine purges 25%) further, reach energy-saving and water-saving object, the poor product water of this part water quality can be made again to meet medicinal water requirement, and water quality safety can be kept for a long time in long-distance transportation through pipeline system, this technical barrier never solves.
Utility model content
The utility model provides the medical reverse osmose pure-water system of a kind of energy-saving and water-saving and water quality safety, has less energy-consumption and the high feature of water use efficiency under the prerequisite ensureing water quality safety.
The technical scheme that the utility model technical solution problem adopts is:
The medical reverse osmose pure-water system of a kind of energy-saving and water-saving and water quality safety, comprise with water-in, pure water outlet and the first-stage reverse osmosis pure water device of dense water out, described water-in is connected with high-pressure pump, described dense water out is connected with dense apparatus for recovering, described dense apparatus for recovering comprises housing and is arranged on the filtering membrane in housing, with reuse water outlet and wastewater outlet on described housing, wherein reuse water outlet is connected to the entrance of high-pressure pump by pipeline.
The water inlet of first-stage reverse osmosis pure water device is the mixing water of the reuse water produced through pretreated tap water and dense apparatus for recovering.The pure water that usual first-stage reverse osmosis pure water device obtains is 0.75:1 with the ratio of water inlet, and the water namely after pressurization accounts for the pure water of total inflow 75% by first-stage reverse osmosis pure water device output, and the water that residue accounts for total inflow 25% is the dense water not directly used.The dense glassware for drinking water of discharging from first-stage reverse osmosis pure water device has certain high pressure, directly for dense apparatus for recovering, without the need to using high-pressure pump, can save the energy, having reduced energy consumption.The first-stage reverse osmosis pure water device being 1.5MPa for an operating pressure, the dense water pressure of output is about 1.2MPa, can the little a little dense apparatus for recovering being provided with ultra-low-pressure reverse osmosis or nanofiltration membrane of selection work pressure ratio first-stage reverse osmosis pure water device.
As preferably, described filtering membrane is ultra-low-pressure reverse osmosis film or nanofiltration membrane.Described ultra-low-pressure reverse osmosis belongs to the one of reverse osmosis membrane, and operating pressure is lower than the reverse osmosis membrane of routine, and usual operating pressure is lower than 1MPa.
As preferably, described filtering membrane is reverse osmosis membrane, is also connected with topping-up pump between described first-stage reverse osmosis pure water device and dense apparatus for recovering.
Also topping-up pump is connected with between described first-stage reverse osmosis pure water device and dense apparatus for recovering.In order to the operating pressure of dense Water Sproading and the operating pressure of first-stage reverse osmosis pure water device are consistent, the small-sized topping-up pump that the pipeline connecting first-stage reverse osmosis pure water device and dense apparatus for recovering installs additional, topping-up pump only needs supercharging about 0.3MPa namely to can be used for the dense apparatus for recovering of follow-up about 1.5MPa working pressure.
The a small amount of dense water of NF concentrated water reuse device output is as discharge of wastewater, and the reuse water of NF concentrated water reuse device output returns first-stage reverse osmosis previous crops and supplements for water inlet, reduces tap water consumption, improves water utilization rate.
As preferably, the entrance of described dense apparatus for recovering is also connected with online Scale inhibitors adding set and mixing device.The dense water flowed out from first-stage reverse osmosis pure water device is due to containing more insoluble inorganic salt, these salt are easily reunited and are attached to metallic surface and cause pipeline or equipment blocking, therefore be necessary before dense apparatus for recovering, arrange online Scale inhibitors adding set, described online Scale inhibitors adding set can add Scale inhibitors and reduce fouling generation in the dense water of trend.
As preferably, described water-in, dense water out and wastewater outlet are equipped with flow control valve.Rate of recovery height can according to the valve regulation of practical situation Flow-rate adjustment.
The medical reverse osmose pure-water system of a kind of energy-saving and water-saving and water quality safety can make the total water use efficiency of medical reverse osmose pure-water system bring up to about 85% ~ 95% from conventional 75%.Reclamation set takes full advantage of the high-pressure energy of dense water, reaches energy-conservation object.Energy consumption only about the 0.3KWh (about 0.2 yuan) of every side's reuse water, even without additional energy, cost recovery is far below tap water.Reverse osmose pure-water saltiness and the organism of rear section apparatus recovery are higher than leading portion first-stage reverse osmosis pure water, if the first-stage reverse osmosis pure water tank be directly mixed into above will cause overall deteriorating water quality, and unsuitable life-time service.Therefore, the method solving water quality security allows the reuse water of back segment enter first-stage reverse osmosis water inlet, be equivalent to this part reuse pure water and instead of corresponding tap water, mixed raw water quality is better, fully ensure that the pure water quality of a whole set of medical reverse osmose pure-water system.
The utility model compared with prior art, has following beneficial effect:
1, be independently equipped with the situation of distributing water making device compared to different department in the past, the medical reverse osmose pure-water system of energy-saving and water-saving of the present utility model and water quality safety efficiently solves equipment control difficulty, water quality reaching standard is difficult, running cost is high problem.
2, the medical reverse osmose pure-water system of energy-saving and water-saving of the present utility model and water quality safety, only need very low energy consumption or do not need additional energy, originally the wastewater treatment can only discharged just can be become the high-quality water inlet water source of first-stage reverse osmosis pure water device by the surplus pressure with the dense water side of first-stage reverse osmosis pure water device discharge, and is treated as the reliable medical pure water of water conditioning further by first-stage reverse osmosis.Dense apparatus for recovering only additionally increases about 0.2 yuan of energy consumption cost, does not even need additional energy, decreases corresponding tap water consumption, significantly reduces medical waste water processing cost, therefore have obvious economic and social benefit.
3, the utility model contrasts traditional reverse osmosis unit and water use efficiency has been brought up to about 85% ~ 95% from 75%, has significant water-saving result.
4, the utility model and the maximum difference of some other reverse osmosis concentrated apparatus for recovering are that the Land use systems of reuse water is different, the medical reverse osmose pure-water system of energy-saving and water-saving of the present utility model and water quality safety more focuses on the biological safety of medicinal water, recycle-water is not be directly used in medical pure water, but after first-stage reverse osmosis process, be just used for medical pure water again, stablizing of medical pure water physical and chemical index and microbiological indicator can be kept for a long time qualified.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the medical reverse osmose pure-water system of energy-saving and water-saving of the present utility model and water quality safety.
Embodiment
Below in conjunction with specific embodiment, the utility model is described in further detail.
The medical reverse osmose pure-water system of a kind of energy-saving and water-saving and water quality safety, first pre-treatment is carried out to former water, then pretreated water is sent into high-pressure pump adherence pressure, then enter first-stage reverse osmosis pure water device filtering and concentrating and obtain pure water and dense water, the pure water that reverse osmosis obtains is as medicinal water, the dense water that reverse osmosis obtains is then through overrich apparatus for recovering Treatment for Reuse, and the water outlet of dense apparatus for recovering mixes the water inlet as first-stage reverse osmosis pure water device with through pretreated former water.
Embodiment
As shown in Figure 1, the medical reverse osmose pure-water system of a kind of energy-saving and water-saving and water quality safety comprises first-stage reverse osmosis pure water device 1, the water-in 11 that first-stage reverse osmosis pure water device 1 comprises, pure water outlet 12 and dense water out 13, water-in 11 is connected with high-pressure pump 2 by pipeline 111, the water-in of high-pressure pump connects pretreatment unit (not shown) by pipeline 112, pipeline 111 is provided with flow control valve 113, dense water out 13 is connected to dense apparatus for recovering 3 by pipeline 114, pipeline 114 is connected with topping-up pump 4, pipeline 114 is also provided with flow control valve 115.
Dense apparatus for recovering 3 comprises housing and is arranged on the reverse osmosis membrane in housing, the housing of dense apparatus for recovering 3 is provided with dense water inlet 31, reuse water outlet 32 and wastewater outlet 33, wastewater outlet 33 is connected with discharge of wastewater pipeline 311, discharge of wastewater pipeline 311 is provided with flow control valve 312, reuse water outlet 32 is connected to pipeline 112 by pipeline 313.
After piping 112 mixes with the reuse water from pipeline 313, first-stage reverse osmosis pure water device 1 is injected through high-pressure pump through pretreated tap water, first-stage reverse osmosis pure water device 1 reverse osmosis isolation output pure water and dense water, pure water is medical pure water based on pure water outlet 12 is discharged, dense water injects dense apparatus for recovering 3 by pipeline 114 under the effect of topping-up pump 4, dense water obtains reuse water and waste water after overrich apparatus for recovering 3 is separated, reuse water flows to pipeline 112 through piping 313, and waste water discharges from pipeline 311.
For the first-stage reverse osmosis pure water device that the rate of recovery is 75%, in the water inlet of first-stage reverse osmosis pure water device, fresh tap water consumption is 85%, reuse water accounts for 15%, first-stage reverse osmosis pure water device output 75% high-quality pure water, the 25% dense water of discharging is reclaimed further by follow-up dense apparatus for recovering, dense apparatus for recovering reclaims the relatively poor pure water of 15% water quality, discharges 10% waste water.The result implemented is that the former water use efficiency of whole system has brought up to 88% from conventional 75%, reaches energy-saving and water-saving object.For preventing film fouling, Scale inhibitors can be added according to the dense water of practical situation to the former water of first-stage reverse osmosis import or discharge.Rate of recovery height can according to the valve regulation of practical situation Flow-rate adjustment.
Application examples
Assuming that the water inlet of first-stage reverse osmosis pure water device 10 tons, the rate of recovery of first-stage reverse osmosis pure water device water is 75%, therefore can obtain pure water 7.5 tons, 2.5 tons, dense water.Dense water directly enters dense apparatus for recovering, assuming that the rate of recovery of dense apparatus for recovering water is also 75%, therefore can obtains and reclaim pure water 1.88 tons, and waste water 0.62 ton.1.88 tons that are obtained by dense apparatus for recovering are reclaimed the pure water water quality inferiority of pure water water quality compared with first-stage reverse osmosis pure water device, thus be not suitable for direct use to be also not suitable for being mixed in first-stage reverse osmosis pure water tank, but its water-quality ratio is much better by the tap water after the process for the treatment of nature water device, by its with undertaken being mixed with the influent quality helping improve first-stage reverse osmosis by the former water after pretreatment unit, save the consumption of former water simultaneously.So the first-stage reverse osmosis pure water obtaining 7.5 tons only needs the dense apparatus for recovering reuse pure water of the former water of consumption 8.12 tons and 1.88 tons, now the rate of recovery of former water can bring up to 92.4%, higher than the water use efficiency of conventional reverse osmosis 75%, accomplish to save water and energy while guarantee water quality safety.
The foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (5)
1. the medical reverse osmose pure-water system of an energy-saving and water-saving and water quality safety, comprise with water-in, pure water outlet and the first-stage reverse osmosis pure water device of dense water out, described water-in is connected with high-pressure pump, it is characterized in that: described dense water out is connected with dense apparatus for recovering, described dense apparatus for recovering comprises housing and is arranged on the filtering membrane in housing, with reuse water outlet and wastewater outlet on described housing, wherein reuse water outlet is connected to the entrance of high-pressure pump by pipeline.
2. the medical reverse osmose pure-water system of energy-saving and water-saving as claimed in claim 1 and water quality safety, is characterized in that: described filtering membrane is ultra-low-pressure reverse osmosis film or nanofiltration membrane.
3. the medical reverse osmose pure-water system of energy-saving and water-saving as claimed in claim 1 and water quality safety, is characterized in that: described filtering membrane is reverse osmosis membrane, is also connected with topping-up pump between described first-stage reverse osmosis pure water device and dense apparatus for recovering.
4. the medical reverse osmose pure-water system of the energy-saving and water-saving as described in any one of claims 1 to 3 and water quality safety, is characterized in that: the entrance of described dense apparatus for recovering is also connected with online Scale inhibitors adding set and mixing device.
5. the medical reverse osmose pure-water system of energy-saving and water-saving as claimed in claim 1 and water quality safety, is characterized in that: described water-in, dense water out and wastewater outlet are equipped with flow control valve.
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| CN201420467464.9U CN204173955U (en) | 2014-08-19 | 2014-08-19 | The medical reverse osmose pure-water system of a kind of energy-saving and water-saving and water quality safety |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104163472A (en) * | 2014-08-19 | 2014-11-26 | 杭州永洁达净化科技有限公司 | Energy-saving water-saving safe-water-quality medical reverse-osmosis pure water system |
| CN109603289A (en) * | 2019-02-22 | 2019-04-12 | 高云芝 | A method of filtering stream cuts attachment |
| CN109603278A (en) * | 2019-02-22 | 2019-04-12 | 高云芝 | A kind of stream cuts filter plant |
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2014
- 2014-08-19 CN CN201420467464.9U patent/CN204173955U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104163472A (en) * | 2014-08-19 | 2014-11-26 | 杭州永洁达净化科技有限公司 | Energy-saving water-saving safe-water-quality medical reverse-osmosis pure water system |
| CN109603289A (en) * | 2019-02-22 | 2019-04-12 | 高云芝 | A method of filtering stream cuts attachment |
| CN109603278A (en) * | 2019-02-22 | 2019-04-12 | 高云芝 | A kind of stream cuts filter plant |
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