CN214422434U - Hospital's central dual water supply system - Google Patents
Hospital's central dual water supply system Download PDFInfo
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- CN214422434U CN214422434U CN202023329140.3U CN202023329140U CN214422434U CN 214422434 U CN214422434 U CN 214422434U CN 202023329140 U CN202023329140 U CN 202023329140U CN 214422434 U CN214422434 U CN 214422434U
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Abstract
The utility model discloses a hospital central quality-divided water supply system, which comprises a central quality-divided main machine water production system and a water using terminal, wherein the central quality-divided main machine water production system at least comprises a primary water production system, a secondary water production system and a tertiary water production system; the primary water production system comprises a raw water tank, a filtering device and a primary pure water tank; the secondary water production system comprises a secondary reverse osmosis device and a secondary pure water tank; the three-level water production system comprises an EDI system and a three-level pure water tank; the water using terminals are at least divided into a primary water using terminal, a secondary water using terminal and a tertiary water using terminal; wherein, the first grade pure water case is connected with first grade water terminal and second grade reverse osmosis unit respectively, second grade pure water case is connected with second grade water terminal and EDI system respectively, tertiary pure water case is connected with tertiary water terminal. The utility model discloses a central authorities divide matter water supply system water utilization efficiency is high, and the energy consumption is low, and the change frequency of consumptive material is lower, and it is still less to change quantity, effectively saves space.
Description
Technical Field
The utility model relates to a hospital water supply technical field especially relates to a hospital central authorities divide matter water supply system.
Background
Hospitals serve as public service institutions with large energy consumption and pollutant discharge amount, water conservation, energy conservation and emission reduction are realized, and the implementation of green development becomes a consensus of all hospital builders and participants.
The water systems of direct drinking water, acidic oxidation potential water, hemodialysis water, domestic sewage treatment, industrial wastewater treatment, rainwater recycling, hot water and the like in the existing hospital are respectively designed, produced and delivered independently by different professional companies, so that the water systems in the hospital cannot be integrated, and the waste of manpower and material resources can be caused in various links such as relevant communication, design and supplier selection of the water systems, the propulsion of the whole water supply system is influenced, and the construction and management cost of the water supply system is increased.
Disclosure of Invention
The utility model aims to solve the technical problem that a central dual water supply system of hospital is provided, water utilization efficiency is high, and is with low costs.
In order to solve the problems, the utility model provides a hospital central quality-divided water supply system, which comprises a central quality-divided main machine water production system and a water using terminal, wherein the central quality-divided main machine water production system at least comprises a primary water production system, a secondary water production system and a tertiary water production system; the primary water production system comprises a raw water tank, a filtering device and a primary pure water tank, wherein the filtering device comprises a quartz sand filter, a residual chlorine removal device, a security filter, a softener and a primary reverse osmosis device which are sequentially connected; the secondary water production system comprises a secondary reverse osmosis device and a secondary pure water tank; the three-level water production system comprises an EDI system and a three-level pure water tank;
the water using terminals are at least divided into a primary water using terminal, a secondary water using terminal and a tertiary water using terminal; wherein, the first grade pure water case is connected with first grade water terminal and second grade reverse osmosis unit respectively, second grade pure water case is connected with second grade water terminal and EDI system respectively, tertiary pure water case is connected with tertiary water terminal.
As an improvement of the scheme, the residual chlorine removal device comprises an overflowing ultraviolet lamp and an activated carbon filter, wherein the overflowing ultraviolet lamp is arranged in a pipeline between the quartz sand filter and the activated carbon filter.
As an improvement of the scheme, the overflowing ultraviolet lamp is provided with two wavelength ranges, wherein one wavelength range is 170-200 nm and is used for oxidizing residual chlorine; the other wavelength range is 240-280 nm, and the antibacterial agent is used for killing bacteria.
As an improvement of the scheme, an activated carbon filter material is filled in the activated carbon filter, the particle size of the activated carbon filter material is 8-16 meshes, and the uniformity coefficient is 1.4-2.0.
As an improvement of the scheme, the particle size of the quartz sand filler is 12-16 meshes.
As an improvement of the scheme, the central quality-grading main machine water production system further comprises a primary concentrated water recovery system, a primary reverse osmosis membrane cleaning system and a pH adjusting system; concentrated water generated by the first-stage reverse osmosis device enters a first-stage concentrated water recovery system through a pipeline, and concentrated water generated by the second-stage reverse osmosis device enters a raw water tank through a pipeline; the primary reverse osmosis membrane cleaning system is used for flushing the primary reverse osmosis device; and the pH adjusting system is arranged in front of the secondary reverse osmosis device and is used for adjusting the pH of the pure water entering the secondary reverse osmosis device.
As an improvement of the scheme, the effluent of the cartridge filter is introduced into a first-stage reverse osmosis device through a first-stage high-pressure pump; the water in the primary pure water tank is introduced into the secondary reverse osmosis device through the secondary high-pressure pump; and water in the secondary pure water tank is introduced into the EDI system through a tertiary high-pressure pump.
As an improvement of the scheme, immersion type ultraviolet sterilizers are arranged in the first-stage pure water tank, the second-stage pure water tank and the third-stage pure water tank.
As an improvement of the scheme, the wavelength of the immersed ultraviolet sterilizer is 240-280 nm, and the illumination intensity is highThe degree is 150-250 MJ/cm2。
As an improvement of the scheme, a first-stage circulating pump is arranged on the pipeline between the first-stage pure water tank and the first-stage water using terminal and used for refluxing pure water in the pipeline between the first-stage pure water tank and the first-stage water using terminal to the first-stage pure water tank;
the pipeline between the second-stage pure water tank and the second-stage water terminal is provided with a second-stage circulating pump which returns the pure water in the pipeline between the second-stage pure water tank and the second-stage water terminal to the second-stage pure water tank;
and the three-level circulating pump is used for refluxing the pure water in the pipeline between the three-level pure water tank and the three-level water terminal to the three-level pure water tank.
Implement the utility model discloses, following beneficial effect has:
the utility model discloses a central authorities divide matter water supply system to carry out the concentrated advanced treatment to the running water through central authorities divide matter host computer water system, the quality of water of the pure water at different levels of hierarchical preparation reaches each administrative or technical offices can directly use the standard, and the water terminal that supplies with each administrative or technical offices with the pipe network respectively again uses, compares with single administrative or technical offices water supply system, the utility model discloses a central authorities divide matter water supply system water utilization efficiency height, the energy consumption is low, and the change frequency of consumptive material is lower, and change quantity still less, effectively saves space, each filter equipment and the pure water case of central authorities divide matter host computer water system leave in same equipment room, and the pure water case at different levels and the water terminal at different levels realize through the pipeline that the water supply is connected.
Furthermore, the system of the utility model adopts the method of central water production and three-level quality-based water supply, and effectively meets the water demand of different departments of the hospital.
Further, the utility model discloses an equipment conveying line part adopts the design of circulation backward flow pipe network, and water supply pipe goes out from the pure water case, and the pure water case is got back to the water supply pipe network again, and the secondary pollution problem of bacterium regeneration, microorganism is stopped in the disinfection of regularly circulating.
Drawings
Figure 1 is a schematic diagram of the hospital central dual water supply system of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings.
Referring to fig. 1, the utility model provides a central quality-divided water supply system of hospital, including central quality-divided host computer water preparation system 1 and water terminal 2.
Specifically, the central quality-based main water production system 1 at least comprises a primary water production system 11, a secondary water production system 12 and a tertiary water production system 13; the primary water production system 11 comprises a raw water tank 111, a filtering device 112 and a primary pure water tank 113; the secondary water production system 12 comprises a secondary reverse osmosis device 121 and a secondary pure water tank 122; the three-stage water production system 13 comprises an EDI system 131 and a three-stage pure water tank 132.
Preferably, two sets of filtering devices 112 are provided, and the two sets of filtering devices 112 are connected in parallel; a user can start one or two sets of filtering devices 112 according to the water quality condition; or when the filter element needs to be replaced, the set of filtering devices 112 can be suspended, and the other set of filtering devices 112 can be switched to be used, so as to ensure the continuous water supply.
The filtering device 112 includes a quartz sand filter 1121, a residual chlorine removing device 1122, a cartridge filter 1123, a softener 1125 and a primary reverse osmosis device 1125, which are connected in sequence.
The quartz sand filter 1121 is internally provided with a plurality of layers of quartz sand fillers, and the particle size of the quartz sand fillers is gradually increased from top to bottom. Preferably, the particle size of the quartz sand filler is 12-16 meshes.
When water flows through the upper layer of quartz sand filler, part of solid suspended substances in the water enter the tiny eyelets formed by the upper layer of quartz sand filler and are intercepted by the surface layer of the filter material under the actions of adsorption and mechanical retention. Meanwhile, the intercepted suspended matters are overlapped and bridged, and the suspended matters in the water are continuously filtered as if a film is formed on the surface of the filter layer, so that the film filtration of the surface layer of the filter material is realized. This filtration is not only present on the surface of the filter layer, but also when water enters the intermediate filter layer, it is also referred to as osmotic filtration. In addition, because the filter materials are closely arranged, when suspended particles in water flow through the bent pore passages in the filter material layer, more opportunities and time are provided for the suspended particles to collide and contact with the surface of the filter materials, and fine particle impurities in the water are intercepted, so that the water is further clarified and purified.
After the quartz sand filter 1121 is used for a period of time, a pressure difference is generated between the upper layer quartz sand filler and the lower layer quartz sand filler, and when the pressure difference generated between the upper layer quartz sand filler and the lower layer quartz sand filler is larger than 0.05-0.1 Mpa, the quartz sand filler needs to be back-flushed by reverse water flow, so that trapped substances in the quartz sand filler are stripped and taken away by the water flow, and the filtering function is recovered.
Preferably, the quartz sand filter 1121 is controlled by an electric valve, the backwashing period is set to 24 hours, the time of each backwashing is 5-10 min, and the work position is set as follows: operation, backwashing and forward washing, the conversion of work positions is automatically recorded by a time controller and the flow direction of inlet and outlet water is controlled, and a water pump is started to carry out large-water-volume washing, thereby realizing automatic control. The quartz sand filler filled in the quartz sand filter 1121 is worn and reduced after being used for a long time, so that the quartz sand filler is replaced or added once in 2-3 years.
Chlorine is the most widely used disinfectant at present, is used as an effective sterilization and disinfection means, is low in price, good in effect and convenient to operate, and is used by more than 80% of water plants in the world at present. Therefore, a certain amount of residual chlorine must be maintained in municipal tap water to ensure the microbiological indicator of the drinking water is safe. When chlorine reacts with organic acids, many carcinogenic by-products are produced, such as chloroform and the like. Chlorine has good effect of killing bacterial cells, and also has serious influence on other organism cells and human body cells. More than a certain amount of chlorine can cause a lot of harm to human body and has an unpleasant odor, commonly called bleaching powder odor.
Reverse osmosis membrane in one-level reverse osmosis unit and the second grade reverse osmosis unit is destroyed by chlorine the most easily, the utility model discloses set up chlorine residue remove device 1122 before one-level reverse osmosis unit 1125 and reduce the content of the chlorine residue in the aquatic, can prolong the life of one-level reverse osmosis unit 1125, prolong reverse osmosis membrane's change speed to reduce the maintenance cost in later stage.
Surplus chlorine remove device 1122 is including locating surplus chlorine sensor, overflowing formula ultraviolet lamp and active carbon filter, wherein, surplus chlorine sensor sets up behind former water tank and sets up before one-level reverse osmosis membrane for detect the content of the surplus chlorine in aquatic, the utility model discloses can acquire the surplus chlorine content of the water around the processing of surplus chlorine remove device 1122 through setting up behind former water tank and setting up the surplus chlorine sensor before one-level reverse osmosis membrane, thereby calculate the surplus chlorine removal efficiency of surplus chlorine remove device 1122.
The active carbon filter material is equipped with in the active carbon filter, the particle diameter of active carbon filter material is 8 ~ 16 meshes, and the uniformity coefficient is 1.4 ~ 2.0, the utility model discloses utilize the adsorption characteristic of active carbon to adsorb organic pollutant, microorganism and dissolved oxygen etc. in aquatic on the surface of active carbon, increase the probability of microbial degradation organic pollutant, prolong the dwell time of organic matter, strengthen the biodegradation effect, get rid of active carbon surface adsorption's organic matter, still can get rid of the peculiar smell in aquatic, colourity, heavy metal removal, synthetic detergent and dechlorination etc. in addition, the selection adsorptivity of active carbon not only can adsorb the electrolyte ion, still can make potassium permanganate oxygen Consumption (COD) obtain fine control and reduction.
The utility model discloses be equipped with activated carbon filter before reverse osmosis unit, not only can detach the chlorine residue in the aquatic, can detach the organic pollution of aquatic, further protect reverse osmosis membrane.
Wherein, the active carbon adsorbs residual chlorine, and the adsorption performance is mainly determined by adsorption capacity and adsorption rate. The utility model discloses set up the overflow formula ultraviolet lamp before activated carbon filter and reduce the content of aquatic chlorine residue, can prolong activated carbon filter's life, the change speed of extension filter core to reduce the maintenance cost in later stage.
Specifically, the overflowing type ultraviolet lamp is arranged between the quartz sand filter 1121 and the activated carbon filter, and the overflowing type ultraviolet lamp is provided with two wavelength ranges, wherein one wavelength range is 170-200 nm and is used for oxidizing residual chlorine; the other wavelength range is 240-280 nm, and the antibacterial agent is used for killing bacteria.
The overflowing type ultraviolet lamp is arranged in the water pipe, and ultraviolet rays emitted by the overflowing type ultraviolet lamp are used for oxidizing residual chlorine in water, so that the content of the residual chlorine in the water entering the activated carbon filter is 0.05-0.1 mg/L, and the damage of the residual chlorine to the activated carbon filter and the primary reverse osmosis device 1125 can be reduced.
The utility model discloses a control the illumination intensity of STREAMING ultraviolet lamp and be 70 ~ 90MJ/cm2So that the residual chlorine content of the water entering the activated carbon filter is 0.05-0.1 mg/L; wherein, if the illumination intensity of the over-flow ultraviolet lamp is less than 70MJ/cm2Residual chlorine in the water cannot be effectively oxidized, namely, the content of the residual chlorine in the water entering the activated carbon filter is more than 0.1mg/L, so that the loss of the activated carbon filler and the reverse osmosis membrane is caused, and the filtering effect and the service life of the filtering device are influenced; if the illumination intensity of the over-flow type ultraviolet lamp is more than 90MJ/cm2And the residual chlorine in the water is excessively oxidized, namely the residual chlorine content of the water entering the activated carbon filter is less than 0.05mg/L, so that the residual chlorine content in the water is too low to maintain the effective sterilization effect.
The cartridge filter 1123 is used for filtering out particles with a particle size larger than 5 μm in water to prevent the reverse osmosis high-pressure pump from delivering the particles to the first-stage reverse osmosis device 1125, so as to prevent the reverse osmosis membrane from being punctured, blocked or damaged, and ensure the water passing amount and the effluent quality of the reverse osmosis device.
To increase the recovery of the primary reverse osmosis unit 1125 and prevent carbonate, sulfate and other forms of chemical scaling from occurring on the concentrate side of the primary reverse osmosis unit 1125 (especially the last membrane element in the reverse osmosis pressure vessel), thereby affecting the performance of the membrane elements, the feed water before reverse osmosis treatment must be softened.
The softener 1124 uses a strong acid cation resin to displace calcium and magnesium ions in raw water, and the water flowing out through the apparatus is softened water with extremely low hardness. After adsorbing certain amount of calcium and magnesium ions, the resin must be regenerated, saturated saline water is used to soak the resin to replace the hardness of calcium and magnesium ions in the resin, the softening exchange capacity of the resin is recovered, and the waste liquid is discharged.
The first-stage reverse osmosis device 1125 is composed of reverse osmosis membranes, the pore diameter of the reverse osmosis membranes is less than 1nm, and H is performed under a certain pressure2The O molecule can pass through the reverse osmosis membrane, but inorganic salts, heavy metal ions, organic substances, colloids, bacteria, viruses, and the like in the raw water cannot permeate the reverse osmosis membrane, thereby strictly distinguishing the permeable pure water from the impermeable concentrated water (concentrated water).
One-level reverse osmosis device 1125 is the utility model discloses filter 112's core processing part, for reaching the effluent standard, the utility model discloses according to one-level reverse osmosis device 1125's desalination ability, carry out the preliminary treatment to water in advance, the water after the preliminary treatment thoroughly gets rid of the TOC of difficult getting rid of in the pure water manufacturing process in the past through one-level reverse osmosis device 1125's high desalination performance, SiO2And micro-particles, bacteria and the like, and the water after reverse osmosis treatment can remove more than 99% of soluble solids, more than 99% of organic matters and colloids and almost 100% of bacterial viruses.
Wherein, whether the first-level reverse osmosis device 1125 is designed reasonably or not is directly related to the economic benefit of the operation of the central dual water supply system of the hospital, the service life, the operation reliability and the simplicity.
The utility model discloses a reverse osmosis membrane adopts the aromatic group of American pottery formula DOW TM company production cool limb complex film, and the desalination rate of single reverse osmosis membrane is more than 99.0%, the utility model discloses reverse osmosis unit is last to be equipped with the conductivity meter, the conductivity meter is used for the tracking monitoring raw water quality of water, goes out water quality of water.
The second-stage reverse osmosis device 121 has the same structure as the first-stage reverse osmosis device 1125, and is used for further removing inorganic salts, heavy metal ions, organic matters, colloids, bacteria, viruses and the like in water.
The EDI system 131 is removed by exchanging the residual salts in the reverse osmosis membrane pure water with hydrogen ions or hydroxide ions and sending them to the concentrate stream. Wherein the anion exchange resin uses hydroxyl ions (OH) under the action of DC electric field-) To exchange anions in the dissolved saltsOptionally (e.g. chloride Cl ion)-) (ii) a Hydrogen ion (H) for cation exchange resin+) To exchange cations (e.g. Na) in dissolved salts+) (ii) a Under the action of an electric potential, ions exchanged onto the resin migrate along the surface of the resin particles and pass through the membrane into the concentrate chamber, the negatively charged ions (e.g., Cl) being attracted by the anode-，OH-) Passes through the anion selective membrane into the adjacent concentrate stream and is blocked by the cation selective membrane, thereby remaining in the concentrate stream, and the cathode attracts cations (such as Na) in the concentrate stream+，H+) The water enters the adjacent concentrated water flow through the cation selective membrane and is blocked by the anion selective membrane, so that the water is remained in the concentrated water flow; as the water flows through the two parallel chambers, ions are removed in the pure water chamber and accumulate in the adjacent concentrate stream, which is then carried away from the membrane block by the concentrate stream.
In the EDI system 131, in the local area with high potential difference, the water decomposed by electrochemical reaction generates a large amount of H+And OH-The resin and the film can be continuously regenerated without adding chemicals, and the water utilization rate is more than or equal to 90 percent.
Specifically, the water terminals 2 are divided into at least a first-stage water terminal 21, a second-stage water terminal 22 and a third-stage water terminal 23 according to the water quality requirement, wherein the first-stage water terminal 21 is connected to the first-stage pure water tank 113, the second-stage water terminal 22 is connected to the second-stage pure water tank 122, and the third-stage water terminal 23 is connected to the third-stage pure water tank 132.
Specifically, according to CJ 94-2005 drinking purified water quality standard, WS 310.1-2016 hospital disinfection supply center part 1 management standard, YY 0572 + 2015 hemodialysis and related treatment water, GB 5749 + 2006 sanitary standard for drinking water, wherein the pH value of the effluent of the primary water terminal 21 is 5.0-8.5, TDS is less than or equal to 50mg/L, and the conductivity is less than or equal to 15 mu s/cm; according to WS 310.2-2016 technical specification for cleaning, disinfecting and sterilizing at part 2 of hospital disinfection supply center and WS 507-2016 technical specification for cleaning and disinfecting of soft endoscope, wherein the pH value of the effluent of the secondary water terminal 22 is 5.0-8.5, and the conductivity is less than or equal to 5 mu s/cm; according to GB/T6682-.
The central quality-grading main machine water production system 1 further comprises a primary concentrated water recovery system 14, a primary reverse osmosis membrane cleaning system 15 and a pH adjusting system 16.
The primary concentrated water recovery system 14 comprises a waste water tank, a sterilizer and a water pump; the outlet water of the cartridge filter 1123 is introduced into a first-stage reverse osmosis device 1125 through a first-stage high-pressure pump 1125, the concentrated water generated by the first-stage reverse osmosis device 1125 is introduced into a waste water tank, the concentrated water in the waste water tank is sterilized by a sterilizer, and then the concentrated water is supplied to water terminals such as hand washing, toilet flushing and the like where the requirement on the water quality is not high through a water pump, so that the utilization efficiency of the water can be improved, and the waste is reduced.
Wherein, the sterilizer is an ultraviolet sterilizer, an ozone sterilizer or a medicine-adding sterilizer, and the utility model is not limited in particular.
The primary reverse osmosis membrane cleaning system 15 comprises a cleaning water tank, a cleaning water pump and a security filter; the cleaning water tank is internally provided with cleaning water for cleaning the reverse osmosis membrane, the cleaning water is filtered by the cartridge filter, and then the cleaning water is introduced into the first-stage reverse osmosis device 1125 through the cleaning water pump to flush the reverse osmosis membrane, so that the filtering effect of the first-stage reverse osmosis device 1125 is improved, and the service life of the first-stage reverse osmosis device 1125 is prolonged.
The pH adjusting system 16 is disposed in front of the secondary reverse osmosis device 121 and is used for adjusting the pH value of the pure water entering the secondary reverse osmosis device 121. Wherein, the water in the first-stage pure water tank 113 is introduced into the second-stage reverse osmosis device 121 through the second-stage high pressure pump 123, and the concentrated water generated by the second-stage reverse osmosis device 121 is returned to the raw water tank 111 through a pipeline for circular filtration. Even if the water treated by the primary water preparation system 11 is concentrated water generated by the secondary reverse osmosis device 121, the water quality is superior to that of tap water, so that the water can be recycled to the original water tank 111 for circular water supply treatment, the water can be recycled, and the generation of sewage can be reduced.
Wherein, the water in the second-stage pure water tank 122 is introduced into the EDI system 131 through the third-stage high-pressure pump 133.
Pure water impurities entering the first-stage pure water tank 113 through the filter 112The quality content is very small, but in order to avoid the pollution of bacteria, an immersed ultraviolet sterilizer is arranged in the primary pure water tank 113 to ensure the safety of the water quality in the primary pure water tank 113. Preferably, the wavelength of the immersed ultraviolet sterilizer is 240-280 nm, and the illumination intensity is 150-250 MJ/cm2。
The pure water entering the second pure water tank 122 through the filtering device 112 and the second reverse osmosis device 121 has a small impurity content, but in order to avoid bacterial contamination, an immersion type ultraviolet sterilizer is provided in the second pure water tank 122 to ensure the safety of the water quality in the second pure water tank 122. Preferably, the wavelength of the immersed ultraviolet sterilizer is 240-280 nm, and the illumination intensity is 150-250 MJ/cm2。
The pure water entering the third pure water tank 132 through the filtering apparatus 112, the second reverse osmosis apparatus 121 and the EDI system 131 has a low impurity content, but in order to avoid bacterial contamination, an immersion type ultraviolet sterilizer is provided in the third pure water tank 132 to ensure the safety of the water quality in the third pure water tank. Preferably, the wavelength of the immersed ultraviolet sterilizer is 240-280 nm, and the illumination intensity is 150-250 MJ/cm2。
Wherein, the first-level pure water tank 113 and the first-level water terminal 21 are provided with a first-level circulating pump 24 on the pipeline, the first-level circulating pump 24 returns the pure water in the pipeline between the first-level pure water tank 113 and the first-level water terminal 21 to the first-level pure water tank 113, thereby avoiding the pure water from being stored in the pipeline for a long time and avoiding the secondary pollution problems of bacteria regeneration and microorganism.
Wherein, the second-stage pure water tank 122 and the pipeline of the second-stage water terminal 22 are provided with the second-stage circulating pump 25, the second-stage circulating pump 25 returns the pure water in the pipeline between the second-stage pure water tank 122 and the second-stage water terminal 22 to the second-stage pure water tank 122, thereby avoiding the pure water from being stored in the pipeline for a long time and avoiding the secondary pollution problems of bacteria regeneration and microorganism.
Wherein, the pipeline of the three-level pure water tank 132 and the three-level water terminal 23 is provided with a three-level circulating pump 25, the three-level circulating pump 25 reflows the pure water in the pipeline between the three-level pure water tank 132 and the three-level water terminal 23 to the three-level pure water tank 132, thereby avoiding the pure water from being stored in the pipeline for a long time and avoiding the secondary pollution problems of bacteria regeneration and microorganism.
The utility model discloses a central authorities divide matter water supply system to carry out the concentrated advanced treatment to the running water through central authorities divide matter host computer water system, the quality of water of the pure water at different levels of hierarchical preparation reaches each administrative or technical offices can directly use the standard, and the water terminal that supplies with each administrative or technical offices with the pipe network respectively again uses, compares with single administrative or technical offices water supply system, the utility model discloses a central authorities divide matter water supply system water utilization efficiency height, the energy consumption is low, and the change frequency of consumptive material is lower, and change quantity still less, effectively saves space, each filter equipment and the pure water case of central authorities divide matter host computer water system leave in same equipment room, and the pure water case at different levels and the water terminal at different levels realize through the pipeline that the water supply is connected.
Furthermore, the system of the utility model adopts the method of central water production and three-level quality-based water supply, and effectively meets the water demand of different departments of the hospital.
Further, the utility model discloses an equipment conveying line part adopts the design of circulation backward flow pipe network, and water supply pipe goes out from the pure water case, and the pure water case is got back to the water supply pipe network again, and the secondary pollution problem of bacterium regeneration, microorganism is stopped in the disinfection of regularly circulating.
The above disclosure is only a preferred embodiment of the present invention, and certainly should not be taken as limiting the scope of the invention, which is defined by the claims and their equivalents.
Claims (10)
1. A hospital central quality-based water supply system is characterized by comprising a central quality-based main machine water production system and a water using terminal, wherein the central quality-based main machine water production system at least comprises a primary water production system, a secondary water production system and a tertiary water production system; the primary water production system comprises a raw water tank, a filtering device and a primary pure water tank, wherein the filtering device comprises a quartz sand filter, a residual chlorine removal device, a security filter, a softener and a primary reverse osmosis device which are sequentially connected; the secondary water production system comprises a secondary reverse osmosis device and a secondary pure water tank; the three-level water production system comprises an EDI system and a three-level pure water tank;
the water using terminals are at least divided into a primary water using terminal, a secondary water using terminal and a tertiary water using terminal; wherein, the first grade pure water case is connected with first grade water terminal and second grade reverse osmosis unit respectively, second grade pure water case is connected with second grade water terminal and EDI system respectively, tertiary pure water case is connected with tertiary water terminal.
2. The hospital central dual water supply system of claim 1, wherein said residual chlorine removal device comprises an over-flow ultraviolet lamp and an activated carbon filter, wherein said over-flow ultraviolet lamp is disposed in a conduit between a quartz sand filter and an activated carbon filter.
3. The hospital central dual water supply system according to claim 2, wherein said over-flow ultraviolet lamp has two wavelength ranges, one of which is 170-200 nm, for oxidizing residual chlorine; the other wavelength range is 240-280 nm, and the antibacterial agent is used for killing bacteria.
4. The hospital central dual water supply system according to claim 2, wherein the activated carbon filter is filled with an activated carbon filter material, the particle size of the activated carbon filter material is 8-16 meshes, and the uniformity coefficient is 1.4-2.0.
5. The hospital central dual water supply system according to claim 1, wherein said quartz sand filter is filled with a plurality of layers of quartz sand packing, the particle size of said quartz sand packing gradually increases from top to bottom; the particle size of the quartz sand filler is 12-16 meshes.
6. The hospital central water supply system according to claim 1, wherein the central water system further comprises a primary concentrated water recovery system, a primary reverse osmosis membrane cleaning system and a pH adjustment system; concentrated water generated by the first-stage reverse osmosis device enters a first-stage concentrated water recovery system through a pipeline, and concentrated water generated by the second-stage reverse osmosis device enters a raw water tank through a pipeline; the primary reverse osmosis membrane cleaning system is used for flushing the primary reverse osmosis device; and the pH adjusting system is arranged in front of the secondary reverse osmosis device and is used for adjusting the pH of the pure water entering the secondary reverse osmosis device.
7. The hospital central dual water supply system of claim 1, wherein the outlet water of the cartridge filter is passed by a primary high pressure pump to a primary reverse osmosis unit; the water in the primary pure water tank is introduced into the secondary reverse osmosis device through the secondary high-pressure pump; and water in the secondary pure water tank is introduced into the EDI system through a tertiary high-pressure pump.
8. The hospital central dual water supply system according to claim 1, wherein the primary pure water tank, the secondary pure water tank and the tertiary pure water tank are provided with an immersion type ultraviolet sterilizer.
9. The hospital central dual water supply system according to claim 8, wherein the wavelength of the immersed ultraviolet sterilizer is 240 to 280nm, and the illumination intensity is 150 to 250MJ/cm2。
10. The hospital central dual water supply system according to claim 1, wherein the first pure water tank and the first water terminal are provided with a first circulation pump on the pipeline, and the first circulation pump returns pure water in the pipeline between the first pure water tank and the first water terminal to the first pure water tank;
the pipeline between the second-stage pure water tank and the second-stage water terminal is provided with a second-stage circulating pump which returns the pure water in the pipeline between the second-stage pure water tank and the second-stage water terminal to the second-stage pure water tank;
and the three-level circulating pump is used for refluxing the pure water in the pipeline between the three-level pure water tank and the three-level water terminal to the three-level pure water tank.
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| CN114180741A (en) * | 2021-12-14 | 2022-03-15 | 重庆市江津区中心医院 | Integrated water treatment system of hospital disinfection supply center |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114180741A (en) * | 2021-12-14 | 2022-03-15 | 重庆市江津区中心医院 | Integrated water treatment system of hospital disinfection supply center |
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