CN213475623U

CN213475623U - First-stage reverse osmosis water preparation device

Info

Publication number: CN213475623U
Application number: CN202021979732.7U
Authority: CN
Inventors: 陈彦生; 张剑平; 罗贤建; 肖科
Original assignee: Suzhou Geshen Pharmaceutical Equipment Engineering Technology Co ltd
Current assignee: Suzhou Geshen Pharmaceutical Equipment Engineering Technology Co ltd
Priority date: 2020-09-11
Filing date: 2020-09-11
Publication date: 2021-06-18
Anticipated expiration: 2030-09-11

Abstract

The utility model discloses an one-level reverse osmosis water preparation facilities, it include former water tank, with the low-pressure pump that former water tank is connected, with the filtering mechanism that the low-pressure pump is connected, with the heat exchanger that filtering mechanism connects, with the high-pressure pump that the heat exchanger is connected, with the one-level reverse osmosis unit that the high-pressure pump is connected and with the storage water tank that one-level reverse osmosis unit is connected, the low-pressure pump is connected with the converter, the high-pressure pump with be equipped with pressure sensor between the one-level reverse osmosis unit, pressure sensor with converter electric connection. The utility model discloses one-level reverse osmosis water preparation facilities has realized producing water, self-cleaning, pasteurization, chemical cleaning's integration, has improved the life of high-pressure pump, has reached the self-cleaning effect before the reverse osmosis work simultaneously, has also avoided because the scavenging pump of off-line work does not use for a long time and produces the high problem of microorganism load, and convenient operation has wide popularization and application prospect.

Description

First-stage reverse osmosis water preparation device

Technical Field

The utility model relates to a purification water preparation technical field especially relates to a one-level reverse osmosis water preparation facilities.

Background

The purified water, also called deionized water or deep desalted water, is water prepared by using drinking water as raw water through a distillation method, an ion exchange method, a reverse osmosis method or other suitable methods, and is mainly applied to the fields of medicines, biological agents and the like. The purified water is treated by a first-stage reverse osmosis device in the preparation process.

Chinese patent publication No. CN210559853U discloses a purified water preparation system, which comprises a tap water tank, a sand filtration booster pump, a multi-media filter, a medium-pressure ultraviolet dechlorination device, a cartridge filter, a primary reverse osmosis mechanism, a secondary reverse osmosis mechanism, a mixed bed water supply mechanism, and a workshop water supply tank, which are connected in sequence through connecting pipelines; the input of running water pond links to each other with plate heat exchanger, running water pipe network in proper order through the connecting tube, and first-level reverse osmosis mechanism is including looping through the one-level reverse osmosis high-pressure pump, one-level reverse osmosis unit, the one-level reverse osmosis water tank that connecting tube connects, and second grade reverse osmosis mechanism is including looping through second grade reverse osmosis high-pressure pump, the second grade reverse osmosis unit that connecting tube connects, and mixed bed water supply mechanism is including mixing a bed feed tank, mixing a bed feed pump, mixing a bed. The utility model discloses a well one-level reverse osmosis mechanism design is that independent high-pressure pump control one-level reverse osmosis is intake, and its shortcoming lies in that it needs the high-pressure pump to work at a lower frequency initially to start, and the high-pressure pump just can normally work after reverse osmosis membrane soaks, and long-time low frequency work can make the life of high-pressure pump reduce, and the high-pressure pump damages more easily. When the reverse osmosis membrane is pasteurized and chemically cleaned, the reverse osmosis membrane needs to be operated in a low-pressure working state, and the high-pressure pump can also be operated in a low-frequency state for a long time, so that the loss of the high-pressure pump is accelerated.

The existing one-stage reverse osmosis water preparation device usually adopts an independent off-line chemical cleaning pump (low-pressure pump) to perform pasteurization and chemical cleaning on a reverse osmosis membrane, so that the manual operation is more complicated, a power supply needs to be temporarily provided, and the cleaning pump (low-pressure pump) working off-line does not use microorganisms which can generate higher load for a long time, which is not beneficial to the clean design and automation of the system.

Therefore, it is necessary to provide a new first-stage reverse osmosis water preparation apparatus to solve the above problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an improve high-pressure pump life-span, more clean automatic one-level reverse osmosis water preparation facilities.

In order to achieve the above object, the utility model discloses a technical scheme be: the utility model provides a one-level reverse osmosis water preparation facilities, its include former water tank, with low-pressure pump that former water tank is connected, with filtering mechanism that the low-pressure pump is connected, with heat exchanger that filtering mechanism connects, with high-pressure pump that the heat exchanger is connected, with one-level reverse osmosis unit that the high-pressure pump is connected and with the storage water tank that one-level reverse osmosis unit is connected, the low-pressure pump is connected with the converter, the high-pressure pump with be equipped with pressure sensor between the one-level reverse osmosis unit, pressure sensor with converter electric connection.

The filtering mechanism comprises a multi-medium filter, an activated carbon filter and a security filter in sequence.

The filtering mechanism also comprises a water softener arranged between the activated carbon filter and the cartridge filter.

The multi-medium filter is a quartz sand filter.

The heat exchanger is a plate heat exchanger.

Compared with the prior art, the utility model discloses one-level reverse osmosis water preparation facilities's beneficial effect lies in: the low-pressure pump is arranged and connected with the frequency converter, and the frequency converter is electrically connected with the pressure sensor, so that the problems that the high-pressure pump works at low frequency for a long time and the service life of the high-pressure pump is shortened are solved; when the low-pressure pump works, the water production section of the reverse osmosis membrane also has certain water flow for self-cleaning, so that the self-cleaning effect before the reverse osmosis work is achieved; meanwhile, the low-pressure pump can be used as power for pasteurization and chemical cleaning to replace a cleaning pump working off line in the prior art, so that the problem of high microbial load caused by long-time nonuse of the cleaning pump working off line is avoided, and the problem of complex operation of the cleaning pump in off line working is also solved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained without inventive work, wherein:

FIG. 1 is a schematic diagram of a first stage reverse osmosis water production plant according to the present invention;

shown in the figure: 1-raw water tank, 2-low pressure pump, 3-filtering mechanism, 31-multi-medium filter, 32-active carbon filter, 33-water softener, 34-cartridge filter, 4-heat exchanger, 5-high pressure pump, 6-first-stage reverse osmosis unit, 7-frequency converter, 8-pressure sensor and 9-water storage tank.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely below, and it should be apparent that the described embodiments are only some embodiments of the present invention, but not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Please refer to fig. 1, the utility model relates to an one-level reverse osmosis water preparation facilities, including former water tank 1, low-pressure pump 2 connected with former water tank 1, filtering mechanism 3 connected with low-pressure pump 2, heat exchanger 4 connected with filtering mechanism 3, high-pressure pump 5 connected with heat exchanger 4, one-level reverse osmosis unit 6 connected with high-pressure pump 5 and storage water tank 9 connected with one-level reverse osmosis unit 6, low-pressure pump 2 is connected with converter 7, is equipped with pressure sensor 8 between high-pressure pump 5 and the one-level reverse osmosis unit 6,

pressure sensor

8 and 7 electric connection of converter.

The filtering mechanism 3 comprises a multi-medium filter 31, an activated carbon filter 32, a water softener 33 and a cartridge filter 34 in sequence, and impurities such as fine particles, suspended matters, colloids, algae and organic matters in water are effectively intercepted through the multi-medium filter 31; the quality of the effluent is improved and pollution is prevented through the active carbon filter 32, in particular free residual oxygen poisoning pollution of a reverse osmosis membrane is prevented; the water softener 33 is arranged to achieve the purpose of softening hard water, thereby avoiding the scaling phenomenon of carbonate in pipelines, containers and the like and ensuring the smooth production; fine particles in the water are prevented from damaging the reverse osmosis membrane by the cartridge filter 34.

The multi-media filter 31 is a quartz sand filter, which is beneficial to removing impurities in water, and has small filtration resistance, large specific surface area, strong acid and alkali resistance and good pollution resistance.

The heat exchanger 4 is a plate heat exchanger which has the characteristics of high heat exchange efficiency, small heat loss, long service life and the like.

Please refer to fig. 1, the working principle of the first-level reverse osmosis water preparing apparatus of the present invention is as follows: at first, low-pressure pump 2 starts, water in the raw water tank 1 is pumped into first-level reverse osmosis unit 6 through filter mechanism 3 and heat exchanger 4 in sequence, the water pressure is sensed through pressure sensor 8 in the process, signal transmission is carried out to frequency converter 7, frequency converter 7 regulates and controls low-pressure pump 2, and then the flow and the pressure of regulated water, the loss of water flow to filter mechanism 3 and heat exchanger 4 is reduced, water suitable for flow and stable pressure is provided for first-level reverse osmosis unit 6 simultaneously, after water is fully infiltrated with the reverse osmosis membrane in first-level reverse osmosis unit 6, high-pressure pump 5 is started, water is pumped into first-level reverse osmosis unit 6 for reverse osmosis, and first-level reverse osmosis water is obtained.

In the working process, when the low-pressure pump 2 works, water is acted by low pressure, and when the water enters the reverse osmosis membrane in the first-stage reverse osmosis unit 6, the water can generate osmosis, so that the water production section of the reverse osmosis membrane also has certain water flow for self-cleaning, and the self-cleaning effect before reverse osmosis work is achieved.

Meanwhile, when the primary reverse osmosis unit 6 performs pasteurization and chemical cleaning, the primary reverse osmosis unit 6 needs to be in a low-pressure working state, at the moment, the low-pressure pump 2 can be used as power for pasteurization and chemical cleaning to replace a cleaning pump working off line in the prior art, automatic control of pasteurization and chemical cleaning processes is realized, the low-pressure pump 2 participates in the work of the primary reverse osmosis water preparation device, the problem of high microbial load caused by long-time nonuse of the cleaning pump working off line is avoided, and the problem of complex operation during the off-line work of the cleaning pump is also solved.

The utility model discloses one-level reverse osmosis water preparation facilities has realized producing water, self-cleaning, pasteurization, chemical cleaning's integration, has improved the life of high-pressure pump, has reached the self-cleaning effect before the reverse osmosis work simultaneously, has also avoided because the scavenging pump of off-line work does not use for a long time and produces the high problem of microorganism load, and convenient operation has wide popularization and application prospect.

Of course, those skilled in the art should realize that the above-mentioned embodiments are only used for illustrating the present invention, and not for limiting the present invention, and that the changes and modifications to the above-mentioned embodiments are all within the scope of the appended claims as long as they are within the true spirit of the present invention.

Claims

1. The utility model provides a one-level reverse osmosis water preparation facilities which characterized in that: the system comprises a raw water tank, a low-pressure pump connected with the raw water tank, a filtering mechanism connected with the low-pressure pump, a heat exchanger connected with the filtering mechanism, a high-pressure pump connected with the heat exchanger, a first-stage reverse osmosis unit connected with the high-pressure pump and a water storage tank connected with the first-stage reverse osmosis unit, wherein the low-pressure pump is connected with a frequency converter, a pressure sensor is arranged between the high-pressure pump and the first-stage reverse osmosis unit, and the pressure sensor is electrically connected with the frequency converter.

2. The apparatus of claim 1, wherein: the filtering mechanism comprises a multi-medium filter, an activated carbon filter and a security filter in sequence.

3. The apparatus for preparing first-stage reverse osmosis water according to claim 2, wherein: the filtering mechanism also comprises a water softener arranged between the activated carbon filter and the cartridge filter.

4. The apparatus for preparing first-stage reverse osmosis water according to claim 2, wherein: the multi-medium filter is a quartz sand filter.

5. The apparatus of claim 1, wherein: the heat exchanger is a plate heat exchanger.