CN219546827U

CN219546827U - Demineralized water device with switchable standby filter element

Info

Publication number: CN219546827U
Application number: CN202223262346.8U
Authority: CN
Inventors: 江敏; 张慧琳
Original assignee: Grenzem New Water Co ltd
Current assignee: Grenzem New Water Co ltd
Priority date: 2022-12-06
Filing date: 2022-12-06
Publication date: 2023-08-18
Anticipated expiration: 2032-12-06

Abstract

The utility model relates to the technical field of demineralized water equipment, and discloses a demineralized water device with a switchable standby filter element. Comprises a mounting frame; the installation frame is internally provided with water feed pumps, the water feed pumps are arranged in two, the water feed pumps are symmetrically arranged in the installation frame, one side of each water feed pump is provided with a quartz sand filter, one side of each quartz sand filter, which is far away from the water feed pump, is provided with an activated carbon filter, one end of the inside of the installation frame is provided with a high-pressure pump, a security filter is arranged between the high-pressure pump and the activated carbon filter, and reverse osmosis equipment is arranged at the top end of the high-pressure pump. Through concentrating on an installation frame with all equipment, form and integrate sled dress structure, not only make equipment area little, transportation, installation, maintenance are convenient moreover, all set up reserve through the master equipment, realize remote control through automatic control valve and DCS operating system, compare conventional processing, realize highly automatization to can realize the uninterrupted operation of system.

Description

Demineralized water device with switchable standby filter element

Technical Field

The utility model relates to the technical field of demineralized water equipment, in particular to a demineralized water device with a switchable standby filter element.

Background

In recent years, desalination systems have been widely used in various water treatment industries due to their wide applicability to water treatment and good quality of produced water. The desalted water is the finished water obtained by removing suspended matters, colloid, inorganic cations, anions and other impurities in water by various water treatment processes. In the process of preparing desalted water, equipment is required to be shut down in the processes of equipment fault maintenance, system backwashing, maintenance and the like because of the limitation of system configuration and insufficient automation degree, so that the effluent cannot meet the requirements of users. Accordingly, there is a need for a desalinated water device that is highly automated and provides for redundancy.

Disclosure of Invention

(one) solving the technical problems

Aiming at the defects of the prior art, the utility model provides a demineralized water device with a switchable standby filter element.

(II) technical scheme

In order to achieve the above purpose, the present utility model provides the following technical solutions: a demineralized water device capable of switching a standby filter element comprises an installation rack;

the inside of the installation frame is provided with two water feed pumps, the two water feed pumps are symmetrically arranged in the installation frame, one side of the water feed pump is provided with a quartz sand filter, one side of the quartz sand filter, which is far away from the water feed pump, is provided with an activated carbon filter, one end of the inside of the installation frame is provided with a high-pressure pump, a security filter is arranged between the high-pressure pump and the activated carbon filter, the top end of the high-pressure pump is provided with reverse osmosis equipment, the quartz sand filter and the activated carbon filter are provided with automatic control valves at water inlet ends, water inlet valves are arranged at water inlet ends of the water feeding pump, the quartz sand filter, the activated carbon filter, the cartridge filter, the high-pressure pump and the reverse osmosis equipment, the water inlet valves are electromagnetic valves, one side of the installation rack, which is far away from the high-pressure pump, is provided with an on-site control cabinet, a PLC (programmable logic controller) control cabinet is arranged between the on-site control cabinet and the water feeding pump, and an instrument box is arranged at the top end of the water feeding pump.

Preferably, the water feed pump, the quartz sand filter, the activated carbon filter, the cartridge filter, the high-pressure pump and the reverse osmosis equipment are all connected with each other through pipelines.

Preferably, the water feed pump, the quartz sand filter, the activated carbon filter, the cartridge filter, the high-pressure pump and the reverse osmosis device are all provided with two.

Preferably, one side of the installation frame, which is close to the high-pressure pump, is provided with a water inlet, a water outlet and a concentrated water discharge port, the water inlet is connected with the water feeding pump through a pipeline, the water outlet is connected with the reverse osmosis equipment through a pipeline, and the concentrated water discharge port is connected with the high-pressure pump through a pipeline.

(III) beneficial effects

Compared with the prior art, the utility model provides a demineralized water device with a switchable standby filter core, which has the following beneficial effects:

1. this demineralized water device of reserve filter core of changeable forms integrated sled dress structure through concentrating on an installation frame with all equipment, not only makes equipment area little, and transportation, installation, maintenance are convenient moreover.

2. This demineralized water device of reserve filter core of changeable all sets up reserve through with the master unit, realizes remote control through automatic control valve and DCS operating system, compares conventional processing, realizes high automation to can realize the uninterrupted operation of system.

Drawings

The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the embodiments of the utility model, serve to explain the utility model. In the drawings:

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic front view of the present utility model;

FIG. 3 is a schematic side view of the present utility model;

fig. 4 is a schematic top view of the present utility model.

In the figure: 1. a frame is installed; 2. a water feed pump; 3. a quartz sand filter; 4. an activated carbon filter; 5. a cartridge filter; 6. a high pressure pump; 7. a reverse osmosis device; 8. a PLC control cabinet; 9. an in-situ control cabinet; 10. an instrument box; 11. a water inlet; 12. a water outlet; 13. a concentrated water discharge port.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.

A demineralized water device capable of switching a standby filter element comprises an installation rack 1; the water supply pump 2 is arranged in the installation frame 1, two water supply pumps 2 are symmetrically arranged in the installation frame 1, a quartz sand filter 3 is arranged on one side of the water supply pump 2, an activated carbon filter 4 is arranged on one side, far away from the water supply pump 2, of the quartz sand filter 3, a high-pressure pump 6 is arranged at one end in the installation frame 1, a security filter 5 is arranged between the high-pressure pump 6 and the activated carbon filter 4, and reverse osmosis equipment 7 is arranged at the top end of the high-pressure pump 6; the water feed pump 2, the quartz sand filter 3, the activated carbon filter 4, the cartridge filter 5, the high-pressure pump 6 and the reverse osmosis equipment 7 are all connected with each other through pipelines; the water feed pump 2, the quartz sand filter 3, the activated carbon filter 4, the cartridge filter 5, the high-pressure pump 6 and the reverse osmosis equipment 7 are respectively provided with two components; the water inlet ends of the quartz sand filter 3 and the activated carbon filter 4 are provided with automatic control valves, and the water inlet ends of the water feed pump 2, the quartz sand filter 3, the activated carbon filter 4, the security filter 5, the high-pressure pump 6 and the reverse osmosis equipment 7 are provided with water inlet valves, wherein the water inlet valves are electromagnetic valves; an on-site control cabinet 9 is arranged on one side of the mounting rack 1 far away from the high-pressure pump 6, a PLC control cabinet 8 is arranged between the on-site control cabinet 9 and the water supply pump 2, a DCS control system is arranged in the PLC control cabinet 8, and an instrument box 10 is arranged at the top end of the water supply pump 2; the installation frame 1 is equipped with water inlet 11, delivery port 12 and dense water discharge port 13 near the one side of high-pressure pump 6, connects through the pipeline between water inlet 11 and the feed pump 2, and delivery port 12 is connected through between pipeline and the reverse osmosis equipment 7, and dense water discharge port 13 is connected through between pipeline and the high-pressure pump 6.

The working principle of the demineralized water device with the switchable standby filter element is specifically described below.

When the intelligent control system is used, as shown in fig. 1-4, the DCS control needs to be automatically commissioned by the touch screen, the upper computer is commissioned, the DSC end needs to send out a remote start instruction, an operation allowing instruction of the DCMS is received, the DSC commission automatic operation defaults to select corresponding A-series equipment to be commissioned to be in a commission state, and A, B-series equipment are reserved for each other. The automatic start starts in the following order and the stop stops in the following order. All faults need to be reset manually and then can be converted into a standby state. The desalting water pry can monitor alarm information, and all resets can be reset on the touch screen after the fault is confirmed manually. The DCS system can monitor signals, instrument signals, start signals, stop signals and fault signals in the operation of the system.

The system automatically operates: the touch screen on-site button is needed to be commissioned, and the system start button is pressed to complete the system start. In the single system, A, B series of devices are reserved for each other. When the stop button is pressed, the system automatically stops running.

The first step: the valve is actuated. The method comprises the steps of starting a system water inlet valve A, starting a water inlet valve A of a quartz sand filter 3, starting an automatic control valve A of the quartz sand filter 3, starting an automatic control valve A of an activated carbon filter 4, starting a water inlet valve A of a security filter 5, starting a reverse osmosis water inlet valve A and starting a reverse osmosis concentrate valve A.

And a second step of: after the water feed pump 2A is started and the operation is normal, the next step is performed, and the high-pressure pump 6 is started. The start-up flushing is completed by setting the starting time of the water feed pump 2 through a touch screen (1. When the pressure difference between the water feed pump 2A and the Y-shaped filter is too large, the water feed pump 2B is started in a chained mode, the water feed pump 2A stops running, the filter screen is cleaned manually to complete, the water feed pump 2A is reserved after confirming the faults, 2. When the water inlet temperature is too high or too low, the system is stopped in a chained mode, damage to a reverse osmosis membrane is avoided, the proper running temperature is 10-40 ℃, 3, when the outlet pressure of the water feed pump 2A is low, the pressure is selected one, the pollution blocking of the Y-shaped filter is eliminated, the self faults of the pump are described, the water feed pump 2B is started in a chained mode, the water feed pump 2A stops running, the water feed pump 2A needs to be checked manually, and the water feed pump 2A is reserved after confirming the faults and maintaining normally.

The backwashing period of the quartz sand filter 3 is determined according to the content of suspended matters in water, the running time and the backwashing time are set through an automatic control valve A of the quartz sand filter 3, the running time is finished, the system is stopped, a water supply pump 2A is started, the quartz sand filter 3A is backwashed, and after backwashing is finished, the system is started for supplying water.

The back washing period of the activated carbon filter 4 is determined according to the chlorine content in water, when the activated carbon filter 4 is close to saturation in adsorption of chlorine, the adsorption capacity is recovered through back washing, the running time and the back washing time are set through an automatic control valve A of the activated carbon filter 4, the time setting is required to avoid the back washing with the quartz sand filter 3A at the same time, after the back washing is finished, water is supplied when the system is started, and the back washing time can be set after the back washing of the quartz sand filter 3 is finished.

When the turbidity is detected to be high, the capability of the quartz sand filter 3A is reduced, an interlocking system is used for switching the standby quartz sand filter 3B and the active carbon filter 4B, an electromagnetic valve B of the standby quartz sand filter 3 and an automatic control valve B of the quartz sand filter 3 are started, when the system electromagnetic valve is not closed and enters a backwashing state, a standby water supply pump 2 is started (the backwashing is avoided, the water supply is insufficient and the system is stopped), when the automatic control valve of the quartz sand filter 3 is used for switching the backwashing, after the backwashing is finished, the water inlet electromagnetic valve of the backwashing series quartz sand filter 3 is closed, the standby water supply pump 2 is stopped, and the backwashing is finished and is changed into standby.

The pressure difference of the cartridge filter 5 is high, the water inlet electromagnetic valve of the standby cartridge filter 5 is started in a interlocking way, when the pressure difference is higher than a set value, the electromagnetic valve A of the cartridge filter 5 is closed, the emptying valve of the cartridge filter 5 is opened manually, and the filter element is replaced. ORP on-line analysis is arranged on the outlet header pipe of the cartridge filter 5, and when the oxidation-reduction potential reaches above the set potential, the interlocking system is stopped, so that the oxidation of the membrane caused by the entry of oxidizing substances into the membrane is avoided.

And a third step of: when the water inlet pressure of the high-pressure pump 6A is higher than the set value of the pressure switch, the high-pressure pump 6 is started to operate so as to supply water into the membrane, and the recovery rate of reverse osmosis is controlled to reach a preset value by adjusting the opening of the ball valve at the concentrated water end. In the starting process, the inlet pressure of the high-pressure pump 6 is lower than the set value of the pressure switch, the high-pressure pump 6 is not allowed to be started, and a stopping step is carried out; when the water inlet pressure of the high-pressure pump 6 is lower than the set value of the pressure switch in the operation process, the interlocking system is stopped, and the stopping step is entered. The outlet of the high-pressure pump 6 is provided with a pressure switch and a pressure transmitter, when the outlet pressure is higher than a set value, the system is stopped, and whether the membrane is blocked or the opening degree of the concentrate valve is too small is checked artificially. The design of the pressure transmitter is alternatively selected, when the pressure is higher than a set value, the system is stopped in an interlocking way, a stopping step is carried out, the high-pressure pump 6, the water supply pump 2A and the valve are sequentially stopped, and whether the membrane is blocked or the opening degree of the ball valve at the concentrated water end is too small is checked artificially; when the pressure is lower than the set value, the high-pressure pump 6 is started in an interlocking way, and the high-pressure pump 6 is stopped, so that the maintenance is performed after the reason is checked, and the maintenance is performed.

Fourth step: running in water production; when the water production electric conduction is unqualified, the interlocking is started to use the series of water production unqualified electromagnetic valves A, and the produced water is discharged on site. When the water production electric conduction is lower than the interlocking value, the interlocking closes the water production disqualified electromagnetic valve A, and when the water production electric conduction is disqualified for a long time, whether the reason film needs to be replaced or not is checked. The water producing main pipe is provided with a water producing pressure transmitter, the water producing pressure transmitter is alternatively arranged, the phenomenon that the membrane is damaged by the pressed water is avoided, the water producing pressure is higher than a protection set value, and the system is stopped in an interlocking way.

Fifth step: normal shut down or interlocking shut down, high pressure pump 6A shut down, water pump 2A shut down (shut down flushing is performed by setting up the time for flushing the membrane of the water pump 2), system water inlet valve a, water inlet valve a of quartz sand filter 3, automatic control valve a of activated carbon filter 4 filter, water inlet valve a of cartridge filter 5, reverse osmosis water inlet valve a, reverse osmosis concentrate valve a.

Claims

1. The utility model provides a demineralized water device of reserve filter core of changeable, includes installation frame (1), its characterized in that: the utility model discloses a water supply system, including installation frame (1), water supply pump (2) symmetry sets up inside installation frame (1), water supply pump (2) one side is equipped with quartz sand filter (3), one side that water supply pump (2) was kept away from to quartz sand filter (3) is equipped with active carbon filter (4), the inside one end of installation frame (1) is equipped with high-pressure pump (6), be equipped with cartridge filter (5) between high-pressure pump (6) and active carbon filter (4), high-pressure pump (6) top is equipped with reverse osmosis unit (7), water supply pump (3) and active carbon filter (4) water inlet end is equipped with the automatic control valve, water supply pump (2), quartz sand filter (3), active carbon filter (4), cartridge filter (5), high-pressure pump (6) and reverse osmosis unit (7) water inlet end are equipped with the solenoid valve, one side that high-pressure pump (6) was kept away from to install frame (1) is equipped with local control cabinet (9), be equipped with between local control cabinet (9) and water supply pump (2) top (10).

2. A switchable redundant cartridge desalination apparatus as defined in claim 1 wherein: the water feed pump (2), the quartz sand filter (3), the activated carbon filter (4), the security filter (5), the high-pressure pump (6) and the reverse osmosis equipment (7) are all connected with each other through pipelines.

3. A switchable redundant cartridge desalination apparatus as defined in claim 1 wherein: the water feed pump (2), the quartz sand filter (3), the activated carbon filter (4), the security filter (5), the high-pressure pump (6) and the reverse osmosis equipment (7) are all provided with two.

4. A switchable redundant cartridge desalination apparatus as defined in claim 1 wherein: one side of the installation rack (1) close to the high-pressure pump (6) is provided with a water inlet (11), a water outlet (12) and a concentrated water discharge port (13), the water inlet (11) is connected with the water feeding pump (2) through a pipeline, the water outlet (12) is connected with the reverse osmosis equipment (7) through a pipeline, and the concentrated water discharge port (13) is connected with the high-pressure pump (6) through a pipeline.