CN113998796A - Multipurpose water treatment equipment - Google Patents

Abstract

The invention discloses a multipurpose water treatment device, which comprises a plurality of filters and a switch valve, wherein the filters are connected in series, the filters comprise a pretreatment filter group and a reverse osmosis filter for preparing pure water, the pretreatment filter group comprises a security filter connected with the reverse osmosis filter, the switch valve is connected with the reverse osmosis filter in parallel, the inlet of the switch valve is connected with the outlet of the security filter, and the outlet of the switch valve forms a cooling water spray outlet. The multipurpose water treatment equipment provided by the invention has the advantages of producing pure water and simultaneously supplying cooling water for the equipment.

Description

Multipurpose water treatment equipment

Technical Field

The invention relates to the technical field of water treatment, in particular to multipurpose water treatment equipment.

Background

Coal mine underground mining activities require the use of a large amount of water, and have gradually-improved requirements on the quality of the used water. The high-water-base emulsion is a main medium of a hydraulic transmission system of the underground fully mechanized coal mining face, and the purity of water for liquid preparation plays a key role in stable operation of the hydraulic support.

The coal mine underground water treatment system in the related technology can not actively adapt to the water supply quality of different coal mine fully mechanized coal mining working faces, and the produced water quality of the coal mine underground water treatment system depends on the water quality condition of underground supplied raw water, so that the relative consistency of the produced water quality can not be ensured in different use places. Furthermore, the water treatment system in the related art has low water resource utilization rate, and only utilizes reverse osmosis produced water, but not multi-stage filtration produced water.

Disclosure of Invention

The present invention is directed to solving, at least to some extent, one of the technical problems in the related art.

To this end, embodiments of the present invention provide a multipurpose water treatment apparatus having advantages of producing pure water while also being capable of supplying cooling water for the apparatus.

A multipurpose water treatment apparatus according to an embodiment of the present invention includes a plurality of filters and an on-off valve, the plurality of filters being connected in series with each other, the plurality of filters including a pre-treatment filter group and a reverse osmosis filter for making pure water, the pre-treatment filter group including a cartridge filter for connection with the reverse osmosis filter; the switch valve is connected with the reverse osmosis filter in parallel, the inlet of the switch valve is connected with the outlet of the safety filter, and the outlet of the switch valve forms a cooling water jet port.

According to the multipurpose water treatment equipment provided by the embodiment of the invention, the safety filter and the switch valve connected with the reverse osmosis filter in parallel are arranged, so that the water filtered by the safety filter can be filtered by the reverse osmosis filter to obtain pure water, and can also be directly used as equipment cooling water to be sprayed out through a pipeline where the switch valve is arranged. Therefore, the multipurpose water treatment equipment provided by the embodiment of the invention can simultaneously supply the equipment cooling water and the pure water, and has strong applicability and high reliability.

In some embodiments, the switching valve is a seventh solenoid valve.

In some embodiments, the pre-treatment filter bank comprises a backwash filter adjacent to the water inlet, the multi-purpose water treatment apparatus further comprises an electronic control system, a first pressure sensor and a second pressure sensor, the first pressure sensor and the second pressure sensor are both electrically connected with the electronic control system, and the first pressure sensor and the second pressure sensor are respectively arranged on an inlet side and an outlet side of the backwash filter.

In some embodiments, the pre-treatment filter bank further comprises a media filter in communication with the backflush filter, the multipurpose water treatment apparatus further includes a first solenoid valve, a second solenoid valve, a third solenoid valve, a fourth solenoid valve, and a fifth solenoid valve, each of an outlet of the first solenoid valve and an inlet of the second solenoid valve is connected with an inlet of the media filter, each of an outlet of the third solenoid valve, an inlet of the fourth solenoid valve, and an inlet of the fifth solenoid valve is connected with an outlet of the media filter, the outlet of the fourth electromagnetic valve is connected with the inlet of the security filter, each of the inlet of the first electromagnetic valve and the inlet of the third electromagnetic valve is connected with the outlet of the backwashing filter, each of an outlet of the second solenoid valve and an outlet of the fifth solenoid valve is connected with a blowdown liquid tank or a mine water tank.

In some embodiments, the multipurpose water treatment equipment further comprises a sixth electromagnetic valve, an inlet of the sixth electromagnetic valve is connected with an outlet of the backwashing filter, and an outlet of the sixth electromagnetic valve forms a spray dust removal water jet outlet.

In some embodiments, the multipurpose water treatment apparatus further comprises an emergency filter and a manual shut-off valve, the emergency filter being in series with the manual shut-off valve, the emergency filter and the manual shut-off valve being in parallel with the media filter and the cartridge filter.

In some embodiments, the multipurpose water treatment apparatus further comprises an eighth solenoid valve and a pure water tank, the reverse osmosis filter has a concentrated water outlet and a pure water outlet, an inlet of the reverse osmosis filter is connected with an outlet of the safety filter, a concentrated water outlet of the reverse osmosis filter is connected with an inlet of the eighth solenoid valve, an outlet of the eighth solenoid valve forms a concentrated water drain, and a pure water outlet of the reverse osmosis filter is connected with the pure water tank.

In some embodiments, the multipurpose water treatment apparatus further comprises an electronic descaler disposed at an outlet side of the canister filter.

In some embodiments, the multipurpose water treatment device further comprises a third pressure sensor, a fourth pressure sensor, a fifth pressure sensor, a water inlet flow meter and a water outlet flow meter connected in series, wherein the third pressure sensor is arranged at the inlet side of the safety filter, the fourth pressure sensor and the water inlet flow meter are arranged at the inlet side of the reverse osmosis filter, the fifth pressure sensor and the water outlet flow meter are arranged at the pure water outlet side of the reverse osmosis filter, and each of the third pressure sensor, the fourth pressure sensor, the fifth pressure sensor, the water inlet flow meter and the water outlet flow meter is electrically connected with the electronic control system.

In some embodiments, the multipurpose water treatment apparatus further comprises an audible and visual alarm electrically connected to the electronic control system.

Drawings

FIG. 1 is a schematic diagram of a multipurpose water treatment apparatus according to an embodiment of the present invention.

Fig. 2 is a combination diagram of a membrane module of a reverse osmosis filter according to an embodiment of the present invention.

Reference numerals: 100. a multi-purpose water treatment facility; 1. a hydraulic source; 2. a two-position three-way electromagnetic valve; 31. a first solenoid valve; 32. a second solenoid valve; 33. a third electromagnetic valve; 34. a fourth solenoid valve; 35. a fifth solenoid valve; 36. a sixth electromagnetic valve; 37. a seventh electromagnetic valve; 38. an eighth solenoid valve; 4. a hydraulic motor; 5. a manual stop valve; 6. an emergency filter; 7. a pressure reducing valve; 8. a safety valve; 9. a liquid return tank; 10. a raw water tank; 111. a first pressure sensor; 112. a second pressure sensor; 113. a third pressure sensor; 114. a fourth pressure sensor; 115. a fifth pressure sensor; 12. backwashing the filter; 13. a media filter; 14. a cartridge filter; 15. a deflation valve; 16. an electronic scale remover; 17. a water inlet flow meter; 18. a reverse osmosis filter; 19. a water outlet flow meter; 20. a pure water tank; 21. a liquid level sensor; 22. a conductivity meter; 23. a booster pump; 24. an electronic control system; 25. a monitoring center; 26. an audible and visual alarm; 27. a water inlet.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.

As shown in fig. 1, a multipurpose water treatment apparatus 100 according to an embodiment of the present invention includes a plurality of filters and an on-off valve, the plurality of filters being connected in series with each other, the plurality of filters including a pre-treatment filter group including a cartridge filter 14 for connection with a reverse osmosis filter 18 and a reverse osmosis filter 18 for making pure water. The switch valve is connected in parallel with the reverse osmosis filter 18, the inlet of the switch valve is connected with the outlet of the cartridge filter 14, and the outlet of the switch valve constitutes a cooling water outlet.

According to the multi-purpose water treatment equipment 100 of the embodiment of the invention, by arranging the cartridge filter 14 and the switch valve connected with the reverse osmosis filter 18 in parallel, the water filtered by the cartridge filter 14 can be filtered by the reverse osmosis filter 18 to obtain pure water, and can also be directly used as equipment cooling water to be sprayed out through a pipeline where the switch valve is located. Therefore, the multipurpose water treatment equipment 100 can simultaneously supply the equipment cooling water and the pure water, and has strong applicability and high reliability.

In some embodiments, the pre-treatment filter bank includes a backflushing filter 12 adjacent to the water inlet 27, and a hydraulic motor 4 or a pneumatic motor. The raw water at the water inlet 27 firstly enters the backwashing filter 12 for preliminary filtration, mainly removing suspended matters, large particles, colloid and the like in the water, and reducing turbidity.

The hydraulic motor 4 or pneumatic motor is drivingly connected to the backwashing mechanism of the backwashing filter 12 for washing the backwashing filter 12. The hydraulic motor 4/pneumatic motor drives the back washing mechanism of the back washing filter 12 under the driving of the external hydraulic source 1/air source to realize the automatic rotary washing of the back washing filter 12, thereby ensuring the filtering effect of the back washing filter 12.

According to the multipurpose water treatment equipment 100 provided by the embodiment of the invention, the hydraulic motor 4 or the pneumatic motor is arranged to replace the motor to drive the backwashing mechanism to rotate so as to clean the backwashing filter 12, so that when the backwashing filter 12 is frequently cleaned for many times, the backwashing filter is not burnt out due to frequent start and stop as the motor is. Therefore, the cleaning safety of the backwashing filter 12 is ensured, and the filtering reliability of the backwashing filter 12 is higher.

In some embodiments, the multi-purpose water treatment apparatus 100 further includes an electronic control system 24, a first pressure sensor 111, and a second pressure sensor 112. The first pressure sensor 111 and the second pressure sensor 112 are both electrically connected to the electronic control system 24, and the first pressure sensor 111 and the second pressure sensor 112 are respectively disposed at the inlet side and the outlet side of the backflushing filter 12.

Specifically, taking the example that the backwashing filter 12 is driven by the hydraulic motor 4 as an example, the outlet of the hydraulic motor 4 is connected to the liquid return tank 9, a two-position three-way electromagnetic valve 2 is arranged between the hydraulic motor 4 and the hydraulic source 1, and the two-position three-way electromagnetic valve 2 is electrically connected with the electronic control system 24 and is in a normally closed state. When the backwashing filter 12 is blocked due to excessive impurities, the pressure at the inlet side of the backwashing filter 12 is gradually greater than the pressure at the outlet side, when the pressures detected by the first pressure sensor 111 and the second pressure sensor 112 or the pressure difference between the pressures reaches a threshold value, the electric control system 24 receives a signal and controls the two-position three-way electromagnetic valve 2 to be switched to an open state, and the hydraulic source 1 drives the hydraulic motor 4 to work, so that the backwashing filter 12 is cleaned at regular time, and the filtering reliability of the backwashing filter 12 is ensured.

Alternatively, the hydraulic motor 4 or the air pressure motor may be driven at a fixed time to clean the backwash filter 12 at a fixed time, and the filtration reliability of the backwash filter 12 can be ensured as well.

As shown in fig. 1, the multipurpose water treatment apparatus 100 according to the embodiment of the present invention further includes a pressure reducing valve 7. The pressure reducing valve 7 is installed on the inlet side of the backflushing filter 12, whereby the pressure reducing valve 7 can reduce the pressure value into the backflushing filter 12 to be within a set range.

The multipurpose water treatment equipment 100 further comprises a safety valve 8, wherein an inlet of the safety valve 8 is connected with an outlet of the pressure reducing valve 7, and an outlet of the safety valve 8 is connected with the raw water tank 10. When the water pressure in the pipe between the pressure reducing valve 7 and the backwashing filter 12 exceeds a limit value, the safety valve 8 is opened to discharge the water back to the raw water tank 10, so that the operational reliability of the multipurpose water treatment apparatus 100 according to the embodiment of the present invention can be secured.

In some embodiments, as shown in fig. 1, the pre-treatment filter set further comprises a media filter 13 connected to the back-flush filter 12, and the media filter 13 can remove various suspended matters, microorganisms and other fine particles in the water, so as to achieve the effects of reducing the turbidity of the water and purifying the water.

The multipurpose water treatment apparatus 100 further includes first, second, third, and fourth and fifth solenoid valves 31, 32, 33, 34, and 35. Each of the outlet of the first solenoid valve 31 and the inlet of the second solenoid valve 32 is connected to the inlet of the media filter 13, each of the outlet of the third solenoid valve 33, the inlet of the fourth solenoid valve 34, and the inlet of the fifth solenoid valve 35 is connected to the outlet of the media filter 13, each of the inlet of the first solenoid valve 31 and the inlet of the third solenoid valve 33 is connected to the outlet of the backflushing filter 12, and each of the outlet of the second solenoid valve 32 and the outlet of the fifth solenoid valve 35 is connected to the blowdown liquid tank or the mine water tank.

The first electromagnetic valve 31, the second electromagnetic valve 32, the third electromagnetic valve 33, the fourth electromagnetic valve 34 and the fifth electromagnetic valve 35 jointly realize the states of the forward washing function, the backwashing function, the normal filtering work and the like of the medium filter 13, and specifically, when the medium filter 13 is in the normal filtering work mode, the first electromagnetic valve 31 and the fourth electromagnetic valve 34 are opened, and the second electromagnetic valve 32, the third electromagnetic valve 33 and the fifth electromagnetic valve 35 are closed. When the medium filter 13 is in the backwashing operation mode, the second solenoid valve 32 and the third solenoid valve 33 are opened, and the first solenoid valve 31, the fourth solenoid valve 34, and the fifth solenoid valve 35 are closed. When the medium filter 13 is in the normal washing operation mode, the first solenoid valve 31 and the fifth solenoid valve 35 are opened, and the second solenoid valve 32, the third solenoid valve 33 and the fourth solenoid valve 34 are closed.

Thus, by performing the normal washing and the backwashing of the medium filter 13, the fine particles adhering to the medium filter 13 can be removed more thoroughly, and the filtration reliability of the medium filter 13 is higher.

In some embodiments, the multi-purpose water treatment apparatus 100 further comprises a sixth solenoid valve 36, an inlet of the sixth solenoid valve 36 is connected to an outlet of the backwash filter 12, and an outlet of the sixth solenoid valve 36 constitutes a spray water ejection port for dust removal.

The outlet of the sixth electromagnetic valve 36 is connected with the water interface for dust removal by spraying, and the sixth electromagnetic valve 36 is in a normally closed state so as to facilitate further filtration of raw water. The sixth electromagnetic valve 36 is electrically connected with the electronic control system 24, and the electronic control system 24 controls the sixth electromagnetic valve 36 to open according to actual requirements so as to perform the spray dust removal operation. Thus, the multipurpose water treatment apparatus 100 can supply water for spray dust removal without wasting the apparatus cooling water or pure water obtained after filtering a plurality of times, so that the reliability of water supply of the multipurpose water treatment apparatus 100 is higher.

In some embodiments, the on-off valve is a seventh solenoid valve 37, an inlet of the canister filter 14 is connected to an outlet of the fourth solenoid valve 34, an outlet of the canister filter 14 is connected to an inlet of the seventh solenoid valve 37, and an outlet of the seventh solenoid valve 37 constitutes a cooling water discharge port.

The cartridge filter 14 is used to remove fine particles of 5 μm or more to achieve further filtration of the effluent passing through the media filter 13, thereby obtaining a cooling water requirement for downhole equipment. The seventh solenoid valve 37 is in a normally closed state to facilitate further filtration of the raw water. The seventh electromagnetic valve 37 is electrically connected with the electronic control system 24, and the electronic control system 24 controls the seventh electromagnetic valve 37 to open and close according to actual requirements so as to cool the set equipment. Thereby further securing the reliability of the water supply of the multipurpose water treatment apparatus 100.

It should be noted that, the safety filter 14 is provided with the air release valve 15, and the air release valve 15 can solve the problem of too much air and air accumulation, so as to avoid the pump in the water treatment equipment from being burnt down due to idle running.

In some embodiments, the multipurpose water treatment apparatus 100 further includes an eighth solenoid valve 38 and a plain water tank 20. The reverse osmosis filter 18 has a concentrated water outlet and a pure water outlet, an inlet of the reverse osmosis filter 18 is connected to an outlet of the cartridge filter 14, a concentrated water outlet of the reverse osmosis filter 18 is connected to an inlet of the eighth solenoid valve 38, an outlet of the eighth solenoid valve 38 forms a concentrated water drain, and a pure water outlet of the reverse osmosis filter 18 is connected to the pure water tank 20.

The eighth electromagnetic valve 38 is connected to the electronic control system 24, and the electronic control system 24 controls the eighth electromagnetic valve 38 to open and close to discharge the concentrated water at regular time. The pure water obtained after filtration by the reverse osmosis filter 18 is directly discharged into the pure water tank 20 for storage. The pure water tank 20 has an outlet connected to a booster pump 23. The outlet of the booster pump 23 is communicated with the emulsion proportioning system to provide pure water for the emulsion proportioning system. Thus, by providing the pure water tank 20, the booster pump 23 can be ensured to operate more reliably, and suction can be prevented.

The coal mine underground water treatment equipment based on the reverse osmosis technology in the related technology has the defect of low raw water recovery rate, so that the utilization rate of underground water supply of a coal mine is reduced, and the reverse osmosis concentrated water discharged by the system is not convenient to be reused underground.

As shown in fig. 2, the reverse osmosis filter 18 includes a first-stage one-stage reverse osmosis membrane module and a first-stage two-stage reverse osmosis membrane module. Each of the first-stage reverse osmosis membrane module and the first-stage second-stage reverse osmosis membrane module comprises a plurality of reverse osmosis membrane shell structures connected in parallel. The number of the reverse osmosis membrane shell structures in the first-stage first-section reverse osmosis membrane module is larger than that of the reverse osmosis membrane shell structures in the first-stage second-section reverse osmosis membrane module. For example, taking the 10t/h water yield as an example, a two-core membrane-mounting shell is adopted, taking 5 groups of membrane shells as an example, the first three membrane shells (6 membranes in total) are taken as a group, the first-stage reverse osmosis membrane group device is taken as a first-stage second-stage reverse osmosis membrane group device, the second two membrane shells (4 membranes in total) are taken as a group, the second-stage first-stage reverse osmosis membrane group device is taken as a first-stage second-stage reverse osmosis membrane group device, a concentrated water outlet of the first-stage reverse osmosis membrane group device is communicated with a water inlet of the first-stage second-stage reverse osmosis membrane group device, a water outlet of the first-stage second-stage reverse osmosis membrane group device is communicated with a pure water outlet, and a concentrated water outlet of the first-stage second-stage reverse osmosis membrane group device is communicated with a concentrated water outlet.

The outlet of the water inlet flow meter 17 is connected with the water inlet hole of the first-stage reverse osmosis membrane module. The concentrated water outlet of the first-stage reverse osmosis membrane module device is connected with the water inlet of the first-stage second-stage reverse osmosis membrane module device. Each of the water outlet of the first-stage second-stage reverse osmosis membrane module and the water outlet of the first-stage reverse osmosis membrane module is connected with the pure water outlet of the reverse osmosis filter 18. The concentrated water outlet of the first-stage two-stage reverse osmosis membrane group device is connected with the concentrated water outlet of the reverse osmosis filter 18.

Therefore, the reverse osmosis filter 18 in the multipurpose water treatment device 100 according to the embodiment of the invention is configured by the series-parallel combination of the plurality of reverse osmosis membrane shell structures, even if the plurality of reverse osmosis membrane shell structures are connected in parallel and then connected in series, so that the recovery rate of the reverse osmosis filter 18 can be improved, more pure water can be prepared, the filtration efficiency of inorganic salts can be obviously improved, the recovery rate of water can be obviously improved, and the reverse osmosis concentrated water discharged by the system can be reduced.

The pure water tank 20 is provided with a liquid level sensor 21 and a conductivity meter 22 electrically connected to an electronic control system 24. The liquid level sensor 21 is used to monitor the pure water liquid level in the pure water tank 20 in real time. The conductivity meter 22 is used for monitoring the quality of pure water in the pure water tank 20 in real time, and can also determine whether the filtering effect of the multipurpose water treatment apparatus 100 is stable or not based on the detection result of the water quality. The top end of the pure water tank 20 is also provided with a limit unloading port, thereby ensuring that the back pressure does not exceed a rated value. In addition, when the liquid level sensor 21 is out of order, the water treatment equipment can continuously produce water, and the limiting unloading port is arranged to discharge gas so as to avoid the burst of the pure water tank 20 due to overlarge pressure.

In some embodiments, multipurpose water treatment apparatus 100 further includes an electronic descaler 16 disposed on the outlet side of the cartridge filter 14. The electronic scale remover 16 can replace the original scale inhibitor. Not only environmental protection and operation convenience are guaranteed, but also unattended operation can be realized.

In some embodiments, emergency filter 6 and manual shut-off valve 5 are in parallel with media filter 13 and cartridge filter 14.

Thereby avoiding the problem that the normal production of the multipurpose water treatment equipment 100 is influenced by the damage of the medium filter 13 or the security filter 14 in the production process and ensuring the continuity of pure water production.

In some embodiments, the multi-purpose water treatment apparatus 100 further includes a third pressure sensor 113, a fourth pressure sensor 114, a fifth pressure sensor 115, the inlet flow meter 17, and the outlet flow meter 19 in series with each other. A third pressure sensor 113 is provided on the inlet side of the cartridge filter 14, a fourth pressure sensor 114 and a water inlet flow meter 17 are provided on the inlet side of the reverse osmosis filter 18, a fifth pressure sensor 115 and a water outlet flow meter 19 are provided on the pure water outlet side of the reverse osmosis filter 18, and each of the third pressure sensor 113, the fourth pressure sensor 114, the fifth pressure sensor 115, the water inlet flow meter 17 and the water outlet flow meter 19 is electrically connected to the electronic control system 24.

The pressure of the inlet and outlet sides of the security filter 14 and the pressure of the inlet and outlet sides of the reverse osmosis filter 18 are monitored by arranging the third pressure sensor 113, the fourth pressure sensor 114 and the fifth pressure sensor 115, so that the filtering effects of the security filter 14 and the reverse osmosis filter 18 can be accurately judged in real time, early warning can be further realized, and the production reliability of the multipurpose water treatment equipment 100 is ensured.

With the improvement of the water quality requirement of coal underground mining activities, Reverse Osmosis (RO) technology is widely applied to a coal mine underground water treatment system as a core process. However, due to the difference between the quality of raw water of mines in different coal mines and the pretreatment process, the quality of water supplied to the fully mechanized coal mining face is different, and the reverse osmosis water treatment device in the related technology cannot actively adapt to the quality of water supplied to the fully mechanized coal mining face in different coal mines, and cannot ensure the relative consistency of the quality of produced water in different use places. In addition, the difference of the quality of raw water can cause different cleaning periods and service lives of reverse osmosis membrane elements, so that the maintenance cleaning and replacement periods of the reverse osmosis membrane are lack of uniformity.

In view of this, the multipurpose water treatment apparatus 100 according to the embodiment of the present invention is provided with the water inlet flow meter 17 and the water outlet flow meter 19 so as to be able to determine the pollution condition of the water quality according to the change of the values of the water inlet flow meter 17 and the water outlet flow meter 19, and then control the media filter 13 to perform the automatic forward backwashing, automatic sewage discharge and automatic filtering operations according to the pollution condition of the water quality.

That is, the multipurpose water treatment apparatus 100 according to the embodiment of the invention can adjust the pretreatment process according to the pollution condition of the water quality so as to make the quality of the pretreated produced water entering the reverse osmosis filter 18 as consistent as possible, so that the multipurpose water treatment apparatus 100 according to the embodiment of the invention can actively adapt to the quality of the supplied water of different coal mine fully mechanized coal mining working faces, and further the multipurpose water treatment apparatus 100 according to the embodiment of the invention can ensure the relative consistency of the quality of the produced water at different use sites.

In some embodiments, the multi-purpose water treatment apparatus 100 further includes an audible and visual alarm 26, and the audible and visual alarm 26 is electrically connected to the electronic control system 24. The electronic control system 24 is also electrically connected with the monitoring center 25, and the electronic control system 24 can be connected with the monitoring center 25 through a communication form such as 485 or modbus.

The electronic control system 24 can drive the audible and visual alarm 26 to give an early warning after receiving data abnormality information of any one of the first electromagnetic valve 31, the second electromagnetic valve 32, the third electromagnetic valve 33, the fourth electromagnetic valve 34, the fifth electromagnetic valve 35, the water inlet flow meter 17, the water outlet flow meter 19, the first pressure sensor 111, the second pressure sensor 112, the third pressure sensor 113, the fourth pressure sensor 114, the fifth pressure sensor 115, the liquid level sensor 21 and the conductivity meter 22, so that a problem can be quickly reminded, and meanwhile, the work of the multipurpose water treatment device 100 can be conveniently monitored through the monitoring center 25.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the present disclosure, the terms "one embodiment," "some embodiments," "an example," "a specific example," or "some examples" and the like mean that a specific feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present disclosure. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.

Claims (10)

1. A multipurpose water treatment apparatus, comprising:

a plurality of filters and an on-off valve, the plurality of filters being connected in series with each other, the plurality of filters including a pre-treatment filter group and a reverse osmosis filter for making pure water, the pre-treatment filter group including a cartridge filter for connection with the reverse osmosis filter; the switch valve is connected with the reverse osmosis filter in parallel, the inlet of the switch valve is connected with the outlet of the safety filter, and the outlet of the switch valve forms a cooling water jet port.

2. The multipurpose water treatment apparatus according to claim 1, wherein the switching valve is a seventh solenoid valve.

3. The multipurpose water treatment apparatus of claim 1, wherein the pre-treatment filter bank includes a backwash filter adjacent the water inlet, the multipurpose water treatment apparatus further comprising an electronic control system, a first pressure sensor and a second pressure sensor, the first pressure sensor and the second pressure sensor both being electrically connected to the electronic control system, the first pressure sensor and the second pressure sensor being disposed on an inlet side and an outlet side of the backwash filter, respectively.

4. The multipurpose water treatment apparatus of claim 3, wherein the pre-treatment filter bank further includes a media filter connected to the backwash filter, the multipurpose water treatment apparatus further includes a first solenoid valve, a second solenoid valve, a third solenoid valve, a fourth solenoid valve, and a fifth solenoid valve, each of an outlet of the first solenoid valve and an inlet of the second solenoid valve is connected with an inlet of the media filter, each of an outlet of the third solenoid valve, an inlet of the fourth solenoid valve, and an inlet of the fifth solenoid valve is connected with an outlet of the media filter, the outlet of the fourth electromagnetic valve is connected with the inlet of the security filter, each of the inlet of the first electromagnetic valve and the inlet of the third electromagnetic valve is connected with the outlet of the backwashing filter, each of an outlet of the second solenoid valve and an outlet of the fifth solenoid valve is connected with a blowdown liquid tank or a mine water tank.

5. The multipurpose water treatment apparatus according to claim 3, further comprising a sixth solenoid valve, an inlet of which is connected to an outlet of the backwash filter, and an outlet of which constitutes a spray dust removal water ejection port.

6. The multipurpose water treatment apparatus of claim 4 further comprising an emergency filter and a manual shut-off valve, the emergency filter being in series with the manual shut-off valve, the emergency filter and the manual shut-off valve being in parallel with the media filter and the cartridge filter.

7. The multipurpose water treatment apparatus according to claim 1, further comprising an eighth solenoid valve and a plain water tank, wherein the reverse osmosis filter has a concentrated water outlet and a plain water outlet, an inlet of the reverse osmosis filter is connected to an outlet of the cartridge filter, a concentrated water outlet of the reverse osmosis filter is connected to an inlet of the eighth solenoid valve, an outlet of the eighth solenoid valve constitutes a concentrated water drain, and a plain water outlet of the reverse osmosis filter is connected to the plain water tank.

8. The multipurpose water treatment apparatus of claim 1 further comprising an electronic descaler provided at an outlet side of the cartridge filter.

9. The multipurpose water treatment apparatus according to claim 1, further comprising a third pressure sensor, a fourth pressure sensor, a fifth pressure sensor, a water inlet flow meter and a water outlet flow meter connected in series with each other, wherein the third pressure sensor is provided at an inlet side of the cartridge filter, the fourth pressure sensor and the water inlet flow meter are provided at an inlet side of the reverse osmosis filter, the fifth pressure sensor and the water outlet flow meter are provided at a pure water outlet side of the reverse osmosis filter, and each of the third pressure sensor, the fourth pressure sensor, the fifth pressure sensor, the water inlet flow meter and the water outlet flow meter is electrically connected to the electronic control system.

10. The multipurpose water treatment apparatus of claim 3 further comprising an audible and visual alarm electrically connected to the electronic control system.

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