RO reverse osmosis water treatment equipment

Abstract

The application relates to the technical field of water multistage treatment, in particular to a RO (reverse osmosis) water treatment equipment which comprises an equipment shell, a first filter shell, a booster pump and a second filter shell, the first filter shell and the second filter shell both comprise upper filter shells and lower filter shells, the upper filter shells and the lower filter shells are detachably connected through connecting assemblies, the connecting assemblies comprise fixing bases, clamping blocks and elastic tongue pieces, the fixing bases are arranged at the lower ends of the upper filter shells, the fixing bases comprise vertical parts and horizontal parts, an open containing space is formed between the horizontal parts and the lower edges of the upper filter shells, the clamping blocks are arranged at the outer sides of the lower filter shells, the elastic tongue pieces comprise horizontal fixing parts and arc-shaped limiting parts, one end of the horizontal fixing parts is fixedly connected with the horizontal parts of the fixing bases, and the arc-shaped limiting parts form an upward protrusion at the entrances of the open containing spaces. The application can provide convenient conditions for filter core replacement operation, can automatically clean the filter cores and prolong the service life of the filter cores.

Description

Technical Field

[0001] The present invention relates to the technical field of multi-stage water treatment, in particular to RO reverse osmosis water treatment equipment. Background Art

[0002] With the continuous acceleration of production and life, water shortage and water pollution are becoming increasingly serious. The safety of both industrial water and drinking water has received more and more attention. In order to improve the quality of daily production and living water, enterprises or residential users usually install water treatment equipment at the drainage outlet of municipal pipeline network to purify the water. The treated water is then put into production or life use.

[0003] Common water treatment equipment operates by passing the water to be purified through multiple purification filters connected in series, achieving multi-stage treatment. Commonly used filter elements include PP cotton, activated carbon, and RO membrane reverse osmosis filters. PP cotton filters serve as the first-stage filtration unit, filtering out sediment and rust, so they require the most frequent replacement (several months). Activated carbon filters are typically used as the second-stage filtration unit, primarily to absorb metal ions in the water, with a service life of 6-12 months. RO membrane reverse osmosis filters are located at the end of the filtration process, so their service life is slightly longer.

[0004] In order to extend the service life of the filter element, the outer shell of the filter element needs to be removed before the filter element inside can be replaced. The outer shell is generally fixed to the equipment body by bolts, which makes it difficult to disassemble. At the same time, it is generally not self-cleaning, or only relies on backwashing for cleaning. The cleaning effect is average and mainly relies on manual cleaning, which affects the convenience of use. Summary of the Invention

[0005] In order to solve the above technical problems, the present invention provides an RO reverse osmosis water treatment equipment, which facilitates the filter element replacement operation and can automatically clean the filter element to extend the service life of the filter element.

[0006] In order to achieve the above object, the present application provides the following technical scheme: the RO reverse osmosis water treatment equipment, including equipment shell and first filter shell, booster pump and second filter shell which are sequentially arranged in the equipment shell from left to right, the first filter shell and the second filter shell both include sealed connection upper filter shell and lower filter shell, filter core is arranged in the first filter shell and the second filter shell, the water suction pipe of the booster pump is connected with the water outlet arranged on the first filter shell, the water outlet pipe of the booster pump is connected with the water inlet on the second filter shell;The upper filter shell and the lower filter shell are detachably connected through a plurality of connecting assemblies, the connecting assembly includes a fixed seat, a clamping block and an elastic tongue, the fixed seat is arranged at the lower end of the upper filter shell, the fixed seat includes an integral vertical part and a horizontal part, and a open type containing space is formed between the horizontal part and the lower edge of the upper filter shell, the clamping block is arranged on the outer side of the lower filter shell, the elastic tongue includes a horizontal fixed part and an arc limiting part, one end of the horizontal fixed part is fixedly connected with the horizontal part of the fixed seat, and the arc limiting part forms an upward protrusion at the entrance of the open type containing space;After the lower filter shell is assembled with the upper filter shell, the clamping block is located in the open type containing space, and the arc limiting part is located outside the clamping block and limits the clamping block.

[0007] Further, the upper surface edge of the fixed seat horizontal part is provided with a avoiding groove, the tail end of the arc limiting part of the elastic tongue is inclined downward and lower than the horizontal fixed part, and the avoiding groove is located below the tail end of the arc limiting part.

[0008] Further, the outer side of the upper filter shell is provided with an annular plate, the upper end of the fixed seat is integrally formed with the annular plate, and an assembly space of the lower filter shell is formed between the annular plate and the upper filter shell, and a first sealing rubber pad is arranged in the assembly space of the lower filter shell;A groove is arranged on the outer periphery of the upper filter shell, and a second sealing rubber pad is arranged in the groove;When the lower filter shell is assembled with the upper filter shell, the upper end of the lower filter shell abuts against the first sealing rubber pad, and the inner side of the lower filter shell contacts the second sealing rubber pad.

[0009] Further, the water inlet of the first filter shell is provided with a water inlet electromagnetic valve.

[0010] Further, a cleaning tank is arranged in the equipment shell, a micro diaphragm pump is arranged on the side of the cleaning tank, the liquid suction end of the micro diaphragm pump extends to the inside of the cleaning tank, the liquid discharge pipe of the micro diaphragm pump extends to the inside of the upper filter shell, and the liquid inlet of the cleaning tank is threadedly connected with an upper cover after extending out of the equipment shell;A blowdown port is arranged at the lower end of the lower filter shell, and a blowdown electromagnetic valve is arranged at the blowdown port.

[0011] Further, a float ball is arranged in the cleaning tank, an indicator is arranged on the upper surface of the float ball, and the upper end of the indicator is slidably connected with the through hole in the middle of the upper cover.

[0012] Furthermore, the pump body of the booster pump is detachably connected to the first filter housing and the second filter housing on both sides thereof, so as to transmit the vibration of the booster pump in the working state to the first filter housing and the second filter housing; and anti-vibration rubber pads are arranged between the first filter housing and the second filter housing and the equipment housing.

[0013] Furthermore, a first ear plate is provided on the outside of the pump body of the booster pump, and a second ear plate is provided on the side of the first filter housing and the second filter housing close to the booster pump, and the first ear plate and the second ear plate are detachably connected by screws.

[0014] Furthermore, a wing plate is provided on the outside of the pump body of the booster pump, and the wing plate is arranged in a spiral manner. The outer walls of the first filter housing and the second filter housing are both provided with inclined grooves. After the lower filter housing and the upper filter housing are assembled, the wing plate is located in the inclined groove.

[0015] The beneficial effects of the present invention are:

[0016] 1. The RO reverse osmosis water treatment equipment disclosed in this invention improves the structure of the filter housing. While ensuring a sealed connection between the upper and lower filter housings, it also achieves a detachable connection between the two, facilitating replacement of the filter element in the filter housing.

[0017] 2. In the RO reverse osmosis water treatment equipment disclosed herein, the tail end of the arc-shaped stopper of the elastic tongue is tilted downward and lower than the horizontal fixing portion. This structural design provides a guide for the rapid insertion of the block during assembly of the lower and upper filter housings.

[0018] In addition, an avoidance groove is provided on the upper surface edge of the horizontal part of the fixed seat. The avoidance groove is the downward pressure of the arc-shaped limiting part. When the block enters the open accommodation space, the arc-shaped limiting plate is squeezed and deformed downward. The avoidance groove provides a space for the bending deformation of the arc-shaped limiting plate, thereby ensuring the rationality of the structural design.

[0019] 3. The RO reverse osmosis water treatment equipment disclosed in the present invention has an additional filter element cleaning function. The filter element, especially the PP cotton filter element located in the first filter housing, can be cleaned regularly, which can extend the filter element replacement cycle. The cleaned sewage is discharged through the sewage outlet. It is suitable for commercial medium and large-scale water treatment equipment, effectively reducing the operating costs caused by filter element replacement.

[0020] 4. The booster pump in the existing water treatment equipment is directly connected to the equipment casing. Since the booster pump will vibrate when working, it will cause the overall vibration of the water treatment equipment. Regardless of whether it is a horizontal water treatment equipment or a wall-mounted water treatment equipment, this vibration will have an adverse effect on the connection position between the equipment casing and the installation site. A common vibration reduction measure is to set an anti-seismic rubber pad between the equipment casing and the installation site, but this approach is only applicable to horizontal equipment. Currently, there is no effective means of vibration reduction for wall-mounted water treatment equipment on the market.

[0021] The booster pump in the present invention adopts a structural design connected to two filter housings, and a vibration-damping rubber pad design is adopted between the two filter housings and the equipment housing. On the one hand, the vibration transmission due to the booster pump can be prevented at the filter housing. On the other hand, the vibration can be transmitted to the water body and the filter element inside the filter housing. On the one hand, the kinetic energy of the water body in the filter housing can be increased, so that it can pass through the filter element quickly. It is also beneficial for the blockage on the outer surface of the filter element (especially PP cotton) to vibrate downward and slide off, thereby accelerating the water output speed of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the structure of the present invention in the embodiment;

[0023] Figure 2 It is a schematic diagram of a partial cross-sectional structure of the present invention in an embodiment;

[0024] Figure 3 for Figure 2 Enlarged view of the area marked A;

[0025] Figure 4 for Figure 2 Enlarged view of the area marked B;

[0026] Figure 5 Schematic diagram of the structure of the booster pump detachably connected to the first filter housing and the second filter housing in the embodiment;

[0027] Figure 6 Schematic diagram of another structure of detachable connection between the booster pump and the first filter housing and the second filter housing in the embodiment.

[0028] In the figure: 10-equipment housing, 20-first filter housing, 21-upper filter housing, 22-lower filter housing, 221-sewage discharge solenoid valve, 23-PP cotton filter element, 24-fixed seat, 241-avoidance groove, 25-block, 26-elastic tongue, 27-annular plate, 28-first sealing gasket, 29-second sealing gasket, 30-boosting pump, 31-first ear plate, 32-second ear plate, 33-screw, 34-wing plate, 40-second filter housing, 41-RO reverse osmosis membrane filter element, 50-cleaning tank, 51-micro diaphragm pump, 52-upper cover, 53-float, 54-pointer, 60-control panel. Implementation Method

[0029] The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present invention.

[0030] See also Figure 1 This embodiment provides an RO reverse osmosis water treatment device, including an equipment housing 10, a first filter housing 20, a booster pump 30, a second filter housing 40, a cleaning tank 50 and a control panel 60. The first filter housing 20, the booster pump 30 and the second filter housing 40 are arranged in the equipment housing from left to right, and the cleaning tank 50 is located above the booster pump 30.

[0031] See also Figure 2 The first filter housing 20 and the second filter housing 40 both include an upper filter housing 21 and a lower filter housing 22 that are sealed and connected. A water inlet solenoid valve is provided at the water inlet of the first filter housing 20. A PP cotton filter element 23 is provided in the first filter housing 20, and an RO reverse osmosis membrane filter element 41 is provided in the second filter housing 40.

[0032] See also Figure 3 The upper filter shell 21 and the lower filter shell 22 are detachably connected by multiple groups of connecting components, which include a fixing seat 24, a block 25 and an elastic tongue 26. The fixing seat 24 is arranged at the lower end of the upper filter shell 21, and the fixing seat 24 includes an integrally formed vertical portion and a horizontal portion. The horizontal portion and the lower edge of the upper filter shell 21 form an open accommodating space, and the block 25 is arranged on the outside of the lower filter shell 22. The elastic tongue 26 includes a horizontal fixing portion and an arc-shaped limiting portion. One end of the horizontal fixing portion is fixedly connected to the horizontal portion of the fixing seat 24, and the arc-shaped limiting portion forms an upward protrusion at the entrance of the open accommodating space; after the lower filter shell 22 and the upper filter shell 21 are assembled, the block 25 is located in the open accommodating space, and the arc-shaped limiting portion is on the outside of the block 25 and forms a limit on it. An escape groove 241 is provided on the upper edge of the horizontal portion of the fixing seat 24 . The tail end of the arc-shaped limiting portion of the elastic tongue 26 is tilted downward and lower than the horizontal fixing portion. The escape groove 241 is located below the tail end of the arc-shaped limiting portion.

[0033] See also Figure 3 An annular plate 27 is provided on the outer side of the upper filter housing 21. The upper end of the fixing seat 24 is integrally formed with the annular plate 27. The space between the annular plate 27 and the upper filter housing 21 forms the assembly space for the lower filter housing. A first sealing rubber gasket 28 is provided in the assembly space of the lower filter housing. A groove is provided on the outer periphery of the upper filter housing 21, and a second sealing rubber gasket 29 is provided in the groove. When the lower filter housing 22 is assembled with the upper filter housing 21, the upper end of the lower filter housing 22 abuts against the first sealing rubber gasket 28, and the inner side of the lower filter housing 22 contacts the second sealing rubber gasket 29. The lower end of the lower filter housing 22 extends from the equipment housing 10.

[0034] See also Figure 2 The water pumping pipe of the boosting pump 30 is connected to the drain port provided on the first filter housing 20 , and the drain pipe of the boosting pump 30 is connected to the water inlet on the second filter housing 40 .

[0035] See also Figure 5 As one implementation of the present invention, the pump body of the booster pump 30 is detachably connected to the first filter housing 20 and the second filter housing 40 on either side thereof. Specifically, a first ear plate 31 is provided on the outer side of the pump body of the booster pump 30, and a second ear plate 32 is provided on the side of the first filter housing 20 and the second filter housing 40 proximate to the booster pump 30. The first and second ear plates 31 and 32 are detachably connected via screws 33. Anti-vibration rubber pads (not shown) are provided between the first and second filter housings and the equipment housing. The anti-vibration rubber pads are specifically located where the upper and lower filter housings contact the equipment housing. The structural design of this embodiment transmits the vibration of the booster pump 30 during operation to the first and second filter housings 20 and 40. This detachable connection provides a more stable connection between the booster pump 30 and the first and second filter housings 20 and 40.

[0036] See also Figure 6 As another implementation of the present invention, the pump body of the booster pump 30 is detachably connected to the first filter housing 20 and the second filter housing 40 on either side thereof. Specifically, a spirally arranged wing plate 34 is provided on the outer side of the pump body of the booster pump 30. The outer walls of the first filter housing 20 and the second filter housing 40 are both provided with an inclined groove (not shown in the figure). When the lower filter housing 22 is assembled with the upper filter housing 21, the wing plate 34 is located within the inclined groove. Seismic pads (not shown) are provided between the first and second filter housings and the equipment housing. The seismic pads are specifically located where the upper and lower filter housings contact the equipment housing. The structural design of this embodiment can also transmit the vibration of the booster pump 30 during operation to the first and second filter housings 20 and 40. The difference from the previous detachable connection structure is that the lower filter housing 22 is more convenient to assemble and disassemble.

[0037] See also Figure 4 Two micro-diaphragm pumps 51 are installed on the side of the cleaning tank 50. The suction ends of the micro-diaphragm pumps 51 extend into the interior of the cleaning tank 50, and the discharge tubes of the micro-diaphragm pumps 51 extend into the interior of the upper filter housing 21. The liquid inlet of the cleaning tank 50 extends from the equipment housing 10 and is threadedly connected to the upper cover 52. The lower end of the lower filter housing 22 is provided with a sewage outlet, and the sewage outlet is equipped with a sewage discharge solenoid valve 221. The interior of the cleaning tank 50 is equipped with a float 53, and the upper surface of the float 53 is provided with a pointer 54. The upper end of the pointer 54 is slidably connected to the through hole in the middle of the upper cover 52.

[0038] The method of use of the present invention is:

[0039] During normal use, water from an external source enters the first filter housing 20 through a pipeline controlled by a water inlet solenoid valve. Suspended matter, particulate matter, rust, and other impurities in the external water are filtered by the PP cotton filter element 23 within the first filter housing 20. The water is then pressurized by the booster pump 30 and enters the second filter housing 40. Bacteria, heavy metals, and other organic impurities in the water are further filtered by the RO reverse osmosis membrane filter element 41 within the second filter housing 40 before flowing out. Because the booster pump 30 of the present invention is connected to the first and second filter housings 20 and 40, the vibration of the booster pump 30 increases the kinetic energy of the water within the first and second filter housings 20 and 40, thereby improving the water output efficiency of the water treatment equipment.

[0040] Cleaning state: By operating the control panel, the micro-diaphragm pump 51 on the left side is activated, and the water inlet solenoid valve is controlled to be closed. The micro-diaphragm pump 51 on the left side pumps the filter element cleaning agent inside the cleaning tank 50 into the interior of the first filter housing 20, and then the filter element cleaning agent soaks and cleans the PP cotton filter element 23. After soaking for a period of time, the sewage discharge solenoid valve 221 below the first filter housing 20 is activated to discharge the wastewater in the first filter housing 20. At the same time, the water inlet solenoid valve is activated to flush the PP cotton filter element 23. Similarly, when the RO reverse osmosis membrane filter element 41 needs to be cleaned, the micro-diaphragm pump 51 on the right side is activated, and the cleaning agent can soak the RO reverse osmosis membrane filter element 41. The sewage discharge solenoid valve 221 below the second filter housing 40 is opened. At the same time, the booster pump 30 is activated to flush the RO reverse osmosis membrane filter element 41, thereby achieving self-cleaning of the filter element.

[0041] Filter element replacement process: Rotate the lower filter shell 22, the lower filter shell 22 drives the block 25 to move out of the open accommodation space, take out the internal PP cotton filter element 23 or RO reverse osmosis membrane filter element 41, replace the new filter element, and then insert the lower filter shell 22 into the upper filter shell 21. When the block enters the open accommodation space, the arc-shaped limit plate is squeezed and deformed downward, and the avoidance groove 241 provides space for the bending deformation of the arc-shaped limit plate.

[0042] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention description and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. RO reverse osmosis water treatment equipment, comprising an equipment housing and, from left to right, a first filter housing, a booster pump, and a second filter housing, each of the first filter housing and the second filter housing comprising an upper filter housing and a lower filter housing that are sealed together. A filter element is disposed within each of the first filter housing and the second filter housing. A water pump of the booster pump is connected to a drain port provided on the first filter housing, and a drain pipe of the booster pump is connected to a water inlet on the second filter housing. The equipment is characterized in that: The upper filter shell and the lower filter shell are detachably connected by multiple groups of connecting components, and the connecting components include a fixing seat, a clamping block and an elastic tongue. The fixing seat is arranged at the lower end of the upper filter shell, and the fixing seat includes an integrally formed vertical portion and a horizontal portion. An open accommodating space is formed between the horizontal portion and the lower edge of the upper filter shell. The clamping block is arranged on the outside of the lower filter shell, and the elastic tongue includes a horizontal fixing portion and an arc-shaped limiting portion. One end of the horizontal fixing portion is fixedly connected to the horizontal portion of the fixing seat, and the arc-shaped limiting portion forms an upward protrusion at the entrance of the open accommodating space; after the lower filter shell and the upper filter shell are assembled, the clamping block is located in the open accommodating space, and the arc-shaped limiting portion is on the outside of the clamping block and forms a stopper on it. Limiting, an avoidance groove is provided on the upper surface edge of the horizontal part of the fixing seat, the tail end of the arc-shaped limiting part of the elastic tongue is inclined downward and lower than the horizontal fixing part, and the avoidance groove is located below the tail end of the arc-shaped limiting part; the pump body of the booster pump and the first filter housing and the second filter housing on both sides of it are detachably connected to transmit the vibration of the booster pump in the working state to the first filter housing and the second filter housing; an anti-seismic rubber pad is provided between the first filter housing and the second filter housing and the equipment housing, and a wing plate is provided on the outside of the pump body of the booster pump, and the wing plate is spirally arranged. The outer walls of the first filter housing and the second filter housing are both provided with inclined grooves. After the lower filter housing and the upper filter housing are assembled, the wing plate is located in the inclined groove.

2. The RO reverse osmosis water treatment equipment according to claim 1, characterized in that: An annular plate is provided on the outer side of the upper filter shell, and the upper end of the fixing seat is integrally formed with the annular plate. An assembly space of the lower filter shell is formed between the annular plate and the upper filter shell, and a first sealing rubber gasket is provided in the assembly space of the lower filter shell; a groove is provided on the outer periphery of the upper filter shell, and a second sealing rubber gasket is provided in the groove; when the lower filter shell is assembled with the upper filter shell, the upper end of the lower filter shell is against the first sealing rubber gasket, and the inner side of the lower filter shell is in contact with the second sealing rubber gasket.

3. The RO reverse osmosis water treatment equipment according to claim 1, characterized in that: A water inlet solenoid valve is provided at the water inlet of the first filter housing.

4. The RO reverse osmosis water treatment equipment according to claim 1, characterized in that: A cleaning box is arranged in the equipment housing, and a micro diaphragm pump is provided on the side of the cleaning box. The suction end of the micro diaphragm pump extends to the interior of the cleaning box, and the discharge pipe of the micro diaphragm pump extends to the interior of the upper filter shell. The liquid inlet of the cleaning box extends from the equipment housing and is threadedly connected to an upper cover; a sewage outlet is arranged at the lower end of the lower filter shell, and a sewage discharge solenoid valve is arranged at the sewage outlet.

5. The RO reverse osmosis water treatment equipment according to claim 4, characterized in that: A float is provided inside the cleaning box, a pointer is provided on the upper surface of the float, and the upper end of the pointer is slidably connected with the through hole in the middle of the upper cover.

6. The RO reverse osmosis water treatment equipment according to claim 1, characterized in that: A first ear plate is provided on the outside of the pump body of the booster pump, and a second ear plate is provided on the side of the first filter housing and the second filter housing close to the booster pump. The first ear plate and the second ear plate are detachably connected by screws.

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