CN107010696B - A pressurized water purification device, system and implementation method integrating membrane pump - Google Patents

Abstract

The present invention discloses a membrane pump-integrated pressurized water purification device, system and implementation method, comprising: a head cover and a shell, wherein: the head cover and the shell are assembled to form a front-stage water-making chamber, and a low-pressure interception and pressurization mechanism is arranged in the head cover and the front-stage water-making chamber; a reverse osmosis membrane filter element is arranged in the shell; the low-pressure interception and pressurization mechanism comprises: a first spring for supporting the interception valve plate above the water outlet to cut off the water flow, and being compressed under the pressure of cutting off the water flow. The membrane pump-integrated pressurized water purification device, system and implementation method of the present invention utilizes the characteristic that the pressure of wastewater discharge is greater than the pressure of clean water to drive the silicone diaphragm to move repeatedly to form a mechanical pump structure, and does not need to use electrical control components that require electrical energy, thus eliminating electronic parts failure, ensuring product quality and stability, and reducing after-sales maintenance rate and service costs.

Description

A pressurized water purification device, system and implementation method integrating membrane pump

technical field

The invention relates to an RO reverse osmosis water purification device, a system and a method thereof, in particular to an improvement of a hydraulically driven double pressurized water purification device, a system and an application realization method integrated with a reverse osmosis membrane pump.

Background technique

In the prior art, reverse osmosis, also known as reverse osmosis (referred to as RO, Revers Osmosis), is a type of membrane separation technology that uses pressure difference as a driving force to perform filtration operations. "Osmosis" is a physical phenomenon. Reverse osmosis is to apply more pressure than natural osmosis in water containing salt and various fine impurities (that is, raw water), so that water reverse osmosis from the side with high concentration to low concentration on one side, so as to realize the filtering and purification function.

The reverse osmosis membrane (Revers Osmosis Film) can intercept various inorganic ions, colloidal substances and macromolecular solutes in the water, so as to obtain purified pure water, while the vast majority of bacteria, germs, fine impurities, organic matter, heavy metals in the raw water. , and other harmful substances can be discharged through the waste water outlet. Due to the simple process of reverse osmosis, it has developed rapidly in the past 20 years and is widely used in pure water preparation and household direct drinking fountains.

The household reverse osmosis water purification system equipment 60 on the prior art market, as shown in FIG. 1, also known as pure water machine and RO machine, adopts a reverse osmosis membrane with a filtration aperture of 0.0001 micron as the main filter element. Water equipment, which usually accepts urban water supply water source 01, filters out purified water through a water purification component 02 composed of an electric pump and a reverse osmosis membrane, and then sends it to a water storage tank 03, and finally provides it to the drinker; because the porosity of the osmotic membrane reaches nanoscale , when the water passes through the diaphragm during the water production process, it will cause a large pressure drop. Therefore, when the household RO water purifier encounters low urban tap water pressure, the final pressure of the pure water passing through the reverse osmosis membrane is very low, which may be so low that it cannot be injected into the water storage tank, and its working efficiency is also seriously reduced. A certain pressure can be applied to increase the output pressure of pure water when the tap water is filtered through the reverse osmosis membrane. Therefore, a water pump and electricity are required. Therefore, not only the structure of the equipment is complicated, but also electrical safety exists because of the use of electrical equipment. concerns of the problem.

The prior art household RO water purifier is generally equipped with a booster pump, the main purpose of which is to increase the water pressure to meet the requirement of increasing the pure water output pressure during reverse osmosis membrane filtration when the tap water pressure is low. Generally speaking, when the tap water pressure reaches 1.8kgf/cm ² , it can basically satisfy the normal operation of the water production of the household RO water purifier, and it is known that the water pressure of most urban tap water is about 2kg pressure, so it can generally work normally. . However, the water pressure of urban tap water is not stable. In addition, the different floor positions of users will also lead to different water pressures of urban water. However, the RO water purifier products with pumps do not respond to these changes accordingly. If the water pressure is above 2kgf/cm ² , the electric pump may still be started to pressurize again, which will not only waste power resources for a long time, but also easily cause the water pressure to be too high for a long time, resulting in the increase of electrical control components. This is a fatal flaw in the design of the current electric pump RO water purifier system equipment, and it is also the location of frequent failures.

Usually this traditional process relies on the electric pump to increase the water pressure of the RO water purifier, and the system must be equipped with a power adapter, power supply, transformer, electric pump, low pressure valve, high pressure valve, solenoid valve, flush valve and MCU circuit controller, etc. Electrical control components to control the on-off operation of waterways and circuits. Therefore, this RO water purifier with electric pump not only has a water circuit but also a circuit system, the system control structure is complex, there are many connectors, and the failure rate is high. The quality of products is very unstable, which greatly increases the frequency of after-sales maintenance and service costs, and easily leads to damage to consumers. These problems have been plaguing manufacturers, terminal sellers and users. .

In addition, this kind of traditional RO water purifier with electric pump needs to be equipped with a complete set of electrical control components, so the material cost is high, and the links from production material preparation, final assembly production, performance testing and other links are relatively cumbersome, resulting in low production efficiency and need to add more Manpower, so labor costs are also high, such an industrial ecology restricts the circulation of product orders and supply and market competitiveness.

The household RO reverse osmosis pure water machine system with electric pump on the market will generate waste water (concentrated water) during the operation. During the water production process, the pressure of the pure water storage tank gradually increases, and the back pressure will increase, so the reverse osmosis membrane The output of pure water will decrease, resulting in an increase in wastewater discharge. The usual ratio is more than 1:3, that is, for each cup of pure water, more than three cups of wastewater need to be discharged, resulting in a serious waste of water resources, which is not in line with the economy. efficiency and energy conservation and environmental protection policies.

Due to the current serious water pollution, RO reverse osmosis pure water machines have been widely used in units, factories, laboratories, offices, schools, homes, bars, coffee shops, shopping malls and other places as safe drinking water equipment, and have generally entered people's lives. in life. Therefore, the market urgently needs a non-electric RO reverse osmosis that does not require electricity at all and does not use electrical control components, which can completely avoid the failure of electronic parts, greatly improve product quality stability, and reduce after-sales maintenance and service costs. Water purifier technology, thereby eliminating the hidden worries of electrical safety issues, and reforming the fatal flaw in the system design of reverse osmosis water purifier products for a long time.

Therefore, the existing technology still needs to be improved and developed.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a membrane pump-integrated pressurized water purification device, system and implementation method, aiming at solving some fatal defects in the design of household RO reverse osmosis pure water system device, eliminating the hidden worries of electrical safety problems, The main purpose is to eliminate the use of electrical control components that require electrical energy to prevent electronic parts failure, ensure product quality and stability, reduce after-sales maintenance rates and service costs, and at the same time, simplify product structure, greatly improve production efficiency, and effectively save labor costs and materials. cost, reform the traditional and cumbersome production format of reverse osmosis water purifiers for a long time; save water for users, save electricity, reduce overhead, save energy and environmental protection, and enhance product market competitiveness.

In order to solve the above-mentioned problems thoroughly, the technical scheme of the present invention is as follows:

A membrane pump-integrated pressurized water purification device, which is used in a reverse osmosis water purification system, comprises: a head cover and a shell, wherein: the head cover and the shell are assembled to form a front-stage water-making cabin , and a low-pressure shut-off pressurization mechanism is arranged in the head cover and the front water-making tank;

The casing is provided with a reverse osmosis membrane filter element, which is arranged between the casing and the casing to accommodate water to be filtered, and is arranged in the center of the reverse osmosis membrane filter element to accommodate pure water;

The low-pressure shut-off booster mechanism includes:

A U-shaped part, and a shut-off valve sheet is arranged in the U-shaped part, and the chamber in the U-shaped part is divided into an upper chamber and a lower chamber;

the upper chamber communicates with the water source inlet;

A first spring supporting the shut-off valve plate is provided in the lower chamber; and

At least one water outlet and at least one through-pressure hole are provided on the side wall of the U-shaped component, and the through-pressure hole is used to communicate with the lower chamber and the area between the casing and the reverse osmosis membrane filter element;

The first spring is used to hold the shut-off valve piece higher than the water outlet to cut off the water flow, and is compressed under the pressure of cutting off the water flow until the shut-off valve piece is lower than the water outlet to release the water flow. The flow of water to be filtered in the upper chamber.

In the said membrane-pump-integrated pressurized water purification device, wherein the first spring and the shut-off valve plate are set to function in the range of 1.2-1.4 kgf/cm ² for the water pressure at the water source inlet.

In the said membrane pump-integrated pressurized water purification device, the U-shaped component is a plastic part.

The said membrane pump-integrated pressurized water purification device, wherein a rear-stage pressurized cabin is further arranged at the lower end of the reverse osmosis membrane filter element and the casing;

The rear-stage pressurization chamber is divided into a pure water chamber and a waste water chamber by a silica gel diaphragm, which are respectively connected to the first pure water outlet and the first waste water outlet of the front-stage water-making chamber;

At least one check valve is arranged in the pure water chamber to prevent backflow of pure water;

A silicone diaphragm linkage pressurization mechanism is arranged in the waste water chamber, which is used for the silicone diaphragm to convert the pressure difference between the waste water chamber and the pure water chamber into driving the pure water in the pure water chamber.

The said membrane pump-integrated pressurized water purification device, wherein the silicone diaphragm linkage pressurization mechanism further includes:

a linkage lever bracket, which is hinged with the silicone diaphragm, and is supported and reset by a set of linkage support rods with a second spring;

The lower end of the linkage lever bracket is drivingly connected to a piston rod, and the piston rod is used to link the silica gel diaphragm and open and close the second wastewater outlet on the wastewater chamber.

In the said membrane pump-integrated pressurized water purification device, wherein the aperture of the first waste water outlet is larger than that of the second waste water outlet.

The said membrane pump-integrated pressurized water purification device, wherein the check valve is an umbrella-shaped silica gel check valve.

A system applying the membrane pump-integrated pressurized water purification device, wherein three-stage filter elements for primary filtration are further provided before the water purification device.

A method for applying the membrane pump-integrated pressurized water purification device, comprising the following steps:

A. Utilize the cut-off pressurization to improve the purification efficiency of the reverse osmosis membrane filter element;

B. Use the higher pressure difference in the wastewater chamber than the pure water chamber to drive the delivery of pure water.

In the method, the step B further includes disposing a check valve to prevent backflow of pure water in the pure water channel of the pure water chamber.

The membrane-pump-integrated pressurized water purification device, system and implementation method provided by the present invention use the feature that the pressure of waste water discharge is greater than the pressure of purified water to drive the silica membrane to move repeatedly, forming a mechanical pump structure, There is no need to use electrical control components that require electrical energy, which eliminates the failure of electronic parts, ensures product quality and stability, and reduces after-sales maintenance rates and service costs; at the same time, the product structure is simplified and the product market competitiveness is enhanced.

Description of drawings

1 is a schematic diagram of a RO reverse osmosis water purification system in the prior art.

FIG. 2 is a schematic diagram of the hydraulically driven double-pressurized water purification system in which the RO reverse osmosis membrane and the pump are integrated according to the present invention.

FIG. 3 is a cross-sectional view of the hydraulically driven double booster type water purifying device in which the reverse osmosis membrane and the pump are integrated according to the present invention.

4a and 4b are a cross-sectional view and a schematic diagram of the working principle of the water source low-pressure cut-off and booster mechanism of the present invention.

FIG. 5 is a cross-sectional view of the front-stage water-making chamber of the hydraulically driven double-pressurized water purification device of the present invention.

FIG. 6 is a cross-sectional view of the rear-stage pressurized compartment of the hydraulically driven double pressurized water purification device of the present invention.

FIG. 7 is an exploded view of the hydraulically-driven double-pressurized water purifying device in which the reverse osmosis membrane and the pump are integrated according to the present invention.

FIG. 8 is a side view of the hydraulically driven double booster type water purifying device in which the reverse osmosis membrane and the pump are integrated according to the present invention.

9 and 10 are schematic diagrams of equipment of a household non-electric double-pressurized reverse osmosis water purification system according to the present invention.

Detailed ways

Below in conjunction with the accompanying drawings, the specific implementation mode of the device and method of the present invention will be described in detail:

The membrane-pump-integrated pressurized water purification device, system and implementation method of the present invention are household non-electric double-pressurized reverse osmosis water purification system equipment, and discloses a hydraulically driven dual-stage reverse osmosis membrane and pump integrated. Pressurized water purification device, the device is mainly equipped with a low-pressure cut-off pressurization mechanism in the front section of the water-making chamber and the silicone diaphragm linkage pressurization mechanism in the rear section of the pressurized chamber, with an adjustable waste water flow control valve, two Silicone check valve and six water inlets and outlets together form a modularized water purification and pressurized membrane pump integrated hydraulic drive double pressurized water purification device.

The RO reverse osmosis membrane water purification system of the present invention also discharges waste water while producing pure water, and the pressure of the waste water is greater than the pressure of the pure water. The non-electrically driven booster device specifically uses the pressure difference energy to drive the repeated movement of the silicone diaphragm to increase the pure water output of the reverse osmosis water purification system and increase the pure water output pressure.

The device of the invention can keep the TDS value of pure water constant, and has the functions of efficiently saving more than 95% of waste water discharge and automatically closing and starting the system. No electrical control components are used in the entire equipment and system, which completely avoids the problem of electronic parts failure. The product quality is very stable, reducing after-sales maintenance and service costs, saving water and electricity for a long time. It is a membrane that is both environmentally friendly and energy-saving. A pump-integrated hydraulic-driven double-pressurized water purification device and a household non-electric double-pressurized reverse osmosis water purification system equipment.

In the preferred embodiment of the membrane-pump-integrated pressurized water purification device of the present invention, the hydraulically driven double pressurized water purification device integrating the RO reverse osmosis membrane and the pump is adopted, which is a reverse osmosis type water purification device. The system, as shown in FIG. 5 , this device includes: a head cover 11 and a casing 10, the casing 10 is cylindrical, and the RO reverse osmosis membrane core 22 is assembled in it, and the head cover 11 is assembled in the The upper end of the casing 10 is provided with a low-pressure shut-off pressurizing mechanism, namely the first pressurizing mechanism. The head cover and the casing form a front-stage pressurized cabin, which cooperates with the rear-section pressurized cabin at the lower end of the casing 11. The pressurized chamber is provided with a silicone diaphragm linkage pressurization mechanism, that is, a second pressurization mechanism, and an adjustable flow control valve or a throttling waste water ratio accessories are provided outside the shell, which can form the hydraulic drive of the present invention. Dual boost mode.

The present invention also provides a household non-electric double-pressurized reverse osmosis water purification system and method, as shown in Figures 9 and 10, using the above-mentioned device of the present invention and the method of secondary pressurization to achieve connection in urban areas After the tap water is sourced, it can be preliminarily filtered and pretreated with three pre-filtered filters, and then connected to the hydraulically-driven double-pressurized water purification device integrating the reverse osmosis membrane and pump of the present invention for deep purification treatment. After RO reverse osmosis The permeable membrane filter element intercepts various harmful substances in the water, thereby obtaining purified pure water. The pure water increases the output pressure of the pure water through the silicone diaphragm linkage pressurization mechanism, and is injected into the water storage bucket through the rear filter element and connected to the direct drinking water faucet. Harmful substances in the raw water are discharged through the waste water outlet.

As shown in FIG. 2, in the most basic realization system of a RO reverse osmosis water purification system 70 of the present invention, it is connected to the urban tap water source 05, and can be pre-filtered 06 for preliminary filtration pretreatment. The filtration 06 is the primary filtration, and common filtration methods in the prior art can be used, such as a filter screen; and then the hydraulic-driven double-pressurized water purification device 80 integrating the reverse osmosis membrane and the pump of the present invention is connected for deep purification. The RO reverse osmosis membrane filter element 22 of the present invention intercepts various inorganic ions, colloidal substances and macromolecular solutes in the water, thereby obtaining purified pure water. Then, it is injected into the water storage tank 07 through the second pure water outlet 28, and finally provided to the drinker for use. The vast majority of bacteria, germs, fine impurities, organic matter, heavy metals, and other harmful substances in the raw water are discharged through the waste water outlet 27 .

In the preferred embodiment of the hydraulically driven double pressurized water purification device 80 in which the reverse osmosis membrane and the pump are integrally arranged according to the present invention, as shown in FIG. The ballast chamber 30 has two parts. 4a, 4b and 5, there is a water source inlet 14 above the head cover 11, which can be set in the center or slightly offset position of the head cover 11 for communication Input external water; the entire head cover 11 is provided with a low-pressure shut-off booster mechanism 50, which is provided with a shut-off valve piece 53, and the shut-off valve piece 53 is arranged in a cavity connected to the water source inlet 14, the cavity portion It is partitioned into an upper chamber 56 and a lower chamber 57 by the shut-off valve piece 53 (only the upper chamber 56 communicates with the water source inlet 14 ).

The low-pressure trapping booster mechanism, namely the first booster mechanism, as shown in FIG. 5, includes the following components: the head cover 11, together with the housing 10, form a communicating cavity; a U-shaped plastic with threaded teeth; 51, a first spring 52, and the shut-off valve piece 53 are arranged together in the cavity enclosed by the U-shaped plastic piece 51 and the head cover 11; the first spring 52 is arranged in the lower cavity 57, from the The bottom holds the shut-off valve plate 53; the threads of the U-shaped plastic part 51 are used to be assembled on the inner side wall of the head cover 11, and the side of the U-shaped plastic part 51 has at least one preferably set There are three water outlets 54; the bottom of the U-shaped plastic part 51 can also be provided with through-pressure holes 55, preferably four.

A slot 13 for inserting the RO reverse osmosis membrane filter element 22 is arranged at the end of the front-stage water-making chamber 20 in the housing 10 of the present invention, and a first pure water outlet 17 is arranged inside the slot 13. The center of the entire RO filter element 22 is a pure water channel. The compartment between the outer side of the RO filter element 22 and the housing 10 is set as a channel for water to be filtered. Introduce, part of the water is filtered by the reverse osmosis membrane filter element 22 to form pure water, which is output from the first pure water outlet 17; a first waste water outlet 15 is provided on the inner side of the upper and lower sides of the shell, and the filtered waste water is discharged from the The first waste water outlet 15 penetrates through the casing 10 and leads to the outside of the water-producing compartment in the front section of the compartment. A quick-plug connector 16 is arranged in communication with the first waste water outlet 15, and an adjustable flow control valve 12 can be communicated and arranged, or directly connected to a fitting for controlling the throttling waste water ratio.

As shown in Figures 4a and 4b for the structure and working principle of the above-mentioned low-pressure shut-off and booster mechanism 50 of the present invention, the elastic coefficient of the first spring 52 has been preset and selected, and the flow pressure of the influent water limited to the water source 59 is 1.2-1.4 Only within the range of kgf/cm ² will the cut-off booster mode be automatically turned on. When the flow pressure of the inlet water is in the ultra-low pressure condition in the range of 1.2-1.4kgf/cm ² , the elastic force of the first spring 52 will support the shut-off valve piece 53 so that the shut-off valve piece 53 is higher than the U-shaped plastic part 51 The three water outlets 54 on the side start to intercept the water flow of the water source 59 (in the case of higher water pressure, the water flow pressure will press the first spring 52 through the shut-off valve plate 53, so that the shut-off valve plate 53 is kept below three. The position of the water outlet 54, at this time, the low-pressure cut-off pressurization mechanism 50 does not work), after the water source 59 is intercepted and stopped, the water source 59 is rapidly and gradually pressurized in the upper chamber 56 of the U-shaped plastic part 51, and at the same time passes through The shut-off valve plate 53 is acted by the accumulated water pressure in the upper chamber 56, which drives the first spring 52 to compress and descend; at the same time, the pure water and waste water in the front and rear cabins are continuously discharged and present a low pressure state. Since the water making chamber 20 is communicated, the lower chamber 57 is also in a low pressure state, which is helpful for the lowering of the shut-off valve piece 53 during the shut-off process.

In the upper chamber 56, the water to be filtered from the water source 59 accumulates and pressurizes up to 1.5kgf/cm ² (set by the elastic coefficient of the first spring 52 and the area of the shut-off valve plate 53) , the shut-off valve piece 53 will descend and be lower than the position of the water outlet 54 on the side of the U-shaped plastic part 51. At this time, the water in the upper chamber 56 has been pressurized, and the pressurized water flows from the water outlet 54 It is quickly discharged into the outer chamber of the RO reverse osmosis membrane filter element 22, and at the same time, the upper chamber 56 of the U-shaped plastic part 51 is instantly decompressed, and the water flows into the water-making chamber. Because the lower chamber 57 is communicated with the water-making chamber through the pressure hole 55, the pressure in the lower chamber 57 is rapidly increased, and the elastic restoring force of the first spring 52 also acts together, so that the shut-off valve plate 53 can be raised again. to the top of the water outlet 54, thereby starting to intercept the water flow of the water source 59 again.

This repeated cycle, using the mechanism of intercepting the water source 59 and delaying the discharge, can increase the inlet water pressure, so as to keep the pressure of the water source 59 constant and not lower than 1.5kgf/cm ² into the water-making chamber to ensure RO reverse osmosis. Water purifiers can maintain efficient production of pure water and reduce waste water discharge. Moreover, the above-mentioned structure adopts a mechanical structure completely, does not need to use electrical equipment, has a simple structure, has a long service life, and is safe.

The low-pressure shut-off booster mechanism 50 of the present invention, when the water pressure of the water source 59 is greater than 1.5kgf/cm ² (inclusive), the shut-off valve piece 53 will be constantly lower than the U-shaped plastic part due to the water flow pressure At the position of the water outlet 54 on the side of 51, the low-pressure shut-off booster mechanism 50 is in a state without shut-off booster action; when the flowing water pressure of the water source 59 is less than 1.1kgf/cm ² (inclusive), the shut-off booster is invalid, and its shut-off valve piece 53 It is always in a position higher than the water outlet 54 on the side of the U-shaped plastic part 51, which belongs to the state of closing the water source 59 and entering the water-making cabin; only when the flowing water pressure of the water source 59 is 1.2-1.4 kgf/cm ² will work. Of course, in the present invention Under the same working principle and structure, the above working range can be modified by setting and modifying the parameters of the above spring and shut-off valve. Even within the above working range, due to the differences in the specific parameters set and the external water supply pressure , the frequency of the delayed discharge through the intercepted water source 59 is also different. However, in any case, the above-mentioned low-pressure shut-off booster mechanism 50 of the present invention can automatically select and match its own working water pressure, which has excellent technical effects.

As shown in FIG. 6 , in the preferred embodiment of the pressurized water purification device, system and implementation method with integrated membrane pump according to the present invention, the pressurized cabin 30 in the rear section is arranged at the lower end of the water production cabin 20 in the front section. , it can also be set relatively separately. The core improvement point is to interact the conveying process of pure water with the conveying process of waste water, and use the pressure of waste water to realize the conveying drive of pure water. A pure water outlet 17 and a first waste water outlet 15 are respectively communicated with the components of the rear-stage pressurization chamber 30 .

The rear-stage pressurization chamber 30 has a pure water inlet 25 connected to the first pure water outlet 17 of the front-stage water production chamber 20 and a waste water inlet 24 communicated with the first waste water outlet 15. The pure water inlet 25 is provided with The pure water channel is connected to the final pure water outlet of the rear-stage pressurization chamber 30, that is, the second pure water outlet 28, so as to transport the pure water to the water storage tank. In the pure water channel from the pure water inlet 25 to the second pure water outlet 28, at least one umbrella-shaped silica gel check valve is provided, so as to exert pressure on the peristalsis of the pure water channel, which can promote the pure water to the output direction delivery. In a preferred setting example, as shown in FIG. 6 , an umbrella-shaped silica gel check valve 18 and 29 are respectively provided on the inner side of the pure water inlet 25 and the second pure water outlet 28 to prevent pure water from entering pure water. Backflow in the chamber 32 (check valve 18 ) or prevent pure water from being injected into the water storage tank and backflow (check valve 29 ).

The rear-stage pressurization chamber 30 is also equipped with a silicone diaphragm linkage pressurization mechanism 41, as shown in FIG. A pure water chamber 32 ie a pure water channel and a waste water chamber 33 are provided. Pure water enters the pure water chamber 32 through the pure water inlet 25, and the fluids in the pure water chamber 32 communicate with each other and can flow out from the second pure water outlet 28. An umbrella-shaped silica gel counter is arranged in the second pure water outlet 28. Stop valve 29 to prevent backflow of pure water after being injected into the water storage tank.

The waste water from the front-stage water production cabin 20 enters the waste water chamber 33 through the waste water inlet 24 from the first waste water outlet 15 . The diameter of the waste water inlet 24 is set larger than that of the second waste water outlet 27, so that the pressure in the waste water chamber 33 is greater than that of the pure water chamber 32, that is, the water pressure of the second pure water outlet 28 is lower than the water pressure of the second waste water outlet 27, according to According to the principle of differential pressure, the waste water can push the silicone diaphragm 31 to move toward the pure water chamber 32, thereby increasing the output pressure of pure water. After being squeezed by the silicone diaphragm 31, it cooperates with the umbrella-shaped silicone check valve to pass the increased pressure pure water through the first The second pure water outlet 28 is injected into the water storage tank.

The above working process of the present invention is realized by a silicone diaphragm linkage pressurizing mechanism 41 arranged in the rear-stage pressurizing chamber 30, as shown in FIG. 6, its structure includes: a circular base 34, on the circular base The silicone diaphragm 31, the diaphragm link rod 35, the linkage lever bracket 36, the linkage support rod 37, the support groove rod 39, the second spring 38, the shaft rod 46, the piston rod 26, etc., are arranged on the seat 34, wherein the silicone diaphragm 31 is close to The pure water chamber 32 is provided to compressibly drive the pure water chamber 32; the silica gel diaphragm 31 separates the pressurized chamber 30 into a pure water chamber 32 and a waste water chamber 33, due to the pressure of the waste water chamber 33 The pressure is greater than the pressure in the pure water chamber 32. Therefore, the driving force generated by the pressure difference can be driven by the silicone diaphragm 31 to drive the linkage lever bracket 36 and the linkage support rod 37 covered with the second spring 38 to drive the piston rod 26 to open or close the second waste water outlet. 27, that is, the silicone diaphragm 31 can move due to the pressure difference energy in the pure water chamber 32 and the waste water chamber 33, and together form a linkage mechanism to realize the pressurization drive of the pure water in the pure water chamber 32.

The circular base 34 is provided with a plurality of shaft holes 44 and a piston rod hole 42, which are respectively matched with the shaft hole 44 and can be inserted into the shaft rod 46, and matched with the piston rod hole 42, respectively. The piston rod 26 is inserted, the piston rod 26 can move telescopically in the piston rod hole 42 , and the front end of the piston rod 26 can block the second waste water outlet 27 . The silicone diaphragm 31 and the diaphragm link rod 35 are hinged through the shaft rod 46, and the shaft rod 46 hinged on the lower position of the garden base 34 is the rotation center of the diaphragm link rod 35, and is hinged on the upper position of the shaft rod 46. It is the silicone diaphragm 31; at the same time, a linkage lever bracket 36 is also provided, which can be linked with the diaphragm link rod 35, and one end of which has a U-shaped fork 43 is forked on the piston column 26 for connecting the silicone diaphragm. 31 When the compressed pure water chamber 32 is moved laterally, the piston rod 26 is driven to move backwards and retreat at the same time; the other end of the linkage lever bracket 36 is hinged with the shaft 46 on the upper position of the garden base 34; , after inserting a linkage support rod 37 into the second spring 38 and the support groove rod 39, one end of the linkage support rod 37 is hinged with the diaphragm link rod 35, and the other end is provided with a V-shaped fork to withstand the linkage lever bracket 36 above the corresponding position.

As shown in FIG. 6 , the piston rod 26 according to the present invention forms a linkage through the above-mentioned hinge structure, and its front end is connected to open and close the second waste water outlet 27 , and at the same time cooperate with and link the silica gel diaphragm 31 to the pure water chamber 32 The pure water inside is driven, so that the piston rod 26 closes the second waste water outlet 27 when the silica gel diaphragm 31 moves to send out the pure water stroke; and when the silica gel diaphragm 31 moves and sucks the pure water stroke, the second waste water outlet 27 is opened, Therefore, the silica gel diaphragm 31 is moved by the pressure difference energy in the pure water chamber 32 and the waste water chamber 33. Due to the action of the piston rod 26, the silica gel diaphragm 31 can be intermittently and repeatedly moved. The structure also does not require electrical components to be realized, and the mechanical structure is completely adopted, so the structure is simple, the service life is long, the failure rate is low, and there is no electrical safety problem.

In the double-pressurized water purification device, system and implementation method of the present invention, when the waste water pushes the silicone diaphragm 31 to move, it also drives the linkage lever bracket 36 and the linkage support rod 37 covered with the second spring 38 in the waste water chamber 33 During the movement, the linkage support rod 37 sleeved with the second spring 38 will drive the U-shaped fork of the linkage lever bracket 36 to open the piston column 26. At this time, the waste water is quickly discharged through the second waste water outlet 27, thus the waste water cavity The pressure in the chamber 33 is instantly lost, and the silicone diaphragm 31 is reset and moved toward the waste water chamber 33 accordingly. When the silicone diaphragm 33 performs the reset action, the linkage support rod 37 sheathed with the second spring 38 is reset under the action of the spring, which drives the U-shaped fork of the linkage lever bracket 36 to move the piston rod 26, and blocks the second waste water outlet 27. live. At this time, the pressure in the waste water chamber 33 increases rapidly, so that the silicone diaphragm 31 is repeatedly pushed to move toward the pure water chamber 32 again. Repeatedly in this way, the hydraulic pressurization of the pure water conveying process can be realized by using the wastewater pressure.

As shown in FIG. 3 and FIG. 8 , in the embodiment of the present invention, an adjustable flow control valve 12 or an accessory for throttling the waste water ratio can also be provided to control the waste water entering the waste water chamber 33 in the rear-stage pressurized cabin 30 . The flow rate is set outside the casing 10 and is bounded between the front and rear compartments, and is connected to the pipeline between the first waste water outlet 15 and the waste water inlet 24 of the front and rear compartments. Through this accessory, the flow rate of wastewater can be adjusted arbitrarily, so as to be suitable for various reverse osmosis membranes 21 with different specifications and different water pressures in different places, for example: under different water pressure conditions, or using conventional, low pressure, such as 50GDP to 200GDP with different specifications 2. When using an ultra-low pressure RO reverse osmosis membrane, the waste water flow control valve 12 can be adjusted and controlled to ensure that a certain pressure difference ratio is maintained between the pressure of the waste water chamber 33 and the pressure of the pure water chamber 32, so as to ensure the device of the present invention. Works fine.

As shown in FIG. 9, it is the household non-electrical double-pressurized reverse osmosis water purification system equipment 100 according to different preferred embodiments of the present invention, which can be connected to a city tap water source 101, and first passes through a plurality of pre-filters 102, After the 103 and 104 three-stage filter elements are preliminarily filtered and pretreated, they are then connected to the reverse osmosis membrane pump integrated hydraulically driven double-pressurized water purification device 105 of the present invention for deep purification treatment. Because the RO reverse osmosis membrane filter element intercepts water of various inorganic ions, colloidal substances and macromolecular solutes, so as to obtain purified pure water. The output pressure of pure water is increased through the silicone diaphragm linkage pressurization mechanism, stored in the storage bucket 109, and connected to the faucet 108 through the outlet of the rear filter element 106; Other harmful substances and the like are discharged through the waste water port 107 .

As shown in FIG. 10, it is the household non-electric double-pressurized reverse osmosis water purification system equipment 200 according to different preferred embodiments of the present invention, which can be connected to a city tap water source 201, and first passes through a plurality of pre-filters 202, After the 203 and 204 three-stage filter elements are preliminarily filtered and pretreated, they are then connected to the reverse osmosis membrane pump integrated hydraulic drive double-pressurized water purification device 205 of the present invention to carry out deep purification treatment. of various inorganic ions, colloidal substances and macromolecular solutes, so as to obtain purified pure water. The output pressure of pure water is increased through the silicone diaphragm linkage pressurization mechanism, stored in the storage bucket 209, and connected to the faucet 208 through the outlet of the rear filter element 206; Other harmful substances and the like are discharged through the waste water port 207 . The structure of the pre-filter shown in Figure 9 and Figure 10 will be different.

A hydraulically-driven double-pressurized water purification method integrating RO reverse osmosis membrane and pump of the present invention, as shown in Figures 7 and 8, is mainly applicable to a reverse osmosis type water purification system of reverse osmosis membranes, In a preferred embodiment of its implementation, the cabin inside the device is divided into a water production cabin in the front section, a pressurized cabin in the rear section, and low-pressure pressurized reverse osmosis water production is carried out respectively, and the rear section uses the waste water discharge and pure water. Differential pressure to achieve differential pressure boosting drive. The realization device is provided with corresponding water inlet and outlet ports between the front-stage water-making chamber and the rear-stage pressurized chamber, and two silica gel check valves are arranged in the pure water channel in the rear-stage pressurized chamber, so that With the drive of the silicone diaphragm. An adjustable flow control valve or an accessory for throttling the waste water ratio is also provided outside the casing, which is used to adjust the discharge rate of waste water.

The method of the present invention is provided with a low-pressure shut-off pressurization mechanism in the front-stage water-making chamber, and a silicone diaphragm linkage pressurization mechanism in the rear-stage pressurization chamber, forming a hydraulic-driven double-pressurized water purification mode in tandem. As we all know, the RO reverse osmosis membrane water purification system must also discharge waste water when producing pure water, and the pressure of the waste water is greater than the pressure of the pure water. Therefore, the present invention uses the pressure of the waste water discharged from the water purification system to pressurize the pure water. , and use an exquisite non-electrically driven booster device, specifically, the use of differential pressure energy to drive the repeated movement of the silicone diaphragm to increase the pure water output of the reverse osmosis water purification system and increase the pure water output pressure.

In the front-stage water-making chamber 20 according to the present invention, there is a water source inlet 59 above the head cover 11, and a low-pressure cut-off and pressurization mechanism is installed in the head cover 11. The mechanism to increase the water pressure to achieve a constant pressure of not less than 1.5kgf/cm ² enters the water-making chamber to ensure that the reverse osmosis water purifier can maintain efficient production of pure water and reduce waste water discharge. A slot for inserting RO reverse osmosis membrane filter element is arranged below the water-making cabin. The pure water outlet is arranged in the slot. There is a first waste water outlet 15 on the inner side and side of the cabin. The waste water outlet runs through the outside of the cabin. Plug connectors connect adjustable flow control valves or accessories for throttling the waste water ratio.

The low-pressure shut-off pressurization mechanism of the method of the present invention is divided into an upper chamber and a lower chamber by a shut-off valve sheet, and comprises: a head cover, a U-shaped plastic part with screw teeth, a first spring, and a shut-off valve sheet, There is a water outlet on the side of the U-shaped plastic part, and a pressure through hole at the bottom to communicate with the water-making chamber. The low-pressure shut-off booster mechanism will only start the shut-off booster mode because the first spring elastic coefficient is limited when the water inlet flow pressure of the water source is within the range of 1.2-1.4kgf/cm ² . When the flow pressure of the inlet water is within this range, the elastic force of the spring will hold the position of the shut-off valve plate higher than the three water outlets on the side of the U-shaped plastic part, thereby starting to intercept the water source. After the water source is intercepted and stopped, the upper chamber of the U-shaped plastic part is rapidly and gradually pressurized. Therefore, the shut-off valve piece is driven by the accumulated water pressure in the upper chamber to compress the first spring. At the same time, the front and rear chambers The pure water and waste water are continuously discharged in a low pressure state. Because the pressure through hole is connected to the water making chamber, the lower chamber is also in a low pressure state, which helps the shut-off valve plate to descend. When the accumulative pressurization of the water source in the upper chamber reaches 1.5kgf/cm ² , the shut-off valve piece will drop below the position of the water outlet on the side of the U-shaped plastic part. The pressure in the upper chamber of the plastic part is instantaneously depressurized, and the water flow enters the water-making chamber. Because the pressure hole in the lower chamber is connected to it, the pressure in the lower chamber increases rapidly, and the elastic force of the first spring raises the shut-off valve again to intercept the water source.

In this way, the mechanism of intercepting the water source and delaying the discharge is repeatedly used to increase the influent water pressure, so as to keep the water source constant at a pressure of not less than 1.5kgf/cm ² and enter the water-making chamber 20 to ensure that the RO reverse osmosis water purifier It can maintain efficient production of pure water and reduce waste water discharge. When the flowing water pressure of the water source is greater than 1.5kgf/cm ² (inclusive), the shut-off valve is always lower than the water outlet on the side of the U-shaped plastic part, and the low-pressure shut-off pressurization mechanism is in a state of no shut-off pressurization; when the water source flows When the water pressure is less than 1.1kgf/cm ² (inclusive), the shut-off pressurization is invalid, and the shut-off valve is always higher than the water outlet on the side of the U-shaped plastic part, which belongs to the state of closing the water source and entering the water-making cabin; only the water source flowing water pressure is 1.2 ~1.4kgf/cm ² only works. Of course, within this range, the frequency of intercepting the water source and delaying the discharge is also different.

The rear-stage pressurized chamber of the method of the present invention has a pure water inlet and a waste water inlet connected to the front-stage water-making chamber, and an umbrella-shaped silica gel check valve is arranged in the pure water inlet to prevent pure water from entering the pure water chamber backflow. A silicone diaphragm linkage pressurization mechanism is installed in the rear pressurized cabin, and the silicone diaphragm on the mechanism divides the pressurized cabin into a pure water chamber and a waste water chamber. The fluid in the pure water chamber is interconnected with the inlet and outlet of the pure water, and an umbrella-shaped silica gel check valve is also arranged in the pure water outlet to prevent the pure water from flowing backward after being stored in the storage bucket. The fluid in the waste water chamber is connected to the inlet and outlet of the waste water, because the diameter of the waste water inlet is larger than that of the waste water outlet, and the pressure of the waste water chamber is higher than the pressure of the pure water chamber, that is, the water pressure of the pure water outlet is lower than the water pressure of the waste water outlet, according to the pressure The difference principle wastewater can push the silicone diaphragm to move toward the pure water chamber, thereby increasing the output pressure of the pure water. When the waste water pushes the silicone diaphragm, it also drives the linkage lever bracket and the linkage support rod covered with the spring to move toward the waste water chamber. During the movement stroke, the linkage support rod covered with the second spring drives the U-shaped fork of the linkage lever bracket to open. At this time, the waste water is quickly discharged through the outlet, and the pressure in the waste water chamber is instantly lost; then the silicone diaphragm is reset, and the U-shaped fork of the linkage lever bracket is driven by the linkage support rod with the second spring in the reset stroke of the silicone diaphragm. The piston rod blocks the waste water outlet again. At this time, the pressure in the waste water chamber increases rapidly, and the silicone diaphragm is repeatedly pushed to move toward the pure water chamber. By repeating this continuously, the hydraulic boosting mode of the present invention can be realized.

The silicone diaphragm linkage pressurization mechanism described in the method of the present invention is as described above, and the specific structure will not be repeated. The device, system and method of the present invention can keep the TDS (Tatal Dissolved Solids) value of pure water constant, increase the output pressure of pure water, have the functions of efficiently saving more than 95% of waste water discharge and automatically shutting down and starting the system, completely adopting mechanical structure, without The use of any electrical control components completely avoids the failure of electronic parts, the product quality is very stable, the after-sales maintenance and service costs are reduced, water and electricity are saved for a long time, and it is both environmentally friendly and energy-saving.

It should be understood that, for those skilled in the art, improvements or changes can be made according to the above description, and all these improvements and changes should fall within the protection scope of the appended claims of the present invention.

Claims (10)

1. An integrative booster-type purifier of membrane pump, its is used for reverse osmosis formula water purification system, the device includes: skull, casing, its characterized in that: the head cover and the shell are assembled to form a front-section water making cabin, and a low-pressure intercepting and pressurizing mechanism is arranged in the head cover and the front-section water making cabin;

a reverse osmosis membrane filter element is arranged in the shell, water to be filtered is accommodated between the reverse osmosis membrane filter element and the shell, and pure water is accommodated in the center of the reverse osmosis membrane filter element;

the low-pressure intercepting booster organ comprises:

the U-shaped component is internally provided with a cut-off valve plate which divides a cavity in the U-shaped component into an upper cavity and a lower cavity;

the upper chamber is communicated with a water source inlet;

a first spring which supports the interception valve plate is arranged in the lower cavity; and

the side wall of the U-shaped component is provided with at least one water outlet and at least one pressure through hole, and the pressure through hole is used for communicating the lower chamber with the area between the shell and the reverse osmosis membrane filter element;

the first spring is used for supporting the intercepting valve block to be higher than the water outlet so as to intercept water flow, and the intercepting valve block is compressed under the pressure of the intercepted water flow until the intercepting valve block is lower than the water outlet so as to release the water flow to be filtered in the upper cavity.

2. The membrane-pump integrated supercharged water purification device of claim 1, wherein the first spring and the cut-off valve plate are arranged to set the water pressure at the water source inlet to be 1.2-1.4 kgf/cm²Function within the range.

3. The membrane-pump integrated supercharged water purification device of claim 1 or 2, wherein the U-shaped member is a plastic member.

4. The membrane-pump integrated supercharged water purifying device according to claim 1 or 2, characterized in that a rear-stage supercharging chamber is further arranged at the lower ends of the reverse osmosis membrane filter element and the shell;

the rear-section pressurizing cabin is divided into a pure water chamber and a waste water chamber by a silica gel diaphragm and is respectively communicated with a first pure water outlet and a first waste water outlet of the front-section water making cabin;

at least one check valve is arranged in the pure water chamber and used for preventing the pure water from flowing backwards;

and a silica gel diaphragm linkage booster organ is arranged in the wastewater chamber and is used for driving the silica gel diaphragm to convert the pressure difference between the wastewater chamber and the pure water chamber into the pure water in the pure water chamber.

5. The membrane-pump integrated supercharged water purification device of claim 4, wherein the silica gel diaphragm-linked supercharging organ further comprises:

the linkage lever bracket is hinged with the silica gel diaphragm and is supported and reset by a linkage supporting rod sleeved with a second spring;

the lower extreme drive of linkage lever support connects a piston post, the piston post is used for the linkage silica gel diaphragm opens and shuts second waste water outlet on the waste water cavity.

6. The membrane pump integrated booster water purification device according to claim 5, wherein the first wastewater outlet has a larger aperture than the second wastewater outlet.

7. The membrane-pump integrated supercharged water purification device according to claim 5, wherein the check valve is an umbrella-shaped silica gel check valve.

8. A system using the membrane pump integrated booster-type water purification apparatus as claimed in claim 4, wherein three stages of filter elements for primary filtration are further provided in front of the water purification apparatus.

9. A method of applying the membrane pump integrated booster water purifier as claimed in claim 4, comprising the steps of:

A. the interception pressurization is utilized to improve the purification efficiency of the reverse osmosis membrane filter element;

B. the pure water is driven to be conveyed by utilizing the pressure difference of the waste water chamber higher than the pressure of the pure water chamber.

10. The method according to claim 9, wherein the step B further comprises providing a check valve for preventing reverse flow of pure water in the pure water passage of the pure water chamber.

Images