Disclosure of Invention
In order to solve the technical problems, the invention aims to provide a concentrated water hydraulic RO water storage system.
The invention is realized by the following technical scheme:
the concentrated water hydraulic RO water storage system comprises a preposed filter element communicated with raw water, wherein the water outlet end of the preposed filter element is connected with the water inlet end of an RO filter element, the pure water outlet end of the RO filter element is connected with a first chamber of a water storage barrel, the concentrated water outlet end of the RO filter element is divided into two paths, one path is connected with an electromagnetic valve, the other path of the concentrated water outlet end of the RO filter element is connected with a second chamber of the water storage barrel through a reversing valve, and the water outlet end of the electromagnetic valve is connected with an interface of the reversing valve in a branch way; the first chamber of the water storage barrel is connected with a rear filter element, and the rear filter element is connected with a water purification faucet.
In the embodiment of the invention, the reversing valve comprises a body, wherein the body is provided with a first interface, a second interface, a third interface and a fourth interface; a switching mandrel for switching the second interface to be communicated with the first interface or the third interface is arranged in the body; one end of the switching mandrel is matched with the first interface, and the other end of the switching mandrel is matched with the fourth interface.
In the embodiment of the invention, the concentrated water outlet end of the RO filter element is connected with a first interface, the second interface is connected with a second chamber of the water storage barrel, the third interface is connected with the water outlet end of the electromagnetic valve, and the fourth interface is connected with the water inlet end of the rear filter element.
In the embodiment of the invention, the concentrated water outlet end of the RO filter element is also connected with a switch valve; the water outlet end of the electromagnetic valve is connected with the water outlet end of the preposed filter element through a pipeline.
In the embodiment of the invention, the water storage barrel comprises a barrel body, wherein the barrel body is provided with a first opening connected with the first chamber and a second opening connected with the second chamber; the first chamber is a water storage bag arranged in the barrel body, and the second chamber is a space formed by the periphery of the water storage bag and the barrel body.
In the embodiment of the invention, the water storage barrel comprises a barrel body, wherein the barrel body is provided with a first opening connected with the first chamber and a second opening connected with the second chamber; the barrel body is internally provided with a piston which divides the barrel body into a first chamber and a second chamber, and the barrel body is internally provided with a piston rod matched with the piston.
In the embodiment of the invention, the preposed filter element and the RO filter element are provided with a pressure pump, and a one-way valve is arranged between the pure water outlet end of the RO filter element and the water storage barrel.
In the embodiment of the invention, a pressure switch and a flowmeter are arranged between the first chamber of the water storage barrel and the rear filter element.
The concentrated water hydraulic RO water storage system has the following beneficial effects: by combining the characteristics of the RO machine, the air bag structure is replaced by the concentrated water pressure, so that the water making speed is improved, the utilization rate of the water storage barrel is improved, and the water storage capacity is increased. Under the condition of keeping the water storage amount unchanged, the volume of the water storage barrel can be reduced and even the water storage barrel is integrated into the RO machine, and the water storage barrel does not need to be externally arranged. Meanwhile, when the concentrated water is supplied for pressure, the RO membrane is also washed, so that the pollution and blockage of the RO membrane are slowed down, and the service life of the RO filter element is prolonged.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to fall within the scope of the invention.
In a first embodiment of the water storage system of the present invention, reference is specifically made to fig. 1 of the accompanying drawings:
the concentrated water hydraulic RO water storage system comprises a preposed filter element 10 communicated with raw water, wherein the water outlet end of the preposed filter element is connected with the water inlet end of an RO filter element 20, the pure water outlet end of the RO filter element is connected with a first chamber 31 of a water storage barrel 30, one way of the concentrated water outlet end of the RO filter element is connected with an electromagnetic valve 50, the other way of the concentrated water outlet end of the RO filter element is connected with a second chamber 32 of the water storage barrel through a reversing valve 50, and the water outlet end of the electromagnetic valve is connected with an interface of the reversing valve 40 in a way of one way; the first chamber of the water storage tank is coupled to a post-cartridge 60, which is coupled to a water purification faucet 70.
The preposed filter element and the RO filter element are provided with a pressure pump 81, and a one-way valve 82 is arranged between the pure water outlet end of the RO filter element and the water storage barrel.
A pressure switch 83 and a flowmeter 84 are arranged between the first chamber of the water storage barrel and the rear filter element.
In this embodiment:
1. when the RO system starts to operate, the water storage barrel is in an empty state, the water purification faucet is closed, the flowmeter is not rotated, the reversing valve is in a state of being communicated with the water outlet end of the electromagnetic valve, at the moment, the second chamber of the water storage barrel is connected with the tail end of the electromagnetic valve (the concentrated water outlet pipe), the pressure is zero, pure water starts to store water through the first opening of the water storage barrel, and when the water storage barrel is full, the pressure of the first chamber rises to the pressure switch take-off value, and the pressure pump stops working.
2. When the water purification tap is opened, the flowmeter rotates, the reversing valve is switched and communicated with the concentrated water outlet end of the RO filter element, the pressure of the concentrated water outlet end is increased along with the start-up of the pressure switch when the pressure of the first chamber of the water storage barrel is reduced, the pressure of the concentrated water outlet end is increased, the concentrated water enters the second chamber of the water storage barrel at a certain speed, the speed is higher than the flow rate of the concentrated water during normal water production, the effect of quickly flushing the surface of the RO membrane is achieved, the fouling and blocking of the membrane are slowed down, the service life of the RO membrane is prolonged, and the concentrated water simultaneously pushes pure water to be quickly discharged from the first chamber.
3. The water purifying tap is closed, the flowmeter stops rotating, the reversing valve is switched, the concentrated water in the second chamber of the water storage barrel is discharged in a state of being communicated with the water outlet end of the electromagnetic valve, and the RO system continues to work to store pure water in the first chamber of the water storage barrel and then stops operating.
The scheme of the embodiment is characterized in that: the water outlet and the water storage of the water storage barrel are realized by utilizing the concentrated water pressure, and the RO membrane is flushed when the concentrated water is used for supplying pressure, so that the pollution and blockage of the RO membrane are slowed down, and the service life of the RO filter element is prolonged.
In a second embodiment of the water storage system of the present invention, reference is specifically made to fig. 2 of the accompanying drawings:
the concentrated water hydraulic RO water storage system comprises a preposed filter element 10 communicated with raw water, wherein the water outlet end of the preposed filter element is connected with the water inlet end of an RO filter element 20, the pure water outlet end of the RO filter element is connected with a first chamber 31 of a water storage barrel 30, one way of the concentrated water outlet end of the RO filter element is connected with an electromagnetic valve 50, the other way of the concentrated water outlet end of the RO filter element is connected with a second chamber 32 of the water storage barrel through a reversing valve 50, and the water outlet end of the electromagnetic valve is connected with an interface of the reversing valve 40 in a way of one way; the first chamber of the water storage tank is coupled to a post-cartridge 60, which is coupled to a water purification faucet 70.
The reversing valve used in this embodiment is mechanical, and specifically includes a body, where a first interface 41, a second interface 42, a third interface 43, and a fourth interface 44 are disposed on the body; a switching mandrel 45 for switching the second interface to be communicated with the first interface or the third interface is arranged in the body; one end of the switching mandrel is matched with the first interface, the other end of the switching mandrel is matched with the fourth interface, and the sectional area S2 of one end of the switching mandrel is smaller than the sectional area S1 of the other end of the switching mandrel. The concentrated water outlet end of the RO filter element is connected with a first interface, the second interface is connected with a second chamber of the water storage barrel, the third interface is connected with the water outlet end of the electromagnetic valve, and the fourth interface is connected with the water inlet end of the rear filter element.
In a preferred embodiment of the present invention, an annular groove 46 is provided in the middle of the switching mandrel for communicating the second port with the third port. A first boss 47 for abutting against one end of the switching mandrel is arranged in the body close to the first interface, and a second boss 48 for abutting against the other end of the switching mandrel is arranged in the body close to the fourth interface.
The mechanical reversing valve of the invention specifically comprises 4 interfaces (a first interface, a second interface, a third interface and a fourth interface), a movable switching mandrel, and the areas of the two ends of the switching mandrel are determined by the pressure of an access system. The reversing principle is determined by the product of the area and the pressure at the two ends of the switching mandrel in the mechanical reversing structure, namely P1 (the pressure at the fourth interface), S1 and P2 (the pressure at the first interface), S2; when P1 is less than P2 is less than S2, the switching core moves downwards, and the switching channel is positioned in the first interface and the second interface to be communicated; when P1S 1 > P2S 2, the switching core shaft moves upwards, and the switching channel is positioned in the second interface and the third interface to be communicated. (the fourth interface is not communicated with the first interface, the second interface and the third interface, and is only used for pressure transmission).
The preposed filter element and the RO filter element are provided with a pressure pump 81, and a one-way valve 82 is arranged between the pure water outlet end of the RO filter element and the water storage barrel. A pressure switch 83 and a flowmeter 84 are arranged between the first chamber of the water storage barrel and the rear filter element.
In this embodiment, the water storage tub is provided with a pure water passage and a concentrated water passage. The pure water channel of the water storage barrel is connected to the rear end of the pure water outlet of the RO membrane, a mechanical reversing valve is arranged behind the concentrated water channel of the RO membrane, a first interface of the mechanical reversing valve is connected to the front of the electromagnetic valve, a second interface of the mechanical reversing valve is communicated with a second chamber of the water storage barrel, a third interface of the mechanical reversing valve is connected to the rear end of the pure water channel of the hydraulic water storage barrel, and a fourth interface of the mechanical reversing valve is connected to the rear end of the pure water channel of the hydraulic water storage barrel.
The working procedure of this embodiment is:
1. and (3) a water storage process: the water purifying tap is closed, the pressure of the fourth interface of the mechanical reversing valve gradually rises until P1S 1 is more than P2S 2, and the switching core shaft of the mechanical reversing valve moves upwards (the pressure of P2 is the pressure of the front end of the electromagnetic valve). The waterway is communicated with the waterway communicated with the second interface and the third interface through the second chamber of the water storage barrel. Pure water and concentrated water are separated from raw water through the RO filter element, the pure water enters the first chamber of the hydraulic water storage barrel to store water, the concentrated water is extruded from the second chamber of the water storage barrel to be discharged to the tail end of the electromagnetic valve, and when the water storage of the first chamber of the water storage barrel is full, the water pressure reaches a set water pressure to trigger the control sensor, and the water purifier is stopped.
2. And (3) drainage: and when the water purifying tap is opened, the pressure of a fourth interface of the mechanical reversing valve is 0, and at the moment, P1 is less than P2 and S2, (the pressure of P2 is the pressure of the front end of the electromagnetic valve) the switching core shaft of the mechanical reversing valve moves downwards. The front end of the water routing electromagnetic valve is communicated with the second chamber of the water storage barrel and the water channel communicated with the first connector and the second connector. Raw water is separated into pure water and concentrated water through the RO filter element, the concentrated water enters the second chamber of the water storage barrel in a large flux way after passing through the RO filter element by the waterway of the mechanical reversing valve, the concentrated water enters the second chamber of the water storage barrel in a large flux way, the first chamber is extruded, the pure water in the first chamber of Chu Shuitong is discharged, and the water outlet flow of the water purification faucet is improved.
The example is compared with the example: the scheme one reversing valve is controlled by a flowmeter and needs to be electrically controlled for supporting, the scheme one reversing valve is controlled by the pressure of the water purification machine system and automatically switches waterways, and the scheme one reversing valve does not need to be electrically controlled and reduces power consumption.
Meanwhile, the scheme is also suitable for a system waterway for improving the water efficiency by refluxing the wastewater.
In a third embodiment of the water storage system according to the present invention, reference is specifically made to fig. 3 of the accompanying drawings:
the concentrated water hydraulic RO water storage system comprises a preposed filter element 10 communicated with raw water, wherein the water outlet end of the preposed filter element is connected with the water inlet end of an RO filter element 20, the pure water outlet end of the RO filter element is connected with a first chamber 31 of a water storage barrel 30, the concentrated water outlet end of the RO filter element is connected with an electromagnetic valve 50, the concentrated water outlet end of the RO filter element is connected with a second chamber 32 of the water storage barrel through a reversing valve 50, and the water outlet end of the electromagnetic valve is also connected with an interface of the reversing valve 40; the first chamber of the water storage tank is coupled to a post-cartridge 60, which is coupled to a water purification faucet 70.
The reversing valve used in this embodiment is mechanical, and specifically includes a body, where a first interface 41, a second interface 42, a third interface 43, and a fourth interface 44 are disposed on the body; a switching mandrel 45 for switching the second interface to be communicated with the first interface or the third interface is arranged in the body; one end of the switching mandrel is matched with the first interface, the other end of the switching mandrel is matched with the fourth interface, and the sectional area S2 of one end of the switching mandrel is smaller than the sectional area S1 of the other end of the switching mandrel. The concentrated water outlet end of the RO filter element is connected with a first interface, the second interface is connected with a second chamber of the water storage barrel, the third interface is connected with the water outlet end of the electromagnetic valve, and the fourth interface is connected with the water inlet end of the rear filter element.
In a preferred embodiment of the present invention, an annular groove 46 is provided in the middle of the switching mandrel for communicating the second port with the third port. A first boss 47 for abutting against one end of the switching mandrel is arranged in the body close to the first interface, and a second boss 48 for abutting against the other end of the switching mandrel is arranged in the body close to the fourth interface.
The mechanical reversing valve of the invention specifically comprises 4 interfaces (a first interface, a second interface, a third interface and a fourth interface), a movable switching mandrel, and the areas of the two ends of the switching mandrel are determined by the pressure of an access system. The reversing principle is determined by the product of the area and the pressure at the two ends of the switching mandrel in the mechanical reversing structure, namely P1 (the pressure at the fourth interface), S1 and P2 (the pressure at the first interface), S2; when P1 is less than P2 is less than S2, the switching core moves downwards, and the switching channel is positioned in the first interface and the second interface to be communicated; when P1S 1 > P2S 2, the switching core shaft moves upwards, and the switching channel is positioned in the second interface and the third interface to be communicated. (the fourth interface is not communicated with the first interface, the second interface and the third interface, and is only used for pressure transmission).
The preposed filter element and the RO filter element are provided with a pressure pump 81, and a one-way valve 82 is arranged between the pure water outlet end of the RO filter element and the water storage barrel. A pressure switch 83 and a flowmeter 84 are arranged between the first chamber of the water storage barrel and the rear filter element. The concentrated water outlet end of the RO filter element is also connected with a switch valve 51; the water outlet end of the electromagnetic valve is connected with the water outlet end of the front filter element through a pipeline 52.
In this embodiment, the water storage tub is provided with a pure water passage and a concentrated water passage. The pure water channel of the water storage barrel is connected to the rear end of the pure water outlet of the RO membrane, a mechanical reversing valve is arranged behind the concentrated water channel of the RO membrane, a first interface of the mechanical reversing valve is connected to the front of the electromagnetic valve, a second interface of the mechanical reversing valve is communicated with a second chamber of the water storage barrel, a third interface of the mechanical reversing valve is connected to the rear end of the pure water channel of the hydraulic water storage barrel, and a fourth interface of the mechanical reversing valve is connected to the rear end of the pure water channel of the hydraulic water storage barrel.
The working procedure of this embodiment is:
1. and (3) a water storage process: the water purifying tap is closed, the pressure of the fourth interface of the mechanical reversing valve gradually rises until P1S 1 is more than P2S 2, and the switching core shaft of the mechanical reversing valve moves upwards (the pressure of P2 is the pressure of the front end of the electromagnetic valve). The waterway is communicated with the waterway communicated with the second interface and the third interface through the second chamber of the water storage barrel. Pure water and concentrated water are separated from raw water through the RO filter element, the pure water enters the first chamber of the hydraulic water storage barrel to store water, the concentrated water is extruded from the second chamber of the water storage barrel to be discharged to the tail end of the electromagnetic valve, and when the water storage of the first chamber of the water storage barrel is full, the water pressure reaches a set water pressure to trigger the control sensor, and the water purifier is stopped.
2. And (3) drainage: and when the water purifying tap is opened, the pressure of a fourth interface of the mechanical reversing valve is 0, and at the moment, P1 is less than P2 and S2, (the pressure of P2 is the pressure of the front end of the electromagnetic valve) the switching core shaft of the mechanical reversing valve moves downwards. The water is communicated with the water channel communicated with the first connector and the second connector by the front opening and closing of the electromagnetic valve and the Chu Shuitong second chamber. Raw water is separated into pure water and concentrated water through the RO filter element, the concentrated water enters the second chamber of the water storage barrel in a large flux way after passing through the RO filter element by the waterway of the mechanical reversing valve, the concentrated water enters the second chamber of the water storage barrel in a large flux way, the first chamber is extruded, the pure water in the first chamber of Chu Shuitong is discharged, and the water outlet flow of the water purification faucet is improved.
The comparison of this example and example two is: the water way for refluxing the concentrated water is added, so that the flow of the concentrated water can be increased, the effect of quickly flushing the surface of the RO membrane is achieved, the fouling of the membrane is slowed down, and the service life of the RO membrane is prolonged.
In the embodiment of the present invention, the capacities of the first chamber and the second chamber of the water storage barrel may be changed from each other, and the following two embodiments may be referred to specifically.
Referring to fig. 4 of the drawings, embodiment one:
the water storage barrel comprises a barrel body, wherein a first opening 33 connected with the first chamber and a second opening 34 connected with the second chamber are arranged on the barrel body; the first chamber is a water storage bag arranged in the barrel body, and the second chamber is a space formed by the periphery of the water storage bag and the barrel body.
Referring to fig. 5 of the drawings, embodiment two:
the water storage barrel comprises a barrel body, wherein a first opening 33 connected with the first chamber and a second opening 34 connected with the second chamber are arranged on the barrel body; a piston 35 dividing the barrel into a first chamber and a second chamber is arranged in the barrel, and a piston rod 36 matched with the piston is also arranged in the barrel.
The foregoing disclosure is merely illustrative of the preferred embodiments of the present invention and is not intended to limit the scope of the claims herein, as equivalent changes may be made in the claims herein without departing from the scope of the invention.