A pure water purification and heating machine system

Abstract

The present invention discloses a pure water machine system for purification and heating, which includes a heating unit, a flow control pump, a reverse osmosis membrane module, and a pretreatment filter element. The water outlet end of the heating unit is connected to a hot water faucet, and its water inlet end is connected to a first one-way joint. The first one-way joint is connected to a high-pressure switch. A cold water faucet is provided between the high-pressure switch and the first one-way joint. The inlet end of the pretreatment filter element is connected to a pressure reducing valve, and its outlet end is respectively communicated with a second one-way joint and the reverse osmosis membrane module. A booster pump and a solenoid valve are provided on the connecting water path between the reverse osmosis membrane module and the pretreatment filter element. The concentrated water outlet of the reverse osmosis membrane module is connected to a flushing solenoid valve, and the purified water outlet is connected to the high-pressure switch. A flow control pump and a flow control valve are provided on the water path at the water inlet end of the heating unit. The flow control valve is provided with a water inlet, a water outlet, and a return port. The water outlet is connected to the flow control pump, the water inlet is connected to the first one-way joint, and the return port is connected to the second one-way joint. The present invention can effectively control the water flow rate and improve the heating effect; it ensures the normal operation of the whole machine system.

Description

Technical Field

[0001] The present invention relates to the technical field of water purifiers, and in particular to a heat purification water purifier system. Background Art

[0002] With economic development, water resources are deteriorating in many areas, with increasing shortages and pollution, raising the question of drinking water safety for urban residents. To address the secondary contamination of urban tap water and the presence of harmful substances in tap water due to source water contamination, more and more household water purifiers using reverse osmosis membranes as their core filtration units are entering the market. Existing household water purifiers utilize reverse osmosis membranes as their core filtration units. After multi-stage pretreatment and pressurization of tap water before entering the reverse osmosis membrane unit, the resulting purified water fully meets the drinking water standards of developed countries.

[0003] At present, in general pure water machine systems, the general configuration is to directly connect the pipeline to the heating unit, and the purified water directly enters the heating unit for heating. However, the water flow entering the heating unit is uncontrolled, resulting in poor heating effect, excess water cannot flow back, and the system cannot operate normally. Summary of the invention

[0004] The purpose of the present invention is to provide a heat-purifying water machine system for controlling the water flow entering the heating unit to achieve a better heating effect. The excess water can also flow back for secondary filtration to ensure the normal operation of the entire system.

[0005] In order to solve the above technical problems, the present invention adopts the following solutions:

[0006] A heat-purifying water machine system comprises a heating unit, a flow control pump, a reverse osmosis membrane group, and a pretreatment filter element. The water outlet end of the heating unit is connected to a hot water faucet, and its water inlet end is connected to a first one-way joint, the first one-way joint is connected to a high-pressure switch, a cold water faucet is provided between the high-pressure switch and the first one-way joint, the reflux port of the flow control valve is connected to a second one-way joint, the inlet end of the pretreatment filter element is connected to a pressure reducing valve, and the outlet end thereof is respectively connected to the second one-way joint and the reverse osmosis membrane group. A boosting pump and a solenoid valve are provided on the connecting water path between the reverse osmosis membrane group and the pretreatment filter element, the concentrated water outlet of the reverse osmosis membrane group is connected to a flushing solenoid valve, and the clean water outlet is connected to the high-pressure switch. A flow control pump and a flow control valve are provided on the water path at the water inlet end of the heating unit. The flow control valve is provided with a water inlet, a water outlet and a reflux port. The water outlet is connected to the flow control pump, the water inlet is connected to the first one-way joint, and the reflux port is connected to the second one-way joint.

[0007] Compared with the prior art, a flow control pump and a flow control valve are provided at the water inlet end of the heating unit in this solution. A return port is provided on the flow control valve. Through the combination of the flow control pump and the flow control valve, the water flow rate into the heating unit is controlled doubly, so that the heating power of the heating unit can effectively match the corresponding water flow rate, ensuring the heating effect. At the same time, the excess water returns to the reverse osmosis membrane module through the return port and the second one-way joint, which can effectively ensure the normal operation of the overall system.

[0008] Preferably, the flow control valve includes a valve seat and a valve body hermetically sleeved on the valve seat. The water inlet and the return port are provided on the valve seat, and the water outlet is provided on the valve body. An inlet chamber communicating with the water inlet and the return port is provided inside the lower part of the valve body. An atmosphere chamber is provided inside the upper part of the valve body. The atmosphere chamber is communicated with the atmosphere through an atmosphere hole on the side of the valve body. A sealed pressure water chamber is provided in a partitioned manner above the atmosphere chamber. The pressure water chamber is communicated with the water outlet. A flow control component is provided on the water path between the water inlet and the water outlet.

[0009] Preferably, the flow control component includes a pressure-sensitive diaphragm, a return spring, and a control rod. The periphery of the pressure-sensitive diaphragm is tightly sealed between the valve cover and the valve body. A pressure water chamber communicating with the water outlet is formed between the valve cover and the pressure-sensitive diaphragm. An atmosphere chamber is formed between the pressure-sensitive diaphragm and the inner wall of the valve body. One end of the control rod is connected with a pressing plate located on the bottom surface of the pressure-sensitive diaphragm, and the other end extends downward through the valve body to the inlet chamber. The two ends of the return spring act on the bottom surface of the pressing plate and the inner wall of the atmosphere chamber respectively. A first sealing ring is sleeved on the control rod. The periphery of the first sealing ring is tightly pressed between the bracket and the valve body. A flow channel communicating with the water outlet is provided on the bracket. The bracket is sleeved on the control rod. An inlet chamber is formed between the lower end of the bracket and the valve seat. Limiting grooves and limiting convex rings for controlling the flow rate between the inlet chamber and the water outlet are respectively provided on the inner sides of the control rod and the bracket.

[0010] The flow control valve of the above solution is provided with a flow control component on the water path communicating between the water inlet and the water outlet. When the flow control pump is not working, the water pressure inside the water pressure chamber is greater than the pressure inside the atmospheric chamber, causing the pressure to act downward on the pressure sensing diaphragm, acting on the pressure plate through the pressure sensing diaphragm. The pressure plate compresses the return spring downward, and at the same time drives the control rod to move downward continuously. The bottom end of the control rod closes the water path between the water inlet chamber and the return port. When the flow control pump is working, due to the suction of the flow control pump, the water in the water pressure chamber is output to the heating unit. At this time, the water in the water pressure chamber is pumped out, and its internal pressure is not sufficient to overcome the spring reaction force of the return spring. The control rod moves upward, and at the same time releases the closure of the water path between the water inlet chamber and the return port. The excess water flows back to the reverse osmosis membrane module through the return port, and the whole machine system operates normally. When the flow control pump stops running, since the limit convex ring and the flow limiting groove only intercept the water volume rather than cut off the flow, water continuously enters the water pressure chamber again, and the water pressure causes the control rod to move downward again until the return port is blocked. Then, the water pressure is conducted to the high-pressure switch through the pipeline, causing the high-pressure switch to disconnect, realizing system shutdown. Repeating like this, the cooperation of the flow control pump and the flow control valve can better control the water volume entering the heating unit, ensure the water heating effect of the inlet water, and at the same time the excess water flow can return to the reverse osmosis membrane module to continue filtering, enabling the whole machine system to operate normally.

[0011] Preferably, a return hole communicating the water inlet chamber and the return port is provided on the valve seat, and the return hole is directly below the lower end of the control rod.

[0012] Preferably, a sealing plug is provided at the bottom end of the control rod. The sealing plug enables the control rod to block the return hole.

[0013] Preferably, a water inlet hole communicating the water inlet and the water inlet chamber is provided on the valve seat, and a one-way valve flap is provided at the water inlet hole. The one-way valve flap is pressed between the bottom end of the bracket and the valve seat.

[0014] Preferably, a water flow passage communicating the water outlet and the water pressure chamber is provided on the valve body.

[0015] Preferably, a fixed collar for sleeving the valve body is provided on the valve seat, and a second sealing ring is sleeved on the fixed collar. The second sealing ring ensures the sealing between the valve seat and the valve body and is not prone to water leakage.

[0016] The beneficial effects of the present invention are:

[0017] 1. Through the cooperation of the flow control pump and the flow control valve, this solution can better control the water volume entering the heating unit, ensure the water heating effect of the inlet water, and there will always be water volume in the water pressure chamber. In this way, the flow control valve can effectively ensure that the flow control pump has priority in using water, and at the same time the excess water flow can return to the reverse osmosis membrane module to continue filtering, ensuring the normal operation of the whole machine system. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic structural diagram of the present invention;

[0019] Figure 2 It is a cross-sectional view of a flow control valve.

[0020] Reference numerals: 1 - water inlet, 2 - second sealing ring, 3 - bracket, 4 - valve body, 5 - air hole, 6 - air chamber, 7 - pressure-sensitive diaphragm, 8 - valve cover, 9 - return spring, 10 - water flow passage, 11 - control rod, 12 - first sealing ring, 13 - water outlet, 14 - flow-limiting groove, 15 - flow-limiting convex ring, 16 - return port, 17 - fixed collar, 18 - sealing plug, 19 - return hole, 20 - water inlet hole, 21 - check valve flap, 22 - pressure reducing valve, 23 - solenoid valve, 24 - booster pump, 25 - second one-way joint, 26 - flow control pump, 27 - heating unit, 28 - hot water faucet, 29 - flow control valve, 30 - first one-way joint, 31 - cold water faucet, 32 - high-pressure switch, 33 - reverse osmosis membrane module, 34 - flushing solenoid valve, 35 - pretreatment filter element, 36 - valve seat, 37 - water pressure chamber, 38 - water inlet chamber, 39 - pressing plate. Specific embodiments

[0021] The present invention will be further described in detail below in conjunction with the embodiments and the accompanying drawings, but the embodiments of the present invention are not limited thereto.

[0022] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "longitudinal", "lateral", "horizontal", "inner", "outer", "front", "rear", "top", "bottom", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the invention is usually placed during use. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0023] In the description of the present invention, it should also be noted that unless otherwise clearly specified and limited, the terms "set", "provided with", "installed", "connected", "connected to" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] Embodiment 1

[0025] As Figure 1As shown in the figure, a pure water purifier system with heating function includes a heating unit 27, a flow control pump 26, a reverse osmosis membrane module 33, and a pretreatment filter element 35. The water outlet end of the heating unit 27 is connected to a hot water faucet 28, and its water inlet end is connected to a first one-way joint 30. The first one-way joint 30 is connected to a high-pressure switch 32. A cold water faucet 31 is provided between the high-pressure switch 32 and the first one-way joint 30. The inlet end of the pretreatment filter element 35 is connected to a pressure reducing valve 22. The outlet end of the pretreatment filter element 35 is respectively communicated with a second one-way joint 25 and the reverse osmosis membrane module 33. A booster pump 24 and a solenoid valve 23 are provided on the connecting water path between the reverse osmosis membrane module 33 and the pretreatment filter element 35. The concentrated water outlet of the reverse osmosis membrane module 33 is connected to a flushing solenoid valve 34, and the purified water outlet is connected to the high-pressure switch 32. A flow control pump 26 and a flow control valve 29 are provided on the water path at the water inlet end of the heating unit 27. The flow control valve 29 is provided with a water inlet 1, a water outlet 13, and a return port 16. The water outlet 13 is connected to the flow control pump 26, the water inlet 1 is connected to the first one-way joint 30, and the return port 16 is connected to the second one-way joint 25.

[0026] In this embodiment, a flow control pump 26 and a flow control valve 29 are arranged at the water inlet end of the heating unit, and a return port 16 is arranged on the flow control valve 29. Through the combination of the flow control pump 26 and the flow control valve 29, the water flow rate entering the heating unit 27 is doubly controlled, so that the heating power of the heating unit 27 can effectively match the corresponding water flow rate, ensuring the heating effect. At the same time, the excess water returns to the reverse osmosis membrane module 33 through the return port 16 and the second one-way joint 25 for re-filtration, which can effectively ensure the normal operation of the whole machine system.

[0027] Embodiment 2

[0028] As Figure 2 shown, the flow control valve 29 includes a valve seat 36 and a valve body 4 hermetically sleeved on the valve seat 36. The water inlet 1 and the return port 16 are arranged on the valve seat 36, and the water outlet 13 is arranged on the valve body 4. An inlet cavity 38 communicating with the water inlet 1 and the return port 16 is arranged inside the lower part of the valve body 4. An atmosphere cavity 6 is arranged inside the upper part of the valve body 4. The atmosphere cavity 6 is communicated with the atmosphere through an atmosphere hole 5 on the side surface of the valve body 4. A sealed pressure water cavity 37 is arranged in a partitioned manner above the atmosphere cavity 6. The pressure water cavity 37 is communicated with the water outlet 13. A flow control component is arranged on the water path between the water inlet 1 and the water outlet 13.

[0029] The flow control component includes a pressure-sensitive diaphragm 7, a return spring 9, and a control rod 11. The periphery of the pressure-sensitive diaphragm 7 is tightly sealed between the valve cover 8 and the valve body 4. A water pressure chamber 37 communicating with the water outlet 1 is formed between the valve cover 8 and the pressure-sensitive diaphragm 7. An atmosphere chamber 6 is formed between the pressure-sensitive diaphragm 7 and the inner wall of the valve body 4. One end of the control rod 11 is connected with a pressing plate 39 located at the bottom surface of the pressure-sensitive diaphragm 7, and the other end extends downward through the valve body 4 to the water inlet chamber 38. The two ends of the return spring 9 act on the bottom surface of the pressing plate 39 and the inner wall of the atmosphere chamber 6 respectively. A first sealing ring 12 is sleeved on the control rod 11, and the periphery of the first sealing ring 12 is tightly pressed between the bracket 3 and the valve body 4. A flow channel communicating with the water outlet 1 is provided on the bracket 3. The bracket 3 is sleeved on the control rod 11. An inlet chamber 38 is formed between the lower end of the bracket 3 and the valve seat 36. Flow limiting grooves 14 and flow limiting convex rings 15 for controlling the flow rate between the water inlet chamber 38 and the water outlet 13 are respectively provided inside the control rod 11 and the bracket 3.

[0030] The specific working principle of the flow control component in this embodiment is as follows:

[0031] A flow control component is arranged on the water path communicating between the water inlet 1 and the water outlet 13 of the flow control valve 29. When the flow control pump 26 is not working, the purified water enters the interior of the water inlet chamber 38 from the water inlet 1, and then enters the water outlet 13 after the flow rate is controlled by the flow control component. Since the flow control pump 26 is not working and the water outlet 13 is not conducted, the entering purified water enters the water pressure chamber 37 through the overflow channel 10. As the amount of water in the water pressure chamber 37 continuously increases, the internal water pressure is greater than the pressure in the atmosphere chamber 6, so that the pressure acts downward on the pressure-sensitive diaphragm 7, acts on the pressing plate 39 through the pressure-sensitive diaphragm 7, the pressing plate 39 compresses the return spring 9 downward, and at the same time drives the control rod 11 to continuously move downward until the bottom end of the control rod 11 closes the water path between the water inlet chamber 38 and the return port 16; when the flow control pump 26 is working, due to the suction of the flow control pump 26, the water in the water pressure chamber 37 is pumped into the heating unit 27. At this time, after the water in the water pressure chamber 37 is emptied, its internal pressure is not enough to overcome the spring reaction force of the return spring 9, the return spring 9 acts upward on the pressing plate 39, so that the control rod 11 moves upward, and at the same time releases the closure of the water path between the water inlet chamber 38 and the return port 16. At this time, the water flows back to the reverse osmosis membrane group 33 through the return port 16, and the whole machine system operates normally. Repeating like this, the cooperation of the flow control pump 26 and the flow control valve 29 can better control the amount of water entering the heating unit 27, ensure the water heating effect of the water inlet, and at the same time the excess water can return to the reverse osmosis membrane group 33 to continue filtering, ensuring the normal operation of the whole machine system.

[0032] Embodiment 3

[0033] As a further refinement of any of the above embodiments, specifically, a return hole 19 communicating the water inlet chamber 38 with the return port 16 is provided on the valve seat 36, and the return hole 19 is directly below the lower end of the control rod 11.

[0034] A plug 18 is provided at the bottom end of the control rod 11. The plug 18 enables the control rod 11 to block the reflux hole 19.

[0035] An inlet hole 20 for conducting the water inlet 1 and the water inlet cavity 38 is provided on the valve seat 36. A check valve flap is provided at the inlet hole 20, and the check valve flap is pressed between the bottom end of the bracket 3 and the valve seat 36.

[0036] A fixed collar 17 for sleeving the valve body 4 is provided on the valve seat 36. A second sealing ring 2 is sleeved on the fixed collar 17. The second sealing ring 2 ensures the sealing performance of the connection between the valve seat 36 and the valve body 4, and it is not easy to leak water.

[0037] The above are only the preferred embodiments of the present invention, and do not impose any form of limitation on the present invention. Based on the technical essence of the present invention, any simple modifications, equivalent replacements, and improvements made to the above embodiments within the spirit and principles of the present invention still fall within the protection scope of the technical solution of the present invention.

Claims

1. A pure water purifier and heater system, comprising a heating unit (27), a flow control pump (26), a reverse osmosis membrane module (33), and a pretreatment filter element (35). The outlet end of the heating unit (27) is connected to a hot water faucet (28), and its inlet end is connected to a first one-way joint (30). The first one-way joint (30) is connected to a high-pressure switch (32). A cold water faucet (31) is provided between the high-pressure switch (32) and the first one-way joint (30). The inlet end of the pretreatment filter element (35) is connected to a pressure reducing valve (22). The outlet end of the pretreatment filter element (35) is respectively communicated with a second one-way joint (25) and the reverse osmosis membrane module (33). A booster pump (24) and a solenoid valve (23) are provided on the connecting water path between the reverse osmosis membrane module (33) and the pretreatment filter element (35). The concentrated water outlet of the reverse osmosis membrane module (33) is connected to a flushing solenoid valve (34), and the purified water outlet is connected to the high-pressure switch (32). It is characterized in that, A flow control pump (26) and a flow control valve (29) are provided on the water path at the water inlet end of the heating unit (27). The flow control valve (29) is provided with a water inlet (1), a water outlet (13) and a return port (16). The water outlet (13) is connected to the flow control pump (26), the water inlet (1) is connected to the first one-way joint (30), and the return port (16) is connected to the second one-way joint (25). The flow control valve (29) includes a valve seat (36) and a valve body (4) hermetically sleeved on the valve seat (36). The water inlet (1) and the return port (16) are provided on the valve seat (36), and the water outlet (13) is provided on the valve body (4). An inlet chamber (38) communicating with the water inlet (1) and the return port (16) is provided inside the lower part of the valve body (4). An atmosphere chamber (6) is provided inside the upper part of the valve body (4). The atmosphere chamber (6) communicates with the atmosphere through an atmosphere hole (5) on the side of the valve body (4). A sealed pressure water chamber (37) is provided in a partitioned manner above the atmosphere chamber (6). The pressure water chamber (37) communicates with the water outlet (13). A flow control component is provided on the water path between the water inlet (1) and the water outlet (13). The flow control component includes a pressure sensing diaphragm (7), a return spring (9), and a control rod (11). The periphery of the pressure sensing diaphragm (7) is tightly sealed between the valve cover (8) and the valve body (4). A pressure water chamber (37) communicating with the water outlet (13) is formed between the valve cover (8) and the pressure sensing diaphragm (7). An atmosphere chamber (6) is formed between the pressure sensing diaphragm (7) and the inner wall of the valve body (4). One end of the control rod (11) is connected with a pressing plate (39) located on the bottom surface of the pressure sensing diaphragm (7), and the other end extends downward through the valve body (4) to the inlet chamber (38). The two ends of the return spring (9) act on the bottom surface of the pressing plate (39) and the inner wall of the atmosphere chamber (6) respectively. A first sealing ring (12) is sleeved on the control rod (11). The periphery of the first sealing ring (12) is tightly pressed between the bracket (3) and the valve body (4). A flow channel communicating with the water outlet (13) is provided on the bracket (3). The bracket (3) is sleeved on the control rod (11). An inlet chamber (38) is formed between the lower end of the bracket (3) and the valve seat (36). Limiting grooves (14) and limiting convex rings (15) for controlling the flow rate between the inlet chamber (38) and the water outlet (13) are respectively provided on the inner sides of the control rod (11) and the bracket (3). A return hole (19) for communicating the inlet chamber (38) with the return port (16) is provided on the valve seat (36), and the return hole (19) is located directly below the lower end of the control rod (11).

2. The net heat pure water machine system according to claim 1, characterized in that, A plug (18) is provided at the bottom end of the control rod (11).

3. The pure water machine system with purification and heating functions according to claim 1, characterized in that A water inlet hole (20) for communicating the water inlet (1) with the inlet chamber (38) is provided on the valve seat (36). A one-way valve flap (21) is provided at the water inlet hole (20). The one-way valve flap (21) is tightly pressed between the bottom end of the bracket (3) and the valve seat (36).

4. A pure heat and pure water machine system according to claim 1, characterized in that, A water flow channel (10) for communicating the water outlet (13) with the pressure water chamber (37) is provided on the valve body (4).

5. The pure water machine system for purification and heating according to claim 1, wherein A fixed collar (17) for sleeving the valve body (4) is provided on the valve seat (36), and a second sealing ring (2) is sleeved on the fixed collar (17).

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