Dual regeneration mode control valve

Abstract

The invention discloses a double-regeneration-mode control valve which comprises a driving assembly used for driving a valve element assembly to reciprocate in a valve body assembly. The grid assembly is fixed in the valve body assembly and consists of a plurality of grids, and the grids respectively correspond to different water ports of the water purification equipment; the valve element assembly comprises a flow valve element and a salt valve element, one end of the flow valve element is connected with the driving assembly, and the other end is connected with the salt valve element; the valve element assembly stops at different positions of the grating assembly, and a valve element conducts the corresponding water openings and blocks the other water openings to form different water paths at the same time; the salt valve core comprises a downstream salt valve core and a countercurrent salt valve core which can be mounted in a replaceable manner; when downstream regeneration is executed, a downstream salt valve element is installed, a plug is used for blocking a countercurrent regeneration water inlet, and the downstream salt valve element stops moving to conduct a downstream regeneration water path; when countercurrent regeneration is executed, the countercurrent salt valve element is installed, the downstream regeneration water inlet is plugged through the plug, and the countercurrent salt valve element stops moving to conduct the countercurrent regeneration water path.

Description

Technical Field

[0001] The present invention relates to the field of water treatment, and in particular to a dual regeneration mode control valve. Background Art

[0002] The water softener control valve is the core component of the water softener. Through the movement of the valve core assembly, it changes the direction of water flow within the valve body, achieving functions such as contact between raw water and resin, output of softened water, resin regeneration, and wastewater discharge. Based on user-set parameters such as raw water hardness and regeneration time, it automatically initiates the regeneration process, completing backwashing, salt absorption, forward washing, and water replenishment steps in sequence to restore the resin's softening function.

[0003] The water softener control valve mainly includes:

[0004] Valve body: It is the main part of the control valve, usually made of materials such as engineering plastics or lead-free brass. It has multiple water channels inside to guide the flow and distribution of water.

[0005] Piston or valve core assembly: It is movable inside and switches different water paths by changing its position to achieve various working states of the water softener, such as operation, backwashing, salt absorption, forward washing, water replenishment, etc.

[0006] Drive device: Generally a small motor that drives the camshaft or piston to move, thereby realizing the switching action of the valve core assembly, so that the water softener can automatically regenerate according to the preset program.

[0007] Control electronics: including single chip microcomputer, PLC and other controllers, which are used to control the action of the drive device according to the parameters and programs set by the user, so as to realize the automatic control of the water softener.

[0008] Salt valve: installed on the control valve and connected to the salt tank. During the salt absorption and regeneration stage, after the brine is absorbed, the float in the salt valve drops freely to block the salt absorption inlet, preventing air from being sucked into the resin tank, thus playing the role of air absorption prevention. During the water replenishment stage, the float level control function outside the salt valve is used to adjust the height of the float to control the maximum water replenishment of the dissolved salt and control the salt consumption.

[0009] The downstream regeneration process includes:

[0010] Backwash: After the resin fails, backwash the resin from bottom to top with backwash water to remove impurities such as suspended matter and broken resin trapped in the resin layer, while destroying the resin compaction and loosening the resin so that the regenerated salt solution can be evenly distributed.

[0011] Regeneration: After backwashing is completed, the regeneration liquid (such as brine) enters from the top of the exchanger and reacts with the calcium, magnesium and other ions in the resin layer to restore the exchange capacity of the resin.

[0012] Positive wash: After regeneration is completed, positive wash is required.

[0013] The countercurrent regeneration process includes:

[0014] Small backwash: Before regeneration, backwash water enters the bottom of the exchanger and flows upward through the resin layer to loosen and clean the resin layer. This can remove some suspended impurities, prevent the resin layer from being blocked, and create good conditions for subsequent regeneration.

[0015] Regeneration Fluid Inlet: After a minor backwash, regeneration fluid enters the exchanger from the bottom and flows upward through the resin layer, fully contacting the resin and regenerating it. Because the regeneration fluid enters the lower resin layer first, this portion of the resin can fully react with the higher concentration of regeneration fluid, achieving a high degree of regeneration. As the regeneration fluid flows upward, its concentration gradually decreases, but the regeneration fluid concentration in contact with the upper resin layer remains relatively high, resulting in a better regeneration effect.

[0016] Replacement cleaning: After the regeneration liquid has entered, softened water continues to be introduced, entering from the bottom of the exchanger at a certain flow rate, flowing upward through the resin layer, and further replacing the residual regeneration liquid in the resin and the impurities generated by the reaction.

[0017] Small positive wash: After the displacement cleaning is completed, close the water inlet valve and regeneration liquid valve, open the drain valve at the bottom of the exchanger, and perform a small positive wash. Softened water enters from the top of the exchanger and flows downward through the resin layer, further cleaning the remaining impurities in the resin layer until the water is clear.

[0018] A large backwash (optional): A large amount of backwash water enters the bottom of the exchanger and flows upward through the resin layer, strongly impacting and agitating the resin layer, loosening and rubbing the resin particles, and removing impurities and dirt deep within the resin layer. A large backwash lasts longer and has a higher flow rate, effectively restoring the resin layer to a clean state. However, it may cause the resin layer to become disordered, requiring readjustment of the resin layer structure.

[0019] Large positive wash: After the large backwash, a large positive wash is required.

[0020] The existing water softener control valve has the following defects:

[0021] 1. In order to realize the conversion between downstream regeneration and reverse regeneration, the existing water softener control valve needs to change the internal structure of the valve body or change the position of the siphon.

[0022] 2. The existing water softener control valve uses monitoring current or Hall magnetic induction to determine the reference point.

[0023] 3. Existing water softener control valves generally use bypass valves to bypass hard water, which cannot accurately adjust the hardness of the water at the outlet.

[0024] 4. The pistons used in existing water softener control valves are mostly made of metal coated with Teflon coating. The Teflon coating does not comply with the new PFAS standards issued by Europe and the United States.

[0025] 5. Existing water softener control valves mostly use flow meters with suitable cost and accuracy. Summary of the Invention

[0026] The Summary of the Invention introduces a series of simplified concepts, which are simplifications of existing technologies in the field and are further described in detail in the Detailed Description of the Invention. The Summary of the Invention is not intended to define the key features and essential features of the claimed technical solution, nor is it intended to determine the scope of protection of the claimed technical solution.

[0027] The technical problem to be solved by the present invention is to provide a dual regeneration mode control valve which can realize the conversion between downstream control and reverse flow control without changing the positions of the main valve body and the siphon.

[0028] In order to solve the above technical problems, the present invention provides a dual regeneration mode control valve, comprising:

[0029] A drive assembly, which is used to drive the valve core assembly to reciprocate in the valve body assembly;

[0030] The grid assembly 12 is fixed in the valve body assembly and is composed of a plurality of grids, each grid corresponding to a different water outlet of the water purification equipment;

[0031] The valve core assembly includes a flow valve core 8 and a salt valve core, wherein one end of the flow valve core 8 is connected to the drive assembly and the other end is connected to the salt valve core;

[0032] The valve core assembly stops at different positions of the grille assembly 12, and the valve core 8 opens the corresponding water outlet while blocking the other water outlets to form different water paths;

[0033] Salt valve core, including replaceable downstream salt valve core 9 and upstream salt valve core 10;

[0034] When performing downstream regeneration, install the downstream salt valve core 9, use a plug to block the upstream regeneration water inlet, and the downstream salt valve core 9 stops moving to conduct the downstream regeneration water path;

[0035] When performing countercurrent regeneration, the countercurrent salt valve core 10 is installed, and the downstream regeneration water inlet is blocked with a plug. The countercurrent salt valve core 10 stops moving to conduct the countercurrent regeneration water path.

[0036] Preferably, the dual regeneration mode control valve further described, the water mixing component 13, is formed on the raw water channel, which controls the amount of mixed water by changing the water flow area of the raw water channel, for example, by inserting a water mixing plug into the raw water channel.

[0037] Preferably, the dual regeneration mode control valve further comprises a drive assembly comprising:

[0038] The output end of the motor 1 is engaged with the upper end of the transmission assembly 5 passing through the motor fixing frame 4, and its forward and reverse rotation drives the pull rod of the transmission assembly 5 to move up and down;

[0039] A first infrared sensor 2 is fixed on the motor mounting bracket 4 and is used to record the gear rotation angle and output a signal to the PCB 8;

[0040] The second infrared sensor 3 is fixed on the motor fixing bracket 4 and is used to locate the initial position of the pull rod and output a signal to the PCB 8. The first infrared sensor 2 and the second infrared sensor 3 can be selected to be a reflection type or a beam type;

[0041] A motor fixing bracket 4, which is fixed on the controller bracket 9;

[0042] Transmission assembly 5, which is fixed on the controller bracket 9;

[0043] PCB 8 is fixed on the controller bracket 9.

[0044] Preferably, the dual regeneration mode control valve further comprises:

[0045] The large gear 51 has teeth 511 formed on its lower outer periphery and an upwardly directed hollow cylindrical extension 512 formed in its axial center. The cylindrical extension 512 has an internal thread and a plug hole 515 formed on the side wall of the cylindrical extension 512.

[0046] The ball plug 52 blocks the plug hole 515 to prevent the ball 53 from falling out;

[0047] A plurality of first light-transmitting grooves 514 are evenly distributed between the large gear 51 and the hollow cylindrical extension 512;

[0048] A first spherical groove 513 is formed in the hollow cylindrical extension 512;

[0049] The gear fixing shaft 54 is formed into a hollow structure, and its upper portion is inserted into the hollow cylindrical extension portion 512;

[0050] A limiting boss 541 is formed on the inner side wall of the upper portion of the central through hole 542 of the gear fixing shaft 54;

[0051] A second ball groove 543 is formed on the upper portion of the outer wall of the gear fixing shaft 54 and corresponds to the position of the first ball groove 513;

[0052] an anti-rotation boss 544 formed on the lower portion of the outer side wall of the gear fixing shaft 54;

[0053] a pin hole 545 formed at the lower portion of the outer side wall of the gear fixing shaft 54;

[0054] The ball 53 connects the gear fixing shaft 54 and the large gear 51 together, so that the large gear can rotate but cannot move axially;

[0055] The pull rod has an upper portion inserted into the through hole 542 and a thread 553 formed on the upper side wall thereof, which is screwed into the internal thread of the cylindrical extension 512;

[0056] A limiting groove 551 is formed on the upper side wall of the pull rod and is clamped in the limiting boss 541;

[0057] The second light-transmitting groove 552 is formed on the upper side wall of the pull rod.

[0058] Preferably, in the dual regeneration mode control valve further described, the valve core assembly is manufactured by molding PEEK (polyetheretherketone).

[0059] Preferably, in the dual regeneration mode control valve further described, the flow valve core 8 is formed into a variable-section cylinder with large diameters at both ends and a small diameter in the middle, and its small-diameter section can be aligned with different water outlets on the valve body through axial displacement to form different water flow paths, while its first large-diameter section and the second large-diameter section can block the remaining paths on the valve body.

[0060] Preferably, in the dual regeneration mode control valve further described, the downstream salt valve core 9 is formed as a variable cross-section cylinder with large diameters at both ends and a small diameter in the middle.

[0061] Preferably, in the dual regeneration mode control valve further described, the countercurrent salt valve core 10 is formed as a variable cross-section cylinder with large diameters at both ends and a small diameter in the middle, which has two small diameter sections and a large diameter section between the two small diameter sections.

[0062] Preferably, the dual regeneration mode control valve further comprises: a flow meter installed on the flow meter installation portion of the valve body;

[0063] Flow meter, including:

[0064] The main body 16.1 is formed into a shape that is compatible with the valve body flow meter mounting portion 16.2 and can be inserted and fixed to the valve body flow meter mounting portion 16.2;

[0065] An impeller mounting portion 16.3 is formed on the top of the main body 16.1 and is used to mount an impeller assembly 16.4;

[0066] An annular magnet 16.5 is mounted in a first recess 16.6 at one end of the impeller assembly 16.4 and inserted into the impeller mounting portion 16.3, without contacting the impeller mounting portion 16.3;

[0067] The Hall element 16.7 is mounted in the Hall element mounting portion 16.8 of the main body 16.1.

[0068] The present invention can achieve at least the following technical effects:

[0069] 1) The existing technology requires changing the position of the siphon to achieve the conversion between downstream and upstream salt absorption. The present invention designs a plug to block the upstream regeneration water inlet or the downstream regeneration water inlet to form different water paths for upstream regeneration or downstream regeneration respectively.

[0070] 2) The existing technology uses electromagnetic combination to achieve reference point positioning of the control valve. The present invention uses a high-precision infrared sensor for positioning, achieving high-precision initial position positioning and reducing operational confusion caused by inaccurate zero position positioning.

[0071] 3) The prior art controls the hardness of the water outlet by means of an external bypass valve, while the present invention uses a quick-release water mixing assembly to adjust the hardness of the water at the outlet with higher precision.

[0072] 4) The valve core assembly is made of PEEK to enhance piston performance and reduce costs.

[0073] 5) The existing technology sacrifices the accuracy of the flow meter or uses other types of flow meters with higher costs. The present invention uses a high-precision flow meter with magnetic material installed on the impeller to make the impeller rotate more smoothly and improve the accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0074] The drawings herein are intended to illustrate the general characteristics of methods, structures, and / or materials used in certain exemplary embodiments of the present invention, supplementing the descriptions in the specification. However, the drawings herein are schematic diagrams not drawn to scale and may not accurately reflect the precise structure or performance characteristics of any given embodiment. The drawings herein should not be interpreted as defining or limiting the range of values or properties encompassed by the exemplary embodiments of the present invention. The present invention is further described in detail below in conjunction with the drawings and specific embodiments:

[0075] Figure 1 It is a schematic diagram of the overall structure decomposition of the present invention.

[0076] Figure 2 It is a schematic diagram of the installation of the plug of the present invention.

[0077] Figure 3 This is a schematic diagram of a preferred embodiment of the transmission component of the present invention Figure 1 .

[0078] Figure 4 This is a schematic diagram of a preferred embodiment of the transmission component of the present invention Figure 2 .

[0079] Figure 5 This is a schematic diagram of a preferred embodiment of the transmission component of the present invention Figure 3 .

[0080] Figure 6 This is a schematic diagram of a preferred embodiment of the transmission component of the present invention Figure 4 .

[0081] Figure 7 This is a schematic diagram of a preferred embodiment of the transmission component of the present invention Figure 5 .

[0082] Figure 8 It is an exploded schematic diagram of a preferred embodiment of a downstream salt valve core of the present invention.

[0083] Figure 9 It is a schematic diagram of an exploded view of a preferred embodiment of a countercurrent salt valve core of the present invention.

[0084] Figure 10 This is the preferred embodiment of the flow meter of the present invention. Figure 1 .

[0085] Figure 11 This is the preferred embodiment of the flow meter of the present invention. Figure 2 .

[0086] Figure 12 It is a schematic diagram of the exploded view of the flow meter impeller assembly of the present invention.

[0087] Figures 13 to 17 It is a schematic diagram of various working conditions of the downstream salt valve core of the present invention.

[0088] Figures 18 to 22 It is a schematic diagram of various working conditions of the countercurrent salt valve core of the present invention.

[0089] Description of reference numerals:

[0090] 1- Motor;

[0091] 2-First infrared sensor;

[0092] 3- Second infrared sensor;

[0093] 4-Motor fixing bracket;

[0094] 5- Transmission assembly;

[0095] 51-large gear;

[0096] 511-teeth;

[0097] 512-Hollow cylindrical extension;

[0098] 513-first ball groove;

[0099] 514-first light-transmitting groove;

[0100] 515-plug hole;

[0101] 52-ball plug;

[0102] 53-ball;

[0103] 54-gear fixing shaft;

[0104] 541-limiting boss;

[0105] 542-through hole;

[0106] 543-second ball slot;

[0107] 544-anti-rotation boss;

[0108] 545-pin hole;

[0109] 55-pull rod;

[0110] 551-limiting slot;

[0111] 552-second light-transmitting slot;

[0112] 553-thread;

[0113] 6-PCB;

[0114] 7-Stainless steel latch;

[0115] 8-flow valve core;

[0116] 9- downstream salt valve core;

[0117] 10-counterflow salt valve core;

[0118] 11-Salt valve core traction ring;

[0119] 12-Grille assembly;

[0120] 13-water mixing component;

[0121] 14- sewage outlet connector;

[0122] 15-water mixing assembly latch;

[0123] 16-Flow meter;

[0124] 17-sewage outlet joint pin;

[0125] 18-Flow meter connector pin;

[0126] 19-Ejector;

[0127] 20-Brine suction port connector;

[0128] 21-main valve body;

[0129] 22-plug;

[0130] 23-welding-free plugging cover;

[0131] 24-Brine inlet connector pin. DETAILED DESCRIPTION

[0132] The following describes the embodiments of the present invention through specific embodiments. Those skilled in the art will fully understand the other advantages and technical effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through different specific embodiments, and the details in this specification can be applied based on different perspectives and various modifications or changes can be made without departing from the overall design concept of the invention. It should be noted that the following embodiments and features therein can be combined with each other unless there is a conflict. The following exemplary embodiments of the present invention can be implemented in a variety of different forms and should not be construed as being limited to the specific embodiments described herein. It should be understood that these embodiments are provided to make the disclosure of the present invention thorough and complete and to fully convey the technical solutions of these exemplary embodiments to those skilled in the art. It should be understood that when an element is referred to as being "connected" or "coupled" to another element, the element can be directly connected or coupled to the other element, or intervening elements can be present. In contrast, when an element is referred to as being "directly connected" or "directly coupled" to another element, there are no intervening elements. Throughout the drawings, the same reference numerals represent the same element. As used herein, the term "and / or" includes any and all combinations of one or more of the relevant listed items.

[0133] First of all, it should be noted that Figure 1 The arrangement of the various fittings and fixings (e.g., latches, bolts, etc.) within the valve body, as well as the various outlets within the valve body, is not the focus of the present invention. The fittings and fixings can be implemented using existing structures. The position of the outlets within the valve body can be determined based on the actual shape of the valve body. As long as the different relative positions of the grille assembly and the valve core assembly can coordinate with the outlets to form the desired flow paths / waterways, the present invention can be implemented.

[0134] First embodiment;

[0135] The present invention provides a dual regeneration mode control valve, comprising:

[0136] A drive assembly, which is used to drive the valve core assembly to reciprocate in the valve body assembly;

[0137] The grid assembly 12 is fixed in the valve body assembly and is composed of a plurality of grids, each grid corresponding to a different water outlet of the water purification equipment;

[0138] The valve core assembly includes a flow valve core 8 and a salt valve core, wherein one end of the flow valve core 8 is connected to the drive assembly and the other end is connected to the salt valve core;

[0139] The valve core assembly stops at different positions of the grille assembly 12, and the valve core 8 opens the corresponding water outlet while blocking the other water outlets to form different water paths;

[0140] Salt valve core, including replaceable downstream salt valve core 9 and upstream salt valve core 10;

[0141] refer to Figure 2 As shown, when performing downstream regeneration, the downstream salt valve core 9 is installed, and the reverse regeneration water inlet is blocked with a plug 22, and the downstream salt valve core 9 stops moving to conduct the downstream regeneration water path;

[0142] See Figures 13 to 17 As shown, various working conditions of the present invention when using the downstream salt valve core 9.

[0143] When performing countercurrent regeneration, the countercurrent salt valve core 10 is installed, and the plug 22 is used to block the downstream regeneration water inlet. The countercurrent salt valve core 10 stops moving to conduct the countercurrent regeneration water path.

[0144] See Figures 18 to 22 As shown, various working conditions of the present invention when using the countercurrent salt valve core 10.

[0145] Preferably, the valve core assembly is manufactured by molding PEEK.

[0146] Second embodiment;

[0147] refer to Figure 1 As shown, the dual regeneration mode control valve of the first embodiment is further improved, further comprising:

[0148] The water mixing component 13 is formed on the raw water channel and controls the amount of mixed water by changing the water flow area of the raw water channel.

[0149] Third embodiment;

[0150] refer to Figure 1 As shown, the present invention provides a drive assembly that can be used for the dual regeneration mode control valve of the first embodiment, comprising:

[0151] The output end of the motor 1 is engaged with the upper end of the transmission assembly 5 passing through the motor fixing frame 4, and its forward and reverse rotation drives the pull rod of the transmission assembly 5 to move up and down;

[0152] A first infrared sensor 2 is fixed on the motor fixing bracket 4 and is used to record the gear rotation angle and output a signal to the PCB 6;

[0153] The second infrared sensor 3 is fixed on the motor fixing bracket 4 and is used to locate the initial position of the pull rod and output a signal to the PCB 6; the first infrared sensor 2 and the second infrared sensor 3 form a beam opposition;

[0154] A motor fixing bracket 4, which is fixed on the controller bracket 7;

[0155] Transmission assembly 5, which is fixed on the controller bracket 7;

[0156] PCB6 is fixed on the controller bracket 7.

[0157] Exemplary, reference Figures 3 to 7 As shown, the transmission assembly 5 includes:

[0158] The large gear 51 has teeth 511 formed on its lower outer periphery and an upwardly directed hollow cylindrical extension 512 formed in its axial center. The cylindrical extension 512 has an internal thread and a plug hole 515 formed on the side wall of the cylindrical extension 512.

[0159] The ball plug 52 blocks the plug hole 515 to prevent the ball 53 from falling out;

[0160] A plurality of first light-transmitting grooves 514 are evenly distributed between the large gear 51 and the hollow cylindrical extension 512;

[0161] A first spherical groove 513 is formed in the hollow cylindrical extension 512;

[0162] The gear fixing shaft 54 is formed into a hollow structure, and its upper portion is inserted into the hollow cylindrical extension portion 512;

[0163] A limiting boss 541 is formed on the inner side wall of the upper portion of the central through hole 542 of the gear fixing shaft 54;

[0164] A second ball groove 543 is formed on the upper portion of the outer wall of the gear fixing shaft 54 and corresponds to the position of the first ball groove 513;

[0165] an anti-rotation boss 544 formed on the lower portion of the outer side wall of the gear fixing shaft 54;

[0166] a pin hole 545 formed at the lower portion of the outer side wall of the gear fixing shaft 54;

[0167] The ball 53 connects the gear fixing shaft 54 and the large gear 51 together, so that the large gear can rotate but cannot move axially;

[0168] The pull rod 55 has an upper portion inserted into the through hole 542 and a thread 553 formed on the upper side wall thereof, which is screwed into the internal thread of the cylindrical extension 512;

[0169] A limiting groove 551 is formed on the upper side wall of the pull rod 55 and is clamped in the limiting boss 541;

[0170] The second light-transmitting groove 552 is formed on the upper side wall of the pull rod 55 .

[0171] During operation, the motor drives the large gear to rotate, moving the lever up and down, thereby changing the controller's position. Each rotation of the large gear causes the lever to move up or down by one tooth pitch. The reflective infrared sensor emits infrared light. When this light passes through the first light-transmitting slot of the large gear, hits the reflective sheet on the opposite side, and then reaches the reflective infrared sensor, it emits a signal. This signal is transmitted to the control PCB, which registers a pulse and converts the number of pulses into the distance the lever has moved up or down. When the lever moves upward, the infrared light from the opposing infrared sensor passes through the second light-transmitting slot of the lever, generating a signal. The control PCB receives this signal and instructs the lever to return to its initial position. The position of the controller lever is based on this initial position. The initial position is precisely controlled by the accuracy of the external light.

[0172] Fourth embodiment;

[0173] The present invention provides a valve core assembly that can be used for the dual regeneration mode control valve of the above-mentioned first embodiment. The flow valve core 8 is formed into a variable-section cylinder with large diameters at both ends and a small diameter in the middle. Its small-diameter section can be aligned with different water outlets on the valve body through axial displacement to form different water flow paths. At the same time, its first large-diameter section and the second large-diameter section can block the remaining paths on the valve body.

[0174] refer to Figure 1 Combine Figure 8 As shown, the downstream salt valve core 9 is formed into a variable cross-section cylinder with large diameters at both ends and a small middle diameter. When absorbing salt downstream, salt absorption / water replenishment is all passed through the position (forming a groove) with a small diameter in the middle of the downstream salt valve core 9.

[0175] refer to Figure 1 Combine Figure 9 As shown, the reverse flow salt valve core 10 is formed into a variable cross-section cylinder with larger diameters at both ends and a smaller diameter in the middle. It has two small diameter sections, with a large diameter section between the two small diameter sections. During reverse flow salt absorption, salt absorption and water replenishment pass through two different small diameter positions of the reverse flow salt valve core 10 (forming two grooves), with salt absorption passing through the front groove (closer to the small diameter position of the flow valve core 8) and water replenishment passing through the back groove (relatively farther away from the small diameter position of the flow valve core 8).

[0176] Fifth embodiment;

[0177] The present invention provides a flow meter that can be used for the dual regeneration mode control valve of the first embodiment, the flow meter is installed on the flow meter installation part of the valve body; Figure 10 、 Figure 11 As shown, the flow meter comprises:

[0178] The main body 16.1 is formed into a shape that is compatible with the valve body flow meter mounting portion 16.2 and can be inserted and fixed to the valve body flow meter mounting portion 16.2;

[0179] An impeller mounting portion 16.3 is formed on the top of the main body 16.1 and is used to mount an impeller assembly 16.4;

[0180] An annular magnet 16.5 is mounted in a first recess 16.6 at one end of the impeller assembly 16.4 and inserted into the impeller mounting portion 16.3, without contacting the impeller mounting portion 16.3;

[0181] The Hall element 16.7 is mounted in the Hall element mounting portion 16.8 of the main body 16.1. In this embodiment, the Hall element mounting portion 16.8 is formed as a mounting hole and has a mounting hole cover plate 16.9.

[0182] Exemplary, reference Figure 12 As shown, the impeller assembly 16.4 comprises:

[0183] Corundum 16.4.3, which is located between the impeller shaft 16.4.6 and the flowmeter blade 16.4.1;

[0184] The impeller shaft 16.4.6 has one end fixed in the impeller mounting portion 16.3 and the other end rests against the corundum 16.4.3;

[0185] Bushing 16.4.2, mounted on corundum 16.4.3 and impeller shaft 16.4.6;

[0186] The clamp 16.4.4 is fixed on the bushing 16.4.2.

[0187] Unless otherwise defined, all terms used herein (including technical and scientific terms) have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. It will also be understood that, unless expressly defined herein, terms such as those defined in commonly used dictionaries should be interpreted as having a meaning consistent with their meaning in the context of the relevant art, rather than being interpreted in an idealized or overly formal sense.

[0188] The present invention has been described in detail above by way of specific embodiments and examples, but these do not constitute limitations of the present invention. Without departing from the principles of the present invention, those skilled in the art may make many variations and improvements, which should also be considered within the scope of protection of the present invention.

Claims

1. A dual regeneration mode control valve, characterized in that: include: A drive assembly, which is used to drive the valve core assembly to reciprocate in the valve body assembly; A grid assembly (12) is fixed in the valve body assembly and is composed of a plurality of grids, each grid corresponding to a different water outlet of the water purification equipment; The valve core assembly comprises a flow valve core (8) and a salt valve core, wherein one end of the flow valve core (8) is connected to the drive assembly and the other end is connected to the salt valve core; The valve core assembly stops at different positions of the grid assembly (12), and the flow valve core (8) conducts the corresponding water outlet while blocking the other water outlets to form different water paths; A salt valve core, comprising a replaceable downstream salt valve core (9) and a reverse downstream salt valve core (10); When performing downstream regeneration, the downstream salt valve core (9) is installed, and the reverse regeneration water inlet is blocked with a plug, and the downstream salt valve core (9) stops moving to conduct the downstream regeneration water path; When performing reverse flow regeneration, the reverse flow salt valve core (10) is installed, and the downstream regeneration water inlet is blocked with a plug, and the reverse flow salt valve core (10) stops moving to conduct the reverse flow regeneration water path.

2. The dual regeneration mode control valve according to claim 1, characterized in that: Also includes: The water mixing component (13) is formed on the raw water channel and controls the amount of mixed water by changing the water flow area of the raw water channel.

3. The dual regeneration mode control valve according to claim 1, characterized in that: The drive components include: The motor (1) has an output end that engages with the upper end of a transmission assembly (5) extending out of a motor fixing frame (4), and its forward and reverse rotation drives the pull rod of the transmission assembly (5) to move up and down; A first infrared sensor (2) is fixed on the motor fixing frame (4) and is used to record the gear rotation angle and output a signal to the PCB (8); A second infrared sensor (3) is fixed on the motor fixing frame (4) and is used to locate the initial position of the pull rod and output a signal to the PCB (8); A motor fixing frame (4) fixed on a controller bracket (9); A transmission assembly (5) fixed to a controller bracket (9); The PCB (8) is fixed on the controller bracket (9).

4. The dual regeneration mode control valve according to claim 3, characterized in that: The transmission assembly (5) comprises: A large gear (51) is formed with teeth (511) on its lower outer periphery, and an upward hollow cylindrical extension (512) is formed at its axial center, the cylindrical extension (512) is formed with an internal thread, and a plug hole (515) is formed on the side wall of the cylindrical extension (512); The ball plug (52) blocks the plug hole (515) to prevent the ball (53) from falling out; A plurality of first light-transmitting grooves (514) are evenly distributed between the large gear (51) and the hollow cylindrical extension portion (512); a first spherical groove (513) formed in the hollow cylindrical extension (512); a gear fixing shaft (54) formed into a hollow structure, an upper portion of which is inserted into the hollow cylindrical extension portion (512); A limiting boss (541) is formed on the inner side wall of the upper portion of the central through hole (542) of the gear fixing shaft (54); A second ball groove (543) is formed on the upper portion of the outer side wall of the gear fixing shaft (54) and corresponds to the position of the first ball groove (513); an anti-rotation boss (544) formed on the lower portion of the outer side wall of the gear fixing shaft (54); a pin hole (545) formed at the lower portion of the outer side wall of the gear fixing shaft (54); The ball (53) connects the gear fixing shaft (54) and the large gear (51) together, and the large gear can rotate but cannot move axially; A pull rod, the upper portion of which is inserted into the through hole (542), and the upper side wall of which is formed with a thread (553), the thread (553) being screwed together with the internal thread of the columnar extension portion (512); A limiting groove (551) is formed on the upper side wall of the pull rod and is clamped in the limiting boss (541); The second light-transmitting groove (552) is formed on the upper side wall of the pull rod.

5. The dual regeneration mode control valve according to claim 1, wherein: The valve core assembly is made of PEEK.

6. The dual regeneration mode control valve according to claim 1, wherein: The flow valve core (8) is formed into a variable cross-section column with large diameters at both ends and a small diameter in the middle. Its small diameter section can align with different water ports on the valve body through axial displacement to form different water flow paths, while its first large diameter section and the second large diameter section can block the remaining paths on the valve body.

7. The dual regeneration mode control valve according to claim 1, wherein: The downstream salt valve core (9) is formed into a variable-section column with large diameters at both ends and a small diameter in the middle.

8. The dual regeneration mode control valve according to claim 1, wherein: The countercurrent salt valve core (10) is formed into a variable cross-section column with large diameters at both ends and a small diameter in the middle, and has two small diameter sections, with a large diameter section between the two small diameter sections.

9. The dual regeneration mode control valve according to claim 1, wherein: Also includes: The flow meter is installed on the flow meter installation part of the valve body; Flow meter, including: The main body (16.1) is formed into a shape adapted to the valve body flow meter mounting portion (16.2) and can be inserted and fixed to the valve body flow meter mounting portion (16.2); An impeller mounting portion (16.3) formed on the top of the main body (16.1) for mounting an impeller assembly (16.4); an annular magnet (16.5) which is mounted in a first recess (16.6) at one end of the impeller assembly (16.4) and inserted into the impeller mounting portion (16.3), and has no contact with the impeller mounting portion (16.3); A Hall element (16.7) is mounted in a Hall element mounting portion (16.8) of the main body (16.1).

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