TWI642866B - Two-side constant flow valve device and fluid supply system thereof - Google Patents

Abstract

The invention discloses a double-side constant flow valve device and a fluid supply system thereof. The valve device has a first fluid inlet end, a second fluid inlet end and a fluid outlet end, and the operating region of the operating mechanism is divided into a first fluid and a first fluid. a mixing degree adjustment region of the degree of mixing of the two fluids, and a flow regulating region for adjusting the flow rate of the fluid outlet end of the mixing degree adjusting region, and the flow rate of the minimum stop position of the flow regulating region of the first and second fluid regions of the operating mechanism is greater than zero, And the flow rate of the minimum stop in the flow regulation area of the mixed zone is equal to zero. The valve device and its hot fluid supply system are beneficial for saving the fluid passing through the valve device and can facilitate the normal use of the hot fluid supply device.

Description

Two-side constant flow valve device and fluid supply system thereof

The invention belongs to the field of valves, and particularly relates to the technical field of valve cores used in faucets, in particular to a single-handle double-connected water-saving valve core.

As one of the most commonly used control devices in production and life, valves are used to control the flow of fluids, such as controlling the type of fluid passing through and controlling the flow of fluid through. The faucets used by ordinary people to understand and contact the most are the faucets used in daily life. The faucet can be generally divided into a screw type, a wrench type, a lift type, and an induction type according to the opening method. The screw handle is opened by screwing, and when it is opened, it is rotated a lot of turns, and the flow rate of the water is adjusted by the number of turns of the screw. The more the number of turns, the larger the flow rate; the wrench handle is opened by the level rotation, and the angle of opening is used. The size is used to control the flow rate of water. The larger the opening angle is, the larger the flow rate is. The maximum angle is usually 90°. The lift-type handle is opened by vertical lifting. Similarly, the opening angle is used to control the water flow. The opening angle is larger. The larger the flow rate, the smaller the angle is usually less than 45°; the inductive faucet only needs to reach under the faucet to automatically discharge water through induction, but usually the outlet flow is fixed and cannot be adjusted.

The single-handle double spool is the most common faucet spool in life and production, especially the ceramic single-handle double spool. It is the hot and cold water faucet valve commonly used in kitchens and bathrooms. The valve core comprises a sealing piece composed of a fixing piece and a moving piece, and the operating mechanism is a control handle for controlling the sliding sliding of the moving piece relative to the fixed piece. The fixing piece is provided with a cold water inlet hole, a hot water inlet hole and a water outlet hole, and the moving piece is provided with a passage. The passage is configured to communicate the hot water inlet hole and the water outlet hole, or the cold water inlet hole and the water outlet hole, or the hot water inlet hole, the cold water inlet hole and the water outlet hole when the movable piece is sealed and sliding relative to the fixed piece. Taking the single-handle double-spool valve of the lift type as an example, the normal operation standard in China is that the control handle is turned left to the vicinity of the limit position, and only the hot water is discharged from the outlet hole. At this time, the water outlet only passes through the hot water inlet hole. The passage is connected; the control handle turns right to the vicinity of the limit position, and only the cold water is discharged from the outlet hole. At this time, the outlet hole only communicates with the cold inlet hole through the passage; and between the two is a mixed water area where the hot and cold water is mixed. At the same time, the water outlet hole communicates with the cold and hot water inlet holes through the passage, and the control handle turns to the left. The proportion of hot water in the cold and hot water inlet ratio is larger, and the hotter the water, until it becomes pure hot water; the handle is turned to the right. The greater the proportion of cold water in the ratio of cold to hot water, the colder the water until it becomes pure cold water. In the left and right rotation of the control handle, the flow rate of the water at the moment is adjusted by the upward lifting angle of the lifting handle, and the larger the angle, the larger the flow rate.

The single-handle double valve core of the ceramic piece has the advantages of convenient and flexible adjustment of hot and cold water, smooth and light operation of the control handle, good sealing of the ceramic piece (fixed piece, moving piece) and long service life of the valve core.

However, no matter how the control modes of the various valves are changed, especially the various faucets used in daily life, there are only two fixed flow adjustment positions, the closed position of the closed water and the maximum adjustment limit position of the outlet flow, only in these two Position, the user can quickly and easily adjust the operating mechanism in place, the corresponding flow is adjusted to a fixed size (for the most common single-handle double spool, it is the closed position, and the maximum flow up to the highest limit point on the handle) position). The user needs to adjust the operating mechanism slowly and carefully to achieve any flow between the closing and maximum flow rates (for the most common single-handle double spool, it is necessary to repeatedly adjust the handle angle up and down). However, in real life, the traffic required by the user is exactly the flow between the maximum traffic and the maximum traffic. When the user spends a long time adjusting the operating mechanism to the required traffic, this time has already caused a lot of traffic. Waste of water resources.

At the same time, in daily use, different water points/uses are different for proper water flow: for example, toilet hand washing is usually a suitable flow A, which can meet the cleaning needs without causing water. Excessive waste; while kitchen washing fruits and vegetables may be more suitable for flow B, and it is more suitable to wash clothes on the living balcony. Generally speaking, the flow rates A, B, and C are not the same, and the user cannot quickly and accurately adjust the operating mechanism in place under various water points/uses to achieve the required flow control.

In addition, for controlling the flow of hot fluid through a valve, it is common to control the flow of hot water, corresponding to a hot fluid supply device that supplies a hot fluid (eg, hot water), a hot fluid outlet of the hot fluid supply device, and a hot fluid of the valve device. The inlet end is connected, and the common hot fluid supply devices in daily life are various water heaters, such as gas water heaters and electric water heaters. There is a section of piping between the hot fluid supply device (such as a water heater) and the valve. When the hot water is used, the hot water remaining in the pipeline and in the water tank of the water heater cannot be utilized after the valve is closed, and the heat is wasted. At the same time, the hot water remaining in the water tank of the water heater will also cause the scale of the water tank to be rapidly generated, reducing the service life and heating efficiency of the water heater. In addition, in the case of using hot water, when the hot water is suspended, after the valve is closed, since the water tank still absorbs a high amount of heat, the high heat will continue to continue to heat the hot water remaining in the water tank. The water in the water tank will be heated to a temperature significantly higher than the original control temperature. When the valve is used to continue to use hot water, when the remaining hot water in the water tank is discharged from the valve, the user will notice that the temperature of the water is significantly higher. High, affecting the experience of use, and even causing burns in severe cases. Moreover, for the common single-handle double spool, the hot water control area is on the left side, and the cold water control area is on the right side. After the hot water is used, the user can directly turn off the handle to turn off the hot water; In the user, the user often forgets to rotate the handle to the cold water control area after turning off the hot water, so that the water heater will be directly activated when the next lift handle opens the valve. If hot water is not needed at this time, hot water will be wasted. .

At the same time, fluids are currently controlled by valves, in particular thermal fluids, for fluid supply devices that supply fluid to valves, in particular thermal fluid supply devices that supply hot fluids, since the temperature of the hot fluid (eg hot water) can only be supplied to the hot fluid. The device (for example, a water heater) is centrally controlled, and the temperatures of the different water points are uniform, and the fluid supply temperature of the hot fluid supply device (e.g., water heater) cannot be controlled by the valves of the respective water points. In daily life, the requirements for water temperature are different at different water points/uses. For example, washing the bathroom is a certain temperature A is usually appropriate; while kitchen washing may be more suitable for temperature D, bathroom bath is the temperature E is more appropriate. Under the prior art, the user can only repeatedly adjust the hot fluid supply temperature repeatedly in the hot fluid supply device (such as a water heater), or roughly control the outlet water temperature by substantially adjusting the cold water and hot water mixing ratio on the valve.

China's fresh water resources are scarce. With the increasing shortage of water resources, the problem of water conservation in water points such as kitchens and bathrooms is becoming more and more serious. There is an urgent need for a valve core with better water saving effect and more convenient and flexible use.

One of the objects of the present invention is to provide a valve device which is advantageous for saving fluid passing through the valve device. At the same time, the valve device can provide feedback information for the fluid supply device, particularly the hot fluid supply device, and facilitate the realization of the fluid through the valve. Control of the supply device, particularly control of the hot fluid supply temperature of the thermal fluid supply device; and when used in conjunction with the thermal fluid supply device, can facilitate normal use of the thermal fluid supply device.

Another object of the present invention is to provide a thermal fluid supply system that facilitates the normal use of the thermal fluid supply of the thermal fluid supply system.

A third object of the present invention is to provide a fluid supply system using the valve device of the present patent.

The fourth object of the present invention is to provide a single-handle double-connected water-saving valve core, which is beneficial to save water and facilitate the normal use of the water heater.

The object of the present invention is achieved by the following technical solutions:

A valve device comprising a valve device that controls a fluid passage state when a fluid passes, and an operating mechanism that achieves the aforementioned control by operating in an operating region thereof, the valve device having a first fluid inlet end, a second fluid inlet end, and a fluid outlet The operating area of the operating mechanism is divided into a mixing degree adjusting area for adjusting the mixing degree of the first fluid and the second fluid, and a flow regulating area for adjusting the flow rate of the fluid outlet end in the mixing degree adjusting area, and the mixing degree adjusting area is divided into a fluid outlet. a first fluid region where only the first fluid exits, and a second fluid region where only the second fluid exits the fluid outlet end, and an intermediate region between the first fluid region and the second fluid region, the fluid outlet end of the intermediate region No fluid is present, or a mixed region of the first fluid and the second fluid mixed fluid is discharged from the fluid outlet, and the flow rate of the minimum stop of the flow regulating region of the first and second fluid regions is greater than zero, and in the mixed region The flow rate of the minimum stop of the flow regulation area is equal to zero.

In the solution of the present invention, the first fluid and the second fluid may be the same kind of fluid, or different kinds of fluids, such as water and other fluids, or water, etc.; and at the same time, may be different The same type of fluid in the state may also be the same type of fluid in the same state, such as cold water and hot water, or both cold water or hot water. The cold and heat are only relative in relative terms, and the absolute meaning is that the hot water is only water with a higher temperature than the cold water. Cold water usually refers to normal temperature water. The most common is tap water in daily life. At the same time, cold water can also be lower temperature water obtained by further cooling normal temperature water. Hot water, in general, refers to water that is heated to a temperature that is further heated by normal temperature water. In addition, the first fluid and the second fluid are only used to distinguish two fluids, and are not absolutely defined. For example, for cold water and hot water, cold water can be used as the first fluid, and hot water is relatively the second fluid. Conversely, hot water can also be used as the first fluid, and cold water naturally becomes the second fluid. In the mixing degree adjustment region, the mixing region is optional, that is, the fluid outlet end can only discharge the first fluid or the second fluid, but not the mixed fluid; and in the mixing degree, when the first fluid accounts for 100% When the second fluid accounts for 0%, that is, the first fluid region of the first fluid is discharged at the fluid outlet end; conversely, when the first fluid accounts for 0% and the second fluid accounts for 100%, that is, the fluid outlet end only A second fluid region of the second fluid. The flow adjustment area refers to an operable physical range in which the operating mechanism adjusts the flow, including the minimum adjustment position (minimum stop/minimum stop position), the adjustment area, and the maximum adjustable position (maximum stop/maximum) Stop position); likewise, the handle placement position refers to an operable physical position of the handle to adjust the flow; for the lift type open tap (typically a single handle double valve), the lift handle By vertically lifting up, the angle of the raised angle is used to control the flow of water. When the angle is zero, the faucet is closed, and the handle position is the lower stop position, which is the minimum adjustment position (minimum stop/minimum stop position); When the lifting angle is maximum (the flow rate is usually the largest at this time), the handle position is the upper stop position, which is the maximum adjustment position (maximum stop position/maximum stop position). Similarly, the wrench handle is opened by level rotation, and the flow angle is controlled by the angle of opening. The larger the opening angle is, the larger the flow rate is. The point at which the angle is 0° (usually the closed position) is the minimum adjustment position (minimum The bit/minimum stop position), and the other point with the largest angle (usually the maximum flow position) is the maximum adjustment position (maximum stop/maximum stop position). The intermediate portion has two states, one is that the fluid outlet end of the intermediate portion is free of fluid, and the other is a state in which the fluid outlet ends the first fluid and the second fluid mixed fluid, and is defined as a mixed region.

According to the solution of the present invention, compared with the existing various valves, in particular, compared with the existing conventional single-handle double-spool, the flow regulating area has the closed position where the flow rate of the minimum stop common to the prior art is equal to zero, and the position of the large adjustment value. In addition, there is a minimum stop position of the two extreme positions of the fixed flow between the two (the fixed flow rates of the two fixed positions may be the same or different, preferably different). The difference from the existing valve is that the flow rate of the minimum stop position of the flow regulating region of the first valve, the two fluid region and the mixing region of the existing valve is equal to zero, that is, the three positions are all closed positions, and the patent Then, the minimum stop of the flow regulating area of the first and second fluid regions is changed to the control position of the specific flow with the flow greater than zero. When the fixed flow rates of the two fixed positions are different, for example, the flow rates of the two minimum stop positions are respectively designed as the flow rate A suitable for hand washing and the flow rate B suitable for washing fruits and vegetables, and the operating mechanism can be simply and quickly placed in the corresponding position. Get a flow rate suitable for hand washing or washing fruits and vegetables. Take the common single-handle double spool as an example. The leftmost lowermost operating position of the handle of the existing single-handle double spool (usually the first fluid area, such as the closed position of hot water) and the lowest rightmost operation. The position (usually the second fluid area, such as the closed position of the cold water) is the closed position, and the patent places the handle in the leftmost lowermost operating position to obtain a specific flow rate A suitable for hand washing, and the handle is placed at the most The lowermost operating position on the right side gives a specific flow B suitable for washing fruits and vegetables, while the lowermost operating position of the area between the two (usually the mixing area, such as the closed position of the mixed water of hot and cold water) and existing The single-handle double-spool is the same as the closed state; the reverse is also the same. In this patent, the handle can be placed at the rightmost lowermost operating position to obtain a specific flow B suitable for washing fruits and vegetables, and the handle is placed on the leftmost side. The lowermost operating position results in a specific flow rate A suitable for hand washing, while the lowermost operating position in the middle is the same as the existing single-handle double spool.

Based on the foregoing design, taking daily water as an example, the present invention can design different minimum stop corresponding flow rates of the flow adjustment area of the operating mechanism in the first fluid region according to different water points/use occasions, for example, forming a separate flow corresponding to the toilet washroom. The flow rate A, the flow rate B for kitchen washing fruits and vegetables, the flow rate C suitable for living balcony washing, etc., are applied to the respective water points/use occasions to achieve the most user-friendly and convenient use at the same time. Water saving. In particular, the valve of this patent has two specific flow rates at the same time, which can correspond to two water points/use cases respectively.

Further, since the valve of the present invention has a specific state of two specific flows in addition to the closed state and the maximum flow state, the specific state of the specific flow rate can become the identification signal/control signal of the valve, and the fluid supply device The valve can be identified based on the specific flow information, thereby correspondingly taking corresponding control operations. Taking the water temperature control device (for example, a water heater) as an example, when the user washes the hand in the bathroom, the operating mechanism is first directly turned to the specific state to start the water heater, and the water heater can detect (sensing) the valve with the toilet. The specific signal corresponding to the specific flow rate A (such as the flow value or dynamic pressure / static pressure ratio or dynamic pressure / full pressure ratio or static pressure / dynamic pressure ratio, etc.), the valve identified as the toilet is washing the hand, directly the water temperature Adjusted to the pre-made temperature A suitable for hand washing; and if it is necessary to wash clothes in the restroom, the specific flow rate of the other specific state of the valve corresponds to the feedback signal suitable for the temperature of the laundry, and the water heater adjusts the temperature again to the temperature suitable for washing clothes. When the user washes the dishes in the kitchen, the operating mechanism is first directly transferred to the specific state, and the water heater is activated. The water heater can detect (sensing) a specific signal corresponding to the specific flow D of the valve of the kitchen, and recognizes as a kitchen. The valve is in the dishwashing operation, and the outlet water temperature is directly adjusted to the pre-made temperature D suitable for dishwashing; the kitchen valve The door can also have a specific state of two specific flows, which are fed back to the water heater to output a suitable water temperature. The same is true for bathroom showers. Similarly, the valve device can also connect only one of the inlet holes to the hot water, i.e., only the specific state of one of the specific flows of the spool is used as the identification/control signal.

Meanwhile, the prior art hot fluid supply device (for example, a gas water heater) has a minimum flow rate for shutting down its heating system, below which the water heater will turn off the heating system (extinguish), and the operating mechanism of the present invention can be The flow rate of the minimum stop of the flow regulation area of a fluid zone (hot water zone) is greater than zero. When the flow rate of this minimum stop is less than the minimum flow of the water heater shutdown, the heating system in the water heater will be closed, and the valve to the water heater The remaining hot water in the road and the water heater tank can still be discharged from the valve, and the subsequent cold water will also enter the water tank and cool the water tank, thereby achieving full utilization of the hot water and solving the fouling of the water tank and continuing to use the heat. Water, the temperature of some hot water is significantly higher. At the same time, the flow rate of the minimum stop position of the flow regulating area of the first and second fluid regions of the patent valve is greater than zero. Therefore, the first and second fluid inlet ends can be respectively connected with two hot fluid supply devices, such as gas respectively. Water heaters and electric water heaters can be used only when they are out of gas or only when they are powered off; for example, they are connected to fast instant water heaters and large-capacity volumetric water heaters, respectively, to meet the different needs of quickly obtaining hot water and using large amounts of hot water, and so on.

Alternatively, the flow rate of the maximum stop of the flow regulating region of the first fluid region of the operating mechanism and the flow rate of the maximum stop of the flow regulating region of the second fluid region are not equal. In this scheme, the quick-opening valve core is a common faucet valve core in daily life and production, especially the ceramic chip quick-opening valve core, which is a commonly used faucet valve core. The ceramic chip quick-opening valve core has the advantages that the control handle is smooth and light, the ceramic piece (fixing piece, moving piece) is sealed, and the valve core has a long service life. On the other hand, since the control handle is smooth and light, it is easy to open the water flow to the maximum value when opening, and waste is caused by excessive water flow. At the same time, because the flow adjustment stroke of the control handle is short, it is not suitable for controlling the water flow more accurately. That is, in daily life, although the faucet can obtain the maximum flow when the handle is opened to the maximum, in most cases, the maximum flow will not be used, even if large flow is required, it is usually a less than the maximum flow. One of the second largest traffic. However, the existing faucet cannot quickly adjust the handle to this position, and can only be adjusted slowly to obtain the flow value. In this option of the patent, the flow rates of the two maximum stops can meet the requirements of different fluids, and the fluid can be saved to the utmost, and the different maximum flow rates can be further selected according to different use requirements.

Alternatively, the first fluid inlet end, the second fluid inlet end, and the fluid outlet end of the valve device are integrated into a single device, or the first fluid inlet end, the second fluid inlet end, and the fluid outlet end are separately disposed in two Or within three single devices. In this aspect, the valve means may be a single unit in which the first fluid inlet end, the second fluid inlet end and the fluid outlet end are integrated into a single unit, or may be separate or separate split units. A typical representative of a single unit is the existing daily water taps, such as a single-handle double spool faucet. The unit device generally includes a valve core, a valve core seat and a valve core housing, and a device housing, and the valve core seat is provided with an inlet and outlet respectively communicating with the first fluid inlet end, the second fluid inlet end and the fluid outlet end of the valve core respectively And the split device, typically represented as a remote control valve, generally, the fluid outlet end and the operating mechanism are integrated, and the operating mechanism is respectively connected to the first fluid inlet end and the second fluid inlet end of the distal end, Break and flow control. The operating mechanism of the valve device, including the external operating mechanism, and the internal operating mechanism connecting the external operating mechanism and the spool, may be a control handle, a control knob, a control ring or even a control button and a touch screen.

Alternatively, the valve device comprises a sealing piece composed of a fixing piece and a moving piece, and the operating mechanism is a control handle for controlling the sliding sliding of the movable piece relative to the fixed piece, and the fixed piece is provided with a separated first fluid inlet end, a second fluid inlet end and At the fluid outlet end, the movable piece is provided with a passage for communicating the first fluid inlet end and the fluid outlet end, or the second fluid inlet end and the fluid outlet end, or the first fluid inlet when the rotor is sealingly sliding relative to the fixed piece. a second fluid inlet end and a fluid outlet end; the first fluid inlet end and the fluid outlet end are communicated through the passage on the rotor when the handle is in the first fluid region, and the second fluid inlet is in the second fluid region when the handle is in the second fluid region The end and the fluid outlet end communicate with each other through a passage on the moving piece. When the control handle is in the mixing area, the first fluid inlet end, the second fluid inlet end and the fluid outlet end communicate through the passage on the moving piece; when the control handle is adjusted in the flow regulating area, The area of the passage on the moving piece and the overlapping area of the first fluid inlet end, the second fluid inlet end and the fluid outlet end are changed; the handle is in the When the flow adjustment region of the one or two fluid regions is at the minimum stop position, the first or second fluid inlet end and the fluid outlet end communicate through the passage on the moving piece, and when the flow adjustment region of the mixed region is at the minimum stop position, the first Both fluid inlet ends are disconnected from the fluid outlet end. In this solution, the valve device of the present patent is preferably a typical valve including a sealing piece composed of a fixing piece and a moving piece.

As a further option 3 of option 2, the opposite ends of the first fluid inlet end and the second fluid inlet end respectively have an extension bent toward the fluid outlet end, and the flow adjustment of the control handle in the first or second fluid region When the minimum stop position of the region, the extension portion and the fluid outlet end of the first or second fluid inlet end communicate with each other through the passage on the moving piece, and the area of the overlapping area of the passage on the moving piece and the extending portion increases as the adjustment value increases, The handle is adjusted from the first or second fluid region to the other fluid region and the area of the overlap region is reduced.

As a further option 4 of option 2, the opposite ends of the first fluid inlet end and the second fluid inlet end are respectively inclined toward the fluid outlet end, the two being in a "eight-shaped" distribution, the handle being in the first or second fluid When the flow adjustment area of the region is at the minimum stop position, the region of the first or the second fluid inlet end that is relatively close to the fluid outlet end and the fluid outlet end communicate with the passage on the moving piece, and the adjustment channel increases the overlap of the channel on the moving piece with the region. The area of the area is increased, and the area of the overlap area is reduced as the control handle is adjusted from the first or second fluid area to the other fluid area.

As a further option 5 of option 2, the first fluid inlet end and the second fluid inlet end are at a distance from the fluid outlet end, but the control stem is between the passage on the rotor and the first or second fluid inlet end in the first or second fluid region The distance between the channel on the rotor and the first or second fluid inlet end when the control handle is in the mixed region, and the first stop of the flow control region of the first or second fluid region is the first stop. Or the two fluid inlet end and the fluid outlet end communicate through the passage on the rotor, and as the adjustment value increases, the area of the overlap between the passage on the rotor and the first or second fluid inlet end increases, with the control handle from the first or second fluid region The fluid area is adjusted to the other side and the area of the overlap area is reduced.

As a further option 6 of option 5, the distance between the channel on the rotor and the first or second fluid inlet end (distance less than zero, partially overlapping) of the control handle in the first or second fluid region is controlled by the limit device The control handle is closer to the distance between the passage of the first or second fluid inlet end (distance greater than zero, separated from each other) in the mixing zone, the valve device comprises a casing and an external handle, and the valve core and the valve core are arranged therein a housing and a control handle, the external handle is connected to and operated by the control handle, the valve core comprises a sealing piece formed by a fixing piece and a moving piece, the limiting element device is disposed on the moving piece and/or the fixing piece, or the limiting element device Disposed on the rotor and/or the valve core housing, or the limiting device is disposed on the control handle and/or the valve core housing, or the limiting device is disposed on the control handle and/or the outer casing, or the limiting device is disposed On the outside handle and / or on the outer casing.

Alternatively, the first and/or the two fluid inlet ends of the valve means are hot fluid inlet ends, and the flow of the minimum stop of the flow regulating region of the first and/or second fluid region of the operating mechanism is greater than zero and less than 3 liters per minute. , or greater than 3 less than 5 liters / minute, or greater than 5 liters / minute. In this solution, when the flow rate is greater than zero and less than 3 liters/min, the flow rate of the minimum stop position of the flow regulating region of one or both of the first and second fluid regions of the operating mechanism is smaller than that of most of the hot fluid supply devices (for example, water heaters, In particular, the lowest flow rate of the heating system of the gas water heater, as previously described, facilitates the normal use of the hot fluid supply.

As an option 8, the valve device is a single-handle double-spool, the operating mechanism is a control handle, and the minimum stop of the control handle in the flow regulation area is the lower stop; the control handle is the single-heat of the spool mode in the first fluid region. The mode is a single cooling mode of the spool mode in the second fluid region, and a hot and cold mixing mode of the spool mode in the mixed region; the valve device has an open state in which the fluid outlet end flow is greater than zero to the spool state, and the fluid outlet end The flow rate is equal to zero, which is the closed state of the spool state; when the control handle is in the lower stop position of the single cooling mode, the flow rate at the fluid outlet end is greater than zero, and the spool is in the single cold mode critical state or saves the state, when the control handle is in a single heat When the bottom stop of the mode, the flow rate at the fluid outlet end is greater than zero, and the spool is in a single thermal mode critical state or saved state. In this solution, the present invention is specifically applied to an existing single-handle double spool. In this scheme, the single heat mode means that only the hot water is discharged at the fluid outlet end, and when the first fluid is hot water, it is the first fluid region; likewise, the single cold mode means that only the cold water is discharged from the fluid outlet end. When the second fluid is cold water, it is the second fluid region. The concepts of the single-heat mode and the single-cool mode are applicable to the entire patent and will not be repeated hereinafter.

As a further option of option 8, the maximum stop of the handle in the flow adjustment area is the upper stop position, and the adjustment area is between the upper stop position and the lower stop position; when the control handle is in the lower stop position of the hot and cold mixing mode, the valve The core is in the closed state. The stop position from single cooling mode to the single cooling mode is the single cooling mode large flow adjustment area. The stop position from single cooling mode to cold and hot mixing mode is the single cooling mode small flow adjustment area. From the single-heat mode to the single-heat mode, the upper stop is the single-heat mode large flow adjustment area. The stop position from the single-heat mode to the cold-hot mixing mode is the single-heat mode small flow adjustment area.

As a further option 10 of option 9, when the handle is placed in the single cold mode stop position, between the first fluid inlet end (cold water inlet hole) and the fluid outlet end (water outlet hole) on the fixed piece, through the upper channel of the moving piece The communication, the first fluid inlet end (cold water inlet hole) communicates with the fluid outlet end (water outlet hole), so that the (water) valve core is in a single cold mode critical state; the control handle is placed in the single thermal mode stop position When the second fluid inlet end (hot water inlet hole) and the fluid outlet end (water outlet hole) on the fixed piece pass through the communication of the upper passage of the moving piece, the second fluid inlet end (heat inlet hole) and The fluid outlet end (water outlet) communicates with the (water) spool in a single thermal mode critical state. The reverse is also true, that is, the first fluid inlet end is a hot water inlet and the second fluid inlet end is a cold water inlet.

A thermal fluid supply system comprising the aforementioned valve device, and one or two thermal fluid supply devices, the thermal fluid outlets of each thermal fluid supply device being exclusively in communication with the first and/or second fluid inlet ends of the valve device, respectively, and The thermal fluid supply device is controlled (directly or indirectly controlled) by the operating mechanism of the valve device to open or close its hot fluid supply, the thermal fluid supply device having a minimum flow rate to shut down its heating system, the first and/or second fluid of the valve device When the flow at the inlet end is lower than the minimum flow, the communicating thermal fluid supply device will shut down its heating system, and the operating mechanism of the valve device is at the minimum stop of the flow regulating region of the first and/or second fluid region, its first sum / or the flow rate at the inlet end of the two fluids is greater than zero, but below the minimum flow rate at which the hot fluid supply connected thereto shuts off its heating system.

In the above solution, the hot fluid, only relative to the cold fluid, does not have an absolute meaning, that is, the hot fluid is only a fluid having a higher temperature than the cold fluid. Cold fluid usually refers to a normal temperature fluid. Taking water as an example, the most common is tap water in daily life. At the same time, the cold fluid can also be a lower temperature water obtained by further cooling the normal temperature water. Hot water, in general, refers to water that is heated to a temperature that is further heated by normal temperature water. The hot fluid supply device may be a device having a fluid heating function, such as various water heaters (gas water heaters, electric water heaters, etc.). At the same time, since the flow rate of the minimum stop position of the flow regulating area of the first and second fluid regions of the valve of the patent is greater than zero, when only one hot fluid supply device is connected, it can be connected with one (ie, connecting the first or second Fluid inlet end); if two hot fluid supply devices are connected, they can be connected separately (one connected to the first fluid inlet end and the other connected to the second fluid inlet end) to control different thermal fluid supply devices.

A fluid supply system comprising at least one of the aforementioned valve means, and a fluid supply means, the fluid outlets of the fluid supply means are in communication with the first and / or second fluid inlet ends of the respective valve means, respectively, and are controlled according to the operating mechanism of the valve means The first or second fluid inlet end flow controls (directly or indirectly controls) the fluid supply to the fluid supply.

Alternatively, the fluid supply device has identification means for identifying a flow signal of each valve means at a minimum stop of the flow regulating region of the operating mechanism in the first and / or second fluid region, and controlling based on the identification of the identification device Its internal operating controls.

Alternatively, the fluid supply device is a thermal fluid supply device having a heating system for heating the fluid therein, the hot fluid outlet of the thermal fluid supply device being in communication with the first and/or second fluid inlet ends of each valve device, and The first or second fluid inlet end flow control (direct or indirect control) of the hot fluid supply of the thermal fluid supply is controlled by an operating mechanism of the valve means.

The valve device of the present patent is combined with an existing fluid supply device into a fluid supply system. Since the valve device of the present patent has two specific flow information as described above, when the specific flow information is utilized by the fluid supply device, the existing fluid supply device is made It has the potential to form a smart fluid supply system that outputs different fluids for different valve devices. For example, after the identification device of the fluid supply device recognizes the signal, the fluid corresponding to the valve can be controlled by the control device, whereby different valve devices can obtain the fluid most suitable for use (and since the valve device of the patent has Two of the aforementioned specific flow information, whereby each of the valve devices of this patent can obtain two fluids that are most suitable for their use). For example, if the fluid supply device is a hot fluid supply device (for example, a water heater), different specific flow information may be assigned to different fluid temperatures according to different use occasions/requirements, and thus, each valve device may be suitable for use thereof. / Demand fluid temperature. Taking the water temperature control device (for example, a water heater) as an example, when the user washes the hand in the bathroom, the operating mechanism is placed in the minimum stop position of the flow regulating area of the first fluid region, and the water heater can continuously detect (sensing) The specific signal corresponding to the continuous flow rate A of the valve of the restroom (such as the flow value or the dynamic pressure/static pressure ratio or the dynamic pressure/total pressure ratio or the dynamic pressure/static pressure ratio, etc.) is recognized as the valve of the restroom. The hand washing operation directly adjusts the outlet water temperature to a pre-made temperature A suitable for hand washing; and if it is necessary to wash the clothes in the restroom and place the operating mechanism into the minimum stop position of the flow regulating area of the second fluid region, the valve is another The specific flow rate of the specific state corresponds to the feedback signal suitable for the temperature of the laundry, and the water heater adjusts the temperature to the temperature suitable for washing clothes; and when the user washes the dishes in the kitchen, the operating mechanism is also placed in the flow regulating area of the first fluid region. With a minimum stop, the water heater can continuously detect (sensing) a specific signal corresponding to the continuous specific flow D of the valve of the kitchen, Do not use the kitchen valve for the dishwashing operation, directly adjust the outlet water temperature to the pre-made temperature D suitable for dishwashing; the kitchen valve can also have two specific flow conditions, and feed back to the water heater to output the appropriate water. temperature. The same is true for bathroom showers.

The utility model relates to a single-handle double water-saving valve core. The spool mode has a single cooling mode, a single heating mode and a hot and cold mixing mode. The control handle is placed in an adjustment area and a lower stop position, and the spool state has an open state and a closed state, and the control handle When the single cold mode is placed in the stop position, the water-saving spool is in the single-cool mode saving state, and the water-saving spool is in the single-heat mode saving state when the control handle is placed in the single-heat mode.

As an option 1', when the control handle is placed in the single cold mode, the cold water inlet and the water outlet are communicated between the cold water inlet hole and the water outlet hole on the fixed piece through the passage of the upper passage of the moving piece. The water-saving spool is in a single-cooling mode to save the state; when the control handle is placed in the single-heat mode, the hot water inlet is connected between the hot water inlet hole and the water outlet hole on the fixed piece through the passage of the moving piece. The hole communicates with the water outlet hole, so that the water-saving spool is in a single-heat mode saving state.

Furthermore, a single-handle double-water-saving spool has a single-cool mode, a single-heat mode, and a hot-hot mixing mode. The handle is placed in the upper stop position, the adjustment area and the lower stop position, and the spool state has In the open state and the closed state, the water-saving spool is in the single-cool mode critical state when the control handle is placed in the single-cool mode, and the water-saving spool is in the single-heat mode critical state when the control handle is placed in the single-heat mode. The water-saving spool is closed when the stop position is set in the hot and cold mixing mode. The stop position from single cooling mode to the single cooling mode is the water-saving spool single-cooling mode large flow adjustment area, from the single cooling mode to the stop position. In the hot and cold mixing mode, the stop position is the water-saving spool single-cooling mode small flow adjustment area, from the single-heat mode stop position to the single-heat mode upper stop position is the water-saving spool single-heat mode large flow adjustment area, from the single-heat mode The stop position in the hot and cold mixing mode is the water-saving spool single-heat mode small flow adjustment area.

As an option, when the control handle is placed in the single cold mode, the cold water inlet and the water outlet are communicated between the cold water inlet hole and the water outlet hole on the fixed piece through the passage of the upper passage of the moving piece. The water-saving valve core is in a single cold mode critical state; when the control handle is placed in the single-heat mode, the hot water inlet is connected between the hot water inlet hole and the water outlet hole on the fixed piece through the upper passage of the moving piece. The hole communicates with the water outlet hole, so that the water-saving spool is in a single heat mode critical state.

As mentioned above, as a specific single-handle double-saving water-saving valve core of the foregoing valve device, the concepts thereof are as described above, and it is reiterated again: in the patent, the handle-position position means that the control handle regulates the flow rate. The operative physical position, for the faucet of the lift-on type (typically a single-handle double valve), the lift-type handle is opened by vertical lifting, and the angle of the lift is used to control the flow of water. The angle is When the time is zero, the faucet is closed, and the handle position is the lower stop position, which is the minimum adjustment position (lower stop position/minimum stop position); when the lift angle is maximum (the flow rate is usually the largest at this time), the handle position is the last stop. Bit is the maximum adjustment position (top stop/maximum stop position), and the adjustment area is between the top stop and the bottom stop. Similarly, the wrench handle is opened by the level rotation, and the flow angle is controlled by the angle of the opening. The larger the opening angle is, the larger the flow rate is. The point at which the angle is 0° (usually the closed position) is the minimum adjustment position (bottom stop position) The bit/minimum stop position), and the other point with the largest angle (usually the maximum flow position) is the maximum adjustment position (top stop/maximum stop position). The single heat mode means that only the hot water is discharged from the outlet end of the spool (outlet hole). Similarly, the single cold mode means that only the cold water is discharged from the outlet end of the spool. The flow rate at the outlet end of the spool is greater than zero, which is the open state of the spool state, and the flow at the outlet end of the spool is equal to zero, which is the closed state of the spool state; when the control handle is in the lower stop position of the single cooling mode, the flow at the outlet end of the spool is greater than zero. At this time, the spool is in the single cold mode critical state or saved state, or when the control handle is in the bottom stop position of the single heat mode, the flow rate of the spool outlet is greater than zero, and the spool is in the single thermal mode critical state or saved state. . In the hot and cold mixing mode, the water outlet of the valve core is mixed with cold water and hot water. For the single-handle double valve core, the cold water inlet hole and the hot water inlet hole on the fixed piece are simultaneously connected to the water outlet hole through the passage on the moving piece, It also has a top stop and a bottom stop. Generally, the top stop flow is the largest and the bottom stop is the closed state.

As a further option A of the two kinds of single-handle double-water-saving valve cores, the opposite ends of the hot water inlet hole and the cold water inlet hole respectively have an extension portion bent toward the water outlet hole, and the control handle is in the single heat mode or When the single cold mode is in the stop position, the extension portion and the water outlet hole of the hot water inlet hole or the cold water inlet hole communicate with each other through the passage on the moving piece, and the area of the overlapping area of the passage on the upper moving piece and the extending portion increases with the lower stop position. Large, with the control handle from single heat mode or single cold mode to the other mode adjustment and the area of the overlap area is reduced.

As a further option B of the two kinds of single-handle double water-saving valve cores, the opposite ends of the hot water inlet hole and the cold water inlet hole are respectively inclined toward the water outlet hole, and the two are distributed in a “eight-shaped shape”, and the control handle is When the single hot mode or the single cold mode is in the stop position, the area of the hot water inlet or the cold water inlet hole relatively close to the water outlet hole and the water outlet hole communicate with the passage on the moving piece, and the passage on the upper moving piece with the lower stop position and the The area of the overlapping area of the area is increased, and the area of the overlapping area is reduced as the control handle is adjusted from the single heating mode or the single cooling mode to the counterpart mode.

As a further option C of the above two single-handle double-water-saving valve cores, the hot water inlet hole and the cold water inlet hole have the same distance from the water outlet hole, but the passage and the heat inlet on the moving piece of the control handle in the single heat mode or the single cooling mode. The distance between the water hole or the cold water inlet hole is closer than the distance between the heat inlet hole or the cold water inlet hole in the moving piece when the control handle is in the mixed area, and the control handle is in the single heat mode or the single cooling mode. When the position is stopped, the hot water inlet hole or the cold water inlet hole and the water outlet hole communicate with each other through the passage on the moving piece, and the area of the overlapping area of the upper moving piece and the hot water inlet hole or the cold water inlet hole increases with the lower stop position. The area of the overlap area is reduced as the control handle is adjusted from the single thermal mode or the single cold mode to the counterpart mode.

As a further option D of the selection C, the distance between the channel on the moving piece and the hot water inlet or the cold water inlet hole of the control handle in the single heat mode or the single cooling mode by the limit position device is compared with the control handle in the mixed area. The passage on the timing piece is closer to the hot water inlet hole or the cold water inlet hole, and the valve device comprises a casing and an outer handle, the valve body is provided with a valve core and a valve core casing and a control handle, and the external handle is connected with the control handle And operating it, the valve core comprises a sealing piece composed of a fixing piece and a moving piece, the limiting element device is disposed on the moving piece and/or the fixed piece, or the limiting element device is disposed on the moving piece and/or the valve core casing , or the limiting device is disposed on the handle and/or the spool housing, or the limiting device is disposed on the handle and/or the housing, or the limiting device is disposed on the external handle and/or the housing.

As a further option E of the foregoing two single-handle double-water-saving spools, when the water-saving spool is in the single-heat mode saving state or the critical state, the flow rate of the hot water inlet hole is greater than zero or less than 3 liters/min.

A thermal fluid supply system comprising the aforementioned single-handle double-water-saving spool, and a thermal fluid supply having a heating system for heating the fluid therein, a hot fluid outlet of the thermal fluid supply and a single-handle double-water-saving spool The hot water inlet is connected, and the hot fluid supply device controls the hot fluid supply device to open or close the hot fluid supply by the handle of the single handle double water saving valve core. The hot fluid supply device has a minimum flow rate for closing the heating system, and the single handle double water saving When the flow rate of the hot water inlet of the spool is lower than the minimum flow, the connected thermal fluid supply device will shut down its heating system, and the operating mechanism of the single-handle double-water-saving spool will stop when it is stopped in the single-heat mode. The flow rate of the water orifice is greater than zero, but is lower than the minimum flow rate of the heating fluid system that is in communication with it.

A fluid supply system comprising at least one valve device, and a fluid supply device, wherein fluid outlets of the fluid supply device are respectively in communication with fluid inlet ends of the respective valve devices, and control fluid inlet end flow control fluid supply devices according to an operating mechanism of the valve device In the case of fluid supply, the valve device is the aforementioned single-handle double-connected water-saving spool, and the fluid outlets of the fluid supply device are respectively communicated with the hot water inlet holes and/or the cold water inlet holes of the single-handle double water-saving valve core.

As an option A', the fluid supply device has identification means for identifying flow signals of the respective single-handle double-water-saving spools in their single-heat mode and/or single-cooling mode, and the identification result according to the identification means A control device that controls its internal operation.

As an option B', the fluid supply device is a thermal fluid supply device having a heating system for heating the internal fluid thereof, the hot fluid outlet of the thermal fluid supply device being in communication with the hot water inlet of each of the single-handle double water-saving spools, and The hot water supply of the hot fluid supply device is controlled by the control handle of the single-handle double-water-saving spool.

In the case of a conventional spool, for ease of handling, the control handle is usually placed in the lower stop position to set the spool to the closed state, and the lower stop to the upper stop is the spool flow adjustment area. For the single-handle double common spool, the control stem is placed in the single-cool mode stop position, the single-heat mode stop position, and the hot-cold mix mode stop position when the spool is closed. The single-handle double-saving water-saving valve core of the invention sets the control handle into the single-cool mode, and the stop position is set to the critical state of the valve core single-cooling mode (or the state of saving/spool saving state), and the control handle is placed in the single In the hot mode, the stop position is set to the spool single heat mode critical state (or save state/spool save state), and the control handle is placed in the cold and hot mix mode stop position (or the middle position of the stop position in the hot and cold mix mode) setting. For the spool closed state, that is, as described above, the flow rate of the minimum stop of the operating mechanism in the flow regulating region of the mixing zone is equal to zero. Thus, the water-saving spool of the present invention adds a state/critical state that is easy to handle. The water-saving spool in the state of saving/critical state can be set according to factors such as the type of water-saving spool, the way of use, and the water-saving requirements. The easy-to-operate operation refers to the operation difficulty of the water-saving valve core placing the control handle into the lower stop position (making the water-saving valve core in a certain open state), which is significantly lower than the ordinary valve core placing the control handle into a specific position in the adjustment area. The difficulty of operating (making the normal spool in a specific open state). The critical state/saving state means that the water-saving spool is in a specific open state (corresponding to a specific open state in which the spool is placed when the control spool is placed in a certain position in the flow regulating region), that is, the foregoing The flow rate of the minimum stop of the flow regulating region of the first or second fluid region is greater than a specific flow state of zero. Thus, the adjustment area of the water-saving spool in the single cooling mode of the present invention is divided into a large flow adjustment area and a small flow adjustment area, that is, from the single cold mode to the single cold mode, the upper stop is the water saving spool single cold mode large flow. (greater than the critical state flow) adjustment area, that is, as described above, the flow adjustment area, from the stop position in the single cooling mode to the stop position in the hot and cold mixing mode, is the small flow rate (less than the critical state flow) adjustment area of the water-saving spool single cooling mode, That is, as described above, the first or second fluid region in the mixing degree adjustment region. Similarly, the adjustment area of the water-saving spool in the single-heat mode of the present invention is divided into a large flow adjustment area and a small flow adjustment area, that is, from the single-heat mode stop position to the single-heat mode upper stop position, the water-saving spool single-heat mode large flow rate (greater than the critical state flow) adjustment area, from the single thermal mode stop to the cold and hot mixing mode, the stop position is the water-saving spool single-heat mode small flow (less than the critical state flow) adjustment area. At the same time, the adjustment stroke of the control shank of the water-saving valve core of the present invention in the single-cooling mode and the single-heat mode is expanded, that is, the adjustment stroke of the ordinary valve core one-stage (lower stop-upper stop position) is extended to the water-saving valve The core two-stage type (lower stop position - upper stop position + lower stop position - lower stop position) adjusts the stroke.

For the currently used valve core structure, for example, a sealing piece (fixing piece, moving piece) structure, the water-saving valve core of the present invention is: a cold water inlet hole on the fixed piece when the control handle is placed in the single cooling mode. Between the water outlet holes, through the communication of the upper passage of the moving piece, the cold water inlet hole communicates with the water outlet hole, so that the water saving valve core is in a single cold mode critical state; when the control handle is placed in the single heat mode, the fixed position is fixed. Between the hot water inlet hole and the water outlet hole on the sheet, the hot water inlet hole communicates with the water outlet hole through the communication of the upper passage of the moving piece, so that the water saving valve core is in a single heat mode critical state (or saving state/spool saving) status).

The single-handle double-saving water-saving valve core made of the above structure, for example, the ceramic sealing piece single-handle double-saving water-saving valve core, the main components thereof are a control handle, a ceramic fixing piece and a ceramic moving piece. Wherein, the ceramic fixing piece is provided with a hot water inlet hole, a cold water inlet hole and a water outlet hole, and the ceramic moving piece is provided with a passage. The following is a list of typical conditions of the water-saving spool of the present invention: when the control handle is placed in the single-cooling mode adjustment region, the passage on the ceramic rotor communicates the cold inlet hole on the ceramic stator with the water outlet, and the water-saving spool is in the single-cool mode. The open state, the flow rate is adjustable; the single cold mode adjustment area is divided into a single cold mode large flow adjustment area, a single cold mode critical state, and a single cold mode small flow adjustment area: (1) when the control handle is placed in a single cold mode large flow rate In the adjustment area, the passage on the ceramic moving piece connects the cold water inlet hole on the ceramic fixing piece with the water outlet hole, and the water saving valve core is in a single cooling mode with a large flow opening state, and the flow rate is greater than the critical state flow rate and adjustable; (2) when the control handle The single cooling mode is placed in the stop position, and the passage on the ceramic moving piece connects the cold water inlet hole on the ceramic fixing piece with the water outlet hole, and the water saving valve core is in a single cold mode critical state, and the flow rate is a specific flow value of the critical state flow; 3) When the control handle is placed in the single-cooling mode small flow adjustment area, the passage on the ceramic moving piece connects the cold water inlet hole on the ceramic fixing piece with the water outlet hole, and the water saving valve core Single cooling mode, small flow opening state, the flow rate is smaller than the critical state flow rate and adjustable; when the control handle is placed in the single heat mode adjustment area, the passage on the ceramic moving piece connects the hot water inlet hole on the ceramic fixing piece with the water outlet hole, the water saving valve The core is in the single-heat mode open state, and its flow rate is adjustable; the single-heat mode adjustment area is divided into a single-heat mode large flow adjustment area, a single-heat mode critical state, and a single-heat mode small flow adjustment area: (4) when the handle is placed Single heat mode large flow adjustment area, the passage on the ceramic moving piece connects the hot water inlet hole on the ceramic fixing piece with the water outlet hole, and the water saving valve core is in a single heat mode large flow opening state, and the flow rate is larger than the critical state flow rate and adjustable; 5) When the control handle is placed in the single thermal mode, the channel on the ceramic moving piece connects the hot water inlet hole on the ceramic fixing piece with the water outlet hole, and the water saving valve core is in a single heat mode critical state, and the flow rate is a critical state flow. Specific flow value; (6) When the handle is placed in the single-heat mode small flow adjustment area, the passage on the ceramic rotor will heat the water inlet and outlet on the ceramic stator Connected, the water-saving spool is in a single-heat mode with a small flow opening state, and its flow rate is smaller than the critical state flow rate and adjustable; when the control handle is placed in the hot-hot mixing mode adjustment area, the passage on the ceramic rotor piece will make the water outlet hole and the cold inlet on the ceramic fixed piece The water hole and the hot water inlet hole are simultaneously connected, the water saving valve core is in the hot and cold mixed mode, and the flow rate is adjustable; (7) when the control handle is placed in the hot and cold mixing mode, the stop position (or the middle position of the stop position in the hot and cold mixed mode) The water outlet hole on the ceramic fixing piece is not connected with the cold water inlet hole and the hot water inlet hole, and the water saving valve core is closed.

The foregoing main scheme of the present invention and its various further alternatives can be freely combined to form a plurality of schemes, all of which can be adopted and claimed in the present invention: as in the present invention, each non-conflicting selection (for example, selecting 3, 4, 5, and A) , B, C are conflicting choices, can not be combined with each other, but can only be combined with other main schemes or selections), or arbitrarily combined with the main scheme, etc., after those skilled in the art understand the scheme of the present invention It is obvious from the prior art and common general knowledge that there are various combinations, which are all technical solutions to be protected by the present invention, and are not exhaustive.

The beneficial effects of the present invention are mainly embodied in:

(1) Set the critical state of the spool to separate large flow and small flow. By setting the critical state and dividing the water-saving spool flow regulating area into a large flow regulating area (greater than the critical state flow) and a small flow regulating area (less than the critical state flow), it is convenient for the water user to select an appropriate flow regulating area or a critical state, which is advantageous for conserve water.

(2) Convenient operation method, the operation of the water-saving valve core to put the control handle into the critical state (saving state), similar to the operation of the ordinary valve core to put the control handle into the closed state, the operation method is simple and quick. Increase the handle to adjust the stroke to help regulate the flow. The one-stage adjustment stroke of the ordinary spool control handle is extended to the two-stage adjustment stroke of the water-saving spool, and the flow adjustment of the control handle is more accurate and convenient due to the adjustment stroke expansion.

(3) Take into account the operation method of the ordinary spool, and retain the advantages of the ordinary spool. The water-saving spool adopts a similar opening and closing operation method as the ordinary spool, and retains the advantages of the ordinary spool, for example, the hot and cold water adjustment is convenient and flexible, the control handle is smooth and light, and the valve core has a long service life. Compared with the present invention: there is a valve core which is provided with a segmented gear position by using an elastic element. When the multi-position valve spool is operated, it is necessary to press the gear element elastic force to perform the conversion between the gear positions, The smooth and light operation of the handle is lost, and the life of the spool is shortened.

(4) Conducive to the normal use of water heaters. For the hot and cold water system using the gas water heater as the heat source, setting the flow value of the critical state of the water-saving spool single heat mode to be smaller than the minimum closing flow value of the gas water heater, not only can save the hot water but also is particularly beneficial for the normal use of the gas water heater. The operation mode is as follows: (a) If hot water is not required during the use of hot water, the control handle can be placed in a small flow adjustment area (or critical state). On the one hand, since the small flow regulating area is smaller than the critical state flow, that is, less than the minimum closing flow rate of the gas water heater, the gas water heater does not consume gas when it is turned off; on the other hand, since the water saving valve core is in the small flow regulating area (or critical state), Hot and cold water systems (hot water pipes and internal storage of gas water heaters) still have small flow of hot water flowing out to meet short-term hot water demand. (b) When the hot water is turned off, the control handle is placed in the small flow adjustment area (or critical state) from the large flow adjustment area in advance, the large flow hot water is switched to the small flow hot water, and finally the control handle is controlled by the small flow adjustment area. (or critical state) placed in the off state. The above operation can not only save hot water and gas, but also effectively prevent scaling of the inner wall of the gas water heater. (The water heater is turned off in the state of saving the spool, the internal hot water continues to flow out for use, and the cold water enters the water heater and lowers the temperature of the water heater) Conducive to maintaining the normal heat transfer efficiency of the water heater and extending the service life.

The following non-limiting examples are illustrative of the invention.

Example 1:

A valve device comprising a valve device that controls a fluid passage state when a fluid passes, and an operating mechanism that achieves the aforementioned control by operating in an operating region thereof, the valve device having a first fluid inlet end, a second fluid inlet end, and a fluid outlet The operating area of the operating mechanism is divided into a mixing degree adjusting area for adjusting the mixing degree of the first fluid and the second fluid, and a flow regulating area for adjusting the flow rate of the fluid outlet end in the mixing degree adjusting area, and the mixing degree adjusting area is divided into a fluid outlet. a first fluid region where only the first fluid exits, and a second fluid region where only the second fluid exits the fluid outlet end, and an intermediate region between the first fluid region and the second fluid region, the fluid outlet end of the intermediate region No fluid is present, or a mixed region of the first fluid and the second fluid mixed fluid is discharged from the fluid outlet, and the flow rate of the minimum stop of the flow regulating region of the first and second fluid regions is greater than zero, and in the mixed region The flow rate of the minimum stop of the flow regulation area is equal to zero. The first fluid inlet end, the second fluid inlet end, and the fluid outlet end of the valve device are integrated into a single device.

Optionally, the valve device comprises a sealing piece composed of a fixing piece and a moving piece, and the operating mechanism is a control handle for controlling the sliding sliding of the movable piece relative to the fixed piece. The fixed piece is provided with a separated first fluid inlet end, a second fluid inlet end and a fluid. At the outlet end, the movable piece is provided with a passage for communicating the first fluid inlet end and the fluid outlet end, or the second fluid inlet end and the fluid outlet end, or the first fluid inlet end when the rotor is sealingly sliding relative to the fixed piece. a second fluid inlet end and a fluid outlet end; the first fluid inlet end and the fluid outlet end are communicated through the passage on the rotor when the handle is in the first fluid region, and the second fluid inlet end is in the second fluid region when the handle is in the second fluid region And the fluid outlet end communicates with the passage on the moving piece. When the control handle is in the mixing area, the first fluid inlet end, the second fluid inlet end and the fluid outlet end communicate through the passage on the moving piece; when the control handle is adjusted in the flow regulating area, the movement is controlled The area of the overlap between the channel on the sheet and the first fluid inlet end, the second fluid inlet end and the fluid outlet end changes; the handle is in the Or the minimum stop of the flow regulating region of the two-fluid region, the first or second fluid inlet end and the fluid outlet end communicate through the passage on the moving piece, and at the minimum stop position of the flow regulating region of the mixed region, the first and second Both fluid inlet ends are disconnected from the fluid outlet end.

Further, the valve device is a single-handle double-spool valve, the operating mechanism is a control handle, and the minimum stop position of the control handle in the flow regulation area is a lower stop; the control handle is a single-heat of the spool mode in the first fluid region. The mode is a single cooling mode of the spool mode in the second fluid region, and a hot and cold mixing mode of the spool mode in the mixed region; the valve device has an open state in which the fluid outlet end flow is greater than zero to the spool state, and the fluid outlet end The flow rate is equal to zero, which is the closed state of the spool state; when the control handle is in the lower stop position of the single cooling mode, the flow rate at the fluid outlet end is greater than zero, and the spool is in the single cold mode critical state or saves the state, when the control handle is in a single heat When the bottom stop of the mode, the flow rate at the fluid outlet end is greater than zero, and the spool is in a single thermal mode critical state or saved state. The maximum stop position of the handle in the flow adjustment area is the upper stop position, and the adjustment area is between the upper stop position and the lower stop position; when the control handle is in the bottom stop position of the hot and cold mixing mode, the spool is closed, from the single cooling mode The bottom stop position to the single cold mode upper stop position is the single cold mode large flow adjustment area. The stop position from the single cold mode to the cold and hot mix mode is the single cold mode small flow adjustment area; from the single thermal mode to the stop position The single-heat mode upper stop position is a single-heat mode large-flow adjustment area, and the single-heat mode low-flow adjustment area is from the stop position in the single-heat mode to the cold-hot mixing mode.

Preferably, a single-handle double-water-saving spool has a single-heat mode, a single-cool mode, and a hot-hot mixing mode, and the control handle is placed in a top stop position (ie, a maximum stop of the flow adjustment area), and an adjustment area. (ie between the maximum and minimum stop of the flow regulation zone) and the lower stop (ie the minimum stop of the flow regulation zone), the spool state has an open state (ie fluid flow end flow greater than zero) and a closed state (ie fluid) The outlet flow rate is equal to zero. When the control handle is placed in the single cold mode, the water saving spool is in the single cold mode critical state (or saved state), and the water saving spool is placed when the control handle is placed in the single thermal mode. Single thermal mode critical state (or saving state), when the control handle is placed in the cold and hot mixing mode, the water-saving spool is closed, and the single-cold mode stop position to the single-cool mode upper stop position is the water-saving spool single Cold mode large flow adjustment area, from stop position in single cooling mode to stop position in hot and cold mixing mode, the water saving spool single cooling mode small flow adjustment area, from single heating mode to single heating mode Stopping the single valve body is heat saving mode flow regulating large area, single bit from the stop mode to stop the cold heat mixed mode bit is set to single-spool saving mode small heat flow regulating region.

In the present embodiment, the critical state means that the water-saving spool is in a certain open state (corresponding to a specific open state in which the spool is located when the normal spool is placed in a certain position of the flow regulating region). Thus, the adjustment area of the water-saving spool in the single cooling mode of the present invention is divided into a large flow adjustment area and a small flow adjustment area, that is, from the single cold mode to the single cold mode, the upper stop is the water saving spool single cold mode large flow. (greater than the critical state flow) adjustment area, from the stop position in the single cooling mode to the stop position in the hot and cold mixing mode, the water saving spool single cooling mode small flow (less than the critical state flow) adjustment area. Similarly, the adjustment area of the water-saving spool in the single-heat mode of the present invention is divided into a large flow adjustment area and a small flow adjustment area, that is, from the single-heat mode stop position to the single-heat mode upper stop position, the water-saving spool single-heat mode large flow rate (greater than the critical state flow) adjustment area, from the single-heat mode stop position to the cold-hot mixing mode, the stop position is the water-saving spool single-cooling mode small flow rate (less than the critical state flow) adjustment area. At the same time, the regulating stroke of the control valve of the water-saving valve core of the invention in the single-cooling mode and the single-heat mode is expanded, that is, the one-step adjustment stroke of the ordinary valve core is extended to the two-stage adjustment stroke of the water-saving valve core.

In this embodiment, the flow rate value of the water-saving spool in a critical state can be set according to factors such as the type of the water-saving spool, the mode of use, and the water-saving requirement. For example, for a kitchen faucet of the DN15 specification, the maximum flow rate of the single-handle double-water-saving spool is 20 liters/min, and the critical state flow value is set to 5 liters/min. Then, the water-saving spool of this embodiment is adjusted. Area > 5 liters / minute, small flow adjustment area < 5 liters / minute.

In this embodiment, both the single cold mode stop position and the single heat mode stop position are set to a critical state, which is beneficial to save cold water and hot water. When using water, firstly, according to the water consumption, the control handle is placed into the small flow adjustment area, the large flow adjustment area or the critical state, and then the handle is fine-tuned according to the immediate water condition (the adjustment stroke is extended to facilitate the control handle to finely adjust the water volume), which satisfies the water demand. Also save water.

Example 2:

This embodiment is similar to Embodiment 1, except that in the present embodiment, the single-heat mode (such as the first fluid region) has a critical state specific flow value of 3 liters/min, and the single-cool mode (such as the second fluid region) is critical. The status-specific flow value is still 5 liters/min.

A thermal fluid supply system comprising the aforementioned valve device, and one or two thermal fluid supply devices (e.g., various water heaters), the hot fluid outlets of each of the thermal fluid supply devices exclusively and the first and/or second fluids of the valve device The inlet end (such as a water heater connected to one of the water inlet holes, or two water heaters each connected to a water inlet hole, or a water heater simultaneously connecting two water inlet holes) is connected and controlled by the operating mechanism of the valve device (direct or indirect control) Each thermal fluid supply device turns its thermal fluid supply on or off, the thermal fluid supply having a minimum flow that shuts off its heating system, the flow of the first and/or the two fluid inlet ends of the valve device being lower than the minimum flow The hot fluid supply will shut down its heating system, and the operating mechanism of the valve device will have a flow rate greater than zero but low at the first and/or second fluid inlet end when the flow control region of the first and/or second fluid region is at a minimum stop. The thermal fluid supply connected thereto is closed to the lowest flow rate of its heating system. Preferably, the first and / or two fluid inlet ends of the valve means are hot fluid inlet ends, and the flow rate of the minimum stop of the flow regulating region of the first and / or two fluid zones of the operating mechanism is greater than zero or less than 3 liters / minute .

In this embodiment, the single-heat mode critical state flow value is set to 3 liters/min, which is smaller than the common domestic gas water heater minimum closing flow value, which not only saves hot water but also is particularly beneficial for the normal use of the gas water heater. The operation mode is as follows: (a) In the process of using hot water, if a large flow of hot water is not required, the control handle can be placed in a single heat mode small flow adjustment area or a critical state. On the one hand, since the flow value of the small flow regulating area or the critical state is smaller than the minimum closing flow rate of the gas water heater, the gas water heater is turned off without consuming gas; on the other hand, since the water saving valve core is in the single heat mode small flow regulating area or critical state The hot and cold water system (hot water pipeline and gas water heater internal storage) still has a small flow of hot water outflow to meet the short-term hot water demand. (b) When the hot water is turned off, the control handle is placed in a small flow of hot water or a critical state in advance by a large flow of hot water, and finally the control handle is placed in a closed state by a small flow of hot water or a critical state. The above operation can not only save hot water and gas, but also effectively prevent scaling of the inner wall of the gas water heater (the internal hot water continues to flow out after the water heater is turned off, and the cold water enters the water heater and lowers the temperature of the inner wall of the water heater), which is particularly beneficial for maintaining the water heater. Normal heat transfer efficiency and long life.

Example 3:

As shown in FIG. 1 to FIG. 9 , the embodiment is basically the same as the first embodiment. More specifically, the embodiment is a ceramic single-handle double-joint water-saving valve core, and the valve core mode has a single heat mode, a single cooling mode, and hot and cold. In the hybrid mode, the handle is placed in the upper stop position, the adjustment area and the lower stop position, and the spool state has an open state and a closed state. When the control handle is placed in the single cold mode, the water saving spool is in the single cold mode critical state. State, when the control handle is placed in the single-heat mode, the water-saving spool is in the single-heat mode critical state, and the water-saving spool is closed when the control handle is placed in the cold-hot mixing mode, and the stop is from the single-cool mode. The single-cooling mode upper stop position is the water-saving spool single-cooling mode large flow adjustment area, from the single cooling mode to the cold-hot mixing mode, the stop position is the water-saving spool single-cooling mode small flow adjustment area, from single-heat mode The stop position to the single thermal mode is the water-saving spool single-heat mode large flow adjustment area. The stop position from the single-heat mode to the cold-hot mixing mode is the water-saving spool single-heat mode small flow adjustment area.

1 is a schematic cross-sectional view of the fixing piece 1, in which the upper left side is a cold water inlet hole 11, the upper right side is a hot water inlet hole 12, and the lower part is a water outlet hole 13. 2 is a schematic cross-sectional view of the rotor 2, and in the middle of the figure is a channel 21. Compared with the single-handle double common valve core of the ceramic piece, the shape of the cold water inlet hole 11 and the hot water inlet hole 12 on the fixing piece 1 in this embodiment is changed, and the rest of the structure is the same.

Since the shape of the cold water inlet hole 11 and the hot water inlet hole 12 on the fixing piece 1 of the present embodiment extends downward (in the figure), when the control handle of the embodiment is placed in the single cold mode, the fixing piece 1 is fixed. Between the upper cold water inlet hole 11 and the water outlet hole 13, through the communication of the passage 21 on the movable piece 2, the cold water inlet hole 11 and the water outlet hole 13 communicate with each other, so that the present embodiment is in a single cooling mode critical state, see the figure. 3; when the control handle of the embodiment is placed in the single-heat mode stop position, between the hot water inlet hole 12 and the water outlet hole 13 on the fixed piece 1, through the communication of the passage 21 on the movable piece 2, the above-mentioned heat advance The water hole 12 communicates with the water outlet hole 13 to make the present embodiment in a single thermal mode critical state, see FIG.

In this embodiment, the control handle is placed in the stop position in the hot and cold mixing mode, and the water outlet hole 13 on the fixed piece 1 is not in communication with the cold water inlet hole 11 and the hot water inlet hole 12, and the water saving valve core is in a closed state, see Figure 5.

In this embodiment, the stop position from the single cold mode to the single cold mode upper stop position is the water-saving spool single-cooling mode large flow adjustment area, see FIG. 6 , from the single cold mode stop position to the cold heat mixed mode stop position For the water-saving spool single-cooling mode small flow adjustment area, see Figure 7; from single-heat mode stop to single-heat mode, the upper stop is the water-saving spool single-heat mode large flow adjustment area, see Figure 8, from single-heat mode The stop position from the bottom stop to the hot and cold mixing mode is the water-saving spool single-heat mode small flow adjustment area, see Figure 9. The arrows in the figure show the direction of movement of the rotor 2 during flow adjustment.

Example 4:

As shown in FIG. 10 to FIG. 14, the present embodiment is similar to the third embodiment except that the cold water inlet hole 11, the hot water inlet hole 12 and the water outlet hole 13 on the fixed piece 1 are changed; Second, there is a change in the channel 21 on the moving piece 2. Fig. 10 is a schematic cross-sectional view of the fixing piece 1, in which the upper left side is the cold water inlet hole 11, and the upper part of the upper right side is the water inlet hole 1 and the lower part is the water outlet hole 13. Compared with the single-handle double common valve core of the ceramic piece, the shape of the cold water inlet hole 11 and the hot water inlet hole 12 is similar to that of the ordinary valve core, and the cold water inlet hole 11 and the hot water inlet hole 12 are different from the ordinary valve core. In the figure, it has a "eight-shaped" distribution; compared with the single-handle double valve of the ceramic piece, the shape of the upper part of the water outlet hole 13 (in the figure) is reduced. Fig. 11 is a schematic cross-sectional view of the movable piece 2, and the shape of the upper portion of the passage 21 (in the figure) is reduced as compared with the single-handle double common valve core of the ceramic piece.

In the present embodiment, since the position of the cold water inlet hole 11 and the hot water inlet hole 1-2 on the fixed piece 1 is inclined downward (in the drawing), when the control handle of the embodiment is placed in the single cold mode, the stop position is set. Between the cold water inlet hole 11 and the water outlet hole 1 on the fixed piece 1, the cold water inlet hole 1-1 communicates with the water outlet hole 13 through the communication of the passage 21 on the movable piece 2, so that the embodiment is in a single The cold mode critical state, see FIG. 12; when the control handle of the embodiment is placed in the single thermal mode, the hot water inlet hole 12 and the water outlet hole 13 on the fixed piece 1 pass through the passage 21 of the movable piece 2 For the communication, the hot water inlet hole 12 and the water outlet hole 13 communicate with each other, so that the present embodiment is in a single heat mode critical state, see FIG.

In this embodiment, the control handle is placed in the middle position of the stop position in the hot and cold mixing mode, and the water outlet hole 13 on the fixed piece 1 is not in communication with the cold water inlet hole 11 and the hot water inlet hole 12, and the water saving valve core is closed. State, see Figure 14.

Example 5:

As shown in FIG. 15 to FIG. 23, the embodiment is basically the same as the first embodiment. More specifically, the embodiment is a ceramic single-handle double-joint water-saving valve core, and the spool mode has a single heat mode, a single cooling mode, and hot and cold. In the hybrid mode, the handle is placed in the upper stop position, the adjustment area and the lower stop position, and the spool state has an open state and a closed state. When the control handle is placed in the single cold mode, the water saving spool is in the single cold mode critical state. State, when the control handle is placed in the single-heat mode, the water-saving spool is in the single-heat mode critical state, and the water-saving spool is closed when the control handle is placed in the middle position of the stop position in the hot-hot mixing mode, from the single-cool mode From the bottom stop position to the single cold mode, the upper stop position is the water-saving spool single-cooling mode large flow adjustment area. The stop position from the single-cool mode to the cold-hot mixing mode is the water-saving spool single-cooling mode small flow adjustment area, from the single In the hot mode, the stop position to the single thermal mode is the water-saving spool single-heat mode large flow adjustment area. The stop position from the single-heat mode to the cold-hot mixing mode is the water-saving spool single-heat mode small flow adjustment area.

Fig. 15 is a schematic cross-sectional view of the fixing piece 1, in which the upper left side is a cold water inlet hole 11, the upper right side is a hot water inlet hole 12, and the lower part is a water outlet hole 13. Figure 16 is a schematic cross-sectional view of the rotor 2, in the middle of which is the passage 21. Compared with the single-handle double common valve core of the ceramic piece, the cold water inlet hole 11, the hot water inlet hole 12 and the water outlet hole 13 on the fixed piece 1 are the same as the ordinary valve core, and the passage 21 on the movable piece 2 and the ordinary valve core The same as the single-handle double common valve core of the ceramic piece, in the single cooling mode, the single-cold mode stop position and the single-heat mode stop position are different from the ordinary valve core, wherein the single cold mode stops the position (Fig. Medium) upper left offset, as shown in Fig. 17, in the single thermal mode, the stop is shifted to the upper right, as shown in Fig. 18; however, in the present embodiment, the middle position of the stop in the cold-hot mixing mode is not offset, and the ordinary valve The core is consistent, as shown in Figure 19.

In this embodiment, since the stop position is shifted to the upper left (in the figure) in the single cooling mode, when the control handle is placed in the single cold mode, the cold water inlet hole 11 and the water outlet hole on the fixed piece 1 are Between 13 and 13, through the communication of the channel 21 on the movable piece 2, the cold water inlet hole 11 and the water outlet hole 13 communicate with each other, so that the present embodiment is in a single cold mode critical state, see Fig. 17; likewise, due to the single heat mode The position is shifted to the upper right (in the figure), and when the control handle is placed in the single thermal mode stop position, between the hot water inlet hole 12 and the water outlet hole 13 on the fixed piece 1, through the passage 21 of the movable piece 2 For the communication function, the above-mentioned hot water inlet hole 12 communicates with the water outlet hole 13 to make the present embodiment in a single heat mode critical state, see FIG. .

In this embodiment, the control handle is placed in the middle position of the stop position in the hot and cold mixing mode, and the water outlet hole 13 on the fixed piece 1 is not in communication with the cold water inlet hole 11 and the hot water inlet hole 12, and the water saving valve core is closed. State, see Figure 19.

In this embodiment, the stop position from the single cooling mode to the single cooling mode upper stop position is the water saving spool single cooling mode large flow adjustment area, see FIG. 20, from the single cold mode stop position to the cold and hot mixed mode stop position The middle position is the water-saving spool single-cooling mode small flow adjustment area, see Figure 21; from the single-heat mode to the single-heat mode, the upper stop is the water-saving spool single-heat mode large flow adjustment area, see Figure 22; In the hot mode, the stop position to the hot and cold mixing mode is the middle position of the stop in the water-saving spool single-heat mode small flow adjustment area, see Figure 23. The arrows in the figure show the direction of movement of the rotor 2 during flow adjustment.

In this embodiment, the manner of shifting the stop position in the single-cool mode and the stop position in the single-heat mode is: separately or simultaneously setting a limit device on the movable piece and the fixed piece; respectively or simultaneously on the movable piece and the valve A limiting element device is arranged on the core casing; a limiting device is arranged on the control handle and the valve core casing respectively; or a limit device is arranged on the control handle and the faucet casing respectively; respectively or simultaneously at the faucet handle A method of setting a limit unit on the upper and the faucet casing.

Example 6

Referring to Figure 24, this embodiment is substantially identical to Embodiments 1, 2, except that the first fluid inlet end, the second fluid inlet end, and the fluid outlet end of the valve device are separately disposed in two or three single devices. Inside. Preferably, as shown in this embodiment, the fluid outlet end and the operating mechanism are integrated together at the operating end, and the operating mechanism performs on, off and flow control respectively on the first fluid inlet end and the second fluid inlet end of the distal end. Generally, the first fluid inlet end and the second fluid inlet end are respectively electrically controlled valves, and the fluids of the two are collected to the fluid outlet end, and the operating mechanism of the operating end is an electronic control device, which passes through the control line or wirelessly (dotted line in the figure). On, off, and flow control are performed on the first fluid inlet end and the second fluid inlet end, respectively.

The above is only the preferred embodiment of the present invention, and is not intended to limit the present invention. Any modifications, equivalents, improvements, etc., which are included in the spirit and principle of the present invention, should be included in the present invention. Within the scope of protection.

11‧‧‧ cold water inlet

12‧‧‧Hot water inlet

13‧‧‧Water outlet

2‧‧‧moving

21‧‧‧ channel

Fig. 1 is a schematic cross-sectional view showing a water-saving valve core in the third embodiment. Fig. 2 is a schematic cross-sectional view showing a water-saving valve core in the third embodiment. Fig. 3 is a schematic cross-sectional view showing a water saving valve body in the third embodiment. Fig. 4 is a schematic cross-sectional view showing the water-saving valve core of the third embodiment. Fig. 5 is a schematic cross-sectional view showing a water saving valve body in the third embodiment. Fig. 6 is a schematic cross-sectional view showing a water saving valve body in the third embodiment. Fig. 7 is a schematic cross-sectional view showing a water-saving valve core in the third embodiment. Fig. 8 is a schematic cross-sectional view showing a water-saving valve core in the third embodiment. Fig. 9 is a schematic cross-sectional view showing a water saving valve body in the third embodiment. Fig. 10 is a schematic cross-sectional view showing a water saving valve body in the fourth embodiment. Fig. 11 is a schematic cross-sectional view showing a water-saving valve core in the fourth embodiment. Fig. 12 is a schematic cross-sectional view showing a water-saving valve core of the fourth embodiment. Fig. 13 is a schematic cross-sectional view showing a water saving valve body in the fourth embodiment. Fig. 14 is a schematic cross-sectional view showing a water saving valve body in the fourth embodiment. Fig. 15 is a schematic cross-sectional view showing a water-saving valve element in the fifth embodiment. Fig. 16 is a schematic cross-sectional view showing a water-saving valve element in the fifth embodiment. Fig. 17 is a schematic cross-sectional view showing a water-saving valve body in the fifth embodiment. Fig. 18 is a schematic cross-sectional view showing a water-saving valve element in the fifth embodiment. Fig. 19 is a schematic cross-sectional view showing a water-saving valve body in the fifth embodiment. Fig. 20 is a schematic cross-sectional view showing a water saving valve body in the fifth embodiment. Fig. 21 is a schematic cross-sectional view showing a water-saving valve element in the fifth embodiment. Fig. 22 is a schematic cross-sectional view showing a water saving valve body in the fifth embodiment. Fig. 23 is a schematic cross-sectional view showing the water-saving valve core of the fifth embodiment. Fig. 24 is a flow chart showing the flow of the apparatus of the sixth embodiment.

Claims (27)

A valve device comprising a valve device that controls a fluid passage state when a fluid passes, and an operating mechanism that achieves the aforementioned control by operating in an operating region thereof, the valve device having a first fluid inlet end, a second fluid inlet end, and a fluid outlet The operating area of the operating mechanism is divided into a mixing degree adjusting area for adjusting the mixing degree of the first fluid and the second fluid, and a flow regulating area for adjusting the flow rate of the fluid outlet end in the mixing degree adjusting area, and the mixing degree adjusting area is divided into a fluid outlet. a first fluid region where only the first fluid exits, and a second fluid region where only the second fluid exits the fluid outlet end, and an intermediate region between the first fluid region and the second fluid region, the fluid outlet end of the intermediate region No fluid, or a mixed region of the first fluid and the second fluid mixed fluid for the fluid outlet, wherein the flow rate of the minimum stop of the flow regulating region of the first and second fluid regions is greater than zero. And the flow rate of the minimum stop in the flow regulation area of the mixed zone is equal to zero. The valve device of claim 1, wherein the first fluid inlet end, the second fluid inlet end and the fluid outlet end of the valve device are integrated into a single device, or the first fluid inlet end, The two fluid inlet end and the fluid outlet end are separately disposed in two or three single devices. The valve device according to claim 1, wherein the valve device comprises a sealing piece formed by a fixing piece and a moving piece, and the operating mechanism is a control handle for controlling the sealing and sliding of the moving piece relative to the fixed piece, and the fixing piece is provided with a separation. a first fluid inlet end, a second fluid inlet end and a fluid outlet end, the movable piece is provided with a passage for communicating the first fluid inlet end and the fluid outlet end when the movable piece is slidingly sliding relative to the fixed piece, or the second a fluid inlet end and a fluid outlet end, or a first fluid inlet end, a second fluid inlet end, and a fluid outlet end; when the handle is in the first fluid region, the first fluid inlet end and The fluid outlet end communicates through a passage on the moving piece. When the control handle is in the second fluid region, the second fluid inlet end and the fluid outlet end communicate through the passage on the moving piece. When the control handle is in the mixing area, the first fluid inlet end and the second The fluid inlet end and the fluid outlet end communicate with each other through a passage on the rotor; when the control handle is adjusted in the flow adjustment region, the area of the overlap between the passage on the rotor and the first fluid inlet end, the second fluid inlet end and the fluid outlet end changes; When the shank is at the minimum stop position of the flow regulating region of the first or second fluid region, the first or second fluid inlet end and the fluid outlet end communicate through the passage on the rotor, and at the minimum stop of the flow regulating region of the mixed region The first and second fluid inlet ends are both disconnected from the fluid outlet end. The valve device of claim 3, wherein the opposite ends of the first fluid inlet end and the second fluid inlet end respectively have an extension bent toward the fluid outlet end, and the control handle is When the flow adjustment region of the first or second fluid region is at a minimum stop position, the extension portion and the fluid outlet end of the first or second fluid inlet end communicate through the passage on the moving piece, and the passage on the moving piece and the extension become larger with the adjustment value. The area of the overlapping area of the portion is increased, and the area of the overlapping area is reduced as the control handle is adjusted from the first or second fluid area to the other fluid area. The valve device of claim 3, wherein the opposite ends of the first fluid inlet end and the second fluid inlet end are inclined toward the fluid outlet end, respectively, and the two are in a "eight-shaped" distribution. When the control handle is at the minimum stop position of the flow regulating region of the first or second fluid region, the region of the first or second fluid inlet end that is relatively close to the fluid outlet end and the fluid outlet end communicate through the passage on the moving piece, and the adjustment value becomes larger. The area of the overlapping area of the channel on the moving piece and the area is increased, and the area of the overlapping area is reduced as the control handle is adjusted from the first or second fluid area to the other fluid area. The valve device of claim 3, wherein the first fluid inlet end and the second fluid inlet end are at a distance from the fluid outlet end, but the handle is in the first or second fluid The distance between the channel on the moving piece and the first or second fluid inlet end of the region is closer than the distance between the channel on the moving piece and the first or second fluid inlet end when the control handle is in the mixed region, and the handle is at the first or When the flow control region of the two-fluid region has a minimum stop position, the first or second fluid inlet end and the fluid outlet end communicate through the passage on the rotor, and the overlap of the passage on the rotor and the first or second fluid inlet end becomes larger as the adjustment value becomes larger. The area of the area is increased, and the area of the overlap area is reduced as the control handle is adjusted from the first or second fluid area to the other fluid area. The valve device according to claim 6 is characterized in that: the distance between the passage on the movable piece and the first or second fluid inlet end of the control handle in the first or second fluid region by the limiting device is The valve device includes a casing and an outer handle, and the valve body includes a valve body and a valve body casing and a control handle, and the outer handle is located closer to the first or second fluid inlet end than the control handle is in the mixing region. Connected to and operated by the control handle, the valve core comprises a sealing piece composed of a fixing piece and a moving piece, the limiting element device is disposed on the moving piece and/or the fixed piece, or the limiting element device is disposed on the moving piece and/or The spool housing, or the limiting device is disposed on the handle and/or the spool housing, or the limiting device is disposed on the handle and/or the housing, or the limiting device is disposed on the external handle and/or On the outer casing. The valve device of claim 1, wherein the first and/or the two fluid inlet ends of the valve device are hot fluid inlet ends, and the operating mechanism is in a flow regulating region of the first and/or second fluid regions. The minimum stop flow is greater than zero less than 3 liters/minute, or greater than 3 less than 5 liters/minute, or greater than 5 liters/minute. The valve device according to claim 1 or 3, wherein the valve device is a single-handle double valve core, the operating mechanism is a control handle, and the minimum stop position of the control handle in the flow regulating region is a lower stop position; The handle is a single-heat mode of the spool mode in the first fluid region and in the second fluid region In the single-cooling mode of the spool mode, the spool mode is the hot and cold mixing mode in the mixed zone; the valve device has an open state in which the fluid outlet end flow is greater than zero for the spool state, and the fluid outlet end flow is equal to zero for the spool state. State; when the handle is in the bottom stop position of the single cold mode, the flow at the fluid outlet end is greater than zero, at which time the spool is in a single cold mode critical state or saved state, when the handle is in the bottom stop position of the single heat mode, the fluid The outlet end flow is greater than zero, at which point the spool is in a single thermal mode critical state or saved state. The valve device according to claim 9 is characterized in that: the maximum stop position of the control handle in the flow regulation area is the upper stop position, and the adjustment position is between the upper stop position and the lower stop position; When the bottom stop of the mode, the spool is closed, from the single cold mode to the single cold mode, the single stop mode is the single cold mode large flow adjustment area, from the single cold mode stop position to the cold and hot mix mode stop position. The single-cold mode small flow adjustment area; from the single-heat mode to the single-heat mode, the upper stop is the single-heat mode large flow adjustment area, from the single-heat mode stop to the hot-hot mixed mode, the stop is single-heat mode. Small flow adjustment area. The valve device of claim 1, characterized in that: the flow rate of the maximum stop position of the flow regulating region of the first fluid region of the operating mechanism, and the maximum stop of the flow regulating region of the second fluid region The traffic is not equal. A thermal fluid supply system comprising the valve device of any one of claims 1 to 11 and one or two thermal fluid supply devices having a heating system for heating the fluid therein, the heat of each thermal fluid supply device The fluid outlets are exclusively in communication with the first and/or two fluid inlet ends of the valve device, and the thermal fluid supply device is controlled to open or close its hot fluid supply by the operating mechanism of the valve device, the thermal fluid supply device having a heating shutdown The lowest flow rate of the system, when the flow rate of the first and/or the two fluid inlet ends of the valve device is lower than the minimum flow rate, the communicating thermal fluid supply device will shut down its heating system, characterized in that the operating mechanism of the valve device is in the first / or the second fluid area The flow rate of the first and/or second fluid inlet end is greater than zero when the flow adjustment zone is at a minimum stop, but below the minimum flow of the heating fluid system that is in communication therewith. A fluid supply system comprising at least one valve device, and a fluid supply device, wherein fluid outlets of the fluid supply device are respectively in communication with fluid inlet ends of the respective valve devices, and control fluid inlet end flow control fluid supply devices according to an operating mechanism of the valve device A fluid supply device, characterized in that the valve device is the valve device of any one of claims 1 to 11, the fluid outlet of the fluid supply device is respectively connected to the first and/or second fluid inlet end of the valve device . The fluid supply system of claim 13, wherein the fluid supply device has a minimum stop for identifying a flow regulating region of each of the valve devices in the first and/or second fluid region of the operating mechanism. The identification device of the flow signal, and the control device that controls the internal operation thereof according to the recognition result of the identification device. The fluid supply system of claim 13 or 14, wherein the fluid supply device is a thermal fluid supply device having a heating system for heating the internal fluid thereof, the hot fluid outlet of the thermal fluid supply device and the valve The first and/or two fluid inlet ends of the device are in communication and the thermal fluid supply to the first or second fluid inlet end flow control hot fluid supply is controlled by an operating mechanism of the valve device. The utility model relates to a single-handle double water-saving valve core. The spool mode has a single cooling mode, a single heat mode and a hot and cold mixing mode, and the control handle is placed in an adjustment area and a lower stop position, and the spool state has an open state and a closed state, and the characteristics thereof are characterized. Therefore, when the control handle is placed in the single cold mode, the water-saving spool is in the single-cool mode saving state or the critical state, and the water-saving spool is in the single-heat mode saving state or the critical state when the control handle is placed in the single-heat mode. The single handle double water saving valve core as described in claim 16 of the patent application is characterized in that The control handle is placed in the upper position; the water-saving spool is closed when the control handle is placed in the cold-hot mixing mode, and the water-saving spool is from the single-cool mode to the single-cool mode. Cold mode large flow adjustment area, from the single cold mode to the cold and hot mix mode, the stop position is the water-saving spool single-cooling mode small flow adjustment area, from the single-heat mode stop position to the single-heat mode upper stop position is the water-saving valve The core single-heat mode large flow adjustment area, from the single-heat mode stop position to the cold-hot mixing mode, the stop position is the water-saving spool single-heat mode small flow adjustment area. The single-handle double-saving water-saving valve core according to claim 16 or 17, wherein the control handle is placed between the cold water inlet hole and the water outlet hole on the fixed piece when the single-cold mode is placed in the stop position. Through the communication of the upper channel of the moving piece, the cold water inlet hole communicates with the water outlet hole, so that the water saving valve core is in a single cold mode critical state; when the control handle is placed in the single heat mode, the hot water inlet hole on the fixed piece Between the water outlet and the water outlet hole, the hot water inlet hole communicates with the water outlet hole, so that the water-saving valve core is in a single heat mode critical state. The single handle double water-saving valve core according to claim 18, wherein the opposite ends of the hot water inlet hole and the cold water inlet hole respectively have an extension portion bent toward the water outlet hole, and the control portion is controlled. When the handle is stopped in the single heat mode or the single cold mode, the extension portion and the water outlet hole of the hot water inlet hole or the cold water inlet hole communicate with the passage on the moving piece, and the passage on the upper moving piece and the extension with the lower stop position The area of the overlapping area of the part is increased, and the area of the overlapping area is reduced as the control handle is adjusted from the single heating mode or the single cooling mode to the counterpart mode. The single-handle double-saving water-saving valve core according to claim 18, wherein the opposite ends of the hot water inlet hole and the cold water inlet hole are inclined toward the water outlet hole, respectively, and the two are in a "eight-shaped shape". "Distribution, when the control handle is stopped in the single heat mode or the single cooling mode, the area of the hot water inlet or the cold water inlet hole relatively close to the water outlet hole and the water outlet hole communicate with the passage on the moving piece, and with the lower stop position The area of the overlapping area of the upper moving piece and the area is increased, and the overlapping area is reduced as the control handle is adjusted from the single heating mode or the single cooling mode to the counterpart mode. The single-handle double-saving water-saving valve core according to claim 18, wherein the hot water inlet hole and the cold water inlet hole have the same distance from the water outlet hole, but the control handle moves in the single heat mode or the single cooling mode. The distance between the channel on the sheet and the hot water inlet or the cold water inlet hole is closer to the distance between the hot water inlet hole or the cold water inlet hole than the control handle in the mixed area, and the control handle is single heat. When the mode or the single cooling mode is in the stop position, the hot water inlet hole or the cold water inlet hole and the water outlet hole communicate through the passage on the moving piece, and the channel on the upper moving piece and the hot water inlet hole or the cold water inlet hole are connected with the lower stop position. The area of the overlap area is increased, and the area of the overlap area is reduced as the control handle is adjusted from the single heat mode or the single cold mode to the opponent mode. The single-handle double-saving water-saving valve core according to claim 21 is characterized in that: the limit position device makes the control block in the single heat mode or the single cooling mode, the passage on the moving piece and the hot water inlet hole or the cold The distance between the inlet holes is closer than the distance between the passage on the rotor and the hot inlet hole or the cold inlet hole when the control handle is in the mixed area, the valve device includes a casing and an external handle, and the valve body is provided with a valve core and The valve body casing and the control handle are connected and operated by the external handle. The valve core comprises a sealing piece formed by a fixing piece and a moving piece, and the limiting element device is disposed on the moving piece and/or the fixing piece, or is limited to The bit device is disposed on the rotor and/or the spool housing, or the limiting device is disposed on the handle and/or the spool housing, or the limiting device is disposed on the handle and/or the housing, or is limited The unit is disposed on the outer handle and/or the outer casing. The valve device according to claim 18, wherein the water-saving valve core is in a single-heat mode saving state or a critical state, and the flow rate of the hot water inlet hole is greater than or equal to 3 liters/min. A thermal fluid supply system comprising any one of claims 16 to 23 The single-handle double-water-saving spool, and the hot fluid supply device having a heating system for heating the fluid therein, the hot fluid outlet of the hot fluid supply device is in communication with the hot water inlet of the single-handle double-water-saving spool, and The hot fluid supply device controls the hot fluid supply device to open or close its hot fluid supply by a single handle double water-saving spool, the hot fluid supply device has a minimum flow rate to close its heating system, and a single-handle double-water-saving spool When the flow rate is lower than the minimum flow, the connected thermal fluid supply device will shut down its heating system, which is characterized in that the operating mechanism of the single-handle double-water-saving spool is in the single-heat mode and its hot water inlet hole The flow rate is greater than zero, but below the minimum flow rate at which the hot fluid supply connected to it shuts down its heating system. A fluid supply system comprising at least one valve device, and a fluid supply device, wherein fluid outlets of the fluid supply device are respectively in communication with fluid inlet ends of the respective valve devices, and control fluid inlet end flow control fluid supply devices according to an operating mechanism of the valve device The fluid supply condition is characterized in that: the valve device is a single-handle double-saving water-saving valve core according to any one of claims 16 to 23, and the fluid outlet of the fluid supply device and the heat of the single-handle double-connected water-saving valve core respectively The inlet hole and/or the cold inlet hole are connected. The fluid supply system of claim 25, wherein the fluid supply device has a function of identifying each of the single-handle double water-saving spools in their single-heat mode and/or single-cool mode. The identification device of the flow signal, and the control device that controls the internal operation thereof according to the recognition result of the identification device. The fluid supply system of claim 25 or 26, wherein the fluid supply device is a thermal fluid supply device having a heating system for heating the internal fluid thereof, the hot fluid outlet of the thermal fluid supply device and the single The hot water inlet of the double-joint water-saving spool is connected, and the hot-water supply of the hot fluid supply device is controlled by the control handle of the single-handle double-water-saving spool.