A large-scale multi-zone liquid control color-changing system and a method of using the same

Abstract

The application discloses a large-range multi-region liquid control color changing system and a use method thereof, and relates to a large-range multi-region color changing system and a use method thereof. The application aims to solve the technical problems that a current liquid control color changing method based on micro-fluid technology has difficulty in driving color changing liquid, and the control system and control method are complex when realizing large-range multi-region color changing. The application adopts a color changing speed adjusting mode combining digital control and motor continuous speed regulation, adjusts the color changing speed by changing the working number of a pump and the rotating speed of the pump, adopts corresponding control strategies for different types of pumps, and comprehensively covers various use occasions with simple structure and easy realization. The application adopts a multi-valve combined structure to realize the switching of a color changing branch circuit and the control of liquid flow direction, can reliably select colors, prevents liquid backflow into an air pump, realizes a color keeping function, and makes the system work more reliably.

Description

Technical Field

[0001] This invention relates to a large-area, multi-region color-changing system and its usage method. Background Technology

[0002] Color-changing control can achieve functions such as stealth, deception, and artistic effects, and has significant application prospects in military camouflage, art exhibitions, and the production of clothing and props. Currently, automatic color-changing methods mainly include electrochromic, thermochromic, and photochromic methods. However, these methods suffer from slow speed, limited color options, limited lifespan, high cost, and the inability to manually control the color change based on the user's wishes, resulting in controllability issues.

[0003] Microfluidic systems are characterized by their small size, low energy consumption, high efficiency, low cost, and ease of integration. Microfluidic-based liquid-controlled color-changing systems achieve color change by the inflow or outflow of different colored liquids into a color-changing unit, offering advantages such as natural color change, high controllability, good reversibility, diverse color-changing modes, strong personalization, and convenient and simple operation. However, achieving large-scale, multi-region color change using microfluidic-based liquid-controlled color-changing methods faces challenges such as difficulties in driving the color-changing liquid and complex control systems and methods. Summary of the Invention

[0004] The present invention aims to solve the technical problems of current microfluidic-based liquid-controlled color-changing methods, which face difficulties in driving the color-changing liquid and have complex control systems and methods for achieving large-scale, multi-region color-changing. The invention provides a large-scale, multi-region liquid-controlled color-changing system and its usage method.

[0005] The large-area, multi-zone liquid-controlled color-changing system of the present invention consists of an electronic control part and n circuits, where n is the number of circuits and is a positive integer, and Sn is the circuit number; each circuit consists of a color-changing unit and a color-changing drive part.

[0006] The color-changing unit is composed of multiple color-changing carriers Sn-9, which are transparent and have microchannels inside.

[0007] The color-changing drive unit consists of multiple liquid storage boxes 5, an air source Sn-3, multiple air pumps Sn-4, multiple variable hydraulic pumps Sn-5, an inlet reversing valve Sn-1, a return reversing valve Sn-2, a shut-off valve Sn-6, a check valve Sn-7, a first adapter Sn-8, and a second adapter Sn-10. The multiple air pumps Sn-4 are connected in parallel, and the multiple variable hydraulic pumps Sn-5 are also connected in parallel. Each liquid storage box 5 stores a colored liquid. Each liquid storage box 5 has n outlets and n inlets. Each outlet of the liquid storage box 5 is connected to one of the multiple inlets of the inlet reversing valve Sn-1. The outlet of the inlet reversing valve Sn-1 is connected to the inlet of the variable hydraulic pump Sn-5. The outlet of the air source Sn-3 is connected to the inlet of the air pump Sn-4. The outlet of n-4 is connected to the inlet of the check valve Sn-7; the outlet of the variable hydraulic pump Sn-5 is connected in parallel with the outlet of the check valve Sn-7, and is connected to the inlet of the color-changing carrier Sn-9 through the first adapter Sn-8, with each outlet of the first adapter Sn-8 corresponding to one inlet of the color-changing carrier Sn-9; the outlet of the color-changing carrier Sn-9 is connected to the inlet of the shut-off valve Sn-6 through the second adapter Sn-10, with each outlet of the color-changing carrier Sn-9 corresponding to one inlet of the second adapter Sn-10; the outlet of the shut-off valve Sn-6 is connected to the inlet of the return flow reversing valve Sn-2, and each inlet of the liquid storage box 5 is connected to multiple outlets of the return flow reversing valve Sn-2; the connection method of the components in each circuit is the same.

[0008] The electronic control section consists of a controller 1 and an electronic control element 2. The signal output terminal of the controller 1 is connected to the signal input terminal of the electronic control element 2. The signal output terminal of the electronic control element 2 is connected to the signal input terminals of the inlet reversing valve Sn-1, the return reversing valve Sn-2, the shut-off valve Sn-6, the variable hydraulic pump Sn-5, and the air pump Sn-4, respectively.

[0009] The driving method of the large-area multi-zone liquid-controlled color-changing system of the present invention is a gas-liquid hybrid driving method. The gas pump Sn-4 is used to pump the gas and the hydraulic pump Sn-5 is used to pump the liquid, driving the colored liquid to circulate on the color-changing carrier Sn-9.

[0010] The color-changing speed adjustment method of the large-area multi-zone liquid-controlled color-changing system of the present invention is a combination of digital control and continuous motor speed regulation.

[0011] The color switching of the large-area multi-zone liquid-controlled color-changing system of the present invention is achieved through a multi-valve combination structure. The color-changing branch circuit and the liquid flow direction are controlled by combining the inlet reversing valve Sn-1, the return reversing valve Sn-2 and the shut-off valve Sn-6.

[0012] The method of using the large-area, multi-zone liquid-controlled color-changing system of the present invention is as follows:

[0013] A colored liquid is placed in each liquid storage box 5. When colored liquid A is to be placed into the color-changing carrier Sn-9, the controller 1 sends a control signal to the electronic control element 2. The electronic control element 2 controls the inlet of the liquid inlet reversing valve Sn-1, which is connected to the liquid storage box 5 containing colored liquid A, to open. The variable hydraulic pump Sn-5 is started to pump colored liquid A into the first adapter Sn-8, and then into the specific color-changing carrier Sn-9. The color-changing carrier Sn-9 changes to the color of colored liquid A.

[0014] The color-changing speed adjustment methods during this process are as follows: (Digital control and continuous motor speed regulation methods are used to adjust the color speed respectively.)

[0015] Digital control method: Controller 1 sends control signals to electronic control component 2 to control the working quantity of variable hydraulic pump Sn-5 and the speed at which colored liquid enters color-changing carrier Sn-9, thereby controlling the color-changing speed;

[0016] Continuous speed regulation mode of motor: Controller 1 sends a control signal to the electronic control component 2 to control the motor speed of variable hydraulic pump Sn-5, change the flow rate of hydraulic pump Sn-5, control the speed at which colored liquid enters the color-changing carrier Sn-9, and thus control the color-changing speed.

[0017] The color-changing speed can also be adjusted by combining digital control and motor speed regulation.

[0018] When the color-changing carrier Sn-9 returns to its original state from its colored state, i.e. the drainage process, the controller 1 sends a control signal to the electronic control element 2. The electronic control element 2 controls the air pump Sn-4 to start working, so that the gas in the gas source Sn-3 is pumped into the specific color-changing carrier Sn-9 through the first adapter Sn-8, so that the colored liquid A is discharged from the color-changing carrier Sn-9. The colored liquid A passes through the second adapter Sn-10, the shut-off valve Sn-6 and the return liquid reversing valve Sn-2 in sequence and returns to the original storage box 5.

[0019] The color-changing speed adjustment methods during this process are as follows: (Digital control and continuous motor speed regulation methods are used to adjust the color speed respectively.)

[0020] Digital control method: Controller 1 sends a control signal to the electronic control element 2 to control the working quantity of air pump Sn-4, control the speed at which gas enters the color-changing carrier Sn-9, that is, control the speed at which the colored liquid is discharged from the color-changing carrier Sn-9, thereby controlling the recovery speed of the color-changing carrier Sn-9.

[0021] Continuous speed regulation mode of motor: Controller 1 sends a control signal to the electronic control element 2 to control the motor speed of air pump Sn-4, change the gas flow rate of air pump Sn-4, control the speed at which gas enters the color-changing carrier Sn-9, that is, control the speed at which the colored liquid is discharged from the color-changing carrier Sn-9, thereby controlling the color-changing speed.

[0022] The color-changing speed can also be adjusted by combining digital control and motor speed regulation.

[0023] The working principle of the large-area multi-zone liquid-controlled color-changing system of the present invention is as follows: the color-changing carrier Sn-9 in the color-changing unit is arranged in the area where the color needs to be changed. The controller 1 in the electronic control part sends a control signal to the electronic control element 2 to control the variable hydraulic pump Sn-5 or the air pump Sn-4 in the color-changing drive unit to work. The color of the color-changing carrier Sn-9 is achieved by injecting or discharging colored liquid into the color-changing carrier Sn-9. The color of the color-changing area is the color of the colored liquid in the color-changing carrier Sn-9. The color of the color-changing carrier Sn-9 is restored by discharging the colored liquid in the color-changing carrier Sn-9, so that the color-changing area returns to its original state.

[0024] The number of directional valves in each circuit is determined as needed, and the number of adapters in each circuit is determined as needed.

[0025] Color retention is achieved by the following method: during the process when there is no liquid entering or leaving the color-changing carrier Sn-9, the controller 1 controls the shut-off valve Sn-6, and the shut-off valve is closed.

[0026] To prevent liquid backflow into air pump Sn-4, a one-way valve Sn-7 is connected in series at the air outlet of air pump Sn-4, which can stop the liquid from flowing into air pump Sn-4.

[0027] Compared with the prior art, the beneficial effects of the present invention are:

[0028] 1. This invention employs a gas-liquid hybrid drive to circulate the liquid in the color-changing carrier Sn-9. A variable hydraulic pump Sn-5 pumps liquid into the color-changing carrier Sn-9 to achieve the color change from colorless to colored. An air pump Sn-4 pumps gas into the color-changing carrier Sn-9 to expel the liquid, achieving the color change from colored to colorless. This method avoids color mixing when different colored liquids alternately flow into the color-changing carrier Sn-9. Furthermore, the positive pressure drive of the air pump to expel the colored liquid is faster than the negative pressure suction of the liquid pump, solving the problems of slow or impossible liquid discharge in large-scale, multi-area liquid-controlled color-changing processes.

[0029] 2. This invention uses a combination of digital control and continuous motor speed regulation to adjust the color-changing speed; different control strategies are adopted for different types of pumps to control the color-changing speed; this adjustment method has a simple structure, is easy to implement, and comprehensively covers a variety of applications.

[0030] 3. This invention employs a multi-valve combined structure to achieve switching of the color-changing branch circuit and control of the liquid flow direction, enabling reliable color selection, preventing liquid backflow into the air pump, and achieving a color retention function, making the system more reliable. This method allows for color changes in multiple areas at a time, or different areas at a time, thus diversifying the color changes while ensuring the color of the color-changing carrier remains constant. Attached Figure Description

[0031] Figure 1 This is a system schematic diagram of the present invention;

[0032] Figure 2 This is a system schematic diagram from Example 1. Detailed Implementation

[0033] Specific Implementation Method 1: This implementation method is a large-scale, multi-area liquid-controlled color-changing system, such as... Figure 1 As shown, it consists of an electronic control unit and n circuits, where n is the number of circuits (a positive integer) and Sn is the circuit number; each circuit consists of a color-changing unit and a color-changing drive unit.

[0034] The color-changing unit is composed of multiple color-changing carriers Sn-9, which are transparent and have microchannels inside.

[0035] The color-changing drive unit consists of multiple liquid storage boxes 5, an air source Sn-3, multiple air pumps Sn-4, multiple variable hydraulic pumps Sn-5, an inlet reversing valve Sn-1, a return reversing valve Sn-2, a shut-off valve Sn-6, a check valve Sn-7, a first adapter Sn-8, and a second adapter Sn-10. The multiple air pumps Sn-4 are connected in parallel, and the multiple variable hydraulic pumps Sn-5 are also connected in parallel. Each liquid storage box 5 stores a colored liquid. Each liquid storage box 5 has n outlets and n inlets. Each outlet of the liquid storage box 5 is connected to one of the multiple inlets of the inlet reversing valve Sn-1. The outlet of the inlet reversing valve Sn-1 is connected to the inlet of the variable hydraulic pump Sn-5. The outlet of the air source Sn-3 is connected to the inlet of the air pump Sn-4. The outlet of n-4 is connected to the inlet of the check valve Sn-7; the outlet of the variable hydraulic pump Sn-5 is connected in parallel with the outlet of the check valve Sn-7, and is connected to the inlet of the color-changing carrier Sn-9 through the first adapter Sn-8, with each outlet of the first adapter Sn-8 corresponding to one inlet of the color-changing carrier Sn-9; the outlet of the color-changing carrier Sn-9 is connected to the inlet of the shut-off valve Sn-6 through the second adapter Sn-10, with each outlet of the color-changing carrier Sn-9 corresponding to one inlet of the second adapter Sn-10; the outlet of the shut-off valve Sn-6 is connected to the inlet of the return flow reversing valve Sn-2, and each inlet of the liquid storage box 5 is connected to multiple outlets of the return flow reversing valve Sn-2; the connection method of the components in each circuit is the same.

[0036] The electronic control section consists of a controller 1 and an electronic control element 2. The signal output terminal of the controller 1 is connected to the signal input terminal of the electronic control element 2. The signal output terminal of the electronic control element 2 is connected to the signal input terminals of the inlet reversing valve Sn-1, the return reversing valve Sn-2, the shut-off valve Sn-6, the variable hydraulic pump Sn-5, and the air pump Sn-4, respectively.

[0037] Specific Implementation Method Two: This implementation method differs from Specific Implementation Method One in that the gas source Sn-3 is a gas cylinder, gas canister, or air compressor. Everything else is the same as in Specific Implementation Method One.

[0038] Specific Implementation Method Three: This implementation method differs from Specific Implementation Method One or Two in that the microchannel is a serpentine tube with one outlet and one inlet. Everything else is the same as in Specific Implementation Method One or Two.

[0039] Specific Implementation Method Four: This implementation method differs from Specific Implementation Methods One to Three in that the inlet reversing valve Sn-1 is provided with multiple inlet ports and one outlet port. Otherwise, it is the same as Specific Implementation Methods One to Three.

[0040] Specific Implementation Method Five: This implementation method differs from Specific Implementation Method Four in that the return liquid reversing valve Sn-2 is provided with multiple liquid outlets and one liquid inlet. Everything else is the same as in Specific Implementation Method Four.

[0041] Specific Implementation Method Six: This implementation method differs from Specific Implementation Method Seven in that the electronic control component 2 is a relay. Everything else is the same as in Specific Implementation Method Seven.

[0042] Specific Implementation Method Seven: This implementation method uses a gas-liquid hybrid drive method for the large-area, multi-zone liquid-controlled color-changing system in Specific Implementation Method One. It employs an air pump Sn-4 for gas delivery and a hydraulic pump Sn-5 for liquid delivery, driving the colored liquid to circulate on the color-changing carrier. Everything else is the same as in Specific Implementation Method Five.

[0043] Specific Implementation Method Eight: This implementation method combines digital control and continuous motor speed regulation in the large-area, multi-zone liquid-controlled color-changing system described in Specific Implementation Method One. Everything else is the same as in Specific Implementation Method Six.

[0044] Specific implementation method nine: The multi-valve combination structure in the large-area multi-zone liquid-controlled color-changing system uses a combination of directional valves Sn-1 and Sn-2 and shut-off valve Sn-6 to realize the switching of color-changing branch circuits and control of liquid flow direction.

[0045] Specific Implementation Method Ten: This implementation method is the usage method of the large-area, multi-zone liquid-controlled color-changing system in Specific Implementation Method One, specifically as follows:

[0046] A colored liquid is placed in each liquid storage box 5. When colored liquid A is to be placed into the color-changing carrier Sn-9, the controller 1 sends a control signal to the electronic control element 2. The electronic control element 2 controls the inlet of the liquid inlet reversing valve Sn-1, which is connected to the liquid storage box 5 containing colored liquid A, to open. The variable hydraulic pump Sn-5 is started to pump colored liquid A into the first adapter Sn-8, and then into the specific color-changing carrier Sn-9. The color-changing carrier Sn-9 changes to the color of colored liquid A.

[0047] The color-changing speed adjustment methods during this process are as follows: (Digital control and continuous motor speed regulation methods are used to adjust the color speed respectively.)

[0048] Digital control method: Controller 1 sends control signals to electronic control component 2 to control the working quantity of variable hydraulic pump Sn-5 and the speed at which colored liquid enters color-changing carrier Sn-9, thereby controlling the color-changing speed;

[0049] Continuous speed regulation mode of motor: Controller 1 sends a control signal to the electronic control component 2 to control the motor speed of variable hydraulic pump Sn-5, change the flow rate of hydraulic pump Sn-5, control the speed at which colored liquid enters the color-changing carrier Sn-9, and thus control the color-changing speed.

[0050] The color-changing speed can also be adjusted by combining digital control and motor speed regulation.

[0051] When the color-changing carrier Sn-9 returns to its original state from its colored state, i.e. the drainage process, the controller 1 sends a control signal to the electronic control element 2. The electronic control element 2 controls the air pump Sn-4 to start working, so that the gas in the gas source Sn-3 is pumped into the specific color-changing carrier Sn-9 through the first adapter Sn-8, so that the colored liquid A is discharged from the color-changing carrier Sn-9. The colored liquid A passes through the second adapter Sn-10, the shut-off valve Sn-6 and the return liquid reversing valve Sn-2 in sequence and returns to the original storage box 5.

[0052] The color-changing speed adjustment methods during this process are as follows: (Digital control and continuous motor speed regulation methods are used to adjust the color speed respectively.)

[0053] Digital control method: Controller 1 sends a control signal to the electronic control element 2 to control the working quantity of air pump Sn-4, control the speed at which gas enters the color-changing carrier Sn-9, that is, control the speed at which the colored liquid is discharged from the color-changing carrier Sn-9, thereby controlling the recovery speed of the color-changing carrier Sn-9.

[0054] Continuous speed regulation mode of motor: Controller 1 sends a control signal to the electronic control element 2 to control the motor speed of air pump Sn-4, change the gas flow rate of air pump Sn-4, control the speed at which gas enters the color-changing carrier Sn-9, that is, control the speed at which the colored liquid is discharged from the color-changing carrier Sn-9, thereby controlling the color-changing speed.

[0055] The color-changing speed can also be adjusted by combining digital control and motor speed regulation.

[0056] The present invention is verified using the following examples:

[0057] Example 1: This example is a large-area, multi-zone liquid-controlled color-changing system, such as... Figure 2As shown, the number of color-changing colors is set to two, namely green and yellow, and the number of color-changing carriers is eight (3-1-1, 3-1-2, 3-1-3, 3-1-4, 4-1-1, 4-1-2, 4-1-3, 4-1-4). The color-changing carriers are transparent and have serpentine microchannels inside. The color-changing carriers are divided into two groups. In this embodiment, there are two loops, namely the first loop (3) and the second loop (4). The control mechanisms of the two are the same. Two liquid storage boxes (5-1 and 5-2) are prepared to store green liquid and yellow liquid respectively. Each liquid storage box contains two liquid outlets and two liquid inlets, corresponding to two loops respectively.

[0058] Taking the first circuit (3) as an example, the outlet of the liquid storage box (5-1 and 5-2) is connected to the inlet reversing valve (3-7-1), and then connected to multiple variable hydraulic pumps (3-4); the air source (3-6) is connected to multiple air pumps (3-5), and then connected to the check valve (3-3); multiple hydraulic pumps (3-4) are connected in parallel with the check valve (3-3), and connected to the inlet of a set of color-changing carriers (3-1-1, 3-1-2, 3-1-3, 3-1-4) through the first adapter (3-2-1); the outlet of the color-changing carriers (3-1-1, 3-1-2, 3-1-3, 3-1-4) is connected to the shut-off valve (3-8) through the second adapter (3-2-2), and then connected to the return reversing valve (3-7-2), and then connected to the liquid storage box (5-1 and 5-2);

[0059] The first and second adapters are tee connectors;

[0060] The inlet reversing valves (3-7-1 and 4-7-1) have two inlets and one outlet; the return reversing valves (3-7-2 and 4-7-2) have two outlets and one inlet.

[0061] The connection method of the components in the second circuit (4) is the same as that in the first circuit (3).

[0062] The controller (1) controls the switching of all directional valves (3-7-1, 3-7-2, 4-7-1 and 4-7-2), the switching of shut-off valves (3-8 and 4-8), the operation of variable hydraulic pumps (3-4 and 4-4) and air pumps (3-5 and 4-5) in the first circuit (3) and the second circuit (4) by controlling the opening and closing of relays (2) that connect various components.

[0063] The gas-liquid mixing drive is a method that combines gas pumping and liquid pumping to drive the colored liquid in the pipeline and the color-changing carrier, thereby causing the color-changing carrier to change color.

[0064] When the color-changing carrier becomes colored, i.e. during the liquid injection process, the controller (1) controls the relay (2) connected to the variable hydraulic pump (3-4) to close, and the variable hydraulic pump (3-4 and 4-4) works, so that the colored liquid is injected from the storage box (5-1 and 5-2) into the color-changing carrier (3-1-1, 3-1-2, 3-1-3, 3-1-4, 4-1-1, 4-1-2, 4-1-3 and 4-1-4);

[0065] When the color-changing carrier returns to its original state from its colored state, i.e., during the drainage process, the controller (1) controls the relay (2) connected to the air pump to close, and the air pump (3-5 and 4-5) works, so that the gas in the gas source (3-6 and 4-6) is injected into the color-changing carrier (3-1-1, 3-1-2, 3-1-3, 3-1-4, 4-1-1, 4-1-2, 4-1-3 and 4-1-4), so that the colored liquid is drained back into the storage box (5-1 and 5-2).

[0066] The color-changing speed is controlled by digital control. The controller (1) controls the number of closed relays (2) connecting the variable hydraulic pump and the air pump, determining the number of working units of the variable hydraulic pumps (3-4 and 4-4) and air pumps (3-6 and 4-6) in a circuit. This controls the rate at which liquid and gas are injected into the color-changing carriers (3-1-1, 3-1-2, 3-1-3, 3-1-4, 4-1-1, 4-1-2, 4-1-3, and 4-1-4) in the circuit, thereby controlling the color-changing speed. By continuously increasing the number of working units of the variable hydraulic pumps (3-4 and 4-4) and air pumps (3-6 and 4-6), the color-changing speed can be increased.

[0067] The color-changing speed is controlled by the continuous speed regulation of the motor. The controller (1) controls the closing of the relays (2) connected to the hydraulic pump and the relay (2) connected to the air pump, which determines whether the variable hydraulic pumps (3-4 and 4-4) and the air pumps (3-6 and 4-6) in a circuit are working. The controller (1) outputs a voltage signal to change the speed of the variable hydraulic pumps (3-4 and 4-4) and the air pumps (3-6 and 4-6), thereby changing their flow rate. This controls the speed at which liquid and gas are injected into the color-changing carriers (3-1-1, 3-1-2, 3-1-3, 3-1-4, 4-1-1, 4-1-2, 4-1-3 and 4-1-4) in a circuit, thereby controlling the color-changing speed. By continuously increasing the speed of the variable hydraulic pumps (3-4 and 4-4) and the air pumps (3-6 and 4-6), the color-changing speed can be made faster and faster.

[0068] Controlling the color-changing speed can achieve multiple functions, including coordinated color changing. By controlling the number of operations of the variable hydraulic pump (3-4) on the first circuit (3) and the variable hydraulic pump (4-4) on the second circuit (4), the liquid injection time of the color-changing carriers (3-1-1, 3-1-2, 3-1-3 and 3-1-4) on the first circuit (3) and the liquid injection start time of the color-changing carriers (4-1-1, 4-1-2, 4-1-3 and 4-1-4) on the second circuit (4) can be approximately the same. By controlling the number of working air pumps (3-5) on the first loop (3) and (4-5) on the second loop (4), the gas injection time of the color-changing carriers (3-1-1, 3-1-2, 3-1-3 and 3-1-4) on the first loop (3) and the gas injection start time of the color-changing carriers (4-1-1, 4-1-2, 4-1-3 and 4-1-4) on the second loop (4) are made approximately the same, thereby achieving coordinated color change in multiple regions.

[0069] This embodiment can also achieve color selection, prevent liquid backflow into the air pump, and maintain color.

Claims

1. A large-area, multi-zone liquid-controlled color-changing system, characterized in that... The large-area, multi-zone liquid-controlled color-changing system consists of an electronic control unit and n loops, where n is the number of loops (a positive integer) and Sn is the loop number. Each loop consists of a color-changing unit and a color-changing drive unit. The color-changing unit is composed of multiple color-changing carriers (Sn-9), which are transparent and have microchannels inside. The color-changing drive unit consists of multiple liquid storage tanks (5), an air source (Sn-3), multiple air pumps (Sn-4), multiple variable hydraulic pumps (Sn-5), an inlet reversing valve (Sn-1), a return reversing valve (Sn-2), a shut-off valve (Sn-6), a check valve (Sn-7), a first adapter (Sn-8), and a second adapter (Sn-10); the multiple air pumps (Sn-4) are connected in parallel, and the multiple variable hydraulic pumps... The pumps (Sn-5) are connected in parallel; each liquid storage box (5) stores a colored liquid, and each liquid storage box (5) has n outlets and n inlets. Each outlet of the liquid storage box (5) is connected to one-to-one with multiple inlets of the inlet reversing valve (Sn-1); the outlet of the inlet reversing valve (Sn-1) is connected to the inlet of the variable hydraulic pump (Sn-5); the outlet of the air source (Sn-3) is connected to the inlet of the air pump (Sn-4). The air outlet of the air pump (Sn-4) is connected to the air inlet of the check valve (Sn-7); the liquid outlet of the variable hydraulic pump (Sn-5) is connected in parallel with the air outlet of the check valve (Sn-7), and is connected to the liquid inlet of the color-changing carrier (Sn-9) through a first adapter (Sn-8), with each outlet of the first adapter (Sn-8) corresponding to one liquid inlet of the color-changing carrier (Sn-9); the liquid outlet of the color-changing carrier (Sn-9) is connected to the first... The second adapter (Sn-10) is connected to the inlet of the shut-off valve (Sn-6), and the outlet of each color-changing carrier (Sn-9) corresponds one-to-one with the inlet of the second adapter (Sn-10); the outlet of the shut-off valve (Sn-6) is connected to the inlet of the return liquid reversing valve (Sn-2), and each inlet of the liquid storage box (5) is connected one-to-one with multiple outlets of the return liquid reversing valve (Sn-2); the connection method of the components in each circuit is the same; The electronic control section consists of a controller (1) and an electronic control element (2). The signal output terminal of the controller (1) is connected to the signal input terminal of the electronic control element (2). The signal output terminal of the electronic control element (2) is connected to the signal input terminals of the inlet reversing valve (Sn-1), the return reversing valve (Sn-2), the shut-off valve (Sn-6), the variable hydraulic pump (Sn-5), and the air pump (Sn-4), respectively.

2. The large-area, multi-zone liquid-controlled color-changing system according to claim 1, characterized in that... The gas source (Sn-3) is a gas cylinder, gas tank, or air compressor.

3. The large-area, multi-zone liquid-controlled color-changing system according to claim 1, characterized in that... The microchannel is a serpentine tube with one outlet and one inlet.

4. The large-area, multi-zone liquid-controlled color-changing system according to claim 1, characterized in that... The inlet reversing valve (Sn-1) is provided with multiple inlet ports and one outlet port.

5. A large-area, multi-zone liquid-controlled color-changing system according to claim 1, characterized in that... The return liquid reversing valve (Sn-2) is provided with multiple liquid outlets and one liquid inlet.

6. The large-area, multi-zone liquid-controlled color-changing system according to claim 1, characterized in that... The electronic control component (2) is a relay.

7. The large-area, multi-zone liquid-controlled color-changing system according to claim 1, characterized in that... The large-area, multi-zone liquid-controlled color-changing system is driven by a gas-liquid hybrid drive method. It uses an air pump (Sn-4) to pump the gas and a hydraulic pump (Sn-5) to pump the liquid, driving the colored liquid to circulate on the color-changing carrier (Sn-9).

8. The large-area, multi-zone liquid-controlled color-changing system according to claim 1, characterized in that... The color-changing speed adjustment method of the large-area, multi-zone liquid-controlled color-changing system is a combination of digital control and continuous motor speed regulation.

9. A large-area, multi-zone liquid-controlled color-changing system according to claim 1, characterized in that... The multi-valve combination structure in the large-area multi-zone liquid-controlled color-changing system uses a combination of inlet reversing valve (Sn-1), return reversing valve (Sn-2), and shut-off valve (Sn-6) to achieve the switching of color-changing branch circuits and control of liquid flow direction.

10. The method of using a large-area, multi-zone liquid-controlled color-changing system as described in claim 1, characterized in that... The usage method of the large-area, multi-zone liquid-controlled color-changing system is as follows: A colored liquid is placed in each storage box (5). When colored liquid A is to be placed into the color-changing carrier (Sn-9), the controller (1) sends a control signal to the electronic control element (2). The electronic control element (2) controls the liquid inlet of the liquid inlet reversing valve (Sn-1) connected to the storage box (5) containing colored liquid A to open. The variable hydraulic pump (Sn-5) is started to pump colored liquid A into the first adapter (Sn-8), and then into the specific color-changing carrier (Sn-9). The color-changing carrier (Sn-9) changes to the color of colored liquid A. The color-changing speed adjustment methods during this process are as follows: (Digital control and continuous motor speed regulation methods are used to adjust the color speed respectively.) Digital control method: The controller (1) sends a control signal to the electronic control element (2) to control the working quantity of the variable hydraulic pump (Sn-5) and the speed at which the colored liquid enters the color-changing carrier (Sn-9), thereby controlling the color-changing speed; Continuous speed regulation mode of motor: The controller (1) sends a control signal to the electronic control element (2) to control the motor speed of the variable hydraulic pump (Sn-5), change the flow rate of the hydraulic pump (Sn-5), control the speed at which the colored liquid enters the color-changing carrier (Sn-9), and thus control the color-changing speed. It also includes adjusting the color-changing speed by combining digital control and motor speed regulation; When the color-changing carrier (Sn-9) returns to its original state from its colored state, i.e. the drainage process, the controller (1) sends a control signal to the electronic control element (2), and the electronic control element (2) controls the air pump (Sn-4) to start working so that the gas in the air source (Sn-3) is pumped into the specific color-changing carrier (Sn-9) through the first adapter (Sn-8), so that the colored liquid A is discharged from the color-changing carrier (Sn-9). The colored liquid A passes through the second adapter (Sn-10), the shut-off valve (Sn-6) and the return liquid reversing valve (Sn-2) in sequence and returns to the original storage box (5). The color-changing speed adjustment methods during this process are as follows: (Digital control and continuous motor speed regulation methods are used to adjust the color speed respectively.) Digital control method: The controller (1) sends a control signal to the electronic control element (2) to control the working quantity of the air pump (Sn-4), control the speed at which the gas enters the color-changing carrier (Sn-9), that is, control the speed at which the colored liquid is discharged from the color-changing carrier (Sn-9), thereby controlling the recovery speed of the color-changing carrier (Sn-9); Continuous speed regulation mode of motor: The controller (1) sends a control signal to the electronic control element (2) to control the motor speed of the air pump (Sn-4), change the gas flow rate of the air pump (Sn-4), control the speed at which the gas enters the color-changing carrier (Sn-9), that is, control the speed at which the colored liquid is discharged from the color-changing carrier (Sn-9), thereby controlling the color-changing speed. It also includes adjusting the color-changing speed by combining digital control and motor speed regulation.

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