Modularized, integrated and lightweight water supply device capable of switching different states and water supply method

Abstract

The invention provides a modularized, integrated and lightweight water supply device capable of switching different states and a water supply method. The water supply device comprises an inlet switching valve, an outlet switching valve, a water supply one-way valve, a water replenishing one-way valve, three groups of disconnectors, a bubble observer, a bubble filter, two groups of pressure sensors, two groups of conductivity sensors and a water supply pump with a controller, the single machines are detachably integrated on the mounting bottom plate (or the single machines with high integration level are combined into a plurality of functional modules and then are detachably integrated on the mounting bottom plate), and mutual switching of two working modes of water supply and water supplement is achieved through combined use of the single machines. Pipelines among single machines are integrated in a valve body part base body or are connected through a quick plug connector of a hose or a plunger connector structure, so that integration of the water supply device is realized, and the disassembly convenience of the single machines is improved; and meanwhile, the mounting bottom plate adopts a hollow structure design, and a weight reducing groove is formed in a supporting structure of the module, so that the light weight of the water supply device is realized.

Description

Technical Field

[0001] The present invention belongs to the technical field of water supply devices, and particularly relates to a modular, integrated, lightweight water supply device capable of realizing different state switches and a water supply method, which are applicable to enclosed spaces such as aircraft and submarines that require highly integrated systems. Background Art

[0002] Extraterrestrial artificial photosynthesis is a chemical process that simulates the natural photosynthesis of green plants on Earth and accelerates and controllably converts carbon dioxide into oxygen and carbon-containing fuels through photoelectrocatalysis. It can not only convert the carbon dioxide generated by human respiration into oxygen through artificial photosynthesis technology, realize the in-situ resource regeneration cycle of waste in enclosed spaces, and greatly reduce the material supply requirements of manned space stations and manned deep-space spacecraft, but also utilize the rich carbon dioxide and water in-situ resources in the extraterrestrial atmospheric environment such as Mars to produce oxygen and fuel, realize the extraterrestrial survival of humans on other planets, and support affordable and sustainable manned deep-space exploration missions.

[0003] In order to realize the normal operation of the extraterrestrial artificial photosynthesis system, it is necessary to supply water to the photosynthesis system. The enclosed space has a high demand for highly integrated devices. At the same time, the water in the special water tank of the water supply device comes from the general water tank outside the device, and the device needs to have two modes: normal water supply and online water replenishment. The normal water supply process is to supply the water that meets the index requirements in the special water tank to the photosynthesis system. When the water in the special water tank is exhausted, it switches to the online water replenishment mode. The online water replenishment process is to purify the water in the general water tank to meet the index requirements and then transfer it to the special water tank. This design not only realizes the water supply demand for photosynthesis, but also successfully transfers the water in the large water tank (general water tank) to the special water tank, realizing the lightweight and miniaturization of the device.

[0004] Therefore, it is necessary to provide a modular, integrated, lightweight water supply device capable of realizing different state switches and the corresponding water supply method. Through the integrated and modular design of the device, the stable water supply demand required for photosynthesis is realized. Summary of the Invention

[0005] In order to overcome the deficiencies in the prior art, the inventor of the present invention has conducted intensive research and provided a modular, integrated, lightweight water supply device capable of realizing different state switches and a water supply method, which has a high degree of integration, a complex flow path, and high sealing performance requirements, and can realize the mutual switching between two working modes of water supply and water replenishment.

[0006] The technical solution provided by the present invention is as follows:

[0007] In a first aspect, a modular, integrated, lightweight water supply device capable of achieving different state switches includes: an inlet switching valve, an outlet switching valve, a water supply check valve, a water replenishing check valve, three sets of disconnects, a bubble viewer, a bubble filter, two pressure sensors, two conductivity sensors, and a water supply pump with a controller. The above-mentioned individual machines are integrated on an installation base plate;

[0008] The three sets of disconnects are used to achieve quick connection with an external system; the first disconnect is connected to a dedicated water tank, the second disconnect is connected to a general water tank, and the third disconnect is connected to a photosynthesis system;

[0009] The inlet switching valve includes a valve body, a water supply inlet, a water replenishing inlet, and an inlet switching valve outlet. The water supply inlet is connected to the first disconnect to achieve communication with the dedicated water tank; the water replenishing inlet is connected to the second disconnect to achieve communication with the general water tank; the inlet switching valve outlet is communicated with the bubble viewer, and the working medium enters the bubble viewer from the inlet switching valve;

[0010] The outlet switching valve includes a valve body, a water supply outlet, a water replenishing outlet, and an outlet switching valve inlet. The outlet switching valve inlet is connected to the first conductivity sensor to receive water from the dedicated water tank or the general water tank; the water supply outlet is connected to the third disconnect, and further communicated with the photosynthesis system; the water replenishing outlet is sequentially connected to a first internal joint, a water purifier, and a second internal joint, and the water purified by the water purifier is sent back to the water supply device through the second internal joint;

[0011] The first conductivity sensor is located downstream of the bubble viewer, and the second conductivity sensor is located downstream of the first pressure sensor, and is used for on-line monitoring of the conductivity of the working medium;

[0012] The first pressure sensor is located downstream of the second internal joint, and the second pressure sensor is located at the outlet of the water supply pump, and are respectively used for on-line monitoring of the pressure of the purified working medium entering the water supply device and the working medium pumped out;

[0013] The inlet of the bubble viewer is communicated with the inlet switching valve, and the outlet is communicated with the first conductivity sensor, and is used for observing visible bubbles in the working medium;

[0014] The bubble filter is located on the water replenishing pipeline, with the second pressure sensor upstream and the water replenishing check valve downstream, and is used for removing gas in the purified working medium, and the purified working medium is directly sent to the dedicated water tank;

[0015] The water supply check valve is installed on the water supply pipeline between the outlet switching valve and the third disconnect, and the water replenishing check valve is installed on the water replenishing pipeline between the bubble filter and the first disconnect, and are respectively used to ensure the one-way flow of the working medium in the water supply mode and the water replenishing mode;

[0016] The water supply pump functions in the water replenishment state, i.e., it is located on the water replenishment pipeline, conveys the purified working medium to the special water tank, provides water for the normal operation of the components, and the water supply pump controller controls the working state of the water supply pump.

[0017] In a second aspect, a water supply method is implemented using the modular, integrated, lightweight water supply device capable of realizing different state switches described in the first aspect, including:

[0018] Under the normal water supply flow path, the working medium in the special water tank enters the device through the first disconnecter. The water replenishment check valve is in the closed state. First, it passes through the inlet switching valve for flow direction selection and switches to the "water supply" state. The working medium enters the bubble viewer from the outlet of the inlet switching valve to observe the visible bubbles in the working medium. The outlet of the bubble viewer is connected to the inlet of the first conductivity sensor through the first hose. The first conductivity sensor monitors the water conductivity of the working medium in real time. Subsequently, the working medium passes from the outlet of the first conductivity sensor through the second hose and is connected to the outlet switching valve, switches to the "water supply" state, and after the flow direction selection by the outlet switching valve, it enters the third disconnecter through the open water supply check valve to supply water to the downstream components;

[0019] Under the on-line water replenishment flow path, the working medium in the general water tank enters the water supply device through the second disconnecter. First, it passes through the inlet switching valve for flow direction selection and switches to the "water replenishment" state. The working medium enters the bubble viewer from the outlet of the inlet switching valve to observe the visible bubbles in the working medium. The outlet of the bubble viewer is connected to the inlet of the first conductivity sensor through the first hose. The first conductivity sensor monitors the water conductivity of the working medium in real time. Subsequently, the working medium passes from the outlet of the first conductivity sensor through the second hose and is connected to the outlet switching valve. The outlet switching valve switches to the "water replenishment" state. The working medium enters the water purifier through the first internal joint for water quality treatment. The treated working medium enters the water supply device again through the second internal joint. After monitoring the inlet pressure by the first pressure sensor, it enters the inlet of the second conductivity sensor through the third hose. The second conductivity sensor monitors the water conductivity of the working medium in real time. Subsequently, the working medium passes from the outlet of the second conductivity sensor through the fourth hose and is connected to the inlet of the water supply pump. The working medium is pressurized by the water supply pump and the working medium pressure is monitored in real time by the second pressure sensor at the outlet of the water supply pump. Subsequently, it enters the bubble filter to remove the excess bubbles in the working medium, and finally, after passing through the open water replenishment check valve, it stores water in the special water tank through the first disconnecter.

[0020] A modular, integrated, lightweight water supply device and water supply method provided by the present invention have the following beneficial effects:

[0021] The present invention provides a modular, integrated, lightweight water supply device that can achieve switching between different states, including an inlet switching valve, an outlet switching valve, a water supply one-way valve, a water replenishment one-way valve, three sets of disconnectors, a bubble observer, a bubble filter, two sets of pressure sensors, two sets of conductivity sensors and a water supply pump with a controller. The above single machines are detachably integrated on a mounting base plate (or the single machines with higher integration are combined into several functional modules and then detachably integrated on the mounting base plate). The combined use of the single machines satisfies the need for switching between the two working modes of water supply and water replenishment; the pipelines between the single machines are integrated in the valve body component base or connected by a quick-insert connector or a plunger connector structure of the hose, thereby realizing the integration of the water supply device and improving the convenience of disassembly of the single machine; at the same time, the mounting base plate adopts a hollow structure design, and the weight-reducing groove is processed on the supporting structure of the module, thereby realizing the lightweighting of the water supply device. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a three-dimensional diagram of the modular, integrated, lightweight water supply device capable of switching between different states according to the present invention;

[0023] Figure 2 This is a top view of the modular, integrated, lightweight water supply device capable of switching between different states according to the present invention;

[0024] Figure 3 This is a module partition diagram of the modular, integrated, lightweight water supply device capable of switching between different states according to the present invention;

[0025] Figure 4 This is a schematic diagram of the installation position and piping of the first module in the modular, integrated, lightweight water supply device capable of switching between different states according to the present invention;

[0026] Figure 5 This is a schematic diagram of the structure of the lugs installed on the bottom plate of the modular, integrated, lightweight water supply device capable of switching between different states according to the present invention;

[0027] Figure 6 It is a schematic diagram of a plunger joint structure with two adapter units;

[0028] Figure 7 It is a cross-sectional view of a single adapter unit in the plunger joint structure. DETAILED DESCRIPTION

[0029] The following detailed description of the present invention will make the features and advantages of the present invention more clear and explicit.

[0030] The word “exemplary” is used exclusively herein to mean “serving as an example, example, or illustration.” Any embodiment described herein as “exemplary” is not necessarily to be construed as preferred or advantageous over other embodiments.

[0031] The present invention provides a modular, integrated and lightweight water supply device capable of realizing different state switches, such as Figure 1 and Figure 2 shown, including: an inlet switching valve (i.e., switching valve 1), an outlet switching valve (i.e., switching valve 2), a water supply check valve, a make-up water check valve, three sets of disconnects (i.e., disconnects 1-3), a bubble viewer, a bubble filter, two sets of pressure sensors (i.e., pressure sensors 1-2), two sets of conductivity sensors (i.e., conductivity sensors 1-2) and a water supply pump (including a controller); the above single machines are integrated on the mounting base plate;

[0032] Among them, the three sets of disconnects 1-3 are used to realize the quick connection with the external system; the first disconnect 1 is connected to the special water tank, the second disconnect 2 is connected to the general water tank, and the third disconnect 3 is connected to the photosynthesis system;

[0033] The inlet switching valve includes a valve body, a water supply inlet, a make-up water inlet and an inlet switching valve outlet. The water supply inlet is connected to the first disconnect 1, thereby realizing the connection with the special water tank; the make-up water inlet is connected to the second disconnect 2, thereby realizing the connection with the general water tank; the inlet switching valve outlet is connected to the bubble viewer, and the working medium enters the bubble viewer from the inlet switching valve;

[0034] The outlet switching valve includes a valve body, a water supply outlet, a make-up water outlet and an outlet switching valve inlet. The outlet switching valve inlet is connected to the first conductivity sensor 1 to receive the water from the special water tank or the general water tank; the water supply outlet is connected to the third disconnect 3, thereby being connected to the photosynthesis system; the make-up water outlet is sequentially connected to the first internal joint 1, the water purifier and the second internal joint 2, and the water purified by the water purifier is sent back to the water supply device through the second internal joint 2;

[0035] The first conductivity sensor 1 is located downstream of the bubble viewer, and the second conductivity sensor 2 is located downstream of the first pressure sensor 1 for on-line monitoring of the conductivity of the working medium;

[0036] The first pressure sensor 1 is located downstream of the second internal joint 2, and the second pressure sensor 2 is located at the outlet of the water supply pump, respectively for on-line monitoring of the pressure of the purified working medium entering the water supply device and the pumped working medium;

[0037] The inlet of the bubble viewer is connected to the inlet switching valve, and the outlet is connected to the first conductivity sensor 1 for observing the visible bubbles in the working medium;

[0038] The bubble filter is located on the make-up water pipeline, with the second pressure sensor 2 upstream and the make-up water check valve downstream, for removing the gas in the purified working medium, and the purified working medium is directly sent to the special water tank;

[0039] The water supply check valve is installed on the water supply pipeline between the outlet switching valve and the third disconnect 3, and the water replenishing check valve is installed on the water replenishing pipeline between the bubble filter and the first disconnect 1, respectively used to ensure the one-way flow of the working medium in the water supply mode and the water replenishing mode;

[0040] The water supply pump acts in the water replenishing state, that is, it is located on the water replenishing pipeline, and conveys the purified working medium to the special water tank to provide water for the normal operation of the component. The water supply pump controller controls the working state of the water supply pump.

[0041] The main function of the water supply device is to supply water to the photosynthesis system through the special water tank (used to store the purified working medium for the water supply device). When the water in the special water tank is exhausted, the water in the general water tank (as the main water tank, storing the working medium) is purified and replenished to the special water tank. The water supply device can realize the switching between the normal water supply and the on-line water replenishing functions.

[0042] Normal water supply flow path: The working medium in the special water tank enters the device through the first disconnect 1 (quick connector) (the water replenishing check valve is closed). First, it passes through the inlet switching valve for flow direction selection (switched to the "water supply" state). The working medium enters the bubble viewer from the outlet of the inlet switching valve to observe the visible bubbles in the working medium. The outlet of the bubble viewer is connected to the inlet of the first conductivity sensor 1 through the first hose 1. The first conductivity sensor 1 monitors the conductivity of the working medium in real time. Subsequently, the working medium passes from the outlet of the first conductivity sensor 1 through the second hose 2 to the outlet switching valve (switched to the "water supply" state). After the flow direction selection by the outlet switching valve, it enters the third disconnect 3 (quick connector) through the water supply check valve (the water supply check valve is open) to supply water to the downstream components.

[0043] The connection relationship between the single machines in the water supply state is: special water tank - first disconnect 1 - inlet of the inlet switching valve (water supply mode) - inlet switching valve - outlet of the inlet switching valve - inlet of the bubble viewer - bubble viewer - outlet of the bubble viewer - first hose 1 - inlet of the first conductivity sensor 1 - first conductivity sensor 1 - outlet of the first conductivity sensor 1 - second hose 2 - inlet of the outlet switching valve - outlet switching valve - outlet of the outlet switching valve (water supply mode) - water supply check valve - third disconnect 3.

[0044] Online make-up water flow path: The working medium in the general water tank enters the water supply device through the second disconnect 2 (quick connector). First, it passes through the inlet switching valve for flow direction selection (switch to the "make-up water" state). The working medium enters the bubble viewer from the outlet of the inlet switching valve to observe the visible bubbles in the working medium. The outlet of the bubble viewer is connected to the inlet of the first conductivity sensor 1 through the first hose 1. The first conductivity sensor 1 monitors the water conductivity of the working medium in real time. Subsequently, the working medium passes from the outlet of the first conductivity sensor 1 through the second hose 2 to the outlet switching valve (switch to the "make-up water" state). The working medium enters the water purifier through the first internal joint 1 for water quality treatment. The treated working medium enters the water supply device again through the second internal joint 2. After monitoring the inlet pressure by the first pressure sensor 1, it enters the inlet of the second conductivity sensor 2 through the third hose 3. The second conductivity sensor 2 monitors the water conductivity of the working medium in real time. Subsequently, the working medium passes from the outlet of the second conductivity sensor 2 through the fourth hose 4 to the inlet of the water supply pump. The working medium is pressurized by the water supply pump and the pressure of the working medium is monitored in real time by the second pressure sensor 2 at the outlet of the water supply pump. Then, it enters the bubble filter to remove the excess bubbles in the working medium. Finally, after passing through the make-up water check valve (the check valve is open), the water is stored in the special water tank through the first disconnect 1.

[0045] The connection relationship between single machines in the make-up water state is: general water tank - second disconnect 2 - inlet of the inlet switching valve (make-up water mode) - inlet switching valve - outlet of the inlet switching valve - inlet of the bubble viewer - bubble viewer - outlet of the bubble viewer - first hose 1 - inlet of the first conductivity sensor 1 - first conductivity sensor 1 - outlet of the first conductivity sensor 1 - second hose 2 - inlet of the outlet switching valve - outlet switching valve - outlet of the outlet switching valve (make-up water mode) - first internal joint 1 - hose (including water purifier - external structure) - second internal joint 2 - first pressure sensor 1 - third hose 3 - inlet of the second conductivity sensor 2 - second conductivity sensor 2 - outlet of the second conductivity sensor 2 - fourth hose 4 - inlet of the water supply pump - water supply pump - outlet of the water supply pump - second pressure sensor 2 - inlet of the bubble filter - bubble filter - outlet of the bubble filter - make-up water check valve - first disconnect 1 - special water tank.

[0046] As Figure 3 shown, the water supply device is laid out and designed by using hose connection and embedded integration method, which can reduce the external pipeline and the overall volume. During the integration process, single machines with higher integration are combined into several functional modules. The modules are connected to each other, the modules are connected to single machines, and single machines are connected to single machines through the plunger joint structure and hoses.

[0047] The water supply device is divided into four functional modules. The first module consists of an inlet switching valve, an outlet switching valve, a water supply check valve, a make-up water check valve, three disconnects, and a bubble viewer. The above-mentioned individual machines are installed on the base of the valve body component. The interfaces of the three disconnects are integrated into the base of the valve body component. The bubble viewer and the base of the valve body component adopt an end face sealing structure, and the bubble viewer is connected and fixed to the base of the valve body component with M3 screws. The water supply check valve, the make-up water check valve, the inlet switching valve, and the outlet switching valve are embedded in the base of the valve body component to improve the integration of the components, and are connected and fixed to the base of the valve body component with screws. The flow channels between the individual machines of the first module are all built into the base of the valve body component, and the base of the valve body component is installed on the mounting base plate with 8 M4 screws. The base of the valve body component of the first module is shown in Figure 4 . The base of the valve body component adopts an integrated machining and forming technology, and the inner cavity of the flow channel uses an abrasive flow process to remove burrs, enabling the device to have better load-bearing performance and flow capacity.

[0048] The second module consists of two pressure sensors and a bubble filter. The two pressure sensors and the bubble filter are installed on a bracket, and the bracket is fixed to the mounting base plate with 6 M4 screws. The third module consists of two conductivity sensors and quick-connect joints at the inlets and outlets of the conductivity sensors. Based on the fact that the conductivity sensors are consumables and need to be replaced in orbit, the inlet and outlet joints are designed into a quick-disassembly and quick-assembly structure and installed on the base of the conductivity sensors. The base is installed on the mounting base plate with 8 M4 screws, and is connected to other modules in the device through the first hose 1 - the second hose 4 with quick-connect joints inside. The quick-connect joint adopts a threaded double O-ring structure form (that is, the quick-connect joint is a threaded connection structure and is sealed through a double O-ring structure). This structure is simple, has few parts, and has good sealing performance. The fourth module consists of a water supply pump (including a controller) and is installed on the mounting base plate with 4 M5 screws.

[0049] The water supply device is designed in an integrated and modular manner, effectively reducing the pipeline length, achieving the best effect of the flow resistance of the entire device, effectively reducing the output power of the water supply pump, and providing a basis for the lightweight and low power consumption of the water supply pump.

[0050] To ensure that each individual machine meets the mechanical launch conditions, the base of the valve body component of the first module, the bracket of the second module, and the base of the conductivity sensor of the third module are connected to the mounting base plate with M4 screws, and the water supply pump of the fourth module is installed on the mounting base plate with M5 screws. The entire device is integrally connected to the bulkhead through multiple, such as 10, lugs on the mounting base plate with M5 screws; at the same time, positioning pin holes are designed at asymmetric positions on both sides of the mounting base plate of the device to ensure the positioning requirements during the disassembly and assembly process, as shown in Figure 5 . After the water supply device is used in orbit for a long time, it needs to be updated and requires astronauts to disassemble it in orbit. By designing positioning pins at asymmetric positions, it is possible to avoid incorrect installation of the position and direction of the mounting base plate during reinstallation after disassembly, improving the installation accuracy and convenience.

[0051] The inlet of the water supply pump is connected to the fourth hose 4 through a non-welded plunger joint structure, and the outlet of the water supply pump is connected to the second pressure sensor 2 through a non-welded plunger joint structure. The non-welded plunger joint structure can effectively reduce the connection length between the fourth module and the third module, and between the fourth module and the second module, which is beneficial to meeting the integration requirements. As Figure 6 and Figure 7 shown, the non-welded plunger joint structure is a multi-head transfer structure, including multiple groups of connected transfer units. Each group of transfer units includes a first joint, a second joint, an outer sleeve nut, a compression gasket, and an O-ring; the second joints in each group of transfer units are of an integrated structure form. Each second joint is processed with an annular groove and a compression gasket groove from the outside to the inside for installing the O-ring and the compression gasket; the first joint is sleeved outside the second joint, with the front end abutted against the compression gasket, and the outer end is processed with an external thread for threaded cooperation with the outer sleeve nut. After the outer sleeve nut is screwed onto the first joint, axially, the front end of the first joint abuts tightly against the compression gasket, and radially, the first joint compresses the O-ring, and the transfer seal is realized through the compression gasket and the O-ring. The outer sleeve nut is provided with a compression gasket insertion hole. When the outer sleeve nut is screwed onto the first joint to the position of the compression gasket groove, the compression gasket is inserted into the compression gasket groove through the compression gasket insertion hole, and the outer sleeve nut continues to be screwed in until it abuts against the compression gasket.

[0052] Preferably, the second joint is processed with a double-channel annular groove to install a double O-ring to ensure sealing.

[0053] When the water supply pump of the water replenishing device fails and needs to be replaced, the non-welded plunger joint structure can achieve fast and convenient replacement, and at the same time, this structure can reduce the processing difficulty of parts.

[0054] The water supply device needs to meet the requirements of launch mechanics conditions and medium compatibility. The installation base plate is a fixing plate for the single machines and components in the device, which does not come into contact with the working medium, but needs to meet the strength and stiffness requirements under launch conditions. Therefore, aluminum alloy 2A12 with better mechanical properties is selected, which not only meets the stiffness and strength requirements but also lightens the weight of the device. The parts in the water supply device that come into contact with the working medium need to meet the medium compatibility. According to the test results, titanium alloy TC4R is selected for metal materials, and silicone rubber is used for non-metallic materials.

[0055] The water supply device of the present invention integrally and removably mounts the single machines on the installation base plate (or integrally and removably mounts several single machines with a higher degree of integration after combining them into several functional modules on the installation base plate). The pipelines between the single machines are integrated in the valve body component base body or connected by quick-connect joints or plunger joint structures of hoses, realizing the integration of the water supply device and improving the convenience of disassembling the single machines; at the same time, the installation base plate adopts a hollow structure design, and weight-reducing grooves are processed on the valve body component base body of the first module, the bracket of the second module, and the conductance sensor base of the third module, realizing the light weight of the water supply device.

[0056] The present invention has been described in detail above in conjunction with specific embodiments and exemplary examples. However, these descriptions should not be construed as limiting the present invention. Those skilled in the art understand that without departing from the spirit and scope of the present invention, various equivalent substitutions, modifications, or improvements can be made to the technical solutions of the present invention and their implementation manners, and these all fall within the scope of the present invention. The protection scope of the present invention shall be subject to the appended claims.

[0057] The content not described in detail in the specification of the present invention belongs to the well-known technology of those skilled in the art.

Claims

1. A modular, integrated, lightweight water supply device capable of switching between different states, characterized in that: Including: An inlet switching valve, an outlet switching valve, a water supply check valve, a water replenishing check valve, three sets of disconnect connectors, a bubble viewer, a bubble filter, two sets of pressure sensors, two sets of conductivity sensors, and a water supply pump with a controller. The above single machines are integrated on an installation base plate; The three sets of disconnect connectors are used to achieve quick connection with an external system; the first disconnect connector is connected to a special water tank, the second disconnect connector is connected to a general water tank, and the third disconnect connector is connected to a photosynthesis system; The inlet switching valve includes a valve body, a water supply inlet, a water replenishing inlet, and an inlet switching valve outlet. The water supply inlet is connected to the first disconnect connector to achieve communication with the special water tank; the water replenishing inlet is connected to the second disconnect connector to achieve communication with the general water tank; the inlet switching valve outlet is connected to the bubble viewer, and the working medium enters the bubble viewer from the inlet switching valve; The outlet switching valve includes a valve body, a water supply outlet, a water replenishing outlet, and an outlet switching valve inlet. The outlet switching valve inlet is connected to the first conductivity sensor to receive water from the special water tank or the general water tank; the water supply outlet is connected to the third disconnect connector and then communicates with the photosynthesis system; the water replenishing outlet is sequentially connected to a first internal joint, a water purifier, and a second internal joint, and the purified water from the water purifier is sent back to the water supply device through the second internal joint; The first conductivity sensor is located downstream of the bubble viewer, and the second conductivity sensor is located downstream of the first pressure sensor for on-line monitoring of the conductivity of the working medium; The first pressure sensor is located downstream of the second internal joint, and the second pressure sensor is located at the outlet of the water supply pump, respectively for on-line monitoring of the pressure of the purified working medium entering the water supply device and the pumped working medium; The inlet of the bubble viewer is connected to the inlet switching valve, and the outlet is connected to the first conductivity sensor for observing visible bubbles in the working medium; The bubble filter is located on the water replenishing pipeline, with the second pressure sensor upstream and the water replenishing check valve downstream, for removing gas in the purified working medium, and the purified working medium is directly sent to the special water tank; The water supply check valve is installed on the water supply pipeline between the outlet switching valve and the third disconnect connector, and the water replenishing check valve is installed on the water replenishing pipeline between the bubble filter and the first disconnect connector, respectively for ensuring the one-way flow of the working medium in the water supply mode and the water replenishing mode; The water supply pump acts in the water replenishing state, i.e., it is located on the water replenishing pipeline, and conveys the purified working medium to the special water tank to provide water for the normal operation of the component. The water supply pump controller controls the working state of the water supply pump.

2. The modular, integrated, lightweight water supply device capable of realizing different state switching according to claim 1, characterized in that The outlet of the bubble viewer is connected to the inlet of the first conductivity sensor through a first hose; The outlet of the first conductivity sensor is connected to the outlet switching valve through a second hose; The first pressure sensor is connected to the inlet of the second conductivity sensor through a third hose; The outlet of the second conductivity sensor is connected to the inlet of the water supply pump through a fourth hose.

3. The modular, integrated, lightweight water supply device capable of realizing different state switches according to claim 2, characterized in that, The first hose, the second hose, the third hose, and the fourth hose are connected to the single machines at both ends thereof by quick connectors; the quick connectors are of a threaded connection structure and are sealed by double O-rings for plugging.

4. The modular, integrated, lightweight water supply device capable of achieving different state switches according to claim 1, characterized in that The water supply device is divided into four functional modules. The first module consists of an inlet switching valve, an outlet switching valve, a water supply check valve, a water replenishing check valve, three disconnect switches, and a bubble viewer. Each of the above-mentioned single machines is installed on the base of the valve body component, and the base of the valve body component is installed on the mounting base plate through threaded fasteners; The second module consists of two pressure sensors and a bubble filter. The two pressure sensors and the bubble filter are installed on a bracket, and the bracket is fixed to the mounting base plate through threaded fasteners; The third module consists of two conductivity sensors and quick-connect joints for the inlet and outlet of the conductivity sensors. The two conductivity sensors and their quick-connect joints for the inlet and outlet of the conductivity sensors are installed on the base of the conductivity sensor, and the base of the conductivity sensor is installed on the mounting base plate through threaded fasteners; The fourth module consists of a water supply pump with a controller, which is installed on the mounting base plate through threaded fasteners.

5. The modular, integrated, lightweight water supply device capable of realizing different state switches according to claim 4, characterized in that, On the base of the valve body component of the first module, check valve and switching valve holes are provided. The water supply check valve, the water replenishing check valve, the inlet switching valve and the outlet switching valve are embedded into the base of the valve body component and fixed on the base of the valve body component by threaded connectors.

6. The modular, integrated, lightweight water supply device capable of achieving different state switches according to claim 4, characterized in that, The flow channels between the single machines of the first module are all built into the base of the valve body component. Preferably, the inner cavity of the flow channel is processed by abrasive flow machining.

7. The modular, integrated, lightweight water supply device capable of realizing different state switches according to claim 4, characterized in that, Weight-reducing grooves are machined on the base of the valve body component of the first module, the bracket of the second module, and the base of the conductivity sensor of the third module.

8. The modular, integrated, lightweight water supply device capable of realizing different state switches according to claim 1, characterized in that, The inlet of the water supply pump is connected to the fourth hose through a non-welded plunger joint structure, and the outlet of the water supply pump is connected to the second pressure sensor through a non-welded plunger joint structure; The non-welded plunger joint structure is a multi-head transfer structure, which includes multiple groups of connected transfer units. Each group of transfer units includes a first joint, a second joint, an outer sleeve nut, a pressing gasket, and an O-ring; the second joints in each group of transfer units are of an integrated structure form. Each second joint is successively processed with an annular groove and a pressing gasket groove from the outside to the inside for installing the O-ring and the pressing gasket; the first joint is sleeved outside the second joint, the front end abuts against the pressing gasket, and the outer end is processed with an external thread to be threadedly matched with the outer sleeve nut. After the outer sleeve nut is screwed onto the first joint, axially, the front end of the first joint abuts tightly against the pressing gasket, and radially, the first joint presses the O-ring. The transfer seal is achieved through the pressing gasket and the O-ring; a pressing gasket insertion hole is provided on the outer sleeve nut. When the outer sleeve nut is screwed onto the first joint to the position of the pressing gasket groove, the pressing gasket is inserted into the pressing gasket groove through the pressing gasket insertion hole, and the outer sleeve nut continues to be screwed until it abuts against the pressing gasket.

9. The modular, integrated, lightweight water supply device capable of realizing different state switches according to claim 1, wherein, The mounting base plate is connected to the bulkhead through threaded fasteners; positioning pin holes are provided at asymmetric positions on both sides of the mounting base plate, and positioning pins are used for positioning on the bulkhead.

10. A water supply method, characterized in that, Implementing with the modular, integrated, lightweight water supply device capable of realizing different state switches described in any one of claims 1 to 9, includes: Under normal water supply flow path, the working medium in the special water tank enters the device through the first disconnector. The make-up check valve is in the cut-off state. First, it passes through the inlet switching valve for flow direction selection and switches to the "water supply" state. The working medium enters the bubble viewer from the outlet of the inlet switching valve to observe the visible bubbles in the working medium. The outlet of the bubble viewer is connected to the inlet of the first conductivity sensor through the first hose. The first conductivity sensor monitors the water conductivity of the working medium in real time. Subsequently, the working medium passes from the outlet of the first conductivity sensor through the second hose and is connected to the outlet switching valve. After switching to the "water supply" state and passing through the flow direction selection of the outlet switching valve, it enters the third disconnector through the open water supply check valve to supply water to the downstream components. Under the on-line make-up water flow path, the working medium in the general water tank enters the water supply device through the second disconnector. First, it passes through the inlet switching valve for flow direction selection and switches to the "make-up water" state. The working medium enters the bubble viewer from the outlet of the inlet switching valve to observe the visible bubbles in the working medium. The outlet of the bubble viewer is connected to the inlet of the first conductivity sensor through the first hose. The first conductivity sensor monitors the water conductivity of the working medium in real time. Subsequently, the working medium passes from the outlet of the first conductivity sensor through the second hose and is connected to the outlet switching valve. The outlet switching valve switches to the "make-up water" state. The working medium enters the water purifier through the first internal joint for water quality treatment. The treated working medium enters the water supply device again through the second internal joint. After monitoring the inlet pressure by the first pressure sensor, it enters the inlet of the second conductivity sensor through the third hose. The second conductivity sensor monitors the water conductivity of the working medium in real time. Subsequently, the working medium passes from the outlet of the second conductivity sensor through the fourth hose and is connected to the inlet of the water supply pump. After being pressurized by the water supply pump, the working medium is monitored for its pressure in real time by the second pressure sensor at the outlet of the water supply pump. Subsequently, it enters the bubble filter to remove the excess bubbles in the working medium. Finally, after passing through the open make-up check valve, the water is stored in the special water tank through the first disconnector.

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