Domestic water supply system and supply method for deep-depth saturation diving habitat

Abstract

The present invention relates to a domestic water supply system and supply method for a deep-depth saturation diving habitat, the domestic water supply system comprising a habitat requiring water consumption and a water supply pipeline for supplying water to the habitat, wherein the pipeline comprises a water pump set, an energy accumulator, a safety valve, check valves, a serpentine cooling pipe, and an induction heating coil. After flowing through the above components, a water flow flows into the habitat. A third check valve divides the water supply pipeline into two sections, and the internal pressure of the water supply pipeline downstream of the third check valve is always the same as the internal pressure of the habitat. The pressure of the water supply pipeline upstream of the third check valve is zero when the water pump set does not operate. When water is needed in the habitat, a water valve in the habitat is opened, the water pump set starts to operate, the internal pressure of the water supply pipeline downstream of the water pump set gradually increases until same exceeds the internal pressure of the water supply pipeline in communication with the habitat, the third check valve is opened, and the water flow flows through a heating section and is then inputted into the habitat for use.

Description

Life water supply system and supply method for large-depth saturation diving habitat TECHNICAL FIELD

[0001] The present application relates to the technical field of diving habitat equipment, in particular to a life water supply system and supply method for a large-depth saturation diving habitat. BACKGROUND

[0002] There are two kinds of diving technology for human beings to dive into the sea to carry out various operations, namely conventional diving and saturation diving.

[0003] Conventional diving is also called air diving. In this type of diving, the safe diving depth of a diver is not more than 60 m, and the operation time is short, so it is impossible to perform continuous, heavy and long-term large-scale underwater operation tasks.

[0004] Saturation diving refers to that a diver is exposed to a high-pressure environment for a long time, so that the gas in each tissue of the diver is fully saturated. On this basis, as long as the environmental pressure does not change, the decompression time is equal regardless of the exposure time.

[0005] The saturation diving system is composed of a habitat and a diving bell and other equipment. The approximate process of saturation diving is as follows: before the start of saturation diving operation, the diver lives in the habitat, and is pressurized according to the specified procedure to make the inert gas in the diver's body saturated at the predetermined operation depth. When the diver needs to perform diving operation, the diver enters the diving bell with the same pressure from the habitat, and then the diving bell carrying the diver is hoisted by a winch to the seabed diving operation site. After the diver puts on a diving suit, the diver swims out of the diving bell to the sea to perform operation. After completing the seabed diving operation, the diver returns to the diving bell, and then the diving bell is recovered to the mother ship through the diving bell hoisting system, and the diver returns to the habitat to live and rest.

[0006] The habitat is an important living place for the diver (the diver can live in it for dozens of days), and the life water supply system of the habitat is used to guarantee the water demand (shower, wash, toilet flushing) of the diver in the habitat. The system has the following characteristics:

[0007] 1. Since the habitat is a high-pressure cabin with a small space, the main equipment of the life water system needs to be arranged outside the habitat; the environmental pressure in the cabin is high (for example, the internal maximum pressure of a 500 m saturation diving habitat is 5 MPa), and the environmental pressure in the cabin is divided into a pressurization phase, a constant pressure phase and a decompression phase, each phase lasts for a long time, and the pressurization and decompression curves are strictly regulated; therefore, the water supply pressure entering the habitat needs to adapt to the change of the environmental pressure in the habitat.

[0008] 2. The amount of water used in the cabin is large. Taking the example of the diver shower, according to GB50015-2003 "Building Water Supply and Drainage Design Specification", the shower water flow is 9L / min, according to 4 divers, each day showering for 30 minutes, only daily showering uses 1080L of water;

[0009] 3. High reliability requirement. Divers live in a high pressure environment in the living cabin for a long time, are extremely sensitive to various stimuli, and are more prone to decompression sickness, threatening the safety of the divers, so the domestic water supply system must have high reliability. TECHNICAL PROBLEM

[0010] The "saturated diving living cabin domestic water supply system" realizes the domestic water supply in the living cabin by setting a large-capacity cold and hot water tank and inflating the water tank, which is applied to the 300-meter and 500-meter saturated diving test in China, but has the following disadvantages: the cold and hot water tank is a pressure-resistant water tank, and due to the large amount of water used every day, the cold and hot water tank is large in size;

[0011] The "large-depth saturated diving living cabin domestic water supply system" solves the problem of large size of the traditional cold and hot water tank by pump+water heater, and solves the problem of change of water supply pressure with the cabin environment pressure by a specially designed overflow valve, but in actual use, the working performance of the specially designed overflow valve is greatly affected by the machining precision, and the valve works continuously for a long time when the diver uses water, which reduces the reliability of the entire domestic water system. In addition, the hot water at the outlet of the water heater is introduced into the inlet of the pump, and the pump works at a high temperature for a long time, which reduces the reliability of the pump. TECHNICAL SOLUTION

[0012] In view of the above-mentioned shortcomings in the prior art, the present applicant provides a large-depth saturated diving living cabin domestic water supply system and a supply method, which can reliably provide divers with the required cold and hot water for showering, washing, flushing the toilet, etc.

[0013] The technical scheme adopted by the present application is as follows:

[0014] A large-depth saturated diving living cabin domestic water supply system, comprising a water-using living cabin, a water supply pipeline for supplying water to the living cabin,

[0015] The water supply pipeline is in communication with a water inlet valve, and the pipeline comprises a water pump group, an accumulator, a safety valve, a check valve, a serpentine cooling pipe and an induction heating coil. After the water flow passes through the above-mentioned components, it flows into the living cabin. The check valve is provided with at least one, and the check valve divides the water supply pipeline into two sections. Before water supply, the pressure after the check valve is higher than the pressure before the check valve, and during water supply, the pressure after the check valve is slightly lower than the pressure before the check valve,

[0016] The toilet ball valve, the basin ball valve and the shower ball valve are arranged in the living cabin.

[0017] As a further improvement of the above technical solution:

[0018] The water pump group comprises a normal water pump and a standby water pump, and the normal water pump and the standby water pump are respectively connected with a first check valve and a second check valve,

[0019] A third check valve is arranged at a middle position of the water supply pipeline, the third check valve divides the water supply pipeline into two sections, and the third check valve realizes water supply on-off through the pressure difference of water pressure in the pipelines on both sides thereof.

[0020] The water inlet side of the third check valve is connected with the water pump group and the safety valve, the water outlet of the third check valve is divided into two paths, one path is connected with the energy accumulator, and the other path is sequentially connected with the serpentine cooling pipe and the induction heating coil; the temperature sensor is arranged behind the induction heating coil.

[0021] The energy accumulator is connected with the air path of the living cabin, and a ball valve is arranged on the air path.

[0022] The controller controls the operation of the water pump group and the induction heating coil.

[0023] The shower head is in a conical structure and is internally provided with a spherical surface; the water flow entering the shower head impacts on the spherical surface.

[0024] A kind of life water supply system for large depth saturation diving cabin, the method for supplying water to each water component in the living cabin, the water supply pipeline adjusts water supply pressure according to the pressure in the living cabin, and water supply includes the following steps:

[0025] The third check valve divides the water supply pipeline into two sections, which are respectively connected with the water inlet valve and the living cabin, when water is not used, the pressure of the pipeline behind the third check valve is equal to the cabin air pressure, and the third check valve is in a closed state,

[0026] When water is needed in the living cabin, the water valve in the living cabin is opened, and is connected with the corresponding water supply pipeline section, the pressure in the pipeline is still equal to the cabin air pressure; at this time, the third check valve still cuts off the two sections of the water supply pipeline,

[0027] The water pump group is started, the internal pressure of the water supply pipeline connected behind the water pump group gradually increases until greater than the internal pressure of the water supply pipeline connected with the living cabin, the third check valve is opened, the water flow flows through the heating link, and is input into the living cabin for use.

[0028] As a further improvement of the above technical solution:

[0029] When showering, the whole system working process is as follows:

[0030] Opening the ball valve for shower, the water pump group starts, the water inlet valve supplies water, until the water pressure in the pipeline after the water pump group is greater than the pressure of the living cabin, the third check valve is opened by water pressure, the water flow flows through the heating link, and then is input to the shower sprinkler for use.

[0031] When the basin is used, the whole system working process is as follows:

[0032] Opening the ball valve for basin, the water pump group starts, the water inlet valve supplies water, until the water pressure in the pipeline after the water pump group is greater than the pressure of the living cabin, the third check valve is opened by water pressure, the water flow flows through the heating link, and then is input to the shower sprinkler for use.

[0033] When the toilet is used, the whole system working process is as follows:

[0034] Opening the ball valve for basin, the water pump group starts, the water inlet valve supplies water, until the water pressure in the pipeline after the water pump group is greater than the pressure of the living cabin, the third check valve is opened by water pressure, the water flow flows through the heating link, and then is input to the shower sprinkler for use. Beneficial effects

[0035] The present application adopts the water supply scheme of pump+induction heating, solves the problem of large volume of the prior art adopting the cold and hot water tank scheme;

[0036] The present application is provided with an accumulator for solving the flow pulsation problem when water is used;

[0037] The circuit of the present application is pressure-resistant, and has no special design components, and has very high reliability. BRIEF DESCRIPTION OF DRAWINGS

[0038] Fig. 1 is a schematic diagram of the water supply system structure of the present application.

[0039] Fig. 2 is a sectional view of the shower structure of the present application.

[0040] Fig. 3 is a front view of the shower structure of the present application.

[0041] Among them: 1, water inlet valve; 2, water supply pipeline; 3, living cabin; 4, controller;

[0042] 201, first quantitative water pump; 202, first check valve; 203, second quantitative water pump; 204, second check valve; 205, accumulator; 206, safety valve; 207, third check valve; 208, serpentine cooling pipe; 209, induction heating coil; 210, water inlet pipe; 211, temperature sensor; 212, first motor; 213, second motor;

[0043] 301, toilet ball valve; 302, basin ball valve; 303, shower ball valve; 304, shower sprinkler; 305, toilet hard pipe; 306, basin hard pipe; 307, shower hard pipe; 308, conical surface; 309, bottom plate; 310, spherical surface; 311, water outlet hole. Embodiments of the present application

[0044] The specific embodiments of the present application will be described below with reference to the accompanying drawings.

[0045] As shown in Fig. 1, the life water supply system for the large-depth saturation diving habitat of the present embodiment comprises a water-using habitat 3, a water supply pipeline 2 for supplying water to the habitat 3,

[0046] The water supply pipeline 2 is communicated with a water inlet valve 1, and comprises a water pump set, an accumulator 205, a safety valve 206, a check valve, a serpentine cooling pipe 208, and an induction heating coil 209 on the pipeline. After the water flow passes through the above-mentioned components, the water flow enters the habitat 3. The check valve is provided with at least one, and the check valve divides the water supply pipeline 2 into two sections, and the water supply is realized by the pressure difference between the two sections,

[0047] The habitat 3 is provided with a ball valve 301 for a toilet, a ball valve 302 for a basin, and a ball valve 303 for a shower, which are independent of each other.

[0048] The water pump set comprises a normal water pump and a standby water pump, and the normal water pump and the standby water pump are respectively connected with a first check valve 202 and a second check valve 204.

[0049] A third check valve 207 is arranged at the middle position of the water supply pipeline 2, and the third check valve 207 realizes the water supply by the pressure difference between the water pressures in the two sides of the third check valve 207.

[0050] The water inlet side of the third check valve 207 is the water pump set and the safety valve 206, and the water outlet side of the third check valve 207 is divided into two routes, one of which is the accumulator 205, and the other of which is sequentially the serpentine cooling pipe 208 and the induction heating coil 209. A sensor is arranged at the induction heating coil 209.

[0051] The accumulator 205 is communicated with the air path of the habitat 3, and a ball valve is arranged on the air path.

[0052] The controller 4 controls the operation of the water pump set and the induction heating coil 209.

[0053] The shower head 304 is a conical structure, and is provided with a spherical surface 310 inside. The water flow entering the shower head 304 impacts on the spherical surface 310.

[0054] The method for supplying water to each water-using component in the habitat 3 by using the life water supply system for the large-depth saturation diving habitat 3 of the present embodiment adjusts the water supply pressure of the water supply pipeline 2 according to the pressure in the habitat 3, and the water supply comprises the following steps:

[0055] The third check valve 207 divides the water supply pipeline 2 into two sections, which are connected with the water inlet valve 1 and the living cabin 3 respectively. When water is not used, the pressure of the pipeline after the third check valve 207 is equal to the cabin air pressure, and the third check valve 207 is in a closed state,

[0056] When water is needed in the living cabin 3, the water valve in the living cabin 3 is opened to communicate with the corresponding water supply pipeline 2 section, and the pressure in the pipeline is still equal to the cabin air pressure. At this time, the third check valve 207 still cuts off the two sections of the water supply pipeline (2),

[0057] Start the water pump group, the water inlet valve 1 supplies water, the internal pressure of the water supply pipeline 2 connected with the water inlet valve 1 gradually increases until it is greater than the internal pressure of the water supply pipeline 2 connected with the living cabin 3, the third check valve 207 is opened, and the water flow flows through the heating link and is input into the living cabin 3 for use.

[0058] When taking a shower, the whole system working process is as follows:

[0059] Open the shower ball valve 303, start the water pump group, the water inlet valve 1 supplies water, and the water pressure in the pipeline after the water pump group is greater than the pressure of the living cabin 3, the third check valve 207 is opened by the water pressure, the water flow flows through the heating link and is input into the shower sprinkler 304 for use.

[0060] When using the basin, the whole system working process is as follows:

[0061] Open the basin ball valve 302, start the water pump group, the water inlet valve 1 supplies water, and the water pressure in the pipeline after the water pump group is greater than the pressure of the living cabin 3, the third check valve 207 is opened by the water pressure, the water flow flows through the heating link and is input into the shower sprinkler 304 for use.

[0062] When using the toilet, the whole system working process is as follows:

[0063] Open the toilet ball valve 301, start the water pump group, the water inlet valve 1 supplies water, and the water pressure in the pipeline after the water pump group is greater than the pressure of the living cabin 3, the third check valve 207 is opened by the water pressure, the water flow directly flows out through the toilet ball valve 301 for use.

[0064] The specific structure and working principle of the present application are as follows:

[0065] As shown in FIG. 1, it is a whole structure schematic diagram of the present application. According to the direction in the figure, from left to right, in turn, there are the water inlet valve 1 connected with the external water source, the water supply pipeline 2, and the water end living cabin 3 shown by a circular ring frame.

[0066] As shown in Fig. 1, the water supply pipeline 2 includes a first constant water pump 201 and a second constant water pump 203 in parallel, and the water outlets of the first constant water pump 201 and the second constant water pump 203 are respectively connected with a first check valve 202 and a second check valve 204. The first constant water pump 201 and the second constant water pump 203 are respectively provided with a first motor 212 and a second motor 213 as power sources.

[0067] In the above structure, the present scheme provides two parallel water pumps, the first constant water pump 201, the first motor and the first check valve 202 are common parts, the second constant water pump 203 and the second motor are standby parts, and are used only when the common set of water pump and motor fails. When the standby water pump works, its power source is a common motor, and the rotating speed is unchanged.

[0068] The output ends of the first check valve 202 and the second check valve 204 are again gathered into the same pipeline, and the output end of the pipeline is divided into two branches, and is respectively connected with a safety valve 206 and a third check valve 207.

[0069] The outlet of the third check valve 207 is divided into two branches, one of which is connected with an energy accumulator 205, and the other of which is connected with a serpentine cooling pipe 208 and an induction heating coil 209 in sequence and then connected with a water inlet outside the living cabin 3. The energy accumulator 205 is an air-filled energy accumulator 205, and the air inlet of the energy accumulator 205 is connected into the living cabin 3 through an air path ball valve to ensure that the air pressure of the energy accumulator 205 and the ambient pressure in the living cabin 3 are always consistent. It should be noted that the pressure in the living cabin 3 is a real-time changing pressure, including the stages of pressurization, pressure stabilization and pressure reduction. The air pressure of the energy accumulator 205 is consistent with the cabin pressure at each stage.

[0070] The water outlets in the living cabin 3 are respectively connected with a ball valve 301 for a toilet, a ball valve 302 for a basin and a ball valve 303 for a shower through hard pipes, that is, the water outlets in the living cabin 3 are connected with three water using devices. The outlet of the ball valve 303 for a shower is further connected with a shower head 304.

[0071] In order to ensure the appropriate temperature, a temperature sensor 211 is further arranged in the corresponding pipeline after the induction heating coil 209 for detecting the water temperature in the pipeline.

[0072] A controller 4 controls the motors, the induction heating coil 209 and receives the signal of the temperature sensor 211.

[0073] In the above structure, the pipelines in the living cabin 3 all adopt hard pipes.

[0074] The structure of the shower head 304 is shown in FIG. 2 and FIG. 3, which adopts a cone structure as a whole, including a conical surface 308, a bottom plate 309 at the large end of the conical surface 308, and a spherical surface 310 built in the cone. The conical surface 308 and the bottom plate 309 form a cavity, and the bottom plate 309 is provided with a circumferential array of water outlets 311.

[0075] In any cross section, the tangent of the spherical surface 310 and the generatrix of the cone structure are perpendicular, and the line connecting the center of the spherical surface 310 and the center of the water outlet at the small end of the cone structure is perpendicular to the bottom plate 309. The structural strength of the shower head 304 is designed according to the pressure P (P is the highest pressure in the living cabin) borne by the cavity inside itself.

[0076] When in use, the parameters of each device are limited as follows:

[0077] The set pressure of the safety valve 206 is 1.1P;

[0078] When selecting the hard pipes used in the living cabin 3, the ball valve 301 for the toilet, the ball valve 302 for the sink, and the ball valve 303 for the shower, the working pressure registration is determined according to the highest pressure of the system, i.e. 1.1P;

[0079] When the motor operates at the rated speed, the flow rate of the constant water pump is required to be between 8-10L / min.

[0080] The working principle of the water used in the cabin is introduced below.

[0081] In order to facilitate the description of the flow of gas and fluid in the pipeline, the hard pipe connected with the toilet ball valve 301 is referred to as the toilet hard pipe 305, the hard pipe connected with the sink ball valve 302 is referred to as the sink hard pipe 306, and the hard pipe connected with the shower ball valve 303 is referred to as the shower hard pipe 307. The pipeline where the induction heating coil 209 is located is referred to as the water inlet pipe 210.

[0082] When taking a shower, the working principle of the whole system is as follows:

[0083] The diver in the living cabin 3 opens the shower ball valve 303, at which time the pressure in the pipeline after the third check valve 207 is P1 (the pressure in the living cabin); the controller 4 detects that the shower ball valve 303 is opened, starts the first motor according to the rated speed of the first motor, thereby driving the first constant water pump 201 to rotate, and the tap water provided by the external water source passes through the water inlet valve 1, the first constant water pump 201, the first check valve 202, and reaches the inlet of the third check valve 207; when the inlet pressure of the third check valve 207 rises to P2, which is slightly higher than P1, the third check valve 207 is opened, and the tap water enters the living cabin 3 after passing through the coiled cooling pipe 208 and the induction heating coil 209, and is then sprayed out through the shower ball valve 303 and the shower head 304 for use by the diver;

[0084] In the above water supply process, the induction heating coil 209 heats the tap water passing through the water inlet pipe 210 in real time, the temperature sensor 211 detects the water temperature in the water inlet pipe 210 in real time and feeds back to the controller 4, so that the water temperature of the water inlet pipe 210 input into the cabin is between 35-37 degrees Celsius. At the same time, the accumulator 205 absorbs the flow pulsation generated by the water pump in real time. The serpentine cooling pipe 208 forms thermal isolation between the water inlet pipe 210 and the third check valve 207 by natural heat dissipation, so as to ensure that the working temperature of the water pump is not affected by the induction heating coil 209.

[0085] When the shower head 304 sprays water, the outlet pressure P2 of the water pump group is only slightly higher than the real-time pressure PI in the living cabin 3. The water entering the shower head 304 is first sprayed onto the spherical surface 310, buffered by the spherical surface 310, and then sprayed out of the water outlet hole 311 for use by the diver. In the whole process, the water outlet of the water pump group is completely used for showering, and the whole system has no overflow, at this time the whole water supply system is in load-sensitive working condition, that is, the flow and pressure follow the actual load required.

[0086] When the diver closes the shower ball valve 303, the monitor detects that the shower ball valve 303 is closed, and the corresponding motor stops rotating, and the whole water supply system stops working.

[0087] When the diver closes the shower ball valve 303, the monitor detects that the shower ball valve 303 is closed, and the corresponding motor stops rotating, and the whole water supply system stops working.

[0088] When the diver opens the sink ball valve 302 in the living cabin 3, the pressure in the pipeline after the third check valve 207 is PI (the pressure in the living cabin), the controller 4 detects that the sink ball valve 302 is opened, starts the first motor at a speed lower than the rated speed of the first motor by one gear, drives the first constant water pump 201 to rotate, and the tap water passes through the water inlet valve 1, the first constant water pump 201, the first check valve 202, and reaches the inlet of the third check valve 207. When the inlet pressure of the third check valve 207 rises to P2, which is slightly higher than the cabin pressure PI, the third check valve 207 is opened, and the tap water enters the living cabin 3 after passing through the serpentine cooling pipe 208 and the water inlet pipe 210, and then sprays out after passing through the sink hard pipe 306 and the sink ball valve 302 in the cabin, and is used by the diver.

[0089] In the above water supply process, the heating induction coil heats the tap water in real time; the temperature sensor 211 senses the water temperature in the pipe in real time and feeds back to the controller 4; and the water temperature of the water inlet pipe 210 sent into the living cabin 3 is maintained between 35-37 degrees Celsius.

[0090] At the same time, the accumulator 205 absorbs the flow pulsation generated by the water pump in real time. The serpentine cooling pipe 208 forms thermal isolation between the water inlet pipe 210 and the third check valve 207 by natural heat dissipation, so as to ensure that the working temperature of the water pump is not affected by the induction heating coil 209.

[0091] When water is sprayed from the sink faucet, the outlet pressure P2 of the water pump unit is only slightly higher than the real-time pressure P1 inside living compartment 3. The water output from the water pump unit is entirely used by the sink, and there is no overflow in the entire system. At this time, the entire water supply system is in a load-sensitive condition, that is, the flow rate and pressure follow the actual load requirements.

[0092] When the diver closed the ball valve 302 for the sink, the monitor detected that the ball valve was closed, and the corresponding water pump and motor also stopped running, causing the entire water supply system to stop working.

[0093] When using the toilet, the entire system works as follows:

[0094] When the diver in living chamber 3 opens the toilet ball valve 301, the pressure in the pipeline after the third check valve 207 is P1 (the pressure inside the living chamber). The controller 4 detects that the sink ball valve 302 is open and starts the first motor at a speed one level lower than the rated speed of the first motor, driving the first metering water pump 201 to rotate. Tap water passes through the inlet valve 1, the first metering water pump 201, and the first check valve 202 to reach the inlet of the third check valve 207. When the pressure at the inlet of the third check valve 207 rises to P2, which is slightly higher than the pressure inside the chamber P1, the third check valve 207 is opened. Tap water enters the living chamber 3 after passing through the serpentine cooling pipe 208 and the inlet pipe 210, and then sprays out through the toilet hard pipe 305 and the toilet ball valve 301 inside the chamber, and is used by the diver.

[0095] During the water supply process described above, the heating induction coil does not heat; at the same time, the accumulator 205 absorbs the flow pulsation generated by the water pump in real time.

[0096] When water is ejected from the toilet, the outlet pressure P2 of the water pump unit is only slightly higher than the real-time pressure P1 inside living quarters 3. The water output from the water pump unit is entirely used by the toilet, and there is no overflow in the entire system. At this time, the entire water supply system is in a load-sensitive condition, that is, the flow rate and pressure follow the actual load requirements.

[0097] When the diver closed the toilet ball valve 301, the monitor detected that the ball valve was closed, and the corresponding water pump and motor also stopped running, and the entire water supply system stopped working.

[0098] The water pump, accumulator 205, check valve, and safety valve 206 are all commercially available mature products, and all operate under normal temperature tap water medium, with extremely high reliability; the motor is also a commercially available mature product; the ball valve is a commercially available product, and ball valves with working medium of 35-37℃ and below tap water are extremely mature; the shower head 304 has no moving parts inside, making this component also extremely reliable; therefore, the entire system has extremely high reliability.

[0099] The advantage of this invention is that it adopts a water supply scheme of pump + induction heating, which solves the problem of large size of traditional cold and hot water tank schemes. During the water supply process, the system has no overflow, the outlet pressure of the water pump group is only slightly higher than the pressure of the living quarters, and the entire water supply system is in a load-sensitive condition, that is, the flow rate and pressure follow the actual load requirements.

[0100] In this invention, the inflation pressure of the accumulator 205 is always consistent with the environmental pressure inside the living compartment 3, which can effectively maintain the stability of the water flow and solve the problem of flow pulsation when using water.

[0101] The above description is an explanation of the present invention and not a limitation thereof. The scope of the present invention is defined by the claims. Within the scope of protection of the present invention, any form of modification may be made.

Claims

1. A life water supply system for a large depth saturation diving habitat, characterized by: The application relates to a water supply system for a living cabin (3) comprising a water supply pipeline (2) for supplying water to the living cabin (3), The water supply pipeline (2) is communicated with a water inlet valve (1), and the pipeline comprises a water pump group, an accumulator (205), a safety valve (206), a check valve, a serpentine cooling pipe (208) and an induction heating coil (209); water flows through the above-mentioned components and then flows into the living cabin (3); the check valve is provided with at least one, and the check valve divides the water supply pipeline (2) into two sections, The living cabin (3) is provided with a ball valve (301) for a closestool, a ball valve (302) for a wash basin and a ball valve (303) for a shower.

2. The life water supply system for a large-depth saturation diving habitat according to claim 1, characterized in that: The water pump group comprises a normal water pump and a standby water pump, and the normal water pump and the standby water pump are respectively connected with a first check valve (202) and a second check valve (204), A third check valve (207) is arranged at a middle position of the water supply pipeline (2), and the third check valve (207) divides the water supply pipeline (2) into two sections.

3. The life water supply system for a large-depth saturation diving habitat according to claim 2, characterized in that: The water inlet side of the third check valve (207) is the water pump group and the safety valve (206), and the water outlet side of the third check valve (207) is the accumulator (205), the serpentine cooling pipe (208) and the induction heating coil (209); a temperature sensor is arranged behind the induction heating coil (209).

4. The life water supply system for a large-depth saturation diving habitat according to claim 1, characterized in that: The accumulator (205) is communicated with a gas pipeline of the living cabin (3), and a ball valve is arranged on the gas pipeline.

5. The life water supply system for a large-depth saturation diving habitat according to claim 1, characterized in that: The system further comprises a controller (4) for controlling the operation of the water pump group and the induction heating coil (209).

6. The life water supply system for a large-depth saturation diving habitat according to claim 1, characterized in that: The shower head (304) is a conical structure and is internally provided with a spherical surface (310); water flowing into the shower head (304) impacts on the spherical surface (310).

7. A method for supplying water to each water-using component in a habitat (3) using the life water supply system for a large-depth saturation diving habitat according to claim 1, characterized by, The water supply pipeline (2) adjusts water supply pressure according to the pressure in the living cabin (3), and the water supply comprises the following steps: The third check valve (207) divides the water supply pipeline (2) into two sections and is connected with the water inlet valve (1) and the living cabin (3); when water is not used, the pressure of the pipeline behind the third check valve (207) is equal to the cabin air pressure, and the third check valve (207) is in a closed state, When water is needed in the living cabin (3), the water valve in the living cabin (3) is opened and is communicated with the corresponding water supply pipeline (2) section; the pressure in the pipeline is still equal to the cabin air pressure; at this time, the third check valve (207) still divides the two water supply pipeline (2) sections, The water pump group is started, the internal pressure of the water supply pipeline (2) section connected behind the water pump group gradually increases until the internal pressure of the water supply pipeline (2) section connected with the living cabin (3), the third check valve (207) is opened, water flows through the heating link and is input into the living cabin (3) for use.

8. The water supply method according to claim 7, wherein When the shower is used, the whole system working process is as follows: The shower ball valve (303) is opened, the water pump group is started, the water inlet valve (1) supplies water, until the water pressure of the pipeline behind the water pump group is greater than the pressure of the living cabin (3), the third check valve (207) is opened by the water pressure, water flows through the heating link and is input into the shower head (304) for use.

9. The water supply method according to claim 7, wherein When the wash basin is used, the whole system working process is as follows: Opening the ball valve (302) for basin, the water pump group starts, the water inlet valve (1) gives water, until the water pressure in the pipe after the water pump group is greater than the pressure of the living cabin (3), the third check valve (207) is opened by water pressure, the water flow flows out for use after the heating link by the ball valve (302) for basin.

10. The water supply method according to claim 7, wherein When using the toilet, the whole system working process is: Opening the ball valve (301) for toilet, the water pump group starts, the water inlet valve (1) gives water, until the water pressure in the pipe after the water pump group is greater than the pressure of the living cabin (3), the third check valve (207) is opened by water pressure, the water flow directly flows out for use by the ball valve (301) for toilet.

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