37results about How to "Solve insufficient water pressure" patented technology

The invention discloses a full-automatic current-limiting non-negative pressure pipe network lamination water-supply device, wherein a pipe network is directly connected in series with a water pump to pressurize and supply water, thereby cancelling a middle process of secondary pollution which is caused by exposition and storing of water bodies of water ponds and water tanks and the like. Under the totally-enclosed environment, the condition of producing negative pressure is eliminated, and the device runs under constrained conditions and does not produce negative pressure, which avoids harmful impact to the pipe network. Even if negative is going to be produced, the marginal state to produce negative pressure can be eliminated, and the dual-function of prevention and elimination can guarantee that water flow state in the pipe network changes steadily and smoothly, and the pipe network runs steadily, and qualified running water is directly supplied to each water-consumed spot. The invention has the outstanding advantages of high energy-saving, high reliability, strong application performance, full-automatic control, and environmental protection.

The invention discloses a pressure stabilizing type non-negative pressure water supply system which comprises a water inlet pipe, a water inlet pipe pressure stabilizing device, a water supply power combination device and a water supply pipe. The water inlet pipe pressure stabilizing device is integrally arranged on the water inlet pipe communicated with a municipal tap water pipe, and the water inlet pipe is supplied to all users after being treated and pressurized by the water supply power combination device; the water inlet pipe pressure stabilizing equipment comprises a high-level water tank, a hydraulic cylinder and a pressurizing barrel, the high-level water tank is communicated with the water inlet pipe through an L-shaped pipe, a water replenishing valve is arranged on the L-shapedpipe, the bottom of the high-level water tank is communicated with the pressurizing barrel through a folding pipe, a first electromagnetic control valve and a third check valve are arranged on the folding pipe, and a liquid level sensor is arranged in the high-level water tank; and an output shaft of the hydraulic cylinder is fixedly connected with a piston in the pressurizing barrel, the bottomend of the pressurizing barrel is communicated with the water inlet pipe through a pressurizing pipe, and a second electromagnetic control valve and a fourth check valve are arranged on the pressurizing pipe.

The invention discloses a planting frame with watering function, which comprises an outer support rod, an inner support rod and a support ring; the outer support rod has a hollow accommodation chamber, the outer support rod is provided with a hollow, and the inner support rod has a hollow sprinkling chamber. The inner support rod is provided with a plurality of first through holes penetrating through its inner and outer walls; the support ring has a first flow channel arranged in a circumferential direction, and a plurality of second through holes are also arranged on the outer surface of the support ring; the inner support rod and the support There are also several connecting rods with second flow channels between the rings; several third through holes are opened on the outer surface of the connecting rods; Sealed. In the present invention, through the setting of the lower sealing plate, the lowest water outlet position of the support frame can be controlled. In this way, the problem of insufficient water pressure at the high position of the support frame can be effectively solved, and further, the pitaya plants can be sprayed from top to bottom. watering.

The invention relates to a water-trap structure and particularly relates to an anti-blocking water trap structure. The anti-blocking water trap structure comprises a water trap and a water discharging plug connected at the lowest position of the water trap, wherein the inlet end of the water trap is connected to a hot water pipe and a water feeding pipe respectively; the lowest point of a joint for connecting the hot water pipe and the water trap and the lowest position of the water trap are positioned at the same height; the water flowing direction at the water feeding position of the hot water pipe is same as that of the inner part of the water trap; the water feeding pipe is connected to a water discharging hole of sanitary ware; a vibratory piece is arranged in the water trap and is a movable thin piece fixed on the inner wall of the water trap; the plane of the vibratory piece is vertical to the water flowing direction; and the vibratory piece is arranged at the water feeding intersection between the hot water pipe and the water feeding pipe. The anti-blocking water trap structure has the beneficial effects that undissolved substances in the water trap are not easy to precipitate, and simultaneously, oil stains in the water trap are dissolved in hot water, so that the oil stains are taken away.

The invention discloses mute type secondary water supply equipment and relates to the technical field of water supply equipment. The equipment comprises a water tank; a water outlet pipe is installedon the lower side wall of the water tank; a horizontally-arranged floating plate is installed in the water tank in a sealed and sliding mode; an extending mechanism used for abutting against and pushing the floating plate is arranged in the water tank above the floating plate; a waterproof motor is installed in the floating plate; and a cleaning mechanism used for cleaning the inner wall of the water tank is in driving connection with the waterproof motor. According to the equipment, the water tank can be elastically supported through the arrangement of a damping mechanism, a buffering and damping effect on the working process of the water tank is achieved, and stable secondary water supply is guaranteed; extension can be achieved through the extending mechanism driven by the driving mechanism, an abutting and pushing effect on the floating plate is achieved, a pressurizing effect on water in the water tank is achieved, sufficient water pressure is guaranteed, and normal secondary water supply in a low-water-level state is achieved; and the arranged cleaning mechanism can be used for periodically cleaning the inner wall of the water tank, scale accumulation is avoided, and clean secondary water supply is achieved.

The invention discloses a cooperative operation system for wind power generation, pumped storage power generation and hydraulic supply. The cooperative operation system comprises a wind power generation system, a pumped storage power generation system, a hydraulic supply system and a coordinated control processing device; power supply circuits are arranged between an electric energy output end ofthe wind power generation system and a power source input end of a pumped storage water pump and between the electric energy output end of the wind power generation system and a power source input endof a water tower water pump respectively; the coordinated control processing device is used for calculating the remaining power generation amount of the wind power generation system and controlling the on and off of each power supply circuit according to the remaining power generation amount and running of the pumped storage water pump and a water tank water pump, so that the remaining power generation of the wind power generation system provides a working power source for the water tank water pump or the pumped storage water pump, and the priority of the water tank water pump for utilizing the remaining power generation amount is higher than that of the pumped storage water pump. The cooperative operation system can increase the utilization rate of wind power, reduce wind curtailment andadjust the peak and fill the valley through pumped storage at the same time; the problem of low water pressure of high-rise households in a water use peak period can be solved.

The invention discloses a spraying system for a sink dishwasher and the sink dishwasher with the spraying system. The spraying system comprises a static spraying arm which is arranged on the side wallof a sink body of the sink dishwasher; the static spraying arm is mainly formed by fixedly connecting a spraying front part and a spraying rear part, a mounting groove matched with the static spraying arm in shape is formed in the side wall of the sink body, and both the spraying front part and the spraying rear part are made of plastics; the spraying front part and the spraying rear part form asealed chamber through hot melt connection. The invention provides the spraying system which has the benefits that when an abnormal water level occurs in the sink dishwasher, while water can be timelydischarged out of an inner container of the machine, the parts can be reduced; through multi-angle spray cleaning, washing dead corners can be covered in the washing process, the washing effect is improved, and the problem of cleaning of tableware on a second shelf is solved; due to the arrangement of a pressurizing unit, the spraying pressure is increased, so that the water is turned into a formof water mist, and the washing time is shortened; due to the arrangement of a steam unit, steam is sprayed from multiple steam openings in the lower part, so that soaking and disinfecting functions are realized.

The invention discloses a split type hot water supply system for campuses. The split type hot water supply system for campuses comprises a sewage pool and a sewage pipe connected with the sewage pool. A multi-stage heat exchanger for heat exchange is arranged in the sewage pipe. The split type hot water supply system for campuses is characterized in that the system further comprises a cold water pipeline, and after the cold water pipeline passes through the multi-stage heat exchanger to be subjected to water temperature exchange, one end of the cold water pipeline is connected with the top of a heat preservation water tank, and the bottom of the heat preservation water tank is connected with the other end of the cold water pipeline; the heat preservation water tank is connected with a heat supply pump which is provided with a heating device; a plurality of water meters are connected to the rear portion of the heating device; and each water meter is connected with a card reader and a water outlet.

The invention discloses a multifunctional water basin dish washing machine. The multifunctional water basin dish washing machine comprises an ultrasonic transducer, an ozone generator and a static spray arm, wherein the ultrasonic transducer is arranged in an inner container of the dish washing machine; the ozone generator is configured on the bottom outer side of a basin body; the static spray arm is mainly formed by fixedly connecting a front spraying part and a rear spraying part; at least one static spray arm is configured on the side wall of the basin body; the ozone generator is connected with a water storage unit through a guide pipe. The invention provides the multifunctional water basin dish washing machine which comprising a washing power system for the dish washing machine whichcan realize a washing function by using space of the water basin; meanwhile, the multifunctional water basin dish washing machine also provides steam for realizing disinfection of cleaned tableware;the multifunctional water basin dish washing machine provides an ultrasonic cleaning function and a spray mixed cleaning function so as to realize cleaning of fruits, vegetables and seafood; the multifunctional water basin dish washing machine is provided with the ozone generator for introducing ozone into water, so that chemical bonds of organic pesticide lose pesticide property; the ozone generator also kills various bacteria and viruses on the surface, and further the effect of removing residual pesticide in the fruits and vegetables is achieved.

The invention provides a paddy field cordate houttuynia harvesting and cleaning all-in-one machine and a harvesting method, the paddy field cordate houttuynia harvesting and cleaning all-in-one machine comprises a rack used for supporting and bearing the whole device, a mesh platform used for cleaning is fixed at the top of the rack, and a supporting sliding plate is arranged at the bottom end of one side of the tail of the rack; a digging mechanism for digging houttuynia cordata is mounted on one side of the head of the rack in a supporting manner; the digging mechanism is connected with a transmission mechanism for driving the digging mechanism to rotate, and the transmission mechanism is connected with a power device for providing power; the digging mechanism is connected with a water outlet pipe of the water pump through the water distribution mechanism; a water outlet pipe of the water pump is connected with a water pumping device for supplying water; and the water pumping device is supported and mounted at the top of the tail side of the mesh platform. The all-in-one machine can be used for harvesting houttuynia cordata planted in soil with high viscosity in a paddy field, a traditional manual harvesting mode is replaced, and then the harvesting efficiency is improved.

The invention discloses a spray and overflow integrated structure of a sink dishwasher. The spray and overflow integrated structure comprises at least one static spraying arm arranged on the side wallof a sink body of the sink dishwasher for static directional spraying; at least one group of static spraying components is arranged on the static spraying arm; spraying angles of a first spraying hole, a second spraying hole and a third spraying hole do not interfere with one another; the distance from an overflow opening to the bottom of the sink body of the sink dishwasher is less than the distance from the static spraying components to the bottom of the sink body of the sink dishwasher. The invention provides the spray and overflow integrated structure of the sink dishwasher, which has thebenefits that as the overflow opening is reserved in a side spraying structure, while water is discharged out of an inner container of the machine in time, the parts can be reduced, so that the costis reduced; through multi-angle spray cleaning, washing dead corners can be covered in the washing process, the washing efficiency is improved, and the problem of cleaning of tableware on a second shelf is solved; as a pressurizing opening is formed, the water is turned into a form of water mist, so that scouring and soaking functions are realized; as a steam generating opening is formed, stem issprayed from multiple steam outlets in the lower part, so that soaking and disinfecting functions are realized.

The invention discloses a pipeline two-way supercharging system. Not more than 9 electric valves are arranged, six groups are used for switching combination modes, the pipeline two-way supercharging system achieves switching of three schemes of a direct supercharging scheme of a pipeline, a water pond supercharging scheme and a pipeline and water pond combined supercharging scheme. The pipeline two-way supercharging system solves the problems that a plurality of water plants are difficult to be in linkage and cannot be in mutual standby use because of the characteristics that a city water supplying water source is singular, the terrain is long and narrow, water supplying is not in balance and emergency standby use is not sufficient. A two-way supercharging emergency technology simple in technical device, fast to switch and easy and convenient to manage is provided. The pipeline two-way supercharging system can be used for emergency planning of a water supplying pipeline, and can also be used for improvement of the transfusion capacity of other pipelines under pressure, and efficient switching and effective coping are achieved.

The invention discloses a spraying system for a sink dishwasher and the sink dishwasher with the spraying system. The spraying system comprises a dynamic spraying arm and a static spraying arm, wherein the dynamic spraying arm can be rotationally arranged at the bottom of a sink body of the sink dishwasher; the static spraying arm is mainly formed by fixedly connecting a spraying front part and aspraying rear part, the spraying front part is provided with at least one group of spraying units for spraying spray water, a pressurizing unit for spraying high-pressure water mist, a steam unit forspraying high-temperature steam and an overflow opening, and the working range of each of the spraying units is larger than that of the pressurizing unit and that of the steam unit. The invention provides the spraying system which has the benefits that through multi-angle spray cleaning, washing dead corners can be covered in the washing process, the washing effect is improved, and the problem ofcleaning of tableware on a second shelf is solved; in addition, due to the arrangement of the pressurizing unit, the spraying pressure is increased, so that the water is turned into a form of water mist, and the washing time is shortened; due to the arrangement of the steam unit, steam is sprayed from multiple steam openings in the lower part, so that soaking and disinfecting functions are realized.

The invention discloses a spraying system for a sink dishwasher and the sink dishwasher with the spraying system. The spraying system comprises a dynamic spraying arm and a static spraying arm, wherein the dynamic spraying arm can be rotationally arranged at the bottom of a sink body of the sink dishwasher; the static spraying arm is arranged on the side wall of the sink body of the sink dishwasher; the static spraying arm is further provided with a pressurizing unit for spraying high-pressure water mist, a steam unit for spraying high-temperature steam, and an overflow opening; the static spraying arm comprises at least one group of spraying units for spraying spray water. The invention provides the spraying system which has the benefits that when an abnormal water level occurs in the sink dishwasher, while water can be timely discharged out of an inner container of the machine, the parts can be reduced; through multi-angle spray cleaning, washing dead corners can be covered in the washing process, the washing effect is improved, and the problem of cleaning of tableware on a second shelf is solved; in addition, due to the arrangement of the pressurizing unit, the spraying pressureis increased, so that the water is turned into a form of water mist, and the washing time is shortened; due to the arrangement of the steam unit, steam is sprayed from multiple steam openings in thelower part, so that soaking and disinfecting functions are realized.

A combination water amusement and drinking device can include a container to contain water, the container having an outlet port, a multipurpose port, and a fill port. The device can also include an amusement nozzle removably coupled to the outlet port. The device can further include a drinking nozzle removably coupleable to the multipurpose port. The device can still further include a water pump operable to pump the water from the container through the outlet port for delivery to the amusement nozzle. In addition, the device can include a gas pump operable to pressurize gas in the container to move the water from the container through the multipurpose port for delivery to the drinking nozzle when the drinking nozzle is coupled to the multipurpose port. The multipurpose port and the fill port can each be coupleable to a water source to provide water to the container.

The invention relates to the field of water supply equipment, and in particular to integrated water supply equipment. The equipment comprises a box body, wherein the surface of the box body is provided with a water inlet pipe and a water outlet pipe, a drive controller is installed inside the box body, a water storage box, a current divider box and a water outlet box are connected in the box bodyin sequence from up down through a bracket, the water inlet pipe is communicated with the water storage box, the water outlet pipe is communication with the water outlet box, the water storage box andthe current divider box are communicated through a first connecting pipeline, the current divider box and the water outlet box are communicated through a second connecting pipeline, a first liquid level sensor is provided on the inner surface of the water storage box near the lower end thereof, a second liquid level sensor is provided on the inner surface of the current divider box near the upperend thereof, and the water outlet box is equipped with a booster pump.

The invention relates to the technical field of water supply pipeline networks, particularly to a water supply pipeline network section pressure intelligent compensation system, which comprises a main water supply pipeline network and multiple independent pressure section units, wherein water supply equipment is arranged in each pressure section unit; a pressure pump is arranged between each water supply equipment and each water supply user; a pressure regulating pipeline is arranged between every two adjacent pressure section units; a section pressure intelligent compensation device is arranged on each pressure regulating pipeline; a water pressure gauge and a stop valve are mounted on the pressure regulating pipeline on each side of the section pressure intelligent compensation device. According to the invention, an MCU (microprogrammed control unit) is adopted to intelligently detect the water pressure difference between every two adjacent pressure section units and to balance the water pressure difference through a pressure reduction unit so as to achieve the purpose of balancing the water pressure difference of the whole water supply pipeline network; in addition, a pressurization water pump is adopted to perform auxiliary pressurization in each independent pressure section unit, so as to solve the problem about insufficient water pressure for water supply users caused by unbalanced water pressure in the pipeline network, and the water supply pipeline network section pressure intelligent compensation system, disclosed by the invention, has excellent popularization and application value.

The invention discloses an energy-saving waste water recycling and hot water constant-temperature supplying system. The energy-saving waste water recycling and hot water constant-temperature supplying system comprises a sewage pool and a sewage pipe connected with the sewage pool. A multi-stage heat exchanger used for heat exchange is arranged in the sewage pipe. The energy-saving waste water recycling and hot water constant-temperature supplying system is characterized in that the system further comprises a cold water pipeline; after the cold water pipeline passes through the multi-stage heat exchanger for water temperature exchange, one end of the cold water pipeline is connected with the top of a heat preservation water tank, and the bottom of the heat preservation water tank is connected with the other end of the cold water pipeline; the heat preservation water tank is connected with a heat supply pump which is provided with a heating device; a plurality of water meters are connected to the rear portion of the heat supply pump, and each water meter is connected with a card reader and a water outlet; a water pipe for connecting the heat supply pump and the water meters is provided with a general control valve, and a branch control valve is arranged in the position of each water meter; and the sewage pipe is provided with a general sewage pipe body, a sewage valve and a flushing pipe.

The invention relates to a clearing brush, in particular to a clearing brush for a plastic water pipe. The clearing brush consists of a sponge body and a water retaining valve, wherein the sponge body and the water retaining valve are stitched together by virtue of a silk yarn. The clearing brush is ingenuous and novel in concept, simple and convenient in use, low in cost and widely applicable to popularization and use.

The invention provides an implementation method of a communication device of a pelletizing water system, which comprises the following steps: S1, placing two pelletizing machines left and right, and then connecting a first channel and a second channel on each of the two pelletizing machines; s2, the first channels of the two granulator bodies are connected through a water outlet communicating pipe, and the second channels of the two granulator bodies are connected through a water inlet communicating pipe; s3, pelletizing water on the left-end pelletizer and the right-end pelletizer flows downwards from the pelletizers to enter a second channel; s4, enabling the water in the pelletizing water tank to enter a pelletizing water filter through a water outlet communicating pipe under the pressure action of a pelletizing water circulating pump, and filtering again; s5, the filtered water flows into a first channel and then enters an ultraviolet sterilizer to eliminate bacteria in the water, and then the water enters the granulator again to be recycled; the granulator is simple in structure and convenient to operate, the granulator does not need to be shut down when the water tank of the granulator is cleaned, and the problem of water pressure difference is solved.

The invention discloses a multifunctional water basin dish washing machine. The multifunctional water basin dish washing machine comprises an ultrasonic transducer, an ozone generator, a static sprayarm, a breather and a communication unit, wherein the ultrasonic transducer is arranged in an inner container of the dish washing machine; the ozone generator is configured on the bottom outer side ofa basin body; the static spray arm is mainly formed by fixedly connecting a front spraying part and a rear spraying part; at least one static spray arm is configured on the side wall of the basin body; the breather comprises a breather base connected with the outer side of the side wall of the basin body and a breather casing matched with the breather base for use; the communication unit comprises an air duct inlet arranged on the breather base and an air duct connected with the air duct inlet. The invention provides the multifunctional water basin dish washing machine comprising a washing power system for the dish washing machine; the multifunctional water basin dish washing machine also provides steam for realizing disinfection of cleaned tableware; the multifunctional water basin dishwashing machine provides an ultrasonic cleaning function and a spray mixed cleaning function so as to realize cleaning of fruits, vegetables and seafood; the multifunctional water basin dish washing machine is provided with the ozone generator which enables chemical bonds of organic pesticide to lose pesticide property, kill various bacteria and viruses on the surface, and remove residual pesticide in the fruits and vegetables.

The invention discloses a portable tunnel fire fighting equipment based on municipal water supply. The portable tunnel fire fighting equipment structurally comprises a spray gun head, an extension pipe, a water flow valve, a water supply pipe, a winding disc, a rotating shaft and a fixing frame. The tail end of the spray gun head is connected with the extension pipe through a flange, the tail end of the extension pipe is connected with the water supply pipe through a flange, and the water supply pipe is connected with the surface of the winding disc in a nested mode. The center of the winding disc is movably matched with the rotating shaft, the center of the rotating shaft is connected with the water supply pipe in a nested mode, the tail end of the water supply pipe is connected with the water flow valve in a nested mode, the water flow valve is in clearance fit with the spray gun head, and the fixing frame is matched with the top end of the water supply pipe in a nested mode. The spray gun head comprises a circulation cavity, a water outlet, a diffuser and a pipe connecting sleeve. After a rotary pressurization rotating disc rotates, a swing blade is pressed into a clamping groove while an inner rotating wheel rotates, so that a rope sliding block covers a cavity of a stop block, the stop block is blocked in a disguised mode, the water flow pressure in an overflow cavity is increased, disguised pressurization is effectively conducted under the condition that the distance is too long and the pressure is insufficient, and sufficient water flow pressure is ensured.

The invention discloses a portable tunnel fire-fighting equipment based on municipal water supply. The structure includes a spray gun head, an extension pipe, a water flow valve, a water supply pipe, a winding reel, a rotating shaft, and a fixing frame. The end of the spray gun head is flange-connected to the extension pipe. , the end of the extension pipe is connected to the flange of the water supply pipe, the water supply pipe is nested and connected to the surface of the reel, the center of the reel is movably matched with the rotating shaft, the center of the rotating shaft is nested and connected to the water supply pipe, and the end of the water supply pipe is nested with the water flow valve connection, the gap between the water flow valve and the spray gun head is matched, and the fixed frame is nested and matched with the top of the water supply pipe. The spray gun head includes a flow chamber, a water outlet, a diffuser, and a pipe sleeve. When the runner rotates, it presses its swing page into the card slot so that the rope slider covers the cavity of the blocking block, blocks it in a disguised form, increases the water flow pressure in the overflow cavity, and effectively solves the problem that the distance is too long In the case of insufficient pressure, pressurize in a disguised form to ensure that the water flow pressure is sufficient.

A domestic water supply auxiliary system includes a self-priming booster pump, pressure storage tank, a water inlet of that self-priming booster pump is connected with an outer wire three-way pipe through a water pipe, an inlet side of that out wire tee pipe is connected with a municipal tap water pipe, a low-pressure switch is connected to that water outlet of the out wire three-way pipe side, apressure storage tank is connected to the water outlet of the self-priming booster pump, and an internal wire three-way pipe is arranged on the pipeline, a pressure controller is installed on the internal wire three-way pipe, and the pressure storage tank is connected with the household water inlet through the water pipe. The invention has the advantages of adopting an easy-to-install structure and a connection mode, so that the device is more suitable for the transformation and use in the old residential area. Through the comprehensive use of self-priming booster pump, pressure storage tank and automatic control system, the problems of insufficient water pressure, water shortage and water cut-off are effectively solved, and the damage to the system due to water shortage, overpressure andother problems is avoided.

The invention belongs to the field of a water heating device, and particularly relates to a double-passage stable-pressure type water heating device. The double-passage stable-pressure type water heating device comprises two heating pipes arranged side by side, wherein a one-way water inlet pipe fixedly communicates with the side wall of each heating pipe; an electric heating rod is fixedly arranged in the each heating pipe; a piston block is glidingly connected in the each heating pipe in a sealed way; a driving pipe fixedly communicates with the lower ends of the two heating pipes; the two piston blocks and the driving pipe jointly form a sealed space; a threaded rod is rotationally connected in the driving pipe along the axial line of the driving pipe; a driving block is connected ontothe threaded rod through screw threads in a sealed way; the driving block and the side wall of the driving pipe slide in a sealed way; a position limiting mechanism used for limiting the driving blockis arranged on the side wall of the driving pipe; and a motor used for driving the threaded rod to rotate is arranged outside the driving pipe. The two heating pipes are arranged, and are used for simultaneously heating and alternately supplying water. Compared with a traditional water heater, the double-passage stable-pressure type water heating device has the advantages that that the heating time of hot water is greatly reduced on the premise of ensuring sufficient supply of hot water, and the performance of a water heater is improved.

A water amusement and hydration bicycle can include a bicycle frame and a container to contain water carried by the bicycle frame, the container having an outlet port and a multipurpose port. The bicycle can also include an amusement nozzle removably coupled to the outlet port. The bicycle can further include a drinking nozzle removably coupleable to the multipurpose port. The bicycle can still further include a water pump carried by the bicycle frame and operable to pump the water from the container through the outlet port for delivery to the amusement nozzle. In addition, the bicycle can include a gas pump operable to pressurize gas in the container to move the water from the container through the multipurpose port for delivery to the drinking nozzle when the drinking nozzle is coupled to the multipurpose port. The multipurpose port can be coupleable to a water source to provide water to the container.

The invention discloses a multi-level wastewater reclamation and hot water supply system. The system comprises a sewage pool and a sewage pipe connected with the sewage pool. The sewage pipe is internally provided with multiple levels of heat exchangers used for heat exchange. The multi-level wastewater reclamation and hot water supply system is characterized in that the system further comprises a cold water pipeline; after the cold water pipeline achieves water temperature exchange through the multiple levels of heat exchangers, one end of the cold water pipeline is connected with the top of a heat preservation water tank, and the bottom of the heat preservation water tank is connected with the other end of the cold water pipeline; and the heat preservation water tank is connected with a heat supply heat pump, and the heat supply heat pump is provided with a heating device.