44 results about "Subsurface cistern" patented technology

The present invention is a filtered seawater collection system for installation at seaside locations. This system filters undesirable elements from seawater including garbage, debris, volatile organics and biologics such as toxic algaes. The resulting filtered seawater is then pumped to a desalination plant for de-salting. This system comprises a subterranean reservoir installed at a sheltered location, such as behind a set of dunes. A borehole is created by directional drilling, the borehole breaking through the surf line and into open ocean. A pipe is laid extending from the reservoir out to the open ocean. The pipe ends in an intake, which is overlapped by gravel packets which act as filtration media. The intake receives water filtered through the gravel packets, which is transported through the pipe to the reservoir.

The invention provides a pervious material as well as a preparation method and an application thereof. The pervious material is mainly prepared from a coarse aggregate, an adhesive material, a water purification functional material, and water. As being influenced by a natural shape of the coarse aggregate, the interior of the pervious material is provided with multiple gaps with a high porosity, the gaps can allow a water body to pass through, and the water body can be filtered by virtue of the water purification functional material. The pervious material provided by the invention has high compression strength and breaking strength, has functions of storage regulating permeation and storage regulating purification at the same time, and can be used for constructing various underground spaces for purifying and storing dispersed rainwater by virtue of a simple way of building blocks. The preparation method of the pervious material provided by the invention is simple in process and low in cost, and is suitable for large-scale production. The pervious material provided by the invention has the functions of storage regulating permeation and storage regulating purification at the same time, can be used for constructing various underground water purification devices and underground reservoirs, and can also be used for constructing debris flow protection slopes.

The invention discloses a rainwater collecting and recycling system for an urban green land and a plaza; the rainwater collecting and recycling system comprises the green land, roads around the green land and the plaza; the green land is of a sunken structure which is lower than the roads and the plaza; the plaza is of a dome structure which is slightly lower at four sides; and the roads are of arched structures which are higher at the middle and slightly lower at two sides; rainwater on the roads and the plaza enters a water collecting well which is connected with a covered filtering channel; the water drain end of the covered filtering channel is connected with an underground impounding reservoir; a concrete cover plate layer is arranged at the upper part of the impounding reservoir; the green land is arranged at the upper part of the concrete cover plate layer; a water pump is arranged in the underground impounding reservoir; and the water outlet of the water pump is connected with a green land irrigation spray head. The rainwater collecting and recycling system for the urban green land and the plaza relieves the pressures on sewage disposal, municipal water supplying and shortage of urban water sources, realizes rainwater recovery and gives full play to the ideas of energy conservation, emission reduction and sustainable development.

The invention belongs to the technical field of environmental greening, and particularly relates to a green land with an underground conservation pool and a construction method of the green land. The green land comprises a planting layer and the underground conservation pool, wherein the middle of the planting layer is low, the height of two sides of the planting layer is increased gradually, a flat ditch is formed in the lowest position, and an inspection well is arranged in the lowest position of the flat ditch; or the planting layer is high in the periphery and is gradually lowered towards the middle, the inspection well is arranged in the lowest position and provided with a sewer downwards, and the sewer is connected with the underground conservation pool. The underground conservation pool is arranged under the green land and can store rainwater for later irrigation under the drought condition, besides, humidity detectors are arranged in planting grooves in the green land, and a spray pump is automatically opened for watering the green land when the humidity is lower than lower limit, so that manpower and material resources are saved.

The invention discloses an epoxy resin water-permeable material and application thereof. The epoxy resin water-permeable material contains the following components in parts by mass: 10-20 parts of epoxy resin, 10-15 parts of shale ceramisites, 30-45 parts of coarse aggregates, 10-12 parts of a bonding material, 0.3-0.5 part of a gelatinizing agent, 10-12 parts of a water-purifying functional material, 5-15 parts of an epoxy curing agent, 10-15 parts of polyether polyamine, 8-10 parts of polypropylene fibers, 2-5 parts of silicon dioxide micropowder, 30-50 parts of water, 1-2 parts of an accelerant and 1-2 parts of a diluent. A preparation method of the epoxy resin water-permeable material is simple in process, low in cost and suitable for large-scale production; and the epoxy resin water-permeable material simultaneously has a regulation and storage permeation function and a regulation and storage purification function, can be applied to various underground water purification devices and underground impounding reservoirs and can be universally applied to underground draining and water-purifying devices of sponge cities.

The invention discloses an underground water storage and purification integrated system for a sponge city, which is mainly composed of a grit chamber, a sinking green field, an underground reservoir, and an equipment room. Rainwater flows through grits into the sinking green field for permeation pretreatment, and then flows to the underground reservoir. The underground reservoir is internally provided with a soft rubber dam which divides the underground reservoir into an upper sewage unit and a lower purified water storage unit. The underground reservoir and the equipment room are connected by a pipe. Sewage in the upper part inside the underground reservoir is treated by a treatment system in the equipment room and then flows back to the purified water storage unit of the underground reservoir for storage and reuse. The system integrates functions of rainwater collection, purification, storage and reuse. Rainwater collection, diversion and storage and rainwater treatment and reuse are realized. The system helps to push forward the construction of a sponge city.

The invention discloses a solar photovoltaic water pump heating and refrigerating system and a use method of the solar photovoltaic water pump heating and refrigerating system. The system comprises a photovoltaic array, a photovoltaic charging controller, an inverter, a water pump, an underground water storage pool, a cold water storage tank and a hot water storage tank. The photovoltaic array is connected with the photovoltaic charging controller through a wire. The photovoltaic charging controller is connected with a switch box through a wire. The switch box is connected with a storage battery, the inverter and a control main board through wires. The control main board is connected with the water pump and a semiconductor refrigerating host through wires. The solar photovoltaic water pump heating and refrigerating system has the advantages that indoor constant temperature is maintained in various operation modes, solar generated power is used as the main part, municipal power is used as the auxiliary part, energy is saved, the operation mode that a semiconductor refrigerating device heating water cycle is adopted as the main part and solar collected heat is adopted as the auxiliary part is adopted, domestic hot water heating is guaranteed, semiconductor heating and refrigerating operation is free of noise, operation efficiency is high, and indoor temperature is adjusted.

A huge rainwater-collecting system is provided. It contains rainwater-collecting pipe, groundwater storage, impounded basin, anchor gate, sand sluicing canal, receiving canal, de-silting basin, sand-extracting pump and water-extracting pump. Anchor gate is set on outer wall of impounded basin. Rainwater-collecting pipes connect with impounded basin and de-silting basin. Several short walls are set on back plane of impounded basin to divide it into some sand sluicing canals. Receiving canal is set on end of sand sluicing canal. Receiving canal connects with all sand sluicing canals and expands to de-silting basin. Pumps connects de-silting basin. The second programme, sand-extracting pump is fit on bottom of de-silting basin. Water-extracting pump is fit on the part that is higher than bottom.

The invention discloses an integrated water supply device for an underground reservoir and relates to a water supply device, which solves the problems of large construction investment, long construction and installation period, potential safety hazard and large floor space of the conventional device. The invention is characterized in that: the integrated water supply device is arranged beside the underground reservoir and consists of a deep well pump, a water pump casing, a water inlet pipe, a water outlet pipe, a sealing flange, an exhaust device, an air extraction device and a water pump bottom fixing device. Compared with the conventional device, the integrated water supply device has the advantages that: the device is safe and reliable to operate, the structure is compact, the construction cost is reduced, the construction difficulty is reduced, the construction period is shortened, the device is simple to operate and maintain, the floor space can be reduced and the like.

The present invention is method for constructing a synthetic infiltration collection system for installation at seaside locations. This system filters undesirable elements from seawater including detritus, suspended solids, garbage, debris, volatile organics, toxic and harmful algal blooms and other biologics. The resulting filtered seawater is then pumped to a desalination plant for de-salting. This system comprises a subterranean reservoir installed at a sheltered location, such as behind a set of dunes. A borehole is created by slant drilling, the borehole breaking through the surf line and into the open ocean. A pipe is laid in the bore hole, the pipe extending from the reservoir out to the open ocean. The pipe ends in an intake, which is overlapped by gravel packets which act as filtration media. The intake receives water filtered through the gravel packets, which is transported through the pipe to the reservoir.

The invention provides an energy-saving environment-friendly heating system utilizing valley point electricity and an underground reservoir. The energy-saving environment-friendly heating system comprises the reservoir (2), a thermal insulation layer (3), a concrete layer (4), a sealing-up layer (5), a waterproof cable (6), an electric heater (7), a water pump (8), a heat supply terminal (9) and a bedding layer (17); the sealing-up layer (5), the concrete layer (4) and the thermal insulation layer (3) are sequentially arranged on the outer part of the reservoir (2); the electric heater (7) is arranged on the inner part of the reservoir (2); the electric heater (7) is connected to a power supply through the waterproof cable (6); one end of the water pump (8) is connected to the reservoir (2), and the other end of the water pump (8) is connected to the heat supply terminal (9); and the reservoir (2) is buried in an underground deep hole. The energy-saving environment-friendly heating system utilizes clean and pollution-free electric energy to heat cold water, so that no waste residues and waste gas are exhausted, and therefore, the energy-saving environment-friendly heating system is more environmentally-friendly; and underground thermal insulation characteristics are utilized to prevent the reservoir from radiating, and the space on the ground is not occupied, so that cost and labor are saved, and the utilization rate of the valley point electricity is increased.

The invention belongs to the technical field of environmental greening, and particularly relates to a lawn with a rainwater collecting function and a construction method thereof. The lawn comprises a planting layer and a reservoir, the middle of the planting layer is low, the two sides of the planting layer are gradually heightened, a flat ditch is arranged at the lowest place of the planting layer, and a sewer is arranged at the lowest place of the flat ditch, or the periphery of the planting layer is high, the height of the planting layer is gradually decreased from the periphery to the middle, and the sewer is arranged at the lowest place of the planting layer and connected with the reservoir arranged under the planting layer. According to the lawn, the underground reservoir is arranged, and therefore rainwater can be stored to be applied to later drought irrigation; in addition, a lawn planting groove is provided with a humidity detector, a spraying pump is automatically started to water the lawn when the humidity is lower than the lower limit, and manpower and material resources are saved.

The invention discloses an antifreezing underground water storage toilet structure, and belongs to the field of toilet. According to the antifreezing underground water storage toilet structure, an underground water reservoir is arranged outside a toilet; a water pump is arranged in the underground water reservoir; a water feeding pipe is connected with the water pump; the water pump is connected with a controller; the water feeding pipe and a water discharging pipe are arranged in the ground; discharged water flows into the underground water reservoir after passing through a biogas tank and aplurality of filtering tanks, or after filtering in a plurality of filtering tanks; a rainwater inlet and a tape water inlet pipe are arranged in the underground water reservoir. The antifreezing underground water storage toilet structure is capable of preventing bursting by freezing or bursting by icing of the water feeding pipe or the water discharging pipe in winter, optimizing water resources,reducing operation cost, and protecting the environment.

The invention discloses a novel water air conditioning system with a combiner box coupled with an intelligent control cabinet. The novel water air conditioning system comprises a solar heat-collecting water tank, the combiner box, a domestic underground reservoir and the intelligent control cabinet. A water air-conditioner heating system is formed by the solar heat-collecting water tank, the combiner box and the intelligent control cabinet. A water air-conditioner refrigerating system is formed by the combiner box, the domestic underground reservoir and the intelligent control cabinet. During refrigeration of the novel water air conditioning system, the design of the domestic underground reservoir is fully utilized, so that stored water which is unused at ordinary times and is warm in winter and cool in summer is fully utilized. Through the design of internal structure of the intelligent control cabinet, heating or refrigerating capability of the novel water air conditioning system is effectively enhanced. If necessary, the best cooling or refrigerating effect can be achieved through mutual matching of the combiner box and the intelligent control cabinet.

The invention discloses a building system based on sponge city construction. The building system based on the sponge city construction comprises a building body, a roof, an underground parking and a square, and is characterized in that the roof is provided with drainage channel used for collecting water on the roof, a plurality of floor rooms of the building body are internally provided with firstwater storage tanks and communicating pipes used for guiding the water from the drainage channel to the first water storage tanks, the underground parking is internally provided with second water storage tanks communicated with the first water storage tanks, the underground of the square is provided with an underground water storage pool, a water storage module is communicated with at least one of the first water storage tanks or second water storage tanks, and inlets and outlets of the first water storage tanks and second water storage tanks are all provided with stop valves. The building system based on the sponge city construction has the advantages that building roofs and side faces and other large-rainfall faces are fully used to perform unitary collection and reuse on the rainwater,and a storage position is divided into a plurality of layers to improve the water storage capacity and building supporting capacity; and ponding introduced by the building and flowing to the road surface is tremendously reduced.

An opencast coal mine underground water reservoir comprising an impermeable layer and, provided below the impermeable layer, a water storage space and a purification layer. The water storage space comprises a first water storage space and a second water storage space. The purification layer comprises a first purification layer and a second purification layer. The first purification layer is provided horizontally in the water storage space and divides the water storage space into the first water storage space and the second water storage space. The first water storage space is provided below the impermeable layer and between same and the first purification layer. The second water storage space is provided below the first water storage space and the bottom of the second water storage space is provided at the bottom of the opencast coal mine underground water reservoir. The second purification layer is provided vertically within the second water storage space. The present invention, by constructing the opencast coal mine underground water reservoir, prevents wastage of water resource produced during a coal mining process, and by providing the purification layer in the opencast coal mining underground water reservoir, implements repeated purification of water, prevents environmental pollution, and implements a water conservation mining policy during the coal mining process.

The invention relates to the technical field of municipal rainwater utilization, and discloses a municipal rainwater collecting system. The municipal rainwater collecting system comprises a roof rainwater collecting pipe, a ground rainwater collecting pool, an underground water storage tank, a plant irrigation pipe and a toilet pipe; a treatment tank is arranged between the underground water storage tank and the plant irrigation pipe, treatment plates are arranged inside the treatment tank, zeolite molecular sieve particles are detachably connected to the treatment plates, and a heavy metal detector is arranged at one end, near the plant irrigation pipe, of the treatment tank. The municipal rainwater collecting system has the advantages that heavy metal ions can be adsorbed from sewage since the zeolite molecular sieve particles have ion exchange and adsorption properties; when water passes through the treatment plates, heavy metals in the water can be absorbed by the zeolite molecularsieve particles on the treatment plates to ultimately reduce the possibility of the heavy metals existing in rainwater for irrigating plants.

The invention discloses a solar heating and refrigerating integrated system and a utilization method thereof. The system comprises a photovoltaic array, a photovoltaic charging controller, an inverter, a water pump, an underground reservoir, a cold water tank and a hot water tank. The photovoltaic array is connected with the photovoltaic charging controller through a wire, the photovoltaic charging controller is connected with a switch box through a wire, the switch box is connected with a storage battery, the inverter and a control mainboard through wires, and the control mainboard is connected with the water pump and a semiconductor refrigerating mainframe through wires. The solar heating and refrigerating integrated system and the utilization method thereof have the advantages that indoor normal temperature can be guaranteed by means of various operating modes; since solar power generation is assisted by the mains supply, energy is saved; by adoption of an operating mode that the semiconductor refrigerator for heating and water circulation is assisted by an air source, household hot water supply and heating can be guaranteed, noise in semiconductor heating and refrigerating operation is avoided, and high operating efficiency and adjustability of indoor temperature are realized.

The invention discloses a ground assisted enhanced greenhouse roof truss solar energy heat collecting and releasing system and a regulating and controlling method, and belongs to the field of environmental control of facility agricultural engineering. A ground pipe network system, an underground water storage reservoir and a control system are added in a greenhouse roof truss solar energy heat collecting and releasing system; the greenhouse roof truss solar energy heat collecting and releasing system is divided into three independent pipe network systems, namely, an upper chord, a lower chordand the ground pipe network, which are respectively provided with independent water pumps and can operate separately; the function of the upper chord of a roof truss is regulated to have a heat collecting function so as to avoid that heat losses easily through the roof; the heat collecting and releasing system is used for storing heat during the day and meanwhile used for releasing heat during thenight; timed and staged regulating and controlling is realized; a heat releasing position is more reasonable through a combined heat releasing mode of the ground pipe network and the lower chord of the roof truss; targeted heating of crop roots and canopy space is realized; the utilization rate of the stored heat is improved. The problem of insufficient heat storage of the system in a specific period, such as a crop seedling period, is solved pertinently.

The invention provides a terrestrial heat air conditioning system. The terrestrial heat air conditioning system comprises a first high bucket, a well-in pipe, a heat exchange pipeline, a well-out pipe and a second high bucket which are connected in sequence. An underground water storage pool, a circulating water pump and a circulating pipe are further included. The heat exchange pipeline is located in the underground water storage pool. A pipe body of the well-in pipe and a pipe body of the well-out pipe are both located below the first high bucket or the second high bucket. An indoor heat exchanger is arranged on the well-out pipe. The circulating water pump is located in the second high bucket. One end of the circulating pipe is connected with an outlet of the circulating water pump, and the other end of the circulating pipe is located in the first high bucket. When liquid in the second high bucket is pumped into the first high bucket through the circulating water pump, liquid in the first high bucket can flow into the second high bucket along the corresponding pipeline under the action of the liquid pressure difference, circulating flowing of the liquid is achieved, only energy consumption of the circulating water pump is generated in the whole circulating process, and energy is saved. Due to the fact that terrestrial heat energy is adopted, environment friendliness is achieved.

The invention discloses a condensate water recovery device. The condensate water recovery device comprises a water storage tank on which a safety valve, a water outlet pipe, a water level sensor and a pressure gauge are orderly arranged, the water storage tank is connected with a water inlet of a boiler, an air compressor is connected with the inside of the water storage tank through a stop valve and a reducing valve, a water inlet pipe is communicated with the inside of an air storage tank through a one-way valve, and the water inlet pipe is connected with a condensate water outlet end of a condenser. For the condensate water recovery device, underground pipelines and underground water reservoirs paved in a condensate water recovery process are not needed, so that the defects of leakage caused by corrosion and damage on the pipelines and direct influence on the quality of the condensate water are reduced, and simultaneously, heat loss of the condensate water is less and temperature of the condensate water is higher, which is beneficial for energy saving and environmental protection.

The invention relates to a sponge city building photovoltaic integrated utilization system. The sponge city building photovoltaic integrated utilization system comprises a roof green ecological system, an automation rainwater irrigation device, a solar PV / T system and an underground rainwater refrigeration and heating device, wherein the roof green ecological system, the automation rainwater irrigation device, the solar PV / T system and the underground rainwater refrigeration and heating device are connected with a building. The sponge city building photovoltaic integrated utilization system has the advantages that the green ecological system is built on a roof, so that the cyclic utilization of the rainwater is achieved and the rainwater utilization rate is increased; the electric energy obtained by the solar PV / T system is stored to an accumulator and is supplied for an axial flow draught fan and an centrifugal water pump to use, and thus the automation of rainwater irrigation and underground rainwater refrigeration and heating can be achieved; a heater which is arranged at the lower side of a photovoltaic panel in the solar PV / T system uses photovoltaic heat to conduct heating on the rainwater in a water feeding pipeline, so that the rainwater is used for a user and the reutilization of the rainwater is achieved; the stored rainwater in an underground impounding reservoir can be maintained at a constant temperature, the rainwater is subjected to full heat exchanging with air in a pipe through a heat exchanging pipe section, and the stored underground rainwater can be used as a cooling medium to conduct refrigeration in summer and can be used as a heating medium to conduct heating in winter.

The invention relates to an intelligent ecological blind road, and belongs to the technical field of municipalities. The blind road includes an intelligent scanning and early warning system, an intelligent lifting system and a rainwater storage system, a blind person wears a special hang tag and reaches a predetermined position, a scanner automatically scans the special hang tag and gives a voiceprompt, a road automatically descends under the control of the lifting system, the road is wrapped with a high-strength stainless steel frame, and a hydraulic jack is arranged under the steel frame and provides power for the lifting of the road; the whole system uses a solar panel to collect electrical energy and automatically stores the electrical energy in a storage battery; and rainwater goes through permeable concrete and a filtering device, enters an underground reservoir, and is discharged into a municipal pipeline from a pressure sensor intelligent water discharging opening, or is extracted by a water pump to sprinkle lawn and clean a channel. The blind road is ecologic, environmentally friendly, intelligent, convenient, safe and reliable, provides a powerful guarantee for the travel of blind people, can collect and utilize the rainwater to save water resources, and reduces the urban flood water discharge burden.

The invention discloses an energy saving vegetable plantation sunny greenhouse comprising a wall body (1), a frame (2), a greenhouse cover transparent film (2), a flexible photovoltaic film assembly (4), an insulation plate (5), a blackout cloth (6), a ventilation window (7), an electric heater (8), a basement (9), a basement cover plate (10), an overflow port (11), a water apron (12), planting soil (13), a transparent film (14), and a solar energy photovoltaic window (15). The energy saving vegetable plantation sunny greenhouse converts clean solar energy into electricity so as to heat up the vegetable plantation sunny greenhouse in winter; a corridor in the greenhouse is used for building an underground water reservoir and a garage, thus saving water, power and land.

The invention discloses a method for filling a dug well or a waste pumping well with sand for recharging underground water and storing water. According to the technical scheme, the new dug well or thewaste dry well is filled with sand to form a sand well, the mouth of the well is finished to be low, so that rainwater flows into the sand well, the rainwater permeates under the well along the gapsof the sand, the rainwater permeates into the soil when coming into contact with the soil in the well, namely, the recharge for the underground soil is realized, a water filtering column or a water filtering ball is reserved at the bottom of the well, one pipe is connected to the ground from the water filtering column or the water filtering ball, and when water is needed, a water pump is connectedfor pumping the water for use, namely, an underground water storage pool is formed.

The invention relates to a garden irrigation system based on water collection of a water pool. The garden irrigation system comprises a ground as well as an ornamental pool, an underground reservoir,a water storage tower and an irrigation mechanism which are sequentially communicated with each other; the irrigation mechanism is used for irrigating a vegetation region on the ground; the bottom ofthe ornamental pool is lower than the ground, and a pool inlet channel is arranged between the ground and the ornamental pool in a communication way; a first check valve for stopping water from flowing from the ornamental pool to the ground is arranged in the pool inlet channel; a water storage channel is arranged between the ornamental pool and the underground reservoir in a communication way andis provided with a first stop valve; a first water pump is arranged between the underground reservoir and the water storage tower in a communication way; and the water storage tower is provided witha water replenishing pipe communicated to the ornamental pool and is also provided with a second stop valve. Due to the utilization of storage and drainage systems of the water pool and a garden, thebalance of water supply for the water pool and vegetations in the garden is maintained, meanwhile, the water storage of the system is greatly increased, and the waterlogging condition is relieved or eliminated.

The invention discloses a pervious material for a sponge city. The pervious material is prepared from components in parts by mass as follows: 30-45 parts of coarse aggregates, 10-12 parts of a bindingmaterial, 0.3-0.5 parts of a gelatinizing agent, 10-12 parts of a water purifying functional material, 5-15 parts of an epoxy curing agent, 10-15 parts of polyether polyamine, 8-10 parts of polypropylene fibers, 2-5 parts of silicon dioxide micro powder, 30-50 parts of water, 1-2 parts of an accelerant and 1-2 parts of a diluent. A preparation method of the pervious material adopts a simple process, and is low in cost and suitable for large-scale production; the pervious material has regulation-storage permeation and purification functions, can be used for constructing various underground water purification devices and underground impounding reservoirs and can be commonly suitable for underground drainage of various sponge cities and water purifying plants.

The invention relates to a method for constructing structures for recycling and comprehensively utilizing rainwater. The method is characterized by comprising digging underground reservoirs on the outer sides of building foundations, adhering waterproof coiled material layers along the side walls and the bottoms of the underground reservoirs and then arranging water seepage preventive concrete layers; arranging dirt filter plates in ground reservoirs, forming bottom water pumping pits in the ground reservoirs and arranging reservoir cover plates on the upper portions of the ground reservoirs; preliminarily arranging dirt filter plate buttresses and water level sensors on the side walls of the underground reservoirs and preliminarily forming rainwater pipe connecting holes and municipal pipe connecting holes in the side walls of the underground reservoirs; reserving dirt filter plate step seams at dirt filter plate seams and arranging waterproof coiled materials at the dirt filter plate seams; arranging building water supply pipes at the bottoms of water collecting basins and inserting rear water pumping pipes in the tops of the water collecting basins; communicating rainwater collecting tanks with building rainwater pipes; arranging one-way water interception valves at joints of municipal pipeline connecting pipes and municipal pipelines. The method has the advantages that the structures are convenient to construct, the rainwater on the tops of buildings can be reused, and the rainwater on the outer sides of the buildings further can be sufficiently utilized.

The invention provides a ground source heat pump type air conditioner group public water supply system, wherein a large deep well or an underground water storage pool with a certain depth is used as a water source, and the public underground circulating water supply system is built so as to support heat exchange between a ground source heat pump type air conditioner group and the ground. According to the technical scheme, a central pump station is built and communicated with each ground source heat pump type air conditioner through double pipes which are a water supply pipe and a water return pipe, the system is totally closed relatively, the siphon principle is adopted once normal operation of water supply is conducted, and water supply can be conducted with low energy consumption. Multiple levels of water pumps are connected in series, and each level of water pumps is provided with a bypass provided with a one-way valve. After the system operates normally, only the water pumps with high flow and low lift need to work, and other water pumps are automatically switched off.