144 results about "Extreme climate" patented technology

The invention discloses an integrated environment test device, which comprises an industrial personal computer, an aging test box, a water storage tank and a spraying water pump, wherein an xenon lamp and a shower nozzle are arranged inside the aging test box, the shower nozzle is connected with a water outlet of the spraying water pump, a water inlet of the spraying water pump is connected with the water storage tank, and a power input end of the xenon lamp and the power input end of the spraying water pump are respectively accessed to the industrial personal computer. Multiple test factors are integrated inside one aging test box to actually simulate the working situation of an electric power device under an all-day severe environment and an extreme climate environmental condition, and evidence can be provided for the design and manufacturing of different electric power devices and composite material insulation products in the power transmission and transformation industry through the test data, so that the safe running of an electric network can be guaranteed.

A method and system are provided for medium-range probabilistic prediction of extreme temperature events. Extreme temperatures are measured according to how local temperature thresholds are exceeded on daily timescales to generate a local “Magnitude Index” (MI). A regional MI reflecting the historic temperature intensity, duration and spatial extent of extreme temperature events over all locations within the region is then computed. The regional MI is used to create a synoptic catalog for each of one or more pre-defined weather variables by testing the significance of leading modes in historic atmospheric variability across specified periods of time. Current or recent weather conditions are compared against the synoptic catalog to generate probabilistic predictions of extreme temperature events based the presence of synoptic precursors identified in historic patterns.

The invention discloses a device and method for testing wind pressure on the surface of a building structure. The device is provided with a thin wall cavity box body formed by a thin wall shell, a chassis and a load-bearing panel through sealing, a micro force sensor is arranged in the thin wall cavity box body, the upper part of the micro force sensor is connected with a balance disk through a connecting member and the lower part of the micro force sensor is fixed with the chassis, and the side surface of the cavity box body is provided with a pipeline communicated with a reference pressure system. During the measurement, the chassis is fixed on the surface of the building structure, incoming flow wind speed pressure acts on the upper surface of the load-bearing panel, a guide hole pipeline is communicated with an external reference pressure to form a reference internal pressure to act on the lower surface of the load-bearing panel, the pressure difference of the load-bearing panel is converted into concentrated force through the balance disk, the concentrated force is transferred to a pull pressure sensor through a connecting member, and the force measured by the pull pressure sensor corresponds to the internal and external pressure difference. The invention has the advantages of high testing accuracy, frequency response characteristic and better stability, and can be widely applied to a prototyping computer pilot of the wind pressure on the surface of the building structure under an extreme climate condition.

A device useful for delivering a temperature altering regimen to a specific and defined location on an animal's body, and thus altering the temperature of an animal's body, or defined area thereof. It is desirable to alter the temperature of an animal's body for a variety of reasons, including: maintaining a desirable basal body temperature in an extreme climate; maintaining basal body temperature to treat an illness affecting said temperature; providing a temperature greater or lesser than basal temperature to muscle groups and / or joints to help with swelling and aching following a strenuous workout; providing a temperature greater or lesser than basal temperature to joints to assist with pain associated with swelling due to arthritis; and to lower the temperature of a body following a strenuous workout.

The invention discloses an intelligent scheduling decision-making method for flood and drought control based on extreme climate conditions. The intelligent scheduling decision-making method is used inriverside areas and comprises the steps of: step 1) acquiring and collecting various kinds of original data; step 2) preliminarily establishing a virtual reservoir model; step 3) optimizing the virtual reservoir model; step 4) and utilizing a final data model obtained in the step 3) to output various kinds of data to sub-functional modules, thereby achieving the intelligent scheduling decision-making purpose for flood and drought control in the riverside areas under extreme climate conditions. The intelligent scheduling decision-making method can ensure scientificity, precision and reliability of the data, achieves the effects expert early-warning support and decision scheme analysis, can timely respond to the sudden rainstorm process, and immediately starts up a pumping station drainage,not only reduces the water accumulating volume, but also greatly reduce the full-load working process of the pumping station, saves energy and reduces emission, effectively improves the early-warningand handling capacity of flood and drought control in the riverside areas, promotes the improvement of integral level of water resource scheduling management, and has extremely high practicability.

The invention discloses high-strength hot-rolled H-shaped steel with yield strength being 650 MPa or above. The hot-rolled H-shaped steel comprises the chemical components of, by weight, 0.08%-0.20% of C, no more than 0.5% of Si, 1.2%-1.6% of Mn, 0.06%-0.15% of V, 0.015%-0.05% of Ti, 0.2%-0.5% of Ni, no more than 0.02% of P, no more than 0.01% of S, no more than 0.015% of N, 0.20%-0.5% of Mo, 0.20%-0.35% of Cu, 0.20%-0.50% of Cr, 0.02%-0.05% of Al, no more than 0.004% of O and the balance Fe and inevitable impurities. The invention further discloses a preparation method of the hot-rolled H-shaped steel. According to an H-shaped steel product for maritime work, mechanical performance is good, the yield strength is larger than 650 MPa, tensile strength is larger than 750 MPa, the -20 DEG C longitudinal impact power is larger than 34 J, and thus the H-shaped steel product is suitable for being used in regions with the extreme weather conditions.

The invention discloses a temperature regulating system for an asphalt road. The temperature regulating system comprises a heat dissipation or heat absorption device which is arranged in an asphalt road structure layer, wherein one end of the heat dissipation or heat absorption device is connected with an inlet pipeline of a heat transfer medium; the other end of the inlet pipeline of the heat transfer medium is connected with an input heat medium pump; the other end of the heat dissipation or heat absorption device is connected with an outlet pipeline of the heat transfer medium; the other end of the inlet pipeline of the heat transfer medium is connected with an output heat medium pump; and hot water or cool water is pumped into the inner cavity of the inlet pipeline of the heat transfer medium through the medium pump. The system takes away heat of the asphalt road generated at high temperature or transfers heat to the asphalt road at low temperature, makes the asphalt road in outside extreme climate conditions work at the best use ambient temperature, prevents the asphalt under the extreme climate conditions from becoming soft at high temperature or becoming fragile at low temperature, ensures the asphalt road is under the best useable condition, greatly prolongs the service life of the road, and can be widely applied to asphalt roads.

A protective composition which low heat and cool transfer. This composition can cut to the desired staple length of proper thickness. Protective composition can use for spacecraft to provide from the air heat and decrease air wear when spacecraft is re-entry, and which is very important as we know now. The composition is use for industry, civil, military and recreational purposes, for instance, blanket including for spacecraft, outer wear for extreme climates (clothing including firefighters protection, apparel, vest, sleeve and glove, mitten, thermal underwear), sleeping and another bags, different container, firefighters protection material which is protect from harmful, environmentally toxic chemicals, ets. This composition can use as firefighters material. The product of protectine composition is technically and cost effective.

A method and system for the maintenance and operation of air-cooled heat exchangers in climactic extremes of hot and cold ambient air temperatures which includes the permanent installation of a plurality of spray tubes provided with spaced-apart nozzles positioned between the finned heat exchange tubes and longitudinally aligned within the region of the finned-tube pitch. In one mode of operation, the forced air fan is stopped and temperature-controlled pressurized water with an optional cleaning agent is discharged from the nozzles to dislodge dirt and debris from the finned surfaces while simultaneously cooling the hot process liquid. When high ambient air temperatures preclude the forced air fans from achieving the required cooling of the process liquid passing through the ACHE, refrigerated pressurized cooled water and compressed air in the form of a mist is discharged from the nozzles. When low ambient air temperatures would reduce the temperature of the process liquid to an unacceptable level, pressurized heated air is discharged from the nozzles. Temperature sensors and associated automated programmed control systems can advantageously be employed to adjust the volume and temperature of the respective fluids discharged through the spray nozzles, or the system can be manually controlled by an operator based upon the temperature and pressure of the process fluid discharged from the ACHE.

The invention discloses a method for stimulating the action of soil under extreme climate, and an apparatus thereof. The method and the apparatus are suitable for the indoor manual controlled stimulation research of the change of physical and mechanical properties of soil under the action of drought, rainfall (acid rain) and drought and rainfall coupled extreme climate processes, and can stimulate the influences of the extreme climate on the properties of soil. The stimulation ground temperature is in a range of 0-75DEG C, the air humidity is in a range of 0-95%RH, and the rainfall intensity is 0-250mm / h and can be adjusted at will as needed to generate many types of rainfall (heavy rain and acid rain). Different work modules are started to research the mechanical response of soil under the environment action influences of drought, rainfall and drought and rainfall coupled climates; and the apparatus has the advantages of mutually independent systems, simple structure, convenient installation and dismounting, high flexibility and strong applicability.

A floating platform for drilling after or production of hydrocarbons comprises a semi-submersible main platform (2) carrying process and / or drilling equipment at its upper surface (7), and which is designed as a vertical, essentially flatbottomed cylinder. The main platform (2) is provided with a central vertical shaft (8) which at its lower end is adapted for reception and releasable locking of an anchoring buoy (3) carrying fastening equipment for anchoring lines (10) and for risers (14, 15) and umbilicals.

The invention discloses a plateau earthquake climatic environment simulating device and belongs to the technical field of testing equipment. The plateau earthquake climatic environment simulating device comprises a plateau earthquake simulating cabin equipped with two cabin layers and an earthquake simulating structure disposed in the plateau earthquake simulating cabin. The top cabin layer of the plateau earthquake simulating cabin is a plateau earthquake chamber and the bottom cabin layer of the plateau earthquake simulating cabin is an earthquake falling chamber. An air supply system, a spraying system, a temperature control system, a sunlight generator, an ice-making system, a mist-making system, and a noise system are disposed in the plateau earthquake simulating cabin. By means of the plateau earthquake simulating cabin and the earthquake simulating structure, the plateau earthquake climatic environment simulating device may simultaneously simulate a plateau, an earthquake, and various extreme climate environments formed by combining the plateau with the earthquake, enables a proofer to experience various plateau and earthquake extreme climates at one time, and solves a problem that a product in the prior art may just simulate a single climate so as to be high in experience cost and manufacture cost.

The invention discloses a fertilizer composition comprising nucleotide and 5-aminolevulinic acid, and the weight ratio of nucleotide to 5-aminolevulinic acid is 1:(0.75-1.25). The invention also discloses another composition comprising 5-10 parts of a chelating agent, 5-35 parts of a trace element, 10-20 parts of a medium element and 20-30 parts of a biostimulant besides including nucleotide and 5-aminolevulinic acid, wherein the total amount of nucleotide and 5-aminolevulinic acid is 5-12 parts. Through the synergistic effect of the composition, the chlorophyll content and the photosyntheticrate of crops are improved, the utilization rate of the crops to fertilizers is increased, both the yield and quality of the crops are improved, the yield increasing effect is stable, the compositionis not easily affected by external conditions, and even the yield increasing effect is better under extreme climate conditions.

The invention belongs to the technical field of captive balloon operation and security design, and relates to a captive balloon anchoring platform and a using method. The captive balloon anchoring platform comprises a ball seat, a spare part chamber in the ball seat, an empennage storage chamber, a take-off recovery chamber, a maintenance chamber and a plurality of take-off recovery devices. The ball seat is in a trapezoid shape, a conformal curved surface matched with the lower surface of the balloon is arranged in the middle of the upper surface of the ball seat; cross arm sliding rails, cross arms installed on the cross arm sliding rails and a plurality of upper captive rigging bodies are arranged on two sides of the upper surface of the ball seat. The ball seat is provided with a doorfor entering the maintenance chamber; a plurality of bottom captive rigging bodies are arranged at the bottom in the take-off recovery chamber; during anchoring, helium in the sphere can be released,the sphere becomes flat and is placed in the conformal curved surface, and a covering plate is tightly fixed through the cross arm sliding rails so as to resist extreme climate such as strong storm; by means of the captive balloon anchoring platform, an application area can be continuously expanded to areas with complex geographical and topographic conditions such as ocean islands, steep mountainous regions and wetland mudflats.

The invention discloses a 1,200kV extra-high voltage suspension type composite rod insulator, which consists of two insulators, wherein the two insulators are connected in series through connecting fittings, and the highest voltage of each insulator is 1,200kV; each insulator comprises a mandrel, and a sheath and umbrella skirts which are arranged on the mandrel in a sleeving manner; voltage sharing rings are arranged at the two ends of the mandrels; a voltage sharing ring on the wire side is a double-layer voltage sharing ring. According to the 1,200kV extra-high voltage suspension type composite rod insulator, the double-layer voltage sharing ring is arranged on the wire side, and a special umbrella skirt design method is adopted, so that the 1,200kV extra-high voltage suspension type composite rod insulator has the advantages of light weight, strong strength, high hydrophobicity and hydrophobic mobility of a silicon rubber surface, high flashover voltage and the like, and the running requirements of an extra-high voltage power transmission line under extreme climate conditions of high humidity, high temperature and the like can be met.

The invention discloses a polyamide five-layer co-extrusion composite film and a preparation method thereof. Cyclosiloxane is taken as a monomer, tetramethyl ammonium hydroxide alkaline gel is taken as a catalyst, and ring opening polymerization is conducted between the cyclosiloxane and the tetramethyl ammonium hydroxide alkaline gel and an epoxy blocking agent to obtain an epoxy blocking organic silicon polymer; the epoxy blocking organic silicon polymer is reacted with the polyamide in a molten state to obtain organic silicon modified polyamide; the organic silicon modified polyamide, nano particles and antioxygen are added into an extruder for coextrusion to obtain the polyamide five-layer co-extrusion composite film with high performance. The modified polyamide five-layer co-extrusion composite film has the advantages of the polyamide and the organic silicon materials. The polyamide five-layer co-extrusion composite film and the preparation method thereof have the advantages of good insulativity, system voltage resistance, high dimensional stability, heat stability, good mechanical property, abrasive resistance, self-lubricating property, small hygroscopicity, thermal shock resistance, extreme climate resistance and the like. The polyamide five-layer co-extrusion composite film and the preparation method thereof can be used in the field of solar backborad film, insulators and the like.

The invention provides a new desertification control method. The new desertification control method comprises the steps that concave-convex bar clay, organic fertilizer and soil drought resisting water-retaining agents are mixed to form a base body in a certain mass ratio; plant seeds are added, water is added during stirring, paste is formed and sprayed to the surface of desert, and the desertification control and prevention effect is obtained after the paste is solidified. According to the new desertification control method, the concave-convex bar clay and the agriculture and forestry water-retaining agents are used for making the paste which adapts to extreme climate conditions in desert areas, a covering layer which is not prone to being cracked is formed on the surface of a sand dune, rainwater can be sufficiently absorbed and stored, and water evaporated and permeated from air and the desert are absorbed at night, so that sufficient water is provided for the plant seeds, and the seed growth rate is improved. The new desertification control method not only plays a role in desertification control and fixation, but also greatly improves the ecological environment, produces great social benefits and economical benefits, and has significant popularization and utilization value and wide prospects.

The invention relates to an integrated super-discharge energy-dissipation flood-overflowing unit. The unit comprises an inlet overflow weir, wherein a chute is formed in the downstream of the inlet overflow weir; a water-falling energy dissipater is formed in the chute; the inlet overflow weir is a compound key overflow weir; the compound key overflow weir comprises a weir body; a forward triangular pier and a reverse triangular pier with horizontal bottom surfaces are staggered at the top of the weir body; the length in the water flow direction of the bottom surfaces of the positive triangular pier and the reverse triangular pier exceeds the thickness of the top end of the weir to form a weir front cantilever and a weir rear cantilever; a partition is arranged between the positive triangular pier and the reverse triangular pier. Compared with the conventional overflow weir, the compound key overflow weir has the advantages that the flow coefficient is remarkably increased; water heads acting on the weir are obviously reduced, so that a condition of heightening the dam for dealing with the exceeding flood caused by dam break and extreme climate. The integrated super-discharge energy-dissipation flood-overflowing unit is simple in structure and low in upgrading, improving and maintaining costs; by virtue of the open type arrangement, the sand is easily discharged; the unit is especially suitable for upgrading and improvement of the built wide-top weirs or practical weir flood spillway.

The invention discloses an alcohol-type adhesive double-effect assistant and a preparation method thereof. The alcohol-type adhesive double-effect assistant comprises the following raw materials: vinyltrimethoxysilane, 1,2-bis(trimethoxysilyl)ethane, 3-(2,3-epoxypropoxy)propyltrimethoxysilane and water. The single-component alcohol-type RTV (room-temperature vulcanizing) adhesive produced from the alcohol-type adhesive double-effect assistant can be used for firmly binding FR-4, glass, plastic, metal, ceramic and various other materials, and can implement quick deep curing under low-temperature dry conditions and other extreme climates. The alcohol-type adhesive double-effect assistant disclosed by the invention is safe, simple and environment-friendly to manufacture, and can overcome the defects of poor binding performance and slow deep curing (vulcanizing) in the national alcohol-type RTV adhesive.

The invention aims to provide a solar photovoltaic photo-thermal integration system in a severe cold area. The building surface adopts photovoltaic power generation while effectively collects and uses heat generated by a photovoltaic plate, so as to provide passive heat supply and ventilation to the inner part of a room. The system solves the problem of low power generation efficiency caused by temperature rise and greatly converts and uses solar energy at the same time to provide guarantee for heating in winter at the severe cold area; the solar photovoltaic photo-thermal integration system generates power while preserve warm, and is able to greatly store the heat generated by conversion in winter to the inner part of an enclosure structure, and improve the using efficiency; with assistance of double-source hot pump, the solar photovoltaic photo-thermal integration system guarantees the shortcoming of a passive solar photo-thermal system, avoids possible problems under extreme climate, and guarantees high-efficient display of the passive solar application system in different weathers.

The invention provides a construction method of hundred-year homogenized air temperature daily value sequence observed by ground meteorological station, which comprises the following steps of: establishing basic data of the hundred-year homogenized air temperature daily value sequence, splicing the data to form a complete hundred-year sequence, performing quality control on the complete hundred-year sequence, performing homogenization test on the hundred-year sequence, and establishing a monthly value reference sequence in the homogenization test; acquiring a breakpoint through inspection; further, under the daily value reference sequence, based on correction of a reference sequence method, obtaining a homogenized air temperature daily value sequence observed for one hundred years; obtaining an optimal interpolation sequence through data interpolation for the homogenized air temperature daily value sequence observed in hundreds of years; and evaluating the optimal interpolation sequence to obtain a final homogenized temperature daily value sequence. The construction method provided by the invention overcomes the difficulty of quantitative analysis of extreme climate change by substitute data; a combinability homogenization analysis method is developed, the authenticity of breakpoint detection is improved, the reliability of correction data is enhanced, and a new data basis is established for the field of extreme climate change research.

The invention discloses polyurethane resin-based metal heat treatment protective paint which comprises a component A and a component B. The component A comprises the following ingredients in parts by weight: 60-120 parts of a small-molecular alcohol compound, 1-20 parts of a catalyst and 60-120 parts of a chain extender. The component B comprises the following ingredients in parts by weight: 100 parts of polyether polyol, isocyanate and 30-60 parts of an inrumescent flame retardant. The mole ratio of a hydroxide radical in polyether polyol to an isocyanate group in isocyanate is 1:(1.8-2.5). The component A and the component B are uniformly mixed according to the mass ratio being (10-30):100. The storage requirements of billets can be met under different process conditions by using high adhesion between a polyurethane resin matrix and the surface of a metal material. The polyurethane resin can also be cured at 0 DEG C, can meet the requirement of spraying the billets in a extreme climate, is high in toughness, and can effectively avoid paint falling due to collision and friction during the billet piling process. In the relatively low temperature period, the polyurethane resin forms the continuous paint, and protects the metal surface; and in the high temperature period, the inrumescent flame retardant is decomposed to form a dense carbon layer to protect the metal surface.

The invention discloses a team exploration auxiliary communication and management method based on a wireless sensor network. A plurality of unpredictable losses of individuals, teams and even the whole society can be occurred caused by the fact that various extreme climates and bad natural environments are inevitable in team exploration. The method is a feasible scheme for exploring and solving communication and management in the team exploration. Based on the WSN (Wireless Sensor Network) technology, the method applies a ZigBee network to realize transmission of voice short messages in the team, and provides high-efficiency and energy-conservation positioning service through analyzing relative position information among general member nodes, enhanced member nodes and team leader nodes and assisting by GPS (Global Positioning System) positioning information which is provided by anchor nodes after the nodes and the information are synthetically processed. Under various extreme environments of existing systems incapable of working effectively, the method can reduce risk, avoids possible accidents, and improves the success rate of processing abnormal accidents.

The invention provides a high-toughness, high-strength and low-wet-expansion fiber cement external wall panel which comprises the following components in parts by weight: 29-41 parts of cement, 18-35 parts of quartz sand, 5-13 parts of quartz powder, 3-6 parts of silica fume, 14-21 parts of fly ash, 14 parts of limestone powder, 1-4 parts of aluminum hydroxide, 2-4 parts of mica powder, 1-5 parts of wollastonite and 6-9 parts of paper pulp. In addition, the invention also provides a preparation method of the high-toughness, high-strength and low-wet-expansion fiber cement external wall panel. The high-toughness, high-strength and low-wet-expansion fiber cement external wall panel is environmentally friendly, low in cost, high in density, high in toughness and strength, extremely low in wet expansion rate, excellent in performance in weather resistance experiments such as freezing and thawing cycle and soaking and drying, and capable of fully meeting the use requirements of external wall panels in extreme climate areas.

The invention discloses chlorinated rubber used for windshield wipers. The chlorinated rubber used for the windshield wipers is prepared from the following components in parts by weight: 60 parts of chloroprene rubber and 40 parts of natural rubber. According to the chlorinated rubber disclosed by the invention, the endurance of the existing windshield wipers to extreme climate can be enhanced and the physical property cannot be greatly decreased; the endurance of the windshield wipers when working in a place with big environment temperature difference is enhanced, and the chemical resistance and the ozone resistance of the windshield wipers are improved.

The invention discloses a visual test device for carrying out anchor plate drawing, which comprises an anchor plate, a test box body, a heavy rainfall-drought extreme climate simulation system, a loading system and a measuring system, and is characterized in that the test box body is of a box body structure of which the front side surface can be turned over and opened and the top is provided with a drawable cover plate; the heavy rainfall-drought extreme climate simulation system comprises an artificial rainfall device and an infrared baking lamp; the loading system comprises a loading frame, an electric actuator, a pulley block and a steel wire rope connected to the pulley block; and the measuring system comprises a load displacement sensor, a data acquisition instrument, a multi-layer soil parameter detector, a high-pixel digital camera and a computer. The problem that the weakening effect of the uplift bearing capacity of the anchor plate cannot be accurately analyzed due to the fact that a previous test device does not simulate the heavy rainfall-drought extreme climate is solved, and a multi-directional pull-out test of the anchor plate under a special condition is achieved.

The isolating switchgear is composed of cabinet, cable room, instrument room, breaker, and operating mechanism. The operating mechanism is located on external surface of cabinet. Cabinet seat is on the cable room. Clapboard divides cavity inside cabinet into relative sealed busbar room, and breaker room. Busbar connector, insulator, busbar connection row, connecting block, and socket are setup in busbar room. Breaker is fixed to inner wall of cabinet. Being installed on clapboard, busbar connector is composed of insulating sleeve and current conducting rod (CCR). The current conducting rod passes through the insulating sleeve. Gas insulation dielectric is contained inside the busbar room and the breaker room. Being installed in busbar room, isolation knife is composed of movable knife, static knife, and connecting plate. Through rivet, the connecting plate is hinge jointed to CCR. Features are: good insulatibity, small electric gap, and normal operation under extreme climate.

The invention discloses a wind tunnel system in a low-temperature and low-pressure wind-sand environment, wherein the system comprises a backflow type direct blowing wind tunnel unit, a power unit, a low-temperature unit, a low-pressure unit and an environmental parameter monitoring and wind-sand movement testing unit; the backflow type direct blowing wind tunnel unit comprises a power section, a diffusion section, a rectification section, a contraction section, an experiment section, and a sand accumulation section which are arranged successively; the power unit comprises a fan arranged on the power section and is at least used for regulating and controlling the wind speed of the wind tunnel unit; the low-temperature unit is matched with the wind tunnel unit and is at least used for regulating and controlling the air temperature in the wind tunnel unit; the low-pressure unit is communicated with the wind tunnel unit and is at least used for regulating and controlling the air pressure in the wind tunnel unit; and the environmental parameter monitoring and wind-sand movement testing unit is at least used for detecting air temperature, air pressure, wind speed and the like in the wind tunnel unit. The system can be used for simulating soil wind erosion, wind sand movement and wind sand landform development processes in various extreme climate change scenes, special environments such as Qinghai-Tibet Plateau, Antarctic Pole and Arctic Pole and planetary environments such as Mars.

The invention discloses a multifunctional cold and heat combined supply heat pump system which comprises a draught fan, a water distributing device, a material filling area, a shutter, a strut, a water heating tank, a heat-end heat exchanger, a check valve, a first condenser, a first compressor, a first evaporator, a second condenser, a second compressor, a second evaporator, a cold-end heat exchanger, a cold supply area, a heat exchange tower, a tap water storing tank, a three-way valve, a concentrated salt water storing tank, a first expanding valve, a second expanding valve, a valve, a water pump and a pipeline connecting system. Two heat pumps adopt a serial and parallel connection adjustable pipeline system and a circulation working medium adjustable heat exchange tower system, thereby solving the problem of frosting of the evaporators in winter and the problem of great reduction of the running efficiency of the heat pumps in extreme climate and leading a cold and heat combined supply heat pump to efficiently run in various climates; and the system can be used for large public systems, such as hotels, factories, stores, and the like and greatly widens the application range of the heat pump system.