44results about How to "Meet water demand" patented technology

The invention discloses a heat pump hot water system and a control method of the heat pump hot water system. The system comprises a controller, a heat pump unit, a water storage tank and a water supply pipeline. The first water outlet end of the water storage tank is communicated with the water inlet end of the heat pump unit to form a first pipeline, and the water storage tank is communicated with the water outlet end of the heat pump unit to form a second pipeline. The water storage tank, the first pipeline, the heat pump unit and the second pipeline are sequentially connected to form a circulating heating loop, and the water supply pipeline, the first pipeline, the heat pump unit and the water storage tank are sequentially connected to form a direct heating loop. The water supply pipeline is provided with a water supply pump, a first electromagnetic two-way valve, a flow sensor and a second electromagnetic two-way valve which are sequentially connected in series, and the first pipeline is provided with a circulating water pump which is electrically connected with the controller. By the adoption of the heat pump hot water system and the control method, the integration of a circulating heating mode and a direct-heating heating mode of a heat pump water heater can be effectively achieved, and the hot water supply capacity of the heat pump water heater is improved, so that improvement of the use comfort of users is facilitated.

The invention discloses a mode switch control method of a hot water system of a heat pump. The method comprises the following steps: when the hot water system of the heat pump operates, keeping a heatpump unit in a started state; when the hot water system operates in a circulating heating mode, starting a circulating water pump of a first pipeline and keeping a valve of a water supply pipeline inan opened state, and detecting the current flow of the water supply pipeline in real time; when the current flow of the water supply pipeline is greater than the preset minimum flow, stopping the circulating water pump to switch to a direct heat type heating mode; when the hot water system operates in the direct heat type heating mode, opening the valve of the water supply pipeline and closing the circulating water pump; when a water level switch of a water storage tank is closed, starting the circulating water pump and closing the valve of the water supply pipeline or decreasing the opennessof the valve of the water supply pipeline to switch to the circulating heating mode. The method provided by the invention integrates the circulating and direct heat type heating modes of a hot watermachine of the heat pump effectively and improves the hot water supply ability of the hot water machine of the heat pump, so that the using comfort of a user is improved favorably.

The invention discloses an adsorption-based external-heating small air water taking device. The small air taking device is suitable for small constant temperature and constant humidity air conditioning cabinets in museums to provide protection for cultural relics. The small air water taking device comprises a heating belt, an adsorption bed, a water storage tank, a cooling fan, an adsorption bed outer wall, a base and the like. In the adsorption stage, an air inlet fan works, air enters an annular flow passage between the adsorption bed outer wall and an outer porous cylinder through an air inlet, enters the adsorption bed, passes through an adsorbent and is discharged from a central flow passage; in the desorption water taking stage, after air is heated by the heating belt, the heated airflows through the adsorption bed to heat the adsorbent, and accordingly, water accumulated in the adsorption stage is taken away, the air with high humidity condenses into water droplets when in contact with the cold surface, the cooling fan takes away excess heat, the water droplets flow into the water storage tank along the wall surface after condensation, and the function of water taking is achieved. The device has the advantages of small size, simple structure, compact parts and the like, damageable parts such as valves are avoided, and water can still be taken at the low dew point temperature.

The embodiment of the invention provides a water outlet control method and device, a robot and a storage medium. In some embodiments of the invention, the method includes determining a first positionwhere the self-moving robot is located at a first moment; controlling the self-moving robot to output a first water yield at the first position; determining a second position of the self-moving robotat a second moment; and determining a second water yield output by the self-moving robot at the second position according to the distance between the second position and the first position. Based on the scheme, the self-moving robot can more accurately control the water outlet amount in the operation process, and the problem of excessive water outlet is solved while the water outlet requirement ismet.

The invention discloses a fertilizer application combination applicable to planting gala apples in mountainous regions, as well as a ground management method. The ground management method comprises the following four steps: (1) confirming the fertilizer application quantity; (2) confirming fertilizer application stages and the fertilizer application quantity at each fertilizer application stage; (3) applying a fertilizer by adopting a hole sowing manner; and (4) strictly controlling the irrigation quantity. Through the steps, the solid content of gala apples can achieve 13.8-14.5% (control is at 12.5-13.2%), the content of titratable acid is in general at 0.27-0.33% (control is not less than 0.38%), the acidity is reduced while the solid content is increased, the flavor and storage of fruit can be improved, and the degradation of variety can be effectively prevented; by adopting the hole sowing fertilizer application method instead of deep-groove fertilizer application mode, the fertilizer application quantity can be greatly decreased by more than 50%, the labor for fertilizer application can be reduced, and the planting cost can be effectively lowered; in addition, by adopting farmyard manure combination, fruit trees are facilitated to take in various needed nutrients during growth; the irrigation quantity is strictly controlled, so that not only can the water demand of fruit trees be met, but also water can be saved.

The invention relates to the field of preparation of drinking water, and in particular discloses a mineralization preparation device of urban and rural drinking water. The mineralization preparation device comprises an activation tank, wherein one end of the activation tank is connected with a water inlet pipe, and the other end of the activation tank is connected with a functional tank body through a tank-to-tank connection pipe; the other end of the functional tank body is connected with a water outlet pipe; a plurality of functional tank bodies are provided, and comprise at least one functional tank body filled with sterilization and disinfection fillers, at least one functional tank body filled with adsorption and filtration fillers, and at least one functional tank body filled with mineralization fillers; magnetization columns are further arranged in the functional tank bodies; the functional tank bodies are connected in series through tank-to-tank connection pipes; a magnetization material is arranged in the activation tank. The invention also discloses a drinking water mineralization method adopting the device. The mineralization preparation device provided by the invention uses a purely physical method to achieve standards of natural active mineral water, achieves zero pollution and zero emission, and is completely harmless to the environment.

The invention provides a double-water-outlet switching valve and a faucet. The double-water-outlet switching valve comprises a housing, a valve body, a constant temperature valve, a main control circuit and a first control valve, wherein the valve body is provided with a cold water inlet, a hot water inlet, a water outlet and a warm water cavity; the hot water inlet and the cold water inlet are both communicated with an inlet of the warm water cavity; the constant temperature valve passes through the inlet of the warm water cavity to mix cold water and hot water; the first control valve is arranged between the water outlet and an outlet of the warm water cavity. The double-water-outlet switching valve is characterized by further comprising a cold water cavity and a second control valve; the inlet of the cold water cavity is communicated with the cold water inlet; the second control valve is arranged between the water outlet and the outlet of the cold water cavity; the main control circuit is electrically connected with the first control valve and the second control valve in order to switch cold water or warm water at the water outlet; the main control circuit can be set to discharge cold water or warm water in default and store the cold water or warm water. The double-water-outlet switching valve is simple in structure, high in generality, humanized in function, energy saving, and environmentally friendly.

The invention relates to an ecotype rainwater quality-divided accumulation and storage system and building method for the hilly region. The system comprises preposition ecological grass planting trenches, an initial rainwater flow abandoning device, a preliminary filtering and water collection integrated device and a plurality of accumulation and storage filtering pools which are separated from the ground surface and sequentially lowered in the direction of a slope. The operation and building method includes the steps that ground rainwater enters the initial rainwater flow abandoning device after flowing through the ecological grass planting trenches, after the rainwater flow abandoning device is full, later rainwater runoff is accumulated on the preliminary filtering and water collection integrated device, rainwater is gathered to a discharging opening after being preliminarily filtered by the preliminary filtering and water collection integrated device and then enters the multiple accumulation and storage filtering pools which are sequentially lowered in the direction of the slope, available water of all levels of water quality is obtained after multiple times of accumulation, storage and filtering, and it is convenient for users to use the water. By means of the system, the terrain can be utilized to achieve power-free preliminary flow abandoning, preliminary and deep filtering, accumulation and storage and utilization.

The invention discloses a tap with the water outlet direction being adjustable. The tap comprises a fixed frame, a first joint, a second joint, a water outlet faucet and a sealing ring. A flow channelis formed in the fixed frame; an inner thread of an upper opening is in threaded connection with an outer thread of the first joint; a step is arranged at the first joint and internally provided witha flow channel; an outer thread is arranged on a small step at the left end of the step, and an extending column is arranged at the right end of the step; a connecting ball is arranged at the right end of the extending column and attached to an inner ball face arranged in the second joint; a first step is arranged on the second joint and internally provided with a through hole; a first outer thread is arranged at a small step at the right end of the first step and is in threaded connection with an inner thread of the water outlet faucet; the surface of the through hole is provided with a damping part, the left end of the through hole is provided with an inner ball face, and the through hole is internally provided with the sealing ring; and the left end face of the sealing ring is attachedto the sealing face of the connecting ball, the right end of the sealing ring is attached to the inner side face of the water outlet faucet, and a control switch is arranged on the water outlet faucet. The modeling is concise, a water spraying outlet can be adjusted in the direction of any angle, the water outlet requirements of the different angles are met, and water using and cleaning of publiclandscapes and restrooms are more convenient.

The invention discloses an internally-heated small air water taking device and method based on adsorption. The small air water taking device comprises an adsorption working condition and a desorptionworking condition. Under the adsorption working condition, an air inlet fan works, the air enters a center runner in an inner porous cylinder through an air inlet and radially enters an adsorption bed, moisture absorption of the air is implemented by adsorbent, and the air passes an annular runner and a steady-flow hydrostatic cavity and then discharged. Under the desorption working condition, theair enters the center runner from the air inlet, is heated by a heating bar arranged in the center runner and flows the adsorption bed to heat the adsorbent to take away and adsorbs aggregated moisture, high-humidity air condenses water drops through circular fins, excess heat is taken away by a cooling fan, condensed water drops flow into a water storage tank along a wall surface, and water is taken by the air. The same runner is shared under the adsorption working condition and the desorption working condition, and the air centrifugally and radially flows. The device has the advantages thatthe device is small in size and simple in structure, water can still be taken at low-dew-point temperature, energy is saved and the like.

The invention discloses a rice film mulching and mechanical transplanting integrated cultivation method. The method comprises the following steps of 1, soil preparation and fertilization; 2, seedlingraising management; 3, film mulching selection; 4, rice transplanting and film mulching; and 5, field management. The method is mainly aimed at the requirements of a green efficient comprehensive planting technology, biodegradable film mulching and mechanical transplanting integrated planting is adopted for naturally removing weeds, the utilization rate of fertilizer and water resources is increased, the labor cost is saved, and efficient production is promoted; biodegradation film mulching is adopted, no pollution is caused, film uncovering is not needed, the weeds are controlled, fertilizerand pesticide are reduced, and the environment is protected; machine transplanting and film mulching are integrated, cost and labor are saved, manual punching is not needed, and the production cost isreduced; and a furrowing machine is adopted for furrowing and water storage to control middle weeds, the problem that the weeds are generated due to the fact that during film mulching and mechanicaltransplanting, furrow surfaces exist and no film covers the furrow surfaces is solved, furrow water storage is adopted, on one hand, water is used for pressing grass, and on the other hand, water in the furrows can meet the water requirement of rice in film mulching fields.

The invention discloses an automatic irrigating and vertical greening device based on a porous suction filtration material. The device comprises a supporting frame fixed onto a wall surface, a waterproof fabric is laid on the supporting frame, a detachable cultivation shell is mounted between the waterproof fabric and the supporting frame, n circular holes for cultivating plants are formed in thefront of the cultivation shell, a detachable top cover is arranged on the cultivation shell, a horizontal partition plate and a vertical partition plate are arranged in the cultivation shell, the horizontal partition plate is provided with a water seepage sheet and a water absorption wire, a water seepage sheet is mounted on the vertical partition plate, gaps are formed between the water seepage sheet and the water absorption wire, a water tank is arranged in the rear of the vertical partition plate, a water inlet, a water outlet and a communication port are formed in the side wall of the water tank, a ball float valve is mounted at the water inlet, the communication port is communicated with the rest water tank, and water flows into the water tank through the water inlet and then is absorbed and filtered through the water seepage sheet and the water absorption wire. According to the device, moisture can be automatically adjusted according to requirements of various landscape plants, automatic irrigating and drainage function is achieved, and the device has the advantages of low energy consumption and convenience in mounting and maintaining.

The invention relates to a pressure-regulating variable-flow water economizer which comprises a groove sleeve, a piston and a spring. The groove sleeve is a cylindrical shell. The piston is mounted in the groove sleeve. The groove sleeve comprises a sleeve and a support frame. One end of the sleeve is a through hole. The other end of the sleeve is provided with the support frame with a water outlet. The side wall of the sleeve is provided with a plurality of slots. The piston comprises a piston piece and a piston rod. The piston piece is slidably matched with a sleeve inner wall combining face. The piston rod is slidably matched with a support frame inner hole combining face. The piston and the groove sleeve can slide relative to each other. The spring is sleeved on the piston rod between the piston piece and the support frame. Two ends of the spring are respectively in contact connection with an end faces of each of the piston piece and the support frame. By the groove sleeve with the slots and the piston and spring mounted in the groove sleeve, the defects such as flow loss and pressure loss caused by front-rear end pressure difference of the existing water economizers can be overcome, and pressure and flow can be adjusted automatically. The water economizer is applicable to fields such as building water supply.

The invention discloses a system capable of automatically watering flowers. The system comprises a display screen, a humidity sensor, a processor, a water sprayer, a water pump and a water tank; the displaying screen is electrically connected with the processor; the humidity sensor is buried in the soil and is electrically connected with the processor; the water sprayer is connected with the waterpump; the water pump is electrically connected with the processor; the water pump is fixedly connected to one side of the water tank and is placed in the water tank. the system can automatically detect water content in the soil and make a result be displayed on the display screen in real time, people can conveniently view the result, the system can control the water pump to supply water or stop supplying water according to the detected water content, the water pump opening flow meets required water demands of irrigation of household flowers and plants, the water pump material is safe and sanitary, cannot deteriorate, and is long in service life, the water pump is difficult to rust, and the system is high in automation degree, reliable in working, high in practicability, and applicable tohousehold use.

The invention relates to the technical field of household appliances, and provides a water taking control method and device, the method is applied to purified drinking equipment, and the method comprises the following steps: obtaining a serial number of an electronic tag on a water cup; obtaining a verification value based on the serial number; and outputting a water outlet control instruction for controlling the water outlet of the purified drinking equipment on the basis of the verification value under the condition of determining that the verification is passed. According to the method, the correctness of the electronic tag on the water cup is verified through the purified drinking equipment, water is directly discharged after verification succeeds, the water discharging efficiency of the purified drinking equipment is improved, the identity information of the user of the water cup can be determined through the serial number, water discharging data can be recorded according to the identity information, and the intelligence of the purified drinking equipment is improved.

The invention relates to the technical field of electric appliances, and provides a control method and device of a water dispenser and the water dispenser. And in response to the target input, determining that the current water level of a water production tank of the water dispenser is not lower than a target water level and the current water temperature of the water production tank exceeds a target temperature range, and controlling the working state of a temperature control assembly of the water dispenser. According to the method, after the target input of the user is received, the current water level and the current water temperature are judged to control the temperature control assembly to heat or refrigerate the water in the water making tank, the dry burning or freezing phenomenon can be effectively avoided, the water in the water making tank cannot be repeatedly heated, accurate temperature control is achieved, and the user experience is improved. And the water outlet temperature of the water dispenser meets the taking requirement of a user.

The invention relates to a water pumper, in particular to a wind vacuum water pumper. The wind vacuum water pumper comprises a vacuum water well and is characterized in that the vacuum water well is connected with a lower disc, the upper end of the lower disc is connected with a trolley sleeve, and the upper end of the trolley sleeve is connected with an upper disc. The upper disc and the lower disc are sleeved on a spindle respectively, a spring is arranged at the lower end of the trolley sleeve, and the bottom end of the spring is fixed on a clamp sleeve of the spindle. An eccentric wheel is connected above the upper disc and connected with a wind wheel turntable through a wind wheel shaft, a wind wheel transversely penetrates an upper foundation pillar, the lower end of the upper foundation pillar is connected with a bearing sleeve, the bottom end of the bearing sleeve is welded on a flange plate, and the flange plate is welded on the upper end of the spindle. The wind vacuum water pumper has the advantages that operation can be performed day and night, the large water demand is met, manpower consumption is reduced, and meanwhile wind power serves as a green energy resource so that environmental pollution is not caused; the wind power is not exhausted and can be used as input power for a long period of time; and the water pumper is compact and simple in design and simple in operation.

The invention discloses an ocean platform water taking method and device, and relates to the technical field of ocean platforms. The ocean platform water taking method includes the steps that S1, a pile leg is lowered, and a submersible pump and a pump tower pipe are submerged into the sea level along with the pile leg; S2, a lifting assembly is operated to lift the pump tower pipe step by step, so that the submersible pump connected with the pump tower pipe reaches a preset height; S3, a supporting assembly is driven to move so that the supporting assembly can abut against the pump tower pipe; S4, a seawater system is communicated with the pump tower pipe; and S5, the submersible pump is started. According to the ocean platform water taking method and device, the structure and operation are simplified, the water taking requirements of different positions can be met, and the structural stability is good.

The invention relates to the technical field of food processing devices, in particular to superheated steam steaming and baking equipment and a processing control method thereof. The equipment comprises a superheated steam generation device, a steam control valve, a conveying chain, a steam oven body, a hot air generation device, a hot steam release pipe, a temperature detector, a humidity detector and a controller. The hot steam generating generation is communicated with the hot steam release pipe through a pipeline, the conveying chain penetrates through the steaming and baking box body, the steaming and baking box body is internally provided with the hot steam release pipe, the temperature detector and the humidity detector, and the side wall is communicated with the hot air generation device. The controller comprises a control module capable of setting steaming and baking time, temperature and humidity; and food materials are conveyed into the steaming and baking box body through the conveying chain, the temperature detector and the humidity detector continuously monitor the temperature and the humidity in the steaming and baking box body, feedback adjustment is conducted at the same time, and steaming and baking quality unification is achieved. The equipment provided by the invention is simple and convenient to use, can realize continuous automatic control, and has the advantages of low cost, high efficiency, strong adaptability and the like.

The invention discloses an electrode biological membrane device for in-situ nitrogen and phosphorus removal of a farmland ditch, and a use method thereof, and belongs to the technical field of non-point source pollution control and water pollution treatment. The device comprises a grid, a rotary bioelectrode rotation disc and an electrode area, wherein the electrode biological membrane device is installed in a farmland ditch, and the water flow in the ditch enters from a device inlet, sequentially passes through the grid, the rotary bioelectrode rotation disc and the electrode area, and is discharged from a device outlet. According to the invention, the device is stable, simple and convenient, and can be assembled and disassembled according to field conditions; microorganisms are fixed onthe surface of the electrode, and domestication is carried out in the ditch tail water by applying a certain voltage, so that the stable operation conditions are achieved, and the in-situ synchronousdegradation of main pollutants such as organic matters, sediments, TN, TP, ammonia nitrogen, nitrate nitrogen, phosphate and the like in the farmland ditch tail water under the dual effects of an electrochemical method and a biological method is realized.

The invention discloses an electric water heater. The electric water heater comprises an inner container, a water inlet pipe, a water outlet pipe, a top heating pipe arranged at the top of the inner container, and a bottom heating pipe arranged at the bottom of the inner container, wherein the water inlet pipe and the water outlet pipe are fixedly connected to the inner container, the water inletof the water inlet pipe is located at the bottom of the inner container, the water outlet of the water outlet pipe is located on the upper portion of the inner container, the bottom heating pipe is arranged on the periphery of the water inlet pipe, the top heating pipe is arranged around the water outlet of the water outlet pipe; the electric water heater further comprises an intermediate layer heating pipe arranged in the middle of the inner container, the middle layer heating pipe is arranged above the water inlet of the water inlet pipe; and the pipe surface loading of the top heating pipeis 6W / cm<2>-12W / cm<2>. According to the electric water heater, the top heating pipe with pipe surface loading of 6W / cm<2>-12W / cm<2> is used, because the pipe surface loading of the top heating pipe isrelatively low, the top heating pipe could totally engage in stored water heating of electric water heater, therefore the electric water heater can quickly preheat water in the inner container, and stored water preheating time is greatly shortened. The invention further discloses a control method of the electric water heater.

The invention discloses an independent drip irrigation device on the basis of water demands of plants in desert or gobi regions. The independent drip irrigation device comprises a water storage bucketand water outlet pipes. The water outlet pipes are arranged on the lower portion of the water storage bucket, drip irrigation can be carried out on a single corresponding plant by each water outlet pipe, and the flow velocity of each water outlet pipe is 0.13L / h; the water storage capacity of the water storage bucket is higher than or equal to a product of the annual water demand of each plant inthe growing period, 1 m<2> and the number of plants required to be subjected to drip irrigation. The independent drip irrigation device has the advantages that the independent drip irrigation devicecan be independently operated for a year without labor, the water demands of the plants in integral growing seasons can be met, and manual water volume inspection and repeated irrigation can be omitted in the periods; the cost for laying water delivery pipelines from water source regions can be saved, and accordingly the independent drip irrigation device is extremely high in practicality for thedesert or gobi regions with vast territories and severe water shortage.

The invention relates to a device for intercepting rainwater in rainy seasons in a coastal region garden. The device comprises a water storage tank, a filtering fence and a walking top cover, whereina waterproof liner is embedded in the water storage tank; a guide funnel and a water pump are also mounted in the water storage tank; the edge of a funnel opening of the guide funnel is mounted at a notch of the water storage tank; four walls of the guide funnel are inclined; a filtering mechanism is also arranged in a funnel neck at the lower part of the guide funnel; the walking top cover is mounted at the upper part of the water storage tank through a supporting column; the walking top cover comprises a wooden cover plate and an openable well lid; the wooden cover plate consists of wooden grating plates; the openable well lid is arranged on the wooden cover plate; and the filtering fence is also arranged between the walking top cover and the water storage tank. The invention also discloses a method for intercepting the rainwater in the rainy seasons in the coastal region garden. According to the device and the method, the rainwater can be recycled while the rainwater is intercepted,so that water resources are greatly saved.

Embodiments of the present application provide a water outlet control method, device, robot, and storage medium. In some embodiments of the present application, determine the first position of the self-mobile robot at the first moment; control the self-mobile robot to output the first water output at the first position; determine the self-mobile robot A second position at a second moment; determining a second water yield output by the self-mobile robot at the second position according to the distance between the second position and the first position. Based on the above scheme, the self-mobile robot can more accurately control the water output during the operation process, meet the water demand and solve the problem of excessive water output.

The invention relates to a water pumper, in particular to a wind vacuum water pumper. The wind vacuum water pumper comprises a vacuum water well and is characterized in that the vacuum water well is connected with a lower disc, the upper end of the lower disc is connected with a trolley sleeve, and the upper end of the trolley sleeve is connected with an upper disc. The upper disc and the lower disc are sleeved on a spindle respectively, a spring is arranged at the lower end of the trolley sleeve, and the bottom end of the spring is fixed on a clamp sleeve of the spindle. An eccentric wheel is connected above the upper disc and connected with a wind wheel turntable through a wind wheel shaft, a wind wheel transversely penetrates an upper foundation pillar, the lower end of the upper foundation pillar is connected with a bearing sleeve, the bottom end of the bearing sleeve is welded on a flange plate, and the flange plate is welded on the upper end of the spindle. The wind vacuum water pumper has the advantages that operation can be performed day and night, the large water demand is met, manpower consumption is reduced, and meanwhile wind power serves as a green energy resource so that environmental pollution is not caused; the wind power is not exhausted and can be used as input power for a long period of time; and the water pumper is compact and simple in design and simple in operation.

The invention provides a floating water taking device capable of adjusting the water taking depth, and belongs to the field of reservoir irrigation or drinking water supply. The floating water takingdevice comprises a screw machine, a floating box, a water taking head and water taking pipes; the floating box is arranged on the water surface in a floating mode, the screw machine is fixed to the floating box, the screw machine is provided with a screw extending to the lower side of the floating box in the vertical direction, and the water taking head is fixed to the screw on the lower side of the floating box; and the water taking head is hinged to the upper end of the first water taking pipe through a universal hinge, the lower end of the first water taking pipe is hinged to one end of thesecond water taking pipe through a universal hinge, the water taking head communicates with the second water taking pipe through the first water taking pipe, and the other end of the second water taking pipe is a water diversion outlet. The problems that at present, if layered water taking is adopted in the same reservoir, mechanisms such as a gate, a water taking tower and a hoist need to be arranged, the construction cost is high, only one water taking device is arranged, and consequently the requirements for different water taking purposes cannot be met at the same time are solved.

The invention provides a special water and fertilizer retention fertilizer for tomatoes and a preparation method of the special water and fertilizer retention fertilizer, and belongs to the technical field of fertilizers. Modified bentonite and a water-absorbing polymeric monomer are subjected to prepolymerization to obtain a prepolymer, then under the action of a cross-linking agent and an initiator, the prepolymer and an inorganic fertilizer are subjected to a copolymerization reaction to obtain a gelatinous material, and the gelatinous material is dried and then crushed into particles to obtain the special water and fertilizer retention fertilizer for tomatoes. Bentonite is modified, metal ions such as Al < 3 + >, Mg < 2 + > and Ca < 2 + > in a bentonite solid layer are dissolved out in a soluble salt mode, pore channels of the bentonite are promoted to be dredged, circulation of an adsorbate molecular structure is facilitated, after the modified bentonite and a water-absorbing polymeric monomer are subjected to a polymerization reaction, a polymer contains a porous structure, and the adsorption capacity of the adsorbent is improved. The water absorptivity of the fertilizer and the adsorption performance on inorganic nutrients are greatly improved, and the water and fertilizer retention performance on tomato plants is effectively improved.

The invention discloses an automatic irrigation vertical greening device based on a porous suction filter material, which includes a support frame fixed on the wall, a waterproof cloth is laid on the support frame, and a detachable cultivation shell is installed between the waterproof cloth and the support frame. There are n circular holes on the front of the shell for planting plants; the cultivation shell is provided with a detachable top cover, and a horizontal partition and a vertical partition are arranged inside, the horizontal partition is provided with a water seepage sheet and a water-absorbing wire, and the vertical partition is equipped with a water seepage sheet. Pores are distributed in the seepage sheet and the water-absorbing wire; a water tank is installed behind the vertical partition, and the side wall of the water tank is provided with a water inlet, a water outlet and a connecting port. After entering the water tank, it is absorbed and filtered by the water seepage sheet and the water absorbent wire. The invention can automatically regulate water according to the needs of various landscape plants, realize automatic irrigation and drainage functions, and has the characteristics of low energy consumption and convenient installation and maintenance.

The invention discloses a pipe-communicating three-sleeve water storage secondary heating heat exchanger. A plurality of cold water pipes are connected and communicate in a sealed manner. At least oneheating pipe is arranged in pipe cavities of the plurality of cold water pipes, and the plurality of heating pipes are connected and communicate with one another ni a sealed manner. A cold water heatabsorption pipe is arranged in a pipe cavity of at least one heating pipe. The cold water heat absorption pipe inserted into the pipe cavity of the heating pipe is fixedly connected and communicate with the inner cavity of the corresponding cold water pipe in a sealed manner to form a three-sleeve cold medium secondary continuous heating fast channel. A shell pipe end socket blocking plate is fixedly connected with and blocks the port part of each cold water pipe in a sealed manner. A cold water inlet pipe connector, a cold water outlet pipe connector, a warm air inlet pipe connector and a warm air outlet pipe connector are fixedly connected to each cold water pipe or each shell pipe end socket blocking plate in a sealed manner. The heat exchanger is compact and simple in process structure, the flowing path of a pipe-communicating three-sleeve secondary heating changing cold medium channel is lengthened, the flowing speed of a cold medium is limited, the heating residence time of coldfluid is prolonged in the cavities of the cold water pipes, exchange hot water of the heat exchanger continuously flows out, and the bathing requirements of users are met.