403 results about "Frozen Water" patented technology

A combination ice scraper and snow removal assembly which has multiple blades in contact with the working/windshield surface to more efficiently remove ice and snow therefrom and reduce the amount of energy expended by the user to scrape and remove snow from the working surface. This combination ice scraper and snow removal assembly includes a main body portion having two ends thereof. A scraping assembly is provided at one end of the main body for scraping a frozen water material from a working surface. The scraping assembly includes at least three scraping blades with at least one of the scraping blades having a continuous blade edge and at least two of the scraping blades having toothed cutting edges. As a result, in a single swiping or scraping action of the user, ice or snow can be dislodged from the working windshield/surface by the scraping blade assembly and then cleared and/or removed from that dislodged location by the cleaning blade removal assembly in a limited path of travel.

A method and apparatus for preparing a single serving of a frozen slurry beverage in a disposable drink container or cup by preparing a supply of fine frozen particles of water in the form of ice flakes and/or ice nuggets of compressed ice flakes, depositing a predetermined quantity or amount of the fine frozen particles of partially frozen water into a disposable single serving drinking cup or container, dispensing or adding a predetermined quantity or amount of flavored liquid beverage mix into the disposable single serving drinking cup or container and blending the fine frozen particles of partially frozen water and the flavored liquid beverage mix into a substantially uniform frozen slurry beverage of a predetermined consistency.

This invention discloses a compressed central air-conditioning adaptive variable flow energy saving control device composed of an adaptive variable flow controller, ice water control subsystem, frozen water control subsystem, cooling water control subsystem, cooling tower blower fan control subsystem, the adaptive variable flow controller connects with control subsystem of ice water device, frozen water pump, cooling water and blower fan of cooling tower capable of making every operational target to reach the most optimized.

The invention relates to a system for monitoring energy efficiency ratio of operation of a water cooler set and a monitoring method thereof. The system comprises a controller for monitoring the energy efficiency ratio of operation of the water cooler set, a local monitoring computer, a remote monitoring computer and a frozen water supply temperature sensor of a cold supply pipe network, a frozen water return temperature sensor of the cold supply pipe network, a frozen water flowmeter of the cold supply network and a power sensor of a refrigeration compressor which are correspondingly connected with the water cooler set; the frozen water supply temperature sensor of the cold supply pipe network, the frozen water return temperature sensor of the cold supply pipe network, the frozen water flowmeter of the cold supply network and the power sensor of the refrigeration compressor are connected with the controller for monitoring the energy efficiency ratio of operation of the water cooler set respectively; and the local monitoring computer and the remote monitoring computer are connected with a signal of the controller for monitoring the energy efficiency ratio of operation of the water cooler set through a convertor I and a convertor II respectively. The system is suitable for the water cooler set of a central air conditioning system using electric power as primary drive energy; and the measured energy efficiency ratio of operation of the water cooler set is suitable for supervising daily energy-saving operation of the water cooler set.

The invention discloses an ice-storage cold-heat pump coupled multi-stage total-heat recovery fresh air processor, belonging to the energy source utilization technology and the air adjusting field. The processor consists of an air exhaust part, a fresh air processing part, a total-heat recoverer and a heat pump system. The heat pump system comprises a compressor, a condenser, a condensation heat recoverer, an evaporator and an expansion valve. The indoor low-temperature low-humidity exhaust air is used for exhausting the condensation heat quantity of a refrigerating system in summer; and the indoor high-temperature high-humidity exhaust air is used for exhausting the evaporation cold quantity of the refrigerating system in winter. The total-heat recoverer performs multi-stage total-heat recovery of fresh air and exhaust air so as to improve the heat recovery efficiency. The heat pump system provides necessary cold quantity and heat quantity to a fresh air processing system. The ice-storage cold provides the low-temperature frozen water to completely dehumidify the fresh air so as to achieve lower moisture content.

The invention discloses a cascaded ice-storage air conditioning system and a method utilizing same to supply cold air for an air conditioner. The cascaded ice-storage air conditioning system comprises a centrifugal cooling water system, a dual-mode unit system and an ice cold-storage system, wherein the centrifugal cooling water system comprises a centrifugal cooling water circuit and a centrifugal refrigerant circuit; the dual-mode unit system comprises a dual-mode cooling water circuit and a dual-mode refrigerant circuit; the ice cold-storage system comprises a refrigerant circuit; a first evaporator and a second plate-type heat exchanger form an independently connected circular cooling water circuit along with a frozen water pump, a water segregator, end equipment and a water collector respectively; the centrifugal cooling water system is connected with the dual-mode unit system by a first plate-type heat exchanger; the first plate-type heat exchanger is connected with the cooling water pump and the first evaporator so as to form an ice-making frozen water circuit; the first plate-type heat exchanger and a second cooling water pump and a second condenser form the ice-making frozen water circuit, and the end equipment is connected with the air conditioner that needs to be supplied with cold air. The cascaded ice cold-storage air conditioning system has high efficiency, can supply cold air reliably, can prepare and store ices effectively at low valley, and can save energy and charges.

The invention discloses a refrigeration system for mine cooling. A compressor (1) is connected with a condenser (2) and mounted on a mine; the compressor (1) and the condenser (2) are connected with an evaporator (4) mounted underground through a restricting element (3), so that a refrigeration cycling system is formed; the refrigeration cycling system is filled with a refrigerating agent; the condenser (2) is connected with a closed heat exchanger (5) through a cooling water circulating pump (6) and by pipelines, so that a cooling water circulation system is formed; the cooling water circulation system is filled with cooling water; and the evaporator (4) is connected with an air cooler through a frozen water circulating pump (7), so that a frozen water circulation system is formed, and the frozen water circulation system is filled with frozen water.

A freeze-drying method by a far infrared heater including the steps of: mounting the frozen objects to be dried prior to heating in the containers in which an absorption power of the radiant heat from the far infrared heater and a thermal conductivity are high, respectively; mounting the said objects which are contained in the containers into the reduced pressure tank under an atmospheric pressure; heating the containers by the radiant heat from the far infrared heater disposed in the reduced pressure tank; and sublimating the frozen water contents of the objects in a reduced pressure state where sublimation of the objects occurs in the reduced pressure tank.

The invention relates to an underground construction technology, and specifically relates to an open-excavated tunnel water stopping structure for protecting a groundwater environment and a construction method thereof. The open-excavated tunnel water stopping structure comprises vertical frozen earth water stopping layers arranged at two sides of an open-excavated foundation pit of a tunnel, and a horizontal frozen earth water stopping layer arranged at the bottom part of the open-excavated foundation pit of the tunnel, wherein the vertical frozen earth water stopping layers intersect with the horizontal frozen earth water stopping layer; the bottom parts of the vertical frozen earth water stopping layers are lower than the bottom part of the horizontal frozen earth water stopping layer. According to the open-excavated tunnel water stopping structure, the vertical frozen earth water stopping layers and the horizontal frozen water stopping layer form a U-trough shaped frozen earth water stopping layer to protect the groundwater environment, and thus the groundwater can be prevented from being polluted during the tunnel construction process; a frozen earth water stopping structure is adopted, so that wide-range draining construction can be avoided, and precious groundwater resources can be saved; meanwhile, surrounding buildings and structures can be prevented from being subjected to sedimentation and deformation caused by the draining construction.

The invention discloses an energy recovery double-cold-source high-enthalpy-difference energy storage fresh air handling unit. The unit comprises an air conditioning system, a heat pump system and an energy storage system; the air conditioning system includes a fresh air machine, an exhaust fan and an air total-heat recoverer; the heat pump system includes an annular close-connected compressor, a condensation heat recoverer, a condenser, an expansion valve, a direct expansion evaporator and an energy storage evaporator; the energy storage system includes an energy storage tank and a high-entralpy-difference surface cooler connected with each other; and the condensation heat recoverer, the direct expansion evaporator and the high-entralpy-difference surface cooler are respectively arranged on a fresh air channel. The unit largely reduces the operation cost by using the peak-valley price, provides low-temperature frozen water needed by deep dehumidification, increases the energy-efficiency ratio of the heat pump system through recovering the condensation heat, can improve the quality of indoor air through low-temperature cold sources and increment of the fresh air quantity, reduces the fresh air conditioning energy consumption by exhausting and heat recovery, and facilitates to save the energy and reduce the environmental pollution.

The invention provides an air-cooling heat pump unit, which comprises a compressor, a plate heat exchanger, a pressure sensor (6) and a controller. The plate heat exchanger used as an evaporator is communicated with a first refrigerant pipeline (13) led out from an air suction port of the compressor. The pressure sensor is used for sensing refrigerant evaporation pressure of the plate heat exchanger and connected onto the first refrigerant pipeline. The controller is provided with a module which is used for outputting signals enabling the air-cooling heat pump unit to stop when sensing values of the pressure sensor are smaller than the set pressure value. The invention further provides an anti-freezing method for the plate heat exchanger, which is used for the air-cooling heat pump unit and includes anti-freezing steps: using the pressure sensor to detect the refrigerant evaporation pressure of the plate heat exchanger; and comparing the refrigerant evaporation pressure with the set pressure value, and when the refrigerant evaporation pressure is smaller than the set pressure value, stopping the air-cooling heat pump unit, otherwise, keeping the air-cooling heat pump unit in operation. By means of the air-cooling heat pump unit and the anti-freezing method for the plate heat exchanger, frost cracking of the plate heat exchanger caused by frozen water, for heat exchange with refrigerant, in the plate heat exchanger can be effectively prevented.

The invention relates to a PLC energy saving control method of a frozen water pump and a cooling water pump in a central air-conditioning system, which is realized through the following steps: (1) respectively installing a ratio adjusting valve on a frozen water system and a cooling water system; (2) starting the cooling water pump, starting the frozen water pump after the cooling water pump delays Tb, and then starting a freezer after the frozen water pump delays Ta, and causing the temperature difference of inlet and outlet water to approach to a set value through continuous adjustment of PLC; (3) keeping a freezing unit stopped if Th is less than Tk-delta; starting the freezing unit if Th is not less than Tk+delta t; and running the freezing unit by repeating the steps (1) and (2). The PLC energy saving control method has the advantage that the energy saving of the running of frozen water and cooling water systems is realized.

A process for freezing and crystallizing triformol continuously by double-pipe crystallizing device is carried out by entering fresh triformol from pre-system into circulating pump I, mixing suspensoid with circulating loop with after-crystallizing device and connecting pipeline, delivering partial triformol suspensoid in after-crystallizing device to centrifuge, by conveying pump, separating triformol crystal from mother liquid, returning partial mother liquid to after-crystallizing device, returning partial mother liquid to pre-system, transferring partial triformol suspensoid in after-crystallizing device to double-pipe crystallizing-device by circulating pump II, heat exchanging with frozen water to form triformol crystal nucleus, and returning triformol suspensoid to after-crystallizing device. It has less methanal content and consumption of electricity and frozen water and better heat-exchange ability.

The invention discloses a method for planting transplanting type alfalfa. The method for planting the transplanting type alfalfa comprises the following steps that alfalfa varieties which are strong in disease resistance and early in dormancy are selected, seeds are selected through the winnowing and screening modes, and the seeds are spread and placed under the blazing sun for 3-4 days; a land which is leeward, exposed to the sun, high in terrain, dry in soil, good in water draining and close to a water source is selected to serve as a seedbed land; the sowing time is selected between March and April, a nutrition pot is used for growing seedlings, the seeding rate is 20 grams per square meter, and seeds are covered by soil by 2 centimeters; water is supplemented and covering is carried out timely according to the soil water regime of a seedbed; transplanting is carried out when the rainy season comes in mid-to-late June, the transplanting method of digging dibble water sitting sowing or digging pits is adopted, or transplanting is carried out before rainy days or after rainy days; weeds around rice seedlings are removed at the time of soil freezing and melting in the late autumn and early winter, in the late autumn and early winter, the land is irrigated once with frozen water and is irrigated with green resuming water when the alfalfa begins to return to green every spring; the alfalfa is not harvested in the year when the alfalfa is transplanted to enable the alfalfa to live through the winter safely, and the alfalfa can be harvested in autumn next year. The method is simple and convenient to operate, and the yield of the alfalfa is improved.

The invention discloses a water retention method of open coal mining frozen water-bearing stratum, which is applicable to the technical field of coal mining and environmental protection. The method includes steps of exploring distribution content of underground water-bearing stratum of a zone through hydrogeology drilling; practicing a freezing circle interception on the underground water-bearing stratum in a well field scale by an artificial cooling method, and preventing the underground water out of the well field mining scale from discharging to an open mine pit. The water retention method cannot disturb normal production activity, and can effectively prevent underground water body at periphery of the well field from discharging towards the open mine pit, maintain the underground water level at the peripheral zone, and effectively protect the ecological environment at surrounding of the mine zone; particularly, the method is applicable to the water retention and mining in the severely cold opencast working zone in the west part; the local climate condition can be fully utilized to reasonably reduce the energy consumption from practicing the embodiment; the method is economic and environment-friendly, and has very high reliability and practicability.

The invention discloses a household radiation cooling, heating and air refreshing efficient integrated processing device and an operation method. The device comprises a cold/hot water distribution box, a steam compressed circulating loop, a solution dehumidification/regeneration circulating loop, a frozen water circulating loop and a fresh air dehumidification/humidification module. The device isprovided with two operating states of a refrigerating mode and a heating mode; in the refrigerating mode, high-temperature frozen water is supplied to a radiation terminal for radiation cooling; and meanwhile, dehumidification solution is used for efficiently dehumidifying fresh air after cooling of the high-temperature frozen water to bear all wet loads of the radiation terminal. Part of condensation heat of an air source heat pump unit is used for regenerating the solution. In the heating mode, the same set of devices is used for generating hot water for radiation heating; and the humidifiedfresh air is supplied indoors to relieve the frosting risk of an outdoor evaporator. The device can synchronously realize that an integrated air conditioning unit operated efficiently under the working conditions in summer and winter drives a radiation cooling/heating air conditioning system, so that the economy of the air conditioning system is improved.

The invention discloses a high-strength high-toughness freeze-resistant heat-resistant polyacrylamide organic hydrogel and a preparation method thereof. The polyacrylamide organic hydrogel is preparedby immersing a polyacrylamide hydrogel into polypropylene glycol. The polypropylene glycol acts with water molecules through hydrogen bonding to make free water transformed into non-frozen water or freezable water, at a low temperature, a small amount of free water and the freezable water form tiny ice crystals to be embedded into a polyacrylamide network, the tiny ice crystals make the strengthof the gel increased, and through shear yielding, tensile deformation capacity is given to the gel. Physical entanglement is generated between the polypropylene glycol and polyacrylamide macromolecules to achieve the enhancing effect, and the organic hydrogel shows excellent mechanical properties at the temperature of 25 DEG C and at the high temperature of 60 DEG C. Therefore, the high-strength high-toughness freeze-resistant polyacrylamide organic hydrogel can show the excellent mechanical properties at the temperature of 25 DEG C and at the high temperature of 60 DEG C, moreover, at the temperature much lower than 0 DEG C, the polyacrylamide organic hydrogel still has high deformation and fracture toughness, and the polyacrylamide organic hydrogel has a wide application prospect withina wide temperature range.

The invention relates to a technique capable of improving the operating efficiency of an air compressor, and aims at providing a device and a method for improving the operating efficiency of the air compressor by utilizing air pressure waste heat. The device comprises the air compressor, wherein the air compressor is provided with three stages of compressors, an air cooler introduces air, and three stages of coolers output compressed air; the air cooler and an absorption type refrigeration unit are connected by pipelines to form a frozen water circulation loop; the absorption type refrigeration unit is connected with a heat exchanger through a pipeline, the heat exchanger is respectively connected with the three coolers by pipelines, and the three coolers are respectively connected with the absorption type refrigeration unit by pipelines to form a hot water circulation loop; the heat exchanger is connected with a water cooling tower by a pipeline to form a cold water circulation loop. Compared with the prior art, the device and the method for improving the operating efficiency of the air compressor by utilizing the air pressure waste heat, which are disclosed by the invention, have the advantages that the waste heat of the air compressor is effectively recycled and is used back in the air compression system, and the air in an inlet of the air compressor is cooled down and dehumidified, so that the quality and the efficiency of air generation of the air compressor are effectively improved; meanwhile, the operation cost and the maintenance cost of an air compressor set are reduced, and the purpose of saving energy and reducing consumption is realized.

A shot glass system has means for holding frozen water, i.e. ice against the alcohol-retaining walls comprising circumferential detents and lips placed within a chamber which is formed adjacent the walls.

The invention discloses an essential service water system for a nuclear power station. The essential service water system comprises more than one safety series which comprises an SEC pump and an RRI/SEC heat exchanger, each safety series is provided with a mixing forebay in the upstream of the SEC pump, and a separation gate for separating the mixing forebay into a water intake area and a drainage area is arranged in the mixing forebay; a water return pipeline which is connected into the drainage area of the mixing forebay is arranged in the exit of the heat exchanger. According to the essential service water system for the nuclear power station, by additionally arranging the mixing forebay on the front end of a pump house, and by adopting the method that hot water backflows into the mixing forebay instead of using an overflow well, the overall water temperature of the SEC pump entrance is enabled to be increased, and the operation method of the system in winter is the same with that in summer when the seawater temperature is higher; only the adjustment on a total capacity of the mixing forebay and a subarea proportion of the water intake area and the drainage area are required to be carried out, and the problem of not meeting the requirement on a low temperature of nuclear island users caused by an overlow cooling water temperature possibly brought by the nuclear power station in a frozen water area in the north in winter can be solved in any places and conditions.

The invention discloses a NMP recovery and purification system. The whole system is in closed cycle, and comprises a cooling water cooler, a frozen water cooler, a recovery unit, a refraction unit anda final purification unit; the cooling water cooler, the frozen water cooler and the recovery unit tightly communicate in sequence; the cooling water cooler is provided with a cooling water inlet, acooling water outlet and a NMP liquid outlet A; the frozen water cooler is provided with a frozen water inlet, a frozen water outlet and a NMP liquid outlet B; and the recovery unit is provided with aNMP waste gas inlet, a NMP air return port and a discharge port. The invention further discloses a recovery and purification system using the NMP recovery and purification system. Compared with the prior art, the NMP recovery and purification system has the beneficial effects of online recovery, reduction of use of NMP storage tanks, constant recovery and relief of the enterprise burden.