36results about How to "Prevent frost damage" patented technology

The invention discloses a water flow regulating valve and particularly discloses a dynamic return water temperature flow regulating valve in a heating, ventilating and air conditioning water system. The dynamic return water temperature flow regulating valve is used for controlling the water flow of a heat-transferring coil and comprises the water flow regulating valve, a driver, a return water temperature sensor, an indoor temperature sensor, an indoor switch and a controller. The return water temperature sensor and the indoor temperature sensor are added, and an indoor temperature set value and a control return difference are preset inside the controller, so that the defect that water flow regulating valves in existing heating, ventilating and air conditioning water systems can not determine reasonable return water temperature set values to regulate the water flow according to indoor temperatures and indoor temperature set values is overcome, the water flow is reduced to the maximum extent, the water pump energy consumption is saved and the main machine refrigeration efficiency is improved when the conditions of indoor cold, hot and humid loads are met, and meanwhile, the cold or heat energy waste caused by the improper installation and usage of the indoor temperature controller can be avoided.

This invention relates to a solar energy water heater, especially to an anti-freezing device of a solar energy water heater used in icing regions in winter and cold regions including a central control circuit, a temperature sensor, a water level sensor, a photosensitive sensor, a switch, a water pump, an electric controlled valve and a display circuit, in which, the temperature sensor, the water level sensor, the photosensitive sensor and the switch are connected to the central control circuit via cables, the central control circuit is connected to the water pump, the electric controlled valve and the control panel.

The invention relates to an energy conservation controlling system for the time-sharing and large temperature difference heat supplying, which belongs to the field of the building heat supplying system controlling technology. The energy conservation controlling system comprises a system combined by a hardware configuration and a software module. An electrical switch valve is arranged at the inlet part of the heat consumer, namely the single building or the hot area with the identical function, the temperature outside the monitoring room is Tw, the temperatures of the supply and return water are respective Tg and Th, and an intelligent controller IC is arranged at the nearest part. The intellectualized function is realized mainly through the analyzing and computation of the software. The energy conservation controlling system has the advantages that the energy conservation effect is obvious, the heat supplying security is good, the adjustability is strong, and the energy conservation controlling system is suitable for the new-building system and the reconstruction of the old system.

The invention discloses a high-efficiency and environment-friendly compound water reducer. The high-efficiency and environment-friendly compound water reducer comprises the following raw materials in parts by weight: 100-120 parts of a polycarboxylate-type water reducer, 8-15 parts of a corrosion inhibitor, 1-5 parts of a defoaming agent, 5-16 parts of an antifreezing agent, 22-35 parts of an initiator and 300-350 parts of water. The high-efficiency and environmental-friendly compound water reducer is prepared by the following steps: adding the polycarboxylate-type water reducer and water into a reaction kettle during preparation, heating to 55 DEG C, and stirring for 30-45 minutes; heating to 90 DEG C, adding the defoaming agent and the initiator, and stirring for 2-3 hours; cooling to 45 DEG C, adding the corrosion inhibitor and the antifreezing agent, and stirring for 0.6-0.8 hour. Concrete prepared from the high-efficiency and environmental-friendly compound water reducer has the beneficial effects that the water-reducing rate is relatively high and exceeds 28%, and the gas content is relatively low; the concrete is applicable to seasons with relatively high or low temperature.

The invention discloses clothes treatment equipment and a putting component thereof as well as a putting device. The putting component comprises a putting box and a liquid discharging component, wherein the putting box is provided with a main flow passage, a first flow passage and a second flow passage; the main flow passage switchably communicates with one of the first flow passage and the secondflow passage; the first flow passage communicates with a first wash bucket of the clothes treatment equipment; the second flow passage communicates with a second wash bucket of the clothes treatmentequipment; the putting box is further provided with a liquid discharging flow passage; the liquid discharging component is arranged on the putting box and is configured to control the on-off of the liquid discharging flow passage; the liquid discharging component disconnects the liquid discharging flow passage under a condition that the putting component supplies liquid to the first wash bucket orthe second wash bucket; and the liquid discharging component conducts the liquid discharging flow passage under a condition that the putting component stops supplying liquid to the first wash bucketand the second wash bucket. According to the putting component of the clothes treatment equipment, the liquid in the main runner can be discharged through a drainage channel, and risks such as frost crack damage to the putting box are avoided.

The invention provides a water source heat pump air conditioner operating system and belongs to the field of water source heat pump air conditioner control devices. The water source heat pump air conditioner operating system is characterized by further comprising a computer master controller and a one-way water flow switch; the one-way water flow switch is connected with the computer master controller; the computer master controller is connected with a well water pump and a compressor and controls the well water pump and the compressor to be started and stopped; the one-way water flow switch is installed on a well water inlet pipeline; and the one-way water flow switch can detect the water flow rate in the well water inlet pipeline, and when the detected water flow rate is lower than the preset value, the computer master controller closes the well water pump and the compressor. According to the water source heat pump air conditioner operating system, normal use of an air conditioner circulation system can be ensured; meanwhile, all the components can be coordinated and controlled to organically, orderly, scientifically and reasonably operate; and the situation that the compressor, the well water pump and other important equipment are damaged due to dry burning or frozen injuries and other failures caused by the outdoor environment can further be avoided, the service life of the air conditioner circulation system is prolonged, and the quality of the air conditioner circulation system is improved.

The invention relates to a frost damage prevention light platform structure, which includes a light platform foundation pile body. The frost damage prevention light platform structure is characterizedin that a precast reinforced concrete sleeve is installed around the light platform foundation pile body, a gap is left between the precast reinforced concrete sleeve and the light platform foundation pile body, and the gap is filled with fine pebbles. According to the frost damage prevention light platform structure, the precast reinforced concrete sleeve is installed around the light platform foundation pile body, frost heaving force generated by frozen earth directly acts on the outer surface of the sleeve, free frost heaving of the sleeve is achieved, the direct effect of the frozen earthon a light platform foundation pile is isolated, frostbite damage such as platform face pulling crack and platform foundation dislocation of the light platform structure caused by 'frost heaving' isavoided, the service life of the light platform structure is prolonged, a great deal of money for repairing, reinforcement or reconstruction is saved, and the basic requirements of building a conservation-oriented society are met.

The invention relates to a container, in particular to an air-conditioning refrigerated container for a polar environment. The container comprises a box body, wherein a vertically-arranged separationplate is arranged in the box body; and the periphery of the separation plate is in fixed sealing connection with the inner cavity of the box body, and therefore the inner cavity of the box body is divided into two parts, one part is internally provided with a fresh-keeping cabin, and the other part is internally provided with an equipment cabin. An air-conditioning refrigerated device used for controlling the environment in the fresh-keeping cabin is arranged in the equipment cabin. The container is characterized in that heat preservation layers cover the separation plate and the box body; anda first inlet is formed in the outer wall of the box body corresponding to the equipment cabin, a first sealing door is arranged on the first inlet, a second inlet is formed in the separation plate,and a second sealing door is arranged on the second inlet. The air-conditioning refrigerated container has the advantages of being relatively large in application range.

The invention discloses a ferment of agricultural products, a preparation method and an application thereof. The ferment is prepared from the following components in percentage by weight: 15 percent of compound amino acid, 5.7 percent of diammonium phosphate, 25 percent of potassium nitrate, 10 percent of monopotassium phosphate, 12.3 percent of magnesium sulfate monohydrate, 0.028 percent of monohydrate zinc sulphate, 0.072 percent of monohydrous manganese sulphate, 2.9 percent of anhydrous ferrous sulphate, 15 percent of anhydrous calcium chloride, 2 percent of phenol compound, 2 percent ofglutaminase and 10 percent of chitin. The ferment can effectively prompt crops to absorb fertilizers, reduce the use of chemical fertilizers without causing any environmental pollution, activate cellsof the crops, help the crops carry out metabolism and effectively improve the quality of the agricultural products. The ferment can also prompt the growth of the crops, improve the antibacterial effect of the crops and ensure that diseases and pests are difficult to damage parts of stems, leaves, and the like of the crops. The ferment can effectively increase the harvest of the crops and improvethe color and the refreshing time of the crops.

The invention discloses a new smart pharmacy innovation management service device, which comprises a base, a processor and a smart detection assembly. Moreover, No. 1 cabinet, No. 2 cabinet and two trolley racks are arranged at the top end of the base. A plurality of drawers are arranged in the No. 1 cabinet. An outer wall of one side of the No. 2 cabinet is hinged with a heat insulation door, andan inner wall of the No. 2 cabinet is provided with a refrigeration compressor. A same containing table is arranged at top ends of the No. 1 cabinet and the No. 2 cabinet. A specimen display mechanism and an information display mechanism are arranged in the containing table. Universal wheels are arranged at four corners of an outer wall of the bottom end of the base. A power distribution cabinetis arranged at the bottom end of the No. 1 cabinet. The invention can store different types of western medicine samples and be mounted with label plates. A sign on which a corresponding western medicine name can be written is slidably placed in a No. 1 sliding slot of the label plates. Therefore, it is convenient for search of medicine in the drawers. An inner box with a ventilation cover is arranged in the drawers, and drying agent can be stored in the inner box, thereby ensuring a dry storage environment for the medicine in the drawers.

The invention discloses a purging inspection device of a continuous casting three-machine three-flow spraying system. The device comprises a second-cold water main pipe, a nitrogen main pipe, a first-flow spraying system, a second-flow spraying system and a third-flow spraying system, wherein one end of the second-cold water main pipe is connected to a second-cold water pipe network, and the other end is respectively connected to the first-flow spraying system, the second-flow spraying system and the third-flow spraying system through three second-cold water branch pipes; four spraying pipes are respectively arranged in the first-flow spraying system, the second-flow spraying system and the third-flow spraying system; the second-cold water branch pipes are communicated with corresponding four spraying pipes; and one end of the nitrogen main pipe is connected to a nitrogen pipe network, and the other end is respectively connected to each spraying pipe through metal hoses. The purging inspection device of the continuous casting three-machine three-flow spraying system can effectively drain water remained in the spraying pipes and nozzles to largely reduce the formation of incrustations and to effectively reduce the blockage rate of the nozzles.

The invention discloses a double-pipe peristaltic pump with a single head and a single rotor. The double-pipe peristaltic pump comprises a pump head upper cover, a pump head middle cover and a pump head bottom cover, and a fastening block is fixed to the upper side of the pump head upper cover; the right side of the pump head upper cover is provided with a first bearing of which the right side isprovided with a first rotor indexing disc, and the surface of the first rotor indexing disc is provided with assembly holes in a penetrating manner; the right side of the first rotor indexing disc isprovided with stepped shafts of which the right sides are provided with central shafts, and each central shaft is internally provided with a connecting hole in the penetrating manner; a carrying holeis formed among the central shafts, and the right side of the pump head middle cover is provided with a first water pipe; the pump head middle cover is located on the right side of the central shafts,and the first water pipe is internally provided with an electric heating screen of which the inner side is provided with an inner pipe; and the middle of the pump head bottom cover is fixedly provided with a bearing pedestal, and the pump head bottom cover is located on the right side of a second bearing. The double-pipe peristaltic pump with the single head and the single rotor has the advantages of high working efficiency, stable structure, large flow, and relatively simple and reliable structure.

The invention discloses a 5G signal tower electric distribution box, and the box comprises a box body; a protruding rod is slidably clamped to the top of the inner wall of the box body, and adjustingmechanisms are installed on the left side and the right side of a shell; each adjusting mechanism comprises a rack, a gear, a grooved wheel, a belt, a straight rod, a handle and a short rod, and the right sides of the two racks are fixedly connected with the left side of the shell up and down. A gear of the adjusting mechanism is matched with a rack in a rotating mode to drive the shell to move front and back, the internal structure can be adjusted out, the trouble of semi-deep maintenance is omitted, operation is convenient, the working difficulty is reduced, a handle is prevented from beingdirectly damaged during deicing, use is guaranteed, and the practicability is improved;the slow rotation of the inclined plate and the effective low vibration force avoid the vibration damage to the structure, and prolong the service life; through cooperation of the shielding mechanism and the shell, two-layer wrapping of the internal structure is achieved, low temperature is effectively blocked,freezing damage of the internal structure is prevented, normal use is guaranteed, and popularization is facilitated.

The invention discloses frost prevention equipment for teaching. The frost prevention equipment comprises a box body, temperature sensors, flues, a cigarette lighter, a controller and a battery, wherein the four temperature sensors are provided, are respectively located at corners above the box body and are located in a protective cover; the two flues are provided, are located above the box body and are communicated with a combustion chamber in the box body; the cigarette lighter is located inside the box body and is respectively connected with the controller and the battery which are locatedin the box body; the controller is connected with the temperature sensors and is powered by the battery; the bottom of the box body is further provided with four bases; and two sides of the box body are further provided with handles. The frost prevention equipment is reasonable in design, simple in structure and use and capable of effectively reducing the phenomenon that crops are destroyed by frosts; and the cigarette lighter is reasonably adopted to light a smoke formation material and generate smoke by which the temperature above a farmland or a planting greenhouse is increased and frost injury is avoided, so that the planted plants are protected.

The invention is applicable to the technical field of fruit cultivation and provides a fruit cultivating method with breathable cold-proof cloth. The method comprises (1) when the temperature falls into a certain temperature range, arranging a plurality of support rods by taking a fruit tree as the center and around the outside of the fruit tree at a certain radius so as to position the fruit treeinside the plurality of support rods; (2) covering the fruit tree and the support rods with the breathable cold-proof cloth of a certain area and ensuring contact between the breathable cold-proof cloth and the ground; (3) tying ropes to the edge of the breathable cold-proof cloth, tensioning the rope and fixing the rope to a certain position with a fixing member so that the breathable cold-proofcloth can be in a convex shape to cover the fruit tree. The fruit cultivating method with the breathable cold-proof cloth can avoid cold damage, frozen damage and frost damage to fruits, improve thebearing rate of the fruit tree in the coming year and effectively reduce the shrinkage rate and the drop rate of the fruits as well as consumption of sugar in the fruits. Meanwhile, the fruit cultivating method with the breathable cold-proof cloth is convenient and simple to operate, and simply by supporting the breathable cold-proof cloth with the support rods, saves erection of fruit supports and is low in labor costs.