77 results about "Ice binding" patented technology

The invention relates to water pump equipment, in particular to a frost crack prevention water pump which aims to solve the problem that the traditional anti-freezing water pump cannot fundamentally prevent frost cracks, while some people propose that the inner wall of a water meter or a pipeline is provided with an expansion layer, though the frost cracks can be prevented, freeze is difficult to thaw from outside after icing. The frost crack prevention water pump comprises a pump case, an impeller and a flow guide pipe, wherein the impeller is externally provided with a water outlet cover with an axle center hole, and the water outlet cover divides the internal space of the pump case into an impeller chamber and a front chamber which are mutually communicated; the flow guide pipe is arranged in the front chamber, and one end of the flow guide pipe is connected with a water inlet pipe extending into the pump case, while the other end is connected with the axle center hole of the water outlet cover; the flow guide pipe is externally sleeved with an elastic expansion piece; and the elastic expansion piece is large at both ends and small in the middle, provided with an axle center hole and made of a non-hygroscopic elastic material. The frost crack prevention water pump has the advantages of simple structure, frost crack prevention and easier thawing and is widely suitable for various cold environments.

The invention relates to a control method for a frostless refrigerator. An additional heating wire is installed on the back of the refrigerating chamber of the frostless refrigerator. An air duct heating wire is arranged in the air duct system of the frostless refrigerator. Both the additional heating wire and the air duct heating wire are respectively connected with a magnetic sensitive switch and are controlled to heat by means of the magnetic sensitive switch. When the ambient temperature t is lower than or equal to t1, a heating wire control circuit is switched on and the additional heating wire and the air duct heating wire start heating. When the circuit is switched on and the ambient temperature t is higher than or equal to t2, the magnetic sensitive switch acts and the heating wire control circuit is switched off. The additional heating wire and the air duct heating wire stop heating. According to the invention, through increasing refrigerated load and refrigerated cycle wind, the functional faults, such as frosting and icing in an air duct system and the like, caused by less cycle wind when the refrigerator is used in a low-temperature harsh environment, can be solved, thus the stability and reliability of the mechanical frostless refrigerator can be improved.

Spin-labeled ice binding compounds (IBCs) including ice binding proteins (IBPs) or antifreeze proteins (AFPs) and their analogs may carry paramagnetic centers for dynamic nuclear polarization (DNP), for enhancing nuclear magnetic resonance (NMR) signal intensities. Use of spin-labeled IBCs to perform DNP exploits the IBCs' ability to homogeneously distribute the paramagnetic centers in frozen water solution at low temperature, leading to high DNP efficiency. Other advantages of using spin-labeled IBCs include cryo-protecting biological samples; cryo-preserving relative positions and orientations of the spin labeling groups; selecting positions and orientations of spin labeling groups with freedom and without technical barriers to making multiple spin labels in an IBC; and enabling use of a solvent that is primarily water for DNP at low temperatures in view of the potentially high water solubilities of spin-labeled IBCs.

The invention relates to the technical field of fire-fighting equipment, and discloses a high-safety winter anti-freezing fire-fighting nozzle which comprises a fire-fighting nozzle body. A threaded pipe is arranged at the top of the fire-fighting nozzle body, a fire-fighting water inlet is arranged in the threaded pipe, a water blocking plug is movably installed at the bottom of the fire-fightingwater inlet, and two sealing gaskets are fixedly installed between the periphery of the water blocking plug and the bottom end of the fire-fighting water inlet and located on the water blocking plug.A glass ball is arranged under the water plugging plug, and the glass ball is filled with heat-sensitive liquid. According to the high-safety winter anti-freezing fire-fighting nozzle, a special-shaped deicing tray is arranged to be in the shape of a plane with the top end concaved inwards, the top end of the special-shaped deicing tray can be a weak stress face, when water in the fire-fighting water inlet is iced and expanded in volume, the special-shaped deicing tray breaks preferentially compared with the glass ball, and the ice in the fire-fighting water inlet is in contact with exposed sodium chloride powder in the special-shaped deicing tray to reduce the freezing point, so that the problem that freezing continues to generate to squeeze the glass ball to cause damage is avoided.

The present invention relates to novel polypeptides comprising an ice-binding capability resulting in an ice crystal formation and / or growth reducing or inhibiting activity. The present invention also relates to an edible product and to a solid support comprising the novel polypeptide. Furthermore, the present invention also relates to a method for producing the novel polypeptide and to different uses of the novel polypeptide.

The invention provides an anti-freezing explosion-roof valve used for a civil water-heating stove and the civil water-heating stove. The anti-freezing explosion-roof valve comprises a valve body screw cap (101), a valve body housing (102), a valve body embedded head (103), an explosion-roof membrane (104), a membrane fastening part (105), a spring (106) and a spring non-return part (107), wherein the valve body housing (102) is cylindrical, and outer threads are arranged on the side wall of the valve body housing; one end of the valve body housing (102) is fixedly arranged at one side of the valve body screw cap (101), and inner threads are arranged on the side wall, close to the valve body screw cap (101), of the valve body housing (102); a ring-shaped groove (1021) is formed inside the side wall of the valve body housing (102); the valve body embedded head (103) is cylindrical; one end of the side wall of the valve body embedded head is equipped with a first ring-shaped bump (1031) which is bulged outwards, and the other end of the side wall of the valve body embedded head is equipped with a second ring-shaped bump (1032) which is inwards bulged; and inner threads are arranged on the side wall of the valve body embedded head. According to the scheme, when circulating water in a water gasket is iced, ignition is carried out to burn the stove, so that the anti-freezing explosion-roof valve still can release pressure timely to achieve an explosion-roof function.

The invention discloses a chestnut safe fresh-keeping storage device and a method thereof, belonging to the technical field of chestnut storage devices, comprising: a cylinder body; a sealing mechanism, which is detachably arranged on the cylinder body to seal the cylinder body; In the cylinder, there is a first chamber for accommodating water between it and the cylinder, and the first chamber is filled with water; and arc-shaped cooling fins are detachably arranged on the cylinder to realize refrigeration and make The water in the first chamber freezes. The present invention aims to solve the technical problem that energy saving and environmental protection cannot be realized in the process of fresh-keeping and cold storage in the prior art. In the present invention, the ice in the first chamber will become a mixture of ice and water, which still has an extremely low temperature, which is also good The effect of fresh-keeping storage is better, and then the second-level fresh-keeping storage is realized. During the process from the first-level fresh-keeping storage to the second-level fresh-keeping storage, the arc-shaped refrigeration sheet is in the stop state, which can save a lot of electric energy, and then realize the effect of energy saving.

The invention provides a frost-resistant enhancer for slag-based base materials and a preparation method thereof. The freeze-resistant enhancer is composed of the following raw materials in parts by weight: 50-80 parts of pore filling and stress buffering components, skeleton support 5-10 parts of components, 5-10 parts of freezing point depressing components, 5-10 parts of early strength enhancing components; wherein, the skeleton support component and the freezing point depressing component are loaded in the pore filling and stress buffering on the components. The antifreeze enhancer provided by the invention can be filled inside the pores of the slag, which can effectively reduce the frost heave stress caused by the freezing of water in the pores, and play the role of buffering the frost heave stress, and form overlapping crystals inside the pores The skeleton restricts the frost heaving behavior of the moisture inside the pores, lowers the freezing point of the moisture in the pores, and then improves the antifreeze effect of the slag-like semi-rigid base material, and reduces the impact of the freeze-thaw cycle on the base material.

The invention relates to the technical field of air conditioners, particularly to a control method of an air conditioner, and aims to solve the problem that a coil of an indoor unit is liable to ice and frost when a conventional air conditioner operates in a refrigeration mode when the outdoor environment temperature is relatively low. The control method of the air conditioner comprises the stepsof acquiring the operation mode of the air conditioner; when the operation mode is the refrigeration mode, acquiring the operation frequency of a compressor of the air conditioner and the outdoor environment temperature; and judging whether the air conditioner needs to enter the low-temperature refrigeration mode or not based on the operation frequency and the outdoor environment temperature. According to the control method, whether the air conditioner needs to enter the low-temperature refrigeration mode or not is judged based on the operation frequency of the compressor and the environment temperature in the refrigeration mode, the accuracy of judging whether the air conditioner needs to enter the low-temperature refrigeration mode or not can be improved, and the icing / frosting phenomenon of the indoor unit of the air conditioner is effectively reduced or avoided.

Spin labeled ice binding compounds (IBCs) including ice binding proteins (IBPs), also called antifreeze proteins (AFPs) and their analogs are exploited to carry the paramagnetic centers for dynamic nuclear polarization (DNP), for enhancing nuclear magnetic resonance (NMR) signal intensities. Use of spin labeled IBCs to perform DNP exploits the IBCs' ability to homogeneously distribute the paramagnetic centers in frozen water solution at low temperature, leading to high DNP efficiency. Other advantages of using spin labeled IBCs include: (1) ability to cryo-protect biological samples; (2) the relative positions and orientations of the spin labeling groups in an IBC may also be cryo-preserved; (3) positions and orientations of spin labeling groups to an IBC can be selected with great freedom and without technical barrier to making multiple spin labels in an IBC; and (4) water solubilities of spin labeled IBCs are potentially high, enabling use of a solvent that is primarily water for DNP at low temperatures.

The invention discloses an anti-freezing gate air inlet mechanism which comprises a bottom shaft, a sleeve core, a rotation sleeve, an air inlet pipe and an air outlet, wherein the bottom shaft is arranged at the bottom of a dam body and in a hollow structure with a through hole inside; the sleeve core is mounted in the through hole of the bottom shaft and in a hollow structure with a sleeve corecenter hole inside; a guide groove which extends peripherally is formed in the periphery of the sleeve core and communicated with the sleeve core center hole; the rotation sleeve is rotationally mounted on the sleeve core, an air inlet which is communicated with a rotation sleeve center hole is formed in the periphery of the rotation sleeve, and in the relative movement process of the sleeve coreand the rotation sleeve, the air inlet is always communicated with the guide groove; the air inlet pipe penetrates through the bottom shaft and is connected with the air inlet of the rotation sleeve;the air outlet is formed in the periphery of the bottom shaft and communicated with the through hole of the bottom shaft and can stop the water surface from being frozen in cold weather so that the dam body can turn.

An anti-icing device for dry fog and dust suppression nozzles, which belongs to the field of fluid application technology, is characterized in that it fills the entire liquid circuit system with an antifreeze cleaning liquid composed of emulsified silicone oil and water at a ratio of 0.05%-5%. , and sprayed from the nozzle, the water molecules and air dissociated in the entire liquid circuit system are discharged or fused into the antifreeze cleaning liquid, the entire liquid circuit system and the dry fog dust removal nozzle will not freeze, and the water hole is always maintained Unobstructed device, the application of this device effectively solves the problem that the dry fog dust suppression nozzle cannot work normally due to freezing. In this way, the occurrence of vicious incidents caused by the loss of control of the nozzle icing liquid path can be avoided, and the whole process can be easily automated without causing secondary pollution to the environment, which brings great convenience for the maintenance of the dry fog and dust suppression system.