62results about How to "With antifreeze function" patented technology

The invention discloses a rapid hardening high-strength grouting material, which consists of the following components in percentage by weight: 40 to 55 percent of fast hardening sulphoaluminate cement, 40 to 55 percent of quartz sand, 1 to 5 percent of silicon micro-powder, 2 to 5 percent of high-calcium powder, 0.6 to 1.0 percent of FDN water reducer, 1 to 3 percent of anhydrite powder, 0.02 to 0.14 percent of lithium carbonate, and 0.2 to 1.4 percent of sodium chloride. The components are uniformly mixed, and stirred with water in a water/cement ratio of 0.14-0.18, and the grouting material can be used after uniform stirring. The grouting material is suitable for low-temperature construction, and has the characteristics of early strength, high strength, good flowing performance, no shrinkage, good anti-freezing effect and the like.

The invention discloses a preparation method of a multipurpose environmental protection adhesive for industrial use. The invention is obtained by polymerization reaction of methanol, VAE latex, dioctyl phthalate, butyl acrylate, sodium dodecyl sulfate, plasticizer, vinyl acetate (VAC), polyvinyl alcohol, acrylic acid and OP-10. The invention has the advantages of water resistance, waterlogging tolerance, notoxicity, non-formaldehyde performance, scarce deformation under wet or hot condition and antifreeze function, thus is necessary for domestic fitments.

The invention relates to an intelligent and efficient photovoltaic power generation apparatus with an anti-freezing function. The intelligent and efficient photovoltaic power generation apparatus comprises a solar panel and a light direction measurement box; a plurality of vibration assemblies are arranged below the solar panel; each vibration assembly comprises a first supporting rod, a first driving motor, a first connecting rod, a second connecting rod, a sliding rod and a plurality of vibration units; each vibration unit comprises a third connecting rod, a push rod, a connecting block, a spring and a vibration plate; and the light direction measurement box comprises a shell, a photosensitive element, a cover plate and a translational unit. According to the intelligent and efficient photovoltaic power generation apparatus with the anti-freezing function, the sunlight propagation direction can be detected through the light direction measurement box; a supporting rod is driven by a driving mechanism to enable the solar panel to face to the sunlight, so that equipment can fully absorb solar energy to perform photoelectric conversion, thereby improving the power generation of the apparatus; and furthermore, by virtue of the vibration assemblies, the vibration plates can knock the back surface of the solar panel, so that rain and snow can slide off the surface of the solar panel conveniently, thereby preventing from ice formation due to accumulation and influencing equipment operation.

The invention relates to a selenium-rich grape field management technology, and belongs to the technical field of crop management. The selenium-rich grape field management technology is characterized in that a sod culture method is adopted for management in the planting of selenium-rich grapes to finally obtain a field management technology for selenium-rich grapes which is less polluted and high in selenium content by being combined with fertilization management, supplement of microelements and spraying. Due to the implementation of a selenium richening technology, the growth is promoted, the leaf function is enhanced, cold resistance, drought resistance, disease and pest resistance and other resistance are improved, the fruit volume is promoted to be expanded, the content of sugar of the fruit is increased and the sweet and sour rate is improved; furthermore, the storing resistance and the transportation resistance are improved; the organic selenium content in the fruit is increased obviously (10 to 50 mcg/kg) in comparison with local ordinary grapes and the mouth feel is excellent; and the residual pesticides and the environmental pollution are reduced.

The invention discloses a constant-temperature gas water heater which comprises a gas water heater body, a circulating pipeline connected to the gas water heater body and a circulating device mounted on the circulating pipeline. The constant-temperature gas water heater is characterized in that the circulating device comprises a forward circulating module and a backward circulating module, and fluid in the circulating pipeline is circulated forwards under the action of the forward circulating module or circulated backwards under the action of the backward circulating module. The forward circulating module and the backward circulating module are arranged on the circulating device, the circulating water flow direction in the circulating pipeline of the gas water heater can be controlled, and therefore the constant-temperature gas water heater is precisely controlled to be turned on and off; and the gas water heater runs economically and reasonably in the preheating process, it is ensured that the temperature of all sections of the circulating pipeline is even after preheating is completed, and the functional defects of overheating, supercooling, sudden temperature changes and the like of a traditional circulating device are overcome. The invention further discloses a constant-temperature control method.

The invention discloses an anti-freezing device for a double-pipe heat exchanger and a manufacturing method of the anti-freezing device and belongs to the field of heat pumps. The anti-freezing device for the double-pipe heat exchanger comprises the double-pipe heat exchanger which is composed of an inner pipe and an outer sleeve, wherein the inner pipe and the outer sleeve are concentric. A plurality of inflated elastic balls are arranged in the inner pipe at equal intervals. The inflated elastic balls are butyl rubber balls. Gas in the inflated elastic balls is nitrogen. Furthermore, the inflated elastic balls are fixed to the inner pipe in an adhesion mode. The diameter of each inflated elastic ball is half that of the inner pipe. In addition, the total volume of the inflated elastic balls is two fifths the internal volume of the inner pipe. By the adoption of the anti-freezing device for the double-pipe heat exchanger, freezing is unlikely to happen, the anti-freezing effect is achieved, the structure is simple, and the cost is low.

The invention provides a leakage prevention exhaust valve. The exhaust valve comprises an exhaust valve and a buoyancy check valve, wherein the exhaust valve is arranged in a body of the buoyancy check valve; and the opening on the lower part of the body of the buoyancy check valve is hermetically connected with the main valve cavity of the exhaust valve; the buoyancy check valve comprises a valve body, an exhaust cylinder and a floating ball; the valve body consists of a valve cylinder, and a valve cylinder seal disc hermetically arranged on the upper part of the valve cylinder; the upper edge of the exhaust cylinder is provided with a seal disc baffle; the floating ball is arranged on the lower part of the exhaust cylinder; the long cylindrical valve cylinder replaces a valve shaft; an insulation layer is arranged outside the valve cylinder; an exhaust cylinder hole is formed on the valve cylinder seal disc, and the exhaust cylinder is arranged in the exhaust cylinder hole; a vertical exhaust slot hole is formed in the lateral wall of the exhaust cylinder; and a cylinder hole seal ring is sleeved on the lower part of the exhaust cylinder. The leakage prevention exhaust valve has the advantages of scientific design, double leakage prevention functions and a shaft-free frozen prevention function.

The invention relates to a remote control antifreezing thermostatic valve set and belongs to the technical field of water heating valves. The remote control antifreezing thermostatic valve set comprises a handheld remote controller and a remote control antifreezing thermostatic valve and is characterized in that remote control of temperature of the thermostatic valve is achieved, the valve is driven by batteries to operate, and memory alloy is disposed in a magnetic loop and imparts an antifreezing function to the remote control thermostatic valve.

The invention discloses an outdoor non-negative pressure water supply device having an anti-freezing function. The outdoor non-negative pressure water supply device comprises a base oil storage tank, a blending tank and an additive storage tank. The oil outlet end of the base oil storage tank and the oil outlet end of the additive storage tank are connected with the oil inlet end of the blending tank through oil guide pipes, an air outlet device is installed on an inner cavity of the blending tank, the air inlet end of the air outlet device is connected with the air outlet end of an air guide steel pipe, the air inlet end of the air guide steel pipe penetrates the side wall of the blending tank to the connected with the output end of a pulse electromagnetic valve, the input end of the pulse electromagnetic valve is connected with the output end of a high pressure air pump through a steel pipe, the signal input end of the pulse electromagnetic valve is connected with the signal output end of a pulse control instrument, the air outlet device is a spiral stainless steel pipe, and the side wall of the air outlet device is provided with an air outlet hole. The outdoor non-negative pressure water supply device having the anti-freezing function is simple in structure, low in cost and ingenious in design and performs stirring evenly.

The invention discloses an anti-freezing system, an anti-freezing heat exchanger and application, and belongs to the field of heat pump systems. The technical problem that under the condition that existing heat exchangers cannot use heat in the outside world during power failure, water pipes in heat exchange pipes are frost-cracked due to freezing is solved. The anti-freezing system comprises an outer pipe. An inner pipe is arranged in the outer pipe. The inner pipe is a hollow elastic hose. Under the condition that water is supplied, the expansion size caused by freezing is offset through shrinkage of the inner pipe during freezing, and the situation that because the outer pipe freezes and is expanded, the outer pipe cracks is prevented. The inner pipe is a silica gel pipe, a rubber pipe or a pearl wool pipe and is low in cost and easy to manufacture. The hollow part of the inner pipe is filled with inert gas, gas tightness and water tightness are good, and the inert gas is safe and good in stability. One end of the inner pipe is a fixed connector, and the other end of the inner pipe is a closed end. The fixed connector is fixed to the outer pipe, and the closed end extends into the outer pipe. By means of the anti-freezing system, the anti-freezing heat exchanger and the application, efficient heat exchange and freezing prevention are achieved, the structure is simple, the price is low, and installation is convenient.

The invention discloses a water distribution and exhaust device for a pressure filtration tank, the pressure filtration tank and a water distribution and exhaust method. The water distribution and exhaust device comprises a water distribution structure and an exhaust structure; the water distribution structure is arranged at the top end of the interior of a pressure filtering tank, and is composedof a bottom blocking plate and side blocking plates; a cylinder with an upper opening and a lower opening is formed by the side blocking plates; a plurality of through holes are uniformly distributedin the surface of the cylinder; the bottom blocking plate is arranged at the bottoms of the side blocking plates, and a container with an upper opening and a sealed bottom is formed by the bottom blocking plate and the side blocking plates; the upper opening of the side blocking plates and an top end opening of the pressure filtering tank are in sealing connection, and is communicated with a filtering inlet water dry pipe arranged at the top end opening of the pressure filtering tank. The water distribution and exhaust device is low in manufacturing cost; no blockage is caused, no pressure build-up is induced, no dead water area is formed, uniform water distribution is achieved, thorough exhaust is achieved, no freezing during operation in winter is caused, the treatment efficiency of oilfield pressure filter tanks is improved, and the service life is prolonged.

The invention discloses an anti-freezing hydrogel as well as a preparation method and application thereof. The anti-freezing hydrogel comprises the preparation raw materials: a polymeric monomer, an organic silicon material, a chain transfer agent and alcohols. The organic silicon material, the chain transfer agent and the alcohols are added into the hydrogel, so that the elasticity of the hydrogel in a frozen state can be effectively improved, and the unfreezing time is prolonged. The anti-freezing hydrogel has good bendability and stretchability and can be frozen in a freezing box of a refrigerator, crushed ice crystals are formed on the surface of the frozen gel, a gel body becomes milky white, the gel can be bent, the elongation at break can reach 200% or above, and the retention time at the low temperature can reach 1 h or above.

The invention discloses a device and a method for measuring the real incoming wind speed of a wind turbine generator. The measuring device is installed on a wind generating set cabin, and the device comprises a sensing detection device, a data processing and analyzing device and a display device. According to the method for measuring the real incoming wind speed of the wind turbine generator, themeasured real incoming wind speed is the center position of two rotating blades and can be detected by the measuring device. After the measuring device detects the wind speed and wind direction signal, the actual time value and the ideal time value of the detected wind signal passing through the blade rotating surface are calculated, the measured wind signal is compared and analyzed, and the realincoming wind speed is extracted from the collected wind speed signal according to the analysis result. According to the method, the real incoming wind speed can be extracted from the wind speed signal, and the control and operation of the wind turbine generator can be facilitated.

The invention discloses a pressure taking device for steam pocket pressure measurement. The device (1) comprises a main body part (E), a conduit part and an exhausting screwed plug (D), wherein the device is connected with a pressure transmitter film box (3) through a pressure guide pipe (2); the conduit part is divided into a first conduit (A), a second conduit (B) and a third conduit (C) which are connected with the bottom part, the side part and the top part of the main body part (E) respectively and extend into the main body part (E); the first conduit (A) is connected with a steam pocket (4) through a steam pocket pressure-taking root valve (5); the second conduit (B) is connected with the pressure guide pipe (2); an instrument needle valve is arranged on the third conduit (C); and the exhausting screwed plug (D) is in threaded connection with the main body part (E). The device has a simple structure, is convenient to mount and use, and greatly prolongs the service life of a pressure transmitter.

The invention relates to a closed cooling tower cooling device for forging and stamping industries. A coil is fixed on a support, an air inlet grill is arranged on a closed cooling tower, a cold oil outlet is formed in one end of the coil, a hot oil inlet is formed in the other end of the coil, a cold oil pipe is connected between the cold oil outlet and the inlet end of an oil tank, a hot oil pipe is connected between the outlet end of the oil tank and the hot oil inlet, a water collection tank is fixed in the closed cooling tower, a sewage drainage valve is arranged at the bottom of the water collection tank, an overflow valve and a water replenishing valve are arranged on the water collection tank, spraying fillers are arranged in the closed cooling tower, a bulk water disk is arranged in the closed cooling tower, the inlet end of the bulk water disk is connected with a spraying pipe, a spraying pump is arranged on the spraying pipe, and a fan is positioned at the top end of the closed cooling tower. Work oil of the closed cooling tower cooling device is cooled in a closed cycle mode, oil and water are separated, and oil leakage and oil-water streaming are avoided. The closed cooling tower cooling device improves production efficiency, saves water and reduces power consumption.

The invention discloses a community water meter with an anti-freezing function. The community water meter comprises a water meter body and a battery box. A connecting pipe of the water meter body is sleeved with a warm-keeping blanket. The two ends of the warm-keeping blanket are provided with a male hook-and-loop fastener and a female hook-and-loop fastener respectively, and the male hook-and-loop fastener adheres to the female hook-and-loop fastener; grooves are formed in the middle ends of the top and the bottom of the warm-keeping blanket, a heating wire, a heat conducting ring and an insulating layer are arranged in the warm-keeping blanket, the heating wire is sleeved with the heat conducting ring, the middle end of the bottom of the warm-keeping blanket is fixedly connected with the battery box, and a storage battery is placed in a containing groove of the battery box; the left side of the containing groove of the battery box is movably connected with a box door, and a control switch is arranged at the position, located below the storage battery, of the front face of the battery box. The community water meter with the anti-freezing function is simple in structure and convenient to use; the water meter can be better protected when winter comes, the situation that water in a water meter is frozen is avoided, and the utilization rate of the water meter is increased.

The invention relates to basa fish fillets, specifically to a preparation method for a basa fish fillet frozen product. The preparation method comprises the following steps: removing the unedible parts of basa fish fillets, carrying out cleaning, then sequentially subjecting obtained basa fish fillets to first-stage soaking and second-stage soaking with a water-retaining agent, then carrying out soaking with a fresh-keeping solution, and carrying out quick-freezing so as to obtain the basa fish fillet frozen product, wherein the water-retaining agent comprises the following components in percentages by weight: 0.05%-0.15% of flaxseed gum, 0.1%-0.2% of propylene glycol and 0.2%-0.45% of trehalose. According to the invention, through two-stage soaking treatment with a non-phosphorus water-retaining agent and treatment with the fresh-keeping agent, the quality and yield of the treated basa fish fillets can be improved, and the thickness of the ice glaze of the basa fish fillet frozen product can be greatly reduced.

The invention discloses a multi-stage inner pipe freeze-proofing system, a freeze-proofing heat exchanger and application, belongs to the field of heat pump systems, and aims at solving the technical problem that a water pipe in a heat exchanging pipe is iced and cracked in case that an existing heat exchanger is powered off and outside heat cannot be utilized. The multi-stage inner pipe freeze-proofing system comprises an outer pipe in which an inner pipe is arranged, wherein the inner pipe is a hollow elastic hose; more than one partition is arranged in the inner pipe. Under the condition that water is charged, the inner pipe contracts to counteract the expanding volume caused by icing, so that the outer pipe can be prevented from being expanded and cracked due to icing; a hollow part of the inner pipe is full of inertial gas, so that the gas tightness and the water tightness are high; the gas is stable, and thus the safety and the stability are high; the inner pipe can only be influenced by the external pressure; one end of the inner pipe is provided with a fixed connector which is fixed to the outer pipe, and the other end of the inner pipe is a closed end which extends into the outer pipe. The multi-stage inner pipe freeze-proofing system realizes efficient heat exchanging and freeze proofing, and is simple in structure, low in price, and convenient to mount.

The invention relates to a composite polymerization inhibitor for extracting and rectifying conjugated diene with dimethylformamide, and a use method. The composite polymerization inhibitor is characterized in that the inhibitor comprise a component A and a component B, wherein the component A is a mixed solution prepared by dissolving 4-hydroxyl-2,2,6,6-tetramethyl piperidine-1-oxygen, 2-hydroxyl ethylamine and an adjuvant in toluene; a weight concentration of 4-hydroxyl-2,2,6,6-tetramethyl piperidine-1-oxygen in the mixed solution is 10-20%; a weight concentration of 2-hydroxyl ethylamine in the mixed solution is 20-40%; a weight concentration of the adjuvant in the mixed solution is 5.0-20%; the adjuvant is alcohol, propyl alcohol, isopropanol, isobutanol, tertiary butanol or phenethyl alcohol; and the component B is a sodium nitrite aqueous solution with a weight concentration of 10-30%. The components of the polymerization inhibitor have synergistic effects, the polymerization inhibitor has a good polymerization inhibition effect, is not deposited in a tower, is convenient and accurate to use, is not crystallized and is freeze-resistant in a low temperature environment, and the consumption of a solvent is low.

The invention provides a filling valve for a filling machine. The filling valve comprises anti-freezing components which are fixedly arranged at the central positions of the outer surfaces of the front side, the rear side and the left side of a valve body and can prevent the valve body from being frozen, wherein each anti-freezing component comprise a shell, pretreatment components capable of making preparation in advance before residual liquid in the valve body is frozen, and heating components capable of rising the temperature outside the valve body; the shells are fixedly installed in the centers of the outer surfaces of the front side, the rear side and the left side of the valve body; the pretreatment components are movably installed at the left end and the right end in each shell correspondingly; and the heating components are movably installed between the center in each shell and the left and right lower ends. According to the filling valve for the filling machine, the anti-freezing function can be achieved outside the valve body, when the filling valve is subjected to liquid filling in the winter environment of northern China and stands still, even if the temperature outside the valve is low, residual liquid in the valve is not prone to freezing, the possible freezing fault can be eliminated in time, the filling valve is prevented from being damaged by freezing, and the subsequent use effect is ensured.