385results about How to "Prevent frost cracking" patented technology

A method for cleaning sewage by vertical undercurrent type artificial wet land in northern area features that a scientific microbe carrier network consisting filler layers, insulating reproduction layer, etc is disclosed for fast forming a biomembrane system for playing its cleaning role without plants in the winter, a deeply buried multi-layer water tube network can prevent freeze and cracking, and more insulating techniques are used to keep the temp of sewage to be treated to 15-20 deg.C.

The invention discloses a heat-conducting medium, comprising the following components of, by weight, 65-90 parts of ethylene glycol or propylene glycol, 15-30 parts of water, 0.15-2.0 parts of sodium benzoate, 0.15-1.5 parts of methyl benzotriazole, 0.35-1.2 parts of sodium molybdate, 0.15-1.0 part of potassium hydroxide, 0.8-1.5 parts of methanol, 0.8-1.2 parts of silicone oil, 0.15-0.7 part of triethanolamine or diethanolamine or monoethanolamine and 0.55-1.5 parts of sodium nitrate or magnesium nitrate. The heat-conducting medium provided by the invention can increase heat efficiency of a boiler, reduce or eliminate corrosion of the heat-conducting medium to a boiler liner or a heat supply system and increase the heat efficiency by 7-10%, without producing precipitates such as water scale and the like. The heat-conducting medium can prevent phenomenon of frozen cracks of equipment when heat is supplied in winter. Besides, the heat-conducting medium provided by the invention is not volatile and is a semi-permanent liquid that can be used for a long time after one time injection.

The invention discloses an instant hot constant temperature solar energy hot-water system comprising a heat collecting pipe, a water storage tank, an upper water pipe, a lower water pipe, a cold water inlet, a hot water outlet, an electromagnetic valve and a three-way valve, wherein, a meter controller is connected in series between the three-way valve and the hot water outlet; the water storage tank is provided with a water tank water level sensor and a water tank temperature sensor; and the meter controller is provided with a heater, an inlet temperature sensor, an outlet temperature sensor and a flow sensor to distinguish a concentration control system in an electric connection meter controller. The instant hot constant temperature solar energy hot-water system monitors the solar energy heater by utilizing the meter controller with the heater and a plurality of sensors; when the water temperature is not high enough, the heater is automatically started to rapidly heat the lower water, thus ensuring the effluent water to achieve the use temperature; when the water temperature achieves the requirement, the heater is closed, thus saving the energy sources; and when the outside air temperature in winter is too low, the pipe wall heater is automatically started, so as to prevent the water pipe from being frozen to crack, thus leading the solar energy water heater to operate all the time, and making fully use of the solar energy sources.

The invention provides a water divider temperature control system with an antifreezing function, belonging to the technical field of heating equipment in construction industry. The water divider temperature control system is characterized in that a stepping motor is arranged on a support in a temperature control valve; the output shaft of the motor is connected with a screw, and the screw is in threaded connection with the upper part of a linkage piece to automatically control opening and closing of the valve; if the ambient temperature is lower than the memory temperature of a memory alloy, the memory alloy shrinks; and under the push of a reset spring, a magnet ring bush moves upwards, and then the valve is open, thus avoiding an indoor radiator or a pipeline freezing crack.

The invention discloses an anti-freezing device for a closed cooling tower. The anti-freezing device comprises a water inlet pipe of the cooling tower and a water outlet pipe of the cooling tower, wherein the water inlet pipe of the cooling tower is connected to the water inlet end of the closed cooling tower, and the water outlet end of the closed cooling tower is connected with the water outlet pipe of the cooling tower. The anti-freezing device for the closed cooling tower is characterized by comprising an anti-freezing machine device. The anti-freezing machine device comprises a water inlet pipe of the anti-freezing machine and a water outlet pipe of the anti-freezing machine, wherein the water inlet pipe of the anti-freezing machine is connected with the outlet pipe of the cooling tower, the water outlet pipe of the anti-freezing machine is connected with the water inlet pipe of the cooling tower; the water inlet pipe of the cooling tower is provided with a first valve; the water outlet pipe of the cooling tower is provided with a second valve; the water inlet pipe of the anti-freezing machine is provided with a third valve; the water outlet pipe of the anti-freezing machine is provided with a fourth valve; and a pipeline at the back of the third valve is provided with a pump and a check valve successively in water flow direction. The anti-freezing device for the closed cooling tower is convenient to operate and reliable in work, can effectively prevent a coil pipe of the closed cooling tower from frost crack in winter, and ensures a normal operation of the closed cooling tower in winter.

The invention discloses an anti-freezing pressurized gas water heater. The anti-freezing pressurized gas water heater comprises a gas water heater shell body, a heat exchanger installed in the gas water heater shell body, a coiled pipe wound on the heat exchanger, a water inlet pipe and a water outlet pipe which are connected with the coiled pipe, and an anti-freezing heating body arranged on the coiled pipe. The anti-freezing pressurized gas water heater is characterized in that a bypass pipe, an electric three-way valve and a booster pump are further arranged in the gas water heater shell body, the water inlet pipe is communicated with the water outlet pipe by the bypass pipe through the electric three-way valve, the water inlet pipe, the coiled pipe and the water outlet pipe form a circulation loop, and the booster pump is arranged on the circulation loop; and a temperature probe is further arranged on the heat exchanger or the coiled pipe, and the anti-freezing heating body, the electric three-way valve, the booster pump and the temperature probe are all connected with a gas water heater main controller. The anti-freezing pressurized gas water heater disclosed by the invention is simple in installation structure; and moreover, water flow is cooperated with the anti-freezing heating body to heat while flowing in a closed-loop pipeline, the water flow is uniformly heated, and double anti-freezing effect is acted, so that the coil pipe of a water-stopping box is effectively prevented from frost cracking.

The invention discloses a low-clinker high-impermeability field floor hardening material based on dry process desulfurized fly ash. The material comprises, by volume, 10-40 parts of blast furnace slag, 5-45 parts of converter steel slag, 0.1-40 parts of sandy soil, 5-20 parts of sintered desulfurized ash, 5-8 parts of slag powder, 1-2 parts of cement, 0.1-2 parts of an additive and 12-13 parts ofwater. Batching, stirring, paving, rolling and curing construction are carried out in sequence on the components, thus obtaining the low-clinker high-impermeability field floor hardening material. Theinvention adopts blast furnace slag, converter steel slag, sintered desulfurized ash and sandy soil as the main raw materials, and takes an appropriate amount of slag powder and a small amount of cement as the auxiliary materials, the obtained field floor hardening material has a strength grade up to C10-C25, and can replace low-strength grade concrete for application to floors of factories and mines, storage yards and construction sites and roadbases.

The invention relates to an electric heating water pipe. The electric heating water pipe comprises a water pipe, wherein the pipe wall of the water pipe is provided with an inner layer pipe wall and an outer layer pipe wall, a reinforcing layer is arranged between the inner layer pipe wall and the outer layer pipe wall, the inner layer pipe wall is internally provided with an electric heating wire, one end of the water pipe is provided with a temperature sensor which is tightly attached to the outer layer pipe wall of the water pipe, the temperature sensor is used for measuring the temperature of the pipe wall of the water pipe and controlling the switching on and off of a circuit of the electric heating wire, and the other end of the water pipe is provided with an electric plug which is electrically connected with the electric heating wire and is positioned out of the water pipe. The electric heating water pipe disclosed by the invention has the advantages that the water pipe can be effectively prevented from being subjected to frost cracking, and electric energy can be saved.

The invention discloses a hydraulic pressure type hot water recovery unit, relating to a water-saving frost crack resistant device and aiming at providing a hydraulic pressure type hot water recovery unit which has simple structure, saves water and energy and can prevent pipelines from frost crack. The recovery unit is composed of a blowoff valve, a cold water pipe, a cold water tank, a cold water valve and a water pump, wherein the blowoff valve comprises three working holes, the first working hole is communicated with a hot water tank, the second working hole is communicated with an outlet valve via a hot water pipe, and the third working hole is communicated with external air; one end of the cold water pipe is connected on the junction of the hot water pipe and the outlet valve, and the other end thereof is arranged in the cold water tank; the water pump and the cold water valve are arranged on the cold water pipe; and the cold water tank is internally provided with a water level sensing device. When the outlet valve is opened, the first working hole and the second working hole of the blowoff valve are communicated, and the cold water valve and the water pump are closed; when the outlet valve is closed, the cold water valve is opened, and the water pump is started; and when the water level sensing device senses a low water level, the water pump is closed, and the second working hole and the third working hole are communicated.

The invention discloses a solar water heating system with a ceramic sun panel operated and controlled by single water pump. The system consists of a ceramic solar heat collector, a lower circulation pipe, a water pump, a temperature-conservation heat storage water tank, an upper circulation pipe, inlet and outlet air pipes, a heat collector temperature sensor, a water tank temperature sensor and a controller; the circulation system of the solar water heating system of the ceramic sun panel is not provided with any valve so as to ensure the water channels and gas channels to be unimpeded under any condition; and the outlets of the inlet and outlet air pipes are 0.5-2 meters higher than an upper collection pipe. When the temperature in the ceramic solar heat collector reaches the set temperature delta A, the controller orders the water pump to be started, and when the temperature in the ceramic solar heat collector reaches the set temperature delta B, the water pump stops working, the ceramic solar water heating system can not be frozen to be cracked under any condition, the problem of great heat loss in hot water can not happen, and the system has a simple structure and low cost.

The invention provides a coiled tube anti-frost-cracking system used for an air conditioner with double heat sources. The coiled tube anti-frost-cracking system comprises an air conditioner coiled tube, a water inlet pipeline, a water outlet pipeline, and further comprises a dewatering branch, a ventilating branch, an inlet water temperature sensing device, an outlet water temperature sensing device and a controller, wherein the dewatering branch is arranged near an inlet of an air conditioner coiled tube; the ventilating branch is arranged near an outlet of the air conditioner coiled tube; the inlet water temperature sensing device is arranged near a water inlet pipeline at an inlet of the air conditioner coiled tube; the outlet water temperature sensing device is arranged on the ventilating branch; the controller is used for controlling, according to a user's instruction and a temperature measured by the inlet water temperature sensing device and the outlet water temperature sensing device, water feeding, water discharging, dewatering and gas exhausting. According to the coiled tube anti-frost-cracking system and the coiled tube anti-frost-cracking method for the air conditioner with double heat sources as well as the air conditioner with double heat sources, the dewatering branch, a dewatering valve, a gas exhausting branch and a gas valve are additionally arranged to timely exhaust water in a fan coiled tube, so that the coiled tube frost-cracking is effectively prevented. Meanwhile, during operation of a heating mode, water in the coiled tube is not heated for a second time, so that energy-saving effect can be achieved.

The invention discloses a modified water-separating damper for a water inlet of a covered pipe of a cooler. The modified water-separating damper comprises a cooling pipe and is characterized in that the cooling pipe is provided with a water-separating damper body mounted on the front lateral part of the cooling pipe. The water-separating damper body comprises a front cover recess plate and a back cover plate, a plurality of water outlets are evenly distributed in the back cover plate, the water inlet pipes are connected to the front end face of the front cover recess plate and communicated with the same, dampers are mounted in the middle positions inside the front cover recess plate and welded on the inner side of the front cover recess plate, and face to the water inlet pipes. According to the arrangement,the inflowing water firstly impacts on the dampers, and then evenly impacts on the whole covered pipe inside; since the water does not impact directly on the cooling pipe, impact force generated is greatly reduced, impact on welding points of the cooling pipe inside is further greatly reduced, and service life of equipment is thus prolonged.

The invention discloses a heat collecting module of a metal-glass sheathing heat collecting pipe, belonging to the field of the solar thermal energy utilization technology. The current all-glass vacuum heat collecting pipe is not pressure-bearing, is easy to be explosive and is not anti-freezing, thereby being difficult to be applied to a heat collecting project; a selective heat absorption coating layer (a magnetron sputtering vacuum coating film) of the heat collecting pipe inner pipe outer surface of a vacuum heat pipe is easy to fall off under long-term basking. A vacuum glass pipe in the invention is the heat collecting module of the metal-glass suit heat collecting pipe, which does not contact working medium and is pressure-bearing and antiseptic and has high heat absorption efficiency and low heat emissivity. The heat collecting pipe comprises a glass vacuum heat preservation pipe and a metal heat collecting pipe, the heat collecting pipe is arranged in the glass vacuum heat preservation pipe, the outer surface of the heat collecting pipe is plated with copper chemically and a black nickel layer is electroplated after copper plating is carried out. Meanwhile, a flow channel blind plate is additionally arranged in a water filling circulating flow channel to separate cold and hot water working medium, and the water filling circulating flow channel is directly connected with a water filling pipe to guide cold water to directly reach the bottom part of the metal heating collecting pipe; and a new pressure-bearing connection type of connecting a collecting pipe and the heat collecting pipe is provided.

The invention discloses a direct heat-supply system adopting mine water waste heat. According to the system, mine water is directly adopted for supplying heat to a mine wellhead in winter, it is guaranteed that the air mixing temperature of the mine wellhead is not lower than 2 DEG C, and freezing of side spraying water in an air inlet shaft of a mine is prevented. The system comprises devices ofsubmersible sewage pumps, a quartz sand filter, plate-type heat exchangers, circulating water pumps, a softened water device and a low-temperature-type wellhead heating unit. Compared with the heat-supply modes of traditional coal-fired boilers of coal producing enterprises, according to the system, only a small amount of electric energy is consumed, the automation degree is high, and the operation cost is extremely low; emission of waste gas, waste water and solid waste is completely avoided, and cleanliness and reliability are achieved; and on the premise of effectively guaranteeing safety production of a mine lot, the mine water waste heat resource is fully utilized, and the mine lot is assisted to achieve environment-friendly production.

The invention discloses an automatic drainage frost crack prevention water heater which comprises a shell. A temperature controller, a fuel gas proportional valve, a controller, a yielding water temperature problem, a water outlet, an air inlet, a water yield adjusting knob, a water inlet, a drainage outlet, a drainage electromagnetic valve, a water flow sensor, a burner, a heat exchanger, a windpressure switch and a draught fan are sequentially arranged inside the shell from the upper left portion to the upper right portion. Compared with the prior art, the automatic drainage frost crack prevention water heater is additionally provided with the automatic drainage electromagnetic valve on the basis of an original water heater, when the air temperature is too low in winter, the water heater can automatically sense the outdoor temperature after the water heater is used, sensing signals are transmitted to the drainage electromagnetic valve, the electromagnetic valve moves to start drainage, automatic closing is achieved after drainage is completed, and the effect that the water heater cannot be subjected to frost cracking at the temperature of zero DEG C is guaranteed. The frost cracking probability of internal parts of the water heater for weather variations is avoided, and the service life of the water heater is greatly prolonged.

The present invention discloses a double-pipe type solar water-heater. Its waterway is divided into upper and lower two water pipes, on the upper water pipe a water-supplying electromagnetic valve and a temperature-measuring probe are mounted, the electroheater in the water tank is controlled by temperature control regulation instrument, on the lower water pipe are successively mounted a pipe electroheater, booster pump and hot water valve, between upper water pipe and lower water pipe a circulation pipeline is connected so as to form a loop, the circulation electromagnetic valve is mounted on the circulation pipeline. Its electric circuit portion includes temperature-measuring probe, temperature sensor, temperature control regulation instrument, level sensor, electromagnetic valve, booster pump and automatic control instrument, etc. Besides, said invention also provides its working principle and its concrete operation method.

The invention discloses an anti-blocking and anti-freezing two-cavity sink for a kitchen. The sink comprises a large cleaning cavity and a small cleaning cavity. The large cleaning cavity and the small cleaning cavity are located on the left side and the right side of the sink for the kitchen respectively. Water outlet slot ways are arranged in the large cleaning cavity and the small cleaning cavity respectively and provided with garbage filter nets. The upper portions of the garbage filter nets are provided with drainage valves. The lower end of the large cleaning cavity and the lower end of the small cleaning cavity extend to be provided with drainage pipes. The other ends of the drainage pipes are in sealed connection with a connecting piece. The lower end of the connecting piece is fixedly connected with a garbage processing device. The garbage processing device is communicated with a water outlet pipe through a deodorization bent pipe. Protruding waterproof flanges are arranged on the periphery of the sink for the kitchen, and the side face of the small cleaning cavity is provided with multiple containing grooves. The sink for the kitchen is provided with the garbage processing device, garbage can be smashed and discharged, the drainage pipes of the sink for the kitchen are anti-freezing drainage pipes, hollow layers in the drainage pipes are provided with heating resistance wires, and therefore the drainage pipes can be protected against frost cracking in cold weather.

The invention discloses an air conditioner and a defrosting method thereof and relates to the field of air conditioning. The defrosting method is used for realizing defrosting without lowering the comfort. The air conditioner comprises a first heat exchanger, a second heat exchanger and spraying heads, wherein the spraying heads communicate with the fluid of the first heat exchanger, a pipeline is arranged between the spraying heads and the first heat exchanger, and a drain valve is arranged at the lowest part of the pipeline. According to the technical scheme, by arranging the drain valve, the drain valve is opened for draining accumulated water in the pipeline after defrosting is completed each time, the pipeline is protected against frost splitting, and therefore the use range of the air conditioner defrosted through hot water is expanded, and the air conditioner can be applied to cold areas.