36results about How to "Achieve antifreeze effect" patented technology

A water-based fire extinguishing agent that can be adjusted in proportion. The water-based fire extinguishing agent includes A component, B component and water; A component includes the following raw materials in parts by weight: 5-20 parts of fire extinguishing components, 0.5-3 parts of surfactant, 0.01-0.1 part of water-soluble natural essence and 2-5 parts of EDTA metal salt; component B includes the following raw materials in parts by weight: 8-15 parts of flame retardant, 5-10 parts of antifreeze, and 1-3 parts of glyoxime. When the combination ratio of A and B components in the fire extinguishing agent of the present invention is ≤1, the fire extinguishing agent is suitable for Class A fires, and when the above ratio is greater than 1, the fire extinguishing agent is suitable for Class B fires. Flexible preparation can not only extinguish fire efficiently but also avoid waste of resources; on the one hand, the addition of raw material pentaerythritol can effectively prevent flashback and reburning, on the other hand, it can also make the amount of antifreeze lower than the conventional amount, that is, at a lower amount Finally, it was unexpectedly found that the addition of glyoxime can synergize with the fire extinguishing agent and flame retardant to further improve the fire extinguishing effect.

The invention discloses an anti-freezing control method of a low-temperature air source heat pump heater. By means of the method, a required anti-freezing level can be judged automatically according to the temperature, and then corresponding devices are started for anti-freezing treatment. When the environment temperature is not very low, a water pump is started to run intermittently, and a watersystem is made to generate current to prevent freezing; when the environment temperature is low and water is still in a low-temperature state even after a first-stage freezing prevention mode of the water pump is started, a second-stage freezing prevention mode is started, heating starts, special treatment is carried out on defrosting at low water temperature, efficiency reduction caused by excessive frosting in the running process is avoided, and the water temperature is increased quickly to prevent freezing; and under the situation that the system cannot implement the second-stage freezing prevention mode due to refrigerant absence, start failure of a compressor and the like, a third-stage freezing prevention mode can be started, and an auxiliary electric heater of the water system is started to directly heat water to increase the temperature, so that the anti-freezing effect is achieved. By adoption of three-stage anti-freezing design, freezing prevention of the water system when the air source heat pump heater is in a standby state or shutdown state or failure state under the low-temperature environment is thoroughly achieved.

The invention discloses a toilet with an automatic dirt collecting function.The toilet comprises a chamber, a toilet bowl located in the chamber, a flushing system for flushing the interior of the toilet bowl, a suction mechanism, a dirt collecting assembly and a first valve.The suction mechanism comprises a gas-liquid separation box, a vacuumizing device and a dirt inflow pipe.The gas-liquid separation box comprises a box body and a conical net, a vacuum connector is arranged on the top of the box body, a dirt inflow opening is formed in one side of the box body, a dirt outlet is formed in the bottom of the box body, the conical net is fixedly arranged in the box body and located above the dirt inlet, and the external diameter of the conical net is gradually reduced from top to bottom.The dirt collecting assembly comprises a dirt discharge pipe and a dirt collecting bag, the upper end of the dirt discharge pipe is used for being communicated with the dirt outlet, the dirt collecting bag is detachably installed at the lower end of the dirt discharge pipe, and the interior of the dirt collecting bag is communicated with the lower end of the dirt discharge pipe.The first valve is installed between the dirt discharge pipe and the dirt outlet and used for controlling communication or isolation of the dirt discharge pipe and the dirt outlet.Dirt of the toilet bowl can be automatically collected, and an anti-freezing effect can be achieved.

The invention discloses a pipe-freezing-proof device of a solar water heater. The pipe-freezing-proof device comprises a heat-preservation water tank. The upper end of the heat-preservation water tank is provided with a sensor socket, the lower end of the heat-preservation water tank is provided with a water conveying pipe, the upper end of the water conveying pipe is provided with an electromagnetic valve, the lower end of the water conveying pipe is provided with a hot water valve and a tap water valve, the lower end of the electromagnetic valve is connected with a tee joint, and the sensor socket is communicated with the tee joint through a gas guide pipe. The electromagnetic valve is a normally-closed electromagnetic valve. The pipe-freezing-proof device of the solar water heater is simple in structure, suitable for various solar water heaters, effectively solves the freezing-proof problem of the solar water heater in winter and greatly saves electricity when compared with the prior art.

The invention relates to an anti-freezing solar street lamp with a cleaning function based on internet of things. The anti-freezing solar street lamp with the cleaning function based on the internet of things comprises a lamp pole, a solar panel and two illumination mechanisms. The solar panel is fixed to the top end of the lamp pole, and the two illumination mechanisms are correspondingly arranged on both sides of the lamp pole. A cleaning mechanism is arranged in the lamp pole. Anti-freezing mechanisms are arranged on both sides under the solar panel separately. Each illumination mechanism comprises rotating assemblies and cooling assemblies. The cleaning mechanism comprises a power assembly and two cleaning assemblies. Each rotating assembly comprises support rods, rotating rods, rotating motors, rotating gears, turning gears, lamp arms and notches. According to the anti-freezing solar street lamp with the cleaning function based on the internet of things, the function of cleaning is achieved by the rotating assemblies and the cleaning mechanism, and moreover, the anti-freezing effect of the street lamp is achieved by the cooling assemblies and the anti-freezing mechanisms.

An environment-friendly flame-retardant antifreeze water-based fire extinguishing agent, the water-based fire extinguishing agent includes the following raw materials in parts by weight: 5-20 parts of fire-extinguishing components, 2-5 parts of EDTA metal salt, 0.5-5 parts of surfactant, and 0.01 parts of water-soluble natural essence ‑0.1 part, 1‑3 part of pentaerythritol, 4.9‑7.8 part of flame retardant, 2‑7.5 part of antifreeze, make up to 100 parts of water. The compounding of pentaerythritol and ethylene glycol and other antifreezing agents of the present invention can effectively achieve the antifreezing effect at a relatively low amount of antifreezing agent; the flame retardant and pentaerythritol can form a non-combustible carbon layer, which can resist backfire and recombustion, and is beneficial to fire extinguishing The inventor also found unexpectedly that adding quantitative sodium ammonium phosphate in the flame retardant can further shorten the average fire extinguishing time of the fire extinguishing agent, the average number of fire extinguishing times and reduce the surface tension of water. The fire extinguishing agent of the present invention is transparent, stable in storage, environment-friendly, low temperature resistant, suitable for extinguishing class A fires and class B fires, and has simple preparation method, cheap and easy-to-obtain raw materials, and is a high-efficiency water-based fire extinguishing agent suitable for large-scale industrial production .