56results about How to "Avoid the risk of bursting" patented technology

The invention discloses a beverage making method of a horizontal type rotation beverage making machine. The beverage making machine comprises a machine base with a brewing cavity, a brewing head, a water inlet pricking needle arranged at the brewing head, a leading-out pricking needle arranged at the brewing head, a liquid supply mechanism for supplying liquid to the brewing head and a brewing cup for containing a material bag; and one end of the brewing head is connected with the liquid supply mechanism, and the other end of the brewing head supplies the liquid to the interior of the material bag. The beverage making method includes the water inlet step, the making step and the beverage discharging step; a driving device is additionally used in the making step to drive the water inlet pricking needle to rotate, so that a jet flow area is formed by the water inlet pricking needle, beverage powder is flushed by liquid flow in the jet flow area so as to be mixed and dissolved, and therefore mixing dissolution of the liquid and the beverage powder is quickened; in addition, the beverage powder is sufficiently dissolved, residues are avoided, and the taste and the nutritive value of a beverage are improved; meanwhile, the rotation jet flow motion is formed by the water inlet pricking needle in the rotation process, dissolution of the beverage powder is better promoted, and the making efficiency and the taste of the beverage are improved.

The invention provides an automatic safe control device of an industrial waste heat recovery system. The automatic safe control device is based on the industrial waste heat recovery system. Temperature sensors are mounted on a heat-pipe-type cooler and are used for measuring the temperature; the port of a condenser is provided with a temperature sensor for measuring the cooling amount of the entire system, and a pressure sensor is mounted on the condenser for measuring the pressure of working fluid inside the system; signals of the sensors are inputted into the control system, and safe and effective utilization of industrial waste can be realized by controlling the number of the working fluid inside the system.

The invention relates to a machine tool cooler device and a numerically controlled machine tool system. The machine tool cooler device comprises a closed water tank, a heat exchange device and a bypass pipeline. The water tank water outlet of the closed water tank passing a unit water pump communicates to the heat exchange water inlet of the heat exchange device, the heat exchange water outlet ofthe heat exchange device communicates to the water inlet of a machine tool, the water outlet of the machine tool communicates to the water tank water inlet of the closed water tank, a water supplementing port and a bypass water outlet are formed in the closed water tank, and the water supplementing port can communicate to an external water supply device. One end of a bypass pipeline communicates to the bypass water outlet while the other end of the bypass pipeline communicates to the heat exchange device. Therefore, cooling water in the machine tool cooler device is still in a closed space during water supplementation, and meanwhile, residual water or air also can flow into the heat exchange device from the bypass pipeline, so that the condition that the closed water tank cracks is avoidedeffectively.

The invention provides a liquid level measuring device for a double-chamber balance container. The device comprises a double-chamber balance container barrel body, an upper sealing head, a lower sealing head, an upper connecting pipe, a lower connecting pipe, a T-shaped communicating vessel, a positive pressure pipe, a blow-off pipe, a condensing coil, a negative pressure pipe, a boiler, a steam pocket steam phase guide pipe, a blow-off treatment antifouling discharge pipe structure, an automatic control release pipe structure capable of preventing steam pressure from being too high and an adjustable support mounting frame structure. According to the arrangement of the double-chamber balance container barrel, condensed water flowing back from the condensing coil can be collected and discharged into a descending pipe of a boiler, the whole container is heated and subjected to heat storage in the flowing process, it is guaranteed that the temperature in the container and the temperaturein a steam pocket are consistent, and then the accuracy of a measurement result is guaranteed. The arrangement of the T-shaped communicating vessel is beneficial to ensuring that the water level height of the communicating vessel changes along with the water level of the steam drum, so that the pressure of the positive pressure side changes along with the pressure change of the boiler steam drum,thereby ensuring the measurement accuracy, reducing the liquid level measurement error and improving the detection efficiency.

The invention discloses a corrosion-resistant automobile tail pipe. A first exhaust pipe is installed on the end face of one side of a main connection tail pipe body through an installation piece. The outer wall of one side of the main connection tail pipe body is provided with a secondary connection tail pipe body. A second exhaust pipe is installed on the end face of one side of the secondary connection tail pipe body. An external thread is arranged on the outer surface of one side of the main connection tail pipe body. An outer ring is arranged on the outer portion of the first exhaust pipe, and an inner cavity is formed in the inner side of the outer ring. Vent holes are formed in the outer wall of the outer ring. An inner cavity is formed inside the first exhaust pipe. A filter is installed between the first exhaust pipe and the main connection tail pipe body. A fixed ring is fixed to the inner wall of the main connection tail pipe body. As the filter is installed at the junction of the min tail pipe body and the first exhaust pipe, large particles can be prevented from entering the main tail pipe body, an engine is protected and can operate normally, and the operation requirements are met.

The invention provides a method for refining the microstructure of a hot-extruded magnesium alloy, comprising: cooling the hot-extruded magnesium alloy by applying liquid nitrogen to the hot-extruded magnesium alloy; the cooling device includes: a bracket ( 10); be fixed on the support (10) and be used for storing the liquid nitrogen storage tank (4) of liquid nitrogen; Support (10) is the inverted U-shaped baffle that covers on the workpiece (8), the inverted U-shaped baffle The top surface and two side surfaces have a baffle structure; a nozzle (7) arranged at the outlet of the liquid nitrogen storage tank (4), the nozzle (7) is used to spray liquid nitrogen onto the workpiece (8); A valve (6) arranged between the liquid nitrogen storage tank (4) and the nozzle (7); the flow rate of liquid nitrogen in the cooling process is 0.6-1.2m 3 / h. The invention adopts a specific cooling device and controls the flow rate of liquid nitrogen to avoid the risk of liquid nitrogen splashing and profile bursting, and the microstructure of the hot-extruded magnesium alloy is obviously refined.

The invention relates to a minitype water heater which facilitates daily washing in kitchens, is small in size and convenient to use, and has an automatic safety protection function. The minitype water heater comprises a heating container, an electric heating pipe and a safety protection switch device, wherein the electric heating pipe is inserted in the heating container, the heating container is provided with a water inlet pipe and a water outlet pipe, the water inlet pipe is arranged on the lower portion of the heating container, the water outlet pipe is arranged on the upper portion of the heating container, a water inlet valve is arranged on the water inlet pipe, a water outlet valve is arranged on the water outlet pipe, the water outlet valve is provided with a water outlet channel connected between the water inlet end of the water outlet valve and the water outlet end of the water outlet valve, and the safety protection switch device comprises a pressure sensor and / or an overheat protector.

The invention provides a high-strength wear-resistant mixing drum for constructional engineering. The mixing drum comprises a drum body, two sides of which are provided with driving guide rails. A stirring device is arranged inside the drum body. The stirring device comprises stirring vanes, support columns, a rotation shaft and a rotation wheel. The stirring vanes are installed on the rotation shaft through the support columns. The rotation wheel is installed on a rotation disc. A liftable anti-sediment net is arranged between the driving guide rails. The inner wall of the drum body is provided with a wear-resistant ceramic coating. The outer wall of the drum body is equipped with a Teflon coating, outside which a TPU layer is disposed. By arranging the wear-resistant ceramic coating on the inner wall of the drum body, anticorrosion capability and anti-cavitation erosion capability of a filter are greatly raised, and service life of the equipment is prolonged. The Teflon coating as an explosion-proof effect and can prevent explosion risk of the drum body. By arranging the TPU layer, mechanical strength and bearing capacity of the equipment are enhanced.

The invention discloses a multifunctional student desk which comprises a desk body and a desk top, wherein two desk legs of the desk body both have a box-shaped structure; an air cushion, a switch and an air pump are arranged in the box-shaped structure; the air cushion is adhered to the inner surface of the box-shaped structure and is connected with the air pump; the switch is arranged on the box-shaped structure and is connected with a miniature air pump; the miniature air pump is built in the box-shaped structure. The multifunctional student desk provided by the invention is fit for various students; the use is convenient; the use area can be effectively increased; learning tools, such as pens and erasers, can be conveniently cleared up, so as to keep the desk top clean; besides, the air cushions arranged in the desk legs can be timely inflated to form a space for accommodating the student for hiding in emergency, so as to avoid hurt and achieve the function of temporary hiding; the pressure sensor can be used for avoiding the risk of air cushion explosion in the inflation process.

The invention belongs to the technical field of manufacturing workpieces or products from metal powder, and discloses a novel P-based compound Ag 6 Ge 10 P 12 Preparation method of high thermoelectric performance material, doped polycrystalline Ag 6 Ge 10 P 12 It has very superior thermoelectric performance, doping about 3% Ga can improve the overall performance by 2-3 times, and the time required for material growth is comparable to other traditional polycrystalline thermoelectric materials (about one week). Compared with many phosphorus-based thermoelectric materials, the highest PF (determining the electrical properties of the material) and the highest zT (determining the thermoelectric performance) or the average zT (determining the conversion efficiency) are currently the best. The present invention successfully prepares Ag 6 Ge 10 P 12 Polycrystalline bulk material; solves the problem of excessive vapor pressure generated by phosphorus during the growth process, and the explosion of the quartz tube due to excessive vapor pressure; the effective doping method of Ga element improves the thermoelectric performance of the material.

The invention provides an automatic safe control device of an industrial waste heat recovery system. The automatic safe control device is based on the industrial waste heat recovery system. Temperature sensors are mounted on a heat-pipe-type cooler and are used for measuring the temperature; the port of a condenser is provided with a temperature sensor for measuring the cooling amount of the entire system, and a pressure sensor is mounted on the condenser for measuring the pressure of working fluid inside the system; signals of the sensors are inputted into the control system, and safe and effective utilization of industrial waste can be realized by controlling the number of the working fluid inside the system.