42results about How to "Facilitate energy exchange" patented technology

A gas blowing negative pressure suction device comprises vacuum chamber 9, pressure chamber 6, ejection channel 7, negative pressure suction channel 10, exhaust channel 8, sprinkler plate 1, left side board 2, and right side board 3. Said pressure chamber 6, ejection channel 7 and exhaust channel 8 are set on the sprinkler plate 1 and they communicate with each other. Said vacuum chamber 9 is set on the front of the sprinkler plate 1, the negative pressure suction channel 10 is symmetry set on the side wall of the ejection channel 7, a one-way valve 19 is set on the negative pressure suction channel 10, a front chamber 13 and a behind chamber 14 are symmetry set on the left side board 2 and right side board 3 to make one end of chamber 13 connect to the channel 10, the other end of chamber 13 connect to the chamber 9, the behind chamber 14 connect to the channel 8, when the board 2 and board 3 cover the sprinkler plate 1. The invention provides a gas blowing negative pressure suction device with low noise, simple construction, and easy production.

The invention provides graphene modified flame-retardant heat conducting nylon plastic and a preparation method thereof. The graphene modified flame-retardant heat conducting nylon plastic is preparedfrom, by mass, 44-72% of high-fluidity nylon 6, 5-10% of negative ion powder, 5-10% of sulfonated graphene, 1-3% of spherical ceramic powder, 3-6% of polyamide elastomer, 10-20% of a flame retardant,3-5% of a flame-retardant synergist and 1-2% of processing additives. The graphene modified flame-retardant heat conducting nylon plastic prepared according to the method integrates flame retardationand high heat conductivity, the heat conductivity reaches 5W / m. or above, and the flame retardation level is V-0.

The invention provides a preparation method for sensitization-enhanced green light-emitting high-silica glass. The preparation method comprises the following steps: melting borosilicate glass, controlling heat treatment conditions, restricting the degree of phase-splitting and carrying out acid leaching so as to obtain porous glass which contains a part of residual Na <+> ions; dipping the porous glass in a solution containing Tb and Eu ions for immersion and doping; and sintering the porous glass at a high temperature in a reducing atmosphere so as to obtain the compact sensitization-enhanced green light-emitting high-silica glass. According to the invention, since a glass structure has Na <+>, energy transfer between ion is achieved and the excitation band of Tb<3+> ions is transferred and becomes about 320 nm instead of about 245 nm, thereby not only effectively increasing the excitation bandwidth of Tb<3+> but also greatly improving luminous intensity. The sensitization-enhanced green light-emitting high-silica glass prepared in the invention is expected to be used as a novel luminescence and laser material in a variety of fields like scientific research, national defense and health care.

The invention discloses a flame-retardant heat-conducting nylon and a preparation method thereof. The flame-retardant heat-conducting nylon comprises the following components in percentage by mass: 25-30% of nylon resin, 10-15% of antistatic resin, 25-35% of heat-conducting filler, 12-15% of anion powder, 10-20% of flame retardant, 0.1-2% of coupling agent, 0.1-5% of lubricant and 0.1-2% of antioxidant. The components are granulated by a double screw extruder to prepare the modified flame-retardant heat-conducting nylon. The prepared heat-conducting nylon has the advantages of favorable toughness, favorable flame retardancy, high heat conductivity and high heat dispersion, and can be widely used in various LED (light-emitting diode) lamp shells.

The invention discloses a cost-reducing, high-efficiency and energy-saving air source heat pump unit laboratory system, which includes an experimental room, the experimental room includes a working condition machine room and a machine to be tested, a fan coil is installed in the working condition machine room, and the fan coil The pipe is connected to the energy storage water tank and forms a circulation loop with the energy storage water tank. The energy recovery circulation pump and valves are arranged on the circulation loop; the tested machine is connected with the tested machine water tank, and the tested machine water tank is connected with a proportional Type three-way valve, the other end of the proportional three-way valve is connected to the energy storage water tank, and the other end is connected to the energy storage water tank through the energy exchange circulation pump. The present invention recovers energy by adding an energy storage water tank, a fan coil unit, a proportional three-way valve, and a frequency conversion water pump. When energy exchange needs to be increased, the energy exchange can be increased by adjusting the frequency of the water pump and the proportional three-way valve; according to the fan The temperature difference between the coil and the room temperature can more finely control the energy exchange between the laboratory room and the energy storage tank.

This invention relates to a slot-type gas flow injection device including a high pressure cavity, an injection cavity the low pressure cavity, among which, one end of the injection device is connected with the high pressure cavity via a channel, the other end has an exhaust outlet, the high pressure cavity penetates high pressure gas to the inject cavity via the channel, a channel opening is set on the sidewall of inject cavity which is connected with a low pressure cavity via the channel, absorbs gas in the low cavity via the channel and exhausts gas via the outlet characterizing that the channel is composed of a rectangular slot and its connected wedge channel changing from narrow to wide speeds-up expansion after passing through them. The cross section of the infect cavity is rectangle.

The invention discloses a blade assembly for tidal current energy power generation and a tidal current energy water turbine. A blade assembly for tidal current energy generation, comprising: a blade and a plurality of suppressors, the plurality of suppressors are distributed along the length direction of the blade, the suppressor includes a bottom plate and two side plates, and a plurality of suppressors are formed on the bottom plate groove, the side plates are arranged on the corresponding side of the bottom plate, and the two side plates are arranged obliquely; an inflow area is formed between one ends of the two side plates, and the two side plates An outflow area is formed between the other ends, the width of the inflow area is smaller than the width of the outflow area, and the bottom plate is arranged on the surface of the blade. To optimize the hydrodynamic performance of the blades to improve the power generation efficiency of tidal energy turbines.

A piezoelectric-electromagnetic combined energy gathering vibration damping device is arranged below a floor or a decking, and aims to gather the kinetic energy in the floor or decking and convert same into electric power for storage; the electric power can be released so as to form a damping effect, thus alleviating the floor or decking vibrations; the piezoelectric-electromagnetic combined energy gathering vibration damping device mainly comprises an inductance coil, a permanent magnet, a lithium ion battery, a particle damping container, a multi-grading electromagnetic particle damping, a piezoelectric ceramics, a loading plate, anchoring bolts, an insulation pad, and an electric quantity identification and control induction member; anchoring bolts are reserved on the loading plate and the piezoelectric ceramics; each member is placed in the loading plate according to required positions; the whole device is fixed below the floor or decking through the anchoring bolts. The piezoelectric-electromagnetic combined energy gathering vibration damping device can gather and utilize the energy of vibrations in the environment, and can effectively alleviate the floor or decking vibrations.

The invention provides a tight coupling ring rectangular hole gas nozzle atomizer capable of improving the atomization efficiency which comprises a liquid guide pipe and a lower body arranged on the outer surface of the liquid guide pipe in a sleeved mode; the atomizer comprises an upper body which is a hollow tube body structure and is sleeved outside the lower body, and a closed gas parking space capable of stabilizing the gas pressure is formed between the upper body and the lower body; the inner surface of the upper body end port is a conical surface or a conical-shape surface which is inclined towards the tail end of the liquid guide pipe; the outer surface of the lower body end port is in sealing contact with the conical surface or the conical-shape surface of the upper body througha corresponding cone shape surface, between the contact of lower body and the upper body; and a plurality of rectangular gas nozzles communicating with the outside and the gas parking space are uniformly arranged along the circumference. The rectangular channel can be a two-dimensional contraction type or two-dimensional contraction-expand (laval) type gas nozzle. According to the atomizer, the efficiency for the kinetic energy of the high-speed airflow on the relatively static liquid and liquid drops is improved, and the liquid and the liquid drops are atomized into finer liquid drops.

The invention relates to a magnetic impulse abrasive water jet cutting machine. The water tank of the magnetic impulse abrasive water jet cutting machine is connected to a filter, a plunger pump, a stop valve and a pressure gauge in sequence through a pressure resistant rubber pipe. A safety valve is connected to the bypass, a one-way valve is connected after the plunger pump and the safety valve, the water pipe is divided into three branches after the one-way valve, the first branch is connected to the upper end of an abrasive tank, the second branch is connected to the lower end of the abrasive tank through an abrasive amount adjusting valve, an abrasive mixing device is connected to the lower end of the abrasive tank, the third branch is connected to the abrasive mixing device though a water amount adjusting valve, a magnetic impulse device is connected to the abrasive mixing device, the magnetic impulse device stretch out and is connected to a spray gun, the magnetic impulse device makes the abrasive jet generate periodic impulses, thus impulse abrasive water jet is formed, the materials are cut by the impulse abrasive water jet, which are ejected from the spray gun, and the goal of cutting operation is achieved. The magnetic impulse abrasive water jet cutting machine is suitable for cutting, surface washing and derusting of various materials.