30results about How to "Increase the rate of temperature change" patented technology

The invention relates to a graphite-paraffin composite phase-changing and energy-storing concrete and a preparation method thereof. In the phase-changing and energy-storing concrete, cement, water, sand, gravels and a water reducer are used as substrates, and paraffin phase-changing materials, graphite with enhanced heat conducting function, and fiber reinforced materials with enhanced mechanical strength are also comprised. The preparation method comprise the steps of: firstly, mixing the paraffin and the graphite, heating until the paraffin totally melts, and continuously stirring to uniformly mix the paraffin and the graphite into a viscous form; putting the sand and the gravels into a stirrer, then putting fibers and the cement, carrying out dry mixing, adding the water and the water reducer subsequently, and rapidly stirring to reach a uniform state; and then putting the molten paraffin-graphite viscose mixture into the obtained concrete mixture, and uniformly mixing. Because the graphite is added into the paraffin to be used as an additive, the coefficient of heat conductivity of the phase-changing and energy-storing concrete is greatly enhanced, so that the heat storing and releasing efficiency of an energy-storing material is enhanced.

The invention discloses an electric knocking cracking and microwave collaborated heat driving gas extraction system and a method. The system comprises an ultra-high pressure water jet generating system, an electric knocking cracking system, a microwave heat injection system and a gas extraction system. In work, a drilling machine clamps the tail end of an insulating sleeve, and the front end of the insulating sleeve stretches into a gas extraction hole. The input end of a rotating sealing device of the drilling machine is connected with an ultra-high pressure water pump through a nanometer fluid pipeline, and the output end is connected with the tail end of the insulating sleeve. The using method of the system comprises the steps of construction of the gas extraction hole, injecting of nanometer fluid suspension liquid, discharging, heating and the like. According to the system, electric cracking is combined with microwave heat injection, the coal layer cracking and heat driving gas collaborated effect is achieved, the gas desorption efficiency is remarkably improved, the purpose of preventing and treating gas disasters is achieved, and efficient and safe mining of coal resources is achieved.

A method for controlling an internal combustion engine system including a catalyst includes receiving a desired output for an internal combustion engine, and receiving sensor information including information indicative of a temperature of the catalyst. The method includes calculating a plurality of sets of engine performance values based on respective sets of candidate control points, the engineperformance values including a temperature change rate at which the temperature of the catalyst changes over time, and determining whether the temperature change rate satisfies a minimum warmup rate for the catalyst. The method also includes controlling the internal combustion engine based on a selected set of candidate control points and the minimum warmup rate.

The present invention provides a flexible generation device through adoption of industrial waste heat and a manufacturing method thereof. Layers of membrane electrodes are made on the upper and lower surfaces of a pyroelectricity thin film, copper conductors are fixed on the upper and lower membrane electrodes through electric conduction silver paste to obtain a flexible heat collection device; a supercapacitor and the flexible heat collection device are connected in parallel, positive and negative electrodes are led out through the copper conductors to obtain a flexible generation unit; the PDMS is dripped on the flexible generation unit to allow the flexible generation unit to be completed wrapped by the PDMS thin film and only expose the copper conductors to obtain the flexible generation device through heating and solidification; at usage, the flexible generation device is pasted at the outer side of a beaker, an ampere meter is connected with the positive and negative electrodes through the copper conductors, different solutions are prepared in the beaker for chemical reaction to realize the different thermal electricity conversion efficiency through controlling the concentration of the chemical reagent and the stirring rate. According to the invention, the flexible generation device through adoption of industrial waste heat and the manufacturing method thereof can allow the waste heat generated in the industrial chemical reaction to perform direct collection and convert into electric energy.

The invention relates to a high temperature and pressure synchronous application method, and belongs to the structural heat intensity test field. A metal foil is adopted to substitute a metal plate, the gas pressure substitutes the metal plate to disperse the intensively-loaded pressure load in order to improve present high temperature-pressure synchronous application method, so the simulation precision of a temperature field and a pressure load is improved, and the raid synchronous coupling application of the temperature and the pressure is realized.

The invention provides a temperature control system and an optical console having the same temperature control system. The temperature control system comprises a refrigeration unit, a temperature controller and a switching power supply. The temperature controller controls the switching power supply to drive the refrigeration unit to carry out refrigeration or heating. The refrigeration unit comprises a copper heat radiation support plate, a first refrigeration sheet, a first heat insulation pad, an annular heat spacer, a temperature control copper block, a second refrigeration sheet, a second heat insulation pad and a heat radiation block. The two refrigeration sheets and the copper heat radiation support plate are used to cooperatively buffer temperature control, the conventional technical problem that the accumulated heat is high and the refrigeration is hard is solved, the temperature changing rate is greatly improved, the testing time is saved, the usage is convenient, and the low temperature refrigeration effect is good.

The present invention discloses a communicating type drum water-level sampling and measuring device and physical dimension determination method of said device. It includes steam communicating pipe, water communicating pipe, measuring barrel and blowdown flushing pipe. The closed measuring barrel interior includes a metering section on which a water-level detection sensing device is mounted, and the upper portion and lower portion of said metering section are respectively communicated with steam measuring hole connecting pipe and water measuring hole connecting pipe by means of steam communicating pipe and water communicating pipe, the blowdown flushing pipe is set in the lower portion of measuring barrel, and over the measuring barrel an additional steam chamber for conveying condensate into measuring section is set.

The invention relates to a microfluidic PCR chip. The invention belongs to the field of mechanical design and manufacturing and microfluidic control. According to the specific scheme, the microfluidicPCR chip comprises a control cooling plate, a microfluid reaction plate and a temperature control plate which are integrated together. The microfluid reaction plate is arranged between the control cooling plate and the temperature control plate; a feeding flow channel, a mixing flow channel, a pressure balancing flow channel, an annular circulating flow channel and a discharging flow channel arearranged on the microfluid reaction plate; the feeding flow channel is communicated with one end of the mixing flow channel, the other end of the mixing flow channel, the pressure balance flow channeland the discharging flow channel are all communicated with the annular circulating flow channel, the feeding flow channel, the mixing flow channel and the pressure balance flow channel are all located on the upper portion of the annular circulating flow channel, and the discharging flow channel is arrangedat the bottom of the annular circulating flow channel. Fluid in the micro-channel is drivenby heat flow circulation, so that the whole structure of the PCR chip is simplified, integrated and miniaturized, and on-chip temperature control and detection are realized more accurately.

The invention discloses a novel uniform temperature liquid cold plate, and relates to the field of heat dissipation equipment. The novel uniform temperature liquid cooling plate comprises a uniform temperature heat conducting plate body; and the bottom of the uniform temperature heat conducting plate body is connected with a heating component, the uniform temperature heat conducting plate body isuniformly internally provided with a plurality of heat conducting columns, the uniform temperature heat conducting plate body is internally injected with a uniform temperature plate filling refrigerant, the top of the uniform temperature heat conducting plate body is connected with a cold plate cavity, the uniform temperature heat conducting plate body and the cold plate cavity is enclosed into aclosed space, the closed space is provided with a plurality of cooling fins, a liquid inlet and a liquid outlet communicate with the closed space, and cooling liquid is injected into the closed space.Through organic combination of the uniform temperature plate technology and the cold plate technology, free control of the temperature is achieved, at the same time, the temperature change rate is improved, and the economical practicability is high. The device is simple in structure, electric components is not needed, the cost is low, and the cooling speed is fast.

The invention relates to an integrated environment simulation box of a liquid cooling heat-dissipation circuit board. The simulation box comprises a cold liquid supply assembly, a hot liquid supply assembly, a working box and an input liquid mixing pipeline, the liquid outlet end of the cold liquid supply assembly and the liquid outlet end of the hot liquid supply assembly are both connected withthe liquid inlet end of the input liquid mixing pipeline, and the liquid outlet end of the input liquid mixing pipeline extends into a sample test chamber of the work box. The simulation box has he advantages that during use, a test sample is placed in the sample test chamber, a liquid inlet interface in the test sample is communicated with the input liquid mixing pipeline, so that cold liquid supplied by the cold liquid supply assembly and hot liquid supplied by the hot liquid supply assembly can be input to the test sample via the input liquid mixing pipeline; and cold liquid is cooperated with hot liquid to adjust the simulated temperature of the environment, and compared with an air manner, the temperature can be controlled locally, and energy consumption is greatly reduced.

An earth surface environment comprehensive test platform with rapid temperature rising and cooling capacity comprises a box body, a refrigerating system and a PLC control system, a touch screen is arranged on the side wall of the box body, a temperature control sensor is installed at an air outlet of a circulating fan at the top of the box body, and an electric heater and a temperature controller for temperature protection are arranged in the box body. The refrigeration system comprises a cascade refrigeration compressor, an evaporator and a liquid nitrogen refrigeration device, the liquid nitrogen refrigeration device comprises a liquid nitrogen tank (1), an electromagnetic valve (2) and a liquid nitrogen flow dividing and leading-out pipeline (3), an outlet of the liquid nitrogen flow dividing and leading-out pipeline (3) is formed in the box body, and a time relay of the electromagnetic valve (2) of the liquid nitrogen refrigeration device is connected with a relay of the cascade refrigeration compressor in parallel; and the electric heater, the cascade refrigeration compressor and the circulating fan are all electrically connected with the PLC control system, the temperature control sensor and the temperature controller for temperature protection are electrically connected with the PLC control system, and the PLC control system is connected with the touch screen. The temperature change rate of the test box is greatly improved.

The invention discloses a solar capillary temperature gradient box, and relates to the technical field of solar heat collection. The temperature gradient box comprises a solar heat collector, a temperature control water tank, a low temperature water tank, a test box and a controller, wherein a heating coil pipe and a cooling coil pipe are arranged in the temperature control water tank. The test box comprises a heat preservation barrel body and an upper cover, wherein an annular wall type capillary heat exchanger and a metal inner barrel are coaxially arranged in the heat preservation barrel body from outside to inside, the annular wall type capillary heat exchanger comprises an upper ring tube, a lower ring tube and a capillary tube used for communicating the upper ring tube and the lowerring tube, and a water outlet tube and a water inlet tube are respectively arranged on the upper ring tube and the lower ring tube. The solar heat collector is connected with the heating coil pipe toform a first circulation loop; and the low temperature water tank and the cooling coil pipe form a fourth circulation loop, and the temperature control water tank is connected with the annular wall type capillary heat exchanger to form a third circulation loop. The annular wall type capillary heat exchanger is used for heat exchange, the solar capillary temperature gradient box has the characteristics of a large heat exchange area and a small heat exchange temperature difference, and the rapid temperature change and uniform temperature distribution in the box can be realized.

The invention provides a heat-storage heating body and a preparation method thereof. The heat-storage heating body comprises a heat storage brick and a heating plate; a cavity is formed in the middleof the heat storage brick; and the heating plate arranged in the cavity is in contact with the heat storage brick. And the heat storage brick is formed by integrated sintering. The eat-storage heatingbody consists of the heat storage brick and the heating plate. Because the heat storage brick is formed by integrated sintering and has an integrated structure and thus no many connection mechanismsare needed, so that the structure of the heating body is simplified and thus the heat storage brick that is formed by integrated sintering and has an integrated structure is convenient to operate. Furthermore, the cavity is formed in the heat storage brick, the heating plate is arranged in the cavity, and the heat storage brick and the heating plate are in close contact, so that the high utilization rate of the heat is ensured and thus the work efficiency of the heat-storage heating body is improved. Under the circumstance of equal heat storage heating, the temperature of the heating plate does not need to be too high, so that the service life of the heating plate is prolonged.

The invention discloses a grabbing type vacuum cup fixing system and a using method thereof. The grabbing type vacuum cup fixing system comprises a container and a bottom frame capable of being connected with the container. The grabbing type vacuum cup fixing system is characterized in that the container comprises a containing cavity and a plurality of heat dissipation cavities, wherein the plurality of heat dissipation cavities are formed in the cavity wall of the containing cavity, the axes of the multiple heat dissipation cavities are parallel to the axis of the containing cavity, the innerwall of the containing cavity is made of an HDF high-density aviation alloy material, and the outer wall of the containing cavity is made of a stainless steel metal material; and the bottom frame comprises a base and a plurality of heat dissipation columns located on the base, when the containing cavity is formed in the side, provided with the heat dissipation columns, of the base, the heat dissipation columns are parallel to the axis of the containing cavity, the heat dissipation columns correspond to the heat dissipation cavities one to one, the diameter sizes of the heat dissipation columns are consistent with those of the heat dissipation cavities, and the heat dissipation columns are made of the HDF high-density aviation alloy material. According to the grabbing type vacuum cup fixing system and the using method thereof, a container vacuum cup and the bottom frame which are matched with each other are arranged, heat dissipation is conducted through attaching of large-specific-heat-capacity metal of the container vacuum cup and the bottom frame, and water temperature adjustment is accelerated.