62results about "Heat insulating devices" patented technology

The invention relates to the technical field of reactor thermal hydraulics and safety, in particular to a long electric heating plate heat insulation structure and a heat transfer simulation experiment device with the long electric heating plate heat insulation structure. The long electric heating plate heat insulation structure comprises a heat insulation base, a heating plate and a cementing layer. The heat insulation base is configured to be a ceramic resin plate, and a sinking groove is formed in one plate face of the heat insulation base. The heated plate is arranged in the sinking groove so that the plate face of the heated plate can be flush with the plate face of the heat insulation base, and the surface, corresponding to the groove wall and the groove bottom of the sinking groove, of the heated plate is provided with a micropore aluminum oxide ceramic layer which is subjected to nanocrystallization treatment through an active coupling agent. And the cementing layer is arranged between the heated plate and the heat insulation base in a high-temperature vacuum pressure environment. According to the heat transfer simulation experiment device, it can be ensured that the heated plate has good single-side heat dissipation performance under the temperature working condition that the surface of the dispersion type fuel element is blistered, the experiment safety during operation of the heat transfer simulation experiment device can be ensured, and the accuracy of a measurement result in a simulation experiment can be ensured.

The present invention discloses a high and low temperature performance test box based on a mixed refrigerant and a control method, including a box body, a refrigeration chamber, a heating chamber, an electric refrigeration device, an electric heating device, and a support roller. The upper part of the box body is provided with a refrigeration chamber that penetrates forward, and the bottom is provided with a heating chamber that penetrates forward. The refrigeration chamber is provided with an electric refrigeration device, and the electric refrigeration device uses a mixed refrigerant for refrigeration, and the heating chamber is provided with an electric heating device. During the temperature test of the present invention, the heat transfer oil in the heat preservation tank is refluxed into the heat dissipation pipe by controlling the lifting mechanism to rise, and then the electric control stop valve is controlled to be cut off, and the electric heating device and the electric refrigeration device are controlled to be powered on to work. At this time, the heat transfer oil in the heat dissipation pipe can absorb the heat generated by the electric heating device, but the heat will not be dissipated to the outside to cause waste, but will be retained in the heating chamber to heat the object being tested.

The invention relates to the technical field of reactor thermal hydraulic power and safety, in particular to a heat transfer simulation experiment device under the surface foaming condition of a dispersion type fuel element. The device comprises a heated plate, a heat insulation base, a cover body, a medium leading-in piece, a medium leading-out piece and a conductive piece, the heated plate is provided with a vacuum bubble-shaped part; the heated plate is connected to the heat insulation base, an elastic sealing cavity is formed in the heat insulation base, the elastic sealing cavity is filled with heat insulation powder, and a temperature measuring hole is further formed in the heat insulation base; the cover body is provided with a circulation groove and connected with the heat insulation base. The medium leading-in piece is communicated with one end of the narrow slit channel; the medium leading-out piece is communicated with the other end of the narrow slit channel; the two conductive pieces are connected to the two ends of the heated plate respectively, and the vacuum bubble-shaped part is located between the two conductive pieces. According to the application, the structural state, thermal boundary and coolant flow channel geometric condition simulation of the dispersion type fuel element during bubbling can be realized, and the measurement of flow heat transfer characteristics, vapor-liquid two-phase flow field and the like near a vacuum bubble part can be carried out.

The invention relates to the technical field of biological medicine industry, and provides a multi-stage vacuum heat-insulation high-temperature experimental facility which comprises a body, the body comprises an external box body and an inner container fixed in the box body, a flow guide cover is fixedly installed in the inner container, a detachable material plate is installed in the flow guide cover in a clamped mode, and the material plate is connected with the box body. Steps which are diagonally arranged are formed at the upper end and the lower end of the inner container, an air channel is formed between the inner container and the flow guide cover, an air cavity is formed between the inner side of each step and the flow guide cover, and a movable push plate is arranged in each air cavity; it can be understood that the flow guide cover is arranged in the inner container, the air channel and the air cavity are formed between the flow guide cover and the inner container, airflow circulation is driven by means of movement of the push plate in the air cavity, and materials are evenly heated on the material plate; meanwhile, the material plate is clamped in the flow guide cover through the elastic piece and can be easily installed and taken out through operation of a hand lever, direct contact with the hand is avoided, and using convenience and safety are improved.

A method and device are provided for performing temperature-controlled transport of relatively small temperature-sensitive payloads. The vacuum shipper can include a vacuum vessel and a PCM pack having an outer wall that roughly conforms to the vacuum vessel. The PCM pack includes a payload cavity and can be preconditioned at an effective charge temperature for an effective charge time. The temperature-sensitive payload is placed into the payload cavity. An insulating stopper is forced into the mouth of the vacuum vessel. The vacuum shipper can then be transported by commercial express cargo to its destination within the effective endurance time.

The present invention provides an electric furnace device and a method for using a component fire protection design and fire supervision, S1. Determine the test scene: S2. The device is in place on site: S3. The test sample is installed: S3A, the installation steps when a cubic sample is used: S3B, the installation steps when a cylindrical sample is used: S4. Back-fire surface insulation selection: S4A, when the test sample is a cubic sample or a cylindrical sample, the insulation cover installation steps; S4B, do not use the insulation cover; S5. Furnace temperature setting preparation: S6. Control mode selection: Among them, S6A, the control test process using the control unit: S6B, the control test process using the mobile terminal: S7. The whole test process is completed: the electric furnace device and the mobile terminal are stored and saved. The present invention can simulate the real boundary relationship between the protected material and the insulation material, provide a simple and reliable equivalent temperature rise curve setting method, can quickly form a test report, and greatly improve the efficiency of supervision and law enforcement.

Thermal control devices and methods to provide improved control, speed and efficiency in temperature cycling are provided herein. Such thermal control device and methods can include one or more active elements, such a thermoelectric cooler device, that is controlled by an algorithm that regulates a temperature distribution of an adjacent reaction-vessel according to a temperature distribution command trajectory and estimated reaction-vessel temperature distribution. Some embodiments include two active elements that are bilaterally applied to opposing sides of the reaction-vessel. In some embodiments, the estimated reaction-vessel temperature is determined based on a state of power electronics of the element and a temperature output of one or more sensors of a portion of the element and / or an ambient environment of the reaction-vessel. Methods of calibration of such systems utilizing a thermal calibrator as a proxy for the reaction-vessel are also provided herein.

The utility model provides a laboratory glass bottle washing device which comprises a bottle washing support, a glass washing bottle is placed on the bottle washing support, a sealing rubber plug is installed at the position of a bottle opening of the glass washing bottle, a first hole groove, a second hole groove and a third hole groove are independently formed in the sealing rubber plug, and an exhaust pipe penetrating up and down is installed in the first hole groove. A vertically-through gas production pipe is installed in the second hole groove, and a vertically-through liquid conveying pipe is installed in the third hole groove. The upper end of the infusion tube is connected with a glass water flow nozzle through a plastic hose, and the lower end of the infusion tube is connected with a water conveying rubber tube; and the bottleneck of the glass washing bottle is also provided with an anti-skidding heat-insulating protective sleeve. According to the laboratory glass bottle washing device, exhaust of the exhaust pipe can be controlled manually, liquid outflow is stopped immediately, no liquid leakage phenomenon exists, glass water flow nozzles with different calibers can be replaced according to actual application, the water flow thickness is adjusted, and the glass bottle washing effect is improved. The technical problems that in the prior art, various experiment scenes cannot be met, and liquid discharging cannot be stopped immediately are solved.

The invention relates to a rapid temperature change technology in a low-pressure environment, in particular to a low-pressure rapid temperature change function device. The device comprises a pressure-bearing box body and a heat preservation jacket, the pressure-bearing box body and the heat preservation jacket are independent individuals, the heat preservation jacket is arranged outside the pressure-bearing box body in a covering mode, and the device is provided with a liquid nitrogen device, a liquid nitrogen adjusting valve, a one-way valve, a heat preservation jacket inner circulation fan and a pressure-bearing box body inner stirring fan. In addition, the pressure-bearing box body is provided with a vacuum valve and a vacuum pump, and internal low-pressure rapid refrigeration and heating are achieved through rapid gas rapid refrigeration and heating outside the heat preservation jacket. According to the invention, the effect of rapidly realizing temperature change in a low-pressure environment is achieved, and the stability and reliability of the system are ensured at the same time.

The present invention provides a method and apparatus for performing temperature-controlled shipping of smaller temperature-sensitive payloads. The vacuum transporter may include a vacuum vessel and a PCM pack having an outer wall generally shaped to fit the vacuum vessel. The PCM package includes a payload cavity and may be pre-adjusted at an effective charge temperature for an effective charge time. A temperature sensitive payload is placed in the payload chamber. And the heat insulation plug is pressed into the opening part of the vacuum container. The vacuum transporter may then be transported to its destination by commercial delivery for an effective endurance time.

A tissue sample that has been removed from a subject can be evaluated. A transporter system for carrying a tissue sample includes a transport container, a fixative in the transport container, and a cooling device that reduces and / or maintains the temperature of the fixative to perform a pre-soaking process. A portable transporter system adapted to carry a tissue sample contacting a fixative, can include: a transport container including: a holding chamber; and a fixative; and a container lid including: a cassette holder operable to be coupled to the standard histology cassette and including a first seal; and a cassette receiver operable to be releasably coupled to said transport container and including a second seal, where the cassette holder and cassette receiver are operable to be attachably coupled to one another upon insertion of a standard histology cassette coupled to the cassette holder into the cassette receiver.

The invention relates to the technical field of reactor thermal hydraulic power and safety, in particular to a heated plate and a heat transfer simulation experiment device with the same. The heated plate comprises a bubbling plate, a heating plate and an insulating layer, a groove is formed in the foaming plate through a casting process; the heating plates and the foaming plates are arranged in parallel at intervals; the insulating layer is located between the foaming plate and the heating plate, the insulating layer is connected with the heating plate, and the insulating layer and the foaming plate are connected through vacuum diffusion welding so that a vacuum bubble-shaped part can be defined by the insulating layer and the groove in the foaming plate. According to the invention, the thermal boundary of the dispersion type fuel element during bubbling can be accurately simulated, the flow heat transfer characteristic near the vacuum bubble part can be simulated and measured, the reduction degree of the measurement result is high, and the reliability is good.

The application relates to the technical field of reactor thermal hydraulic and safety, in particular to a long electric heating plate heat insulation structure and a heat transfer simulation experiment device with the same. The long electric heating plate heat insulation structure comprises a heat insulation base, a heating plate and a glue layer; the heat insulation base is configured as a ceramicized resin plate, one plate surface of the heat insulation base is provided with a sink; the heating plate is arranged in the sink so that the plate surface of the heating plate is flush with the plate surface of the heat insulation base, the surface of the heating plate corresponding to the sink wall and the sink bottom is provided with a microporous alumina ceramic layer which is nano-treated by using an active coupling agent; and the glue layer is arranged between the heating plate and the heat insulation base under a high-temperature vacuum pressure environment. The application can ensure that the heating plate has good single-side heat dissipation performance under the temperature condition of bubble formation on the surface of a dispersed fuel element, can guarantee the test safety of the heat transfer simulation experiment device during operation, and can ensure the accuracy of the measurement result in the simulation test.

The invention discloses a temperature control device and method for an ice block low-temperature mechanical test, belongs to the technical field of low-temperature mechanical tests, and provides the following scheme that the temperature control device comprises a temperature control mechanism, a heat preservation mechanism is arranged on the temperature control mechanism, the temperature control mechanism comprises a base and a cooling assembly, and two bottom frames are fixedly connected to the upper portion of the base; fixing frames are fixedly connected to the upper portion of the bottom frame, a test cavity is fixedly connected between the two fixing frames, the two sides of the test cavity are connected with refrigeration equipment through hoses, the refrigeration equipment is installed on a base through a support, and the two sides of the test cavity are connected with the two ends of a cooling assembly. The heat preservation cavity descends, the upper sealing assembly makes contact with the bottom frame to generate thrust, at the moment, the sealing air bags expand and are tightly attached, and therefore the test cavity can be kept closed, low-temperature overflow is reduced, the specified detection temperature can be quickly reached, and the detection efficiency is improved.

The purpose of the present invention is to provide a temperature control device in which the occurrence of condensation on the upper surface of a cover section is suppressed. To this end, the present invention is a temperature control device comprising a heat conduction section, a cooling section for cooling the heat conduction section, and a cover section that covers the area above the heat conduction section and has openings via which containers are inserted and removed. An air layer is formed between the heat conduction section and the cover section. When such a temperature control device is used in a genetic testing device, it is possible to maintain high testing precision because condensation is unlikely to occur on the upper surface of the cover section of the temperature control device and contamination of samples due to the scattering of condensation is suppressed.

The application relates to the technical field of reactor thermal hydraulic and safety, in particular to a heated plate and a heat transfer simulation experiment device with the same. The heated plate comprises a bubbling plate, a heating plate and an insulation layer; the bubbling plate is formed with grooves through a cast-pressing process; the heating plate is arranged in parallel and at intervals with the bubbling plate; the insulation layer is located between the bubbling plate and the heating plate, the insulation layer is connected with the heating plate, and the insulation layer is connected with the bubbling plate through vacuum diffusion welding to enclose the grooves on the bubbling plate into vacuum bubble-shaped parts. The application can accurately simulate the thermal power boundary when the dispersion type fuel element bubbles, realize the simulation and measurement of the flow heat transfer characteristics near the vacuum bubble-shaped parts, and the measurement result has high reduction degree and good reliability.

The present invention discloses a high and low temperature performance test chamber based on a mixed refrigerant and a control method thereof, including a box body, a refrigeration chamber, a heating chamber, an electric refrigeration device, an electric heating device, and a support roller. A refrigeration chamber penetrating forward is provided at the upper part of the box body, and a heating chamber penetrating forward is provided at the bottom. An electric refrigeration device is installed in the refrigeration chamber, and the electric refrigeration device uses a mixed refrigerant for refrigeration. An electric heating device is installed in the heating chamber. When the temperature is tested in the present invention, the heat-conducting oil in the heat preservation tank is made to flow back into the heat dissipation pipe by controlling the lifting mechanism to rise, and then the electric control stop valve is controlled to cut off, and the electric heating device and the electric refrigeration device are controlled to be powered on for operation. At this time, the heat-conducting oil in the heat dissipation pipe can absorb the heat generated by the electric heating device, but the heat will not be dissipated to the outside to cause waste, but is retained in the heating chamber to heat the object to be tested.

A microfluidic chip assembly for rapidly performing digital polymerase chain reaction (PCR) and use thereof are provided. The microfluidic chip assembly includes at least one microfluidic chip, a heat sink arranged below the microfluidic chip, a heater arranged above the microfluidic chip, a semiconductor cooler arranged between the heat sink and the microfluidic chip, and a heat-conducting plate arranged above the semiconductor cooler. A thin film layer is bonded at the bottom of the microfluidic chip, and the thin film layer abuts against the heat-conducting plate.

The embodiment of the invention provides heating equipment. The heating equipment comprises a shell (1); the heating assembly (2) is supported by the shell (1), a cavity surrounding the experiment container is formed by the heating assembly (2), and the first surface of the heating assembly (2) is matched with the outer surface of the experiment container; wherein the experiment container is placed in a cavity formed by the heating assembly (2), the heating assembly (2) is opened by the experiment container, the heating assembly (2) deforms, and the formed cavity is enlarged and is in press fit with the experiment container; the heating assembly (2) is recovered after releasing the experiment container, and the formed cavity becomes smaller. According to the embodiment of the invention, the heating assembly forms the cavity surrounding the experimental container, so that the experimental container can be heated when the experimental container is clamped, the structure is compact, the heating assembly clamps or releases the experimental container through the deformation of the heating assembly, the heating assembly can adapt to repeated loading and disassembly, and other operations in the experimental container cannot be influenced.

Thermal control devices and methods to provide improved control, speed and efficiency in temperature cycling are provided herein. Such thermal control device and methods can include one or more active elements, such a thermoelectric cooler device, that is controlled by an algorithm that regulates a temperature distribution of an adjacent reaction-vessel according to a temperature distribution command trajectory and estimated reaction-vessel temperature distribution. Some embodiments include two active elements that are bilaterally applied to opposing sides of the reaction-vessel. In some embodiments, the estimated reaction-vessel temperature is determined based on a state of power electronics of the element and a temperature output of one or more sensors of a portion of the element and / or an ambient environment of the reaction-vessel. Methods of calibration of such systems utilizing a thermal calibrator as a proxy for the reaction-vessel are also provided herein.

A tissue sample that has been removed from a subject can be properly fixed for evaluation using the disclosed transporter assembly for carrying a tissue sample and method for fixing an unfixed tissue sample. In one embodiment, the disclosed assembly includes a transport container, a fixative in the transport container, and a cooling device that reduces and / or maintains the temperature of the fixative to perform a pre-soaking process at a temperature of less than about 7° C. The pre-soaking process can, for example, be performed during sample transport or during extended periods of storage, such as over a weekend.

An object of the invention is to provide a temperature control device that prevents occurrence of dew condensation on an upper surface of a cover portion. For this purpose, the invention provides a temperature control device including: a thermally conductive portion; a cooling part configured to cool the thermally conductive portion; and a cover portion having an opening through which a container is inserted and removed while covering an upper side of the thermally conductive portion, in which an air layer is formed between the thermally conductive portion and the cover portion. When such a temperature control device is used for a genetic testing device, the dew condensation is unlikely to occur on an upper surface of the cover portion of the temperature control device, and contamination of a sample due to splashing of dew condensation water is prevented. Therefore, it is possible to maintain high testing accuracy.

A system is provided for transporting, handling and monitoring samples in a temperature-controlled storage environment. The system includes a handheld carrier configured to transfer samples to and from a temperature-controlled storage station and a temperature-controlled container for receiving and housing one or more carriers. The carrier includes an integrated sample identification and temperature sensing capability configured to monitor a thermal history of one or more samples during transport, handling and storage including as the samples are conveyed between the temperature-controlled storage environment and the temperature- controlled container. That is, the carrier is adapted to be held in the hand during use. A carrier for conveying and monitoring samples during transport, handling and storage is also provided.

This application relates to the fields of reactor thermal-hydraulic and safety technology, specifically to a heat transfer simulation experimental device under bubbling conditions on the surface of a dispersed fuel element. It includes a heated plate, an insulating base, a cover, a medium inlet, a medium outlet, and conductive components. The heated plate has a vacuum bubble-like section. The heated plate is connected to the insulating base, which contains an elastic sealing cavity filled with insulating powder. A temperature measuring hole is also provided on the insulating base. The cover has a flow groove and is connected to the insulating base. The medium inlet is connected to one end of a narrow slit channel; the medium outlet is connected to the other end of the narrow slit channel; two conductive components are respectively connected to both ends of the heated plate, and the vacuum bubble-like section is located between the two conductive components. This application can simulate the structural state, thermal boundary, and coolant flow channel geometry of a dispersed fuel element during bubbling, and can measure the flow heat transfer characteristics and vapor-liquid two-phase flow field near the vacuum bubble-like section.

Thermal control devices and methods to provide improved control, speed and efficiency in temperature cycling are provided herein. Such thermal control device and methods can include one or more active elements, such a thermoelectric cooler device, that is controlled by an algorithm that regulates a temperature distribution of an adjacent reaction-vessel according to a temperature distribution command trajectory and estimated reaction-vessel temperature distribution. Some embodiments include two active elements that are bilaterally applied to opposing sides of the reaction-vessel. In some embodiments, the estimated reaction-vessel temperature is determined based on a state of power electronics of the element and a temperature output of one or more sensors of a portion of the element and / or an ambient environment of the reaction-vessel. Methods of calibration of such systems utilizing a thermal calibrator as a proxy for the reaction-vessel are also provided herein.

Methods and devices are provided for executing temperature-controlled shipment of relatively small temperature-sensitive payloads. A vacuum shipper may include a vacuum container and a PCM pack with an outer wall broadly form fitting to the vacuum container. The PCM pack includes a payload cavity and may be pre-conditioned at an effective charging temperature for an effective charging time. A temperature-sensitive payload is placed in the payload cavity. An insulated stopper is pressed into a mouth of the vacuum container. The vacuum shipper may then be conveyed by commercial express freight to its destination within an effective endurance time.

Provided in embodiments of the present application is a heating device, which includes a housing (1); a heating assembly (2) which is supported by the housing (1); and at least one temperature sensor (3) which is arranged with the heating assembly (2); where the heating assembly (2) forms a cavity surrounding an experimental container, and a first surface of the heating assembly is matched with an outer surface of the experimental container, and the heating assembly is configured to clamp and release the experimental container by deformation. According to the embodiments of the present application, the heating assembly forms a cavity surrounding the experimental container, so that the experimental container can be heated when the experimental container is clamped; the heating assembly is integrated with the temperature sensor(s), such that the heating temperature can be monitored and adjusted in real time; the structure is compact, and the heating assembly clamps or releases the experimental container through its own deformation, which can adapt to repeated loading and disassembly, and will not affect other operations in the experimental container.

A polymerase chain reaction device of the present invention comprises an upper heating assembly installed on multiple tubes mounted on a heating block to heat the upper portions of the tubes. The upper heating assembly comprises: multiple caps fitted onto the inlets of the tubes; multiple heat conduction rods extending through the caps and having lower ends positioned inside the tubes; a heat conduction plate installed on the multiple heat conduction rods and in contact with the upper ends of the multiple heat conduction rods to transfer heat to the heat conduction rods; an electric heater installed to be in contact with the top surface of the heat conduction plate to heat the heat conduction plate; and an insulation cover having the heat conduction plate and the electric heater installed therein, the insulation cover having an open lower portion through which the bottom surface of the heat conduction plate is exposed to the outside.