66results about How to "Stable temperature environment" patented technology

The invention discloses a field cultivation method for toadstools. The method comprises the steps of flat tent construction, ridging and sowing, interplanting, irrigation and permeation, field management and harvesting. According to the step of field management, when toadstool primordial grow on ridge faces in spring in the second year and the temperature of the ridge faces reaches 10 DEG C, a second layer of sunshade net is pulled up to be 45-55 cm above the ridge faces; when the temperature is increased to 15-20 DEG C, the second layer of sunshade net is gradually pulled up to be 195-205 cm above the ridge faces, and in the process, a distance is kept between the second layer of sunshade net and a black sunshade net arranged at the top end. According to the step of harvesting, when growth of toadstool entities is finished, the toadstools are harvested according to specifications. The cultivation method can effectively control the toadstool product quality, and improve the toadstool yield.

The invention provides a heat-recovery thermostatic bath circulating device. The heat-recovery thermostatic bath circulating device is provided with an output end and an input end which are respectively connected with a user side and is characterized by comprising a cold solution box, a hot solution box, a constant-temperature solution box and a compressor, wherein the cold solution box is provided with a refrigerating coil pipe I and a temperature sensor I; the hot solution box is provided with a heating coil pipe and a temperature sensor II; the constant-temperature solution box is provided with a heating device and a temperature sensor III; the compressor, the heating coil pipe and the refrigerating coil pipe I are sequentially communicated with one another to form a refrigerant circulating loop I; the cold solution box and the hot solution box are communicated with the constant-temperature solution box through a fluid adjusting device I and a fluid adjusting device II, respectively. The heat-recovery thermostatic bath circulating device recovers condensation heat generated in the refrigerating process and utilizes the recovered condensation heat to adjust the temperature of a working solution of the device, so that the integral efficiency of the device can be improved. The invention also provides a constant temperature method of the heat-recovery thermostatic bath circulating device. The constant temperature method can be used for recovering condensation heat and has the advantages that the temperature control precision is high, the solution temperature is uniform, and the control response speed is high.

The invention relates to a furnace body for a thermal analysis instrument. The furnace body for the thermal analysis instrument comprises a hollow furnace body main body, more than two heat-conductingcolumns positioned below the furnace body main body as well as two groups or more of heaters wound on the outer surfaces of the heat-conducting columns; the section of the furnace body main body is dumbbell-shaped; two symmetrical sample cavities are formed in the furnace body main body; a hole is formed in the center and serves as a ventilation channel for gas to flow in the cavity; the plurality of heat-conducting columns are arranged below the two symmetrical sample cavities of the furnace body main body and are distributed in an axially symmetrical manner; the heaters comprise heating wires and are symmetrically wound on the heat-conducting columns. According to the furnace body for the thermal analysis instrument, the furnace body has a compact structure, the sample is heated symmetrically, the heating rate can be increased and high-power heating can be realized.

The invention relates to a temperature fusion and control system of an isolated organ perfusion instrument. The system comprises a main control unit, a four-channel temperature acquisition unit, a compressor unit, a ventilation valve unit and a constant temperature control unit, wherein the four-channel temperature acquisition unit, the compressor unit and the ventilation valve unit are electrically connected with the main control unit; and the constant temperature control unit comprises a temperature fusion subunit based on improved Bayesian estimation and a temperature control subunit based on a fuzzy PID (Proportion Integration Differentiation) controller. By adopting the data fusion subunit based on improved Bayesian estimation, possible sensor failure or false data caused by environmental interference is overcome; four paths of measured data are fused into one path of data, and the fuzzy PID control subunit is adopted to implement high-precision constant temperature control. The system not only can effectively improve the temperature control precision of the isolated organ perfusion instrument, but also can reduce the risk of measurement failure caused by external interference and improve the stability of the instrument, and thus has potential economical value.