51results about How to "Improve temperature control accuracy" patented technology

The invention discloses an air conditioner temperature control method and device and an air conditioner. The method comprises the steps that the air conditioner running mode, the indoor unit air gear, the air deflector angle, the indoor unit environment detecting temperature and the set temperature are obtained; according to the preset corresponding relation of the preset air conditioner mode, the preset air gear, the preset angle and the preset compensation temperature, and the preset compensation temperature corresponding to the running mode, the indoor unit air gear and the air deflector angle is determined; compensation is conducted on the indoor unit environment detecting temperature according to the determined preset compensation temperature, and accordingly the actual indoor unit environment temperature of the air conditioner is obtained; and according to the difference value between the set temperature and the actual indoor unit environment temperature, the frequency of a compressor of the air conditioner is adjusted in an adaptive manner till the difference value meets the preset range. According to the scheme, the defects that in the prior art, accuracy is poor, reliability is low, and the user experience is poor can be overcome, and the beneficial effects that the accuracy is good, the reliability is high, and the user experience is good are achieved.

The invention relates to a constant-temperature thermal management system for a lithium-ion power battery pack. The thermal management system comprises the lithium-ion power battery pack which comprises a battery box, a plurality of single lithium batteries, a heating sheet, an electronic refrigerating sheet and a fan, a power input change-over switch which comprises two interfaces connected to an external power supply and an internal power supply, a direct current (DC)/alternating current (AC) variable-frequency inversion controller which is used for outputting power inputted by the power input change-over switch to the refrigerating sheet or the heating sheet after voltage and frequency conversion, a voltage acquisition module for acquiring the voltage of the inputted power and the output voltage of the voltage DC/AC variable-frequency inversion controller, a temperature acquisition module for acquiring the temperature of the single lithium batteries, and a master controller which is used for controlling the heating sheet or the electronic refrigerating sheet to heat or refrigerate the single lithium batteries according to the temperature of the single lithium batteries. The thermal management system disclosed by the invention is applicable to the constant-temperature control of the single lithium batteries or is capable of controlling the temperature of the single lithium batteries within a reasonable temperature range.

The invention relates to a method capable of achieving a temperature compensation function by an air conditioner temperature controller. The method comprises the following steps that the current workenvironment condition of the air conditioner temperature controller is obtained; according to the environment condition, the current temperature compensation value of the air conditioner temperature controller is determined; on the basis of the temperature compensation value, the detection temperature of the air conditioner temperature controller is corrected. The method capable of achieving the temperature compensation function by the air conditioner temperature controller is adopted, according to the environment condition, the current temperature compensation value of the air conditioner temperature controller is determined, on the basis of the temperature compensation value, the detection temperature of the air conditioner temperature controller is corrected, the user comfort is improved, the temperature control accuracy of the air conditioner temperature controller is improved, and the problem that an existing air conditioner temperature controller temperature compensation method cannot remove the temperature difference during unstable temperature rise in the air conditioner temperature controller can be solved.

The invention discloses a constant-temperature control method. A heating component is controlled to heat or stop heating by calculating a resistance value RA of the heating component under a target temperature Tt, detecting a resistance value RB of the heating component under a heating state and according to a comparison result between the RB and the RA, and the temperature of the heating component is maintained at a target temperature Tt. The invention also discloses a heating device and a storage medium. By the constant-temperature control method, the accuracy and the applicability of constant-temperature control are improved.

The invention relates to a constant temperature adsorption heat analyzer for atmosphere volatile organic compound measurement. The device comprises a high temperature tank, a low temperature tank, a trapping well, and a plurality of electromagnetic valves and circulating pipelines, wherein each of the high temperature tank and the low temperature tank is divided into an upper chamber and a lower chamber by a middle partition, an openable and closable check valve is arranged between each upper chamber and the corresponding lower chamber, and silicone oil with large specific heat capacity and high heat-conducting coefficient is arranged in each lower chamber so that an air source can drive the silicone oil to circulate among the lower chambers, the trapping well and the upper chambers so as to provide constant low temperature and constant high temperature for the trapping well, and the control is precise. By virtue of the plurality of electromagnetic valves, the air source can form different passages between the upper chambers and the lower chambers of the high temperature tank/the low temperature tank through the adjusting of the check valves, and therefore, the silicone oil can be driven to once enter the trapping well and the upper chambers from the lower chambers and the residual silicone oil in the trapping well can be driven to go back to the lower chambers through the same air source; furthermore, the silicone oil in the upper chambers can reflow to the lower chambers, so that the silicone oil can be recycled to prepare a high temperature/low temperature environment.

The invention discloses a degradable heat sealing film for compounding and a preparation method thereof. The degradable heat sealing film comprises a heat sealing layer, a middle layer and an outer layer, which are connected in sequence. The middle layer comprises the following components in parts by weight: 35 to 45 parts of PBAT, 35 to 45 parts of PLA, and 15 to 25 parts of a biodegradable nucleating agent; the heat sealing layer comprises the following components in parts by weight: 80 to 90 parts of PBAT and 10 to 20 parts of a biodegradable nucleating agent; and the outer layer comprisesthe following components in parts by weight: 80-90 parts of PBAT and 10-20 parts of a biodegradable nucleating agent. The degradable heat sealing film has the advantages that the crystallization rateof an extruded material is high, the melt strength is high, the film is not easy to break under traction, the film is easy to form, the heat sealing property is good, the printing effect is good, thehardness is moderate, certain softness and certain stiffness can be considered, and the degradable heat sealing film can be compounded with a printed film to be used as a heat-sealing layer and can beindependently made into bags.

The invention discloses a temperature rising and falling type sound velocity measuring instrument, which comprises an organic glass box, a control panel, a signal generator, an infrared heating tube,an ultrasonic wave generating transducer, an ultrasonic wave receiving transducer, a temperature sensor and an oscilloscope, wherein a sliding rod is arranged in the organic glass box; a load bearingsheet is fixedly connected to one end of the sliding rod; the bottom of the load bearing sheet is fixedly connected with the ultrasonic wave generating transducer; a grating electronic ruler is slidably connected to the other end of the sliding rod; the ultrasonic wave receiving transducer is fixedly connected to the bottom of the grating electronic ruler; a push rod is connected to one end of thebottom of the grating electronic ruler; a plurality of semiconductor refrigerating chips are arranged at the bottom in the organic glass box; the temperature sensor is fixedly arranged at the centerof a side plate at one side of the organic glass box; and the infrared heating tube, the semiconductor refrigerating chips and the temperature sensors realize information transmission with the controlpanel through wires. The temperature rising and falling type sound velocity measuring instrument in the invention has high test precision, stable test and good effect of application.

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 process and a device for jointly digesting total phosphorus and total nitrogen. The process includes adding K2S2O4 and NaOH used as oxidizing agents into to-be-tested samples; hermetically digesting the total phosphorus and the total nitrogen under the condition of the temperatures of 120-124 DEG C for 25-40 minutes. A substance quantity ratio of the K2S2O4 to the NaOH is1:1. The process and the device have the advantages that digestion principles are deeply comprehended by means of joint digestion, device properties and flow path designs are combined with one another, methods are optimized and improved, substantive tests are carried out, and the digestion efficiency can reach 90% at least as proved by total phosphorus and total nitrogen detection on the digestedwater samples after the water samples are jointly digested at one step; the integral deice is safe and reliable and is long in use cycle, and workload on maintenance workers can be relieved.

The invention discloses a control method for a refrigerating system of a high-low-temperature box. The control method for the refrigerating system of the high-low-temperature box comprises the steps that the internal temperature of the high-low-temperature box and the back temperature of an air return pipe of a compressor are detected through sensors, and current temperature differences between current temperatures and corresponding preset temperatures of the two components are calculated; a control method for electromagnetic valves of all the components is determined according to the relationship between the current temperature differences and corresponding preset temperature differences; and the on-state of the electromagnetic valves of the corresponding components in the refrigerating system is controlled according to the electromagnetic valve control method. According to the control method for the refrigerating system of the high-low-temperature box, part of the electromagnetic valves in the refrigerating system are controlled by detecting the temperatures of relevant components, so that the temperature of the high-low-temperature box is rapidly and effectively adjusted.

The invention discloses a water-cooled heater which comprises a heating sleeve body and is characterized in that a built-in cooling pipe playing a cooling action is arranged in the heating sleeve body, the heating sleeve body is sleeved outside the head of an extruder, a heating sleeve is in a ring structure, and the built-in cooling pipe is encircled in the heating sleeve body. In the invention, the heating temperature of the heater can be regulated by placing a heating pipe in the heating sleeve body, thereby improving the temperature control precision and accuracy and reducing the product waste; a locking bolt and the annular heating sleeve body are adopted to facilitate installation and disassembly; and the water-cooled heater has the advantages of compact structure and convenient use and is worthy of being popularized and used.

The invention discloses a vacuum pressurization balancing device of a centrifugal casting machine and a method thereof, and belongs to the technical field of centrifugal casting machines. The vacuum pressurization balancing device comprises a machine body, a centrifugal casting inner cylinder is arranged in the machine body, a press-fit cylinder cover is arranged at a cylinder opening in the upper portion of the centrifugal casting inner cylinder, and one end of the cylinder cover is fixed to the side end of the machine body through a coupling rod; and a temperature measurement monitoring device is arranged above the cylinder cover. According to the vacuum pressurization balancing device of the centrifugal casting machine and the method thereof, the sealing performance of the whole device after being sealed is effectively improved, the situation that the casting result is poor due to leakage is avoided, it is guaranteed that the internal temperature is always controlled within the set temperature, the temperature control accuracy is improved, the casting accuracy is improved, and the finished product quality is guaranteed; the pressure of the connecting end face is shared, the situation that the air pressure of a local connector is too high, and consequently the connector is damaged is prevented, the use stability of the connector is improved, internal air pressure balance can be effectively guaranteed, conversion can be conducted according to needs, and use convenience is improved.

The invention provides a fiber bragg grating etalon based on closed cavity metal plate temperature control and a using method. The fiber bragg grating etalon comprises a sensitive element, a leading-out optical cable and an optical fiber adapter connected with the sensitive element in sequence, a first heat preservation device connected with thesensitive element, a second heat preservation devicearranged outside the first heat preservation device, and a case arranged outside the second heat preservation device. The using method of the fiber bragg grating etalon comprises the steps of initialtemperature judgment, adjustment, internal and external temperature difference judgment, continuous internal and external layer PID temperature control and the like. The invention provides a fiber bragg grating etalon based on closed cavity metal plate temperature control and a using method of the fiber bragg grating etalon in order to solve the problem that fiber bragg grating signal detection equipment is prone to interference of the external environment and accordingly instability is caused. Thefiber bragg grating etalon can realize accurate control on the center wavelength of thefiber bragg grating, has the advantages of high stability, small size, light weight, good test coverage, flexible configuration of the number of gratings and the like, and can meet the calibration, correction and test requirements of fiber bragg grating signal detection equipment.

The invention discloses a wax liquid conveying and recycling system. The wax liquid conveying and recycling system comprises a heating stirring device, a first wax conveying pipe, a heat insulation stirring device and a second wax conveying pipe which are sequentially connected in the wax conveying direction. First heat insulation structures are arranged on the first wax conveying pipe and the second wax conveying pipe. By means of the wax liquid conveying and recycling system, the wax conveying efficiency is high, wax liquid can maintain good fluidity and a stable temperature range in the conveying process, and therefore the sealing performance of honey boluses obtained after wax dipping is improved.

The invention relates to a refrigerator temperature control method and device as well as a refrigerator, and belongs to the technical field of refrigerator temperature control. The refrigerator temperature control method comprises the following steps: obtaining a room temperature of each room of the refrigerator; determining whether or not the refrigerator needs to enter relay refrigerating control according to the room temperature, controlling the refrigerator to perform delay refrigerating control if delay refrigerating control is needed, and stopping refrigerator refrigerating after delay refrigerating control is ended. The refrigerating temperature control method facilitates guaranteeing refrigerating freshness-keeping temperature-control effect during a shut-down protection period, ofthe refrigerator.

The invention, which belongs to the technical field of temperature controllers, in particular relates to a manufacturing process of an open type temperature controller. The method comprises: step one,a fixed contact piece and a fixed contact are riveted to form a fixed contact assembly; step two, a moving contact piece and a moving contact are riveted to form a moving contact assembly; step three, the fixed contact assembly is fixed to one end of a porcelain base by a first rivet; step four, thermal processing and temperature screening are carried out on a bimetallic strip and then the processed bimetallic strip is fixed at the middle part of the porcelain base; and step five, a wiring piece and the moving contact assembly are fixed at the other end of the porcelain base by a second rivetand the moving contact is abutted against the fixed contact. On the one hand, a temperature sensing element is installed on the surface of the porcelain base and no enclosed shell is added; and the temperature sensing element is used for sensing the temperature, so that the temperature control accuracy and reaction efficiency are improved; and on the other hand, the bimetallic strip overturns todrive the moving contact at the moving contact piece and the fixed contact on the fixed contact piece to be separated or closed, thereby realizing circuit disconnection or connection. Moreover, the manufacturing process is simple; and the operation is simple and convenient. The manufacturing process is suitable for large-scale production of the enterprise.

The invention belongs to the technical field of evaporation, and relates to a heating device of an evaporation source and an evaporation device. The heating device of the evaporation source comprises a heating box body, heating pieces and a temperature control mechanism, wherein the heating box body is provided with a containing cavity used for containing the evaporation source, and at least part of the heating box body is provided with heat transfer parts, so that heat transfer occurs between the heat transfer parts and the evaporation source; the heating pieces are arranged in the heating box body and are used for generating heat radiation; and the temperature control mechanism is arranged on the heating box body, is electrically connected with the heating pieces and is used for monitoring the temperature of the evaporation source and controlling the heat generated by the heating pieces. The heating device of the evaporation source is simple in structure and convenient to use, the temperature of the evaporation source can be accurately monitored in real time, and then the evaporation quality of the evaporation source is improved.

The invention discloses an airflow distribution inducing and enhancing system suitable for an air-conditioning room which aims to solve the problems of uneven indoor thermal distribution, poor temperature control, poor thermal comfort and high air-conditioning energy consumption which are caused by imperfect airflow distribution design of the air-conditioning room in an existing building. The indoor airflow distribution inducing and enhancing system is suitable for air-conditioning room thermal environmental reforming, linked with air-conditioning equipment based on indoor thermal environmental state monitoring. The effect that the indoor airflow distribution can be effectively enhanced on the premises that the indoor wind speed is not obviously accelerated, and low fan energy consumption is used can be achieved, and the problems that the thermal distribution of the air-conditioning room is uneven, and the temperature control accuracy is poor are effectively solved; and meanwhile under the winter operating condition, through enhancement of the airflow distribution in the vertical direction, the problem of the cold lower part and hot upper part can be effectively solved, and therefore the energy consumption of an air conditioner is effectively reduced under the condition that the indoor thermal comfort is guaranteed.