7 results about "Gas thermometer" patented technology

A method for measuring gas temperature and flow velocity through sound waves comprises a sound wave transmitting end, a sound wave receiving end, a signal processing end, a central calculation end and a visualization module, the sound wave transmitting end is used for transmitting sound wave signals and capturing echo signals, and the sound wave receiving end is used for receiving the sound wave signals and transmitting the echo signals; the signal processing end is used for preprocessing sound wave signals and calculating propagation time of sound waves, the central calculation end is used for calculating gas temperature and gas flow velocity, and the visual module is used for displaying a real-time change curve of the gas temperature and the gas flow velocity. The invention provides an improved acoustic multi-path flow field real-time separation algorithm for signal processing, provides an improved multi-path flow field coupling acoustic temperature measurement algorithm for gas temperature calculation, provides an improved multi-path temperature flow coupling dynamic speed measurement algorithm for gas flow velocity calculation, and provides a better scheme for a method for measuring the gas temperature and flow velocity through sound waves.

The invention relates to a capacitor unit (12) comprising several capacitor elements (16) and a gas thermometer (22), wherein the capacitor elements (16) are arranged side by side of each other inside an enclosure (14), wherein the gas thermometer (22) is configured as constant volume thermometer and comprises a sealed tube (24) and a pressure sensor (26) arranged at a first end (28) of the tube (24) for detecting pressure changes of a gas inside the tube (24), and wherein the tube (24) is arranged such that at least some parts of the tube (24) are arranged inside the enclosure (14). Furthermore, the invention relates to a capacitor bank (10) comprising multiple capacitor units (12), wherein at least one capacitor unit (12) is configured as described above. Furthermore, the invention relates to the use of a gas thermometer (22) configured as constant volume thermometer for determining an occurrence of a hot spot inside an enclosure (14) of a capacitor unit (12).

The invention provides a control method, device and system for a compressor of a temperature control device, the compressor is arranged on a communicating pipeline, the communicating pipeline comprises a gas communicating pipeline and a liquid communicating pipeline, and the control method comprises the steps that under the condition that the temperature control device is in a refrigeration mode, the environment temperature, the outlet end liquid temperature and the inlet end gas temperature are obtained; the absolute value of the difference value between the inlet end gas temperature and the outlet end liquid temperature is calculated to obtain a first difference absolute value, the absolute value of the difference value between the environment temperature and the outlet end liquid temperature is calculated to obtain a second difference absolute value, and the absolute value of the difference value between the environment temperature and the inlet end gas temperature is calculated to obtain a third difference absolute value; and whether the liquid flow in the liquid communicating pipeline is smaller than the preset flow or not is determined according to the absolute value of the difference value, and the compressor is controlled to operate under the condition that the liquid flow is smaller than the preset flow. The problem that in the prior art, when a liquid flow detection device fails, the liquid flow cannot be detected in time is solved.

The invention relates to an electrical apparatus (10) comprising an electrically isolated enclosure and at least one electrical component (12) inside the enclosure, wherein the apparatus (10) comprises a gas thermometer (16) for determining a temperature inside the enclosure, wherein the gas thermometer (16) is configured as constant volume thermometer and comprises a sealed tube (18) and a pressure sensor (20) arranged at a first end of the tube (18) for detecting pressure changes of a gas inside the tube (18), and wherein the tube (18) is arranged such that at least the first end is outside the enclosure and further parts of the tube (18) are at least partly arranged in-side the enclosure. Furthermore, the invention relates to a method for determining an occurrence of a hot spot inside an electrically isolated enclosure of the above electrical apparatus (10), comprising the steps of - receiving pressure data from the pressure sensor (20) of the gas thermometer (16), and - determining the occurrence of a hot spot inside the enclosure based on the received pressure data. Furthermore, the invention relates to the use of a gas thermometer (16) configured as constant volume thermometer for determining an occurrence of a hot spot inside an electrically isolated enclosure of an electrical apparatus (10).

The invention discloses a measuring instrument for measuring temperature, which relates to the field of temperature measuring instruments and comprises a support frame, a bearing mechanism is movably mounted at the bottom end of the support frame, a moving mechanism is mounted at the top of the support frame, and a deflection mechanism is mounted on the outer wall of the upper part of the support frame. And a lifting mechanism is mounted at the output end of the deflection mechanism. The temperature measuring mechanism integrates three core elements, namely a platinum resistance thermometer, a gas thermometer and an infrared thermometer, can respectively cope with solid contact temperature measurement, gas medium temperature measurement and non-contact temperature measurement, breaks through the scene limitation of a traditional single temperature measuring instrument, and can flexibly switch temperature measuring modes according to the state of a measured object, so that the temperature measuring efficiency is improved. And meanwhile, four electric cylinders II are independently driven by a controller, so that the lifting precise control of a platinum resistance thermometer, a gas thermometer and an infrared thermometer and the data optimization of a signal processor can be respectively controlled, the temperature measurement flexibility and precision are considered, and the device is suitable for diversified industrial or laboratory temperature measurement scenes.

The utility model discloses a water-steam separator testing device of a steam box, belongs to the technical field of steam boxes, and solves the problems that an existing device cannot eliminate moisture entrained in steam, errors are brought to test calculation, the accuracy of a thermal efficiency calculation result is influenced, and the judgment of a final energy efficiency grade is inaccurate. Comprising a gas system, a water inlet system, a tested steam box and a water vapor separation system, the gas system comprises a gas valve, a gas pressure regulator, a gas flowmeter, a gas thermometer and a gas pressure gauge, and the water inlet system comprises a water inlet thermometer, a water valve, a booster pump, a water container and an electronic scale. Through the arrangement of the gas system, the water inlet system, the tested steam box and the water-vapor separation system, condensate water in the steam box is drained by opening a valve of a condensate water outlet, water discharged from the condensate water outlet is weighed by an electronic scale, and the weight of the water is recorded, so that the weight of water in water vapor is conveniently recorded, and the purpose of conveniently separating the water from the steam is achieved.

The present invention relates to a system and method for recovering sensible heat from calcium carbide for power generation. The device comprises: a spray granulation unit for granulating molten calcium carbide, a cooling and heat-exchanging material receiving unit for cooling calcium carbide particles and heating CO2 gas, a power generation unit for CO2 gas power generation, and a gas circulation unit for controlling the temperature and pressure of CO2 circulating gas. The spray granulation unit comprises a calcium carbide discharge port and a high-pressure spraying device in sequence; the cooling and heat-exchanging material receiving unit comprises a cooling material receiving bin, a cooling rotary kiln, a large gear ring, a transmission base, a closed-loop material receiving device, and a material cart in sequence; the power generation unit comprises a compressor, a pressure gauge, a gas thermometer, a gas heating device, a turbine, a generator, and a control computer in sequence; the gas circulation unit comprises a gas valve, a waste heat recovery device, a sealed gas storage tank, and a gas pressure reducing device in sequence. The present invention provides a device for recovering sensible heat from calcium carbide for power generation, which has the advantages of stable product quality, low operating cost, compact structure, and high power generation efficiency.