10 results about "Vapor quality" patented technology

A manifold-microchannel (MMC) heat sink can comprise a plurality of microchannels and a manifold. The microchannels can be segregated into successive heat transfer stages. The manifold can include at least one connecting channel and at least one vapor permeable membrane portion. Each connecting channel can fluidically couple one of the heat transfer stages to a successive heat transfer stage. Each vapor permeable membrane portion can allow coolant in a vapor phase to pass therethrough while retaining coolant in a liquid phase within the corresponding connecting channel. A vapor quality of the coolant exiting from one of the heat transfer stages into a connecting channel can be greater than a vapor quality of the coolant entering the successive heat transfer stage from the same connecting channel.

The utility model relates to a flow calibration device of a gas flowmeter. The flow calibration device comprises a first water pump; the steam generator is connected with the first water pump and used for converting liquid output by the first water pump into steam; the water-steam separator is connected with the steam generator; the steam flow meter is connected with the water-steam separator, and the steam separated by the water-steam separator flows through the steam flow meter; the heat exchange module is connected with the steam flow meter and is used for carrying out heat exchange on the steam flowing through the steam flow meter; the measuring container is used for accommodating the liquid flowing out of the heat exchange module and weighing the liquid; the water tank is provided with an inlet and an outlet, the inlet is connected with the measuring container, the outlet is connected with the first water pump, and the water-steam separator can perform water-steam separation on steam output by the steam generator and remove liquid water carried in the steam, so that the purity of the steam is improved, and the quality of the steam entering the steam flowmeter is higher; and the flow calibration accuracy of the steam flowmeter is improved.

The utility model relates to the technical field of steam heat storage, especially to a steam heat storage self-superheating system, including steam heat accumulator, still including inlet steam pipeline, superheater import pipeline, superheater and superheater export pipeline, it is sent to steam heat accumulator in the saturated steam through inlet steam pipeline, makes steam heat accumulator store saturated steam, when required, steam heat accumulator is made saturated steam to be discharged into the superheater through superheater import pipeline, saturated steam is heated through the superheater, forms superheated steam, and then superheated steam is discharged through superheater export pipeline, which makes the steam continuously maintain saturated state during long-distance transportation, improves the steam quality of receiving point, and reduces the generation of condensed water.

The utility model relates to a sampling device suitable for water vapor quality detection of a power station boiler, which comprises a box body provided with moving wheels at the bottom, a sealed flow cell is arranged in the box body, a cooling assembly is arranged in the sealed flow cell, the sealed flow cell is connected with a sampling pipeline and a feeding pipeline, and the feeding pipeline is connected with the sampling pipeline. And the pipe head of the feeding pipeline is connected with a water pipe universal joint. The device has the function of collecting a water sample to be tested, can ensure the sealing performance of an instrument in the whole test process, can effectively connect various sampling pipe joints of different models on a boiler with a feeding pipeline of the device, and ensures that the temperature and the flow of the water sample to be tested meet the test requirements of the instrument in the test process of the instrument; therefore, the accuracy and effectiveness of field test results are ensured. In addition, the device meets the requirement for portable sampling in field inspection of the water vapor quality of the power station boiler, and the standardization and accuracy of the test are improved.

This utility model relates to the field of steam boilers, and in particular to a beverage steam boiler device. The beverage steam boiler device includes a shell, a mixing module, a steam generator, and a filtering module. The mixing module is disposed inside the shell, and the steam output end of the steam generator is connected to the filtering module for filtering steam. The mixing module includes a mixing chamber, a raw liquid chamber, and a purified water chamber. The raw liquid chamber is connected to the mixing chamber and is installed on one side of the mixing chamber. The purified water chamber is connected to the mixing chamber and is installed on the other side of the mixing chamber. The raw liquid chamber is equipped with an inclined blade, which is rotatably installed on the bottom surface of the raw liquid chamber. The filtering module is equipped with a filtering output end, which is connected to the mixing chamber for outputting filtered steam. The use of a composite filter and activated carbon can filter and adsorb impurities and odors in the steam, purify harmful gases, ensure the purity of the steam, improve the steam quality, and provide high-quality steam support for beverage production.

The invention relates to a steam generator and a control device and method, and relates to the field of kitchen ware. Comprising a water inlet, a steam outlet, a vaporizing chamber and an overheating chamber, the water inlet is communicated with the vaporizing chamber, the water inlet is downwards connected to the first end of the vaporizing chamber at the bottom, the second end of the vaporizing chamber is upwards connected with the overheating chamber, the overheating chamber is used for condensing water steam with low temperature, and the steam outlet is formed in the tail end of the overheating chamber. A first heating mechanism and a first sensor are arranged on one side of the vaporization cavity, and a second heating mechanism and a second sensor are arranged on one side of the overheating cavity. A stepped path for steam flowing is formed through the arrangement of the overheating cavity, water drops which are not completely vaporized in the vaporization process and condensate water in steam conveying can be effectively intercepted and prevented from being directly mixed into output steam or flowing back to the vaporization cavity to interfere initial vaporization, invalid loss of a water body is reduced, and the utilization rate is increased; the water content of output steam is more stable, the steam quality is improved, and the requirements of different cooking scenes are met.

The invention provides a wet steam flow testing device and method based on the pressure drop characteristic of a steam injection valve, the device comprises at least two differential pressure sensors, the front ends of the differential pressure sensors are located at the same position of an inlet of the steam injection valve, and the tail ends of the differential pressure sensors are located at pressure measuring points of an outlet of the steam injection valve. The pressure measuring points are arranged at intervals along the flow direction of an outlet medium of the steam injection valve; the mass flow velocity coefficient alpha m of the steam injection valve is obtained based on fitting; measuring the pressure difference P at two ends of the valve body, and calculating the steam mass flow rate according to a formula to obtain the wet steam flow; gm is steam mass flow rate; alpha m is a mass flow rate coefficient; rho w is vapor liquid phase density; rho s is steam gas phase density; p is pressure difference between two ends of the valve body; x is steam dryness; according to the flow measurement method, the flow measurement process is simplified based on the fitted mass flow velocity coefficient alpha m of the steam injection valve; the method adapts to wet steam two-phase flow characteristics, solves the problem that a traditional method is insufficient in measurement precision in a wet steam scene, and achieves accurate measurement and calculation of the wet steam flow of the steam injection valve.

A method for starting up vapor-recompression units or ramping up from low mass flow rates comprises: providing a vapor recompression sub-system, wherein the vapor recompression sub-system has a vapor inlet and a compressed-vapor outlet; providing a means of reducing vapor density through pressure reduction; reducing pressure within the vapor recompression sub-system to reach a sub-system pressure selected from 0.1 kPa to 1000 kPa; introducing a vapor mass flow to the vapor recompression sub-system at a restricted vapor mass flow rate; starting up the vapor recompression sub-system or ramping up from low mass flow rates while maintaining the restricted vapor mass flow rate for a time period; and then, following the time period, introducing additional vapor mass flow to the vapor recompression sub-system to reach a normal vapor mass flow rate. The restricted vapor mass flow rate is from 0.1% to 90% of the normal vapor mass flow rate.

This utility model discloses a fully premixed water-cooled mixed-flow gas-fired steam generator, comprising: an inlet chamber, a combustion chamber, a superheater, an evaporation chamber, and an economizer. The inlet end of the combustion chamber is connected to the outlet end of the inlet chamber. A water jacket is provided around the outer perimeter of the inner wall of the combustion chamber. Several first heat exchange tubes are provided in the combustion chamber. The inlet end of the superheater is connected to the outlet end of the combustion chamber. Heating coils are provided on the inner wall of the superheater. The inlet end of the evaporation chamber is connected to the outlet end of the superheater. An upper collection chamber and a lower collection chamber are respectively provided at the top and bottom of the evaporation chamber. Several second heat exchange tubes are provided in the evaporation chamber. The inlet end of the economizer is connected to the outlet end of the evaporation chamber. A water inlet tank and a water outlet tank are respectively provided on both sides of the economizer. Several third heat exchange tubes are provided inside the economizer. This utility model has high heat exchange efficiency, good steam quality, and fast response speed, and can efficiently and stably produce high-quality steam to meet the needs of various industrial production, while reducing energy consumption and production costs.

The present application relates to hydrogen pipeline simulation technical field, disclose a kind of hydrogen pipeline phase change simulation method, comprising: by geometric model, the hydrogen phase change physical model of hydrogen pipeline is constructed, hydrogen phase change physical model includes thermodynamic equilibrium model and wall boiling model;The property parameter model of liquid hydrogen and gaseous hydrogen is constructed;The boundary condition and initial value condition of hydrogen pipeline are constructed;According to hydrogen phase change physical model, property parameter model and boundary condition and initial value condition, when the liquid phase and steam phase of hydrogen in thermodynamic equilibrium model are in thermodynamic equilibrium, steam dryness and steam volume fraction are calculated;According to steam volume fraction, the surface heat flux of hydrogen pipeline is calculated by wall boiling model;According to surface heat flux and property parameter model, steam mass generation rate is calculated, and hydrogen pipeline phase change simulation is completed, the present application solves the technical problems that existing simulation result precision is lower, cannot accurately reflect the phase change rule in actual hydrogen pipeline.