415 results about "Hygrometer" patented technology

A remote humidity monitor system for detecting a targeted object utilizes a humidity sensor to detect humidity and sends a result to a reader via the wireless communication device; a server can execute monitor management. The humidity sensor can be a mass hygrometer, an optical condensation dew-point hygrometer, a psychrometer (wet-and-dry bulb thermometer), a hair hygrometer, an electrolysis humidity sensor, a lithium chloride humidity sensor, an aluminum oxide humidity sensor, a high polymer humidity sensor, or an infrared hygrometer.

The invention discloses a device for testing characteristic curves and permeability coefficients of unsaturated coarse particle soil and water. A reversed filter is arranged at the bottom of a cylindrical rigid permeation column; six layers of compacted soil samples are arranged at the upper part of the reversed filter; a TDR (test data report) sensor, a tensiometer or a humidometer are buried at the same height on the same layer; pore pressure gauges are buried in the first layer and the sixth layer; the TDR sensor, and the tensiometer or the humidometer form 90 degrees; each pore pressure gauges and the tensiometer or the humidometer form 90 degrees; a waterhead stabilizer is externally connected with a water storage container and a water tank for providing a reference liquid level; the waterhead stabilizer is accessed into the reversed filter via a drainage valve; a top plate of the cylindrical rigid permeation column is connected with the drainage valve. Saturated ermeability coefficients of coarse particles can be obtained through the pore pressure gauges and the waterhead stabilizer after the sample is saturated; the change processes of of matric suctions and moisture contents of a soil body in each layer at different moments along with the time can be obtained through the corresponding tensiometer or the corresponding humidometer and the corresponding TDR sensor at the saturation, drainage and evaporation stages at the same time. Thus, mechanical parameters of the unsaturated coarse particle soil and water are obtained.

A preparation device of low-concentration gas with certain humidity consists of a capillary tube and a tee or two-way air-tight joint which are communicated with a carrier gas cylinder, a mass flow controller, a heating diffusion bottle, a humidity generating bottle and a gas mixing tank. The diffusion bottle is arranged in a heater, is communicated with the capillary tube by a capillary needle tube, and a diffusion gas control section is arranged with corresponding numbers and parameters according to the varieties and numbers of the prepared gas components. The gas mixing tank is provided with a hygrometer for real-time determination of the humidity of the prepared gas. The device of the invention adopts a diffusion-dilution type dynamic gas distribution method, can prepare the low-concentration gas with certain humidity, and is characterized by low cost, simple operation, low gas consumption, stable gas distribution, wide humidity regulation range, wide application, etc.

The present invention discloses an inclined optical fiber raster based relative hygrometer for measuring relative humidity of air, which comprises a light source, single mode optical fibers, and an inclined optical fiber raster and an optical spectrum analyzer, wherein, the light source is connected through a single mode optical fiber to the inclined optical fiber raster, the output end of the inclined optical fiber raster is connected through a single mode optical fiber to the optical spectrum analyzer, and the inclined optical fiber raster is coated with a film made of a moisture sensitive material. The humidity sensitive material is polyimide material, or carbon-fiber composite material, or epoxy-phenolic resin moisture-sensitive material. The present invention incorporates the advantages of high moisture expansion linearity and stable chemical property of polyimide PI film, flexible design, high long term stability and exchangeability, and high response rate. In addition, the high temperature resistant, corrosion resistant, and optical fiber raster type sensor incorporates high measuring accuracy, miniature, interference resistance, and reusability, and is suitable for use in environmental extremes. Therefore, the present invention has advantages including low cost, simple construction, and easy implementation.

A dew point hygrometer for determining the dew point of a gas in which a displaceable transparent film is in contact with the gas and forms a condensation surface. The film is placed on a temperature control device controlling its temperature and an optic fiber, emits light on the film and reflected light is detected in another optic fiber, the two optical fibers being positioned at an angle with respect to the film. Condensation formed on the film changes the light transmitted by the film which is periodically displaced so that a new uncontaminated regions are exposed to the light.

A weather sensor system for gathering and transmitting weather related information. The system integrates information gathered from a barometer, temperature sensor, hygrometer, GPS, tilt sensor, and an anemometer. The anemometer assembly is a combined wind speed and direction sensor and radio antenna. The weather sensor data can be transmitted from a remote location and relay data to central collection point or network location.

A moisture meter (1) has a hand-held casing (2) with a digital microcontroller (50), LCD display (4), and a keypad (3). Spring-loaded contacts (6) contact material and allow capacitive impedance measurement via electrodes (5) and drive / pickup circuits (20). Also, a relative humidity probe (9) provides an input so that the processor generates both moisture contact near-surface measurements and also relative humidity measurements. This allows optimum analysis of material.

The invention discloses a verifying device and method for an online sulfur hexafluoride hygrometer. An air tank is connected with a verifying cabin through an air outlet pipeline; the air outlet pipeline is provided with a verifying inlet valve; the verifying cabin is connected with a circulating pump cabin through a pipeline; an exhaust pipeline of the circulating pump cabin is provided with a connecting valve, an exhaust valve and an exhaust flow meter in sequence; an outlet pipeline of the circulating pump cabin is connected with the air tank and is provided with an outlet valve; a diaphragm pump is arranged in the circulating pump cabin; the circulating pump cabin is provided with a circulating pressure gauge; the verifying cabin is provided with an interface for connecting a verifiedhumidity sensor; the air tank is provided with a pressure gauge and an air inlet pipe; the air inlet pipe is provided with an air inlet valve; a vacuum pump is connected with the air tank through a vacuumizing pipeline; and the vacuumizing pipeline is provided with a vacuum pump air inlet valve. By adopting the device, the online sulfur hexafluoride hygrometer can be compared and measured under the conditions of different gas pressures and different temperatures, and the accuracy of the online hygrometer can be remarkably enhanced.

The invention discloses a microprobe type hygrometer based on a Fabry-Perot interferometer and a manufacturing method thereof; the microprobe type hygrometer comprises a general mono-mode optical fiber, a large-core diameter hollow-core optical fiber, a big numerical value bore diameter multi-mode photonic crystal optical fiber which are welded and fixed in succession; the hollow core of the large-core diameter hollow-core optical fiber is internally filled with hydrogel stuffing; the length of the big numerical value bore diameter multi-mode photonic crystal optical fiber is less than that of the large-core diameter hollow-core optical fiber; and an air hole on an outer cladding of an exposed end of the big numerical value bore diameter multi-mode photonic crystal optical fiber forms a through hole. The invention also discloses the manufacturing method for the hygrometer. The invention has the beneficial technical effects that the novel hygrometer is simple and convenient to operate, better in measurement accuracy, and small and exquisite in volume, and has wide application range.

A hygrometer and dew-point instrument is provided that is structurally simple while reducing the workload during maintenance. The hygrometer measures relative humidity of a measurement space, and has a main body that encapsulates a working fluid therein and causes a heat-pipe phenomenon. The main body is disposed across the measurement space and an external space spaced from the measurement space by a heat-insulating part and has a temperature lower than the measurement space. A first temperature deriving part derives the temperature of the main body in a section where the working fluid evaporates. A space temperature detecting unit detects the temperature of the measurement space. A computation unit calculate relative humidity of the measurement space based on the temperature of the main body derived by the first temperature deriving part and the temperature of the measurement space detected by the space temperature detecting unit.

The invention relates to precision detection of an industrial gas dew point and concretely relates to a double-mirror dual-optical path chilled-mirror dew-point hygrometer. The double-mirror dual-optical path chilled-mirror dew-point hygrometer solves the problem that the traditional chilled-mirror dew-point hygrometer has harsh requirements on environmental working conditions such as an environment temperature, has a slow measurement speed and is not easy to carry because of large weight and volume of the whole hygrometer. The double-mirror dual-optical path chilled-mirror dew-point hygrometer uses two photoelectric measurement systems comprising two mirrors, two light sources and two optoelectronic receiver components, utilizes a temperature balance pressure plate and a measurement chamber to maintain temperature balance so that the equipment environment adaptability is improved, utilizes a special small Stirling cryocooler as a cold source which can quickly and accurately cool the object to 100 DEG C or less without any aid, so that the whole hygrometer volume and weight are greatly reduced, and directly utilizes the top surface of a refrigeration end of the Stirling cryocooler as a detection mirror surface so that the detection accuracy is improved.

The invention discloses a hygrothermograph node monitoring system and a hygrothermograph node monitoring method based on the zigbee technology, and belongs to the technical field of indoor environment wireless detection. The system comprises a voltage sensing modulation circuit, a capacitive sensing modulation circuit, a digital sensing circuit, a wireless processor, a liquid crystal display module, a USB (universal serial bus) to serial port circuit and a keyboard, wherein the outputs of the voltage sensing modulation circuit, the capacitive sensing modulation circuit and the digital sensing circuit are respectively connected with the wireless processor, and the humidity detection results are obtained through data merging processing and are sent to the liquid crystal display module and the USB to serial port circuit to be output. A plurality of sensors are adopted for measuring the humidity, the precision and the reliability of the humidity detection are improved. The CC2530 wireless processor supporting the ZigBee technology is adopted to be used as a main control chip to form a temperature and humidity sensor node, a wireless sensor network is used for networking, and the system and the method have the characteristics that the communication line connection is not needed, the networking is convenient, the precision is high, and the like.

The invention provides a blast furnace molten iron quality predicting system based on ensemble learning and a method. The system comprises the components of a blast furnace, a hot air furnace, a firstflowmeter, a second flowmeter, a third flowmeter, a thermometer, a pressure gauge, a humidity gauge, a furnace bosh gas metering analyzer, an oxygen enrichment measuring analyzer, a data acquisitiondevice and a computer. Preprocessing is performed on acquired real-time to-be-tested blast furnace data. Input and output parameters are acquired. A multivariate molten iron quality online predictingmodel of an established root mean square error probability weighted integrated random weight neural network is used for obtaining an online predicting result. The blast furnace molten iron quality predicting system and the method have advantages of preventing uncertainty caused by offline testing hysteresis and manual operation, realizing real-time online accurate soft measurement, supplying key indexes for in-time accurate determining of the internal operation state of the blast furnace by a field operator, updating a soft measurement model parameter by means of latest process data accordingto the working condition change, preventing restriction of a time-invariant model, and realizing high practical value.

The invention discloses a system and a method for testing the catalyst dehydrogenation performance, and belongs to the field of catalytic reaction engineering. The system comprises a hydrogen gas cylinder, a pressure reducing valve, a mass flowmeter, a check valve, an air compressor, a buffer tank, a first electric control valve, a first vortex precession flowmeter, a mixed gas distribution pipe, a catalytic reactor, a second electric control valve, a second vortex precession flowmeter, a first pressure transmitter, a first thermoelectric couple, a first hygrometer, a second pressure transmitter, a second thermoelectric couple, a second hygrometer and a data acquisition and control system. The method is characterized in that the variation of temperatures, pressures, hydrogen contents and relative humidity at an inlet and an outlet of the catalytic reactor along with time is recorded through the data acquisition and control system. The system and the method, disclosed by the invention, can simulate the design basis accident state of a nuclear power station containment accurately.

A cooled mirror dew-point hygrometer includes a thermoelectric cooling element, mirror, light-emitting unit, light-receiving unit, temperature detector, dew-point increase detector, and control unit. The control unit forcibly supplies a current to the thermoelectric cooling element in a direction reverse to a positive direction when the dew-point increase detector detects a rise in dew point.

The invention discloses a dynamic adsorption toxic gas detection device. According to the invention, compressed air is delivered into one of the gas inlets of a gas mixer through an air purifier, a gas humidity regulator, an electronic thermometer / hygrometer, and a gas flowmeter; an outlet of a toxic gas source communicates with a second one of the gas inlets of the gas mixer. The gas outlet of the gas mixer communicates with a gas inlet of a toxic gas concentration detector and a gas inlet of a toxic gas absorption filter. The outlet of the toxic gas absorption filter is connected with a penetration concentration detector. The gas humidity regulator, the electronic thermometer / hygrometer, and the gas flowmeter form an air flow rate and air humidity regulation circuit. The toxic gas concentration detector, the toxic gas absorption filter, and the penetration concentration detector form a dynamic absorption and toxic gas detection circuit. The device provided by the invention has the advantages of simple structure, convenient operation, and precise detection data. With a waste absorption device, pollution to the atmosphere and harm to operators caused by residual toxic gas are avoided.

The invention discloses a tritium gas flow generator system with constant concentration and a method thereof. The tritium gas flow generator system comprises a closed loop circuit in which a tritium gas flow generator, a monitor for to-be-detected tritium gas and a tritium gas flow circulation pump are installed sequentially. The closed loop circuit is also provided with a temperature control unit matched with the tritium gas flow generator, an inlet end and an outlet end of the temperature control unit are both provided with a temperature sensor. An inlet end and an outlet end of the tritium gas circulation pump are both provided with a pressure sensor. A hygrometer is arranged between the temperature control unit and the monitor for to-be-detected tritium gas, and a nitrogen reservoir in communication with the tritium gas flow generator is also included for supplying the nitrogen reservoir with dry nitrogen. The tritium gas flow generator system achieves value traceability of a gas-borne tritium monitor, realizes accurate calibration of the gas-borne tritium monitor, and achieves gas-borne tritium monitoring of large-scale nuclear power devices, military isotope production reactors, military isotope content test sites, and military isotope packaging use sites.

The invention pertains to the field of agricultural machinery, in particular to a mechanical ventilation dehumidifier used for plastic houses and greenhouses, which consists of air supply fans, air supply channels, a control device, a testing device and exhaust fans. Heaters are arranged in the air supply channels; the control device consists of switching groups, single board computers or control machines; the testing device comprises a thermometer, a hygrometer and a carbon dioxide analyzer; the heaters take fiber material as a heating body; the air supply fans and the exhaust fans use switched reluctance motors. By using sunlight shed chambers that are generally used at present, adopting advanced carbon fiber material as the heating body and being driven by switched reluctance motors with high efficiency and energy saving, the invention can realize double-machine synchronization, so as to achieve the purposes of energy saving with high heat efficiency, stability, reliability, and being free of maintenance, thus being capable of adjusting indoor humidity and air conditions. The invention can be broadly applied to sunlight sheds and livestock and poultry greenhouses.

The present disclosure relates to a thermo-hygrometer and method of controlling the thermo-hygrometer for adjusting an indoor environment to a target temperature or humidity. The thermo-hygrometer of the present disclosure may control other home appliances using an Internet-of-thing environment via a 5G communication network, and may estimate a control method for other home appliances using machine learning of artificial intelligence. The thermo-hygrometer for adjusting an indoor environment according to an embodiment of the present disclosure may include a sensor for detecting at least one among a temperature and a humidity, a communicator for communicating with an external device, a memory for storing information about at least a portion of home appliances arranged indoors, and a controller for generating a control signal for controlling at least a portion of the home appliances based on at least information about the temperature and humidity detected by the sensor.

The invention discloses a moisture-proof and condensation-proof control method for an indoor station. The moisture-proof and condensation-proof control method comprises the steps of selecting an indoor temperature and humidity control mode, and configuring an indoor temperature and humidity regulation-control range according to a season and the temperature and humidity control mode; acquiring indoor temperature and humidity, outdoor temperature and humidity, a water logging opening-closing state and an access opening-closing state of the indoor station; comparing the acquired outdoor temperature and humidity with a local air dew point hygrometer, looking up a dew point temperature, comparing the acquired indoor temperature and humidity with the dew point temperature, and recording a comparison result every time; and starting a dehumidifier to dehumidify while judging that the indoor temperature achieves the dew point temperature or judging that the indoor temperature has a trend of approaching to the dew point temperature by virtue of recent multiple comparison results, wherein an air conditioner automatically heats or refrigerates according to the season to break the dew point temperature, thereby preventing indoor condensation. The moisture-proof and condensation-proof control method disclosed by the invention is moisture-proof and condensation-proof, and capable of furthest saving energy, guaranteeing safe and normal long-time running of electrical equipment, and lowering a maintenance cost.

The present invention relates to a total heat exchange-type ventilating apparatus and to a method for controlling same, which involve sensing indoor and outdoor temperatures and humidities, calculating indoor and outdoor enthalpies from the sensed temperature and humidity information, and selectively operating in a heat exchange mode or in an outdoor air cooling mode in accordance with the result of comparing the sizes of the enthalpies, thereby controlling the indoor temperature and humidity to be maintained at comfortable levels. To accomplish this, the apparatus of the present invention comprises: a first exhaust chamber (30) and a second exhaust chamber (40); a first air supply chamber (10) and a second air supply chamber (20); a total heat exchanger (50) for exchanging heat between indoor air introduced from the first exhaust chamber (30) to the second exhaust chamber (40) and outdoor air introduced from the first air supply chamber (10) to the second air supply chamber (20); a bypass pipe (60) which forms an airflow channel for enabling outdoor air to be directly introduced into an indoor area without passing through the total heat exchanger (50) during a free cooling operation; a first temperature sensor (31) and a first humidity sensor (33) for sensing the temperature and humidity of the indoor air; a second temperature sensor (11) and a second humidity sensor (13) for sensing the temperature and humidity of the outdoor air; and a control unit (70) which calculates the enthalpies of the indoor air and outdoor air on the basis of the temperatures and humidities of the indoor air and outdoor air, compares the sizes of the enthalpies, and controls an outdoor air inflow path.

An apparatus for wet cleaning a substrate includes a clean air supplier for supplying the clean air into a cleaning draft, a humidifier for supplying steam or mist like water drops into the cleaning draft, a hygrometer, connected to the humidifier and positioned at the level of the cleaning solution, an exhaust piping and an exhaust rate control means.

The invention discloses a damp-proof bearing storage box which comprises a box body, a box cover and uprights. The box cover is covered on the box body, guard rings are arranged on the edges of the box cover, the upper surfaces of the guard rings incline outward and downward, a plurality of wheels are arranged at the bottom of the box body, a breather pipe is arranged on the side wall of the box body, a dry box and a hygrometer are arranged on the inner wall of the box body, a plurality of water outlet holes are formed in the inner wall of the box body bottom, a plurality of support bosses are arranged at the bottom inside the box body, threaded holes are formed in the support bosses, a check ring is arranged at the bottom of each upright, a plurality of through holes are formed in each check ring, a screw is connected with the lower surface of each check ring, and each screw is screwed in the corresponding threaded hole. According to the damp-proof bearing storage box, the uprights with check rings are arranged in the box body, so that bearings can be arranged in order, and the surface is not prone to adhering water drops.

The invention discloses a humidity-controllable static gas-sensitive test device and method, relates to a gas-sensitive test device and method, and aims to solve the problems of bad humidity controllability, difficult construction, and bad stability in the conventional gas-sensitive test devices and methods. The device comprises a humidity control system, the humidity control system is provided with a gas inlet, which is used to introduce carrier gas, the outlet of the humidity control system is communicated to No.1 gas inlet of a gas chamber through a No.1 gas valve, a gas-sensitive element, a fan, a thermometer and hygrometer are arranged in the gas chamber, the fan is used to mix the gas in the gas chamber, the signal output terminal of the gas-sensitive element is connected to the digital signal input terminal of a data collector, the digital signal output terminal of the data collector is connected to the digital signal input terminal of a computer, a No.1 temperature constant device is used to control the temperate of the gas chamber, and the gas chamber is provided with a No.2 gas inlet, which is used to introduce a gas sample to be tested. The device and method are mainly used to carry out gas-sensitivity tests on inorganic gas.

The present invention discloses a device and a method for microleak identification of a coal-powder boiler or a circulating fluidized bedboiler. The device comprises a hearth flue, a dust remover, aninduced draft fan, a chimney, a computer, trepanning measurement points, a thermocouple, a hygrometer and a PLC system. The two sides of the heating surface in the hearth flue are provided with the plurality of trepanning measurement points, the trepanning measurement points are internally provided with protective casings; the thermocouple and the hygrometer are respectively arranged in the protective casings to measure the temperatures and the humidities of different heating surfaces in real time and transmit the measurement values into the PLC system through cables; the PLC system is connected with the computer, the PLC system is configured for data analysis and processing, an analysis result can be displayed on the computer in a curve mode, if the humidity curve trend of a certain pointor the humidity difference of some two points reaches a threshold value, leakage alarm is emitted, and the positions of the heating surfaces are confirmed to perform furnace shutdown maintenance. Thedevice and the method for microleak identification of a coal-powder boiler or a circulating fluidized bedboiler can discover problems and can emit alarm when the leakage amount is little, and can discover the preliminary position of the leak surface.

The invention relates to an LNG leakage water curtain restraint experiment device. The LNG leakage water curtain restraint experiment device mainly solves the problem that an LNG leakage water curtain restraint experiment device is not available yet in the prior art. The LNG leakage water curtain restraint experiment device comprises a discharging system, a water curtain system, a data acquisition system and a control system, wherein the discharging system comprises an LNG storage tank, an LNG discharging tank, an inert gas cylinder and a discharging spray head, the water curtain system comprises a water inlet pipeline and a water curtain nozzle, and the data acquisition system comprises a signal processor, a thermocouple, a methane concentration detector, an anemometer, a hygrometer and a high-speed camera. By the adoption of the LNG leakage water curtain restraint experiment device, the problem that LNG leakage water curtain restraint experiment device is not available yet in the prior art is well solved. The LNG leakage water curtain restraint experiment device can be applied to an LNG leakage water curtain restraint experiment.

The invention provides a method for assessing efficiency of an underground powerhouse ventilating and air conditioning system. Thermometers, hygrometers and air volume monitors are arranged outside an underground powerhouse and in an air inlet duct opening and an air outlet duct opening of the ventilating and air conditioning system. The method comprises the following steps that the initial temperature and the initial humidity are measured, and the initial air enthalpy is calculated; the outlet temperature and the outlet humidity D2 are measured, and the outlet air enthalpy of the ventilating and air conditioning system is calculated; the initial air volume and the outlet air volume are measured, and the ventilation heat dissipation quantity is calculated; the refrigerating capacity and total consumed power of a refrigerating unit are obtained; the efficiency of the ventilating and air conditioning system is judged. According to the method, the designing and operating energy consumption level of the ventilating and air conditioning system can be comprehensively judged, it can be dynamically and comprehensively reflected that the ventilating and air conditioning system can adapt to the change of environment heat, a value basis is provided for judging whether the arrangement of ventilating and air conditioning systems of different underground powerhouse is reasonable or not and whether operating is achieved in an energy-saving mode or not, and the theoretical foundation and a mathematical model are provided for making system design and energy-saving targets for operation management, assessing system energy saving level and making energy saving strategies.

The invention discloses an intelligent substation capable of changing a structure according to the environment. The intelligent substation comprises a box, wherein a bearing plate is welded at the bottom of an inner cavity of the box, a substation body is arranged at the top of the bearing plate, a thermometer and a hygrometer are mounted at the top of the substation body, heat dissipation cavities are formed in left and right sides of the box, an accommodating cavity is formed in the inner cavity of the box, the bottom of the accommodating cavity is communicated with the top of each heat dissipation cavity, a motor is mounted on the inner wall of the box, and an output end of the motor is rotationally connected with a conveying belt. According to the intelligent substation capable of changing the structure according to the environment, when the outdoor temperature is higher, a heat dissipation channel is opened by a change type adjusting mechanism, and heat in the substation is dissipated timely; when the outdoor humidity is larger, the heat dissipation channel is closed by the adjusting mechanism, heat dissipation is facilitated, and the substation cannot be affected with damp.

The invention discloses a multifunctional dryer, which comprises a combustible gas supply device, a hot air chamber and an oven body. A combustion chamber and a heat dissipation pipeline are arranged in the hot air chamber, the top of the hot air chamber is provided with a first eddy fan for conveying outside air to the hot air chamber, and a hot air outlet is formed below the side wall of the hot air chamber. The heat dissipation pipeline is arranged below the first eddy fan, one end of the heat dissipation pipeline is communicated with the combustion chamber, and the other end of the heat dissipation pipeline is communicated with an exhaust pipe. A grid supporting plate for supporting an agricultural product, a cold air axial flow fan positioned between the grid supporting plate and the bottom of the oven body and a condensation plate positioned between the grid supporting plate and the top of the oven body are arranged in the oven body; the part, positioned between the grid supporting plate and the bottom of the oven body, of the side wall of the oven body is provided with a hot air inlet; and the top of the oven body is provided with a dehumidifying axial flow fan for conveying wet airflow in the oven body to the outside, and the top of the oven body is also provided with a hygrometer and a thermometer.

The invention discloses an OH free radical standard gas generation system, comprising a synthetic gas source, a dry purifier communicated with the synthetic gas source; the synthetic gas comprises mixed high purity nitrogen and high purity oxygen in definite proportion; the system further comprises a quartz tube internally provided with a low pressure mercury lamp; a dew-point hygrometer and an O3 analyzer are respectively accessed to the gas outlet of the quartz tube through pipelines; the middle part of one pipeline outputting synthetic gas is accessed to a mass flowmeter; and the middle part of the other pipeline outputting synthetic gas is accessed the other mass flowmeter and water vapor generator in sequence.