Today, I will introduce a national invention authorized patent-a gas turbine flowmeter. The patent was applied for by Tianjin Yippler Instrument Technology Co., Ltd., and the authorization was announced on December 14, 2016.
Content descriptionThe utility model belongs to the field of flow meters, in particular to a gas turbine flowmeter.
Background of the inventionThe gas turbine flowmeter is a velocity meter that measures the flow of gaseous media in a closed pipeline. It is a new generation flowmeter that integrates flow, temperature, and pressure detection functions, and can automatically compensate for temperature, pressure, and compression factor. It is an ideal instrument for gas metering in industrial industries such as, chemical industry, electric power, metallurgy, industrial boilers, and urban natural gas, gas pressure regulating station and gas trade metering. However, the existing gas turbine flowmeters still have the following problems: First, there is no filter layer in the gas turbine flowmeter. When the gas turbine flowmeter is not equipped with a filter in the front section, or the filter has poor filtering effect, when the gas with impurities Entering the gas turbine flowmeter will cause irreversible damage to the flowmeter and make the flowmeter unable to be used normally; second, the gas turbine flowmeter has poor diversion and rectification effect and poor measurement accuracy; third, the bearing lubrication effect is poor.
Summary of the inventionThe purpose of the utility model is to overcome the shortcomings of the prior art, to provide a gas turbine flowmeter, which prevents impurities from causing damage to the impeller and bearings, provides a safety guarantee for the normal use of the flowmeter, and makes the gas rush to the impeller more uniformly , The measurement accuracy is high, and at the same time, it realizes the timing to refuel the bearing, the bearing lubrication effect is good, and the bearing wear is reduced.
The utility model solves its technical problems by adopting the following technical schemes:
A gas turbine flowmeter, comprising a casing and a preamplifier, the preamplifier is arranged vertically above the casing, and is characterized in that a filter layer and a leading flow guide are sequentially arranged in the casing along the air intake direction. The rectifier, the impeller and the rear flow rectifier, the center of the front flow rectifier is provided with a leading fluid, the center of the rear end of the leading fluid is provided with a front bearing, and the center of the rear flow rectifier is provided with a rear fluid, so A rear bearing is arranged at the center of the front end of the rear guide fluid, a shaft is horizontally arranged between the front bearing and the rear bearing, and the shaft penetrates the front bearing, the impeller and the rear bearing.
A forward oil pipe is arranged under the front bearing, and a rear oil inlet pipe is arranged under the rear bearing. One end of the forward oil pipe and one end of the rear oil inlet pipe extend out of the bottom of the housing and communicate with the oil outlet pipe through a three-way joint. An electric oil pump and a solenoid valve are sequentially arranged on the oil outlet pipe along the oil outlet direction. The electric oil pump and the solenoid valve are electrically connected to a time controller. One end of the oil outlet pipe is connected with an oil tank, and the oil tank is arranged at the The bottom of the shell.
The beneficial effects of the utility model are:
There is a filter layer at the air inlet to filter the gas to prevent impurities in the gas from entering the gas turbine flowmeter, avoiding impurities from causing damage to the impeller and bearings, and providing a safety guarantee for the normal use of the flowmeter.
The utility model is provided with a diversion rectifier. The axis of the diversion rectifier hole is parallel to the contour line of the leading fluid, which not only plays a role of diversion, but also plays a role of rectification, so that the gas rushes to the impeller more uniformly, and the measurement accuracy is high.
Equipped with electric oil pump, solenoid valve and time controller that are electrically connected, the opening time of the electric oil pump and solenoid valve is controlled by the time controller, which realizes the timing of refueling the bearing, the bearing lubrication effect is good, and the wear of the bearing is reduced.
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