Gas instrument calibrating device
A kind of instrument verification and gas technology, which is applied in the direction of measuring devices, testing/calibrating devices, instruments, etc., can solve the problems of lack of cooling devices in the verification devices and affect the measurement accuracy, and achieve the effects of improving detection accuracy, good seismic performance, and easy movement
Inactive Publication Date: 2018-02-27
MAANSHAN SHENHUA INSTR
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Problems solved by technology
[0004] The purpose of the present invention is to solve the problem that the lack of cooling device in the verification device in the prior art affects the measurement accuracy, and proposes a gas instrument verification device
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[0016] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention.
[0017] In describing the present invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", " The orientation or positional relationship indicated by "outside", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, so as to Specific orientation configurations and operations, therefore, are not to be construed as limitations on the invention.
[0018] refer to Figure ...
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The invention discloses a gas instrument calibrating device. The gas instrument calibrating device comprises a device body, a pump gas unit and a detection unit, wherein the detection unit is installed at the left side of the upper end of the device body, a negative pressure pipe is communicated with the upper end of the detection unit, a limiting groove is formed in the right side of the upper end of the device body, a limiting rod is slidably connected into the limiting groove, penetrates through the inner wall of the upper end of the limiting groove and is fixedly connected with a supporting plate, multiple reset springs are welded between the supporting plate and the device body, the pump gas unit is installed at the upper end of the supporting plate and is connected with the detectionunit through a pipeline, a cooling device is installed in the middle of the upper end of the device body, the middle of the pipeline is sleeved with the cooling device, the cooling device is filled with condensate water, and a water outlet pipe is communicated with the bottom of the cooling device. The gas instrument calibrating device is stable in structure, low in manufacturing cost, good in vibration resistance, and convenient to move; the cooling device is arranged and can cool gas, the detection precision is improved, and the gas instrument calibrating device is worthy of popularization.
Description
technical field [0001] The invention relates to the technical field of gas instrument equipment, in particular to a gas instrument verification device. Background technique [0002] Standard meter method There are many methods for flow standard devices, and the gas flow standard device using the sonic Venturi nozzle (or sonic nozzle) as the standard meter is one of them. Compared with using other flowmeters as standard meters, using sonic nozzles as standard meters has many advantages, such as simple structure, stable performance, high accuracy, no moving parts, easy maintenance, long verification period (five years) and so on. The sonic nozzle method gas flow standard device is suitable for the detection and calibration of various gas flowmeters, and can detect mass flowmeters, velocity flowmeters, volumetric flowmeters, rotameters, differential pressure flowmeters or other types of flow count. [0003] However, the verification device in the prior art buries the pipeline...
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IPC IPC(8): G01F25/00
CPCG01F25/15
Inventor 申继东鲁廷涛芮鸿迎
Owner MAANSHAN SHENHUA INSTR