Sample gas cooling device for gas analyzer

Abstract

The invention relates to a sample gas cooling device for a gas analyzer, and relates to a gas cooling device, for solving the problem that the existing electronic cooler without cooling water is high in cost; the sample gas cooling device mainly comprises a cylinder, a sample gas pipe, a sample gas inlet, a dried sample gas output pipe and a vortex pipe refrigerator, wherein the cylinder is a cylindrical closed cylinder; a cold gas inlet is arranged at the upper part of the cylinder; an exhaust hole is arranged at the lower part of the cylinder; upper and lower sample gas pipe holes are respectively arranged on the top and at the bottom of the cylinder; the sample gas pipe is installed in the middle of the cylinder; a sample gas output pipe hole is arranged on the top of the sample gas pipe; the bottom of the sample gas pipe is open to form a condensate outlet; two ends of the sample gas pipe respectively pass through the upper and lower sample gas pipe holes; the sample gas inlet is arranged at the upper part of the sample gas pipe; the dried sample gas output pipe, two ends of which are open, is arranged in the sample gas pipe; a dried sample gas outlet is arranged on the top of the dried sample gas output pipe; the vortex pipe refrigerator uses compressed gas as energy and outputs cold gas; a cold gas output hole is connected to a cold gas inlet of the cylinder; and a pressure reducing valve is arranged between a gas inlet and a compressed gas inlet. Instrument compressed gas is only used as the energy in the sample gas cooling device; therefore, the cost is low; the essential anti-explosion effect is realized; the refrigerating effect is good; and furthermore, the refrigerating temperature is adjustable.

Description

technical field [0001] The invention relates to a gas cooling device, in particular to a gas analyzer sample gas cooling device. Background technique [0002] When the gas analyzer pretreatment adopts a wet pretreatment system, the sample gas will contain a certain amount of saturated water, and the change of temperature will cause water to precipitate. In the pretreatment, a heat exchanger must be installed to transfer the saturated water in the sample gas through the heat exchanger. The water condenses, allowing the dry sample gas to enter the analyzer, so as to prevent the water vapor in the sample gas from being brought into the analyzer, which will cause impact on the internal precision components, reduce the accuracy of the sensor, and affect the normal operation of the equipment . [0003] At present, the coolers required in the above equipment mainly use absorption coolers or electronic coolers to cool the sample gas to remove water vapor in the sample gas. Absorpt...

AI Technical Summary

Problems solved by technology

There are also electronic coolers, which are simple in structure and do not require refrigerant, but require a DC power supply. However, in explosion-proof areas, explosion-proof coolers are required, which are expensive

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