一种具有保护功能的超高温流量计

Superhigh temperature flowmeter with protecting function

Abstract

The invention provides a superhigh temperature flowmeter with a protecting function. The flowmeter comprises a measuring tube and an integrating meter connected with the measuring tube, wherein the measuring tube is connected with the integrating meter through a connecting base, an air chamber base and a transition connecting pipe which are connected from bottom to top in sequence, and a sensor is arranged in the air chamber base. The flowmeter further comprises a protecting structure connected with the air chamber base, wherein the protecting structure comprises a round steel pipe, an external thread matched with an internal thread in the air chamber base is machined at one end of the round steel pipe, and a boss ring is formed at the other end of the round steel pipe in an integrated mode; the end, away from the round steel pipe, of the boss ring is connected with a corrugated pipe, a connecting ring is arranged at the end, connected with the boss ring, of the corrugated pipe, and a welding port welded to a target rod of the sensor is formed in the other end of the corrugated pipe; cool fin sets are arranged on the outer wall of the connecting base and the outer wall of the transition connecting pipe respectively. By the adoption of the flowmeter, temperature and impurity insulation is achieved, and the sensitivity and service life of the sensor are not affected. By arranging the cooling fin sets, metering precision is higher, and stability is higher.
本发明提出了一种具有保护功能的超高温流量计,包括测量管及与其连接的积算仪表,所述测量管与积算仪表之间通过从下到上依次连接的连接座、气室座、过渡连接管连接,所述气室座内设有传感器,还包括与气室座连接的保护结构,所述保护结构包括一圆形钢管,所示圆形钢管的一端加工有与气室座内的内螺纹配合的外螺纹,另一端一体成型有凸台圆环;所述凸台圆环远离圆形钢管的一端与波纹管连接,所述波纹管与凸台圆环连接的一端设有连接圆环,另一端设有与传感器的靶杆焊接的焊接口,所述连接座与过渡连接管的外壁分别设有散热片组。本发明隔离温度、杂质、也不影响传感器灵敏度,使用寿命。散热片组的设置,计量的精度更高,稳定性更好。

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