Coal gas casing wheel explosion-proof waist wheel flowmeter based on steam medium fluid

Abstract

The invention discloses a coal gas casing wheel explosion-proof waist wheel flowmeter based on steam medium fluid. The flowmeter structurally comprises a buoy short groove drum, a pointer dial plate,a dial plate frame cover, an overflow valve block, a sleeve wheel belt guide drum, an overflow recoil cylinder and a flange plate seat. The buoy short groove drum matches the sleeve wheel belt guidedrum. Mutual friction is avoided. A guide plate crawler belt is used for covering and tensioning to reduce strength collision operations. A low-friction slow linkage floating plate detection effect isformed. A pointer dial plate at the top is aligned through an airtight inner cavity to form an isolating and sealing effect. Coal gas is prevented from leaking to the gear dial plate due to insufficient air tightness; and then a low-density flow guide effect is formed according to the characteristics of steam medium fluid, and the flow guide bent plate and the flow division prismatic plate are matched to form a flowing flow flapping acceleration operation effect and a flowing flow flapping deceleration operation effect, so that the explosion-proof strength of the waist wheel flowmeter is improved, and the sleeve wheel belt conveying effect of coal gas is improved.

Description

technical field [0001] The invention is an explosion-proof waist wheel flowmeter based on a steam medium fluid coal gas sleeve, belonging to the field of flow instruments. Background technique [0002] Coal-to-gas is a type of steam medium fluid. It is often called coal gas in people's mouth. It is the raw material for cooking and burning in household stoves. For the pipeline pressure control and transportation of coal-to-gas, waist wheel flowmeter is often used for pipe flange butt joint and dial The index detection display operation, the shortcomings of the current technology to be optimized are: [0003] The coal-to-gas of the steam medium fluid type is a commonly used transport material in pipelines, and it is also the raw material for lighting and cooking in household stoves. In the pipeline transportation of coal-to-gas, waist wheel flowmeters are often used to detect pipeline pressure. At this time, the inside of the buoy plate Sliding brush friction can easily gener...

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Problems solved by technology

[0004] Aiming at the deficiencies in the prior art, the purpose of the present invention is to provide an explosion-proof waist wheel flowmeter based on the steam medium fluid coal-to-gas sleeve, so as to solve the problem that the steam-medium fluid-type coal-to-gas is a commonly used transport material in pipelines and is also a Raw materials for lighting and cooking in household stoves are often transported in coal-to-gas pipelines, and waist wheel flowmeters are often used to measure pipeline pressure. At this time, the internal sliding brush of the buoy plate rubs against the flowmeter connected to the entire pipeline. Sparks, causing the ignition of flammable coal-to-gas contact with sparks, thus causing conflicting operation of mechanical transmission work protection to the waist wheel rotation friction of the flowmeter and buoy collision, resulting in potential safety hazards for equipment, and to the air pressure of coal-to-gas real-time detection is a very difficult problem

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