Valve and instrument based on wireless signal control

Abstract

The invention discloses a valve and instrument based on wireless signal control. The valve comprises a valve base body, wherein the bottom of the valve base body is fixedly sleeved with a connecting plate, a threaded hole is formed inside the connecting plate, an external protective shell body is arranged at the top of the valve base body, the interior of the external protective shell body is in threaded connection with the interior of the valve base body through a connecting bolt, and an upper protective shell body is fixedly arranged at the top of the valve base body. A read number on an instrument body is observed, when a sealing valve element is not closed, a pressure sensor feeds the read number back to a control panel under the action of an extendable spring, the read number is read out and compared with the instrument body, the accuracy of the instrument body is further improved, and meanwhile, magnetic blocks are arranged on a valve rod sealing sleeve and a positioning plate respectively, and when a valve rod is controlled to be opened, large impact force can be buffered, so that the service life of the valve rod is guaranteed, and meanwhile the problem that restoring force of the extendable spring is lost due to the sudden action of the extendable spring can be solved.

Description

technical field [0001] The invention relates to the technical field of valves and instruments, in particular to a valve and instrument controlled based on wireless signals. Background technique [0002] Wireless control is a way to use wireless telemetry and remote control terminal equipment to replace the field bus and wirelessly control remote equipment. The principle is that surface acoustic wave (SAW) devices are excellent sensing carriers and passive devices. The operating frequency range of SAW devices is 10-105MHZ, which can directly couple radio frequency electromagnetic waves. Based on this characteristic, wireless sensing is realized with SAW devices: non-contact provides sensing energy and non-contact reading sensing output. Such sensors have the advantages of no power supply and signal connection, passive, small size, and strong anti-interference ability, and are suitable for applications in complex environments. [0003] In the existing technology, it is often...

AI Technical Summary

Problems solved by technology

[0003] In the existing technology, it is often only possible to adjust the position of the valve stem and the valve core by thread rotation, and then control the on-off of the valve. It is difficult to use wireless signals for control, so that it often needs to be adjusted manually during use, which affects Its use is convenient and efficient, and the instrument on the valve is installed on it. When the valve is closed, people are easy to mistakenly think that the instrument is out of order. At the same time, the contact between the valve core and the valve seat on the valve stem is not close enough to make it easy. Leakage, for this we propose a valve and instrument based on wireless signal control

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