Safe intelligent valve positioner capable of realizing signal feedback

A technology of intelligent valves and feedback signals, applied in the field of intelligent instruments, can solve the problems of manpower consumption, failure to know valve information in time, failure to feedback valve status to the control room, etc., and achieve the effect of ensuring safety

CN106885036AInactive Publication Date: 2017-06-23苏州虞创智能仪表科技有限公司
8 Cites 1 Cited by

Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
Publication Date
2017-06-23
Estimated Expiration
Not applicable · inactive patent

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
Patent Text Reader

Abstract

The invention discloses a safe intelligent valve positioner capable of realizing signal feedback. The safe intelligent valve positioner is mounted on a pneumatic actuation mechanism and is composed of a main control panel as well as an LKS adapter, an I / P module and a position sensor which are connected with the main control panel; the LKS adapter is connected with a computer in a control room; a safety switch is arranged between the I / P module and the main control panel and is used for diagnosing whether a current in a circuit exceeds a load or not, and the output end of the I / P module is connected with the pneumatic actuation mechanism and is used for controlling the pneumatic actuation mechanism; and the position sensor comprises a switch position feedback module, the input end of the switch position feedback module is connected with the I / P module, and the output end of the switch position feedback module is connected with the main control panel. In the way, the remote operation for an outdoor valve can be realized indoors, the outdoor valve can be automatically diagnosed in real time, and the state of the outdoor valve is fed back to the computer by a signal, so that the safe intelligent valve positioner is safe, convenient and rapid to operate.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to an intelligent instrument, in particular to a safe intelligent valve positioner capable of feeding back signals. Background technique

[0002] The valve positioner is divided into pneumatic valve positioner, electric valve positioner and intelligent valve positioner according to the structure. It is the main accessory of the control valve and is usually used in conjunction with the pneumatic control valve. The signal is used to control the pneumatic control valve. When the control valve operates, the displacement of the valve stem is fed back to the valve positioner through the mechanical device, and the valve position status is transmitted to the upper system through the electrical signal.

[0003] In the current market, intelligent valve positioners are the most widely used due to their high degree of automation, while traditional intelligent valve positioning can only unilaterally transmit signals to valves from the control ...

Examples

Embodiment Construction

[0015] The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, so as to define the protection scope of the present invention more clearly.

[0016] see figure 1 , the embodiment of the present invention includes:

[0017] A safe intelligent valve positioner capable of feedback signals is installed on a pneumatic actuator, including: a main control board, an LKS adapter connected to the main control board, an I / P module, and a position sensor; the LKS adapter is used connected to the computer in the control room; a safety switch is provided between the I / P module and the main control board for diagnosing whether the current in the line is overloaded, and the output terminal of the I / P module is connected to the pneumatic actuator The mechanism is connected to convert the electrical si...