CN202903164U

CN202903164U - Hook height measurement system used for petroleum drilling machine

Info

Publication number: CN202903164U
Application number: CN 201220630952
Authority: CN
Inventors: 刘永国; 刘小明; 赵军民; 张谨
Original assignee: ZHONGMAN ELECTRICAL ENGINEERING AND TECHNOLOGY Co Ltd
Current assignee: ZHONGMAN ELECTRICAL ENGINEERING AND TECHNOLOGY Co Ltd
Priority date: 2012-11-26
Filing date: 2012-11-26
Publication date: 2013-04-24
Anticipated expiration: 2022-11-26

Abstract

The utility model discloses a hook height measurement system used for a petroleum drilling machine and belongs to the electrical field. The system of the utility model comprises a PLC control system, a signal generation module, a signal acquisition module and a HMI display system controlled by the PLC, wherein the signal generation module, the signal acquisition module and the HMI display system controlled by the PLC are successively connected with each other; an output terminal of the signal acquisition module is connected with an input terminal of the PLC control system. Through the above setting, by using the system of the utility model, the hook height can be well measured. The structure is simple and a method is easy to be achieved. The system is suitable for popularization.

Description

Oil-well rig hook height measuring system

Technical field

The utility model relates to a kind of altitude measurement system, concretely, belongs to a kind of oil-well rig hook height measuring system.

Background technology

Hook is the visual plant of oil-well rig elevator system, its function is to hang water swivel and drilling tool when normally creeping into, when making a trip, hang the suspension ring drilling, finish hoisting heavy, placement devices and put up the back work such as derrick, and eliminating accident at slight bit freezing or when being hampered.In drilling process, the wire rope that twines on the winch drum is along with the lifting of the rotation drive hook of cylinder, thereby rotatablely moving of winch drum just converts the rectilinear motion of hook to.The rectilinear motion that is hooked in greatly on the drilling floor surface and between the overhead traveling crane can reflect in real time with this parameter of hook height.

In the parameters of the measured record of drilling process; the measurement of hook height is the most basic, most critical, and other bumps down on the parameter such as (drilling speed), well depth, bit location and the hook such as drilling depth, when boring, and to pound defencive function, winch automatic deceleration function etc. all be to derive from the basis that records hook height.Usually hook height be by installing at winch drawworks sensor---optical encoder and SCM Based signal processing system thereof are measured realization, its circuit design is complicated, each initialization is cumbersome, and this type of measurement mechanism belongs to analog circuitry system, measuring accuracy is not high enough, error is large, and the normal appearance of the height that moves up and down can not return zero, has larger cumulative errors behind the long-play.

The utility model content

Thereby the purpose of this utility model be to overcome existing drilling machine hook altitude measurement system control accuracy is not high, error greatly, easily is disturbed and stability the bad production efficiency of this drilling equipment and the quality of completion of having reduced, provide a kind of oil-well rig simple in structure, that measuring accuracy is high and antijamming capability is strong the large hook height measuring system of using.

To achieve these goals, the technical solution adopted in the utility model is as follows:

Oil-well rig hook height measuring system comprises the PLC control system, the signal generating module, the signal acquisition module that connect successively, and the HMI display system that controlled by PLC, wherein the output terminal of signal acquisition module links to each other with the input end of PLC control system.

In order to realize better the function of PLC system, described PLC control system comprises PLC, the storer that all links to each other with PLC, signal acquisition module interface, HMI display system interface, wherein the signal acquisition module interface links to each other with signal acquisition module, and HMI display system interface links to each other with the HMI display system.

For the Measurement accuracy hook height, the input end of described signal generating module also is connected with winch drum shaft.

As a kind of preferred, described signal generating module is high speed counting module.

As a kind of preferred, described HMI display system is man-machine interface display system.

Compared with prior art, the utlity model has following beneficial effect:

(1) the utility model is simple in structure, and with low cost, stable performance is fit to large-scale promotion and uses very much.

(2) the PLC control system in the utility model and HML interact, and behind the signal that receives signal acquisition module output, can advance to process fast, can measure hook height, need not to increase in addition extra high cost.

(3) the utlity model has good extendability and since signal generating module and signal acquisition module not only measuring height, can also measure width etc. simultaneously, therefore also can carry out bumping down on depth survey and the hook protection of pounding.

Description of drawings

Fig. 1 is theory diagram of the present utility model.

Fig. 2 is the theory diagram of PLC system in the utility model.

Embodiment

The utility model is described in further detail below in conjunction with accompanying drawing and embodiment, and embodiment of the present utility model includes but not limited to the following example.

Embodiment

As shown in Figure 1, this oil-well rig adopts the hook height measuring system, comprises the signal generating module, signal acquisition module, PLC control system, the HMI display system that connect successively.Wherein also be connected with winch drum shaft on the input end of this signal generating module, described signal generating module is pulse encoder, described signal acquisition module is pulse encoder, and this pulse encoder is German PEPPERL FUCHS incremental encoder, and model is RHI90N-OIAK1R61N-1024; This signal acquisition module is the high speed counting module that Siemens Company produces, and concrete model is 6ES7350-1 AH03-0AE0; The PLC control system is Siemens PLC C control system, as shown in Figure 2, this PLC control system can comprise according to concrete application of the present utility model: PLC, the storer that all links to each other with PLC, signal acquisition module interface, HMI display system interface, wherein the signal acquisition module interface links to each other with signal acquisition module, and HMI display system interface links to each other with the HMI display system.

Principle of the present utility model is that pulse encoder is installed on the winch drum shaft of rig, the wire rope that twines on this winch drum shaft is along with the rotation of cylinder drives the hook lifting, pulse encoder is exported the pulse signal corresponding with hook height thereupon, after this pulse signal entered high speed counting module, the PLC control system was processed into the true altitude of hook to it.PLC accurately calculates the hook height value.

Further, described HMI display system is man-machine interface images, carry out zero clearing by the technology reset button logarithm value on the HMI this moment, make this button for green, rig floor zero point of selecting take the driller is as the basis, at peak pulling hook, in this process, will highly be divided into six sections, by high speed counting module the technology pulse that collects is sent to the PLC system, pass through simultaneously the true altitude of tape measuring hook, the cooperation of PLC system and HMI system goes out correct height value according to the output signal of high speed counting module and the parameter correction of actual input.

As mentioned above, just can well realize the utility model.

Claims

1. oil-well rig hook height measuring system, it is characterized in that, comprise the PLC control system, the signal generating module, the signal acquisition module that connect successively, be subjected to the HMI display system of PLC control, wherein the output terminal of signal acquisition module links to each other with the input end of PLC control system.

2. oil-well rig according to claim 1 hook height measuring system, it is characterized in that, described PLC control system comprises PLC, the storer that all links to each other with PLC, signal acquisition module interface, HMI display system interface, wherein the signal acquisition module interface links to each other with signal acquisition module, and HMI display system interface links to each other with the HMI display system.

3. oil-well rig according to claim 2 hook height measuring system is characterized in that, the input end of described signal generating module also is connected with winch drum shaft.

4. oil-well rig according to claim 3 hook height measuring system is characterized in that, described signal generating module is high speed counting module.

5. each described oil-well rig hook height measuring system is characterized in that according to claim 1～4, and described HMI display system is man-machine interface display system.