CN205003113U - Mining pipe oxygen concentration meter - Google Patents

Abstract

The utility model relates to a mining pipe oxygen concentration meter, including probe, gauge outfit, the probe is connected with the gauge outfit, be provided with circuit arrangement in the gauge outfit, circuit arrangement includes oxygen concentration sensor, signal preprocessor module, signal processing control module, charactron display module, RS485 communication module, electric current signal output module, frequency signal output module, remote control signal oxygen concentration 0, oxygen concentration 1 module, can accurately measure oxygen concentration 2 in taking place undulant environment, and oxygen concentration 3, oxygen concentration 4 is higher.

Description

A kind of pipe used in mine oxygen densitometer

Technical field

The utility model relates to a kind of instrument measuring oxygen concentration, especially relates to a kind of pipe used in mine oxygen densitometer.

Background technology

Safety regulations in coal mine specifies: work or current place coal mine workman of descending to the mortal world, the oxygen concentration in air all should more than 19%.In addition, when generation disaster is beaten airtight, also need to manage the oxygen concentration of its inside.In the management work of these oxygen concentrations, oxygen densitometer must be used; The oxygen densitometer that underground coal mine uses then is required to meet small-sized, light, simple to operate and adopts the conditions such as blast resistance construction.

Electrochemical oxygen sensing probe output signal temperature influence is larger, and traditional oxygen densitometer does not have temperature compensation function, if the environment for use temperature difference is comparatively large, can make to there is comparatively big error between probe output value and actual value.In the use of reality, the oxygen concentration that people are concerned about is oxygen percent concentration in the environment, and electrochemistry oxygen densimeter measure to as if partial pressure of oxygen, at ambient pressure, the percent concentration of partial pressure of oxygen and oxygen is proportional, after being calibrated by densimeter, measure the percent concentration that partial pressure of oxygen just can obtain oxygen.After environmental pressure changes, when the percent concentration of oxygen is constant in the environment, partial pressure of oxygen can change thereupon, and such electrochemistry oxygen densimeter just cannot carry out oxygen concentration testing exactly.Because the impact of pressure does not have ubiquity, under most measurement environment is in normal pressure, the manufacture of existing electrochemistry oxygen densimeter was not considered to compensate the pressure surge of environment.Therefore, such densimeter occurs cannot measure exactly in the environment of fluctuation at environmental pressure at all, brings hidden danger to environmental monitoring work.

Utility model content

The purpose of this utility model is the defect overcoming prior art existence, provides a kind of pipe used in mine oxygen densitometer, occurs can measure exactly in the environment of fluctuation at environmental pressure, and structure is simple, and measuring accuracy is high.

The utility model solves the technical scheme that its technical matters adopts:

A kind of pipe used in mine oxygen densitometer, comprise probe, gauge outfit, described probe is connected with gauge outfit; Circuit arrangement is provided with in described gauge outfit;

Described circuit arrangement comprises oxygen concentration sensor, signal pre-processing module, signal transacting control module, numeral method module, RS485 communication module, current signal output module, frequency signal output module, remote control signal receiving module, fault alarm module;

Oxygen concentration sensor is electrically connected with signal pre-processing module signal; The output of signal pre-processing module is connected with signal transacting control module by serial line interface; Signal transacting control module is electrically connected with RS485 communication module two-way signaling by serial line interface; The output of signal transacting control module is connected with numeral method module, current signal output module, frequency signal output module, fault alarm module respectively by serial line interface; The output of remote control signal receiving module is connected with signal transacting control module.

Probe acquires oxygen concentration signals, gauge outfit by probe acquires to signal process and display, oxygen concentration sensor in gauge outfit by Signal transmissions to signal pre-processing module, signal pre-processing module changes signal into voltage signal, and filtering and amplification are carried out to it, this signal is passed to signal transacting control module, signal transacting control module shows after process computing in numeral method module, current signal output module simultaneously, current signal and frequency signal are passed to other equipment by frequency signal output module, communicated with external unit by RS485 communication module, signal is passed to computing machine and is shown to technician's analyzing and processing, the simultaneously setting of receiving computer and control signal, the optimum configurations or corresponding command information that staff sent by supporting telepilot is received by remote control signal receiving module.Send sound and light alarm prompting technician when concentration reaches preset value or this densimeter breaks down by fault alarm module to safeguard.

Beneficial effect: (1) pipe used in mine oxygen densitometer of the present utility model, occur at environmental pressure can measure exactly in the environment of fluctuation, structure is simple, and can accurately measure the concentration of oxygen, measuring accuracy is higher.

(2) pipe used in mine oxygen densitometer of the present utility model, carries out the operations such as optimum configurations, can send sound and light alarm and safeguard to point out technician when breaking down by telepilot.

Accompanying drawing explanation

Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.

Fig. 1 is the structural representation of preferred embodiment of the present utility model.

Fig. 2 is circuit structure block diagram of the present utility model.

Wherein: 1, pop one's head in; 2, gauge outfit; 3, oxygen concentration sensor; 4, signal pre-processing module; 5, signal transacting control module; 6, numeral method module; 7, RS485 communication module; 8, current signal output module; 9, frequency signal output module; 10, remote control signal receiving module; 11, fault alarm module.

Embodiment

Below in conjunction with accompanying drawing, preferred embodiment of the present utility model is described in detail, to make advantage of the present utility model and feature more easily be understood by those skilled in the art, thus more explicit defining is made to protection domain of the present utility model.

As shown in Figure 1 to Figure 2, embodiment of the present utility model comprises:

A kind of pipe used in mine oxygen densitometer, comprise probe 1, gauge outfit 2, described probe 1 is connected with gauge outfit 2; Circuit arrangement is provided with in described gauge outfit 2;

Described circuit arrangement comprises oxygen concentration sensor 3, signal pre-processing module 4, signal transacting control module 5, numeral method module 6, RS485 communication module 7, current signal output module 8, frequency signal output module 9, remote control signal receiving module 10, fault alarm module 11;

Oxygen concentration sensor 3 is electrically connected with signal pre-processing module 4 signal; The output of signal pre-processing module 4 is connected with signal transacting control module 5 by serial line interface; Signal transacting control module 5 is electrically connected with RS485 communication module 7 two-way signaling by serial line interface; The output of signal transacting control module 5 is connected 11 with numeral method module 6, current signal output module 8, frequency signal output module 9, fault alarm module respectively by serial line interface; The output of remote control signal receiving module 10 is connected with signal transacting control module 5.

Probe 1 gathers oxygen concentration signals, and the signal that probe 1 collects processs and displays by gauge outfit 2, oxygen concentration sensor 3 in gauge outfit 2 by Signal transmissions to signal pre-processing module 4, signal pre-processing module 4 changes signal into voltage signal, and filtering and amplification are carried out to it, this signal is passed to signal transacting control module 5, signal transacting control module 5 shows after process computing in numeral method module 6, current signal output module 8 simultaneously, current signal and frequency signal are passed to other equipment (as gas drainage system) by frequency signal output module 9, communicated with external unit (computing machine as gas drainage system) by RS485 communication module 7, signal is passed to computing machine and is shown to technician's analyzing and processing, the simultaneously setting of receiving computer and control signal, the optimum configurations or corresponding command information that staff sent by supporting telepilot is received by remote control signal receiving module 10.Send sound and light alarm prompting technician when concentration reaches preset value or this densimeter breaks down by fault alarm module 11 to safeguard.

Should be appreciated that specific embodiment described above only for explaining the utility model, and be not used in restriction the utility model.Still be among protection domain of the present utility model by spirit institute's apparent change of extending out of the present utility model or change.

Claims (1)

1. a pipe used in mine oxygen densitometer, is characterized in that: comprise probe, gauge outfit, and described probe is connected with gauge outfit; Circuit arrangement is provided with in described gauge outfit;

Described circuit arrangement comprises oxygen concentration sensor, signal pre-processing module, signal transacting control module, numeral method module, RS485 communication module, current signal output module, frequency signal output module, remote control signal receiving module, fault alarm module;

Oxygen concentration sensor is electrically connected with signal pre-processing module signal; The output of signal pre-processing module is connected with signal transacting control module by serial line interface; Signal transacting control module is electrically connected with RS485 communication module two-way signaling by serial line interface; The output of signal transacting control module is connected with numeral method module, current signal output module, frequency signal output module, fault alarm module respectively by serial line interface; The output of remote control signal receiving module is connected with signal transacting control module.