CN107941287A - A kind of mine explosion-suppression and intrinsic safety type flowmeter - Google Patents

A kind of mine explosion-suppression and intrinsic safety type flowmeter Download PDF

Info

Publication number
CN107941287A
CN107941287A CN201610891358.7A CN201610891358A CN107941287A CN 107941287 A CN107941287 A CN 107941287A CN 201610891358 A CN201610891358 A CN 201610891358A CN 107941287 A CN107941287 A CN 107941287A
Authority
CN
China
Prior art keywords
shell
flowmeter
wire
sensor
suppression
Prior art date
Application number
CN201610891358.7A
Other languages
Chinese (zh)
Inventor
叶小羊
叶吉武
金安碎
叶建阳
叶晓彬
Original Assignee
浙江昭雅防爆电器有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 浙江昭雅防爆电器有限公司 filed Critical 浙江昭雅防爆电器有限公司
Priority to CN201610891358.7A priority Critical patent/CN107941287A/en
Publication of CN107941287A publication Critical patent/CN107941287A/en

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01FMEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F1/00Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through the meter in a continuous flow
    • G01F1/56Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through the meter in a continuous flow by using electric or magnetic effects
    • G01F1/58Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through the meter in a continuous flow by using electric or magnetic effects by electromagnetic flowmeters
    • G01F1/588Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through the meter in a continuous flow by using electric or magnetic effects by electromagnetic flowmeters combined constructions of electrodes, coils or magnetic circuits, accessories therefor
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01FMEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F15/00Details of, or accessories for, apparatus of the preceding groups insofar as such details or appliances are not adapted to particular types of such apparatus
    • G01F15/06Indicating or recording devices, e.g. for remote indication
    • G01F15/061Indicating or recording devices, e.g. for remote indication for remote indication
    • G01F15/063Indicating or recording devices, e.g. for remote indication for remote indication using electrical means
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01FMEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F15/00Details of, or accessories for, apparatus of the preceding groups insofar as such details or appliances are not adapted to particular types of such apparatus
    • G01F15/14Casings, e.g. of special material

Abstract

The invention discloses a kind of mine explosion-suppression and intrinsic safety type flowmeter, including flowmeter shell and converter shell, the upper end of the flowmeter shell is provided with wire connection terminal, sensor is provided with the cavity of flowmeter shell, sensor is electrically connected by signal wire and wire connection terminal, and wire connection terminal is connected by external cable with converter shell circuit;The lower end of the converter shell is provided with input/output interface, and display screen, button and nameplate are also respectively provided with the end face of converter shell;This mine explosion-suppression and intrinsic safety type flowmeter, with Faraday's electromagnetic induction law principle, the signal detected is transported in converter shell by sensor, and displayed data in display screen, observed for people, realize the Long Distant Transmit of signal, can install and use in the inferior place for having explosion risk of coal mine, the practicality is strong, and detection efficiency is high.

Description

A kind of mine explosion-suppression and intrinsic safety type flowmeter

Technical field

The present invention relates to flow meter technical field, especially a kind of mine explosion-suppression and intrinsic safety type flowmeter.

Background technology

Electromagnetic flowmeter be it is a kind of according to Faraday's electromagnetic induction law come the sense of conducting medium volume flow in measurement pipe Formula instrument is answered, using microcontroller embedded technology, realizes digital excitation, while CAN fieldbus is used on electromagnetic flowmeter, Belong to domestic initiation, technology reaches domestically leading level, electromagnetic flowmeter while scene display is met, can also export 4~ 20mA current signals have been widely used in chemical industry, environmental protection, metallurgy, medicine, papermaking, discharge for record, adjusting and control The industrial technologies such as water and administrative department.Electromagnetic flowmeter is in addition to the flow of measurable general conducting liquid, also measurable liquid solid two Xiang Liu, high viscosity liquid stream and salt, strong acid, the volume flow of highly basic liquid.But existing flowmeter structure is simple at present, Function is single, can not play the role of flame proof protection in the severe environments such as ore extraction, therefore, practicality is relatively low.

The content of the invention

Simply used it is an object of the invention to provide a kind of, the high mine explosion-suppression and intrinsic safety type flowmeter of precision, with Solve the problems, such as proposed in the above background technology.

To achieve the above object, the present invention provides following technical solution:A kind of mine explosion-suppression and intrinsic safety type flowmeter, including Flowmeter shell and converter shell, the upper end of the flowmeter shell are provided with wire connection terminal, in the cavity of flowmeter shell Sensor is provided with, the terminal of sensor is circumscribed with signal wire;The signal wire is divided into red cored wire and green cored wire, in red The outer end of cored wire and green cored wire is also enclosed with metal mesh shield layer;The red cored wire, green cored wire and metal mesh shield layer Front port fixed by cold-pressed terminal, be additionally provided with heat-shrink tube in the junction of signal wire and sensor;The biography Sensor is electrically connected by the wire connection terminal on signal wire and flowmeter shell, and wire connection terminal passes through external cable and conversion Device housing circuit connects;The lower end of the converter shell is provided with input/output interface, and input/output interface passes through cable It is electrically connected with wire connection terminal;Display screen, button and nameplate are also respectively provided with the end face of the converter shell, is shown Display screen and button are electrically connected with the circuit board inside converter shell.

As the further scheme of the present invention:The button is pressed including acknowledgement key, compound keys, upper key and lower key four Button

As the further scheme of the present invention:Edge in the converter shell cavity is also both provided with flame proof engagement Surface layer.

Compared with prior art, beneficial effect of the present invention:

This mine explosion-suppression and intrinsic safety type flowmeter, by the flowmeter shell and converter shell of setting, with faraday Law of electromagnetic induction principle, when measuring flow, when conductive liquid is flowed through perpendicular to the magnetic field of flow direction with flow velocity V, leads The flowing of conductive liquid induces a voltage directly proportional to mean flow rate, its induced voltage signal with liquid by directly connecing The signal detected, is transported in converter shell by tactile electrode detection by sensor, and by the electricity in converter shell The current signal of road plate outputting standard, and displayed data in display screen, observed for people;It is meanwhile real by button The Long Distant Transmit of existing signal, can install and use and detect effect by force in the inferior place for having explosion risk of coal mine, the practicality Rate is high.

Brief description of the drawings

Fig. 1 is the positive structure schematic of the present invention;

Fig. 2 is the structure diagram of sensor of the invention.

In figure:1- flowmeter shells;2- wire connection terminals;3- sensors;31- signal wires;311- red cored wires;312- greens Cored wire;313- metal mesh shield layers;314- cold-pressed terminals;32- heat-shrink tubes;4- converter shells;41- input/output interfaces;42- Display screen;43- buttons;44- nameplates.

Embodiment

Below in conjunction with the attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clear, complete Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, instead of all the embodiments.It is based on Embodiment in the present invention, those of ordinary skill in the art are obtained every other without making creative work Embodiment, belongs to the scope of protection of the invention.

Please refer to Fig.1-2, in the embodiment of the present invention, a kind of mine explosion-suppression and intrinsic safety type flowmeter, including flowmeter shell 1 With converter shell 4, the upper end of flowmeter shell 1 is provided with wire connection terminal 2, sensing is provided with the cavity of flowmeter shell 1 Device 3, sensor 3 are used to detect mining regional parameter setting, and the terminal of sensor 3 is also circumscribed with signal wire 31;Signal wire 31 It is divided into red cored wire 311 and green cored wire 312, signal wire 31 is marked respectively with red cored wire 311 and green cored wire 312, side Just wiring, avoids wiring entanglement, improves the wiring efficiency of staff;In the outer end of red cored wire 311 and green cored wire 312 also Be enclosed with metal mesh shield layer 313, metal mesh shield layer 313 it is possible to prevente effectively from surrounding low-intensity magnetic field to detect data interference, Improve the precision of detection data;Pass through in the front port of red cored wire 311, green cored wire 312 and metal mesh shield layer 313 Cold-pressed terminal 314 is fixed, and facilitates the connection between each cored wire by the cold-pressed terminal 314 of hard, in signal wire 31 with passing The junction of sensor 3 is additionally provided with heat-shrink tube 32, and heat-shrink tube 32 plays the firm power between fixed signal line 31 and sensor 3 Degree, avoids off-line, influences detection efficiency;Sensor 3 is electrically connected by signal wire 31 and the wire connection terminal 2 on flowmeter shell 1 Connect, wire connection terminal 2 is connected by external cable with 4 circuit of converter shell so that the data energy that sensor 3 will detect It is delivered in time in converter shell 4;The lower end of converter shell 4 is provided with input/output interface 41, input/output interface 41 It is electrically connected by cable and wire connection terminal 2;Be also respectively provided with the end face of converter shell 4 display screen 42, button by Button 43 and nameplate 44, display screen 42 and button 43 are electrically connected with the circuit board inside converter shell 4 so that sensing The data that device 3 detects can be shown on display screen 42, so that people observe;Moreover, the button 43 for passing through setting The numerical value of product can voluntarily be set, button 43 includes four acknowledgement key, compound keys, upper key and lower key buttons, Staff can be adjusted according to specification;Simultaneously as mining regional safety coefficient is relatively low, therefore to mining regional Environment temperature, which is detected, to be necessary, and the edge in 4 cavity of converter shell is also both provided with flameproof joint layer, It can play the role of effective flame proof;In actual use, flowmeter shell 1 and converter shell 4 are stored at air stream In storehouse that is logical, dry, not containing the corrosive gas for destroying metal and insulation, and environment temperature control in 0-40 DEG C of scope and Relative humidity is less than 85% place, avoids because storage method is improper, causes product testing failure or produces error.

In summary:This mine explosion-suppression and intrinsic safety type flowmeter, by the flowmeter shell 1 and converter shell 4 of setting, With Faraday's electromagnetic induction law principle, when measuring flow, conductive liquid is flowed through perpendicular to flow direction with flow velocity V During magnetic field, the flowing of conductive liquid induces a voltage directly proportional to mean flow rate, its induced voltage signal by with The signal detected, is transported in converter shell 4 by the electrode detection that liquid directly contacts by sensor 3, and by changing The current signal of circuit board outputting standard in device housing 4, and displayed data in display screen 42, observed for people;Meanwhile The Long Distant Transmit of signal is realized by button 43, can be installed and used in the inferior place for having explosion risk of coal mine, The strong detection efficiency of the practicality is high.

It is obvious to a person skilled in the art that the invention is not restricted to the details of above-mentioned one exemplary embodiment, Er Qie In the case of without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power Profit requires rather than described above limits, it is intended that all in the implication and scope of the equivalency of claim by falling Change is included in the present invention.Any reference numeral in claim should not be considered as to the involved claim of limitation.

Moreover, it will be appreciated that although the present specification is described in terms of embodiments, not each embodiment is only wrapped Containing an independent technical solution, this narrating mode of specification is only that those skilled in the art should for clarity Using specification as an entirety, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art It is appreciated that other embodiment.

Claims (3)

1. a kind of mine explosion-suppression and intrinsic safety type flowmeter, including flowmeter shell (1) and converter shell (4), it is characterised in that: The upper end of the flowmeter shell (1) is provided with wire connection terminal (2), and sensor is provided with the cavity of flowmeter shell (1) (3), the terminal of sensor (3) is circumscribed with signal wire (31);The signal wire (31) is divided into red cored wire (311) and green cored wire (312), also it is enclosed with metal mesh shield layer (313) in the outer end of red cored wire (311) and green cored wire (312);The red The front port of cored wire (311), green cored wire (312) and metal mesh shield layer (313) is consolidated by cold-pressed terminal (314) It is fixed, it is additionally provided with heat-shrink tube (32) in the junction of signal wire (31) and sensor (3);The sensor (3) passes through signal wire (31) it is electrically connected with the wire connection terminal (2) on flowmeter shell (1), wire connection terminal (2) passes through external cable and conversion Device housing (4) circuit connects;The lower end of the converter shell (4) is provided with input/output interface (41), input/output interface (41) it is electrically connected by cable and wire connection terminal (2);Display is also respectively provided with the end face of the converter shell (4) Shield (42), button (43) and nameplate (44), display screen (42) and button (43) with inside converter shell (4) Circuit board is electrically connected.
A kind of 2. mine explosion-suppression and intrinsic safety type flowmeter according to claim 1, it is characterised in that:The button (43) four acknowledgement key, compound keys, upper key and lower key buttons are included.
A kind of 3. mine explosion-suppression and intrinsic safety type flowmeter according to claim 1, it is characterised in that:The converter shell (4) edge in cavity is also both provided with flameproof joint layer.
CN201610891358.7A 2016-10-13 2016-10-13 A kind of mine explosion-suppression and intrinsic safety type flowmeter CN107941287A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610891358.7A CN107941287A (en) 2016-10-13 2016-10-13 A kind of mine explosion-suppression and intrinsic safety type flowmeter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610891358.7A CN107941287A (en) 2016-10-13 2016-10-13 A kind of mine explosion-suppression and intrinsic safety type flowmeter

Publications (1)

Publication Number Publication Date
CN107941287A true CN107941287A (en) 2018-04-20

Family

ID=61928810

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201610891358.7A CN107941287A (en) 2016-10-13 2016-10-13 A kind of mine explosion-suppression and intrinsic safety type flowmeter

Country Status (1)

Country Link
CN (1) CN107941287A (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202524382U (en) * 2012-03-15 2012-11-07 湖北沙鸥通信股份有限公司 Intrinsically safe repeater used for mining
CN202533112U (en) * 2012-04-24 2012-11-14 唐山大方汇中仪表有限公司 Flame-proof electromagnetic flow meter
CN205194406U (en) * 2015-12-08 2016-04-27 安徽鸿海电缆有限公司 This ampere of computer shielded cable
CN206095324U (en) * 2016-10-12 2017-04-12 浙江昭雅防爆电器有限公司 Mining NULL flowmeter

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202524382U (en) * 2012-03-15 2012-11-07 湖北沙鸥通信股份有限公司 Intrinsically safe repeater used for mining
CN202533112U (en) * 2012-04-24 2012-11-14 唐山大方汇中仪表有限公司 Flame-proof electromagnetic flow meter
CN205194406U (en) * 2015-12-08 2016-04-27 安徽鸿海电缆有限公司 This ampere of computer shielded cable
CN206095324U (en) * 2016-10-12 2017-04-12 浙江昭雅防爆电器有限公司 Mining NULL flowmeter

Similar Documents

Publication Publication Date Title
US6920799B1 (en) Magnetic flow meter with reference electrode
CN202119489U (en) Measuring equipment
US3161047A (en) Omnidirectional electromagnetic flowmeter
CN201964871U (en) Capacitive displacement sensor and component-type borehole strain meter adopting same
WO2005001994A3 (en) Connection systems and methods for utility meters
CN101189492A (en) Magnetic flow meter with unibody construction and conductive polymer electrodes
CN206146872U (en) Monitoring concrete surface crack 's device
JP2007232721A (en) Non-intrinsic safety explosion proof supply measuring device
CN204881898U (en) Full metal temperature sensor of corrosion -resistant type
CN103968918B (en) Digital liquid-level sensor
CN103278187B (en) There is the meter housing of the liquid-crystal display embedded in plastic layer
CN202092821U (en) Intrinsic safe digital pressure transducer
CN204854793U (en) Alkali all -metal of antiaciding flow temperature sensor
CN203349879U (en) Magnetic flow meter with connecting PTFE (Polytetrafluoroethylene) electrodes
US20150211902A1 (en) Interface between a Sensor Unit and an Explosion Resistant Housing
CN101484781A (en) Remote transmitter for analogue measuring devices
CN207649818U (en) A kind of intelligent transducer
CN105223413B (en) A kind of marine ship seawater pipeline stray current detecting device
CN102486392A (en) Water level monitoring device and water level monitoring method
CN203657865U (en) Coriolis mass flow meter
CN106052798A (en) Liquid level sensing device and liquid level detection method
CN101122620B (en) Power supply line
CN101545795A (en) Fluent metal electrical flow meter
CN203163780U (en) Bi-directional detection sensor assembly for intelligent water meter
WO2003006978A1 (en) Capacitive sensor device

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
RJ01 Rejection of invention patent application after publication
RJ01 Rejection of invention patent application after publication

Application publication date: 20180420