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 PDFInfo
- 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
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- CN
- China
- Prior art keywords
- shell
- flowmeter
- wire
- sensor
- converter shell
- Prior art date
- Legal status (The legal status 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 status listed.)
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
- G01F1/56—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using electric or magnetic effects
- G01F1/58—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using electric or magnetic effects by electromagnetic flowmeters
- G01F1/588—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using electric or magnetic effects by electromagnetic flowmeters combined constructions of electrodes, coils or magnetic circuits, accessories therefor
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F15/00—Details of, or accessories for, apparatus of groups G01F1/00 - G01F13/00 insofar as such details or appliances are not adapted to particular types of such apparatus
- G01F15/06—Indicating or recording devices
- G01F15/061—Indicating or recording devices for remote indication
- G01F15/063—Indicating or recording devices for remote indication using electrical means
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F15/00—Details of, or accessories for, apparatus of groups G01F1/00 - G01F13/00 insofar as such details or appliances are not adapted to particular types of such apparatus
- G01F15/14—Casings, 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
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.
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 Pending 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)
| 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 |
-
2016
- 2016-10-13 CN CN201610891358.7A patent/CN107941287A/en active Pending
Patent Citations (4)
| 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 |
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| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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Application publication date: 20180420 |