CN203365041U - Level measuring pressure transmitter for solid particles - Google Patents
Level measuring pressure transmitter for solid particles Download PDFInfo
- Publication number
- CN203365041U CN203365041U CN 201320356214 CN201320356214U CN203365041U CN 203365041 U CN203365041 U CN 203365041U CN 201320356214 CN201320356214 CN 201320356214 CN 201320356214 U CN201320356214 U CN 201320356214U CN 203365041 U CN203365041 U CN 203365041U
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- Prior art keywords
- pressure
- flange
- hole
- gauge stand
- particulate matter
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- Expired - Lifetime
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Abstract
The utility model discloses a level measuring pressure transmitter for solid particles. A standard pressure hole, which is communicated with the outside, is arranged in the bottom part of a gauge base. A pressure sensor is installed on the middle part of the gauge base. The pressure sensor is arranged above the standard pressure hole and is connected with a circuit board inside the gauge base. A measuring flange is installed on the gauge base in a covering manner. The measuring flange is connected with the upper part of the pressure sensor. A pressure transmitting hole is arranged in the center of the measuring flange. The measuring flange is provided with a pressure sensing diaphragm. A pressure transmitting medium is filled between the measuring flange and the pressure sensor. A compaction flange is installed on the measuring flange in a covering manner. The compaction flange compresses the pressure sensing diaphragm tightly to the measuring flange. A communication interface is installed on the side wall of the gauge base. The communication interface is connected with the circuit board through a lead. By adopting the level measuring pressure transmitter, the size of a solid particle heap can be obtained eventually, and on-line monitoring of the solid particle heap can be realized.
Description
Technical field
The utility model belongs to the surveying instrument technical field, specifically, relates in particular to a kind of solid particulate matter level gauging pressure unit.
Background technology
Utilize at present pressure to carry out the level gauging that is mainly used for of level gauging, actually rare for level gauging.The existing product that utilizes the static pressure principle to measure liquid level mostly is pressure-type liquidometer, wherein in commercial production widespread use liquid level transducer of differential pressure type arranged, it is mainly as sensing element by diffuse si that static pressure type is measured, when by the wall pressure effect thereon the time, piezoresistive effect due to the diffuse si sensor, the strain resistor resistance that makes it produce strain and cause being diffused on the Gordon Adams Bridge road changes, thereby cause that the bridge road is unbalance and export corresponding voltage signal, differential amplification through integrated operational amplifier, again by the V/I voltage current adapter, convert the DC current signal output with the linear corresponding relation of liquid-level pressure of measured medium to.During measurement, change is sent head to put into the container bottom that contains liquid, the pressure that liquid in container produces makes to become and send head to obtain a pressure signal, this signal is proportional to liquid level, and pressure signal, through the transmitter output current signal, measures level value by current signal.But, this fluid level transmitter can only be measured the little and pure liquid medium of viscosity, and the differential pressure type liquid level transmitter is when measuring, its change send the liquid of a position also will keep static, otherwise liquid send washing away of head to fluctuate by build-up of pressure to change, cause fluid level transmitter to be measured and larger error occurs, simultaneously, current sensor just more can not to the measurement of solid position, and more multi-field all the needs measures accurately to the thing position of particle, as silo etc., the supvr needs silo grain inside to be monitored at any time, thing position by measuring grain in silo to grain the number calculated, thereby can effectively manage each silo.
The utility model content
The utility model purpose is to provide a kind of novelty simple in structure, can carry out to the thing position of solid particulate matter the solid particulate matter level gauging pressure unit of Measurement accuracy.
For achieving the above object, the utility model provides a kind of solid particulate matter level gauging pressure unit, its main points are: comprise gauge stand, this gauge stand bottom has the standard communicated with the external world and presses hole, in this gauge stand center, pressure transducer is installed, this pressure transducer is positioned at described standard and presses the top, hole, described pressure transducer is connected with the circuit board that is positioned at described gauge stand, at described gauge stand upper cover, the measurement flange is housed, this is measured flange and is connected with described pressure transducer top, described measurement flange central authorities have pressure transmission hole, be provided with pressure-sensitive diaphragm on this measurement flange, be filled with pressure transmitting medium between described measurement flange and described pressure transducer, described measurement flange upper cover is equipped with supported flange, this supported flange is pressed on described pressure-sensitive diaphragm on described measurement flange, on described gauge stand sidewall, communication connector is installed, this communication connector is connected with described circuit board through wire.
Adopt above structure, during measurement, the utility model is placed under the particle heap that needs to measure, particle is pressed on pressure-sensitive diaphragm, this pressure-sensitive diaphragm passes to pressure transducer by pressure transmitting medium by pressure, because being provided with standard, this pressure transducer below presses hole, make pressure transducer form up and down differential pressure, this pressure reduction is exported signal by circuit board and communication connector, thereby record out the pressure of particle, the position that can calculate particle by mathematical model is high, place a plurality of the utility model under a particle heap, by multimetering, finally can calculate the volume of particle heap, realize the on-line monitoring of particle heap.
As preferably: on described gauge stand sidewall, Temperature Humidity Sensor is installed, this Temperature Humidity Sensor is connected with described circuit board through wire, adopts above structure, can carry out Real-Time Monitoring to the humiture in particle, thereby better realizes the management to particle.
As preferably: have on described measurement flange and run through the oil-filled hole of measuring the flange upper and lower end face, this oil-filled hole communicates with the cavity that described pressure-sensitive diaphragm and measurement flange form, adopt above structure, can realize reliably the filling to pressure transmitting medium, guarantee measuring accuracy.
As preferably: described oil-filled hole is up-small and down-big bellmouth, in this oil-filled hole, ball sealer is housed, and so can realize pressure transmitting medium is stopped up, thereby pressure transmitting medium is limited in cavity.
As preferably: at the described oil-filled blanking cover that mounted cover in the air, this blanking cover is limited in described ball sealer described oil-filled aerial, so can realize the stability of pressure transmitting medium, has improved the precision and stability of measuring.
As preferably: at described gauge stand and measure between flange the first O-ring seal is installed, thereby realize the sealing to the cavity of gauge stand, improve measuring accuracy.
As preferably: between described measurement flange and supported flange, the second O-ring seal is installed, thereby realizes the sealing to the cavity of gauge stand, improve measuring accuracy.
As preferably: the cavity that described measurement flange and described pressure transducer surround is for falling " T " font cavity, the vertical portion of this cavity is described pressure transmission hole, be full of described pressure transmitting medium in described cavity, this pressure transmitting medium is covered with the upper surface of described pressure transducer, adopt above structure, can increase the contact area of pressure transmitting medium and pressure transducer, thereby improve the precision of measuring.
The beneficial effects of the utility model are: the utility model is placed under the particle heap that needs to measure, particle is pressed on pressure-sensitive diaphragm, this pressure-sensitive diaphragm passes to pressure transducer by pressure transmitting medium by pressure, because being provided with standard, this pressure transducer below presses hole, make pressure transducer form up and down differential pressure, this pressure reduction is exported signal by circuit board and communication connector, thereby record out the pressure of particle, the position that can calculate particle by mathematical model is high, place a plurality of the utility model under a particle heap, by multimetering, finally can calculate the volume of particle heap, realize the on-line monitoring of particle heap, simultaneously, the utility model can also be monitored in real time to the humiture of particle heap.
The accompanying drawing explanation
Fig. 1 is complete section structural representation of the present utility model;
Fig. 2 is blast structural representation of the present utility model.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described in further detail:
A kind of solid particulate matter level gauging pressure unit as depicted in figs. 1 and 2, by gauge stand 1, pressure transducer 2, measure flange 3, pressure-sensitive diaphragm 4, supported flange 5, pressure transmitting medium 6, communication connector 7, the formations such as Temperature Humidity Sensor 8 and circuit board 13, wherein said gauge stand 1 bottom has the standard communicated with the external world and presses hole 1a, in this gauge stand 1 center, pressure transducer 2 is installed, this pressure transducer 2 is positioned at described standard and presses hole 1a top, described pressure transducer 2 is fixed with described gauge stand 1 sealed bottom, this pressure transducer 2 is connected with the circuit board 13 that is positioned at described gauge stand 1, be equipped with and measure flange 3 at described gauge stand 1 upper cover, described circuit board 13 is fixing with measurement flange 3 by bolt, this is measured flange 3 and is connected with described pressure transducer 2 tops, described measurement flange 3 central authorities have pressure transmission hole 3a, be provided with pressure-sensitive diaphragm 4 on this measurement flange 3, be filled with pressure transmitting medium 6 between described measurement flange 3 and described pressure transducer 2, described measurement flange 3 upper covers are equipped with supported flange 5, this supported flange 5 is pressed on described pressure-sensitive diaphragm 4 on described measurement flange 3, on described gauge stand 1 sidewall, communication connector 7 is installed, this communication connector 7 is connected with described circuit board 13 through wire.
Refer to Fig. 1: on described gauge stand 1 sidewall, Temperature Humidity Sensor 8 is installed, this Temperature Humidity Sensor 8 is connected with described circuit board 7 through wire, have on described measurement flange 3 and run through the oil-filled hole 3b that measures flange 3 upper and lower end faces, this oil-filled hole 3b communicates with the cavity that described pressure-sensitive diaphragm 4 and measurement flange 3 form, described oil-filled hole 3b is up-small and down-big bellmouth, in this oil-filled hole 3b, ball sealer 9 is housed, at described oil-filled empty 3b middle cover, blanking cover 10 is housed, this blanking cover 10 is limited in described ball sealer 9 in described oil-filled empty 3b.
In Fig. 1, it can also be seen that: between described gauge stand 1 and measurement flange 3, the first O-ring seal 11 is installed, the second O-ring seal 12 is installed between described measurement flange 3 and supported flange 5, the cavity that described measurement flange 3 and described pressure transducer 2 surround is for falling " T " font cavity, the vertical portion of this cavity is described pressure transmission hole 3a, be full of described pressure transmitting medium 6 in described cavity, this pressure transmitting medium 6 is covered with the upper surface of described pressure transducer 2.
Claims (8)
1. a solid particulate matter level gauging pressure unit, it is characterized in that: comprise gauge stand (1), this gauge stand (1) bottom has the standard communicated with the external world and presses hole (1a), in this gauge stand (1) center, pressure transducer (2) is installed, this pressure transducer (2) is positioned at described standard and presses top, hole (1a), described pressure transducer (2) is connected with the circuit board that is positioned at described gauge stand (1) (13), be equipped with and measure flange (3) at described gauge stand (1) upper cover, this is measured flange (3) and is connected with described pressure transducer (2) top, described measurement flange (3) central authorities have pressure transmission hole (3a), be provided with pressure-sensitive diaphragm (4) on this measurement flange (3), be filled with pressure transmitting medium (6) between described measurement flange (3) and described pressure transducer (2), described measurement flange (3) upper cover is equipped with supported flange (5), this supported flange (5) is pressed on described pressure-sensitive diaphragm (4) on described measurement flange (3), on described gauge stand (1) sidewall, communication connector (7) is installed, this communication connector (7) is connected with described circuit board (13) through wire.
2. a kind of solid particulate matter level gauging pressure unit according to claim 1, it is characterized in that: on described gauge stand (1) sidewall, Temperature Humidity Sensor (8) is installed, this Temperature Humidity Sensor (8) is connected with described circuit board (7) through wire.
3. a kind of solid particulate matter level gauging pressure unit according to claim 1, it is characterized in that: have on described measurement flange (3) and run through the oil-filled hole (3b) of measuring flange (3) upper and lower end face, this oil-filled hole (3b) communicates with the cavity that described pressure-sensitive diaphragm (4) and measurement flange (3) form.
4. a kind of solid particulate matter level gauging pressure unit according to claim 3 is characterized in that: described oil-filled hole (3b) is up-small and down-big bellmouth, in this oil-filled hole (3b), ball sealer (9) is housed.
5. a kind of solid particulate matter level gauging pressure unit according to claim 4, it is characterized in that: in described oil-filled hole (3b), middle cover is equipped with blanking cover (10), and this blanking cover (10) is limited in described ball sealer (9) in described oil-filled hole (3b).
6. a kind of solid particulate matter level gauging pressure unit according to claim 1, is characterized in that: between described gauge stand (1) and measurement flange (3), the first O-ring seal (11) is installed.
7. a kind of solid particulate matter level gauging pressure unit according to claim 1, is characterized in that: between described measurement flange (3) and supported flange (5), the second O-ring seal (12) is installed.
8. a kind of solid particulate matter level gauging pressure unit according to claim 3, it is characterized in that: the cavity that described measurement flange (3) and described pressure transducer (2) surround is for falling " T " font cavity, the vertical portion of this cavity is described pressure transmission hole (3a), be full of described pressure transmitting medium (6) in described cavity, this pressure transmitting medium (6) is covered with the upper surface of described pressure transducer (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320356214 CN203365041U (en) | 2013-06-20 | 2013-06-20 | Level measuring pressure transmitter for solid particles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320356214 CN203365041U (en) | 2013-06-20 | 2013-06-20 | Level measuring pressure transmitter for solid particles |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203365041U true CN203365041U (en) | 2013-12-25 |
Family
ID=49812787
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320356214 Expired - Lifetime CN203365041U (en) | 2013-06-20 | 2013-06-20 | Level measuring pressure transmitter for solid particles |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203365041U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103353371A (en) * | 2013-06-20 | 2013-10-16 | 重庆市伟岸测器制造股份有限公司 | Solid particle level measurement pressure transmitter |
-
2013
- 2013-06-20 CN CN 201320356214 patent/CN203365041U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103353371A (en) * | 2013-06-20 | 2013-10-16 | 重庆市伟岸测器制造股份有限公司 | Solid particle level measurement pressure transmitter |
| CN103353371B (en) * | 2013-06-20 | 2016-01-20 | 重庆市伟岸测器制造股份有限公司 | Solid particle level measurement pressure transmitter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131225 |
|
| CX01 | Expiry of patent term |