CN103743520A - Pressure sensing device applied to high voltage environment - Google Patents
Pressure sensing device applied to high voltage environment Download PDFInfo
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- CN103743520A CN103743520A CN201410035744.7A CN201410035744A CN103743520A CN 103743520 A CN103743520 A CN 103743520A CN 201410035744 A CN201410035744 A CN 201410035744A CN 103743520 A CN103743520 A CN 103743520A
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Abstract
The invention relates to a pressure sensing device, which is used for measuring pressure of flow media under a high voltage environment, and comprises a pressure sensor, an interface piece, an isolation piece and insulation liquid, wherein the pressure sensor is provided with a pressure probe, the interface piece is provided with a through hole, the isolation piece is used for isolating the flow media, the pressure probe and the isolation piece are respectively arranged at the two ends of the interface piece and are oppositely arranged for jointly forming a sealing cavity for containing the insulation liquid, the sealing cavity is filled with the insulation liquid for enabling the pressure probe and the flow media to be in mutual electric insulation, and when the pressure of the flow media is measured, the interface piece is arranged on a carrier for containing the flow media, the isolation piece is contacted with the flow media, and the pressure probe acquires the pressure of the flow media through the insulation liquid and the isolation piece. The pressure sensing device is applicable to measuring for the pressure of flowing liquid or melt under the high voltage environment, and is good in insulation and stable in measurement.
Description
Technical field
The present invention relates to a kind of pressure sensor device that is applied to high voltage environment, particularly relate to the pressure sensor device of measuring the pressure of flow media under a kind of high voltage environment.
Background technology
At oil, chemical industry, alkaline, chemical fibre, pharmacy, in the commercial production such as food, to medium (solution, melt) pressure survey conventionally can run into high temperature, high pressure, high corrosion, the problems such as high viscosity, although these problems successfully solve in modern industry, but, when in the situation of measured medium in high-voltage electric field (several ten thousand volts arrange hundreds of thousands volt), having the pressure transducer of wire or transmitter etc. all can be by high voltage induction loop, because circuit general in prior art is withstand voltage all only below kilovolt, can not meet the job requirement of high voltage environment, if by the application of installation of gaging pressure in prior art in high voltage environment, obviously will bring significant problem to commercial production, setting causes catastrophic consequence.
Summary of the invention
The object of the invention is for the deficiencies in the prior art, a kind of pressure sensor device that is applied to high voltage environment is provided, to meet the user demand of measuring the pressure of flow media under high voltage environment.
A kind of pressure sensor device, for measuring the pressure of high voltage environment current downflow medium, it comprises having the pressure transducer of pressure probe, the mouthpiece with through hole, the separator of isolating described flow media and iknsulating liquid, described pressure probe and described separator are arranged at respectively the two ends of described mouthpiece, and be oppositely arranged, the common annular seal space that forms an accommodating described iknsulating liquid, described iknsulating liquid is full of described annular seal space, makes described pressure probe and described flow media electrically insulated from one another; While measuring the pressure of described flow media, described mouthpiece is arranged on the carrier of accommodating described flow media, described separator and described flow media contact, and described pressure probe obtains the pressure of described flow media by described iknsulating liquid and described separator.
In one embodiment of the invention, described mouthpiece is tubular structure, and described pressure probe and described separator are relatively arranged in the through hole of described mouthpiece.
In one embodiment of the invention, described pressure probe and described through hole whorl coordinate.
In one embodiment of the invention, between described pressure probe and described mouthpiece, be provided with O-ring seal.
In one embodiment of the invention, the material of described mouthpiece is pottery or teflon.
In one embodiment of the invention, described separator is flexible sheet, the radially setting of its through hole along described mouthpiece.
In one embodiment of the invention, described separator is piston, and through hole interference fit or the screw thread of itself and described mouthpiece closely cooperate.
In one embodiment of the invention, described pressure transducer ground connection.
In one embodiment of the invention, also comprise the base being fixedly installed on described carrier, described base has accommodating described mouthpiece and is communicated with the receiving opening of described pipeline or casing, matching in one end that described separator is set in described receiving opening and described mouthpiece, and realizes sealing by O-ring seal.
In one embodiment of the invention, the threaded one end that described separator is set in described receiving opening and described mouthpiece coordinates.
Beneficial effect
Described pressure sensor device provided by the invention utilizes the setting of mouthpiece, separator and iknsulating liquid, by iknsulating liquid, make electrically insulated from one another between pressure probe and flow media, there are good insulating property, can meet the user demand of measuring the pressure of flow media (as the liquid in pipeline or casing or melt) under high voltage environment, and Measurement sensibility.
Accompanying drawing explanation
Fig. 1 is the structural representation of pressure sensor device provided by the invention.
Embodiment
Below in conjunction with embodiment, further set forth the present invention.Should be understood that these embodiment are only not used in and limit the scope of the invention for the present invention is described.In addition should be understood that those skilled in the art can make various changes or modifications the present invention after having read the content of the present invention's instruction, these equivalent form of values fall within the application's appended claims limited range equally.
Refer to Fig. 1, one embodiment of the invention provides a kind of pressure sensor device, for measuring high voltage environment current downflow medium 9(as the liquid in pipeline or casing or melt) pressure, it comprises pressure transducer 1, mouthpiece 2, separator 5 and iknsulating liquid 3.Described pressure transducer 1 has a pressure probe (figure does not indicate), and described mouthpiece 2 has a through hole, and described separator 5 is for isolating described flow media 9, and described iknsulating liquid is used for making described pressure probe and described flow media 9 electrically insulated from one another.Described pressure probe and described separator 5 are arranged at respectively the two ends of described mouthpiece 2, and be oppositely arranged, the common annular seal space (figure does not indicate) that forms an accommodating described iknsulating liquid 3, described iknsulating liquid 3 is full of described annular seal space, described pressure probe and described flow media 9 are separated, reach the effect that makes described pressure probe and described flow media 9 electrically insulated from one another.While measuring the pressure of described flow media 9, described mouthpiece 2 is arranged on the carrier (as pipeline or casing) of accommodating described flow media 9, described separator 5 and described flow media 9 contact, and described pressure probe obtains the pressure of described flow media 9 by described iknsulating liquid 3 and described separator 5.
Be understandable that, described pressure transducer 1 can also comprise the dial plate (figure does not indicate) of the pressure for showing described flow media 9, and it is connected with described pressure probe, and described pressure transducer 1 all needs to carry out school zero processing before each use.In the present embodiment, described pressure transducer 1, by wire ground connection, can improve the safety in utilization of described pressure transducer 1 thus.
In the present embodiment, described mouthpiece 2 is tubular structure, and described pressure probe and described separator 5 are relatively arranged in the through hole of described mouthpiece 2.In the present embodiment, described mouthpiece 2 is preferably cylindrical structure, i.e. hollow cylinder body structure certainly, is not limited to the present embodiment, can be also hollow rectangular structure or other structures, specifically can design according to the actual requirements.
Be understandable that, described pressure probe and described separator 5 also can not be arranged in described through hole, and be arranged at the both ends of the surface of described mouthpiece 2, as long as described pressure probe and described separator 5 are oppositely arranged, can jointly form the annular seal space of an accommodating described iknsulating liquid 3.
Preferably, described pressure probe and described through hole whorl coordinate, and in the present embodiment, the outside surface of described pressure probe is provided with external thread, and the inside surface of described through hole is provided with the internal thread of thinking engagement with described external thread.Further, for guaranteeing the sealing of described annular seal space, avoid the leakage of described iknsulating liquid 3, between described pressure probe and described mouthpiece 2, be provided with O-ring seal (figure does not indicate), described O-ring seal is arranged between the outside surface of described pressure probe and the inside surface of described through hole, certainly, is not limited to this, described O-ring seal also can design according to the concrete fit structure of described pressure probe and described through hole, as long as can guarantee the sealing of described annular seal space.
In the present embodiment, the material of described mouthpiece 2 is pottery or teflon.
In the present embodiment, described separator 5 is flexible sheet, the radially setting of its through hole along described mouthpiece 2, and thus, described separator 5 can be out of shape with the inside and outside differential pressure of described annular seal space.Certainly, described separator 5 is not limited to the present embodiment, and described separator 5 can be also piston, and through hole interference fit or the screw thread of itself and described mouthpiece 2 closely cooperate, as long as can realize the described flow media 9 of isolation, and jointly form described annular seal space with described pressure probe.
Further, described pressure sensor device also comprises the base 4 being fixedly installed on described carrier, described base 4 has accommodating described mouthpiece 2 and is communicated with the receiving opening of described carrier (figure does not indicate), matching in one end that described separator 5 is set in described receiving opening and described mouthpiece 2, and realizes sealing by O-ring seal.In the present embodiment, described receiving opening is staircase structure, one end that described separator 5 is set in described mouthpiece 2 is arranged on the step of described receiving opening, and the threaded one end that described separator 5 is set in described receiving opening and described mouthpiece 2 coordinates, and described O-ring seal is arranged between the end face of described mouthpiece 2 and the step surface of described receiving opening.
In the present embodiment, described base 4 is fixedly welded on described carrier.Be understandable that, by being welded and fixed, can also guarantee the sealing between described base 4 and described carrier.
Following the present invention is by embodiment, take the pressure of the interior mobile different liquids of measuring channel 8 as example, describes.
Embodiment 1
Described pressure sensor device is arranged to pipeline 8, and carries out school zero.The positive high voltage of a 35kv is set on pipeline 8, polyvinyl alcohol (PVA)/dimethyl sulphoxide solution of 10% is pumped in pipeline 8, solution temperature is 80 ℃, the power that pump is set can sense pressure transducer 1, now, when solution 9 flows in pipeline 8, can read manometric reading is 0.2MPa; The power that continues to strengthen pump, making manometric reading is 0.4MPa; The power that continues to increase pump can make manometric reading be increased to 10MPa always.Finally adjusting to pressure gauge reading is 5MPa, and maintains 48 hours, and tensimeter reaction is normal, and each accessory does not damage, while cutting off pump, and tensimeter automatic clear.Thus, illustrate that described pressure sensor device utilizes the setting of mouthpiece 2, separator 5 and iknsulating liquid 3, by iknsulating liquid 3, make electrically insulated from one another between pressure probe and fluent solution, there are good insulating property, can meet the user demand of measuring the pressure of working fluid under high voltage environment, and Measurement sensibility.
Described pressure sensor device is arranged to pipeline 8, and carries out school zero.The negative high voltage of a 40kv is set on pipeline or casing 8, PE melt is pumped in pipeline 8, solution temperature is 250 ℃, the power that pump is set can sense pressure transducer 1, now, when melt 9 flows in pipeline 8, can read manometric reading is 3MPa; The power that continues to strengthen pump, making manometric reading is 7MPa; The power that continues to increase pump can make manometric reading be increased to 17MPa always.Finally adjusting to pressure gauge reading is 14MPa, and maintains 48 hours, and tensimeter reaction is normal, and each accessory does not damage, while cutting off pump, and tensimeter automatic clear.Thus, illustrate that described pressure sensor device utilizes the setting of mouthpiece 2, separator 5 and iknsulating liquid 3, by iknsulating liquid 3, make electrically insulated from one another between pressure probe and fluent solution, there are good insulating property, can meet the user demand of measuring the pressure of working fluid under high voltage environment, and Measurement sensibility.
With respect to prior art, described pressure sensor device utilizes the setting of mouthpiece 2, separator 5 and iknsulating liquid 3, by iknsulating liquid 3, make electrically insulated from one another between pressure probe and flow media 9, there are good insulating property, can meet under high voltage environment and measure flow media 9(as the liquid in pipeline or case or melt) the user demand of pressure, and Measurement sensibility.
The above, only embodiments of the invention, not the present invention is done to any pro forma restriction, although the present invention discloses as above with embodiment, but not in order to limit the present invention, any those skilled in the art, do not departing within the scope of technical solution of the present invention, when can utilizing the technology contents of above-mentioned announcement to make a little change or being modified to the equivalent embodiment of equivalent variations, in every case be not depart from technical solution of the present invention content, any simple modification of above embodiment being done according to technical spirit of the present invention, equivalent variations and modification, all still belong in the scope of technical solution of the present invention.
Claims (10)
1. a pressure sensor device, for measuring the pressure of high voltage environment current downflow medium, it is characterized in that, comprise and there is the pressure transducer of pressure probe, the mouthpiece with through hole, the separator of isolating described flow media and iknsulating liquid, described pressure probe and described separator are arranged at respectively the two ends of described mouthpiece, and be oppositely arranged, the common annular seal space that forms an accommodating described iknsulating liquid, described iknsulating liquid is full of described annular seal space, makes described pressure probe and described flow media electrically insulated from one another; While measuring the pressure of described flow media, described mouthpiece is arranged on the carrier of accommodating described flow media, described separator and described flow media contact, and described pressure probe obtains the pressure of described flow media by described iknsulating liquid and described separator.
2. pressure sensor device as claimed in claim 1, is characterized in that, described mouthpiece is tubular structure, and described pressure probe and described separator are relatively arranged in the through hole of described mouthpiece.
3. pressure sensor device as claimed in claim 2, is characterized in that, described pressure probe and described through hole whorl coordinate.
4. pressure sensor device as claimed in claim 1, is characterized in that, between described pressure probe and described mouthpiece, is provided with O-ring seal.
5. pressure sensor device as claimed in claim 1, is characterized in that, the material of described mouthpiece is pottery or teflon.
6. pressure sensor device as claimed in claim 1, is characterized in that, described separator is flexible sheet, the radially setting of its through hole along described mouthpiece.
7. pressure sensor device as claimed in claim 1, is characterized in that, described separator is piston, and through hole interference fit or the screw thread of itself and described mouthpiece closely cooperate.
8. pressure sensor device as claimed in claim 1, is characterized in that, described pressure transducer ground connection.
9. the pressure sensor device as described in claim 1～8 any one, it is characterized in that, also comprise the base being fixedly installed on described carrier, described base has accommodating described mouthpiece and is communicated with the receiving opening of described pipeline or casing, matching in one end that described separator is set in described receiving opening and described mouthpiece, and realizes sealing by O-ring seal.
10. pressure sensor device as claimed in claim 9, is characterized in that, the threaded one end that described separator is set in described receiving opening and described mouthpiece coordinates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410035744.7A CN103743520A (en) | 2013-01-30 | 2014-01-24 | Pressure sensing device applied to high voltage environment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201310034495 CN103148974A (en) | 2013-01-30 | 2013-01-30 | Pressure sensing device applied in high-voltage environment |
| CN201310034495.5 | 2013-01-30 | ||
| CN201410035744.7A CN103743520A (en) | 2013-01-30 | 2014-01-24 | Pressure sensing device applied to high voltage environment |
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| CN103743520A true CN103743520A (en) | 2014-04-23 |
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| CN 201310034495 Pending CN103148974A (en) | 2013-01-30 | 2013-01-30 | Pressure sensing device applied in high-voltage environment |
| CN201410035744.7A Pending CN103743520A (en) | 2013-01-30 | 2014-01-24 | Pressure sensing device applied to high voltage environment |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105546113A (en) * | 2016-01-27 | 2016-05-04 | 常州罗盘星检测科技有限公司 | Sealing structure and machining technology thereof |
| CN107084813A (en) * | 2016-02-16 | 2017-08-22 | 株式会社不二工机 | Pressure sensing cell and the pressure sensor using the pressure sensing cell |
| CN108680460A (en) * | 2018-07-06 | 2018-10-19 | 曲靖伯通智联商贸有限公司 | A kind of split type gravimetre and its measurement method |
| CN110849540A (en) * | 2019-11-27 | 2020-02-28 | 中国航空工业集团公司北京长城计量测试技术研究所 | Thin film type liquid medium isolation device |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109000844B (en) * | 2018-06-14 | 2020-11-06 | 王志华 | Pipeline pressure measuring device for thermal power plant |
| CN112326095B (en) * | 2020-11-03 | 2022-05-20 | 安徽安广电气有限公司 | Monocrystalline silicon pressure transmitter with good waterproof performance |
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| CN2835970Y (en) * | 2005-10-20 | 2006-11-08 | 上海光华仪表有限公司 | Sealing structure for measurement component of nuclear safety level capacitive differential pressure/pressure transmitter |
| CN101097166A (en) * | 2006-06-26 | 2008-01-02 | 阮志成 | Insulation type IC pressure sensing device |
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| CN101968392A (en) * | 2010-10-27 | 2011-02-09 | 吴传仪 | High-pressure isolation device for pressure transmitter |
| CN201885844U (en) * | 2010-10-28 | 2011-06-29 | 瓮福（集团）有限责任公司 | Pressure measurement device for pulsatory high-pressure corrosive medium |
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2013
- 2013-01-30 CN CN 201310034495 patent/CN103148974A/en active Pending
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- 2014-01-24 CN CN201410035744.7A patent/CN103743520A/en active Pending
Patent Citations (6)
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| CN2835970Y (en) * | 2005-10-20 | 2006-11-08 | 上海光华仪表有限公司 | Sealing structure for measurement component of nuclear safety level capacitive differential pressure/pressure transmitter |
| CN101097166A (en) * | 2006-06-26 | 2008-01-02 | 阮志成 | Insulation type IC pressure sensing device |
| CN201016825Y (en) * | 2006-12-27 | 2008-02-06 | 王天 | Cement mortar injection pressure measuring device |
| CN101968392A (en) * | 2010-10-27 | 2011-02-09 | 吴传仪 | High-pressure isolation device for pressure transmitter |
| CN201885844U (en) * | 2010-10-28 | 2011-06-29 | 瓮福（集团）有限责任公司 | Pressure measurement device for pulsatory high-pressure corrosive medium |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105546113A (en) * | 2016-01-27 | 2016-05-04 | 常州罗盘星检测科技有限公司 | Sealing structure and machining technology thereof |
| CN105546113B (en) * | 2016-01-27 | 2017-12-26 | 常州罗盘星检测科技有限公司 | A kind of sealing structure and its processing technology |
| CN107084813A (en) * | 2016-02-16 | 2017-08-22 | 株式会社不二工机 | Pressure sensing cell and the pressure sensor using the pressure sensing cell |
| CN108680460A (en) * | 2018-07-06 | 2018-10-19 | 曲靖伯通智联商贸有限公司 | A kind of split type gravimetre and its measurement method |
| CN108680460B (en) * | 2018-07-06 | 2024-05-07 | 曲靖伯通智联商贸有限公司 | Split type liquid density measuring meter and measuring method thereof |
| CN110849540A (en) * | 2019-11-27 | 2020-02-28 | 中国航空工业集团公司北京长城计量测试技术研究所 | Thin film type liquid medium isolation device |
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| CN103148974A (en) | 2013-06-12 |
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Application publication date: 20140423 |