CN202869735U - High-temperature micro-pressure transmitter - Google Patents
High-temperature micro-pressure transmitter Download PDFInfo
- Publication number
- CN202869735U CN202869735U CN 201220450863 CN201220450863U CN202869735U CN 202869735 U CN202869735 U CN 202869735U CN 201220450863 CN201220450863 CN 201220450863 CN 201220450863 U CN201220450863 U CN 201220450863U CN 202869735 U CN202869735 U CN 202869735U
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- pressure
- temperature micro
- high temperature
- circuit board
- micro
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Abstract
The utility model discloses a high-temperature micro-pressure transmitter, comprising a high-temperature micro-pressure core used to monitor medium pressure changes. The high-temperature micro-pressure core is fixedly installed on a tail of an inner cavity of a radiator. A front part of the radiator is provided with a sensing hole connected with the inner cavity. The high-temperature micro-pressure core is connected with a circuit board which can perform correction and distortion compensation on pressure changing signals. The circuit board is fixedly installed on a rear part of the radiator. The above radiator has relatively good heat dissipation effect for medium which passes through the sensing hole and enters inside of the radiator. The medium after heat dissipation contacts with and squeezes the high-temperature micro-pressure core. The high-temperature micro-pressure core transmits the pressure changing signals to the circuit board to correct and compensate the signals, thereby improving measurement accuracy of the high-temperature pressure transmitter.
Description
Technical field
The utility model relates to a kind of pressure unit, particularly measures the transmitter of liquid and gas pressure change in the hot environment.
Background technology
At present, the application of pressure transducer is more and more extensive, the situation that gaging pressure changes under some special environment is more and more, for example: under some high temperature (200 degree or more than) state, require high precision observing and controlling medium micro-pressure to change, rigid reason high owing to temperature and that pressure is little has caused the sensor measurement data inaccurate, easily damage, signal floats greatly, thereby affected and under the condition of high temperature, measured the normal operation that (liquid and gas) micro-pressure changes automatic control system, as: observing and controlling high-temperature boiler the inside high temperature air pressure, the high temperature conduit vapor pressure, high temperature conduit oil pressure etc., because the liquid of high temperature micro-pressure power sensor/transmitter under can't the accurately observing and controlling condition of high temperature and the micro-pressure variation of gas, thereby caused whole micro-pressure variation automatic control system normally to move.
The utility model content
In order to address the above problem, it is a kind of simple in structure that the purpose of this utility model is to provide, and can improve again the pressure unit that measuring media in hot environment (liquid and gas) micro-pressure changes precision.
The utility model for the technical scheme that solves its technical matters and adopt is:
The high temperature micro-pressure power transmitter, comprise the high temperature micro-pressure core body that changes for the monitoring pressure medium, described high temperature micro-pressure core body is fixedly mounted on the inner chamber afterbody of heating radiator, the front portion of heating radiator is provided with the sensing hole with its intracavity inter-connection, the high temperature micro-pressure core body is connected with and can revises circuit board with distortion compensation to pressure change signal, circuit board is fixedly mounted on the rear portion of heating radiator, above-mentioned heating radiator can allow pass sensing hole and enter its inner medium and obtain reasonable radiating effect, medium contact after the heat radiation also is expressed to the high temperature micro-pressure core body, the high temperature micro-pressure core body sends pressure change signal to circuit board and revises and compensate, thereby improves the measuring accuracy of high temperature pressure transmitter.
As improvement of the technical scheme, the rear portion of described heating radiator has been threaded connection support, and circuit board is fixedly mounted on the support, and above-mentioned support can weaken heat on the heating radiator to impact and the injury of circuit board.
As further improvement in the technical proposal; the appearance of described circuit board is socketed with the seal protection sleeve pipe; the seal protection sleeve pipe is connected with the heating radiator rear portion by screw thread; above-mentioned seal protection cover effectively holding circuit plate is avoided the erosion injury of medium, guarantees the normal operation of high temperature pressure transmitter.
The beneficial effects of the utility model are: because the utility model is that the high temperature micro-pressure core body is provided with heating radiator, the medium that will contact and push by heating radiator carries out in advance radiating and cooling, so that the temperature when medium contact and extruding high temperature micro-pressure core body can be too not high, avoid affecting because medium temperature is too high the measuring accuracy of high temperature micro-pressure core body and cause the high temperature micro-pressure core body to damage, simultaneously, the high temperature micro-pressure core body is connected with and can revises circuit board with distortion compensation to pressure change signal, can further improve the measuring accuracy of pressure unit, thereby so that high temperature pressure transmitter can be in hot environment the micro-pressure of measuring media.
Description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
Fig. 1 is surface structure schematic diagram of the present utility model;
Fig. 2 is explosive view of the present utility model;
Fig. 3 is the part drawing of heating radiator in the utility model;
Fig. 4 is the part drawing of the utility model medium-height trestle;
Fig. 5 is the part drawing of seal protection sleeve pipe in the utility model.
Embodiment
Referring to figs. 1 through Fig. 5, the high temperature micro-pressure power transmitter, comprise the high temperature micro-pressure core body 1 that changes for the monitoring pressure medium, described high temperature micro-pressure core body 1 is fixedly mounted on the inner chamber afterbody of heating radiator 2, the above-mentioned high temperature micro-pressure core body 1 preferential inner chamber afterbody that adopts the fire resistant resin rubber seal to be installed in heating radiator 2; The front portion of heating radiator 2 is provided with the sensing hole 20 with its intracavity inter-connection, high temperature micro-pressure core body 1 is connected with and can revises circuit board 3 with distortion compensation to pressure change signal, circuit board 3 is fixedly mounted on the rear portion of heating radiator 2, and the above-mentioned heating radiator 2 preferential good high-quality stainless steel materials of heat radiation that adopt are made.
Further, the rear portion of described heating radiator 2 has been threaded connection support 21, circuit board 3 is fixedly mounted on the support 21, the front portion of above-mentioned support 21 is provided with the outer spiral shell that is connected with heating radiator 2 and spins, the rear portion of support 21 is provided with and hard-wired the first fixed installation holes 210 of circuit board 3, is provided with the second fixed installation hole 30 corresponding with the first fixed installation hole 210 on the circuit board 3.
Further again; the appearance of described circuit board 3 is socketed with seal protection sleeve pipe 4; seal protection sleeve pipe 4 is connected with heating radiator 2 rear portions by screw thread; the above-mentioned seal protection sleeve pipe 4 preferential hollow tubulars that adopt stainless steel material to make; the front portion of seal protection sleeve pipe 4 is provided with the internal thread that is tightly connected with heating radiator 2; the rear portion of seal protection sleeve pipe 4 is connected with resistant to elevated temperatures seal 5; the bottom of seal 5 is provided be used to allowing the electrical lead of circuit board 3 and the through hole 50 that the external world is connected, and the resistant to elevated temperatures plastics of described seal 5 preferential employings are made.
The above only is preferential embodiment of the present utility model, as long as realize that with basic identical means the technical scheme of the utility model purpose all belongs within the protection domain of the present utility model.
Claims (3)
1. high temperature micro-pressure power transmitter, comprise the high temperature micro-pressure core body (1) that changes for the monitoring pressure medium, it is characterized in that: described high temperature micro-pressure core body (1) is fixedly mounted on the inner chamber afterbody of heating radiator (2), the front portion of heating radiator (2) is provided with the sensing hole (20) with its intracavity inter-connection, high temperature micro-pressure core body (1) is connected with and can revises circuit board (3) with distortion compensation to pressure change signal, and circuit board (3) is fixedly mounted on the rear portion of heating radiator (2).
2. high temperature micro-pressure power transmitter according to claim 1, it is characterized in that: the rear portion of described heating radiator (2) has been threaded connection support (21), and circuit board (3) is fixedly mounted on the support (21).
3. high temperature micro-pressure power transmitter according to claim 1 and 2, it is characterized in that: the appearance of described circuit board (3) is socketed with seal protection sleeve pipe (4), and seal protection sleeve pipe (4) is connected with heating radiator (2) rear portion by screw thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220450863 CN202869735U (en) | 2012-09-05 | 2012-09-05 | High-temperature micro-pressure transmitter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220450863 CN202869735U (en) | 2012-09-05 | 2012-09-05 | High-temperature micro-pressure transmitter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202869735U true CN202869735U (en) | 2013-04-10 |
Family
ID=48036445
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220450863 Expired - Fee Related CN202869735U (en) | 2012-09-05 | 2012-09-05 | High-temperature micro-pressure transmitter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202869735U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103759882A (en) * | 2013-12-29 | 2014-04-30 | 中北大学 | Device for testing space external pressure of high-speed aircraft |
| CN104330206A (en) * | 2014-10-16 | 2015-02-04 | 宝鸡百事得控制技术有限公司 | High-temperature sanitary type pressure transmitter |
| CN105486449A (en) * | 2016-01-07 | 2016-04-13 | 无锡莱顿电子有限公司 | High temperature-resistant pressure sensor |
| CN107560785A (en) * | 2017-10-10 | 2018-01-09 | 广西玉柴机器股份有限公司 | The overtemperature protection system of pressure sensor |
| CN107631833A (en) * | 2017-10-17 | 2018-01-26 | 北京中航兴盛测控技术有限公司 | Superhigh temperature pressure sensor and its manufacture method |
-
2012
- 2012-09-05 CN CN 201220450863 patent/CN202869735U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103759882A (en) * | 2013-12-29 | 2014-04-30 | 中北大学 | Device for testing space external pressure of high-speed aircraft |
| CN103759882B (en) * | 2013-12-29 | 2019-05-21 | 中北大学 | High-speed aircraft device for testing space external pressure |
| CN104330206A (en) * | 2014-10-16 | 2015-02-04 | 宝鸡百事得控制技术有限公司 | High-temperature sanitary type pressure transmitter |
| CN105486449A (en) * | 2016-01-07 | 2016-04-13 | 无锡莱顿电子有限公司 | High temperature-resistant pressure sensor |
| CN105486449B (en) * | 2016-01-07 | 2017-11-28 | 无锡莱顿电子有限公司 | High-temperature-resistance pressure sensor |
| CN107560785A (en) * | 2017-10-10 | 2018-01-09 | 广西玉柴机器股份有限公司 | The overtemperature protection system of pressure sensor |
| CN107631833A (en) * | 2017-10-17 | 2018-01-26 | 北京中航兴盛测控技术有限公司 | Superhigh temperature pressure sensor and its manufacture method |
| CN107631833B (en) * | 2017-10-17 | 2023-11-03 | 松诺盟科技有限公司 | Ultra-high temperature pressure sensor and manufacturing method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130410 Termination date: 20130905 |