CN213902721U - Ceramic thick film pressure transmitter - Google Patents
Ceramic thick film pressure transmitter Download PDFInfo
- Publication number
- CN213902721U CN213902721U CN202023179305.3U CN202023179305U CN213902721U CN 213902721 U CN213902721 U CN 213902721U CN 202023179305 U CN202023179305 U CN 202023179305U CN 213902721 U CN213902721 U CN 213902721U
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- diaphragm
- pressure transmitter
- thick film
- film pressure
- membrane
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Abstract
The utility model relates to a pressure transmitter technical field especially relates to a pottery thick film pressure transmitter, and it includes the casing, the inside quiet diaphragm that is provided with of casing and moving the diaphragm, move the diaphragm through set up in the annular packing ring of quiet diaphragm is fixed in quiet diaphragm, quiet diaphragm with the opposite face center of moving the diaphragm all is provided with the electric capacity polar plate, move around the diaphragm with be provided with the sealing washer between the casing, it is the potsherd to move the diaphragm. The utility model discloses it is high to detect the precision, and convenient to use can not corroded with the potsherd of medium contact, has improved the life of instrument greatly.
Description
Technical Field
The utility model relates to a pressure transmitter technical field especially relates to a ceramic thick film pressure transmitter.
Background
The pressure transmitter is mainly used for detecting the pressure of liquid, gas and steam or the depth of the liquid, and the principle is that a detected medium enters the pressure transmitter, so that an internal capacitance diaphragm deflects to change capacitance, and voltage is changed, and pressure is converted into an electric signal; when the medium gets into the instrument, need with instrument component contact, if seal not good can cause the instrument short circuit, cause instrument component corrosion damage after long time of using for a long time especially, and then make the instrument scrap.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to prior art not enough, and provide a pottery thick film pressure transmitter, it adopts anticorrosive pottery as the pressure-bearing component to improve the life-span of instrument.
The utility model provides a technical scheme that its technical problem adopted is: the utility model provides a pottery thick film pressure transmitter, includes the casing, the casing is inside to be provided with the static diaphragm and to move the diaphragm, move the diaphragm through set up in the annular gasket of static diaphragm is fixed in the static diaphragm, the static diaphragm with the opposite face center of moving the diaphragm all is provided with the electric capacity polar plate, move around the diaphragm with be provided with the sealing washer between the casing, it is the potsherd to move the diaphragm.
Further, the shell is provided with a medium inlet at one side of the movable diaphragm.
Further, a flexible hose is connected to the medium inlet.
Further, the housing is an explosion-proof housing.
Furthermore, other structures such as a sensing element and a circuit board for the pressure transmitter are arranged above the static diaphragm and are fixedly sealed in the shell.
The utility model has the advantages that: the utility model provides a pottery thick film pressure transmitter, its includes the casing, the inside quiet diaphragm that is provided with of casing with move the diaphragm, move the diaphragm through set up in the annular gasket of quiet diaphragm is fixed in quiet diaphragm, quiet diaphragm with the opposite face center of moving the diaphragm all is provided with the electric capacity polar plate, move around the diaphragm with be provided with the sealing washer between the casing, it is the potsherd to move the diaphragm. The utility model discloses it is high to detect the precision, and convenient to use can not corroded with the potsherd of medium contact, has improved the life of instrument greatly.
Drawings
Fig. 1 is a schematic structural diagram of a ceramic thick film pressure transmitter of the present invention.
Description of reference numerals:
1-shell, 11-medium inlet, 2-static diaphragm, 3-dynamic diaphragm, 4-ring washer, 5-capacitor plate, 6-sealing ring, 7-flexible hose.
Detailed Description
The following detailed description of the present invention is provided in connection with the accompanying drawings and the embodiments, and is not intended to limit the scope of the invention.
As shown in fig. 1, the ceramic thick film pressure transmitter of the embodiment includes a housing 1, a static diaphragm 2 and a dynamic diaphragm 3 are disposed inside the housing 1, the dynamic diaphragm 3 is fixed to the static diaphragm 2 through an annular gasket 4 disposed on the static diaphragm 2, capacitance plates 5 are disposed at the centers of opposite surfaces of the static diaphragm 2 and the dynamic diaphragm 3, a sealing ring 6 is disposed between the periphery of the dynamic diaphragm 3 and the housing 1, and the dynamic diaphragm 3 is a ceramic plate; the housing 1 is provided with a medium inlet 11 on one side of the movable diaphragm 3.
The utility model relates to a can prevent pressure transmitter of corruption, during the use, wait to examine the medium and follow medium entry 11 gets into casing 1 to be in act on pressure move on the diaphragm 3, make it takes place to warp or the displacement to move diaphragm 3, thereby change move diaphragm 3 with the interval of quiet diaphragm 2 changes the voltage of electric capacity between the two promptly, and medium pressure is big more, the displacement of moving diaphragm 3 is big more, and voltage variation just is big more to realize medium pressure detection.
The movable membrane 3 is made of ceramic materials and has an anti-corrosion effect, and the sealing rings 6 are arranged between the periphery of the movable membrane 3 and the shell 1, so that a medium is prevented from entering the instrument, the service life of the instrument is prolonged, and the instrument is stable. The deviation of the movable diaphragm 3 of the present embodiment is 0.025mm under normal pressure, that is, atmospheric pressure, and the overpressure state only makes the movable diaphragm 3 deviate by 0.1mm during operation, so that the detection accuracy is high, and the housing 1 is an explosion-proof housing, so that the pressure transmitter can be used in all weather.
The medium inlet 11 is connected with a flexible hose 7; other structures such as a sensing element and a circuit board for the pressure transmitter are arranged above the static diaphragm 2 and are fixedly sealed in the shell 1. Therefore, the utility model discloses can fixed mounting use on the pipeline, also can regard as portable instrument to use.
It should be finally noted that the above embodiments are only intended to illustrate the technical solutions of the present invention, and not to limit the scope of the present invention, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present invention can be modified or replaced with equivalents without departing from the spirit and scope of the technical solutions of the present invention.
Claims (5)
1. The utility model provides a ceramic thick film pressure transmitter which characterized in that: the movable membrane type capacitor comprises a shell, wherein a static membrane and a movable membrane are arranged in the shell, the movable membrane is fixed on the static membrane through an annular gasket, the static membrane and the movable membrane are both provided with capacitor plates at the center of opposite surfaces, a sealing ring is arranged around the movable membrane and between the shells, and the movable membrane is a ceramic sheet.
2. The ceramic thick film pressure transmitter of claim 1, wherein: the shell is provided with a medium inlet at one side of the movable diaphragm.
3. The ceramic thick film pressure transmitter of claim 2, wherein: the medium inlet is connected with a flexible hose.
4. The ceramic thick film pressure transmitter of claim 1, wherein: the housing is an explosion-proof housing.
5. The ceramic thick film pressure transmitter of claim 1, wherein: and the sensing element and the circuit board for the pressure transmitter are arranged above the static diaphragm and are fixedly sealed in the shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023179305.3U CN213902721U (en) | 2020-12-25 | 2020-12-25 | Ceramic thick film pressure transmitter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023179305.3U CN213902721U (en) | 2020-12-25 | 2020-12-25 | Ceramic thick film pressure transmitter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213902721U true CN213902721U (en) | 2021-08-06 |
Family
ID=77106238
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023179305.3U Active CN213902721U (en) | 2020-12-25 | 2020-12-25 | Ceramic thick film pressure transmitter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213902721U (en) |
-
2020
- 2020-12-25 CN CN202023179305.3U patent/CN213902721U/en active Active
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Legal Events
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| GR01 | Patent grant | ||
| GR01 | Patent grant |