CN204679204U - A kind of pressure unit - Google Patents
A kind of pressure unit Download PDFInfo
- Publication number
- CN204679204U CN204679204U CN201520388575.5U CN201520388575U CN204679204U CN 204679204 U CN204679204 U CN 204679204U CN 201520388575 U CN201520388575 U CN 201520388575U CN 204679204 U CN204679204 U CN 204679204U
- Authority
- CN
- China
- Prior art keywords
- core body
- fluid conduit
- conduit systems
- pressure
- pressure seat
- 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.)
- Expired - Fee Related
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- Measuring Fluid Pressure (AREA)
Abstract
The utility model discloses a kind of pressure unit, comprise connector, connector mount pad, housing, pressure seat, core body, briquetting, fluid conduit systems and pulse buffer, described connector is connected with housing upper end by unitor mount pad, described housing lower end connects pressure seat, pressure seat arranges core body, pressure seat is bonding with glassy layer with between core body, briquetting is provided with above described core body, fluid conduit systems is provided with below core body, described fluid conduit systems one end is provided with diaphragm, and the other end is connected with pulse buffer.Pressure unit of the present utility model, good sealing effect, good anti-vibration, long service life, good in low temperature pressurization lower seal performance, avoid leaking, avoid different measuring media to need the problem of O-ring seal more, be applicable to rugged environment.
Description
Technical field
The utility model relates to transmitter technical field, particularly relates to a kind of pressure unit.
Background technology
Pressure unit refers to export the pressure transducer into standard signal, is a kind ofly to accept the instrument that pressure variations is converted to standard output signals in proportion.The physical pressure parameter such as gas, liquid that side pressing member sensor can be experienced by it changes the electric signal of standard into, carries out measuring, indicating and procedure regulation to supply the secondary instruments such as indicator alarm, registering instrument, regulator.Pressure unit is a kind of sensor the most conventional in industrial practice, it is widely used in various industrial automatic control environment, relates to numerous industries such as water conservancy and hydropower, railway traffic, intelligent building, production automatic control, Aero-Space, military project, petrochemical industry, oil well, electric power, boats and ships, lathe, pipeline.
Current pressure unit adopts multiple O type seal with elastometic washer core body, because the principal ingredient of O type rubber ring is rubber, rubber in high temperature environments volatile go out oxious component, at low ambient temperatures, material easily goes bad, and occurs contractingization phenomenon.Simultaneously because the media compatibility sex expression of rubber is bad, need to change different O type circles according to the difference of measuring media, change trouble.Therefore adopt the seal with elastometic washer of O type, sealing is poor, and cost is high, is easy to the problem occurring being corroded, the damage of build-up of pressure transmitter, the accuracy of impact measurement when being in oils and corrosive liquid environment for a long time.In addition, the diaphragm of traditional pressure unit is circular metal flat diaphragm, is fixed by welding on fluid conduit systems, and flat diaphragm and tube wall are in vertical state, junction structural strain is very large, be typical stress concentration point, when in pressure-loaded and flat diaphragm, the circumference of flat diaphragm can produce stress and concentrate, test result is made to produce comparatively big error, when stress concentration phenomenon is serious, may diaphragm be damaged, damage pressure transformer.
Utility model content
The purpose of this utility model there is provided a kind of pressure unit, good sealing effect, good anti-vibration, long service life, good in low temperature pressurization lower seal performance, avoids leaking, avoids different measuring media to need the problem of O-ring seal more, be applicable to rugged environment.
The technical solution adopted in the utility model is as follows:
A kind of pressure unit, comprise connector, connector mount pad, housing, pressure seat, core body, briquetting, fluid conduit systems and pulse buffer, described connector is connected with housing upper end by unitor mount pad, described housing lower end connects pressure seat, and pressure seat arranges core body, and pressure seat is bonding with glassy layer with between core body, briquetting is provided with above described core body, be provided with fluid conduit systems below core body, described fluid conduit systems one end is provided with diaphragm, and the other end is connected with pulse buffer.
Described glassy layer is the glass material obtained after sintering.
Described diaphragm side is plane, and opposite side is the concave plane being provided with band circular arc chamfering, and described fluid conduit systems is arranged at side, concave plane.Diaphragm side is set to the concave plane of being with circular arc chamfering, make diaphragm edge structure thickening on the one hand, increase with the contact area of fluid conduit systems, thus be conducive to improving the integrally-built intensity of diaphragm, on the other hand, make between diaphragm and fluid conduit systems inwall, to there is structural mitigation transition, be conducive to improving pressure unit sensitivity, linear stable degree and measuring accuracy.
Compared with the prior art, the beneficial effects of the utility model are as follows:
Pressure unit of the present invention is by connecting pressure seat in housing lower end, pressure seat arranges core body, pressure seat is bonding with glassy layer with between core body, employing glassy layer is bonding, during due to glass-to-metal seal, be infiltrated mutually by glass metal and metal oxide layer, form mixed chemical key, this chemical bonds, much larger than the pressure be subject to when adopting O type circle to make seal, makes pressure unit have good withstand voltage and compressive strength.Meanwhile, glass is a kind of nonmetallic materials, has higher softening point temperature, and it can not discharge any oxious component when using in hot environment, under low-temperature condition state, chemistry, physical characteristics are stablized, there is very strong anticorrosion, be applicable to rugged environment; Be provided with briquetting above described core body, briquetting can make core body position fix, and strengthens its vibration resistance, and meanwhile, briquetting can ensure the sealing of pressure unit inside, simplifies the structure simultaneously, makes pressure unit not fragile, can increase the service life; Described diaphragm side is plane, opposite side is the concave plane being provided with band circular arc chamfering, described fluid conduit systems is arranged at side, concave plane, diaphragm side is set to the concave plane of being with circular arc chamfering, make diaphragm edge structure thickening on the one hand, increase with the contact area of fluid conduit systems, thus be conducive to improving the integrally-built intensity of diaphragm, on the other hand, make between diaphragm and fluid conduit systems inwall, to there is structural mitigation transition, be conducive to improving pressure unit sensitivity, linear stable degree and measuring accuracy.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the enlarged drawing at the A place of Fig. 1.
Embodiment
Below in conjunction with embodiment and accompanying drawing, the utility model will be further described.
See accompanying drawing 1 and accompanying drawing 2, a kind of pressure unit, comprise connector 1, connector mount pad 2, housing 3, pressure seat 4, core body 5, briquetting 6, fluid conduit systems 7 and pulse buffer 8, described connector 1 is connected with housing 3 upper end by unitor mount pad 2, described housing 3 lower end connects pressure seat 4, pressure seat 4 is arranged core body 5, bonding with glassy layer 10 between pressure seat 4 with core body 5, briquetting 6 is provided with above described core body 5, fluid conduit systems 7 is provided with below core body 5, described fluid conduit systems 7 one end is provided with diaphragm 9, the other end is connected with pulse buffer 8, described glassy layer 10 is the glass material obtained after sintering, described diaphragm 9 side is plane 901, opposite side is the concave plane 902 being provided with band circular arc chamfering, described fluid conduit systems is arranged at side, concave plane 902.Pressure unit of the present invention is by connecting pressure seat 4 in housing 3 lower end, pressure seat 4 is arranged core body 5, bonding with glassy layer 10 between pressure seat 4 with core body 5, adopt glassy layer 10 bonding, during due to glass-to-metal seal, be infiltrated mutually by glass metal and metal oxide layer, form mixed chemical key, this chemical bonds, much larger than the pressure be subject to when adopting O type circle to make seal, makes pressure unit have good withstand voltage and compressive strength.Meanwhile, glass is a kind of nonmetallic materials, has higher softening point temperature, and it can not discharge any oxious component when using in hot environment, under low-temperature condition state, chemistry, physical characteristics are stablized, there is very strong anticorrosion, be applicable to rugged environment; Be provided with briquetting 6 above described core body 5, briquetting 6 can make core body position fix, and strengthens its vibration resistance, and meanwhile, briquetting 6 can ensure the sealing of pressure unit inside, simplifies the structure simultaneously, makes pressure unit not fragile, can increase the service life; Described diaphragm 9 side is plane, opposite side is the concave plane being provided with band circular arc chamfering, described fluid conduit systems is arranged at side, concave plane, diaphragm side is set to the concave plane 902 of being with circular arc chamfering, make diaphragm edge structure thickening on the one hand, increase with the contact area of fluid conduit systems, thus be conducive to improving the integrally-built intensity of diaphragm, on the other hand, make between diaphragm and fluid conduit systems inwall, to there is structural mitigation transition, be conducive to improving pressure unit sensitivity, linear stable degree and measuring accuracy.
Claims (3)
1. a pressure unit, it is characterized in that: comprise connector, connector mount pad, housing, pressure seat, core body, briquetting, fluid conduit systems and pulse buffer, described connector is connected with housing upper end by unitor mount pad, described housing lower end connects pressure seat, pressure seat arranges core body, pressure seat is bonding with glassy layer with between core body, briquetting is provided with above described core body, fluid conduit systems is provided with below core body, described fluid conduit systems one end is provided with diaphragm, and the other end is connected with pulse buffer.
2. pressure unit according to claim 1, is characterized in that: described glassy layer is the glass material obtained after sintering.
3. pressure unit according to claim 1, is characterized in that: described diaphragm side is plane, and opposite side is the concave plane being provided with band circular arc chamfering, and described fluid conduit systems is arranged at side, concave plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520388575.5U CN204679204U (en) | 2015-06-05 | 2015-06-05 | A kind of pressure unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520388575.5U CN204679204U (en) | 2015-06-05 | 2015-06-05 | A kind of pressure unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204679204U true CN204679204U (en) | 2015-09-30 |
Family
ID=54178887
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520388575.5U Expired - Fee Related CN204679204U (en) | 2015-06-05 | 2015-06-05 | A kind of pressure unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204679204U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106225986A (en) * | 2016-08-12 | 2016-12-14 | 山东佰测传感科技股份有限公司 | Anticorrosion digital pressure measures table |
| CN107505079A (en) * | 2017-08-31 | 2017-12-22 | 安徽禾禾自动化科技有限公司 | A kind of high pressure transmitter |
| CN108918022A (en) * | 2018-05-30 | 2018-11-30 | 威海泰航信息科技有限公司 | pressure sensor |
| CN109883607A (en) * | 2019-02-19 | 2019-06-14 | 武汉中航传感技术有限责任公司 | A kind of fixed core minor pressure buffer device and pressure sensor |
| CN111630361A (en) * | 2017-09-14 | 2020-09-04 | 罗斯蒙特公司 | Compact sensor connector for disposable fluid measurement |
-
2015
- 2015-06-05 CN CN201520388575.5U patent/CN204679204U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106225986A (en) * | 2016-08-12 | 2016-12-14 | 山东佰测传感科技股份有限公司 | Anticorrosion digital pressure measures table |
| CN107505079A (en) * | 2017-08-31 | 2017-12-22 | 安徽禾禾自动化科技有限公司 | A kind of high pressure transmitter |
| CN107505079B (en) * | 2017-08-31 | 2020-10-30 | 安徽禾禾自动化科技有限公司 | High-voltage transmitter |
| CN111630361A (en) * | 2017-09-14 | 2020-09-04 | 罗斯蒙特公司 | Compact sensor connector for disposable fluid measurement |
| CN108918022A (en) * | 2018-05-30 | 2018-11-30 | 威海泰航信息科技有限公司 | pressure sensor |
| CN109883607A (en) * | 2019-02-19 | 2019-06-14 | 武汉中航传感技术有限责任公司 | A kind of fixed core minor pressure buffer device and pressure sensor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150930 Termination date: 20180605 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |