CN202599594U - Ultrahigh pressure high temperature resistant seal insulated lead seat - Google Patents
Ultrahigh pressure high temperature resistant seal insulated lead seat Download PDFInfo
- Publication number
- CN202599594U CN202599594U CN 201220183857 CN201220183857U CN202599594U CN 202599594 U CN202599594 U CN 202599594U CN 201220183857 CN201220183857 CN 201220183857 CN 201220183857 U CN201220183857 U CN 201220183857U CN 202599594 U CN202599594 U CN 202599594U
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- pressure
- wire holder
- pedestal
- lead
- hyperpressure
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Abstract
The utility model relates to an electrical measuring type pressure meter used for measuring pressure, and belongs to the field of pressure measurement. An ultrahigh pressure high temperature resistant seal insulated lead seat comprises a pressure gauge shell and a pressure chamber of a pressure gauge. The ultrahigh pressure high temperature resistant seal insulated lead seat is characterized in that the top of the pressure chamber is provided with a seal pressure cavity and a lead seat used for leading out pressure electrical signals, the lead seat comprises a lead seat body, and a cone hole is installed in the middle of the lead seat body. A lead cone installed inside the cone hole comprises an upper portion, a middle portion and a lower portion, the upper portion and the lower portion are cylinders, the middle portion is a big-end-down cone, the diameters of the cylinders of the upper portion and the lower portion are less than the bottom diameter of the middle cone, the lower portion is stretched into the pressure chamber, a seal insulated layer is installed between the cone hole and the lead cone, and the lead cone and the seal insulated layer are tightly pressed inside the cone hole. The ultrahigh pressure high temperature resistant seal insulated lead seat enables the electrical measuring type pressure meter to be capable of keeping good working states in ultrahigh pressure and high temperature circumstances.
Description
Technical field
The utility model relates to a kind of electric measuring type pressure gauge of gaging pressure, relates in particular to the resistant to elevated temperatures sealed insulation wire holder of the manometric measurement hyperpressure of a kind of electric measuring type.
Background technology
The related pressure limit of pressure measurement MPa more than several Pa to 2000, usually with its be divided into minute-pressure (＜10kPa), low pressure (0.01MPa-0.25MPa), middle pressure (0.25MPa-100MPa), high pressure (＞100MPa), UHV (ultra-high voltage) (＞600MPa).The instrument of gaging pressure has a variety of with regard to its principle, but for the electric measuring type pressure gauge, and it is one of crucial technology that the electric signal that the pressure effect is produced is drawn pressure chamber through electrode.Because should seal between electrode and the pressure cavity and necessary insulation, otherwise the electric signal that gaging pressure produced accurately.
At present; The mode of drawing electric signal for low-pressure mainly contains: through O RunddichtringO, silica gel, epoxy resin, teflin ring or glass basis electrode is drawn from cavity; These hermetically-sealed constructions have the effect of insulation simultaneously, in patent ZL200820089759.1, ZL200820089786.9, ZL200820089785.4, have proposed the sealing wire device of several kinds of compression resistances, see shown in the accompanying drawing 1-3; It mainly is with the medium of glass dust as sealed insulation; Stem is through being sintered to fix on the lead-in wire housing, and 9 is medium among the figure, and 10 is stem.But these pin configurations and sealing principle can not play the effect of insulated enclosure for the hyperpressure of 1000MPa.UHV (ultra-high voltage) can eject pressure chamber with stem, thereby can't seal.And above-mentioned O-ring seal and glue etc., under the hyperpressure effect, at all can't the anchor leg post, can not sealing load.
When the electric signal of hyperpressure sensor is drawn through electrode; Require electrode can not get out wire holder under pressure; And the sealing medium between electrode and the wire holder under high pressure must have insulating effect; Should big relative motion can not be arranged between electrode and the wire holder as far as possible, otherwise can destroy the insulation effect of sealing medium.
Summary of the invention
The utility model technical matters to be solved provides the resistant to elevated temperatures sealed insulation wire holder of a kind of hyperpressure, and solve present wire holder and under the hyperpressure effect, can stem be ejected pressure chamber, thus the defective that can't seal.
Technical scheme
The resistant to elevated temperatures sealed insulation wire holder of a kind of hyperpressure comprises pressure gauge housing and manometric pressure chamber, it is characterized in that: be provided with sealing load chamber and the wire holder of drawing electric pressure signal on said pressure chamber top; Said wire holder comprises the wire holder pedestal; In the middle of the said wire holder pedestal taper hole is arranged, being provided with the lead-in wire awl in the taper hole, during said lead-in wire awl comprises under three parts; Top and bottom are divided into right cylinder; Center section is up-small and down-big cone, and the cylindrical diameter of top and lower part is less than the base diameter of middle circle cone, and the lower part puts in the pressure chamber; Between said taper hole and lead-in wire awl is the sealed insulation layer, and lead-in wire awl and sealed insulation layer are pressed in the taper hole.
Said wire holder pedestal is divided into two parts right cylinder up and down, and the diameter on pedestal top is a pressure accent diameter, and pedestal lower part diameter is provided with seal ring assembly less than the pressure chamber diameter between outer ring, pedestal lower part and pressure chamber inwall.
Said pedestal top adopts arc to be connected with junction, pedestal lower part.
Said seal ring assembly adopts three-layer sealed circle.
Pedestal outer ring below the said wire holder pedestal is provided with the groove of indent.
Said wire holder pedestal adopts high strength alloy steel to make.
Said lead-in wire awl is with beryllium-bronze processing, and the process solution treatment.
Said sealed insulation layer adopts pyrophillite or mica sheet.
Beneficial effect
The resistant to elevated temperatures sealed insulation wire holder of the hyperpressure of the utility model adopts the coupling of cone lead-in wire awl and wire holder taper hole; Can bear the pressure of superelevation and can not be extruded; Adopt the multilayer wire holder to reach excellent sealing performance; Adopt resistant to elevated temperatures material to make and resistant to elevated temperatures sealed insulation layer, thereby make the electric measuring type pressure gauge can under hyperpressure and high-temperature condition, keep good duty.
Description of drawings
Fig. 1-3 is the utility model prior art synoptic diagram.
Fig. 4 is the utility model cross-sectional schematic.
Wherein: 1-wire holder pedestal, 2-seal ring assembly, 3-sealed insulation layer, the 4-awl that goes between, 5-pressure gauge housing, 6-taper hole, 7-groove, 8-manometer pressure chamber, 9-medium, 10-stem.
Embodiment
Below in conjunction with specific embodiment, further set forth the utility model.
For can be under the situation of hyperpressure and high temperature, pressure gauge still can works fine, and the utility model has adopted the wire holder of self sealss forms, has satisfied the requirement of drawing of hyperpressure sensor electrical signal.The cross-sectional schematic of its structure is shown in accompanying drawing 4.
The wire holder that the utility model adopts is made up of wire holder pedestal 1, lead-in wire awl 4 and sealed insulation layer 3.Lead-in wire awl 4 cooperates with wire holder pedestal 1 interior taper hole 6, and the centre accompanies sealed insulation layer 3.
The resistant to elevated temperatures sealed insulation wire holder of the hyperpressure of the utility model comprises pressure gauge housing 5 and manometric pressure chamber 8, is provided with sealing load chamber 8 and the wire holder of drawing electric pressure signal on said pressure chamber 8 tops; Said wire holder comprises wire holder pedestal 1; In the middle of the said wire holder pedestal 1 taper hole 6 is arranged, being provided with lead-in wire awl 4 in the taper hole 6, during said lead-in wire awl 4 comprises under three parts; Top and bottom are divided into right cylinder; Center section is up-small and down-big cone, and the cylindrical diameter of top and lower part is less than the base diameter of middle circle cone, and the lower part puts in the pressure chamber 8; Between said taper hole 6 and lead-in wire awl 4 is sealed insulation layer 3, and lead-in wire awl 4 is pressed in the taper hole 6 with sealed insulation layer 3.
Said wire holder pedestal 1 is divided into two parts right cylinder up and down, and the diameter on pedestal top is a pressure accent diameter, and pedestal lower part diameter is provided with seal ring assembly 2 less than pressure chamber 8 diameters between outer ring, pedestal lower part and pressure chamber 8 inwalls.Said pedestal top adopts arc to be connected with junction, pedestal lower part.Seal ring assembly 2 can adopt three-layer sealed circle.
This wire holder pedestal 1 adopts high strength alloy steel to make, and obtains very high intensity and toughness through modified thermal treatment, can pressure break and brittle failure under the hyperpressure effect.Wire holder pedestal 1 is because the two ends size is different up and down, and middle through arc transition, seal assembly 2 is upwards end motion under the hyperpressure effect, but under the restriction of transition arc, expands, so can external circle of sealing socket and high-pressure chamber; On the outer ring below the pedestal, processed ring-shaped groove 7, the position of groove 7 is positioned at the below of seal ring assembly 2.
Lead-in wire awl 4 usefulness beryllium-bronzes processing in this pedestal, and through very high hardness is arranged after the solution treatment; It is starting material that sealed insulation layer 3 adopts pyrophillite, cooperates Precision Machining with lead-in wire awl 4.Be pressed in the taper hole 6 of wire holder pedestal 1 with sealed insulation layer 3 through will go between awl 4 of unit clamp in advance.
This structure is under the high pressure effect; When pressure acts on lead-in wire awl 4 and taper hole 6; Also act on the cylindrical of pedestal lower part, this acting force plays the back-pressure effect to the cone of lead-in wire awl 4, so taper hole 6 not only can not expand; And under high pressure, can shrink, make connect between pedestal and the lead-in wire awl 4 tightr; Owing to designed groove 7; The wall thickness of the taper hole 6 of groove 7 positions is thinner, so the back-pressure effect of hyperpressure is more obvious, and the groove place more is prone to shrink; Therefore limit lead-in wire awl 4 and sealed insulation layer 3 in the motion in taper hole 6 under the hyperpressure effect, therefore helped the hyperpressure sealing.
Beryllium-bronze lead-in wire awl 4 has extraordinary electric conductivity, and the thermoelectrical potential between the copper-manganese is very little, is very rational electrode material; Sealed insulation layer 3 under high pressure can phase transformation, still has extraordinary insulativity and sealing, adopts mica sheet, aluminum oxide film and pyrophillite all can.
When insulation package hyperpressure sensing element, need separation layer be welded on the wire holder pedestal 1 with laser bonding or argon arc welding, can produce nearly 1000 ℃ high temperature in its welding process, this insulation course shows extraordinary resistance to elevated temperatures.
Claims (8)
1. the resistant to elevated temperatures sealed insulation wire holder of hyperpressure comprises pressure gauge housing and manometric pressure chamber, it is characterized in that: be provided with sealing load chamber and the wire holder of drawing electric pressure signal on said pressure chamber top; Said wire holder comprises the wire holder pedestal; In the middle of the said wire holder pedestal taper hole is arranged, being provided with the lead-in wire awl in the taper hole, during said lead-in wire awl comprises under three parts; Top and bottom are divided into right cylinder; Center section is up-small and down-big cone, and the cylindrical diameter of top and lower part is less than the base diameter of middle circle cone, and the lower part puts in the pressure chamber; Between said taper hole and lead-in wire awl is the sealed insulation layer, and lead-in wire awl and sealed insulation layer are pressed in the taper hole.
2. the resistant to elevated temperatures sealed insulation wire holder of hyperpressure as claimed in claim 1; It is characterized in that: said wire holder pedestal is divided into two parts right cylinder up and down; The diameter on pedestal top is a pressure accent diameter; Pedestal lower part diameter is provided with seal ring assembly less than the pressure chamber diameter between outer ring, pedestal lower part and pressure chamber inwall.
3. the resistant to elevated temperatures sealed insulation wire holder of hyperpressure as claimed in claim 2 is characterized in that: said pedestal top adopts arc to be connected with junction, pedestal lower part.
4. the resistant to elevated temperatures sealed insulation wire holder of hyperpressure as claimed in claim 2, it is characterized in that: said seal ring assembly adopts three-layer sealed circle.
5. according to claim 1 or claim 2 the resistant to elevated temperatures sealed insulation wire holder of hyperpressure, it is characterized in that: the pedestal outer ring below the said wire holder pedestal is provided with the groove of indent.
6. the resistant to elevated temperatures sealed insulation wire holder of hyperpressure as claimed in claim 1 is characterized in that: said wire holder pedestal adopts high strength alloy steel to make.
7. the resistant to elevated temperatures sealed insulation wire holder of hyperpressure as claimed in claim 1 is characterized in that: said lead-in wire awl is with beryllium-bronze processing, and the process solution treatment.
8. the resistant to elevated temperatures sealed insulation wire holder of hyperpressure as claimed in claim 1 is characterized in that: said sealed insulation layer adopts pyrophillite or mica sheet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220183857 CN202599594U (en) | 2012-04-26 | 2012-04-26 | Ultrahigh pressure high temperature resistant seal insulated lead seat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220183857 CN202599594U (en) | 2012-04-26 | 2012-04-26 | Ultrahigh pressure high temperature resistant seal insulated lead seat |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202599594U true CN202599594U (en) | 2012-12-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220183857 Expired - Fee Related CN202599594U (en) | 2012-04-26 | 2012-04-26 | Ultrahigh pressure high temperature resistant seal insulated lead seat |
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| CN (1) | CN202599594U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103560621A (en) * | 2013-11-25 | 2014-02-05 | 苏州贝得科技有限公司 | Assembly type sealing terminal assembly of closed type refrigeration motor temperature sensing element |
| CN106595804A (en) * | 2017-02-07 | 2017-04-26 | 浙江众邦机电科技有限公司 | Industrial sewing machine and fuel quantity detection system applied to same, and ceramic pressure sensing apparatus |
| CN107677409A (en) * | 2017-11-06 | 2018-02-09 | 嘉兴御创电力科技有限公司 | A kind of high-precision hyperpressure sensor |
-
2012
- 2012-04-26 CN CN 201220183857 patent/CN202599594U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103560621A (en) * | 2013-11-25 | 2014-02-05 | 苏州贝得科技有限公司 | Assembly type sealing terminal assembly of closed type refrigeration motor temperature sensing element |
| CN103560621B (en) * | 2013-11-25 | 2016-04-06 | 苏州贝得科技有限公司 | The assembled hermetic terminal assembly of enclosed refrigeration motor temperature sensing element |
| CN106595804A (en) * | 2017-02-07 | 2017-04-26 | 浙江众邦机电科技有限公司 | Industrial sewing machine and fuel quantity detection system applied to same, and ceramic pressure sensing apparatus |
| CN107677409A (en) * | 2017-11-06 | 2018-02-09 | 嘉兴御创电力科技有限公司 | A kind of high-precision hyperpressure 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: 20121212 Termination date: 20150426 |
|
| EXPY | Termination of patent right or utility model |