CN204964076U - Pressure transducer - Google Patents
Pressure transducer Download PDFInfo
- Publication number
- CN204964076U CN204964076U CN201520745230.0U CN201520745230U CN204964076U CN 204964076 U CN204964076 U CN 204964076U CN 201520745230 U CN201520745230 U CN 201520745230U CN 204964076 U CN204964076 U CN 204964076U
- Authority
- CN
- China
- Prior art keywords
- ripple
- ring seal
- film bar
- sealing washer
- disc
- 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
Pressure transducer, the improvement that relates to capacitanc pressure transducer structure is technological. Including the casing, there is ripple pressure measurement subassembly in the casing, ripple pressure measurement subassembly structure includes the columniform corrugated diaphragm seat, and there is isolation diaphragm corrugated diaphragm seat outside, has the electric capacity fixed plate in the corrugated diaphragm seat, and there is the measurement diaphragm at electric capacity fixed plate center, be fixed with the disc at corrugated diaphragm seat both ends, adopt threaded connection between disc and the corrugated diaphragm seat, still the cover is equipped with the sealing washer on every disc, the sealing washer cross -section is circular, do not has the recess of right angle shape on the sealing washer inner edge top of the sealing washer inner edge lower part of top and below, and upper and lower disc neighboring imbeds respectively in the right angle recess, be connected with the union (screwed)bonnet (UB respectively at casing both ends, two union (screwed)bonnet (UBs respectively with two sealing washers on lower limb in close contact with, sealing washer outer fringe and casing internal surface in close contact with. The sealed effect of isolation diaphragm was not good during it had solved current capacitanc pressure transducer, installed inconvenient problem.
Description
Technical field
The utility model relates to industrial automation instrument technical field, is specifically related to the improvement opportunity of capacitance pressure transmitter structure.
Background technology
Pressure unit (pressuretransmitter) 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 load cell can be experienced by it is transformed into the electric signal (as 4 ~ 20mADC etc.) of standard, 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.The principle of pressure unit and application thereof: pressure unit is liquid level, density and pressure for measuring liquid, gas or steam, be then transformed into 4 ~ 20mADC signal and export by pressure signal.The classification of pressure unit: 1, usual pressure transmitter; 2, explosion-proof pressure transmitter; 3, differential pressure transmitter; 4, medium and high temperature pressure unit; 5, teletransmission pressure unit.
In existing capacitance pressure transmitter, between isolation diaphragm upper and lower side and shell body, seal welding or stick with glue connects, and sealing effectiveness is bad, installs inconvenient.
Summary of the invention
The utility model provides pressure unit, and it is bad that the utility model solves isolation diaphragm sealing effectiveness in existing capacitance pressure transmitter, installs inconvenient problem.
For solving the problem, the utility model adopts following technical scheme: pressure unit, comprise housing, ripple manometric module is had in housing, ripple manometric module structure comprises columniform ripple film bar, has isolation diaphragm outside ripple film bar, has electric capacity fixed head in ripple film bar, there is measuring diaphragm at electric capacity fixed head center, and ripple film bar top is provided with electrode tip; It is characterized in that, be fixed with disk at ripple film bar two ends, adopt between disk with ripple film bar and be threaded; Each disk is also set with O-ring seal, and described O-ring seal cross section is circular, up bottom, O-ring seal inner edge and the top, O-ring seal inner edge of below have the groove of square respectively, upper and lower disk neighboring is embedded in right angle groove respectively; Divide at housing two ends and be connected with union (screwed)bonnet (UB, two union (screwed)bonnet (UBs respectively with two O-ring seal lower edges close contacts, O-ring seal outer rim and shell inner surface close contacts.
Advantage of the present utility model: sealing is good, installation, convenient disassembly, be convenient to maintenance.
Accompanying drawing explanation
Fig. 1 schemes outside the utility model;
Fig. 2 is the structural representation of the utility model ripple manometric module.
Symbol description in figure: hickey 1, union (screwed)bonnet (UB 2, connecting duct interface 3, disk 4, insulating oil 5, measuring diaphragm 6, electric capacity fixed head 7, electrode tip 8, silicone oil 9, isolation diaphragm 10, housing 11, O-ring seal 12, ripple film bar 13.
Embodiment
By best embodiment, the utility model is described in detail below
.
As shown in Figure 1-2, pressure unit, comprises housing 11, and housing 11 is cylinder barrel shaped structures, be connected with in the middle part of housing 11 for input fluid hickey 1 and interiorly establish the connecting duct interface 3 connecing electrical lead; Ripple manometric module is had in housing 11.Ripple manometric module structure is substantially identical with existing like product structure, comprise columniform ripple film bar 13, isolation diaphragm 10 is had outside ripple film bar 13, electric capacity fixed head 7 is had in ripple film bar 13, be filled with insulating oil 5 in ripple film bar 13, filling silicon oil 9 in electric capacity fixed head 7, there is measuring diaphragm 6 at electric capacity fixed head 7 center, ripple film bar 13 top is provided with electrode tip 8, and electrode tip 8 connects electrical lead.Invention main points of the present utility model are: be fixed with disk 4 at ripple film bar 13 two ends, adopt and be threaded between disk 4 with ripple film bar 13; Each disk 4 is also set with O-ring seal 12, and described O-ring seal 12 cross section is circular, and the groove of square is arranged respectively at the top, O-ring seal 12 inner edge of bottom, O-ring seal 12 inner edge up and below, and upper and lower disk 4 neighboring is embedded in right angle groove respectively; Divide at housing 11 two ends and be connected with union (screwed)bonnet (UB 2, two union (screwed)bonnet (UBs 2 respectively with two O-ring seal 12 lower edges close contacts, and then form pressing sealing structure; O-ring seal 12 outer rim and housing 11 inside surface close contact, and then form pressing sealing structure.
Last it is noted that obviously, above-described embodiment is only for the utility model example is clearly described, and the restriction not to embodiment.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without the need to also giving all embodiments.And thus the apparent change of amplifying out or variation be still among protection domain of the present utility model.
Claims (1)
1. pressure unit, comprise housing, ripple manometric module is had in housing, ripple manometric module structure comprises columniform ripple film bar, isolation diaphragm is had outside ripple film bar, have electric capacity fixed head in ripple film bar, there is measuring diaphragm at electric capacity fixed head center, and ripple film bar top is provided with electrode tip; It is characterized in that, be fixed with disk at ripple film bar two ends, adopt between disk with ripple film bar and be threaded; Each disk is also set with O-ring seal, and described O-ring seal cross section is circular, up bottom, O-ring seal inner edge and the top, O-ring seal inner edge of below have the groove of square respectively, upper and lower disk neighboring is embedded in right angle groove respectively; Be connected to union (screwed)bonnet (UB at housing two ends, two union (screwed)bonnet (UBs respectively with two O-ring seal lower edges close contacts, O-ring seal outer rim and shell inner surface close contacts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520745230.0U CN204964076U (en) | 2015-09-24 | 2015-09-24 | Pressure transducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520745230.0U CN204964076U (en) | 2015-09-24 | 2015-09-24 | Pressure transducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204964076U true CN204964076U (en) | 2016-01-13 |
Family
ID=55059132
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520745230.0U Expired - Fee Related CN204964076U (en) | 2015-09-24 | 2015-09-24 | Pressure transducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204964076U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106404275A (en) * | 2016-12-07 | 2017-02-15 | 无锡优耐特净化装备有限公司 | Shell structure of pressure transmitter |
| CN107505026A (en) * | 2017-08-31 | 2017-12-22 | 安徽禾禾自动化科技有限公司 | A kind of single flange capacitive liquid level transmitter |
-
2015
- 2015-09-24 CN CN201520745230.0U patent/CN204964076U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106404275A (en) * | 2016-12-07 | 2017-02-15 | 无锡优耐特净化装备有限公司 | Shell structure of pressure transmitter |
| CN107505026A (en) * | 2017-08-31 | 2017-12-22 | 安徽禾禾自动化科技有限公司 | A kind of single flange capacitive liquid level transmitter |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160113 Termination date: 20160924 |