CN202393550U - Differential pressure sensor capable of measuring various fluid media - Google Patents
Differential pressure sensor capable of measuring various fluid media Download PDFInfo
- Publication number
- CN202393550U CN202393550U CN2011205682193U CN201120568219U CN202393550U CN 202393550 U CN202393550 U CN 202393550U CN 2011205682193 U CN2011205682193 U CN 2011205682193U CN 201120568219 U CN201120568219 U CN 201120568219U CN 202393550 U CN202393550 U CN 202393550U
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Abstract
The utility model discloses a differential pressure sensor capable of measuring various fluid media, which comprises a tubular main sensor shell, wherein two ends of the main sensor shell are respectively welded with a joint; the two joints are respectively welded with an isolated diaphragm; the two isolated diaphragms are respectively welded with a differential pressure core body sintering seat; the side wall of the main sensor shell is welded with a connecting sleeve of which the inner hole is communicated with the inner hole of the main sensor shell; an isolated clamp ring, a lead adapter plate and a fixed plate are successively arranged far away from the direction of the main sensor shell; the fixed plate is provided with a flat cable; one end of the flat cable passes through the fixed plate to be connected with the lead adapter plate; and the other end of the flat cable is penetrated out of the fixed plate to be connected with an electric connector. The differential pressure sensor has the advantages of small volume, high strength and good sealing performance and can be widely applied to the occasions for automatically detecting and controlling pressure in the fields, such as food, pharmacy, petroleum, chemical industry and the like, high static pressure and too large overload pressure can be borne, and the pressure of various fluids compatible with stainless steel can be precisely and reliably measured.
Description
Technical field
The utility model belongs to technical field of sensor manufacture; Relate to a kind of differential pressure pick-up; Be specifically related to a kind of differential pressure pick-up of energy measurement multiple fluid medium; Be applied to industrial process detection and control system, can the medium with 316L stainless steel material compatibility be detected, and convert the pressure signal that records to electric signal.
Background technology
Along with industrial expansion, energy-conservation of consumption reduction, enhancing productivity, reducing production costs, improving the quality of products has become the emphasis of enterprise work.The extensive application of pressure transducer makes technological transformation be achieved; Existing differential pressure pick-up adopts O shape rubber seal to seal, and sealing property is relatively poor, and volume is bigger, and the static pressure that can bear is less, can only measure the medium of compatible stainless steel of while and elastomeric material.And can't test static pressure height, little, the mordant medium of volume requirement.
The utility model content
In order to overcome the problem that exists in the above-mentioned prior art, the purpose of the utility model provides a kind of differential pressure pick-up of energy measurement multiple fluid medium, has the better seal performance, and volume is less, can bear high static pressure, wider range of the medium of test.
For realizing above-mentioned purpose, the technical scheme that the utility model adopted is a kind of differential pressure pick-up of energy measurement multiple fluid medium; The sensor main casing that comprises tubular; The two ends of sensor main casing are welded with a joint respectively, and a joint is welded with isolation diaphragm towards an end of another joint, is provided with differential pressure core body sintering seat between these two isolation diaphragms; Weld with these two isolation diaphragms respectively at the two ends of differential pressure core body sintering seat; Be welded with the adapter sleeve that endoporus communicates with sensor main casing endoporus on the sidewall of sensor main casing, adapter sleeve is interior, the edge is disposed with insulation pressure ring, lead-in wire card extender and fixed head away from the direction of sensor main casing, and fixed head is provided with winding displacement; One end of winding displacement passes fixed head and is connected with the lead-in wire card extender, and the other end of winding displacement passes fixed head and is connected with electric connector.
Two joints, two isolation diaphragms and the coaxial setting of differential pressure core body sintering seat.
Differential pressure core body sintering seat is connected with an end of lead, and the other end of lead passes the insulation pressure ring and is connected with the lead-in wire card extender.
A joint is the G1/4-H joint, and another joint is the G1/4-L joint.
The utility model differential pressure pick-up is affixed as a whole through welding manner with critical piece; Not using is threaded seals with elastomeric material; When dwindling sensor bulk to greatest extent; Improve the sealing property of sensor and the ability to bear of static pressure, be applicable to and the pressure survey of the compatible various fluids of stainless steel, enlarged test specification.
Description of drawings
Accompanying drawing is the structural representation of the utility model differential pressure pick-up.
Among the figure, 1. first joint, 2. first isolation diaphragm, 3. differential pressure core body sintering seat, 4. sensor main casing, 5. second isolation diaphragm, 6. second joint, 7. insulation pressure ring, 8. adapter sleeve, 9. lead-in wire card extender, 10. fixed head, 11. winding displacements, 12. electric connectors.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is elaborated.
Two joints of existing differential pressure pick-up are connected through attachment screw, and the surface of contact of two joints adopts the sealing of O RunddichtringO, also adopt the sealing of O RunddichtringO between joint and the core body sintering seat; All be connected between joint and other parts through bolt; Cause sensor bulk bigger, sealing property is relatively poor, and the static pressure that can bear is less; And can only be used to measure the medium of compatible stainless steel of while and elastomeric material, make that the application of sensor scope is narrower.In order to overcome the problem that exists in the above-mentioned prior art, the utility model provides that a kind of volume is less, good seal performance, can bear the full welding differential pressure pick-up of high static pressure, has the range of application of broad; The structure of welding differential pressure pick-up is shown in accompanying drawing entirely; The sensor main casing 4 that comprises tubular; The two ends of sensor main casing 4 are welded with first joint 1 and second joint 6 respectively; First joint 1 is welded with first isolation diaphragm, 2, the second joints 6 towards the end face of second joint 6 and is welded with second isolation diaphragm 5 towards the end face of first joint 1; Be provided with differential pressure core body sintering seat 3 between first isolation diaphragm 2 and second isolation diaphragm 5, weld with first isolation diaphragm 2 and second isolation diaphragm 5 respectively at the two ends of differential pressure core body sintering seat 3; Be welded with adapter sleeve 8 on the sidewall of sensor main casing 4, the endoporus of adapter sleeve 8 communicates with the endoporus of sensor main casing 4; In the endoporus of adapter sleeve 8, along be disposed with insulation pressure ring 7, lead-in wire card extender 9 and fixed head 10 away from the direction of sensor main casing 4; Be provided with winding displacement 11 on the fixed head 10; One end of winding displacement 11 passes fixed head 10 and is connected with lead-in wire card extender 9, and the other end of winding displacement 11 passes fixed head 10 and is connected with electric connector 12.Differential pressure core body sintering seat 3 is connected with an end of lead 13, and the other end of lead 13 passes insulation pressure ring 7 and is connected with lead-in wire card extender 9.
Insulation pressure ring 7, lead-in wire card extender 9 are interference fit with fixed head 10 with adapter sleeve 8 endoporus and are connected.
When testing with this differential pressure pick-up; First joint 1 is connected with the Hi-pot test media end, and second joint 6 is connected with the low voltage experiment media end, after the pressure of high and low pressure end is delivered on the sensor sensing element; Form a pressure differential at this sensor sensing element; Because piezoresistive effect, be delivered to and export after pressure differential on the sensor sensing element converts electric signal to, accomplish the test of pressure medium difference.
The utility model differential pressure pick-up is through the critical piece of welding manner with sensor: G1/4-H joint, first isolation diaphragm 2, differential pressure core body sintering seat 3, second isolation diaphragm 5, G1/4-L joint, sensor main body shell 4 and abutment ring 8 are connected and fixed.Use on its one-piece construction and be threaded and elastomeric material seals; Therefore volume is little, intensity is high, good seal performance, can bear high static pressure and big overload pressure, can accurate and reliable measure the pressure survey with the compatible various fluids of stainless steel; Widened the usable range of differential pressure pick-up, can be widely used in the occasion of fields such as food, pharmacy, oil, chemical industry the automatic Detection & Controling of pressure.
Claims (4)
1. the differential pressure pick-up of an energy measurement multiple fluid medium; It is characterized in that; The sensor main casing (4) that comprises tubular; The two ends of sensor main casing (4) are welded with a joint respectively, and a joint is welded with isolation diaphragm towards an end of another joint, is provided with differential pressure core body sintering seat (3) between these two isolation diaphragms; Weld with these two isolation diaphragms respectively at the two ends of differential pressure core body sintering seat (3); Be welded with the adapter sleeve (8) that endoporus communicates with sensor main casing (4) endoporus on the sidewall of sensor main casing (4), adapter sleeve (8) is interior, the edge is disposed with insulation pressure ring (7), lead-in wire card extender (9) and fixed head (10) away from the direction of sensor main casing (4), and fixed head (10) is provided with winding displacement (11); One end of winding displacement (11) passes fixed head (10) and is connected with lead-in wire card extender (9), and the other end of winding displacement (11) passes fixed head (10) and is connected with electric connector (12).
2. differential pressure pick-up according to claim 1 is characterized in that, described two joints, two isolation diaphragms and the coaxial setting of differential pressure core body sintering seat (3).
3. differential pressure pick-up according to claim 1 and 2 is characterized in that, described differential pressure core body sintering seat (3) is connected with an end of lead (13), and the other end of lead (13) passes insulation pressure ring (7) and is connected with lead-in wire card extender (9).
4. differential pressure pick-up according to claim 1 and 2 is characterized in that, a described joint is the G1/4-H joint, and another joint is the G1/4-L joint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205682193U CN202393550U (en) | 2011-12-31 | 2011-12-31 | Differential pressure sensor capable of measuring various fluid media |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205682193U CN202393550U (en) | 2011-12-31 | 2011-12-31 | Differential pressure sensor capable of measuring various fluid media |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202393550U true CN202393550U (en) | 2012-08-22 |
Family
ID=46668464
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205682193U Expired - Fee Related CN202393550U (en) | 2011-12-31 | 2011-12-31 | Differential pressure sensor capable of measuring various fluid media |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202393550U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109186851A (en) * | 2018-09-27 | 2019-01-11 | 江苏德尔森控股有限公司 | A kind of many reference amounts differential pressure pick-up |
| CN111855073A (en) * | 2020-08-25 | 2020-10-30 | 武汉飞恩微电子有限公司 | EGR differential pressure sensor |
-
2011
- 2011-12-31 CN CN2011205682193U patent/CN202393550U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109186851A (en) * | 2018-09-27 | 2019-01-11 | 江苏德尔森控股有限公司 | A kind of many reference amounts differential pressure pick-up |
| CN111855073A (en) * | 2020-08-25 | 2020-10-30 | 武汉飞恩微电子有限公司 | EGR differential 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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120822 Termination date: 20181231 |