CN212988692U - Adapter mechanism of check flange pressure-taking type differential pressure transmitter - Google Patents
Adapter mechanism of check flange pressure-taking type differential pressure transmitter Download PDFInfo
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- CN212988692U CN212988692U CN202022445184.6U CN202022445184U CN212988692U CN 212988692 U CN212988692 U CN 212988692U CN 202022445184 U CN202022445184 U CN 202022445184U CN 212988692 U CN212988692 U CN 212988692U
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- 239000002184 metal Substances 0.000 claims abstract description 46
- 238000007789 sealing Methods 0.000 claims description 23
- 238000003825 pressing Methods 0.000 claims description 18
- 238000012795 verification Methods 0.000 claims description 14
- 238000010079 rubber tapping Methods 0.000 claims description 12
- 229920001973 fluoroelastomer Polymers 0.000 claims description 10
- 210000003437 trachea Anatomy 0.000 claims description 6
- 238000005056 compaction Methods 0.000 claims description 5
- 230000006978 adaptation Effects 0.000 abstract description 8
- 238000001514 detection method Methods 0.000 abstract description 2
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 5
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000003044 adaptive effect Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005194 fractionation Methods 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
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Abstract
The utility model discloses a check-up flange is got and is pressed formula differential pressure transmitter's adaptation mechanism, the movable support that compresses tightly of a plurality of "C" types of metal flange circumference equipartition, "the movable bottom segment that compresses tightly the support of C" type links to each other with the bottom of metal flange is fixed, "the movable support that compresses tightly of C" type is equipped with the locking hand wheel that compresses tightly the flange with the changer at the metal flange top surface, locking screw and hexagonal lock nut, the metal flange lateral wall is equipped with standard check-up pressure entry, inside gas circuit and the gas circuit of standard check-up pressure export formation intercommunication, "the movable support top segment that compresses tightly of C" type is equipped with the guide slot that is divided into guide slot and lower guide slot, the locking hand wheel sets up in the locking screw top, locking screw links to each other with hexagonal lock nut screw. The utility model discloses the flange of the multiple specification of adaptation and pressure grade simultaneously gets pressure differential transmitter's pressure flange is got to the changer, can wide application in automatic instrument detection area.
Description
Technical Field
The utility model relates to an automatic change instrument detection area, especially relate to a check-up flange is got and is pressed formula differential pressure transmitter's adaptation mechanism.
Background
In modern industrial processes, the measurement of pressure (differential pressure) signals is very widely used. Among the many pressure (differential pressure) measuring transmitters, the flange-type differential pressure transmitter can avoid the adverse effects that the measured medium may have on the measurement through the pressure leading pipe, and these effects include: crystallization, solidification, vaporization (boiling), condensation, fractionation (heavy change). Most occasions needing to fill insulating liquid in the pressure leading pipe or forcibly tracing heat can be solved by using a flange type differential pressure transmitter instead. Flange-type pressure (differential pressure) transmitters are therefore becoming more widely used.
In the use process of the flange type pressure (differential pressure) transmitter, regular verification is required to be carried out so as to ensure that performance indexes of the transmitter, such as precision, linearity, return difference, repeatability and the like, meet the requirements of industrial production. However, since the field of industrial design is very wide, the flange specifications and models of the flange type pressure (differential pressure) transmitters are different, in order to verify the flange type pressure (differential pressure) transmitters with different specifications and models, verification flanges with different specifications are often required to be manufactured to be matched with the pressure taking flange of the instrument transmitter to complete verification, and thus, various inconveniences such as complex verification process, low verification efficiency, various verification appliances and the like are brought to the verification of the transmitter.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming the not enough of above-mentioned background art, provide a check-up flange pressure formula differential pressure transmitter's adapter mechanism, make its flange pressure formula differential pressure transmitter's that can multiple specification of adaptation and pressure grade simultaneously the changer pressure flange of getting, and need not to make the metal flange dish of various specifications alone again and accomplish the check-up work of changer, this adaptation structure processing is convenient, convenient to use simultaneously, has increased substantially work efficiency.
The utility model provides a pair of check-up flange is got and is pressed formula differential pressure transmitter's adaptation mechanism, including the metal flange dish, the metal flange dish has a plurality of "C" type movable pressure support along the circumference equipartition, the opening of "C" type movable pressure support is towards the metal flange dish centre of a circle, the bottom section of "C" type movable pressure support passes through the fixed linking to each other in bottom of support fixing bolt with the metal flange dish, the top section of "C" type movable pressure support is equipped with and is used for compressing tightly the locking hand wheel, locking screw and the hexagonal lock nut of changer pressure flange dish top surface, the metal flange dish lateral wall is equipped with standard check-up pressure entry, the metal flange dish is inside along radially being equipped with inside gas circuit, metal flange dish centre of a circle department is equipped with the standard check-up pressure export that upwards sets up along the axial, standard check-, Inside gas circuit and standard check-up pressure outlet form the gas circuit of intercommunication, the top section of the movable pressure bracket of "C" type is equipped with the guide slot that sets up along the top section axial, the guide slot divide into upper guide slot and lower guide slot that sets up from top to bottom, locking hand wheel sets up in the locking screw top, locking screw passes upper guide slot and lower guide slot in proper order and links to each other with hexagonal lock nut screw thread, the distance more than or equal to locking screw diameter of upper guide slot both sides, and be less than the distance of hexagonal lock nut opposite side, the distance of guide slot both sides equals the distance of hexagonal lock nut opposite side down.
In the technical scheme, the top disc surface of the metal flange plate is provided with a fluororubber sealing layer tightly attached to the pressure measuring flange of the transmitter in a sealing manner.
In the above technical scheme, still include the standard pressure calibration stand that links to each other with the air supply, the standard pressure calibration stand is equipped with the trachea, be equipped with pressure indicator table and standard pressure outlet on the trachea, standard calibration pressure inlet is equipped with the gas circuit joint who links to each other rather than, standard pressure outlet links to each other with gas circuit joint through drawing the pressure hose.
In the technical scheme, a pressure adjusting hand wheel is arranged at the end part of the standard pressure calibration table.
In the technical scheme, the thickness of the fluororubber sealing layer is 2-3 mm.
In the technical scheme, the vertical section of the C-shaped movable compaction support is two sections which are hinged and connected through a movable hinge.
The utility model discloses check-up flange is got and is pressed formula differential pressure transmitter's adapter mechanism has following beneficial effect:
(1) the metal flange plate has large sealing area and can be completely matched with the sealing surfaces of the pressure taking flanges of the transmitters with different specifications;
(2) designing a C-shaped movable compaction support, wherein the locking screw rod can axially move along the guide groove in the top section of the C-shaped movable compaction support, and the sealing requirements of the sealing surfaces of the pressure taking flanges of the transmitters with different specifications are adapted through the tight fit of a locking hand wheel, the guide groove and a hexagonal locking nut, so that the calibration conditions of the instrument meet the requirements of calibration specifications;
(3) the two vertical sections of each C-shaped movable pressing support are hinged, so that the upper half part of each C-shaped movable pressing support can be conveniently opened and used for taking and placing pressure taking flanges of transmitters with different specifications;
(4) the adaptive mechanism is simple to process, less in material consumption, convenient to use, high in efficiency and capable of being repeatedly used, and processes are saved.
Drawings
FIG. 1 is a front view of an adapting mechanism of a pressure-tapping differential pressure transmitter according to an embodiment of the present invention;
FIG. 2 is a structural plan view of a first embodiment of an adapting mechanism of the verification flange pressure-tapping differential pressure transmitter of the present invention;
fig. 3 is the structure front view of the adaptation mechanism embodiment of the verification flange pressure-tapping differential pressure transmitter of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the following drawings and examples, but the examples should not be construed as limiting the present invention.
Example one
Referring to fig. 1 to 2, the adapting mechanism of the calibration flange pressure-tapping differential pressure transmitter of the present invention comprises a metal flange 1, wherein a plurality of C-shaped movable pressing brackets 2 are uniformly distributed along the circumferential direction of the metal flange 1, the openings of the C-shaped movable pressing brackets 2 face the center of the circle of the metal flange 1, the bottom section 2.1 of the C-shaped movable pressing bracket 2 is fixedly connected with the bottom of the metal flange 1 through bracket fixing bolts 3, the top section 2.2 of the C-shaped movable pressing bracket 2 is provided with a locking hand wheel 5, a locking screw rod 6 and a hexagonal locking nut 7 for pressing the transmitter pressure-tapping flange 4 on the top surface of the metal flange 1, the side wall of the metal flange 1 is provided with a standard calibration pressure inlet 8, the inside of the metal flange 1 is provided with an internal gas circuit 9 along the radial direction, the center of the metal flange 1 is provided with a standard calibration pressure outlet 10 which is arranged upward along the axial direction, standard check-up pressure entry 8, inside gas circuit 9 and standard check-up pressure export 10 form the gas circuit of intercommunication, the top segment 2.2 of the movable pressure bracket 2 of "C" type is equipped with the guide slot 11 that sets up along top segment 2.2 axial, guide slot 11 divide into upper guide slot 11.1 and lower guide slot 11.2 that set up from top to bottom, locking hand wheel 5 sets up in locking screw 6 top, locking screw 6 passes upper guide slot 11.1 in proper order and links to each other with hexagonal lock nut 7 screw thread with lower guide slot 11.2, the distance more than or equal to locking screw 6 diameter of upper guide slot 11.1 both sides, and be less than the distance on hexagonal lock nut 7 opposite side, the distance on lower guide slot 11.2 both sides equals the distance on hexagonal lock nut 7 opposite side.
And a fluororubber sealing layer 12 tightly attached to the transmitter pressure measuring flange 4 in a sealing manner is arranged on the top disc surface of the metal flange plate 1.
Example two
Referring to fig. 3, the utility model discloses the adaptation mechanism of check-up flange pressure-tapping differential pressure transmitter, except the structure disclosed in embodiment one, still include the standard pressure check-up platform 13 that links to each other with the air supply, standard pressure check-up platform 13 is equipped with trachea 14, be equipped with pressure indicator 15 and standard pressure export 16 on the trachea 14, standard check-up pressure entry 8 is equipped with the gas circuit joint 17 who links to each other rather than, standard pressure export 16 links to each other with gas circuit joint 17 through drawing pressure hose 18.
And a pressure adjusting hand wheel 19 is arranged at the end part of the standard pressure calibration table 13. The thickness of the fluororubber sealing layer 12 is 2-3 mm.
The vertical section 2.3 of the C-shaped movable compaction support 2 is two sections which are hinged and connected through a movable hinge 20.
The utility model relates to a thinking does:
the flange plate 1 made of metal is designed, the diameter of the metal flange plate 1 needs to meet the requirement of checking the diameter of the transmitter pressure taking flange 4 with the largest size in the flange pressure taking type differential pressure transmitter, and therefore the flange plate is downward compatible with the transmitter pressure taking flange 4 with other smaller specifications and sizes. 4C-shaped movable pressing supports 2 are symmetrically arranged on the metal flange plate 1, and the C-shaped movable pressing supports 2 are in threaded connection and fixed with the bottom of the metal flange plate 1 through support fixing bolts 3. A long strip-shaped guide groove 11 is designed on each C-shaped movable pressing support 2, the locking hand wheel 5, the locking screw rod 6 and the hexagonal locking nut 7 can move freely in the guide groove 11, and the locking screw rod 6 can be fixed at a required position through the matching of the locking hand wheel 5, the locking screw rod 6 and the hexagonal locking nut 7. A standard calibration pressure inlet 8 is processed on the side wall of the metal flange plate 1, meanwhile, an internal air path 9 which extends to the circle center of the metal flange plate 1 along the radial direction is arranged in the metal flange plate 1 at the standard calibration pressure inlet 8, and the standard calibration pressure inlet 10 is formed by extending from the axial direction of the metal flange plate 1 to the top surface of the metal flange plate 1. Except for the standard check pressure outlet 10, the top surface of the metal flange plate 1 is covered with a layer of fluororubber sealing layer 12.
Referring to fig. 3, the utility model discloses the use method of check-up flange pressure tapping formula differential pressure transmitter's adapter mechanism is:
the upper half part of the C-shaped movable pressing support 2 can be upwards opened through the movable hinge 20, the transmitter pressure taking flange 4 of the flange pressure taking type differential pressure transmitter to be verified is placed on the fluororubber sealing layer 12 of the metal flange plate 1, and the metal flange plate 1 and the transmitter pressure taking flange 4 are coaxially arranged. After the movable hinge 20 is reset, the locking screw 6 is axially moved in the strip-shaped guide groove 11, after the locking screw 6 is aligned to the positioning surface 4.1 of the transmitter pressure taking flange 4, the locking hand wheel 5 is rotated, because the distance between two sides of the lower guide groove 11.2 is equal to the distance between opposite sides of the hexagonal locking nut 7, and the hexagonal locking nut 7 is embedded in the lower guide groove 11.2, the hexagonal locking nut 7 cannot axially float when the locking screw 6 and the hexagonal locking nut 7 rotate relatively, the locking screw 6 can move downwards and firmly support the transmitter pressure taking flange 4 to be verified, and the sealing ring 4.2 at the bottom of the transmitter pressure taking flange 4 is tightly matched with the fluororubber sealing layer 12 to form a sealing cavity 21. The standard pressure outlet 16 of the standard pressure calibration platform 13 is tightly connected with the standard calibration pressure inlet 8 on the side wall of the metal flange plate 1 through a pressure guiding hose 18. The pressure adjusting hand wheel 19 is adjusted, the high-precision pressure indicator 15 is observed, standard calibration pressure enters the sealing cavity 21, the pressure sensing diaphragm 22 on the top surface inside the pressure measuring flange 4 of the transmitter senses the standard calibration pressure and transmits the standard calibration pressure to be standard signal output, and a calibrator reads and calibrates the standard signal to complete the calibration of the flange pressure measuring differential pressure transmitter.
It should be noted that the fluororubber sealing layer 12 is required to cover the top surfaces of all the metal flanges 1 except the standard calibration pressure outlet 10, and has a thickness of 2-3mm, so as to meet the requirements of sealing and repeated use of the adapting structure and the pressure taking flanges 4 of the transmitters with different specifications.
The length of the guide groove 11 on the C-shaped movable pressing support 2 can meet the size requirements of the fixed maximum transmitter pressure taking flange 4 and the fixed minimum transmitter pressure taking flange 4.
The distance between the two sides of the lower guide groove 11.2 is equal to the distance between the opposite sides of the hexagonal locking nut 7, so that when the locking hand wheel 5 is rotated downwards, the hexagonal locking nut 7 is fixed by the two sides of the lower guide groove 11.2 and cannot move upwards relative to the locking screw 6, and when the locking screw 6 props downwards against the pressure taking flange 4 of the verified transmitter, the torsion generated when the locking hand wheel 5 is screwed can be converted into downward pretightening force.
The internal threads of the standard calibration pressure inlet 8 are sized to meet the connection requirements with the air circuit connection 17.
The C-shaped movable pressing support 2, the support fixing bolt 3, the locking hand wheel 5, the locking screw 6, the hexagonal locking nut 7 and the movable hinge 20 all need to ensure certain strength so as to generate enough downward pressure to ensure the sealing requirement of the sealing cavity 21.
It will be apparent to those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims and their equivalents, the present invention is also intended to include such modifications and variations.
Those not described in detail in this specification are within the skill of the art.
Claims (6)
1. An adapting mechanism of a check flange pressure-taking type differential pressure transmitter comprises a metal flange plate (1), wherein a plurality of C-shaped movable pressing supports (2) are uniformly distributed on the metal flange plate (1) along the circumferential direction, the openings of the C-shaped movable pressing supports (2) face the circle center of the metal flange plate (1), the bottom section (2.1) of each C-shaped movable pressing support (2) is fixedly connected with the bottom of the metal flange plate (1) through a support fixing bolt (3), the top section (2.2) of each C-shaped movable pressing support (2) is provided with a locking hand wheel (5), a locking screw rod (6) and a hexagonal locking nut (7) which are used for pressing the transmitter pressure-taking flange (4) on the top surface of the metal flange plate (1), the side wall of the metal flange plate (1) is provided with a standard check pressure inlet (8), and an internal gas circuit (9) is radially arranged inside the metal flange plate (1), metal flange dish (1) centre of a circle department is equipped with along the axial standard check pressure export (10) that upwards set up, standard check pressure entry (8), inside gas circuit (9) and standard check pressure export (10) form the gas circuit of intercommunication, its characterized in that: top section (2.2) of "C" type movable pressure support (2) are equipped with guide slot (11) along top section (2.2) axial setting, last guide slot (11.1) and lower guide slot (11.2) that set up about guide slot (11) divide into, locking hand wheel (5) set up in locking screw (6) top, locking screw (6) pass in proper order and go up guide slot (11.1) and lower guide slot (11.2) and hexagonal lock nut (7) screw thread link to each other, the distance more than or equal to locking screw (6) diameter of going up guide slot (11.1) both sides, and be less than the distance of hexagonal lock nut (7) opposite side, the distance of guide slot (11.2) both sides equals the distance of hexagonal lock nut (7) opposite side down.
2. The adapter mechanism of a verification flange pressure tapping differential pressure transmitter of claim 1, wherein: and a fluororubber sealing layer (12) tightly attached to the transmitter pressure measuring flange (4) in a sealing manner is arranged on the top disc surface of the metal flange plate (1).
3. The adapter mechanism of a verification flange pressure tapping differential pressure transmitter of claim 2, wherein: still include standard pressure check table (13) that link to each other with the air supply, standard pressure check table (13) are equipped with trachea (14), be equipped with pressure indicator (15) and standard pressure export (16) on trachea (14), standard check pressure entry (8) are equipped with air circuit connector (17) rather than linking to each other, standard pressure export (16) link to each other with air circuit connector (17) through drawing pressure hose (18).
4. The adapting mechanism of a verification flange pressure tapping differential pressure transmitter of claim 3, wherein: and a pressure adjusting hand wheel (19) is arranged at the end part of the standard pressure calibration table (13).
5. The adapting mechanism of a verification flange pressure tapping differential pressure transmitter of claim 4, wherein: the thickness of the fluororubber sealing layer (12) is 2-3 mm.
6. The adapter mechanism of a verification flange pressure tapping differential pressure transmitter of claim 5, wherein: the vertical section (2.3) of the C-shaped movable compaction support (2) is divided into two sections which are hinged and connected through a movable hinge (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022445184.6U CN212988692U (en) | 2020-10-27 | 2020-10-27 | Adapter mechanism of check flange pressure-taking type differential pressure transmitter |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022445184.6U CN212988692U (en) | 2020-10-27 | 2020-10-27 | Adapter mechanism of check flange pressure-taking type differential pressure transmitter |
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| CN212988692U true CN212988692U (en) | 2021-04-16 |
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| CN202022445184.6U Active CN212988692U (en) | 2020-10-27 | 2020-10-27 | Adapter mechanism of check flange pressure-taking type differential pressure transmitter |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114235274A (en) * | 2021-12-14 | 2022-03-25 | 泰安佳业环保科技有限公司 | Pressure and differential pressure checking system and method |
-
2020
- 2020-10-27 CN CN202022445184.6U patent/CN212988692U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114235274A (en) * | 2021-12-14 | 2022-03-25 | 泰安佳业环保科技有限公司 | Pressure and differential pressure checking system and method |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: An adaptation mechanism for calibrating flange pressure differential pressure transmitter Effective date of registration: 20220124 Granted publication date: 20210416 Pledgee: Qingshan Branch of Wuhan Rural Commercial Bank Co.,Ltd. Pledgor: WUHAN JIAN'AN PETROCHEMICAL ENGINEERING Co.,Ltd. Registration number: Y2022420000028 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Granted publication date: 20210416 Pledgee: Qingshan Branch of Wuhan Rural Commercial Bank Co.,Ltd. Pledgor: WUHAN JIAN'AN PETROCHEMICAL ENGINEERING Co.,Ltd. Registration number: Y2022420000028 |