CN219657074U - Portable flange equipment measuring device - Google Patents
Portable flange equipment measuring device Download PDFInfo
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- CN219657074U CN219657074U CN202321044621.0U CN202321044621U CN219657074U CN 219657074 U CN219657074 U CN 219657074U CN 202321044621 U CN202321044621 U CN 202321044621U CN 219657074 U CN219657074 U CN 219657074U
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- transmitter
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- measuring device
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- 238000007789 sealing Methods 0.000 claims description 14
- 238000005259 measurement Methods 0.000 claims description 6
- 238000003825 pressing Methods 0.000 abstract description 6
- 238000000034 method Methods 0.000 description 6
- 230000002159 abnormal effect Effects 0.000 description 4
- 238000009530 blood pressure measurement Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 239000000498 cooling water Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012795 verification Methods 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Measuring Fluid Pressure (AREA)
Abstract
The utility model relates to the field of overhaul equipment, in particular to a portable flange equipment measuring device. The portable flange equipment measuring device includes: the device comprises a transmitter, a flange plate, an adapter, an instrument pipeline and a pressure calibrator; the positive pressure side flange and the negative pressure side flange of the transmitter are respectively connected with a flange plate through fixing elements; the flange plate is embedded with a diaphragm pressure sensing groove of the differential pressure transmitter; the center of the flange plate is provided with a flange interface; one side of the instrument pipeline is connected with a flange interface of the flange plate through an adapter, and the other side of the instrument pipeline is connected with a pressure calibrator; the flange plate is provided with a plurality of through hole sites and strip reducing rails, and each reducing rail is communicated with one hole site. The flange type pressure transmitter calibration device is suitable for connection of flange type equipment with multiple sizes, can measure the actual pressure of the mounting port of the flange type equipment, and can realize the calibration of the flange pressure transmitter through pressing.
Description
Technical Field
The utility model relates to the field of overhaul equipment, in particular to a portable flange equipment measuring device.
Background
In nuclear power plants or other industrial fields, flange type mounting port pressure tapping is a common equipment connection mode. The interface is correspondingly provided with a flange type transmitter, and pressure can be converted into an electric signal through pressure sensing of a diaphragm so as to realize on-site and remote display. One application of the flange type transmitter is to take pressure measurement for a secondary filter screen and a ball collecting net pressure port of a condenser of a circulating water system of a nuclear power station and check an installation instrument. In order to ensure that the cooling water entering the condenser has qualified cleanliness, the cooling water needs to be cleaned in a secondary filter screen and a ball collecting net related device, and a flange connection mode is selected for pressure taking because sand and silt contained in the device easily cause blockage of an instrument pipe. The differential pressure value of the secondary filter screen and the ball collecting net filter screen is measured, so that the back flushing device is started to ensure the filtering effect on the condenser cooling water.
The pressure gauge in front of and behind the filter screen of the condenser is a flange differential pressure transmitter, the positive pressure side of the instrument is arranged in front of the filter screen, the negative pressure side of the instrument is arranged behind the filter screen and used for measuring the differential pressure in front of and behind the filter screen, and the installation mode is shown in figure 1.
When the numerical value of the differential pressure between the front and the rear of the filter screen is abnormal, personnel cannot judge whether the reason of the actual high differential pressure is that the filter screen is actually blocked, or whether the data display of the transmitter is abnormal due to the fact that the pressure sensing capability of the diaphragm is reduced, and a verification and measurement device does not exist on site to judge that specific equipment is abnormal. According to the normal calibration flow, the transmitter is required to be dismantled and sent to an identification department to calibrate the instrument, and after the instrument problem is confirmed, the equipment is required to be shut down and the filter screen is required to be replaced; and if the instrument is judged to be in a problem, replacing the instrument. The calibration process severely restricts the on-site defect elimination progress and increases maintenance cost.
Disclosure of Invention
The utility model aims to solve the technical problems that: the portable flange equipment measuring device is suitable for connection of flange equipment of multiple size types, can measure actual pressure of a flange equipment mounting port, and can realize verification of a flange pressure transmitter by pressing.
The utility model provides a portable flange equipment measuring device, comprising: the device comprises a transmitter, a flange plate, an adapter, an instrument pipeline and a pressure calibrator;
the positive pressure side flange and the negative pressure side flange of the transmitter are respectively connected with a flange plate through fixing elements;
the flange plate is embedded with a diaphragm pressure sensing groove of the differential pressure transmitter; the center of the flange plate is provided with a flange interface;
one side of the instrument pipeline is connected with a flange interface of the flange plate through an adapter, and the other side of the instrument pipeline is connected with a pressure calibrator;
the flange plate is provided with a plurality of through hole sites and strip reducing rails, and each reducing rail is communicated with one hole site.
Preferably, a sealing gasket is arranged between the positive pressure side flange and the flange plate of the transmitter;
a sealing gasket is arranged between the negative pressure side flange and the flange plate of the transmitter.
Preferably, the pressure sensing groove is cylindrical, has a diameter of 150-170 mm and a depth of 0.3-0.5 cm.
Preferably, the reducing tracks are symmetrically arranged near the edge of the flange plate.
Preferably, the hole sites are reserved at 0 °, 90 °, 180 ° and 270 ° respectively on the flange plate.
Preferably, the diameter of the flange plate is 200-250 mm.
Preferably, the sealing gasket is annular and is arranged at the outer side of the pressure sensing groove, and the inner diameter of the sealing gasket is 160-175 mm.
Preferably, the fixing element comprises a bolt stud and a nut,
the number of the bolt columns is 4-8.
Preferably, the type of the adapter is 1/2NPT to 3/8 ferrule adapter,
the joint model of the joint of the other side of the instrument pipeline and the pressure calibrator is 3/8 cutting ferrule-to-M20.
Preferably, the flange interface is a 1/2NPT internal threaded interface.
Compared with the prior art, the portable flange equipment measuring device has the following beneficial effects:
a. the portable flange equipment measuring device can be used for realizing the on-line measurement of the pipeline pressure of the process system, and the safety evaluation of the process system can be realized by means of pressure measurement and calculation. The safe and reliable operation of power plant equipment is greatly improved, and misjudgment of operators caused by abnormal differential pressure data due to poor instrument performance is avoided.
b. The device is simple and convenient to install and wide in applicability, and can be basically suitable for verifying flange type interface instruments in the market by properly adjusting the assembly device.
Drawings
FIG. 1 shows a field installation schematic of a flange-type transmitter;
FIG. 2 shows a schematic diagram of a portable flange equipment measuring device;
FIG. 3 illustrates an assembled front side view of a portable flange apparatus measurement device;
FIG. 4 shows a top view of the flange;
FIG. 5 shows a front view of the flange;
in the drawing the view of the figure,
1-a flange plate; 2-a sealing gasket; 3-a fixing element; 4-adapter; 5-meter line; 6-a pressure calibrator; 7-a transmitter; 8-a filter screen.
Detailed Description
For a further understanding of the present utility model, embodiments of the utility model are described below in conjunction with the examples, but it should be understood that these descriptions are merely intended to illustrate further features and advantages of the utility model, and are not limiting of the utility model.
According to the utility model, the device to be tested is connected to the equipment interface through the bolts, the actual pressure value is directly read through the pressure calibrator in the device, and the device can also be used for carrying out combined connection on positive and negative pressure measurement and pressurization through a plurality of portable devices so as to calibrate the performance of the instrument.
The embodiment of the utility model discloses a portable flange equipment measuring device, as shown in fig. 2, comprising: the device comprises a transmitter 7, a flange plate 1, an adapter 4, an instrument pipeline 5 and a pressure calibrator 6;
the positive pressure side flange and the negative pressure side flange of the transmitter 7 are respectively connected with a flange plate 1 through a fixing element 3;
the flange plate 1 is embedded with a diaphragm pressure sensing groove of a differential pressure transmitter; a flange interface is arranged in the center of the flange plate 1;
one side of the instrument pipeline 5 is connected with a flange interface of the flange plate 1 through the adapter 4, and the other side of the instrument pipeline 5 is connected with the pressure calibrator 6;
the flange plate 1 is provided with a plurality of through hole sites and strip reducing rails, and each reducing rail is communicated with one hole site.
In the present utility model, the transmitter 7 is a pressure transmitter, and a flange is connected to both the positive pressure side and the negative pressure side.
The positive pressure side flange and the negative pressure side flange of the transmitter 7 are respectively connected with a flange plate 1 through a fixing element 3;
the fixing element 3 is a stud and a nut. The number of the bolt columns is 4-8.
The diameter of the flange plate 1 is preferably 200-250 mm, and the flange plate can be matched with a plurality of connecting equipment ports and a plurality of bolt columns.
The flange plate 1 is embedded with a diaphragm pressure sensing groove of a differential pressure transmitter; the pressure sensing groove is cylindrical, the diameter is preferably 150-170 mm, more preferably 160mm, and the depth is 0.3-0.5 cm. The pressure sensing groove is used for realizing that the pressure sensing diaphragm of the pressure transmitter is subjected to pressure deformation to provide allowance, and the embedded groove just meets the protruding part of the diaphragm.
The center of the flange plate 1 is provided with a flange interface which is a 1/2NPT internal thread interface and provides a universal adapter for installing the pressure checking device.
The flange plate 1 is provided with a plurality of through hole sites and strip reducing rails, and each reducing rail is communicated with one hole site.
The reserved redundancy of the reducing track can be properly adjusted to the installation position. The reducing rails are symmetrically arranged and are close to the edge of the flange plate.
Hole sites are reserved at 0 degrees, 90 degrees, 180 degrees and 270 degrees respectively, and more than 4/6/8 bolt column fixing modes can be realized.
A sealing gasket is arranged between the positive pressure side flange and the flange plate of the transmitter; a sealing gasket is arranged between the negative pressure side flange and the flange plate of the transmitter.
The gasket is used for sealing, the sealing effect is met through pressure deformation, the sealing gasket is annular and is arranged on the outer side of the pressure sensing groove, and the inner diameter of the sealing gasket is 160-175 mm.
Meter line 5: the pressure gauge is used for guiding out the pressure of the medium to the pressure gauge, and a common 3/8 meter pipeline is used as an intermediate transmission device.
One side of the instrument pipeline 5 is connected with a flange interface of the flange plate 1 through the adapter 4, and the other side of the instrument pipeline 5 is connected with the pressure calibrator 6 to realize the connection between devices;
the type 4 of the adapter is preferably a 1/2 NPT-to-3/8 ferrule adapter,
the joint model of the joint of the other side of the instrument pipeline and the pressure calibrator is 3/8 cutting ferrule-to-M20.
Pressure calibrator 6: the pressure measuring and pressing device is a universal pressure measuring and pressing device, and pressure verifiers with different precision and different grades can be arranged according to the actual pressure range in the measured equipment, and the interfaces of the pressure verifiers with different grades are universal interfaces which are M20 interfaces. The external pressure calibrator is connected through a threaded clamping sleeve, so that pressure conduction between the device and the calibrated meter is realized.
The method for detecting the transmitter by using the portable flange equipment measuring device comprises the following steps:
1) The flange type equipment pressure taking step:
a. and selecting a pressure calibrator with a proper range according to the tested equipment interface to assemble the calibration device.
b. And selecting a proper bolt fixing device according to the size of the flange surface interface of the tested equipment. The flange connection equipment is usually fixed by 8 bolts, and the checking process selects 4 binding posts for measurement temporarily.
c. The device can directly read the actual pressure measurement in the flange type equipment.
2) Calibrating the flange differential pressure transmitter:
a. according to the measuring range of the measured transmitter, the flange plate and the pressure calibrator are respectively arranged on the positive pressure sensitive side and the negative pressure sensitive side of the transmitter, as shown in figure 2.
b. And respectively pressing the positive pressure side membrane and the negative pressure side membrane through a pressure calibrator until the actual operation pressure of the site is reached, and simulating the static pressure value of the site.
c. And continuously pressing the positive pressure side connecting device until the measuring range of the instrument is 0%, 25%, 50%, 75% and 100% of the pressure value displayed by the transmitter.
d. And (3) calculating and verifying whether the instrument meets the actual field requirement or not through the accuracy of the output current of the measured transmitter corresponding to 4mA, 8mA, 12mA, 16mA and 20mA, so that the verification effect of the transmitter is achieved.
The above description of the embodiments is only for aiding in the understanding of the method of the present utility model and its core ideas. It should be noted that it will be apparent to those skilled in the art that various modifications and adaptations of the utility model can be made without departing from the principles of the utility model and these modifications and adaptations are intended to be within the scope of the utility model as defined in the following claims.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present utility model is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A portable flange equipment measuring device, comprising: the device comprises a transmitter, a flange plate, an adapter, an instrument pipeline and a pressure calibrator;
the positive pressure side flange and the negative pressure side flange of the transmitter are respectively connected with a flange plate through fixing elements;
the flange plate is embedded with a diaphragm pressure sensing groove of the differential pressure transmitter; the center of the flange plate is provided with a flange interface;
one side of the instrument pipeline is connected with a flange interface of the flange plate through an adapter, and the other side of the instrument pipeline is connected with a pressure calibrator;
the flange plate is provided with a plurality of through hole sites and strip reducing rails, and each reducing rail is communicated with one hole site.
2. The portable flange equipment measurement device of claim 1, wherein a gasket seal is disposed between the positive side flange of the transmitter and the flange plate;
a sealing gasket is arranged between the negative pressure side flange and the flange plate of the transmitter.
3. The portable flange equipment measuring device of claim 2, wherein the pressure sensing groove is cylindrical, has a diameter of 150-170 mm and a depth of 0.3-0.5 cm.
4. The portable flange equipment measuring device of claim 1, wherein the reducing track is symmetrically disposed proximate an edge of the flange.
5. The portable flange equipment measuring device of claim 4, wherein the flanges are reserved with holes at 0 °, 90 °, 180 °, 270 °, respectively.
6. The portable flange equipment measuring device of claim 1, wherein the flange diameter is 200-250 mm.
7. A portable flange apparatus measuring device according to claim 3, wherein the sealing gasket is ring-shaped and is installed at the outer side of the pressure sensing groove, and the inner diameter of the sealing gasket is 160-175 mm.
8. The portable flange apparatus measuring device of claim 1, wherein the securing element comprises 4-8 bolt posts and nuts.
9. The portable flange equipment measuring device of claim 1, wherein the adapter is a 1/2NPT to 3/8 ferrule adapter,
the joint model of the joint of the other side of the instrument pipeline and the pressure calibrator is 3/8 cutting ferrule-to-M20.
10. The portable flange apparatus measurement device of claim 9, wherein the flange interface is a 1/2NPT internal threaded interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321044621.0U CN219657074U (en) | 2023-05-05 | 2023-05-05 | Portable flange equipment measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321044621.0U CN219657074U (en) | 2023-05-05 | 2023-05-05 | Portable flange equipment measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219657074U true CN219657074U (en) | 2023-09-08 |
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ID=87879398
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321044621.0U Active CN219657074U (en) | 2023-05-05 | 2023-05-05 | Portable flange equipment measuring device |
Country Status (1)
| Country | Link |
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| CN (1) | CN219657074U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117537976A (en) * | 2024-01-09 | 2024-02-09 | 中国科学院武汉岩土力学研究所 | Large-tonnage large-size pressure pillow calibration device and method |
-
2023
- 2023-05-05 CN CN202321044621.0U patent/CN219657074U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117537976A (en) * | 2024-01-09 | 2024-02-09 | 中国科学院武汉岩土力学研究所 | Large-tonnage large-size pressure pillow calibration device and method |
| CN117537976B (en) * | 2024-01-09 | 2024-05-17 | 中国科学院武汉岩土力学研究所 | Large-tonnage large-size pressure pillow calibration device and method |
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