CN220270669U - Small-diameter diaphragm isolator for pressure gauge and pressure gauge - Google Patents
Small-diameter diaphragm isolator for pressure gauge and pressure gauge Download PDFInfo
- Publication number
- CN220270669U CN220270669U CN202322125636.6U CN202322125636U CN220270669U CN 220270669 U CN220270669 U CN 220270669U CN 202322125636 U CN202322125636 U CN 202322125636U CN 220270669 U CN220270669 U CN 220270669U
- Authority
- CN
- China
- Prior art keywords
- diaphragm
- pressure gauge
- section
- measuring section
- isolator
- 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.)
- Active
Links
- 238000005259 measurement Methods 0.000 claims abstract description 6
- 239000012530 fluid Substances 0.000 claims description 2
- 238000012946 outsourcing Methods 0.000 claims 1
- 239000007788 liquid Substances 0.000 abstract description 3
- 230000003116 impacting effect Effects 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000003513 alkali Substances 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 238000004043 dyeing Methods 0.000 description 1
- 230000003670 easy-to-clean Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008447 perception Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Landscapes
- Measuring Fluid Pressure (AREA)
Abstract
The utility model relates to the technical field of diaphragm pressure gauges, in particular to a small-diameter diaphragm isolator for a pressure gauge and the pressure gauge. According to the diaphragm isolator, the measuring section of the diaphragm isolator is designed into the slender and flat cylindrical shape, the filling cavity is formed between the measuring section and the first diaphragm, and the pressure measuring oil is filled, so that the outside liquid is compressed to other places when impacting the measuring section, the pressure receiving area is changed from the previous end face to the existing cylindrical face, and the pressure receiving area can be guaranteed for the diaphragm isolator with smaller diameter, so that the pressure gauge senses. If the measuring section is circular, there is some flexibility and the result of the measurement is not very accurate.
Description
Technical Field
The utility model relates to the technical field of diaphragm pressure gauges, in particular to a small-diameter diaphragm isolator for a pressure gauge and the pressure gauge.
Background
The diaphragm pressure is a diaphragm meter of a system formed by a diaphragm isolator and a general pressure instrument. The diaphragm pressure gauge is suitable for measuring the medium pressure with strong corrosion, high temperature, high viscosity, easy crystallization, easy solidification and solid suspended matters, and has the advantages of avoiding the measurement medium from directly entering a general pressure gauge, preventing sediment accumulation and being easy to clean, and is mainly used for measuring the pressure of the fluid medium in the production process of industrial departments such as petrochemical industry, alkali production, chemical fiber, dyeing, pharmacy, food, sanitary system, alkali production and the like.
CN218628784U discloses a flange diaphragm shock-resistant pressure gauge, the bottom of the fixed flange is provided with an isolating diaphragm, the diameter of the diaphragm isolator of this type is relatively large, and the isolating diaphragm at the bottom can not be installed and used in some slender places.
Disclosure of Invention
Aiming at the problems that the diameter of the conventional diaphragm isolator is relatively large and the narrow part cannot be installed and used, the utility model provides a small-diameter diaphragm isolator for a pressure gauge and the pressure gauge.
In order to achieve the above object, the present utility model provides the following technical solutions:
in one aspect, a small-diameter diaphragm isolator for a pressure gauge is provided, comprising a connecting section and a measuring section, wherein a first diaphragm is wrapped outside the measuring section, a filling cavity is formed between the measuring section and the first diaphragm, and oil is filled in the filling cavity.
According to the method, the filling cavity is arranged outside the measuring section, the original pressure induced from the end face is changed into side face induction, the area of the end face is smaller, and the area of the side face is larger than that of the end face, so that the pressure receiving area is not changed, the pressure receiving cavity can be made to be smaller in diameter, and the pressure receiving cavity can be suitable for places with pipe diameters being compared and places to be detected are narrower.
Preferably, the measuring section comprises a wide portion and a narrow portion, the measuring section is flat and cylindrical, and flat is more sensitive to the perception of liquid and the accuracy of measurement is higher than if the original cross section is circular.
Preferably, an inner hole is formed in the connecting section, a through hole is formed in the wide portion of the connecting section, the filling cavity is communicated with the inner hole through the through hole, and a second diaphragm is arranged on one side, away from the measuring section, of the inner hole. The oil in the filling cavity enters through the inner hole, and is well isolated through the second diaphragm after filling.
Preferably, the junction of the wide portion of the measuring section and the connecting section is a bevel, which is more advantageous for sealing the first diaphragm than perpendicular.
Preferably, a connecting hole is formed in one side, far away from the measuring section, of the connecting section, one end of the inner hole is located in the connecting hole, and the connecting hole is connected with the pressure gauge.
Preferably, a plug is arranged on one side, far away from the connecting section, of the measuring section, the first diaphragm wraps the plug, the end face of the measuring section is plugged through the plug, and therefore the whole pressure bearing surface is a side face, the section is not pressed completely, and the service life is prolonged.
Preferably, the outer wall of the connecting section is provided with external threads, and the small-diameter threaded connection is more convenient.
In another aspect, the present application provides a diaphragm pressure gauge comprising the small diameter diaphragm isolator described above, and a universal pressure gauge.
Compared with the prior art, the utility model has the beneficial effects that: according to the diaphragm isolator, the measuring section of the diaphragm isolator is designed into the slender and flat cylindrical shape, the filling cavity is formed between the measuring section and the first diaphragm, and the pressure measuring oil is filled, so that the outside liquid is compressed to other places when impacting the measuring section, the pressure receiving area is changed from the previous end face to the existing cylindrical face, and the pressure receiving area can be guaranteed for the diaphragm isolator with smaller diameter, so that the pressure gauge senses. If the measuring section is circular, there is some flexibility and the result of the measurement is not very accurate.
Description of the drawings:
FIG. 1 is a cross-sectional view of a small diameter diaphragm isolator for a pressure gauge as provided herein;
FIG. 2 is a schematic view of a portion of a small diameter diaphragm separator for a pressure gauge provided herein;
fig. 3 is a schematic structural view of the first separator.
The marks in the figure: 1-connecting section, 2-measuring section, 3-first diaphragm, 4-filling cavity, 5-wide portion, 6-narrow portion, 7-hole, 8-through-hole, 9-inclined plane, 10-connecting hole, 11-end cap, 12-external screw thread.
Detailed Description
The present utility model will be described in detail with reference to the accompanying drawings.
The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.
In the description of the present utility model, it should be understood that the terms "longitudinal," "transverse," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present utility model and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.
In the description of the present utility model, unless otherwise specified and defined, it should be noted that the terms "mounted," "connected," and "coupled" are to be construed broadly, and may be, for example, mechanical or electrical, or may be in communication with each other between two elements, directly or indirectly through intermediaries, as would be understood by those skilled in the art, in view of the specific meaning of the terms described above.
In one aspect, as shown in fig. 1, the application provides a small-diameter diaphragm isolator for a pressure gauge, which comprises a connecting section 1 and a measuring section 2, wherein a first diaphragm 3 is wrapped outside the measuring section 2, a filling cavity 4 is formed between the measuring section 2 and the first diaphragm 3, and oil is filled in the filling cavity 4.
In the past, install the barrier film in the bottom of flange, set up filling chamber 4 in the flange, the volume of flange to minimum response area corresponds like this is also bigger, corresponds the pipeline that some diameters are compared and is unable to measure, therefore this application has been through changing the area of being under force of pressure into cylindrical side from the terminal surface, and cylindrical side is bigger for the terminal surface area ratio, can increase length increase area.
The oil in the cylindrical filling cavity 4 can be extruded to other places when being pressed, and the measuring precision is not very high because the round slightly changed point is probably not measured, so the application divides the measuring section 2 into a wide part 5 and a narrow part 6, the measuring section 2 is flat and cylindrical and is similar to an ellipse, when one place is extruded, the other places are greatly changed compared with the original place, and the measuring precision is higher compared with the round.
The connecting section 1 is internally provided with an inner hole 7, the wide part 5 is provided with a through hole 8, the filling cavity 4 is communicated with the inner hole 7 through the through hole 8, one side, far away from the measuring section 2, of the inner hole 7 is provided with a second diaphragm, and oil enters the filling cavity 4 through the inner hole 7 and is isolated through the second diaphragm.
In order to prolong the service life of the diaphragm isolator, the measuring section 2 is wrapped by the plug 11 at one side of the measuring section 2 far away from the connecting section 1, the edge of the plug 11 is plugged by the whole first diaphragm 3, so that the measuring section 2 is completely stressed at the side surface, and the end surface can not completely feel pressure.
The connecting section 1 is far away from the measuring section 2 one side is equipped with the connecting hole, and whole minor diameter diaphragm isolator is connected with the manometer through the connecting hole. One end of the inner bore 7 is located in the connecting bore. The outer wall of the connecting section 1 is provided with an external thread 12, and the connecting section is connected with a pipeline through the external thread 12, so that the connecting section is convenient to install and detach.
The junction of the wide portion 5 of the measuring section 2 with the connecting section 1 is a bevel 9, the angle of the bevel 9 being an obtuse angle, so that the end of the first diaphragm 3 is also in an oblique transition.
On the other hand, the application also discloses a diaphragm pressure gauge, which comprises the small-diameter diaphragm isolator and the universal pressure gauge.
The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.
Claims (8)
1. The utility model provides a minor diameter diaphragm isolator for manometer, its characterized in that includes linkage segment (1) and measures section (2), measure section (2) outsourcing and have first diaphragm (3), form between measurement section (2) and first diaphragm (3) and fill chamber (4), fill chamber (4) intussuseption is filled with fluid.
2. A small diameter diaphragm separator for a pressure gauge according to claim 1, characterized in that the measuring section (2) comprises a wide portion (5) and a narrow portion (6), the measuring section (2) being flat cylindrical.
3. The small-diameter diaphragm isolator for a pressure gauge according to claim 2, wherein an inner hole (7) is arranged in the connecting section (1), the wide portion (5) is provided with a through hole (8), the filling cavity (4) is communicated with the inner hole (7) through the through hole (8), and a second diaphragm is arranged on one side of the inner hole (7) away from the measuring section (2).
4. A small diameter diaphragm separator for a pressure gauge according to claim 2, characterized in that the junction of the wide portion (5) of the measuring section (2) with the connecting section (1) is a bevel (9).
5. A small diameter diaphragm separator for a pressure gauge according to claim 3, characterized in that the side of the connection section (1) remote from the measurement section (2) is provided with a connection hole, in which connection hole one end of the inner bore (7) is located.
6. The small-diameter diaphragm isolator for a pressure gauge according to claim 1, wherein a plug (11) is arranged on one side of the measuring section (2) away from the connecting section (1), and the first diaphragm (3) wraps the plug (11).
7. A small diameter diaphragm separator for pressure gauges according to any of the claims 1-6, characterized in that the outer wall of the connection section (1) is provided with external threads (12).
8. A diaphragm pressure gauge comprising a small diameter diaphragm separator as claimed in any one of claims 1 to 7 and a universal pressure gauge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322125636.6U CN220270669U (en) | 2023-08-08 | 2023-08-08 | Small-diameter diaphragm isolator for pressure gauge and pressure gauge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322125636.6U CN220270669U (en) | 2023-08-08 | 2023-08-08 | Small-diameter diaphragm isolator for pressure gauge and pressure gauge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220270669U true CN220270669U (en) | 2023-12-29 |
Family
ID=89304595
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322125636.6U Active CN220270669U (en) | 2023-08-08 | 2023-08-08 | Small-diameter diaphragm isolator for pressure gauge and pressure gauge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220270669U (en) |
-
2023
- 2023-08-08 CN CN202322125636.6U patent/CN220270669U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN220270669U (en) | Small-diameter diaphragm isolator for pressure gauge and pressure gauge | |
| CN204422012U (en) | Anticorrosion static-pressure type liquid level transmitter | |
| CN208043318U (en) | A kind of manometer metering device free of demolition | |
| CN212513441U (en) | Pressure measuring device and liquid level measuring instrument | |
| CN216348963U (en) | Deep water level gauge convenient to assemble | |
| CN111289030B (en) | Capacitive sensor stability testing device | |
| CN204388957U (en) | A kind of fluid level transmitter | |
| CN102589630B (en) | Composite strain sensor for flow meter | |
| CN209197971U (en) | The direct outlet pressure transmitter of metal capacitance | |
| CN217930373U (en) | Multifunctional measuring instrument | |
| CN209878030U (en) | Kolbe flow sensor | |
| CN205175507U (en) | Anticorrosive liquid level changer of intelligent ceramic pressure drag | |
| CN210981441U (en) | Strain type liquid level sensor | |
| CN213579522U (en) | Float stop structure for glass float flowmeter | |
| CN215727501U (en) | Online differential pressure type density measuring device | |
| CN217332046U (en) | Straight cylinder type cement paste water density measuring device | |
| CN212903621U (en) | Fixed threaded pipe joint type thermocouple | |
| CN214464124U (en) | Ultrasonic well diameter calibration device while drilling | |
| CN216668904U (en) | Light aircraft liquid level sensor | |
| CN220472726U (en) | Stainless steel welding watchcase | |
| CN213456990U (en) | Warm-pressing flow box | |
| CN217032343U (en) | Switching frock | |
| CN218545851U (en) | Phthalic anhydride device high pressure steam pocket liquid level measurement device | |
| CN210603695U (en) | Pressure transmitter for measuring pulp pressure | |
| CN220668691U (en) | Fixed flange of oil sensor without hole opening |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |