CN114166407A - Sealing device for capillary pressure test lead tube - Google Patents
Sealing device for capillary pressure test lead tube Download PDFInfo
- Publication number
- CN114166407A CN114166407A CN202111223564.8A CN202111223564A CN114166407A CN 114166407 A CN114166407 A CN 114166407A CN 202111223564 A CN202111223564 A CN 202111223564A CN 114166407 A CN114166407 A CN 114166407A
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- China
- Prior art keywords
- capillary pressure
- sealing
- pressure test
- lead tube
- sealing ring
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L19/00—Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L19/00—Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges
- G01L19/0007—Fluidic connecting means
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Fluid Pressure (AREA)
Abstract
The invention provides a sealing device for a capillary pressure test lead pipe, which comprises a sensor adapter seat for connecting a sensor, a compression nut connected with the sensor adapter seat and a sealing assembly for sealing the capillary pressure measuring pipe. The sealing device for the capillary pressure test lead tube is simple in structure and convenient to install, is reliable as a connecting device for the capillary pressure test lead tube, and can realize quick assembly and disassembly of the connecting part of the capillary pressure test lead tube and the pressure sensor.
Description
Technical Field
The invention belongs to the field of sealing devices, and particularly relates to a sealing device for a capillary pressure test lead tube.
Background
The capillary pressure measuring lead tube is used in a large amount in the tests of the whole aircraft engine and parts, the diameter of the capillary pressure testing lead is small, the capillary pressure testing lead does not occupy space, a large amount of capillary pressure testing leads can be arranged in a narrow space, and the testing leads are connected with the sensor to obtain the pressure at different positions, so that the capillary pressure measuring lead tube is widely applied in the tests of the whole aircraft engine and the parts.
At present, most of the connection modes of the capillary pressure measuring lead pipe and the pressure sensor are the technology of welding a conversion joint, and the capillary pressure measuring lead pipe is connected with other intermediate devices through the welding conversion joint. The connection mode has higher requirements on testing field personnel and equipment, and is not suitable for the requirement of quick disassembly and assembly of the capillary pressure measuring lead tube in part component tests.
Disclosure of Invention
In order to solve the problems, the invention provides a sealing device for a capillary pressure test lead tube, which is reliable and can realize quick assembly and disassembly.
The invention aims to provide a sealing device for a capillary pressure test lead pipe, which comprises a sensor adapter seat for connecting a sensor, a compression nut connected with the sensor adapter seat and a sealing component for sealing the capillary pressure test pipe,
the sensor adapter is characterized in that the sealing assembly comprises a double-end conical pressure rod and two conical sealing rings arranged at two ends of the double-end conical pressure rod, the two conical sealing rings comprise a first sealing ring and a second sealing ring, the first sealing ring is arranged in the sensor adapter, the second sealing ring is arranged in the compression nut, and the sensor adapter, the compression nut and the sealing assembly are all provided with through holes used for passing through a capillary pressure measuring pipe.
The sealing device for the capillary pressure test lead tube is further characterized in that the sensor adapter is provided with an external sensor thread for connecting a sensor and a first conical groove for placing the first sealing ring.
The sealing device for the capillary pressure test lead tube is further characterized in that bosses for respectively pushing the first sealing ring and the second sealing ring are arranged at two ends of the double-head conical pressure rod.
The sealing device for the capillary pressure test lead tube is further characterized in that the first sealing ring is configured to form a seal with the first conical groove and the capillary pressure test lead tube and keep a flow passage of the capillary pressure test lead tube open when the first sealing ring is deformed under the pushing of the double-head conical compression rod.
The sealing device for the capillary pressure test lead tube is further characterized in that the compression nut is internally provided with an internal thread for connecting the sensor adapter and a second conical groove for placing the second sealing ring.
The sealing device for the capillary pressure test lead tube is further characterized in that the second sealing ring is configured to form a seal with the second conical groove and the capillary pressure test lead tube when deformed under the pushing of the double-head conical pressure rod, and a flow channel of the capillary pressure test lead tube is kept open.
Compared with the prior art, the invention has the following beneficial effects
The sealing device for the capillary pressure test lead tube is simple in structure and convenient to install, is reliable as a connecting device for the capillary pressure test lead tube, and can realize quick assembly and disassembly of the connecting part of the capillary pressure test lead tube and the pressure sensor.
Description of the drawings:
in order to more clearly illustrate the technical solution of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is an exploded view of a sealing device for capillary pressure test leadwires according to the present invention;
FIG. 2 is a cross-sectional view showing the structure of a sealing device for a capillary pressure test lead tube according to the present invention,
wherein, 1: a sensor adapter; 2: a first seal ring; 3: a double-ended conical compression bar; 4: a second seal ring; 5: and (5) pressing the nut.
Detailed Description
In order to make the technical means, the original features, the achieved objects and the effects of the present invention easily understood, the following embodiments are specifically described with reference to the accompanying drawings.
In the description of the embodiments of the present invention, it should be understood that the terms "central", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only used for convenience in describing and simplifying the description of the present invention, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit to a number of indicated technical features. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the invention, the meaning of "a plurality" is two or more unless otherwise specified. The terms "mounted," "connected," and "coupled" are to be construed broadly and may, for example, be fixedly coupled, detachably coupled, or integrally coupled; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the creation of the present invention can be understood by those of ordinary skill in the art through specific situations.
As shown in fig. 1-2, embodiments of the present invention provide a sealing device for a capillary pressure test lead tube, wherein the capillary pressure test lead tube refers to a capillary pressure test lead tube with the diameter of 1mm and 1.2mm, the connecting device comprises a sensor adapter 1 for connecting a sensor, a compression nut 5 connected with the sensor adapter 1 and a sealing assembly for sealing the capillary piezometer tube, wherein the sealing component comprises a double-head tapered pressure lever 3 and two tapered sealing rings arranged at two ends of the double-head tapered pressure lever 3, the two conical sealing rings comprise a first sealing ring 2 and a second sealing ring 4, the first sealing ring 2 is arranged in the sensor adapter 1, the second sealing ring 4 is arranged in the compression nut 5, and through holes for passing through a capillary pressure measuring pipe are formed in the centers of the sensor adapter 1, the compression nut 5 and the sealing assembly. The conical sealing ring is made of flexible metal or high polymer plastic materials. In the using process, under the pushing of the conical compression bar boss, the sensor adapter base 1 is deformed towards the capillary pressure measuring pipe along the inner conical groove, and line sealing is formed between the sensor adapter base and the capillary pressure measuring lead pipe and the conical compression bar boss.
In some embodiments, the sensor adapter 1 is provided with an external sensor thread for connecting a sensor and a first tapered groove for placing the first sealing ring 2.
In some embodiments, the two ends of the double-ended tapered pressure rod 3 are provided with bosses for pushing the first sealing ring 2 and the second sealing ring 4 respectively. Double-end tapered compression bar 3 promotes the tapered seal circle through the boss and follows sensor adapter 1 with gland nut 5's toper recess removes, tapered seal circle produces deformation, and double-end tapered compression bar 3's boss had both promoted first sealing washer 2 and second sealing washer 4 can ensure again that first sealing washer 2 and second sealing washer 4 do not produce excessive deformation and damage the capillary pressure-measuring pipe.
In some embodiments, the first sealing ring 2 is configured to form a seal with the first tapered groove and the capillary pressure measurement lead tube and keep a flow passage of the capillary pressure measurement lead tube open when deformed by the double-headed tapered pressure rod 3.
In some embodiments, the compression nut 5 is provided with an internal thread for connecting the sensor adapter 1 and a second tapered groove for placing the second sealing ring 4.
In some embodiments, the second sealing ring 4 is configured to form a seal with the second tapered groove and the capillary pressure lead tube and keep a flow passage of the capillary pressure lead tube open when deformed by the double-headed tapered pressure rod 3. In the use process, the second sealing ring 4 deforms along the conical groove in the sensor adapter 1 towards the capillary pressure measuring pipe, and forms line sealing with the capillary pressure measuring lead pipe and the convex cone of the double-head conical pressure lever 3.
The use process of the above embodiment:
the double-head conical pressure measuring pipe 3 and the second sealing ring 4 are sequentially placed according to the diagram shown in the figure 1, the external thread of the compression nut 5 is connected with the thread of the sensor adapter, after the assembly of the sealing device is completed, the capillary pressure measuring pipe is inserted into the sealing device along the compression nut 5 and is screwed, the double-head conical pressure measuring pipe 3 pushes the first sealing ring 2 and the second sealing ring 4 to move along the conical grooves in the sensor adapter 1 and the compression nut 5 until the boss of the double-head conical pressure measuring pipe 3 is completely attached to the sensor adapter 1 and the compression nut 5, the capillary pressure measuring pipe, the first sealing ring 2 and the second sealing ring 4 form line sealing, the two seals are mutually protected, the sealing device is still stable and effective when the boss of the double-head conical pressure measuring pipe 3 is damaged or fails, and the sensor adapter 1 and the compression nut 5 form thread sealing. The sealing device provided by the invention is small and exquisite in design and convenient to install, and after the sealing device is installed, the diameter of the whole device is only 18mm, and the length of the whole device is only 35 mm.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are also included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (6)
1. A sealing device for a capillary pressure test lead tube is characterized in that the connecting device comprises a sensor adapter seat for connecting a sensor, a compression nut connected with the sensor adapter seat and a sealing component for sealing the capillary pressure measuring tube,
the sensor adapter is characterized in that the sealing assembly comprises a double-end conical pressure rod and two conical sealing rings arranged at two ends of the double-end conical pressure rod, the two conical sealing rings comprise a first sealing ring and a second sealing ring, the first sealing ring is arranged in the sensor adapter, the second sealing ring is arranged in the compression nut, and the sensor adapter, the compression nut and the sealing assembly are all provided with through holes used for passing through a capillary pressure measuring pipe.
2. The sealing device for a capillary pressure test feed-through of claim 1, wherein the sensor adapter is provided with an external sensor thread for connecting a sensor and a first tapered groove for placing the first sealing ring.
3. The sealing device for a capillary pressure test feed-through tube of claim 2, wherein the two ends of the double-ended tapered pressure rod are provided with bosses for pushing the first sealing ring and the second sealing ring, respectively.
4. The sealing device for a capillary pressure test lead tube of claim 3, wherein the first sealing ring is configured to form a seal with the first tapered groove and the capillary pressure test lead tube and keep a flow passage of the capillary pressure test lead tube open when deformed by the double-ended tapered pressure rod.
5. The sealing device for a capillary pressure test feed-through tube of claim 1, wherein said compression nut has internal threads for attaching a sensor adapter and a second tapered groove for receiving said second seal ring.
6. The sealing device for a capillary pressure test lead tube of claim 5, wherein the second sealing ring is configured to form a seal with the second tapered groove and the capillary pressure lead tube and keep a flow passage of the capillary pressure lead tube open when deformed by the double-ended tapered pressure rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111223564.8A CN114166407B (en) | 2021-10-20 | 2021-10-20 | Sealing device for capillary pressure test lead tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111223564.8A CN114166407B (en) | 2021-10-20 | 2021-10-20 | Sealing device for capillary pressure test lead tube |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114166407A true CN114166407A (en) | 2022-03-11 |
| CN114166407B CN114166407B (en) | 2023-06-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111223564.8A Active CN114166407B (en) | 2021-10-20 | 2021-10-20 | Sealing device for capillary pressure test lead tube |
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| CN (1) | CN114166407B (en) |
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2021
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| Publication number | Publication date |
|---|---|
| CN114166407B (en) | 2023-06-30 |
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