CN220356607U - Fluid distribution assembly and leak detection or conditioning device - Google Patents
Fluid distribution assembly and leak detection or conditioning device Download PDFInfo
- Publication number
- CN220356607U CN220356607U CN202321400678.XU CN202321400678U CN220356607U CN 220356607 U CN220356607 U CN 220356607U CN 202321400678 U CN202321400678 U CN 202321400678U CN 220356607 U CN220356607 U CN 220356607U
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- fluid
- distribution assembly
- channel
- nozzle
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- 239000012530 fluid Substances 0.000 title claims abstract description 108
- 230000003750 conditioning effect Effects 0.000 title claims abstract description 10
- 238000001514 detection method Methods 0.000 title claims description 11
- 238000010438 heat treatment Methods 0.000 claims abstract description 50
- 238000007599 discharging Methods 0.000 claims abstract description 26
- 239000004020 conductor Substances 0.000 claims abstract description 4
- 238000004891 communication Methods 0.000 claims description 3
- 238000007789 sealing Methods 0.000 description 12
- 230000001143 conditioned effect Effects 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 1
- 239000011231 conductive filler Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000000395 magnesium oxide Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
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- Examining Or Testing Airtightness (AREA)
Abstract
The application provides a fluid distribution assembly and corresponding leak hunting or conditioning apparatus that avoid rubber seal low temperature to fail through active heating, the fluid distribution assembly includes: a body made of a thermally conductive material; at least one group of fluid discharging nozzles which are connected to the upper side of the main body and are arranged front and back, each group of fluid discharging nozzles comprises at least one fluid discharging nozzle which is arranged left and right, and a groove is formed at the top end of each fluid discharging nozzle; the fluid discharge nozzle is vertically arranged, a discharge channel is coaxially arranged in the fluid discharge nozzle, and the upper end of the discharge channel is communicated with the groove; the fluid feeding nozzle is arranged on the main body and is communicated to the bottom of the discharging channel through a flow channel arranged in the main body; and the heating component is arranged in the main body to heat the groove.
Description
Technical Field
The application relates to the technical field of detection, in particular to a fluid distribution assembly and a leakage detection or conditioning device.
Background
The sensor must be acceptable to the market after being detected, wherein for the sensor with a fluid interface such as a pressure sensor, the leak detection is needed to ensure the tightness of the sensor; signal measurement and conditioning under different fluid parameter conditions (e.g., pressure) are also required to output an electrical signal that is linearly related to the fluid medium. These sensors are also required to have to measure reliably in the desired ambient temperature range. In the case of testing, the fluid connections are usually sealed to the test device by rubber seals.
When the sensor detects at low temperature, the inventor finds that the rubber sealing element connected with the mouth of the distribution assembly can be crystallized and hardened to lose elasticity, so that the sealing between the sensor and the distribution assembly is invalid, and the leakage detection and conditioning results are inaccurate.
The statements in this section merely provide background information related to the present application and may not constitute prior art.
Disclosure of Invention
In response to the deficiencies of the prior art, the present application provides a fluid distribution assembly to avoid seal failure between a fluid interface and a detection device when detecting the cryogenic characteristics of a sensor having the fluid interface.
In order to achieve the above purpose, the present application provides the following technical solutions: a fluid distribution assembly, comprising:
a body made of a thermally conductive material;
at least one group of fluid discharging nozzles which are connected to the upper side of the main body and are arranged front and back, each group of fluid discharging nozzles comprises at least one fluid discharging nozzle which is arranged left and right, and a groove is formed at the top end of each fluid discharging nozzle; the fluid discharge nozzle is vertically arranged, a discharge channel is coaxially arranged in the fluid discharge nozzle, and the upper end of the discharge channel is communicated with the groove;
the fluid feeding nozzle is arranged on the main body and is communicated to the bottom of the discharging channel through a flow channel arranged in the main body;
and the heating component is arranged in the main body to heat the groove.
Preferably, the heating assembly comprises at least one heating element disposed within a heating element cavity formed within the body.
Preferably, the heating element cavity comprises a hole extending from side to side and correspondingly accommodating the heating element, and the heating element comprises a rod-shaped heating element arranged in the hole.
Preferably, at least one of said heating elements is arranged between each adjacent two sets of fluid discharge nozzles.
Preferably, one heating element is arranged between every two adjacent groups of fluid discharging nozzles, and the heating elements are arranged at the front and rear central positions of the two corresponding groups of fluid discharging nozzles.
Preferably, each group of fluid discharge nozzles is provided with two heating elements, which are symmetrically positioned on the front and rear sides of the axis of the corresponding fluid discharge nozzle.
Preferably, the main body is provided with a locking hole which is vertically communicated with the hole downwards, and a locking piece which locks the heating element on the main body is arranged in the locking hole.
Preferably, the flow channel comprises a first channel and second channels which are communicated with the fluid discharge nozzles of each group, and the first channel is communicated with each second channel and one end of each second channel is connected to the fluid feed nozzle.
Preferably, an annular pressing ring is fixed at the upper end of the fluid discharge nozzle, and the inner periphery of the pressing ring is positioned on the inner side of the wall of the groove.
Leak detection or conditioning apparatus comprising the above fluid distribution assembly are also claimed.
Drawings
FIG. 1 is a perspective view of a fluid distribution assembly of a first embodiment;
FIG. 2 is a top view of the fluid distribution assembly of the first embodiment;
FIG. 3 is a cross-sectional view of the fluid distribution assembly of the first embodiment taken along the line shown in FIG. 2;
FIG. 4 is a cross-sectional view of the fluid distribution assembly of the first embodiment taken along the line shown in FIG. 2;
FIG. 5 is a rotational cross-sectional view of the fluid distribution assembly of the first embodiment, taken along the line shown in FIG. 2;
FIG. 6 is a rotational cross-sectional view of the fluid distribution assembly of the variation of the first embodiment along the line shown in FIG. 2;
FIG. 7 is a rotational cross-sectional view of the fluid distribution assembly of the second embodiment taken along the line shown in FIG. 2;
in the figure: 1. a main body; 20. a groove; 2. a fluid discharge nozzle; 3. a pressing ring; 4. a power supply line; 50. a hole; 51. a locking hole; 5. a heating element; 610. a fluid feed nozzle; 61. a first channel; 62. a second channel; 63. a discharge channel; 6. a mounting hole; 7. an additional plate;
Detailed Description
The technical solutions of the present application will be clearly and completely described below with reference to the accompanying drawings. The following examples are illustrative only and are not to be construed as limiting the present application. In the following description, the same reference numerals are used to designate the same or equivalent elements, and duplicate descriptions are omitted.
In the description of the present application, it should be understood that the azimuth or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "left", "right", etc. are based on the azimuth or positional relationship shown in the drawings, or the azimuth or positional relationship in which the product of the present application is conventionally put in use, or the azimuth or positional relationship as is conventionally understood by those skilled in the art, are merely for convenience of description of the present application and for simplification of description, and are not indicative or implying that the apparatus or element to be referred to must have a specific azimuth, be configured and operated in a specific azimuth, and therefore should not be construed as limiting the present application.
In addition, the terms "mounted," "connected," "coupled," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the terms in this application can be understood as appropriate by one of ordinary skill in the art.
It should be further understood that the term "and/or" as used in this specification and the corresponding claims refers to any and all possible combinations of one or more of the listed items.
As shown in fig. 1 to 5, the fluid distribution assembly of the present embodiment includes a main body 1, and eight groups of fluid discharge nozzles 2 arranged at intervals are connected to the upper side of the main body 1, each group including two fluid discharge nozzles 2 arranged at intervals from left to right. A groove 20 is formed at the top end of the fluid discharging nozzle 2; the fluid discharge nozzle 2 is vertically arranged and coaxially provided with a discharge channel 63 therein, and the upper end of the discharge channel 63 penetrates to the groove 20. When the fluid interface of the sensor is connected, the fluid interface can be connected to the fluid discharging nozzle 2 through an external pressing device at a certain pressure, and the fluid interface and the groove 20 are sealed under the pressure through a rubber sealing element such as a rubber sealing ring. The main body 1 is provided with a fluid feed nozzle 610 for introducing fluid from a fluid source, which communicates to the bottom of the discharge passage 63 through a flow passage provided in the main body 1. The fluid distribution assembly further comprises a heating assembly for heating the groove 20 so as to locally heat the rubber sealing element in the groove 20, thereby avoiding poor sealing caused by the loss of elasticity of the rubber sealing element when the sensor to be detected is in a low-temperature environment, and further avoiding pressurized leakage or even low-pressure leakage.
Wherein the heating assembly may comprise at least one heating element 5 arranged in a heating element cavity formed in the body 1. Preferably, the heating element cavity comprises a bore extending from side to side and correspondingly receiving said heating elements, each heating element comprising a rod-shaped heating element disposed within the bore. The main body 1 is preferably made of metal such as stainless steel, and in this case, the rod-shaped heating elements may include a metal tube, an electric heating wire disposed in the metal tube, and a heat conductive filler filled therebetween in an insulating manner, such as sintered magnesia ceramic or dense powder thereof. This allows good heat conduction and insulation to be achieved simultaneously with the body 1.
Wherein a heating element 5 is arranged between every two adjacent groups of fluid discharge nozzles 2. The heating elements 5 are preferably arranged in the front-rear central positions of the corresponding two sets of fluid discharge nozzles 2.
In other variations, as shown in fig. 6, each set of fluid discharge nozzles 2 is provided with two or more heating elements 5, for example, two heating elements 5 are provided between two adjacent sets of fluid discharge nozzles 2, and are symmetrically located on the front and rear sides of the axis of the fluid discharge nozzle 2 at the middle position of the two heating elements, and the discharge channel 63 is disposed coaxially within the fluid discharge nozzle 2 at the most limit. The heating element 5 protrudes into the hole 50 from the front and rear ends of the hole 50. The main body 1 may be provided with a locking hole 501 vertically communicating with the hole 50 downward, and a locking member such as a locking screw for locking the heating element 5 to the main body 1 is provided in the locking hole 501.
The flow channel may include a first channel 61 and second channels 62 corresponding to the fluid discharge nozzles 2, where the first channel 61 communicates with each second channel 62 and has one end connected to the fluid feed nozzle 610.
In other variant embodiments, the upper end of the fluid tap 2 is fixed with an annular pressing ring 3, the inner periphery of the pressing ring 3 being located inside the wall of the recess 20, so that a sealing ring can be arranged in a sealing groove formed on the outer wall of the fluid connection, and after the fluid connection is inserted into the recess 20, a downward sealing pressure can be provided to the sealing ring by the inner periphery of the pressing ring 3. The pressing ring 3 can be fixed on the top of the fluid discharging nozzle 2 through screws.
Please refer to fig. 7 in combination. In the second embodiment, an additional plate 7 which is buckled downwards against the upper end surface of the main body 1 is added on the basis of the first embodiment, and the fluid discharging nozzle 2 upwards penetrates through the additional plate 7. The provision of the holes 50 and locking holes 51 in the additional plate 7 instead of in the body 1 makes it possible, in the case of a smaller radial dimension of the fluid tap 2, to arrange the heating element 5 closer to the recess 20 and further away from the discharge channel 63, thus reducing the effect on the fluid in the discharge channel 63. Still further, the gap between the additional plate 7 and the main body 1 is filled with a thermally conductive material, such as thermally conductive silicone grease.
In the above embodiments and variations thereof, it is also possible to provide only one set of fluid discharge nozzles 2, and/or to include only one fluid discharge nozzle 2 per set of fluid discharge nozzles 2, so that similar effects can be achieved, namely, heating of the rubber seal in the groove 20 is formed, so as to avoid inaccuracy of the leak detection and conditioning results, but only difference in detection efficiency.
When the sensor to be detected or conditioned is detected or conditioned, a fluid interface of the sensor is connected with the fluid discharging nozzle 2. The fluid supply unit is connected to the fluid feed nozzle 610 to input a pressure fluid thereto. The leak detector controls and records pressure change data monitored in real time by a pressure detector arranged in the fluid supply unit when the element is at a low temperature to be tested so as to judge the sealing performance of the element at the low temperature; the conditioning instrument controls and records pressure change data monitored in real time by a pressure detector arranged in the fluid supply unit, receives output signals of the element to be conditioned, and conditions the output signals to achieve output characteristics meeting preset requirements.
The scope of the present disclosure is defined not by the detailed description but by the claims and their equivalents, and all modifications within the scope of the claims and their equivalents are to be construed as being included in the present disclosure.
Claims (10)
1. A fluid distribution assembly, comprising:
a body (1) made of a heat-conducting material;
at least one group of fluid discharging nozzles (2) which are connected to the upper side of the main body (1) and are arranged front and back, each group of fluid discharging nozzles (2) comprises at least one fluid discharging nozzle (2) which is arranged left and right, and a groove (20) is formed at the top end of each fluid discharging nozzle (2); the fluid discharging nozzle (2) is vertically arranged, and a discharging channel (63) is coaxially arranged in the fluid discharging nozzle, and the upper end of the discharging channel (63) penetrates through the groove (20);
a fluid feeding nozzle (610) arranged on the main body (1) is communicated to the bottom of the discharging channel (63) through a flow channel arranged in the main body (1);
and a heating component arranged in the main body (1) for heating the groove (20).
2. A fluid distribution assembly according to claim 1, characterized in that the heating assembly comprises at least one heating element (5) arranged in a heating element cavity formed in the body (1).
3. The fluid distribution assembly of claim 2 wherein the heating element cavity includes a bore (50) extending from side to side and correspondingly receiving the heating element, the heating element including a rod-shaped heating element disposed within the bore (50).
4. A fluid distribution assembly according to claim 2, characterized in that at least one of said heating elements (5) is arranged between each adjacent two groups of fluid discharge nozzles (2).
5. A fluid distribution assembly according to claim 4, wherein one heating element (5) is arranged between each two adjacent sets of fluid discharge nozzles (2), the heating elements (5) being arranged in front-rear central positions of the corresponding two sets of fluid discharge nozzles (2).
6. A fluid distribution assembly according to claim 2, characterized in that each group of fluid discharge nozzles (2) is provided with two heating elements (5) in correspondence, the two heating elements (5) being symmetrically located on both front and rear sides of the axis of the respective fluid discharge nozzle (2).
7. A fluid distribution assembly according to claim 3, characterized in that the additional plate (7) is provided with a locking hole (51) which is vertically connected to the hole (50) downwards, and a locking member which locks the heating element (5) to the main body (1) is arranged in the locking hole (51).
8. The fluid distribution assembly of claim 2, wherein the flow channel comprises a first channel (61) and second channels (62) in corresponding communication with each set of fluid discharge nozzles (2), the first channel (61) being in communication with each second channel (62) and being connected at one end to the fluid feed nozzle (610).
9. A fluid distribution assembly according to claim 2, characterized in that the upper end of the fluid discharge spout (2) is fixed with an annular pressure ring (3), the inner periphery of the pressure ring (3) being located inside the wall of the recess (20).
10. A leak detection or conditioning apparatus comprising a fluid distribution assembly as claimed in any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321400678.XU CN220356607U (en) | 2023-06-01 | 2023-06-01 | Fluid distribution assembly and leak detection or conditioning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321400678.XU CN220356607U (en) | 2023-06-01 | 2023-06-01 | Fluid distribution assembly and leak detection or conditioning device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220356607U true CN220356607U (en) | 2024-01-16 |
Family
ID=89507324
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321400678.XU Active CN220356607U (en) | 2023-06-01 | 2023-06-01 | Fluid distribution assembly and leak detection or conditioning device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220356607U (en) |
-
2023
- 2023-06-01 CN CN202321400678.XU patent/CN220356607U/en active Active
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