CN216666593U - Gas circuit overload protection device - Google Patents
Gas circuit overload protection device Download PDFInfo
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- CN216666593U CN216666593U CN202123170467.5U CN202123170467U CN216666593U CN 216666593 U CN216666593 U CN 216666593U CN 202123170467 U CN202123170467 U CN 202123170467U CN 216666593 U CN216666593 U CN 216666593U
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Abstract
The utility model relates to an air circuit overload protection device.A gas circuit channel is arranged in a cavity on a preset axis of the cavity; inside the cavity; arranging a gas circuit overload protection mechanism on a preset section of the gas circuit channel; the air path overload protection mechanism is used for blocking the transmission direction of air in the air path channel. The gas path channel is arranged in the cavity on the preset axis of the cavity; inside the cavity; arranging an air path overload protection mechanism on a preset section of the air path channel; the gas channel is used for blocking the transmission direction of the gas in the gas channel; the problem that in the prior art, the detector of the instrument is damaged due to overlarge inflow gas flow and pressure is solved; the technical problem that in the prior art, when a pressure reducing valve and a mass flow controller are added in a gas circuit system to control the flow and the pressure of the inflowing gas, the system fails suddenly when the pressure of the system exceeds the safe pressure, so that the detector of the instrument is damaged due to the increase of the gas flow and the pressure is solved.
Description
Technical Field
The embodiment of the utility model relates to a gas circuit protection device, in particular to a gas circuit overload protection device.
Background
At present, the radioactive detection instrument and equipment using a gas flow type proportional counter tube as a radiation detector are all provided with a working gas path system, so that the working gas can directionally flow through the detector under certain pressure. Most of the detectors are imported, and the window is extremely thin and easy to damage. The device has the defects that the detector window is broken due to overlarge inflow gas flow and pressure fluctuation, the maintenance is frequent, the use trouble is caused for users, and the economic loss is also large.
In order to protect the working gas circuit system and prevent the gas circuit system from being damaged due to the excessive gas flow and pressure, a pressure reducing valve and a mass flow controller are usually added in the gas circuit system to control the flow and pressure of the gas flowing in. However, existing mass flow controllers are typically thin window detectors that fail suddenly when the system pressure exceeds a safe pressure, causing airflow and pressure build-up to damage the instrument. For some devices that need to avoid the gas flow and pressure from being too high to damage the detector, the mass flow controller is used only to control the flow and pressure, and even if the mass flow controller fails, a large economic loss is caused.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a gas circuit overload protection device which can effectively protect an expensive detector under the condition that a mass flow controller fails accidentally, and avoid great economic loss.
In order to achieve the above object, an embodiment of the present invention designs an air path overload protection apparatus, including:
a cavity;
a gas path channel; the gas path channel is arranged in the cavity on a preset axis of the cavity;
an air circuit overload protection mechanism; inside the cavity; the preset section of the gas path channel is provided with the gas path overload protection mechanism;
the gas path overload protection mechanism is used for blocking the transmission direction of the gas in the gas path channel.
Furthermore, the air path overload protection mechanism is arranged on the air path channel, moves back and forth along the preset axis and blocks one side of the air path channel.
Further, an air inlet and an air outlet are respectively arranged on two sides of the cavity along the preset axis.
Further, the cavity further comprises:
the mounting seat is arranged on one side of the cavity; a notch is formed in one side of the mounting seat along the preset axis, and one end of the notch is provided with a section of internal thread; an air inlet is formed in the other side of the mounting seat; the air inlet is communicated with the notch;
the end cover is in threaded connection with the mounting seat, and a section of external thread is arranged on the end cover on one side of the end cover and is in threaded connection with the internal thread arranged on the mounting seat; an air outlet is formed in the end cover at the position of the preset axis; a lug is arranged on one side of the external thread; the lug is embedded into the notch; the air outlet penetrates through the whole end cover from one side of the lug.
Further, the air outlet and the notch form a cavity; an air circuit overload protection mechanism is arranged in the cavity; the air inlet, the air outlet and the notch form an air path channel.
Further, gas circuit overload protection mechanism, still include:
the plug is arranged on one side of the air outlet; the plug is made of soft material;
the spring is arranged on the outer side of the plug; one side of the spring is sleeved on the lug; the other side of the spring is sleeved on the outer side of the plug;
the other side of the plug is fixed with one side of the baffle;
and the bulge is fixed on the other side of the baffle.
Furthermore, one side of the plug is embedded into the baffle, and the plug and the baffle are of an integral structure.
Further, the bulge is embedded into the air inlet.
Further, a sealing ring is arranged between the end cover and the mounting seat; a sealing groove is arranged on the mounting seat in a surrounding manner; and the sealing ring is arranged in the sealing groove.
Further, the gas circuit overload protection device is respectively in threaded connection with the gas circuit connector.
Compared with the prior art, the utility model adopts the structure that the air channel is arranged in the cavity on the preset axis of the cavity; inside the cavity; arranging an air path overload protection mechanism on a preset section of the air path channel; the gas pipe is used for blocking the transmission direction of the gas in the gas path channel when the gas pressure and the flow are abnormal; the problem that in the prior art, the detector of the instrument is damaged due to overlarge inflow gas flow and pressure is solved; the technical problem that in the prior art, a pressure reducing valve and a mass flow controller are additionally arranged in a gas circuit system to control the flow and pressure of the gas flowing in, and when the mass flow controller usually fails suddenly when the system pressure exceeds the safety pressure, the gas flow and the pressure are increased to damage a detector of an instrument is solved.
Drawings
FIG. 1 is a schematic perspective view of the present invention;
fig. 2 is a schematic view in full section of fig. 1.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail below with reference to the accompanying drawings. However, it will be appreciated by those of ordinary skill in the art that numerous technical details are set forth in order to provide a better understanding of the present application in various embodiments of the present invention. However, the technical solutions claimed in the claims of the present application can be implemented without these technical details and with various changes and modifications based on the following embodiments.
A first embodiment of the present invention relates to a gas circuit overload protection apparatus, as shown in fig. 1 and 2, including:
the cavity 10 in the embodiment is used as a component for installing an air path overload protection mechanism;
on a preset axis of the cavity 10, an air channel 20 is arranged in the cavity 10; the preset axis in this embodiment is a central axis of the cavity 10, and the air passage 20 is disposed on the central axis of the cavity 10 in this embodiment;
the gas circuit overload protection mechanism 30 in the present embodiment; inside the chamber 10; the gas path overload protection mechanism 30 is arranged on the preset section of the gas path channel 20; the preset cross section in this embodiment is a cross section perpendicular to the central axis of the cavity 10, and the air path overload protection mechanism 30 is disposed on the cross section of the air path channel 20 perpendicular to the central axis of the cavity 10.
The air path overload protection mechanism 30 in this embodiment is used to block the transmission direction of the air in the air path channel 20. Therefore, the problem that the detector of the instrument is damaged due to overlarge inflow gas flow and pressure in the prior art is solved; the technical problem that in the prior art, a pressure reducing valve and a mass flow controller are additionally arranged in a gas circuit system to control the flow and pressure of the gas flowing in, and when the mass flow controller usually fails suddenly when the system pressure exceeds the safety pressure, the gas flow and the pressure are increased to damage a detector of an instrument is solved.
In the present embodiment, in order to achieve the above technical effects, as shown in fig. 1 and 2, the air path overload protecting mechanism 30 moves back and forth along the central axis on the air path 20, and blocks one side of the air path 20. When the system pressure exceeds the safety pressure and fails suddenly, thereby causing the airflow and the pressure to increase, the air path overload protection mechanism 30 can block one side of the air path channel 20 on the air path channel 20, thereby protecting valuable instruments on the other side of the air path overload protection mechanism 30.
In the present embodiment, in order to achieve the above technical effects, as shown in fig. 1 and 2, the air inlet 8 and the air outlet 9 are respectively disposed on both sides of the cavity 10 along the central axis. Thus, a gas inlet 8 and a gas outlet 9 are formed for the inlet and outlet of gas.
In this embodiment, in order to achieve the above technical effects, as shown in fig. 1 and 2, the cavity 10 further includes:
a mounting seat 5 is arranged on one side of the cavity 10; a notch 11 is arranged on one side of the mounting seat 5 along the central axis, and one end of the notch 11 is provided with a section of internal thread 12; an air inlet 8 is formed in the other side of the mounting seat 5; the air inlet 8 is communicated with the notch 11;
an end cover 4 is in threaded connection with the mounting base 5, and a section of external thread 13 is arranged on the end cover 4 and is in threaded connection with an internal thread arranged on the mounting base 5 on one side of the end cover 4; an air outlet 9 is arranged on the end cover 4 at the position of the central axis; a convex block 14 is arranged on one side of the external thread 13; the projection 14 is embedded in the notch 11; the air outlet 9 extends through the entire end cap 4 from one side of the projection 14.
The mounting seat 5 and the end cover 4 form a structure of a cavity 10, and the air outlet 9 are mounted on the cavity 10 to form an air inlet structure and an air outlet structure.
In the present embodiment, as shown in fig. 1 and 2, the air outlet 9 and the recess 11 form a cavity; an air circuit overload protection mechanism 30 is arranged in the cavity; the air inlet 8, the air outlet 9 and the recess 11 constitute an air passage channel 20.
The overload protection mechanism 30 is installed in the air path channel 20, so that the air path overload protection mechanism 30 is formed on the air path channel 20, and one side of the air path channel 20 is blocked, thereby protecting a detector or a valuable instrument on the other side of the air path overload protection mechanism 30.
In this embodiment, in order to achieve the above technical effects, as shown in fig. 1 and 2, the gas path overload protection mechanism 30 further includes:
a plug 2 is arranged on one side of the air outlet 9; the plug 2 is used for blocking the air outlet 9 when the air flow and the pressure are overlarge, so that a valuable instrument connected with the air outlet 9 is protected, and the technical effects can be achieved by adopting a soft material as the material of the plug 2 in the embodiment.
A spring 3 is arranged on the outer side of the plug 2; one side of the spring 3 is sleeved on the convex block 14; the other side of the spring 3 is sleeved on the outer side of the plug 2;
one side of the baffle 1 is fixed on the other side of the plug 2; the spring 3 bounces the baffle 1 to ensure that gas passes through under the normal condition and the normal condition of gas pressure.
A projection 15 is fixed to the other side of the barrier 1. The bulge 15 is used for positioning, and when the bulge 15 is pushed to the air inlet 8 by the spring 3 under the condition of no air pressure, air cannot enter from the air outlet 9, and air inlet of other equipment is influenced.
In the present embodiment, in order to achieve the above technical effects, as shown in fig. 1 and 2, one side of the plug 2 is embedded in the baffle 1, and the plug 2 and the baffle 1 are integrally configured. The structure firmness of the plug 2 and the baffle 1 is ensured.
In the present embodiment, in order to achieve the above technical effects, as shown in fig. 1 and 2, the protrusion 15 is embedded inside the air inlet 8. Under the condition of no gas pressure, when the bulge 15 is pushed to the gas inlet 8 by the spring 3, the gas cannot enter from the gas outlet 9, and the gas inlet of other equipment is influenced.
In the present embodiment, in order to achieve the above technical effects, as shown in fig. 1 and 2, a seal ring 6 is provided between the end cap 4 and the mounting seat 5; a sealing groove 16 is arranged on the mounting seat 5 in a surrounding manner; a seal ring 6 is provided in the seal groove 16. The sealing ring 6 is used for sealing between the end cover 4 and the mounting seat 5, and air tightness between the end cover 4 and the mounting seat 5 is guaranteed.
In this embodiment, in order to achieve the above technical effects, as shown in fig. 1 and fig. 2, the gas circuit overload protection device in this embodiment is respectively connected with the gas circuit connectors 7 by threads, and is used for gas inlet and outlet connection.
It will be understood by those of ordinary skill in the art that the foregoing embodiments are specific examples for carrying out the utility model, and that various changes in form and details may be made therein without departing from the spirit and scope of the utility model in practice.
Claims (10)
1. The utility model provides a gas circuit overload protection device which characterized in that includes:
a cavity;
a gas path channel; the gas path channel is arranged in the cavity on a preset axis of the cavity;
an air circuit overload protection mechanism; inside the cavity; the preset section of the gas path channel is provided with the gas path overload protection mechanism;
the gas path overload protection mechanism is used for blocking the transmission direction of the gas in the gas path channel.
2. The gas circuit overload protection device according to claim 1, wherein the gas circuit overload protection mechanism moves back and forth along the preset axis on the gas circuit channel and blocks one side of the gas circuit channel.
3. The gas circuit overload protection device according to claim 2, wherein an air inlet and an air outlet are respectively disposed on two sides of the cavity along the predetermined axis.
4. The gas circuit overload protection device of claim 3, wherein the chamber further comprises:
the mounting seat is arranged on one side of the cavity; a notch is formed in one side of the mounting seat along the preset axis, and one end of the notch is provided with a section of internal thread; an air inlet is formed in the other side of the mounting seat; the air inlet is communicated with the notch;
the end cover is in threaded connection with the mounting seat, and a section of external thread is arranged on the end cover on one side of the end cover and is in threaded connection with the internal thread arranged on the mounting seat; an air outlet is formed in the end cover at the position of the preset axis; a lug is arranged on one side of the external thread; the lug is embedded into the notch; the air outlet penetrates through the whole end cover from one side of the lug.
5. The gas circuit overload protection device according to claim 4, wherein the gas outlet and the notch form a cavity; an air circuit overload protection mechanism is arranged in the cavity; the air inlet, the air outlet and the notch form an air path channel.
6. The gas circuit overload protection device according to claim 1, wherein the gas circuit overload protection mechanism further comprises:
the plug is arranged on one side of the air outlet; the plug is made of soft material;
the spring is arranged on the outer side of the plug; one side of the spring is sleeved on the lug; the other side of the spring is sleeved on the outer side of the plug;
the other side of the plug is fixed with one side of the baffle;
and the bulge is fixed on the other side of the baffle.
7. The gas circuit overload protection device of claim 6, wherein one side of the plug is embedded into the baffle, and the plug and the baffle are integrated.
8. The gas circuit overload protection device according to claim 6, wherein the protrusion is embedded in the gas inlet.
9. The gas circuit overload protection device according to claim 4, wherein a sealing ring is arranged between the end cover and the mounting seat; a sealing groove is arranged on the mounting seat in a surrounding manner; and the sealing ring is arranged in the sealing groove.
10. The gas circuit overload protection device according to any one of claims 1 to 9, wherein the gas circuit overload protection device is respectively connected with a gas connector in a threaded manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123170467.5U CN216666593U (en) | 2021-12-15 | 2021-12-15 | Gas circuit overload protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123170467.5U CN216666593U (en) | 2021-12-15 | 2021-12-15 | Gas circuit overload protection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216666593U true CN216666593U (en) | 2022-06-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123170467.5U Active CN216666593U (en) | 2021-12-15 | 2021-12-15 | Gas circuit overload protection device |
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|---|---|
| CN (1) | CN216666593U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115032301A (en) * | 2022-06-13 | 2022-09-09 | 北京高麦克仪器科技有限公司 | Electron-level hydrogen chloride analysis device |
-
2021
- 2021-12-15 CN CN202123170467.5U patent/CN216666593U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115032301A (en) * | 2022-06-13 | 2022-09-09 | 北京高麦克仪器科技有限公司 | Electron-level hydrogen chloride analysis device |
| CN115032301B (en) * | 2022-06-13 | 2023-10-13 | 北京高麦克仪器科技有限公司 | Electronic grade hydrogen chloride analysis device |
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