CN212646613U - Oxygen-containing detection device with self-checking function - Google Patents
Oxygen-containing detection device with self-checking function Download PDFInfo
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- CN212646613U CN212646613U CN202020500418.XU CN202020500418U CN212646613U CN 212646613 U CN212646613 U CN 212646613U CN 202020500418 U CN202020500418 U CN 202020500418U CN 212646613 U CN212646613 U CN 212646613U
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Abstract
The utility model relates to a take self-checking function's oxygen detection device, include: the gas detection device comprises a sensing transmitter, a gas detection probe, a gas detection cavity, a first gas pipeline, a second gas pipeline, a third gas pipeline, a first gas control piece arranged on the first gas pipeline, a second gas control piece arranged on the second gas pipeline and a third gas control piece arranged on the third gas pipeline, wherein the first gas pipeline, the second gas pipeline and the third gas pipeline are connected with the gas detection cavity; the sensing transmitter, the first gas control part, the second gas control part and the third gas control part are all connected with remote control equipment; the gas detection probe is connected with the sensing transmitter and extends into the gas detection cavity to detect the gas in the gas detection cavity; the sensing transmitter senses the gas detected by the gas detection probe, generates a sensing signal and transmits the sensing signal to the remote control device. The oxygen-containing detection device with the self-checking function can realize self-checking, and the sensitivity and equipment safety of the detection device are ensured.
Description
Technical Field
The utility model relates to a technical field of oxygen analyzer, more specifically say, relate to a take oxygen detection device of self-checking function.
Background
Along with the increase of the development of domestic petroleum and natural gas, the demand of oil and gas production and treatment equipment is increased, and more equipment pipelines are put into use. Due to the flammable and explosive nature of natural gas, when the equipment pipeline is initially put into service and overhauled, the equipment pipeline must be inerted first to prevent the natural gas and air from being focused to form explosive mixed gas. Therefore, in the oil and gas production industry, the demand for inert gases is high.
In the domestic oil and gas production process, nitrogen post equipment pipelines are generally used for inerting, and as the demand of inert gas is large, nitrogen making machines are generally arranged in oil and gas production treatment plants. Monitoring of oxygen content in nitrogen produced by a nitrogen making machine is very important, an oxygen content analyzer is generally arranged at the outlet flow of the nitrogen making machine on site to realize real-time detection of the oxygen content, the detection value generally participates in logic control, and when the oxygen content does not reach the standard, a product is forcibly closed to go to a nitrogen storage tank valve, so that the oxygen content in the nitrogen of a user is ensured to reach the standard.
Because the oxygen content analyzer is in the low-oxygen content gas for a long time, if the oxygen content analyzer fails or is out of alignment, the low-oxygen content detection value is continuously output, the detection value is difficult to find on site, and if the actual oxygen content does not reach the standard, the control logic can not be triggered to close the nitrogen removal storage tank valve, so that the oxygen content in the nitrogen of a user is possibly over standard, and if the nitrogen is used for inerting an equipment pipeline, secondary disasters can not be completely generated due to inerting.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model lies in, to the above-mentioned defect of prior art, provide an oxygen-containing detection device of taking self-checking function.
The utility model provides a technical scheme that its technical problem adopted is: an oxygen-containing detection device with a self-detection function is constructed, comprising: the gas detection device comprises a sensing transmitter, a gas detection probe, a gas detection cavity, a first gas pipeline connected with the gas detection cavity, a second gas pipeline connected with the gas detection cavity, a third gas pipeline connected with the gas detection cavity, a first gas control part arranged on the first gas pipeline, a second gas control part arranged on the second gas pipeline, and a third gas control part arranged on the third gas pipeline;
the sensing transmitter, the first gas control part, the second gas control part and the third gas control part are all connected with remote control equipment;
the gas detection probe is connected with the sensing transmitter and extends into the gas detection cavity to detect the gas in the gas detection cavity;
the sensing transmitter senses the gas detected by the gas detection probe and generates a sensing signal, and the sensing transmitter also transmits the sensing signal to the remote control device.
In one embodiment, further comprising: the adapter tube and the first connecting piece;
the first end of the adapter tube is connected with the gas outlet of the first gas pipeline and connected with the gas outlet of the second gas pipeline, the second end of the adapter tube is connected with the first end of the first connecting piece, and the second end of the first connecting piece is connected with the gas inlet of the gas detection cavity.
In one embodiment, the first connector is a stainless steel connector.
In one embodiment, further comprising: a second connecting member;
one end of the second connecting piece is connected with the sensing transmitter, and the other end of the second connecting piece is connected with the gas detection cavity.
In one embodiment, the second connector is a threaded connector.
In one embodiment, further comprising:
a first pressure regulator disposed on the first gas conduit for regulating the pressure of gas flowing into the first gas conduit;
a second pressure regulator disposed on the second gas conduit for regulating the pressure of the gas flowing into the second gas conduit;
a third pressure regulator disposed on the third gas conduit for regulating the pressure of the gas flowing into the third gas conduit.
In one embodiment, the first, second and third pressure regulators are all pressure regulating valves.
In one embodiment, further comprising: and the fourth regulator is arranged in the direction of the gas outlet of the gas detection cavity.
In one embodiment, the fourth regulator is a manual ball valve.
In one embodiment, the first gas control, the second gas control, and the third gas control are each remote on-off valves.
Implement the utility model discloses a take oxygen detection device of self-checking function has following beneficial effect: the method comprises the following steps: the gas detection device comprises a sensing transmitter, a gas detection probe, a gas detection cavity, a first gas pipeline connected with the gas detection cavity, a second gas pipeline connected with the gas detection cavity, a third gas pipeline connected with the gas detection cavity, a first gas control piece arranged on the first gas pipeline, a second gas control piece arranged on the second gas pipeline and a third gas control piece arranged on the third gas pipeline; the sensing transmitter, the first gas control part, the second gas control part and the third gas control part are all connected with remote control equipment; the gas detection probe is connected with the sensing transmitter and extends into the gas detection cavity to detect the gas in the gas detection cavity; the sensing transducer senses the gas detected by the gas detection probe and generates a sensing signal, and the sensing transducer also transmits the sensing signal to the remote control device. The oxygen-containing detection device with the self-detection function can realize timing self-detection, timely discovery and treatment when the oxygen-containing analyzer fails or is misaligned are ensured, and the sensitivity and the intrinsic safety of equipment are ensured.
Drawings
The invention will be further explained with reference to the drawings and examples, wherein:
fig. 1 is a schematic structural diagram of an oxygen-containing detection device with a self-detection function according to an embodiment of the present invention.
Detailed Description
For a clearer understanding of the technical features, objects, and effects of the present invention, reference will now be made to the accompanying drawings.
Referring to fig. 1, for the utility model provides an in the area of the oxygen detection device of self-checking function, this take the oxygen detection device of self-checking function can be applied to in the oil gas development to the detection area of gaseous oxygen content, through adopting the embodiment of the utility model provides an in the area of the oxygen detection device of self-checking function can realize regularly self-checking function, can guarantee the sensitivity of oxygen detection device again, has ensured the validity that oxygen detection device detected numerical value, has improved the qualified guarantee of user nitrogen gas, has promoted oxygen detection device's essential safety.
Specifically, as shown in fig. 1, the oxygen-containing detection device with a self-detection function may include: sensing transmitter 10, gas detection probe 11, gas detection chamber 20, first gas conduit 30 connected to gas detection chamber 20, second gas conduit 40 connected to gas detection chamber 20, third gas conduit 50 connected to gas detection chamber 20, first gas control member 31 disposed on first gas conduit 30, second gas control member 41 disposed on second gas conduit 40, and third gas control member 51 disposed on third gas conduit 50.
Wherein sensing transmitter 10, first gas control 31, second gas control 41 and third gas control 51 are all connected to a remote control device.
The embodiment of the utility model provides an in, this gaseous test probe 11 is connected and stretches into in gaseous detection chamber 20 with the sensing transmitter 10, with the gaseous gas in the gaseous detection chamber 20 of detection. It can be understood that the utility model discloses a stretch into gaseous detection chamber 20 with gaseous detection probe 11 in, can accurately detect the gas content who gets into in the gaseous detection chamber 20.
The embodiment of the utility model provides an in, the gaseous detection probe 11 of sensing transmitter 10 sensing detects gas and produce sensing signal, and sensing transmitter 10 still sends sensing signal for distal end controlgear. Optionally, the utility model discloses a sensing transmitter 10 can adopt conventional oxygen content detector changer, and when gaseous entering gas detection chamber 20 was interior, gaseous detecting probe 11 can detect, and at this moment, sensing transmitter 10 synchronous sensing produced corresponding sensing signal to gaseous detecting probe 11's detection, and this sensing signal sends distal end controlgear to, and distal end controlgear can detect out the specific oxygen content in the gaseous detecting chamber 20 according to this sensing signal.
In the embodiment of the present invention, the first gas pipeline 30, the second gas pipeline 40 and the third gas pipeline 50 can all be implemented by stainless steel pipelines. Optionally, the stainless steel pipes used in the first gas pipeline 30, the second gas pipeline 40 and the third gas pipeline 50 of the present invention may be conventional stainless steel pipes. The stainless steel pipe is adopted as a gas pipeline, so that the connection and later-period maintenance can be facilitated.
Further, the first gas conduit 30 is used to deliver a nitrogen calibration gas (herein nitrogen calibration gas refers to nitrogen used as calibration gas) to the gas detection chamber 20. The second gas conduit 40 is used to convey an air calibration gas (air calibration gas is used herein as calibration air) to the gas detection chamber 20. The third gas pipe is used for transmitting the process gas to the gas detection cavity 20.
In the embodiment of the present invention, the first gas control member 31, the second gas control member 41 and the third gas control member 51 are remote switch valves. Specifically, the first gas control member 31, the second gas control member 41 and the third gas control member 51 are electrically connected to a remote control device, and are on/off controlled by the remote control device.
Specifically, when the remote device outputs an open signal to the first gas control member 31, the first gas control member 31 is opened, and when the remote device outputs a close signal to the first gas control member 31, the first gas control member 31 is closed. Similarly, the operation principle of the second gas control member 41 and the third gas control member 51 is the same as that of the first gas control member 31, and the description thereof is omitted. Further, the first gas control member 31, the second gas control member 41 and the third gas control member 51 of the present invention are remote switching valves that only open and close two variables. Of course, it is understood that in other embodiments, the first gas control member 31, the second gas control member 41 and the third gas control member 51 may be set as sequential valves, and the automatic opening and closing of the valves may be realized by setting the time.
Further, the utility model discloses a take oxygen detection device of self-checking function still includes: an adapter tube 60 and a first connector 70. Wherein, the first end of the adapter tube 60 is connected with the gas outlet of the first gas pipeline 30 and the gas outlet of the second gas pipeline 40, the second end of the adapter tube 60 is connected with the first end of the first connecting piece 70, and the second end of the second connecting piece 80 is connected with the gas inlet of the gas detection cavity 20.
The optional adapter tube 60 may be integrated with the first gas line 30 and the second gas line 40, or may be separate.
Optionally, the first connector 70 is a stainless steel connector, which can be screwed to connect the adapter tube 60 and the gas detection chamber 20 in a sealing manner. It can be understood that the gas detection chamber 20 and the adapter tube 60 are connected in a threaded manner by using a stainless steel connector, which facilitates the replacement of the first connector 70 or the maintenance of the gas detection chamber 20 at a later stage.
Further, the utility model discloses take oxygen detection device of self-checking function still includes: a second connecting member 80.
The second connector 80 is connected to the sensing transducer 10 at one end and to the gas detection chamber 20 at the other end. Optionally, the second connector 80 is a threaded connector, and further, the second connector 80 may be a stainless steel connector, which can be used to connect the sensing transmitter 10 and the gas detection chamber 20 in a sealing manner by means of a threaded connection.
As shown in fig. 1, the gas detection cavity 20 is connected to the adapter tube 60 by a stainless steel connector, and is connected to the sensor transmitter 10 by a threaded connection of the second connector 80 to form a sealed cavity, so as to ensure the accuracy of detecting the oxygen content in the gas.
Further, the utility model discloses take oxygen detection device of self-checking function still includes: a first pressure regulator 32 disposed on the first gas conduit 30 for regulating the pressure of the gas flowing into the first gas conduit 30.
As shown in fig. 1, the first pressure regulator 32 is disposed at the front end of the first gas control member 31, i.e., after the gas enters the first gas conduit 30, passes through the first pressure regulator 32, and then passes through the first gas control member 31.
Optionally, the first pressure regulator 32 of the embodiment of the present invention is a pressure regulating valve, and further, may be a pressure reducing valve, and after the nitrogen calibration gas enters the first gas pipeline 30, the nitrogen calibration gas passes through the first pressure regulator 32, and is output after being reduced to a set pressure value by the first pressure regulator 32. Alternatively, the reduced pressure value of the first pressure regulator 32 may be predetermined and need not be adjusted in real time.
Further, the utility model discloses take oxygen detection device of self-checking function still includes: a second pressure regulator 42 disposed on the second gas conduit 40 for regulating the pressure of the gas flowing into the second gas conduit 40.
As shown in fig. 1, the second pressure regulator 42 is disposed at the front end of the second gas control member 41, i.e., after the gas enters the second gas pipe 40, it passes through the second pressure regulator 42 and then passes through the second gas control member 41.
Optionally, the utility model discloses second pressure regulator 42 is pressure regulating valve, and further, can be the relief pressure valve, after air calibration gas got into second gas pipeline 40, through second pressure regulator 42 earlier, exported after the pressure value that is decompressed to the settlement by second pressure regulator 42. Alternatively, the reduced pressure value of the second pressure regulator 42 may be preset.
Further, the utility model discloses take oxygen detection device of self-checking function still includes: a third pressure regulator 52 provided on the third gas conduit 50 for regulating the pressure of the gas flowing into the third gas conduit 50.
As shown in fig. 1, the third pressure regulator 52 is disposed at the front end of the first gas control member 31, i.e. after the gas enters the third gas conduit 50, passes through the third pressure regulator 52, and then passes through the third gas control member 51.
Optionally, the third pressure regulator 52 of the embodiment of the present invention is a pressure regulating valve, and further, may be a pressure reducing valve, and after the process gas enters the third gas pipeline 50, the process gas passes through the third pressure regulator 52, and is output after being reduced to a set pressure value by the third pressure regulator 52. Alternatively, the reduced pressure value of the third pressure regulator 52 may be predetermined and need not be adjusted in real time.
Further, the utility model discloses take oxygen detection device of self-checking function still includes: and a fourth regulator 91 disposed in the gas outlet direction of the gas detection chamber 20.
As shown in fig. 1, a fourth regulator 91 is provided on the flare line 90. Alternatively, the fourth regulator 91 may be a manual ball valve. Further, the fourth regulator 91 may be a conventional low pressure ball valve that remains normally open during operation. The manual ball valve can be closed when the upstream needs to be repaired, so as to prevent the back-flow of harmful gas in the downstream.
The following describes the detection of the oxygen content in the gas by the oxygen content detecting device with the self-checking function of the present invention.
And (3) during normal detection:
as shown in fig. 1, the fourth regulator 91 is kept normally open, the third control member is opened, and both the first control member and the second control member are closed. The opening and closing of the first control part, the second control part and the third control part are controlled by remote control equipment.
During self-checking:
as shown in fig. 1, the fourth regulator 91 is kept normally open, the third control element is closed, the second control element is opened, the first control element is closed, at this time, the air calibration gas passes through the second pressure regulator 42 and then is transmitted to the gas detection chamber 20 through the second control element, the gas detection probe 11 extending into the gas detection chamber 20 detects the gas entering into the gas detection chamber 20, and after being sensed by the sensing transmitter 10, a corresponding sensing signal is generated and transmitted to the remote control device, the remote control monitors whether the oxygen-containing detection value in the gas detection chamber 20 reaches the first set value, if so, a closing signal is output to the second gas control element 41, the second gas control element 41 is closed, an opening signal is output to the first gas control element 31, the first gas control element 31 is opened, at this time, the nitrogen calibration gas is firstly decompressed by the first pressure regulator 32 from the first gas pipeline 30 and then is output to the first gas control element 31, and then the gas is transmitted into the gas detection cavity 20, the gas detection probe 11 extending into the gas detection cavity 20 detects the gas entering the gas detection cavity 20, and after being sensed by the sensing transmitter 10, a corresponding sensing signal is generated and transmitted to the remote control device, the remote control monitors whether the oxygen-containing detection value in the gas detection cavity 20 reaches a second set value, if the oxygen-containing detection value reaches the second set value, the self-detection is completed, the remote control device outputs an opening signal to the third gas control element 51, the third gas control element 51 is opened, and simultaneously outputs a closing signal to the first gas control element 31, and the first gas control element 31 is closed.
Optionally, both the first set value and the second set value may be preset. In one embodiment, the first set point is 19% and the second set point is 1%. Wherein, the oxygen content detection value in the gas detection cavity 20 reaching the first set value is: an oxygen-containing detection value within the gas detection chamber 20 within 60 seconds is greater than 19%; the oxygen content detection value in the gas detection chamber 20 reaches the second set value: the oxygen content in the gas detection chamber 20 is detected to be less than 1% in 60 seconds.
Further, in the self-test process, if the setting value is not reached within a specified time (for example, the aforementioned 60 seconds), the remote control device may trigger a logic action (for example, control the first control element, the second control element, and the third control element to be turned on or off), and in addition, the remote control device may also trigger an alarm, for example, trigger a warning light or a buzzer to alarm. Optionally, the remote control device according to the embodiment of the present invention includes, but is not limited to, a remote server, a remote cloud server, and the like.
Through implementing the embodiment of the utility model discloses take oxygen detection device of self-checking function can realize oxygen detection device's timing self-checking function, has improved oxygen detection device's reliability, and applicable in multiple occasion, and oxygen detection device changes simply swiftly, has ensured the validity that oxygen detection device detected numerical value, improves the qualified guarantee of user's nitrogen gas, has promoted oxygen detection device's essential safety.
The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose of the embodiments is to enable people skilled in the art to understand the contents of the present invention and implement the present invention accordingly, which can not limit the protection scope of the present invention. All equivalent changes and modifications made within the scope of the claims of the present invention shall fall within the scope of the claims of the present invention.
It will be understood that modifications and variations can be made by persons skilled in the art in light of the above teachings and all such modifications and variations are considered to be within the scope of the invention as defined by the following claims.
Claims (10)
1. The utility model provides a take oxygen-containing detection device of self-checking function which characterized in that includes: the gas detection device comprises a sensing transmitter (10), a gas detection probe (11), a gas detection cavity (20), a first gas pipeline (30) connected with the gas detection cavity (20), a second gas pipeline (40) connected with the gas detection cavity (20), a third gas pipeline (50) connected with the gas detection cavity (20), a first gas control part (31) arranged on the first gas pipeline (30), a second gas control part (41) arranged on the second gas pipeline (40), and a third gas control part (51) arranged on the third gas pipeline (50);
the sensing transmitter (10), the first gas control element (31), the second gas control element (41) and the third gas control element (51) are all connected with a remote control device;
the gas detection probe (11) is connected with the sensing transmitter (10) and extends into the gas detection cavity (20) to detect the gas in the gas detection cavity (20);
the sensing transmitter (10) senses the gas detected by the gas detection probe (11) and generates a sensing signal, and the sensing transmitter (10) also transmits the sensing signal to the remote control device.
2. The oxygen-containing detection device with a self-test function according to claim 1, further comprising: an adapter tube (60) and a first connector (70);
the first end of adapter tube (60) with the gas outlet of first gas pipeline (30) is connected with the gas outlet of second gas pipeline (40) is connected, the second end of adapter tube (60) with the first end of first connecting piece (70) is connected, the second end of first connecting piece (70) with the air inlet of gaseous detection chamber (20) is connected.
3. The oxygen-containing detection device with self-checking function according to claim 2, wherein the first connector (70) is a stainless steel connector.
4. The oxygen-containing detection device with a self-test function according to claim 1, further comprising: a second connecting member (80);
one end of the second connecting piece (80) is connected with the sensing transmitter (10), and the other end of the second connecting piece is connected with the gas detection cavity (20).
5. The oxygen-containing detection device with self-test function according to claim 4, wherein the second connector (80) is a threaded connector.
6. The oxygen-containing detection device with a self-test function according to claim 1, further comprising:
a first pressure regulator (32) disposed on the first gas conduit (30) for regulating the pressure of gas flowing into the first gas conduit (30);
a second pressure regulator (42) disposed on the second gas conduit (40) for regulating the pressure of the gas flowing into the second gas conduit (40);
a third pressure regulator (52) disposed on the third gas conduit (50) for regulating the pressure of the gas flowing into the third gas conduit (50).
7. The self-test function oxygen detection device according to claim 6, wherein the first pressure regulator (32), the second pressure regulator (42), and the third pressure regulator (52) are all pressure regulating valves.
8. The oxygen-containing detection device with a self-test function according to claim 1, further comprising: a fourth regulator (91) disposed in a gas outlet direction of the gas detection chamber (20).
9. The oxygen detection device with self-test function according to claim 8, wherein said fourth regulator (91) is a manual ball valve.
10. The oxygen-containing detection device with self-test function according to any one of claims 1 to 9, wherein the first gas control member (31), the second gas control member (41) and the third gas control member (51) are remote-switching valves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020500418.XU CN212646613U (en) | 2020-04-08 | 2020-04-08 | Oxygen-containing detection device with self-checking function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020500418.XU CN212646613U (en) | 2020-04-08 | 2020-04-08 | Oxygen-containing detection device with self-checking function |
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| Publication Number | Publication Date |
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| CN212646613U true CN212646613U (en) | 2021-03-02 |
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| CN202020500418.XU Active CN212646613U (en) | 2020-04-08 | 2020-04-08 | Oxygen-containing detection device with self-checking function |
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