CN210603403U - Plug-in gas parameter detection probe rod and detector - Google Patents
Plug-in gas parameter detection probe rod and detector Download PDFInfo
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- CN210603403U CN210603403U CN201921659033.1U CN201921659033U CN210603403U CN 210603403 U CN210603403 U CN 210603403U CN 201921659033 U CN201921659033 U CN 201921659033U CN 210603403 U CN210603403 U CN 210603403U
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Abstract
The utility model relates to a bayonet gas parameter detection probe rod and detector, its key point lies in having adopted thermal type flowmeter, in two temperature sensor that thermal type flowmeter contains, one is used for the output temperature signal, through adopting thermal type flowmeter, one of them temperature sensor of thermal flowmeter is used for the gaseous temperature and the output temperature signal in the direct detection gas pipeline for flow detection device has the effect of measuring gas temperature in the gas pipeline concurrently, just so needn't detect the gaseous temperature in the gas pipeline at the temperature that sets up independent temperature sensor, the structure of bayonet gas parameter detector has been simplified.
Description
Technical Field
The utility model relates to a bayonet gas parameter detection probe rod and detector.
Background
Among the prior art, to the detection of gas pipe internal gas parameter, temperature and flow often regard as important parameter, like the utility model patent of the publication number of authorizing CN203572515U, disclose a bayonet gas parameter measurement appearance, its insert the end be provided with temperature sensor and with ultrasonic flow detection device, correspond the temperature and the flow that detect gas pipe internal gas respectively. In the instrument in the prior art, the temperature and the flow are detected by adopting independent elements respectively, so that the whole gas parameter detector has a complex structure.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a bayonet gas parameter detection probe rod to simplify bayonet gas parameter detection appearance's structure. Simultaneously still provide an bayonet gas parameter detector who uses this probe rod.
For the purpose of realizing, the utility model discloses a bayonet gas parameter detector technical scheme as follows:
an inserted gas parameter detector, comprising:
the gas pipeline comprises a hollow probe rod, a gas inlet channel, a gas outlet channel, a gas inlet channel and a gas outlet channel, wherein one end of the hollow probe rod is an insertion end for being inserted into the gas pipeline;
the detection shell is connected to one end, far away from the insertion end, of the hollow probe rod, a detection cavity is formed inside the detection shell, and the air inlet channel and the air outlet channel are communicated with the detection cavity;
the gas detection sensor is communicated with the inner cavity of the detection cavity and at least comprises a methane sensor;
the thermal flowmeter is arranged at the insertion end of the hollow probe rod, and one of the two temperature sensors contained in the thermal flowmeter is used for outputting a temperature signal;
the plug-in gas parameter detector further comprises a signal processing module and a display gauge head connected with the signal processing module, the display gauge head is installed on the detection shell, the thermal flowmeter and the gas detection sensor are electrically connected with the signal processing module, and the display gauge head is used for displaying the temperature and the flow in the pipeline and the concentration of the detected gas.
The utility model has the advantages that: by adopting the thermal flowmeter, one temperature sensor of the thermal flowmeter is used for directly detecting the temperature of the gas in the gas pipeline and outputting a temperature signal, so that the flow detection device has the function of measuring the temperature of the gas in the gas pipeline, an independent temperature sensor specially used for detecting the temperature of the gas in the gas pipeline is not required to be arranged, and the structure of the plug-in gas parameter detector is simplified; the display header makes the detection parameters easy to observe.
Furthermore, two temperature sensors of the thermal flowmeter are both platinum resistance temperature sensors. The platinum resistor has the characteristic of high stability, and the reliability is high when the platinum resistor is used for long-term continuous detection.
Further, install detection cavity and pressure sensor in the detection casing, the inner chamber that detects the casing during use communicates with each other with the gas pipeline, and the inner chamber that detects the cavity constitutes detection cavity, pressure sensor and signal processing module are connected, and pressure signal can show on the display gauge outfit. Through set up detection cavity and pressure sensor in detecting the casing, detect the cavity and form independent size in detecting the casing and be less than the detection chamber that detects the inner chamber of casing, when detecting, pressure sensor can detect and obtain the pressure that detects the casing inner chamber, and detect the cavity because the size is little can be flowed through more rapidly and be full of, is favorable to improving the methane sensor response speed on detecting the chamber.
Furthermore, the air inlet channel and the air outlet channel are formed by two independent air pipes which are arranged in the hollow probe rod in a penetrating mode, a section of the hollow probe rod, which is inserted into the gas pipeline, is provided with a ventilation port which is communicated with the inside and the outside of the hollow probe rod, and the inner cavity of the detection shell is communicated with the inner cavity of the hollow probe rod so as to be communicated with the gas pipeline. Through setting up ventilative mouthful for the inner chamber of cavity probe rod directly is as the air flue of intercommunication gas pipeline and detection casing inner chamber, simple structure.
Further, the gas detection sensor also comprises an oxygen sensor and a carbon monoxide sensor. Through setting up oxygen sensor and carbon monoxide sensor, can realize that the detector detects the parameter of oxygen and carbon monoxide in to the gas pipeline, realized the detection of more parameters.
In order to achieve the above purpose, the technical scheme of the plug-in gas parameter detection probe rod of the utility model is as follows
An inserted gas parameter detection probe rod, comprising:
the gas pipeline comprises a hollow probe rod, a gas inlet channel, a gas outlet channel, a gas inlet channel and a gas outlet channel, wherein one end of the hollow probe rod is an insertion end for being inserted into the gas pipeline;
the detection shell is connected to one end, far away from the insertion end, of the hollow probe rod, a detection cavity is formed inside the detection shell, and the air inlet channel and the air outlet channel are communicated with the detection cavity; the detection shell is provided with a connecting end which is mechanically and electrically connected with the display gauge head;
the gas detection sensor is communicated with the inner cavity of the detection cavity and at least comprises a methane sensor;
the thermal flowmeter is arranged at the insertion end of the hollow probe rod, and one of the two temperature sensors contained in the thermal flowmeter is used for outputting a temperature signal;
the utility model has the advantages that: through adopting hot type flowmeter, one of them temperature sensor of heat flowmeter is used for directly detecting the temperature of gas in the gas pipeline and output temperature signal for flow detection device has the effect of measuring gas temperature in the gas pipeline concurrently, just so needn't be setting up the independent temperature sensor who is exclusively used in the temperature that detects gas in the gas pipeline, has simplified bayonet gas parameter detector's structure.
Furthermore, two temperature sensors of the thermal flowmeter are both platinum resistance temperature sensors. The platinum resistor has the characteristic of high stability, and the reliability is high when the platinum resistor is used for long-term continuous detection.
Furthermore, a detection cavity and a pressure sensor are installed in the detection shell, the inner cavity of the detection shell is communicated with the gas pipeline, and the inner cavity of the detection cavity forms the detection cavity. Through set up detection cavity and pressure sensor in detecting the casing, detect the cavity and form independent size in detecting the casing and be less than the detection chamber that detects the inner chamber of casing, when detecting, pressure sensor can detect and obtain the pressure that detects the casing inner chamber, and detect the cavity because the size is little can be flowed through more rapidly and be full of, is favorable to improving the methane sensor response speed on detecting the chamber.
Furthermore, the air inlet channel and the air outlet channel are formed by two independent air pipes which are arranged in the hollow probe rod in a penetrating mode, a section of the hollow probe rod, which is inserted into the gas pipeline, is provided with a ventilation port which is communicated with the inside and the outside of the hollow probe rod, and the inner cavity of the detection shell is communicated with the inner cavity of the hollow probe rod so as to be communicated with the gas pipeline. Through setting up ventilative mouthful for the inner chamber of cavity probe rod directly is as the air flue of intercommunication gas pipeline and detection casing inner chamber, simple structure.
Further, the gas detection sensor also comprises an oxygen sensor and a carbon monoxide sensor. Through setting up oxygen sensor and carbon monoxide sensor, can realize that the detector detects the parameter of oxygen and carbon monoxide in to the gas pipeline, realized the detection of more parameters.
Drawings
FIG. 1 is a schematic structural view of the plug-in gas parameter detector of the present invention;
in the figure: 1-display gauge head, 2-detection shell, 3-hollow probe rod, 31-air inlet, 32-air outlet, 33-ventilation port, 4-air pipe, 41-air inlet pipe, 42-air outlet pipe, 5-thermal flowmeter, 6-temperature sensor, 7-temperature sensor, 8-detection chamber, 9-methane sensor, 10-carbon monoxide sensor, 11-oxygen sensor, 12-pressure sensor, 13-gas pipeline, and 14-airflow direction.
Detailed Description
The following describes embodiments of the present invention with reference to the accompanying drawings.
The utility model discloses a concrete embodiment 1 of bayonet gas parameter detector, including detecting casing 2, cavity probe rod 34, and flow detection device, intake pipe 41 and outlet duct 42 wear to adorn and constitute inlet channel and outlet channel in cavity probe rod 3, be equipped with the air inlet 31 with intake pipe 41 intercommunication on windward side one side on the body of rod that is in gas pipeline 13 of cavity probe rod 3, be equipped with the gas outlet 32 with outlet duct 42 intercommunication on leeward side one side, the end of inserting of one end for being used for inserting in the gas pipeline of cavity probe rod 3 inserts, the other end is connected with and detects casing 2, it detects the chamber to detect 2 inside being formed with of casing, the detector still includes its gaseous sensor that detects of multiple, gaseous sensor communicates with each other with the inner chamber that detects the chamber. The key point of the utility model is that, what flow detection device adopted is thermal flowmeter 5, utilizes thermal flowmeter 5 itself to have a sensor's that is used for detecting gas temperature characteristics, can directly obtain the temperature parameter of gas in the gas pipeline through this temperature sensor of thermal flowmeter 5, and output temperature signal need not to set up the temperature sensor who is used for gas temperature specially again, has simplified the structure of detector.
Referring to fig. 1 specifically, a thermal flowmeter 5 is installed at an insertion end of a hollow probe rod 3, the thermal flowmeter 5 is provided with a temperature sensor 6 and a temperature sensor 7, the principle of detecting the flow of the thermal flowmeter 5 is the prior art, one of the two temperature sensors is heated to a temperature higher than the temperature of a medium when detecting the flow, the other one is used for detecting the temperature of the medium, and the flow can be obtained according to the proportional relation between the temperature difference and the flow velocity of the medium. In this embodiment, the temperature sensor 7 of the thermal flowmeter 5 is heated to a temperature higher than the temperature of the gas in the gas pipe 13, the temperature sensor 6 is used to detect the temperature of the gas in the gas pipe 13, and while the flow parameter of the gas in the gas pipe 13 can be obtained, the temperature detected by the temperature sensor 6 is directly used as the temperature parameter of the gas in the gas pipe 13, that is, the flow parameter and the temperature parameter are obtained by only one flow detecting device, namely, the thermal flowmeter 5. Considering that the gas parameters in the gas pipeline 13 need to be monitored continuously in real time for a long time, in the embodiment, the temperature sensor 6 and the temperature sensor 7 both adopt platinum resistor temperature sensors, and the platinum resistors have the characteristic of high stability, are continuously used for a long time, and have high stability and strong reliability. In other embodiments, a copper resistance temperature sensor can be used, which is low in cost.
In this embodiment, gaseous detection sensor includes methane sensor 9, carbon monoxide sensor 10, oxygen sensor 11, be equipped with in the detection casing 2 and detect cavity 8 and pressure sensor 12, detect cavity 8 and concatenate between intake pipe 41 and outlet duct 42 with intake pipe 41 and outlet duct 42 intercommunication, at this moment, detect cavity 8 and form and detect the chamber, methane sensor 9, carbon monoxide sensor 10, oxygen sensor 11 and the inner chamber intercommunication that detects cavity 8 detect the gaseous detection of gas in the 8 inner chambers of detection cavity. One end of the hollow probe rod 3, which is used for being inserted into the gas pipeline 13, is provided with a ventilation port 33 communicated with the inside and the outside of the hollow probe rod 3, and gas in the gas pipeline 13 can be communicated with the inner cavity of the detection shell 2 through the ventilation port 33 via the inner cavity of the hollow probe rod 3. The size of the detection cavity is reduced, the gas flowing in the gas pipeline is filled with the gas quickly, and the response speed of the gas detection sensor is improved.
In order to make things convenient for the parameter that direct observation detected in this embodiment, the detector still includes signal processing module display gauge outfit 1, and display gauge outfit 1 is installed on detecting casing 2, and is concrete, is provided with on the detecting casing and shows gauge outfit mechanical connection and the link of electricity connection, and display gauge outfit 1 realizes connecting through the link. The display gauge head 1, the methane sensor 9, the carbon monoxide sensor 10, the oxygen sensor 11, the pressure sensor 12 and the thermal type flowmeter 5 are all electrically connected with the signal processing module, and the display gauge head 1 can display the detection information of the gas detection sensor, the flow information of the thermal type flowmeter and the gas temperature information detected by the temperature sensor 6 of the thermal type flowmeter. In this embodiment, the signal processing module is disposed in the display gauge head 1. In other embodiments, the signal processing module may also be disposed in the detection housing.
The hollow probe rod, the detection shell, the gas detection sensor and the thermal flowmeter of the plug-in gas parameter detector in the embodiment jointly form the plug-in gas parameter detection probe rod.
The utility model discloses embodiment 2 of bayonet gas parameter detector, lie in with embodiment 1's difference, separate in order to form inlet channel, air outlet channel through the baffle to the inner chamber of cavity probe rod 3 to and the inner chamber of intercommunication detection casing and gas pipeline's gas passage. The inner cavity of the hollow probe rod 3 can be more fully utilized, the sizes of the air inlet channel, the air outlet channel and the air channel for communicating the inner cavity of the detection shell with the gas pipeline are improved, and the gas circulation is facilitated. In other embodiments, the inner cavity of the air probe rod 3 may be separated by only the partition plate to form an air inlet channel and an air outlet channel, and the inner cavity of the detection shell is communicated with the gas pipeline through an additional gas pipeline, so that the gas flow of the air inlet channel and the air outlet channel is smoother.
The utility model discloses embodiment 3 of bayonet gas parameter detector, lie in with embodiment 1's difference, no longer set up the detection cavity, directly regard as the detection chamber with the inner chamber that detects the casing, at this moment, also no longer set up ventilative mouthful, the one end of intake pipe and outlet duct is direct and the inner chamber intercommunication that detects the casing. The gas detection sensor and the pressure sensor are directly arranged in the inner cavity of the detection shell to detect the gas in the inner cavity. The arrangement can meet the use requirement of low response speed requirement, and compared with the embodiment 1, the gas pipeline structure avoids the arrangement of a complex gas channel, and has simple structure and low cost.
The utility model discloses in other embodiments of bayonet gas parameter detector, can only set up the methane sensor, also can add one of oxygen sensor and carbon monoxide sensor on the basis of methane sensor.
The utility model discloses the structure of bayonet gas parameter detection probe is the same with the bayonet gas parameter detection probe structure of the adoption of above-mentioned bayonet gas parameter detector, no longer gives unnecessary details.
Claims (10)
1. An insertion-type gas parameter detector is characterized by comprising:
the gas pipeline comprises a hollow probe rod, a gas inlet channel, a gas outlet channel, a gas inlet channel and a gas outlet channel, wherein one end of the hollow probe rod is an insertion end for being inserted into the gas pipeline;
the detection shell is connected to one end, far away from the insertion end, of the hollow probe rod, a detection cavity is formed inside the detection shell, and the air inlet channel and the air outlet channel are communicated with the detection cavity;
the gas detection sensor is communicated with the inner cavity of the detection cavity and at least comprises a methane sensor;
the thermal flowmeter is arranged at the insertion end of the hollow probe rod, and one of the two temperature sensors contained in the thermal flowmeter is used for outputting a temperature signal;
the plug-in gas parameter detector further comprises a signal processing module and a display gauge head connected with the signal processing module, the display gauge head is installed on the detection shell, the thermal flowmeter and the gas detection sensor are electrically connected with the signal processing module, and the display gauge head is used for displaying the temperature and the flow in the pipeline and the concentration of the detected gas.
2. The inserted gas parameter detector according to claim 1, wherein both temperature sensors of the thermal flowmeter are platinum resistance temperature sensors.
3. The plug-in gas parameter detector according to claim 1 or 2, wherein the detection housing is internally provided with a detection chamber and a pressure sensor, the inner cavity of the detection housing is communicated with the gas pipeline, the inner cavity of the detection chamber forms the detection chamber, the pressure sensor is connected with the signal processing module, and the pressure signal can be displayed on the display gauge head.
4. The plug-in gas parameter detector according to claim 3, wherein the gas inlet channel and the gas outlet channel are formed by two independent gas pipes penetrating the hollow probe, a section of the hollow probe inserted into the gas pipe is provided with a gas vent for communicating the inside and the outside of the hollow probe, and the inner cavity of the detection housing is communicated with the inner cavity of the hollow probe to realize communication with the gas pipe.
5. The plug-in gas parameter monitor according to claim 1 or 2, wherein the gas detection sensor further comprises an oxygen sensor and a carbon monoxide sensor.
6. The utility model provides an bayonet gas parameter detection probe rod, characterized by includes:
the gas pipeline comprises a hollow probe rod, a gas inlet channel, a gas outlet channel, a gas inlet channel and a gas outlet channel, wherein one end of the hollow probe rod is an insertion end for being inserted into the gas pipeline;
the detection shell is connected to one end, far away from the insertion end, of the hollow probe rod, a detection cavity is formed inside the detection shell, and the air inlet channel and the air outlet channel are communicated with the detection cavity; the detection shell is provided with a connecting end which is mechanically and electrically connected with the display gauge head;
the gas detection sensor is communicated with the inner cavity of the detection cavity and at least comprises a methane sensor;
and the thermal type flowmeter is arranged at the insertion end of the hollow probe rod, and one of the two temperature sensors contained in the thermal type flowmeter is used for outputting a temperature signal.
7. The inserted gas parameter detection probe according to claim 6, wherein both temperature sensors of the thermal flowmeter are platinum resistance temperature sensors.
8. The plug-in gas parameter detection probe according to claim 6 or 7, wherein a detection chamber and a pressure sensor are installed in the detection housing, the inner cavity of the detection housing is communicated with the gas pipeline, and the inner cavity of the detection chamber forms the detection chamber.
9. The plug-in gas parameter detection probe according to claim 8, wherein the gas inlet channel and the gas outlet channel are formed by two independent gas pipes penetrating the hollow probe, a section of the hollow probe inserted into the gas pipe is provided with a gas vent for communicating the inside and the outside of the hollow probe, and the inner cavity of the detection housing is communicated with the inner cavity of the hollow probe to realize communication with the gas pipe.
10. The plug-in gas parameter detection probe according to claim 6 or 7, wherein the gas detection sensor further comprises an oxygen sensor and a carbon monoxide sensor.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2019215639533 | 2019-09-19 | ||
| CN201921563953 | 2019-09-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210603403U true CN210603403U (en) | 2020-05-22 |
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Family Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921659035.0U Active CN210603404U (en) | 2019-09-19 | 2019-09-30 | Gas detector for gas drainage pipeline and gas detection probe rod thereof |
| CN201921659033.1U Active CN210603403U (en) | 2019-09-19 | 2019-09-30 | Plug-in gas parameter detection probe rod and detector |
| CN201910944179.9A Pending CN112525250A (en) | 2019-09-19 | 2019-09-30 | Gas detector for gas drainage pipeline and gas detection probe rod thereof |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921659035.0U Active CN210603404U (en) | 2019-09-19 | 2019-09-30 | Gas detector for gas drainage pipeline and gas detection probe rod thereof |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910944179.9A Pending CN112525250A (en) | 2019-09-19 | 2019-09-30 | Gas detector for gas drainage pipeline and gas detection probe rod thereof |
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| Country | Link |
|---|---|
| CN (3) | CN210603404U (en) |
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2019
- 2019-09-30 CN CN201921659035.0U patent/CN210603404U/en active Active
- 2019-09-30 CN CN201921659033.1U patent/CN210603403U/en active Active
- 2019-09-30 CN CN201910944179.9A patent/CN112525250A/en active Pending
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| Publication number | Publication date |
|---|---|
| CN112525250A (en) | 2021-03-19 |
| CN210603404U (en) | 2020-05-22 |
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