CN206862428U - Thermal type gas quality flow meter - Google Patents
Thermal type gas quality flow meter Download PDFInfo
- Publication number
- CN206862428U CN206862428U CN201720420892.XU CN201720420892U CN206862428U CN 206862428 U CN206862428 U CN 206862428U CN 201720420892 U CN201720420892 U CN 201720420892U CN 206862428 U CN206862428 U CN 206862428U
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- CN
- China
- Prior art keywords
- probe
- tachogenerator
- temperature transducer
- tubular
- metallic support
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a kind of thermal type gas quality flow meter, gauge outfit, sensor probe including thermal mass flow meter, the side of sensor probe is provided with gassing pipe, the inflatable mouth alignment sensor probe of gassing pipe, gassing pipe are provided with breather cheek valve, nitrogen are accessed by breather cheek valve, nitrogen is set directly to blow on sensor probe, the dirty material adsorbed on sensor probe is blown away, measurement error can be greatly reduced, to ensure measurement accuracy；Sensor probe is made up of signal wire, the heat-barrier material of tubular probe metallic support, heat-retarding clapboard, temperature transducer tubular body, tachogenerator tubular body, temperature transducer and tachogenerator, the cavity of tubular probe metallic support is divided into the Liang Ge areas for placing temperature transducer tubulose and tachogenerator tubular body by heat-retarding clapboard, the signal wire of temperature transducer and tachogenerator is drawn from the upper end of tubular probe metallic support and is connected with gauge outfit, further improves measurement accuracy.
Description
Technical field
Flowmeter technology field is the utility model is related to, particularly relates to a kind of thermal type gas quality flow meter.
Background technology
What conventional thermal mass flow meter manufactured and designed according to " thermal diffusion " principle, but because the gas of measurement often contains
There is the dirty material such as particulate matter, dust, can be attached on probe influences measurement accuracy.And existing thermal type gas quality flow meter
There are two sensors, a sensor is used for measuring the temperature of gas medium, referred to as temperature transducer；Another sensor is certainly
It is dynamic to be heated to above medium temperature and arrive, for measuring fluid velocity, referred to as tachogenerator.
And thermal type gas quality flow meter probe is generally duct type structure, temperature transducer and tachogenerator are respectively
Two tubular bodies, two tubular bodies are set in parallel under test gas medium, and are not provided with thermal resistance between two tubular bodies
Dividing plate, therefore the high temperature of tachogenerator will pass through conduction, convection current and radiation so that the temperature departure that temperature transducer measures
Gas medium actual temperature, causes measurement error.
Therefore, it is necessary to a kind of new thermal type gas quality flow meter is designed, to solve above-mentioned technical problem.
Utility model content
For problem present in background technology, the purpose of this utility model is to provide a kind of thermal type gas quality flow
Meter, measurement error can be greatly reduced, improve measurement accuracy.
What the technical solution of the utility model was realized in：A kind of thermal type gas quality flow meter, including thermal mass
The gauge outfit of flowmeter, the sensor probe being connected with gauge outfit by connecting rod, the side of the sensor probe are provided with gassing pipe,
The gassing pipe is provided with inflatable mouth, the inflatable mouth alignment sensor probe, and the gassing pipe is provided with one-way air inlet
Valve；The sensor probe is by tubular probe metallic support, heat-retarding clapboard, temperature transducer tubular body, tachogenerator tubulose
Body, the signal wire of temperature transducer and tachogenerator, heat-barrier material are formed, and are set in the cavity of tubular probe metallic support
There is heat-retarding clapboard, the cavity of tubular probe metallic support is divided into Liang Ge areas by heat-retarding clapboard, and temperature transducer tubular body is arranged on
In one area of the cavity of tubular probe metallic support, tachogenerator tubular body is arranged on the cavity of tubular probe metallic support
Another area in, temperature transducer tubular body and tachogenerator tubular body are separated by heat-retarding clapboard, temperature transducer tubulose
The upper end of body and tachogenerator tubular body is arranged on the top of tubular probe metallic support, temperature transducer by heat-barrier material
Draw through connecting rod from the upper end of tubular probe metallic support with the signal wire of tachogenerator and be connected with gauge outfit.
In the above-mentioned technical solutions, the gassing pipe is located in connecting rod.
In the above-mentioned technical solutions, the gassing pipe is copper pipe.
In the above-mentioned technical solutions, the inflatable mouth bore of the gassing pipe is 6mm-10mm.
The utility model thermal type gas quality flow meter, nitrogen is accessed by breather cheek valve, using gassing pipe nitrogen
Gas is sent at sensor probe, nitrogen is directly blown on sensor probe, the soil adsorbed on sensor probe
Matter is blown away, and to ensure measurement accuracy, while the design of sensor probe, measurement error can be greatly reduced, and is further improved and is surveyed
Accuracy of measurement.
Brief description of the drawings
Fig. 1 is the utility model thermal type gas quality flow meter structural representation.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out
Clearly and completely describe, it is clear that described embodiment is only the utility model part of the embodiment, rather than whole realities
Apply example.Based on the embodiment in the utility model, those of ordinary skill in the art institute under the premise of creative work is not made
The every other embodiment obtained, belong to the scope of the utility model protection.
As shown in figure 1, a kind of thermal type gas quality flow meter described in the utility model, including thermal mass flow meter
Gauge outfit 1, sensor probe 2, the sensor probe 2 are connected by connecting rod 3 with gauge outfit 1, and the side of the sensor probe 2 is set
There is gassing pipe 4, the gassing pipe 4 is provided with inflatable mouth 41, the alignment sensor of inflatable mouth 41 probe 2, the air blowing
Pipeline 4 is provided with breather cheek valve 5.The gassing pipe 4 is located in connecting rod 3.The gassing pipe 4 is copper pipe.The air blowing
The bore of the inflatable mouth 41 of pipeline 4 is 6mm-10mm.
Sensor probe 2 is by tubular probe metallic support 20, heat-retarding clapboard 21, temperature transducer tubular body 22, test the speed biography
Signal wire 24, the heat-barrier material 25 of sensor tubular body 23, temperature transducer and tachogenerator are formed.
It is provided with heat-retarding clapboard 21 in the cavity of tubular probe metallic support 25, heat-retarding clapboard 21 is by tubular probe metal
The cavity of support 20 is divided into Liang Ge areas, and temperature transducer tubular body 22 is installed in the one of the cavity of tubular probe metallic support 20
In individual area, tachogenerator tubular body 23 is installed in another area of the cavity of tubular probe metallic support 20, and thermometric passes
Sensor tubular body 22 and tachogenerator tubular body 23 are separated by heat-retarding clapboard 21, temperature transducer tubular body 22 and the sensing that tests the speed
The upper end of device tubular body 23 is arranged on the top of tubular probe metallic support 20 by heat-barrier material 25, temperature transducer and tests the speed
The signal wire 24 of sensor is drawn through connecting rod 3 from the upper end of tubular probe metallic support 20 and is connected with gauge outfit 1.
In use, breather cheek valve 5 is connected with nitrogen air intake apparatus, after opening breather cheek valve 5, nitrogen can be with blowing
Feed channel 4 is blowed on sensor probe 2 by inflatable mouth 41, and the dirty material on sensor probe 2 is blown away, makes sensor probe
2 become clean, ensure the accurate of measurement accuracy.
The utility model thermal type gas quality flow meter, nitrogen is accessed by breather cheek valve 5, utilizes gassing pipe 4
Nitrogen is sent at sensor probe 2, nitrogen is directly blown on sensor probe 2, dirty what is adsorbed on sensor probe 2
Dirt matter is blown away, and to ensure measurement accuracy, while the design of sensor probe 2, measurement error can be greatly reduced, further carry
High measurement accuracy.
Preferred embodiment of the present utility model is the foregoing is only, it is all at this not to limit the utility model
Within the spirit and principle of utility model, any modification, equivalent substitution and improvements made etc., the utility model should be included in
Protection domain within.
Claims (4)
- A kind of 1. thermal type gas quality flow meter, it is characterised in that：Gauge outfit including thermal mass flow meter and gauge outfit pass through company The connected sensor probe of bar, the side of the sensor probe are provided with gassing pipe, and the gassing pipe is provided with inflatable mouth, The inflatable mouth alignment sensor probe, the gassing pipe are provided with breather cheek valve；The sensor probe is visited by tubulose Head metallic support, heat-retarding clapboard, temperature transducer tubular body, tachogenerator tubular body, temperature transducer and tachogenerator Signal wire, heat-barrier material form, be provided with heat-retarding clapboard in the cavity of tubular probe metallic support, heat-retarding clapboard is by tubulose The cavity of probe metallic support is divided into Liang Ge areas, and temperature transducer tubular body is arranged on the one of the cavity of tubular probe metallic support In individual area, tachogenerator tubular body is arranged in another area of the cavity of tubular probe metallic support, temperature transducer pipe Shape body and tachogenerator tubular body are separated by heat-retarding clapboard, the upper end of temperature transducer tubular body and tachogenerator tubular body It is arranged on the top of tubular probe metallic support by heat-barrier material, the signal wire of temperature transducer and tachogenerator is from tubulose The upper end of probe metallic support is drawn to be connected through connecting rod with gauge outfit.
- 2. thermal type gas quality flow meter according to claim 1, it is characterised in that：The gassing pipe is located at connecting rod It is interior.
- 3. thermal type gas quality flow meter according to claim 1, it is characterised in that：The gassing pipe is copper pipe.
- 4. thermal type gas quality flow meter according to claim 1, it is characterised in that：The inflatable mouth mouth of the gassing pipe Footpath is 6mm-10mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720420892.XU CN206862428U (en) | 2017-04-19 | 2017-04-19 | Thermal type gas quality flow meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720420892.XU CN206862428U (en) | 2017-04-19 | 2017-04-19 | Thermal type gas quality flow meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206862428U true CN206862428U (en) | 2018-01-09 |
Family
ID=60816247
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720420892.XU Expired - Fee Related CN206862428U (en) | 2017-04-19 | 2017-04-19 | Thermal type gas quality flow meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206862428U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115900859A (en) * | 2023-01-05 | 2023-04-04 | 杭州泽天春来科技有限公司 | Flue gas flow monitoring device and method |
-
2017
- 2017-04-19 CN CN201720420892.XU patent/CN206862428U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115900859A (en) * | 2023-01-05 | 2023-04-04 | 杭州泽天春来科技有限公司 | Flue gas flow monitoring device and method |
| CN115900859B (en) * | 2023-01-05 | 2023-08-29 | 杭州泽天春来科技有限公司 | Flue gas flow monitoring device and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180109 Termination date: 20200419 |