CN206348025U - A kind of gasifier gas flow rate measuring device - Google Patents
A kind of gasifier gas flow rate measuring device Download PDFInfo
- Publication number
- CN206348025U CN206348025U CN201720018337.4U CN201720018337U CN206348025U CN 206348025 U CN206348025 U CN 206348025U CN 201720018337 U CN201720018337 U CN 201720018337U CN 206348025 U CN206348025 U CN 206348025U
- Authority
- CN
- China
- Prior art keywords
- sleeve pipe
- sealing ring
- gas
- pitot tube
- thermal resistance
- 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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- Details Of Flowmeters (AREA)
Abstract
The utility model is a kind of gasifier gas flow rate measuring device, it includes Pitot tube (1), thermal resistance (2), fixed plate (3), sleeve pipe (4), removable seal ring (5) and end part seal flange (9), pressure gauge (11), temperature digital display meter (12) composition, Pitot tube (1), thermal resistance (2) are fixed in sleeve pipe (4) by fixed plate (3), and the prismatic pair sealing structure of removable seal ring (5) and sleeve pipe (4) formation makes sleeve pipe (4) remain able to reliably seal coal gas in movement.Measuring point in Pitot tube (1) entrance align with tube is gone out the flow velocity of the point using the dynamic pressure calculation read in pressure gauge (11) by described measurement apparatus.The utility model can rapidly measure the flow velocity and temperature of gasifier gas, and measure the flow of gas, pressure, the conventional detection that it can be used for during gasifier gas use on this basis.
Description
Technical field
The utility model is related to a kind of gasifier gas flow rate measuring device, belongs to the studying technological domain of clean fuel.
Described measurement apparatus is inserted into gasification furnace coal feed channel by its mobile secondary sealing carried, is measured using pitot tube method
The dynamic pressure of coal gas, just can obtain the flow velocity of the point, because measurement apparatus can be in caliber according to pitot tube method flow relocity calculation formula
On move freely, so the device can measure the flow velocity of radially arbitrfary point, thus being averaged for gasifier gas can be tried to achieve
Flow velocity.The device is accompanied by thermal resistance sensor on Pitot tube, and the temperature of the point can be measured simultaneously.
Background technology
Gasifier gas is using and will measure the flow velocity of coal gas in removal process, to determine its flow.It is presently used for
The method of gasification furnace coal gas velocity measurement mainly has inserting-type flowmeter, differential pressure flowmeter and ultrasonic flowmeter etc..For inserting
Enter formula flowmeter and differential pressure flowmeter, measuring cell is contacted with coal gas, the dust in coal gas easily causes flow meter from being blocked even
Damage.Although ultrasonic flowmeter is not contacted with coal gas, exist complicated, zero drift is big, sensitivity is low, needs are regular
The shortcomings of calibration, in engineering, it is often necessary to measure the flow velocity at each point on pipeline diverse location or same perforate section, due to
Contain the toxic components, H such as CO in gasifier gas2Content is high, belongs to flammable explosive gas, while its gas pressure is big, once
Leakage hazard can not pre-control, this carrys out great difficulty to measurement the opening up of thief hatch, band, and above-mentioned measurement apparatus is generally required
Carried out under end-of-life state, and once installed, traverse measurement position is very difficult.Therefore, they all have mobility
Difference, the shortcoming of coal gas each point flow velocity on conduit section can not be measured.
The content of the invention
The purpose of this utility model is to provide a kind of gasifier gas flow rate measuring device, can be quick using the device
The flow velocity of ground measurement coal gas in the duct, the device has mobility good, simple to operate, good airproof performance, safe and reliable advantage,
The flow velocity of each point on gas piping perforate section can be easily measured, for high-pressure gasified producer gas, the device is in change
It is very convenient during measuring point, the personal safety of operator will not be influenceed because of gas leak.The thermal resistance sensing of the device also band
Device, the temperature in the point can be measured simultaneously.
The utility model is realized by following scheme：Gasifier gas measures its dynamic pressure and quiet by Pitot tube
Pressure.Pitot tube is fixed in a sleeve pipe, there is dismountable sealing ring on an end connection flange and outer wall on the sleeve pipe,
Its effect is respectively：Fittings body is housed on cannula tip connection flange, Pitot tube is connected by flexible pipe and fittings body, so as to draw
Go out into external pressure table, carry another flange on sleeve outer wall on dismountable sealing ring, for being fixed on gas piping,
When needing measure of the change point, sleeve pipe can be moved freely in sealing ring, so that the Pitot tube movement of inside is driven, therefore can
To measure the flow velocity of radially each point.Cannula tip, which couples dismountable sealing ring on flange and sleeve outer wall, expires the device
Requirement during foot measurement difference gas velocity to device sealing, and the device can be assembled at the scene, be had
Advantage easy to carry.
Described dismountable sealing ring is made up of mounting flange seat, sealing ring and nut.Sealing ring is arranged on fixation
In annular groove in blue seat, length L=50~60mm of annular groove, internal diameter D=60~65mm of sealing ring.
The utility model is compared with existing technology, safe and reliable with mobility is good, good airproof performance, can quickly be become
The advantages of changing measuring point.By quickly moving sleeve pipe, meet in the requirement of same pipeline section requirement multimetering, moving process
Remain able to realize reliable sealing, adapted to gasifier gas in-site measurement and ensured that what is proposed extremely strictly will to personal safety
Ask.
Brief description of the drawings
The utility model is described in further detail with reference to the accompanying drawings and examples.
Fig. 1 is gasifier gas flow rate measuring device system diagram；
Dismountable sealing ring schematic diagram on Fig. 2 sleeve outer walls.
Embodiment
【Embodiment】
Fig. 1, Fig. 2 are one embodiment disclosed in the utility model.In Fig. 1, described measurement apparatus is by Pitot tube
(1), thermal resistance (2), fixed plate (3), sleeve pipe (4), removable seal ring (5) and end part seal flange (9), pressure gauge (11),
Temperature digital display meter (12) is constituted, and Pitot tube (1), thermal resistance (2) are fixed in sleeve pipe (4) by fixed plate (3), and sleeve pipe (4) can be with
Moved freely in removable seal ring (5), so as to drive Pitot tube (1) mobile, measure the flow velocity of radially each point.It is removable
Unloading the sealing structure of sealing ring (5) and sleeve pipe (4) formation makes sleeve pipe (4) remain able to ensure reliably to seal coal in movement
Gas.There are the first fittings body (8) and the second fittings body (10), the first fittings body (8) and the second fittings body on end part seal flange (9)
(10) quantity is 2, and the first fittings body (8) and the second fittings body (10) are directly communicated by the perforate in flange, flexible pipe
(7) Pitot tube (1) is connected with the first fittings body (8), its quantity is also 2, and the second fittings body (10) connects with pressure gauge (11)
Connect, the dynamic pressure of measured point coal gas can be read from pressure gauge (11).The electric signal of thermal resistance (2) is drawn by wire (6),
It is connected after extraction with digital display temperature meter (12), digital display temperature meter (12) is the temperature for directly reading coal gas.
In fig. 2, dismountable sealing ring is made up of mounting flange seat (13), sealing ring (14), nut (15).Flange seat
(13) it is to be formed by a standard flange and a cylinder welding with screw thread and annular groove, the annular groove of processing on the inside of sleeve,
For installing sealing ring, nut (15) is used to compress sealing ring (14), and the length of annular groove and the internal diameter of sealing ring are to gasification furnace
Coal gas is sealed with important influence, the length L=50mm of annular groove, the internal diameter D=65mm of sealing ring.Sealing ring (14) material
Matter is natural rubber.
Described measurement apparatus can directly move sleeve pipe (4), make Pitot tube with Fast transforms measuring point, after installing
In air inlet align with tube on certain point, at this moment removable seal ring (5) still ensures that the sealing of coal gas, so from pressure gauge
(11) with regard to the dynamic pressure of the point can be read, the flow velocity of the point can be obtained according to pitot tube method flow relocity calculation formula.
Claims (2)
1. a kind of gasifier gas flow rate measuring device, by Pitot tube (1), thermal resistance (2), fixed plate (3), sleeve pipe (4), removable
Unload sealing ring (5) and end part seal flange (9), pressure gauge (11), temperature digital display meter (12) composition, it is characterised in that：Pitot tube
(1), thermal resistance (2) is fixed in sleeve pipe (4) by fixed plate (3), and sleeve pipe (4) can be moved in removable seal ring (5), can
Dismounting sealing ring (5) and the prismatic pair sealing structure of sleeve pipe (4) formation reliably seal coal gas when ensureing and measuring.
2. measurement apparatus according to claim 1, it is characterised in that removable seal ring (5) by mounting flange seat (13),
Sealing ring (14) and nut (15) composition, sealing ring (14) are arranged in the annular groove in mounting flange seat, the length L of annular groove
=50~60mm, internal diameter D=60~65mm of sealing ring (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720018337.4U CN206348025U (en) | 2017-01-09 | 2017-01-09 | A kind of gasifier gas flow rate measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720018337.4U CN206348025U (en) | 2017-01-09 | 2017-01-09 | A kind of gasifier gas flow rate measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206348025U true CN206348025U (en) | 2017-07-21 |
Family
ID=59324549
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720018337.4U Expired - Fee Related CN206348025U (en) | 2017-01-09 | 2017-01-09 | A kind of gasifier gas flow rate measuring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206348025U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109238907A (en) * | 2018-10-26 | 2019-01-18 | 联峰钢铁（张家港）有限公司 | It is matched in the dust content detection device of blast-furnace top gas recovery turbine generator |
| CN113701835A (en) * | 2021-08-30 | 2021-11-26 | 安徽理工大学 | High-precision self-correcting ultrasonic coal bed gas extraction pipe network flowmeter |
-
2017
- 2017-01-09 CN CN201720018337.4U patent/CN206348025U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109238907A (en) * | 2018-10-26 | 2019-01-18 | 联峰钢铁（张家港）有限公司 | It is matched in the dust content detection device of blast-furnace top gas recovery turbine generator |
| CN113701835A (en) * | 2021-08-30 | 2021-11-26 | 安徽理工大学 | High-precision self-correcting ultrasonic coal bed gas extraction pipe network flowmeter |
| CN113701835B (en) * | 2021-08-30 | 2023-12-08 | 安徽理工大学 | High-precision self-correction ultrasonic coal bed gas extraction pipe network flowmeter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170721 Termination date: 20200109 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |