CN203798396U - Hot type flowmeter - Google Patents
Hot type flowmeter Download PDFInfo
- Publication number
- CN203798396U CN203798396U CN201420175665.1U CN201420175665U CN203798396U CN 203798396 U CN203798396 U CN 203798396U CN 201420175665 U CN201420175665 U CN 201420175665U CN 203798396 U CN203798396 U CN 203798396U
- Authority
- CN
- China
- Prior art keywords
- thermal flowmeter
- sensor
- utility
- measuring
- model
- 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
Links
- 238000004891 communication Methods 0.000 claims abstract description 12
- 229910052802 copper Inorganic materials 0.000 claims abstract description 9
- 239000010949 copper Substances 0.000 claims abstract description 9
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 8
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims description 6
- 229910000975 Carbon steel Inorganic materials 0.000 claims description 3
- 239000010962 carbon steel Substances 0.000 claims description 3
- 229910052697 platinum Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 230000010354 integration Effects 0.000 abstract 1
- 238000007789 sealing Methods 0.000 abstract 1
- 238000009434 installation Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000009792 diffusion process Methods 0.000 description 2
- 230000004907 flux Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000008439 repair process Effects 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000007726 management method Methods 0.000 description 1
- 239000003550 marker Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Landscapes
- Measuring Volume Flow (AREA)
Abstract
The utility model belongs to the technical field of measuring and particularly discloses a hot type flowmeter which comprises a meter head, a switching nut, a scale connecting rod, a ball valve, a pipe connection pipe, a display instrument, a button, a sensor connecting rod lock nut, a red copper washer and a sealing ring. The hot type flowmeter provided by the utility model has the benefits as follows: 1, temperature and pressure compensation are not required for gas flow measuring, and the measuring is accurate; 2, the range ratio is wide, gas with a flow rate ranging from 100 Nm/s to 0.5 Nm/s can be measured, and the application range is wide; 3, the mounting and maintaining are simple and convenient, integral digital circuit measuring is realized, the maintenance is convenient, and non-stop mounting and maintaining can be realized under the permission of site conditions; 4, RS-485 communication or Hart communication is adopted, and factory automation or integration is realized. Moreover, the hot type flowmeter provided by the utility model has a simple structure, is low in production cost and easy to popularize.
Description
Technical field
The utility model relates to field of measuring technique, is specifically related to a kind of thermal flowmeter.
Background technology
As everyone knows, thermal flowmeter adopts thermal diffusion principle, thermal diffusion technology be a kind of under harsh conditions function admirable, technology that reliability is high; When heat type flow quantity is placed in medium in respect of two temperature sensors, one of them sensor be heated to more than environment temperature temperature, another temperature sensor is for induction medium temperature, velocity of medium increases, the heat that medium is taken away increases, the temperature difference of two temperature sensors changes the change in flow with medium, according to the proportionate relationship of temperature difference and velocity of medium, draws fluid flow Q.At present, common heat type flow quantity is counted duct type structure, and it uses trouble flowmeter need to be arranged on pipeline with bolt, when keeping in repair or changing, will cut off source of the gas, and impact is produced, and its measuring error of while is large, poor seismic behavior, and serviceable life is short.
Therefore,, based on the problems referred to above, the utility model provides a kind of thermal flowmeter.
Utility model content
Utility model object: the purpose of this utility model provides a kind of thermal flowmeter, solve existing duct type flowmeter installation, maintenance inconvenience, measuring error is large, poor seismic behavior, the problem that serviceable life is short, the thermal flowmeter that can install and keep in repair in the situation that not cut off source of the gas.
Technical scheme: a kind of thermal flowmeter, comprises gauge outfit, switching nut, scale connecting link, ball valve, connecting pipe of pipeline, Displaying Meter, button, sensor connecting bar locking nut, copper washer and O-ring seal; Described gauge outfit is connected with scale connecting link one end by switching nut; The described scale connecting link other end is connected with ball valve one end; The described ball valve other end is connected with connecting pipe of pipeline; Described Displaying Meter, button are arranged on gauge outfit one side inside; Described sensor connecting bar locking nut, copper washer and O-ring seal are arranged on scale connecting link from top to bottom; Described thermal flowmeter also arranges RS-485 communication interface or HART communication interface; Described thermal flowmeter also comprises sensor and converter, wherein converter connecting sensor and Displaying Meter respectively.
Further described sensor forms bridge-type loop by two reference level platinum resistance temperature sensors.
Further described senor operating temperature is subzero 10 DEG C to 200 DEG C, and converter working temperature is subzero 20 DEG C to 45 DEG C.
Further described connecting pipe of pipeline adopts carbon steel or stainless steel.
Compared with prior art, the beneficial effect of a kind of thermal flowmeter of the present utility model is: 1, gas flow measurement is compensated without temperature and pressure, measure precisely; 2, wide-range ratio, measurable flow speed is high to the gas to 0.5Nm/s at the bottom of 100Nm/s, applied widely; 3, installation and maintenance are easy, in the situation of overall digital circuit measuring, conditions permit at the scene easy to maintenance, can realize the installation and maintenance that do not stop production; 4, adopt RS-485 communication or Hart communication, realize factory automation or integrated.The utility model is simple in structure simultaneously, production cost is low, easily popularization.
Brief description of the drawings
Fig. 1 is the structural representation of a kind of thermal flowmeter of the present utility model;
Displaying Meter interface schematic diagram when Fig. 2 is a kind of thermal flowmeter work of the present utility model;
Wherein in figure, sequence number is as follows: 1-gauge outfit, 2-switching nut, 3-scale connecting link, 4-ball valve, 5-connecting pipe of pipeline, 6-Displaying Meter, 7-button, 8-sensor connecting bar locking nut, 9-copper washer, 10-O-ring seal.
Embodiment
Below in conjunction with the drawings and specific embodiments, further illustrate the utility model.
A kind of thermal flowmeter as shown in Figure 1, comprises gauge outfit 1, switching nut 2, scale connecting link 3, ball valve 4, connecting pipe of pipeline 5, Displaying Meter 6, button 7, sensor connecting bar locking nut 8, copper washer 9 and O-ring seal 10; Gauge outfit 1 is connected with scale connecting link 3 one end by switching nut 2; Scale connecting link 3 other ends are connected with ball valve 4 one end; Ball valve 4 other ends are connected with connecting pipe of pipeline 5; Displaying Meter 6, button 7 are arranged on gauge outfit 1 one side inside; Sensor connecting bar locking nut 8, copper washer 9 and O-ring seal 10 are arranged on scale connecting link 3 from top to bottom; Thermal flowmeter also comprises sensor and converter, wherein converter connecting sensor and Displaying Meter 6 respectively; Sensor forms bridge-type loop by two reference level platinum resistance temperature sensors, and senor operating temperature is subzero 10 DEG C to 200 DEG C, and converter working temperature is subzero 20 DEG C to 45 DEG C.
Wherein, when medium temperature to be measured is at 100 DEG C of following nylon washers that adopt, more than 100 DEG C adopt copper washer 9.
Embodiment
When installation, first confirm pipeline actual inner diameter to be installed and wall thickness, again the remainder of thermal type gas quality flow meter is packed in ball-valve dedicated together, calculate according to actual internal diameter of the pipeline and wall thickness gauge the degree of depth that will insert, rotate again scale connecting link 3, make marker arrow identical with media flow direction, the last data reduction recording according to scene goes out the corresponding scale on scale connecting link 3, lock sensor connecting bar locking nut 8.
Wherein, on thermal flowmeter RS-485 communication interface or HART communication interface be set, can be fast and accurate by measured liquid level communication, and then carry out monitoring management; Connecting pipe of pipeline 5 adopts carbon steel or stainless steel, wear-resisting, corrosion-resistant long service life.
The interface that further thermal flowmeter startup self-detection 1-2 Displaying Meter second 6 jumps to as shown in Figure 2, wherein label 11: instrument running status shows in real time, shows " OK " if normal, and fault shows " ERR "
Label 22: warning passage 1 identifies, shows that AL1 represents that passage 1 reports to the police.
Label 33: warning passage 2 identifies, shows that AL2 represents that passage 2 reports to the police.
Label 44: instrument electric current output overflow indicator, if demonstration " mA " is overflowed in electric current output.
Label 55: in order conveniently to show and to read, integrated flux exceedes the accumulation of 10000000 o'clock instrument and shows after data will be multiplied by 1000 and be only real accumulated value.
Label 66: the demonstration of instrument communication state information, front three represents table number; The 4th bit representation parity check bit, 0:
No parity check; 1: odd; 2: even parity check; The 5th bit representation baud, 0:1200; 1:2400; 2:4800; 3:9600.
Label 77: instantaneous delivery value shows, shows that maximal value is 9999999.
Label 88: integrated flux shows, shows that numerical value is 8 to the maximum.
Label 99: current mark flow velocity shows (mark meter per second).
Label 00: current measuring media temperature demonstration (DEG C).
When thermal flowmeter of the present utility model uses, inner scale connecting link 3 sensor one end arranging is connected to pipe under test by connecting pipe of pipeline 5 can be measured, and simple, practical, digitized measurement numerical value is accurate.
The above is only preferred implementation of the present utility model; it should be pointed out that for those skilled in the art, do not departing under the prerequisite of the utility model principle; can also make some improvement, these improve and also should be considered as protection domain of the present utility model.
Claims (4)
1. a thermal flowmeter, is characterized in that: comprise gauge outfit (1), switching nut (2), scale connecting link (3), ball valve (4), connecting pipe of pipeline (5), Displaying Meter (6), button (7), sensor connecting bar locking nut (8), copper washer (9) and O-ring seal (10); Described gauge outfit (1) is connected with scale connecting link (3) one end by switching nut (2); Described scale connecting link (3) other end is connected with ball valve (4) one end; Described ball valve (4) other end is connected with connecting pipe of pipeline (5); Described Displaying Meter (6), button (7) are arranged on gauge outfit (1) one side inside; Described sensor connecting bar locking nut (8), copper washer (9) and O-ring seal (10) are arranged on scale connecting link (3) from top to bottom; Described thermal flowmeter also arranges RS-485 communication interface or HART communication interface; Described thermal flowmeter also comprises sensor and converter, wherein converter connecting sensor and Displaying Meter (6) respectively.
2. a kind of thermal flowmeter according to claim 1, is characterized in that: described sensor forms bridge-type loop by two reference level platinum resistance temperature sensors.
3. a kind of thermal flowmeter according to claim 1, is characterized in that: described senor operating temperature is subzero 10 DEG C to 200 DEG C, and converter working temperature is subzero 20 DEG C to 45 DEG C.
4. a kind of thermal flowmeter according to claim 1, is characterized in that: described connecting pipe of pipeline (5) adopts carbon steel or stainless steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420175665.1U CN203798396U (en) | 2014-04-14 | 2014-04-14 | Hot type flowmeter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420175665.1U CN203798396U (en) | 2014-04-14 | 2014-04-14 | Hot type flowmeter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203798396U true CN203798396U (en) | 2014-08-27 |
Family
ID=51380601
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420175665.1U Expired - Fee Related CN203798396U (en) | 2014-04-14 | 2014-04-14 | Hot type flowmeter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203798396U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108603902A (en) * | 2016-02-06 | 2018-09-28 | 深圳华盛昌机械实业有限公司 | Induction type test pencil and application method |
| CN114252120A (en) * | 2021-12-31 | 2022-03-29 | 江苏迅创科技股份有限公司 | Micro-range thermal type gas mass flow meter |
-
2014
- 2014-04-14 CN CN201420175665.1U patent/CN203798396U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108603902A (en) * | 2016-02-06 | 2018-09-28 | 深圳华盛昌机械实业有限公司 | Induction type test pencil and application method |
| CN114252120A (en) * | 2021-12-31 | 2022-03-29 | 江苏迅创科技股份有限公司 | Micro-range thermal type gas mass flow meter |
| CN114252120B (en) * | 2021-12-31 | 2022-09-23 | 熊萌娇 | Micro-range thermal type gas mass flow meter |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202533355U (en) | System for simulating field dynamic corrosion of acid natural gas field | |
| US9459126B2 (en) | Flow meter | |
| CN201497531U (en) | Heating pipe network steam flow totalizer | |
| CN204944552U (en) | A kind of multi-functional flow sensor | |
| CN203798396U (en) | Hot type flowmeter | |
| CN201583365U (en) | Heat meter based on dynamic throttling element flow meter | |
| CN101660956B (en) | Heat meter based on dynamic throttling element flowmeter | |
| CN201083513Y (en) | Deep water level high precision sensor device | |
| CN210802568U (en) | Arnuba formula gas metering device | |
| CN110672166A (en) | A Multipoint Measurement Bitoba Flowmeter | |
| CN201716132U (en) | Heat meter with pressure measurement function | |
| CN204788515U (en) | Curved elbow meter of S | |
| CN203881389U (en) | High-efficiency and high-accuracy thermal flowmeter | |
| CN207963969U (en) | A kind of wedge flow meter | |
| CN101788521A (en) | On-line metal corrosion condition detection method and detection instrument thereof | |
| CN207740154U (en) | A kind of motor-driven feed-water pump set efficiency test system | |
| CN201867272U (en) | Ultrasonic heat and cold meter | |
| CN216081634U (en) | Data storage device capable of collecting flow of flowmeter in real time | |
| CN202372864U (en) | Multifunctional intelligent flow measurement and control instrument | |
| CN204142311U (en) | Single-point backrest is from deashing wear-resisting type differential pressure wind gage flue gas flow meter | |
| CN204177426U (en) | Plug-in type one-piece type temperature and pressure compensation holder hand shaft flowmeter | |
| CN202074998U (en) | System for detecting and metering methane in sewage gas | |
| CN223389235U (en) | Cooling water flow detection device of heating furnace | |
| CN207894534U (en) | A kind of simple temperature observation circuit | |
| CN222993776U (en) | Fluid flow measuring device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140827 Termination date: 20200414 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |