CN206311151U - Merogenesis superposing type multiple branch circuit pipe and the accurate measure and control device of contactless flow - Google Patents
Merogenesis superposing type multiple branch circuit pipe and the accurate measure and control device of contactless flow Download PDFInfo
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- CN206311151U CN206311151U CN201621496845.5U CN201621496845U CN206311151U CN 206311151 U CN206311151 U CN 206311151U CN 201621496845 U CN201621496845 U CN 201621496845U CN 206311151 U CN206311151 U CN 206311151U
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- merogenesis
- branch circuit
- multiple branch
- superposing type
- circuit pipe
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Abstract
The utility model discloses a kind of merogenesis superposing type multiple branch circuit pipe and the accurate measure and control device of contactless flow, including merogenesis superposing type multiple branch circuit pipe, large aperture differential pressure Venturi tube and aspiration pump are connected by merogenesis superposing type multiple branch circuit pipe, there is heating pipe before merogenesis superposing type multiple branch circuit pipe, the Pipe installing temperature-humidity sensor between merogenesis superposing type multiple branch circuit pipe and large aperture differential pressure Venturi tube；Can be kept completely separate between merogenesis superposing type each length of tubing of multiple branch circuit pipe, there is gas-tpe fitting at each length of tubing middle part, per length of tubing two ends with the sealing fastening docking of adjacent articulated conduit；The differential pressure of large aperture differential pressure Venturi tube is transferred to difference gauge and is converted to electric signal transmission to house steward's control module of sampling.The utility model is solved because directly circulation sample gas makes clear to be cleaned after multiple branch circuit pipe is dirty, and the problem such as contact flow measuring probe easy laying dust obstruction, and manufacture easy to process, installations, disassembling section simplicity.
Description
Technical field
The utility model belongs to surrounding air (air) monitoring technical field, and in particular to a kind of merogenesis superposing type multiple branch circuit
Pipe, and the flow accurate measure and control device contactless with sample throughput.
Background technology
In order to prevent and treat environmental air pollution, the most air pollutants of automatic monitor station point in the world have been had now in China
Monitoring network.The prior art of air sampling house steward is used by these websites：Its multiple branch circuit pipe be on a segment pipe by
Being inserted apart from perforate for National Technical specification (hereinafter referred to as technical specification) requirement fixes gas-tpe fitting (for each gas pollutant prison
Survey instrument and extract sample gas)；Its pumping power is exhaust fan (effect is to ensure that sample throughput meets demand of technical standard).So make
Into multiple branch circuit pipe, it is more long to there is length, and each joint must be inserted into Guan Nei centers, and need to have larger pipe interior diameter with
The shortcomings of being adapted to exhaust fan dynamic characteristics and limitation, thus be after flue dust institute during long-term use is by air is dirty cannot be with scrubbing
Instrument (or using ultrasonic cleaner) clear cleaning, and very fragile joint and cause gas leakage.Furthermore, it is pumping with exhaust fan
Power is cannot accurate measurement sample throughput --- especially on-line continuous measurement.
Obviously, clear can not be cleaned after original multiple branch circuit pipe is dirty, be its as an entirety when internals phase mutual resistance
Gear, and the bodily form is larger, it is impossible to using Cleaning tool or be dipped into ultrasonic cleaner.And the pumping power that exhaust fan is provided is only
The situation of chimneying resistance very little can be adapted to, be not enough to drive existing metering flowmeter accurate measurement sample throughput.
As can be seen here, in order to generally improve ambient air monitoring data quality control level, it is to avoid sampling house steward performance lacks
Falling into causes sample gas pollutant concentration to be not equal to actual environment air, makes accuracy, the reliability of Monitoring Data to huge people
The return of power material resources expense is (not wasting at least) to one's profit, it is felt to be desirable to which grinding to create can solve above-mentioned problem, and
The new technology of energy popularity.
Utility model content
In view of the shortcomings of the prior art, the utility model provides a kind of merogenesis superposing type multiple branch circuit pipe and contactless stream
Accurate measure and control device is measured, is solved because directly circulation sample gas makes clear to be cleaned after multiple branch circuit pipe is dirty, and contact
The problems such as the easy laying dust obstruction of flow measuring probe.
The technical solution of the utility model：A kind of merogenesis superposing type multiple branch circuit pipe, the merogenesis superposing type multiple branch circuit pipe by
At least 2-section pipe trace-stacking is formed, and has a gas-tpe fitting in the middle part of each of which length of tubing, and its air inlet is extend into pipeline
The heart；The two ends of each length of tubing and adjacent each length of tubing sealing fastening docking.
The air inlet of above-mentioned gas-tpe fitting extends to pipeline center, and internal diameter of the pipeline is more than 15mm.The two ends of the pipeline lead to
Connecting elements is crossed with adjacent each length of tubing sealing fastening docking.
The material of above-mentioned merogenesis superposing type multiple branch circuit pipe is polytetrafluoroethylene (PTFE), and the internal diameter of the pipeline of each section is 19mm, and length is
100mm；There are external screw thread, the internal thread of precession connecting elements and the sealing fastening docking of adjacent articulated conduit in two ends.The tracheae connects
Head connection diameter conveys sample gas for the polyfluortetraethylene pipe of 6mm to monitoring instrument.
A kind of contactless accurate measure and control device of flow described in the utility model, including merogenesis superposing type as described above is more
Bypass duct, large aperture differential pressure Venturi tube and aspiration pump are connected by merogenesis superposing type multiple branch circuit pipe, many in merogenesis superposing type
There is heating pipe before bypass duct, the Pipe installing temperature between merogenesis superposing type multiple branch circuit pipe and large aperture differential pressure Venturi tube
Degree, humidity sensor；Can be kept completely separate between merogenesis superposing type each length of tubing of multiple branch circuit pipe, each length of tubing middle part has tracheae to connect
Head, per length of tubing two ends with the sealing fastening docking of adjacent articulated conduit；The differential pressure of large aperture differential pressure Venturi tube is transferred to difference
Pressure meter is converted to electric signal transmission and gives sampling house steward's control module.
Above-mentioned sampling house steward control module can provide flow measuring data, be taken out by air monitering mission requirements control check valve
Air pump, and connect temperature-humidity sensor and heating pipe, there is provided sample temperature degree, humidity data and according to temperature, humidity control
Appropriate heating sample gas processed；Check valve aspiration pump overcomes sample gas gas-flow resistance fluctuation to provide required flow.
The utility model has following distinguishing feature：
The utility model is by Guangdong Province Marine Environmental Monitoring Center, and the ground environmental monitoring center such as Shenzhen, Zhongshan city
The website that station is specified is used, and is provided with the merogenesis superposing type multiple branch circuit pipe of the utility model offer, and supporting large aperture differential pressure
The contactless flowmeter of Venturi tube (transmitter).Service condition shows：The manufacture easy to process of merogenesis superposing type multiple branch circuit pipe, peace
Dress, and disassembling section is easy；Often saved after separation and clear can scrubbed (or being directly placed into cleaning in small ultrasonic cleaner).Sample gas
Flow, temperature, moisture measurement, and the function apparatus such as check valve aspiration pump, heating pipe, can be with commercially available normalization general-purpose device
Integrated, data are accurate, reliable, observing and controlling full automation, intellectuality, stable performance, durable.
Brief description of the drawings
Fig. 1 is the structural representation of wherein one section of merogenesis superposing type multiple branch circuit pipe described in the utility model embodiment；
Fig. 2 is merogenesis superposing type multiple branch circuit pipe described in the utility model embodiment and the contactless accurate observing and controlling of sample throughput
The general assembly structural representation of device.In figure：
1st, merogenesis superposing type multiple branch circuit pipe；2nd, connecting elements；3rd, large aperture differential pressure Venturi tube；4th, difference gauge (pick-up
Device)；5th, check valve aspiration pump；6th, sampling house steward's control module；7th, extensional pipeline；8th, air sampling mouthful；9th, heating pipe；10、
Temperature-humidity sensor.
Specific embodiment
As shown in figure 1, merogenesis superposing type multiple branch circuit pipe described in the utility model embodiment is by the design of multiple branch circuit tubular construction
It is merogenesis superposing type structure, there is a gas-tpe fitting in the middle part of each length of tubing, its air inlet extend into pipeline center；Each section
The two ends of pipeline can make the spacing of gas-tpe fitting after docking with adjacent each section sealing fastening docking, the length of each length of tubing
From demand of technical standard is met, joint number can be changed by the actually required sample qi leel fluxion in website scene.
Generally, according to demand of technical standard, the air inlet of gas-tpe fitting extends to pipeline center, and internal diameter of the pipeline is slightly larger than skill
Art code requirement (is more than 15mm), and pipe ends have the knot for sealing fastening docking with adjacent each length of tubing by pipe connection component
Structure.
As shown in Fig. 2 the contactless accurate measure and control device of flow described in the utility model embodiment is to set pumping power
The aspiration pump with check valve is calculated as, and flow measurement is carried out using Venturi tube.Connect after above-mentioned merogenesis superposing type multiple branch circuit pipe 1
Connect the entrance of a large aperture (can anti-laying dust obstruction) differential pressure Venturi tube 3, the differential pressure ports connection differential pressure of the Venturi tube
4 (transmitters) of meter realize contactless accurate observing and controlling sample throughput；The Venturi exit is connected to check valve aspiration pump 5, should
Check valve aspiration pump is approaching no-load running.Thus, (i.e. it arrives air sampling entrance to the internal diameter of merogenesis superposing type multiple branch circuit pipe 1
Extensional pipeline internal diameter) only need to reach demand of technical standard minimum diameter can (i.e. volume should be as small as possible), to protect
Card sample gas is met under conditions of demand of technical standard (less than 20 seconds) by the time, and optional no load discharge is tried one's best small check valve
Aspiration pump, and make each length of tubing volume of merogenesis superposing type multiple branch circuit pipe minimum (being easy to cleaning).
To prevent sample air humidity degree from exceeding the dirty effect of condensate aggravation of dew point generation and causing monitoring instrument operation bad,
Also it is specifically designed a kind of humidity observing and controlling function.To being connected to one section of outside winding thermo electric material before merogenesis superposing type multiple branch circuit pipe 1
The same pipeline of internal diameter, in the pipeline between merogenesis superposing type multiple branch circuit pipe 1 and large aperture differential pressure Venturi tube 3
Temperature-humidity sensor 10 is laid, house steward's control module controls thermo electric material according to the temperature-humidity sensor data by sampling
Appropriate sample gas heating is carried out, sample air humidity degree is less than its dew point, it is ensured that to dry without condensation.
So as to use Cleaning tool or small ultrasonic cleaner " merogenesis " clear cleaning merogenesis superposing type multiple branch circuit
Pipe, can ensure that sample gas meets demand of technical standard and accurate measurement sample air-flow by the time (with minimum pumping power power consumption)
Amount, can observing and controlling sample temperature degree, humidity prevent the depressed dew of sample.
Its operation principle is：The power that check valve aspiration pump 5 is provided, makes sample gas enter from air sampling mouthful 8, flows through extension
Pipeline 7, heating pipe 9, merogenesis superposing type multiple branch circuit pipe 1, large aperture differential pressure Venturi tube 3；Difference gauge 4 (transmitter) is detected
To the output of large aperture differential pressure Venturi tube 3 differential pressure and be converted to electric signal transmission to house steward's control module 6 of sampling；Sampling is total
Pipe control module 6 provides flow measuring data, controls aspiration pump by air monitering mission requirements, and connect temperature, humidity biography
Sensor 10 and heating pipe 9, there is provided sample temperature degree, humidity data and according to control of temperature and humidity appropriate heating sample gas, prevent sample
Depressed dew.
Wherein：
Merogenesis superposing type multiple branch circuit pipe 1：Material is polytetrafluoroethylene (PTFE)；The internal diameter of the pipeline of each section is 19mm, and length is
100mm；There is external screw thread at two ends, and the internal thread of precession connecting elements 2 can be with the sealing fastening docking of adjacent articulated conduit；Tracheae connects
Head connection diameter is that 6mm (or 1/4 inch) polyfluortetraethylene pipes convey sample gas to monitoring instrument；Outside the internal diameter of extension 7 and two ends
Screw thread is identical with each length of tubing.
Large aperture differential pressure Venturi tube 3：From commercially available normalization product, aperture about 4mm, correspondence sample throughput is about
The differential pressure of 10L/m is about 200Pa.
Difference gauge (transmitter) 4：From commercially available normalization product, range is 0~500Pa.
Check valve aspiration pump 5：From commercially available normalization product, no load discharge about 15L/m, power of motor about 10W are extending
Sample gas passed through the time still less than 10 seconds when the length of pipe 7 reaches 5m.
Heating pipe 9：Winding 100W 220V ribbon heaters.
Temperature-humidity sensor 10：Temperature range -40~60 degree Celsius, humidity 0~100%.
In sum, the merogenesis superposing type multiple branch circuit pipe of a kind of ambient air monitoring website described in the utility model embodiment
And the contactless accurate measure and control device of flow, large aperture differential pressure Venturi tube is connected by merogenesis superposing type multiple branch circuit pipe and is taken out
Air pump, has heating pipe before merogenesis superposing type multiple branch circuit pipe, on merogenesis superposing type multiple branch circuit pipe and large aperture differential pressure text mound
In Pipe installing temperature-humidity sensor between pipe；Can be kept completely separate between merogenesis superposing type each length of tubing of multiple branch circuit pipe, can be single
Solely scrub or cleaned with small ultrasonic wave purgative gas, joint number can change according to actually required sample qi leel fluxion；Each length of tubing middle part has
Gas-tpe fitting, each length of tubing internal diameter and length are tried one's best and take the minimum value of performed demand of technical standard, have energy per length of tubing two ends
Enough structures with the sealing fastening docking of adjacent articulated conduit；The differential pressure of large aperture differential pressure Venturi tube is transferred to difference gauge and (becomes
Send device) electric signal transmission is converted to house steward's control module of sampling；Sampling house steward's control module can provide flow measuring data, energy
Check valve aspiration pump is controlled by air monitering mission requirements, and connects temperature-humidity sensor and heating pipe, there is provided sample gas
Temperature, humidity data and according to control of temperature and humidity appropriate heating sample gas, prevent the depressed dew of sample；Check valve aspiration pump can overcome
Flow needed for sample gas gas-flow resistance fluctuation is provided meets performed demand of technical standard to ensure sample gas by the time.
The above is preferred embodiment of the present utility model, it is noted that for the ordinary skill of the art
For personnel, on the premise of the utility model principle is not departed from, some improvement and modification can also be made, these improve and repair
Decorations also should be regarded as protection domain of the present utility model.
Claims (7)
1. a kind of merogenesis superposing type multiple branch circuit pipe, it is characterised in that：The merogenesis superposing type multiple branch circuit pipe is by least 2-section pipe road
It is formed by stacking, there is a gas-tpe fitting in the middle part of each of which length of tubing, its air inlet extend into pipeline center；Each length of tubing
Two ends and the sealing fastening docking of adjacent each length of tubing.
2. merogenesis superposing type multiple branch circuit pipe according to claim 1, it is characterised in that：The air inlet of the gas-tpe fitting extends
To pipeline center, internal diameter of the pipeline is more than 15mm.
3. merogenesis superposing type multiple branch circuit pipe according to claim 2, it is characterised in that：The two ends of the pipeline are by connecting structure
Part and adjacent each length of tubing sealing fastening docking.
4. the merogenesis superposing type multiple branch circuit pipe according to any claim in claim 1-3, it is characterised in that：The merogenesis
The material of superposing type multiple branch circuit pipe is polytetrafluoroethylene (PTFE), and the internal diameter of the pipeline of each section is 19mm, and length is 100mm；There is outer spiral shell at two ends
Line, the internal thread of precession connecting elements and the sealing fastening docking of adjacent articulated conduit.
5. the merogenesis superposing type multiple branch circuit pipe according to any claim in claim 1-3, it is characterised in that：The tracheae
Joint connection diameter conveys sample gas for the polyfluortetraethylene pipe of 6mm to monitoring instrument.
6. a kind of accurate measure and control device of contactless flow, it is characterised in that：Including any one of as above claim 1-5
Merogenesis superposing type multiple branch circuit pipe, by merogenesis superposing type multiple branch circuit pipe connect large aperture differential pressure Venturi tube and aspiration pump,
Have heating pipe before merogenesis superposing type multiple branch circuit pipe, merogenesis superposing type multiple branch circuit pipe and large aperture differential pressure Venturi tube it
Between Pipe installing temperature-humidity sensor；Can be kept completely separate between merogenesis superposing type each length of tubing of multiple branch circuit pipe, in each length of tubing
There is gas-tpe fitting in portion, per length of tubing two ends with the sealing fastening docking of adjacent articulated conduit；The difference of large aperture differential pressure Venturi tube
Pressure is transferred to difference gauge and is converted to electric signal transmission to house steward's control module of sampling.
7. the accurate measure and control device of contactless flow according to claim 6, it is characterised in that：Sampling house steward's observing and controlling mould
Block can provide flow measuring data, control check valve aspiration pump by air monitering mission requirements, and connect temperature, humidity sensor
Device and heating pipe, there is provided sample temperature degree, humidity data and according to control of temperature and humidity appropriate heating sample gas；Check valve is evacuated
Pump overcomes sample gas gas-flow resistance fluctuation to provide required flow.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621496845.5U CN206311151U (en) | 2016-12-31 | 2016-12-31 | Merogenesis superposing type multiple branch circuit pipe and the accurate measure and control device of contactless flow |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621496845.5U CN206311151U (en) | 2016-12-31 | 2016-12-31 | Merogenesis superposing type multiple branch circuit pipe and the accurate measure and control device of contactless flow |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206311151U true CN206311151U (en) | 2017-07-07 |
Family
ID=59248261
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621496845.5U Active CN206311151U (en) | 2016-12-31 | 2016-12-31 | Merogenesis superposing type multiple branch circuit pipe and the accurate measure and control device of contactless flow |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206311151U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106595781A (en) * | 2016-12-31 | 2017-04-26 | 深圳壹点环境监测科技顾问有限公司 | Sectional overlapped type multi-branch pipe and non-contact type flow accurate monitoring device |
-
2016
- 2016-12-31 CN CN201621496845.5U patent/CN206311151U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106595781A (en) * | 2016-12-31 | 2017-04-26 | 深圳壹点环境监测科技顾问有限公司 | Sectional overlapped type multi-branch pipe and non-contact type flow accurate monitoring device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20201211 Address after: Unit 208, no.29-1, East Street, Haizhu District, Guangzhou City, Guangdong Province 510000 Patentee after: YIDIAN ENVIRONMENTAL TECHNOLOGY (GUANGZHOU) Co.,Ltd. Address before: Room 630, Shahe Golden Triangle building, Nanshan District, Shenzhen City, Guangdong Province Patentee before: SHENZHEN YIDIAN ENVIRONMENTAL MONITORING TECHNOLOGY CONSULTANTS Co.,Ltd. |
|
| TR01 | Transfer of patent right |