CN200986501Y - Portable gas vacuum sampling instrument capable of switching flow direction - Google Patents
Portable gas vacuum sampling instrument capable of switching flow direction Download PDFInfo
- Publication number
- CN200986501Y CN200986501Y CN 200620049185 CN200620049185U CN200986501Y CN 200986501 Y CN200986501 Y CN 200986501Y CN 200620049185 CN200620049185 CN 200620049185 CN 200620049185 U CN200620049185 U CN 200620049185U CN 200986501 Y CN200986501 Y CN 200986501Y
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- vacuum
- valve
- flow direction
- changeable flow
- vacuum pump
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Abstract
The utility model relates to a detection instrument, and discloses a portable vacuum gas sampler with the changeable flow direction. The sampler includes a sampling part comprising a vacuum box and a seal cover and a power part comprising a vacuum pump. The driving motor of the vacuum pump is a DC motor. The power part is provided with a battery unit supplying DC current. The seal cover is provided with a left and a right air inlet and outlet pipe with one end separately communicated with the vacuum box, and the other end of the left and right air inlet and outlet pipe is provided with a gas reversing valve. The reversing valve is provided with a coupling connected with the pipe to the vacuum pump and the detection site. The utility model solves the technical problem of that cleaning of the gas bag and collecting of the to-be-detected gas can not be easily and conveniently carried out if the coupling is not dismounted and replaced.
Description
Technical field:
The utility model is about the instrument that detects, particularly about gathering the vacuum plant of sample gas under study.
Background technology:
For the air quality of supervision urban environment, need gather sampling to the air of check point.A vacuum tank 1 is as shown in Figure 1 all used in present gas collecting sampling, and this vacuum tank 1 is a transparent or semitransparent container, and its top is provided with a dismountable gland bonnet 2, has two pipe adapter A, B on the sealing lid 2.During use, will be connected with the part that pipe adapter A or B are positioned at gland bonnet 2 bottoms by the snorkel 41 of the bladder tank 4 of tetrafluoroethene system, and the variable valve 5 that will be sandwiched on the snorkel 41 open, cover gland bonnet 2 again, bladder tank 4 is placed in the vacuum tank 1.To expose to the pipe adapter A on gland bonnet 2 tops with pipeline respectively again or B is corresponding is communicated with vacuum pump and tested scene.Open vacuum pump the extraction of the air in the vacuum tank 1 is caused negative pressure, then the gas to be measured at tested scene promptly sucks in the bladder tank 4; The opening encapsulation lid 2 then, close the variable valve 5 on the airbag snorkel 41, take off bladder tank 4 and can finish sampling.But the gas sampling standard code should be earlier to the tested purge of gas several times of bladder tank 4 usefulness before the sampling.For this reason, need will connect the pipeline of vacuum pump and connect the pipeline at tested scene and pipe adapter A on the gland bonnet 2 and the alternately change for several times of the do of the annexation between the B, be that vacuum pump vacuumizes with vacuum tank 1 connection by pipe adapter A (or B) earlier, the pipeline that connect tested scene this moment charges into tested gas by the bladder tank 4 of pipe adapter B (or A) in vacuum tank 1; The pipeline that will be communicated with vacuum pump again unloads and is connected with pipe adapter B (or A) from pipe adapter A (or B) tested gas the bladder tank 4 is extracted out, pipe adapter B this moment (or A) joins with the pipeline that is connected tested scene tested gas is sucked vacuum tank 1, perhaps this joint B directly communicates with atmosphere atmosphere is sucked in the vacuum tank 1, till 4 bags of walls self of bladder tank are fitted, so just finished cleaning process one time.Repeat the said process several times, just finished whole cleaning, can enter formal tested gas collecting.As seen, existing gas vacuum harvester is for the preceding preparatory stage of sampling--and clean not only complicated operation of bladder tank, need constantly unload pipe, tubulature, and also time-consuming, very inconvenient.
In addition, more inconvenient is that existing vacuum pump all uses alternating current, obtains AC power for making vacuum pump, need carry the cable of sufficient length, causes the too huge heaviness of equipment, moves very difficult.If measure field is far away from AC power, this inconvenience is just more outstanding.
The utility model content:
The utility model provides a kind of portable gas vacuum sampling instrument of the changeable flow direction, and solution need not dismantle and exchange pipe joint and can finish the cleaning and the tested gas collecting of bladder tank easily, easily and get rid of the portable technical matters of cable self-powered source weight reduction.
The technical scheme that the utility model solves the problems of the technologies described above is:
A kind of portable gas vacuum sampling instrument of the changeable flow direction divides the power section that comprises the sampling section of vacuum tank, gland bonnet and comprise vacuum pump, and it is characterized in that: the drive motor of this vacuum pump is a direct current generator; This power section is provided with the galvanic battery pack of supply; Sealing covers and is provided with the left and right turnover tracheae that an end is communicated with vacuum tank respectively, and the other end of this left and right turnover tracheae is provided with gas commutating valve, and this reversal valve has and leads to the pipe adapter that vacuum pump links to each other with tested on-the-spot pipeline.
It is characterized in that: this reversal valve is the four-way change-over valve with two pipe adapters.
It is characterized in that: this left and right turnover tracheae is respectively arranged with left and right arm, and this left and right arm one end links another reversal valve jointly, and this two reversal valve is the T-valve with a pipe adapter.
It is characterized in that: reversal valve is hand-operated direction valve or solenoid directional control valve.
It is characterized in that: this vacuum tank is provided with the pressure transducer of band display device.
It is characterized in that: this left and right turnover tracheae is provided with variable valve.
The utlity model has following beneficial effect:
1. the vacuum pump that adopts direct current generator to drive by storage battery power supply, has been got rid of heavy cable, can finish the collecting work of gas sample in the place of unregulated power supply.
2. volume is little, and is in light weight, is easy to carry.
3. power section is with after sampling section is connected with pipe, if light rotary reversing valve handle or with solenoid directional control valve directly control just can finish the cleaning and the gas sampling of bladder tank.
Description of drawings:
Fig. 1 is existing gas vacuum harvester structural representation.
Fig. 2 is the utility model power section schematic appearance.
Fig. 3 is a kind of structural representation of the utility model collecting part.
Fig. 4 is a structure four-way change-over valve off-position synoptic diagram shown in Figure 3.
Fig. 5 is another open position synoptic diagram of structure four-way change-over valve shown in Figure 3.
Fig. 6 is the another kind of structural representation of the utility model collecting part.
Embodiment:
See also Fig. 2 and shown in Figure 3, the utility model is made up of power section I that comprises vacuum pump and the collecting part II that comprises vacuum tank 1 and gland bonnet 2.
The vacuum pump (not shown) of this power section I (see figure 2) is arranged in the casing 16, this vacuum pump is the miniwatt vacuum pump that is driven by direct current generator, also be provided with the galvanic battery pack (not shown) of supply in this casing 16, the panel 161 of casing 16 is provided with sampling charging option switch 18, manual automatic selector switch 20, voltage table 22, reometer 21 and vacuum meter 23.When the charging option switch of wherein sampling 18 was in charge position, battery pack was cut off and to be connected with the circuit of vacuum pump, was connected with charging plug and pass through reometer 21, be convenient to by external dc power battery charging, and demonstration charging current size; When this sampling charging option switch 18 is in the sampling location, connect the path of battery pack and vacuum pump, 22 voltages that show this path of voltage table.Manually automatic selector switch 20 is serially connected in above-mentioned battery pack and the cathode circuit that vacuum pump links to each other, and when being in manual position, vacuum pump direct current generator positive and negative electrode binding post links to each other with the positive and negative electrode post of electric power storage group respectively; When being in automated location, be serially connected with the digital time controller 25 that is installed on the panel 161 in the above-mentioned cathode circuit, to operate the button 252 of this numeral time controller 25 and can set the vacuum pump working time, display device 251 shows the real-time time of this setting-up time and operation; When real-time time arrival setting-up time, digital time controller 25 cuts off above-mentioned cathode circuit voluntarily.Also be provided with flowmeter 17 on the panel 161, can adjust and show the flow of vacuum pump.The draft tube joint 26 of vacuum pump is arranged on the casing 16, is connected with the pipe adapter 6 of sampling section II by these draft tube joint 26 usefulness pipelines.Casing 16 end faces are provided with handle 24, are easy to carry.The air intake opening of vacuum pump is provided with the Sponge filtrator simultaneously, and the gas outlet is provided with sound suppressor.
This collecting part II (see figure 3) has sealing strip 3 between the tank wall of gland bonnet 2 and vacuum tank 1 upper edge, sealing bar 3 is made by silicon rubber usually.Sealing lid 2 is provided with an end and passes in and out tracheae 8 and right turnover tracheae 9 with vacuum tank 1 an interior left side that is communicated with respectively, the other end of this left side turnover tracheae 8 and right turnover tracheae 9 is common to join with a reversal valve 7, and this reversal valve 7 is a four-way change-over valve, it is provided with four interface a, b, c and d, wherein interface a is connected with the other end of left side turnover tracheae 8, interface c then is connected with the other end of right side turnover tracheae 9, and interface b is connected a pipe adapter 6,6 ' respectively with interface d.The rotary spool 72 of reversal valve 7 has two obstructed each other crooked ducts, and when spool 72 was in position shown in Figure 3, this two crooked duct was communicated with interface a and interface b respectively; Interface c is communicated with interface d.If being positioned at the bladder tank 4 of vacuum tank 1 this moment is connected with an end of right turnover tracheae 9, the pipe adapter 6 that is positioned at interface b place joins by the draft tube joint 26 of pipeline and power section I, thereby communicate with vacuum pump, the pipe adapter 6 ' that is positioned at interface d place joins with the pipeline that leads to tested on-the-spot tested point, during vacuum pump work, then produce vacuum in the vacuum tank 1, the gas to be measured of tested on-the-spot tested point enters bladder tank and inflates.This reversal valve 7 can be four-way electromagnetic reversing valve.
When rotary handle 71 made 45 ° of spool 72 rotations as shown in Figure 4, two crooked ducts in the spool 72 did not all communicate with interface a, b, c, d, are positioned at the valve closing position, and vacuum tightness in the vacuum tank 1 and bladder tank 4 all keep closing preceding state.When handle 71 continues 45 ° of rotations as shown in Figure 5 the time, 72 of spools with interface c and interface b be communicated with, interface a and interface d be communicated with, then tested gas flows in the vacuum tank 1, the tested gas in the bladder tank 4 is by the vacuum pump sucking-off.So, just finished the cleaning of a bladder tank 4.As seen as long as with handle 71 reciprocal forward and reverse half-twists or rotate several weeks (can finish 4 cleaning weekly) continuously, can easily finish the preliminary work of cleaning bladder tank 4 before gathering, and the collection of gas to be measured is taken a sample.After having taken a sample, reversal valve 7 is in off-position shown in Figure 4, open gland bonnet 2, close the variable valve 5 on bladder tank 4 snorkels 41 after, can will fill the bladder tank 4 of tested gas take out censorship.Can be provided with the variable valve 12 of regulating the air-flow size by left and right turnover tracheae 8,9.
See also shown in Figure 6, the utility model can also be realized like this, the other end of this left and right turnover tracheae 8,9 is except that connecting reversal valve 7 ', this left side turnover tracheae 8 has left arm 10, this right side turnover tracheae has right arm 11, these left and right arm 10,11 1 ends are connected with another reversal valve 7 ' jointly, and this two reversal valve 7 ' is a three-way diverter valve, and each reversal valve 7 ' has a pipe adapter 6 or 6 ' that links to each other with extraneous (being vacuum pump or tested scene).This two reversal valve 7 ' is a T-valve, can be the three-way solenoid valve shown in manual three-way valve or the figure.Other vacuum tank 1, gland bonnet 2, sealing strip 3 are identical with previous embodiment.When a reversal valve 7 ' is communicated with vacuum pump with vacuum tank 1, another reversal valve 7 ' is then with the connection of the bladder tank in the vacuum tank 14 with tested scene, so alternately exchange the connection status at two reversal valves 7 ' and vacuum pump and tested scene, can finish and clean and gather sampling.Can be provided with variable valve 12 at left and right turnover tracheae 8,9 nearly gland bonnets 2 places equally.
Be convenient vacuum tightness of observing in the vacuum tank 1, vacuum tank 1 is provided with the pressure transducer 13 of band display device.These pressure transducer 13 signal cables link to each other with the vacuum pump direct current generator of power section I, when vacuum tightness in the vacuum tank 1 surpasses setting, cut off motor circuit, the explosion to prevent bladder tank 4 overexpansions.
Claims (10)
1, a kind of portable gas vacuum sampling instrument of the changeable flow direction divides the power section that comprises the sampling section of vacuum tank, gland bonnet and comprise vacuum pump, and it is characterized in that: the drive motor of this vacuum pump is a direct current generator; This power section is provided with the galvanic battery pack of supply; Sealing covers and is provided with the left and right turnover tracheae that an end is communicated with vacuum tank respectively, and the other end of this left and right turnover tracheae is provided with gas commutating valve, and this reversal valve has and leads to the pipe adapter that vacuum pump links to each other with tested on-the-spot pipeline.
2, the vacuum gas harvester of the changeable flow direction according to claim 1 is characterized in that: this reversal valve is the four-way change-over valve with two pipe adapters.
3, the vacuum gas harvester of the changeable flow direction according to claim 1, it is characterized in that: this left and right turnover tracheae is respectively arranged with left and right arm, this left and right arm one end links another reversal valve jointly, and this two reversal valve is the T-valve with a pipe adapter.
4, according to the vacuum gas harvester of claim 1, the 2 or 3 described changeable flow directions, it is characterized in that: reversal valve is hand-operated direction valve or solenoid directional control valve.
5, according to the vacuum gas harvester of claim 1, the 2 or 3 described changeable flow directions, it is characterized in that: this vacuum tank is provided with the pressure transducer of band display device.
6, the vacuum gas harvester of the changeable flow direction according to claim 4 is characterized in that: this vacuum tank is provided with the pressure transducer of band display device.
7, according to the vacuum gas harvester of claim 1, the 2 or 3 described changeable flow directions, it is characterized in that: this left and right turnover tracheae is provided with variable valve.
8, the vacuum gas harvester of the changeable flow direction according to claim 4 is characterized in that: this left and right turnover tracheae is provided with variable valve.
9, the vacuum gas harvester of the changeable flow direction according to claim 5 is characterized in that: this left and right turnover tracheae is provided with variable valve.
10, the vacuum gas harvester of the changeable flow direction according to claim 6 is characterized in that: this left and right turnover tracheae is provided with variable valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620049185 CN200986501Y (en) | 2006-12-19 | 2006-12-19 | Portable gas vacuum sampling instrument capable of switching flow direction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620049185 CN200986501Y (en) | 2006-12-19 | 2006-12-19 | Portable gas vacuum sampling instrument capable of switching flow direction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200986501Y true CN200986501Y (en) | 2007-12-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620049185 Expired - Fee Related CN200986501Y (en) | 2006-12-19 | 2006-12-19 | Portable gas vacuum sampling instrument capable of switching flow direction |
Country Status (1)
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| CN (1) | CN200986501Y (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104535376A (en) * | 2014-12-04 | 2015-04-22 | 苏州国环环境检测有限公司 | Gas collecting device |
| CN104568522A (en) * | 2014-12-04 | 2015-04-29 | 苏州国环环境检测有限公司 | Portable gas collection device |
| CN104764632A (en) * | 2015-04-22 | 2015-07-08 | 苏州聚阳环保科技股份有限公司 | Non-contact type full-automatic gas sample retention device |
| CN105181392A (en) * | 2015-08-17 | 2015-12-23 | 石家庄国祥运输设备有限公司 | Sampling tool and sampling method for refrigerant used for air conditioning unit |
| CN105424840A (en) * | 2015-12-28 | 2016-03-23 | 周俊杰 | On-line continuous environmental air quality automatic monitoring system and peculiar smell source tracing method |
| CN105784435A (en) * | 2016-04-28 | 2016-07-20 | 山东省产品质量检验研究院 | Full-automatic charging type negative air collector |
| CN105954071A (en) * | 2016-06-03 | 2016-09-21 | 中国人民解放军装备学院 | Miniaturized sample collecting device used for gas sampling |
| CN106153408A (en) * | 2016-08-30 | 2016-11-23 | 宜昌市得心实用气体有限公司 | Oxygen purity on-line detecting system |
| CN104344978B (en) * | 2014-11-11 | 2017-12-01 | 浙江诚德检测研究有限公司 | A kind of environmental monitoring sample collecting device |
| CN112066367A (en) * | 2020-09-17 | 2020-12-11 | 童勇赛 | Automatic heat accumulation formula of switching-over and pressure release fires burning furnace |
-
2006
- 2006-12-19 CN CN 200620049185 patent/CN200986501Y/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104344978B (en) * | 2014-11-11 | 2017-12-01 | 浙江诚德检测研究有限公司 | A kind of environmental monitoring sample collecting device |
| CN104535376A (en) * | 2014-12-04 | 2015-04-22 | 苏州国环环境检测有限公司 | Gas collecting device |
| CN104568522A (en) * | 2014-12-04 | 2015-04-29 | 苏州国环环境检测有限公司 | Portable gas collection device |
| CN104568522B (en) * | 2014-12-04 | 2018-05-11 | 苏州国环环境检测有限公司 | Portable gas collection device |
| CN104764632A (en) * | 2015-04-22 | 2015-07-08 | 苏州聚阳环保科技股份有限公司 | Non-contact type full-automatic gas sample retention device |
| CN105181392A (en) * | 2015-08-17 | 2015-12-23 | 石家庄国祥运输设备有限公司 | Sampling tool and sampling method for refrigerant used for air conditioning unit |
| CN105424840A (en) * | 2015-12-28 | 2016-03-23 | 周俊杰 | On-line continuous environmental air quality automatic monitoring system and peculiar smell source tracing method |
| CN105784435A (en) * | 2016-04-28 | 2016-07-20 | 山东省产品质量检验研究院 | Full-automatic charging type negative air collector |
| CN105954071A (en) * | 2016-06-03 | 2016-09-21 | 中国人民解放军装备学院 | Miniaturized sample collecting device used for gas sampling |
| CN106153408A (en) * | 2016-08-30 | 2016-11-23 | 宜昌市得心实用气体有限公司 | Oxygen purity on-line detecting system |
| CN106153408B (en) * | 2016-08-30 | 2018-08-28 | 宜昌市得心实用气体有限公司 | Oxygen purity on-line detecting system |
| CN112066367A (en) * | 2020-09-17 | 2020-12-11 | 童勇赛 | Automatic heat accumulation formula of switching-over and pressure release fires burning furnace |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20071205 Termination date: 20111219 |