CN203037513U - Dust sampler - Google Patents
Dust sampler Download PDFInfo
- Publication number
- CN203037513U CN203037513U CN 201220645117 CN201220645117U CN203037513U CN 203037513 U CN203037513 U CN 203037513U CN 201220645117 CN201220645117 CN 201220645117 CN 201220645117 U CN201220645117 U CN 201220645117U CN 203037513 U CN203037513 U CN 203037513U
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- sampling
- pipe
- dust sampler
- base plate
- filter bag
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Abstract
The utility model discloses a dust sampler which comprises a sampling nozzle, a sampling tube, a filtering bag, a connecting tube and a ventilating skin tube, wherein the sampling tube is provided with a sampling cavity; the filtering bag is arranged in the sampling cavity; the connecting tube is arranged at one end of the sampling tube, used for connecting the sampling nozzle, and communicated with the sampling cavity; and the ventilating skin tube is arranged at the other end of the sampling tube, and communicated with the sampling cavity. The dust sampler is used for detecting dust with a high concentration of 0.5-2kg/m<3>, and is very well applicable to a semi-dry process flue gas desulphurization system.
Description
Technical field
The utility model relates to the smoke gas treatment technical field, is specifically related to a kind of dust sampler.
Background technology
Circulating fluid bed semi-drying method flue gas desulfurization (CFB-FGD) technology is the more superior a kind of semi-dry process flue gas desulphurization technology of present flue gas desulfurization comprehensive benefit, it is based on recirculating fluidized bed (CFB) principle, make absorbing agent repeatedly recycle in reactor, prolong the duration of contact of absorbing agent and flue gas, thereby improved the interest rate of absorbing agent greatly.
Circulating fluid bed semi-drying method flue gas desulfurization (CFB-FGD) technology not only has many advantages of general semi-dry desulfurizing process, simple as flow process, take up an area of less, investment is low and secondary product can fully utilize etc., and situation that can relatively low at calcium sulfur ratio (Ca/S=1.3～1.5) is issued to the desulfuration efficiency suitable with wet desulfurizing process, reaches more than 90%.
Smoke evacuation circulating fluidized bed desulfur device (CFB-FGD) cardinal principle is to contact with the slurries that contain lime or the formed solid suspension of solid particle to mix by flue gas to remove SO in the flue gas
2.Lime and SO
2After the reaction, the separated device of most solid particle separates from flue gas, and as SO
2Absorbing agent is recycled in the system, and the clean flue gas after the processing is sent to fly-ash separator, enters atmosphere then.
Dust concentration decision systems operation conditions has significance to the fault diagnosis in system's operational process in the desulphurization system absorption tower of CFB-FGD circulating fluid bed semi-drying method flue gas desulfurization.Improve in the research and development dust concentration test item that also is absolutely necessary that distributes in the tower in semidry process.The dust of circulating fluidized bed desulfur device inside enters inside, absorption tower by ship type ash bucket, and the dust concentration of inside, absorption tower is very high.
For example application number is that 201010279905.9 Chinese patent application discloses a kind of assembled smoke gas dust sampler, mainly formed by sampling cylinder, thief rod, gas outlet, pitot tube, temperature sensor and variable valve, filter cylinder is housed in the sampling cylinder, the sampling mouth is arranged on the end cap of sampling cylinder, and sampling cylinder is connected with gas outlet.The entrance of pitot tube is positioned at same surface level with sampling mouth entrance, and a side entrance of pitot tube is identical with sampling mouth Way in, and the fixed head that gas outlet, pitot tube and temperature sensor pass on the reinforcing sleeve passes from thief rod.
The filter cylinder volume of existing dust sampler is too little, can't satisfy the dust test request in the circulating fluid bed semi-drying method flue gas desulfurization (CFB-FGD).
The utility model content
The utility model provides a kind of dust sampler, is used for 0.5～2kg/m
3High concentrate dust detects, and well is applicable in the semi-dry process flue gas desulphurization system.
A kind of dust sampler, comprise the sampling mouth, have the sampling pipe of sampling cavity and be arranged on the interior filter bag of sampling cavity, also comprise and be arranged on the connecting pipe that described sampling pipe one end is used for the described sampling mouth of connection and is communicated with described sampling cavity, the ventilation leather hose that is arranged on the described sampling pipe other end and is communicated with described sampling cavity.
The utility model utilizes existing sampling mouth, between sampling mouth and sampling pipe, connecting pipe is set, can change the volume of the sampling cavity of sampling pipe as required arbitrarily, increase the volume of sampling cavity, can guarantee that filter bag has enough volumes to hold dust in the test duration, be applicable to the flue gas that dust content is big, in the semi-dry process flue gas desulphurization system.
During use, connecting pipe is connected with original sampling mouth, the ventilation leather hose links to each other with vacuum-pumping equipment, under the effect of vacuum suction, flue gas is by in the filter bag of sampling mouth in connecting pipe enters the sampling cavity, and flue gas filters by leather hose through filter bag to be got rid of, and dust in flue gas is trapped in the filter bag.
As preferably, described sampling pipe one end is provided with base plate, the other end is provided with end cap, and described base plate seals into described sampling cavity with end cap, and described connecting pipe is installed on the described end cap, and described ventilation leather hose is installed on the described base plate.
As preferably, described filter bag one end sealing and with described base plate near, the other end of filter bag is open and be close to the sampling cavity inner wall and fix, described connecting pipe runs through end cap and extends in the open end of filter bag.
Filter bag is fixed in the described sampling cavity, and connecting pipe runs through end cap and extends in the open end of filter bag, and forced gas is passed through in filter bag, and filter bag shrinks in the time of also can preventing from bleeding simultaneously, causes gas not enter in the filter bag fully.
As preferably, be threaded engagement between described end cap and the sampling pipe.
More preferably, the end outer wall of described sampling pipe is provided with external thread, and described end cap is provided with the internal thread that matches with described external thread.
End cap adopts dismountable mode to be connected before with sampling pipe, makes things convenient for assembling and the maintenance of sampling thief.
As preferably, the end that described sampling pipe arranges base plate is provided with the contraction pipeline section that internal diameter reduces gradually, and the afterbody of described contraction pipeline section is provided with connecting thread.
This shrinks pipeline section and is used for external stay pipe, to prolong the length of sampling pipe, is applied in the bigger desulfurizer desulphurization system.
As preferably, the junction of the junction of described connecting pipe and end cap and described base plate and sampling pipe is equipped with moulds a layer sealing ring.
Mould a layer sealing ring in the setting of the junction of connecting pipe and end cap, to guarantee the sealing effectiveness of connecting pipe and end cap junction; Mould layer sealing in the setting of the junction of base plate and sampling pipe and change, to guarantee that base plate is in the sealing effectiveness of the junction of sampling pipe; The sealing of guaranteeing whole sampling cavity is changed in the layer sealing of moulding at two places.
As preferably, the external diameter of described sampling cavity is 70～75mm, and volume is 1～1.5L.
The built-in filter bag of sampling cavity is collected dust in flue gas by this filter bag, and volume is 1～1.5L, guarantees that filter bag has enough volumes to hold dust in the test duration, can be applicable to 0.5～2kg/m
3High concentrate dust detects, and is applicable in the semi-dry process flue gas desulphurization system.
As preferably, the caliber of described connecting pipe is 30～35mm, and length is 65～75mm.
The caliber of described connecting pipe is to adapt to existing sampling mouth, and the end that described connecting pipe stretches in the sampling cavity is stretched in the described filter bag, and flue gas is forced not allow it slip away between the slit by the filter bag in the sampling cavity, has guaranteed the precision of dust test.
As preferably, the described connecting pipe termination portion of an end outwardly is provided with external thread.
During use, both convenient and swift by being threaded by the external sampling mouth of the external thread on the connecting pipe, can guarantee intensity and the sealing effectiveness of junction again.
The beneficial effects of the utility model:
Existing dust sampling meter adopts traditional filter cylinder sampling, has the little characteristics that can not satisfy the high concentrate dust sampling of volume, and can't be applied in the CFB-FGD system.And the volume of the sampling cavity of the utility model sampling thief can be set to 1～1.5L, guarantees that filter bag has enough volumes to hold dust in the test duration, and better application is under the high concentrate dust environment.
Flue gas in the desulfurizer enters sampling thief inside by the sampling mouth, because the connecting pipe lower end is long, extends in the filter bag open end, flue gas can be forced not allow it slip away between the slit by the filter bag in the sampling cavity, has guaranteed the precision of dust test.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the enlarged diagram of A part shown in Figure 1.
Fig. 3 is the enlarged diagram of B part shown in Figure 1.
Fig. 4 is that C shown in Figure 3 is to view.
Reference numeral is as follows shown in the figure:
1-sampling pipe 2-sampling cavity 3-shrinks pipeline section
4-connecting pipe 5-end cap 6-connecting thread
7-ventilation leather hose 8-base plate.
Embodiment
As Fig. 1～shown in Figure 4, a kind of dust sampler comprises sampling mouth (not shown) and sampling pipe 1.
The sampling mouth adopts existing sampling mouth, in the present embodiment, sampling pipe 1 is the tube structure of 70mm for external diameter, in base plate 8 sealings of an end of this sampling pipe 1, the other end seals with end cap 5, base plate 8 becomes sampling cavity 2 with end cap 5 with sampling pipe 1 inner sealing, in this sampling cavity 4 the filter bag (not shown) is set, and filter bag is close to the inwall setting of the cavity 2 of sampling, one end seals and is close to base plate 8, the other end is opened and is fixed near end cap 5 places, and in the present embodiment, the volume of filter bag is 1L.
Base plate 8 is positioned at sampling pipe 1 inside, and the junction is provided with moulds a layer sealing ring, and end cap 5 is buckled in the end of sampling pipe 1 by being threaded, and the outer peripheral face of sampling pipe 1 end arranges external thread, and the inner peripheral surface of end cap 5 arranges internal thread.
At end cap 5 connecting pipe 4 is installed, mould a layer sealing ring in end cap 5 and the junction setting of connecting pipe 4, in the present embodiment, connecting pipe 4 is that 34mm, length are the pipe structure of 70mm for external diameter, connecting pipe 4 runs through end cap 5 and stretches in the sampling cavity 4, and extend in the open end of filter bag, make flue gas force to pass through filter bag; The outer peripheral face of connecting pipe 4 an end end outwardly arranges external thread, and this external thread is used for connecting the sampling mouth.
End in 8 sealings of sampling pipe 1 usefulness base plate connects one section contraction pipeline section 3, this contraction pipeline section 3 can be outer a section of being connected on the sampling pipe 1, also can be that formation is inwardly shunk in sampling pipe 1 end, afterbody at this contraction pipeline section 3 arranges connecting thread 6, by the body of these connecting thread 6 external stay pipes with prolongation sampling pipe 1.
Ventilation leather hose 7 one ends run through base plate 8 and are installed on the base plate 8, be communicated with sampling cavity 4, the other end extends outside the contraction pipeline section 3, the length of ventilation leather hose 7 can arrange as required, and overall length is to extend contraction pipeline section 3 and to be as the criterion by shrinking pipeline section 3 external stay pipes (during external stay pipe).
Using method of the present utility model is as follows:
Connecting pipe 4 is connected with the sampling mouth, ventilation leather hose 7 is connected with vacuum-pumping equipment, the sampling mouth stretches in the flue gas of band detection, vacuum suction, flue gas enters sampling thief cavity 2 by connecting pipe 4, and it is that the filter bag of 1L is used for filtering the dust that flue gas contains that volume is equipped with in its inside, and the clean flue gas that does not contain dust is taken away by ventilation leather hose 7, in filter bag, stay dust in flue gas, be used for measuring the dust in flue gas amount.
Connecting pipe 4 lower ends are long, extend in the open end of filter bag, flue gas can be forced not allow it slip away between the slit by the filter bag in the sampling cavity 2, guaranteed the precision of dust test.
When needs prolong the body of sampling pipe 1, by shrinking connecting thread 6 external one section stay pipe of pipeline section 3, need to prolong the length of ventilation leather hose 7 this moment, extend outside the stay pipe to guarantee ventilation leather hose 7.
The dust sampler of present embodiment can once be received the gas of handling about 10min, 200L, and the size of sampling pipe 1 can be improved as required voluntarily.
The above only is preferable implementation example of the present utility model, is not limited to the utility model, and is all within the utility model spirit and principle, any modification of doing, is equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.
Claims (9)
1. dust sampler, comprise the sampling mouth, have the sampling pipe of sampling cavity and be arranged on the interior filter bag of sampling cavity, it is characterized in that, also comprise and be arranged on the connecting pipe that described sampling pipe one end is used for the described sampling mouth of connection and is communicated with described sampling cavity, the ventilation leather hose that is arranged on the described sampling pipe other end and is communicated with described sampling cavity.
2. dust sampler according to claim 1, it is characterized in that described sampling pipe one end is provided with base plate, the other end is provided with end cap, described base plate seals into described sampling cavity with end cap, described connecting pipe is installed on the described end cap, and described ventilation leather hose is installed on the described base plate.
3. dust sampler according to claim 2 is characterized in that, the sealing of described filter bag one end and with described base plate near, the other end of filter bag is open and be close to the sampling cavity inner wall and fix, described connecting pipe runs through end cap and extends in the open end of filter bag.
4. dust sampler according to claim 2 is characterized in that, is threaded engagement between described end cap and the sampling pipe.
5. dust sampler according to claim 2 is characterized in that, the end that described sampling pipe arranges base plate is provided with the contraction pipeline section that internal diameter reduces gradually, and the afterbody of described contraction pipeline section is provided with connecting thread.
6. dust sampler according to claim 2 is characterized in that, the junction of the junction of described connecting pipe and end cap and described base plate and sampling pipe is equipped with moulds a layer sealing ring.
7. according to the described dust sampler of the arbitrary claim of claim 1～6, it is characterized in that the external diameter of described sampling cavity is 70～75mm, volume is 1～1.5L.
8. dust sampler according to claim 7 is characterized in that, the caliber of described connecting pipe is 30～35mm, and length is 65～75mm.
9. dust sampler according to claim 8 is characterized in that, the described connecting pipe termination portion of an end outwardly is provided with external thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220645117 CN203037513U (en) | 2012-11-28 | 2012-11-28 | Dust sampler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220645117 CN203037513U (en) | 2012-11-28 | 2012-11-28 | Dust sampler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203037513U true CN203037513U (en) | 2013-07-03 |
Family
ID=48689624
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220645117 Expired - Fee Related CN203037513U (en) | 2012-11-28 | 2012-11-28 | Dust sampler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203037513U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104764628A (en) * | 2015-03-21 | 2015-07-08 | 云升军 | Water sampler |
| CN106680169A (en) * | 2017-02-20 | 2017-05-17 | 常熟市顺欣仪器仪表有限公司 | Dust concentration measuring device |
| CN108007733A (en) * | 2017-12-22 | 2018-05-08 | 武汉洪兴伟业环境科技有限公司 | A kind of pollution sources malodor sampling system |
-
2012
- 2012-11-28 CN CN 201220645117 patent/CN203037513U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104764628A (en) * | 2015-03-21 | 2015-07-08 | 云升军 | Water sampler |
| CN106680169A (en) * | 2017-02-20 | 2017-05-17 | 常熟市顺欣仪器仪表有限公司 | Dust concentration measuring device |
| CN106680169B (en) * | 2017-02-20 | 2023-10-27 | 常熟市顺欣仪器仪表有限公司 | Dust concentration measuring device |
| CN108007733A (en) * | 2017-12-22 | 2018-05-08 | 武汉洪兴伟业环境科技有限公司 | A kind of pollution sources malodor sampling system |
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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: 20130703 Termination date: 20161128 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |