CN204783868U - Pneumatic sampling pump - Google Patents
Pneumatic sampling pump Download PDFInfo
- Publication number
- CN204783868U CN204783868U CN201520492836.8U CN201520492836U CN204783868U CN 204783868 U CN204783868 U CN 204783868U CN 201520492836 U CN201520492836 U CN 201520492836U CN 204783868 U CN204783868 U CN 204783868U
- Authority
- CN
- China
- Prior art keywords
- joint
- hand member
- left end
- inner chamber
- pump
- 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.)
- Withdrawn - After Issue
Links
Landscapes
- Sampling And Sample Adjustment (AREA)
Abstract
The utility model discloses a pneumatic sampling pump, including a pump body that has the inner chamber, the left end of the pump body is provided with first joint, the right -hand member is provided with the second and connects, first joint is the sample gas entry, the right -hand member of this first joint stretches into in the inner chamber of the pump body and the toper of its tip for the evagination, the left end that the second connects is arranged in the inner chamber and the back taper of its tip for the indent of the pump body, the right -hand member that the second connects exports as the sample gas gas mixture, the right -hand member and the second joint left end of first joint set up relatively, the clearance space of the two constitutes the toper negative pressuren zone, it connects still to be provided with instrument air inlet on pump body intracavity lateral wall, connecting, the second still be provided with the flow control structure on. Its effect is: the constant current characteristic has, when instrument air pressure when changing between 0.3-0.5MPa, sampling flow can remain unchanged, first joint and second connect along same axis and link up, can fine playing prevent the ponding, through adjusting the flow control structure, the sampling flow of pump can adjust according to needs.
Description
Technical field
The utility model relates to on-line gas analysis technical field, specifically, is a kind of Pneumatic sampling pump.
Background technique
Pneumatic sampling pump, it is the core component of negative pressure and micro positive pressure class sample gas processing system, be usually used in the sample gas processing system of on-line gas analysis, traditional design is that instrument air entrance and the outlet of sample gas are through along same axis, and sample gas inlet is in the sidewall locations of pump housing inner chamber, so, in sample gas, dust and pollutant easily produce crystallization, cause sampling pump line clogging, and the flow of existing Pneumatic sampling pump is unadjustable, easily cause Pneumatic sampling pump excess load, thus increase maintenance.
Model utility content
For the deficiencies in the prior art, the purpose of this utility model is to provide a kind of Pneumatic sampling pump, by changing instrument air entry position, sets up flow adjusting structure, solves the technical barriers such as sampling pump easily blocks, flow is unadjustable, applicating maintenance amount is large.
For achieving the above object, the concrete technological scheme that the utility model adopts is as follows:
A kind of Pneumatic sampling pump, comprise one with the pump housing of inner chamber, the left end of the described pump housing is provided with the first joint, right-hand member is provided with the second joint, described first joint is sample gas inlet, it is the taper of evagination that the right-hand member of this first joint extend in the inner chamber of the pump housing and its end, the left end of described second joint is arranged in the inner chamber of the pump housing and its end is the inverted cone of indent, the right-hand member of the second joint is as sample gas mixed gas outlet, right-hand member and the second joint left end of described first joint are oppositely arranged, the clearance space of the two forms taper negative pressuren zone, described pump housing intracavity sidewall is also provided with instrument air inlet attack, described second joint is also provided with flow adjusting structure.
Further describe, described first joint and described second joint through along same axis.
Further describe, described instrument air inlet attack is arranged near the first joint direction again.
Further describe, described second joint is connected on the pump housing by fine thread again, the second joint can be made to move left and right by adjust flux regulation structure, regulates as required for realizing sampling flow.
Be described further, described sampling pump has constant-current characteristics again, and when instrument air pressure changes between 0.3 ~ 0.5MPa, sampling flow can remain unchanged.
The beneficial effects of the utility model are: by changing instrument air entry position, increasing flow adjusting structure, solving the technical barriers such as easy blocking, flow is unadjustable, maintenance is large.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
1. first joint, the 2. pump housings, 3. instrument air inlet attack, 4. taper negative pressuren zone, 5. the second joint, 6. flow adjusting structure in figure.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model and working principle are described in further detail.
As shown in Figure 1, a kind of Pneumatic sampling pump, comprise one with the pump housing 2 of inner chamber, the left end of the described pump housing 2 is provided with the first joint 1, right-hand member is provided with the second joint 5, described first joint 1 is as sample gas inlet, it is the taper of evagination that the right-hand member of this first joint 1 extend in the inner chamber of the pump housing 2 and its end, the left end of described second joint 5 is arranged in the inner chamber of the pump housing 2 and its end is the inverted cone of indent, the right-hand member of the second joint 5 is as sample gas mixed gas outlet, right-hand member and second joint 5 left end of described first joint 1 are oppositely arranged, the clearance space of the two forms taper negative pressuren zone 4, the described pump housing 2 intracavity sidewall is also provided with instrument air inlet attack 3, described second joint 5 is also provided with flow adjusting structure 6.
The working principle of model utility is as follows:
Sample gas enters from the first joint 1 sample gas inlet, instrument air enters from its instrument air inlet attack 3, negative pressure is formed in taper negative pressuren zone 4, the mixed airflow of sample gas formation high speed is swept along to discharge from mixed gas exhaust outlet joint 6, and aperture is larger, such setting effectively prevent dust and pollutant generation crystallization in sample gas thus results in blockage, and improves reliability.
By adjust flux regulation structure 6, the second joint 5 can be made to move left and right, thus change the tapered gaps of taper negative pressuren zone 4, change negative pressure thereupon, thus rate of air sucked in required is controlled between 1L/min to 4L/min, be applicable to various small flow sample gas processing system, alleviate the load of sample gas disposal, meet maintenance requirement.
Claims (4)
1. a Pneumatic sampling pump, comprise one with the pump housing (2) of inner chamber, it is characterized in that: the left end of the described pump housing (2) is provided with the first joint (1), right-hand member is provided with the second joint (5), the left end of described first joint (1) is as sample gas inlet, it is the taper of evagination that the right-hand member of this first joint (1) extend in the inner chamber of the pump housing (2) and its end, the left end of described second joint (5) is arranged in the inner chamber of the pump housing (2) and its end is the inverted cone of indent, the right-hand member of the second joint (5) is as sample gas mixed gas outlet, right-hand member and the second joint (5) left end of described first joint (1) are oppositely arranged, the clearance space of the two forms taper negative pressuren zone (4), the described pump housing (2) intracavity sidewall is also provided with instrument air inlet attack (3), described second joint (5) is also provided with flow adjusting structure (6).
2. a kind of Pneumatic sampling pump according to claim 1, is characterized in that: described first joint (1) is through along same axis with described second joint (5).
3. a kind of Pneumatic sampling pump according to claim 1, is characterized in that: described instrument air inlet attack (3) is arranged on the direction near the first joint (1).
4. a kind of Pneumatic sampling pump according to claim 1, it is characterized in that: described second joint (5) is connected on the pump housing (2) by fine thread, the second joint (5) can being made to move left and right by adjust flux regulation structure (6), regulating as required for realizing sampling flow.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520492836.8U CN204783868U (en) | 2015-07-09 | 2015-07-09 | Pneumatic sampling pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520492836.8U CN204783868U (en) | 2015-07-09 | 2015-07-09 | Pneumatic sampling pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204783868U true CN204783868U (en) | 2015-11-18 |
Family
ID=54523924
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520492836.8U Withdrawn - After Issue CN204783868U (en) | 2015-07-09 | 2015-07-09 | Pneumatic sampling pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204783868U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104976164A (en) * | 2015-07-09 | 2015-10-14 | 重庆凌卡分析仪器有限公司 | Anti-blocking pneumatic sampling pump |
-
2015
- 2015-07-09 CN CN201520492836.8U patent/CN204783868U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104976164A (en) * | 2015-07-09 | 2015-10-14 | 重庆凌卡分析仪器有限公司 | Anti-blocking pneumatic sampling pump |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204990045U (en) | Fluid flow pressure control device | |
| CN203630649U (en) | Gas flow or pressure adjustment device | |
| CN204783868U (en) | Pneumatic sampling pump | |
| CN101974860B (en) | Method for medium-consistency refining and pumping | |
| CN203454758U (en) | Gas assisted sintering test system | |
| CN104976164A (en) | Anti-blocking pneumatic sampling pump | |
| CN205182986U (en) | Atomizing spraying nozzle | |
| CN204477392U (en) | Watering regulator | |
| CN203488787U (en) | Flow control device of oxygen generator | |
| CN201843017U (en) | Middle-concentration pulping and pumping device | |
| CN204591336U (en) | A kind of mining device for reducing dust based on convergent-divergent channel | |
| CN203098176U (en) | Novel metering pump | |
| CN204254277U (en) | A kind of timesharing reduction valve | |
| CN203068983U (en) | Air-swept distributing box | |
| CN205904575U (en) | Laser cutting air intake control device | |
| CN206253255U (en) | A kind of atomizer | |
| CN201964402U (en) | Cement produced with the dry method kiln predecomposition burner nozzle that has the blunt body of spiral | |
| CN203329877U (en) | Adjustable water spray dispersion device | |
| CN204402940U (en) | A kind of high-temperature resistant axial-flow fan | |
| CN205413318U (en) | On -line control arranges raymond mill of material | |
| CN204338020U (en) | Impacting type ammonia jet mixer | |
| CN203130590U (en) | Air distribution device for slurry pump | |
| CN208499770U (en) | Solid material conveying anti-blocking new equipment | |
| CN210600352U (en) | Gas proportional valve | |
| CN204973278U (en) | Special distributor that filters of high stability valve station |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20151118 Effective date of abandoning: 20171114 |
|
| AV01 | Patent right actively abandoned |