CN202453142U - Multi-point synchronous pressure measuring and sampling device - Google Patents
Multi-point synchronous pressure measuring and sampling device Download PDFInfo
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- CN202453142U CN202453142U CN2012200657537U CN201220065753U CN202453142U CN 202453142 U CN202453142 U CN 202453142U CN 2012200657537 U CN2012200657537 U CN 2012200657537U CN 201220065753 U CN201220065753 U CN 201220065753U CN 202453142 U CN202453142 U CN 202453142U
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Abstract
The utility model relates to a pressure measuring and sampling device for an air flow field, in particular to a multi-point synchronous pressure measuring and sampling device, which comprises an air isolating chamber formed by an airtight organic glass jar filled with water, wherein a plurality of small iron pipes for air extraction are inserted in the water in the air isolating chamber, and are connected with small iron pipes on the sealing plug I at one end of an air storing chamber through air extracting hoses. The inner diameter of the connecting hose of each small iron pipe of the air isolating chamber is larger than that of a sampling pipe, and the length of the connecting hose is greater than or equal to that of the sampling pipe, so that the short circuit of the sampling hose is caused because the air in the air storing chamber flows to one side of an air extracting pump when the air extracting quantity of a sampling pump is larger than the air inflow quantity of all sampling hoses. After the air extracting pump runs for a period of time, the stable negative pressure is formed in the air storing chamber, at this time, water in the air isolating chamber can prevent the air in the air extracting end from flowing back by stopping the air extracting pump, and the air in the sampling hose can flow into the air storing chamber because of negative pressure of the air storing chamber; after a period of time, the stable pressure and airflow can be realized. Therefore, multi-point synchronous pressure measurement and sampling is realized.
Description
Technical field
The utility model relates to a kind of pressure measurement, sampler of gas flowfield, is specifically related to synchronous pressure measurement of a kind of multiple spot and sampler, belongs to the checkout equipment technical field.
Background technology
Gas is as fluid; People have carried out a large amount of research to its balance and motion and rule, and along with progress of science and technology, people mainly study it through mathematical reasoning, experimental study, three kinds of methods of numerical evaluation; But because gas almost all exists in any space; The factor that impacts gas flow is very complicated, and mathematical reasoning and numerical evaluation are difficult to it is described accurately to a certain extent, to this; Experimental study becomes the main method of its balance of research and motion and rule, and pressure measurement is the main means of gas experiment research with sampling.At present; Known pressure measurement and sampling method and device just can carry out pressure measurement and sampling to the several points of only a few synchronously; When having the synchronous pressure measurement of a plurality of some needs and when sampling, a plurality of points can only carry out pressure measurement and sampling successively in order, cause a plurality of in pressure measurement and when taking a sample between the each point life period poor; Can't guarantee at one time a plurality of points to be carried out pressure measurement and sampling synchronously, bring bigger difficulty and error to experimental study.Therefore, method and the device of setting up a kind of synchronous pressure measurement and sampling are problem demanding prompt solutions.
Summary of the invention
The purpose of the utility model is for overcoming the weak point of above-mentioned prior art; Synchronous pressure measurement of a kind of multiple spot and sampler are provided, this device include one water is housed the trapping chamber that constitutes of airtight organic glass cylinder, a plurality of little iron pipes of bleeding insert in the water of trapping chamber; The described little iron pipe of bleeding is connected with little iron pipe on the air storage chamber one end sealing-plug I through the flexible pipe of bleeding; The internal diameter that the little iron pipe in trapping chamber connects flexible pipe is thicker than the sampling flexible pipe, and the former length is more than or equal to the latter, thereby when the rate of air sucked in required of sampling pump during greater than the air inflow of all flexible pipes of sampling; Air storage chamber gas causes the short circuit of sampling flexible pipe to aspiration pump one side flow.Aspiration pump is after operation a period of time, and air storage chamber forms stable negative pressure, at this moment; Stop aspiration pump, the water resistance of trapping chamber is only bled and is held air to flow backwards, and the gas in the sampling flexible pipe gets into air storage chamber owing to the air storage chamber negative pressure; Pressure and air-flow all reach stable after after a while; Thereby reach synchronous pressure measurement of multiple spot and sampling, effectively avoided the mistiming of multiple spot pressure measurement and sampling, improved the degree of accuracy of experimental study.
The utility model is realized through following technical scheme: synchronous pressure measurement of a kind of multiple spot and sampler; It is characterized in that: this device include one water is housed the trapping chamber that constitutes of airtight organic glass cylinder; A plurality of little iron pipes of bleeding insert in the water of trapping chamber, and the described little iron pipe of bleeding is connected with little iron pipe on the air storage chamber one end sealing-plug I through the flexible pipe of bleeding; Described sampling flexible pipe (10) is connected with little iron pipe I (5) through air storage chamber one end sealing-plug I; Described trapping has exhaust tube on the chamber; Iron pipe on the described air storage chamber other end sealing-plug II is connected with the sampling flexible pipe; The described stopple coupon other end is connected with syringe; Also be provided with tensimeter on the described air storage chamber.
Described exhaust tube, sebific duct is connected with aspiration pump through bleeding.
On the described sampling flexible pipe hose clamp I is arranged; Hose clamp II (17) is arranged on the described sampling flexible pipe.
Described air storage chamber two ends have sealing-plug I and sealing-plug II respectively.
The described inner diameter of bleeding is greater than or equals the inner diameter of sampling.
The beneficial effect of the utility model is; Open sampling pump; Because is connected the internal diameter of flexible pipe with the little iron pipe in trapping chamber thicker than the sampling flexible pipe, and the former length is more than or equal to the latter, thereby when the rate of air sucked in required of sampling pump during greater than the air inflow of all flexible pipes of sampling; Air storage chamber gas causes the short circuit of sampling flexible pipe to aspiration pump one side flow.Aspiration pump is after operation a period of time, and air storage chamber forms stable negative pressure, at this moment; Stop aspiration pump, the water resistance of trapping chamber is only bled and is held air to flow backwards, and the gas in the sampling flexible pipe gets into air storage chamber owing to the air storage chamber negative pressure; Pressure and air-flow all reach stable after after a while; Thereby reach synchronous pressure measurement of multiple spot and sampling, effectively avoided the mistiming of multiple spot pressure measurement and sampling, improved the degree of accuracy of experimental study.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the utility model is described further:
Fig. 1 is the pressure measurement and the sampling principle figure of the utility model;
Fig. 2 is the trapping cell structure figure of an embodiment;
Fig. 3 is the transverse cross-sectional view of Fig. 2;
Among the figure 1, the trapping chamber, 2, the little iron pipe of bleeding, 3, exhaust tube, 4, little iron pipe, 5, little iron pipe I; 6, iron pipe, 7, the sealing-plug I, 8, the sealing-plug II, 9, the sampling flexible pipe, 10, the sampling flexible pipe; 11, the flexible pipe of bleeding, 12, the sebific duct of bleeding, 13, aspiration pump, 14, air storage chamber; 15, tensimeter, 16, the hose clamp I, 17, the hose clamp II, 18, syringe.
Embodiment
As shown in the figure: synchronous pressure measurement of a kind of multiple spot and sampler; This device include one water is housed the trapping chamber 1 that constitutes of airtight organic glass cylinder; A plurality of little iron pipes 2 of bleeding insert in 1 water of trapping chambers, and the described little iron pipe of bleeding is connected with little iron pipe 4 on the air storage chamber 14 1 end sealing-plug I 7 through the flexible pipe 11 of bleeding; Described sampling flexible pipe 10 is connected with little iron pipe I 5 through air storage chamber one end sealing-plug I; Described trapping has exhaust tube 3 on the chamber; Iron pipe 6 on the described air storage chamber other end sealing-plug II 8 is connected with sampling flexible pipe 9; The described stopple coupon other end is connected with syringe 18; Also be provided with tensimeter 15 on the described air storage chamber 14.
Described exhaust tube 3, sebific duct 12 is connected with aspiration pump 13 through bleeding.
On the described sampling flexible pipe 9 hose clamp I 16 is arranged; On the described sampling flexible pipe 10 hose clamp II 17 is arranged.
Described air storage chamber 14 two ends have sealing-plug I 7 and sealing-plug II 8 respectively.
Described flexible pipe 11 internal diameters of bleeding are greater than or flexible pipe 10 internal diameters that equal to sample.
Workflow: open hose clamp II 17; Close hose clamp I 16; Open sampling pump 13; The observation whether bubbling of little iron pipe 2 lower ends of bleeding confirms whether pipeline is unimpeded, if bleed little iron pipe 2 lower end bubblings; Make 13 operation a period of times of aspiration pump; Observe the numerical value of all tensimeters 15, when all tensimeter numbers are stablized, note each manometric negative pressure value
.At this moment; Close aspiration pump 13; Because air storage chamber 14 negative pressure; Sampled point gas gets into air storage chamber 14 through sampling flexible pipe 10; Observe all tensimeter numerical value, when all tensimeter numerical stabilities, note each manometric numerical value
; Then draw the relative pressure value
of each sampling spot; Close all hose clamp II 17, open hose clamp I 16 successively, syringe is inserted on the sampling flexible pipe 9 take gas away.Otherwise, then should check the smoothness of pipeline, guarantee to operate by above-mentioned steps under the unimpeded situation of pipeline.
Claims (5)
1. synchronous pressure measurement of multiple spot and sampler; It is characterized in that: this device include one water is housed the trapping chamber (1) that constitutes of airtight organic glass cylinder; A plurality of little iron pipes (2) of bleeding insert in the water of trapping chamber (1), and the described little iron pipe of bleeding is connected with little iron pipe (4) on air storage chamber (14) the one end sealing-plug I (7) through the flexible pipe of bleeding (11); Described sampling flexible pipe (10) is connected with little iron pipe I (5) through air storage chamber one end sealing-plug I; Exhaust tube (3) is arranged on the described trapping chamber; Iron pipe (6) on the described air storage chamber other end sealing-plug II (8) is connected with sampling flexible pipe (9); The described stopple coupon other end is connected with syringe (18); Also be provided with tensimeter (15) on the described air storage chamber (14).
2. synchronous pressure measurement of a kind of multiple spot according to claim 1 and sampler is characterized in that: described exhaust tube (3) is connected with aspiration pump (13) through the sebific duct of bleeding (12).
3. synchronous pressure measurement of a kind of multiple spot according to claim 1 and sampler is characterized in that: hose clamp I (16) is arranged on the described sampling flexible pipe (9); Hose clamp II (17) is arranged on the described sampling flexible pipe (10).
4. synchronous pressure measurement of a kind of multiple spot according to claim 1 and sampler is characterized in that: described air storage chamber (14) two ends have sealing-plug I (7) and sealing-plug II (8) respectively.
5. synchronous pressure measurement of a kind of multiple spot according to claim 1 and sampler is characterized in that: the described flexible pipe of bleeding (11) internal diameter is greater than or flexible pipe (10) internal diameter that equals to sample.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200657537U CN202453142U (en) | 2012-02-27 | 2012-02-27 | Multi-point synchronous pressure measuring and sampling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200657537U CN202453142U (en) | 2012-02-27 | 2012-02-27 | Multi-point synchronous pressure measuring and sampling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202453142U true CN202453142U (en) | 2012-09-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200657537U Expired - Fee Related CN202453142U (en) | 2012-02-27 | 2012-02-27 | Multi-point synchronous pressure measuring and sampling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202453142U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102607764A (en) * | 2012-02-27 | 2012-07-25 | 徐州中矿安达矿山科技有限公司 | Multipoint synchronous pressure testing and sampling device |
| CN103852351A (en) * | 2014-03-25 | 2014-06-11 | 济钢集团有限公司 | Sampling device and sampling method for pumping gas sample in self-negative-pressure pipeline |
-
2012
- 2012-02-27 CN CN2012200657537U patent/CN202453142U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102607764A (en) * | 2012-02-27 | 2012-07-25 | 徐州中矿安达矿山科技有限公司 | Multipoint synchronous pressure testing and sampling device |
| CN103852351A (en) * | 2014-03-25 | 2014-06-11 | 济钢集团有限公司 | Sampling device and sampling method for pumping gas sample in self-negative-pressure pipeline |
| CN103852351B (en) * | 2014-03-25 | 2016-04-13 | 济钢集团有限公司 | A kind of sampler of extracting gases sample in negative-pressure pipeline and sampling method |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120926 Termination date: 20160227 |