CN201547051U - Changeover valve set with multiple flow paths - Google Patents
Changeover valve set with multiple flow paths Download PDFInfo
- Publication number
- CN201547051U CN201547051U CN2009203116610U CN200920311661U CN201547051U CN 201547051 U CN201547051 U CN 201547051U CN 2009203116610 U CN2009203116610 U CN 2009203116610U CN 200920311661 U CN200920311661 U CN 200920311661U CN 201547051 U CN201547051 U CN 201547051U
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- way valve
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- multithread road
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Abstract
The utility model discloses a changeover valve set with multiple flow paths, which comprises a basic module and a multi-flow path module, wherein the basic module and the multi-flow path module are connected in parallel; the basic module adopts a first three-way valve; the multi-flow path module is formed by the series connection of a second three-way valve and a third three-way valve; the second port of the second three-way valve is communicated with the first port of the third three-way valve; the first port of the first three-way valve of the basic module is a sample inlet, and the third port is communicated with an exhaust gas discharge port; the first port of the second three-way valve of the multi-flow path module is a sample inlet, and the third port is communicated with the exhaust gas discharge port; and the second port of the third three-way valve is a sample outlet, and the third port is communicated with the second port of the first three-way valve of the basic module. By adopting the mode that the basic module and the multi-flow path module are connected in parallel, the utility model overcomes the problem that gas can mix when the traditional flow path changeover mode is adopted. In addition, when the amount of the flow path increases, the requirements can be met so long as the amount of the multi-flow path module increases.
Description
Technical field
The utility model relates to a kind of valve group, particularly a kind of anti-multithread road switching valve group of collaborating.
Background technique
The valve group is a kind of cover of one in sample processing system integrated form parts that are widely used in, and its major function is to realize the switching of stream between the sample of multithread road.
At present, the switching of realization stream typically uses three-way valve and finishes, wherein, traditional dual flow path switches, as shown in Figure 1, realize by a Pneumatic three-way valve, as shown in Figure 2, three traditional streams switch by two pneumatic valves to be realized, is exactly to collaborate easily but there is maximum problem in this design, when having the gas componant of phase mutual interference between the different streams, can produce great error to the accuracy of measuring even give the judgement that makes mistake.Switch to example with two streams: stream 1 contains CO 20ppm, stream 2 contains CO 80%, when the CO of stream 1 need measure,, also can allow the CO content error in the stream 1 reach 100% if even the sample in the stream 2 only has 1/40000 volume to sneak into the stream 1 of 1 volume.Therefore, the error that phenomenon produced of collaborating of traditional stream switching mode has had a strong impact on the last accuracy of survey data, and real-time monitoring has brought very big trouble to sample to us.
The model utility content
Goal of the invention of the present utility model is: at the problem of above-mentioned existence, provide a kind of anti-collaborating, measure accurately the multithread road switching valve group of convenient expansion.
The technical solution of the utility model is achieved in that a kind of multithread road switching valve group, it is characterized in that: it comprises basic module and multithread road module, basic module is in parallel with multithread road module, described basic module is first three-way valve, multithread road module is in series by second three-way valve and the 3rd three-way valve, and second port of second three-way valve is communicated with first port of the 3rd three-way valve; First port of first three-way valve of described basic module is a sample inlet, and its 3rd port is communicated with Waste gas outlet; First port of second three-way valve of described multithread road module is the sample entry port, its the 3rd port is communicated with Waste gas outlet, second port of described the 3rd three-way valve is the sample export end, and its 3rd port is communicated with second port of first three-way valve of basic module.
In order to make the valve group can realize three streams or the switching more than three streams, multithread described in the utility model road switching valve group, described multithread road module has two or more, in parallel step by step between the module of a plurality of multithread road, the 3rd port of the three-way valve that is communicated with the sample inlet end in each multithread road module all is communicated with Waste gas outlet, in the multithread road module of parallel connections at different levels, second port away from the three-way valve of sample inlet end in subordinate's multithread road module all is communicated with step by step with the 3rd port of its upper level away from sample inlet end three-way valve, second port of three-way valve away from the sample inlet end at the highest level is communicated with the sample export end, and the 3rd port away from the three-way valve of sample inlet end of second port of the three-way valve of described basic module and first order multithread road module is communicated with.
The mode of the utility model by being connected in parallel between basic module and a plurality of multithread road module overcome the problem that traditional stream switching mode is collaborated, and when stream increases, only needs to increase the quantity of multithread road module, just can satisfy the demands.
In sum, owing to adopted technique scheme, the beneficial effects of the utility model are:
1, by the design that is connected of basic module and multithread road module, can effectively avoid the phenomenon of collaborating that exists in traditional stream switching mode, improved the accuracy that collected specimens is measured greatly.
2, according to real needs, when required stream increased, the quantity that only need increase multithread road module on the original basis got final product, and the expansion of stream is very convenient.
3, the valve group is based on its mechanically compact design, and dead volume is littler.
Description of drawings
Fig. 1 is that traditional dual flow path switches schematic representation.
Fig. 2 is that three traditional streams switch schematic representation.
Fig. 3 is the structural representation of the utility model basic module.
Fig. 4 is the structural representation of the utility model multithread road module.
Fig. 5 is that the utility model dual flow path switches schematic representation.
Fig. 6 is that the utility model three streams switch schematic representation.
Mark among the figure: 1 is first three-way valve, 1a is first port of first three-way valve, 1b is second port of first three-way valve, 1c is the 3rd port of first three-way valve, 2 is second three-way valve, 2a is first port of second three-way valve, and 2b is second port of second three-way valve, and 2c is the 3rd end of second three-way valve, mouthful, 3 is the 3rd three-way valve, and 3a is first port of the 3rd three-way valve, and 3b is second port of the 3rd three-way valve, 3c is the 3rd port of the 3rd three-way valve, 4 is the sample inlet end, and 5 is the sample export end, and 6 is Waste gas outlet.
Embodiment
Below in conjunction with accompanying drawing, the utility model is done detailed explanation.
In order to make the purpose of this utility model, technological scheme and advantage clearer,, the utility model is further elaborated below in conjunction with drawings and Examples.Should be appreciated that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.
Embodiment 1: as shown in Figure 5, a kind of dual flow path switching valve group, it comprises a basic module and a multithread road module, basic module is in parallel with multithread road module, described basic module is first three-way valve 1, multithread road module is in series by second three-way valve 2 and the 3rd three-way valve 3, and the second port 2b of second three-way valve 2 is communicated with the first port 3a of the 3rd three-way valve 3; The first port one a of first three-way valve 1 of described basic module is a sample inlet end 4, and its 3rd port one c is communicated with Waste gas outlet 6; The first port 2a of second three-way valve 2 of described multithread road module is a sample entry port end 4, its the 3rd port 2c is communicated with Waste gas outlet 6, the second port 3b of described the 3rd three-way valve 3 is a sample export end 5, and its 3rd port 3c is communicated with the second port one b of first three-way valve 1 of basic module.
Embodiment 2: as shown in Figure 6, a kind of three flow channel switching valve groups, it is multithread road module in parallel again on the basis of dual flow path switching valve group, the 3rd port of the three-way valve that is communicated with the sample inlet end in two multithread road modules all is communicated with Waste gas outlet, in the multithread road module of two parallel connections, second port away from the three-way valve of sample inlet end in subordinate's multithread road module is communicated with the 3rd port of its upper level away from sample inlet end three-way valve, upper level is communicated with the sample export end away from second port of the three-way valve of sample inlet end, and the 3rd port away from the three-way valve of sample inlet end of second port of the three-way valve of described basic module and subordinate multithread road module is communicated with.
In sum, when stream increases, only need to increase multithread road module, need a basic module and a multithread road module when switching as the dual flow path module, when switching, three streams need a basic module and two multithread road modules, by that analogy, thus the quantity that only needs to increase multithread road module satisfies the demand that stream increases.
The above only is preferred embodiment of the present utility model; not in order to restriction the utility model; all any modifications of within spirit of the present utility model and principle, being done, be equal to and replace and improvement etc., all should be included within the protection domain of the present utility model.
Claims (2)
1. multithread road switching valve group, it is characterized in that: it comprises basic module and multithread road module, basic module is in parallel with multithread road module, described basic module is first three-way valve (1), multithread road module is in series by second three-way valve (2) and the 3rd three-way valve (3), and second port (2b) of second three-way valve (2) is communicated with first port (3a) of the 3rd three-way valve (3); First port (1a) of first three-way valve (1) of described basic module is sample inlet end (4), and its 3rd port (1c) is communicated with Waste gas outlet (6); First port (2a) of second three-way valve (2) of described multithread road module is a sample entry port end (4), its the 3rd port (2c) is communicated with Waste gas outlet (6), second port (3b) of described the 3rd three-way valve (3) is sample export end (5), and its 3rd port (3c) is communicated with second port (1b) of first three-way valve (1) of basic module.
2. multithread according to claim 1 road switching valve group, it is characterized in that: described multithread road module has two or more, in parallel step by step between the module of a plurality of multithread road, the 3rd port of the three-way valve that is communicated with the sample inlet end in each multithread road module all is communicated with Waste gas outlet (6), in the multithread road module of parallel connections at different levels, second port away from the three-way valve of sample inlet end in subordinate's multithread road module all is communicated with step by step with the 3rd port of its upper level away from sample inlet end three-way valve, second port of three-way valve away from the sample inlet end at the highest level is communicated with sample export end (5), and the 3rd port away from the three-way valve of sample inlet end of second port of the three-way valve of described basic module and first order multithread road module is communicated with.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203116610U CN201547051U (en) | 2009-09-28 | 2009-09-28 | Changeover valve set with multiple flow paths |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203116610U CN201547051U (en) | 2009-09-28 | 2009-09-28 | Changeover valve set with multiple flow paths |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201547051U true CN201547051U (en) | 2010-08-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009203116610U Expired - Fee Related CN201547051U (en) | 2009-09-28 | 2009-09-28 | Changeover valve set with multiple flow paths |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201547051U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104792575A (en) * | 2015-04-10 | 2015-07-22 | 合盛硅业股份有限公司 | Sampling system and method for producing methyl chlorosilane |
| CN105352074A (en) * | 2014-08-20 | 2016-02-24 | 刘先忠 | Multifunctional air conditioner |
-
2009
- 2009-09-28 CN CN2009203116610U patent/CN201547051U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105352074A (en) * | 2014-08-20 | 2016-02-24 | 刘先忠 | Multifunctional air conditioner |
| CN104792575A (en) * | 2015-04-10 | 2015-07-22 | 合盛硅业股份有限公司 | Sampling system and method for producing methyl chlorosilane |
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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: 20100811 Termination date: 20140928 |
|
| EXPY | Termination of patent right or utility model |