CN220084778U - Portable gas chromatograph convenient to advance kind - Google Patents
Portable gas chromatograph convenient to advance kind Download PDFInfo
- Publication number
- CN220084778U CN220084778U CN202321244099.0U CN202321244099U CN220084778U CN 220084778 U CN220084778 U CN 220084778U CN 202321244099 U CN202321244099 U CN 202321244099U CN 220084778 U CN220084778 U CN 220084778U
- Authority
- CN
- China
- Prior art keywords
- gas chromatograph
- peristaltic
- pipe
- sample
- quantitative
- 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.)
- Active
Links
- 230000002572 peristaltic effect Effects 0.000 claims abstract description 75
- 238000002347 injection Methods 0.000 claims description 29
- 239000007924 injection Substances 0.000 claims description 29
- 230000000149 penetrating effect Effects 0.000 abstract description 5
- 238000000034 method Methods 0.000 abstract description 4
- 238000001514 detection method Methods 0.000 abstract description 3
- 238000005070 sampling Methods 0.000 description 14
- 239000007788 liquid Substances 0.000 description 4
- 238000005096 rolling process Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000009975 flexible effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000004445 quantitative analysis Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Landscapes
- Sampling And Sample Adjustment (AREA)
Abstract
The utility model belongs to the technical field of analytical instruments, and particularly provides a portable gas chromatograph convenient to sample, which comprises a gas chromatograph body, a peristaltic sample injector and a quantitative controller, wherein the peristaltic sample injector is fixedly arranged at the end part of the gas chromatograph body in a penetrating way, and the quantitative controller is arranged on the upper wall of the gas chromatograph body. According to the peristaltic sample feeding device, the direct contact between the power piece of the device and a sample is avoided, the detection precision is ensured, and the sample volume extruded into the device in the single rotation process of the peristaltic wheel is a fixed value, so that quantitative sample feeding is realized.
Description
Technical Field
The utility model belongs to the technical field of analytical instruments, and particularly relates to a portable gas chromatograph convenient for sample injection.
Background
In gas chromatograph, gas sampling valve or injector is widely used to sample, because the key parts of this kind of sampling device are both movable parts, both flexible action and sealing are required, so there is very high requirement in processing, manufacturing and use and maintenance, and volumetric quantitative method makes the magnitude of the sample amount influenced by temperature and pressure of the sample greatly, quantitative precision is low, often need to be corrected, and the sample amount is different because of the liquid or gas attribute of the sample, and simultaneously, the existing sampling method generally makes the sample and equipment directly contact, and will influence the test precision.
In the prior art, a device which is convenient for sample injection of a portable gas chromatograph and can control the sample injection amount is lacking.
Disclosure of Invention
The portable gas chromatograph convenient for sample injection is provided, the direct contact between a power piece of equipment and a sample is avoided by peristaltic sample injection, the detection precision is ensured, and the sample volume extruded into the equipment in a single rotation process of the peristaltic wheel is a fixed value, so that quantitative sample injection is realized.
The technical scheme adopted by the utility model is as follows: the utility model provides a portable gas chromatograph convenient to advance sample, including gas chromatograph body, peristaltic sample injector and quantitative controller, peristaltic sample injector link up fixedly and locates gas chromatograph body tip, quantitative controller locates gas chromatograph body upper wall, peristaltic sample injector includes peristaltic pump, first sampling tube, second sampling tube and advances the return bend, peristaltic pump is fixed to be located gas chromatograph body tip, first sampling tube runs through fixedly and locates gas chromatograph body tip, the tip and peristaltic pump circumference lateral wall link up connection that gas chromatograph body was kept away from to first sampling tube, second sampling tube runs through fixedly and locates peristaltic pump lateral wall, second sampling tube and first sampling tube set up relatively, advance the return bend and rotate and link up and locate the tip that the peristaltic pump was kept away from to the second sampling tube.
Further, peristaltic feeding rubber pipes are arranged on the inner wall of the peristaltic pump, two ends of each peristaltic feeding rubber pipe are respectively arranged on the inner wall of the first sample feeding pipe and the inner wall of the second sample feeding pipe, two ends of each peristaltic feeding rubber pipe are respectively communicated and fixedly connected with the inner wall of the first sample feeding pipe and the inner wall of the second sample feeding pipe, and the middle part of each peristaltic feeding rubber pipe is laid with a half circumference along the circumferential inner wall of the peristaltic pump.
Further, a sample feeding rod is arranged on an output shaft of the inner wall of the peristaltic pump in a transmission way, peristaltic wheels are respectively arranged at two ends of the sample feeding rod in a rotating way, and the peristaltic wheels are used for carrying out rolling extrusion on peristaltic feeding rubber pipes, so that feeding is achieved.
Further, the quantitative controller comprises a quantitative control knob and a quantitative scale, the quantitative control knob is rotationally arranged on the upper wall of the gas chromatograph body, the quantitative scale is fixedly arranged on the upper wall of the gas chromatograph body, the quantitative scale is arranged around the exterior of the quantitative control knob, and the quantitative control knob is electrically connected with the peristaltic pump.
Further, the quantitative control knob is controlled by a mechanical timer.
Compared with the prior art, the utility model has the beneficial effects that:
(1) The peristaltic sample injector avoids the direct contact between the power piece of the equipment and a sample in a peristaltic sample injection mode, ensures the detection precision, and the sample volume extruded into the equipment in the single rotation process of the peristaltic wheel is a fixed value, so that quantitative sample injection is realized;
(2) The quantitative controller realizes the control of the quantitative function of the peristaltic sample injector by using a simple mechanical timer;
(3) The peristaltic sample injector is used for injecting samples through the soft rubber tube, so that the equipment can collect gas samples and liquid samples;
(4) The rotation setting mode of the sample injection bent pipe improves the flexibility of the sample injection end, and is more convenient for sample injection operation.
Drawings
FIG. 1 is a schematic diagram of a portable gas chromatograph with convenient sample injection;
FIG. 2 is a side cross-sectional view of a portable gas chromatograph with sample injection convenience according to the present utility model;
FIG. 3 is a schematic view of the structure of the present utility model for the forcer and drilling motor;
fig. 4 is a partial enlarged view of a portion a in fig. 1.
Wherein, 1, a gas chromatograph body, 2, a peristaltic sample injector, 21, a peristaltic pump, 211, a peristaltic feeding rubber tube, 212, a sample injection rod, 2121 and a peristaltic wheel, 22, a first sampling tube, 23, a second sampling tube, 24, a sampling elbow, 3, a quantitative controller, 31, a quantitative control knob, 32 and a quantitative scale.
The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the embodiments of the utility model, serve to explain the utility model.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model; all other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Examples
Referring to fig. 1-4, a portable gas chromatograph with convenient sample injection in the present embodiment includes a gas chromatograph body 1, a peristaltic sample injector 2 and a quantitative controller 3, wherein the peristaltic sample injector 2 is fixedly arranged at the end of the gas chromatograph body 1 in a penetrating manner, the quantitative controller 3 is arranged at the upper wall of the gas chromatograph body 1, the peristaltic sample injector 2 includes a peristaltic pump 21, a first sample inlet tube 22, a second sample inlet tube 23 and a sample inlet elbow 24, the peristaltic pump 21 is fixedly arranged at the end of the gas chromatograph body 1, the first sample inlet tube 22 is fixedly arranged at the end of the gas chromatograph body 1 in a penetrating manner, the end of the first sample inlet tube 22 far from the gas chromatograph body 1 is fixedly connected with the circumferential side wall of the peristaltic pump 21 in a penetrating manner, the second sample inlet tube 23 is fixedly arranged at the side wall of the peristaltic pump 21 in a penetrating manner, the second sample inlet tube 23 is relatively arranged with the first sample inlet tube 22, and the sample inlet elbow 24 is rotatably arranged at the end of the second sample inlet tube 23 far from the peristaltic pump 21.
Further, a peristaltic feeding rubber tube 211 is arranged on the inner wall of the peristaltic pump 21, two ends of the peristaltic feeding rubber tube 211 are respectively arranged on the inner walls of the first feeding tube 22 and the second feeding tube 23, two ends of the peristaltic feeding rubber tube 211 are respectively communicated and fixedly connected with the inner walls of the first feeding tube 22 and the second feeding tube 23, and the middle part of the peristaltic feeding rubber tube 211 is laid with a half circumference along the circumferential inner wall of the peristaltic pump 21.
Further, a sample feeding rod 212 is arranged on an output shaft of the inner wall of the peristaltic pump 21 in a transmission way, peristaltic wheels 2121 are respectively arranged at two ends of the sample feeding rod 212 in a rotating way, and the peristaltic wheels 2121 are used for rolling and extruding peristaltic feeding rubber pipes 211, so that feeding is achieved.
Further, the quantitative controller 3 includes a quantitative control knob 31 and a quantitative scale 32, the quantitative control knob 31 is rotatably disposed on the upper wall of the gas chromatograph body 1, the quantitative scale 32 is fixedly disposed on the upper wall of the gas chromatograph body 1, the quantitative scale 32 is disposed around the exterior of the quantitative control knob 31, and the quantitative control knob 31 is electrically connected with the peristaltic pump 21.
Further, the quantitative control knob 31 is controlled by a mechanical timer.
The specific implementation manner of the embodiment is as follows: when the operator holds the gas chromatograph body 1, and needs to collect gas to measure, the quantitative control knob 31 is directly screwed to the corresponding quantitative scale 32 to control the air inflow, the peristaltic pump 21 operates and enables the sample injection rod 212 to rotate, the sample injection rod 212 drives the peristaltic wheel 2121 to move, the peristaltic wheel 2121 continuously performs rolling extrusion on the peristaltic feeding rubber tube 211, so that gas enters the peristaltic feeding rubber tube 211 through the sample injection elbow 24 and the second sample injection tube 23 and enters the gas chromatograph body 1 through the first sample injection tube 22, and when the quantitative control knob 31 is restored to an initial state, the peristaltic pump 21 stops operating to realize quantitative sample injection.
When a liquid sample needs to be collected, an operator rotates the end part of the sample injection bent pipe 24 to face obliquely downwards, so that the end part of the sample injection bent pipe 24 stretches into the liquid, and quantitative sample injection is carried out by adopting the same control mode.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions.
The utility model and its embodiments have been described above with no limitation, and the actual construction is not limited to the embodiments of the utility model as shown in the drawings. In summary, if one of ordinary skill in the art is informed by this disclosure, a structural manner and an embodiment similar to the technical solution should not be creatively devised without departing from the gist of the present utility model.
Claims (5)
1. The utility model provides a portable gas chromatograph convenient to advance, includes gas chromatograph body (1), its characterized in that: the gas chromatograph body (1) tip link up fixedly and is equipped with peristaltic sample introduction ware (2), gas chromatograph body (1) upper wall is equipped with quantitative controller (3), peristaltic sample introduction ware (2) are including peristaltic pump (21), first advance appearance pipe (22), second advance appearance pipe (23) and advance appearance return bend (24), peristaltic pump (21) are fixed to be located gas chromatograph body (1) tip, first advance appearance pipe (22) run through fixedly and locate gas chromatograph body (1) tip, the tip that gas chromatograph body (1) and peristaltic pump (21) circumference lateral wall link up are kept away from in first appearance pipe (22), second advance appearance pipe (23) run through fixedly and are located peristaltic pump (21) lateral wall, second advance appearance pipe (23) and first advance appearance pipe (22) and set up relatively, advance appearance return bend (24) rotation and link up the tip that locates second advance pipe (23) and keep away from peristaltic pump (21).
2. The portable gas chromatograph for facilitating sample injection of claim 1, wherein: peristaltic feeding rubber pipes (211) are arranged on the inner wall of the peristaltic pump (21), two ends of each peristaltic feeding rubber pipe (211) are respectively arranged on the inner walls of the first feeding pipe (22) and the second feeding pipe (23), two ends of each peristaltic feeding rubber pipe (211) are respectively communicated and fixedly connected with the inner walls of the first feeding pipe (22) and the second feeding pipe (23), and the middle of each peristaltic feeding rubber pipe (211) is laid with a half circumference along the circumferential inner wall of the peristaltic pump (21).
3. The portable gas chromatograph for facilitating sample injection of claim 2, wherein: the middle part of the inner wall of the peristaltic pump (21) is rotationally provided with a sample injection rod (212), and two ends of the sample injection rod (212) are respectively rotationally provided with a peristaltic wheel (2121).
4. A portable gas chromatograph with convenient sample injection according to claim 3, characterized in that: the quantitative controller (3) comprises a quantitative control knob (31) and a quantitative scale (32), the quantitative control knob (31) is rotationally arranged on the upper wall of the gas chromatograph body (1), the quantitative scale (32) is fixedly arranged on the upper wall of the gas chromatograph body (1), the quantitative scale (32) is arranged around the outside of the quantitative control knob (31), and the quantitative control knob (31) is electrically connected with the peristaltic pump (21).
5. The portable gas chromatograph convenient for sample introduction of claim 4, wherein: the quantitative control knob (31) is controlled by a mechanical timer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321244099.0U CN220084778U (en) | 2023-05-22 | 2023-05-22 | Portable gas chromatograph convenient to advance kind |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321244099.0U CN220084778U (en) | 2023-05-22 | 2023-05-22 | Portable gas chromatograph convenient to advance kind |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220084778U true CN220084778U (en) | 2023-11-24 |
Family
ID=88813830
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321244099.0U Active CN220084778U (en) | 2023-05-22 | 2023-05-22 | Portable gas chromatograph convenient to advance kind |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220084778U (en) |
-
2023
- 2023-05-22 CN CN202321244099.0U patent/CN220084778U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206504899U (en) | A kind of sampling of water quality detection means | |
| CN108680401B (en) | Water quality monitoring system based on unmanned ship | |
| CN220084778U (en) | Portable gas chromatograph convenient to advance kind | |
| CN207318158U (en) | Soil liquid sampler | |
| CN110553878A (en) | A high-efficient type soil solution sampling device for soil detection | |
| CN107655719A (en) | A kind of underground water pollution monitoring sampling apparatus | |
| CN110230589A (en) | Eccentric wheel rotary squeezing drip pump | |
| CN116481872A (en) | AMC on-line monitoring device for semiconductor clean factory building | |
| CN206583833U (en) | A kind of on-line measuring device in situ | |
| CN212059529U (en) | Ware is equallyd divide in portable sampling | |
| CN115267026A (en) | High-pressure low-temperature phase balance measuring device | |
| CN210834907U (en) | Online measuring equipment for water content of crude oil | |
| CN109404287B (en) | detection structure of screw vacuum pump | |
| CN208568698U (en) | A kind of adjustable vapour lock device of gas chromatograph | |
| CN217232058U (en) | Water supply pipeline based on safety control | |
| CN110887915A (en) | Standard oil sample manufacturing device and method for transformer oil chromatography online monitoring | |
| CN203385747U (en) | Injection pump integrated automatic sampling system | |
| CN110596353A (en) | Online measuring equipment for water content of crude oil | |
| CN103424561A (en) | Injection pump integrated automatic sample adding system | |
| CN221182215U (en) | Collecting device for gas treatment | |
| CN219197735U (en) | Adjustable pipeline pump device | |
| CN111207966A (en) | Sampling mechanism for high-temperature waste gas laboratory detection | |
| CN111141884B (en) | Detection device for drinking water sensing equipment of microfluidic field effect transistor | |
| CN219758130U (en) | Sample injection device based on TOC apparatus | |
| CN219714886U (en) | Sampler for monitoring wastewater discharge |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |