CN209878430U - Gas sampling device - Google Patents
Gas sampling device Download PDFInfo
- Publication number
- CN209878430U CN209878430U CN201920417969.7U CN201920417969U CN209878430U CN 209878430 U CN209878430 U CN 209878430U CN 201920417969 U CN201920417969 U CN 201920417969U CN 209878430 U CN209878430 U CN 209878430U
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- Prior art keywords
- gas
- sampling
- collection
- gas collection
- port
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- 238000005070 sampling Methods 0.000 title claims abstract description 97
- 238000004519 manufacturing process Methods 0.000 claims abstract description 6
- 239000007789 gas Substances 0.000 claims description 446
- 239000002912 waste gas Substances 0.000 claims description 23
- 238000000605 extraction Methods 0.000 claims description 10
- 238000007789 sealing Methods 0.000 claims description 10
- 238000009423 ventilation Methods 0.000 claims description 6
- 238000004891 communication Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- Sampling And Sample Adjustment (AREA)
Abstract
The utility model discloses a gas sampling device, include: a gas inlet for the entry of a sample gas; an inlet duct for flow of a sample gas; the gas sampling pump is connected with the gas inlet pipeline and is used for driving the sampling gas to flow in the gas inlet pipeline; the gas collection port is connected with the gas inlet pipeline and is used for enabling the sampled gas to enter the gas collection bag; the gas collection bag is used for storing sampling gas; wherein, gaseous collection mouth includes in proper order: a first gas collection port for allowing a sample gas to enter the gas collection bag; a second gas collection port for allowing a sample gas to enter the gas collection bag; a third gas collection port for allowing the sampled gas to enter the gas collection bag; and the fourth gas collection port is used for enabling the sampling gas to enter the gas collection bag. The utility model discloses can gather gas according to the automatic sampling time interval of setting for in proper order to carry out gas production pipeline gas circulation when setting for length before gaseous collection, improve gaseous sampling device's collection efficiency and the degree of accuracy.
Description
Technical Field
The utility model relates to a detection area, more specifically says, the utility model relates to a gas sampling device.
Background
A gas sampling device is a device that collects gas.
Gas sampling devices in the prior art generally employ gas collection bags to collect the collected gas, but gas sampling devices in the prior art generally collect the gas from one collection bag at a time. In addition, in order to avoid mixing other non-collected target gases, the gas collection bag needs to be evacuated in advance, and the internal vacuum needs to be kept all the time before use, so that the evacuation treatment needs to be separately performed in advance. If continuous sampling is required according to a set time interval, the manual timing and independent sampling has a large time error.
Therefore, the gas sampling device in the prior art has low acquisition efficiency and low accuracy.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a gas sampling device can improve gas sampling device's collection efficiency and the degree of accuracy, reduces the error.
To achieve these objects and other advantages in accordance with the purpose of the invention, there is provided a gas sampling apparatus including:
a gas inlet for the entry of a sample gas;
the gas inlet pipeline is connected with the gas inlet and is used for sampling the flow of gas;
the gas sampling pump is connected with the gas inlet pipeline and is used for driving the sampling gas to flow in the gas inlet pipeline;
the gas collection port is connected with the gas inlet pipeline and is used for enabling the sampling gas to enter a gas collection bag;
a gas collection bag for storing the sampled gas;
wherein, gas acquisition mouth includes in proper order:
the first gas collection port is connected with the gas inlet pipeline and is used for enabling the sampling gas to enter the gas collection bag;
the second gas collection port is connected with the gas inlet pipeline and is used for enabling the sampling gas to enter the gas collection bag;
the third gas collection port is connected with the gas inlet pipeline and is used for enabling the sampling gas to enter the gas collection bag;
and the fourth gas collection port is connected with the gas inlet pipeline and used for enabling the sampling gas to enter the gas collection bag.
Optionally, the gas collection bag comprises:
the first gas collection bag is connected with the first gas collection port and used for storing the sampling gas;
the second gas collection bag is connected with the second gas collection port and used for storing the sampling gas;
the third gas collection bag is connected with the second gas collection port and used for storing the sampling gas;
and the fourth gas collection bag is connected with the second gas collection port and used for storing the sampling gas.
Optionally, the gas collection port is connected with the gas collection bag through a self-sealing type interface;
one end of the self-sealing interface connected with the gas collecting port is in a ventilation state,
the self-sealing type interface is in a ventilation state when being inserted into the gas collection bag, and is in a closing state when not being inserted into the gas collection bag.
Optionally, the apparatus further comprises:
the first collecting valve is arranged on the air inlet pipeline, is connected with the first gas collecting port and is used for opening and closing the first gas collecting port;
the second collecting valve is arranged on the gas inlet pipeline, is connected with the second gas collecting port and is used for opening and closing the second gas collecting port;
the third collecting valve is arranged on the gas inlet pipeline, is connected with the third gas collecting port and is used for opening and closing the third gas collecting port;
and the fourth collecting valve is arranged on the air inlet pipeline, is connected with the fourth gas collecting port and is used for opening and closing the fourth gas collecting port.
Optionally, the apparatus further comprises:
the air extraction pipeline is arranged on the air inlet pipeline between the air extraction pump and the first gas collection valve and is used for flowing waste gas;
the air extracting pump is arranged on the air extracting pipeline and is used for driving the waste gas to flow;
a waste gas outlet for the flow of the waste gas out of the gas sampling apparatus;
the waste gas is residual gas in the gas sampling device and the sampling bag before gas collection is started.
Optionally, the apparatus further comprises:
the gas outlet pipeline is connected with the gas inlet pipeline and is used for circulating the residual gas;
the gas outlet is connected with the gas outlet pipeline and is used for enabling the residual gas to flow out of the gas sampling device;
and the residual gas is the gas in the gas sampling device after the gas collection is finished.
Optionally, the apparatus further comprises:
and the delay collection valve is arranged on the gas outlet pipeline and used for closing the gas outlet pipeline after a preset time.
Optionally, the apparatus further comprises:
a controller, prior to collecting the sample gas, to:
opening the first gas collecting valve, the second gas collecting valve, the third gas collecting valve and the fourth gas collecting valve in sequence according to a set time interval;
and driving a suction pump to make the waste gas in the gas sampling device flow out from the waste gas outlet before the gas is collected.
Optionally, the controller is further configured to:
while collecting the sample gas:
closing the air pump;
opening the gas production pump;
and keeping the first gas collection valve open, and closing the second gas collection valve, the third gas collection valve and the fourth gas collection valve to enable the sampled gas to enter the first gas collection bag.
Optionally, the controller is further configured to:
after the first gas collection bag is full, the first gas collection valve is closed and the second gas collection valve is opened.
Optionally, the controller is further configured to:
and after the first gas collection bag, the second gas collection bag, the third gas collection bag and the fourth gas collection bag are filled, closing the fourth gas collection valve.
The utility model discloses at least, include following beneficial effect:
the utility model discloses a gas sampling device, a serial communication port, include: a gas inlet for the entry of a sample gas; the gas inlet pipeline is connected with the gas inlet and is used for sampling the flow of gas; the gas sampling pump is connected with the gas inlet pipeline and is used for driving the sampling gas to flow in the gas inlet pipeline; the gas collection port is connected with the gas inlet pipeline and is used for enabling the sampled gas to enter the gas collection bag; the gas collection bag is used for storing sampling gas; wherein, gaseous collection mouth includes in proper order: the first gas collection port is connected with the gas inlet pipeline and is used for enabling the sampled gas to enter the gas collection bag; the second gas collecting port is connected with the gas inlet pipeline and is used for enabling the sampled gas to enter the gas collecting bag; the third gas acquisition port is connected with the gas inlet pipeline and is used for enabling the sampled gas to enter the gas acquisition bag; and the fourth gas collection port is connected with the gas inlet pipeline and used for enabling the sampled gas to enter the gas collection bag. The utility model discloses can improve gas sampling device's collection efficiency and the degree of accuracy.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.
Drawings
Fig. 1 is a schematic structural view of a gas sampling apparatus according to an embodiment of the present invention;
fig. 2 is a schematic view of a panel of a gas sampling assembly according to an embodiment of the present invention.
Detailed Description
The present invention is further described in detail below with reference to the drawings so that those skilled in the art can implement the invention with reference to the description.
It is to be noted that the experimental methods described in the following embodiments are all conventional methods unless otherwise specified, and the reagents and materials, if not otherwise specified, are commercially available; in the description of the present invention, the terms "lateral", "longitudinal", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
As shown in fig. 1, the utility model provides a gas sampling device, include:
a gas inlet 110 for the entry of a sample gas;
an inlet pipe 111 connected to the inlet port for flow of the sample gas;
the gas sampling pump 112 is connected with the gas inlet pipeline 111 and is used for driving the sampling gas to flow in the gas inlet pipeline;
a gas collection port 113 connected to the gas inlet pipe 111 for allowing the sampled gas to enter a gas collection bag 114;
a gas collection bag 114 for storing the sampled gas;
wherein, gas acquisition mouth includes in proper order:
a first gas collection port 1131 connected to the gas inlet pipe 111 for allowing the sampled gas to enter the gas collection bag 114;
a second gas collection port 1132 connected to the gas inlet pipe 111 for allowing the sampled gas to enter the gas collection bag 114;
a third gas collection port 1133 connected to the gas inlet pipe 111 for allowing the sampled gas to enter the gas collection bag 114;
a fourth gas collection port 1134, connected to the gas inlet tube 111, for allowing the sampled gas to enter the gas collection bag 114.
The utility model discloses in, including a plurality of gaseous collection mouths and gaseous collection bag, can gather a plurality of gaseous collection bags simultaneously, consequently efficient.
The utility model discloses in, gaseous collection bag 114 includes:
the first gas collecting bag 1141 connected to the first gas collecting port 1131 for storing the sampled gas;
the second gas collecting bag 1142 connected to the second gas collecting port 1132, for storing the sampling gas;
the third gas collection bag 1143 connected to the second gas collection port 1133 for storing the sampled gas;
the fourth gas collection bag 1144, connected to the second gas collection port 1134, is configured to store the sampled gas.
In the utility model, the gas collecting port is connected with the gas collecting bag through a self-sealing type interface;
one end of the self-sealing interface connected with the gas collecting port is in a ventilation state,
the self-sealing type interface is in a ventilation state when being inserted into the gas collection bag, and is in a closing state when not being inserted into the gas collection bag.
The advantage of using a self-sealing interface is that the device of this embodiment does not leak gas even if the gas collection bag is not inserted.
The utility model discloses in, the device still includes:
a first collecting valve 1151, disposed on the air intake pipe 111, connected to the first gas collecting port 1131, and configured to open and close the first gas collecting port 1131;
a second collecting valve 1152, disposed on the air intake pipe 111, connected to the second gas collecting port 1132, and configured to open and close the second gas collecting port 1132;
a third collecting valve 1153, disposed on the air intake pipe 111, connected to the third gas collecting port 1133, and configured to open and close the third gas collecting port 1133;
and a fourth collecting valve 1154, disposed on the air intake pipe 111, connected to the fourth gas collecting port 1134, and configured to open and close the fourth gas collecting port 1133.
The utility model discloses in, the device still includes:
an air extraction pipe 120 disposed on an air inlet pipe between the gas extraction pump 112 and the first gas collection valve 1151, for flowing of the waste gas;
an air pump 121 disposed on the air extraction duct 120 for driving the flow of the waste gas;
a waste gas outlet 122 for the flow of the waste gas out of the gas sampling assembly;
the waste gas is the gas in the gas sampling device before the gas sampling is started.
The utility model discloses in, set up bleed-off line, aspiration pump, exhaust gas export etc. can discharge exhaust gas before beginning to gather gas sampling device avoids the pollution of exhaust gas in the device to the sampling gas, improves the purity of gathering gas.
The utility model discloses in, the device still includes:
an outlet pipe 130 connected to the inlet pipe 111 for flowing the remaining gas;
a gas outlet 131 connected to the gas outlet pipe 130, for allowing the residual gas to flow out of the gas sampling apparatus;
and the residual gas is the gas in the gas sampling device after the gas collection is finished.
The utility model discloses in, the device still includes:
and a delay collection valve 132 disposed on the gas outlet pipe 130, for closing the gas outlet pipe 130 after a preset time period.
The utility model discloses in, the device still includes:
a controller (not shown in FIG. 1) configured to, prior to collecting the sample gas:
opening the first gas collection valve 1151, the second gas collection valve 1152, the third gas collection valve 1153 and the fourth gas collection valve 1154;
the exhaust pump 121 is driven to discharge the exhaust gas in the gas sampling apparatus through the exhaust gas outlet 122.
The utility model discloses in, the controller still is used for:
while collecting the sample gas:
the suction pump 121 is turned off;
opening the gas production pump 112;
keeping the first gas collection valve 1151 open, closing the second gas collection valve 1152, the third gas collection valve 1153 and the fourth gas collection valve 1154, and allowing the sampled gas to enter the first gas collection bag 1141.
The controller is further configured to:
after the first gas collection bag is full, the first gas collection valve 1151 is closed and the second gas collection valve 1152 is opened.
The utility model discloses in, the controller still is used for:
after the first, second, third and fourth gas collection bags 1141, 1142, 1143, 1144 are full, the fourth gas collection valve 1154 is closed.
In an embodiment of the present invention, before collecting the sampled gas, the controller opens the first gas collection valve 1151, the second gas collection valve 1152, the third gas collection valve 1153, and the fourth gas collection valve 1154; the exhaust pump 121 is driven to discharge the exhaust gas in the gas sampling apparatus through the exhaust gas outlet 122.
The utility model discloses in, before gathering gas, make waste gas flow out, this waste gas can include the gas in each pipeline and the gas in the gaseous collection bag, and this can avoid sneaking into other non-collection target's gas in gathering gas, makes gaseous collection bag need not evacuation in advance before using simultaneously, has reduced work load. After the waste gas flows out, the waste gas is switched to a gas extraction pump switch to start gas collection, at this time, the controller closes the gas extraction pump 121, opens the gas extraction pump 112, keeps the first gas collection valve 1151 open, closes the second gas collection valve 1152, the third gas collection valve 1153 and the fourth gas collection valve 1154, and enables the sampled gas to enter the first gas collection bag 1141.
After the first gas collection bag is full, the controller closes 1151 and opens 1152 the first gas collection valve to allow the sample gas to enter 1142 the second gas collection bag.
After the second gas collection bag is full, the controller closes the second gas collection valve 1152 and opens the third gas collection valve 1153, allowing the sampled gas to enter the third gas collection bag 1143.
After the third gas collection bag is full, the controller closes 1153 and opens 1154 the third gas collection valve to allow the sampled gas to enter 1143 the fourth gas collection bag.
After all four gas collection bags are full, the controller closes 1154 the fourth gas collection valve. At this time, all four gas collection valves are closed.
The utility model discloses an in the above-mentioned embodiment including four gaseous collection bags, in the practical application, can also include more gaseous collection bags, corresponding gaseous collection mouth, gaseous collection valve etc. can all be more, and its theory of operation and flow are the same or similar with above-mentioned embodiment, no longer describe herein.
Fig. 2 is a panel diagram of a gas sampling device according to an embodiment of the present invention, as shown in fig. 2, the control panel includes:
and the master switch is used for controlling the power supply of the gas sampling device and the like.
The control panel is used for displaying the acquisition state and setting the automatic sampling time interval and the pipeline gas circulation time length before sampling.
The gas production pump switch is used for controlling the gas production pump;
the air pump switch is used for controlling the air pump;
a valve switch No. 1 for controlling the first gas collecting valve;
a valve switch No. 2 for controlling the second gas collecting valve;
a valve switch No. 3 for controlling the third gas collecting valve;
and the valve switch No. 4 is used for controlling the fourth gas collecting valve.
And an electric quantity display lamp can be arranged on the sampling panel.
The utility model discloses a gas sampling device, a serial communication port, include: a gas inlet for the entry of a sample gas; the gas inlet pipeline is connected with the gas inlet and is used for sampling the flow of gas; the gas sampling pump is connected with the gas inlet pipeline and is used for driving the sampling gas to flow in the gas inlet pipeline; the gas collection port is connected with the gas inlet pipeline and is used for enabling the sampled gas to enter the gas collection bag; the gas collection bag is used for storing sampling gas; wherein, gaseous collection mouth includes in proper order: the first gas collection port is connected with the gas inlet pipeline and is used for enabling the sampled gas to enter the gas collection bag; the second gas collecting port is connected with the gas inlet pipeline and is used for enabling the sampled gas to enter the gas collecting bag; the third gas acquisition port is connected with the gas inlet pipeline and is used for enabling the sampled gas to enter the gas acquisition bag; and the fourth gas collection port is connected with the gas inlet pipeline and used for enabling the sampled gas to enter the gas collection bag. The utility model discloses can improve gas sampling device's collection efficiency and the degree of accuracy.
While the embodiments of the invention have been described above, it is not intended to be limited to the details shown, or described, but rather to cover all modifications, which would come within the scope of the appended claims, and all changes which come within the meaning and range of equivalency of the art are therefore intended to be embraced therein.
Claims (11)
1. A gas sampling assembly, comprising:
a gas inlet for the entry of a sample gas;
the gas inlet pipeline is connected with the gas inlet and is used for sampling the flow of gas;
the gas sampling pump is connected with the gas inlet pipeline and is used for driving the sampling gas to flow in the gas inlet pipeline;
the gas collection port is connected with the gas inlet pipeline and is used for enabling the sampling gas to enter a gas collection bag;
a gas collection bag for storing the sampled gas;
wherein, gas acquisition mouth includes in proper order:
the first gas collection port is connected with the gas inlet pipeline and is used for enabling the sampling gas to enter the gas collection bag;
the second gas collection port is connected with the gas inlet pipeline and is used for enabling the sampling gas to enter the gas collection bag;
the third gas collection port is connected with the gas inlet pipeline and is used for enabling the sampling gas to enter the gas collection bag;
and the fourth gas collection port is connected with the gas inlet pipeline and used for enabling the sampling gas to enter the gas collection bag.
2. The gas sampling assembly of claim 1, wherein the gas collection pouch comprises:
the first gas collection bag is connected with the first gas collection port and used for storing the sampling gas;
the second gas collection bag is connected with the second gas collection port and used for storing the sampling gas;
the third gas collection bag is connected with the second gas collection port and used for storing the sampling gas;
and the fourth gas collection bag is connected with the second gas collection port and used for storing the sampling gas.
3. The gas sampling assembly of claim 2, wherein the gas collection port is coupled to the gas collection pouch via a self-sealing interface;
one end of the self-sealing interface connected with the gas collecting port is in a ventilation state,
the self-sealing type interface is in a ventilation state when being inserted into the gas collection bag, and is in a closing state when not being inserted into the gas collection bag.
4. The gas sampling assembly of claim 2, wherein the assembly further comprises:
the first collecting valve is arranged on the air inlet pipeline, is connected with the first gas collecting port and is used for opening and closing the first gas collecting port;
the second collecting valve is arranged on the gas inlet pipeline, is connected with the second gas collecting port and is used for opening and closing the second gas collecting port;
the third collecting valve is arranged on the gas inlet pipeline, is connected with the third gas collecting port and is used for opening and closing the third gas collecting port;
and the fourth collecting valve is arranged on the air inlet pipeline, is connected with the fourth gas collecting port and is used for opening and closing the fourth gas collecting port.
5. The gas sampling assembly of claim 4, wherein the assembly further comprises:
the air extraction pipeline is arranged on the air inlet pipeline between the air extraction pump and the first gas collection valve and is used for flowing waste gas;
the air extracting pump is arranged on the air extracting pipeline and is used for driving the waste gas to flow;
a waste gas outlet for the flow of the waste gas out of the gas sampling apparatus;
the waste gas is the residual gas in the gas sampling device and the collecting bag before the gas is collected.
6. The gas sampling assembly of claim 5, wherein the assembly further comprises:
the gas outlet pipeline is connected with the gas inlet pipeline and is used for flowing residual gas;
the gas outlet is connected with the gas outlet pipeline and is used for enabling the residual gas to flow out of the gas sampling device;
and the residual gas is the gas in the gas sampling device after the gas collection is finished.
7. The gas sampling assembly of claim 6, wherein the assembly further comprises:
and the delay collection valve is arranged on the gas outlet pipeline and used for closing the gas outlet pipeline after a preset time.
8. The gas sampling assembly of claim 7, wherein the assembly further comprises:
a controller, prior to collecting the sample gas, to:
opening the first gas collecting valve, the second gas collecting valve, the third gas collecting valve and the fourth gas collecting valve in sequence according to a set time interval;
and driving a suction pump to make the waste gas in the gas sampling device flow out from the waste gas outlet before the gas is collected.
9. The gas sampling assembly of claim 7, wherein the controller is further configured to:
while collecting the sample gas:
closing the air pump;
opening the gas production pump;
and keeping the first gas collection valve open, and closing the second gas collection valve, the third gas collection valve and the fourth gas collection valve to enable the sampled gas to enter the first gas collection bag.
10. The gas sampling assembly of claim 9, wherein the controller is further configured to:
after the first gas collection bag is full, the first gas collection valve is closed and the second gas collection valve is opened.
11. The gas sampling assembly of claim 10, wherein the controller is further configured to:
and after the first gas collection bag, the second gas collection bag, the third gas collection bag and the fourth gas collection bag are filled, closing the fourth gas collection valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920417969.7U CN209878430U (en) | 2019-03-29 | 2019-03-29 | Gas sampling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920417969.7U CN209878430U (en) | 2019-03-29 | 2019-03-29 | Gas sampling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209878430U true CN209878430U (en) | 2019-12-31 |
Family
ID=68957374
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920417969.7U Expired - Fee Related CN209878430U (en) | 2019-03-29 | 2019-03-29 | Gas sampling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209878430U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111766121A (en) * | 2020-08-03 | 2020-10-13 | 四川洁承环境科技有限公司 | Air collection equipment for air detection |
-
2019
- 2019-03-29 CN CN201920417969.7U patent/CN209878430U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111766121A (en) * | 2020-08-03 | 2020-10-13 | 四川洁承环境科技有限公司 | Air collection equipment for air detection |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191231 Termination date: 20210329 |
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| CF01 | Termination of patent right due to non-payment of annual fee |