CN112539976A - Be used for gaseous multiple spot sampling test equipment on line - Google Patents
Be used for gaseous multiple spot sampling test equipment on line Download PDFInfo
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- CN112539976A CN112539976A CN202011263976.XA CN202011263976A CN112539976A CN 112539976 A CN112539976 A CN 112539976A CN 202011263976 A CN202011263976 A CN 202011263976A CN 112539976 A CN112539976 A CN 112539976A
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- gas
- air inlet
- inlet pipe
- sampling
- communicated
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/22—Devices for withdrawing samples in the gaseous state
- G01N1/2202—Devices for withdrawing samples in the gaseous state involving separation of sample components during sampling
- G01N1/2205—Devices for withdrawing samples in the gaseous state involving separation of sample components during sampling with filters
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/22—Devices for withdrawing samples in the gaseous state
- G01N1/24—Suction devices
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0004—Gaseous mixtures, e.g. polluted air
- G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
- G01N33/0027—General constructional details of gas analysers, e.g. portable test equipment concerning the detector
Abstract
The invention relates to an online gas multipoint sampling detection device, which comprises a gas detector, a gas pump and a plurality of detection heads, wherein a gas outlet of the gas pump is communicated with the gas detector through a gas outlet pipe, and a gas inlet of the gas pump is communicated with a gas inlet pipe; the multiple detection heads are communicated with the air inlet pipe through branch pipes respectively, and valves are installed on each branch pipe respectively. The invention has the advantages of realizing multi-point position successive sampling or multi-point position mixed sampling, being convenient for sampling, greatly improving the sampling efficiency and having lower cost.
Description
Technical Field
The invention relates to the technical field of gas detection equipment, in particular to online gas multipoint sampling detection equipment.
Background
The sampling mode of the on-line gas detector in the market at present is divided into two types, namely pumping type sampling and diffusion type sampling analysis, and the detection range is a radius range of three meters at a sampling point. The online gas detector sampling has the following defects:
1. on-line gas detectors can only achieve single-point sampling. If the gas samples in a plurality of adjacent areas or adjacent different pipeline containers need to be subjected to area-indistinguishable analysis, the gas detectors can be respectively installed in different areas or sampling pipes of the gas detectors can be sequentially moved to different areas.
2. All on-line gas detectors are point sampling analysis, and cannot realize mixed sampling in a large-range space. From the above two problems, it can be seen that the sampling method of the current gas detector is very simple, and there are many inconveniences in the gas sampling analysis in practical work.
Disclosure of Invention
The invention aims to provide an online gas multipoint sampling detection device, and aims to solve the technical problem.
The technical scheme for solving the technical problems is as follows:
a multi-point sampling and detecting device for on-line gas comprises a gas detector, a gas pump and a plurality of detecting heads, wherein a gas outlet of the gas pump is communicated with the gas detector through a gas outlet pipe, and a gas inlet of the gas pump is communicated with a gas inlet pipe; the detection heads are communicated with the air inlet pipe through branch pipes respectively, and valves are mounted on the branch pipes respectively.
The invention has the beneficial effects that: through opening the valve one by one or open a plurality of valves simultaneously in order to realize sampling point by point or multiple spot mixed sampling to detect for gas detector, sample convenient and fast, efficiency improves greatly. The invention can realize multi-point position successive sampling or multi-point position mixed sampling, has convenient sampling, greatly improves the sampling efficiency and has lower cost.
On the basis of the technical scheme, the invention can be further improved as follows.
Furthermore, both ends of the air inlet pipe are open, one end of the air inlet pipe is communicated with the air inlet of the air pump, the other end of the air inlet pipe is communicated with one end of one of the branch pipes, and one end of the rest branch pipe is communicated with the position between the two ends of the air inlet pipe.
The beneficial effects of adopting above-mentioned further scheme are simple structure, reasonable in design, convenient quick sample.
Furthermore, one end of the air inlet pipe is open, the other end of the air inlet pipe is closed, the open end of the air inlet pipe is communicated with an air inlet of the air pump, and one ends of the branch pipes are communicated with the positions between the two ends of the air inlet pipe.
The beneficial effects of adopting above-mentioned further scheme are simple structure, reasonable in design, convenient quick sample.
Furthermore, a filter is arranged on the air inlet pipe and/or the air outlet pipe, and the filter positioned on the air inlet pipe is positioned between the air pump and the plurality of branch pipes.
The beneficial effects of adopting above-mentioned further scheme are that filter the moisture and the dust in the sample gas of taking, avoid moisture and dust in the sample gas to get into air pump and gas detector and influence its working property, guarantee the working property of air pump and gas detector.
The gas pump and the gas detector are respectively connected with the single chip microcomputer through lines.
The beneficial effects of adopting above-mentioned further scheme are that through single chip microcomputer control air pump and gas detector carry out work, degree of automation improves greatly, and the sampling is convenient, and sampling efficiency improves greatly.
Furthermore, the valves are all electromagnetic valves, and the electromagnetic valves are connected with the single chip microcomputer through lines respectively.
The beneficial effects of adopting above-mentioned further scheme are that open one by one or a plurality of opening simultaneously through single chip microcomputer control valve to realize sample point by point or multiple spot mixed sampling, detect with gas detector, sample convenient and fast, efficiency improves greatly.
Further, still include explosion-proof box, the air pump with the singlechip all is located explosion-proof box.
The beneficial effects of adopting above-mentioned further scheme are that protection staff's safety, safety in production.
Furthermore, every it all overlaps and is equipped with dustproof cap to detect the head, every be equipped with at least one gas inlet on the dustproof cap.
The beneficial effect who adopts above-mentioned further scheme is that can prevent through dustproof cap that the dust from getting into in the bronchus to get into in air pump and the gas detector and influence its working property, guarantee air pump and gas detector normal work.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
In the drawings, the components represented by the respective reference numerals are listed below:
1. gas detector, 2, air pump, 3, outlet duct, 4, intake pipe, 5, valve, 6, filter, 7, singlechip, 8, explosion-proof case, 9, dustproof cap.
Detailed Description
The principles and features of this invention are described below in conjunction with the following drawings, which are set forth by way of illustration only and are not intended to limit the scope of the invention.
As shown in fig. 1, the present invention provides an online gas multipoint sampling detection device, which comprises a gas detector 1, a gas pump 2 and a plurality of detection heads, wherein a gas outlet of the gas pump 2 is communicated with the gas detector 1 through a gas outlet pipe 3, and a gas inlet thereof is communicated with a gas inlet pipe 4; the plurality of detection heads are respectively communicated with the air inlet pipe 4 through branch pipes, and each branch pipe is provided with a valve 5. In the sampling detection process, the valves 5 are opened one by one or the valves 5 are opened simultaneously to realize point-by-point sampling or multipoint mixed sampling so as to detect the gas detector 1, the sampling is convenient and fast, and the efficiency is greatly improved. The invention can realize multi-point position successive sampling or multi-point position mixed sampling, has convenient sampling, greatly improves the sampling efficiency and has lower cost.
Example 1
On the basis of the above structure, in this embodiment, the filter 6 is installed on the intake pipe 4 and/or on the exhaust pipe 3, the filter 6 located on the intake pipe 4 is located between the air pump and the plurality of branch pipes, and the filter 6 is located on the intake pipe 4 at a position between the air pump 2 and the branch pipe closest to the air pump 2. During detection, moisture and dust in the collected sample gas are filtered through the filter 6, so that the situation that the moisture and dust in the sample gas enter the air pump 2 and the gas detector 1 to influence the working performance of the sample gas is avoided, and the working performance of the air pump 2 and the gas detector 1 is ensured.
The filter 6 is made of a conventional material, such as an activated carbon filter, and the detailed structure and principle thereof will not be described herein.
Preferably, the number of the filters 6 may be one, and the filters 6 may be mounted on the gas inlet pipe 4, or may be mounted on the gas outlet pipe 3, and are preferably mounted on the gas inlet pipe 4, so as to prevent moisture and dust in the sample gas from entering the gas pump 2 and the gas detector 1; the filter 6 is installed on the gas outlet tube 3 to prevent only moisture and dust in the sample gas from entering the gas detector 1, but not to prevent moisture and dust in the sample gas from entering the gas pump 2.
In addition, the number of the filters 6 can be two, the two filters 6 are respectively arranged on the air inlet pipe 4 and the air outlet pipe 3, collected sample gas is subjected to secondary filtration, and the working performance of the air pump 2 and the gas detector 1 is guaranteed.
In addition to the above embodiments, it is also possible to install a filter 6 at each detection head to allow detection of the sample gas at the source, but this approach requires multiple filters 6 and is more costly.
Example 2
On the basis of the first embodiment, in the first embodiment, both ends of the air inlet pipe 4 are open, one end of the air inlet pipe is communicated with the air inlet of the air pump 2, the other end of the air inlet pipe is communicated with one end of one of the branch pipes, and one end of the remaining branch pipe is communicated with the position between both ends of the air inlet pipe 4.
Example 3
On the basis of embodiment one, in this embodiment, the one end of intake pipe 4 is uncovered, the other end seals, and its uncovered end communicates with the air inlet of air pump 2, and the one end of many spinal branchs all communicates with the position between the 4 both ends of intake pipe, simple structure, and reasonable in design makes things convenient for quick sample.
The scheme of the second embodiment and the scheme of the third embodiment are parallel schemes, and compared with the scheme of the second embodiment, two ends of the air inlet pipe 4 are both open, so that the material is saved, and the cost is saved.
Except the above embodiment, the air inlet pipe 4 can also adopt a mode that both ends are sealed, and the air inlet of the air pump 2 needs to be communicated with the air inlet pipe 4 through a pipeline at the moment, so that more consumables and higher cost are realized.
Example 4
On the basis of the structure, the air pump 2 and the gas detector 1 are connected with the single chip microcomputer 7 through lines respectively. During detection, the air pump 2 and the gas detector 1 are controlled to work through the single chip microcomputer 7, the automation degree is greatly improved, sampling is convenient, and the sampling efficiency is greatly improved.
Example 5
On the basis of the fourth embodiment, in this embodiment, the valves 5 are preferably electromagnetic valves, and the electromagnetic valves are respectively connected with the single chip microcomputer 7 through lines. During detection, the valve 5 is controlled to be opened one by one or a plurality of valves are controlled to be opened simultaneously through the single chip microcomputer 7, so that point-by-point sampling or multipoint mixed sampling is achieved, the gas detector 1 is used for detection, sampling is convenient and fast, and efficiency is greatly improved.
The electromagnetic valves can be connected with the singlechip 7 through lines and also can be connected in a wireless connection mode.
The valves 5 can also be manually opened, so that the automation degree is low and the detection efficiency is greatly reduced.
Example 6
On the basis of the fourth embodiment, in this embodiment, still include explosion-proof box 8, air pump 2 and singlechip 7 all are located explosion-proof box 8, protection staff's safety, safety in production.
The side wall or the top wall or the bottom wall of the explosion-proof box 8 is respectively provided with a round hole for the air inlet pipe 4 and the air outlet pipe 3 to pass through; in addition, when the electromagnetic valve is connected with the singlechip 7 through a line, the explosion-proof box 8 is also provided with a plurality of threading holes for the line to pass through.
It is also possible to replace the explosion-proof tank 8 with a normal tank, but the safety system is significantly lower than the explosion-proof tank 8.
Example 7
On the basis of the fourth embodiment, in this embodiment, each detection head is sleeved with a dust cap 9, and at least one air inlet is formed in each dust cap 9. The dust cap 9 can prevent dust from entering the detection head and the branch pipe, so that the dust enters the air pump 2 and the gas detector 1 to influence the working performance of the air pump 2 and the gas detector 1, and the normal work of the air pump 2 and the gas detector 1 is ensured.
The invention can realize the timing sampling function by setting the singlechip 7, can realize multipoint successive sampling or multipoint mixed sampling, and can freely set the sampling interval to operate circularly. The device can filter liquid and solid impurities in the detection gas, thereby protecting the gas detector 1 from being damaged.
It should be noted that the air pump (model FUJ-PCV), the gas detector (model AS8800) and the solenoid valve (model ZCT) related to the invention all adopt the prior art, and the components are electrically connected with the singlechip (model TC-SCR), and the control circuit between the singlechip and the components is the prior art.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (8)
1. The utility model provides a be used for online gaseous multiple spot sampling check out test set which characterized in that: the gas detection device comprises a gas detector (1), a gas pump (2) and a plurality of detection heads, wherein a gas outlet of the gas pump (2) is communicated with the gas detector (1) through a gas outlet pipe (3), and a gas inlet of the gas pump is communicated with a gas inlet pipe (4); the detection heads are communicated with the air inlet pipe (4) through branch pipes respectively, and each branch pipe is provided with a valve (5).
2. The apparatus for on-line gas multipoint sampling testing according to claim 1, wherein: the two ends of the air inlet pipe (4) are both open, one end of the air inlet pipe is communicated with the air inlet of the air pump (2), the other end of the air inlet pipe is communicated with one end of one of the branch pipes, and one end of the remaining branch pipe is communicated with the position between the two ends of the air inlet pipe (4).
3. The apparatus for on-line gas multipoint sampling testing according to claim 1, wherein: one end of the air inlet pipe (4) is open, the other end of the air inlet pipe is closed, the open end of the air inlet pipe is communicated with an air inlet of the air pump (2), and one ends of the branch pipes are communicated with the positions between the two ends of the air inlet pipe (4).
4. An apparatus for on-line multi-point sampling of gases detection according to any of claims 1-3, characterized by: the air inlet pipe (4) and/or the air outlet pipe (3) are/is provided with a filter (6), the filter (6) positioned on the air inlet pipe (4) is positioned between the air pump (2) and the branch pipes.
5. An apparatus for on-line multi-point sampling of gases detection according to any of claims 1-3, characterized by: the gas pump is characterized by further comprising a single chip microcomputer (7), and the gas pump (2) and the gas detector (1) are connected with the single chip microcomputer (7) through lines respectively.
6. The apparatus for on-line gas multipoint sampling testing according to claim 5, wherein: the valves (5) are all electromagnetic valves, and the electromagnetic valves are connected with the single chip microcomputer (7) through lines respectively.
7. The apparatus for on-line gas multipoint sampling testing according to claim 5, wherein: the air pump is characterized by further comprising an explosion-proof box (8), wherein the air pump (2) and the single chip microcomputer (7) are located in the explosion-proof box (8).
8. An apparatus for on-line multi-point sampling of gases detection according to any of claims 1-3, characterized by: every it all overlaps and is equipped with dust cap (9) to detect the head, every be equipped with at least one gas inlet on dust cap (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011263976.XA CN112539976A (en) | 2020-11-12 | 2020-11-12 | Be used for gaseous multiple spot sampling test equipment on line |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011263976.XA CN112539976A (en) | 2020-11-12 | 2020-11-12 | Be used for gaseous multiple spot sampling test equipment on line |
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| Publication Number | Publication Date |
|---|---|
| CN112539976A true CN112539976A (en) | 2021-03-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011263976.XA Pending CN112539976A (en) | 2020-11-12 | 2020-11-12 | Be used for gaseous multiple spot sampling test equipment on line |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113341073A (en) * | 2021-06-04 | 2021-09-03 | 徐州虹源环保科技有限公司 | Air pollutant standard exceeding monitoring and warning equipment for electroplating workshop |
| CN116651244A (en) * | 2023-07-18 | 2023-08-29 | 宁波普力丝日化制造有限公司 | Emulsifying device for hair conditioner production |
-
2020
- 2020-11-12 CN CN202011263976.XA patent/CN112539976A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113341073A (en) * | 2021-06-04 | 2021-09-03 | 徐州虹源环保科技有限公司 | Air pollutant standard exceeding monitoring and warning equipment for electroplating workshop |
| CN113341073B (en) * | 2021-06-04 | 2022-02-08 | 徐州虹源环保科技有限公司 | Air pollutant standard exceeding monitoring and warning equipment for electroplating workshop |
| CN116651244A (en) * | 2023-07-18 | 2023-08-29 | 宁波普力丝日化制造有限公司 | Emulsifying device for hair conditioner production |
| CN116651244B (en) * | 2023-07-18 | 2023-11-14 | 宁波普力丝日化制造有限公司 | Emulsifying device for hair conditioner production |
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