CN202362174U - Sampling device of gas detector - Google Patents
Sampling device of gas detector Download PDFInfo
- Publication number
- CN202362174U CN202362174U CN 201120465781 CN201120465781U CN202362174U CN 202362174 U CN202362174 U CN 202362174U CN 201120465781 CN201120465781 CN 201120465781 CN 201120465781 U CN201120465781 U CN 201120465781U CN 202362174 U CN202362174 U CN 202362174U
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- differential pressure
- module
- sampling
- sampling channel
- gas
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Abstract
The utility model provides a sampling device of a gas detector. The sampling device includes a sampling passage, a gas pump, a flow acquisition sensor module, a microprocessor module and an alarming module, wherein the flow acquisition sensor module is arranged in the sampling passage and adopts a differential pressure sensor; distance from the differential pressure sensor to the upper passage wall of the sampling passage is smaller than the distance from the differential pressure sensor to the lower passage wall of the sampling passage; the microprocessor module is connected with the flow acquisition sensor module; the alarming module is connected with the microprocessor module; and the alarming module includes a buzzer or/and an indicating lamp. The sampling device of the gas detector has the advantages of scientific design, simplicity in use, sensitive reaction, manual labor saving and timely alarming.
Description
Technical field
The utility model relates to a kind of gas detecting instrument, specifically, has related to a kind of gas detecting instrument sampling apparatus.
Background technology
Along with industrialized development, the harm of inflammable gas and harmful gas etc. has become the problem that people have to face in daily production and life, and for fear of the generation of gas leakage accidents, gas detecting instrument is essential.Gas sampling passage and air pump are the vitals of gas detecting instrument; But in the gas detecting instrument course of work; Owing to can contain impurity such as steam, dust in the object gas; These impurity can cause the obstruction of air pump or sampling channel, cause the sampling channel Traffic Anomaly, thus the testing result of having a strong impact on.At present, only depend on the ruuning situation of human perception air pump or sampling channel not overcome the above problems effectively, and labor intensive, testing result is inaccurate simultaneously.In order to solve the problem of above existence, people are seeking a kind of desirable technical solution always.
Summary of the invention
The purpose of the utility model is the deficiency to prior art, thus a kind of design science is provided, use simple, be quick on the draw, save manpower and report to the police gas detecting instrument sampling apparatus timely.
To achieve these goals; The technical scheme that the utility model adopted is: a kind of gas detecting instrument sampling apparatus; Comprise sampling channel, air pump, flow collection sensor assembly, microprocessor module and alarm module, wherein, said flow collection sensor assembly is arranged in the said sampling channel; Said microprocessor module is connected with said flow collection sensor assembly, and said alarm module is connected with said microprocessor module.
Based on above-mentioned, said flow collection sensor assembly adopts differential pressure pick-up, and the distance of said differential pressure pick-up and said sampling channel upper channel wall is less than the distance of said differential pressure pick-up and said sampling channel lower channel wall.
Based on above-mentioned, said alarm module comprises hummer or/and pilot lamp.
The relative prior art of the utility model has substantive distinguishing features and progress; Specifically; This gas detecting instrument sampling apparatus is set up the flow collection sensor assembly in the sampling channel of original gas detecting instrument, increased microprocessor module and alarm module again, realizes the automatic detection and the warning of gas flow in the sampling channel; Simultaneously; Utilize differential pressure pick-up that the stream pressure in the sampling channel is detected, so that judge the operation conditions of sampling channel according to the variation of stream pressure, it has design science, it is simple to use, be quick on the draw, save manpower and the advantage timely of reporting to the police.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Fig. 2 is that the position of said sampling channel and said differential pressure pick-up concerns synoptic diagram.
Embodiment
Through embodiment, the technical scheme of the utility model is done further detailed description below.
As depicted in figs. 1 and 2, a kind of gas detecting instrument sampling apparatus, it comprises sampling channel 1, air pump, flow collection sensor assembly, microprocessor module and alarm module; Wherein, Said flow collection sensor assembly is arranged in the said sampling channel 1; Said flow collection sensor assembly adopts differential pressure pick-up 2, and the distance of said differential pressure pick-up 2 and said sampling channel upper channel wall is less than the distance of said differential pressure pick-up 2 with said sampling channel lower channel wall; Said microprocessor module is connected with said differential pressure pick-up 2, so that the gas differential pressure of gathering in the sampling channel 1 changes, and changes the variation of judging flow by pressure reduction; Said alarm module is connected with said microprocessor module, and wherein, said alarm module can only adopt hummer as type of alarm, perhaps only adopts pilot lamp as type of alarm, also can adopt hummer and pilot lamp as type of alarm simultaneously.
As shown in Figure 2, when the air communication in the sampling channel 1 is crossed two passages of differential pressure pick-up 2 upper and lowers, because the two internal diameter is different; So the stream pressure that 2 two faces of differential pressure pick-up receive is also different, the size of differential pressure and gas flow have definite numerical relation, and flow is directly proportional with the square root of differential pressure; When flow is big; Differential pressure is just big, flow hour, and differential pressure is just little.
During concrete the use, said differential pressure pick-up 2 is arranged in the said sampling channel 1, is used to gather the gas differential pressure signal in the sampling channel 1; Said microprocessor module is connected with said differential pressure pick-up 2, is used to receive said gas differential pressure signal, and said gas differential pressure signal is analyzed and compared, and determines whether to send alerting signal; Said microprocessor module inside is provided with the normality threshold scope in advance; The sampling channel gas flow is normal, and the signal that collects does not send alerting signal in said normality threshold scope; The sampling channel gas flow is undesired; The signal that collects then sends alerting signal and gives alarm module not in the normality threshold scope, and said alarm module is reported to the police immediately; After alarm module is reported to the police, can make people find that in time gas flow is unusual in the sampling channel, so that the investigation fault; If the air pump problem can be keeped in repair cleaning to air pump, be beneficial to the serviceable life that prolongs air pump.
Should be noted that at last: above embodiment only in order to the explanation the utility model technical scheme but not to its restriction; Although with reference to preferred embodiment the utility model has been carried out detailed explanation, the those of ordinary skill in affiliated field is to be understood that: still can make amendment to the embodiment of the utility model perhaps is equal to replacement to the part technical characterictic; And not breaking away from the spirit of the utility model technical scheme, it all should be encompassed in the middle of the technical scheme scope that the utility model asks for protection.
Claims (3)
1. gas detecting instrument sampling apparatus; Comprise sampling channel and air pump; It is characterized in that: it also comprises flow collection sensor assembly, microprocessor module and alarm module, and wherein, said flow collection sensor assembly is arranged in the said sampling channel; Said microprocessor module is connected with said flow collection sensor assembly, and said alarm module is connected with said microprocessor module.
2. gas detecting instrument sampling apparatus according to claim 1; It is characterized in that: said flow collection sensor assembly adopts differential pressure pick-up, and the distance of said differential pressure pick-up and said sampling channel upper channel wall is less than the distance of said differential pressure pick-up and said sampling channel lower channel wall.
3. gas detecting instrument sampling apparatus according to claim 1 and 2 is characterized in that: said alarm module comprises hummer or/and pilot lamp.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120465781 CN202362174U (en) | 2011-11-22 | 2011-11-22 | Sampling device of gas detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120465781 CN202362174U (en) | 2011-11-22 | 2011-11-22 | Sampling device of gas detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202362174U true CN202362174U (en) | 2012-08-01 |
Family
ID=46573353
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120465781 Expired - Lifetime CN202362174U (en) | 2011-11-22 | 2011-11-22 | Sampling device of gas detector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202362174U (en) |
-
2011
- 2011-11-22 CN CN 201120465781 patent/CN202362174U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 450001 Zhengzhou high tech Development Zone, Henan, Cedar Road, No. 169 Patentee after: Hanwei Technology Group Limited by Share Ltd Address before: 450001 Zhengzhou high tech Development Zone, Henan, Cedar Road, No. 169 Patentee before: Henan Hanwei Electronics Co., Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120801 |
|
| CX01 | Expiry of patent term |