CN212432688U - Constant-current air inlet device applied to online monitoring of atmospheric dust in industrial plant - Google Patents
Constant-current air inlet device applied to online monitoring of atmospheric dust in industrial plant Download PDFInfo
- Publication number
- CN212432688U CN212432688U CN202020765489.2U CN202020765489U CN212432688U CN 212432688 U CN212432688 U CN 212432688U CN 202020765489 U CN202020765489 U CN 202020765489U CN 212432688 U CN212432688 U CN 212432688U
- Authority
- CN
- China
- Prior art keywords
- sampling
- air inlet
- head
- constant
- blowing
- 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
Images
Landscapes
- Sampling And Sample Adjustment (AREA)
Abstract
The utility model discloses a constant-current air inlet device applied to online monitoring of atmospheric dust in industrial plants, which comprises a sampling head and a sampling box, wherein the sampling box is provided with a vent hole, the sampling head is fixedly arranged at the vent hole, and the sampling head is also provided with an air inlet hole and a drain hole; the device also comprises a constant current device and a back flushing device; the constant flow device comprises a flow limiting valve, an air meter, a sampling pump and a sampling port; the back-blowing device comprises a back-blowing pump, a pulse valve, a back-blowing port and a back-blowing head. The utility model can realize the constant flow of sample gas, and avoid impacting the sensor; automatic purging can be realized, and the adhesion and blockage of larger floaters in the sampling process are avoided; the volume is small, the weight is light, the installation and the maintenance are convenient, and the point location migration can be conveniently carried out; the sampling head with a rainproof structure is adopted, so that the sampling head can be normally used in rainy days; and a 485 communication mode is adopted, so that the air inlet rate, the back flushing frequency and the like can be adjusted.
Description
Technical Field
The utility model relates to an environmental protection field, concretely relates to be applied to the constant current air inlet unit of atmospheric raise dust on-line monitoring in industrial factory.
Background
Ambient air enters the particle sensor through the constant-current air inlet device, and the particle sensor transmits a measured value to the data processing module and performs corresponding conversion and storage; the display part displays all the measurement parameters; the data transmission module transmits all the measured values to the formulation platform; the existing air inlet equipment can not realize constant flow collection of sample gas, and the sample gas collection is greatly influenced by the wind speed; receive external environment easily, if receive the influence that floats the wadding in the north easily, block up the thief hatch scheduling problem, to the problem that above-mentioned provided, this scheme has provided the constant current air inlet unit who is applied to the atmospheric raise dust on-line monitoring in industrial factory.
Disclosure of Invention
In view of the above-mentioned drawbacks and deficiencies of the prior art, it would be desirable to provide a constant flow air inlet device for online monitoring of airborne dust in industrial plants.
According to the technical scheme provided by the embodiment of the utility model, the constant-current air inlet device applied to the on-line monitoring of the atmospheric dust in the industrial factory comprises a sampling head and a sampling box, wherein the sampling box is provided with a vent hole, the sampling head is fixedly arranged at the vent hole, and the sampling head is also provided with an air inlet hole and a drain hole; the device also comprises a constant current device and a back flushing device;
the constant flow device comprises a flow limiting valve, an air meter, a sampling pump and a sampling port;
the back-blowing device comprises a back-blowing pump, a pulse valve, a back-blowing port and a back-blowing head;
a constant-flow sample gas outlet is formed in one side, far away from the sampling head, of the sampling box, the sampling port is formed in the tube cavity of the sampling head, the sampling port is connected with the constant-flow sample gas outlet through a sampling tube, and the flow limiting valve, the air meter and the sampling pump are sequentially arranged on the sampling tube along the starting end of the sampling tube, namely one end, close to the sampling port;
a clean air inlet is formed in one side, far away from the sampling head, of the sampling box, the back blowing port is formed in the tube cavity of the sampling head, the back blowing port and the clean air inlet are connected through air pipes, and a back blowing pump and a pulse valve are sequentially mounted on the air pipes along the starting end of the air pipes, namely one end, close to the clean air inlet; the back-blowing head is arranged in the sampling head.
The utility model discloses in, restriction valve, air meter, sampling pump, blowback pump and pulse valve are all installed the inside of sampling box.
The utility model discloses in, the quantity of back-blowing head is a plurality of.
In the utility model, the back blowing head is of a horn structure.
The utility model discloses in, clean air entry and constant current sample gas export are seted up on the same side tank wall of sampling box.
In the utility model, the sampling head is umbrella-shaped, the outer side of the bottom of the rod body of the sampling head is also provided with a baffle, and the air inlet is arranged on the side surface of the rod body of the sampling head; the drainage holes are formed in the side face and the bottom of the rod body of the sampling head.
The utility model discloses in, sample connection and blowback are seted up the inside of the body of rod of sampling head just is the form setting side by side.
To sum up, the utility model has the advantages that:
1, monitoring the flow of sample gas in real time, so that the sample gas can enter at a constant flow, and the impact on a sensor is avoided;
2. automatic purging can be realized, and the adhesion and blockage of larger floaters in the sampling process are avoided;
3. the volume is small, the weight is light, the installation and the maintenance are convenient, and the point location migration can be conveniently carried out;
4. the sampling head adopts a rainproof design, and can be normally used in rainy days;
5. and a 485 communication mode is adopted, so that the air inlet rate, the back flushing frequency and the like can be adjusted.
Drawings
Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments made with reference to the following drawings:
fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a gas moving path diagram according to the embodiment.
Reference numbers in the figures: 1. the sampling device comprises a sampling head, a sampling box, a gas inlet, a water outlet, a flow limiting valve, an air meter, a sampling pump, a sampling port, a back-flushing pump, a pulse valve, a back-flushing port, a back-flushing head, a constant-flow sample gas outlet and a clean air inlet, wherein the sampling head is 2, the sampling box is 3, the gas inlet is 4, the water outlet is 5, the flow limiting valve is 6, the air meter is 7, the sampling pump is 8, the back-flushing pump is 9.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant invention and not restrictive of the invention. It should be noted that, for convenience of description, only the portions related to the present invention are shown in the drawings.
It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
As shown in fig. 1, the constant-flow air inlet device applied to online monitoring of airborne dust in an industrial plant area comprises a sampling head 1 and a sampling box 2, wherein the sampling box 2 is provided with an air vent, the sampling head 1 is fixedly installed at the air vent, and the sampling head 1 is further provided with an air inlet 3 and a water outlet 4; the device also comprises a constant current device and a back flushing device;
the constant flow device comprises a flow limiting valve 5, an air meter 6, a sampling pump 7 and a sampling port 8;
the back-blowing device comprises a back-blowing pump 9, a pulse valve 10, a back-blowing port 11 and a back-blowing head 12;
a constant-flow sample gas outlet 13 is formed in one side, far away from the sampling head 1, of the sampling box 2, the sampling port 8 is formed in the tube cavity of the sampling head 1, the sampling port 8 is connected with the constant-flow sample gas outlet 13 through a sampling tube, and the flow limiting valve 5, the air meter 6 and the sampling pump 7 are sequentially installed on the sampling tube along the starting end of the sampling tube, namely one end close to the sampling port 8;
a clean air inlet 14 is formed in one side, far away from the sampling head 1, of the sampling box 2, the back blowing port 11 is formed in the tube cavity of the sampling head 1, the back blowing head 12, the back blowing port 11 and the clean air inlet 14 are connected through an air pipe, and a back blowing pump 9 and a pulse valve 10 are sequentially mounted on the air pipe along the starting end of the air pipe, namely one end close to the clean air inlet 14; the back blowing head 12 is arranged in the sampling head 1, and the back blowing head 12 is of a horn-shaped structure. The number of the blowback heads 12 is several, and referring to fig. 1, the number of the blowback heads 12 may be 4.
As shown in fig. 1, the flow limiting valve 5, the air meter 6, the sampling pump 7, the back-flushing pump 9 and the pulse valve 10 are all installed inside the sampling box 2.
As shown in fig. 1, the clean air inlet 14 and the constant flow sample gas outlet 13 are formed in the same side wall of the sampling box 2.
As shown in fig. 1, the sampling head 1 is umbrella-shaped, a baffle is further arranged at the outer side of the bottom of the rod body of the sampling head 1, and the air inlet 3 is formed in the side surface of the rod body of the sampling head 1; the drainage holes 4 are formed in the side surface and the bottom of the rod body of the sampling head 1. The sampling head 1 adopts a rainproof design and can be normally used in rainy days.
As shown in fig. 1, the sampling port 8 and the back flushing port 11 are arranged inside the rod body of the sampling head 1 and are arranged side by side.
Example (b): referring to fig. 2, the direction of the arrows in fig. 2 is the gas moving path of the sample gas and the clean air;
the sampling process of the device is as follows: the sampling method comprises the steps that sample gas enters a sampling pipe through a sampling head 1 and a sampling port 8, then the sample gas is discharged from a constant-flow sample gas outlet 13 and conveyed to a particle sensor after sequentially passing through a flow limiting valve 5, an air flow meter 6 and a sampling pump 7, wherein the air inlet flow rate of the sample gas can be set through the flow limiting valve 5, the actual sampling air inlet flow rate is monitored through the air flow meter 6, the opening degree of the flow limiting valve 5 is reduced when the flow rate is larger than the set flow rate, and the opening degree of the flow limiting valve 5 is increased when the flow rate is lower than the set value.
The back flushing process comprises the following steps: clean air enters an air pipe through a clean air inlet 14 and a back-blowing pump 9 and then reaches a pulse valve 10, when the air pressure of the entering air reaches a specified pressure, the pulse valve 10 is opened, high-pressure air is conveyed into a back-blowing head 12 in a sampling head 1 through a back-blowing port 11, the clean air is blown out through the back-blowing head 12 to carry out back-blowing on the interior of the sampling head 1, and attachments such as dust particles on the surface of the inner wall of the sampling head 1 are blown away; the sampling pump 7 and the flow limiting valve 5 can be closed as required during back flushing, so that the situation that the back-flushed gas enters the particle sensor to cause interference is avoided.
The device adopts 485 communication to adjust the air inlet rate, the back flushing frequency and the like.
The foregoing description is only exemplary of the preferred embodiments of the invention and is provided for the purpose of illustrating the general principles of the invention. Meanwhile, the scope of the present invention is not limited to the specific combinations of the above-described technical features, and other technical features or equivalent features may be combined arbitrarily without departing from the scope of the present invention. For example, the above features and (but not limited to) technical features having similar functions disclosed in the present invention are mutually replaced to form the technical solution.
Claims (7)
1. The constant-current air inlet device applied to the online monitoring of the atmospheric dust in an industrial factory comprises a sampling head (1) and a sampling box (2), wherein an air vent is formed in the sampling box (2), the sampling head (1) is fixedly installed at the air vent, and an air inlet (3) and a water drain hole (4) are further formed in the sampling head (1); the method is characterized in that: the device also comprises a constant current device and a back flushing device;
the constant flow device comprises a flow limiting valve (5), an air meter (6), a sampling pump (7) and a sampling port (8);
the back-blowing device comprises a back-blowing pump (9), a pulse valve (10), a back-blowing opening (11) and a back-blowing head (12);
a constant-flow sample gas outlet (13) is formed in one side, far away from the sampling head (1), of the sampling box (2), the sampling port (8) is formed in the tube cavity of the sampling head (1), the sampling port (8) is connected with the constant-flow sample gas outlet (13) through a sampling tube, and the flow limiting valve (5), the air meter (6) and the sampling pump (7) are sequentially installed on the sampling tube along the starting end of the sampling tube, namely one end close to the sampling port (8);
a clean air inlet (14) is formed in one side, far away from the sampling head (1), of the sampling box (2), the back blowing port (11) is formed in the tube cavity of the sampling head (1), the back blowing head (12), the back blowing port (11) and the clean air inlet (14) are connected through an air pipe, and a back blowing pump (9) and a pulse valve (10) are sequentially arranged on the air pipe along the starting end of the air pipe, namely one end, close to the clean air inlet (14); the back blowing head (12) is arranged in the sampling head (1).
2. The constant-current air inlet device applied to the on-line monitoring of the atmospheric fugitive dust in the industrial plant area according to claim 1, characterized in that: the flow limiting valve (5), the air meter (6), the sampling pump (7), the back flushing pump (9) and the pulse valve (10) are all installed inside the sampling box (2).
3. The constant-current air inlet device applied to the on-line monitoring of the atmospheric fugitive dust in the industrial plant area according to claim 1, characterized in that: the number of the back blowing heads (12) is a plurality.
4. The constant-current air inlet device applied to the on-line monitoring of the atmospheric fugitive dust in the industrial plant area according to claim 1, characterized in that: the back blowing head (12) is of a horn-shaped structure.
5. The constant-current air inlet device applied to the on-line monitoring of the atmospheric fugitive dust in the industrial plant area according to claim 1, characterized in that: the clean air inlet (14) and the constant flow sample gas outlet (13) are arranged on the same side of the sampling box (2).
6. The constant-current air inlet device applied to the on-line monitoring of the atmospheric fugitive dust in the industrial plant area according to claim 1, characterized in that: the sampling head (1) is umbrella-shaped, a baffle is arranged on the outer side of the bottom of the rod body of the sampling head (1), and the air inlet (3) is formed in the side surface of the rod body of the sampling head (1); the drain holes (4) are formed in the side face and the bottom of the rod body of the sampling head (1).
7. The constant-current air inlet device applied to the on-line monitoring of the atmospheric fugitive dust in the industrial plant area according to claim 1, characterized in that: sampling mouth (8) and blowback (11) are seted up the inside of the body of rod of sampling head (1) just is the form setting side by side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020765489.2U CN212432688U (en) | 2020-05-11 | 2020-05-11 | Constant-current air inlet device applied to online monitoring of atmospheric dust in industrial plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020765489.2U CN212432688U (en) | 2020-05-11 | 2020-05-11 | Constant-current air inlet device applied to online monitoring of atmospheric dust in industrial plant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212432688U true CN212432688U (en) | 2021-01-29 |
Family
ID=74289495
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020765489.2U Active CN212432688U (en) | 2020-05-11 | 2020-05-11 | Constant-current air inlet device applied to online monitoring of atmospheric dust in industrial plant |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212432688U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113358425A (en) * | 2021-06-08 | 2021-09-07 | 陕西省环境科学研究院 | Flare gas discharge gas sampling device and monitoring method based on unmanned aerial vehicle |
| CN117330369A (en) * | 2023-11-24 | 2024-01-02 | 广东广业投资集团有限公司 | Finite space gas sampling monitoring system and sampling monitoring method |
-
2020
- 2020-05-11 CN CN202020765489.2U patent/CN212432688U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113358425A (en) * | 2021-06-08 | 2021-09-07 | 陕西省环境科学研究院 | Flare gas discharge gas sampling device and monitoring method based on unmanned aerial vehicle |
| CN117330369A (en) * | 2023-11-24 | 2024-01-02 | 广东广业投资集团有限公司 | Finite space gas sampling monitoring system and sampling monitoring method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN212432688U (en) | Constant-current air inlet device applied to online monitoring of atmospheric dust in industrial plant | |
| CN106596193A (en) | River way multipoint water quality monitoring apparatus and monitoring method therefor | |
| CN104722340B (en) | artificial aerosol climate box and using method thereof | |
| CN106237739A (en) | A kind of sack cleaner experimental system and experimental technique thereof | |
| CN209447020U (en) | Intelligently realizing explosion-proof pressure difference dust-removing control system | |
| CN108195749A (en) | The dust storm erosion abrasion test device and its test method of Fan blade material | |
| CN109141816B (en) | Variable-air-pressure dam work discharge impact area aeration-atomization characteristic parameter set testing and verifying method | |
| CN109540413B (en) | Special detection equipment and detection method for building door and window | |
| CN108303516A (en) | It is a kind of geotechnique centrifugal field in rainfall and SEA LEVEL VARIATION Work condition analogue device and method | |
| CN211927836U (en) | Atmospheric pollution detection device | |
| CN203719971U (en) | Atmospheric sampling system capable of performing calibration in whole course | |
| CN205942399U (en) | Block dirty load on -line monitoring system that floats | |
| CN205516937U (en) | Energy -conserving dust collector of frequency conversion | |
| CN206656845U (en) | A kind of blowing sand wind tunnel Combined-type portable sand-taped instrument | |
| CN204065106U (en) | A kind of atmosphere dried wet deposition multiparameter on-line continuous automonitor | |
| CN203541052U (en) | Ventilating cabinet capable of indirectly detecting face velocity by using CIT (computer interface technology) | |
| CN206291942U (en) | A kind of blowing type liquid level meter | |
| CN210953810U (en) | Carbon dioxide emission monitoring system based on flue measurement | |
| CN212432687U (en) | Atmosphere TVOC standard exceeding alarm device applied to industrial plant | |
| CN212300439U (en) | Raise dust noise on-line monitoring instrument | |
| CN105784315A (en) | Flow state variable wind erosion in-situ measuring device | |
| CN207114289U (en) | A kind of whirlwind cutting for trace gaseous contaminant sampled measurements and heating de-watering apparatus | |
| CN207396769U (en) | A kind of plough clogging sensor | |
| CN203275151U (en) | Sampler | |
| CN210072112U (en) | A noninterference feels rain sensor for rain gauge |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |