CN219348332U

CN219348332U - Petrochemical waste gas sampling device

Info

Publication number: CN219348332U
Application number: CN202223541537.8U
Authority: CN
Inventors: 马兴忠; 杨维维; 李耀永
Original assignee: Xinjiang Fanlin Instrument Co ltd
Current assignee: Xinjiang Fanlin Instrument Co ltd
Priority date: 2022-12-29
Filing date: 2022-12-29
Publication date: 2023-07-14
Anticipated expiration: 2032-12-29

Abstract

The utility model relates to the field of sampling devices and discloses a sampling device for petrochemical waste gas, which effectively solves the problem that the filter is blocked possibly due to adhesion between impurities and the filter after the impurities with viscosity are adhered to the filter for cooling and solidification at present.

Description

Petrochemical waste gas sampling device

Technical Field

The utility model belongs to the field of sampling devices, and particularly relates to a sampling device for petrochemical waste gas.

Background

According to the patent document with the publication number of CN212513880U, the utility model is named as a petrochemical waste gas sampling device, and the specification of the patent document is as follows: a pipeline is arranged between the filter and the second control valve and is connected to the air storage tank, a fourth control valve is arranged on the connecting pipeline, the control valve is also an electromagnetic valve, and the control switch is arranged on the control panel. For the air storage tank, one side of the clean air source interface is internally provided with a one-way exhaust valve, the clean air source is injected through the clean air source interface, and then the one-way exhaust valve plays a role in non-return and stores pressure in the air storage tank. When the cleaning back-blowing operation is executed, the fourth control valve is opened, the continuously injected cleaning gas is blown to the filter and the probe at a certain flow rate, and the cleaning effect is different when the flow rates are different, so that the cleaning effect of the probe and the filter can be well achieved. The clean gas source may be a pressurized cylinder stack flushed with nitrogen, but the following drawbacks still exist:

in petrochemical waste gas, some impurities have viscosity, and after the impurities with viscosity are adhered to a filter for cooling and solidifying, the impurities are adhered to the filter, and the impurities adhered to the filter can not be cleaned during back blowing, so that the filter can be blocked after excessive accumulation.

Disclosure of Invention

Aiming at the situation, in order to overcome the defects of the prior art, the utility model provides the petrochemical waste gas sampling device, which effectively solves the problem that the filter is blocked due to adhesion between impurities and the filter after the impurities with viscosity are adhered to the filter for cooling and solidifying at present.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the sampling device for petrochemical waste gas comprises a machine body, wherein a sampling probe is arranged on one side of the machine body, a communicating pipe is arranged on the other side of the machine body, a switch valve is arranged on the communicating pipe, a suction pump is arranged at one end of the communicating pipe, and a recoil assembly is arranged in the machine body;

the recoil assembly comprises an inner tube arranged in the machine body, two ends of the inner tube are respectively communicated with the sampling probe and the communicating tube, and a heating coil is arranged on the outer wall of the inner tube.

Preferably, the inner part of the inner tube is provided with a first filter plate, one side of the first filter plate, which is close to the communicating pipe, is provided with a second filter plate, and one side of the second filter plate, which is close to the communicating pipe, is provided with a third filter plate.

Preferably, the aperture of the filter hole on the first filter plate, the aperture of the filter hole on the second filter plate and the aperture of the filter hole on the third filter plate are sequentially reduced.

Preferably, an air inlet pipe is arranged at one side of the top end of the machine body, which is close to the sampling probe, and an air inlet fan is arranged on the air inlet pipe.

Preferably, a reverse punching hole is formed in one side, close to the communicating pipe, of the top end of the inner pipe, a separation pipe is arranged at the top end of the reverse punching hole, and the top end of the separation pipe is located above the machine body.

Preferably, the communicating holes are uniformly formed in the separation tube, the communicating holes are located between the inner tube and the machine body, a stop block is movably mounted in the separation tube, the outer wall of the stop block is tightly attached to the inner wall of the separation tube, a spring is mounted at the top end of the stop block, and the top end of the spring is fixedly connected with the inner top wall of the separation tube.

Preferably, a pull rod is arranged at the top end of the stop block, the pull rod penetrates through the top end of the separation tube, and a pull plate is arranged at the top end of the pull rod.

Compared with the prior art, the utility model has the beneficial effects that:

(1) According to the utility model, when sampling is carried out, after the heating coil is started, sampling gas enters the machine body to be filtered and preheated, and meanwhile, the temperature inside the inner tube is higher, so that the sticky impurities are prevented from being solidified on the filter plate, and the sticky impurities are conveniently removed later;

(2) After the novel air inlet fan is started, air is driven to enter between the machine body and the inner tube for heating, and then the air is introduced into the inner tube, so that hot air flows from one side, close to the communicating tube, of the third filter plate towards one side of the sampling probe, hot air flow recoil is carried out on each filter plate, and therefore the cleaning effect is improved.

Drawings

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.

In the drawings:

FIG. 1 is a schematic diagram of a petrochemical waste gas sampling device;

FIG. 2 is a schematic view of the internal structure of the machine body of the present utility model;

FIG. 3 is an enlarged view of the utility model at A in FIG. 2;

in the figure: 1. a body; 2. a sampling probe; 3. a communicating pipe; 4. a switch valve; 5. a recoil assembly; 501. an inner tube; 502. an air inlet pipe; 503. an air intake fan; 504. punching reversely; 505. a partition pipe; 506. a communication hole; 507. a stop block; 508. a pull rod; 509. pulling a plate; 510. a spring; 6. a heating coil; 7. a first filter plate; 8. a second filter plate; 9. and a third filter plate.

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.

1-3, the utility model comprises a machine body 1, wherein a sampling probe 2 is arranged on one side of the machine body 1, a communicating pipe 3 is arranged on the other side of the machine body 1, a switching valve 4 is arranged on the communicating pipe 3, a suction pump is arranged at one end of the communicating pipe 3, and a recoil assembly 5 is arranged in the machine body 1;

the recoil assembly 5 is including installing in the inside inner tube 501 of organism 1, the both ends of inner tube 501 are linked together with sampling probe 2 and communicating pipe 3 respectively, install heating coil 6 on the outer wall of inner tube 501, the internally mounted of inner tube 501 has first filter 7, first filter 7 is close to one side of communicating pipe 3 and installs second filter 8, second filter 8 is close to one side of communicating pipe 3 and install third filter 9, the filtration pore diameter on first filter 7, the filtration pore diameter on second filter 8, the filtration pore diameter on third filter 9 reduces in proper order, during the sampling, heating coil 6 opens the back, the inside filtration of sample gas entering organism 1 and accomplish the preheating, make inner tube 501 inside temperature higher simultaneously, thereby avoid having sticky impurity to solidify on the filter plate, the convenience is followed to have sticky impurity to get rid of.

An air inlet pipe 502 is arranged on one side, close to the sampling probe 2, of the top end of the machine body 1, an air inlet fan 503 is arranged on the air inlet pipe 502, a reverse punching hole 504 is formed in one side, close to the communicating pipe 3, of the top end of the inner pipe 501, a separation pipe 505 is arranged on the top end of the reverse punching hole 504, a communication hole 506 is uniformly formed in the separation pipe 505, the communication hole 506 is arranged between the inner pipe 501 and the machine body 1, a baffle 507 is movably arranged in the separation pipe 505, the outer wall of the baffle 507 is tightly attached to the inner wall of the separation pipe 505, a spring 510 is arranged on the top end of the baffle 507, the top end of the spring 510 is fixedly connected with the inner top wall of the separation pipe 505, a pull rod 508 is arranged on the top end of the baffle 507, the pull rod 508 penetrates through the top end of the separation pipe 505, a pull plate 509 is arranged on the top end of the pull rod 508, after the air inlet fan 503 is started, air is driven to enter the machine body 1 and the inner pipe 501 to be heated, and then is introduced into the inner pipe 501, so that hot air flows from one side, close to the communicating pipe 3, close to the side of the sampling probe 2, and the hot air flows towards the side of the third filter plate 9, and the filter plate is recoiled, thereby the cleaning effect is improved.

Working principle: when the device is used, the suction pump is started, the switch valve 4 is opened, the sampling gas is driven to enter the machine body 1 for pretreatment, the sampling gas is continuously filtered through the first filter plate 7, the second filter plate 8 and the third filter plate 9, so that sticky impurities are adhered to the surface of the filter plate, when the sampling gas enters, the heating coil 6 is electrified to heat the inside of the inner tube 501, the temperature inside the inner tube 501 is higher, the sticky impurities are prevented from being solidified on the filter plate, and the sticky impurities are conveniently removed later;

when cleaning is performed, the switch valve 4 is closed, the air inlet fan 503 is opened, so that external air is driven to enter between the inner pipe 501 and the machine body 1, at this time, the heating coil 6 heats the entering air, after a period of heating, the stop block 507 is moved upwards, so that the communication hole 506 is opened, at this time, under the action of the air inlet fan 503, the heated air flows from one side of the third filter plate 9, which is close to the communication pipe 3, towards one side of the sampling probe 2, and hot air flow recoil is performed on each filter plate, so that the cleaning effect is improved.

Claims

1. The utility model provides a petrochemical waste gas's sampling device, includes organism (1), its characterized in that: a sampling probe (2) is arranged on one side of the machine body (1), a communicating pipe (3) is arranged on the other side of the machine body (1), a switch valve (4) is arranged on the communicating pipe (3), a suction pump is arranged at one end of the communicating pipe (3), and a recoil assembly (5) is arranged in the machine body (1);

the recoil assembly (5) comprises an inner tube (501) arranged in the machine body (1), two ends of the inner tube (501) are respectively communicated with the sampling probe (2) and the communicating tube (3), and a heating coil (6) is arranged on the outer wall of the inner tube (501).

2. The petrochemical waste gas sampling device according to claim 1, wherein: the inner tube (501) is internally provided with a first filter plate (7), one side of the first filter plate (7) close to the communicating pipe (3) is provided with a second filter plate (8), and one side of the second filter plate (8) close to the communicating pipe (3) is provided with a third filter plate (9).

3. A petrochemical waste gas sampling device according to claim 2, wherein: the pore diameters of the filter holes on the first filter plate (7), the second filter plate (8) and the third filter plate (9) are sequentially reduced.

4. The petrochemical waste gas sampling device according to claim 1, wherein: an air inlet pipe (502) is arranged at one side, close to the sampling probe (2), of the top end of the machine body (1), and an air inlet fan (503) is arranged on the air inlet pipe (502).

5. The petrochemical waste gas sampling device according to claim 1, wherein: a reverse punching hole (504) is formed in one side, close to the communicating pipe (3), of the top end of the inner pipe (501), a separation pipe (505) is arranged at the top end of the reverse punching hole (504), and the top end of the separation pipe (505) is located above the machine body (1).

6. The petrochemical waste gas sampling device according to claim 5, wherein: the utility model discloses a separator, including inner tube (501), inner wall, baffle, spring (510) are installed on the top of baffle (507), even communication hole (506) have been seted up on the baffle (505), communication hole (506) are located between inner tube (501) and organism (1), the inside movable mounting of baffle (505) has baffle (507), the outer wall of baffle (507) is hugged closely with the inner wall of baffle (505), spring (510) top and the interior roof fixed connection of baffle (505).

7. The petrochemical waste gas sampling device according to claim 6, wherein: the pull rod (508) is installed at the top of dog (507), and pull rod (508) runs through to the top of separating pipe (505), and arm-tie (509) is installed at the top of pull rod (508).