CN212693732U

CN212693732U - Zero calibration cleaning device based on PID method volatile organic compounds on-line monitoring equipment

Info

Publication number: CN212693732U
Application number: CN202022028779.1U
Authority: CN
Inventors: 田耘; 吕俊鹏; 赵金宝; 黄贤文
Original assignee: Shenzhen Maikesi Environmental Protection Technology Co ltd
Current assignee: Shenzhen Maikesi Environmental Protection Technology Co ltd
Priority date: 2020-09-16
Filing date: 2020-09-16
Publication date: 2021-03-12
Anticipated expiration: 2030-09-16

Abstract

The utility model provides a zero calibration belt cleaning device based on PID method volatile organic compounds on-line monitoring equipment, include: a PID detector; the filter tank body is filled with activated carbon particles, the bottom of the filter tank body is provided with a filter air inlet, and the top of the filter tank body is provided with a filter air outlet; the gas inlet pipeline is provided with a first valve body and is communicated with the gas outlet of the filter in a break-and-break manner through the first valve body; and the air outlet of the air outlet pipeline is communicated with the atmosphere, and the air inlet of the air outlet pipeline is communicated with the outlet of the PID detector. The activated carbon is used for replacing conventional oxygen or nitrogen as a cleaning object, zero calibration cleaning of the PID monitor for inorganically discharged flue gas is realized, and the technical problem that the PID monitor for inorganically discharged flue gas lacks a zero calibration cleaning device is solved.

Description

Zero calibration cleaning device based on PID method volatile organic compounds on-line monitoring equipment

Technical Field

The utility model relates to a volatile organic compounds on-line monitoring equipment technical field especially relates to a calibration belt cleaning device at zero point based on PID method volatile organic compounds on-line monitoring equipment.

Background

The detection limit of the PID monitor for monitoring the VOC is 0.005PPM, the zero calibration of the equipment and the cleaning of the detector are very important, and the realization of the automatic zero calibration and the automatic cleaning of the detector is more critical for the online monitoring equipment. The PID detector generally used for safety monitoring emphasizes the accident condition (namely high concentration is alarm), and generally adopts an air mark or nitrogen gas to mark. The PID monitor for the unorganized exhaust smoke cannot use air or nitrogen for zero calibration and cleaning, and the zero calibration cleaning device for the PID monitor for the unorganized exhaust smoke is provided to realize calibration and cleaning of a specific monitor, which is a problem to be solved by those skilled in the art.

SUMMERY OF THE UTILITY MODEL

The utility model provides a calibration belt cleaning device at zero point based on PID method volatile organic compounds on-line monitoring equipment to at least part solves among the prior art technical problem that the PID monitor of unorganized emission flue gas lacks calibration belt cleaning device at zero point.

In order to solve the technical problem, the utility model provides a calibration belt cleaning device at zero point based on PID method volatile organic compounds on-line monitoring equipment, include:

a PID detector;

the filter tank body is filled with activated carbon particles, the bottom of the filter tank body is provided with a filter air inlet, and the top of the filter tank body is provided with a filter air outlet;

the gas inlet pipeline is provided with a first valve body and is communicated with the gas outlet of the filter in a break-and-break manner through the first valve body;

and the air outlet of the air outlet pipeline is communicated with the atmosphere, and the air inlet of the air outlet pipeline is communicated with the outlet of the PID detector.

Further, still include:

and the circulating pipeline is provided with a recovery port, the air inlet of the circulating pipeline is communicated with the outlet of the PID detector, and the air outlet of the circulating pipeline is communicated with the recovery port.

Furthermore, a second valve body is arranged on the air outlet pipeline and communicated with the recovery port in a break-and-break mode through the second valve body.

Further, the second valve body is a three-way valve.

Further, the first valve body is a three-way valve.

Further, the filtering tank body is a sealing tank.

The utility model provides a calibration belt cleaning device at zero point based on PID method volatile organic compounds on-line monitoring equipment is provided with the filtration jar body, it has the activated carbon granule to filter jar internal packing, realizes calibration at zero point and washing through the activated carbon, utilizes the activated carbon to replace conventional oxygen or nitrogen gas and does the washing thing, has realized that the calibration at zero point of the PID monitor of unorganized emission flue gas washs, and the PID monitor of having solved unorganized emission flue gas lacks calibration belt cleaning device at zero point's technical problem.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic structural diagram of a specific embodiment of a zero calibration cleaning apparatus provided by the present invention;

fig. 2 is a schematic structural diagram of another embodiment of the zero calibration cleaning device provided by the present invention.

Description of reference numerals:

1-PID detector 2-filtering tank 3-active carbon particles 4-gas inlet pipe 5-gas outlet pipe

6-first valve body 7-circulation conduit 8-second valve body.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.

Referring to fig. 1, fig. 1 is a schematic structural diagram of a zero calibration cleaning device according to an embodiment of the present invention.

In a specific embodiment, the utility model provides a based on PID method volatile organic compounds on-line monitoring equipment's zero calibration belt cleaning device especially is used for the zero calibration of the PID monitor of inorganization emission flue gas to wash, and it should be understood that PID detector 1 is current product, and its structure and theory of operation are prior art. The zero calibration cleaning device comprises a PID detector 1, a filtering tank body 2, an air inlet pipeline 4 and an air outlet pipeline 5. The filter tank body 2 is filled with active carbon particles 3, the bottom of the filter tank body 2 is provided with a filter air inlet, and the top of the filter tank body is provided with a filter air outlet; the air inlet of the air inlet pipeline 4 is communicated with a gas source to be detected, the air outlet of the air inlet pipeline 4 is communicated with the inlet of the PID detector 1, and the air inlet pipeline 4 is provided with a first valve body 6 and is communicated with the air outlet of the filter in a break-and-break manner through the first valve body 6; the air outlet of the air outlet pipeline 5 is communicated with the atmosphere, and the air inlet of the air outlet pipeline is communicated with the outlet of the PID detector 1.

Specifically, the first valve body 6 is a three-way valve, one port of the three-way valve is communicated with a pipeline communicated with the PID detector 1, the second port is communicated with a pipeline communicated with a gas source to be detected, and the third port is communicated with a pipeline communicated with a filter.

The zero point calibration and cleaning effect of the device is good, but the active carbon filter is always in contact with air, so that the active carbon failure period is short, the field maintenance is time-consuming and labor-consuming, and the device can be further improved on the basis.

As shown in fig. 2, on the basis of the above specific embodiment, the apparatus further includes a circulation pipeline 7, a recovery opening is opened on the filter tank body 2, an air inlet of the circulation pipeline 7 is communicated with an outlet of the PID detector 1, an air outlet of the circulation pipeline 7 is communicated with the recovery opening, and the filter tank body 2 is a sealed tank. Therefore, the filtering and cleaning gas is in closed circulation with the gas in the pipeline, the pressure of the activated carbon filter can be obviously reduced, the chance that the activated carbon contacts the outside air is avoided, and the service life of the activated carbon filter is prolonged.

The gas outlet pipeline 5 is provided with a second valve body 8, the second valve body 8 is communicated with the recovery port in a break-make manner, and the second valve body 8 is a three-way valve.

In the embodiment, the utility model provides a zero calibration belt cleaning device based on PID method volatile organic compounds on-line monitoring equipment is provided with and filters jar body 2, filter jar internal 2 intussuseption and be filled with activated carbon particle 3, realize zero calibration and washing through the activated carbon, utilize activated carbon to replace conventional oxygen or nitrogen gas and do the washing thing, realized that the zero calibration of the PID monitor of inorganization emission flue gas washs, the PID monitor of having solved inorganization emission flue gas lacks zero calibration belt cleaning device's technical problem.

It will be apparent to those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims and their equivalents, the present invention is also intended to include such modifications and variations.

Claims

1. The utility model provides a calibration belt cleaning device at zero point based on PID method volatile organic compounds on-line monitoring equipment which characterized in that includes:

a PID detector (1);

the filter tank comprises a filtering tank body (2), wherein activated carbon particles (3) are filled in the filtering tank body (2), the bottom of the filtering tank body (2) is provided with a filter air inlet, and the top of the filtering tank body is provided with a filter air outlet;

the gas inlet pipeline (4) is communicated with a gas source to be detected, the gas outlet of the gas inlet pipeline (4) is communicated with the inlet of the PID detector (1), and a first valve body (6) is arranged on the gas inlet pipeline (4) and is communicated with the gas outlet of the filter in an on-off manner through the first valve body (6);

and the air outlet of the air outlet pipeline (5) is communicated with the atmosphere, and the air inlet of the air outlet pipeline is communicated with the outlet of the PID detector (1).

2. The zero calibration cleaning apparatus of claim 1, further comprising:

the recycling device comprises a circulating pipeline (7), wherein a recycling opening is formed in the filtering tank body (2), an air inlet of the circulating pipeline (7) is communicated with an outlet of the PID detector (1), and an air outlet of the circulating pipeline (7) is communicated with the recycling opening.

3. The zero calibration cleaning device according to claim 2, wherein a second valve body (8) is disposed on the air outlet pipe (5), and the air outlet pipe is in on-off communication with the recovery port through the second valve body (8).

4. Zero calibration cleaning device according to claim 3, characterized in that the second valve body (8) is a three-way valve.

5. Zero calibration cleaning device according to claim 1, characterized in that the first valve body (6) is a three-way valve.

6. Zero calibration cleaning device according to any of claims 1-5, characterized in that the filter tank (2) is a sealed tank.