CN219456075U - Flue gas monitoring device - Google Patents

Abstract

The utility model discloses a smoke monitoring device which is used for monitoring smoke in a smoke conveying pipeline and comprises a smoke monitor and a smoke monitoring pipe connected to the smoke conveying pipeline, wherein a smoke inlet end and a smoke outlet end of the smoke monitoring pipe are communicated with the smoke conveying pipeline; the flue gas monitoring device is characterized in that a flue gas filter pipe is arranged on the inner wall of the flue gas monitoring pipe, the flue gas monitor is arranged on the flue gas monitoring pipe, and a monitoring head of the flue gas monitor penetrates through the inner wall of the flue gas monitoring pipe and then stretches into the flue gas filter pipe. The utility model is provided with the flue gas filter pipe, the monitoring head of the flue gas monitor stretches into the flue gas filter pipe, the monitoring head is protected by the flue gas filter pipe, dust is prevented from being adsorbed on the monitoring head, the flue gas monitor does not need to wipe the monitoring head repeatedly like the traditional technology, and the service life of the flue gas monitor is prolonged while the flue gas monitoring precision is ensured.

Description

Flue gas monitoring device

Technical Field

The utility model relates to a monitoring device, in particular to a smoke monitoring device.

Background

In order to monitor the components and the concentration of harmful substances in the smoke, a smoke monitor is installed on a smoke exhaust pipeline, and a monitoring head of the smoke monitor extends into the smoke exhaust pipeline and contacts with the smoke, so that the harmful components and the concentration in the smoke are detected by the smoke monitor.

Because the flue gas contains a large amount of dust, after the monitoring head of flue gas monitor contacted with the flue gas for a long time, the dust can adsorb on the monitoring head, influences the monitoring precision, and serious still probably damages the monitoring head. Therefore, technologies capable of cleaning dust on the monitoring head appear on the market, for example, an utility model patent with application number of CN202123016903.3 discloses a smoke emission detection device, the device utilizes flowing smoke to push the fan blades to rotate so as to drive the brush rod to rotate by arranging the fan blades, the brush rod and other parts in the smoke tube, and the monitoring head is continuously wiped by the rotating brush rod, so that dust can be prevented from being adsorbed on the monitoring head, and monitoring precision is influenced. However, the technology has the defect that the brush rod repeatedly wipes the monitoring head, and the monitoring head is easy to damage in the wiping process. In addition, the brush hair on the brush rod is easy to adhere with dust and difficult to clean.

Disclosure of Invention

The present utility model has been made to solve the above-mentioned problems, and an object of the present utility model is to provide a flue gas monitoring device capable of protecting a monitoring head and preventing dust from being adsorbed onto the monitoring head.

The aim of the utility model is achieved by the following technical scheme: the smoke monitoring device is used for monitoring smoke in a smoke conveying pipeline and comprises a smoke monitor and a smoke monitoring pipe connected to the smoke conveying pipeline, wherein a smoke inlet end and a smoke outlet end of the smoke monitoring pipe are communicated with the smoke conveying pipeline; the flue gas monitoring device is characterized in that a flue gas filter pipe is arranged on the inner wall of the flue gas monitoring pipe, the flue gas monitor is arranged on the flue gas monitoring pipe, and a monitoring head of the flue gas monitor penetrates through the inner wall of the flue gas monitoring pipe and then stretches into the flue gas filter pipe.

In addition, the flue gas monitoring pipe is also connected with a reverse ash removal structure for cleaning dust on the flue gas filter pipe.

Further, the flue gas filter pipe comprises an air inlet pipe and a fixed pipe which are communicated with each other; the utility model discloses a flue gas monitoring system, including the air-supply line, the filter screen all is provided with at the both ends of air-supply line, the upper end of fixed pipe is fixed in the inner wall of flue gas monitoring pipe, the monitoring head of flue gas monitoring appearance runs through behind the fixed pipe stretch into in the air-supply line.

The central axis of the air inlet pipe is parallel to the central axis of the flue gas monitoring pipe, and the fixed pipe is perpendicular to the air inlet pipe.

The reverse ash removal structure comprises a branch pipe, a return pipe, a first electromagnetic valve, a second electromagnetic valve, a third electromagnetic valve and a fourth electromagnetic valve.

The smoke inlet end and the smoke outlet end of the branched pipe are communicated with the smoke monitoring pipe, the fourth electromagnetic valve is arranged on the branched pipe, the second electromagnetic valve and the third electromagnetic valve are arranged on the smoke monitoring pipe, and the first electromagnetic valve is arranged on the return pipe; the second electromagnetic valve and the smoke filtering pipe are both positioned between the smoke inlet end and the smoke outlet end of the branch pipe, and the third electromagnetic valve is arranged on one side close to the smoke outlet end of the smoke monitoring pipe; the smoke inlet end of the return pipe is positioned between the second electromagnetic valve and the smoke filter pipe, and the smoke outlet end of the return pipe is communicated with the smoke conveying pipeline.

The flue gas monitor is installed on the flue gas monitor pipe through the mount pad, the lower surface of mount pad is provided with the bellied sealing plug down, pass through between the lateral wall of flue gas monitor's the monitoring head and flue gas monitor pipe sealing plug.

The sealing plug is in an inverted cone shape.

And a guide plate for guiding the flue gas into the flue gas monitoring pipe is arranged in the flue gas conveying pipeline.

A fan is arranged in the smoke inlet end of the smoke monitoring pipe.

Compared with the prior art, the application has the following beneficial effects:

(1) The utility model is provided with the flue gas filter pipe, the monitoring head of the flue gas monitor stretches into the flue gas filter pipe, the monitoring head is protected by the flue gas filter pipe, dust is prevented from being adsorbed on the monitoring head, the flue gas monitor does not need to wipe the monitoring head repeatedly like the traditional technology, and the service life of the flue gas monitor is prolonged while the flue gas monitoring precision is ensured.

(2) The utility model is provided with the reverse ash removing structure, and the smoke can be repeatedly controlled to enter the air inlet pipe from the two ends of the air inlet pipe respectively by controlling the on-off of the four electromagnetic valves on the reverse ash removing structure, so that the flowing smoke can be utilized to blow down dust on the filter screen at the two ends of the air inlet pipe, and the filter screen is prevented from being blocked.

Additional features of the present application will be set forth in part in the description which follows. Additional features will be set forth in part in the description which follows and in the accompanying drawings, or in part will be apparent to those skilled in the art from the description, or may be learned by the production or operation of the embodiments. The features disclosed in this application may be implemented and realized in the practice or use of the various methods, instrumentalities and combinations of the specific embodiments described below.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiments of the application and together with the description serve to explain the application and do not limit the application. Like reference symbols in the various drawings indicate like elements. Wherein,,

fig. 1 is a top view of the present utility model.

FIG. 2 is a cross-sectional view of a smoke monitor tube.

Fig. 3 is an enlarged schematic view at a in fig. 2.

The reference numerals in the above figures are: 1-smoke pipeline, 2-return pipe, 3-smoke monitoring pipe, 4-first electromagnetic valve, 5-second electromagnetic valve, 6-third electromagnetic valve, 7-fourth electromagnetic valve, 8-branch pipe, 9-smoke monitor, 10-smoke filter pipe, 11-air inlet pipe, 12-fixed pipe, 13-filter screen, 14-mount pad, 15-sealing plug.

Detailed Description

In order to make the present application solution better understood by those skilled in the art, the following description will be made in detail and with reference to the accompanying drawings in the embodiments of the present application, it is apparent that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments herein without making any inventive effort, shall fall within the scope of the present application.

It should be noted that if the terms "first," "second," and the like are referred to in the specification, claims, and drawings of the present application, they are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate in order to describe the embodiments of the present application described herein. Furthermore, if the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

In the present application, if the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal" and the like are referred to, the indicated azimuth or positional relationship is based on that shown in the drawings. These terms are used primarily to better describe the present application and its embodiments and are not intended to limit the indicated device, element or component to a particular orientation or to be constructed and operated in a particular orientation.

Also, some of the terms described above may be used to indicate other meanings in addition to orientation or positional relationships, for example, the term "upper" may also be used to indicate some sort of attachment or connection in some cases. The specific meaning of these terms in this application will be understood by those of ordinary skill in the art as appropriate.

Further, in this application, the terms "mounted," "configured," "provided," "connected," "sleeved," and the like are to be construed broadly if they refer to. For example, it may be a fixed connection, a removable connection, or a unitary construction; may be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements, or components. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.

It should be noted that, in the case of no conflict, the embodiments and features in the embodiments may be combined with each other. The present application will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

Example 1

As shown in fig. 1 to 3, the present embodiment discloses a smoke monitoring device for detecting smoke exhausted from a smoke pipe. The smoke monitoring device comprises a smoke monitor 9 and a smoke monitoring tube 3 connected to the smoke conveying pipeline 1. The smoke inlet end and the smoke outlet end of the smoke monitoring pipe 3 are communicated with the smoke conveying pipeline 1, namely, smoke in the smoke conveying pipeline 1 can enter the smoke monitoring pipe 3 from the smoke inlet end of the smoke monitoring pipe 3, and then returns to the smoke conveying pipeline 1 from the smoke outlet end of the smoke monitoring pipe 3. The flue gas monitor 9 is mounted on the flue gas monitor tube 3, and the monitoring head penetrates through the side wall of the flue gas monitor tube 3 and then stretches into the flue gas monitor tube 3, and when flue gas flows through the flue gas monitor tube 3, the flue gas monitor 9 can monitor the flue gas.

The flue gas conveying pipeline 1 is internally provided with a guide plate (not shown in the figure) for guiding flue gas into the flue gas monitoring pipeline 3, the upper end of the guide plate is inclined to one side opposite to the flue gas conveying direction, and when the flue gas flowing in the flue gas conveying pipeline 1 encounters the guide plate, the guide plate can guide the flue gas into the flue gas monitoring pipeline 3, and of course, the height of the guide plate is not too high so as to prevent the flue gas from normally flowing in the flue gas conveying pipeline 1. The smoke delivery pipeline 1 can be formed by connecting multiple sections of pipelines, and the pipelines are connected through flanges, so that the guide plate can be conveniently installed, and the inside of the smoke delivery pipeline 1 is also conveniently cleaned.

In order to prevent dust in the flue gas from being adsorbed on the monitoring head of the flue gas monitor, as shown in fig. 2 and 3, a flue gas filter pipe 10 is arranged on the inner wall of the flue gas monitor 3, and the monitoring head of the flue gas monitor extends into the flue gas filter pipe 10. The flue gas filter tube 10 plays a role in filtering dust, prevents dust from being adsorbed on a monitoring head of a flue gas monitor to influence detection precision, and plays a role in protecting the monitoring head.

As shown in fig. 3, the fume filter pipe 10 includes an air inlet pipe 11 and a fixed pipe 12 which are communicated with each other. The air inlet pipe 11 is arranged along the flow direction of the flue gas, namely, the central axis of the air inlet pipe 11 is parallel to the central axis of the flue gas monitoring pipe 3, and the fixed pipe 12 is perpendicular to the air inlet pipe 11. When in installation, the upper end of the fixed pipe 12 is fixed on the inner wall of the smoke monitoring pipe 3 by bolts or welding.

When specifically setting up, this flue gas monitoring pipe 3 can divide into the installation section and set up the defeated cigarette section at the installation section both ends, through flange joint between installation section and the defeated cigarette section, and flue gas monitor 9 and flue gas filter tube 10 are located the installation section, and during the installation, first be fixed in flue gas monitoring pipe 3 with flue gas filter tube 10, be connected the installation section with defeated cigarette section again.

The side wall of the flue gas monitoring pipe 3 is provided with a through hole for the monitoring head of the flue gas monitor 9 to pass through, and the position of the flue gas filter pipe 10 corresponds to the through hole. During installation, the flue gas monitor 9 is installed on the flue gas monitor pipe 3 through an installation seat 14, and the monitor head passes through the through hole and the fixed pipe 12 and then stretches into the air inlet pipe 11.

In addition, a sealing plug 15 protruding downwards is arranged on the lower surface of the mounting seat 14, and the sealing plug 15 is made of rubber. During installation, the smoke monitor 9 is firstly installed on the installation seat 14, and the monitoring head of the smoke monitor passes through the central hole on the sealing plug 15, so that the monitoring head is in interference fit with the sealing plug 15. Then install mount pad 14 on flue gas monitor pipe 3 to in making sealing plug 15 plug into the through-hole on the flue gas monitor pipe 3, sealing plug 15 seals the gap between the monitoring head of flue gas monitor 9 and the flue gas monitor pipe 3 lateral wall, prevents that the flue gas from revealing between the monitoring head of flue gas monitor 9 and the lateral wall of flue gas monitor pipe 3. In this embodiment, the sealing plug 15 has an inverted cone shape, so that the sealing effect can be improved well.

The air inlet pipe 11 can filter dust in the flue gas and prevent the dust from being adsorbed on the monitoring head of the flue gas monitor 9. When specifically setting up, all be provided with filter screen 13 at the both ends of this air-supply line 11, in the flue gas enters into air-supply line 11 after the filter screen of one end filters, discharges air-supply line 11 from the other end of air-supply line 11 again, and in this process, the monitoring head of flue gas monitor 9 detects the flue gas that flows through air-supply line 11.

After long-time use, a large amount of dust can be adsorbed on the filter screen 13, and for this purpose, the flue gas monitoring tube 3 is also connected with a reverse ash removal structure for cleaning the dust on the filter screen 13.

As shown in fig. 1, the reverse ash removal structure comprises a branch pipe 8, a return pipe 2, a first electromagnetic valve 4, a second electromagnetic valve 5, a third electromagnetic valve 6 and a fourth electromagnetic valve 7.

When specifically setting up, the advance cigarette end and the play cigarette end of this bleeder 8 all communicate with flue gas monitoring pipe 3, and fourth solenoid valve 7 sets up on bleeder 8, and second solenoid valve 5 and third solenoid valve 6 all set up on flue gas monitoring pipe 3, first solenoid valve 4 set up in on the back flow 2. And, second solenoid valve 5 and flue gas filter tube 10 all are located between the advance cigarette end and the play cigarette end of bleeder 8, and third solenoid valve 6 sets up in being close to the play cigarette end one side of flue gas monitoring tube 3. The smoke inlet end of the return pipe 2 is positioned between the second electromagnetic valve 5 and the smoke filter pipe 10, and the smoke outlet end of the return pipe is communicated with the smoke delivery pipe 1.

For better understanding the application, the working principle of the application will be described further with reference to fig. 1 and 2, during normal monitoring, the second electromagnetic valve 5 and the third electromagnetic valve 6 are opened, the first electromagnetic valve 4 and the fourth electromagnetic valve 7 are closed, at this time, smoke can normally flow through the smoke monitoring tube 3, the smoke enters the air inlet tube 11 from the left end of the air inlet tube 11, and the smoke monitor 9 detects the smoke flowing through the air inlet tube 11. After long-term use, dust can be adsorbed on the filter screen 13 at the left end of the air inlet pipe 11. When the dust on the filter screen 13 needs to be cleaned, the second electromagnetic valve 5 and the third electromagnetic valve 6 are closed, the first electromagnetic valve 4 and the fourth electromagnetic valve 7 are opened, the smoke entering the smoke monitoring pipe 3 flows through the branch pipe 8, then enters the air inlet pipe 11 from the right end of the air inlet pipe 11 and flows back to the smoke conveying pipeline 1 through the return pipe 2, and in the process, the reversely flowing smoke can blow off the dust on the filter screen 13 at the left end of the air inlet pipe 11, so that the ash cleaning effect is achieved. After long-time use in the mode, the filter screen 13 at the right end of the air inlet pipe 11 also adsorbs dust, at the moment, the second electromagnetic valve 5 and the third electromagnetic valve 6 are opened again, the first electromagnetic valve 4 and the fourth electromagnetic valve 7 are closed, as dust on the filter screen 13 at the left end of the air inlet pipe 11 is cleaned, flue gas enters from the left end of the air inlet pipe 11, the dust at the right end of the air inlet pipe 11 is blown down reversely, the two modes are used alternately, so that the dust on the filter screen 13 can be cleaned, and the monitoring process is not interrupted.

Example 2

In this embodiment, a fan (not shown in the figure) is disposed in the smoke inlet end of the smoke monitoring tube 3 on the basis of embodiment 1, and the fan is used to increase the flow rate of the smoke flowing through the smoke monitoring tube 3, so that the dust on the filter screen 13 is blown off better. When the fan is used, the fan can be started within a period of time after the mode is switched, for example, within 30 minutes after the mode is switched, and the fan can be closed after the flue gas on the filter screen 13 is blown off, so that the whole device returns to a normal monitoring state.

It should be noted that all of the features disclosed in this specification, or all of the steps in a method or process disclosed, may be combined in any combination, except mutually exclusive features and/or steps.

In addition, the foregoing detailed description is exemplary, and those skilled in the art, having the benefit of this disclosure, may devise various arrangements that, although not explicitly described herein, are within the scope of the present disclosure. It should be understood by those skilled in the art that the present description and drawings are illustrative and not limiting to the claims. The scope of the utility model is defined by the claims and their equivalents.

Claims (8)

1. The smoke monitoring device is used for monitoring smoke in a smoke conveying pipeline (1) and comprises a smoke monitor (9), and is characterized by further comprising a smoke monitoring pipe (3) connected to the smoke conveying pipeline (1), wherein a smoke inlet end and a smoke outlet end of the smoke monitoring pipe (3) are communicated with the smoke conveying pipeline (1); a smoke filter pipe (10) is arranged on the inner wall of the smoke monitoring pipe (3), the smoke monitor (9) is arranged on the smoke monitoring pipe (3), and a monitoring head of the smoke monitor (9) penetrates through the inner wall of the smoke monitoring pipe (3) and then stretches into the smoke filter pipe (10);

in addition, the flue gas monitoring pipe (3) is also connected with a reverse ash removal structure for removing dust on the flue gas filter pipe (10).

2. The flue gas monitoring device according to claim 1, wherein the flue gas filter tube (10) comprises an air inlet tube (11) and a fixed tube (12) in communication with each other; the two ends of the air inlet pipe (11) are respectively provided with a filter screen (13), the upper end of the fixed pipe (12) is fixed on the inner wall of the smoke monitoring pipe (3), and the monitoring head of the smoke monitor (9) penetrates through the fixed pipe (12) and then stretches into the air inlet pipe (11).

3. The flue gas monitoring device according to claim 2, wherein the central axis of the air inlet pipe (11) is parallel to the central axis of the flue gas monitoring pipe (3), and the fixed pipe (12) is perpendicular to the air inlet pipe (11).

4. A flue gas monitoring device according to claim 3, wherein the reverse ash removal structure comprises a branch pipe (8), a return pipe (2), a first solenoid valve (4), a second solenoid valve (5), a third solenoid valve (6) and a fourth solenoid valve (7);

the smoke inlet end and the smoke outlet end of the branch pipe (8) are communicated with the smoke monitoring pipe (3), the fourth electromagnetic valve (7) is arranged on the branch pipe (8), the second electromagnetic valve (5) and the third electromagnetic valve (6) are arranged on the smoke monitoring pipe (3), and the first electromagnetic valve (4) is arranged on the return pipe (2); the second electromagnetic valve (5) and the smoke filtering pipe (10) are both positioned between the smoke inlet end and the smoke outlet end of the branch pipe (8), and the third electromagnetic valve (6) is arranged on one side close to the smoke outlet end of the smoke monitoring pipe (3); the smoke inlet end of the return pipe (2) is positioned between the second electromagnetic valve (5) and the smoke filter pipe (10), and the smoke outlet end of the return pipe is communicated with the smoke conveying pipe (1).

5. The smoke monitoring device according to claim 1, characterized in that the smoke monitor (9) is mounted on the smoke monitor tube (3) through a mounting seat (14), a sealing plug (15) protruding downwards is arranged on the lower surface of the mounting seat (14), and the smoke monitor (9) is sealed between the monitoring head and the side wall of the smoke monitor tube (3) through the sealing plug (15).

6. A smoke monitoring device according to claim 5, characterised in that the sealing plug (15) is of inverted cone shape.

7. The smoke monitoring device according to claim 1, characterized in that a baffle plate is arranged in the smoke delivery pipe (1) for guiding smoke into the smoke monitoring pipe (3).

8. The smoke monitoring device according to claim 1, characterized in that a fan is arranged in the smoke inlet end of the smoke monitoring tube (3).