An adjustable flange and a smoke dust instrument compatible with the same

Abstract

The application discloses a kind of adjustable flanges, including the first flange piece that can be connected with flue and the second flange piece that can be connected with dust instrument;The first flange piece can slide relative to the second flange piece, and the first flange piece is provided with the first optical path channel that can be connected to the flue in, the second flange piece is provided with the second optical path channel that can be connected to the dust instrument in;The first optical path channel and the second optical path channel are interconnected to form optical path adjustment channel, and the guide axis of the first optical path channel and the guide axis of the second optical path channel are parallel to each other;It also includes optical path adjustment component, and the optical path adjustment component is connected with the first flange piece and the second flange piece respectively;The optical path adjustment component can fix the relative position of the first flange piece and the second flange piece, to adjust the length of optical path adjustment channel.The application also provides a kind of application the compatibility of the adjustable flange smoke dust instrument, so that smoke dust instrument can be matched with other flue installation except the diameter corresponding with fixed optical path.

Description

TECHNICAL FIELD

[0001] The present application relates to a smoke detection device, in particular to a flange with adjustable length and a smoke detector compatible therewith. BACKGROUND

[0002] In the existing on-line monitoring equipment for flue gas of pollution sources, the laser backscattering method is generally used to measure the dust in the flue. However, the fixed optical path is set when the smoke detector is manufactured, i.e., the diameter of the flue to be measured is fixed when the smoke detector is manufactured, so that the fixed optical path of the smoke detector is set according to the diameter of the flue.

[0003] However, since the fixed optical path is set when the smoke detector is manufactured, it is difficult for the manufacturer to replace the smoke detector with other optical path when any smoke detector fails, which may result in the loss or distortion of the data about the dust in the on-line monitoring data of the flue gas of pollution sources. Moreover, the diameters of the flues in the production site are different, so the manufacturer needs to purchase various smoke detectors with fixed optical path to realize effective dust monitoring, which results in the difficulty in reducing the purchase cost. SUMMARY

[0004] The present application aims to provide a flange with adjustable length, which can realize the matching installation of the smoke detector with fixed optical path and the flue with arbitrary diameter.

[0005] In order to achieve the above-mentioned purpose, the present application adopts the following technical solutions:

[0006] A flange with adjustable length, in particular, comprises a first flange part connected with the flue and a second flange part connected with the smoke detector. The first flange part can slide relative to the second flange part, and the first flange part is provided with a first optical path channel connected to the flue, and the second flange part is provided with a second optical path channel connected to the smoke detector. The first optical path channel and the second optical path channel are connected to each other to form an optical path adjustment channel, and the guide axis of the first optical path channel is parallel to the guide axis of the second optical path channel. The flange further comprises an optical path adjustment assembly connected with the first flange part and the second flange part. The optical path adjustment assembly can fix the relative position of the first flange part and the second flange part to adjust the length of the optical path adjustment channel.

[0007] The principle of the present application is as follows:

[0008] The first flange is connected to the monitoring port of the flue, and the second flange is connected to the light wave inlet of the dust instrument. According to the fixed optical path of the dust instrument and the diameter of the flue, the user sets the length of the optical path adjustment channel, and the sum of the diameter of the flue and the length of the optical path adjustment channel is equal to the fixed optical path of the dust instrument. The user can adjust the length of the optical path according to the set length of the optical path adjustment channel, so that the first flange and the second flange slide relative to each other until the length of the optical path adjustment channel formed by the first optical path channel and the second optical path channel is equal to the set value, and the relative position of the first flange and the second flange is fixed by the optical path adjustment assembly. The dust instrument with a fixed optical path different from the diameter of the flue can be matched with the flue for installation, and the dust data of the flue can be monitored.

[0009] In one example, the first flange is provided with a first connecting part capable of being connected to the flue, the first connecting part is provided with a first optical path hole capable of being communicated to the flue, the first connecting part is provided with a first extension part extending axially along the first optical path hole to the second flange, the first extension part is provided with a first through hole communicated with the first optical path hole, and the first through hole and the first optical path hole form a first optical path channel.

[0010] In one example, the second flange is provided with a second connecting part capable of being connected to the dust instrument, the second connecting part is provided with a second optical path hole capable of being communicated to the dust instrument, the first connecting part is provided with a second extension part extending axially along the second optical path hole to the first flange, the second extension part is provided with a second through hole communicated with the second optical path hole, and the second through hole and the second optical path hole form a second optical path channel.

[0011] In one example, the first extension part and the second extension part are in a cylindrical structure, and the first extension part and the second extension part are in a nested design; the mutual connection part of the first extension part and the second extension part is provided with a sealing layer capable of isolating the outside. Through the design of the sealing layer, water and ash layer can be effectively prevented from entering the flue from the gap of the mutual connection part of the first extension part and the second extension part, thereby affecting the measurement accuracy of the dust instrument.

[0012] In one example, the optical path adjustment assembly comprises a first sliding rail piece connected with the first flange piece and a second sliding rail piece connected with the second flange piece; the first sliding rail piece is provided with a plurality of first stroke holes arranged along the longitudinal direction of the first sliding rail piece, the second sliding rail piece is provided with a plurality of second stroke holes arranged along the longitudinal direction of the second sliding rail piece, and at least one first stroke hole and at least one second stroke hole are in communication when the relative positions of the first flange piece and the second flange piece are fixed; the optical path adjustment assembly further comprises a locking component, which is inserted into the communicated first stroke hole and second stroke hole to lock the relative positions of the first flange piece and the second flange piece. By inserting the locking component into the first stroke hole and the second stroke hole, the user can quickly lock the relative positions of the first flange piece and the second flange piece, and can adjust the relative positions of the first flange piece and the second flange piece at any time according to the actual situation on site, so that the smoke dust instrument with fixed optical path can be matched and installed with any diameter flue on site.

[0013] The application further provides a smoke dust instrument with adjustable flange compatibility, which comprises a smoke dust instrument body and a connecting part connected with the smoke dust instrument body, the connecting part being connected with the second flange piece, so that the smoke dust instrument can be matched and installed with other flues except the flues with diameters corresponding to the fixed optical path.

[0014] The application has the following technical effects:

[0015] 1. Effectively solves the situation that the smoke dust instrument with fixed optical path collects distorted smoke dust data due to the too small diameter of the flue on site;

[0016] 2. Effectively solves the situation that the smoke dust instrument cannot be matched with the flue with corresponding diameter when the smoke dust instrument fails, resulting in missing smoke dust data collection;

[0017] 3. Realizes the quick replacement of the smoke dust instrument, guarantees the continuity of smoke dust data collection, and effectively improves the quality of flue gas pollution source data collection;

[0018] 4. Through the optical path adjustment assembly, the length of the optical path adjustment channel can be adjusted at any time according to the diameter of the flue on site, so that the smoke dust instrument with fixed optical path has universality;

[0019] 5. Effectively reduces the storage cost of spare parts of the smoke dust instrument for users. BRIEF DESCRIPTION OF DRAWINGS

[0020] Fig. 1 is a schematic view of the adjustable flange in the embodiment of the application;

[0021] Fig. 2 is a schematic view of the first flange piece in the embodiment of the application;

[0022] Fig. 3 is a schematic view of the second flange piece in the embodiment of the application;

[0023] Fig. 4 This is a schematic diagram of the first slide rail piece in an embodiment of the present invention;

[0024] Fig. 5 This is a schematic diagram of the second slide rail piece in an embodiment of the present invention.

[0025] Explanation of reference numerals in the attached drawings: 1-First flange; 2-Second flange; 3-First connecting part; 4-First optical path hole; 5-First extension; 6-First through hole; 7-Second connecting part; 8-Second optical path hole; 9-Second extension; 10-Second through hole; 11-Sealing layer; 12-First slide rail; 13-Second slide rail; 14-First stroke hole; 15-Second stroke hole; 16-Stroke groove; 17-Fluid duct; 18-Fluid meter. Detailed Implementation

[0026] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0027] like Figs. 1-5 The adjustable flange shown includes a first flange 1 that can be connected to the flue 17 and a second flange 2 that can be connected to the dust collector 18. Based on the high-temperature acidic or high-temperature alkaline operating conditions at the site, the first flange 1 and the second flange 2 can be made of corrosion-resistant stainless steel.

[0028] The first flange 1 is provided with a first connecting part 3 that can be connected to the flue 17. The first connecting part 3 is provided with a first optical path hole 4 that can be connected to the flue 17. The first connecting part 3 is provided with a first extension part 5 that extends axially from the first optical path hole 4 to the second flange 2. The first extension part 5 is provided with a first through hole 6 that communicates with the first optical path hole 4. The first through hole 6 and the first optical path hole 4 communicate to form a first optical path channel that can be connected to the flue 17.

[0029] The second flange 2 is provided with a second connecting part 7 that can be connected to the dust collector 18. The second connecting part 7 is provided with a second optical path hole 8 that can communicate with the dust collector 18. The first connecting part 3 is provided with a second extension part 9 that extends axially along the second optical path hole 8 toward the first flange 1. The second extension part 9 is provided with a second through hole 10 that communicates with the second optical path hole 8. The second through hole 10 and the second optical path hole 8 communicate to form a second optical path channel that can communicate with the dust collector 18. The first optical path channel and the second optical path channel communicate with each other to form an optical path adjustment channel.

[0030] In this embodiment, as Figs. 1-3As shown, the first extension 5 and the second extension 9 are in a cylindrical structure, and the first extension 5 is sleeved in the second extension 9, so that the first flange 1 can slide relative to the second flange 2, and the guide axis of the first light path channel is collinear with the guide axis of the second light path channel. The mutual connection of the first extension 5 and the second extension 9 is provided with a sealing layer 11 capable of isolating the outside. Through the design of the sealing layer 11, water and ash layer can be effectively prevented from entering the flue 17 from the gap of the mutual connection of the first extension 5 and the second extension 9, thereby affecting the measurement accuracy of the smoke dust instrument 18.

[0031] In this embodiment, the adjustable flange further comprises a light path adjustment assembly connected with the first flange 1 and the second flange 2 respectively and capable of fixing the relative position of the first flange 1 and the second flange 2 to adjust the length of the light path adjustment channel. Specifically, the light path adjustment assembly comprises a first sliding rail piece 12 connected with the first flange 1, a second sliding rail piece 13 connected with the second flange 2, and a locking part.

[0032] The first sliding rail piece 12 is provided with a stroke groove 16 arranged in the longitudinal direction of the first sliding rail piece 12, and the bottom of the stroke groove 16 is provided with a plurality of first stroke holes 14;

[0033] The second sliding rail piece 13 slides in the stroke groove 16, and the second sliding rail piece 13 is provided with a plurality of second stroke holes 15 arranged in the longitudinal direction of the second sliding rail piece 13, and at least one first stroke hole 14 and at least one second stroke hole 15 are in communication when the relative position of the first flange 1 and the second flange 2 is fixed;

[0034] The locking part (not shown in the figure) penetrates into the communicated first stroke hole 14 and the second stroke hole 15 to lock the relative position of the first flange 1 and the second flange 2. In this embodiment, the locking part is a bolt.

[0035] In this embodiment, the first sliding rail piece 12 and the second sliding rail piece 13 are provided with a scale for users to intuitively observe the length of the light path adjustment channel.

[0036] When the equipment on site fails, the user can pre-set the length of the light path adjustment channel according to the fixed light path of the smoke dust instrument 18 and the diameter of the flue 17, so that the sum of the diameter of the flue 17 and the length of the light path adjustment channel is equal to the fixed light path of the smoke dust instrument 18. For example, if the on-site flue is 0.6 meters in diameter, and the fixed light path of the smoke dust instrument 18 is 1.2 meters, the user needs to set the length of the light path adjustment channel to 0.6 meters.

[0037] According to the set optical path adjustment channel length, the first flange 1 and the second flange 2 are relatively slid until the length of the optical path adjustment channel formed by the mutual communication of the first optical path channel and the second optical path channel reaches the set value, and the bolt is penetrated into the first stroke hole 14 and the second stroke hole 15 to fix the relative position of the first flange 1 and the second flange 2. Then, the user connects the first flange 1 to the fixed flange of the monitoring port of the flue 17, and connects the light wave inlet of the dust instrument 18 to the second flange 2, which is equivalent to extending the diameter of the flue through the optical path adjustment channel, so that the dust instrument 18 with a fixed optical path of 1.2 meters can collect dust data of the flue 17 with a diameter of 0.6 meters.

[0038] The dust instrument can also be pre-assembled with the adjustable flange, so that the dust instrument with a fixed optical path can be matched and installed with other flues 17 on site with a diameter corresponding to the fixed optical path. The dust instrument comprises a dust instrument body and a connecting part connected to the dust instrument body, and the connecting part is connected to the second flange 2 to complete the assembly of the dust instrument and the adjustable flange.

[0039] The preferred embodiments of the present application are only listed in the specification, and any equivalent technical transformation made under the working principle and idea of the present application is considered as the protection scope of the present application.

Claims

1. An adjustable flange, characterized by: The first flange part can be connected with the flue, and the second flange part can be connected with the dust instrument; the first flange part can slide relative to the second flange part, and a first light path channel capable of being communicated into the flue is arranged in the first flange part; a second light path channel capable of being communicated into the dust instrument is arranged in the second flange part; the first light path channel and the second light path channel are communicated with each other to form a light path adjustment channel, and the guide axis of the first light path channel and the guide axis of the second light path channel are parallel to each other; a light path adjustment assembly is further arranged, and the light path adjustment assembly is connected with the first flange part and the second flange part respectively; the light path adjustment assembly can fix the relative position of the first flange part and the second flange part to adjust the length of the light path adjustment channel; a first connecting part capable of being connected with the flue is arranged on the first flange part, and a first extension part extending to the second flange part along the axial direction of the first light path hole is arranged on the first connecting part; a second connecting part capable of being connected with the dust instrument is arranged on the second flange part, and a second extension part extending to the first flange part along the axial direction of the second light path hole is arranged on the second connecting part; the first extension part and the second extension part are in a cylindrical structure, and the first extension part is sleeved in the second extension part; the light path adjustment assembly comprises a first sliding rail piece connected with the first flange part and a second sliding rail piece connected with the second flange part; a plurality of first stroke holes arranged in the longitudinal direction of the first sliding rail piece are arranged on the first sliding rail piece, a plurality of second stroke holes arranged in the longitudinal direction of the second sliding rail piece are arranged on the second sliding rail piece, and at least one first stroke hole and at least one second stroke hole are communicated when the relative position of the first flange part and the second flange part is fixed; the light path adjustment assembly further comprises a locking part, the locking part is inserted into the communicated first stroke hole and second stroke hole to lock the relative position of the first flange part and the second flange part.

2. The adjustable flange of claim 1, wherein: A first light path hole capable of being communicated into the flue is arranged on the first connecting part, and a first through hole communicated with the first light path hole is arranged in the first extension part, so as to form the first light path channel.

3. The adjustable flange of claim 2, wherein: A second light path hole capable of being communicated into the dust instrument is arranged on the second connecting part, and a second through hole communicated with the second light path hole is arranged in the second extension part, so as to form the second light path channel.

4. The adjustable flange of claim 3, wherein: A sealing layer capable of isolating the outside world is arranged around the mutual connection of the first extension part and the second extension part.

5. The adjustable flange of claim 1 or 4, wherein: The guide axis of the first light path channel and the guide axis of the second light path channel are collinear.

6. The adjustable flange of claim 1, wherein: Scale marks are arranged on the first sliding rail piece and the second sliding rail piece.

7. A soot meter using the adjustable flange compatibility according to any one of claims 1 to 6, characterized in that: The connecting part is connected with the second flange part.

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