Rapid sampling gun dismounting and mounting mechanism for continuous flue gas sampling instrument and use method of rapid sampling gun dismounting and mounting mechanism

Abstract

The invention relates to a rapid sampling gun dismounting and mounting mechanism for a continuous flue gas sampler and a use method, the rapid sampling gun dismounting and mounting mechanism comprises a sampling gun assembly, a sampling gun fixing flange assembly, an upper sampling box assembly and a capturing system, the sampling gun assembly comprises a sampling gun and a sampling gun fixing flange arranged at the rear end of the sampling gun, and the output end of the sampling gun is connected with the capturing system; a porous flange is arranged at one end of the sampling gun fixing flange assembly, a plurality of screw holes are formed in the surface of the other end of the sampling gun fixing flange assembly, fixing holes are formed in a back plate of the upper sampling box assembly, and the upper sampling box assembly is fixed to the side, with the screw holes, of the sampling gun fixing flange assembly through sampling box fixing bolts. The sampling gun assembly sequentially passes through the upper sampling box body assembly, the sampling gun fixing flange assembly and the flue flange and then enters the flue. According to the sampling gun, the function of quickly disassembling and assembling the sampling gun can be achieved without disassembling the upper sampling box body, an old-fashioned mechanism for fixing the sampling gun is not used, mounting and disassembling are convenient, and time and labor are saved.

Description

Technical Field

[0001] The present invention relates to the technical field of environmental pollution analysis and monitoring, and mainly to sampling and analysis of target pollutants in flues, and in particular to a quick disassembly and assembly sampling gun mechanism and a use method for a continuous flue gas sampler used for sampling, analyzing and monitoring dioxins in flue gas and smoke. Background Art

[0002] During the flue gas sampling process, the sampling gun part of the continuous flue gas sampler is usually fixed at the flue mouth for a long time. However, the sampling gun is exposed to the high temperature and corrosive environment of the flue gas for a long time, and it is inevitable that problems will arise and it needs to be replaced. When replacing the sampling gun of the existing continuous flue gas sampler, the main sampling box needs to be dismantled, which is cumbersome, time-consuming and labor-intensive. Summary of the invention

[0003] According to the technical problems raised above, in order to facilitate the replacement of sampling guns and corresponding accessories, the present invention proposes a quick disassembly and assembly sampling gun mechanism and a method of use, which can realize the quick disassembly and assembly of the sampling gun assembly without disassembling the main sampling box.

[0004] The technical means adopted by the present invention are as follows:

[0005] A quick disassembly and assembly sampling gun mechanism for a continuous flue gas sampler comprises: a sampling gun assembly, a sampling gun fixing flange assembly, an upper sampling box assembly and a capture system, wherein the sampling gun assembly comprises a sampling gun and a sampling gun fixing flange arranged at the rear end of the sampling gun, the output end of the sampling gun is connected to the capture system, one end of the sampling gun fixing flange assembly is a porous flange, and the other end surface is provided with a plurality of screw holes, the back plate of the upper sampling box assembly is provided with fixing holes, the porous flange side of the sampling gun fixing flange assembly is connected to the flue flange welded on the flue through flange fixing bolts, the upper sampling box assembly is fixed to the plurality of screw hole sides of the sampling gun fixing flange assembly through the sampling box fixing bolts, the sampling gun assembly enters the flue after passing through the upper sampling box assembly, the sampling gun fixing flange assembly and the flue flange in sequence, the sampling gun fixing flange is attached to the back plate of the upper sampling box assembly, and the sampling gun fixing flange is connected to the plurality of screw hole sides of the sampling gun fixing flange assembly through the sampling gun fixing bolts.

[0006] Furthermore, the sampling gun assembly includes a Pitot tube and a glass lined tube, the Pitot tube is used to measure flow rate, the glass lined tube is fixed in the sampling gun fixing flange, the end of the glass lined tube extends out of the sampling gun fixing flange, and the end of the glass lined tube is connected to the capture system.

[0007] Furthermore, the sampling gun fixed flange assembly also includes a sealing inner flange, an inner flange sealing gasket and an inner flange sealing sleeve. The sealing inner flange is provided with an inner flange sealing gasket, and the sealing inner flange is fixed to the sampling gun assembly through the inner flange sealing sleeve. The sealing inner flange is arranged on the side of the porous flange in the internal space of the sampling gun fixed flange assembly.

[0008] Furthermore, the upper sampling box assembly includes a heating box, a heating box limit plate, and a heating box bracket. The bottom of the heating box is installed on the heating box bracket. The heating box limit plate is used to limit the lateral displacement of the heating box. The heating box is fixed as a whole to the sampling gun fixed flange assembly through the heating box fixing bolts.

[0009] Furthermore, the capture system includes a dust collection and heating box assembly, which includes a dust collection pipeline and a dust collector and an on-off valve arranged on the dust collection pipeline. The output end of the dust collector is provided with a cooling bottle and an enrichment tube. The cooling bottle is sealedly connected to the tail end of the dust collector, and the enrichment tube is sealedly connected to the end of the cooling bottle. The end of the enrichment tube is then connected to the downstream sampler through an air circuit.

[0010] The present invention also discloses a method for using the quick disassembly and assembly sampling gun mechanism for the continuous flue gas sampler, comprising the following steps:

[0011] Step 1: Fix the porous flange end of the sampling gun fixed flange assembly to the flue flange through the flange fixing bolts;

[0012] Step 2: Fix the upper sampling box assembly to the screw hole end of the sampling gun fixing flange assembly through the sampling box fixing bolts;

[0013] Step 3, push the sampling gun assembly into the flue as a whole, passing through the upper sampling box assembly, the sampling gun fixed flange assembly, the flue flange, and finally the front end into the flue, the rear end sampling gun fixed flange is attached to the back plate of the upper sampling box assembly, the inner flange sealing gasket fixed on the sampling gun assembly is pressed against the inner flange of the sampling gun fixed flange assembly to achieve sealing, and fixed to the sampling gun fixed flange assembly by the sampling gun fixing bolts;

[0014] Step 4: Place the dust collection heating box assembly as a whole in the heating box limit plate, push it in close to the sampling gun fixed flange end, and fix it with the heating box fixing bolts and the screw hole end of the sampling gun fixed flange assembly;

[0015] Step 5, install the cooling bottle and the enrichment tube into the upper sampling box assembly, seal the cooling bottle with the tail end of the dust collector, seal the enrichment tube with the end of the cooling bottle, and connect the end of the enrichment tube to the lower sampler through the gas path.

[0016] Compared with the prior art, the present invention has the following advantages: the mechanism of the present invention can realize the function of quickly disassembling and assembling the sampling gun without disassembling the upper sampling box through the fixed cooperation of various components, rather than the old-fashioned mechanism of fixing the sampling gun, which is convenient to install and disassemble, saving time and effort. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0018] Figure 1 It is a schematic diagram of the main structure of a quick disassembly and assembly sampling gun mechanism for a continuous flue gas sampler of the present invention.

[0019] Figure 2 It is a schematic diagram of a continuous smoke sampler of the present invention using a quick disassembly sampling gun mechanism during sampling operation.

[0020] Figure 3 It is an enlarged view of a quick disassembly and assembly sampling gun mechanism for a continuous flue gas sampler of the present invention.

[0021] In the figure: 1. Sampling gun assembly; 1-1. Pitot tube; 1-2. Sampling gun fixing flange; 1-3. Glass liner tube; 1-4. Sampling gun fixing bolts; 2. Sampling gun fixing flange assembly; 2-1. Sealing inner flange; 2-2. Inner flange sealing gasket; 2-3. Inner flange sealing sleeve; 2-4. Flange fixing bolts; 3. Upper sampling box assembly; 3-1. Heating box limit plate; 3-2. Heating box bracket; 3-3. Sampling box fixing bolts; 4. Dust collection and heating box assembly; 4-1. On-off valve; 4-2. Transition elbow; 4-3. Dust collector; 4-4. Heating box fixing bolts; 5. Cooling bottle; 6. Enrichment tube; 7. Gas path; 8. Lower sampler; 9. Flue flange; 10. Flue. DETAILED DESCRIPTION

[0022] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0023] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit exemplary embodiments according to the present invention. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprising" and / or "including" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0025] Unless otherwise specifically stated, the relative arrangement of the parts and steps described in these embodiments, the numerical expressions and numerical values ​​do not limit the scope of the present invention. At the same time, it should be clear that, for ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The technology, methods and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be regarded as part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0026] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention: the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0027] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below their position devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0028] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the present invention.

[0029] like Figures 1 to 3 As shown, the embodiment of the present invention discloses a quick disassembly and assembly sampling gun mechanism for a continuous smoke sampler, including: a sampling gun assembly 1, a sampling gun fixing flange assembly 2, an upper sampling box assembly 3 and a capture system, wherein the sampling gun assembly 1 includes a sampling gun and a sampling gun fixing flange 1-2 arranged at the rear end of the sampling gun, the output end of the sampling gun is connected to the capture system, one end of the sampling gun fixing flange assembly 22 is a porous flange, and the other end surface is provided with a plurality of screw holes, the upper sampling box assembly 3 has a fixing hole on the back plate, and the sampling gun fixing flange assembly 2 is porous. The flange side is connected to the flue flange 9 welded on the flue 10 through the flange fixing bolts 2-4, the upper sampling box assembly 3 is fixed to the multiple screw hole sides of the sampling gun fixing flange assembly 2 through the sampling box fixing bolts 3-3, the sampling gun assembly 1 passes through the upper sampling box assembly 3, the sampling gun fixing flange assembly 2, and the flue flange 9 in turn and enters the flue 10, the sampling gun fixing flange 1-2 is attached to the back plate of the upper sampling box assembly 3, and the sampling gun fixing flange 1-2 is connected to the multiple screw hole sides of the sampling gun fixing flange assembly 2 through the sampling gun fixing bolts 1-4.

[0030] The sampling gun assembly 1 includes a Pitot tube 1-1 and a glass lined tube 1-3. The Pitot tube 1-1 is used to measure flow velocity. The glass lined tube 1-3 is fixed in the sampling gun fixing flange 1-2. The end of the glass lined tube 1-3 extends out of the sampling gun fixing flange 1-2. The end of the glass lined tube 1-3 is connected to the capture system.

[0031] The sampling gun fixed flange assembly 2 includes a porous flange, a connecting end with multiple screw holes and a connecting part connecting the two. The above structure is surrounded by a hollow structure that can accommodate the sampling gun assembly 1, and also includes a sealing inner flange 2-1, an inner flange sealing gasket 2-2 and an inner flange sealing sleeve 2-3. The sealing inner flange 2-1 is equipped with an inner flange sealing gasket 2-2, and the sealing inner flange 2-1 is fixed to the sampling gun assembly 1 through the inner flange sealing sleeve 2-3. The sealing inner flange 2-1 is arranged on the side of the porous flange in the internal space of the sampling gun fixed flange assembly 2.

[0032] The upper sampling box assembly 3 includes a heating box, a heating box limit plate 3-1, and a heating box bracket 3-2. The bottom of the heating box is installed on the heating box bracket 3-2. The heating box limit plate 3-1 is fixed on both sides of the heating box bracket 3-2. The heating box limit plate 3-1 is used to limit the lateral displacement of the heating box. The heating box is fixed as a whole to the sampling gun fixed flange assembly 2 by the heating box fixing bolts 4-4.

[0033] The capture system includes a dust collection and heating box assembly 4, which includes a dust collection pipeline and a dust collector 4-3 and an on-off valve 4-1 arranged on the dust collection pipeline. The output end of the dust collector is provided with a cooling bottle 5 and an enrichment tube 6. The cooling bottle 5 is sealedly connected to the tail end of the dust collector, and the enrichment tube 6 is sealedly connected to the end of the cooling bottle 5. The end of the enrichment tube 6 is then connected to the downstream sampler 8 through the gas path 7.

[0034] As an optional implementation, according to the specifications of the heating box, a transition elbow 4-2 can also be provided to save the volume of the device, in which case the dust collector 4-3 is sealedly connected to the transition elbow 4-2. The transition elbow 4-2 is sealedly connected to the on-off valve 4-1.

[0035] The present invention also discloses a method for using the quick disassembly and assembly sampling gun mechanism for the continuous flue gas sampler, comprising the following steps:

[0036] Step 1, fix the porous flange end of the sampling gun fixed flange assembly 2 to the flue flange 9 through the flange fixing bolts 2-4;

[0037] Step 2, fix the upper sampling box assembly 3 to the screw hole end of the sampling gun fixing flange assembly 2 through the sampling box fixing bolts 3-3;

[0038] Step 3, push the sampling gun assembly 1 as a whole into the flue 10, pass through the upper sampling box assembly 3, the sampling gun fixed flange assembly 2, the flue flange 9, and finally the front end enters the flue 10, the rear end sampling gun fixed flange 1-2 is attached to the back plate of the upper sampling box assembly 3, the inner flange sealing gasket fixed on the sampling gun assembly 1 is pressed against the inner flange of the sampling gun fixed flange assembly 2 to achieve sealing, and fixed to the sampling gun fixed flange assembly 2 by the sampling gun fixing bolts 1-4;

[0039] Step 4, place the dust collection heating box assembly 4 as a whole in the heating box limit plate 3-1, push it in close to the end of the sampling gun fixing flange 1-2, and fix it with the screw hole end of the sampling gun fixing flange assembly 2 through the heating box fixing bolt 4-4;

[0040] Step 5, install the cooling bottle 5 and the enrichment tube 6 into the upper sampling box assembly 3, seal the cooling bottle 5 with the tail end of the dust collector, seal the enrichment tube 6 with the end of the cooling bottle 5, and connect the end of the enrichment tube 6 with the lower sampler 8 through the air path 7.

[0041] If the sampling gun assembly 1 needs to be disassembled, remove the heating box fixing bolts 4 - 4 and remove the dust collection heating box assembly 4 first, and then disassemble or replace the sampling gun assembly 1.

[0042] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A quick-disassembly sampling gun mechanism for a continuous flue gas sampler, characterized in that, it includes: a sampling gun assembly, a sampling gun fixed flange assembly, an upper sampling box assembly and a capture system. The sampling gun assembly includes a sampling gun and a sampling gun fixed flange provided at the rear end of the sampling gun. The output end of the sampling gun is connected to the capture system. One end of the sampling gun fixed flange assembly is a porous flange, and the other end surface is provided with a plurality of screw holes. There are fixing holes on the back plate of the upper sampling box assembly. The porous flange side of the sampling gun fixed flange assembly is connected to a flue gas flange welded on the flue through flange fixing bolts. The upper sampling box assembly is fixed to the side of the plurality of screw holes of the sampling gun fixed flange assembly through sampling box fixing bolts. The sampling gun assembly enters the flue after passing through the upper sampling box assembly, the sampling gun fixed flange assembly, and the flue gas flange in sequence. The sampling gun fixed flange is attached to the back plate of the upper sampling box assembly, and the sampling gun fixed flange is connected to the side of the plurality of screw holes of the sampling gun fixed flange assembly through sampling gun fixing bolts.

2. The quick-disassembly sampling gun mechanism for a continuous flue gas sampler according to claim 1, characterized in that, the sampling gun assembly includes a Pitot tube and a glass inner lining tube. The Pitot tube is used to measure the flow rate. The glass inner lining tube is fixed in the sampling gun fixed flange, and the end of the glass inner lining tube extends out of the sampling gun fixed flange. The end of the glass inner lining tube is connected to the capture system.

3. The quick-disassembly sampling gun mechanism for a continuous flue gas sampler according to claim 1, characterized in that, the sampling gun fixed flange assembly further includes a sealed inner flange, an inner flange gasket and an inner flange seal sleeve. The sealed inner flange is equipped with an inner flange gasket, and the sealed inner flange is fixed on the sampling gun assembly through the inner flange seal sleeve. The sealed inner flange is arranged on the side close to the porous flange in the internal space of the sampling gun fixed flange assembly.

4. The quick-disassembly sampling gun mechanism for a continuous flue gas sampler according to claim 1, characterized in that, the upper sampling box assembly includes a heating box, a heating box limit plate and a heating box support. The bottom of the heating box is installed on the heating box support. The heating box limit plate is used to limit the lateral displacement of the heating box. The heating box is integrally fixed to the sampling gun fixed flange assembly through heating box fixing bolts.

5. The quick-disassembly sampling gun mechanism for a continuous flue gas sampler according to claim 1, characterized in that, the capture system includes a dust capture heating box assembly. The dust capture heating box assembly includes a dust capture pipeline and a dust collector and a on-off valve arranged on the dust capture pipeline. The output end of the dust collector is provided with a cooling bottle and an enrichment tube. The cooling bottle is hermetically connected to the end of the dust collector, the enrichment tube is hermetically connected to the end of the cooling bottle, and the end of the enrichment tube is then connected to the lower sampler through a gas path.

6. A method for using the quick-disassembly sampling gun mechanism for a continuous flue gas sampler according to any one of claims 1-5, characterized in that, it includes the following steps: Step 1, fix the porous flange end of the sampling gun fixed flange assembly on the flue gas flange through flange fixing bolts; Step 2: Fix the upper sampling box assembly to the screw hole end of the sampling gun fixing flange assembly through the sampling box fixing bolts; Step 3, push the sampling gun assembly into the flue as a whole, passing through the upper sampling box assembly, the sampling gun fixed flange assembly, the flue flange, and finally the front end into the flue, the rear end sampling gun fixed flange is attached to the back plate of the upper sampling box assembly, the inner flange sealing gasket fixed on the sampling gun assembly is pressed against the inner flange of the sampling gun fixed flange assembly to achieve sealing, and fixed to the sampling gun fixed flange assembly by the sampling gun fixing bolts; Step 4: Place the dust collection heating box assembly as a whole in the heating box limit plate, push it in close to the sampling gun fixed flange end, and fix it with the heating box fixing bolts and the screw hole end of the sampling gun fixed flange assembly; Step 5, install the cooling bottle and the enrichment tube into the upper sampling box assembly, seal the cooling bottle with the tail end of the dust collector, seal the enrichment tube with the end of the cooling bottle, and connect the end of the enrichment tube to the lower sampler through the gas path.

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