Exhaust gas sulfuric acid mist sampling device and working method thereof

Abstract

The present application belongs to the technical field of sulfuric acid mist detection, and particularly relates to a gas treatment equipment before sulfuric acid mist detection, and especially relates to a waste gas sulfuric acid mist sampling device and a working method thereof. The waste gas sulfuric acid mist sampling device comprises a base, a cooling assembly and a filtering assembly. The cooling assembly further comprises a plurality of heat dissipation fins, and a heat insulation block is arranged in the strip-shaped hole of the cooling pipe. The inner wall of the cooling pipe is attached with an arc-shaped heat insulation plate. The temperature data of the temperature detection sensor is received by the control module, and the opening degree of the arc-shaped heat insulation plate is dynamically adjusted, so that the cooling efficiency of the cooling pipe is actively controllable. The cooling degree can be automatically adjusted according to the initial temperature fluctuation of the waste gas sulfuric acid mist, and the temperature of the cooled gas is ensured to be stable within the preset range. Therefore, the risk of damaging the sulfuric acid mist collector due to the excessively high temperature is effectively avoided, and the sampling error caused by the premature condensation of the sulfuric acid mist due to the excessively low temperature is prevented, and the sampling accuracy and reliability are significantly improved.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of sulfuric acid mist detection, and particularly relates to a gas treatment equipment before sulfuric acid mist detection, and especially relates to a waste gas sulfuric acid mist sampling device and a working method thereof. BACKGROUND

[0002] Accurate sampling of sulfuric acid mist in waste gas is a key prerequisite for subsequent concentration detection. However, the waste gas sulfuric acid mist discharged from the industrial process is usually high in temperature, and if directly introduced into a precise sulfuric acid mist collector, the excessively high temperature can easily cause irreversible damage to the sensors and components inside the instrument.

[0003] In the related art, the sampling device uses a cooling pipe with cooling fins to preliminarily cool the high-temperature sulfuric acid mist. Although this passive cooling method can achieve a certain cooling effect, the cooling efficiency is fixed and unchangeable. In actual working conditions, the discharge temperature of the waste gas often fluctuates, and the fixed cooling capacity can cause the temperature of the cooled gas to be unstable. When the initial temperature of the waste gas is low, excessive cooling can cause the temperature of the sulfuric acid mist to drop below the dew point, resulting in the premature condensation of the gaseous sulfuric acid mist into droplets. This condensation phenomenon can cause part of the sulfuric acid mist to be lost in the pipeline, resulting in a deviation between the concentration of the finally collected sample and the actual discharge concentration, and seriously affecting the accuracy and reliability of the detection results.

[0004] Therefore, how to avoid the damage of the sulfuric acid mist collector caused by excessively high temperature of the sulfuric acid mist and avoid the premature condensation of the sulfuric acid mist caused by excessively low temperature of the sulfuric acid mist is a technical problem to be solved at present.

[0005] It should be noted that the above information disclosed in the background section of the present application is only used to understand the background of the present application, and therefore, the above description is not considered to constitute the information of the prior art. SUMMARY

[0006] The present application provides at least a waste gas sulfuric acid mist sampling device and a working method thereof.

[0007] In a first aspect, the present application provides a waste gas sulfuric acid mist sampling device, comprising:

[0008] a base;

[0009] a cooling assembly arranged above the base;

[0010] a filtering assembly arranged above the base;

[0011] an outlet of a cooling pipe of the cooling assembly is in communication with an inlet of a filtering pipe of the filtering assembly;

[0012] a sulfuric acid mist collector in communication with an outlet of the filtering assembly;

[0013] The cooling assembly further comprises a plurality of heat dissipation fins;

[0014] The plurality of heat dissipation fins are sleeved on the cooling pipe;

[0015] The side wall of the cooling pipe is provided with a strip-shaped hole;

[0016] The strip-shaped hole is provided with a heat insulation block;

[0017] The inner wall of the cooling pipe is attached with an arc-shaped heat insulation plate;

[0018] One end of the arc-shaped heat insulation plate is inserted into the inner cavity of the heat insulation block, and the other end is arranged along the circumference of the inner wall of the cooling pipe;

[0019] A driving member is arranged for driving the arc-shaped heat insulation plate to extend out of or be accommodated into the inner cavity of the heat insulation block;

[0020] A temperature detection sensor is arranged at the outlet of the cooling pipe;

[0021] A control module is configured to control the opening degree of the arc-shaped heat insulation plate by the driving member according to the temperature data of the temperature detection sensor received, so as to adjust the heat dissipation efficiency of the cooling pipe and further control the temperature of the sulfuric acid mist.

[0022] In an optional embodiment, the driving member comprises:

[0023] A driving ring is connected with the arc-shaped heat insulation plate through a connecting rod;

[0024] A driving motor is sleeved with a belt wheel, and the belt wheel is drivingly connected with the driving ring through a belt.

[0025] In an optional embodiment, the control of the opening degree of the arc-shaped heat insulation plate by the driving member according to the temperature data of the temperature detection sensor received is as follows:

[0026] The temperature data is compared with a data table to obtain the opening distance of the arc-shaped heat insulation plate;

[0027] The current position information of the arc-shaped heat insulation plate is obtained;

[0028] The position of the arc-shaped heat insulation plate is adjusted according to the current position information and the opening distance to complete the opening degree adjustment.

[0029] In an optional embodiment, the heat insulation block is provided with a insertion hole for the insertion of the arc-shaped heat insulation plate;

[0030] The bottom surface of the insertion hole is an inclined surface;

[0031] When the arc-shaped heat insulation plate is inserted into the insertion hole, the heat insulation block is pushed to move radially outward, so that the cooling pipe is clamped with the heat dissipation fins.

[0032] In an alternative embodiment, the arc-shaped heat insulation plate has an inverted trapezoidal cross section.

[0033] The insertion hole is shaped to fit the arc-shaped heat insulation plate.

[0034] When the heat insulation block moves radially outward, the insertion hole of the cooling pipe is expanded circumferentially outward, so that the cooling pipe is clamped with the heat dissipation fins.

[0035] In an alternative embodiment, the outlet of the cooling pipe and the inlet of the filter pipe are connected by two flanges.

[0036] A sealing ring is arranged between the two flanges.

[0037] In an alternative embodiment, the flange connected with the outlet of the cooling pipe is axially provided with a sliding hole.

[0038] A sliding block penetrating the flange is slidingly arranged in the sliding hole.

[0039] One end of the sliding block abuts against the sealing ring.

[0040] The other end of the sliding block is arranged below the heat insulation block after penetrating the sliding hole of the flange.

[0041] When the heat insulation block moves radially outward, the sliding block is pushed to axially extrude the sealing ring.

[0042] In an alternative embodiment, the top surface of the other end of the sliding block comprises a horizontal section and an inclined section.

[0043] The inclined section is arranged below the heat insulation block.

[0044] In a second aspect, the embodiments of the present disclosure further provide a working method applied to the waste gas sulfuric acid mist sampling device.

[0045] The waste gas sulfuric acid mist is introduced into the cooling pipe of the cooling assembly.

[0046] The heat dissipation fins dissipate heat of the waste gas sulfuric acid mist.

[0047] The temperature detection sensor detects the temperature of the waste gas sulfuric acid mist after heat dissipation.

[0048] The control module adjusts the opening degree of the arc-shaped heat insulation plate according to the received temperature data.

[0049] After the temperature data detected by the temperature detection sensor reaches the preset range, the control module controls the sulfuric acid mist collector to sample the waste gas sulfuric acid mist.

[0050] In an alternative embodiment, the control module adjusts the opening degree of the arc-shaped heat insulation plate according to the received temperature data, namely:

[0051] The temperature data is compared with the data table to obtain the opening distance of the arc-shaped heat insulation plate;

[0052] The current position information of the arc-shaped heat insulation plate is obtained;

[0053] According to the current position information and the opening distance, the position of the arc-shaped heat insulation plate is adjusted to complete the opening degree adjustment.

[0054] The beneficial effects of the present application are that the waste gas sulfuric acid mist sampling device and its working method receive the temperature data of the temperature detection sensor through the control module, and dynamically adjust the opening degree of the arc-shaped heat insulation plate, which realizes the active controllability of the cooling pipe heat dissipation efficiency, which can automatically adjust the cooling degree according to the initial temperature fluctuation of the waste gas sulfuric acid mist, and ensure that the gas temperature after cooling is stable within the preset range. Thus, the risk of damaging the sulfuric acid mist collector due to high temperature is effectively avoided, and the sampling error caused by the premature condensation of sulfuric acid mist due to low temperature is prevented, and the sampling accuracy and reliability are significantly improved.

[0055] Other features and advantages of the present application will be set forth in the following description, and in part will become apparent to those skilled in the art from the description, or can be learned by practice of the present application. The objects and other advantages of the present application will be realized and achieved by the structure particularly pointed out in the specification and drawings.

[0056] In order to make the above-mentioned objects, features and advantages of the present application more obvious and easy to understand, the preferred embodiments are described in detail below, and the accompanying drawings are described as follows. BRIEF DESCRIPTION OF DRAWINGS

[0057] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the following will briefly introduce the drawings needed to be used in the specific embodiments or prior art description. Obviously, the drawings in the following description are some embodiments of the present application, and those skilled in the art can also obtain other drawings according to these drawings without creative labor.

[0058] Figure 1 A sectional view of the waste gas sulfuric acid mist sampling device provided by the embodiment of the present disclosure;

[0059] Figure 2 Another sectional view of the waste gas sulfuric acid mist sampling device provided by the embodiment of the present disclosure from another perspective;

[0060] Figure 3 FIG. 3 is a cross-sectional view of a waste gas sulfuric acid mist sampling device according to a third perspective of an embodiment of the present disclosure;

[0061] Figure 4 FIG. 4 is a cross-sectional view of a cooling pipe according to an embodiment of the present disclosure;

[0062] Figure 5 FIG. 5 is a cross-sectional view of a cooling pipe according to another perspective of an embodiment of the present disclosure;

[0063] Figure 6 FIG. 6 is a working method of a waste gas sulfuric acid mist sampling device according to an embodiment of the present disclosure;

[0064] Figure 7 FIG. 7 is an electrical control schematic diagram of a waste gas sulfuric acid mist sampling device according to an embodiment of the present disclosure.

[0065] In the figure: 100, base; 200, cooling assembly; 210, cooling pipe; 211, strip-shaped hole; 212, heat insulation block; 212a, insertion hole; 213, arc-shaped heat insulation plate; 214, flange plate; 214a, sliding hole; 214b, sliding block; 215, sealing ring; 220, heat dissipation fin; 230, driving member; 231, driving ring; 232, driving motor; 233, belt; 234, connecting rod; 240, temperature detection sensor; 300, filtering assembly; 310, filtering pipe. DETAILED DESCRIPTION

[0066] In order to make the objectives, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions of the present application will be described below in connection with the attached drawings. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of protection of the present application.

[0067] In this document, when it is mentioned that a first component is located on a second component, it can mean that the first component can be directly formed on the second component, or a third component can be interposed between the first component and the second component. In addition, in the drawings, in order to effectively describe the technical content, the thickness of the components can be exaggerated or reduced.

[0068] In this document, when an element or layer is referred to as being "on", "engaged to", "connected to", "attached to" or "coupled to" another element or layer, it can be directly on, engaged, connected, attached or coupled to the other element or layer, or intervening elements or layers can be present. In contrast, when an element is referred to as being "directly on", "directly engaged to", "directly connected to", "directly attached to" or "directly coupled to" another element or layer, there are no intervening elements or layers present. Other words used to describe the relationship between elements should be interpreted in a like fashion (e.g., "between" versus "directly between", "adjacent" versus "directly adjacent", etc.). As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0069] In this document, example embodiments of the disclosure will be described in greater detail with reference to the accompanying drawings. As used herein, expressions such as "at least one of," when preceding a list of two or more items, modify the entire list of items and do not modify the individual items of the list.

[0070] The terminology used herein is for the purpose of describing particular example configurations only and is not intended to be limiting. As used herein, the singular articles "a," "an," and "the" can be intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises," "comprising," "including," and "having" are inclusive and therefore specify the presence of stated features, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and / or groups thereof. The method steps, processes, and operations described herein are not to be construed as necessarily requiring their performance in the particular order

[0071] As used herein, the phrases "in an embodiment," "according to an embodiment," "in some embodiments," and the like, generally mean the particular feature, structure, or characteristic following the phrase can be included in at least one embodiment of the present disclosure. Thus, appearances of such phrases in various places throughout this specification do not necessarily all refer to the same embodiment. As used herein, the term "example" or "exemplary" means "serving as an example, instance, or illustration." Any implementation, aspect or design described herein as "example" or "exemplary" is not necessarily to be construed as preferred or advantageous over other implementations, aspects or designs. Rather, the term "example" or "exemplary" is intended to present concepts in a concrete manner.

[0072] It is found through research that the sampling device will use a cooling pipe with heat dissipation fins to preliminarily cool the high-temperature sulfuric acid mist. Although this passive heat dissipation method can play a certain role in cooling, its heat dissipation efficiency is fixed and cannot be dynamically adjusted according to the actual temperature of the inlet sulfuric acid mist. In actual working conditions, the exhaust gas emission temperature often fluctuates, and the fixed heat dissipation capacity will cause the temperature of the cooled gas to be unstable. When the initial temperature of the exhaust gas is low, excessive cooling will cause the temperature of the sulfuric acid mist to drop below the dew point, causing the gaseous sulfuric acid mist to condense into droplets too early. This condensation phenomenon not only causes the sampling pipeline to be blocked, but more seriously, it causes part of the sulfuric acid mist to be lost in the pipeline, making the final collected sample concentration deviate from the actual emission concentration, seriously affecting the accuracy and reliability of the detection results.

[0073] Based on the above research, the embodiment of the present disclosure provides a waste gas sulfuric acid mist sampling device and a working method thereof. The temperature data of the temperature detection sensor 240 is received by the control module, and the opening degree of the arc-shaped heat insulation plate 213 is dynamically adjusted, so as to realize the active controllability of the heat dissipation efficiency of the cooling pipe 210. This can automatically adjust the cooling degree according to the initial temperature fluctuation of the waste gas sulfuric acid mist, and ensure that the temperature of the cooled gas is stable within the preset range. Thus, the risk of damaging the sulfuric acid mist collection instrument due to excessive temperature is effectively avoided, and the sampling error caused by the early condensation of sulfuric acid mist due to low temperature is prevented, and the sampling accuracy and reliability are significantly improved.

[0074] It should be noted that similar reference numerals and letters refer to similar items throughout the accompanying drawings, and thus once an item is defined in one drawing, it is not necessary to further define and explain it in subsequent drawings.

[0075] Some embodiments of the present application will be described in detail below with reference to the accompanying drawings. The following embodiments and features in the embodiments can be combined with each other without conflict.

[0076] Please refer to Figure 1 and Figure 2At least one embodiment provides a waste gas sulfuric acid mist sampling device, comprising: a base 100; a cooling assembly 200 arranged above the base 100; a filtering assembly 300 arranged above the base 100; the outlet of the cooling pipe 210 of the cooling assembly 200 communicates with the inlet of the filtering pipe 310 of the filtering assembly 300; a sulfuric acid mist collector communicates with the gas outlet of the filtering assembly 300; wherein the cooling assembly 200 further comprises a plurality of heat dissipation fins 220; a plurality of heat dissipation fins 220 are sleeved on the cooling pipe 210; a strip-shaped hole 211 is formed in the side wall of the cooling pipe 210; a heat insulation block 212 is arranged in the strip-shaped hole 211; an arc-shaped heat insulation plate 213 is attached to the inner wall of the cooling pipe 210; one end of the arc-shaped heat insulation plate 213 is inserted into the inner cavity of the heat insulation block 212, and the other end is arranged along the circumference of the inner wall of the cooling pipe 210; a driving member 230 is used to drive the arc-shaped heat insulation plate 213 to extend out of or be accommodated into the inner cavity of the heat insulation block 212; a temperature detection sensor 240 is arranged at the outlet of the cooling pipe 210.

[0077] Please refer to Figure 7 , a control module is configured to control the opening degree of the arc-shaped heat insulation plate 213 through the driving member 230 according to the temperature data of the temperature detection sensor 240, so as to adjust the heat dissipation efficiency of the cooling pipe 210 and control the temperature of the sulfuric acid mist.

[0078] By receiving the temperature data of the temperature detection sensor 240 through the control module and dynamically adjusting the opening degree of the arc-shaped heat insulation plate 213, the heat dissipation efficiency of the cooling pipe 210 is actively controllable, which can automatically adjust the cooling degree according to the initial temperature fluctuation of the waste gas sulfuric acid mist, and ensure that the gas temperature after cooling is stable within a preset range. Thus, the risk of damaging the sulfuric acid mist collector due to excessively high temperature is effectively avoided, and the sampling error caused by the premature condensation of sulfuric acid mist due to excessively low temperature is prevented, which significantly improves the sampling accuracy and reliability

[0079] Please refer to Figure 1 and Figure 3 , the driving member 230 comprises: a driving ring 231 connected to the arc-shaped heat insulation plate 213 through a connecting rod 234; a driving motor 232, the rotor of which is sleeved with a pulley, and the pulley is in transmission connection with the driving ring 231 through a belt 233.

[0080] Through the cooperation of the driving ring 231, the driving motor 232, the pulley and the belt 233, the arc-shaped heat insulation plate 213 is driven to move along the inner wall of the cooling pipe 210, so that the opening degree of the arc-shaped heat insulation plate 213 is adjustable, and the gas temperature after cooling is stable within a preset range.

[0081] Specifically, the control module controls the opening degree of the arc-shaped heat insulation plate 213 according to the received temperature data of the temperature detection sensor 240, that is, the temperature data is compared with the data table to obtain the opening distance of the arc-shaped heat insulation plate 213; the current position information of the arc-shaped heat insulation plate 213 is obtained; and the position of the arc-shaped heat insulation plate 213 is adjusted according to the current position information and the opening distance, so as to complete the opening degree adjustment.

[0082] The control module has a data table in which the corresponding relationship between the historical opening distance and the temperature data is stored. In subsequent use, the control module compares the temperature data with the historical data in the data table to obtain the opening distance of the arc-shaped heat insulation plate 213, so as to facilitate the control of the opening degree by the control module.

[0083] Please refer to Figure 3 and Figure 4 , the heat insulation block 212 is provided with a insertion hole 212a for inserting the arc-shaped heat insulation plate 213; and the bottom surface of the insertion hole 212a is an inclined surface; when the arc-shaped heat insulation plate 213 is inserted into the insertion hole 212a (the insertion direction is shown as F1 in Figure 3 , the heat insulation block 212 is pushed to move outward along the radial direction (as shown as F2 in Figure 3 , so as to clamp the cooling pipe 210 and the heat dissipation fin 220.

[0084] The mechanical connection between the cooling pipe 210 and the heat dissipation fin 220 is enhanced, the heat dissipation contact efficiency is improved, the loosening caused by vibration or thermal deformation is prevented, and the consistency of the heat dissipation performance is ensured.

[0085] Please continue to refer to Figure 3 and Figure 4 , the cross section of the arc-shaped heat insulation plate 213 is an inverted trapezoid; the shape of the insertion hole 212a is adapted to the arc-shaped heat insulation plate 213; when the heat insulation block 212 moves outward along the radial direction, the insertion hole 212a of the cooling pipe 210 is expanded outward along the circumferential direction, so as to clamp the cooling pipe 210 and the heat dissipation fin 220.

[0086] Through the inverted trapezoidal cross section of the arc-shaped heat insulation plate 213 and the adapted shape of the insertion hole 212a, the cooling pipe 210 is expanded when the heat insulation block 212 moves, so that the cooling pipe 210 clamps and fixes the heat dissipation fin 220, and the vibration of the cooling pipe 210 is avoided.

[0087] Please refer to Figure 1 and Figure 4 , the outlet of the cooling pipe 210 and the inlet of the filter pipe 310 are connected through two flanges 214; and a sealing ring 215 is arranged between the two flanges 214.

[0088] It should be noted that the flange 214 connected to the outlet of the cooling pipe 210 has a sliding hole 214a along the axial direction; a slider 214b is slidably disposed in the sliding hole 214a, penetrating the flange 214; one end of the slider 214b abuts against the sealing ring 215; the other end of the slider 214b passes through the sliding hole 214a of the flange 214 and is positioned below the heat insulation block 212; the heat insulation block 212 moves radially outward (the direction of movement is as follows) Figure 5 When (as shown in F3), the slider 214b is pushed to compress axially (compression direction as shown in F3). Figure 5 The sealing ring 215 (shown in F4) is described.

[0089] By dynamically enhancing the sealing force of the sealing ring 215 through slider 214b, the connection seal is maintained while adjusting heat dissipation efficiency, reducing the risk of leakage and improving the overall stability of the system.

[0090] Please see Figure 5 The top surface of the other end of the slider 214b includes a horizontal section and an inclined section; and the inclined section is located below the heat insulation block 212.

[0091] By designing the horizontal and inclined sections on the top surface of the slider 214b, the contact between the slider 214b and the heat insulation block 212 is optimized, making the movement of the slider 214b smoother, reducing wear, ensuring that the sealing ring 215 is evenly pressurized, extending the life of the seal, and maintaining the consistency of the sealing effect.

[0092] Please see Figure 7 This disclosure also provides a working method for the sulfuric acid mist sampling device described above. The control module receives temperature data from the temperature sensor 240 and dynamically adjusts the opening of the arc-shaped heat insulation plate 213, achieving active control over the heat dissipation efficiency of the cooling pipe 210. This automatically adjusts the cooling degree based on the initial temperature fluctuations of the sulfuric acid mist, ensuring that the gas temperature remains stable within a preset range after cooling. This effectively avoids the risk of damage to the sulfuric acid mist collector due to excessively high temperatures, while also preventing sampling errors caused by premature condensation of the sulfuric acid mist due to excessively low temperatures, significantly improving sampling accuracy and reliability.

[0093] Specifically, the working method includes:

[0094] S110: Waste sulfuric acid mist is introduced into the cooling pipe 210 of the cooling assembly 200;

[0095] S120: Heat dissipation fins 220 dissipate heat from the waste gas sulfuric acid mist;

[0096] S130: Temperature sensor 240 detects the temperature of sulfuric acid mist in the exhaust gas after heat dissipation;

[0097] S140: The control module adjusts the opening degree of the arc-shaped heat insulation plate 213 according to the received temperature data.

[0098] The step S140 comprises the following steps: comparing the temperature data with the data table to obtain the opening distance of the arc-shaped heat insulation plate 213; obtaining the current position information of the arc-shaped heat insulation plate 213; adjusting the position of the arc-shaped heat insulation plate 213 according to the current position information and the opening distance to complete the opening degree adjustment.

[0099] S150: After the temperature data detected by the temperature detection sensor 240 reaches the preset range, the control module controls the sulfuric acid mist collector to sample the waste gas sulfuric acid mist.

[0100] In summary, the application provides a waste gas sulfuric acid mist sampling device and its working method, wherein the waste gas sulfuric acid mist sampling device comprises a base 100, a cooling assembly 200 arranged above the base 100, a filtering assembly 300 arranged above the base 100, the outlet of the cooling pipe 210 of the cooling assembly 200 is in communication with the inlet of the filtering pipe 310 of the filtering assembly 300, a sulfuric acid mist collector is in communication with the gas outlet of the filtering assembly 300, wherein the cooling assembly 200 further comprises a plurality of heat dissipation fins 220, a plurality of heat dissipation fins 220 are sleeved on the cooling pipe 210, a strip-shaped hole 211 is formed in the side wall of the cooling pipe 210, a heat insulation block 212 is arranged in the strip-shaped hole 211, an arc-shaped heat insulation plate 213 is attached to the inner wall of the cooling pipe 210, one end of the arc-shaped heat insulation plate 213 is inserted into the inner cavity of the heat insulation block 212, and the other end is arranged along the circumference of the inner wall of the cooling pipe 210, a driving member 230 is used to drive the arc-shaped heat insulation plate 213 to extend out of the inner cavity of the heat insulation block 212 or to be accommodated into the inner cavity of the arc-shaped heat insulation plate 213, a temperature detection sensor 240 is arranged at the outlet of the cooling pipe 210, and a control module is configured to control the opening degree of the arc-shaped heat insulation plate 213 through the driving member 230 according to the received temperature data of the temperature detection sensor 240, so as to adjust the heat dissipation efficiency of the cooling pipe 210 and further control the temperature of the sulfuric acid mist. The temperature data of the temperature detection sensor 240 is received by the control module, and the opening degree of the arc-shaped heat insulation plate 213 is dynamically adjusted, so that the heat dissipation efficiency of the cooling pipe 210 is actively controllable, which can automatically adjust the cooling degree according to the initial temperature fluctuation of the waste gas sulfuric acid mist, and ensure that the gas temperature after cooling is stable within the preset range. Therefore, the risk of damaging the sulfuric acid mist collector due to high temperature is effectively avoided, and the sampling error caused by the premature condensation of sulfuric acid mist due to low temperature is prevented, and the sampling accuracy and reliability are significantly improved.

[0101] Other features and advantages of the present application will be set forth in the description that follows, and in part will be apparent from the description, or can be learned by practice of the application. The purposes and other advantages of the present application will be realized and attained by the structures particularly pointed out in the description and appended claims.

[0102] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, the terms "mounting", "connection", "connecting" should be understood broadly, for example, can be fixed connection, can also be detachable connection, or integrally connected; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through intermediate medium, can be internal communication of two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0103] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, terms such as "first", "second" and other numerical terms are used herein without implying a sequence or order, unless expressly indicated herein. Therefore, the first element, component, region, layer or section discussed above can be referred to as the second element, component, region, layer or section without departing from the teachings of the example embodiments.

[0104] Spatially relative terms, such as "inner", "outer", "below", "below", "lower", "above", "upper", and the like, can be used herein to facilitate description of the relationship of one element or feature to another element or feature as illustrated in the drawings. In addition to the orientation depicted in the drawings, the spatially relative terms can be intended to cover different orientations of the device in use or operation. For example, if the device in the drawing is turned over, the element described as "below" or "under" the other element or feature will be oriented "above" the other element or feature. Therefore, the example term "below" can cover the above and below orientations. The device can be oriented in other ways (rotated 90 degrees or in other orientations), and the spatially relative descriptors used herein are interpreted accordingly.

[0105] In the above discussion, unless otherwise stated, the terms "about", "approximately", "substantially" and the like, when used in describing a numerical value, mean a variation of + / - 10% of the value.

[0106] With the above ideal embodiments according to the present application as the inspiration, through the above description, relevant staff can make various changes and modifications without deviating from the technical idea of the present application. The technical scope of the present application is not limited to the content of the specification, and must be determined according to the scope of the claims.

Claims

1. A waste gas sulfuric acid mist sampling device, characterized in that, include: Base (100); A cooling assembly (200) is disposed above the base (100); A filter assembly (300) is disposed above the base (100); The outlet of the cooling pipe (210) of the cooling assembly (200) is connected to the inlet of the filter pipe (310) of the filter assembly (300); A sulfuric acid mist collector, which is connected to the outlet of the filter assembly (300); The cooling assembly (200) further includes multiple heat dissipation fins (220). Multiple heat dissipation fins (220) are sleeved on the cooling pipe (210); The cooling pipe (210) has a strip-shaped hole (211) on its side wall. A heat insulation block (212) is provided inside the strip-shaped hole (211); The inner wall of the cooling pipe (210) is fitted with an arc-shaped heat insulation plate (213); One end of the arc-shaped heat insulation plate (213) is inserted into the inner cavity of the heat insulation block (212), and the other end is arranged circumferentially along the inner wall of the cooling pipe (210); A driving component (230) is used to drive the arc-shaped heat insulation plate (213) to extend out of the inner cavity of the heat insulation block (212) or to be received into the inner cavity of the arc-shaped heat insulation plate (213); A temperature detection sensor (240) is provided at the outlet of the cooling pipe (210). The control module is configured to control the opening of the arc-shaped heat insulation plate (213) through the drive unit (230) based on the temperature data received from the temperature detection sensor (240) in order to adjust the heat dissipation efficiency of the cooling pipe (210) and thereby control the temperature of the sulfuric acid mist.

2. The waste gas sulfuric acid mist sampling device as described in claim 1, characterized in that, The drive unit (230) includes: A drive ring (231) is connected to the arc-shaped heat insulation plate (213) via a connecting rod (234); The drive motor (232) has a rotor fitted with a pulley, which is connected to the drive ring (231) via a belt (233).

3. The waste gas sulfuric acid mist sampling device as described in claim 2, characterized in that, Based on the temperature data received from the temperature detection sensor (240), the opening degree of the arc-shaped heat insulation plate (213) is controlled by the driving component (230), that is: The temperature data is compared with the data table to obtain the opening distance of the arc-shaped heat insulation board (213); Obtain the current position information of the curved heat insulation panel (213); Based on the current location information and opening distance, the position of the arc-shaped heat insulation plate (213) is adjusted to complete the opening adjustment.

4. The waste gas sulfuric acid mist sampling device as described in claim 2, characterized in that, The heat insulation block (212) has an insertion hole (212a) for inserting the arc-shaped heat insulation plate (213). Furthermore, the bottom surface of the socket (212a) is an inclined surface; When the arc-shaped heat insulation plate (213) is inserted into the insertion hole (212a), the heat insulation block (212) is pushed to move radially outward so that the cooling pipe (210) is locked with the heat dissipation fins (220).

5. The waste gas sulfuric acid mist sampling device as described in claim 4, characterized in that, The cross-section of the arc-shaped heat insulation plate (213) is an inverted trapezoid; The shape of the socket (212a) is adapted to the arc-shaped heat insulation plate (213); When the heat insulation block (212) moves radially outward, the insertion hole (212a) of the cooling pipe (210) is pushed outward in the circumferential direction so that the cooling pipe (210) is locked with the heat dissipation fins (220).

6. The waste gas sulfuric acid mist sampling device as described in claim 4, characterized in that, The outlet of the cooling pipe (210) is connected to the inlet of the filter pipe (310) via two flanges (214); Furthermore, a sealing ring (215) is provided between the two flanges (214).

7. The waste gas sulfuric acid mist sampling device as described in claim 6, characterized in that, The flange (214) connected to the outlet of the cooling pipe (210) has a sliding hole (214a) along the axial direction. A slider (214b) that passes through the flange (214) is slidably disposed in the sliding hole (214a). One end of the slider (214b) abuts against the sealing ring (215); The other end of the slider (214b) passes through the sliding hole (214a) of the flange (214) and is positioned below the heat insulation block (212); As the heat insulation block (212) moves radially outward, it pushes the slider (214b) to axially compress the sealing ring (215).

8. The waste gas sulfuric acid mist sampling device as described in claim 7, characterized in that, The top surface of the other end of the slider (214b) includes a horizontal section and an inclined section; Furthermore, the inclined section is located below the heat insulation block (212).

9. A method for operating the waste gas sulfuric acid mist sampling device as described in claim 1, characterized in that, The working method includes: The waste gas sulfuric acid mist is introduced into the cooling pipe (210) of the cooling component (200); The heat dissipation fins (220) dissipate heat from the sulfuric acid mist in the waste gas; Temperature sensor (240) detects the temperature of sulfuric acid mist in the exhaust gas after heat dissipation; The control module adjusts the opening degree of the arc-shaped heat insulation plate (213) based on the received temperature data; After the temperature data detected by the temperature sensor (240) reaches the preset range, the control module controls the sulfuric acid mist collector to sample the sulfuric acid mist in the waste gas.

10. The operating method of the waste gas sulfuric acid mist sampling device as described in claim 9, characterized in that, The control module adjusts the opening degree of the arc-shaped heat insulation plate (213) based on the received temperature data, that is: The temperature data is compared with the data table to obtain the opening distance of the arc-shaped heat insulation board (213); Obtain the current position information of the curved heat insulation panel (213); Based on the current location information and opening distance, the position of the arc-shaped heat insulation plate (213) is adjusted to complete the opening adjustment.

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