Temperature measuring device and deacidification tower

Abstract

The utility model discloses a temperature measuring device and a deacidification tower. The temperature measuring device is used for measuring the temperature of an outlet of the deacidification tower body, the outlet of the deacidification tower body is communicated with a second flue, and the temperature measuring device comprises at least one temperature measuring assembly; the temperature measuring assembly comprises a thermometer and a mounting sleeve, the mounting sleeve is arranged above the second flue, the thermometer penetrates through the corresponding mounting sleeve, a part of the thermometer extends out of the mounting sleeve and extends into the second flue, an included angle is formed between the axis of the mounting sleeve and the horizontal plane, and the included angle is larger than the included angle between the axis of the mounting sleeve and the horizontal plane. The included angle is larger than zero. When the temperature measuring device is applied, attemperation water is not easy to enter the mounting sleeve, and water is not easy to accumulate in the mounting sleeve, so that the temperature sensing section of the thermometer is not easy to form plaster, and the accuracy of temperature measurement at the outlet of the deacidification tower is relatively guaranteed.

Description

Technical Field

[0001] The present application relates to the technical field of flue gas purification, and in particular to a temperature measuring device and a deacidification tower. Background Art

[0002] Flue gas generated by garbage incineration is often purified by a deacidification tower. The flue gas purified by the deacidification tower enters the dust removal equipment through the flue for dust removal. The outlet temperature of the deacidification tower affects the inlet temperature of the dust removal equipment. If the outlet temperature is too high, it is easy to damage the dust removal equipment and shorten the service life of the dust removal equipment. If the outlet temperature is too low, it is easy to waste cooling water. It can be seen that the measurement and control of the outlet temperature of the deacidification tower is very important.

[0003] Please refer to Figure 1 and Figure 2 , Figure 1 It is a horizontal structural schematic diagram of a deacidification tower outlet temperature measuring device in the related art, Figure 2 The vertical structure diagram of the deacidification tower in the related art. In the related art, the temperature measuring device includes three thermometers 06, each thermometer 06 is fixed to the outflow flue 04 through a mounting tube 07 and horizontally inserted into the outflow flue 04, the outlet temperature of the tower body 01 is measured by the three thermometers 06, and cooling water is set to adjust the outlet temperature of the tower body 01. When the deacidification tower is in operation, the flue gas enters the top of the tower body 01 through the inlet flue 03, and moves downward in a spiral shape under the action of the top guide plate (not shown in the figure). At the same time, the slurry and cooling water are atomized into tiny droplets by the atomization equipment 02 and sprayed into the tower body 01. The droplets move downward under the drive of the flue gas, and contact and mix with the flue gas to carry out a deacidification reaction. After the reaction, the mixture of flue gas and cooling water (hereinafter referred to as "the flue gas-water mixture") moves downward into the outlet flue 04 along the tangent direction of the original spiral motion at the outlet of the tower body 01 under the guidance of the outlet flue 04, and then enters the dust removal equipment 05 for dust removal. Since the mounting pipe 07 is arranged horizontally and there is a gap between the inner wall of the thermometer socket on the outlet flue 04 and the outer wall of the thermometer 06, the pipe mouth of the mounting pipe 07 is located within the diversion range of the smoke-water mixture in the inlet area of ​​the outlet flue 04. The cooling water can easily enter the mounting pipe 07 through the gap. After a long time, water can easily accumulate in the mounting pipe 07. The accumulated water can easily mix with the fly ash attached to the temperature sensing section of the thermometer 06 to form sludge, which reduces the response speed of the thermometer 06 and even causes the thermometer 06 to fail completely, resulting in a large temperature measurement error.

[0004] Therefore, how to provide a solution to overcome or alleviate the above-mentioned defects is still a technical problem that needs to be solved urgently by those skilled in the art. Utility Model Content

[0005] The purpose of the present application is to provide a temperature measuring device to relatively ensure the accuracy of the temperature measurement at the outlet of a deacidification tower. Another purpose of the present application is to provide a deacidification tower.

[0006] In order to solve the above technical problems, the present application provides a temperature measuring device for measuring the outlet temperature of a deacidification tower body, wherein the outlet of the deacidification tower body is connected to a second flue, and the temperature measuring device includes at least one temperature measuring component;

[0007] The temperature measuring assembly includes a thermometer and a mounting sleeve, wherein the mounting sleeve is arranged above the second flue, the thermometer is passed through the corresponding mounting sleeve, a portion of the thermometer extends out of the mounting sleeve and extends into the second flue, and an angle is formed between the axis of the mounting sleeve and the horizontal plane, and the angle is greater than zero.

[0008] Optionally, the temperature measuring device further includes a baffle;

[0009] The baffle is arranged on the inner wall of the second flue and is located on a side of the temperature measuring component close to the deacidification tower body.

[0010] Optionally, the thermometer has a temperature sensing section, and the lowest point of the baffle is higher than the highest point of the temperature sensing section.

[0011] Optionally, the baffles and the temperature measuring components are the same in number and are arranged in a one-to-one correspondence.

[0012] Optionally, the distance between the baffle and the corresponding lower end of the thermometer is 50-150 mm.

[0013] Optionally, the thermometer and the corresponding mounting sleeve are coaxially arranged, the angle is 90 degrees, and the baffle is parallel to the axis of the thermometer.

[0014] Optionally, the baffle and the second flue are connected by welding.

[0015] Optionally, there are more than three temperature measuring components, and the more than three temperature measuring components are arranged at equal intervals from front to back.

[0016] The present application also provides a deacidification tower, comprising the deacidification tower body, the second flue and the temperature measuring device.

[0017] Optionally, the deacidification tower further includes a controller, an atomizer and an alarm;

[0018] The atomizer is connected to a slurry supply pipeline and a cooling water supply pipeline, the slurry supply pipeline is provided with a slurry flow regulating valve, and the cooling water supply pipeline is provided with a cooling water flow regulating valve;

[0019] The input end of the controller is connected to the thermometer, and the output end of the controller is connected to the slurry flow regulating valve, the cooling water flow regulating valve, and the alarm.

[0020] The temperature measuring device provided by the present application is provided with at least one temperature measuring component, the temperature measuring component includes a thermometer and a mounting sleeve, the mounting sleeve is arranged above the second flue connected to the outlet of the deacidification tower body, the thermometer is inserted into the corresponding mounting sleeve, part of the thermometer extends out of the mounting sleeve and extends into the second flue, and there is an angle between the axis of the mounting sleeve and the horizontal plane, and the angle is not zero. When in use, the pipe mouth of the mounting sleeve is far away from the diversion range of the second flue at the outlet of the deacidification tower body to the smoke-water mixture, the cooling water in the smoke-water mixture is not easy to enter the mounting sleeve, and the pipe mouth of the mounting sleeve is downward, so that it is not easy for water to accumulate in the mounting sleeve, so that the temperature sensing section of the thermometer is not easy to form mortar, and the accuracy of the temperature measurement of the outlet of the deacidification tower is relatively guaranteed. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the transverse structure of a deacidification tower outlet temperature measuring device in the related art;

[0022] Figure 2 It is a schematic diagram of the vertical structure of a deacidification tower in the related art;

[0023] Figure 3 A schematic diagram of the longitudinal structure of the temperature measuring device according to the embodiment of the present application;

[0024] Figure 4 This is a schematic diagram of the transverse structure of the temperature measurement device of the embodiment provided in this application;

[0025] Figure 5 This is a schematic diagram of the longitudinal structure of the deacidification tower of the embodiment provided in this application.

[0026] The reference numerals in the above drawings are described as follows:

[0027] 01-tower body, 02-atomization equipment, 03-inflow flue, 04-outflow flue, 05-dust removal equipment, 06-thermometer, 07-installation pipe;

[0028] 1-temperature measuring assembly, 11-thermometer, 111-temperature sensing section, 12-installation sleeve, 13-first flange, 14-second flange;

[0029] 2- baffle;

[0030] 3-Deacidification tower body;

[0031] 4- Atomizer;

[0032] 51-slurry supply pipeline, 52-cooling water supply pipeline;

[0033] 61-slurry flow regulating valve, 62-cooling water flow regulating valve;

[0034] 7-First flue;

[0035] 8- Second flue;

[0036] 9-Dust collector. DETAILED DESCRIPTION

[0037] In order to enable those skilled in the art to better understand the present application, the present application is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0038] It should be noted that the directional terms such as "upper", "lower", "front", "back", "left", and "right" in this application are based on Figure 3 The vertical direction is the axial direction of the deacidification tower body 3. The flue gas moves from top to bottom in the deacidification tower body 3. The "right" is the front of the main flow direction of the flue gas in the second flue 8. The "left" is the opposite direction to the "right". The two sides corresponding to the left and right directions on the horizontal plane are the front and back directions. Please refer to the directions indicated by the arrows in the attached drawings. Among them, the horizontal direction is the front and back direction, and the vertical direction is the left and right direction.

[0039] The terms "first", "second", etc. mentioned in this application are only used to facilitate the description of two or more structures or components with the same or similar structures and / or functions, and do not imply any special limitation on the order and / or importance.

[0040] In this application, unless otherwise clearly specified and limited, the term "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or a communication connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0041] Please refer to Figure 3 , Figure 3 This is a schematic diagram of the longitudinal structure of the temperature measurement device of the embodiment provided in this application.

[0042] In the embodiment provided in the present application, the temperature measuring device is used to measure the outlet temperature of the deacidification tower body 3, the outlet of the deacidification tower body 3 is connected to the second flue 8, and the temperature measuring device includes at least one temperature measuring component 1; the temperature measuring component 1 includes a thermometer 11 and a mounting sleeve 12, the mounting sleeve 12 is arranged above the second flue 8, the thermometer 11 is inserted into the corresponding mounting sleeve 12, part of the thermometer 11 extends out of the mounting sleeve 12 and extends into the second flue 8, and there is an angle between the axis of the mounting sleeve 12 and the horizontal plane, and the angle is greater than zero. Among them, please refer to Figure 3 The lower end of the thermometer 11 has a temperature sensing section 111 , which is located in the second flue 8 and is used to sense the temperature inside the second flue 8 .

[0043] With such arrangement, the pipe opening at the lower end of the mounting sleeve 12 is away from the diversion range of the second flue 8 at the outlet of the deacidification tower body 3 for the flue gas and cooling water mixture. When the flue gas and water mixture enters the second flue 8 tangentially downward at the outlet of the deacidification tower body 3, the cooling water in the flue gas and water mixture is not easy to enter the mounting sleeve 12. In addition, the pipe opening of the mounting sleeve 12 is arranged downward, so even if the cooling water enters the mounting sleeve 12, it can easily flow out downward, so that water is not easy to accumulate in the mounting sleeve 12, and the outer surface of the temperature sensing section 111 of the thermometer 11 is not easy to form sludge, thereby relatively ensuring the response speed of the thermometer 11 and relatively ensuring the measurement accuracy of the temperature at the outlet of the deacidification tower body 3 by the thermometer 11.

[0044] Please refer to Figure 4 , Figure 4 This is a schematic diagram of the transverse structure of the temperature measurement device of the embodiment provided in this application.

[0045] In the embodiment provided in the present application, the temperature measuring device further includes a baffle 2 ; the baffle 2 is arranged on the inner wall of the second flue 8 and is located on the side of the temperature measuring component 1 close to the deacidification tower body 3 .

[0046] In this way, the baffle 2 can not only buffer or even block the smoke-water mixture to a certain extent, making the thermometer 11 less susceptible to direct erosion by smoke and cooling water, thereby ensuring the working stability of the thermometer 11 and extending the service life of the thermometer 11, but also can further make it difficult for cooling water to enter the installation sleeve 12, thereby further improving the measurement accuracy of the thermometer 11 accordingly.

[0047] In actual setting, the lowest point of the baffle 2 can be higher than the highest point of the temperature sensing section 111, can be between the lowest point and the highest point of the temperature sensing section 111, or can be lower than the lowest point of the temperature sensing section 111, without specific limitation.

[0048] like Figure 3 and Figure 4As shown, the lowest point of the baffle 2 is higher than the highest point of the temperature sensing section 111. In this way, the baffle 2 is relatively located above the temperature sensing section 111. In other words, the temperature sensing section 111 extends downward, and in the flow direction of the smoke-water mixture in the second flue 8, the baffle 2 is not easy to block the temperature sensing section 111, and the temperature sensing section 111 can directly contact the smoke-water mixture moving in the second flue 8, so that the temperature sensing section 111 can sense the temperature change of the smoke-water mixture in real time, relatively ensuring the consistency between the temperature measured by the thermometer 11 and the temperature at the outlet of the deacidification tower body 3, and further improving the measurement accuracy of the temperature at the outlet of the deacidification tower body 3.

[0049] In actual setting, when there is one temperature measuring component 1, the baffle 2 can be set to one; when there are more than two temperature measuring components 1, one baffle 2 can be set for all temperature measuring components 1, that is, the baffle 2 is located on the left side of all temperature measuring components 1 to buffer the smoke-water mixture for all temperature measuring components 1. Figure 3 As shown, a baffle 2 is provided for each temperature measuring component 1, that is, the number of baffles 2 and temperature measuring components 1 is the same and they are provided one-to-one. Each baffle 2 is located on the left side of the corresponding temperature measuring component 1 to buffer the smoke-water mixture for the corresponding temperature measuring component 1.

[0050] Obviously, it is more effective to provide a baffle 2 for each temperature measuring component 1, which is not only convenient for processing and installing the baffle 2, but also allows gaps to be left between adjacent baffles 2 in the front-to-rear direction, so that part of the smoke-water mixture can pass through the gap. On the basis of using the baffle 2 to ensure that the corresponding thermometer 11 is not easily directly eroded by the smoke-water mixture, the influence of the setting of the baffle 2 on the movement of the smoke-water mixture in the second flue 8 is reduced, and accordingly, the consistency between the temperature measured by the thermometer 11 and the temperature at the outlet of the deacidification tower body 3 can be further improved.

[0051] In specific settings, the distance between the baffle 2 and the lower end of the corresponding thermometer 11 can be 50-150 mm, specifically, 50 mm, 100 mm, 150 mm, or any value between 50-100 mm and 100-150 mm. In this way, it can ensure that the baffle 2 buffers the smoke-water mixture for the corresponding thermometer 11, and relatively ensure the consistency of the temperature measured by the thermometer 11 and the temperature at the outlet of the deacidification tower body 3.

[0052] It is not difficult to understand that the thermometer 11 can be coaxially arranged with the corresponding mounting sleeve 12, and the thermometer 11 and the mounting sleeve 12 are arranged downward, that is, they can be arranged vertically downward, or they can be arranged downward at an angle relative to the vertical direction, without specific restrictions; the baffle 2 can be parallel to the axis of the thermometer 11, or it can be arranged at an angle relative to the axis of the thermometer 11, without specific restrictions.

[0053] As an alternative, Figure 3 and Figure 4As shown, the angle between the axis of the installation sleeve 12 and the horizontal plane is 90 degrees, that is, the installation sleeve 12 and the thermometer 11 are vertically arranged, and the baffle 2 can be parallel to the axis of the thermometer 11, that is, the baffle 2 is also vertically arranged. In this way, it is further ensured that the installation sleeve 12 is not easy to accumulate water, and the measurement accuracy of the temperature at the outlet of the deacidification tower body 3 by the thermometer 11 is further ensured, and the effect of the baffle 2 on the thermometer 11 to buffer the smoke-water mixture is further ensured.

[0054] In actual setting, the specific connection method between the baffle 2 and the second flue 8 is not limited, for example, they can be connected by bolts or by welding.

[0055] As an optional solution, the baffle 2 is welded to the top inner wall of the second flue 8. In this way, the baffle 2 is easier to install, and the connection strength between the second flue 8 is relatively high, the structure is relatively stable, and it can withstand the impact of the smoke-water mixture at the entrance of the second flue 8 for a relatively long time, which relatively ensures the stability of the operation of the entire temperature measurement device.

[0056] It is worth noting that the second flue 8 can be a cylindrical flue with a circular transverse cross section, or a cuboid flue with a rectangular transverse cross section, without specific limitation. When the second flue 8 is a cylindrical flue, the installation sleeve 12 is arranged above the second flue 8, which can be understood as the installation sleeve 12 is located above the upper half of the second flue 8.

[0057] In the embodiments provided in this application, please combine Figure 3 and Figure 4 It is understood that the second flue 8 is a rectangular flue, the second flue 8 can be set horizontally, the installation sleeve 12 can be set on the top outer wall of the second flue 8, the thermometer 11 and the installation sleeve 12 are both perpendicular to the top wall of the second flue 8, so that the installation sleeve 12 is less likely to accumulate water, further ensuring the measurement accuracy of the thermometer 11 on the temperature at the outlet of the deacidification tower body 3.

[0058] It can be understood that the thermometer 11 is inserted into the corresponding installation sleeve 12 and fixed to the second flue 8 through the installation sleeve 12. The specific connection method between the thermometer 11 and the installation sleeve 12 is not limited. For example, it can be threaded connection, welding, or other methods. Figure 3 and Figure 4 As shown, a first flange 13 is arranged along the outer peripheral wall at the upper part of the thermometer 11, and a second flange 14 is arranged along the outer peripheral wall at the upper part of the mounting sleeve 12. The thermometer 11 can pass through the insertion hole in the mounting sleeve 12, and the first flange 13 and the second flange 14 can be connected by bolts (not shown in the figure) so that the thermometer 11 is inserted and fixed to the mounting sleeve 12.

[0059] In actual configuration, the number of temperature measuring components 1 can be one, two, or more than three, and the specific number is not limited.

[0060] As an alternative, please refer to Figure 3 and Figure 4 There are three temperature measuring components 1, and the three temperature measuring components 1 are arranged at equal intervals from front to back. In this way, the three temperature measuring components 1 can be used to measure the temperature at the same transverse cross-section but different positions in the inlet area of ​​the second flue 8, which relatively ensures that the measuring points are evenly distributed. The median or average value of the measurement results of the three temperature measuring components 1 can also be taken as the measured value of the temperature at the outlet of the deacidification tower body 3, reducing the influence of the abnormality or measurement error of individual measuring points on the measurement accuracy, and relatively ensuring the accuracy and stability of the temperature measurement at the outlet of the deacidification tower body 3. In addition, it is also possible to determine whether individual temperature measuring components 1 are damaged by combining the consistency of the measurement results of the three temperature measuring components 1, so as to promptly discover, repair or replace the damaged temperature measuring components 1, and relatively ensure the continuous and stable measurement of the temperature at the outlet of the deacidification tower body 3.

[0061] Please refer to Figure 5 , Figure 5 This is a schematic diagram of the longitudinal structure of the deacidification tower of the embodiment provided in this application.

[0062] In an embodiment of the present application, a deacidification tower is also provided, comprising a deacidification tower body 3, a second flue 8 and the temperature measuring devices in all the above embodiments.

[0063] It can be understood that the outlet of the deacidification tower body 3 in the deacidification tower can be connected to the dust collector 9 through the second flue 8. Since the above-mentioned temperature measuring device can relatively guarantee the measurement accuracy of the temperature at the outlet of the deacidification tower body 3, the deacidification tower with the temperature measuring device can accurately adjust the outlet temperature according to the difference between the measured outlet temperature and the preset temperature, thereby adjusting the temperature at the inlet of the dust collector 9 in the subsequent process, relatively extending the service life of the dust collector 9, and relatively ensuring the smooth progress of the deacidification work and the effect of flue gas purification.

[0064] In the embodiments provided in this application, Figure 5 As shown, the deacidification tower also includes a controller (not shown in the figure), an atomizer 4 and an alarm (not shown in the figure); the atomizer 4 is connected to a slurry supply pipeline 51 and a cooling water supply pipeline 52, the slurry supply pipeline 51 is provided with a slurry flow regulating valve 61, and the cooling water supply pipeline 52 is provided with a cooling water flow regulating valve 62; the input end of the controller is connected to the thermometer 11, and the output end of the controller is connected to the slurry flow regulating valve 61, the cooling water flow regulating valve 62, and the alarm.

[0065] Please combine Figure 5It is understood that the top of the deacidification tower body 3 is connected to the first flue 7, which can be arranged horizontally. The flue gas enters the top of the deacidification tower body 3 through the first flue 7, and then moves downward in a spiral under the action of the top guide (not shown in the figure). The slurry enters the atomizer 4 through the slurry supply pipe 51, and the cooling water enters the atomizer 4 through the cooling water supply pipe 52. The slurry and the cooling water form tiny droplets under the atomization action of the atomizer 4 and are sprayed into the deacidification tower body 3. The droplets move downward under the drive of the flue gas. At the same time, the droplets and the flue gas are fully contacted and mixed to perform a deacidification reaction. Part of the reactants are discharged from the bottom of the deacidification tower body 3, and part of the reactants, cooling water and flue gas enter the interior of the second flue 8 tangentially downward.

[0066] When in use, the temperature can be adjusted and alarmed according to the outlet temperature of the deacidification tower body 3 measured by the temperature measuring device. For example, a first temperature threshold and a second temperature threshold can be set, and the second temperature threshold is lower than the first temperature threshold. When the outlet temperature measurement value is higher than the first temperature threshold, the controller can control the increase of the opening of the cooling water flow regulating valve 62 to increase the flow of cooling water to reduce the outlet temperature, thereby reducing the inlet temperature of the dust collector 9, and ensuring that the dust collector 9 is not easily damaged by the high-temperature smoke-water mixture. For example, when the dust collector 9 is a bag dust collector, it is ensured that the bag of the bag dust collector is not easily damaged by high temperature; when the outlet temperature measurement value is lower than the second temperature threshold, the controller can control the reduction of the opening of the cooling water flow regulating valve 62 to reduce the flow of cooling water to relatively increase the outlet temperature, thereby reducing the waste of cooling water and reducing the cost of deacidification. When the outlet temperature measurement value is higher than the first temperature threshold or lower than the second temperature threshold, the controller can send an alarm signal to the alarm to control the alarm to alarm to remind the staff to take corresponding measures.

[0067] Of course, when the outlet temperature measurement values ​​of the three temperature measuring components 1 are inconsistent and the deviation exceeds the preset deviation threshold, the controller can also control the alarm to sound an alarm.

[0068] It is not difficult to understand that if the temperature measuring device in the relevant technology is used to measure the outlet temperature of the deacidification tower body 3, the thermometer 06 and the mounting pipe 07 are arranged on the side wall of the outlet flue 04 and are arranged horizontally, and are located within the diversion range of the smoke-water mixture in the inlet area of ​​the outlet flue 04. Water is easily accumulated in the mounting pipe 07, and the part of the thermometer 06 located in the outlet flue 04, especially the temperature-sensing section, is easily attached with fly ash. The accumulated water in the mounting pipe 07 is easy to penetrate into the temperature-sensing section of the thermometer 06 under the action of the attached fly ash, forming sludge in the temperature-sensing section, reducing the response speed and measurement accuracy of the thermometer 06, and also reducing the temperature of the thermometer 06 itself, further reducing the measurement accuracy of the thermometer 06. In this way, inaccurate outlet temperature measurement values ​​may lead to inaccurate outlet temperature control, so that the inlet temperature of the subsequent bag-type dust collector may be too high and damage the bags, and may even cause the alarm to alarm frequently, affecting the stable operation of the entire flue gas purification system.

[0069] In the embodiment of the present application, the deacidification tower uses the temperature measuring device provided in the above embodiment to measure the outlet temperature of the deacidification tower body 3. The nozzle of the lower end of the installation sleeve 12 is far away from the above diversion range, so that the cooling water is not easy to enter the installation sleeve 12, and the nozzle of the installation sleeve 12 is set downward, so that even if the cooling water enters the installation sleeve 12, it can easily flow downward, so that it is not easy to accumulate water in the installation sleeve 12, and the temperature sensing section 111 of the thermometer 11 is not easy to form sludge, which can ensure the response speed and measurement accuracy of the temperature sensing section 111. In addition, the baffle 2 equipped with the thermometer 11 can buffer the smoke-water mixture to a certain extent, so that the smoke and cooling water are not easy to directly flush the thermometer 11, extend the service life of the thermometer 11, ensure the stability of the thermometer 11, and further ensure that the cooling water is not easy to enter the installation sleeve 12, thereby further ensuring the response speed and measurement accuracy of the temperature sensing section 111. In this way, the thermometer 11 can measure the outlet temperature of the deacidification tower body 3 relatively stably, quickly and accurately, so that the cooling water flow regulating valve 62 can be accurately controlled to achieve accurate control of the outlet temperature of the deacidification tower body 3. Correspondingly, the inlet temperature of the dust collector 9 can also be accurately controlled, and it is not easy to damage the dust collector 9 due to excessive inlet temperature, thereby extending the service life of the dust collector 9. In addition, the accuracy of the alarm is also improved, which can relatively guarantee the stable operation of the entire flue gas purification system.

[0070] The principles and implementation methods of the present application are described in this article using specific examples. The description of the above embodiments is only used to help understand the device and its core idea of ​​the present application. It should be pointed out that for ordinary technicians in this technical field, without departing from the principles of the present application, several improvements and modifications can be made to the present application, and these improvements and modifications also fall within the scope of protection of the claims of the present application.

Claims

1. A temperature measuring device for measuring the outlet temperature of a deacidification tower body (3), wherein the outlet of the deacidification tower body (3) is connected to a second flue (8), characterized in that: The temperature measuring device comprises at least one temperature measuring component (1); The temperature measuring assembly (1) comprises a thermometer (11) and a mounting sleeve (12), wherein the mounting sleeve (12) is arranged above the second flue (8), the thermometer (11) is inserted into the corresponding mounting sleeve (12), a portion of the thermometer (11) extends out of the mounting sleeve (12) and into the second flue (8), and an angle is formed between the axis of the mounting sleeve (12) and a horizontal plane, and the angle is greater than zero.

2. The temperature measuring device according to claim 1, characterized in that: The temperature measuring device also includes a baffle (2); The baffle (2) is arranged on the inner wall of the second flue (8) and is located on a side of the temperature measuring component (1) close to the deacidification tower body (3).

3. The temperature measuring device according to claim 2, characterized in that: The thermometer (11) has a temperature sensing section (111), and the lowest point of the baffle (2) is higher than the highest point of the temperature sensing section (111).

4. The temperature measuring device according to claim 2, characterized in that: The baffles (2) and the temperature measuring components (1) are of the same number and are arranged in a one-to-one correspondence.

5. The temperature measuring device according to claim 4, characterized in that: The distance between the baffle (2) and the corresponding lower end of the thermometer (11) is 50-150 mm.

6. The temperature measuring device according to claim 2, characterized in that: The thermometer (11) and the corresponding mounting sleeve (12) are coaxially arranged, the included angle is 90 degrees, and the baffle (2) is parallel to the axis of the thermometer (11).

7. The temperature measuring device according to claim 2, characterized in that: The baffle (2) and the second flue (8) are connected by welding.

8. The temperature measuring device according to any one of claims 1 to 7, characterized in that: There are more than three temperature measuring components (1), and the more than three temperature measuring components (1) are arranged at equal intervals from front to back.

9. A deacidification tower, characterized in that: It comprises the deacidification tower body (3), the second flue (8) and the temperature measuring device according to any one of claims 1 to 8.

10. The deacidification tower according to claim 9, characterized in that The deacidification tower also includes a controller, an atomizer (4) and an alarm; The atomizer (4) is connected to a slurry supply pipeline (51) and a cooling water supply pipeline (52); the slurry supply pipeline (51) is provided with a slurry flow regulating valve (61), and the cooling water supply pipeline (52) is provided with a cooling water flow regulating valve (62); The input end of the controller is connected to the thermometer (11), and the output end of the controller is connected to the slurry flow regulating valve (61), the cooling water flow regulating valve (62), and the alarm.

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