Support and ammonia escape detection device
By designing a support platform and a bracket with staggered support rods, the problem of unstable installation of the laser beam ammonia escape meter on the flue wall is solved, and a more stable measurement optical path and more accurate ammonia escape detection are achieved.
Patent Information
- Application Number
- CN202422372133.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-27
- Publication Date
- 2025-09-26
- Estimated Expiration
- 2034-09-27
AI Technical Summary
In the prior art, laser-beam ammonia escape meters are easily affected by vibration and temperature changes when installed on the flue wall, resulting in unstable measurements or indication drift.
A bracket is designed, including a support platform and multiple support rods. The support rods are staggered and connected to the flue structure in a non-collinear manner, so as to stably install a laser-beaming ammonia escape meter and enhance its connection stability.
The stability of the measuring optical path and the accuracy of the measuring results of the laser beam ammonia escape meter are improved, thus ensuring the reliability of ammonia escape detection.
Smart Images
Figure CN223389643U_ABST
Abstract
Description
Technical Field
[0001] The present disclosure relates to the technical field of thermal power generation, and in particular to a bracket and an ammonia escape detection device. Background Art
[0002] In order to effectively reduce the pollution of air and atmosphere caused by gases emitted during coal combustion in coal-fired power plants, it is necessary to strengthen the purification of flue gas. Currently, for flue gas purification, coal-fired power plants mostly use selective catalytic reduction denitrification technology, also known as SCR denitrification technology, which has a relatively mature process and high denitrification efficiency.
[0003] In the related art, the amount of ammonia after the denitrification reaction can be measured by a laser-beamed ammonia escape meter. For example, the laser-beamed ammonia escape meter can be installed in the denitrification outlet flue, wherein the transmitting and receiving probes of the ammonia escape meter are directly installed on the flue wall, which is easily affected by environmental factors such as the vibration of the flue wall or the strain of the flue due to temperature changes, resulting in the problem of unstable alignment of the optical path, which in turn leads to unstable measurement or unnecessary indication drift. Utility Model Content
[0004] The purpose of the present disclosure is to provide a bracket and an ammonia escape detection device, which can stably connect a laser-beaming ammonia escape meter to a flue, so as to at least partially solve the above technical problems.
[0005] In order to achieve the above-mentioned object, according to a first aspect of the present disclosure, a bracket is provided for installing a laser-beaming ammonia escape meter in a flue, the bracket comprising:
[0006] a support platform for connection to a structural wall of the flue; and
[0007] A support rod is connected to the support platform, the number of the support rods is set to be multiple, the multiple support rods are staggered and arranged so as not to be collinear, at least two of the multiple support rods are constructed as first support rods for directly connecting to the laser-beaming ammonia escape meter, and the remaining support rods are constructed as second support rods for connecting to the first support rod.
[0008] Optionally, the support platform is connected to at least a portion of the outer wall of the flue, and the support rod is arranged outside the flue.
[0009] Optionally, the support platform includes a first plate and a second plate constructed in an L-shape, and the number of the first support rods is set to two for respectively connecting to the two ends of the laser-beam ammonia escape meter, wherein one of the first support rods is connected to the first plate, and the other first support rod is connected to the second plate.
[0010] Optionally, the number of the second support rod is set to one and the second support rod is staggered and non-collinear with the two first support rods, and the second support rod is connected to the first plate body or the second plate body.
[0011] Optionally, the second support rod is connected to the two first support rods respectively through connecting members.
[0012] According to a second aspect of the present disclosure, an ammonia escape detection device is provided, comprising the bracket as described above and the laser-beaming ammonia escape meter.
[0013] Optionally, the laser beam ammonia escape meter includes a meter transmitting end, a measuring tube, and a meter receiving end. An air inlet is provided on the upstream side of the measuring tube, and an exhaust groove is provided on the downstream side of the measuring tube.
[0014] Optionally, the laser-beaming ammonia escape meter also includes a first transmitting end rigid pipe, a transmitting end flexible pipe, a second transmitting end rigid pipe, a second receiving end rigid pipe, a receiving end flexible pipe and a first receiving end rigid pipe. The first transmitting end rigid pipe is connected to the meter transmitting end, the first receiving end rigid pipe is connected to the meter receiving end, the first transmitting end rigid pipe, the transmitting end flexible pipe and the second transmitting end rigid pipe are connected in sequence and sleeved on the outside of the measuring tube, the first receiving end rigid pipe, the receiving end flexible pipe and the second receiving end rigid pipe are connected in sequence and sleeved on the outside of the measuring tube, and the second transmitting end rigid pipe and the second receiving end rigid pipe are used to pass through the structural wall of the flue.
[0015] Optionally, a transmitting end connecting flange is provided between the meter transmitting end and the first transmitting end rigid connecting pipe, a receiving end connecting flange is provided between the meter receiving end and the first receiving end rigid connecting pipe, and the number of the first support rods is set to two, one of which is connected to the transmitting end connecting flange, and the other is connected to the receiving end connecting flange.
[0016] Optionally, the distance between the meter transmitting end and the meter receiving end is less than 2m.
[0017] Through the above technical solution, the bracket can stably connect the laser beam ammonia escape meter to the flue, so that the measurement optical path is stable and the measurement results are accurate. Specifically, the support platform is used to connect to the structural wall of the flue, and the number of support rods can be set to multiple and used to connect to the support platform, wherein at least two of the multiple support rods can be constructed as first support rods, the first support rods are used to directly connect to the laser beam ammonia escape meter, and the remaining support rods in the multiple support rods can be constructed as second support rods, the second support rods are used to connect to the first support rod, and the second support rod and the first support rod are staggered and arranged so as not to be collinear, that is, the fixed point where the second support rod is connected to the support platform is not collinear with the fixed point where at least two first support rods are connected to the support platform, so that the staggered arrangement of multiple support rods not collinear can improve the stability of the laser beam ammonia escape meter when it is connected to the support platform, so as to improve its stability during measurement and the accuracy of the measurement results.
[0018] Other features and advantages of the present disclosure will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] The accompanying drawings are used to provide a further understanding of the present disclosure and constitute a part of the specification. Together with the following detailed description, they are used to explain the present disclosure but do not constitute a limitation of the present disclosure. In the accompanying drawings:
[0020] Figure 1 1 is a schematic diagram of the overall structure of an ammonia escape detection device provided in an exemplary embodiment of the present disclosure connected to a flue;
[0021] Figure 2 is a top view of an ammonia escape detection device provided in an exemplary embodiment of the present disclosure connected to a flue;
[0022] Figure 3 yes Figure 2 A magnified schematic diagram of part A;
[0023] Figure 4 yes Figure 2 A magnified schematic diagram of the structure of the transmitting end of the meter.
[0024] Description of Reference Numerals
[0025] 1. Laser-beamed ammonia escape meter; 11. Meter transmitting end; 111. Transmitting end connecting flange; 12. Measuring tube; 121. Air inlet; 122. Exhaust slot; 13. Meter receiving end; 131. Receiving end connecting flange; 14. First transmitting end rigid pipe; 15. Transmitting end flexible pipe; 16. Second transmitting end rigid pipe; 17. Second receiving end rigid pipe; 18. Receiving end flexible pipe; 19. First receiving end rigid pipe; 2. Support platform; 21. First plate; 22. Second plate; 3. Support rod; 31. First support rod; 32. Second support rod; 4. Connector; 5. Flue. DETAILED DESCRIPTION
[0026] The following describes the specific embodiments of the present disclosure in detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only used to illustrate and explain the present disclosure and are not intended to limit the present disclosure.
[0027] In this disclosure, unless otherwise specified, "inside" and "outside" refer to the inside and outside of the corresponding component's outline; "far" and "near" refer to the spatial distance of the corresponding component relative to another component. Furthermore, the terms "first," "second," and so on, used in this disclosure, are intended to distinguish one element from another and do not convey sequential or significant meanings. In the following description, unless otherwise indicated, identical numerals in different figures represent identical or similar elements.
[0028] According to the first aspect of the present disclosure, referring to Figures 1 to 4 As shown, the present disclosure provides a bracket for installing a laser beam ammonia escape meter 1 on a flue 5, and the bracket includes a support platform 2 and a support rod 3, wherein the support platform 2 is used to connect to the structural wall of the flue 5; the support rod 3 is connected to the support platform 2, and the number of the support rods 3 is set to be multiple, and the multiple support rods 3 are staggered and arranged so as not to be collinear, at least two of the multiple support rods 3 are constructed as first support rods 31 for directly connecting to the laser beam ammonia escape meter 1, and the remaining support rods 3 are constructed as second support rods 32 for connecting to the first support rod 31.
[0029] Through the above technical solution, the bracket can stably connect the laser beam ammonia escape meter 1 to the flue 5, so that the measurement optical path is stable and the measurement result is accurate. Specifically, the support platform 2 is used to connect to the structural wall of the flue 5, and the number of support rods 3 can be set to multiple and used to connect to the support platform 2, wherein at least two support rods 3 among the multiple support rods 3 can be constructed as first support rods 31, and the first support rods 31 are used to be directly connected to the laser beam ammonia escape meter 1. The remaining support rods 3 among the multiple support rods 3 can be constructed as second support rods 32, and the second support rods 32 are used to be connected to the first support rods 31. The second support rods 32 and the first support rods 31 are staggered and arranged so as not to be collinear, that is, the fixed point where the second support rod 32 is connected to the support platform 2 is not collinear with the fixed point where at least two first support rods 31 are connected to the support platform 2. Therefore, the staggered arrangement of the multiple support rods 3 not being collinear can improve the stability of the laser beam ammonia escape meter 1 when it is connected to the support platform 2, so as to improve its stability during measurement and the accuracy of the measurement results.
[0030] In an exemplary embodiment, referring to Figure 1 and Figure 2 As shown, the number of support rods 3 can be set to three, wherein two support rods 3 are constructed as first support rods 31, and the other support rod 3 is constructed as second support rod 32. The two first support rods 31 are respectively connected to the opposite ends of the laser beam ammonia escape meter 1, and the second support rod 32 is connected to the two first support rods 31 through a connecting member 4. The fixing point at which the second support rod 32 is connected to the support platform 2 is not collinear with the fixing point at which the two first support rods 31 are connected to the support platform 2, so that the fixing point at which the second support rod 32 is connected to the support platform 2 and the fixing point at which the two first support rods 31 are connected to the support platform 2 form a triangle. It can be understood that in some other possible embodiments not shown in the accompanying drawings, the second support rod 32 can also be connected to any one of the two first support rods 31 through a connecting member 4 or directly, and the present disclosure does not make specific limitations on this.
[0031] In some embodiments, reference Figure 1 and Figure 2 As shown, the support platform 2 can be connected to at least a portion of the outer wall of the flue 5. In this way, connecting the support platform 2 to the outer wall of the flue 5 allows the support rod 3 to be arranged outside the flue 5, reducing the possibility of the support rod 3 being corroded by the flue gas and improving the durability of the support rod 3. It is understood that in some other possible alternative embodiments not shown in the drawings, the support platform 2 can also be connected to the inner wall of the flue 5, and the surface of the support rod 3 can be treated with an anti-corrosion treatment, for example, an anti-corrosion layer can be applied to the surface of the support rod 3 or the material of the support rod 3 can be selected to be stainless steel, etc., and the present disclosure is not limited thereto.
[0032] In some embodiments, reference Figure 1 and Figure 2As shown, the support platform 2 may include a first plate 21 and a second plate 22 in an L-shaped configuration. The number of first support rods 31 may be two, each for connection to the respective ends of the laser ammonia escape meter 1. One first support rod 31 may be connected to the first plate 21, and the other first support rod 31 may be connected to the second plate 22. In this way, the first plate 21 and the second plate 22 may be connected to different side walls of the flue 5. The two first support rods 31 are connected to the respective ends of the laser ammonia escape meter 1, allowing the laser ammonia escape meter 1 to penetrate adjacent side walls of the flue 5. Thus, the measuring tube 12 (described later) of the laser ammonia escape meter 1 may be placed within the flue 5 for ammonia detection. It is understood that the connection point between the first plate 21 and the second plate 22 is not collinear with the line connecting the first support rod 31 and the second support rod 32, forming a triangular structure to enhance the stability of the laser ammonia escape meter 1 when connected to the support platform 2.
[0033] In some other possible alternative embodiments not shown in the accompanying drawings, the support platform 2 may also be constructed in a U-shape. For example, the support platform 2 may further include a third plate body connected to the second plate body 22, wherein one first support rod 31 may be connected to the first plate body 21, and another first support rod 31 may be connected to the third plate body. In this case, the connection point between the first plate body 21 and the second plate body 22, and the connection point between the second plate body 22 and the third plate body are not collinear with the line connecting the first support rod 31 and the second support rod 32, so as to improve the stability of the laser beam ammonia escape meter 1 when connected to the support platform 2. Of course, similarly, in this case, one of the first support rods 31 may be connected to the first plate body 21, and the other first support rod 31 may be connected to the second plate body 22, or one of the first support rods 31 may be connected to the second plate body 22, and the other first support rod 31 may be connected to the third plate body. This is not specifically limited in the present disclosure.
[0034] In some embodiments, reference Figure 1 and Figure 2 As shown, the number of second support rods 32 can be set to one and staggered with the two first support rods 31, and the second support rod 32 is connected to the first plate 21 or the second plate 22. In this way, the fixing point of the second support rod 32 and the support platform 2 is not collinear with the line connecting the first support rod 31 and the second support rod 32, forming a triangular structure, thereby improving the stability of the laser beam ammonia escape meter 1 when connected to the support platform 2. This disclosure exemplifies the connection of the second support rod 32 to the first plate 21. It is understood that the second support rod 32 can also be connected to the second plate 22, and this disclosure is not limited to this.
[0035] The second support rod 32 can be connected to the first support rod 31 in any suitable manner. In some exemplary embodiments, Figure 1 and Figure 2As shown, the second support rod 32 can be connected to the two first support rods 31 respectively through the connecting member 4. For example, the connecting member 4 can be configured as a connecting plate body, the first end of the connecting plate body can be connected to the second support rod 32, and the second end of the connecting plate body opposite to the first end can be connected to the first support rod 31. Alternatively, the connecting member 4 can be configured as a connecting rod body, the first end of the connecting rod body can be connected to the second support rod 32, and the second end of the connecting rod body opposite to the first end can be connected to the first support rod 31. In addition, the second support rod 32 can also be directly connected to either of the two first support rods 31, which is not specifically limited in this disclosure.
[0036] It is understood that in some other possible alternative embodiments not shown in the drawings, the number of the second support rods 32 can be set to two, wherein one second support rod 32 can be connected to the first plate body 21, and the second support rod 32 can be connected to the first support rod 31 provided on the first plate body 21 through the connecting member 4 or directly, and the other second support rod 32 can be connected to the second plate body 22, and the second support rod 32 can be connected to the first support rod 31 provided on the second plate body 22 through the connecting member 4 or directly. Of course, the number of the second support rods 32 can also be set to three, four, five, etc., and the present disclosure is not limited thereto.
[0037] It is understandable that the present disclosure sets the number of first support rods 31 to two and the number of second support rods 32 to one for exemplary purposes only. In addition, the number of support rods 3 may also be set to four, five, six, etc., wherein at least two support rods 3 are configured as first support rods 31 and are used to connect to the laser beam ammonia escape meter 1, and the remaining support rods 3 may be configured as second support rods 32. The second support rods 32 may be connected to the first support rods 31 via connectors 4, or the second support rods 32 may be directly connected to any one of the multiple first support rods 31. The fixing point at which at least one first support rod 31 and / or the second support rod 32 is connected to the support platform 2 is not collinear with the fixing points at which the remaining support rods 3 are connected to the support platform 2. The non-collinear staggered arrangement of the multiple support rods 3 can improve the stability of the laser beam ammonia escape meter 1 when connected to the support platform 2.
[0038] It is understood that the number of support rods 3 can be set to three, and the three support rods 3 can all be configured as first support rods 31. The three first support rods 31 can be respectively connected to the laser beam ammonia escape meter 1, and the fixing points of the three first support rods 31 connected to the support platform 2 are not collinear, so that the fixing points of the three first support rods 31 connected to the support platform 2 form a triangle. Of course, the number of support rods 3 can also be set to four, five, six, etc., and the support rods 3 can all be configured as first support rods 31, wherein the fixing points of at least one first support rod 31 connected to the support platform 2 are not collinear. This disclosure does not specifically limit this.
[0039] According to a second aspect of the present disclosure, an ammonia escape detection device is provided, comprising the bracket described above and a laser ammonia escape meter 1. Thus, the bracket can stably connect the laser ammonia escape meter 1 to the outer wall of the flue 5, thereby improving its stability during measurement and the accuracy of the measurement results.
[0040] In some embodiments, reference Figure 2 and Figure 3 As shown, the laser-beamed ammonia slip meter 1 includes a meter transmitter 11, a measuring tube 12, and a meter receiver 13. The upstream side of the measuring tube 12 is provided with an air inlet 121, and the downstream side of the measuring tube 12 is provided with an exhaust slot 122. The meter transmitter 11 can emit a laser beam of a specific wavelength, typically within the absorption spectrum of ammonia molecules. Ammonia molecules have strong absorption characteristics at specific wavelengths, typically in the near-infrared region, such as around 1.5 microns. When the laser beam passes through the flue duct 5, ammonia molecules in the flue gas absorb some of the laser energy. The meter receiver 13 receives the laser signal after passing through the flue gas and converts the received optical signal into an electrical signal for further processing. By comparing the laser intensity changes at the meter transmitter 11 and the meter receiver 13, the degree of laser absorption can be determined. The Beer-Lambert law can then be used to calculate the ammonia concentration, for example, to monitor ammonia slip in an SCR (selective catalytic reduction) system, thereby optimizing the operation of the denitrification system and reducing environmental pollution.
[0041] In some embodiments, reference Figure 2 and Figure 4 As shown, the laser beam ammonia escape meter 1 also includes a first transmitting end rigid pipe 14, a transmitting end flexible pipe 15, a second transmitting end rigid pipe 16, a second receiving end rigid pipe 17, a receiving end flexible pipe 18 and a first receiving end rigid pipe 19. The first transmitting end rigid pipe 14 is connected to the meter transmitting end 11, the first receiving end rigid pipe 19 is connected to the meter receiving end 13, the first transmitting end rigid pipe 14, the transmitting end flexible pipe 15 and the second transmitting end rigid pipe 16 are connected in sequence and sleeved on the outside of the measuring tube 12, the first receiving end rigid pipe 19, the receiving end flexible pipe 18 and the second receiving end rigid pipe 17 are connected in sequence and sleeved on the outside of the measuring tube 12, and the second transmitting end rigid pipe 16 and the second receiving end rigid pipe 17 are used to pass through the structural wall of the flue 5. In this way, the measuring tube 12 can be protected by the first transmitting end rigid tube 14, the transmitting end flexible tube 15, the second transmitting end rigid tube 16, the second receiving end rigid tube 17, the receiving end flexible tube 18 and the first receiving end rigid tube 19 to ensure the stability and accuracy of the laser beam ammonia escape meter 1 during ammonia detection.
[0042] The second transmitting end rigid pipe 16 and the second receiving end rigid pipe 17 can be fixed to the adjacent side walls of the flue 5 by welding, and the second transmitting end rigid pipe 16 and the second receiving end rigid pipe 17 are arranged along the same axis. In this way, the axis of the second transmitting end rigid pipe 16 and the second receiving end rigid pipe 17 and the adjacent side walls of the flue 5 form a triangle, thereby improving the connection stability of the laser beam ammonia escape meter 1.
[0043] In addition, the first transmitting end rigid tube 14, the transmitting end flexible tube 15 and the second transmitting end rigid tube 16 can be connected in sequence by welding, and the first receiving end rigid tube 19, the receiving end flexible tube 18 and the second receiving end rigid tube 17 can be connected in sequence by welding. In this way, during the installation process of the laser beam type ammonia escape meter 1, the transmitting end flexible tube 15 and the receiving end flexible tube 18 can be finely adjusted in the axial direction to facilitate the installation of the laser beam type ammonia escape meter 1, reduce the processing difficulty and improve the installation efficiency.
[0044] In some embodiments, reference Figure 2 and Figure 4 As shown, a transmitter connection flange 111 may be provided between the meter transmitter 11 and the first transmitter rigid pipe 14, and a receiver connection flange 131 may be provided between the meter receiver 13 and the first receiver rigid pipe 19. Two first support rods 31 are provided, one of which is connected to the transmitter connection flange 111, and the other is connected to the receiver connection flange 131. Thus, to improve structural stability and measurement stability, the transmitter connection flange 111 and the receiver connection flange 131 may be provided for connection to the first support rods 31, and the connection method may be welding, for example.
[0045] It can be understood that the second support rod 32 can be connected to the transmitting end connecting flange 111 and the receiving end connecting flange 131 respectively through the connecting member 4. For example, the connecting member 4 can be constructed as a connecting plate body, and the connecting plate body can be connected to the transmitting end connecting flange 111 and the receiving end connecting flange 131 respectively by bolt and nut connection. The present disclosure is not limited to this.
[0046] In some embodiments, reference Figure 1 and Figure 2 As shown, the distance between the meter transmitting end 11 and the meter receiving end 13 is less than 2m. It can be understood that the distance of the laser beam from the meter transmitting end 11 to the meter receiving end 13 determines the optical path length, which directly affects the measurement accuracy of the ammonia concentration. Therefore, reasonably setting the distance between the meter transmitting end 11 and the meter receiving end 13 can ensure the ammonia detection accuracy of the laser beam ammonia escape meter 1.
[0047] The preferred embodiments of the present disclosure are described in detail above in conjunction with the accompanying drawings. However, the present disclosure is not limited to the specific details of the above embodiments. Within the technical concept of the present disclosure, various simple modifications can be made to the technical solutions of the present disclosure, and these simple modifications all fall within the scope of protection of the present disclosure.
[0048] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any appropriate manner without contradiction. In order to avoid unnecessary repetition, the present disclosure will not further describe various possible combinations.
[0049] In addition, the various embodiments of the present disclosure may be arbitrarily combined, and as long as they do not violate the concept of the present disclosure, they should also be regarded as the contents disclosed by the present disclosure.
Claims
1. A bracket for installing a laser-beamed ammonia escape meter in a flue, characterized in that: The bracket comprises: a support platform for connection to a structural wall of the flue; and A support rod is connected to the support platform, the number of the support rods is set to be multiple, the multiple support rods are staggered and arranged so as not to be collinear, at least two of the multiple support rods are constructed as first support rods for directly connecting to the laser-beaming ammonia escape meter, and the remaining support rods are constructed as second support rods for connecting to the first support rod.
2. The bracket according to claim 1, wherein: The support platform is connected to at least a portion of the outer wall of the flue, and the support rod is arranged outside the flue.
3. The bracket according to claim 2, characterized in that The support platform includes a first plate and a second plate constructed in an L-shape, and the number of the first support rods is set to two for respectively connecting to the two ends of the laser-beam ammonia escape meter, wherein one of the first support rods is connected to the first plate, and the other first support rod is connected to the second plate.
4. The bracket according to claim 3, characterized in that The number of the second support rod is set to one and the second support rod is staggered and non-collinear with the two first support rods. The second support rod is connected to the first plate body or the second plate body.
5. The bracket according to claim 4, characterized in that The second support rod is connected to the two first support rods through connecting pieces.
6. An ammonia escape detection device, characterized in that: It comprises the bracket described in any one of claims 1 to 5 and the laser-beam ammonia escape meter.
7. The ammonia escape detection device according to claim 6, characterized in that: The laser beam ammonia escape meter comprises a meter transmitting end, a measuring tube, and a meter receiving end. An air inlet is provided on the upstream side of the measuring tube, and an exhaust slot is provided on the downstream side of the measuring tube.
8. The ammonia escape detection device according to claim 7, characterized in that: The laser beam ammonia escape meter also includes a first transmitting end rigid pipe, a transmitting end flexible pipe, a second transmitting end rigid pipe, a second receiving end rigid pipe, a receiving end flexible pipe and a first receiving end rigid pipe. The first transmitting end rigid pipe is connected to the meter transmitting end, the first receiving end rigid pipe is connected to the meter receiving end, the first transmitting end rigid pipe, the transmitting end flexible pipe and the second transmitting end rigid pipe are connected in sequence and sleeved on the outside of the measuring tube, the first receiving end rigid pipe, the receiving end flexible pipe and the second receiving end rigid pipe are connected in sequence and sleeved on the outside of the measuring tube, and the second transmitting end rigid pipe and the second receiving end rigid pipe are used to pass through the structural wall of the flue.
9. The ammonia escape detection device according to claim 8, characterized in that: A transmitting end connecting flange is provided between the meter transmitting end and the first transmitting end rigid connecting pipe, a receiving end connecting flange is provided between the meter receiving end and the first receiving end rigid connecting pipe, and the number of the first support rods is set to two, one of which is connected to the transmitting end connecting flange, and the other is connected to the receiving end connecting flange.
10. The ammonia escape detection device according to claim 7, characterized in that: The distance between the meter transmitting end and the meter receiving end is less than 2m.