Device for measuring ammonia concentration in flue gas in denitration device

Abstract

The utility model discloses a device for measuring ammonia concentration in flue gas in a denitration device, and relates to the technical field of ammonia gas measurement. The communicating pipe is embedded in the upper surface of the connecting pipe, one end of the communicating pipe is communicated with the interior of the connecting pipe, the isolating piece is embedded in the upper surface of the communicating pipe, a sampling pipe is embedded in the upper surface of the isolating piece, one surface of the isolating piece is provided with an air hole, and the air hole is communicated with the interior of the communicating pipe and the interior of the sampling pipe; a sliding groove is formed in one surface of the isolation piece and communicates with the air holes, and an isolation plate is embedded in the sliding groove. Through the structure of the isolation piece, the isolation plate and the pulling plate, sampling of the sampling pipe is facilitated, meanwhile, flue gas is conveniently isolated in the sampling pipe after sampling, later measurement of an ammonia gas detector is facilitated, measurement errors caused by the fact that the flue gas flows all the time are avoided, and the accuracy of final measurement is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of ammonia measurement, and particularly relates to a device for measuring the ammonia concentration in flue gas in a denitration device. Background Technique

[0002] Ammonia is an inorganic compound, a colorless gas with a strong pungent odor. Ammonia can turn moist red litmus paper blue, can produce a small amount of hydroxide ions in water, showing weak alkalinity. It can be liquefied by pressurization at normal temperature. It will decompose into nitrogen and hydrogen at high temperature, having a reducing effect. In the presence of a catalyst, ammonia can be oxidized to nitric oxide. Ammonia is commonly used in the production of liquid nitrogen, ammonia water, nitric acid, ammonium salts, amines, etc. Ammonia can be directly synthesized from nitrogen and hydrogen, and can burn the mucous membranes of the skin, eyes and respiratory organs. If a person inhales too much, it can cause lung swelling and even death.

[0003] In the prior art, the structure of the device for measuring the ammonia concentration in flue gas in a denitration device is generally relatively simple. During the detection process, the flue gas is always in a flowing state, resulting in being easily affected during measurement, making the final measurement result inaccurate. Content of the Utility Model

[0004] The purpose of the utility model is to provide a device for measuring the ammonia concentration in flue gas in a denitration device, so as to solve the problem of easy inaccuracy in the existing ones.

[0005] To solve the above technical problems, the utility model is realized through the following technical solutions:

[0006] The utility model is a device for measuring the ammonia concentration in flue gas in a denitration device, including a connecting pipe, a communicating pipe and an isolating member. The communicating pipe is embedded on the upper surface of the connecting pipe. One end of the communicating pipe is communicated with the inside of the connecting pipe. The isolating member is embedded on the upper surface of the communicating pipe. A sampling pipe is embedded on the upper surface of the isolating member. One surface of the isolating member is provided with air vents, and the air vents are communicated with the inside of the communicating pipe and the sampling pipe. One surface of the isolating member is provided with a sliding groove, and the sliding groove is communicated with the air vents. An isolating plate is embedded in the sliding groove, which is convenient for sampling of the sampling pipe, and at the same time is convenient for isolating the flue gas inside the sampling pipe after sampling, facilitating the subsequent measurement by an ammonia gas detector, avoiding measurement errors caused by the continuous flow of the flue gas, and improving the accuracy of the final measurement.

[0007] Furthermore, one end of the isolating plate is mutually matched with the air vents, the circumferential side surface of the isolating plate is slidably matched with the inside of the sliding groove, the other end of the isolating plate extends to the outside of the sliding groove, and a pulling plate is welded to the other end of the isolating plate.

[0008] Further, guide rods are welded to both ends of one surface of the pull plate. The two guide rods are respectively arranged on both sides of the isolation member, and guide plates are welded to both opposite surfaces of the isolation member.

[0009] Further, guide grooves are arranged on one surface of each of the two guide plates. The positions of the two guide grooves are adapted to the positions of the two guide rods, and one ends of the two guide rods respectively penetrate into the interiors of the two guide grooves.

[0010] Further, the circumferential sides of the two guide rods are respectively in sliding fit with the interiors of the two guide grooves, facilitating the movement of the pull plate and the isolation plate, improving the convenience and stability of the device during use. Limit plates are welded to one ends of the two guide rods.

[0011] Further, internal threads are arranged on the inner circumferential side of the sampling tube, and a screwed member is screwed inside the sampling tube. One end of the screwed member extends to the outside of the sampling tube.

[0012] Further, an ammonia detector is embedded on the upper surface of one end of the screwed member, facilitating the installation and disassembly of the ammonia detector. A display screen is embedded on one surface of the ammonia detector.

[0013] Further, connection flanges are welded to both ends of the connecting pipe. Sealing rings are arranged on one surface of each of the two connection flanges. One end of the connecting pipe is connected to the flue gas discharge pipe, and the other end of the connecting pipe is connected to the flue gas treatment device.

[0014] The present utility model has the following beneficial effects:

[0015] 1. Through the isolation member, isolation plate and pull plate structures, the present utility model facilitates the sampling of the sampling tube, and at the same time facilitates isolating the flue gas inside the sampling tube after sampling, facilitating the subsequent measurement by the ammonia detector, avoiding measurement errors caused by the continuous flow of the flue gas, and improving the accuracy of the final measurement.

[0016] 2. Through the guide rod and guide plate structures, the present utility model facilitates the movement of the pull plate and the isolation plate, improves the convenience and stability of the device during use, and at the same time, through the screwed member structure, facilitates the installation and disassembly of the ammonia detector.

[0017] Of course, it is not necessary for any product implementing the present utility model to simultaneously achieve all the above-mentioned advantages. Description of the Drawings

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for describing the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0019] Figure 1 This is a schematic structural view of a device for measuring the ammonia concentration in flue gas in a denitration device according to the present utility model;

[0020] Figure 2 This is a front view structural view of a device for measuring the ammonia concentration in flue gas in a denitration device according to the present utility model;

[0021] Figure 3 This is a right view structural view of a device for measuring the ammonia concentration in flue gas in a denitration device according to the present utility model;

[0022] Figure 4 This is a top view structural view of a device for measuring the ammonia concentration in flue gas in a denitration device according to the present utility model.

[0023] In the attached drawings, the list of components represented by each reference numeral is as follows:

[0024] 1. Connecting pipe; 2. Connecting flange; 3. Sealing ring; 4. Connecting pipe; 5. Isolation member; 6. Sampling pipe; 7. Chute; 8. Isolation plate; 9. Pulling plate; 10. Guide plate; 11. Guide groove; 12. Guide rod; 13. Limiting plate; 14. Screwing member; 15. Ammonia detector; 16. Display screen. Specific embodiments

[0025] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the attached drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

[0026] In the description of the present utility model, it should be understood that the terms "upper", "middle", "outer", "inner", etc. indicating the orientation or position relationship are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present utility model.

[0027] Please refer to Figures 1-4As shown in the figure, the utility model relates to a device for measuring the ammonia concentration in flue gas in a denitration device, which includes a connecting pipe 1, a communicating pipe 4 and a separating member 5. The communicating pipe 4 is embedded on the upper surface of the connecting pipe 1. One end of the communicating pipe 4 is communicated with the inside of the connecting pipe 1. The separating member 5 is embedded on the upper surface of the communicating pipe 4. A sampling pipe 6 is embedded on the upper surface of the separating member 5. One surface of the separating member 5 is provided with air vents, and the air vents are communicated with the inside of the communicating pipe 4 and the sampling pipe 6. One surface of the separating member 5 is provided with a sliding groove 7, and the sliding groove 7 is communicated with the air vents. A separating plate 8 is embedded in the sliding groove 7, which is convenient for sampling of the sampling pipe 6. At the same time, it is convenient to isolate the flue gas inside the sampling pipe 6 after sampling, which is convenient for the later measurement of the ammonia gas detector 15, avoids measurement errors caused by the continuous flow of the flue gas, and improves the accuracy of the final measurement.

[0028] One end of the separating plate 8 cooperates with the air vents, the circumferential side surface of the separating plate 8 is slidably matched with the inside of the sliding groove 7, the other end of the separating plate 8 extends to the outside of the sliding groove 7, and a pulling plate 9 is welded to the other end of the separating plate 8. Two guide rods 12 are welded to both ends of one surface of the pulling plate 9. The two guide rods 12 are respectively arranged on both sides of the separating member 5. Guide plates 10 are welded to both opposite surfaces of the separating member 5.

[0029] Guide grooves 11 are provided on one surface of the two guide plates 10. The positions of the two guide grooves 11 are adapted to the positions of the two guide rods 12. One ends of the two guide rods 12 respectively penetrate into the inside of the two guide grooves 11.

[0030] The circumferential side surfaces of the two guide rods 12 are respectively slidably matched with the inside of the two guide grooves 11, which is convenient for coordinating the movement of the pulling plate 9 and the separating plate 8, and improves the convenience and stability of the device during use. Limit plates 13 are welded to one ends of the two guide rods 12.

[0031] Internal threads are provided on the circumferential side surface inside the sampling pipe 6. A screwing member 14 is screwed inside the sampling pipe 6. One end of the screwing member 14 extends to the outside of the sampling pipe 6. An ammonia gas detector 15 is embedded on the upper surface of one end of the screwing member 14, which is convenient for the installation and disassembly of the ammonia gas detector 15. A display screen 16 is embedded on one surface of the ammonia gas detector 15.

[0032] Connecting flanges 2 are welded to both ends of the connecting pipe 1. Sealing rings 3 are provided on one surface of the two connecting flanges 2. One end of the connecting pipe 1 is connected to a flue gas discharge pipe, and the other end of the connecting pipe 1 is connected to a flue gas treatment device.

[0033] Please refer to Figures 1-4As shown, the utility model is a device for measuring the ammonia concentration in the flue gas in the denitrification device, and the method of using the utility model is as follows: through the structure of the isolation member 5, the isolation plate 8 and the pull plate 9, the sampling of the sampling tube 6 is convenient, and the flue gas is isolated inside the sampling tube 6 after sampling, which is convenient for the later measurement of the ammonia detector 15, avoiding measurement errors caused by the continuous flow of flue gas, and improving the accuracy of the final measurement; through the structure of the guide rod 12 and the guide plate 10, it is convenient to cooperate with the movement of the pull plate 9 and the isolation plate 8, thereby improving the convenience and stability of the device during use, and at the same time, through the structure of the screw connection 14, the installation and disassembly of the ammonia detector 15 is convenient.

[0034] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0035] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A device for measuring the ammonia concentration in flue gas in a denitration device, comprising a connecting pipe (1), a connecting pipe (4) and an insulating member (5), characterized in that: The connecting tube (4) is mounted on the upper surface of the connecting tube (1), one end of the connecting tube (4) is connected to the inside of the connecting tube (1), the insulating member (5) is mounted on the upper surface of the connecting tube (4), a sampling tube (6) is mounted on the upper surface of the insulating member (5), a vent hole is provided on one surface of the insulating member (5), the vent hole is connected to the inside of the connecting tube (4) and the sampling tube (6), a slide groove (7) is provided on one surface of the insulating member (5), the slide groove (7) is connected to the vent hole, and an insulating plate (8) is mounted inside the slide groove (7).

2. The device for measuring ammonia concentration in flue gas in a denitration device according to claim 1, characterized in that: One end of the isolation plate (8) cooperates with the air vent, the peripheral side of the isolation plate (8) slides with the inside of the slide groove (7), the other end of the isolation plate (8) extends to the outside of the slide groove (7), and a pull plate (9) is welded to the other end of the isolation plate (8).

3. The device for measuring ammonia concentration in flue gas in a denitration device according to claim 2, characterized in that: Guide rods (12) are welded to both ends of one surface of the pull plate (9), and the two guide rods (12) are respectively arranged on both sides of the isolation member (5), and guide plates (10) are welded to both opposite surfaces of the isolation member (5).

4. The device for measuring the ammonia concentration in flue gas in a denitration device according to claim 3, characterized in that: A guide groove (11) is provided on one surface of the two guide plates (10), the positions of the two guide grooves (11) are adapted to the positions of the two guide rods (12), and one end of the two guide rods (12) respectively passes through the inside of the two guide grooves (11).

5. The device for measuring ammonia concentration in flue gas in a denitration device according to claim 4, characterized in that: The peripheral side surfaces of the two guide rods (12) are respectively slidably matched with the insides of the two guide grooves (11), and one end of the two guide rods (12) is welded with a limiting plate (13).

6. The device for measuring ammonia concentration in flue gas in a denitration device according to claim 1, characterized in that: The inner peripheral side surface of the sampling tube (6) is provided with an internal thread, and a threaded connection piece (14) is threadedly connected to the inside of the sampling tube (6), and one end of the threaded connection piece (14) extends to the outside of the sampling tube (6).

7. The device for measuring ammonia concentration in flue gas in a denitration device according to claim 6, characterized in that: An ammonia detector (15) is mounted on the upper surface of one end of the screw connection (14), and a display screen (16) is mounted on one surface of the ammonia detector (15).

8. The device for measuring ammonia concentration in flue gas in a denitration device according to claim 1, characterized in that: Both ends of the connecting pipe (1) are welded with connecting flanges (2), and a sealing ring (3) is provided on one surface of the two connecting flanges (2). One end of the connecting pipe (1) is connected to the smoke exhaust pipe, and the other end of the connecting pipe (1) is connected to the smoke treatment device.

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