A power station boiler flue gas mixed sampling and analysis device

Abstract

The utility model discloses a mixed sampling and analysis device for flue gas of a power station boiler, comprising a collection box, a sealing cover is installed on the upper side wall of the collection box, a flue gas analyzer is fixedly connected to the upper side wall of the sealing cover, a probe penetrating the lower side wall of the sealing cover is electrically connected to the lower side wall of the flue gas analyzer, a fixed cover is surrounded on the outer side of the probe and is attached to the lower side wall of the sealing cover, a fixing rod is commonly connected between the side walls of the fixed cover and the inner wall of the collection box, and an air pump is fixedly connected to the outer wall of the fixed cover, the output end of the air pump is connected to the inside of the fixed cover, a motor is fixedly connected to the lower side wall of the fixed cover, the output shaft end of the motor is vertically downward and fixedly connected to a sealing disk, and a collection hole is opened on the upper side wall of the sealing disk. The utility model can realize the collection and analysis of flue gas information at different collection points by setting collection tubes of different lengths to ensure the detection accuracy of the data.

Description

Technical Field

[0001] The utility model relates to the technical field of flue gas collection, and in particular to a mixed sampling and analysis device for flue gas from a power station boiler. Background Art

[0002] Thermal power generation still accounts for a large proportion in daily production and life. In order to ensure that the flue gas emissions from thermal power generation meet environmental protection requirements, the flue gas emitted by power plants needs to be tested.

[0003] However, the existing testing equipment has a single sampling point and the data is highly random, resulting in low accuracy of the sampling results. Utility Model Content

[0004] The utility model aims to solve the problems in the background technology and proposes a power station boiler flue gas mixed sampling and analysis device.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A mixed sampling and analysis device for flue gas from a power station boiler comprises a collection box, a sealing cover is installed on the upper side wall of the collection box, a flue gas analyzer is fixedly connected to the upper side wall of the sealing cover, a probe penetrating the lower side wall of the sealing cover is electrically connected to the lower side wall of the flue gas analyzer, a fixed cover is arranged on the outer side of the probe and is attached to the lower side wall of the sealing cover, a fixing rod is commonly connected between the side walls of the fixed cover and the inner wall of the collection box, an air pump is fixedly connected to the outer wall of the fixed cover, an output end of the air pump is connected to the interior of the fixed cover, a motor is fixedly connected to the lower side wall of the fixed cover, an output shaft end of the motor is vertically downward and fixedly connected to a sealing disk, a collection hole is provided on the upper side wall of the sealing disk, and a plurality of collection tubes fixedly penetrating the inner bottom wall of the collection box are provided on the lower side wall of the sealing disk, and the length of each of the collection tubes is different.

[0007] Preferably, a bolt is threadedly connected between the upper side wall of the sealing cover and the upper side wall of the collection box.

[0008] Preferably, the diameter of each of the collection tubes is equal.

[0009] Preferably, the upper end of each of the collection tubes is attached to the lower side wall of the sealing disk.

[0010] Preferably, the motor is a servo motor of model MR-J2S-10A.

[0011] Compared with the existing technology, the advantages of this power station boiler flue gas mixed sampling and analysis device are:

[0012] The rotation of the sealing disk driven by a motor can change the alignment of the collection holes and collection tubes of different lengths. Then, by using the cooperation of the probe and the flue gas analyzer, the collection and analysis of flue gas information at different collection points can be realized to ensure the accuracy of data detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the structure of a power station boiler flue gas mixed sampling and analysis device proposed by the utility model;

[0014] Figure 2 This is a top view of the connection between the fixed cover and the air pump in a power station boiler flue gas mixed sampling and analysis device proposed by the utility model;

[0015] Figure 3 This is a top view of a sealing disk in a power station boiler flue gas mixed sampling and analysis device proposed by the utility model;

[0016] Figure 4 The utility model provides a top view of the connection between a plurality of collection tubes and a collection box in a power station boiler flue gas mixed sampling and analysis device.

[0017] In the figure: 1 collection box, 2 sealing cover, 3 flue gas analyzer, 4 probe, 5 fixing rod, 6 fixing cover, 7 air pump, 8 motor, 9 sealing plate, 10 collection hole, 11 collection tube, 12 bolt. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0019] Reference Figure 1-Figure 4 A mixed sampling and analysis device for power station boiler flue gas comprises a collection box 1, a sealing cover 2 is installed on the upper side wall of the collection box 1, a flue gas analyzer 3 is fixedly connected to the upper side wall of the sealing cover 2, and a probe 4 which penetrates the lower side wall of the sealing cover 2 is electrically connected to the lower side wall of the flue gas analyzer 3. When in use, the collection box 1 can be installed in the exhaust channel of the power station boiler, and the flue gas analyzer 3 can also be connected to an external host so as to obtain the information detected by it in time. Bolts 12 are threadedly connected between the upper side wall of the sealing cover 2 and the upper side wall of the collection box 1, and the sealing cover 2 can be disassembled by unscrewing each bolt 12 so as to repair and replace the flue gas analyzer 3 and the probe 4.

[0020] The outer side of the probe 4 is surrounded by a fixed cover 6 that fits on the lower side wall of the sealing cover 2. The side walls of the fixed cover 6 and the inner wall of the collection box 1 are commonly connected with a fixed rod 5, and the outer wall of the fixed cover 6 is fixedly connected with an air pump 7, and the output end of the air pump 7 is connected to the inside of the fixed cover 6. The lower side wall of the fixed cover 6 is fixedly connected with a motor 8. The motor 8 adopts a servo motor of the MR-J2S-10A model. The end of the output shaft of the motor 8 is vertically downward and fixedly connected with a sealing disk 9. The upper side wall of the sealing disk 9 is provided with a collection hole 10, and the lower side wall of the sealing disk 9 is provided with a plurality of collection tubes 11 that are fixedly penetrated through the inner bottom wall of the collection box 1. The length of each collection tube 11 is The degree of uniformity is not uniform. When collecting, first start the motor 8 to drive the sealing disk 9 to rotate so that the collection hole 10 is aligned with a collection tube 11, and then start the air pump 7 to draw the flue gas at the collection point corresponding to the collection tube 11 into the fixed cover 6. By using the cooperation of the probe 4 and the flue gas analyzer 3, the collection and analysis of the flue gas information of the collection point can be realized, and the information is transmitted to the external host for the staff to understand, and then continue to rotate the sealing disk 9 to make the collection hole 10 aligned with the next collection tube 11, and the flue gas information of the next collection point can be collected, thereby realizing the collection and analysis of the flue gas at different collection points in the flue gas pipeline to ensure the accuracy of data detection.

[0021] The diameters of each collection tube 11 are equal, and the upper end of each collection tube 11 is fitted onto the lower side wall of the sealing disk 9, ensuring that there is no gap between the upper end of each collection tube 11 and the sealing disk 9, so that when the collection hole 10 is not aligned with the collection tube 11, smoke cannot enter the collection box 1, thereby ensuring data accuracy.

[0022] It is further explained that the above-mentioned fixed connection should be understood in a broad sense unless otherwise clearly specified and limited. For example, it can be welding, gluing, or one-piece molding, etc., which are conventional means well known to those skilled in the art.

[0023] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A power station boiler flue gas mixed sampling and analysis device, comprising a sampling box (1), characterized in that: The upper side wall of the collection box (1) is provided with a sealing cover (2), the upper side wall of the sealing cover (2) is fixedly connected to a flue gas analyzer (3), the lower side wall of the flue gas analyzer (3) is electrically connected to a probe (4) penetrating the lower side wall of the sealing cover (2), the outer side of the probe (4) is surrounded by a fixed cover (6) attached to the lower side wall of the sealing cover (2), the side walls of the fixed cover (6) and the inner wall of the collection box (1) are both connected to fixed rods (5), and the outer wall of the fixed cover (6) is fixedly connected to the inner wall of the collection box (1). An air pump (7) is fixedly connected, the output end of the air pump (7) is communicated with the interior of the fixed cover (6), the lower side wall of the fixed cover (6) is fixedly connected to a motor (8), the output shaft end of the motor (8) is vertically downward and fixedly connected to a sealing disk (9), the upper side wall of the sealing disk (9) is provided with a collection hole (10), and the lower side wall of the sealing disk (9) is provided with a plurality of collection tubes (11) fixedly penetrating the inner bottom wall of the collection box (1), and the length of each of the collection tubes (11) is different.

2. A power plant boiler flue gas mixed sampling and analysis device according to claim 1, characterized in that: A bolt (12) is threadedly connected between the upper side wall of the sealing cover (2) and the upper side wall of the collection box (1).

3. The power station boiler flue gas mixed sampling and analysis device according to claim 1 is characterized in that: The diameters of each of the collection tubes (11) are equal.

4. A power plant boiler flue gas mixed sampling and analysis device according to claim 1, characterized in that: The upper end of each collection tube (11) is in contact with the lower side wall of the sealing disk (9).

5. The power station boiler flue gas mixed sampling and analysis device according to claim 1 is characterized in that: The motor (8) is a servo motor of the MR-J2S-10A model.

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