Extraction type high-concentration stationary pollution source tester

Abstract

The utility model discloses an extraction type high-concentration stationary pollution source tester which comprises a first shell and a second shell, the second shell and the first shell are both arranged to be of an L-shaped structure, vertical grooves are formed in the vertical inner sides of the first shell and the second shell, horizontal grooves are formed in the horizontal outer sides of the first shell and the second shell, and the first shell and the second shell are arranged in parallel. The horizontal groove is communicated with the vertical groove; a first insulating spacer, a first electric field generating plate, a beta source, an activity control plate, a signal collecting plate and a second insulating spacer are arranged in a space defined by the two vertical grooves, and one side of the second insulating spacer is connected with the second shell; a third insulating spacer and a second electric field generating plate are arranged in the horizontal groove, and the second electric field generating plate is connected with the third insulating spacer. By adopting the structure, accurate measurement of particulate matters in high-concentration flue gas is realized, consumables are not needed, the structure is simple, and the field test time and the whole test period are shortened.

Description

Technical Field

[0001] The utility model relates to the technical field of particulate matter detection for stationary pollution sources, in particular to an extraction type high-concentration stationary pollution source detector. Background Art

[0002] Stationary pollution is usually targeted at atmospheric pollution sources. An atmospheric stationary pollution source refers to a fixed emission source of atmospheric pollutants, including boilers, kilns, and exhaust pipes of factories, enterprises, food and beverage service units, and residents for daily life. Among them, boilers are one of the main emission devices of atmospheric stationary pollution sources. With the development of human production and the prosperity of life, especially the development of modern industry, agriculture, and energy, the harm caused by pollutants emitted by atmospheric stationary pollution sources to the environment has become increasingly obvious. Currently, the main methods for detecting stationary pollution sources are the gravimetric method, and there are also light scattering, oscillating microbalance, and beta-ray methods. The beta-ray method is mainly divided into two types: one is the filter tape type, and the other is the ionization chamber structure. Currently, on the market, the concentration of atmospheric particulate matter is measured based on the principle that the attenuation of beta rays passing through the dust collection filter tape and the blank filter tape is proportional to the mass. This method has filter tape consumables and is greatly affected by air humidity, which affects the accuracy. The above methods cannot measure the concentration of high-concentration stationary pollution sources and are only suitable for ultra-low emissions, stationary pollution sources below 50 mg / m 3 Therefore, it is necessary to design an extraction type high-concentration stationary pollution source detector. Summary of the Utility Model

[0003] The purpose of the utility model is to provide an extraction type high-concentration stationary pollution source detector, which realizes the accurate measurement of particulate matter in high-concentration flue gas, without consumables, has a simple structure, and shortens the on-site test time and the overall test cycle.

[0004] To achieve the above purpose, the utility model provides an extraction type high-concentration stationary pollution source detector, including a first outer shell and a second outer shell connected to the first outer shell relatively. Both the second outer shell and the first outer shell are set as L-shaped structures. Vertical grooves are arranged on the vertical inner sides of the first outer shell and the second outer shell, and horizontal grooves are arranged on the horizontal outer sides of the first outer shell and the second outer shell. The horizontal grooves are communicated with the vertical grooves;

[0005] Inside the space formed by the two vertical grooves, there are a first insulating gasket, a first electric field generating plate, a β source, an activity control plate, a signal collection plate, and a second insulating gasket. One side of the second insulating gasket is connected to the second housing, and the other side is connected to one side of the signal collection plate. The other side of the signal collection plate is connected to one side of the activity control plate. The other side of the activity control plate is connected to one side of the β source. The other side of the β source is connected to one side of the first electric field generating plate. The other side of the first electric field generating plate is connected to one side of the first insulating gasket. The other side of the first insulating gasket is connected to the first housing;

[0006] Inside the horizontal groove, there are a third insulating gasket and a second electric field generating plate. The upper surface of the second electric field generating plate is connected to the third insulating gasket, and the upper surface of the third insulating gasket is connected to the inner walls of the first housing and the second housing.

[0007] Preferably, the gap between the signal collection plate and the β source is a gas flow stable region, and the horizontal groove is a gas flow region.

[0008] Preferably, the horizontal groove is arranged in a funnel-shaped structure.

[0009] Preferably, mounting heads are provided at both the upper and lower ends of the first insulating gasket, the first electric field generating plate, the activity control plate, the signal collection plate, and the second insulating gasket, and mounting holes are provided on the mounting heads.

[0010] Preferably, horizontal mounting heads are provided at both ends of the second electric field generating plate and the third insulating gasket, and horizontal mounting holes are provided on the horizontal mounting heads.

[0011] Therefore, the extraction type high-concentration fixed pollution source measuring instrument with the above structure realizes accurate measurement of particulate matter in high-concentration flue gas, without consumables, has a simple structure, and shortens the on-site test time and the overall test cycle.

[0012] Next, through the drawings and embodiments, the technical solutions of the present invention will be further described in detail. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is an exploded view of the structure of an embodiment of an extraction type high-concentration fixed pollution source measuring instrument of the present invention;

[0014] Figure 2 is a sectional view of an embodiment of an extraction type high-concentration fixed pollution source measuring instrument of the present invention;

[0015] Figure 3This is the bottom view of an embodiment of the extraction type high-concentration stationary pollution source detector of the present utility model. Detailed implementation manners

[0016] The technical solutions of the present utility model will be further described below with reference to the accompanying drawings and embodiments.

[0017] Unless otherwise defined, the technical terms or scientific terms used in the present utility model shall have the ordinary meanings understood by those with ordinary skills in the field to which the present utility model belongs. The "first", "second" and similar terms used in the present utility model do not indicate any order, quantity or importance, but are only used to distinguish different components. The terms such as "including" or "comprising" mean that the elements or objects appearing before this word cover the elements or objects listed after this word and their equivalents, without excluding other elements or objects. The terms such as "connected" or "coupled" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. The terms such as "upper", "lower", "left" and "right" are only used to represent relative positional relationships, and when the absolute position of the object to be described changes, the relative positional relationship may also change accordingly.

[0018] Embodiment

[0019] Figure 1 This is the structural explosion view of an embodiment of the extraction type high-concentration stationary pollution source detector of the present utility model. Figure 2 This is the sectional view of an embodiment of the extraction type high-concentration stationary pollution source detector of the present utility model. Figure 3This is the bottom view of an embodiment of an extraction type high-concentration fixed pollution source detector of the present utility model. As shown in the figure, the present utility model provides an extraction type high-concentration fixed pollution source detector, which includes a first outer shell 1 and a second outer shell 2 connected to the first outer shell 1 relatively. Both the second outer shell 2 and the first outer shell 1 are arranged in an L-shaped structure. Vertical grooves 3 are arranged on the vertical inner sides of the first outer shell 1 and the second outer shell 2, and horizontal grooves 4 are arranged on the horizontal outer sides of the first outer shell 1 and the second outer shell 2. The horizontal grooves 4 are communicated with the vertical grooves 3. A first insulating gasket 5, a first electric field generating plate 6, a β source 7, an activity control plate 8, a signal collecting plate 9 and a second insulating gasket 10 are arranged in the space surrounded by the two vertical grooves 3. One side of the second insulating gasket 10 is connected to the second outer shell 2, the other side of the second insulating gasket 10 is connected to one side of the signal collecting plate 9, the other side of the signal collecting plate 9 is connected to one side of the activity control plate 8, the other side of the activity control plate 8 is connected to one side of the β source 7, the other side of the β source 7 is connected to one side of the first electric field generating plate 6, the other side of the first electric field generating plate 6 is connected to one side of the first insulating gasket 5, and the other side of the first insulating gasket 5 is connected to the first outer shell 1. A third insulating gasket 11 and a second electric field generating plate 12 are arranged in the horizontal groove 4. The upper surface of the second electric field generating plate 12 is connected to the third insulating gasket 11, and the upper surface of the third insulating gasket 11 is connected to the inner walls of the first outer shell 1 and the second outer shell 2. After the high-concentration gas diffuses into the sensor, it affects the signal reception of the upper β source, thereby measuring the gas concentration.

[0020] The gap between the signal collecting plate 9 and the β source 7 is an air flow stable area 13, and the horizontal groove 4 is a gas flow area 14. The horizontal groove 4 is arranged in a funnel-shaped structure.

[0021] Installation heads are arranged at the upper and lower ends of the first insulating gasket 5, the first electric field generating plate 6, the activity control plate 8, the signal collecting plate 9 and the second insulating gasket 10, and installation holes are arranged on the installation heads. Horizontal installation heads are arranged at both ends of the second electric field generating plate 12 and the third insulating gasket 11, and horizontal installation holes are arranged on the horizontal installation heads.

[0022] Therefore, the extraction type high-concentration fixed pollution source detector adopting the above structure in the present utility model realizes the accurate measurement of particulate matter in high-concentration flue gas, without consumables, and has a simple structure, shortening the on-site test time and the overall test cycle.

[0023] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present utility model rather than to limit them. Although the present utility model has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that: they can still modify or equivalently replace the technical solutions of the present utility model, and these modifications or equivalent replacements cannot make the modified technical solutions deviate from the spirit and scope of the technical solutions of the present utility model.

Claims

1. An extractable high-concentration fixed pollution source measuring instrument, characterized in that: The invention comprises a first shell and a second shell connected to the first shell, wherein the second shell and the first shell are both configured as L-shaped structures, the vertical inner sides of the first shell and the second shell are both configured with vertical grooves, and the horizontal outer sides of the first shell and the second shell are both configured with horizontal grooves, and the horizontal grooves are connected to the vertical grooves; A first insulating gasket, a first electric field generating plate, a β source, an activity control plate, a signal collecting plate and a second insulating gasket are arranged in a space surrounded by the two vertical grooves, one side of the second insulating gasket is connected to the second shell, the other side of the second insulating gasket is connected to one side of the signal collecting plate, the other side of the signal collecting plate is connected to one side of the activity control plate, the other side of the activity control plate is connected to one side of the β source, the other side of the β source is connected to one side of the first electric field generating plate, the other side of the first electric field generating plate is connected to one side of the first insulating gasket, and the other side of the first insulating gasket is connected to the first shell; A third insulating gasket and a second electric field generating plate are arranged in the horizontal groove, an upper surface of the second electric field generating plate is connected to the third insulating gasket, and an upper surface of the third insulating gasket is connected to the inner walls of the first shell and the second shell.

2. The extractable high-concentration fixed pollution source measuring instrument according to claim 1 is characterized in that: The gap between the signal collecting plate and the β source is an airflow stabilization area, and the horizontal groove is a gas flow area.

3. The extractable high-concentration fixed pollution source measuring instrument according to claim 2 is characterized in that: The horizontal groove is configured as a funnel structure.

4. The extractable high-concentration fixed pollution source measuring instrument according to claim 3 is characterized by: The upper and lower ends of the first insulating gasket, the first electric field generating plate, the activity control plate, the signal collecting plate and the second insulating gasket are all provided with mounting heads, and the mounting heads are all provided with mounting holes.

5. The extractable high-concentration fixed pollution source measuring instrument according to claim 4 is characterized in that In: Both ends of the second electric field generating plate and the third insulating spacer are provided with horizontal mounting heads. The horizontal mounting heads are all provided with horizontal mounting holes.

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