A multi-chambered negative pressure powder sampling device without a power source

Abstract

The utility model discloses a kind of unpowered multi-chamber negative pressure powder sampling devices, including sampler outer shell and sampler body, the sampler outer shell is the bottom end not closed cylindrical structure, its top is equipped with flange one, simultaneously the sampler outer shell lateral wall is equipped with several sampling holes;The sampler body can be movably inserted in the inside of the shell, its bottom is closed structure, and the sampler body is equipped with flange two with the same outer diameter as sampler outer shell flange one, the inside of the sampler body is equipped with the same number of chamber as sampling hole, each chamber is equipped with feed inlet, the feed inlet position is directly with corresponding sampling hole position, and both are communicated;The utility model can quickly sample from negative pressure dust conveying environment sampling hole position without additional external power supply, and sample can be stored separately by the multi-chamber during sampling process, to avoid sample contamination.

Description

Technical Field

[0001] This utility model belongs to the technical field of dust sampling and desulfurization agent sampling in negative pressure environment of flue gas desulfurization in metallurgical enterprises, and particularly relates to a multi-chamber negative pressure powder sampling device without power source. Background Technology

[0002] Application number CN202420871229.1 and publication number CN222599263U, entitled "A Coal Powder Sampling Device," specifically discloses a coal powder sampling device, including a powder collector with an input end, an exhaust end, and a collection pipe. The exhaust end is connected to a negative pressure power source, creating a negative pressure environment within the powder collector's internal space. A sampling component, mounted on the powder collector, includes a sampling tube and a negative pressure tube. The sampling tube is connected to the collection pipe, with one end of the negative pressure tube connected to the internal space of the powder collector and the other end connected to the sampling tube. A coal powder bin is connected to the output end of the collection pipe, and an air-locking mechanism is provided between the coal powder bin and the output end of the collection pipe to prevent gas in the coal powder bin from entering the collection pipe. This type of sampling device requires a separate negative pressure power source and a simultaneously configured dust collection device, resulting in a complex equipment composition and making rapid sampling impossible. Utility Model Content

[0003] The purpose of this invention is to solve the problems in the prior art by proposing a multi-chamber negative pressure powder sampling device without a power source. It can quickly sample from the sampling port of the negative pressure dust conveying environment without the need for an additional external power source. At the same time, the sampling process can achieve separate storage of samples through the set multi-chamber, avoiding sample contamination, meeting the needs of multiple sampling points at one time, and improving sampling efficiency and frequency.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: A non-powered multi-chamber negative pressure powder sampling device includes a sampler housing and a sampler body. The sampler housing is a cylindrical structure with an open bottom and a flange at the top for matching the sampling port in the negative pressure environment. The side wall of the sampler housing is provided with several sampling ports. The sampler body can be movably inserted into the outer shell. Its bottom is a closed structure. The sampler body is provided with a second flange with the same outer diameter as the first flange of the sampler outer shell. The sampler body has the same number of chambers as the sampling holes inside. Each chamber is provided with a feed port. The position of the feed port is the same as the position of the corresponding sampling hole, and the two are connected.

[0005] This utility model further defines the technical solution as follows: Preferably, the sampler housing has three sampling holes on its side wall, the three sampling holes are arranged along the longitudinal direction of the sampler housing, and the included angle between any two adjacent sampling holes along the circumference of the sampler housing is 120°.

[0006] Preferably, the outer diameter of the sampler body is 2mm to 5mm smaller than the inner diameter of the sampler outer shell.

[0007] Preferably, a handle with a length of 180mm-200mm is provided on the outer side of the flange.

[0008] Preferably, the flange 2 is provided with a positioning arrow to confirm the corresponding position of the sampling chamber of the sampler body and the sampling hole of the sampler housing.

[0009] Preferably, a groove is provided on the outer wall of the sampler body between two adjacent feed ports, and a flexible sealing ring is provided on the groove, so that the sampling holes are isolated from each other and the feed ports are isolated from each other through the flexible sealing ring.

[0010] In summary, the technical effects and advantages of this utility model are as follows: This utility model has a simple structure and is easy to maintain. The negative pressure sampler can be directly inserted for sampling through the sampling hole reserved in the negative pressure conveying pipeline or negative pressure flue gas pipeline. The negative pressure environment is isolated by the sampler shell flange and the reserved sampling hole, which can effectively prevent the sampler from being sucked into the ambient air of the sampling system during the sampling process. By rotating the negative pressure sampler body, the sampler can be switched to the unfeeded chamber for continued sampling through the indicator. Since the sampling port position is set differently, the sampled chamber cannot continue to be fed after rotation, which can ensure that the sampled powder is not contaminated. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is an internal sectional view of the present invention; Figure 3 This is a schematic diagram of the cross-sectional structure of the present invention; Figure 4 This is a schematic diagram of the flange structure in this utility model. Detailed Implementation

[0012] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0013] like Figure 1 - Figure 4As shown, a multi-chamber negative pressure powder sampling device without power source includes a sampler housing 1 and a sampler body 2. The sampler housing is a cylindrical structure with an open bottom. The top of the sampler housing is provided with a flange 3 for matching the sampling port in the negative pressure environment. At the same time, the side wall of the sampler housing is provided with three sampling ports 4. The three sampling ports are arranged along the longitudinal direction of the sampler housing, and the included angle between any two adjacent sampling ports along the circumference of the sampler housing is 120°. The outer diameter of the sampler body is 5mm smaller than the inner diameter of the sampler housing. The sampler body can be movably inserted into the housing. Its bottom is a closed structure. The sampler body is provided with a second flange 5 with the same outer diameter as the first flange of the sampler housing. A handle 6 with a length of 180mm is provided on the outside of the second flange. At the same time, the second flange is provided with a positioning arrow 7 for confirming the corresponding position of the sampling chamber of the sampler body and the sampling hole of the sampler housing. The sampler body has 3 sampling chambers 8 inside. The 3 sampling chambers are evenly arranged at 120° along the circumference of the sampler body. The bottom of the sampler body is closed. Each chamber is provided with a feed port 9. The position of the feed port is aligned with the position of the corresponding sampling hole and the two are connected. There is a groove on the outer wall of the sampler body between two adjacent feed ports, and a flexible sealing ring 10 is provided in the groove.

[0014] In this embodiment, the top of both the outer shell and the main body of the sampler are provided with flanges of the same outer diameter. During assembly, the flanges are fitted together to achieve axial positioning and ensure that the sampling hole and the feed hole are aligned at the same height. The flange two of the main body of the sampler is provided with positioning arrows, and the arrows correspond one-to-one with the position of each sampling cavity. The operator can visually confirm the currently aligned sampling hole and cavity through the arrows. When rotating the sampler body, simply adjust the angle according to the arrow direction to accurately switch the sampling chamber without repeated calibration, thus improving sampling efficiency and positional accuracy.

[0015] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A multi-chamber negative pressure powder sampling device without a power source, comprising a sampler housing and a sampler body, characterized in that, The sampler housing is a cylindrical structure with an open bottom and a flange at the top for use with a negative pressure environment sampling port. The sampler housing has several sampling ports on its side wall. The sampler body can be movably inserted into the outer shell. Its bottom is a closed structure. The sampler body is provided with a second flange with the same outer diameter as the first flange of the sampler outer shell. The sampler body has the same number of chambers as the sampling holes inside. Each chamber is provided with a feed port. The position of the feed port is the same as the position of the corresponding sampling hole, and the two are connected.

2. The non-powered multi-chamber negative pressure powder sampling device according to claim 1, characterized in that, The sampler housing has three sampling holes on its side wall. The three sampling holes are arranged longitudinally along the sampler housing, and the included angle between any two adjacent sampling holes along the circumference of the sampler housing is 120°.

3. The non-powered multi-chamber negative pressure powder sampling device according to claim 1, characterized in that, The outer diameter of the sampler body is 2mm to 5mm smaller than the inner diameter of the sampler outer shell.

4. The non-powered multi-chamber negative pressure powder sampling device according to claim 1, characterized in that, The flange has a handle on its outer side, which is 180mm-200mm in length.

5. The non-powered multi-chamber negative pressure powder sampling device according to claim 1, characterized in that, The flange 2 is provided with a positioning arrow to confirm the corresponding position of the sampling chamber of the sampler body and the sampling hole of the sampler outer shell.

6. The non-powered multi-chamber negative pressure powder sampling device according to claim 1, characterized in that, A groove is formed on the outer wall of the sampler body between two adjacent feed ports, and a flexible sealing ring is provided in the groove.

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